EP0566462B1 - Selbstschalter - Google Patents

Selbstschalter Download PDF

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Publication number
EP0566462B1
EP0566462B1 EP93400938A EP93400938A EP0566462B1 EP 0566462 B1 EP0566462 B1 EP 0566462B1 EP 93400938 A EP93400938 A EP 93400938A EP 93400938 A EP93400938 A EP 93400938A EP 0566462 B1 EP0566462 B1 EP 0566462B1
Authority
EP
European Patent Office
Prior art keywords
opening
spring
contact
lever
breaker
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
EP93400938A
Other languages
English (en)
French (fr)
Other versions
EP0566462A1 (de
Inventor
Jose Maria Elizalde
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.)
ELECTRICAL DISTRIBUTION & CONTROL ESPANA, S.A.
Original Assignee
Electrical Distribution & Control Espana Sa
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 Electrical Distribution & Control Espana Sa filed Critical Electrical Distribution & Control Espana Sa
Publication of EP0566462A1 publication Critical patent/EP0566462A1/de
Application granted granted Critical
Publication of EP0566462B1 publication Critical patent/EP0566462B1/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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures

Definitions

  • the present invention relates to a circuit breaker automatic which presents a whole series of important advantages and important innovations compared to current circuit breakers used for the same purpose or similar.
  • the invention relates to a circuit breaker mechanism having breaking capacity by current limitation.
  • the automatic circuit breaker object of this invention essentially consists of mechanisms who perform the normal closing and opening of the circuit breaker, opening by thermal tripping, opening by magnetic release and opening by short circuit.
  • the normal operating mechanism of establishment and breaker breaker is only formed of five parts: lever, lever spring, connecting rod, spring mechanism and movable contact.
  • DE-A-36 19 239 shows an automatic circuit breaker according to the preamble of claim 1.
  • circuit breaker according to the present invention is distinguished by the characteristics defined in the section Characterizing of claim 1.
  • This engagement is made up of two pieces of wire metallic in which the generators are parallel, the section of the two parts can be arbitrary, cylindrical, square, rectangular, etc.
  • this column By deforming and changing position, this column exerts pressure on the connecting rod, developing a spring action on it to keep it in pre-establishment position regardless of position mounting the switch.
  • the electromagnetic opening device has the novelty that the fixed contact also performs the functions of a magnetic casing, by closing the magnetic circuit of the magnetic tripping mechanism.
  • the fixed contact also performs the functions of a magnetic casing, by closing the magnetic circuit of the magnetic tripping mechanism.
  • it is dimensioned, by its thickness, and thanks to the housing provided for the coil, so that the windings of this coil are concentrated in the interval between the carcass and the movable core, which makes it possible to obtain a mechanism magnetic trip devoid of a fixed core, thereby providing important which will follow from an exemplary embodiment and with reference to the accompanying drawings in which: Figures 1 and 2 are two diagrams of the circuit breaker, in its establishment and breaking positions respectively.
  • the apparatus comprises a case composed of a carcass 1 and a cover 2 in insulating material, a set of components of the electrical current interruption system, and which are manually operated using an M stick that emerges outside the housing, and a fire extinguishing system short circuits 3 essentially formed by a chamber 4 of blowing of the arc, and of an arc track 5.
  • the electrical current interruption system is a mechanism which is composed of five kinematic chains.
  • the first chain A is formed by the lever M which rotates around an axis 10, which is part of the carcass 1, of a connecting rod 11, one end of which is threaded in a hole 12 made in the lever M and in which it can rotate freely, the other end being free, and a spring 14 for resetting the lever.
  • the second kinematic chain B is formed by movable contact CM, which is a piece of conductive material which revolves around axis 20, which is part of the carcass 1, and a mechanism spring 21 having four support points, the first support point 28 (in the position of the closed switch shown in the figure 1) located on the free end 13 of the connecting rod 11 and on the movable contact CM, a fulcrum 22 on the contact mobile CM, and another fulcrum 27 on the carcass 1.
  • the third kinematic chain C is formed by a magnetic trip mechanism which responds electromagnetically to an excess of current in the circuit in which the circuit breaker is inserted.
  • This chain is formed of a movable core 30 which slides inside a spool pin 31.
  • the apparatus comprises a case composed of a carcass 1 and a cover 2 in insulating material, a set of components of the electrical current interruption system, and which are manually operated using an M stick that emerges outside the housing, and a fire extinguishing system short circuits 3 essentially formed by a chamber 4 of blowing of the arc, and of an arc track 5.
  • the electrical current interruption system is a mechanism which is composed of five kinematic chains.
  • the first chain A is formed by the lever M which rotates around an axis 10, which is part of the carcass 1, of a connecting rod 11, one end of which is threaded in a hole 12 made in the lever M and in which it can rotate freely, the other end being free, and a spring 14 for resetting the lever.
  • the second kinematic chain B is formed by movable contact CM, which is a piece of conductive material which revolves around axis 20, which is part of the carcass 1, and a mechanism spring 21 having four support points, the first support point 28 (in the position of the closed switch shown in the figure 1) located on the free end 13 of the connecting rod 11 and on the movable contact CM, a fulcrum 22 on the contact mobile CM, and another fulcrum 27 on the carcass 1.
  • the third kinematic chain C is formed by a magnetic trigger mechanism that responds by way electromagnetic to excess circuit current in which the circuit breaker is inserted.
  • This chain is formed a movable core 30 which slides inside an axis of coil 31.
  • the fourth set D is composed of a blade bimetallic 40 which responds thermally to excess current flowing in the circuit in which the circuit breaker is intercalated, thus constituting the system of thermal release.
  • the last kinematic chain E is formed by striker 50 made of a rotating piece of insulating material around the axis 51, which is part of the carcass 1, and a thermal rod 55.
  • the striker has four points main functional: the magnetic opening point 52, the point of rotation of the thermal rod 55; the third functional point is the trigger arm 56 and, finally, the external trigger points 57.
  • the operation of the main current circuit and the various mechanisms that make up the circuit breaker is as follows: the circuit breaker being in the state of establishment (FIG. 1), the current enters the circuit breaker through the input terminal 60, mounted on the carcass 1.
  • Electric current flows through the tab 61, which is welded to one end 62 of the coil electromagnetic 32. From coil 32, current flows to fixed contact CF through contact pad 33. From fixed contact CF, it goes to the mobile contact CM through the point of contact 34. At this point of contact, there may have two types of construction: one in which the fixed contact CF comes into direct contact with the contact mobile CM and another in which this contact is made by via a contact pad 33.
  • the current flows to the bimetal 40 by a braid 45 welded on the movable contact CM to a end and on the bimetal 40 at the other end.
  • the different mechanisms that make up the circuit breaker correspond to five operating modes: closing normal circuit breaker, normal opening of the circuit breaker, opening by thermal release, opening by magnetic release, and short-circuit opening.
  • the normal establishment and cut-off mechanism of the circuit breaker is formed by chains A and B.
  • the normal shutdown mechanism is the same as that of establishment, and it is formed by chains kinematics A and B.
  • the spring 21 causes the rotation of the movable contact CM around the axis 20 by the trigger of the compression established in the body of the spring 21 during the closure.
  • the spring resets the handle 14, making turn the lever M to its cut-off position.
  • the opening by electromagnetic trigger is produced in the presence of an excess of overcurrent in the main current circuit.
  • the electric current Passing through coil 32, the electric current generates a magnetic flux inside the circuit formed fixed contact CF (which acts as a magnetic casing) and the movable core 30.
  • the magnetic flux creates in this nucleus an electromagnetic force which tends to move it forward, sliding inside its guide 31 (spool pin) in the direction of striker 50.
  • the rotation of the striker 50 causes the displacement trigger arm 56, causing the opening of the contacts in the same way as in the opening by thermal release.

Landscapes

  • Breakers (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (4)

  1. Automatischer Ausschalter des Typs mit Einrichtungen, die das normale Schließen und Öffnen des Ausschalters, das Öffnen durch thermische Auslösung, das Öffnen durch magnetische Auslösung und das Öffnen durch Kurzschluß ausführen, wobei die Einrichtung zum normalen Öffnen und Schließen des Ausschalters eine Handhabe (M), eine Rückstellfeder (14) zum Rückstellen der Handhabe (M), ein mit der Handhabe (M) gelenkig verbundenes Kuppelstück (11), eine Vorrichtungsfeder (21) und ein in der Schließstellung an einem festen Schaltstück (CF) in Anlage haltbares bewegliches Schaltstück (CM) aufweist, wobei das bewegliche Schaltstück (CM) aus der Öffnungs- in die Schließstellung durch das genannte Kuppelstück (11) durch Betätigen der genannten Handhabe (M) verstellbar ist und durch die Vorrichtungsfeder (21) zur Öffnungsstellung hin vorgespannt ist,
    dadurch gekennzeichnet, daß
    das freie Endstück (13) des Kuppelstückes (11) einen geraden Abschnitt aufweist, der gegenüber einem anderen geraden Abschnitt des Bügels zum Einhaken der Vorrichtungsfeder (21) am beweglichen Schaltstück (CM) angeordnet ist, wobei die genannten Abschnitte eine Verriegelungsstütze für das freie Endstück (13) des Kuppelstückes (11) an der Abstützstelle (28) der Vorrichtungsfeder (21) am beweglichen Schaltstück (CM) für die Betätigung des beweglichen Schaltstückes (CM) mittels der Handhabe (M) bilden, und daß bei einer Schwenkung der Handhabe (M) in die Schließstellung das genannte freie Endstück (13) des Kuppelstückes (11) das Ende der Feder (21) zurückdrängt, wobei letztere zusammengedrückt wird und eine Berührungsdruckkraft zwischen dem beweglichen Schaltstück (CM) und dem festen Schaltstück (CF) in der Schließstellung erzeugt wird.
  2. Automatischer Ausschalter nach Anspruch 1,
    dadurch gekennzeichnet, daß
    die Handhabe (M) eine flexible Säule (15) aufweist, die eine Federwirkung auf das Kuppelstück (11) ausübt, um dieses in einer Voreinschaltstellung zu halten, wenn sich der genannte Ausschalter in der Ausschaltstellung befindet.
  3. Automatischer Ausschalter nach den Ansprüchen 1 und 2,
    dadurch gekennzeichnet, daß
    die elektromagnetische Öffnungseinrichtung von einem festen Schaltstück (CF) gebildet ist, das auch die Funktionen eines magnetischen Gestells ausübt, wobei das genannte Gestell von offener Konfiguration ist, in der die entsprechende Spule (32) zwischen dem genannten festen Schaltstück (CF) und einem beweglichen Kern (30) angeordnet ist, ohne daß ein fester Kern erforderlich ist.
  4. Automatischer Ausschalter nach den Ansprüchen 1 und 3,
    dadurch gekennzeichnet, daß der bewegliche Kern (30) an ein schwenkbares Prallstück (50) angelegt bleibt, der einen Axialschub ausübt, um den genannten beweglichen Kern (30) ohne Zuhilfenahme einer Feder in seiner Normalstellung zu halten.
EP93400938A 1992-04-13 1993-04-09 Selbstschalter Expired - Lifetime EP0566462B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9200801 1992-04-13
ES09200801A ES2047445B1 (es) 1992-04-13 1992-04-13 Disyuntor automatico.

Publications (2)

Publication Number Publication Date
EP0566462A1 EP0566462A1 (de) 1993-10-20
EP0566462B1 true EP0566462B1 (de) 1998-06-24

Family

ID=8276734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93400938A Expired - Lifetime EP0566462B1 (de) 1992-04-13 1993-04-09 Selbstschalter

Country Status (4)

Country Link
EP (1) EP0566462B1 (de)
AT (1) ATE167754T1 (de)
DE (1) DE69319271T2 (de)
ES (1) ES2047445B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2147158B1 (es) * 1998-12-30 2001-03-01 Power Controls Iberica Sl Perfeccionamientos en los disyuntores automaticos de escape a tierra.
DE10324390A1 (de) * 2003-05-30 2004-12-23 Abb Patent Gmbh Elektrische Auslöseeinrichtung für einen elektrischen Schalter
CN108493070A (zh) * 2018-06-08 2018-09-04 乐清市赛翔电气有限公司 一种用于断路器的电磁脱扣机构及其断路器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2137387B1 (de) * 1971-05-18 1976-05-28 Stopcircuit Sa
DE2132738B1 (de) * 1971-07-01 1972-07-06 Ellenberger & Poensgen Ein- oder mehrpoliger UEberstromschalter mit thermischer und/oder elektromagnetischer Ausloesung
US3783423A (en) * 1973-01-30 1974-01-01 Westinghouse Electric Corp Circuit breaker with improved flux transfer magnetic actuator
DE2504954B2 (de) * 1975-02-06 1976-12-02 Fa. Heinrich Kopp, Inh. Theodor Simoneit, 8756 Kahl Mechanisches sprungwerk, insbesondere fuer kleine hochleistungs-selbstschalter
DD132379B1 (de) * 1976-08-02 1981-04-29 Guenther Kammer Ueberlast-leitungsabschalter in schmalbauweise
ES247088U (es) * 1979-11-13 1980-03-16 Enrique Garrell Alsina Sa Interruptor magnetotermico
US4313098A (en) * 1980-01-16 1982-01-26 Westinghouse Electric Corp. Circuit interrupter trip unit
JPS56162436A (en) * 1980-05-20 1981-12-14 Matsushita Electric Works Ltd Circuit breaker
FR2582857B1 (fr) * 1985-05-29 1989-04-28 Merlin Gerin Disjoncteur unipolaire et neutre a effet shunt
DE3619239A1 (de) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Schnellausloeser fuer leitungsschutzschalter
FR2646015B1 (fr) * 1989-04-18 1991-06-07 Gec Unelec Disjoncteur electrique
FR2648615B1 (fr) * 1989-06-16 1991-09-13 Hager Electro Perfectionnements aux interrupteurs a coupure automatique, notamment aux disjoncteurs et disjoncteurs differentiels

Also Published As

Publication number Publication date
ES2047445B1 (es) 1996-09-01
EP0566462A1 (de) 1993-10-20
DE69319271D1 (de) 1998-07-30
DE69319271T2 (de) 1999-01-07
ATE167754T1 (de) 1998-07-15
ES2047445R (de) 1996-02-01
ES2047445A2 (es) 1994-02-16

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