JPS58139848U

JPS58139848U - starter motor

Info

Publication number: JPS58139848U
Application number: JP3831482U
Authority: JP
Inventors: 浜野　勲
Original assignee: 三菱電機株式会社
Priority date: 1982-03-15
Filing date: 1982-03-15
Publication date: 1983-09-20

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 drawings]

第１図は従来の界磁装置の構成を示す要部断面図、第２
図はこの考案の一実施例による界磁装置′の要部断面図
、第３図はこの考案の他の実施例の構成図及び磁気特性
線図である。図中、２は継鉄、７及び８は界磁々極ミ７ａは突設極弧
部である。尚、図中同一符号は同−又は相当部分を示す
。Figure 1 is a cross-sectional view of the main parts showing the configuration of a conventional field device;
The figure is a sectional view of a main part of a field device' according to one embodiment of this invention, and FIG. 3 is a block diagram and magnetic characteristic diagram of another embodiment of this invention. In the figure, 2 is a yoke, 7 and 8 are field poles, and 7a is a protruding pole arc portion. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A T-shaped field magnetic pole fixed to the inner peripheral surface of a cylindrical yoke, and a field coil wound around the iron core of the field magnetic pole, which acts on the field magnetic pole. The radial thickness of the tip part on the increasing side of the reaction magnetic flux (the protruding pole arc part protruding from the iron core in the rotational direction) is set to be larger than the thickness of the tip part on the demagnetizing side to reduce magnetic resistance. A starter motor characterized by