EP1001444A2 - Déclencheur de surintensité - Google Patents

Déclencheur de surintensité Download PDF

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Publication number
EP1001444A2
EP1001444A2 EP98122193A EP98122193A EP1001444A2 EP 1001444 A2 EP1001444 A2 EP 1001444A2 EP 98122193 A EP98122193 A EP 98122193A EP 98122193 A EP98122193 A EP 98122193A EP 1001444 A2 EP1001444 A2 EP 1001444A2
Authority
EP
European Patent Office
Prior art keywords
core
armature
overcurrent release
snap
support body
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.)
Withdrawn
Application number
EP98122193A
Other languages
German (de)
English (en)
Other versions
EP1001444A3 (fr
Inventor
Peter Dipl.-Ing. Flohr
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.)
Heinrich Kopp GmbH and Co KG
Original Assignee
Heinrich Kopp GmbH and Co KG
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 Heinrich Kopp GmbH and Co KG filed Critical Heinrich Kopp GmbH and Co KG
Publication of EP1001444A2 publication Critical patent/EP1001444A2/fr
Publication of EP1001444A3 publication Critical patent/EP1001444A3/fr
Withdrawn legal-status Critical Current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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • 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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms
    • H01H2071/407—Combined electrothermal and electromagnetic mechanisms the thermal element being heated by the coil of the electromagnetic 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
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • 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
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7463—Adjusting only the electromagnetic mechanism

Definitions

  • the invention relates to an overcurrent release for electrical Protective switching devices, in particular miniature circuit breakers or Motor protection switch, with electromagnetic and thermoelectric Release.
  • the invention is accordingly based on the object of an overcurrent release of the type mentioned at the beginning, that for his critical area between the seven and ten times the nominal current the intrinsic safety with low constructive Effort is guaranteed.
  • the response time is thus advantageous according to the invention the bimetallic disc in the critical range between the seven to twelve times the rated current using the magnet armature so greatly shortened that for the intrinsic safety of the switchgear required thermal protection is guaranteed.
  • the magnetic force of the current-carrying coil is used, to directly over the anchor and a tubular actuator to apply the bimetallic snap disc.
  • the bimetallic disc acts as an anchor restraint spring the anchor mechanically up to the magnetic response value of the Circuit breaker holds.
  • the armature presses over the tubular actuator the bimetallic disc above its snap point, that the plunger unlocks the circuit breaker of the circuit breaker can.
  • the armature presses depending on Amount of current more or less on the bimetallic snap disc with the effect that in the critical area between snapping the seven and ten times the rated current heated disk is accelerated via the support body.
  • the snap time of the snap disk is shortened so that the circuit breaker switches off quickly and thus intrinsically safe.
  • the bimetallic snap disc For the function of the overcurrent release according to the invention on the one hand there is an intimate connection of the bimetallic snap disc with the support body, for example via a elastic o-ring, in order for electrothermal release good heat transfer from the support body to the snap disc guarantee.
  • the distance between anchor and Core armature air gap
  • the bimetallic disc it is also important that the distance between anchor and Core (armature air gap) must not be larger than the snap stroke the bimetallic disc to ensure that, for example at high short-circuit currents the armature the snap disc not mechanically deformed.
  • Tappet actuator is preferably through the bore of the Core guided and preferably designed as a tube, which preferably loosely surrounds the plunger. This results in a extraordinarily compact design of the tappet actuator with optimal power transmission and introduction into the Snap disc.
  • the core is adjustable in position in relation to the armature in the support body attached, which provides an additional adjustment for the armature air gap.
  • the snap disk is preferred in the receiving end of the support body applied to the edge by means of an elastic O-ring attached, the O-ring preferably by means of a lid-shaped cap is pressed against the snap disc, wherein the cap has a central tappet passage opening.
  • the hole in the core is according to a preferred embodiment the invention with a guide portion for the tappet actuator, preferably in the form of a pipe guide section, and a comparatively larger diameter section formed, the core itself preferably close to that Receiving end of the support body is attached to a compact To enable overcurrent release design.
  • the anchor has a recess on the back for receiving a Stop end supporting vibration damping spring.
  • FIG 10 A section through an overcurrent release is shown schematically in FIG 10 shown for protective switching devices, the one Has heat-conductive tubular support body 11, which is wrapped with a coil 12.
  • the support body 11 has a molded stop end 13 and an opposite one extended receiving end 14 for the system and radial Storage of a bimetallic snap disc 15.
  • Anchor 20 arranged, between the core 16 and the stop end 13 of the support body 11 a slidably mounted in the tubular support body 11
  • Anchor 20 arranged, between the core 16 and the armature 20 a distance s is formed as an armature air gap.
  • the armature 20 has a rear recess 21 for receiving one supported at the stop end 13 Vibration damping spring 22.
  • This vibration damping spring 22 has only the function, a disturbing noise of the armature 20 due to the mains frequency, however, does not interfere functionally with the other mode of action of the overcurrent release 10.
  • the receiving end 14 of the support body 11 is by means of a cap 23 closed, which, like the supporting body 11, the core 16 and the armature 20 is rotationally symmetrical.
  • the Cap 23 has a central guide opening 24 for guiding of a plunger 25 which can be disengaged to the left in FIG. 1 rear end of the plunger 25 protrudes through a central opening 31 of the snap disc 15 and by a tubular actuator 26 slidably mounted in the direction of the anchor 20th
  • the tubular actuator 26 is in its outside in the guide groove 18 of the core 16 rotatably supported, lies loosely with its one end on the armature 20 and with its at the other end of the snap disc 15.
  • a thickening 27 on the plunger 25 is arranged according to Figure 1 so that the Bimetallic disc 15 between the thickening 27 and the end of the tubular control member 26 is located.
  • the stop end 13 also has an opening 28 through which the overcurrent release can also be triggered manually by pressing in the armature 20 is.
  • the distance s between the core 16 and the armature 20 is such chosen to be at least half and at most the whole Snap stroke of the snap disk 15 corresponds to one hand to ensure adequate functioning and on the other hand mechanical damage to the snap disk 15 when triggered to avoid by the anchor 20.
  • the snap disk 15 is ready for operation in the receiving section 14 Condition recorded and maintained in such a way that them in lateral contact with the angled support body section 29 pressed by an elastic O-ring 30 is, which in turn is acted upon by the cap 23.
  • Figure 2 shows the overcurrent release 10 by electromagnetic Trip, wherein the armature 20 abuts the core 16 and the snap disc 15 through the tubular actuator 26 was brought into movement in the snap division, in the plunger 25 reaches its disengaged release position.
  • FIG 3 shows the overcurrent release 10 after electrothermal Triggered solely on the basis of the action of the snap disc 15, which when snapping to the thickened portion 27 of the Tappet 25 attacks and this in the disengaged position shown brings.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
EP98122193A 1998-10-13 1998-11-27 Déclencheur de surintensité Withdrawn EP1001444A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19847155A DE19847155A1 (de) 1998-10-13 1998-10-13 Überstromauslöser
DE19847155 1998-10-13

Publications (2)

Publication Number Publication Date
EP1001444A2 true EP1001444A2 (fr) 2000-05-17
EP1001444A3 EP1001444A3 (fr) 2001-04-04

Family

ID=7884316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122193A Withdrawn EP1001444A3 (fr) 1998-10-13 1998-11-27 Déclencheur de surintensité

Country Status (3)

Country Link
US (1) US6154115A (fr)
EP (1) EP1001444A3 (fr)
DE (1) DE19847155A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2999014A1 (fr) * 2012-12-03 2014-06-06 Schneider Electric Ind Sas Actionneur a shunt magnetothermique, en particulier pour le declenchement de disjoncteur
US10283301B2 (en) 2014-11-12 2019-05-07 Schneider Electric Industries Sas Electromagnetic actuator and circuit breaker comprising such an actuator

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2174265C1 (ru) * 2000-12-18 2001-09-27 Открытое акционерное общество "Электроаппарат" Расцепитель максимального тока
DE10324390A1 (de) * 2003-05-30 2004-12-23 Abb Patent Gmbh Elektrische Auslöseeinrichtung für einen elektrischen Schalter
JP5309020B2 (ja) * 2006-06-07 2013-10-09 スリオ 電気部品のバイパス素子
CN101507060B (zh) * 2006-06-30 2011-08-10 莫列斯公司 低轮廓闭锁连接器
US7550939B2 (en) * 2006-07-14 2009-06-23 William Davison Redundant instantaneous trip detection
US7592888B2 (en) * 2006-07-14 2009-09-22 Jason Robert Colsch Low cost user adjustment, resistance to straying between positions, increased resistance to ESD, and consistent feel
US7869170B2 (en) * 2006-07-14 2011-01-11 Susan Jean Walker Colsch Method and system for time synchronized trip algorithms for breaker self protection
US7869169B2 (en) * 2006-07-14 2011-01-11 William Davison Method and system of current transformer output magnitude compensation in a circuit breaker system
US7859802B2 (en) * 2006-07-14 2010-12-28 William Davison Burden resistor temperature compensation algorithm
US8154373B2 (en) * 2006-07-14 2012-04-10 Schneider Electric USA, Inc. Circuit breaker-like apparatus with combination current transformer
US7788055B2 (en) 2006-07-14 2010-08-31 Square D Company Method and system of calibrating sensing components in a circuit breaker system
US7683586B2 (en) * 2006-07-14 2010-03-23 Davison William C Method and system of fault powered supply voltage regulation
US7791849B2 (en) * 2006-07-14 2010-09-07 William Davison Redundant trip activation
US7697250B2 (en) * 2006-07-14 2010-04-13 William Davison Switch-to-trip point translation
DE102014117035A1 (de) * 2014-11-20 2016-05-25 Eaton Industries (Austria) Gmbh Leitungsschutzschalter mit passiv beheiztem und auf einem Eisenrückschluss eines elektromagnetischen Auslösers wirkendem Bimetall-Element
DE102016203508B4 (de) * 2016-03-03 2021-06-10 Siemens Aktiengesellschaft Auslösevorrichtung und elektromechanisches Schutzschaltgerät
SI25460B (sl) * 2017-06-06 2021-11-30 Nela Razvojni Center Za Elektroindustrijo In Elektroniko, D.O.O. Izpopolnjen termično-magnetni prožilnik varnostnega električnega stikala
DE102019112581B4 (de) * 2019-05-14 2020-12-17 Marcel P. HOFSAESS Temperaturabhängiger Schalter

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288770A (en) * 1979-11-28 1981-09-08 General Electric Company Thermal override for static trip circuit breakers
US4288769A (en) * 1979-11-28 1981-09-08 General Electric Company Ambient temperature responsive trip device for static trip circuit breakers
US4641001A (en) * 1984-06-15 1987-02-03 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
JPH0119315Y2 (fr) * 1984-09-19 1989-06-05
DE3637275C1 (en) * 1986-11-03 1988-05-05 Flohr Peter Overcurrent trip device for protection switching apparatuses
FR2639148B1 (fr) * 1988-11-16 1991-08-02 Merlin Gerin Declencheur magnetique a large plage de reglage du seuil de declenchement
NL8900007A (nl) * 1989-01-03 1990-08-01 Holec Syst & Componenten Stuurinrichting voor een elektrische schakelaar, alsmede een met deze stuurinrichting uitgeruste elektrische schakelaar.
FR2661776B1 (fr) * 1990-05-04 1996-05-10 Merlin Gerin Declencheur instantane d'un disjoncteur.
US5107235A (en) * 1991-01-24 1992-04-21 Square D Company Current driven actuator with coupled thermal and magnetic actuating elements
DE4313207A1 (de) * 1993-04-22 1994-10-27 Kopp Heinrich Ag Leitungsschutzschalter
DE4406670C3 (de) * 1994-03-01 1999-09-09 Kopp Heinrich Ag Leitungsschutzschalter
DE29502573U1 (de) * 1995-02-16 1995-04-20 Heinrich Kopp Ag, 63796 Kahl Schaltgerät, insbesondere Leitungsschutzschalter
DE19629062C2 (de) * 1996-07-18 1999-05-06 Kopp Heinrich Ag Überstromauslöser für Schutzschaltgeräte zur selektiven Staffelung in Stromkreisen
DE19750875C1 (de) * 1997-11-18 1999-03-18 Hans Arnhold Überstromauslöser für Schutzschalter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2999014A1 (fr) * 2012-12-03 2014-06-06 Schneider Electric Ind Sas Actionneur a shunt magnetothermique, en particulier pour le declenchement de disjoncteur
WO2014087073A1 (fr) * 2012-12-03 2014-06-12 Schneider Electric Industries Sas Actionneur a shunt magnetothermique, en particulier pour le declenchement de disjoncteur
US9355803B2 (en) 2012-12-03 2016-05-31 Schneider Electric Industries Sas Actuator with thermomagnetic shunt, especially for triggering a circuit breaker
US10283301B2 (en) 2014-11-12 2019-05-07 Schneider Electric Industries Sas Electromagnetic actuator and circuit breaker comprising such an actuator

Also Published As

Publication number Publication date
DE19847155A1 (de) 2000-04-20
US6154115A (en) 2000-11-28
EP1001444A3 (fr) 2001-04-04

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