EP0026416A1 - Mécanisme de commande pour disjoncteur - Google Patents

Mécanisme de commande pour disjoncteur Download PDF

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Publication number
EP0026416A1
EP0026416A1 EP80105660A EP80105660A EP0026416A1 EP 0026416 A1 EP0026416 A1 EP 0026416A1 EP 80105660 A EP80105660 A EP 80105660A EP 80105660 A EP80105660 A EP 80105660A EP 0026416 A1 EP0026416 A1 EP 0026416A1
Authority
EP
European Patent Office
Prior art keywords
lever
contact
release
arm
switching mechanism
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.)
Granted
Application number
EP80105660A
Other languages
German (de)
English (en)
Other versions
EP0026416B2 (fr
EP0026416B1 (fr
Inventor
Günter Ing. grad Böker
Georg Ing. Grad Schedler
Dieter Kropp
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6081835&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0026416(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to AT80105660T priority Critical patent/ATE3091T1/de
Publication of EP0026416A1 publication Critical patent/EP0026416A1/fr
Application granted granted Critical
Publication of EP0026416B1 publication Critical patent/EP0026416B1/fr
Publication of EP0026416B2 publication Critical patent/EP0026416B2/fr
Expired 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
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole
    • 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

Definitions

  • the invention relates to a switching mechanism for circuit breakers, in which an operating knob acts on a spring-loaded contact lever via a latch lever.
  • a switching mechanism is described in DE-OS 26 51 158.
  • This mechanism which has only relatively few components, is disadvantageous, however, because only an indirect impact anchor effect is possible via a switching arm pawl system and the opening movement is impeded by a forced guidance of the switching arm pawl system.
  • the invention has for its object to improve the switching mechanism mentioned at the outset so that it requires the least possible unlatching forces with the least amount of components and achieves short switch-off times. It should also be designed so that a particularly small size is possible.
  • Invention According to this is achieved in that the free-floating arranged in the contact closing direction under the action of a contact spring, in the closed position with its ends on the ratchet lever and on the fixed contact supporting contact lever loosely interacts with a fixed axis, the point of contact of the contact spring on the contact lever between this axis and the Latching point is located and a separately pivoted release lever acts on the one hand on the latch lever and on the other hand can be influenced by the contact lever.
  • 1-4 consists of a contact lever 1, which forms at one end a contact piece 2, which cooperates with a fixed contact piece 3. At the other end, the contact lever is provided with a latching pin 4 which interacts with a latch lever 5.
  • the one on a manual control gag 6 hinged latch lever is supported with its free end 5a in the switched-on position of the switching mechanism on the latch pin 4 of the contact lever.
  • An angled extension 5b engages around the latching pin and can be influenced by a lever arm 7b of a release lever 7.
  • the release lever which can be pivoted about a stationary axis 8, has a further lever arm 7a, on which the latching pin 4 can act.
  • the contact lever 1 has a notch 13 in the middle between the contact piece 2 and the latching pin 4, said notch 13 being located in the region of a fixed axis 14.
  • a contact spring 16 supported on the housing 15 of the switch acts on the contact lever. The point of contact of the contact spring 16 on the contact lever lies between the latching pin 4 and the notch 13.
  • the contact force is determined by the ratio of the lever arms which are formed by the point of application of the contact spring to the latching pin and by the contact contact point to the latching pin.
  • the distance between the axis 14 and the bottom of the notch 13 is a measure of the burn-up reserve of the switch.
  • the pawl lever 5 is clamped with the control knob 6 which can be pivoted about a fixed axis 6a, so that the contact lever is held in the switch-on position by the end 5a of the pawl lever 5 which is supported on the latching pin 4.
  • the short-circuit or overcurrent switch-off is carried out by the plunger 11 of the magnetic release device or by the bimetal 10.
  • the plunger 11 and the bimetal 10 act in the direction of the arrows 11a and 10a on the slide 9 and move it in the direction of the arrow 9a, so that it strikes with an edge 9b on the lever arm 7c of the release lever 7 and rotates it counterclockwise about the axis 8.
  • the lever arm 7b strikes the angled extension 5b of the latch lever 5 and lifts it so far that the end 5a releases the latching pin 4 of the contact lever 1.
  • the trigger lever reaches the position shown in Fig. 2.
  • the contact lever 1 When the latching pin 4 is released, the contact lever 1 first rotates under the action of the spring 16 about its contact point until the base of the notch 13 comes into contact with the axis 14, which now becomes the pivot axis when the contact lever moves further. Before the release lever 7 has reached the position shown in FIG. 2, the latching pin 4 strikes against the lever arm 7a and thereby accelerates the rotary movement of the release lever. During the switch-off movement of the contact lever 1, the control knob 6 also goes into the switch-off position shown in FIG. 3 together with the latch lever 5. The operating knob 6 is under the action of a spring, not shown, which drives it into the position according to Fig. 3. A spring, also not shown, acting on the latch lever 5 presses it with the angled extension 5b against the edge 7'b of the lever arm 7b . As a result, the end 5a of the pawl lever 5 again engages over the latching pin 4.
  • the mechanism is switched on in such a way that the manual control knob 6 is pivoted counterclockwise, as a result of which the pawl lever 5 acts on the contact lever 1 and in turn pivots it about the axis 14.
  • the contact lever 1 pivots about the axis 14 until it reaches the position shown in Fig. 4, i. H. touches the stationary contact piece 3 with its movable contact piece 2.
  • the contact spring 16 is tensioned.
  • the contact lever lifts off the axis 14 when the manual control knob is pivoted further counterclockwise and then rotates around the contact point of contact during this movement.
  • the final switch-on position is reached when the manual control knob 6, together with the ratchet lever 5, reaches the dead center position.
  • a contact lever 21 with an elongated hole 21c is mounted on a fixed axis 14.
  • the contact lever is fork-shaped at one end and is latched with a short prong 21a by a ratchet lever 25 designed as a wire bracket.
  • a lever arm 27a of a release lever 27 pivotable about a fixed axis 8 acts on this latched end of the wire bracket.
  • a second lever arm 27b of the release lever lies in the effective range of a plunger 11 of a magnetic release coil 12.
  • the contact lever 21 in turn has an angled portion 21d which acts on the rear side of the lever arm 27a during the opening movement.
  • a stop 21f of the contact lever lying in the region of the end of the lever arm 27b is also detected by the plunger 11 of the trigger coil during the short-circuit shutdown, so that the contact lever has an impact. Otherwise, the movement sequences are similar to the arrangement according to FIGS. 1-4.
  • the mechanism according to the invention is particularly advantageous in that, apart from the small number of its components and its small space requirement, because of the separation of the movable contact lever, it allows a connection to the thermal release element with variable bimetallic elements. In addition, because of the latching at one end of the contact lever, the unlatching forces are reduced to a minimum.
  • the possibility of coupling with neighboring switches is also advantageous, so that multipole switches can be created in a simple manner.
  • the release lever has jaws 17 reaching up to the switch walls, the end faces of which have receiving holes 17a for coupling pins or recesses 17b.
  • the coupling pin of a switch engages through openings in the housing in the recess of the adjacent trigger lever jaw and thus produces the coupling.

Landscapes

  • Breakers (AREA)
EP80105660A 1979-09-26 1980-09-20 Mécanisme de commande pour disjoncteur Expired EP0026416B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80105660T ATE3091T1 (de) 1979-09-26 1980-09-20 Schaltmechanismus fuer leitungsschutzschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2938858 1979-09-26
DE2938858A DE2938858C2 (de) 1979-09-26 1979-09-26 Schaltmechanismus für einen Leitungsschutzschalter

Publications (3)

Publication Number Publication Date
EP0026416A1 true EP0026416A1 (fr) 1981-04-08
EP0026416B1 EP0026416B1 (fr) 1983-04-13
EP0026416B2 EP0026416B2 (fr) 1986-02-19

Family

ID=6081835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105660A Expired EP0026416B2 (fr) 1979-09-26 1980-09-20 Mécanisme de commande pour disjoncteur

Country Status (3)

Country Link
EP (1) EP0026416B2 (fr)
AT (1) ATE3091T1 (fr)
DE (1) DE2938858C2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575862A1 (fr) * 1985-01-10 1986-07-11 Licentia Gmbh Dispositif d'encliquetage d'un disjoncteur
EP0202546A2 (fr) * 1985-05-17 1986-11-26 Licentia Patent-Verwaltungs-GmbH Mécanisme de commutation pour disjoncteur de protection de puissance
FR2614467A1 (fr) * 1987-04-21 1988-10-28 Telemecanique Electrique Appareil interrupteur de protection a mecanisme de declenchement simplifie
EP0331384A2 (fr) * 1988-02-27 1989-09-06 DELTA CIRCUIT PROTECTION & CONTROLS LTD. Interrupteur
FR2653932A1 (fr) * 1989-10-31 1991-05-03 Abb Elettrocondutture Spa Disjoncteur miniaturise a structure modulaire pour installations electriques civiles, industrielles et similaires.
WO2016071539A1 (fr) * 2014-11-05 2016-05-12 General Electric Company Disjoncteur à contact flottant mobile
GB2569669A (en) * 2017-12-22 2019-06-26 Eaton Ind Austria Gmbh Self-compensating mechanism for circuit breaker

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119165C2 (de) * 1981-05-14 1986-05-22 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Selbstschalter als Baueinheit aus einem Leitungsschutzschalter sowie Hilfs- und Signalschaltern
DE3200325C2 (de) * 1982-01-08 1986-08-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mechanismus für einen Selbstschalter
US4628288A (en) * 1984-05-15 1986-12-09 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
US4743878A (en) * 1985-05-01 1988-05-10 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
DE3517748C1 (de) * 1985-05-17 1986-02-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltmechanismus für einen Leitungsschutzschalter
DE3619240A1 (de) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Leitungsschutzschalter mit einer eine blaseinrichtung bildenden kontaktanordnung
DE3619242C2 (de) * 1986-06-07 1994-07-21 Kloeckner Moeller Gmbh Schaltmechanismus für einen Leitungsschutzschalter
DE3917326A1 (de) * 1989-05-27 1990-11-29 Licentia Gmbh Schaltmechanismus fuer einen leitungsschutzschalter
DE4040301A1 (de) * 1990-12-17 1992-07-02 Geyer Gmbh & Co Christian Schaltmechanismus
DE19735408B4 (de) * 1997-08-14 2008-04-10 Siemens Ag Schaltmechanismus für einen Schutzschalter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2336222A1 (de) * 1973-07-17 1975-01-30 Baco Const Elect Schaltmechanismus fuer selbstschalter
DE2544470A1 (de) * 1975-10-04 1977-04-07 Geyer Fa Christian Mechanismus fuer selbstschalter
DE2651158A1 (de) * 1975-11-13 1977-05-26 Legrand Sa Abschalter, insbesondere mehrpoliger abschalter
DE7802000U1 (de) * 1978-01-24 1978-10-12 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Leitungsschutzschalter in Flachbauweise

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1915104A1 (de) * 1969-03-25 1970-10-01 Bbc Brown Boveri & Cie Selbstschalter
DD132379B1 (de) * 1976-08-02 1981-04-29 Guenther Kammer Ueberlast-leitungsabschalter in schmalbauweise

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2336222A1 (de) * 1973-07-17 1975-01-30 Baco Const Elect Schaltmechanismus fuer selbstschalter
DE2544470A1 (de) * 1975-10-04 1977-04-07 Geyer Fa Christian Mechanismus fuer selbstschalter
DE2651158A1 (de) * 1975-11-13 1977-05-26 Legrand Sa Abschalter, insbesondere mehrpoliger abschalter
DE7802000U1 (de) * 1978-01-24 1978-10-12 Felten & Guilleaume Carlswerk Ag, 5000 Koeln Leitungsschutzschalter in Flachbauweise

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575862A1 (fr) * 1985-01-10 1986-07-11 Licentia Gmbh Dispositif d'encliquetage d'un disjoncteur
EP0202546A2 (fr) * 1985-05-17 1986-11-26 Licentia Patent-Verwaltungs-GmbH Mécanisme de commutation pour disjoncteur de protection de puissance
EP0202546A3 (en) * 1985-05-17 1989-05-10 Licentia Patent-Verwaltungs-Gmbh Switching mechanism for a protective power circuit breaker
FR2614467A1 (fr) * 1987-04-21 1988-10-28 Telemecanique Electrique Appareil interrupteur de protection a mecanisme de declenchement simplifie
WO1988008614A1 (fr) * 1987-04-21 1988-11-03 La Telemecanique Electrique Appareil interrupteur de protection a mecanisme de declenchement simplifie
EP0331384A3 (fr) * 1988-02-27 1990-10-10 DELTA CIRCUIT PROTECTION & CONTROLS LTD. Interrupteur
EP0331384A2 (fr) * 1988-02-27 1989-09-06 DELTA CIRCUIT PROTECTION & CONTROLS LTD. Interrupteur
FR2653932A1 (fr) * 1989-10-31 1991-05-03 Abb Elettrocondutture Spa Disjoncteur miniaturise a structure modulaire pour installations electriques civiles, industrielles et similaires.
WO2016071539A1 (fr) * 2014-11-05 2016-05-12 General Electric Company Disjoncteur à contact flottant mobile
CN107077980A (zh) * 2014-11-05 2017-08-18 通用电气公司 具有浮动可移动触点的断路器
US10236149B2 (en) 2014-11-05 2019-03-19 Abb Schweiz Ag Circuit breaker having a floating moveable contact
CN107077980B (zh) * 2014-11-05 2020-03-31 Abb瑞士股份有限公司 具有浮动可移动触点的断路器
GB2569669A (en) * 2017-12-22 2019-06-26 Eaton Ind Austria Gmbh Self-compensating mechanism for circuit breaker
GB2569669B (en) * 2017-12-22 2022-02-09 Eaton Ind Austria Gmbh Self-compensating mechanism for circuit breaker

Also Published As

Publication number Publication date
ATE3091T1 (de) 1983-04-15
EP0026416B2 (fr) 1986-02-19
EP0026416B1 (fr) 1983-04-13
DE2938858A1 (de) 1981-04-02
DE2938858C2 (de) 1983-10-13

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