EP0890962A2 - Electro-aimant à courant alternatif à faibles pertes de puissance - Google Patents

Electro-aimant à courant alternatif à faibles pertes de puissance Download PDF

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Publication number
EP0890962A2
EP0890962A2 EP98111914A EP98111914A EP0890962A2 EP 0890962 A2 EP0890962 A2 EP 0890962A2 EP 98111914 A EP98111914 A EP 98111914A EP 98111914 A EP98111914 A EP 98111914A EP 0890962 A2 EP0890962 A2 EP 0890962A2
Authority
EP
European Patent Office
Prior art keywords
rivets
laminations
magnet
power loss
electromagnet
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.)
Withdrawn
Application number
EP98111914A
Other languages
German (de)
English (en)
Other versions
EP0890962A3 (fr
Inventor
Markus Dipl.-Ing. Kropp (Fh)
Heinz Seidenbusch
Gerhard Dipl.-Ing. Wössner (FH)
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
Original Assignee
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 EP0890962A2 publication Critical patent/EP0890962A2/fr
Publication of EP0890962A3 publication Critical patent/EP0890962A3/fr
Withdrawn legal-status Critical Current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
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/10—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current

Definitions

  • the invention relates to an AC magnet a laminated core made up of layered individual sheets that oppose each other are isolated and caulked by several rivets are.
  • a generic alternating current magnet is found, for example in shooters for a long time.
  • 2 shows the side view a stack of sheets made of layered single sheets, that are isolated from each other.
  • the sheet pack is through several steel rivets caulked.
  • the structure described is aimed on minimizing eddy current losses.
  • the steel rivets make up a significant part of the power loss of the magnet system causes what follows Reasons.
  • To have sufficient mechanical strength achieve an intimate, mechanical connection between the rivets and the laminated core can be achieved. This leads the contact points to undesirably low-resistance connections between the rivets and the sheets.
  • FIG 3 represents.
  • the insulation described above the iron sheet is bridged and ineffective. Between the iron sheets and the rivets can have eddy currents flow that warm the magnet system.
  • the invention has for its object an AC magnet of the above type with the lowest possible power loss to accomplish.
  • AC magnets are used in electromagnetic Drives used by shooters.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Treatment Devices (AREA)
EP98111914A 1997-07-10 1998-06-26 Electro-aimant à courant alternatif à faibles pertes de puissance Withdrawn EP0890962A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29712178U 1997-07-10
DE29712178U DE29712178U1 (de) 1997-07-10 1997-07-10 Wechselstrommagnet mit niedriger Verlustleistung

Publications (2)

Publication Number Publication Date
EP0890962A2 true EP0890962A2 (fr) 1999-01-13
EP0890962A3 EP0890962A3 (fr) 1999-10-13

Family

ID=8042926

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98111914A Withdrawn EP0890962A3 (fr) 1997-07-10 1998-06-26 Electro-aimant à courant alternatif à faibles pertes de puissance

Country Status (2)

Country Link
EP (1) EP0890962A3 (fr)
DE (1) DE29712178U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29807951U1 (de) 1998-05-04 1998-07-23 Siemens AG, 80333 München Wechselstrommagnet mit Kurzschlußring
DE102006019206B4 (de) * 2006-04-21 2009-04-09 Windhorst Beteiligungsgesellschaft Mbh Verfahren, Anordnung und Spritzgusswerkzeug zum Verbinden eines thermoplastischen Magnetwerkstoffs mit einem nicht-magnetischen Trägerstoff
DE102012110332A1 (de) * 2012-10-29 2014-04-30 Michael Riedel Transformatorenbau Gmbh Induktivität sowie Herstellungsverfahren hierfür

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1260627A (en) * 1967-02-02 1972-01-19 Christian Burkert Improvements in or relating to electromagnetic systems
FR2665021A1 (fr) * 1990-07-20 1992-01-24 Telemecanique Appareil contacteur ayant un electro-aimant dont les pieces fixe et mobile sont surmoulees par un revetement.
JPH05316699A (ja) * 1992-05-08 1993-11-26 Hitachi Koki Co Ltd かご形回転子の製造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997550A (en) * 1934-05-16 1935-04-09 Lucy B O Leary Laminated core for electrical apparatus
DE920024C (de) * 1952-05-18 1954-11-11 Licentia Gmbh Verfahren zur Kunststoff-Spritznietung lamellierter Blechpakete von elektrischen Maschinen und Geraeten
DE1639210A1 (de) * 1968-02-28 1971-01-28 Bosch Gmbh Robert Wechselstrommagnet,insbesondere zur Betaetigung von Hydraulikventilen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1260627A (en) * 1967-02-02 1972-01-19 Christian Burkert Improvements in or relating to electromagnetic systems
FR2665021A1 (fr) * 1990-07-20 1992-01-24 Telemecanique Appareil contacteur ayant un electro-aimant dont les pieces fixe et mobile sont surmoulees par un revetement.
JPH05316699A (ja) * 1992-05-08 1993-11-26 Hitachi Koki Co Ltd かご形回転子の製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 137 (E-1518), 7. März 1994 (1994-03-07) & JP 05 316699 A (HITACHI KOKI CO LTD), 26. November 1993 (1993-11-26) *

Also Published As

Publication number Publication date
EP0890962A3 (fr) 1999-10-13
DE29712178U1 (de) 1997-09-18

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