JPS60138346U

JPS60138346U - Electric motor

Info

Publication number: JPS60138346U
Application number: JP2301384U
Authority: JP
Inventors: 石原　和男; 大野　吉之助; 速水　孝
Original assignee: 国産電機株式会社
Priority date: 1984-02-22
Filing date: 1984-02-22
Publication date: 1985-09-13

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図は従来の電動機の要部を示す断面図、第２図は本
考案の一実施例を示した半部断面図、第３図は本考案で
用いるカバーの底部に設ける軸受保持部の一構成例を示
した正面図、第４図は第３図のＩＶ−ＩＶ線断面図、第
５図は同軸受保持部を成形する際の最初の工程で形成さ
れる皿状部の形状、を示した断面図、第６図は第５図の
工程の次の工程における加工状態を系した正面図である
。１０・・・固定子、１３・・・回転子、１６・・・回転
軸、２０・・・カバー、２１・・・軸受は保持部、２１
ａ・・・環状突出部、２１ｂ・・・弧状切起し部、２１
ｃ・・・平坦部。　　　　、Fig. 1 is a sectional view showing the main parts of a conventional electric motor, Fig. 2 is a half sectional view showing an embodiment of the present invention, and Fig. 3 is a sectional view of a bearing holder provided at the bottom of the cover used in the present invention. A front view showing one configuration example, FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3, and FIG. FIG. 6 is a front view showing the processing state in the next step after the step shown in FIG. 5. DESCRIPTION OF SYMBOLS 10... Stator, 13... Rotor, 16... Rotating shaft, 20... Cover, 21... Bearing is a holding part, 21
a... Annular protrusion, 21b... Arc-shaped cut and raised part, 21
c... Flat area. ,

Claims

[Scope of utility model registration request]

゛A cover press-molded into a substantially cup shape so as to cover the axial ends of the stator and rotor is attached to the axial end of the stator, and the bearing is attached to the bearing holding part integrally provided at the bottom of the cover. In the electric motor, the shaft of the rotor is supported by the bearing. a plurality of arcuate cut-and-raised portions provided at predetermined intervals in the circumferential direction on the inner periphery of the annular protrusion; and a flat part protruding radially inward from the inner peripheral part, the plurality of cut and raised parts are provided so as to be located on a cylindrical part that shares an axis with the rotor, and the bearing An electric motor, characterized in that the electric motor is fitted and held inside an arcuate cut-and-raised portion of the motor, and is positioned in the axial direction by abutting the flat portion.