JPS5918568U

JPS5918568U - small synchronous motor

Info

Publication number: JPS5918568U
Application number: JP11227082U
Authority: JP
Inventors: 森山　良男
Original assignee: オムロン株式会社
Priority date: 1982-07-24
Filing date: 1982-07-24
Publication date: 1984-02-04

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図及び第２図は従来の磁極片の構成を示す斜視図、
第３図ａ、　　ｂは従来の磁極片の突き起し手順を示す
側断面図、第４図ａ、　　ｂ、　　ｃは、第１図及び第
２図に示した磁極片に対応した回転子との関係を示す上
面図で、同ａはカエリ面側の側面が回転子に対向してい
る場合で、同すはブレの発生した側の側面が回転子に対
向している場合を示し、同図Ｃは本考案に係る同期電動
機に用いる磁極片と回転子の関係を示す上面図、第５図
は本考案の一実施例である小型同期電動機の側断面図、
第６図ａ”−ｄは同小型同期電動機に用いる磁極片の形
成手順を示す側断面図である。２０・・・回転子、２３・・・底板、２７・・・コイル
、２８・・・切起片、２９・・・先端、３０・・・側面
（カエリ面）、３１・・・外周面、３２・・・ダイス。２３　　３１勇４図FIGS. 1 and 2 are perspective views showing the configuration of a conventional magnetic pole piece;
Figures 3a and 3b are side sectional views showing the conventional protrusion procedure for magnetic pole pieces, and Figures 4a, b, and c are rotors and rotors corresponding to the magnetic pole pieces shown in Figures 1 and 2. Fig. 3 is a top view showing the relationship between the above and Fig. 1A, Fig. 1A shows the case where the side surface on the burr side faces the rotor, Fig. Figure C is a top view showing the relationship between the magnetic pole piece and rotor used in the synchronous motor according to the present invention, and Figure 5 is a side sectional view of a small synchronous motor that is an embodiment of the present invention.
6a"-d are side sectional views showing the procedure for forming magnetic pole pieces used in the same small synchronous motor. 20...rotor, 23...bottom plate, 27...coil, 28... Cut and raised piece, 29...Tip, 30...Side surface (burr surface), 31...Outer circumferential surface, 32...Dice. 23 31 Figure 4

Claims

[Scope of utility model registration request]

In a small synchronous motor, a plurality of strip-shaped cut and raised pieces are erected on the bottom plate of the motor case that houses the rotor and coils, and are formed into a group of magnetic pole pieces surrounding the outer periphery of the rotor. A plurality of cut pieces formed radially outward with the child shaft center as the center are pushed up to form a magnetic pole piece group, and the tip of each cut piece is folded back 180 degrees inward and pushed out using a die. A small synchronous motor characterized by having the side surface facing the outer peripheral surface of the rotor.