EP0065612A2 - Formation de tôles de noyau en circuits magnétiques - Google Patents

Formation de tôles de noyau en circuits magnétiques Download PDF

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Publication number
EP0065612A2
EP0065612A2 EP82100009A EP82100009A EP0065612A2 EP 0065612 A2 EP0065612 A2 EP 0065612A2 EP 82100009 A EP82100009 A EP 82100009A EP 82100009 A EP82100009 A EP 82100009A EP 0065612 A2 EP0065612 A2 EP 0065612A2
Authority
EP
European Patent Office
Prior art keywords
core
core sheet
magnetic circuits
parts
magnetic
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.)
Granted
Application number
EP82100009A
Other languages
German (de)
English (en)
Other versions
EP0065612B1 (fr
EP0065612A3 (en
Inventor
Ferenc Dipl.-Ing. Kocsis
Endre Dipl.-Ing. László
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.)
HIRADASTECHNIKAI ANYAGOK GYARA
Original Assignee
HIRADASTECHNIKAI ANYAGOK GYARA
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 HIRADASTECHNIKAI ANYAGOK GYARA filed Critical HIRADASTECHNIKAI ANYAGOK GYARA
Priority to AT82100009T priority Critical patent/ATE16432T1/de
Publication of EP0065612A2 publication Critical patent/EP0065612A2/fr
Publication of EP0065612A3 publication Critical patent/EP0065612A3/de
Application granted granted Critical
Publication of EP0065612B1 publication Critical patent/EP0065612B1/fr
Expired 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • 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

Definitions

  • the invention relates to the design of core sheets, in particular to the design of iron cores for single and three-phase transformers, magnetic windings and lighting chokes.
  • EI and M core sheets are mainly used in the manufacture of transformers to manufacture the iron cores.
  • the iron cores are made of 1-sheet metal by overlapping or the I-sheet metal packs are attached by welding.
  • the core sheet is cut out of a valuable raw material, creating a significant amount of waste.
  • the other point of view is that in the magnetic circles formed from the core sheets, from the point of view of the conduction of the magnetic induction lines, the iron cores are not used accordingly, i.e. unnecessary material parts are included.
  • a method for cutting out the core sheets is known from the Hungarian patent specification HU-PS 174 852, in which no waste is produced; the disadvantage of the method, however, is that the core sheet contains unnecessary material parts from the point of view of guiding the magnetic induction lines.
  • the object of the invention was to design such core sheets, in the cutting of which there is no waste, the line of the magnetic induction lines approximates the ideal shape, as a result of which substantial savings can be achieved.
  • Another objective is to design cutting tools that are suitable for cutting out core sheets with a contour consisting of straight pieces, thereby simplifying machining.
  • the dashed area is superfluous when the single-phase transformer is designed with the EI core sheet.
  • FIG. 2 Comparing the constructions EI cut out without waste according to FIG. 1 - assuming the same proportions - an area of 16.7% can be saved.
  • the entire magnetic circuit is constructed from three different, five core sheet metal units.
  • the magnetic circuit is assembled in the usual way, waste-free, from the sheets I, the material requirement
  • the area of the superfluous dashed part is so could be spared.
  • the elements of the magnetic circuit according to the invention can be cut out from the strip designs according to FIGS. 7 to 9, the magnetic circuit consisting of the two stretched M halves 4, two isosceles trapezoids 5 and the I plate 6 - i. consists of a total of five units.
  • the proposed core sheets and magnetic circuits can be manufactured in dimensional ratios that move between wide limits, as a result of which the core sheet basic dimensions specified in the relevant Hungarian and DIN standards can be adhered to. This fact is important in terms of the interchangeable components as well as the import and export of the transformers.
  • the disadvantage of the proposed solution is that the magnetic circuit is composed of five pieces. Getting together is technologically more difficult than with assembly using traditional core sheet forms, but the problem can be easily solved by designing appropriate templates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Electromagnets (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Magnetic Treatment Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP82100009A 1981-05-22 1982-01-04 Formation de tôles de noyau en circuits magnétiques Expired EP0065612B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82100009T ATE16432T1 (de) 1981-05-22 1982-01-04 Gestaltung von kernblechen zu magnetischen kreisen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU811515A HU186411B (en) 1981-05-22 1981-05-22 Plate of laminated core for magnetic circuits
HU151581 1981-05-22

Publications (3)

Publication Number Publication Date
EP0065612A2 true EP0065612A2 (fr) 1982-12-01
EP0065612A3 EP0065612A3 (en) 1983-03-16
EP0065612B1 EP0065612B1 (fr) 1985-11-06

Family

ID=10954828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100009A Expired EP0065612B1 (fr) 1981-05-22 1982-01-04 Formation de tôles de noyau en circuits magnétiques

Country Status (5)

Country Link
EP (1) EP0065612B1 (fr)
AT (1) ATE16432T1 (fr)
DE (1) DE3267201D1 (fr)
FI (1) FI70488C (fr)
HU (1) HU186411B (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE847622C (de) * 1946-07-09 1952-08-25 Westinghouse Electric Corp Elektrisches Geraet, insbesondere Transformator
DE965344C (de) * 1941-01-28 1957-06-06 Aeg Magnetischen Zwecken dienender Eisenkern
DE1037592B (de) * 1952-10-21 1958-08-28 Siemens Ag Elektrische Drossel zum Betrieb von Leuchtstofflampen
DD105346A1 (fr) * 1972-02-28 1974-04-12
CH572266A5 (fr) * 1973-06-14 1976-01-30 Zumtobel Walter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE965344C (de) * 1941-01-28 1957-06-06 Aeg Magnetischen Zwecken dienender Eisenkern
DE847622C (de) * 1946-07-09 1952-08-25 Westinghouse Electric Corp Elektrisches Geraet, insbesondere Transformator
DE1037592B (de) * 1952-10-21 1958-08-28 Siemens Ag Elektrische Drossel zum Betrieb von Leuchtstofflampen
DD105346A1 (fr) * 1972-02-28 1974-04-12
CH572266A5 (fr) * 1973-06-14 1976-01-30 Zumtobel Walter

Also Published As

Publication number Publication date
EP0065612B1 (fr) 1985-11-06
FI70488C (fi) 1986-09-19
EP0065612A3 (en) 1983-03-16
DE3267201D1 (en) 1985-12-12
ATE16432T1 (de) 1985-11-15
FI70488B (fi) 1986-03-27
FI821751A0 (fi) 1982-05-18
HU186411B (en) 1985-07-29

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