JPH0272671U

JPH0272671U -

Info

Publication number: JPH0272671U
Application number: JP15006588U
Authority: JP
Priority date: 1988-11-17
Filing date: 1988-11-17
Publication date: 1990-06-04

Description

[Brief explanation of drawings]

第１図から第３図は本考案の一実施例を示し、
第１図はモータ全体の縦断側面図、第２図はロー
タの縦断側面図、第３図はダミー部材の斜視図で
ある。第４図および第５図は本考案の他の実施例
を示し、第４図はロータの縦断側面図、第５図は
ダミー部材の斜視図である。第６図および第７図
は他のロータを示し、第６図は縦断側面図、第７
図は回転軸の斜視図である。第８図から第１１図
は従来例を示し、第８図は全体の縦断側面図、第
９図はロータの縦断側面図、第１０図はロータの
斜視図、第１１図はロータの分解斜視図である。
第１２図および第１３図は従来の他のロータを示
し、第１２図はロータの斜視図、第１３図はロー
タの縦断側面図である。１……巻線、２……巻き枠、３，４……ヨーク
、３ａ，４ａ……突極、５……ステータ、６……
モータフレーム、２１……ロータ、２２……回転
軸、２３……ダミー部材、２４……プラスチツク
マグネツト。 1 to 3 show an embodiment of the present invention,
FIG. 1 is a longitudinal sectional side view of the entire motor, FIG. 2 is a longitudinal sectional side view of the rotor, and FIG. 3 is a perspective view of a dummy member. 4 and 5 show other embodiments of the present invention, in which FIG. 4 is a longitudinal sectional side view of the rotor, and FIG. 5 is a perspective view of a dummy member. 6 and 7 show other rotors, FIG. 6 being a vertical side view, and FIG.
The figure is a perspective view of the rotating shaft. Fig. 8 to Fig. 11 show a conventional example, Fig. 8 is a longitudinal side view of the whole, Fig. 9 is a longitudinal side view of the rotor, Fig. 10 is a perspective view of the rotor, and Fig. 11 is an exploded perspective view of the rotor. It is a diagram.
FIGS. 12 and 13 show other conventional rotors, with FIG. 12 being a perspective view of the rotor and FIG. 13 being a longitudinal sectional side view of the rotor. 1... Winding wire, 2... Winding frame, 3, 4... Yoke, 3a, 4a... Salient pole, 5... Stator, 6...
Motor frame, 21...rotor, 22...rotating shaft, 23...dummy member, 24...plastic magnet.

Claims

[Scope of Claim for Utility Model Registration] Two yokes formed by fitting a winding frame around which a winding wire is wound, and a pair of yokes each having comb-like salient poles inserted alternately along the inner surface of the body of the winding frame. PM type stepping, in which two sets of stators are stacked and housed in a motor frame, and a rotor, which is arranged inside the two sets of stators and whose outer circumference is magnetized, is rotatably supported by the motor frame. In the motor, the rotor is provided with a rotating shaft, a cylindrical dummy member arranged concentrically outside the rotating shaft, and the dummy member and the rotating shaft are embedded by molding, and the rotor is connected to the rotating shaft. A PM type stepping motor characterized in that it is formed from a plastic magnet integrally connected to a dummy member.