JPS6310779U

JPS6310779U -

Info

Publication number: JPS6310779U
Application number: JP10456386U
Authority: JP
Priority date: 1986-07-08
Filing date: 1986-07-08
Publication date: 1988-01-23

Description

[Brief explanation of the drawing]

第１図は本考案になるステツプモータの回転子
の一実施例の分解斜視図、一部切截側面図、第２
図は従来のステツプモータの一例を説明するため
の図、第３図、第４図夫々は第２図示のステツプ
モータの磁路を説明するための図、第５図、第６
図夫々は第１図示の回転子を適用したステツプモ
ータの磁路を説明するための図である。３ａ，３ｂ……固定子、２０……磁石、２１，
２２……磁極部材、２１ａ，２２ａ……磁極片、
２３……軸。 Fig. 1 is an exploded perspective view, a partially cut away side view, and a second
The figure is a diagram for explaining an example of a conventional step motor, FIGS. 3 and 4 are diagrams for explaining the magnetic path of the step motor shown in FIG. 2, and FIGS.
Each figure is a diagram for explaining the magnetic path of a step motor to which the rotor shown in the first figure is applied. 3a, 3b... Stator, 20... Magnet, 21,
22...Magnetic pole member, 21a, 22a...Magnetic pole piece,
23... Axis.

Claims

[Claims for Utility Model Registration] A step consisting of a rotor having a plurality of magnetic poles with alternating polarities in the circumferential direction, and a stator having a plurality of opposing magnetic pole pieces disposed around the outer periphery of the rotor. In a motor, the rotor has a magnet magnetized in the axial direction, and a plurality of magnetic pole pieces abutting one magnetic pole of the magnet and extending around the outer periphery of the magnet. a first magnetic pole member of magnetic permeability; and a plurality of magnetic poles extending around the outer periphery of the magnet so as to abut the other magnetic pole of the magnet and mesh with the plurality of magnetic pole pieces of the first magnetic pole member at equal intervals. A step motor comprising a second magnetic pole member with high magnetic permeability, one of which has the polarity of the other magnetic pole.