公开(公告)号：US20110056786A1

公开(公告)日：2011-03-10

申请号：US12812209

申请日：2009-01-19

申请人： Lennart Stridsberg ,  Fredrik Rooth

发明人： Lennart Stridsberg ,  Fredrik Rooth

IPC分类号： F16D65/27 ,  F16D51/10

CPC分类号： H02K7/1023 ,  F16D51/00 ,  F16D51/20 ,  F16D2121/20 ,  F16D2121/22

摘要： An electrically controlled brake includes a rotatable first mechanical system and a second mechanical system that is stationary or fixed. The two systems have friction surfaces/parts that can be made to come in engagement with each other, providing a braking effect, and be withdrawn from each other releasing the braking effect. In the second system, windings can be wound around two braking shoes made from soft magnetic material so that an electric current flowing in the windings affects magnetic fluxes through the soft magnetic parts to move at least one thereof. The movement is in a direction that affects the effective width of an air gap in the closed main magnetic path. The electric current gives attraction forces over the air gap which tend to move the braking shoes to reduce the length of the air gap. A spring that e.g. can be a flat spring is rigidly mounted to inner ends of the braking shoes, creating forces on the braking shoes acting in a direction substantially opposite that of the attraction forces. The spring and the braking shoes form a unified structure that via a portion of the spring is rigidly attached to a stationary component of the brake, such as through a bar. Since the movements of the braking shoes are not performed about some shaft or articulation, there is no mechanical play in the brake.

摘要翻译： 电控制动器包括可旋转的第一机械系统和静止或固定的第二机械系统。 这两个系统具有能够相互接合的摩擦表面/部件，提供制动效果，并相互取出释放制动效果。 在第二系统中，绕组可以缠绕在由软磁材料制成的两个制动踏板上，使得在绕组中流动的电流影响通过软磁部件的磁通量以移动其中的至少一个。 运动是影响封闭主磁路中气隙的有效宽度的方向。 电流使空气间隙产生吸引力，该气隙倾向于移动制动靴以减小气隙的长度。 春天，例如 可以将扁平弹簧刚性地安装到制动靴的内端，在制动靴上产生沿与吸引力大致相反的方向作用的力。 弹簧和制动靴形成统一的结构，其通过弹簧的一部分刚性地附接到制动器的固定部件，例如通过杆。 由于制动踏板的运动不是关于某些轴或铰接件的运动，所以在制动器中没有机械的作用。