JPS61144784U

JPS61144784U -

Info

Publication number: JPS61144784U
Application number: JP2602285U
Authority: JP
Priority date: 1985-02-25
Filing date: 1985-02-25
Publication date: 1986-09-06

Description

[Brief explanation of the drawing]

第１図乃至第１１図は、本考案の一実施例を示
すもので、第１図は、回転子の分解斜視図、第２
図は、回転子ヨークの拡大平面図、第３図は、ス
テツプ電動機の分解斜視図、第４図は、その断面
図、第５図は、中間ヨークの断面図、第６図は、
その平面図、第７図は、固定子の磁極子の拡大斜
視図、第８図は、回転子ヨークの歯の展開図、第
９図は、固定子の磁極子の展開図、第１０図は、
一方のコイル側における各歯の関係を示す説明図
、第１１図は、他方のコイル側における各歯の関
係を示す説明図、である。１…回転子、２…永久磁石、３，４…回転子ヨ
ーク、３ｄ，３ｅ，４ｄ，４ｅ…回転子ヨークの
貫通孔、５…回転子軸、６…固定子、７，８…固
定子ヨーク、１１…中間ヨーク、１２，１３…固
定子ヨークの磁極子、１９，２０…中間ヨーク磁
極子、２２，２３…コイル。 1 to 11 show an embodiment of the present invention, in which FIG. 1 is an exploded perspective view of the rotor, and FIG.
3 is an exploded perspective view of the step motor, FIG. 4 is a sectional view thereof, FIG. 5 is a sectional view of the intermediate yoke, and FIG. 6 is an enlarged plan view of the rotor yoke.
Its plan view, FIG. 7 is an enlarged perspective view of the magnetic pole piece of the stator, FIG. 8 is a developed view of the teeth of the rotor yoke, FIG. 9 is a developed view of the magnetic pole piece of the stator, and FIG. 10 teeth,
FIG. 11 is an explanatory diagram showing the relationship between the teeth on one coil side, and FIG. 11 is an explanatory diagram showing the relationship between the teeth on the other coil side. 1... Rotor, 2... Permanent magnet, 3, 4... Rotor yoke, 3d, 3e, 4d, 4e... Through hole of rotor yoke, 5... Rotor shaft, 6... Stator, 7, 8... Stator Yoke, 11... intermediate yoke, 12, 13... magnetic pole piece of stator yoke, 19, 20... intermediate yoke magnetic pole piece, 22, 23... coil.

Claims

[Claims for Utility Model Registration] Two cylindrical permanent magnets made of magnetic material with teeth formed at the same pitch on the outer circumferential surface at both ends of a cylindrical permanent magnet magnetized with N pole on one end in the axial direction and S pole on the other end in the axial direction. Arrange the rotor yokes so that they are offset from each other by 1/2 pitch,
These include a rotor that is integrally fixed to the rotor shaft, and a predetermined number of magnetic pole pieces having teeth formed on the inner circumferential surface with the same pitch as the teeth of the rotor yoke. A step motor comprising a stator disposed to face each other with an air gap interposed therebetween, and a coil wound around the magnetic pole, the step motor sequentially energizing the coil to rotate the rotor in steps, the step motor comprising: The rotor yoke is formed into a cylindrical shape with a bottom, and has two through holes equidistant from the center of the cylinder and parallel to the central axis, which are positioned 1/2 pitch apart from the teeth. rotor of an electric motor.