公开(公告)号：US20130027833A1

公开(公告)日：2013-01-31

申请号：US13556719

申请日：2012-07-24

申请人： Frank Rabe ,  Kathrin Steinhuber

发明人： Frank Rabe ,  Kathrin Steinhuber

IPC分类号： H01H47/22 ,  H01H50/12 ,  H01F7/08

CPC分类号： H01F7/1646 ,  H01F2007/1676

摘要： An electromagnetic actuator operating like a holding magnet includes an anisotropic permanent magnet connected with a ferromagnetic yoke, an electromagnet and a ferromagnetic armature that is movable relative to the electromagnet. The yoke is cup-shaped and has a circular, elliptical or polygonal cross-section to reduce magnetic stray flux. All the aforementioned components are arranged coaxially with respect to a column-shaped core. The periphery of the yoke includes at least one opening configured for passage of the electrical conductors controlling the electromagnet. The opening also enables pressure equalization and vapor diffusion between the interior space of the actuator and the environment. The opening is oriented in the magnetic flux direction and is constructed to reduce eddy currents. The actuator also includes components forming an electrical freewheel circuit or an electrical energy store circuit.

摘要翻译： 操作类似保持磁体的电磁致动器包括与铁磁轭相连的各向异性永久磁铁，可相对于电磁体移动的电磁体和铁磁电枢。 轭是杯形的并且具有圆形，椭圆形或多边形的横截面以减少磁性杂散通量。 所有上述部件相对于柱状芯线同轴配置。 磁轭的周边包括至少一个开口，其构造成用于通过控制电磁体的电导体。 该开口还可以实现致动器的内部空间与环境之间的压力平衡和蒸汽扩散。 开口在磁通方向上定向，构造成减小涡流。 致动器还包括形成电动自由电路或电能存储电路的部件。