EP0369111B1 - Magnetsystem für Schnellabschaltung - Google Patents

Magnetsystem für Schnellabschaltung Download PDF

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Publication number
EP0369111B1
EP0369111B1 EP89112814A EP89112814A EP0369111B1 EP 0369111 B1 EP0369111 B1 EP 0369111B1 EP 89112814 A EP89112814 A EP 89112814A EP 89112814 A EP89112814 A EP 89112814A EP 0369111 B1 EP0369111 B1 EP 0369111B1
Authority
EP
European Patent Office
Prior art keywords
armature
bearing
leaf spring
pole piece
hinged
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
EP89112814A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0369111A1 (de
Inventor
Johannes Dipl.-Ing. Becker
Wolfgang Neumann
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 EP0369111A1 publication Critical patent/EP0369111A1/de
Application granted granted Critical
Publication of EP0369111B1 publication Critical patent/EP0369111B1/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
    • 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
    • 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

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. The result is a sliding anchor movement in the longitudinal direction and there is a strong abrasion on the rear cutting edge of a first leg of the pole piece in question. Since the bobbin pushed onto the second leg of the pole piece has a certain amount of play, the dimensional relationships cannot be fixed properly.
  • the tension spring which is important for the interaction with the leaf spring and which plays a major role in the folding anchor movement is relatively difficult to mount because of its fastening with an eyelet device of the base plate 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 folding anchor on the other.
  • a helical spring separates the magnetic circuit by tilting the hinged anchor.
  • the interaction of the hinged anchor with the Leaf spring and the coil spring is, however, relatively complicated for constructional reasons and requires a complex adjustment.
  • the magnet systems described above are very sensitive to changes in the magnetic circuit, especially to changes in the air gap values between the pole piece and the hinged armature.
  • the air gap widths between the two parts of the magnetic circuit depend on the surfaces at the contact points and on particles that are located between the surfaces. Changes in the position of the parts of the magnetic circuit relative to one another can also cause an air gap change, which is due to different support points.
  • the invention is based on the object of further developing a magnet system of the type described above with the aim of ensuring response values which are as constant as possible even after a high number of switching cycles, the primary aim being to achieve improved armature mounting.
  • the individual parts required for this should be easy to manufacture and enable precise installation positions with simple assembly technology.
  • the leaf spring is designed as an easy to manufacture part, which serves almost exclusively the anchor guide, in which only longitudinal forces are exerted on the hinged anchor.
  • Advantageous embodiments of the subject matter according to claim 1 can be found in the subclaims.
  • the supporting part of the magnet system is a pole piece 1, of which a first leg can be seen in a small section.
  • a bobbin 2 On a second leg of this pole piece, which is not visible, a bobbin 2 is attached, which carries a winding 3.
  • the magnetic circuit is closed by a hinged armature 4, which rests on both legs of the pole piece in the idle state.
  • a bearing edge 9 of the armature bearing 7 is designed such that a very small gap is formed with the hinged armature 4 when the magnetic circuit is closed.
  • the hinged anchor 4 tilts it reaches the bearing edge 9 after a very short distance, which, since the entire anchor bearing 7 is made of plastic, has favorable bearing properties and thus a sliding movement enabled with very little abrasion.
  • the armature bearing 7 has two webs on the narrow sides and on the side facing the hinged armature 4, which serve to position the armature bearing 7 on the first leg of the pole piece 1. This ensures that the bearing edge 9 can be positioned very precisely in relation to the pole face of the first leg of the pole piece 1. This always ensures an optimal position of the bearing edge 9 in the finished system.
  • a relatively large amount of abrasion occurs when parts made of soft magnetic material slide against one another. If this abrasion gets into the air gap, the magnetic properties and thus the response values change.
  • the above-described storage almost completely prevents the metal parts from sliding on one another.
  • connection of the leaf spring 5 to the armature bearing 7 takes place on a support 10 which is connected in one piece to the armature bearing 7. These two parts are connected by means of spot welding at the fastening points 11.
  • a tension spring 12 has the task of causing the hinged anchor 4 to tilt when triggered. This is done in that the magnetic field of a permanent magnet 13 is canceled by an opposing electromagnetic field in the winding 3. Due to the movement of the hinged armature 4, a release pin 14 is pushed outwards through a cap 16 in order to actuate a switching lock, not shown. The entire arrangement of the magnet system is accommodated on a lower housing part 15, which is closed with the cap 16.
  • Fig. 2 details of the anchor bracket are shown.
  • the leaf spring 5 is essentially U-shaped, the two leg ends 6 being connected to the armature bearing 7 via the support 10.
  • the anchor bracket which consists of the leaf spring 5 and the anchor bearing 7, is a metal-plastic composite part.
  • the support 10 serves to connect them two parts, with 11 the attachment points for spot welding are indicated.
  • the two webs 8 of the anchor bearing 7 ensure a perfect fit of the anchor holder on the first leg of the pole piece 1.
  • the bearing edge 9 is decisive for the point of tilting of the hinged armature 4 together with the leaf spring 5 fastened with the hinged armature 4.
  • Both the point of Tilting of the hinged armature 4 and the fastening points 11 lie directly on the first leg of the pole piece. This ensures a permanently uniform positioning of the hinged armature 4 relative to the pole piece 1.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP89112814A 1988-11-12 1989-07-13 Magnetsystem für Schnellabschaltung Expired - Lifetime EP0369111B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3838444A DE3838444A1 (de) 1988-11-12 1988-11-12 Magnetsystem fuer schnellabschaltung
DE3838444 1988-11-12
SG49394A SG49394G (en) 1988-11-12 1994-04-12 Magnet system for rapid disconnection

Publications (2)

Publication Number Publication Date
EP0369111A1 EP0369111A1 (de) 1990-05-23
EP0369111B1 true EP0369111B1 (de) 1993-01-27

Family

ID=25874178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112814A Expired - Lifetime EP0369111B1 (de) 1988-11-12 1989-07-13 Magnetsystem für Schnellabschaltung

Country Status (9)

Country Link
EP (1) EP0369111B1 (pt)
CN (1) CN1020021C (pt)
AR (1) AR241972A1 (pt)
BR (1) BR8905198A (pt)
DE (3) DE3838444A1 (pt)
ES (1) ES2037342T3 (pt)
GR (1) GR3007176T3 (pt)
HK (1) HK67894A (pt)
SG (1) SG49394G (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1025149Y (es) * 1993-06-30 1994-06-01 Electric Distrib & Contr Es Sa Rele perfeccionado.
DE19637076A1 (de) * 1996-09-12 1998-03-19 Maier & Cie C Magnetauslöser, insbesondere für einen Fehlerstromschutzschalter
DE50307420D1 (de) * 2003-04-15 2007-07-19 Siemens Ag Magnetsystem für ein Klappankerrelais

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1288165A (fr) * 1961-02-08 1962-03-24 Comp Generale Electricite Perfectionnements aux relais électromagnétiques rapides
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
EP0002748A1 (de) * 1977-12-23 1979-07-11 CMC Carl Maier + Cie AG Magnetauslöser für Fehlerstromschutzschalter
DE3643510A1 (de) * 1986-12-19 1988-06-30 Felten & Guilleaume Energie Magnetsystem fuer schnellabschaltung

Also Published As

Publication number Publication date
AR241972A1 (es) 1993-01-29
DE3838444A1 (de) 1990-05-17
ES2037342T3 (es) 1993-06-16
CN1042800A (zh) 1990-06-06
BR8905198A (pt) 1990-05-15
DE3838444C2 (pt) 1991-04-18
SG49394G (en) 1995-03-17
EP0369111A1 (de) 1990-05-23
DE8913372U1 (de) 1990-01-11
HK67894A (en) 1994-07-22
GR3007176T3 (pt) 1993-07-30
CN1020021C (zh) 1993-03-03
DE58903402D1 (de) 1993-03-11

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