JPS57122661A - Dc brushless motor - Google Patents

Dc brushless motor

Info

Publication number
JPS57122661A
JPS57122661A JP504881A JP504881A JPS57122661A JP S57122661 A JPS57122661 A JP S57122661A JP 504881 A JP504881 A JP 504881A JP 504881 A JP504881 A JP 504881A JP S57122661 A JPS57122661 A JP S57122661A
Authority
JP
Japan
Prior art keywords
stator yoke
coil
magnetic field
field detecting
detecting element
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
JP504881A
Other languages
Japanese (ja)
Inventor
Saburo Kazama
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP504881A priority Critical patent/JPS57122661A/en
Publication of JPS57122661A publication Critical patent/JPS57122661A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Brushless Motors (AREA)

Abstract

PURPOSE:To obtain a small sized and highly efficient motor by a method wherein a magnetic field detecting element is inserted into a small hole or a notch provided in the surface of a stator yoke. CONSTITUTION:A coil 10 is arranged and fixed on one side of a flat circular stator yoke 3 facing a rotor magnet coil 4 and a printed circuit board 2 on which a magnetic field detecting element is fitted and which is also used as a circular coil termination plate smaller than the stator yoke 3 is fixed on another side of the stator yoke 3. The magnetic field detecting element 1 is fitted to the specified position of the printed circuit board 2 and this element 1 is inserted into a small hole provided to the stator yoke 3 at the position which has a specified angle from the position of the coil in such a manner that the tip surface of the element 1 is almost identical with the coil fixing surface of the stator yoke 3. The writing pattern of the printed circuit board 2 is provided to the surface opposite to the surface on which the magnetic field detecting element 1 is fitted and the lead wires 15 are drawn out from the wiring pattern to the upward. The flat circular rotor magnet 4 is equally divided into 2n poles and magnetized and fixed to a shaft 7, which is supported by a bearing 6 so as to rotate freely, via a magnetic pole connecting plate 8.
JP504881A 1981-01-19 1981-01-19 Dc brushless motor Pending JPS57122661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP504881A JPS57122661A (en) 1981-01-19 1981-01-19 Dc brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP504881A JPS57122661A (en) 1981-01-19 1981-01-19 Dc brushless motor

Publications (1)

Publication Number Publication Date
JPS57122661A true JPS57122661A (en) 1982-07-30

Family

ID=11600520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP504881A Pending JPS57122661A (en) 1981-01-19 1981-01-19 Dc brushless motor

Country Status (1)

Country Link
JP (1) JPS57122661A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934471U (en) * 1982-08-25 1984-03-03 ミツミ電機株式会社 cylinder motor
EP0152508A2 (en) * 1984-02-23 1985-08-28 Kangyo Denkikiki Kabushiki Kaisha Coreless-brushless motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934471U (en) * 1982-08-25 1984-03-03 ミツミ電機株式会社 cylinder motor
EP0152508A2 (en) * 1984-02-23 1985-08-28 Kangyo Denkikiki Kabushiki Kaisha Coreless-brushless motor

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