JPH0428745U

JPH0428745U -

Info

Publication number: JPH0428745U
Application number: JP5372490U
Authority: JP
Priority date: 1990-05-22
Filing date: 1990-05-22
Publication date: 1992-03-06

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す正面図、第２図
はその側面図、第３図ａ，ｂは鉄心片の形状の説
明図である。１……回転子、２，２ａ，２ｂ……鉄心片、３
，３ａ，３ｂ……積層片、３１，３２……突起部
、４……回転軸、５……ブツシユ、６……永久磁
石。 FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a side view thereof, and FIGS. 3a and 3b are explanatory views of the shape of the iron core piece. 1... Rotor, 2, 2a, 2b... Iron core piece, 3
, 3a, 3b... Laminated piece, 31, 32... Projection, 4... Rotating shaft, 5... Bush, 6... Permanent magnet.

Claims

[Claims for Utility Model Registration] 1 An even number of laminated pieces formed by laminating fan-shaped iron core pieces in the axial direction and an even number of permanent magnets provided between the adjacent laminated pieces are arranged in an annular shape. In a permanent magnet rotor equipped with a permanent magnet rotor, an arc of the outer periphery of the core piece is formed with a curvature smaller than the radius of the rotor, and the position of the apex where the outer diameter is the largest is the center line of the core piece. The laminated piece is formed in a position offset to one side in the circumferential direction, and the laminated piece is formed in a position where the apex is offset to the other side in the circumferential direction from the center line of the iron core piece. A permanent magnet type rotor, characterized in that said pieces are arranged adjacent to each other in the axial direction of said rotor. 2. The permanent magnet type rotor according to claim 1, wherein one side of the two adjacently arranged laminated pieces is a laminated piece having the same structure as the other side and arranged upside down.