JPS58159887U

JPS58159887U - Disc type brushless motor

Info

Publication number: JPS58159887U
Application number: JP5687682U
Authority: JP
Inventors: 伴　五紀; 学白木
Original assignee: 株式会社セコ−技研
Priority date: 1982-04-21
Filing date: 1982-04-21
Publication date: 1983-10-25

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６極の界磁マグネットの平面図、第２図は本考
案者の先に考案した一例としての電機子コイル群と磁電
変換素子群と集積回路との配設方法を示すための説明図
、第３図は一例としての集積回路の内部配線図、第４図
は界磁マグネット、電機子コイル群及び集積回路との展
開図、第５図は一実施例としての本考案のディスク型ブ
ラシレスモータの縦断面図、第６図は一例としての速度
検出用磁極を有する界磁マグネットの平面図、第７図は
第６図の界磁マグネットから得られる磁界出力波形説明
図、第８図は一例としての電機子コイル群の配設方法を
示すための説明図、第９図は一例としての発電コイルパ
ターン形成方法を示すための説明図及び該発電コイルパ
ターンから得られる回転速度出力パルス波形図、第１０
図は一例としての位置検出機能を有する磁性体の形成方
法を示すための説明図である。１．１′・・・界磁マグネット、１″・・・速度検出用
磁極、３・・・電機子コイル、４・・・磁電変換素子、
５・・・集積回路、６・・・オベアング群、７・・・パ
ワーアンプ群、８・・・増幅回路、９−１・・・プラス
電源端子、９−２・・・マイナス電源端子、１０．　１
１．　１２・・・点線囲い部、１３・・・ディスク型ブ
ラシレスモータ、１４・・・軸受、１５・・・スラスト
板、１６・・・軸受支持部材、１７・・・回転軸、１８
・・・ボス、１９・・・磁性体ヨーク、２０・・・磁界
出力波形、２１・・・プラスチックモールド部、２２・
・・薄板、２３・・・発電コイルパターン、２４−１．
２４−２・・・出力端子、２５・・・回転速度出力パル
ス波形、２６・・・電気部品、・−２７・・・磁性体。茅１　問Fig. 1 is a plan view of a six-pole field magnet, and Fig. 2 is a plan view of a six-pole field magnet. 3 is an internal wiring diagram of an integrated circuit as an example, FIG. 4 is a developed view of a field magnet, an armature coil group, and an integrated circuit, and FIG. 5 is a disk of the present invention as an example. FIG. 6 is a plan view of a field magnet having magnetic poles for speed detection as an example, FIG. 7 is an explanatory diagram of the magnetic field output waveform obtained from the field magnet of FIG. 6, and FIG. The figure is an explanatory diagram showing an example of a method of arranging an armature coil group, and FIG. 9 is an explanatory diagram showing an example of a method of forming a generating coil pattern, and the rotational speed output pulse obtained from the generating coil pattern. Waveform diagram, 10th
The figure is an explanatory diagram showing a method of forming a magnetic body having a position detection function as an example. 1.1'... Field magnet, 1''... Magnetic pole for speed detection, 3... Armature coil, 4... Magnetoelectric conversion element,
5...Integrated circuit, 6...Obeang group, 7...Power amplifier group, 8...Amplification circuit, 9-1...Plus power supply terminal, 9-2...Minus power supply terminal, 10 ．． 1
1. DESCRIPTION OF SYMBOLS 12... Dotted line enclosure part, 13... Disk type brushless motor, 14... Bearing, 15... Thrust plate, 16... Bearing support member, 17... Rotating shaft, 18
...Boss, 19...Magnetic material yoke, 20...Magnetic field output waveform, 21...Plastic mold part, 22...
...Thin plate, 23...Generating coil pattern, 24-1.
24-2... Output terminal, 25... Rotational speed output pulse waveform, 26... Electrical component, -27... Magnetic material. Kaya 1 question

Claims

[Scope of utility model registration request]

A 2p (p is a positive integer of 2 or more) pole field magnet having N and S magnetic poles alternately is used as a rotor, and a fixed side facing the field magnet has a magnetic pole width approximately equal to the width of the field magnet. m(
-m is a positive integer of 2 or more), and one end of the m magnetic bodies is fixed on the fixed side at an interval of an integral multiple of 360/pm between the field magnet and the armature coil. 1. A disk-type brushless motor, characterized in that a magneto-electric conversion element is disposed facing each other at the other end of each of the m magnetic bodies.