EP0091040A2 - Disjoncteur de protection à courant excessif - Google Patents

Disjoncteur de protection à courant excessif Download PDF

Info

Publication number: EP0091040A2
Authority: EP; European Patent Office
Prior art keywords: lever; contact; overcurrent protection; protection switch; actuating element
Prior art date: 1982-04-03
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

EP83103009A

Other languages

German (de)

English (en)

Other versions

EP0091040B1 (fr

EP0091040A3 (en

Inventor

Fritz Krasser

Josef Peter

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.)

Ellenberger and Poensgen GmbH

Original Assignee

Ellenberger and Poensgen 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.)

1982-04-03

Filing date

1983-03-26

Publication date

1983-10-12

1983-03-26 Application filed by Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH

1983-10-12 Publication of EP0091040A2 publication Critical patent/EP0091040A2/fr

1985-03-27 Publication of EP0091040A3 publication Critical patent/EP0091040A3/de

1987-06-03 Application granted granted Critical

1987-06-03 Publication of EP0091040B1 publication Critical patent/EP0091040B1/fr

Status Expired legal-status Critical Current

Links

Images

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
- H01H71/528—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a toggle or collapsible link between handle and contact arm, e.g. sear pin mechanism
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
- H01H2300/048—Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged

Definitions

the invention relates to an overcurrent protection switch with the features of the preamble of claim 1.
a switch is known from DE-PS 593 512.
the movement of the actuating element is transmitted to a pivotable contact arm which, together with a contact fixed to the housing, forms the main contact of the switch.
a restraining stop cooperating with the actuating element ensures that the contact elements close suddenly (momentary activation) when the contact is switched on.
the known switch has the disadvantage that relatively large masses are firmly coupled to the contact arm when it is switched on and off and thus influence its switching behavior. There is also a risk of false triggering due to fluttering movements of the armature of the magnetic release.
the invention has for its object to design a switch of the type mentioned in such a way that it has a defined switching behavior with a compact design and uncomplicated handling.
the contact arm rests in its central region on the retaining stop, which is part of a separate component that is independent of the contact arm, and takes it with it when it snaps into the closed position.
This makes it possible to dispense with further parts of the switch lock which trigger the yielding closing movement of the restraint stop, which increases the operational reliability of the switch.
the contact arm can freely move upwards into the open position, as a result of which the inertia of the locking mechanism does not have a negative effect on the switching time.
a particularly simple and functional way of arranging and guiding the restraint stop teaches claim 2, it being emphasized that the release of the restraint stop is carried out directly and thus in a structurally simple manner by the actuating element itself.
Claims 4 and 5 ensure that when the switch is switched off or overcurrent tripped, the retaining pawl jumps back into its retaining position.
the spring exerts a torque on the retaining pawl via the projection, which it engages under, such that when the main contact opens, the retaining pawl securely latches behind the housing projection holding it in the retaining position and simultaneously exerts a system pressure directed against the actuating element.
the characterizing features of claim 7 ensure that the hinged anchor remains quietly in its rest position and "sticks" to the shunt bend until the force exerted on it by the coil flow is greater than the holding force of the shunt bend. This prevents the armature from fluttering and thus prevents premature tripping if necessary.
Claim 10 enables the switch lock according to the invention to be used in different switch housings, which simplifies the storage of components.
Claim 11 is concerned with a special, particularly functional design of the transmission of the axial movement of a push button on the stretching lever.
Claim 12 enables control of an auxiliary circuit switch known per se.
the key switch (Fig. 2,3,5 to 7)
the switch lock is operated manually via the rocker arm 1. This is rotatably mounted in the two housing halves with its pins 3 on both sides. In the drawing, the lower housing part 2 is shown. A joint 4 is arranged in the inner region of the rocker arm.
the toggle lever element consisting of the first stretching lever 5 and the second stretching lever 6, is mounted on it, which in turn is rotatably connected by means of the knee joint 7.
the lower end of the toggle lever element is articulated to the contact arm 9 via the bolt 8.
the stretching lever 5 is approximately triangular and has a further pivot point 10 in the third corner, in which a latching lever 11 is mounted.
the latch lever can hook with a catch 12 of the extension lever 6, so that the knee joint 7 becomes stiff.
the latched knee joint is shown in FIG.
the force component is aligned so that a left-turning torque is exerted on the rocker arm 1.
the rocker arm 1 comes to rest in this position.
the key switch is cocked.
the force component of the tensioned switch lock is greater than the counterforce of the torsion spring (not shown) on the rocker arm 1.
the knee joint 7 remains locked.
the contacts are influenced solely by the rocker arm positions.
the switch lock is triggered automatically via the magn.-hydr. Trigger 15.
the hinged armature 16 When there is a corresponding overcurrent, the hinged armature 16 picks up and rotates about the pivot point 17. The arm 18 of the hinged armature 16 presses against the latching lever 11 and moves it upward. The latching between the latch lever 11 and the catch 12 of the extension lever 6 is released and the knee joint 7 collapses. This is caused by the torsion spring 19, which moves the contact arm 9 upwards by its spring force.
the circle of the magnetic hydraulic release has a magnetic yoke 20 which is provided with a shunt bend 22 connected to the magnetic core 21.
the yoke In the middle area, the yoke carries lateral tabs in which the parts of the key switch are stored and guided.
the rest of the magnetic flux goes from the hinged armature 16 to the core 21.
the hinged armature 16 can be fixed in its rest position more or less long. Only with larger currents does the pulling force between the hinged armature 16 and the core 21 prevail and the hinged armature 16 can tear away from its contact point on the shunt bend 22.
the retaining pawl 23 is rotatably and displaceably mounted on the bolt 26.
the retaining pawl 23 is pressed against the bolt 25 by the compression spring 24 (FIG. 5). If the key switch is moved to the switch-on position, the toggle lever element leads the contact arm 9 downwards. This movement is slowed down by the stop 28.
the bolt 8 moves freely and unhindered in the backdrop 27. This position is shown in FIG. 7. When the rocker arm 1 moves further, the main contact 48 cannot close.
the stop 28 acts as a fulcrum, so that the contact arm 9 is at its fulcrum 13 means of the bearing groove 57 moves.
the coupling for manual actuation takes place on the rocker arms 1 by interposing the coupling piece 30.
the parts mentioned are connected to one another by suitable mechanical elements. This is shown in FIG. 1 using a two-pole device consisting of two individual devices (device 31 and device 32).
the operating lever 42 has two attachment points.
the stop point 43 is moved downward by the contact arm 9. With it, the stop point 44 moves against the contact spring and causes it to snap.
the current flows from the connection 45 to the coil of the magnetic hydraulic release 15, from this via a wire to the contact arm 9 and then via the contact pair to the connection 46.
Quenching plates are arranged in the region of the contacts.
the arc gases can be blown out via appropriate channels in the housing.
Fig. 8 again shows the switch lock with magnetic release, which can be used as a prefabricated component in the housing of different dimensions and designs (Fig. 9 and Fig. 10).
the actuating element is a push-pull button 60 which is axially displaceable in a screw sleeve 61 on the upper side 62 of the housing is arranged. Its inner end 63 interacts via an arm 64 by means of a pin 66 guided in an elongated hole 65 with a pivot lever 67 which converts the axial button movement into a pivoting movement and is pivotably mounted on an axis 68 fixed to the housing and with the first stretching lever 5 via a joint 69 connected is.
the unit 58 corresponds in function and components to the switch already described.
Auxiliary contacts 38 are arranged on the lower side of the housing facing away from the actuating element (push-pull button 60) and are actuated via an actuating lever 70 which interacts with the contact side of the contact arm 9.
the assembly 58 is also used in the exemplary embodiment shown in FIG. 10 of a switch which can be placed on a switch rail, the actuating element also being designed as a rocker arm as in the first exemplary embodiment explained.
the connection elements 71-74 for the main and auxiliary circuit are in the side area of the housing.

Landscapes

Breakers (AREA)

EP83103009A 1982-04-03 1983-03-26 Disjoncteur de protection à courant excessif Expired EP0091040B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3212474		1982-04-03
DE3212474A DE3212474C2 (de)	1982-04-03	1982-04-03	Überstromschutzschalter

Publications (3)

Publication Number	Publication Date
EP0091040A2 true EP0091040A2 (fr)	1983-10-12
EP0091040A3 EP0091040A3 (en)	1985-03-27
EP0091040B1 EP0091040B1 (fr)	1987-06-03

Family

ID=6160177

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP83103009A Expired EP0091040B1 (fr)	1982-04-03	1983-03-26	Disjoncteur de protection à courant excessif

Country Status (2)

Country	Link
EP (1)	EP0091040B1 (fr)
DE (3)	DE3212474C2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2176659A (en) *	1985-05-01	1986-12-31	Mitsubishi Electric Corp	Circuit interrupter
EP0146528A3 (en) *	1983-11-28	1987-01-21	Felten & Guilleaume Fabrik Elektrischer Apparate Aktiengesellschaft Schrems-Eugenia Niederosterreich	Switching mechanism for a protective power circuit breaker
FR2654253A1 (fr) *	1989-11-03	1991-05-10	Schupa Elektro Gmbh & Co Kg	Dispositif de fermeture brusque des constacts de leviers mobiles, notamment pour disjoncteur bipolaire de protection contre les courants de fuite.
EP0847070A3 (fr) *	1996-02-06	1998-11-04	Rockwell Automation AG	Disjoncteur de surintensité, en particulier disjoncteur pour moteur
EP2688085A1 (fr) *	2012-07-17	2014-01-22	Abb Ag	Commutateur d'installation électrique
EP3767660A1 (fr) *	2019-07-16	2021-01-20	Eaton Intelligent Power Limited	Dispositif de commutation
WO2022028849A1 (fr) *	2020-08-07	2022-02-10	Siemens Aktiengesellschaft	Mécanisme de commutation à ressort compact indépendant de l'opérateur et dispositif de commutation de protection électromécanique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102019219314A1 (de) *	2019-12-11	2021-06-17	Siemens Aktiengesellschaft	Elektrischer Schalter mit einem Verrastmechanismus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE593512C (de) *		1934-02-27	Siemens Schuckertwerke Akt Ges	Installationsselbstschalter mit Momenteinschaltung
CH178667A (de) *	1933-07-04	1935-07-31	Stotz Kontakt Gmbh	Vorrichtung zur Momenteinschaltung an elektrischen Selbstschaltern.
DE959291C (de) *	1950-05-25	1957-03-07	Siemens Ag	Elektromagnetischer UEberstromausloeser fuer Wechselstrom
US2700711A (en) *	1951-12-14	1955-01-25	Heinemann Electric Co	Automatic circuit breaker
DE1187722B (de) *	1960-05-17	1965-02-25	Licentia Gmbh	Selbstschalter mit elektromagnetischen und/oder thermischen Ausloesern
US3329912A (en) *	1965-10-01	1967-07-04	Wood Electric Corp	Multipole circuit breaker with interconnected toggle locks and contact members
DE2015624A1 (de) *	1970-04-02	1971-10-21	Bbc Brown Boveri & Cie	Selbstschalter
DE2132738B1 (de) *	1971-07-01	1972-07-06	Ellenberger & Poensgen	Ein- oder mehrpoliger UEberstromschalter mit thermischer und/oder elektromagnetischer Ausloesung
DE2656877A1 (de) *	1975-12-22	1977-07-07	Mitsubishi Electric Corp	Elektromagnetische vorrichtung, insbesondere ueberstrom-ausloesevorrichtung

1982
- 1982-04-03 DE DE3212474A patent/DE3212474C2/de not_active Expired
- 1982-04-03 DE DE8209597U patent/DE8209597U1/de not_active Expired
1983
- 1983-03-26 EP EP83103009A patent/EP0091040B1/fr not_active Expired
- 1983-03-26 DE DE8383103009T patent/DE3371959D1/de not_active Expired

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0146528A3 (en) *	1983-11-28	1987-01-21	Felten & Guilleaume Fabrik Elektrischer Apparate Aktiengesellschaft Schrems-Eugenia Niederosterreich	Switching mechanism for a protective power circuit breaker
GB2176659A (en) *	1985-05-01	1986-12-31	Mitsubishi Electric Corp	Circuit interrupter
US4743878A (en) *	1985-05-01	1988-05-10	Mitsubishi Denki Kabushiki Kaisha	Circuit interrupter
GB2176659B (en) *	1985-05-01	1989-05-10	Mitsubishi Electric Corp	Circuit interrupter
FR2654253A1 (fr) *	1989-11-03	1991-05-10	Schupa Elektro Gmbh & Co Kg	Dispositif de fermeture brusque des constacts de leviers mobiles, notamment pour disjoncteur bipolaire de protection contre les courants de fuite.
BE1005375A0 (fr) *	1989-11-03	1993-07-06	Schupa Elektro Gmbh & Co Kg	Dispositif d'enclenchement brusque d'un levier de contact monte de facon mobile, en particulier pour un commutateur de protection contre des courants de defaut.
EP0847070A3 (fr) *	1996-02-06	1998-11-04	Rockwell Automation AG	Disjoncteur de surintensité, en particulier disjoncteur pour moteur
EP2688085A1 (fr) *	2012-07-17	2014-01-22	Abb Ag	Commutateur d'installation électrique
EP3767660A1 (fr) *	2019-07-16	2021-01-20	Eaton Intelligent Power Limited	Dispositif de commutation
WO2022028849A1 (fr) *	2020-08-07	2022-02-10	Siemens Aktiengesellschaft	Mécanisme de commutation à ressort compact indépendant de l'opérateur et dispositif de commutation de protection électromécanique

Also Published As

Publication number	Publication date
EP0091040B1 (fr)	1987-06-03
EP0091040A3 (en)	1985-03-27
DE8209597U1 (de)	1986-11-13
DE3212474A1 (de)	1983-10-13
DE3212474C2 (de)	1986-02-06
DE3371959D1 (en)	1987-07-09

Legal Events

Date	Code	Title	Description
1983-08-13	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1983-10-12	AK	Designated contracting states	Designated state(s): CH DE FR GB IT LI
1983-11-16	ITCL	It: translation for ep claims filed	Representative=s name: RICCARDI SERGIO & CO.
1983-12-23	EL	Fr: translation of claims filed
1985-01-21	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1985-03-27	AK	Designated contracting states	Designated state(s): CH DE FR GB IT LI
1985-07-10	17P	Request for examination filed	Effective date: 19850430
1986-05-07	17Q	First examination report despatched	Effective date: 19860319
1987-04-17	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1987-06-03	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): CH DE FR GB IT LI
1987-07-09	REF	Corresponds to:	Ref document number: 3371959 Country of ref document: DE Date of ref document: 19870709
1987-08-28	ET	Fr: translation filed
1987-09-03	ITF	It: translation for a ep patent filed
1988-04-06	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1988-04-06	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1988-05-25	26N	No opposition filed
1991-03-31	ITTA	It: last paid annual fee
1997-02-04	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19970204 Year of fee payment: 15
1997-03-05	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19970305 Year of fee payment: 15
1997-03-19	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19970319 Year of fee payment: 15
1997-03-24	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 19970324 Year of fee payment: 15
1998-03-26	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980326
1998-03-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980331 Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19980331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980331
1998-11-13	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1998-11-18	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19980326
1998-12-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19981201
1998-12-31	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

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