JPS58184667U

JPS58184667U - Motor rotation detection pulse generator

Info

Publication number: JPS58184667U
Application number: JP8073182U
Authority: JP
Inventors: 博山下
Original assignee: 株式会社東芝
Priority date: 1982-06-02
Filing date: 1982-06-02
Publication date: 1983-12-08

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のモータ回転検出パルス発生装置の構成説
明図、第２図は第１図装置の一部平面図、第３図はこの
考案の一実施例を示す構成説明図、第４図は第３図の装
置の一部平面図、第５図は第３図の装置の一部を拡大し
て示す図、第６図は回転検出用マグネットの平面図、第
７図は第３図の装置の動作例を説明するのに示した説明
図である。１３・・・キャプスタン軸、２０・・・モータドライブ
コイル、２２・・・マグネット保持具、２３・・・モー
タマグネット、３０・・・コイルパターン、３１・・・
基板、３２・・・回転検出用マグネット。FIG. 1 is an explanatory diagram of the configuration of a conventional motor rotation detection pulse generator, FIG. 2 is a partial plan view of the device shown in FIG. 1, FIG. 3 is an explanatory diagram of the configuration of an embodiment of this invention, and FIG. 4 is a partial plan view of the device shown in FIG. 3, FIG. 5 is an enlarged view of a portion of the device shown in FIG. 3, FIG. 6 is a plan view of the rotation detection magnet, and FIG. 7 is a plan view of the device shown in FIG. 3. FIG. 3 is an explanatory diagram shown to explain an example of the operation of the device. 13... Capstan shaft, 20... Motor drive coil, 22... Magnet holder, 23... Motor magnet, 30... Coil pattern, 31...
Board, 32... Magnet for rotation detection.

Claims

[Scope of utility model registration request]

A magnet holder attached to one end of a rotatably supported rotating shaft, a motor magnet attached to the magnet holder and rotating together with the rotating shaft, and facing the rotating surface of the motor magnet with a gap therebetween. The motor drive coil is rotated and fixed, a rotation detection magnet rotates with the rotation of the rotation shaft, and rotation detection means formed by a coil pattern facing the rotation orbit of the rotation detection magnet with a gap therebetween. In the motor rotation detection pulse generator, the rotation detection means is a ring-shaped rotation detection means provided on the rotation surface of the motor drive magnet, coaxial with the rotation axis, and having a plurality of NS poles arranged in the rotation direction. A magnet and a rectangular pattern along the ring-shaped direction of the rotation detection magnet are formed on the substrate surface, and the substrate is placed on the rotation surface of the motor drive coil so as to face the rotation detection magnet with a gap therebetween. 1. A motor rotation detection pulse generator characterized by comprising a pattern coil attached through a pattern coil.