EP0870315B1 - Induit pour declencheur magnetique - Google Patents

Induit pour declencheur magnetique Download PDF

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Publication number
EP0870315B1
EP0870315B1 EP96942173A EP96942173A EP0870315B1 EP 0870315 B1 EP0870315 B1 EP 0870315B1 EP 96942173 A EP96942173 A EP 96942173A EP 96942173 A EP96942173 A EP 96942173A EP 0870315 B1 EP0870315 B1 EP 0870315B1
Authority
EP
European Patent Office
Prior art keywords
armature
metal strip
edges
tongue
sleeve
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
EP96942173A
Other languages
German (de)
English (en)
Other versions
EP0870315A1 (fr
Inventor
Adolf Tetik
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 Austria AG
Original Assignee
Felten and Guilleaume Austria 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 Austria AG filed Critical Felten and Guilleaume Austria AG
Publication of EP0870315A1 publication Critical patent/EP0870315A1/fr
Application granted granted Critical
Publication of EP0870315B1 publication Critical patent/EP0870315B1/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 anchor for actuating the trigger plunger of magnetic triggers for circuit breakers, the one too is a sleeve-shaped sheet metal strip, and a stop for taking the trigger plunger with you.
  • Magnetic releases for circuit breakers are currently used Anchors mainly manufactured by machining. This is not only a time-consuming and costly manufacturing method that with not inconsiderable material losses, but the armatures for magnetic releases produced in this way have a comparative one high mass that the response of the with such an armature equipped magnetic trigger disadvantageous influenced.
  • An anchor of the type mentioned is from DE 25 31st 215 A known.
  • this anchor known from DE 25 31 215 the edges of the sheet metal strip rolled to anchor lie on the joint also not in areas.
  • the stop for taking the trigger plunger on Anchor formed by a recess in which a formation engages the anchor plunger.
  • a disadvantage of this known Anchor is that in the direction of movement of the magnet armature extending sheet metal strip end faces form an anchor slot and are spaced apart so that eddy currents are reduced. Such an anchor with the wanted As experiments have shown, air gap is in magnetic releases not satisfactory.
  • the invention has for its object a simpler manufacturable and effective armature for magnetic release for To provide circuit breakers.
  • this object is achieved in that the Edges of the metal strip aligned parallel to the axis of the anchor are close to each other at least in some areas and that the stop for the trigger plunger at least one with the Anchor formed in one piece, aligned transversely to the axis of the anchor Tongue is.
  • Anchors for magnetic releases are the subject of the subclaims.
  • the armature for magnetic releases proposed according to the invention can not only be deformed e.g. in a rolling process from a corresponding sheet metal blank, e.g. one punched Circuit board, manufacture, but also offers the advantage of a lower mass than the previously used, by cutting Machined armature for magnetic triggers. Furthermore, it has surprisingly been found that the inventive Anchor in magnetic triggers is very beneficial because no detrimental to the magnetic properties of the armature influencing air gap is present because the edges of the to Anchor of rolled sheet metal strip is at least partially tight lie together.
  • the tongue of the anchor according to the invention which acts as a driver for serves the trigger plunger, allows a simple construction of the trigger plunger and this can, if desired, as usual be carried out since the in the prior art (DE 25 31 215 A) required shaping is not required.
  • Magnetic release 1 of the known design shown in FIG. 1 are used in circuit breakers. They consist of a yoke 2 made of magnetically conductive material with which the Carrier 4 made of electrically conductive material Fixed contact 3 of the circuit breaker is connected. Furthermore, the magnetic release 1 has an excitation winding 5, the electrically conductive via (not shown) terminals with the is connected to the line to be protected. Inside the coil 5 a guide sleeve 6, usually made of plastic, is used, connected to the yoke 2 of the magnetic release 1, sleeve-shaped stop 7 is inserted.
  • FIG. 3 it can be slid in the guide sleeve 6 an armature 10 made of magnetically conductive material arranged, the end facing away from the stop sleeve 7 11 has an inwardly projecting stop which in Embodiment is formed by a tongue 12 and on the end 13 received inside the armature 10 a trigger plunger 14 supports.
  • a return spring 16 Over the tapered front Part 15 of the trigger plunger 14 is a return spring 16 inserted with its front end 17 on the inside of the Magnetic release 1 received end 18 of the stop sleeve 7 abuts and the trigger plunger 14 in its shown in Fig. 3 Standby position.
  • Anchor 10 used is as shown in FIGS. 4, 5 and 6 is, from a sheet metal (stamped) part with essentially rectangular outline shape shaped into a ring or sleeve is.
  • the stamped sheet metal part becomes a ring (sleeve) shaped that aligned parallel to the axis of the armature 10 Edges 20 lie close together and at joint 21 of these edges 20 there is no air gap or only a small one.
  • edges parallel to the axis 20 of the sheet metal strip deformed to form anchor 10 close to one another can lie in the manufacture of the armature 10 from the Sheet metal blanks are bent over, so that in the axial direction running edges 20 of the sheet metal blank also in the finished Anchors 10 are at least partially close together and no detrimental to the magnetic properties of the armature influencing air gap is present.
  • edges 20 aligned flat. This can e.g. can be easily achieved that these edges 20th when manufacturing (punching) the sheet metal part to the level of (still undeformed, i.e. flat) sheet metal part executed obliquely become.
  • an air gap is in the The area of the joint 21 practically does not exist.
  • the Edges 20 at a small, acute angle to each other and rest against each other only in the area of their inner edges 28.
  • Air gap in the area of joint 20 is also the same here small that it has the desired magnetic properties of the Anchor 10 is not significantly adversely affected.
  • Soft magnetic materials have proven particularly suitable proven as they are known per se for DC relays. Have the preferred soft magnetic materials a magnetic saturation of 1.4 to 2.0 T at a field strength of 4000 A / m.
  • a particularly preferred material for the anchor 10 according to the invention is that in DIN 17 405 (September 1979) with RFe80 (material number 1.1014) Material that has a magnetic saturation of 1.6 T at a Has a field strength of 4000 A / m.
  • An armature 10 for magnetic releases 1 for circuit breakers, in particular for circuit breakers, consists of one to one Sleeve with circular cross-sectional shape shaped sheet metal strips, its edges aligned with the axis of the armature 10 20 are at least partially close to each other.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Magnetic Treatment Devices (AREA)
  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Structure Of Transmissions (AREA)
  • Piles And Underground Anchors (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Magnetic Heads (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Claims (12)

  1. Induit (10) pour l'actionnement du poussoir de déclenchement (14) de déclencheurs magnétiques (1) destinés à des disjoncteurs, lequel induit est formé d'une bande de tôle conformée en manchon et présente une butée (11) pour l'entraínement du poussoir de déclenchement (14), caractérisé par le fait que les bords (20) de la bande de tôle orientés parallèlement à l'axe de l'induit (10), localement au moins, sont serrés les uns contre les autres et par le fait que la butée pour le poussoir de déclenchement (14) est formée par au moins une languette (12) qui est réalisée d'une pièce avec l'induit (10) et est orientée transversalement à l'axe de l'induit (10).
  2. Induit selon la revendication 1, caractérisé par le fait que la bande de tôle est enroulée pour former un manchon à section transversale annulaire circulaire.
  3. Induit selon la revendication 1 ou 2, caractérisé par le fait que la languette (12) forme un angle droit avec la paroi de l'induit (1) et est repliée en direction de l'intérieur.
  4. Induit selon une des revendications 1 à 3, caractérisé par le fait que le pied (25) de la languette (12) qui est situé dans la paroi de l'induit (1) est dégagé des deux côtés par des encoches.
  5. Induit selon une des revendications 1 à 4, caractérisé par le fait que la languette (12) est disposée à l'intérieur de la surface frontale (27) voisine de la languette (12), du manchon qui forme l'induit (10).
  6. Induit selon la revendication 5, caractérisé par le fait que la surface extérieure de la languette (12) est alignée avec la surface frontale (27) voisine de l'induit (10).
  7. Induit selon une des revendications 1 à 6, caractérisé par le fait que les bords (20) de la bande de tôle façonnée en induit (10) sont appliqués à plat l'un contre l'autre dans la région de la coupe (21) de l'induit (10) (figure 6).
  8. Induit selon la revendication 7, caractérisé par le lait que les côtés étroits de la bande de tôle, dans la région des bords (20), lorsque la bande de tôle est encore plane, sont inclinés par rapport au plan de la bande de tôle.
  9. Induit selon une des revendications 1 à 6, caractérisé par le fait que les bords (20) de la bande de tôle façonnée en induit (10), dans la région de la coupe (21) de l'induit (10), sont en contact l'un avec l'autre par leurs arêtes intérieures (28).
  10. Induit selon la revendication 9, caractérisé par le fait que les côtés étroits de la bande de tôle, dans la région des bords (20), lorsque la bande de tôle est encore plane, sont orientés en à angle droit par rapport au plan de la bande de tôle.
  11. Induit selon une des revendications 1 à 10, caractérisé par le fait que l'induit (10) est formé d'un matériau magnétique doux avec une saturation magnétique comprise entre 1,64 et 2,0 T, de préférence de 1,6 T pour une intensité de champ de 4000 A/m.
  12. Induit selon une des revendications 1 à 11, caractérisé par le fait que l'induit (10) est formé du matériau RFe 80 selon norme DIN 17 405.
EP96942173A 1995-12-28 1996-12-18 Induit pour declencheur magnetique Expired - Lifetime EP0870315B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT211195 1995-12-28
AT2111/95 1995-12-28
AT0211195A AT410858B (de) 1995-12-28 1995-12-28 Anker für magnetauslöser
PCT/AT1996/000252 WO1997024746A1 (fr) 1995-12-28 1996-12-18 Induit pour declencheur magnetique

Publications (2)

Publication Number Publication Date
EP0870315A1 EP0870315A1 (fr) 1998-10-14
EP0870315B1 true EP0870315B1 (fr) 1999-09-29

Family

ID=3528017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96942173A Expired - Lifetime EP0870315B1 (fr) 1995-12-28 1996-12-18 Induit pour declencheur magnetique

Country Status (12)

Country Link
EP (1) EP0870315B1 (fr)
AT (2) AT410858B (fr)
AU (1) AU713111B2 (fr)
CZ (1) CZ287121B6 (fr)
DE (1) DE59603247D1 (fr)
ES (1) ES2139395T3 (fr)
GR (1) GR3032197T3 (fr)
HU (1) HU222336B1 (fr)
NO (1) NO312147B1 (fr)
PL (1) PL181900B1 (fr)
SK (1) SK285089B6 (fr)
WO (1) WO1997024746A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845476B4 (de) * 1998-10-02 2004-08-12 Aeg Niederspannungstechnik Gmbh & Co Kg Magnetsystem für Leitungsschutzschalter
DE10126849A1 (de) * 2001-06-01 2002-12-12 Siemens Ag Auslöseanker eines elektromagnetischen Auslösers
DE102015203750B4 (de) * 2015-03-03 2021-05-27 Siemens Aktiengesellschaft Entriegelungsvorrichtung für einen Leistungsschalter und Leistungsschalter
EP3471114A1 (fr) * 2017-10-14 2019-04-17 Hamilton Sundstrand Corporation Noyau lvdt formé d'une feuille métallique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2531215A1 (de) * 1975-07-12 1977-02-03 Bbc Brown Boveri & Cie Magnetischer ausloeser
FR2527831B1 (fr) * 1982-05-28 1986-08-29 Telemecanique Electrique Noyau plongeur, procede pour le fabriquer et relais a seuil d'intensite ainsi equipe
DE3310914A1 (de) * 1983-03-25 1984-09-27 Brown, Boveri & Cie Ag, 6800 Mannheim Magnetausloeser
DE3619239A1 (de) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Schnellausloeser fuer leitungsschutzschalter
DE3904448A1 (de) * 1989-02-15 1990-08-16 Bosch Gmbh Robert Magnetanker

Also Published As

Publication number Publication date
EP0870315A1 (fr) 1998-10-14
HUP9901164A2 (hu) 1999-07-28
NO982912D0 (no) 1998-06-22
CZ199398A3 (cs) 1998-12-16
SK88698A3 (en) 1999-10-08
ES2139395T3 (es) 2000-02-01
DE59603247D1 (de) 1999-11-04
AU1132197A (en) 1997-07-28
HUP9901164A3 (en) 1999-11-29
WO1997024746A1 (fr) 1997-07-10
PL327232A1 (en) 1998-12-07
AT410858B (de) 2003-08-25
NO982912L (no) 1998-08-21
GR3032197T3 (en) 2000-04-27
ATA211195A (de) 2002-12-15
HU222336B1 (hu) 2003-06-28
PL181900B1 (en) 2001-10-31
AU713111B2 (en) 1999-11-25
NO312147B1 (no) 2002-03-25
CZ287121B6 (en) 2000-09-13
SK285089B6 (sk) 2006-06-01
ATE185219T1 (de) 1999-10-15

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