公开(公告)号：US12160141B2

公开(公告)日：2024-12-03

申请号：US17903429

申请日：2022-09-06

Applicant: Beckhoff Automation GmbH

Inventor： Lukas Bentfeld ,  Klaus Neumann ,  Keir Maguire ,  Dominik Sensen ,  Tim Kaulmann

IPC: H02P25/06 ,  B65G54/02 ,  G01D5/14 ,  G05D3/12 ,  H02K1/12 ,  H02K1/27 ,  H02K11/20 ,  H02K11/215 ,  H02K29/08 ,  H02K41/03 ,  H02P23/00 ,  H02P23/14 ,  H02P29/60

Abstract: A method for controlling a planar drive system includes determining values of magnetic stator fields for different energizing currents and spatial regions in a two-dimensional array of magnetic field sensors, generating at least one magnetic stator field by applying energizing currents to stator conductors to electrically control a rotor, determining measured values of a total magnetic field via the magnetic field sensors for a plurality of the spatial regions to determine a position of the rotor, compensating contributions of the magnetic stator fields to the measured values of the total magnetic field determined by the magnetic field sensors, generating measured values of the magnetic field determined by the respective magnetic field sensors for the respective space regions, and determining a position of the rotor based on the generated measured values of the magnetic fields. The planar drive system includes at least a controller, a stator module, and a rotor.

公开(公告)号：US12119774B2

公开(公告)日：2024-10-15

申请号：US17988079

申请日：2022-11-16

Applicant: Beckhoff Automation GmbH

Inventor： Lukas Bentfeld ,  Rolf Brinkmann ,  Patrick Jebramcik ,  Tim Kaulmann

IPC: H02K41/03 ,  H02P6/00 ,  H02P6/10 ,  H02P25/064

CPC classification number: H02P6/10 ,  H02P6/006 ,  H02P25/064

Abstract: A planar drive system comprises a stator and a rotor. The stator comprises a plurality of energizable stator conductors. The rotor comprises a magnet device having at least one rotor magnet. A magnetic interaction can be produced between energized stator conductors of the stator and the magnet device to drive the rotor. The stator is configured to carry out energization of the stator conductors so that an alternating magnetic field can be generated via the energized stator conductors. The rotor comprises at least one rotor coil in which an alternating voltage can be induced due to the alternating magnetic field. The planar drive system is configured to transmit data from the stator to the rotor, and the stator is configured to temporarily influence the energization of the stator conductors in order to temporarily cause a change with respect to the alternating voltage induced in the at least one rotor coil.

公开(公告)号：US20240178737A1

公开(公告)日：2024-05-30

申请号：US18432851

申请日：2024-02-05

Applicant: Beckhoff Automation GmbH

Inventor： Hans Beckhoff ,  Johannes Beckhoff ,  Jan Achterberg ,  Dominik Sensen ,  Lukas Bentfeld ,  Felix Schulte ,  Uwe Prüßmeier

IPC: H02K41/03 ,  H02K11/21

CPC classification number: H02K41/031 ,  H02K11/21 ,  H02K2201/18

Abstract: A planar drive system has at least one stator assembly with a plurality of coil groups for generating a stator magnetic field, a stator surface above the stator assembly, and first and second rotors. The rotors each have a plurality of magnet units for generating a rotor magnetic field. The rotors can be moved above the stator surface in first and second directions, with the aid of an interaction of the stator magnetic field with the rotor magnetic field. A connection can be formed between the rotors with the aid of a coupling device. A controller is arranged to output control signals to the stator assembly. The stator assembly is configured to energize the coil groups on the basis of the control signals so that movements of the rotors, coordinated with one another with respect to the coupling device, are carried out with the aid of the stator magnetic field.

公开(公告)号：US11936273B2

公开(公告)日：2024-03-19

申请号：US17121219

申请日：2020-12-14

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Uwe Prüssmeier ,  Lukas Bentfeld

IPC: H02K3/28 ,  H01F27/28 ,  H02K3/47 ,  H02K41/03 ,  H02P25/06

CPC classification number: H02K41/031 ,  H01F27/28 ,  H02K3/28 ,  H02K3/47 ,  H02P25/06 ,  H02K2201/18

Abstract: A stator assembly for a planar electrical motor includes coil conductors arranged in a stator layer, elongated in a first direction and arranged side by side in a second direction perpendicular to the first direction. The coil conductors are connected to form a three-phase system, with a first forward conductor and first return conductor of the first phase connected in series to the first forward conductor, a second forward conductor and second return conductor of the second phase connected in series with the second forward conductor, and a third forward conductor and third return conductor of the third phase connected in series with the third forward conductor. The three-phase system has first and second opposite sides. The first forward conductor and the first return conductor are electroconductively connected in series by first and second horizontal connecting conductors arranged in the stator layer on the second and first side, respectively.

公开(公告)号：US11489428B2

公开(公告)日：2022-11-01

申请号：US16894169

申请日：2020-06-05

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Lukas Bentfeld ,  Uwe Pruessmeier ,  Joerg Neufeld

IPC: H02K41/03 ,  H02K11/215 ,  H02K11/33 ,  H02K11/01

Abstract: A stator module for electromagnetically driving a rotor of a planar drive system comprises a connection module to provide drive energy. A power module has a current-generating unit to generate a drive current, which drives the rotor, from the drive energy. A stator unit has a coil conductor, to which the drive current can be applied, for generating a magnetic field which drives the rotor. A sensor module comprises a position-detecting unit to detect a position of the rotor over the sensor unit. The sensor module is arranged in a module housing. The stator unit and power module are arranged on a top side of the module housing and the connection module is arranged on a bottom side. The current-generating unit and the connection module are connected via a drive energy line. The drive energy line passes through the module housing in a manner electrically insulated from the sensor module.

公开(公告)号：US11437902B2

公开(公告)日：2022-09-06

申请号：US16896650

申请日：2020-06-09

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Lukas Bentfeld ,  Uwe Pruessmeier

IPC: H02K41/03

Abstract: A stator module for two-dimensionally driving a rotor having first and second magnet units comprises a stator assembly including first and second stator segments for interacting with drive magnets of the first and second magnet units. The individual stator segments may each be energized independently from the remaining stator segments. The stator assembly comprises 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 comprising the magnet units.

公开(公告)号：US20210091621A1

公开(公告)日：2021-03-25

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：US20200304009A1

公开(公告)日：2020-09-24

申请号：US16896636

申请日：2020-06-09

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Lukas Bentfeld ,  Uwe Pruessmeier

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

Abstract: A stator unit for driving a rotor of an electrical planar drive system comprises first and second stator sectors. The first stator sector comprises conductor strips extended in an elongate manner along a first direction, and arranged next to one another along a second direction perpendicular to the first direction. The second stator sector comprises conductor strips extended in an elongate manner along the first direction, and arranged next to one another along the second direction. The first stator sector is arranged adjacent the second stator sector in the first direction. A contact structure comprises a first and a second contact unit groups conductively connected to the conductor strips of the first and second stator sectors. The contact structure is arranged on inner edges of the first stator and second stator sectors, with the inner edges are arranged to bear against one another between the first and second stator sector.

公开(公告)号：US20230006517A1

公开(公告)日：2023-01-05

申请号：US17903429

申请日：2022-09-06

Applicant: Beckhoff Automation GmbH

Inventor： Lukas Bentfeld ,  Klaus Neumann ,  Keir Maguire ,  Dominik Sensen ,  Tim Kaulmann

IPC: H02K11/20 ,  H02K1/27 ,  H02K1/12 ,  H02P23/14 ,  H02P29/60

Abstract: A method for controlling a planar drive system includes determining values of magnetic stator fields for different energizing currents and spatial regions in a two-dimensional array of magnetic field sensors, generating at least one magnetic stator field by applying energizing currents to stator conductors to electrically control a rotor, determining measured values of a total magnetic field via the magnetic field sensors for a plurality of the spatial regions to determine a position of the rotor, compensating contributions of the magnetic stator fields to the measured values of the total magnetic field determined by the magnetic field sensors, generating measured values of the magnetic field determined by the respective magnetic field sensors for the respective space regions, and determining a position of the rotor based on the generated measured values of the magnetic fields. The planar drive system includes at least a controller, a stator module, and a rotor.

公开(公告)号：US11309763B2

公开(公告)日：2022-04-19

申请号：US17116532

申请日：2020-12-09

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Lukas Bentfeld ,  Uwe Prüssmeier

IPC: H02K41/03 ,  H02K3/47

Abstract: A stator assembly for driving a rotor of an electrical planar motor includes a first arrangement of longitudinal stator layers and a second arrangement of oblique stator layers. The longitudinal stator layers comprise first coil conductors and the oblique stator layers comprise second coil conductors. The second coil conductors interact with second drive magnets to drive the rotor in a first direction, and the first coil conductors interact with first drive magnets to drive the rotor in a second direction, different from the first direction. The longitudinal and oblique stator layers are arranged on top of one another in a third direction, perpendicular to the first and second directions, where the first arrangement of longitudinal stator layers and the second arrangement of oblique stator layers have a shared central plane, each being symmetrically arranged with regard to the shared central plane, in the third direction.