FI812017L - MAGNETIC SKIVKRETS MED FAST MELLANDEL OCH REGLERINGSFOERFARANDE FOER DENNA MELLANDEL - Google Patents

MAGNETIC SKIVKRETS MED FAST MELLANDEL OCH REGLERINGSFOERFARANDE FOER DENNA MELLANDEL

Info

Publication number
FI812017L
FI812017L FI812017A FI812017A FI812017L FI 812017 L FI812017 L FI 812017L FI 812017 A FI812017 A FI 812017A FI 812017 A FI812017 A FI 812017A FI 812017 L FI812017 L FI 812017L
Authority
FI
Finland
Prior art keywords
mellandel
skivkrets
regleringsfoerfarande
och
magnetic
Prior art date
Application number
FI812017A
Other languages
Finnish (fi)
Other versions
FI75446C (en
FI75446B (en
Inventor
Gilles Desombre
Marc Dujardin
Gerard Haroux
Original Assignee
Clarel Sa
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 Clarel Sa filed Critical Clarel Sa
Publication of FI812017L publication Critical patent/FI812017L/en
Application granted granted Critical
Publication of FI75446B publication Critical patent/FI75446B/en
Publication of FI75446C publication Critical patent/FI75446C/en

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
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Composite Materials (AREA)
  • Chemical & Material Sciences (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Paper (AREA)
  • Magnetic Heads (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Control Of Electric Motors In General (AREA)
  • Magnetic Treatment Devices (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Magnetically Actuated Valves (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Traffic Control Systems (AREA)
  • Electron Tubes For Measurement (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

1. Laminated magnetic circuit with air gap, comprising and E-shaped part and an I-shaped part (4), and wherein the lenght of the end bars (2) of the E part determines the depth of the air gap opposite the central bar (3) of this E part, characterized in that the side of the I part (4) which rests on the end bars (2) of the E part forms an obtuse angle (alpha) wiht the sides at the end of the part I part (4), and in that the two end bars (2) of the E part each have a prolongation (5) and these are arranged at a distance from one another corresponding to the lenght of the I part (4), so as to fit the shape of the said obtuse angle (alpha) in engaging about the I part (4).
FI812017A 1980-06-30 1981-06-26 Magnetic disc circuit with fixed air gap and control method for the air gap. FI75446C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP80400979 1980-06-30
EP80400979A EP0042898B1 (en) 1980-06-30 1980-06-30 Laminated magnetic circuit with air gap, and method of adjusting the air gap

Publications (3)

Publication Number Publication Date
FI812017L true FI812017L (en) 1981-12-31
FI75446B FI75446B (en) 1988-02-29
FI75446C FI75446C (en) 1988-06-09

Family

ID=8187379

Family Applications (1)

Application Number Title Priority Date Filing Date
FI812017A FI75446C (en) 1980-06-30 1981-06-26 Magnetic disc circuit with fixed air gap and control method for the air gap.

Country Status (10)

Country Link
EP (1) EP0042898B1 (en)
AT (1) ATE9749T1 (en)
DE (1) DE3069353D1 (en)
DK (1) DK244581A (en)
ES (1) ES272474Y (en)
FI (1) FI75446C (en)
GR (1) GR74360B (en)
IE (1) IE51834B1 (en)
NO (1) NO812219L (en)
PT (1) PT73282B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480377A (en) * 1982-09-27 1984-11-06 General Motors Corporation Method of making an ignition coil core
DE19645098C2 (en) * 1996-11-01 2000-09-21 Vossloh Schwabe Gmbh Choke and process for its manufacture

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1054551A (en) * 1954-02-11
FR942323A (en) * 1941-01-28 1949-02-04 Thomson Houston Comp Francaise Improvements in the construction of magnetic cores
US3071744A (en) * 1954-12-14 1963-01-01 Advance Transformer Co Electromagnetic core construction
US3219957A (en) * 1957-12-03 1965-11-23 Advance Transformer Co Core for electromagnetic device
DE1638944A1 (en) * 1967-02-09 1970-05-14 Waasner B Core sheet with two sheet metal parts
DE1613628A1 (en) * 1967-03-20 1970-07-30 Blum Eisen & Metallind Two-part iron core, especially for transformers
DE1929566A1 (en) * 1968-06-27 1970-06-18 Idec Izumi Corp Transformer core and process for its manufacture
GB1345523A (en) * 1970-09-10 1974-01-30 Friedland Ltd V E Doggart J Sk Transformer laminations

Also Published As

Publication number Publication date
FI75446C (en) 1988-06-09
IE811423L (en) 1981-12-30
ES272474Y (en) 1984-10-01
DK244581A (en) 1981-12-31
ATE9749T1 (en) 1984-10-15
DE3069353D1 (en) 1984-11-08
NO812219L (en) 1982-01-04
PT73282A (en) 1981-07-01
PT73282B (en) 1982-07-01
GR74360B (en) 1984-06-27
ES272474U (en) 1984-03-01
EP0042898B1 (en) 1984-10-03
EP0042898A1 (en) 1982-01-06
FI75446B (en) 1988-02-29
IE51834B1 (en) 1987-04-15

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: CLAREL