EP1474815B1 - Method for producing the surface geometry of solenoids - Google Patents

Method for producing the surface geometry of solenoids Download PDF

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Publication number
EP1474815B1
EP1474815B1 EP03739372A EP03739372A EP1474815B1 EP 1474815 B1 EP1474815 B1 EP 1474815B1 EP 03739372 A EP03739372 A EP 03739372A EP 03739372 A EP03739372 A EP 03739372A EP 1474815 B1 EP1474815 B1 EP 1474815B1
Authority
EP
European Patent Office
Prior art keywords
producing
clamping device
pole
electromagnet
surface geometry
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
EP03739372A
Other languages
German (de)
French (fr)
Other versions
EP1474815A1 (en
Inventor
Peter Eckl
Ralph-Ronald GÖBEL
Norbert Mitlmeier
Johann Hofrichter
Matthias Knab
Norbert Zimmermann
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.)
Siemens AG
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Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP1474815A1 publication Critical patent/EP1474815A1/en
Application granted granted Critical
Publication of EP1474815B1 publication Critical patent/EP1474815B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y10T29/49012—Rotor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making

Definitions

  • the invention relates to a process for the preparation a part of an electromagnet with a center leg and two outer pole legs, each having a pole face and have a facing away from this back.
  • the pole faces of the Iron parts i. Anchor and yoke, ground as smooth as possible.
  • the flatness of the backrest is the Loops imaged on the support surface. Due to machine and part tolerances, this image is concave or convex. In the concave image are the inner leg sides not required, i. It creates an air gap, the weakens the tributary in the magnet system. This leads to a Reduction of holding power and increase in the tendency to hum the magnet systems.
  • a method according to the preamble of claim 1 is known from JP 05 06 2852 A.
  • the invention is based on the object, a manufacturing method of the type mentioned above to improve that in a simple way a defined form of the through the Pol vom formed contact surface is achieved.
  • an iron part 1 of an electromagnet e.g. one Anchor or yoke, represented by a middle leg 2 and has two outer pole leg 3. These each have one Pol requirements 4.
  • the facing away from the back 5 is free form and has a rectangular surface geometry.
  • the iron part 1 is shown in the state in which it by a magnetic clamping device, not shown here in the direction of the back 5 is elastically braced.
  • the pole faces 4 are ground straight, as shown in FIG.
  • the iron part 1 After removal from the jig, the iron part 1 springs back to its original shape according to FIG 3, so that again the rectangular surface geometry of the back of FIG. 1 and at the same time indicated by the pole faces 4 a dashed line concave bearing surface 6 results.
  • the embodiment according to FIG 4, 5 and 6 differs Compared to the above described only in that the back 5 here with a different surface geometry with has a round shape. For the rest, however, by the mentioned manufacturing steps also the result of a reached convex bearing surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnets (AREA)
  • Magnetic Treatment Devices (AREA)
  • Magnetically Actuated Valves (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines Teils eines Elektromagneten mit einem Mittelschenkel und zwei äußeren Polschenkeln, die jeweils eine Polfläche und einen zu dieser abgewandt liegenden Rücken aufweisen.The invention relates to a process for the preparation a part of an electromagnet with a center leg and two outer pole legs, each having a pole face and have a facing away from this back.

Bei bisherigen Herstellverfahren werden die Polflächen der Eisenteile, d.h. des Ankers und des Jochs, möglichst eben geschliffen. Dabei wird die Ebenheit der Rückenauflage beim Schleifen auf der Auflagefläche abgebildet. Aufgrund von Maschinen- und Teiletoleranzen ist dieses Abbild konkav oder konvex. Beim konkaven Abbild kommen die inneren Schenkelseiten nicht zur Auflage, d.h. es entsteht ein Luftspalt, der den Nebenfluss im Magnetsystem schwächt. Dies führt zu einer Verringerung der Haltekraft und einer Erhöhung der Brummneigung der Magnetsysteme.In previous manufacturing process, the pole faces of the Iron parts, i. Anchor and yoke, ground as smooth as possible. The flatness of the backrest is the Loops imaged on the support surface. Due to machine and part tolerances, this image is concave or convex. In the concave image are the inner leg sides not required, i. It creates an air gap, the weakens the tributary in the magnet system. This leads to a Reduction of holding power and increase in the tendency to hum the magnet systems.

Aufgrund dieser fertigungsbedingten Schwankungen ergeben sich erhebliche Mehrkosten, um die unerwünschten Brummgeräusche durch aufwendigere Reparatur abzustellen.Due to these production-related fluctuations arise Significant additional costs to the unwanted humming noises turn off by more expensive repair.

Ein Verfahren gemäß Oberbegriff des Anspruchs 1 ist aus JP- 05 06 2852 A bekannt.A method according to the preamble of claim 1 is known from JP 05 06 2852 A.

Daher liegt der Erfindung die Aufgabe zugrunde, ein Herstellverfahren der oben genannten Art dahingehend zu verbessern, dass auf einfache Weise eine definierte Form der durch die Polflächen gebildeten Auflagefläche erreicht wird.Therefore, the invention is based on the object, a manufacturing method of the type mentioned above to improve that in a simple way a defined form of the through the Polflächen formed contact surface is achieved.

Die Aufgabe wird durch folgende Schritte gelöst:

  • a) der Rücken wird zunächst zumindest teilweise freigeformt,
  • b) dann wird der Elektromagnet durch eine Spannvorrichtung in Richtung des Rückens elastisch verspannt,
  • c) im verspannten Zustand werden die Polflächen überschliffen, so dass der Elektromagnet nach Entnahme aus der Spannvorrichtung eine durch die Polflächen konvex ausgebildete Auflagefläche erhält.
    • The task is solved by the following steps:
  • a) the back is first at least partially free-formed,
  • b) then the electromagnet is elastically clamped by a tensioning device in the direction of the back,
  • c) in the clamped state, the pole faces are ground, so that the electromagnet receives a convex by the pole faces bearing surface after removal from the jig.

    • Eine vorteilhafte Weiterbildung des Verfahrens besteht, wenn die Spannvorrichtung magnetisch betrieben wird.An advantageous development of the method is when the clamping device is magnetically operated.

    Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand einer Zeichnung näher erläutert.An embodiment of the invention will be described below a drawing explained in more detail.

    Es zeigen:

    FIG 1, 2, 3
    die Verfahrensschritte zur Herstellung einer ersten Ausführungsform eines Teils eines Elektromagneten,
    FIG 4, 5, 6
    die Verfahrensschritte zur Herstellung einer zweiten Ausführungsform eines Teils eines Elektromagneten und
    FIG 7
    einen erfindungsgemäß hergestellten Elektromagneten.
    Show it:
    1, 2, 3
    the method steps for producing a first embodiment of a part of an electromagnet,
    4, 5, 6
    the method steps for producing a second embodiment of a part of an electromagnet and
    FIG. 7
    an electromagnet prepared according to the invention.

    In FIG 1 ist ein Eisenteil 1 eines Elektromagneten, z.B. ein Anker oder Joch, dargestellt, das einen Mittelschenkel 2 und zwei äußere Polschenkel 3 aufweist. Diese haben jeweils eine Polfläche 4. Der hierzu abgewandt liegende Rücken 5 ist freigeformt und besitzt eine rechteckige Oberflächengeometrie.In FIG. 1, an iron part 1 of an electromagnet, e.g. one Anchor or yoke, represented by a middle leg 2 and has two outer pole leg 3. These each have one Polfläche 4. The facing away from the back 5 is free form and has a rectangular surface geometry.

    In FIG 2 ist das Eisenteil 1 in dem Zustand gezeigt, in dem es durch eine hier nicht dargestellte magnetische Spannvorrichtung in Richtung des Rückens 5 elastisch verspannt ist. In diesem Zustand werden die Polflächen 4 gerade geschliffen, wie in FIG 2 dargestellt.In FIG 2, the iron part 1 is shown in the state in which it by a magnetic clamping device, not shown here in the direction of the back 5 is elastically braced. In this state, the pole faces 4 are ground straight, as shown in FIG.

    Nach Entnahme aus der Spannvorrichtung federt das Eisenteil 1 in seine Ausgangsform gemäß FIG 3 zurück, so dass sich wieder die rechteckige Oberflächengeometrie des Rückens nach FIG 1 und zugleich durch die Polflächen 4 eine gestrichelt angedeutete konkave Auflagefläche 6 ergibt. After removal from the jig, the iron part 1 springs back to its original shape according to FIG 3, so that again the rectangular surface geometry of the back of FIG. 1 and at the same time indicated by the pole faces 4 a dashed line concave bearing surface 6 results.

    Durch das beschriebene Herstellverfahren wird in gewünschter Weise erreicht, dass die inneren Schenkelseiten der äußeren Polschenkel 3 gegenüber den äußeren Schenkelseiten vorstehen und somit im Betrieb des Elektromagneten zur Auflage kommen. Durch dieses Herstellverfahren ergibt sich auf der Auflagefläche immer eine konvexe Oberflächenform, mit der sichergestellt ist, dass die innere Schenkelseite der äußeren Polschenkel 3 gemäß FIG 7, welche für den Nebenfluss und für die Haltekraft im Phasennulldurchgang der Magnetisierungsspannung eines elektromagnetischen Schaltgerätes verantwortlich ist, zur Auflage kommt. Die Brummerneigung des Magnetsystems wird hierdurch reduziert und die Haltekraft vergrößert. Darüber hinaus können durch dieses Verfahren die Herstelltoleranzen verkleinert und die Formtoleranzen in eine gezielte Linienform gebracht werden (DIN ISO 1001).By the manufacturing method described is in the desired Achieved that the inner leg sides of the outer Polschenkel 3 protrude from the outer leg sides and thus come to rest during operation of the electromagnet. By this manufacturing process results on the support surface always a convex surface shape with which ensured is that the inner leg side of the outer pole leg 3 of FIG 7, which for the tributary and for the Holding force in the phase zero crossing of the magnetizing voltage an electromagnetic switching device is responsible, comes to the edition. The rumble tendency of the magnet system becomes this reduces and increases the holding power. About that In addition, by this method, the manufacturing tolerances reduced and the shape tolerances in a targeted line shape be brought (DIN ISO 1001).

    Das Ausführungsbeispiel gemäß FIG 4, 5 und 6 unterscheidet sich gegenüber dem oben beschriebenen lediglich dadurch, dass der Rücken 5 hier eine abweichende Oberflächengeometrie mit einer runden Form aufweist. Im übrigen wird jedoch durch die genannten Fertigungsschritte ebenfalls das Ergebnis einer konvexen Auflagefläche erreicht.The embodiment according to FIG 4, 5 and 6 differs Compared to the above described only in that the back 5 here with a different surface geometry with has a round shape. For the rest, however, by the mentioned manufacturing steps also the result of a reached convex bearing surface.

    Claims (2)

    1. Method for producing a part (1) of an electromagnet, e.g. an armature or yoke, with a central shank (2) and two outer pole shanks (3), each of which has a pole face (4) and a rear (5) facing away therefrom, characterised by the following steps:
      a) the rear (5) is first at least partially freely formed,
      b) the part (1) is then braced elastically in the direction of the rear (5) by means of a clamping device and
      c) in the braced state the pole faces (4) are ground true so that after removal from the clamping device the part (1) has a contact surface configured in a convex fashion by the pole faces (4).
    2. Method according to Claim 1,
      characterised in that the clamping device is operated magnetically.
    EP03739372A 2002-02-15 2003-01-31 Method for producing the surface geometry of solenoids Expired - Lifetime EP1474815B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE10206391A DE10206391B4 (en) 2002-02-15 2002-02-15 Manufacturing process of the surface geometry of electromagnets
    DE10206391 2002-02-15
    PCT/DE2003/000279 WO2003069641A1 (en) 2002-02-15 2003-01-31 Method for producing the surface geometry of solenoids

    Publications (2)

    Publication Number Publication Date
    EP1474815A1 EP1474815A1 (en) 2004-11-10
    EP1474815B1 true EP1474815B1 (en) 2005-08-10

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    ID=27674681

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03739372A Expired - Lifetime EP1474815B1 (en) 2002-02-15 2003-01-31 Method for producing the surface geometry of solenoids

    Country Status (6)

    Country Link
    US (1) US7328498B2 (en)
    EP (1) EP1474815B1 (en)
    CN (1) CN1291429C (en)
    DE (2) DE10206391B4 (en)
    HK (1) HK1075324A1 (en)
    WO (1) WO2003069641A1 (en)

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102005030376B4 (en) * 2005-06-29 2009-03-26 Siemens Ag Manufacturing method for a contact surface in an electromagnet and electromagnet

    Family Cites Families (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US2293951A (en) * 1939-09-20 1942-08-25 Westinghouse Electric & Mfg Co Induction apparatus and method of core construction therefor
    FR2566571B1 (en) * 1984-06-25 1986-09-26 Telemecanique Electrique SURGE SUPPRESSOR DEVICE FOR ELECTROMAGNET AND ELECTROMAGNET EQUIPPED WITH SUCH A DEVICE
    US4752707A (en) * 1986-02-06 1988-06-21 Morrill Wayne J Three-phase, one-third pitch motor
    US4899121A (en) * 1989-05-01 1990-02-06 Westinghouse Electric Corp. Alternating current electromagnet
    JPH0562852A (en) * 1991-09-04 1993-03-12 Fuji Elelctrochem Co Ltd Manufacture of deformed e-shaped ferrite core
    US5407745A (en) * 1994-05-25 1995-04-18 E. I. Du Pont De Nemours And Company Delustered nylon filaments with striations of polymethylpentene
    DE29514508U1 (en) * 1995-09-09 1995-11-02 Vacuumschmelze Gmbh, 63450 Hanau Sheet package for magnetic cores for use in inductive components with a longitudinal opening

    Also Published As

    Publication number Publication date
    HK1075324A1 (en) 2005-12-09
    CN1625791A (en) 2005-06-08
    US7328498B2 (en) 2008-02-12
    CN1291429C (en) 2006-12-20
    DE50300957D1 (en) 2005-09-15
    DE10206391A1 (en) 2003-09-04
    DE10206391B4 (en) 2004-02-12
    US20050086796A1 (en) 2005-04-28
    EP1474815A1 (en) 2004-11-10
    WO2003069641A1 (en) 2003-08-21

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