JPH0214253U

JPH0214253U -

Info

Publication number: JPH0214253U
Application number: JP9346988U
Authority: JP
Priority date: 1988-07-13
Filing date: 1988-07-13
Publication date: 1990-01-29

Description

[Brief explanation of drawings]

第１図は本考案の実施例によるブラシレスモー
タの横断面図、第２図は第１図に部分拡大断面図
、第３図は本考案の実施例によるコイルの彎曲変
形前の状態を示す横断面図、第４図は本考案の実
施例によるコイルを示す横断面図、第５図は本考
案のコイルを巻くための中子を示す断面図、第６
図は本考案のコイルをプレスするための下型と上
型を示す断面図、第７図は円筒対向型ブラシレス
モータを示す分解斜視図、第８図はその縦断面図
、第９図は本考案のコイルの他の使用例を示すも
のであり、光学式ピツクアツプのレンズホルダを
示す斜視図、第１０図は従来のコイルを使用した
円筒対向型ブラシレスモータの縦断面図、第１１
図は第１０図の一部拡大断面図、第１２図は従来
のコイルを示す横断面図である。１……回転軸、２……ロータヨーク、３……ロ
ータマグネツト、４……ステータコア、２０……
ステータコイル（本考案のコイル）、Ａ……中空
部、１０ａ……駆動力発揮部、イ……内側面、ロ
……外側面。 FIG. 1 is a cross-sectional view of a brushless motor according to an embodiment of the present invention, FIG. 2 is a partially enlarged cross-sectional view of FIG. FIG. 4 is a cross-sectional view showing a coil according to an embodiment of the present invention; FIG. 5 is a cross-sectional view showing a core for winding the coil of the present invention; FIG.
The figure is a sectional view showing the lower die and upper die for pressing the coil of the present invention, Fig. 7 is an exploded perspective view showing the cylindrical opposed brushless motor, Fig. 8 is its longitudinal sectional view, and Fig. 9 is the main die. 10 is a perspective view showing a lens holder of an optical pickup; FIG. 10 is a vertical sectional view of a cylindrical opposed brushless motor using a conventional coil; FIG.
The figure is a partially enlarged cross-sectional view of FIG. 10, and FIG. 12 is a cross-sectional view showing a conventional coil. 1...Rotating shaft, 2...Rotor yoke, 3...Rotor magnet, 4...Stator core, 20...
Stator coil (coil of the present invention), A...Hollow part, 10a...Driving force producing part, A...Inner surface, B...Outer surface.

Claims

[Claims for Utility Model Registration] 1. The product has a hollow portion and is wound around the vehicle, and two opposing locations sandwiching the hollow portion are driving force exerting portions, and the driving force exerting portions are substantially parallel to each other. The entire coil is curved in a shape along a virtual cylindrical surface, and at least one of the inner surface on the hollow side of the driving force exerting portion or the outer surface of the coil on the opposite side to the inner surface is A coil that coincides with a radiation plane extending from the center of a virtual cylindrical surface. 2. Consisting of a cylindrical core and a magnet in which magnetic poles are arranged along a cylindrical surface facing the core and concentric with the core, the coil according to claim 1 is fixed to the outer circumferential surface or inner circumferential surface of the core. A motor in which either the core side or the magnet side is the rotor and the other is the stator.