JPS5941086U

JPS5941086U - step motor

Info

Publication number: JPS5941086U
Application number: JP13520682U
Authority: JP
Inventors: 和美秋山
Original assignee: 三菱電機株式会社
Priority date: 1982-09-06
Filing date: 1982-09-06
Publication date: 1984-03-16

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、第２図は従来例を示し、第１図は縦断面図、第
２図は第１図の■−■断面図、第３図、第４図はこの考
案の一実施例を示し、第３図は第２図に対応する断面図
、第４図は回転リングの要部の斜視図である。図において、同一符号は同一または相当部分を示し、１
はフレーム、２は磁極、４は回転子、５は回転リング、
６は永久磁石、７ｂ、７ｃはリードスイッチである。Figures 1 and 2 show a conventional example, Figure 1 is a vertical sectional view, Figure 2 is a sectional view taken along the line ■-■ in Figure 1, and Figures 3 and 4 are an embodiment of this invention. 3 is a sectional view corresponding to FIG. 2, and FIG. 4 is a perspective view of the main parts of the rotating ring. In the figures, the same reference numerals indicate the same or corresponding parts, 1
is the frame, 2 is the magnetic pole, 4 is the rotor, 5 is the rotating ring,
6 is a permanent magnet, and 7b and 7c are reed switches.

Claims

[Scope of utility model registration request]

(1) A magnetic pole 2 supported on the side of the frame 1, a rotor 4 that faces the magnetic pole 2 through an axial gap and rotates a predetermined angle by the bias of the magnetic pole 2, and A step motor is provided with a rotary ring 5 that is driven and faces the inner periphery of the frame with a gap in between. A magnet 6 is installed on the outer periphery of the rotating ring 5 and faces the reed switches 7b, 7c, and the reed switches 7b, 7c are provided with a magnet 6.
A step motor characterized in that the position of the rotor 4 is detected by a signal 7c.

(2) The step motor according to claim 1, which is a registered utility model, characterized in that the magnets 6 are magnets that are attached with polarities opposite to each other. .