GB1588765A - Iron cores for electrical chokes or transformers - Google Patents

Iron cores for electrical chokes or transformers Download PDF

Info

Publication number
GB1588765A
GB1588765A GB42050/77A GB4205077A GB1588765A GB 1588765 A GB1588765 A GB 1588765A GB 42050/77 A GB42050/77 A GB 42050/77A GB 4205077 A GB4205077 A GB 4205077A GB 1588765 A GB1588765 A GB 1588765A
Authority
GB
United Kingdom
Prior art keywords
shaped plates
plates
stacks
stack
core
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
Application number
GB42050/77A
Other languages
English (en)
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.)
Helvar Oy AB
Original Assignee
Helvar Oy AB
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 Helvar Oy AB filed Critical Helvar Oy AB
Publication of GB1588765A publication Critical patent/GB1588765A/en
Expired legal-status Critical Current

Links

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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Soft Magnetic Materials (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
GB42050/77A 1976-10-11 1977-10-10 Iron cores for electrical chokes or transformers Expired GB1588765A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI762891A FI57192C (fi) 1976-10-11 1976-10-11 Jaernkaerna foer drosselanordning eller transformator

Publications (1)

Publication Number Publication Date
GB1588765A true GB1588765A (en) 1981-04-29

Family

ID=8510328

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42050/77A Expired GB1588765A (en) 1976-10-11 1977-10-10 Iron cores for electrical chokes or transformers

Country Status (8)

Country Link
DE (1) DE2745701C2 (fr)
FI (1) FI57192C (fr)
FR (1) FR2367340A1 (fr)
GB (1) GB1588765A (fr)
NO (1) NO148466C (fr)
PL (1) PL114511B1 (fr)
SE (1) SE421362B (fr)
SU (1) SU745390A3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017368A1 (de) * 1980-05-07 1981-11-12 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Zeilentransformator fuer einen fernsehempfaenger
DE3510854A1 (de) * 1985-03-26 1986-10-02 Schwabe GmbH & Co KG Elektrotechnische Fabrik, 7068 Urbach Verfahren zur herstellung u-foermiger kernbleche und zwischen deren schenkel passender t-foermiger rueckschlussbleche einer drossel oder eines transformators, insbesondere fuer gasentladungslampen
EP0571242A1 (fr) * 1992-05-21 1993-11-24 Acec Ballasts Circuit magnétique à entrefer, en particulier pour ballasts pour lampes à décharge, et son procédé de fabrication

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE159059C (fr) *
GB128118A (en) * 1918-11-13 1919-06-19 Ralph Crosbie-Hill Improvements relating to Electric Transformers.
US1783050A (en) * 1930-04-22 1930-11-25 Gen Electric Magnetic core
US3132285A (en) * 1957-03-22 1964-05-05 Jefferson Electric Co Transformer ballast assembly for energizing gas discharge devices
GB878573A (en) * 1958-09-10 1961-10-04 Gen Electric Co Ltd Improvements in or relating to the production of magnetic core laminations
FR1218773A (fr) * 1959-03-11 1960-05-12 Normacem Sa Circuit magnétique pour transformateur
US3153961A (en) * 1963-06-20 1964-10-27 Advance Transformer Co Method of producing transformer core laminations from strip stock
DE1613628A1 (de) * 1967-03-20 1970-07-30 Blum Eisen & Metallind Zweiteiliger Eisenkern,insbesondere fuer Transformatoren
AT311485B (de) * 1969-12-09 1973-11-26 Zumtobel Walter Transformator oder Induktionsspule mit Eisenkern
AT304691B (de) * 1969-12-09 1973-01-25 Zumtobel Walter Transformator oder Induktionsspule
AT304692B (de) * 1969-12-29 1973-01-25 Zumtobel Walter Eisenpaket oder Kern, vorzugsweise aus geschichteten Lamellen
SE363924B (fr) * 1970-08-27 1974-02-04 Licentia Gmbh
DE2106900A1 (de) * 1971-02-13 1972-08-24 Siemens Ag Elektrische Drosselspule für den Betrieb von Gasentladungslampen
FR2173689B1 (fr) * 1972-02-28 1975-06-13 Cetek Const Electrotech
DE2309727C3 (de) * 1973-02-27 1979-05-03 Fa. Hermann Schwabe, 7067 Urbach Verfahren zur Herstellung von insbesondere als Vorschaltgerät für Gasentladungslampen zu verwendende Drosseln oder Transformatoren
GB1464798A (en) * 1973-08-20 1977-02-16 Zumtobel W Transformer or choke with an iron body

Also Published As

Publication number Publication date
FR2367340A1 (fr) 1978-05-05
FI57192B (fi) 1980-02-29
NO148466C (no) 1983-10-12
SE421362B (sv) 1981-12-14
FI57192C (fi) 1980-06-10
DE2745701A1 (de) 1978-04-13
DE2745701C2 (de) 1986-07-31
NO148466B (no) 1983-07-04
FI762891A (fi) 1978-04-12
SE7711335L (sv) 1978-04-12
PL201439A1 (pl) 1978-04-24
SU745390A3 (ru) 1980-06-30
FR2367340B1 (fr) 1984-02-24
PL114511B1 (en) 1981-02-28
NO773445L (no) 1978-04-12

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19971009