客服热线:18202992950

Permanent magnet rotor 发明授权

2023-10-20 2150 110K 0

专利信息

申请日期 2025-07-10 申请号 JP10377743
公开(公告)号 JP4299391B2 公开(公告)日 2009-07-22
公开国别 JP 申请人省市代码 全国
申请人 AICHI EMERSON ELECTRIC CO LTD
简介 PROBLEM TO BE SOLVED : To prevent the demagnetization of a permanent magnet, to prevent the failure of a sensorless start due to a reduction in the amount of a main magnetic flux, to prevent an increase in a starting current, and to prevent a drop in the efficiency of a motor in a permanent-magnet rotor which is constituted by burying a permanent magnet in every pole so as to be a concave shape toward the outer circumferential part of a rotor core. SOLUTION : Groove parts 20 which are cut out toward end parts are formed in such a way that narrow-width core parts are left between end parts of permanent magnets 3a, 3b on the outer circumferential part of every rotor core 2a. As a permanent magnet, a ferrite magnet material or a rare-earth magnet material is used. As its cross-sectional shape, a nearly arcuate shape, a nearly chevron shape or the like can be selected. The proper number of layers is buried and constituted in the radial direction of a rotor in every pole.


您还没有登录,请登录后查看下载地址


反对 0举报 0 收藏 0 打赏 0评论 0
下载排行
网站首页  |  关于我们  |  联系方式  |  使用协议  |  版权隐私  |  网站地图  |  排名推广  |  广告服务  |  积分换礼  |  网站留言  |  RSS订阅  |  违规举报  |  京ICP备2021025988号-4