JPS57128014A - Manufacture of coil - Google Patents

Manufacture of coil

Info

Publication number
JPS57128014A
JPS57128014A JP1345781A JP1345781A JPS57128014A JP S57128014 A JPS57128014 A JP S57128014A JP 1345781 A JP1345781 A JP 1345781A JP 1345781 A JP1345781 A JP 1345781A JP S57128014 A JPS57128014 A JP S57128014A
Authority
JP
Japan
Prior art keywords
coil
magnetic path
recess
magnetic
compression molding
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
JP1345781A
Other languages
Japanese (ja)
Inventor
Kiyoshi Horiuchi
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.)
SUMIDA DENKI KK
Sumida Corp
Original Assignee
SUMIDA DENKI KK
Sumida Electric Co 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 SUMIDA DENKI KK, Sumida Electric Co Ltd filed Critical SUMIDA DENKI KK
Priority to JP1345781A priority Critical patent/JPS57128014A/en
Publication of JPS57128014A publication Critical patent/JPS57128014A/en
Pending 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulating Of Coils (AREA)

Abstract

PURPOSE:To efficiently from a closed magnetic path by compression molding an entire hollow coil with soft magnetic powder such as carbonyl or the like and compression molding the entire coil or an open magnetic path part wound on an open magnetic path type soft magnetic iron core. CONSTITUTION:A bobbinless coil 1 having a hollow part is first manufactured. Then, compression molding middle and lower dies 3, 4 are associated to form a recess, the coil 1 is contained in the recess, and suitable amount of soft magnetic material powder 2 such as carbonyl or the like is simultaneously contained in the recess. Subsequently, an upper die 5 is inserted into the recess, and the mold is compression molded with an adequate pressure. A coil is wound on a part of the core having an open magnetic path, the open magnetic part is molded with the dies in the same manner as above to form a closed magnetic path circuit. In this manner, it is not necessary to inefficiently wind manually the coil in case of forming the closed magnetic path magnetic core, but it can suppress the irregularity of the performance in such a case of winding the split magnetic cores and then joining the cores, thereby obtaining a coil formed efficiently with the closed magnetic path.
JP1345781A 1981-01-31 1981-01-31 Manufacture of coil Pending JPS57128014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1345781A JPS57128014A (en) 1981-01-31 1981-01-31 Manufacture of coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1345781A JPS57128014A (en) 1981-01-31 1981-01-31 Manufacture of coil

Publications (1)

Publication Number Publication Date
JPS57128014A true JPS57128014A (en) 1982-08-09

Family

ID=11833669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1345781A Pending JPS57128014A (en) 1981-01-31 1981-01-31 Manufacture of coil

Country Status (1)

Country Link
JP (1) JPS57128014A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0449608A (en) * 1990-06-19 1992-02-19 Witco Of Jupiter Dentsu Kk High frequency coil having iron core and manufacture thereof
JP2001267160A (en) * 2000-01-12 2001-09-28 Tdk Corp Coil sealing dust core and method for manufacturing the same
US7415757B2 (en) 2002-03-20 2008-08-26 Tdk Corporation Method for manufacturing inductor having coil embedded dust core
US10319507B2 (en) 2006-08-09 2019-06-11 Coilcraft, Incorporated Method of manufacturing an electronic component

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5389341A (en) * 1977-01-18 1978-08-05 Tokyo Fueraito Seizou Kk Method of producing noise filter element
JPS55153309A (en) * 1979-04-24 1980-11-29 Tohoku Metal Ind Ltd Manufacture of dust core inductance coil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5389341A (en) * 1977-01-18 1978-08-05 Tokyo Fueraito Seizou Kk Method of producing noise filter element
JPS55153309A (en) * 1979-04-24 1980-11-29 Tohoku Metal Ind Ltd Manufacture of dust core inductance coil

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0449608A (en) * 1990-06-19 1992-02-19 Witco Of Jupiter Dentsu Kk High frequency coil having iron core and manufacture thereof
JP2001267160A (en) * 2000-01-12 2001-09-28 Tdk Corp Coil sealing dust core and method for manufacturing the same
US7415757B2 (en) 2002-03-20 2008-08-26 Tdk Corporation Method for manufacturing inductor having coil embedded dust core
US10319507B2 (en) 2006-08-09 2019-06-11 Coilcraft, Incorporated Method of manufacturing an electronic component
US11869696B2 (en) 2006-08-09 2024-01-09 Coilcraft, Incorporated Electronic component

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