JPS5978888U

JPS5978888U - motor

Info

Publication number: JPS5978888U
Application number: JP17457782U
Authority: JP
Inventors: 正幸吉田; 玉木　伸一; 宮地　英臣
Original assignee: パイオニア株式会社
Priority date: 1982-11-17
Filing date: 1982-11-17
Publication date: 1984-05-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ｇは従来のモータの断面図、第１図すは従来のモ
ータの平面図、第１図Ｃは従来のモータのマグネットの
着磁状態を示す図、第２図ｇないし第２図ｇは従来のモ
ータの動作を説明するための波形図、第３図ｇはこの考
案のモータの第１実施例の断面図、第３図すは同上モー
タの第１実施例の平面図、第３図Ｃは同上モータの第１
実施例におけるマグネットの着磁状態を示す図、第４図
ｇないし第４図ｇおよび第５図ｇないし第５図Ｃ′はそ
れぞれ同上モータの第１実施例の動作を説明するための
波形図、第６図ｇはこの考案のモータの第２実施例の断
面図、第６図すは同上モータの第２実施例の平面図、第
６図Ｃは同上モータの第２実施例のマグネットの着磁状
態を示す図、第７　　′図ａばこの考案のモータの第３
実施例の断面図、第７図すは同上モータの第３実施例の
平面図、第７図Ｃは同上モータの第３実施例のマグネッ
トの着磁状態を示す図、第８図ｇないし第８図ｇおよび
第９図ｇないし第９図Ｃは同上モータの第３実施例の動
作を説明するための波形図である。１・・・・・・マグネット、２・・・・・・マグネット
ヨーク、３・・・・・・スピンドル、４・・・・・・プ
リント基板、５・・・・・・駆動コイル、６・・・・・
・固定子ヨーク、７・・・・・・軸受、８・・・・・・
スラスト受、９・・・・・・位置検出器、１０゜１０−
１．１０−２・・・・・・磁性体。Fig. 1g is a sectional view of a conventional motor, Fig. 1 is a plan view of a conventional motor, Fig. 1C is a diagram showing the magnetized state of the magnet of a conventional motor, Figs. 2g to 2. g is a waveform diagram for explaining the operation of a conventional motor, FIG. 3g is a sectional view of the first embodiment of the motor of this invention, FIG. Figure 3C is the first motor of the same motor.
4g to 4g and 5g to 5C' are waveform charts for explaining the operation of the first embodiment of the same motor, respectively. , Fig. 6g is a sectional view of a second embodiment of the motor of this invention, Fig. 6 is a plan view of the second embodiment of the same motor, and Fig. 6C is a diagram of the magnet of the second embodiment of the same motor. A diagram showing the magnetized state, Figure 7'
FIG. 7 is a cross-sectional view of the embodiment, FIG. 7 is a plan view of the third embodiment of the same motor, FIG. 7 C is a diagram showing the magnetized state of the magnet of the third embodiment of the same motor, and FIGS. 8g and 9g to 9c are waveform diagrams for explaining the operation of the third embodiment of the same motor. DESCRIPTION OF SYMBOLS 1... Magnet, 2... Magnet yoke, 3... Spindle, 4... Printed circuit board, 5... Drive coil, 6...・・・・・・
・Stator yoke, 7...Bearing, 8...
Thrust receiver, 9...Position detector, 10°10-
1.10-2...Magnetic material.

Claims

[Scope of utility model registration request]

A spindle that is rotatably supported by a bearing, a magnet yoke that is attached to this spindle and rotates integrally with the spindle, a magnet that is attached to this magnetic yoke, a stator yoke that is attached to the bearing, and this fixed a printed circuit board that is attached to the child yoke and has a drive coil; a position detector that is installed on the printed circuit board or the stator yoke and outputs an output according to the magnetic field distribution of the magnet; A motor consisting of protruding magnetic bodies or holes provided so that the torque ripple of the drive coil and the cogging torque are in opposite phases.
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