JPH0350943U

JPH0350943U -

Info

Publication number: JPH0350943U
Application number: JP11222589U
Authority: JP
Priority date: 1989-09-26
Filing date: 1989-09-26
Publication date: 1991-05-17
Anticipated expiration: 2004-09-26
Also published as: JP2527656Y2

Description

[Brief explanation of drawings]

第１図は、本考案の一実施例を示す縦断面図、
第２図は、その非磁性材料製の円板を示すもので
、ａは平面図、ｂはａのＡ−Ａ断面図、ｃは底面
図、第３図は、成形金型に装着された状態を示す
縦断面図、第４図は、一般例を示す斜視図、第５
図は、本願出願人が先に提案したものの部分的に
切欠いた斜視図、第６図は、その成形状態を説明
する説明図である。１……永久磁石回転子、２……回転子軸、３…
…ヨーク、３ｄ……貫通孔、４ａ乃至４ｄ……セ
グメント磁石、５……非磁性材料製の円板、５ｄ
……貫通孔、５ｋ……挿通孔、６……成形樹脂層
、６ｋ……挿通孔、Ｕ……上型、Ｕｔ……金型突
部、Ｌ……下型、Ｌｔ……金型突部。 FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention;
Figure 2 shows the disc made of non-magnetic material, a is a plan view, b is a cross-sectional view taken along line A-A of a, c is a bottom view, and Figure 3 is a disk mounted in a mold. FIG. 4 is a longitudinal sectional view showing the state, and FIG. 5 is a perspective view showing a general example.
The figure is a partially cutaway perspective view of the device previously proposed by the applicant, and FIG. 6 is an explanatory diagram illustrating its molded state. 1...Permanent magnet rotor, 2...Rotor shaft, 3...
...Yoke, 3d...Through hole, 4a to 4d...Segment magnet, 5...Disc made of non-magnetic material, 5d
...Through hole, 5k...Through hole, 6...Molding resin layer, 6k...Through hole, U...Upper die, Ut...Mold protrusion, L...Lower die, Lt...Mold protrusion Department.

Claims

[Claim for Utility Model Registration] Formed by a plurality of segment magnets in the shape of circular arc plates, the outer peripheral surface of a yoke made of magnetic material fixed to the outer periphery of the rotor shaft, and the side surfaces of holding protrusions that protrude radially. A disk made of a non-magnetic material with an outer diameter approximately equal to or slightly smaller than the outer diameter of the holding protrusion is placed on both outer surfaces of the segment magnet and yoke in the axial direction, and the axis of the disk is direction outer surface;
In a permanent magnet rotor in which a molded resin layer of thermosetting resin is formed on the outer circumferential surface that is continuous with this, on the gap between the segment magnet and the holding protrusion, and on the through hole in which the yoke and the disc communicate, A plurality of insertion holes for the mold protrusions are formed in the plate and the molded resin layer at positions that do not overlap with the through holes of the disk and overlap with the end faces of the segment magnets and the yoke so as to communicate with each other. Permanent magnet rotor.