JPS58108774U

JPS58108774U - polarized motor

Info

Publication number: JPS58108774U
Application number: JP16233182U
Authority: JP
Inventors: 比屋根正雄
Original assignee: 富士通株式会社
Priority date: 1982-10-28
Filing date: 1982-10-28
Publication date: 1983-07-25
Also published as: JPS5845517Y2

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 drawings]

第１図は尿考案の実施例の断面斜視図、第２図は第１の
歯形と第２の歯形との位置関係を表わし、た説明図、第
３図は回転子の回転角度θに対する各空隙の磁気抵抗の
変化を示すグラフ、第４図は第１図に示すモータの磁気
回路の等価回路図、第′５図は第１図に示すモータの一
駆動方法を行うた−めの駆動電流波形図である。１・・・モータ、２・・・ハウジング、３・・・回転軸
、４・・・磁気組笠体、５．６・・・駆動部組立体、７
・・・永久磁石、８・・・第１の歯形、８′、８″・・
・突起、９・・・第２の歯形、１０・・・左歯形円板、
１０′・・・突起、１１・・・右歯形円板、１１’、・
突起、１２・・・分割溝、１３−・・駆動コイル、２０
．２１−・・空隙、ａ、　　ｂ。ｃ、ｄ・・・磁気抵抗。FIG. 1 is a cross-sectional perspective view of an embodiment of the urine device, FIG. 2 is an explanatory diagram showing the positional relationship between the first tooth profile and the second tooth profile, and FIG. A graph showing changes in the magnetic resistance of the air gap, Fig. 4 is an equivalent circuit diagram of the magnetic circuit of the motor shown in Fig. 1, and Fig. '5 is a drive for carrying out one driving method of the motor shown in Fig. 1. It is a current waveform diagram. DESCRIPTION OF SYMBOLS 1...Motor, 2...Housing, 3...Rotating shaft, 4...Magnetic assembly body, 5.6...Drive part assembly, 7
...Permanent magnet, 8...First tooth profile, 8', 8''...
・Protrusion, 9...Second tooth profile, 10...Left tooth profile disc,
10'...Protrusion, 11...Right tooth-shaped disc, 11',・
Projection, 12... Division groove, 13-... Drive coil, 20
．． 21-...Void, a, b. c, d...magnetic resistance.

Claims

[Scope of utility model registration request]

a unit stator and a unit rotor, each of which is disposed coaxially with a motor rotational shaft through an opposing gap, and has first and second tooth-shaped opposing portions each formed along an axial direction j; a drive coil that is wound coaxially with the motor rotation axis between the first and second tooth shapes, and whose loop magnetic path is formed by the first and second tooth shapes; a permanent magnet magnetized in the radial direction and formed in a coaxial cylindrical shape on the stator side of the unit in order to form a constant bias magnetic field in the opposing air gap between the at least one set of magnetic assemblies arranged in series on the same axis, one set of permanent magnets being magnetized radially outward and the other set of permanent magnets being magnetized radially inward; A stator-side yoke member that is provided outside the permanent magnets formed on the four sides and forms a common magnetic path for each permanent magnet, and a rotor-side yoke member that forms a common rotation axis of the rotors of the unit. The loop magnetic path of the drive assembly is formed, and the opposing phase angles of the first and second tooth-shaped opposing portions forming the loop magnetic path of the excitation coil are shifted by a predetermined angle when viewed from the axial rotation direction. In addition, the opposing phase angles of the first and second tooth profile opposing portions between the pair of drive assemblies forming the magnetic assembly are shifted from each other, and furthermore, when there is a plurality of magnetic assemblies, it is possible to A polarized motor characterized in that the opposing phase angles between the magnetic assemblies are shifted from each other, and the sum of the shifted opposing phase angles is a phase angle of 36°.