JPS5856577U

JPS5856577U - synchronous motor

Info

Publication number: JPS5856577U
Application number: JP14908481U
Authority: JP
Inventors: 恭一岡田
Original assignee: 株式会社東芝
Priority date: 1981-10-06
Filing date: 1981-10-06
Publication date: 1983-04-16

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 drawings]

第１図乃至第４図は本考案の第１実施例を説明するため
のもので、第１図は全体の縦断面図、第２図ａ、　ｂは
夫々第１図中のａ−ａ線、ｂ−ｂ線に沿った断面図、第
３図は鉄心の分解斜視図、第４図はトルク特性曲線図で
ある。また、第５図及び第６図は夫々本考案の第２及び
第３実施例における鉄心の斜視図である。図中、７はかご形回転子１．８は永久磁石形回転子、９
．１９．２０は鉄心、Ａは磁気抵抗が大なる部分、Ｂは
磁気抵抗が小なる部分、１５は空隙部（溝状部）、２０
ａはスロット、２１はＶ字溝（溝状部）である。1 to 4 are for explaining the first embodiment of the present invention, FIG. 1 is a longitudinal sectional view of the whole, and FIGS. 2 a and 2 are taken along the line a-a in FIG. 1. , FIG. 3 is an exploded perspective view of the iron core, and FIG. 4 is a torque characteristic curve diagram. 5 and 6 are perspective views of the iron core in the second and third embodiments of the present invention, respectively. In the figure, 7 is a squirrel cage rotor, 8 is a permanent magnet rotor, and 9 is a squirrel cage rotor.
．． 19. 20 is the iron core, A is the part where the magnetic resistance is large, B is the part where the magnetic resistance is small, 15 is the void part (groove part), 20
a is a slot, and 21 is a V-shaped groove (groove-shaped portion).

Claims

[Scope of Claim for Utility Model Registration] 1. A permanent magnet rotor for synchronous operation and a squirrel-cage rotor for starting are arranged coaxially, and the iron core of the squirrel-cage rotor has a Parts with high magnetic resistance and parts with low magnetic resistance are formed alternately in the circumferential direction, and
A synchronous motor characterized in that the portion where the magnetic resistance is small and the magnetic pole portion of the permanent magnet rotor are in the same phase position. -2 The synchronous electric motor according to claim 1, which is a registered utility model, characterized in that a groove-like portion extending in the axial direction of the p-iron core of the squirrel-cage rotor forms a portion having a large magnetic resistance. 3. The synchronous motor according to claim 1 of the utility model registration, characterized in that a portion having a large magnetic resistance is formed by changing the distribution of a plurality of slots in the iron core of the squirrel cage trochanter.