JPS62165752U

JPS62165752U -

Info

Publication number: JPS62165752U
Application number: JP5430686U
Authority: JP
Priority date: 1986-04-11
Filing date: 1986-04-11
Publication date: 1987-10-21

Description

[Brief explanation of the drawing]

第１図〜第３図はこの考案によるラジアルギヤ
ツプ形電動機の一実施例を示す図で、第１図は駆
動用磁石及び周波数発電機用磁石部分の斜視図、
第２図は縦断面図、第３図は駆動回路内の信号波
形図、第４図〜第６図は従来のラジアルギヤツプ
形電動機を示す図で、第４図は縦断面図、第５図
は周波数発電機用磁石部分の斜視図、第６図は駆
動用磁石及び周波数発電機用磁石部分の斜視図、
第７図はこの考案及び従来のラジアルギヤツプ形
電動機の駆動回路のブロツク図、第８図は従来の
ラジアルギヤツプ形電動機の駆動回路内の信号波
形図である。図中、５は固定子、６は駆動用コイル、７は回
転子、８は駆動用磁石、８Ａは周波数発電機用磁
石、９は磁気検出素子である。なお、図中同一符
号は同一部分を示す。 1 to 3 are views showing an embodiment of the radial gap type motor according to this invention, and FIG. 1 is a perspective view of the driving magnet and the frequency generator magnet portion;
Fig. 2 is a longitudinal sectional view, Fig. 3 is a signal waveform diagram in the drive circuit, Figs. 4 to 6 are diagrams showing a conventional radial gap type electric motor, Fig. 4 is a longitudinal sectional view, and Fig. 5 is A perspective view of the magnet part for the frequency generator, FIG. 6 is a perspective view of the drive magnet and the magnet part for the frequency generator,
FIG. 7 is a block diagram of a drive circuit for a radial gap type electric motor according to the present invention and a conventional one, and FIG. 8 is a signal waveform diagram in the drive circuit for a conventional radial gap type electric motor. In the figure, 5 is a stator, 6 is a driving coil, 7 is a rotor, 8 is a driving magnet, 8A is a frequency generator magnet, and 9 is a magnetic detection element. Note that the same reference numerals in the figures indicate the same parts.

Claims

[Scope of utility model registration request]

A rotor is rotatably supported in correspondence with a stator around which a driving coil is wound, and cylindrical driving magnets with different polarities are alternately magnetized along the inner circumference of the rotor. A frequency generator magnet is attached along the circumference on the end face of the drive magnet. A radial gap type motor in which different poles of the frequency generator magnet are alternately magnetized, wherein magnetization of the integer number of poles of the frequency generator magnet is abolished in the vicinity of each pole adjacent portion of the drive magnet.