EP0278064B1 - Magnetsystem für Schnellabschaltung - Google Patents

Magnetsystem für Schnellabschaltung Download PDF

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Publication number
EP0278064B1
EP0278064B1 EP19870116359 EP87116359A EP0278064B1 EP 0278064 B1 EP0278064 B1 EP 0278064B1 EP 19870116359 EP19870116359 EP 19870116359 EP 87116359 A EP87116359 A EP 87116359A EP 0278064 B1 EP0278064 B1 EP 0278064B1
Authority
EP
European Patent Office
Prior art keywords
magnet system
tension spring
armature
leaf spring
pole piece
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
EP19870116359
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0278064A1 (de
Inventor
Horst Zielasko
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.)
Felten and Guilleaume Energietechnik AG
Original Assignee
Felten and Guilleaume Energietechnik 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 Felten and Guilleaume Energietechnik AG filed Critical Felten and Guilleaume Energietechnik AG
Publication of EP0278064A1 publication Critical patent/EP0278064A1/de
Application granted granted Critical
Publication of EP0278064B1 publication Critical patent/EP0278064B1/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
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H01H71/323—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with rotatable armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/24—Parts rotatable or rockable outside coil
    • H01H50/28—Parts movable due to bending of a blade spring or reed

Definitions

  • the invention relates to a magnet system for quick shutdown according to the preamble of claim 1.
  • Such a magnet system is already known (DE-PS 20 29 607).
  • the magnet system housed in a plastic housing for relays, has a hinged armature that uses an armature bracket in the form of a leaf spring.
  • This leaf spring is attached to the coil body of the magnet system, which is connected with a relatively extensive suspension.
  • a sliding anchor movement in the longitudinal direction is the result and there is a strong abrasion on the rear cutting edge of the relevant pole piece. Since the bobbin pushed onto the other pole piece has a certain amount of play, the dimensions cannot be fixed properly.
  • the tension spring which is important for the interaction with the leaf spring and plays a large role in the folding anchor movement, is relatively difficult to mount because of its attachment with an eyelet device of the base plate which is mounted perpendicular to the axis of the spring.
  • the anchor bracket is designed as a leaf spring, which is attached to a pole piece on the one hand and is connected to a hinged anchor on the other.
  • a helical spring separates the magnetic circuit by tilting the hinged anchor.
  • the coil spring is relatively complicated for constructional reasons and requires a complex adjustment.
  • the invention is therefore based on the object of further developing a magnet system of the type described above with the aim of improving the long-term stability and the functional reliability compared to the known magnet systems. Since the problems with the magnet system are predominantly mechanical, the main focus is on improving the moving parts of the system, such as hinged anchors, anchor brackets and tension springs.
  • the advantages achieved by the invention are an improvement in the mechanical life and an increase in the degree of automation.
  • the simple plugging of the leaf spring onto one of the pole pieces and the stable dimensional relationships between the pole piece with the coil former and the armature and the insertion of the free end of the tension spring between the extended part of the coil former and the base plate make a significant contribution to achieving the goals set.
  • the leaf spring not only has the task of guiding the armature safely so that it always hits the same point on the opposite pole piece. Due to its shape, the leaf spring also fulfills the task of compensating for the force component, which is generated by the tension spring when the armature tilts over the rear cutting edge, in such a way that there is at least a reduction in the load on this edge. This can be done by choosing the appropriate one Counterforce component, which is generated by the leaf spring, even go so far that the armature lifts completely from this cutting edge during its tilting movement, which means that this edge has no wear at all during the life of the magnet system.
  • a box-shaped extension is used to attach the anchor bracket, which is advantageously pre-bent in such a way that it sits resiliently and self-locking on the free pole piece (claim 5).
  • box-shaped extension can be attached to the free pole piece by means of double-sided spot welding, whereby the anchor bracket is advantageously precisely fixed (claim 7).
  • the magnet system consists of a yoke 1, to which two pole pieces 2 and 3 are arranged at right angles thereto.
  • a hinged anchor 4 which tilts over a cutting edge 31 of the pole piece 3.
  • the hinged anchor is extended beyond its contact surface on the pole piece 3.
  • the hinged anchor is held by an anchor bracket 7, which consists of a leaf spring 71 and a box-shaped extension 72.
  • the leaf spring is connected to the extended part of the folding anchor in the connection point 73, while the box-shaped part is plugged onto the pole piece 3.
  • a coil former 5 with a winding is seated on the pole piece 2.
  • a release pin 6 which penetrates a cap 12.
  • the leaf spring has a theoretical bending point 74, which lies above the cutting edge 31 of the pole piece 3.
  • the bobbin 5 has an elongated part 51 which is equipped with an insertion opening 10 for the tension spring 8.
  • the tension spring is equipped with two turns at the end, which are larger in diameter than the other diameters. The two larger turns come to lie in a depression 131 in the base plate 13. Since the last two turns are larger in diameter than the insertion opening 10, the tension spring end is held after inserting the last two turns into the trough and by joining the coil former to the base plate.
  • the coil body is provided with pin-shaped projections 52, which in Holes in the base plate and then welded.
  • the base plate also contains a trough in which a permanent magnet 11 is inserted.
  • the anchor bracket 7 consists of a leaf spring 71 and a box-shaped extension 72.
  • the connection point of the leaf spring to the hinged anchor is designated by 73.
  • the leaf spring has a cutout 75 which has an approximately rectangular shape.
  • the side strips 76 remaining in the area of this cutout are designed so that the hinged anchor can move freely.
  • the side parts are pre-bent with bending angles 77 that are less than 90 °.
  • the lower corners of the side parts are provided with an incision 78 and the side parts are slightly bent outwards up to the level of the incisions.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
EP19870116359 1986-12-19 1987-11-06 Magnetsystem für Schnellabschaltung Expired - Lifetime EP0278064B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3643510 1986-12-19
DE19863643510 DE3643510A1 (de) 1986-12-19 1986-12-19 Magnetsystem fuer schnellabschaltung

Publications (2)

Publication Number Publication Date
EP0278064A1 EP0278064A1 (de) 1988-08-17
EP0278064B1 true EP0278064B1 (de) 1991-10-23

Family

ID=6316634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870116359 Expired - Lifetime EP0278064B1 (de) 1986-12-19 1987-11-06 Magnetsystem für Schnellabschaltung

Country Status (5)

Country Link
EP (1) EP0278064B1 (es)
CN (1) CN1007469B (es)
BR (1) BR8706829A (es)
DE (2) DE3643510A1 (es)
GR (1) GR3003186T3 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838444A1 (de) * 1988-11-12 1990-05-17 Felten & Guilleaume Energie Magnetsystem fuer schnellabschaltung
DE9103978U1 (de) * 1991-04-02 1991-06-27 Felten & Guilleaume Energietechnik AG, 51063 Köln Magnetsystem für ein schnellabschaltendes Klappankerrelais
DE4111092A1 (de) * 1991-04-07 1992-10-08 Schiele Gmbh & Co Kg Fehlerstromrelais
ES1025149Y (es) * 1993-06-30 1994-06-01 Electric Distrib & Contr Es Sa Rele perfeccionado.
ES1025695Y (es) * 1993-09-09 1994-07-16 Electric Distrib & Contr Es Sa Rele perfeccionado.
DE19637076A1 (de) * 1996-09-12 1998-03-19 Maier & Cie C Magnetauslöser, insbesondere für einen Fehlerstromschutzschalter
DE69736289T2 (de) * 1997-10-23 2007-08-30 Ge Power Controls Espana S.A., Mostoles Elektromagnetisches Relais
CN101373688B (zh) * 2008-10-16 2012-05-09 上海电科电器科技有限公司 电磁铁后备保护装置
DE102014226042B4 (de) * 2014-12-16 2021-02-11 Siemens Aktiengesellschaft Elektromagnetische Auslösevorrichtung und Schutzschaltgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE759996A (fr) * 1970-01-02 1971-05-17 Felten & Guilleaume Schaltanl Declencheur pour disjoncteur de protection a courant de defaut
DE2029607C3 (de) * 1970-06-16 1974-07-18 Felten & Guilleaume Schaltanlagen Gmbh, 4150 Krefeld Kunststoffgehäuse für Relais
DE7421405U (de) * 1974-06-24 1974-09-26 Felten & Guilleaume Schaltanlagen Gmbh Magnetsystem für Klappankerrelais
US4259652A (en) * 1979-04-30 1981-03-31 Eltra Corporation Reversing relay for permanent magnet DC motor
DE3008295A1 (de) * 1980-01-22 1981-09-24 Mecanismos Auxiliares Industriales, S.A. M.A.I.S.A., Valls, Tarragona Klappankerrelais

Also Published As

Publication number Publication date
DE3774115D1 (es) 1991-11-28
GR3003186T3 (en) 1993-02-17
EP0278064A1 (de) 1988-08-17
CN1007469B (zh) 1990-04-04
BR8706829A (pt) 1988-07-19
DE3643510A1 (de) 1988-06-30
CN87101151A (zh) 1988-06-29

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