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GB1328160A - Transformers or chokes - Google Patents

Transformers or chokes

Info

Publication number
GB1328160A
GB1328160A GB5791870A GB5791870A GB1328160A GB 1328160 A GB1328160 A GB 1328160A GB 5791870 A GB5791870 A GB 5791870A GB 5791870 A GB5791870 A GB 5791870A GB 1328160 A GB1328160 A GB 1328160A
Authority
GB
United Kingdom
Prior art keywords
core portion
winding
windings
dec
transformer
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
GB5791870A
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.)
ZUMTOBEL W
Original Assignee
ZUMTOBEL W
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 ZUMTOBEL W filed Critical ZUMTOBEL W
Publication of GB1328160A publication Critical patent/GB1328160A/en
Expired legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Catching Or Destruction (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

1328160 Transformers and inductors W ZUMTOBEL 7 Dec 1970 [9 Dec 1969] 57918/70 Heading H1T A transformer or choke comprises a laminated core portion 1 carrying at least one winding 2 and a laminated yoke portion 3 comprising two U-shaped yoke members 3 which at least partially surround the winding, the length L of the core portion between extreme ends of the winding or windings being substantially equal to the width B of the core portion in the region or regions in which the core portion is wound and the U-shaped yoke members each having an inside surface on an arm thereof which abuts an end surface of the core portion. A large number of different arrangements similar to that shown in Fig. 1 are described together with details of how the laminations may be stamped from a sheet of material with very little wastage. Fig. 16 shows an embodiment in which the transformer or choke has two windings. Specification 1,312,495 is referred to.
GB5791870A 1969-12-09 1970-12-07 Transformers or chokes Expired GB1328160A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1141569A AT311485B (en) 1969-12-09 1969-12-09 Transformer or induction coil with iron core

Publications (1)

Publication Number Publication Date
GB1328160A true GB1328160A (en) 1973-08-30

Family

ID=3628582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5791870A Expired GB1328160A (en) 1969-12-09 1970-12-07 Transformers or chokes

Country Status (11)

Country Link
AT (1) AT311485B (en)
CH (1) CH524232A (en)
DE (1) DE2058779C2 (en)
ES (1) ES198355Y (en)
FI (1) FI54985C (en)
FR (1) FR2070783B1 (en)
GB (1) GB1328160A (en)
NL (1) NL7016858A (en)
NO (1) NO128886B (en)
SE (1) SE383060B (en)
ZA (1) ZA708278B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711019A (en) * 1985-03-26 1987-12-08 Schwabe Gmbh Method of making core laminations, and punch die for carrying out the method
DE4139003A1 (en) * 1991-11-27 1993-06-03 May & Christe Gmbh MAGNETIC CORE IN THE SHELL DESIGN OF A THROTTLE OR TRANSFORMER, LAYERED FROM C AND I-SHAPED CORE SHEETS
EP0580131A2 (en) * 1992-07-20 1994-01-26 Knobel Ag Lichttechnische Komponenten Methof for making a choke or a transformer with E-shaped core laminations formed of two U-shaped laminations
ES2076859A2 (en) * 1993-04-23 1995-11-01 Luminotecnicas Especial Improvements in the punching of E-shaped and I-shaped core plates.

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT323282B (en) * 1973-06-14 1975-07-10 Zumtobel Walter TRANSFORMER OR THROTTLE
FR2354619A1 (en) * 1976-06-10 1978-01-06 Banet H Fabrication method for transformer laminations - minimises cutting wastage and gives laminations which are butt fitted
FI57192C (en) * 1976-10-11 1980-06-10 Helvar Oy JAERNKAERNA FOER DROSSELANORDNING ELLER TRANSFORMATOR
EP0028494B1 (en) * 1979-11-02 1984-06-20 Linton And Hirst Limited Method for forming laminations for transformer cores
FR2494026A2 (en) * 1980-11-12 1982-05-14 Marchal Equip Auto Air gaps setting method for automobile induction coil cores - uses non-magnetic spacer with pairs of orthogonal flanges to fully interlock yoke and U-core
DE3402036C1 (en) * 1984-01-21 1985-07-11 Schwabe GmbH & Co KG Elektrotechnische Fabrik, 7067 Urbach Process for the production of E-shaped core sheets and I-shaped back yoke sheets of a choke or a transformer, in particular for gas discharge lamps
DE4228642A1 (en) * 1992-08-28 1994-03-03 Tridonic Bauelemente Gmbh Dorn Choke impedance adjustment method

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR963429A (en) * 1950-07-10
DE218916C (en) *
US1698634A (en) * 1928-01-24 1929-01-08 Gen Electric Electrical induction apparatus
US2305686A (en) * 1938-12-09 1942-12-22 Western Electric Co Electromagnetic core
US2235425A (en) * 1938-12-09 1941-03-18 Western Electric Co Electromagnetic core
US2560224A (en) * 1948-12-31 1951-07-10 Gen Electric Laminated magnetic core
FR60546E (en) * 1949-12-22 1954-11-09 Lampes Sa Improvements in the manufacture of ballast windings
DE1028687B (en) * 1953-03-21 1958-04-24 Plathner Ernst Transformatoren Inductive ballast for low voltage fluorescent lamps
US3201731A (en) * 1962-11-27 1965-08-17 Electro Netic Steel Inc Transformer core and lamination therefor
DE1563242A1 (en) * 1966-08-23 1969-11-27 Licentia Gmbh Ballast for fluorescent lamps
DE1613628A1 (en) * 1967-03-20 1970-07-30 Blum Eisen & Metallind Two-part iron core, especially for transformers
DE1638339A1 (en) * 1967-07-01 1970-06-18 Knobel Dubs Fritz Magnetic core
FR1560537A (en) * 1968-01-15 1969-03-21

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711019A (en) * 1985-03-26 1987-12-08 Schwabe Gmbh Method of making core laminations, and punch die for carrying out the method
AU585960B2 (en) * 1985-03-26 1989-06-29 Vossloh Schwabe Gmbh Method of making core laminations and punch die for carrying out the method
DE4139003A1 (en) * 1991-11-27 1993-06-03 May & Christe Gmbh MAGNETIC CORE IN THE SHELL DESIGN OF A THROTTLE OR TRANSFORMER, LAYERED FROM C AND I-SHAPED CORE SHEETS
EP0580131A2 (en) * 1992-07-20 1994-01-26 Knobel Ag Lichttechnische Komponenten Methof for making a choke or a transformer with E-shaped core laminations formed of two U-shaped laminations
EP0580131A3 (en) * 1992-07-20 1994-03-23 Knobel Lichttech
ES2076859A2 (en) * 1993-04-23 1995-11-01 Luminotecnicas Especial Improvements in the punching of E-shaped and I-shaped core plates.

Also Published As

Publication number Publication date
FI54985B (en) 1978-12-29
FR2070783B1 (en) 1976-05-28
AT311485B (en) 1973-11-26
ES198355Y (en) 1975-11-01
DE2058779A1 (en) 1971-06-09
FR2070783A1 (en) 1971-09-17
SE383060B (en) 1976-02-23
NL7016858A (en) 1971-06-11
FI54985C (en) 1979-04-10
CH524232A (en) 1972-06-15
NO128886B (en) 1974-01-21
ES198355U (en) 1975-06-01
ZA708278B (en) 1971-08-25
DE2058779C2 (en) 1982-10-07

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Legal Events

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