JPH0414447U

JPH0414447U -

Info

Publication number: JPH0414447U
Application number: JP5489390U
Authority: JP
Priority date: 1990-05-25
Filing date: 1990-05-25
Publication date: 1992-02-05

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例の回転子の断面図
、第２図は第１図のＡ−Ａ断面を示した断面図、
第３図はこの考案の一実施例による補助ヨークの
斜視図、第４図は第３図の補助ヨークの挿入され
る回転軸の断面図、第５図は従来の永久磁石回転
子の断面側面図、第６図はその回転子のヨークを
示す断面図である。図において、１，５は永久磁石、２は積層鉄心
ヨーク、３は補助ヨーク、４，７は回転軸、６は
ヨークである。なお、図中、同一符号は同一、又
は相当部分を示す。 FIG. 1 is a sectional view of a rotor according to an embodiment of this invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1,
Fig. 3 is a perspective view of an auxiliary yoke according to an embodiment of this invention, Fig. 4 is a cross-sectional view of the rotating shaft into which the auxiliary yoke of Fig. 3 is inserted, and Fig. 5 is a cross-sectional side view of a conventional permanent magnet rotor. 6 are cross-sectional views showing the yoke of the rotor. In the figure, 1 and 5 are permanent magnets, 2 is a laminated iron core yoke, 3 is an auxiliary yoke, 4 and 7 are rotating shafts, and 6 is a yoke. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

In a permanent magnet rotor in which a plurality of permanent magnets are arranged on the outer circumferential surface of a yoke at predetermined intervals in the circumferential direction, the yoke has a laminated core having the same width as the stator core and a plurality of permanent magnets. Identical magnets that are arranged at both ends in the longitudinal direction and have notches on the outer circumferential side that support both circumferential ends and longitudinal end faces of each of the permanent magnets, and have protrusions on the inner circumference that fit into grooves provided in the longitudinal direction of the rotating shaft. A permanent magnet rotor consisting of two auxiliary yokes.