EP0868736B1 - Systeme de declenchement thermique - Google Patents

Systeme de declenchement thermique Download PDF

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Publication number
EP0868736B1
EP0868736B1 EP96946142A EP96946142A EP0868736B1 EP 0868736 B1 EP0868736 B1 EP 0868736B1 EP 96946142 A EP96946142 A EP 96946142A EP 96946142 A EP96946142 A EP 96946142A EP 0868736 B1 EP0868736 B1 EP 0868736B1
Authority
EP
European Patent Office
Prior art keywords
slide
switching element
switching
differential lever
bearing
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
EP96946142A
Other languages
German (de)
English (en)
Other versions
EP0868736A2 (fr
Inventor
Rainer Lewin
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0868736A2 publication Critical patent/EP0868736A2/fr
Application granted granted Critical
Publication of EP0868736B1 publication Critical patent/EP0868736B1/fr
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
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/223—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with bimetal elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49107—Fuse making

Definitions

  • the invention relates to a method for manufacturing of a thermal release system for an electrical switching device with bimetallic elements, a slide with receptacles, in which the bimetallic elements are included with Switching element for triggering a switching process, with a Differential lever that is attached to the slide and by movement the same in the direction of thrust its distance from the switching element shortened, the attachment of the differential lever via a first and a second bearing on the slide.
  • Such thermal tripping systems are in circuit breakers realized.
  • the switch is not directly, but via the Operated slide, which is adapted to the position of the bimetallic strips is.
  • the differential lever is countered by the slide pressed the switching element and thus triggers the switching process out.
  • the components of the switching device are inevitable Provide tolerances and in their arrangement and effect with each other they form a chain of tolerance. Their effect must be on fully assembled switch can be compensated. For this For this reason, it was customary so far to position the switching element to be adjustable. The adjustment was made using a Fine-thread screw, through which a pivoted Carrier for the shift lever can be moved forward or backward could. This way the distance between the Switching element and the differential lever to a predetermined Value a can be set.
  • a thermal release system for an electrical switchgear of the above type is disclosed in US-A-4,691,184. This contains independent calibration or adjustment elements.
  • the invention has for its object the method for Manufacture of a thermal release system of the above Art to improve in that on previously used adjustment elements can be dispensed with, in order to save costs.
  • the stated object is achieved in that the slide with the first bearing designed as a fulcrum is made that the position of the switching element in electrical switching device is measured that depends on the measured position of the switching element in the second bearing calculates and is executed on the slide, which is then in associated switchgear is installed.
  • the thermal release system 1 generally comprises three bimetal strips 2, each with a not shown here Heating coil are provided, a slide 3, a differential lever 4 and a switching element 5.
  • the slider 3 there are receiving slots 6 incorporated, in which the bimetal strips 2 stuck.
  • the slider 3 is a due to the deflection or several bimetal strips 2 when overload currents occur in the direction of thrust indicated by a double arrow 7 slidable.
  • On the slide 3 is essentially Differential lever 4 aligned transversely to the direction of thrust attached, at its end facing the switching element 5 has a nose 8. This nose 8 has a temperature the bimetal strip 2, i.e.
  • the differential lever 4 is over two Bearing points 9,10 attached to the slide 3.
  • the first depository 9 is a fixed point with respect to the slide 3, a distance y to the switching element 5 in the de-energized state in the direction of thrust. This distance y depends on the Manufacturing tolerances differ from device to device, i.e. a device-specific size.
  • the two bearings 9,10 are preferably on one in essentially straight lines oriented transversely to the direction of thrust located.
  • the slider 3 with only one Made bearing 9, which serves as a fulcrum.
  • the location of the switching element 5 in the trigger system 1 is measured what is triggered very precisely by triggering the switching process.
  • the position for the second bearing 10 is dependent on this calculated and this e.g. made by punching.
  • the slide 3 is mounted in the associated switching device.
  • the second bearing point is a slot 10 executed.

Landscapes

  • Thermally Actuated Switches (AREA)
  • Manufacture Of Switches (AREA)
  • Breakers (AREA)

Claims (1)

  1. Procédé de fabrication d'un système de déclenchement thermique d'un appareil de commutation électrique, comportant des bilames (2), un coulisseau (3) avec des logements (6) dans lesquels sont reçus les bilames (2), un élément (5) de commutation pour déclencher une opération de commutation, et un levier (4) différentiel, qui est fixé sur le coulisseau (3) et, par le déplacement de ce dernier dans la direction de poussée, réduit sa distance (x) de l'élément (5) de commutation, la fixation du levier différentiel s'effectuant au moyen d'un premier (9) et d'un deuxième (10) point d'appui sur le coulisseau (3),
    caractérisé en ce qu'on fabrique le coulisseau (3) avec le premier (9) point d'appui conçu comme centre de rotation, en ce qu'on mesure la position de l'élément (5) de commutation dans l'appareil de commutation électrique, en ce qu'on calcule le deuxième (10) point d'appui en fonction de la position mesurée de l'élément (5) de commutation et on le réalise sur le coulisseau (3), qui est ensuite montée dans l'appareil de commutation correspondant.
EP96946142A 1995-12-22 1996-12-09 Systeme de declenchement thermique Expired - Lifetime EP0868736B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19548479 1995-12-22
DE19548479A DE19548479C2 (de) 1995-12-22 1995-12-22 Thermisches Auslösesystem
PCT/DE1996/002356 WO1997023887A2 (fr) 1995-12-22 1996-12-09 Systeme de declenchement thermique

Publications (2)

Publication Number Publication Date
EP0868736A2 EP0868736A2 (fr) 1998-10-07
EP0868736B1 true EP0868736B1 (fr) 1999-08-25

Family

ID=7781241

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96946142A Expired - Lifetime EP0868736B1 (fr) 1995-12-22 1996-12-09 Systeme de declenchement thermique

Country Status (5)

Country Link
US (1) US6014803A (fr)
EP (1) EP0868736B1 (fr)
JP (1) JP2000506665A (fr)
DE (2) DE19548479C2 (fr)
WO (1) WO1997023887A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10104901A1 (de) * 2001-02-03 2002-08-08 Abb Patent Gmbh Verfahren zum Justieren des thermischen Auslösesystems eines elektrischen Schaltgerätes, insbesondere eines Motorschutzschalters
DE102008062527B4 (de) * 2008-12-16 2022-08-11 Abb Schweiz Ag Mehrphasiges elektrisches Schaltgerät mit einem Auslöseschieber sowie ein Auslöseschieber

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3149811A1 (de) * 1981-12-16 1983-07-21 Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn Mehrphasiger thermisch verzoegerter motorschutzschalter
DE3401901A1 (de) * 1984-01-20 1985-08-01 Brown, Boveri & Cie Ag, 6800 Mannheim Thermisches ueberstromrelais mit justierexzenter
DE3415226A1 (de) * 1984-04-21 1985-10-31 Brown, Boveri & Cie Ag, 6800 Mannheim Thermisches ueberstromrelais mit justierbuegel
DE3435228A1 (de) * 1984-09-26 1986-04-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Bimetallausloeser
US4806897A (en) * 1987-12-17 1989-02-21 Eaton Corporation Overload relay having adaptive differential mechanism
FR2667979B1 (fr) * 1990-10-11 1994-04-01 Telemecanique Declencheur thermique differentiel a bilames.

Also Published As

Publication number Publication date
DE19548479C2 (de) 1999-09-02
DE59602913D1 (de) 1999-09-30
JP2000506665A (ja) 2000-05-30
EP0868736A2 (fr) 1998-10-07
US6014803A (en) 2000-01-18
WO1997023887A2 (fr) 1997-07-03
WO1997023887A3 (fr) 1997-09-12
DE19548479A1 (de) 1997-06-26

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