JPH0350941U

JPH0350941U -

Info

Publication number: JPH0350941U
Application number: JP11222389U
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: JP2526143Y2

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は断面図、第３図は、その成形
状態を説明する説明図、第４図は、その要部拡大
図、第５図は、一般例を示す斜視図、第６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７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、４ａ乃至４ｄ……セグメント磁石、５
……非磁性材料製の円板、５ｅ……端面、５ｆ…
…隆起部、５ｇ……周溝、５ｈ……外方側の端面
、５ｊ……内方側端面、６……熱硬化性樹脂の成
形樹脂層。 FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention;
Fig. 2 shows the disk made of non-magnetic material, a is a plan view, b is a sectional view, Fig. 3 is an explanatory diagram explaining its molded state, and Fig. 4 is its main part. An enlarged view, FIG. 5 is a perspective view showing a general example, and FIG. 6 is a
FIG. 7, a partially cutaway perspective view of the device previously proposed by the applicant of the present application, is an explanatory diagram illustrating its molded state. 1...Permanent magnet rotor, 2...Rotor shaft, 3...
...Yoke, 4a to 4d...Segment magnet, 5
... Disk made of non-magnetic material, 5e ... End surface, 5f ...
...Protuberance, 5g... Circumferential groove, 5h... Outer end surface, 5j... Inner end surface, 6... Molded resin layer of thermosetting resin.

Claims

[Claim for Utility Model Registration] A plurality of segment magnets in the shape of circular arc plates are formed by 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 continuous outer circumferential surface and in the gap between the segment magnets and the holding protrusions, the end face of the disc with the circumferential groove is formed of molded resin. A protrusion protruding from the axial side surface of the layer is formed inward from the gate position of the molding die, and furthermore, the outer end surface with respect to the circumferential groove is formed so that it can be deformed under pressure by the mold surface. A permanent magnet rotor.