JPS56160014A - Electromagnetic device - Google Patents

Electromagnetic device

Info

Publication number
JPS56160014A
JPS56160014A JP6438480A JP6438480A JPS56160014A JP S56160014 A JPS56160014 A JP S56160014A JP 6438480 A JP6438480 A JP 6438480A JP 6438480 A JP6438480 A JP 6438480A JP S56160014 A JPS56160014 A JP S56160014A
Authority
JP
Japan
Prior art keywords
insulating layer
coil
sections
iron core
opposite end
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
JP6438480A
Other languages
Japanese (ja)
Inventor
Kazunaga Takahashi
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.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Priority to JP6438480A priority Critical patent/JPS56160014A/en
Publication of JPS56160014A publication Critical patent/JPS56160014A/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 
    • H01F17/0006—Printed inductances
    • H01F17/0033—Printed inductances with the coil helically wound around a magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Windings For Motors And Generators (AREA)
  • Electromagnets (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

PURPOSE:To obtain a coil permitting miniaturization and thinness by providing an insulating layer at the external circumference of a ferromagnetic material wherein conductive films are formed in helicoid shape on the insulating layer to compose a coil. CONSTITUTION:In a cylindrical iron core 1 formed by a ferromagnetic material such as permalloy, large diameter sections 4, 5 and taper sections 6, 7 are formed at the inside of opposite end sections 2, 3 and the intermediate section between the taper sections 6, 7 becomes a coil section 8. An insulating layer 9 is formed at the external circumference surface locating at the inside of the opposite end sections 2, 3 of the iron core 1 and then conductive films 10, 11 are formed on the insulating layer 9 (10 is a grounding layer to increase bonding strength). Next, notched grooves 12 are provided in helicoil shape at the films 11, 10 by cutting tools, laser, electron beam flux or the like at the depth reaching the insulating layer 9. The large diameter sections 4, 5 are used as the terminals of the coil 8. Such a coil can be used as a motor, an electromagnet or the like.
JP6438480A 1980-05-15 1980-05-15 Electromagnetic device Pending JPS56160014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6438480A JPS56160014A (en) 1980-05-15 1980-05-15 Electromagnetic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6438480A JPS56160014A (en) 1980-05-15 1980-05-15 Electromagnetic device

Publications (1)

Publication Number Publication Date
JPS56160014A true JPS56160014A (en) 1981-12-09

Family

ID=13256756

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6438480A Pending JPS56160014A (en) 1980-05-15 1980-05-15 Electromagnetic device

Country Status (1)

Country Link
JP (1) JPS56160014A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0657875A2 (en) * 1993-12-10 1995-06-14 Sony Corporation Magnetic head
WO1998035367A1 (en) * 1997-02-11 1998-08-13 Pulse Engineering, Inc. Monolithic inductor and method of manufacturing same
US6087921A (en) * 1998-10-06 2000-07-11 Pulse Engineering, Inc. Placement insensitive monolithic inductor and method of manufacturing same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0657875A2 (en) * 1993-12-10 1995-06-14 Sony Corporation Magnetic head
EP0657875A3 (en) * 1993-12-10 1996-09-11 Sony Corp Magnetic head.
WO1998035367A1 (en) * 1997-02-11 1998-08-13 Pulse Engineering, Inc. Monolithic inductor and method of manufacturing same
US6087920A (en) * 1997-02-11 2000-07-11 Pulse Engineering, Inc. Monolithic inductor
US6223419B1 (en) 1997-02-11 2001-05-01 Pulse Engineering, Inc. Method of manufacture of an improved monolithic inductor
US6087921A (en) * 1998-10-06 2000-07-11 Pulse Engineering, Inc. Placement insensitive monolithic inductor and method of manufacturing same

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