JPS59183180U - Flat type DC brushless motor - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａは従来の偏平型直流ブラシレスモータの断面図
、第１図すは電機子コイルの配置図、第１図Ｃは回転子
マグネットの着磁を示す図、第２図は偏平型直流ブラシ
レスモータの側面図、第３図は偏平型直流ブラシレスモ
ータの一部断面図、第４図は従来の電機子コイルと回転
子マグネットとの関係を示す一部配置図、第５図は本考
案の電機子コイルと回転子マグネットとの関係を示す一
部配置図。 １・・・回転子マグネツｉ、２・・・回転子ヨーク、３
゜３１・・・電機子コイル、４・・・ホール素子、５・
・・配線基板、６・・・固定子ヨーク、７・・・軸受、
８・・・モータシャフト、９・・・空隙。Figure 1a is a cross-sectional view of a conventional flat type DC brushless motor, Figure 1 is a diagram of the armature coil arrangement, Figure 1C is a diagram showing the magnetization of the rotor magnet, and Figure 2 is a flat type DC brushless motor. A side view of a brushless motor, Fig. 3 is a partial sectional view of a flat type DC brushless motor, Fig. 4 is a partial layout diagram showing the relationship between the conventional armature coil and rotor magnet, and Fig. 5 is a partial cross-sectional view of a flat DC brushless motor. FIG. 3 is a partial layout diagram showing the relationship between the armature coil and the rotor magnet. 1... Rotor magnets i, 2... Rotor yoke, 3
゜31... Armature coil, 4... Hall element, 5...
...Wiring board, 6...Stator yoke, 7...Bearing,
8...Motor shaft, 9...Gap.

Claims (1)

【実用新案登録請求の範囲】 円周方向にＮ極、Ｓ極が交互に分割着磁された円板状の
回転子マグネットを回転子として該回転子マグネットに
軸方向に対向して軸を同じくする固定子の回転子マグネ
ットと対向する面上に固定された枠型で内縁部がほぼ三
角形状をした電機子コイル群に回転子マグネットの磁極
に対応した電流を通電することにより回転力を得る直流
ブラシレスモータにおいて、電機子コイル群を軸方向に
回転子マグネット上に投影したとき電機子コイル群の三
角形状を形成する内縁部の３辺のうちの上−配回転子マ
グネットの円周方向とほぼ同一方向である辺が回転子マ
グネットのほぼ外周上に位置することを特徴とする偏平
型直流ブラシレスモータ。 ｔ□□[Claims for Utility Model Registration] A disc-shaped rotor magnet in which N poles and S poles are alternately divided and magnetized in the circumferential direction is used as a rotor, and the rotor magnet is opposed to the rotor magnet in the axial direction and has the same axis. Rotational force is obtained by passing current corresponding to the magnetic poles of the rotor magnet through a group of frame-shaped armature coils whose inner edges are approximately triangular, which are fixed on the surface of the stator facing the rotor magnet. In a DC brushless motor, when the armature coil group is projected onto the rotor magnet in the axial direction, the upper of the three sides of the inner edge forming the triangular shape of the armature coil group is the circumferential direction of the rotor magnet. A flat DC brushless motor characterized in that sides that are in substantially the same direction are located substantially on the outer periphery of a rotor magnet. t□□