JPS60135071U

JPS60135071U - brushless motor

Info

Publication number: JPS60135071U
Application number: JP2316484U
Authority: JP
Inventors: 優田中
Original assignee: 三洋電機株式会社
Priority date: 1984-02-20
Filing date: 1984-02-20
Publication date: 1985-09-07

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のブラシレスモータの断面図、第２図以下
の図面はこの考案のブラシレスモータの　　　゛実施例
を示し、第２図および第３図は１実施例を示し、第２図
は断面図、第３図ａおよびｂは素子支持金具の正面図お
よび側面図、第４図ａおよびｂは他の実施例の素子支持
金具の正面図および側面図である。１・・・固定子巻線、２・・・固定子鉄心、４・・・回
転子鉄心、５・・・永久磁石、７・・・位置検出素子、
９・・・空心部、１０．１０’・・・素子支持金具、１
０ａ、ＩＱａ’・・・リング部。Fig. 1 is a sectional view of a conventional brushless motor, Fig. 2 and the following drawings show an embodiment of the brushless motor of this invention, Fig. 2 and 3 show one embodiment, and Fig. 2 is a sectional view. 3A and 3B are a front view and a side view of the element support fitting, and FIGS. 4A and 4B are a front view and a side view of the element support fitting of another embodiment. DESCRIPTION OF SYMBOLS 1... Stator winding, 2... Stator core, 4... Rotor core, 5... Permanent magnet, 7... Position detection element,
9...Air center part, 10.10'...Element support fitting, 1
0a, IQa'...Ring part.

Claims

[Scope of utility model registration request]

A rotor core is provided inside an annular stator core provided with stator windings, and a permanent magnet is integrally attached to the outer periphery of the rotor core to face the stator core with a gap therebetween, and In a brushless motor provided with a position detection element for detecting the rotational position of a permanent magnet, the rotor core is formed shorter than the permanent magnet in the axial direction to form an air core portion at one end side of the permanent magnet, and the air core A brushless motor, wherein a solid ring made of a magnetic material is disposed coaxially in the air-core part, and the position detection element is integrally attached to the outer peripheral surface of the ring in the air core part.