JPS607683U

JPS607683U - Positionable brushless motor

Info

Publication number: JPS607683U
Application number: JP9801483U
Authority: JP
Inventors: 平野　紀光
Original assignee: 株式会社東海理化電機製作所
Priority date: 1983-06-27
Filing date: 1983-06-27
Publication date: 1985-01-19

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図は本考案第−実施例の縦断面図、第２図は第１図
の主要部分の分解斜視図、第３図は周波数検出用磁極を
有する２極のマグネットロータの下面図、第４図は周波
数検出用くし歯状導電パターンの平面図、第５図は駆動
兼位置指定用磁気感知素子の出力波形図、第６図及び７
図は本考案第二及び第実施例を示す位置指定用磁極と位
置指定用磁気感知素子との配置関係を示す図である。Fig. 1 is a longitudinal sectional view of the first embodiment of the present invention, Fig. 2 is an exploded perspective view of the main parts of Fig. 1, Fig. 3 is a bottom view of a two-pole magnet rotor having magnetic poles for frequency detection, Figure 4 is a plan view of the comb-like conductive pattern for frequency detection, Figure 5 is an output waveform diagram of the magnetic sensing element for driving and position designation, and Figures 6 and 7.
The figure is a diagram showing the arrangement relationship between the position specifying magnetic pole and the position specifying magnetic sensing element according to the second and second embodiments of the present invention.

Claims

[Claims for Utility Model Registration] A 2P-pole driving magnetic pole (P is a positive integer of 1 or more) having IN and S magnetic poles alternately, and a 2-pole position specifying magnetic pole having N and S magnetic poles. a stator armature provided opposite to the magnet rotor; a driving position detecting means; and two position designators each provided opposite to the two position designation magnetic poles. The two magnetic poles for position designation are arranged with a phase shift of 90 degrees from each other, or the two magnetic sensing elements for position designation are arranged with a phase shift of 90 degrees from each other. A position-specifiable brushless motor with the following features. 2. Utility model registration claim 1, characterized in that the brushless motor is a disc-type brushless motor.
Position-specifiable brushless motor as described in section.゛
), 3 The starter armature has a group of armature coils formed so that the opening angle of the conductor portion contributing to the generated torque is equal to the width of the driving magnetic pole, and is arranged so as not to overlap each other. The first claim for utility model registration characterized by
2. A position-specifiable brushless motor according to item 1 or 2. 4. A brushless motor capable of specifying a position according to any one of claims 1 to 3 of claims 1 to 3, wherein the two position specifying magnetic poles are formed on the outer periphery of a rotor magnet. . 5. The position-designating brush according to any one of claims 1 to 3 of claims 1 to 3, wherein the two position-designating magnetic poles are formed on a plane of a rotor magnet. l Female motor. 6. The brushless motor capable of specifying a position according to claim 4 or 5, wherein the position specifying magnetic pole is formed of a plastic magnet. 7. The magnet rotor is characterized in that a frequency detection magnetic pole is formed, and a substrate on which a comb-like frequency detection conductive pattern is formed is disposed on the armature coil surface facing the frequency detection magnetic pole. A position-specifiable brushless motor according to any one of claims 1 to 6, which is a registered utility model.