JPS57120314A - Manufacture of doughnut type coil - Google Patents

Manufacture of doughnut type coil

Info

Publication number
JPS57120314A
JPS57120314A JP574181A JP574181A JPS57120314A JP S57120314 A JPS57120314 A JP S57120314A JP 574181 A JP574181 A JP 574181A JP 574181 A JP574181 A JP 574181A JP S57120314 A JPS57120314 A JP S57120314A
Authority
JP
Japan
Prior art keywords
coil
core
doughnut type
wire
productivity
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.)
Pending
Application number
JP574181A
Other languages
Japanese (ja)
Inventor
Osao Kamata
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP574181A priority Critical patent/JPS57120314A/en
Publication of JPS57120314A publication Critical patent/JPS57120314A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F17/062—Toroidal core with turns of coil around it

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

PURPOSE:To enhance the productivity of a doughnut type coil and to improve the quality of the coil by winding an insulated wire in the prescribed number of turns on the outer periphery of linear magnetic core of the prescribed length, and bonding annularly both ends of the magnetic cores, thereby facilitating the mechanizing steps. CONSTITUTION:An insulated wire 2 is wound in the prescribed number of turns on a linear magnetic coil 1 having flexibility, and the wire 2 is bonded by welding at the bonded part 3 of both ends of the core 1 thus wound with the coil. The flexible linear core 1 is used, thereby enabling the use of an automatic wire winding machine. Thus, the formation of a doughnut type closed magnetic path is facilitated with a simple work, thereby enhancing the productivity of the coil and the quality of the coil is improved.
JP574181A 1981-01-17 1981-01-17 Manufacture of doughnut type coil Pending JPS57120314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP574181A JPS57120314A (en) 1981-01-17 1981-01-17 Manufacture of doughnut type coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP574181A JPS57120314A (en) 1981-01-17 1981-01-17 Manufacture of doughnut type coil

Publications (1)

Publication Number Publication Date
JPS57120314A true JPS57120314A (en) 1982-07-27

Family

ID=11619521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP574181A Pending JPS57120314A (en) 1981-01-17 1981-01-17 Manufacture of doughnut type coil

Country Status (1)

Country Link
JP (1) JPS57120314A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2716291A1 (en) * 1994-02-16 1995-08-18 Mecagis Method of manufacturing a coil on a toroidal magnetic circuit.
WO2000005786A3 (en) * 1998-07-22 2002-08-22 Koninkl Philips Electronics Nv Power cord provided with a power cord transformer
US6640419B2 (en) 1999-06-04 2003-11-04 Liaisons Electroniques-Mecaniques Lem S.A. Method of making a magnetic circuit with coil
FR2864687A1 (en) * 2003-12-23 2005-07-01 Gen Electric CURRENT TRANSFORMERS FOR DETECTING PARTIAL DISCHARGES ON CABLES AND WIRES IN AIRCRAFT

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2716291A1 (en) * 1994-02-16 1995-08-18 Mecagis Method of manufacturing a coil on a toroidal magnetic circuit.
EP0668596A1 (en) * 1994-02-16 1995-08-23 Mecagis Method of making a bobbin on a toroidal magnetic circuit
US5583475A (en) * 1994-02-16 1996-12-10 Mecagis Method of manufacturing a coil on a toroidal magnetic circuit
WO2000005786A3 (en) * 1998-07-22 2002-08-22 Koninkl Philips Electronics Nv Power cord provided with a power cord transformer
US6640419B2 (en) 1999-06-04 2003-11-04 Liaisons Electroniques-Mecaniques Lem S.A. Method of making a magnetic circuit with coil
US6987439B2 (en) 1999-06-04 2006-01-17 Liaisons Electroniques-Mecaniques Lem Sa Magnetic circuit with coil
FR2864687A1 (en) * 2003-12-23 2005-07-01 Gen Electric CURRENT TRANSFORMERS FOR DETECTING PARTIAL DISCHARGES ON CABLES AND WIRES IN AIRCRAFT
US7145345B2 (en) 2003-12-23 2006-12-05 General Electric Company Current transformers for partial discharge detection on aircraft cables and wires

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