公开(公告)号：US11522433B2

公开(公告)日：2022-12-06

申请号：US16896636

申请日：2020-06-09

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Lukas Bentfeld ,  Uwe Pruessmeier

IPC: H02K41/03 ,  H02K11/33 ,  H02K3/50

Abstract: A stator module for two-dimensionally driving a rotor having first and second magnet units includes a stator assembly with first and second stator segments configured for interacting with drive magnets of the first and second magnet units. The individual stator segments can each be energized independently from the remaining stator segments. The stator assembly includes first, second, third and fourth stator sectors. The first stator segments of the individual stator sectors each extend in a second direction over all second stator segments of the relevant stator sector, arranged side by side, and the second stator segments of the individual stator sectors each extend in a first direction over all first stator segments of the relevant stator sector arranged side by side. Extensions of the stator sectors in the first and second directions are respectively smaller than extensions of a magnet arrangement including the first and second magnet units.

公开(公告)号：US11296571B2

公开(公告)日：2022-04-05

申请号：US17112046

申请日：2020-12-04

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Lukas Bentfeld ,  Uwe Prüssmeier

IPC: H02K3/47 ,  H02K41/03

Abstract: A stator assembly for driving a rotor of a planar electrical motor includes longitudinal stator layers with first coil conductors and inclined stator layers with second coil conductors. The first coil conductors extend in an elongated manner in a first direction, and the second coil conductors extend in an elongated manner in a second direction, different from the first direction. The longitudinal and inclined stator layers are arranged on top of one another in a third direction, oriented perpendicularly to the first and second direction. An uppermost and lowermost stator layer of the stator assembly are each formed as a longitudinal stator layer with first coil conductors. The longitudinal stator layers are arranged in the third direction at most on one side next to an inclined stator layer, and the inclined stator layers are arranged in the third direction at most on one side next to a longitudinal stator layer.

公开(公告)号：US20200321846A1

公开(公告)日：2020-10-08

申请号：US16890887

申请日：2020-06-02

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Lukas Bentfeld ,  Jörg Neufeld

IPC: H02K41/03 ,  H02K5/18 ,  H02K9/18 ,  H02K9/22 ,  H02K11/215

Abstract: A stator module is disclosed, and a planar drive system with a stator module. The stator module has a lower face opposite an upper face, a stator unit situated on the upper face, and a cooling unit. The stator unit has a coil to which current can be supplied to generate a magnetic field to drive a mover, positionable on the upper face of the stator module. The cooling unit has a cover thermally connected to a lower face of the stator unit and to the bottom of the housing. The bottom of the housing has a first fastening section on the lower face of the stator module, thermally connectable to a heat sink. The cover is designed to conduct heat out of the stator unit to the bottom of the housing, which is designed to conduct the heat at least partially to the first fastening section.

公开(公告)号：US20200304007A1

公开(公告)日：2020-09-24

申请号：US16892681

申请日：2020-06-04

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Lukas Bentfeld ,  Uwe Pruessmeier

IPC: H02K41/03 ,  H02K11/33

Abstract: A stator module for driving a rotor of an electrical planar-drive system comprises a power module, a stator assembly arranged on a top surface of the power module, and a connector. The power module is embodied to provide drive currents for driving the rotor. The stator assembly comprises coil conductors electrically connected to the power module via the connector for charging with the drive currents. The power module and the stator assembly each have a plate-shaped embodiment. The power module is mechanically fastened to the stator assembly by the connector. The stator assembly comprises a contact structure with contact holes arranged side by side, and the power module comprises a connecting arrangement with further contact holes arranged side by side. The connector comprises contact pins arranged side by side to engage in the further contact holes of the connecting arrangement, and in the contact holes of the contact structure.

公开(公告)号：US20200303997A1

公开(公告)日：2020-09-24

申请号：US16897985

申请日：2020-06-10

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Lukas Bentfeld ,  Uwe Pruessmeier

IPC: H02K11/215 ,  H02K1/20 ,  G01R33/00 ,  G01R33/07 ,  G01R33/02

Abstract: A planar-drive system includes a rotor and stator module with a housing, a stator assembly for driving the rotor, and a sensor module for detecting the rotor position. The sensor module has a 2D arrangement of magnetic-field sensors arranged on a carrier in first and second periodic grids, extending in first and second directions. Adjacent magnetic-field sensors are arranged at first and second distances in the first and second directions. The grids are shifted by a vector having first and second components smaller than the respective first and a second distances. The rotor has first and second magnet units, each with an arrangement of magnets with first and second periodic lengths aligned in the first and second directions. The first and second components of the vector, and a difference between the first and second distances and the respective components, are each smaller than the respective first and second periodic lengths.