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发明名称
节能、调速、力矩消磁电磁铁
摘要
本发明提出了一种新的节能、启动速度可调以及采用力矩消除剩磁的电磁铁。该电磁铁有三特点:其一是微分电路的时间常数调节电位器采用并联方式,从而使调节范围大,时间常数容易稳定;其二是阻容电路有晶闸管保护、电源滤波以及振荡消磁三种作用;其三是采用力矩致衔铁相对铁芯产生微小摆动(或转动)方法来消除剩磁。
申请公布号
CN1050642A
申请公布日期
1991.04.10
申请号
CN90109015.8
申请日期
1990.11.15
申请人
蔡礼君
发明人
蔡礼君;沈福祯;邓警玲
分类号
H01F7/08;H01F7/18
主分类号
H01F7/08
代理机构
代理人
主权项
1、一种节能、调速、力矩去磁电磁铁,包括供电系统、线圈、铁芯衔铁四部分,其特征是:触发晶闸管的微分电路中调速电位器采用并联方式,微分电路的直流源有滤波装置,所述线圈一侧并联阻容电路,使用断电后衔铁相对铁芯做微转动方法消除剩磁,释放动作始于这个转动。
地址
100081北京市北京理工大学91单元144
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