JPS60174476U - Axial gap type electric motor - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の軸方向空隙型ブラシレス電動機に用いら
れている一例としての電機子の平面図、第２図は第１図
の場合の電機子コイルの重なり具合の説明図、第３図は
界磁マグネットと電機子との展開図、第４図は従来のト
ロイダル巻線を有する軸方向空隙型ブラシレス電動機の
縦断面図、第５図は第４図の分解斜視図、第６図及び第
７図は第４図の電機子の巻線方法の説明図、第８図は界
磁マグネットと電機子との展開図、第９図は従来の軸方
向空隙型ブラシレス電動機の縦断面図、第１０図は第９
図のステータ電機子の平面図、第１１図は本考案の第一
実施例の縦断面図、第１２図は第１１図のステータヨー
クの一部縦断面図、第１３図乃至第１６図はそれぞれ本
考案の第二実施例乃至第五実施例の縦断面図である。 １’−１，１’−２，１“−１，１“−２・・・界磁マ
グネット、２’、２“ユ　２　ｎｒ・・・ステータ電機
子、１４’、１４“・・・ステータヨーク、３４−１、
・・・、３４−５・・・軸方向空隙型ブラシレス電動機
、４２．４２’・・・界磁エアーギャップ。 第　７図 第８図 一−Ｌ−一一一一一一一一−」 第１Ｏ図Figure 1 is a plan view of an armature as an example used in a conventional axial gap type brushless motor, Figure 2 is an explanatory diagram of how the armature coils overlap in the case of Figure 1, and Figure 3 is an illustration of how the armature coils overlap in the case of Figure 1. FIG. 4 is a longitudinal sectional view of a conventional axial gap type brushless motor with toroidal windings, FIG. 5 is an exploded perspective view of FIG. 4, and FIGS. Figure 7 is an explanatory diagram of the armature winding method in Figure 4, Figure 8 is a developed view of the field magnet and armature, Figure 9 is a vertical cross-sectional view of a conventional axial gap type brushless motor, Figure 10 is the 9th
11 is a vertical sectional view of the first embodiment of the present invention, FIG. 12 is a partial longitudinal sectional view of the stator yoke of FIG. 11, and FIGS. 13 to 16 are FIG. 7 is a vertical sectional view of a second embodiment to a fifth embodiment of the present invention, respectively; 1'-1, 1'-2, 1"-1, 1"-2... Field magnet, 2', 2" 2 nr... Stator armature, 14', 14"... Stator York, 34-1;
..., 34-5... Axial gap type brushless electric motor, 42.42'... Field air gap. Figure 7 Figure 8 1-L-1111111-'' Figure 1O

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] Ｎ、　Ｓの磁極を交互に有するフラット２Ｐ　（Ｐは１
以上の正の整数）極の界磁マグネットと、円環状ヨーク
に多数ターン導線をトロイダル状に巻回して形成した電
機子とが面対向して有し、いずれか一方を回転子とし、
他方を固定子とした軸方向空隙型電動機において、界磁
マグネットと電機子面とのエアーギャップが均−又はほ
ぼ均一の厚みとなるように界磁マグネットを半径内側方
向に至るに従って厚みを薄く形成するか、上記円環状ヨ
ークを半径内側方向に至るに従って厚みを薄く形成する
か若しくはこれと同機能を有するように上記円環状ヨー
クを内側方向に至るに従って凹部の深さを増加するよう
に形成してなることを特徴とする軸方向空隙型電動機。Flat 2P with alternating N and S magnetic poles (P is 1
The above positive integer) pole field magnet and an armature formed by winding a multi-turn conducting wire in a toroidal shape around an annular yoke face each other, one of which is used as a rotor,
In an axial gap type electric motor with the other side as a stator, the thickness of the field magnet is made thinner toward the radial inner side so that the air gap between the field magnet and the armature surface has an even or almost uniform thickness. Alternatively, the annular yoke may be formed so that its thickness becomes thinner as it approaches the radial inner side, or the annular yoke may be formed so that the depth of the recess increases as it approaches the inner side so as to have the same function. This is an axial gap type motor that is characterized by the following characteristics: