EP1036399B1 - Magnetsystem - Google Patents

Magnetsystem Download PDF

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Publication number
EP1036399B1
EP1036399B1 EP99945973A EP99945973A EP1036399B1 EP 1036399 B1 EP1036399 B1 EP 1036399B1 EP 99945973 A EP99945973 A EP 99945973A EP 99945973 A EP99945973 A EP 99945973A EP 1036399 B1 EP1036399 B1 EP 1036399B1
Authority
EP
European Patent Office
Prior art keywords
sleeve
armature
spring
insert
supporting 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.)
Expired - Lifetime
Application number
EP99945973A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1036399A1 (de
Inventor
Olaf Gensch
Jens Oppel
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.)
AEG Niederspannungstechnik GmbH and Co KG
Original Assignee
AEG Niederspannungstechnik 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 AEG Niederspannungstechnik GmbH and Co KG filed Critical AEG Niederspannungstechnik GmbH and Co KG
Publication of EP1036399A1 publication Critical patent/EP1036399A1/de
Application granted granted Critical
Publication of EP1036399B1 publication Critical patent/EP1036399B1/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
    • H01H71/12—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
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element
    • 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

Definitions

  • the invention relates to a magnet system for circuit breaker according to the preamble of claim 1 and to a method for producing such a magnet system.
  • Circuit breakers are used in electrical engineering to protect circuits against overload, e.g. by shorts or the like, are used to automatically disconnect a line, i. they trigger when such overload occurs.
  • a magnet system is used to trip the circuit breaker.
  • the magnet system has a movable armature, which in the rest position partially protrudes into a coil through which current flows in the current to be monitored. If the current in the coil is greater than a predetermined tripping current, the armature is displaced by the resulting magnetic field of the coil and triggers the circuit breaker via a plunger.
  • the trigger member ie armature and plunger must be held by a spring in a defined rest position to ensure a defined response of the circuit breaker and to avoid false triggering.
  • the magnet system must contain a plurality of different mechanical parts to ensure this reliability. To assemble this plurality of mechanical parts is time consuming and consequently expensive.
  • the miniature circuit breakers are manufactured in large numbers, since almost all circuits in houses, factories and the like. Meanwhile, must be secured by such switches.
  • a magnet system with the features of the preamble of claim 1 is known.
  • a spring is disposed between an insert and an armature acting on a plunger. The spring biases the armature against a stop provided on the sleeve, i. for the triggering of the magnet system, the spring force must be overcome by the magnetic force.
  • EP 0 120 422 A2 describes a similar magnetic release.
  • An armature is biased against immersion into the interior of a spool by a spring extending between a tappet-guiding insert and the plunger.
  • the adaptation of the tripping characteristic of these magnet systems takes place on the one hand by the design of the coil, on the other hand also by the suitable choice of the prestressing force.
  • a modified spring is used for this purpose.
  • the invention has for its object to provide a magnet system that with a lesser Variety of parts allows the change in the tripping characteristic of the magnet system, and to propose a mounting method for it.
  • the insert which forms an abutment for the spring, is designed so that it can be installed in two different positions, wherein the different mounting positions each cause different spring preloads, because the distance between the mounting stop and spring abutment are changed by the envelope can.
  • FIG. 4 there is shown an overall perspective view of a magnet system.
  • a support body 1 is shown, in which a sleeve 2 is inserted.
  • the sleeve 2 is surrounded by a coil 3 which is connected to a coil end 32 with the support body 1.
  • the other coil end 33 is connected to a screw 31.
  • the reference numeral 7, an anchor is shown, which is held by the force of a spring (not shown) in its rest position in which the armature 7 protrudes slightly beyond the end of the sleeve 2.
  • the support body forms a yoke for the electromagnet, which is formed by the coil 3 and the armature 7.
  • the armature 7 which is arranged in the rest position off-center to the magnetic field of the coil 3, deflected in Fig. 4 downwards. This triggers a triggering mechanism (not shown).
  • a first embodiment of the magnet system according to the invention is shown.
  • a support body 1 can be seen with a held between the arms of the support sleeve 2.
  • the sleeve 2 is surrounded by a coil 3, whose one end is connected to the support body 1 and the other end is connected to a screw 31.
  • an armature 7, a plunger 4, a spring 5 and an insert 6 are arranged.
  • the armature 7 is made of a magnetizable material (iron, etc.) and protrudes in its rest position, as shown in Fig. 1, only slightly into the area surrounded by the coil 3 section of the sleeve 2 inside. Now, if the coil 3 is traversed by a current of a certain size, the armature 7 is attracted and moved in Fig. 1 to the right. In this case, the armature 7 displaces the plunger 4, which is spring-loaded in a receptacle on the armature 7, against the force of the spring 5. When the plunger 4 is displaced, its right-hand end in FIG. 1 continues to protrude from an insert 6 and releases an associated release mechanism (not shown).
  • a magnetizable material iron, etc.
  • the insert 6 has two functions. On the one hand serves the insert 6 of the guide of the insert 6 penetrating plunger 4, on the other hand serves the armature 7 facing end face of the insert 6 as an abutment for the spring 5, thus formed between the insert 6 and one at the armature end of the plunger 4 Abutment is clamped.
  • the armature 7 is in its rest position on a peripheral shoulder of the sleeve 2 and is held by the voltage applied to the plunger seat of the armature 7, prestressed plunger in rest position.
  • the insert 6 has a circumferential projection, with which the insert 6 is supported against the force of the spring 5 on the support body 1.
  • Fig. 2 shows a second embodiment of the magnet system according to the invention.
  • This embodiment has substantially the same structure as the first one Embodiment, that is, it has a support body 1, a sleeve 2, a coil 3, a plunger 4, a spring 5, an insert 6 and an armature. 7
  • a fixed core 8 is arranged in the sleeve 2.
  • This solid core 8 of a likewise magnetizable material is, as shown in Fig. 2, in the opposite position of the armature 7 is disposed within the coil 3 enclosed by the portion of the sleeve 2 and serves to reinforce the force acting on the armature 7 magnetic attraction, when the coil 3 is current-flowed.
  • the solid core 8 has a central longitudinal bore which is penetrated by the plunger 4 and the spring 5.
  • the diameter of the bore is chosen so that the plunger 4 and the spring 5 can move freely therein. Further, serving as an abutment for the spring 5 portion of the insert 6 also project into the bore to form there the abutment for the spring 5.
  • the first embodiment can be modified in a simple manner by merely additionally the solid core 8 is pressed into the sleeve 2.
  • Fig. 3 shows a perspective view of the supporting body 1, which can be used for the first and the second embodiment is.
  • the support body 1 has an armature-side receptacle 12 and a plunger-side receptacle 11.
  • the vertical axis of the support body 1 shown in FIG. 3 with the vertical axis of the magnet system in Fig. 2 is shown aligned.
  • the plunger-side receptacle 11 and the armature-side receptacle 12 are formed as open to one side slots. Thereby, the preassembled sleeve assembly can be used with the pushed onto the sleeve coil by lateral insertion into the support body 1.
  • the sleeve 2 may be formed with a support arm 24 which engages over the opposite side of the associated arm of the support body 1.
  • other variants of the sleeve and support body design can cooperate; For example, locking lugs and locking grooves, gluing, welding etc.
  • Fig. 5 shows a sectional view of individual parts of the magnet system in the course of assembly of the magnet system according to the invention according to the first embodiment.
  • the parts are assembled in FIG. 5 from right to left, ie the individual parts are inserted from the right into the sleeve 2 in the sequence shown.
  • this assembly is done with the larger sleeve opening upwards, so that the parts can be used individually and are held by gravity.
  • the sleeve 2 has a stepped bore with the bore portions 21 (smaller diameter) and 22 (larger diameter). At the transition point between these two bore sections 21 and 22, a step is formed which forms a stop 23 for the armature 7.
  • the armature 7 has a stepped outer contour with the sections 71 (smaller diameter) and 72 (larger diameter). Between these sections, a step is formed, which forms a contact surface 73.
  • the small diameter portion 71 of the armature 7 is sized so that it can be easily slidably inserted into the small diameter bore portion 21 of the sleeve 2.
  • the large diameter portion 72 of the armature 7 is smaller than the diameter of the large diameter portion 22 of the sleeve 2, so that the armature 7 is a total of up to the contact surface 73 against the stop 23 of the sleeve 2 inserted into the sleeve 2.
  • the plunger 4 is inserted into the sleeve together with the spring (not shown in this FIG. 5 for the sake of clarity).
  • This recording improves the leadership of the plunger 4 in the sleeve 2 and keeps the spring (not shown) of the sleeve wall away, so that even in the compressed state of the spring (not shown) no terminals or Hooking can occur.
  • the receptacle 74 in the armature 7 is not mandatory.
  • the insert 6 ' is plugged with its guide bore on the tripping end 42 of the plunger 4 and pushed together the spring (not shown) along the plunger 4 until the insert 6' has reached a position relative to the sleeve 2, the insertion of the so completed assembly in the support body (see Fig. 1 and 2) allowed. Then, the sleeve is inserted together with the coil (not shown) in the support body.
  • the portion 63 'of the insert 6' determines the distance between the abutments for the spring (not shown) at the head end 41 of the plunger 4 and at the front end of the portion 63 'of the insert 6', so that by determining the length of this portion 63rd 'The bias of the spring can be selected while always the same spring is used.
  • the portion 63 'shown is longer than the corresponding portion 63 of the insert 6.
  • a higher spring bias can be adjusted.
  • the portion 63' opposite portion 64 'of the insert 6' has approximately the same length as the portion 63 of the insert 6.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Valve Device For Special Equipments (AREA)
  • Vehicle Body Suspensions (AREA)
  • Magnetically Actuated Valves (AREA)
  • Manufacture Of Motors, Generators (AREA)
EP99945973A 1998-10-02 1999-08-11 Magnetsystem Expired - Lifetime EP1036399B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19845476A DE19845476B4 (de) 1998-10-02 1998-10-02 Magnetsystem für Leitungsschutzschalter
DE19845476 1998-10-02
PCT/EP1999/005896 WO2000021109A1 (de) 1998-10-02 1999-08-11 Magnetsystem

Publications (2)

Publication Number Publication Date
EP1036399A1 EP1036399A1 (de) 2000-09-20
EP1036399B1 true EP1036399B1 (de) 2007-02-14

Family

ID=7883228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99945973A Expired - Lifetime EP1036399B1 (de) 1998-10-02 1999-08-11 Magnetsystem

Country Status (12)

Country Link
EP (1) EP1036399B1 (no)
CN (1) CN1151524C (no)
AT (1) ATE354172T1 (no)
AU (1) AU746757B2 (no)
BR (1) BR9907137A (no)
DE (2) DE19845476B4 (no)
ES (1) ES2283130T3 (no)
HU (1) HU224397B1 (no)
NO (1) NO317880B1 (no)
PL (1) PL195499B1 (no)
TR (1) TR200001582T1 (no)
WO (1) WO2000021109A1 (no)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412926B (de) * 2001-03-20 2005-08-25 Moeller Gebaeudeautomation Kg Joch für ein magnetsystem einer kurzschlussauslöseeinrichtung
DE10126854A1 (de) * 2001-06-01 2002-12-19 Siemens Ag Magnetjoch eines elektromagnetischen Auslösers
FR2858106B1 (fr) * 2003-07-22 2005-09-23 Hager Electro Sous-ensemble magnetique ameliore et disjoncteur comportant un tel sous-ensemble magnetique
DE102005020167A1 (de) * 2005-04-30 2006-11-09 Abb Patent Gmbh Elektromagnetischer Auslöser für ein elektrisches Installationsgerät
DE102008012149A1 (de) * 2008-03-01 2009-09-03 Abb Ag Schaltgerät
AT509279A1 (de) * 2008-07-31 2011-07-15 Moeller Gebaeudeautomation Gmbh Schaltgerät
JP5276523B2 (ja) * 2009-06-08 2013-08-28 三菱電機株式会社 回路遮断器
CN102064058B (zh) * 2009-11-13 2014-02-26 施耐德电器工业公司 电气保护装置
DE102011014061B4 (de) 2011-03-16 2013-11-28 Abb Ag Leitungsschutzschalter und Verfahren zum Herstellen eines Leitungsschutzschalters
CN103545151A (zh) * 2013-10-30 2014-01-29 桂林机床电器有限公司 线路保护开关
CN104377093B (zh) * 2014-09-29 2017-05-03 江苏普华力拓电器股份有限公司 一种小型断路器跳闸装置
DE102016110094B4 (de) 2016-06-01 2021-03-04 Abb Schweiz Ag Installationsschaltgerät mit einem elektromagnetischen Auslöser

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH616271A5 (no) * 1977-06-27 1980-03-14 Weber Ag Fab Elektro
DE3310914A1 (de) * 1983-03-25 1984-09-27 Brown, Boveri & Cie Ag, 6800 Mannheim Magnetausloeser
DE8527361U1 (de) * 1985-09-25 1986-01-09 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Kurzschlußauslöseorgan
DE3619239A1 (de) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Schnellausloeser fuer leitungsschutzschalter
FR2629633A1 (fr) * 1988-03-30 1989-10-06 Hager Electro Declencheur magnetique pour disjoncteur
EP0569652A1 (fr) * 1992-05-13 1993-11-18 Hager Electro S.A. Déclencheur magnétique pour disjoncteur, sous-ensemble correspondant et disjoncteurs les incorporant
AT410858B (de) * 1995-12-28 2003-08-25 Felten & Guilleaume Ag Oester Anker für magnetauslöser
AT405113B (de) * 1996-06-14 1999-05-25 Felten & Guilleaume Ag Oester Auslöse-einrichtung für ein überstrom-abschaltgerät
SE512667C2 (sv) * 1996-06-14 2000-04-17 Enpece Sigma Ab Sätt och anordning för strömställararrangemang

Also Published As

Publication number Publication date
NO20002809L (no) 2000-05-31
PL195499B1 (pl) 2007-09-28
PL340758A1 (en) 2001-02-26
HU224397B1 (hu) 2005-08-29
AU746757B2 (en) 2002-05-02
HUP0100301A3 (en) 2002-09-30
NO20002809D0 (no) 2000-05-31
DE19845476B4 (de) 2004-08-12
HUP0100301A2 (hu) 2001-07-30
DE19845476A1 (de) 2000-04-13
TR200001582T1 (tr) 2001-03-21
ATE354172T1 (de) 2007-03-15
ES2283130T3 (es) 2007-10-16
CN1287677A (zh) 2001-03-14
AU5851499A (en) 2000-04-26
BR9907137A (pt) 2000-10-03
EP1036399A1 (de) 2000-09-20
WO2000021109A1 (de) 2000-04-13
NO317880B1 (no) 2004-12-27
DE59914196D1 (de) 2007-03-29
CN1151524C (zh) 2004-05-26

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