公开(公告)号：US20090315424A1

公开(公告)日：2009-12-24

申请号：US12335986

申请日：2008-12-16

Applicant: ROLF VOLLMER

Inventor： ROLF VOLLMER

IPC: H02K1/27

CPC classification number: H02K1/278 ,  H02K29/03

Abstract: A permanent-magnet synchronous machine includes a stator that has slots and a rotor that has permanent magnets which form magnet poles. The permanent magnets are shell magnets having two curved surfaces. Each shell magnet covers a predetermined part of a magnet pole. The external radius of the shell magnets is less than 0.6 times the radius of the stator bore. Each shell magnet has a quasi-radial magnetic preferred direction that is directed substantially perpendicular to its outer surface.

Abstract translation: 永磁同步电机包括具有槽的定子和具有形成磁极的永磁体的转子。 永磁体是具有两个弯曲表面的壳体磁体。 每个壳体磁体覆盖磁极的预定部分。 外壳磁体的外半径小于定子孔径半径的0.6倍。 每个壳体磁体具有基本上垂直于其外表面的准径向磁性优选方向。

公开(公告)号：US20120038228A1

公开(公告)日：2012-02-16

申请号：US13027754

申请日：2011-02-15

Applicant: ROLF VOLLMER

Inventor： ROLF VOLLMER

IPC: H02K41/03

CPC classification number: H02K41/03 ,  H02K3/28

Abstract: To further reduce force ripple of a linear motor, a primary part has a plurality of windings sequentially arranged in an axial direction and subdivided in the axial direction into groups having an identical number of windings. The sequence of the association of the windings with the phases of a multi-phase system is not repeated at least in a group of windings within the primary part as long as the winding sense of the corresponding windings in the group is maintained.

Abstract translation: 为了进一步减少线性电动机的力波动，主要部件具有沿轴向顺序布置的多个绕组，并且沿轴向细分成具有相同数量绕组的组。 只要组中的相应绕组的绕组感应得到维持，至少在主要部分的一组绕组中不重复绕组与多相系统的相位的关联顺序。

公开(公告)号：US20100013332A1

公开(公告)日：2010-01-21

申请号：US12505882

申请日：2009-07-20

Applicant: ROLF VOLLMER

Inventor： ROLF VOLLMER

IPC: H02K7/09

CPC classification number: F16C32/0463 ,  F16C32/0457 ,  F16C32/048 ,  H02K7/09

Abstract: A magnetic radial bearing and a bearing system for supporting a rotating shaft are disclosed. The bearing has a number of electromagnets circumferentially arranged around a rotating shaft. Each of the electromagnets has a coil which is electrically connected so as to generate both a magnetic bias and a rotating three-phase field. First terminals of opposing coils are connected in common to a corresponding phase of a three-phase controller for generating the rotating field, whereas second terminals of the coils not connected to the same phase are connected at corresponding star points. The star points are connected to DC power for generating the magnetic bias.

Abstract translation: 公开了用于支撑旋转轴的磁径向轴承和轴承系统。 轴承具有围绕旋转轴周向布置的多个电磁体。 每个电磁体具有电连接的线圈，以便产生磁偏置和旋转三相场。 相对线圈的第一端子共同连接到用于产生旋转场的三相控制器的相应相位，而不连接到相位的线圈的第二端子连接在相应的星形点。 星点连接到直流电源以产生磁偏置。

公开(公告)号：US20090322174A1

公开(公告)日：2009-12-31

申请号：US12492312

申请日：2009-06-26

Applicant: UDO GROSSMANN ,  ROLF VOLLMER ,  MICHAEL ZASTROW

Inventor： UDO GROSSMANN ,  ROLF VOLLMER ,  MICHAEL ZASTROW

IPC: H02K1/17

CPC classification number: H02K29/03 ,  H02K1/278 ,  H02K21/16 ,  H02K2201/06

Abstract: In a three-phase permanent-magnet synchronous machine, a pole gap and a skew of permanent magnets on the rotor are designed such that oscillating torques which are caused by the fifth and seventh harmonics of the stator field and of the rotor field are mutually reduced. In particular, the skew can be chosen as a function of the pole gap, such that the majority of the respective oscillating torques is neutralized. This results in minimal torque ripple.

Abstract translation: 在三相永磁同步电机中，转子上的极间隙和永磁体的偏斜被设计成使得由定子磁场和转子磁场的第五和第七谐波引起的振荡转矩相互减小 。 特别地，可以选择偏斜作为极间隙的函数，使得大部分相应的振荡转矩被中和。 这导致最小的转矩波动。

公开(公告)号：US20090152959A1

公开(公告)日：2009-06-18

申请号：US12336046

申请日：2008-12-16

Applicant: ROLF VOLLMER

Inventor： ROLF VOLLMER

IPC: H02K41/03 ,  H02K57/00

CPC classification number: H02K41/031 ,  H02K1/2733 ,  H02K1/278 ,  H02K7/083 ,  H02K7/09 ,  H02K16/00 ,  H02K21/14 ,  H02K21/16 ,  H02K2201/18

Abstract: A secondary part of a linear drive, in particular of a cylindrical or planar linear drive, has permanent magnets arranged on a soft-magnetic mount in perpendicular relationship to the movement direction of the linear drive. The permanent magnets are curved at least on the surface facing the primary part. The permanent magnets cover each only a predeterminable part of a magnetic pole and have a radial magnetization direction in relation to their outer surface.

Abstract translation: 线性驱动器，特别是圆柱形或平面线性驱动器的次级部分具有布置在与线性驱动器的移动方向垂直的软磁安装件上的永磁体。 永磁体至少在面向主要部件的表面上弯曲。 永磁体仅覆盖磁极的可预定部分并具有相对于其外表面的径向磁化方向。