JPS6447570U

JPS6447570U -

Info

Publication number: JPS6447570U
Application number: JP14203087U
Authority: JP
Priority date: 1987-09-17
Filing date: 1987-09-17
Publication date: 1989-03-23

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るブラシレスモ
ータの分解斜視図、第２図は第１図のモータの平
面図、第３図は第１図のモータの正面図、第４図
は第１図のモータの回転子およびその周辺の縦断
面図、第５図は第１図中のガイド部材（ハウジン
グ部材）の正面図、第６図は第５図中の線−
から見た底面図、第７図は第１図のモータの作動
状態を示す模式的説明図、第８図は本考案の他の
実施例に係るブラシレスモータの分解斜視図であ
る。１……第３のステータ、１Ａ，１Ｂ……対向部
（磁極部）、２，７……励磁コイル、３，２２…
…第１のステータ、３Ａ，２２Ａ……対向部（磁
極部）、４……ガイド部材（ハウジング部材）、
４Ｅ，４Ｆ……回転位置検出素子の位置決め孔、
４Ｇ……軸受孔部、５……回転子、６，２３……
第２のステータ、６Ａ，２３Ａ……対向部（磁極
部）、８……マグネツト、１０……磁気シールド
部材、１４，１５……回転位置検出素子（ホール
素子）、２４，２５……ガイド孔、３０……凹部
（ガイド部材）、３１，３２……ガイド孔。 FIG. 1 is an exploded perspective view of a brushless motor according to an embodiment of the present invention, FIG. 2 is a plan view of the motor shown in FIG. 1, FIG. 3 is a front view of the motor shown in FIG. 1, and FIG. 1 is a vertical sectional view of the rotor of the motor and its surroundings, FIG. 5 is a front view of the guide member (housing member) in FIG. 1, and FIG. 6 is a line -
FIG. 7 is a schematic explanatory view showing the operating state of the motor of FIG. 1, and FIG. 8 is an exploded perspective view of a brushless motor according to another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Third stator, 1A, 1B... Opposing part (magnetic pole part), 2, 7... Excitation coil, 3, 22...
...First stator, 3A, 22A... Opposing part (magnetic pole part), 4... Guide member (housing member),
4E, 4F...Positioning hole for rotational position detection element,
4G...Bearing hole, 5...Rotor, 6,23...
Second stator, 6A, 23A... Opposing part (magnetic pole part), 8... Magnet, 10... Magnetic shielding member, 14, 15... Rotational position detection element (Hall element), 24, 25... Guide hole , 30... recess (guide member), 31, 32... guide hole.

Claims

[Scope of utility model registration request]

A first stator having a portion facing the magnet of the rotor, a second stator having a similar facing portion at another position, and the other side of the first stator and the second stator at another position. and a third stator having a facing part constituting a facing part of the stator,
The brushless motor is characterized in that the first stator, second stator, and third stator are positioned and fixed by one guide member so as to maintain an air gap between each of the opposing parts and the magnet at a predetermined value. motor.