JPS6416183U

JPS6416183U -

Info

Publication number: JPS6416183U
Application number: JP10836187U
Authority: JP
Priority date: 1987-07-15
Filing date: 1987-07-15
Publication date: 1989-01-26

Description

[Brief explanation of the drawing]

第１図は本考案の実施例１を示す分解斜視図、
第２図は同上の要部平面図、第３図は同上の要部
断面図、第４図は本考案の実施例２を示す分解斜
視図、第５図は同上の要部平面図、第６図は本考
案に係るステツプモータの要部断面図、第７図は
同上のステータの励磁状態を示す動作説明図、第
８図は従来のステツプモータの組立過程の一部を
示す断面図である。１はハウジング、２１は回転軸、２２ａ，２２
ｂは回転子円盤、３２ａ，３２ｂはヨーク、３４
ａ，３４はコイル、３７は磁極歯、３８は圧接片
、３８ａは圧接突起である。 FIG. 1 is an exploded perspective view showing Embodiment 1 of the present invention;
2 is a plan view of the main parts of the same as above, FIG. 3 is a sectional view of the main parts of the same as above, FIG. 4 is an exploded perspective view showing Embodiment 2 of the present invention, FIG. Fig. 6 is a cross-sectional view of the main parts of the step motor according to the present invention, Fig. 7 is an explanatory view of the operation showing the excitation state of the stator mentioned above, and Fig. 8 is a cross-sectional view showing a part of the assembly process of the conventional step motor. be. 1 is a housing, 21 is a rotating shaft, 22a, 22
b is a rotor disk, 32a, 32b are yokes, 34
34 is a coil, 37 is a magnetic pole tooth, 38 is a pressure contact piece, and 38a is a pressure contact projection.

Claims

[Scope of utility model registration request]

A housing, a rotary shaft rotatably held by the housing, and magnetized with multiple poles so that the magnetic poles alternate in the circumferential direction, and spaced apart in the axial direction of the rotary shaft so as to co-rotate with the rotary shaft. A pair of rotor disks are attached to the housing, and a large number of magnetic pole teeth, which are fixed at fixed positions in the housing and correspond to the magnetic poles of the rotor disks, are opposed to each other on both sides of the circumference of each rotor disk in the thickness direction. The inner periphery of the housing is equipped with a pair of yokes arranged in the shape of a rotor disk, and a pair of coils that are excited so that the magnetic pole teeth of the opposing yokes on both sides in the thickness direction of each rotor disk become different magnetic poles. A part of the surface is formed to face the outer peripheral surface of the yoke, and a pressure contact means is formed on one of the inner peripheral surface of the housing facing the yoke and the outer peripheral surface of the yoke to press the other. motor.