JPS56144507A - Forming device for driving magnetic flux of moving coil - Google Patents

Forming device for driving magnetic flux of moving coil

Info

Publication number
JPS56144507A
JPS56144507A JP4886480A JP4886480A JPS56144507A JP S56144507 A JPS56144507 A JP S56144507A JP 4886480 A JP4886480 A JP 4886480A JP 4886480 A JP4886480 A JP 4886480A JP S56144507 A JPS56144507 A JP S56144507A
Authority
JP
Japan
Prior art keywords
yokes
spaces
magnetic
adjoining
magnetic flux
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.)
Granted
Application number
JP4886480A
Other languages
Japanese (ja)
Other versions
JPS5931206B2 (en
Inventor
Yuji Kitamura
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 JP4886480A priority Critical patent/JPS5931206B2/en
Publication of JPS56144507A publication Critical patent/JPS56144507A/en
Publication of JPS5931206B2 publication Critical patent/JPS5931206B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Impact Printers (AREA)

Abstract

PURPOSE:To contrive the miniaturization of a device by arranging yokes at two stages, up and down, on the circumference wherein permanent magnets are arranged between the yokes to form closed magnetic circuits by striding the spaces between adjoining yokes and the useless of magnetic flux and magnetic interference are eliminated. CONSTITUTION:The first yokes 12 are formed in sector shape and the same number of transferring members 1 and moving coils 11 are arranged on the concentric circumference at the same plane. The spaces 13 of the first magnetic paths with gaps (d) are formed between the adjoining yokes 12 and the spaces 13 are radiately formed. And the second yokes 14 are arranged at the lower side of the yokes 12 in parallel with the yokes 12 and with the same allignment shape and the distance D and plate-shaped permanent magnets 16 are inserted between the spaces of each opposed yoke 12, 14. The spaces 15 of the second magnetic paths are also formed between the adjoining yokes 14 and the magnetic poles of the magnets 16 are formed in the opposed direction of both yokes 12, 14 to insert the magnets 16 so that the polarity may alternately invert. And closed magnetic circuits are formed by striding the spaces between the adjoining yokes 12, 14 to cancel the useless magnetic flux and magnetic interference.
JP4886480A 1980-04-14 1980-04-14 Moving coil drive magnetic flux forming device Expired JPS5931206B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4886480A JPS5931206B2 (en) 1980-04-14 1980-04-14 Moving coil drive magnetic flux forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4886480A JPS5931206B2 (en) 1980-04-14 1980-04-14 Moving coil drive magnetic flux forming device

Publications (2)

Publication Number Publication Date
JPS56144507A true JPS56144507A (en) 1981-11-10
JPS5931206B2 JPS5931206B2 (en) 1984-07-31

Family

ID=12815137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4886480A Expired JPS5931206B2 (en) 1980-04-14 1980-04-14 Moving coil drive magnetic flux forming device

Country Status (1)

Country Link
JP (1) JPS5931206B2 (en)

Also Published As

Publication number Publication date
JPS5931206B2 (en) 1984-07-31

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