JPS6077279U

JPS6077279U - stepping motor

Info

Publication number: JPS6077279U
Application number: JP16606983U
Authority: JP
Inventors: 福島　和正; 大森　靖雄
Original assignee: 沖電気工業株式会社
Priority date: 1983-10-28
Filing date: 1983-10-28
Publication date: 1985-05-30

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図は従来のステッピングモータを示す分解斜視図、
第２図は本考案によるステッピングモータの一実施例を
示す分解斜視図、第３図は組立てた状態を示す断面図、
第４図はその外観を示す一部破断正面図、第５図は第３
図における第１の駆動コイルの要部拡大斜視図である。３０・・・ロータ、３１・・・ロータ軸、３２・・・フ
ランジ、３３・・・ヨーク、３４・・・磁極、３５・・
・位置決め孔、３６・・・位置決め溝、３７・・・第１
の駆動コイル、３８・・・第２の駆動コイル、３９，４
０，４１．４２・・・位置決めピン、４３．４４・・・
端子、４５・・・逃げ溝、４６・・・リード線、４７・
・・溝、４８・・・スペーサヨーク、４９・・・位置決
め孔、５０・・・逃げ溝、５１・・・位置決め片、５２
・・田ワーヨーク、５３・・・アッパーヨーク、５４．
５５・・・外周壁、５６．５７・・・位置決め溝、５８
．５９・・・ガイド孔、６０・・・固定突起、６１．６
２・・・孔、６３．６４・・・ブツシュ、６５・・・シ
ム、６６・・・基板。Figure 1 is an exploded perspective view of a conventional stepping motor.
FIG. 2 is an exploded perspective view showing an embodiment of the stepping motor according to the present invention, and FIG. 3 is a sectional view showing the assembled state.
Figure 4 is a partially cutaway front view showing its appearance, and Figure 5 is the third
FIG. 2 is an enlarged perspective view of a main part of the first drive coil in the figure. 30... Rotor, 31... Rotor shaft, 32... Flange, 33... Yoke, 34... Magnetic pole, 35...
・Positioning hole, 36...Positioning groove, 37...First
Drive coil, 38...Second drive coil, 39,4
0,41.42...Positioning pin, 43.44...
Terminal, 45... Relief groove, 46... Lead wire, 47.
...Groove, 48...Spacer yoke, 49...Positioning hole, 50...Escape groove, 51...Positioning piece, 52
...Tawa York, 53...Upper York, 54.
55...Outer peripheral wall, 56.57...Positioning groove, 58
．． 59...Guide hole, 60...Fixing protrusion, 61.6
2... Hole, 63.64... Bush, 65... Shim, 66... Board.

Claims

[Scope of utility model registration request]

In a stepping motor with n magnetic poles in which a first drive coil and a second drive coil are stacked substantially coaxially to the rotor axis, four yokes of the same structure each having 1/4n magnetic poles are used. The upper yoke, the yoke, the first drive coil, the yoke, the spacer yoke, the yoke, the second drive coil, the yoke, and the lower yoke are stacked in this order, and the first
driving, positioning the four yokes using the positioning pin provided on the coil and the positioning pin provided on the second drive coil to form n magnetic poles, and
The positioning pin is fitted into the guide hole provided on the spacer yoke, and the positioning piece provided on the outer circumference of the spacer yoke is fitted into the positioning groove provided on the outer circumferential wall of each of the lower yoke and the upper yoke. This ensures the positional relationship between the terminals formed on the first drive coil and the second drive coil and the downwardly protruding fixing projection provided on the lower yoke, and also secures the positional relationship between the terminals formed on the guide provided on the lower yoke. 1. A stepping motor comprising a rotor protruding from a hole and rotatably disposed integrally with a rotor shaft in the center of a stator.