JPS56162964A - Transistor motor - Google Patents

Transistor motor

Info

Publication number
JPS56162964A
JPS56162964A JP6752180A JP6752180A JPS56162964A JP S56162964 A JPS56162964 A JP S56162964A JP 6752180 A JP6752180 A JP 6752180A JP 6752180 A JP6752180 A JP 6752180A JP S56162964 A JPS56162964 A JP S56162964A
Authority
JP
Japan
Prior art keywords
rotor
protruding
recess parts
face
speed detecting
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
JP6752180A
Other languages
Japanese (ja)
Inventor
Yukihiko Hagino
Yasuyuki Makikawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6752180A priority Critical patent/JPS56162964A/en
Publication of JPS56162964A publication Critical patent/JPS56162964A/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
    • H02K29/14—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with speed sensing devices

Landscapes

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

Abstract

PURPOSE:To obtain a favorable speed detecting signal of the transistor motor as not affecting to magnetic field flux by a method wherein protruding and recess parts are formed on the outer circumferential part of a rotor consisting of a conductive material, speed detecting electrodes are made to face to the protruding and recess parts thereof and the rotating speed is detected from a change of electrostatic capacity. CONSTITUTION:At the rotor 2 being equipped with a ring type field magnet 5 on one-sided face of a flywheel 4 consisting of the conductive material, the protruding and recess parts 41 are formed on the outer circumferential face of the flywheel 4. Moreover the speed detecting electrodes 14, 15 being provided with protruding and recess parts 141, 151 are equipped as to face to a part of those protruding and recess parts 41 to a stator plate 1 through spacers 14, 15 respectively. A voltage is applied as to form a closed circuit through the rotor 2, the speed detecting electrodes 14, 15 and the stator plate 1, and the rotating speed of the rotor 1 is detected by the change of electrostatic capacity between the rotor 2 and the electrodes 14, 15 to be caused by the rotation of the rotor 2.
JP6752180A 1980-05-19 1980-05-19 Transistor motor Pending JPS56162964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6752180A JPS56162964A (en) 1980-05-19 1980-05-19 Transistor motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6752180A JPS56162964A (en) 1980-05-19 1980-05-19 Transistor motor

Publications (1)

Publication Number Publication Date
JPS56162964A true JPS56162964A (en) 1981-12-15

Family

ID=13347358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6752180A Pending JPS56162964A (en) 1980-05-19 1980-05-19 Transistor motor

Country Status (1)

Country Link
JP (1) JPS56162964A (en)

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