EP0035083A1 - Interrupteur de protection à dispositif de déclenchement manuel - Google Patents

Interrupteur de protection à dispositif de déclenchement manuel Download PDF

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Publication number
EP0035083A1
EP0035083A1 EP80730052A EP80730052A EP0035083A1 EP 0035083 A1 EP0035083 A1 EP 0035083A1 EP 80730052 A EP80730052 A EP 80730052A EP 80730052 A EP80730052 A EP 80730052A EP 0035083 A1 EP0035083 A1 EP 0035083A1
Authority
EP
European Patent Office
Prior art keywords
plunger
circuit breaker
guided
trigger
breaker according
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
EP80730052A
Other languages
German (de)
English (en)
Other versions
EP0035083B1 (fr
Inventor
Bernhard Preuss
Reinhard Zeuke
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Priority to AT80730052T priority Critical patent/ATE3226T1/de
Publication of EP0035083A1 publication Critical patent/EP0035083A1/fr
Application granted granted Critical
Publication of EP0035083B1 publication Critical patent/EP0035083B1/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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/126—Automatic release mechanisms with or without manual release actuated by dismounting of circuit breaker or removal of part of circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • 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
    • H01H71/128—Manual release or trip mechanisms, e.g. for test purposes

Definitions

  • the invention relates to an electrical circuit breaker with movable contact pieces, an insulating housing consisting of an upper part and a lower part, a trigger for automatic shutdown by releasing the latching of the movable contact pieces and an attached to the upper part of the insulating material housing, movable against the action of an energy accumulator by hand, with the Trigger cooperating trigger organ.
  • a circuit breaker with these features has become known, for example, from US Pat. No. 3,895,205.
  • the trigger element which can be operated by hand, is used to test the circuit breaker without having to remove it from its installation location.
  • the invention has for its object to provide circuit breakers with a device that triggers the circuit breaker when lifting from its mounting surface, and to include an existing manual release member in this device.
  • a plunger ending on the underside of the lower part, which is used to fasten the circuit breaker, can advantageously serve as the abutment of the further energy accumulator opposite the trigger element. The plunger ensures the inevitable actuation of the device.
  • the trigger element can be designed as a plunger which is mounted in a linearly displaceable manner in the upper part of the insulating material housing and which is connected in a longitudinally displaceable manner to the plunger guided in the lower part of the housing. Both plungers can then be attached to the lower part of the housing with the associated energy stores. When the upper part is put on, the upper plunger comes into its guide located in the upper part.
  • a further embodiment of the invention can ensure that the device can be used equally for manual triggering or manual triggering and additional automatic triggering when the circuit breaker is lifted from its mounting surface.
  • the plunger guided in the lower part of the housing can be provided with a widened foot part, and on the underside of the lower part a recess can be arranged for receiving the foot part and a locking member which blocks the plunger and can be attached if necessary.
  • the locking member for. B. a spring washer, inserted into the recess, the plunger guided in the lower part can not move and then serves as a fixed abutment of one end of the stronger energy accumulator.
  • the plunger guided in the lower part has the option of stepping out of the mounting surface under the effect of the stronger force accumulator on the underside of the switch when the circuit breaker is lifted, whereby the stronger force storage spring relaxes.
  • the force storage spring acting on the plunger guided in the upper part is then able to overcome the reduced spring force of the stronger force storage spring and to trigger the circuit breaker.
  • Fig. 1 shows a low-voltage circuit breaker with insulating housing and rocker arm drive in the region of the central pole track in section.
  • the same circuit breaker is shown in plan view in FIG. 2.
  • a device according to the invention is shown as section III-III in Fig. 2 in Fig. 3.
  • a detail of the device is shown enlarged in FIG. 4.
  • the circuit breaker 1 shown in FIG. 1 comprises a housing 2 consisting of an insulating material, which has an upper part 3 and a lower part 4. From an opening 5 of the upper part 3, a rocker arm 6 protrudes as an operating handle.
  • the current path of the circuit breaker 1 extends from a lower connection device 7 through a trigger designated as a whole as 10 and from there through a flexible current band 11 to a movable contact arm 12 shown in the off position. If the circuit breaker is switched on, the current path extends further from the contact arm 12 to an upper connection device 13.
  • the contact arm 12 is spring-mounted on a carrier 14 which is fastened on a switching shaft 15.
  • a lever of a toggle lever system 16, on the knee joint 17 of which a tension spring 20 engages, is connected in an articulated manner to the carrier 14.
  • the other end of the tension spring 20 is adjustable by the rocker arm 6 in such a way that the toggle lever system 16 can be brought into the extended position from the buckled position shown, as a result of which the contact arm 12 is transferred into the closed position.
  • the trigger 10 comprises a thermal and an electromagnetic overcurrent release in a known manner. Both act on a release shaft 21, when it is rotated from the rest position shown, an intermediate pawl 22 and a main pawl 23 supported thereon be released. As a result, the support of the toggle lever system 16 is released, so that the contact arm 12 reaches the switch-off position shown even when the toggle levers are extended.
  • the circuit breaker 1 shown has a three-pole design, three identical current paths being arranged parallel to one another in chambers of the insulating material housing 2.
  • the switching shaft 15 connects the carrier 14 of the three poles.
  • the drive and release mechanism described is only provided in the middle pole track.
  • the trigger shaft 21 extends over all poles and can be influenced by the triggers of each pole.
  • a first energy accumulator is formed by a helical compression spring 31 which surrounds the plunger 30 and is supported at one end on the shoulder 27 and at the other end on a shoulder 32 of a recess 33 which receives the plunger 30.
  • a cross pin 34 serves as an abutment of the helical compression spring 31 as long as the plunger 30 is outside the circuit breaker 1.
  • a further tappet 36 is guided in a recess 35 of the lower part 4, which tapers at its end facing the upper tappet 30 and is provided with a mushroom-shaped pin 37 which is undercut with a sharp edge.
  • the parts of the pin 37 are in a recess 40 in the upper plunger 30 in the position of use.
  • a separation of the two plungers is then only possible by partially destroying the material, ie the connection is so resistant that the two plungers are held together after a single assembly. They are then connected in a longitudinally displaceable manner in accordance with the length of the recess 40. (Fig. 4)
  • Another helical compression spring 42 is inserted between a shoulder 41 of the plunger 36 and the end face of the plunger 30. It forms the stronger energy accumulator, while the helical compression spring 31 forms the weaker energy accumulator, which prestresses the plunger 30 in the sense of actuating the trigger shaft 21.
  • the plunger 36 is provided with a foot part 43 which, in the rest position of the plunger 36 shown in FIG. 3, is received in a recess 44 on the underside of the lower part 4.
  • a spring ring 45 serving as a locking member is also inserted into the recess 44 and secures the tappet 36 against any displacement.
  • the device described works in the following way: starting from the position of the parts shown in Fig. 3, the plunger 30 with its upper pin 46, which is flush with the surface of the upper part 3, by using an auxiliary tool, for. B. a pen or screwdriver. Overcoming the Due to the force of the helical spring 42, the shoulder 27 comes to rest on the extension 25 of the release shaft 21 and rotates it in the sense of releasing the intermediate pawl 22, as has already been explained.
  • the selected flush starting position of the pin 46 with the upper part 3 has the advantage that a random undesired triggering of the circuit breaker 1 is excluded. Furthermore, the end face of the pin 46 is chosen so small that actuation without an auxiliary tool is out of the question.
  • the described device additionally triggers an automatic triggering of the circuit breaker 1 when the circuit breaker is used in a pluggable version in a switchgear and is pulled out of its isolating contacts, then only the blocking member 45 needs to be removed from the recess 44 of the lower part 4 to become.
  • the plunger 36 then comes out of the recess 44 with its foot part 43 under the action of the spring 42, the spring 42 relaxing.
  • the spring 31 is then able to overcome the reduced spring force of the spring 42 and thereby triggers the circuit breaker 1. In this way it is initially ruled out that the circuit breaker is brought into contact with its live mating contacts in the switchgear assembly and thereby endangers the Operating personnel can be caused.
  • the circuit breaker can only be switched on when it is fully inserted and thus rests with its underside on the mounting surface, as a result of which the plunger 36 is brought into a flush position with the underside of the lower part 4 with its base part 43.
  • the spring 42 is then so strongly tensioned that it overcomes the force of the spring 31 acting in the sense of release and in turn results in the position of the parts shown in FIG. 3.
  • the upper plunger 30 and the lower plunger 36 can each be produced in one piece from a plastic in the pressing or injection molding process. It is therefore inexpensive to provide parts, so that the combined device for manual triggering and additional inevitable triggering of pull-out switches can be used if necessary without significant increase in the cost of the switch.

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  • Breakers (AREA)
EP80730052A 1980-02-29 1980-07-29 Interrupteur de protection à dispositif de déclenchement manuel Expired EP0035083B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80730052T ATE3226T1 (de) 1980-02-29 1980-07-29 Schutzschalter mit einem von hand bewegbaren ausloeseorgan.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3008249A DE3008249C2 (de) 1980-02-29 1980-02-29 Schutzschalter mit einem von Hand bewegbaren Auslöseorgan
DE3008249 1980-02-29

Publications (2)

Publication Number Publication Date
EP0035083A1 true EP0035083A1 (fr) 1981-09-09
EP0035083B1 EP0035083B1 (fr) 1983-05-04

Family

ID=6096227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80730052A Expired EP0035083B1 (fr) 1980-02-29 1980-07-29 Interrupteur de protection à dispositif de déclenchement manuel

Country Status (4)

Country Link
EP (1) EP0035083B1 (fr)
JP (1) JPS56136428A (fr)
AT (1) ATE3226T1 (fr)
DE (1) DE3008249C2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0227586A1 (fr) * 1985-12-20 1987-07-01 Siemens Aktiengesellschaft Installation de commutation électrique avec un compartiment-tiroir pouvant contenir un dispositif de commutation
EP0354048A2 (fr) * 1988-08-03 1990-02-07 Eaton Corporation Verrrouillage d'un arbre de déclenchement d'un disjoncteur
EP0411871A2 (fr) * 1989-08-04 1991-02-06 Eaton Corporation Projet pour dispositif de déclenchement avec interverrouillage
EP0419276A2 (fr) * 1989-09-22 1991-03-27 Eaton Corporation Disjoncteur ajustable avec interverrouillage de débrochage
US5719363A (en) * 1995-04-08 1998-02-17 Klockner-Moeller Gmbh Mechanical switching device such as a circuit breaker and a safety device for the circuit breaker
EP2254137A1 (fr) * 2009-05-21 2010-11-24 LS Industrial Systems Co., Ltd Appareil de verrouillage de type sortie pour disjoncteur

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037355C2 (de) * 1980-09-30 1982-11-04 Siemens AG, 1000 Berlin und 8000 München Schutzschalter kompakter Bauart mit einem Auslösestift
DE3526336A1 (de) * 1985-07-23 1987-01-29 Weber Ag Fab Elektro Zweipoliger schutzschalter mit mechanischem sicherheitsausloeser
DE8905506U1 (de) * 1989-05-02 1990-09-06 Siemens AG, 1000 Berlin und 8000 München Handbetätigbarer Schutzschalter
JP3399126B2 (ja) * 1994-12-28 2003-04-21 三菱電機株式会社 回路遮断器
EP1148530A1 (fr) * 1999-10-07 2001-10-24 Mitsubishi Denki Kabushiki Kaisha Disjoncteur enfichable
DE102004001939A1 (de) * 2004-01-14 2005-08-04 Abb Patent Gmbh Elektrisches Schaltgerät

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2719052A1 (de) * 1976-04-28 1977-11-10 Gould Inc Mehrpoliger schalter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE492979C (de) * 1930-03-11 Godehard Wilichowski Sicherungseinrichtung gegen unbefugtes Abnehmen eines Messinstrumentes
DE877022C (de) * 1944-11-08 1953-05-18 Stotz Kontakt Gmbh Installations-Selbstschalter
DE1099623B (de) * 1958-08-14 1961-02-16 Felten & Guilleaume Carlswerk Schaltschloss fuer elektrische Schutzschalter
US3110788A (en) * 1959-11-17 1963-11-12 Signal Stat Corp Automatic re-set thermostatic circuit breaker
US3590180A (en) * 1970-02-06 1971-06-29 Square D Co Manually operated toggle-acting switch having a means for preventing assembly of the switch with the contacts of the switch in a circuit-closing condition
US3895205A (en) * 1974-05-20 1975-07-15 Square D Co Push-to-trip button structure for a molded case circuit breaker
US4152683A (en) * 1977-07-20 1979-05-01 Gould Inc. Test means for circuit breaker automatic trip mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2719052A1 (de) * 1976-04-28 1977-11-10 Gould Inc Mehrpoliger schalter

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0227586A1 (fr) * 1985-12-20 1987-07-01 Siemens Aktiengesellschaft Installation de commutation électrique avec un compartiment-tiroir pouvant contenir un dispositif de commutation
EP0354048A2 (fr) * 1988-08-03 1990-02-07 Eaton Corporation Verrrouillage d'un arbre de déclenchement d'un disjoncteur
EP0354048A3 (fr) * 1988-08-03 1991-02-27 Eaton Corporation Verrrouillage d'un arbre de déclenchement d'un disjoncteur
EP0411871A2 (fr) * 1989-08-04 1991-02-06 Eaton Corporation Projet pour dispositif de déclenchement avec interverrouillage
EP0411871A3 (en) * 1989-08-04 1992-04-08 Westinghouse Electric Corporation Trip interlock design
AU638036B2 (en) * 1989-08-04 1993-06-17 Westinghouse Electric Corporation Trip interlock design
EP0419276A2 (fr) * 1989-09-22 1991-03-27 Eaton Corporation Disjoncteur ajustable avec interverrouillage de débrochage
EP0419276A3 (en) * 1989-09-22 1992-03-25 Westinghouse Electric Corporation Adjustable circuit breaker with draw out interlock
US5719363A (en) * 1995-04-08 1998-02-17 Klockner-Moeller Gmbh Mechanical switching device such as a circuit breaker and a safety device for the circuit breaker
EP2254137A1 (fr) * 2009-05-21 2010-11-24 LS Industrial Systems Co., Ltd Appareil de verrouillage de type sortie pour disjoncteur
US8173916B2 (en) 2009-05-21 2012-05-08 Ls Industrial Systems Co., Ltd. Move-out type interlock apparatus for circuit breaker

Also Published As

Publication number Publication date
ATE3226T1 (de) 1983-05-15
DE3008249A1 (de) 1981-09-10
EP0035083B1 (fr) 1983-05-04
JPS56136428A (en) 1981-10-24
DE3008249C2 (de) 1984-04-12

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