EP1073083A2 - Déclencheur électromagnétique - Google Patents

Déclencheur électromagnétique Download PDF

Info

Publication number
EP1073083A2
EP1073083A2 EP00115256A EP00115256A EP1073083A2 EP 1073083 A2 EP1073083 A2 EP 1073083A2 EP 00115256 A EP00115256 A EP 00115256A EP 00115256 A EP00115256 A EP 00115256A EP 1073083 A2 EP1073083 A2 EP 1073083A2
Authority
EP
European Patent Office
Prior art keywords
armature
spring
coil
anchor
trigger 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
EP00115256A
Other languages
German (de)
English (en)
Other versions
EP1073083B1 (fr
EP1073083A3 (fr
Inventor
Corell Dipl.-Ing. Göbel
Guido Dipl.-Ing. Niewöhner
Ralf Dipl.-Ing. Müller
Georgi Dipl.-Ing. Cwetanski
Jürgen Dipl.-Ing. Hauk
Jörg Ing. Stamm
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1073083A2 publication Critical patent/EP1073083A2/fr
Publication of EP1073083A3 publication Critical patent/EP1073083A3/fr
Application granted granted Critical
Publication of EP1073083B1 publication Critical patent/EP1073083B1/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
    • 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

Definitions

  • the invention relates to an electromagnetic trigger according to the preamble of Claim 1.
  • An electromagnetic release of a motor protection switch usually consists of a yoke, a bobbin of a coil, an armature and a shackle spring.
  • the current flows through the coil, which is monitored by the switching device and exerts a magnetic force on the armature, which is guided in the coil body.
  • the shackle spring By means of the shackle spring, the armature is prevented from moving even with small currents sets in motion. Only when the magnetic force on the anchor, the counterforce of the If the cage spring exceeds what is the case with a certain overcurrent, the anchor becomes pulled into the coil.
  • This movement of the armature is in a motor protection switch usually used to connect the contact bridge of the switchgear directly to open and to unlatch the key switch, in the latter case a permanent opening of the contact is achieved, whereas in the former case the contact bridge returns to the closed position after a short time.
  • the shackle spring is designed as a leg spring.
  • One leg of the spring is supported on the bobbin, whereas the other engages in an annular groove in the anchor.
  • the armature moves into the coil body one leg of the spring is moved in the same direction, which causes the ankle spring to bend in a direction perpendicular to the first movement moves. This bend then presses a slide that finally the switch lock is released.
  • the shackle spring is complicated and in the second case is one high number of parts available.
  • the object of the invention is an electromagnetic release of the aforementioned To create art that consists of a few simple parts and beyond enables easy assembly.
  • the armature then has at its end protruding from the coil in a manner known per se Way a circumferential groove in which the end of the coil spring under pressure intervenes and ties the armature up to a certain value of an overcurrent.
  • the turn of the cage spring facing the anchor is preferably deformed in such a way that that it engages positively in the groove.
  • This deformation can then be used even further in such a way that it is radial Forms the lead when tightening the anchor on a latching point of the Switching device opens to unlatch it.
  • the partial housing 10 is of two parallel side walls 11 and 12 bounded and has partitions 13 and 14 through the chambers 15, 16 and 17 are formed, in which an electromagnetic release and Like. Are, the structure of the electromagnetic release with reference to FIG. 2nd and 3 will be described.
  • each of the two side walls 11 and 12 there is a bearing 18 and 19 for one Swivel shaft 20, on which arms 21, 22 and 23 are formed, with the in no closer as shown, a latching point can be opened in a switch lock can.
  • an electromagnetic trigger 30 with a yoke 31, which is approximately one U-shape with two legs 32 and 33 forms; perpendicular to the two parallel ones Legs 32 has a coil 34 which surrounds an armature 35.
  • the anchor 35 has its end protruding from the coil 34 has a circumferential groove 36, whereby a Mushroom head 37 is formed.
  • the armature 35 is surrounded by a shackle spring 38, which is shown in more detail in FIG. 2 is. It comprises a number of circular, helically associated turns 39, whose last turn 40 is oval-shaped and has two legs 41 and 42, that run perpendicular to the spring axis and span a plane that also is perpendicular to the axis.
  • the turn 40 with the two legs 41 and 42 forms a protrusion 43 that radially surrounds the coil spring 38 towered over.
  • the distance D between the two legs 42, 42 is such that the two Lather legs 41, 42 into the interior of groove 36; it corresponds approximately to the inside diameter the groove 36.
  • the spring 38 has a form-fitting end anchor 35 is connected; with its end facing the coil 34 lies on the yoke web or yoke leg 32. As soon as the armature 35 inside the coil 34 is drawn in, with a certain tightening force at a certain overcurrent required and must be exceeded, then the spring 38 is compressed by the mushroom 37.
  • Extensions 24, 25 and 26 are integrally formed on the arms 21, 22 and 23. On the extension 24 pushes the projection 43 when tightening the armature, causing the shaft 20 in a clockwise direction is pivoted and so opens a switch lock, not shown.
  • Fig. 1 only a magnet system is shown; the two chambers 16 and 17 also have such electromagnetic triggers.
  • Fig. 3 shows that the yoke web or yoke leg 32 from a guide housing 44 is surrounded, on which a rod 45 is formed, which is parallel to the anchor axis in The armature 35 protrudes in the direction not triggered.
  • the free end of the Rod 45 has a nose 46 which is used for assembly to guide and hold the Spring 38 and thus also for guiding and holding the armature 35 during the Assembly serves.
  • Fig. 1 Observer facing upwards, another housing part on the armature 35th press a certain amount into the coil with the tether spring.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Lock And Its Accessories (AREA)
  • Switch Cases, Indication, And Locking (AREA)
EP00115256A 1999-07-29 2000-07-14 Déclencheur électromagnétique Expired - Lifetime EP1073083B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19935662 1999-07-29
DE19935662A DE19935662A1 (de) 1999-07-29 1999-07-29 Elektromagnetischer Auslöser

Publications (3)

Publication Number Publication Date
EP1073083A2 true EP1073083A2 (fr) 2001-01-31
EP1073083A3 EP1073083A3 (fr) 2002-08-21
EP1073083B1 EP1073083B1 (fr) 2003-08-27

Family

ID=7916488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00115256A Expired - Lifetime EP1073083B1 (fr) 1999-07-29 2000-07-14 Déclencheur électromagnétique

Country Status (2)

Country Link
EP (1) EP1073083B1 (fr)
DE (2) DE19935662A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251541A1 (fr) * 2001-04-21 2002-10-23 ABB PATENT GmbH Disjoncteur de protection pour moteurs
DE102010005345A1 (de) 2010-01-21 2011-07-28 Abb Ag, 68309 Elektrisches Schaltgerät in modularer Bauweise
US8049584B2 (en) * 2008-03-01 2011-11-01 Abb Ag Switching device
DE202015100926U1 (de) 2015-02-26 2015-03-10 Abb Technology Ag Elektrisches Schaltgerät in modularer Bauweise

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10002773B4 (de) * 2000-01-22 2005-12-15 Abb Patent Gmbh Motorschutzschalter
DE102008009198A1 (de) * 2007-04-30 2008-11-06 Abb Ag Übertragungswelle für ein Installationsschaltgerät

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096469B (de) * 1959-01-24 1961-01-05 Elektroinstallation Annaberg V Elektromagnetische Schnellausloese-vorrichtung fuer UEberstromschalter, insbesondere Kleinselbstschalter
EP0295162A1 (fr) * 1987-06-11 1988-12-14 Hager Electro S.A. Ensemble magnétothermique de disjonction pour disjoncteur ou disjoncteur différentiel
EP0501844A1 (fr) * 1991-02-28 1992-09-02 Schneider Electric Sa Interrupteur de protection incorporant un sous-ensemble magnétothermique de déclenchement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH363402A (de) * 1958-04-10 1962-07-31 Stotz Kontakt Gmbh Magnetauslöser mit einer Rückholfeder, insbesondere für elektrische Selbstschalter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096469B (de) * 1959-01-24 1961-01-05 Elektroinstallation Annaberg V Elektromagnetische Schnellausloese-vorrichtung fuer UEberstromschalter, insbesondere Kleinselbstschalter
EP0295162A1 (fr) * 1987-06-11 1988-12-14 Hager Electro S.A. Ensemble magnétothermique de disjonction pour disjoncteur ou disjoncteur différentiel
EP0501844A1 (fr) * 1991-02-28 1992-09-02 Schneider Electric Sa Interrupteur de protection incorporant un sous-ensemble magnétothermique de déclenchement

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251541A1 (fr) * 2001-04-21 2002-10-23 ABB PATENT GmbH Disjoncteur de protection pour moteurs
US8049584B2 (en) * 2008-03-01 2011-11-01 Abb Ag Switching device
CN101556883B (zh) * 2008-03-01 2014-08-06 Abb股份有限公司 开关装置
DE102010005345A1 (de) 2010-01-21 2011-07-28 Abb Ag, 68309 Elektrisches Schaltgerät in modularer Bauweise
DE102010005345B4 (de) 2010-01-21 2022-04-21 Abb Schweiz Ag Elektrisches Schaltgerät in modularer Bauweise
DE202015100926U1 (de) 2015-02-26 2015-03-10 Abb Technology Ag Elektrisches Schaltgerät in modularer Bauweise

Also Published As

Publication number Publication date
DE19935662A1 (de) 2001-02-01
DE50003423D1 (de) 2003-10-02
EP1073083B1 (fr) 2003-08-27
EP1073083A3 (fr) 2002-08-21

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