EP0447417B1 - Mehrpoliger schalter mit auslösemodul - Google Patents

Mehrpoliger schalter mit auslösemodul Download PDF

Info

Publication number
EP0447417B1
EP0447417B1 EP89913070A EP89913070A EP0447417B1 EP 0447417 B1 EP0447417 B1 EP 0447417B1 EP 89913070 A EP89913070 A EP 89913070A EP 89913070 A EP89913070 A EP 89913070A EP 0447417 B1 EP0447417 B1 EP 0447417B1
Authority
EP
European Patent Office
Prior art keywords
switch
tripping
section
module
bar member
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
EP89913070A
Other languages
English (en)
French (fr)
Other versions
EP0447417A1 (de
Inventor
Lajos K.D. Marot
Egon Engelbrecht Borgesen
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.)
Danfoss Power Solutions II BV
Original Assignee
Holec Systemen en Componenten BV
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 Holec Systemen en Componenten BV filed Critical Holec Systemen en Componenten BV
Publication of EP0447417A1 publication Critical patent/EP0447417A1/de
Application granted granted Critical
Publication of EP0447417B1 publication Critical patent/EP0447417B1/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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts

Definitions

  • the invention relates to a multi-pole, power switch comprising a plurality of switch sections, i.e. one switch section per pole, wherein each switch section comprises a set of fixed and a set of movable contacts, and a section for mechanical operation which causes a longitudinal displacement of a bar member along its own longitudinal axis, said bar member extending through all the sections, the movable contacts in each section being secured to said bar member, said bar arranged so that the movable contacts are displaced towards and away from surfaces of the fixed contacts for the IN and OUT movement respectively, and wherein the section for mechanical operation comprises a toggle mechanism with a toggle spring ensuring both a quick make and a quick break of the circuit irrespective of the manual operation when the dead point of said toggle mechanism has been passed, wherein the toggle mechanism engages a shaft tube which is rotatable by means of a square shaft with a handle, and wherein a toggle joint pivot of said toggle mechanism engages said bar member, and wherein means are provided for tripping the switch, said tripping means
  • Heavy current switches of the above type are inter alia known from the applicant's EP-A-0.188.258 and 0.179.482, the latter of which forms the basis for the preamble of claim 1, disclosing a heavy current, low voltage switch constructed to quick make and quick break of currents in the order of 125-1600 Amps, and from FR-A-2,516,699 showing a heavy current switch of similar kind.
  • a switch of the type mentioned in the preamble is provided, said switch being characterised in that the section for mechanical operation comprises an opening or recess able to receive a tripping module, and that a tripping module is provided, being receivable in said opening and comprising the entire trip mechanism, and in that the shaft tube extends through the tripping module and is adapted to engage said tripping module.
  • the tripping module can be inserted over the shaft tube, said shaft tube extending from the mechanical section and protruding through an opening provided for this purpose in the tripping module. In this manner it is easy to insert a tripping module into a switch without such a tripping module.
  • the modular structure allows a delivery of switches with or without the tripping module according to the need of the customers.
  • the modular structure presents great advantages with respect to storage and production because the same switch type can be used irrespective of whether the switch is to be delivered with or without the tripping module.
  • the switch is preferably characterised in that the spring means for the storage of mechanical energy for effectuation the tripping proces can be compressed by a manual rotation of the handle shaft (46). In this manner the tripping module can be actuated during the "switching on” or closing of the switch in such a manner that the energy storing spring of the tripping module is compressed and consequently ensures a storing of energy which is sufficient for forcibly turn the switch off or "open" the switch, if necessary.
  • the switch is preferably of the type wherein the toggle joint is displaced along a circular arc during the switching-on or -off movement of the switch, and where a toggle joint pivot is extended into engagement with the bar member.
  • means are provided for disengaging the toggle joint pivot and the bar member during a disconnection (switching off) of the switch caused by the tripping module.
  • the tripping module is included in a switch housing composed of two substantially identical halves, which presents great advantages with respect to production and storage.
  • the actuation (operation) section of the switch housing is according to the invention preferably such that the mechanical actuation (operation) mechanism is included in an actuating (operation) module, which apart from the protruding shaft tube is of substantially the same dimensions as the tripping module and is mounted by inserting said actuating (operation) module into the bottom portion of the switch housing through the opening.
  • the tripping module is preferably situated between two switch sections, which implies that the bar displacing force is applied close to the centre of the bar member, said centre being the most rational point of application because the ideal point of application of a translatory force actuation on a body is the centre of gravity of said body.
  • the switch of Figs. 1 to 5 comprises a switch housing with a bottom portion 10 and a top portion 20, said portions preferably being identical.
  • the switch further comprises a bar member 30 which in the embodiment shown is formed as an almost rectangular plate with openings receiving the movable contacts 36, which only appear from Fig. 4, as well as a shaft tube 42, a square shaft 46 displaceable inside the shaft tube 42 into a suitable position in which it is locked, and a handle 48.
  • the switch housing is divided into a switch section 21, an actuation (operation) section 22, a switch section 23, and the switch section 24 when seen from the left to the right of the drawing.
  • Fig. 3 illustrates the switch chambers 31, 33, and 34 with their respective set of fixed contacts 41, 43, 44 and extinguishing metal plates 51, 53, 54.
  • An actuating mechanism 40 with a shaft tube 42 constitutes the mechanical actuation (operation) 22 allowing by means of the square shaft 46 (Fig 2) with the handle 48 a control of the position of the bar plate 30 and consequently of the movable contacts 36 in such a manner that the switch can be connected and disconnected (switched on and off) according to desire.
  • the shaft tube is preferably a hollow, square tube and/or of a U-shaped profile of a cross section forming three of the sides of a square.
  • the actuating mechanism 40 is built in a manner known per se as a toggle mechanism with a spring-loaded toggle joint.
  • Fig. 3 only illustrates the extended toggle joint pivot 52 adapted to engage the bar plate 30 mounted thereabove.
  • Fig. 4 illustrates the same bottom portion 10 with the bar plate 30 and roller contacts 36.
  • An oblong hole 32 is provided for the shaft tube 42 in such a manner that the bar plate 30 with the roller contacts 36 can reciprocate during the disconnection (switching off) and the connection (switching on).
  • a stop 37 projects from the bar plate 30 and into the tripping module 50 so as thereby to be actuated by the disconnecting means of the tripping module.
  • These disconnecting means can be shaped in many ways.
  • Fig. 5 illustrates the tripping module 50 included in the actuation (operation) section 22 of the top portion 20.
  • Fig. 5 shows in addition that in principle all the switch chambers 31, 33, 34 can be identical both in the top portion and in the bottom portion.
  • the device 60 shown in Figs. 1 and 2 may be an excess current relay transmitting a signal current to the tripping module 50 in case of an excess current.
  • the switch operates in the following manner. Usual connection is established by turning the handle 48 and consequently the shaft tube 42, whereby the toggle mechanism is compressed. The rotation of the shaft tube is transferred through the toggle joint pivot 52 of the toggle mechanism to a translatory displacement of the bar plate 30 and the roller contacts 36 mounted thereon. During the connecting movement and preferably during the last portion of said movement the rotation of the shaft tube is utilized for compressing the energy storing spring of the tripping module. The latter procedure is possible because the shaft tube extends through the tripping module so as therein to engage means compressing the spring. As a result, the tripping module is always compressed and consequently capable of disconnecting the switch as soon as said switch is connected.
  • a manual disconnection is carried out by turning the handle 48 and consequently the shaft tube 42 in the opposite direction compared to previously, whereby the toggle mechanism is compressed like previously and forces - when a dead point of the toggle mechanism has been passed - the bar plate back into the disconnected position.
  • a disconnection caused by an excess current is actuated by the tripping module according to the following procedure.
  • a relay 60 transmits a signal to the tripping module 50.
  • the signal actuates activating means in the tripping module so as to activate release means, which in turn release the energy storing spring.
  • release means which in turn release the energy storing spring.
  • the toggle joint pivot engages the bar plate in such a manner that by means of a spring-loaded ratchet or inclined chamfered surface the bar plate can pass freely back to its disconnected position, i.e. not engaging the toggle joint pivot 52.

Landscapes

  • Breakers (AREA)
  • Keying Circuit Devices (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Road Signs Or Road Markings (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (6)

  1. Mehrpoliger Leistungsschalter mit mehreren Schaltersektionen (21, 23, 24), d. h. mit einer Schaltersektion pro Pol, wobei jede Schaltersektion einen Satz feste (41, 43, 44) und einen Satz bewegliche Kontakte (36) aufweist, und mit einer Sektion für mechanische Betätigung, die eine Längsverschiebung eines Stabelements (30) entlang seiner eigenen Längsachse bewirkt, wobei das Stabelement (30) sich durch alle Sektionen (21, 23, 24) erstreckt, wobei die beweglichen Kontakte (36) in jeder Sektion an dem Stabelement (30) befestigt sind, wobei das Stabelement so angeordnet ist, daß die beweglichen Kontakte (36) für die EIN- bzw. AUS-Bewegung zu den Oberflächen der festen Kontakte (41, 43, 44) hin bzw. von diesen weg verschoben werden, und wobei die Sektion (22) für die mechanische Betätigung einen Kipphebelmechanismus mit einer Kipphebelfeder aufweist, die nach Passieren des Totpunktes des Kipphebelmechanismus ein schnelles Einschalten und ein schnelles Ausschalten eines Stroms unabhängig von der manuellen Betätigung sicherstellt, wobei der Kipphebelmechanismus mit einem Wellenrohr (42) im Eingriff ist, das mittels einer Vierkantwelle (46) durch einen Handgriff (48) drehbar ist, und wobei ein Kipphebelgelenkzapfen (52) des Kipphebelmechanismus mit dem Stabelement (30) im Eingriff ist, und wobei Einrichtungen zum Auslösen des Schalters vorgesehen sind, wobei die Auslöseeinrichtungen einen Auslösemechanismus zum Trennen der Kontakte (41, 43, 44, 36) in jeder Schaltersektion bei Überstrom, mit einer Federeinrichtung zum Speichern von Energie, die bei dem Auslösevorgang freigesetzt wird, sowie weitere Auslöseeinrichtungen aufweisen, die so angeordnet sind, daß sie durch ein Signal über ein Gatter aktiviert werden,
       dadurch gekennzeichnet, daß die Sektion (22) für mechanische Betätigung eine Öffnung (12) aufweist, die einen Auslösebaustein (50) aufnehmen kann, daß ein Auslösebaustein (50) vorgesehen ist, der in der Öffnung (12) untergebracht werden kann und den gesamten Auslösemechanismus einschließt, und daß das Wellenrohr (42) sich durch den Auslösebaustein (50) erstreckt und so eingerichtet ist, daß es mit dem Auslösebaustein (50) in Eingriff kommt.
  2. Mehrpoliger Schalter nach Anspruch 1, dadurch gekennzeichnet, daß die Federeinrichtung zum Speichern von mechanischer Energie für die Ausführung des Auslöseprozesses durch eine manuelle Drehung der Welle (46) mit dem Handgriff zusammengedrückt werden kann.
  3. Mehrpoliger Schalter nach Anspruch 1 oder 2, wobei das Kipphebelgelenk während der Umschaltbewegung des Schalters längs eines Kreisbogens verschoben wird, dadurch gekennzeichnet, daß Einrichtungen vorgesehen sind, um den Kipphebelgelenkzapfen (52) und das Stabelement (30) während einer durch den Auslösebaustein (50) bewirkten Öffnung des Schalters voneinander zu lösen.
  4. Mehrpoliger Schalter nach Anspruch 1, 2 und/oder 3, dadurch gekennzeichnet, daß sich der Schalter mit dem Auslösebaustein (50) aus zwei im wesentlichen identischen Hälften (10, 20) zusammensetzt.
  5. Mehrpoliger Schalter nach Anspruch 4, dadurch gekennzeichnet, daß die Betätigungssektion (22) des Schalters so beschaffen ist, daß die mechanische Betätigungseinrichtung in einem Betätigungsbaustein (40) enthalten ist, der bis auf das vorstehende Wellenrohr (42) im wesentlichen die gleichen Abmessungen aufweist wie der Auslösebaustein (50) und durch Einsetzen des Betätigungsbausteins (40) durch die Öffnung (12) in den Bodenabschnitt des Schalters montiert wird.
  6. Mehrpoliger Schalter nach irgendeinem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Sektion (22) für mechanische Betätigung mit dem Auslösebaustein (50) zwischen zwei Schaltersektionen (21, 23) angeordnet ist.
EP89913070A 1988-11-10 1989-10-27 Mehrpoliger schalter mit auslösemodul Expired - Lifetime EP0447417B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK6285/88 1988-11-10
DK628588A DK165611C (da) 1988-11-10 1988-11-10 Flerpolet staerkstroemsafbryder med tripmodul
PCT/DK1989/000253 WO1990005375A1 (en) 1988-11-10 1989-10-27 A multi-pole switch comprising a tripping module

Publications (2)

Publication Number Publication Date
EP0447417A1 EP0447417A1 (de) 1991-09-25
EP0447417B1 true EP0447417B1 (de) 1994-07-13

Family

ID=8148494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89913070A Expired - Lifetime EP0447417B1 (de) 1988-11-10 1989-10-27 Mehrpoliger schalter mit auslösemodul

Country Status (9)

Country Link
EP (1) EP0447417B1 (de)
AT (1) ATE108574T1 (de)
AU (1) AU4637889A (de)
DE (1) DE68916810T2 (de)
DK (1) DK165611C (de)
ES (1) ES2019177A6 (de)
GR (1) GR1001283B (de)
PT (1) PT92243B (de)
WO (1) WO1990005375A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI121155B (fi) 2008-06-19 2010-07-30 Abb Oy Ohjainyksikkö kytkinlaitetta varten
FI121154B (fi) 2008-06-19 2010-07-30 Abb Oy Ohjainyksikkö kytkinlaitetta varten
FI121153B (fi) 2008-06-19 2010-07-30 Abb Oy Laukaisinkokoonpano kytkinlaitetta varten

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179482A2 (de) * 1984-10-25 1986-04-30 Aktieselskabet Laur. Knudsen Nordisk Elektricitets Selskab Elektrischer Schalter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1022298B (de) * 1956-09-07 1958-01-09 Siemens Ag Aus Baugruppen zusammensetzbarer Selbstschalter
IT8121367U1 (it) * 1981-04-02 1982-10-02 Sace S P A Costr Elettromeccaniche Interruttore elettrico
IT8123567U1 (it) * 1981-11-19 1983-05-19 Technoelectric S R L Struttura per interruttore di manovra-sezionatore compatta, a contatti visibili e a comando manuale agente direttamente su una slitta porta-contatti mobili.
FR2517114A1 (fr) * 1981-11-26 1983-05-27 Alsthom Cgee Commutateur electrique a commande rotative rappele automatiquement en l'absence de tension

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179482A2 (de) * 1984-10-25 1986-04-30 Aktieselskabet Laur. Knudsen Nordisk Elektricitets Selskab Elektrischer Schalter

Also Published As

Publication number Publication date
DK165611B (da) 1992-12-21
PT92243B (pt) 1995-09-12
DE68916810T2 (de) 1994-10-27
ATE108574T1 (de) 1994-07-15
GR890100738A (en) 1990-12-31
GR1001283B (el) 1993-07-30
DK165611C (da) 1993-05-03
PT92243A (pt) 1990-05-31
DE68916810D1 (de) 1994-08-18
DK628588A (da) 1990-05-11
DK628588D0 (da) 1988-11-10
WO1990005375A1 (en) 1990-05-17
AU4637889A (en) 1990-05-28
EP0447417A1 (de) 1991-09-25
ES2019177A6 (es) 1991-06-01

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