公开(公告)号：US12289022B2

公开(公告)日：2025-04-29

申请号：US17988069

申请日：2022-11-16

Applicant: Beckhoff Automation GmbH

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

IPC: H02K19/14 ,  H02K41/03 ,  H02K47/04 ,  H02P25/064 ,  H02P27/08

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 in order 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 rotor to the stator, and the rotor is configured to temporarily load the at least one rotor coil to temporarily cause increased current consumption of the energized stator conductors of the stator.

公开(公告)号：US12176835B2

公开(公告)日：2024-12-24

申请号：US18060535

申请日：2022-11-30

Applicant: Beckhoff Automation GmbH

Inventor： Lukas Bentfeld

IPC: H02K41/00 ,  H02K41/03 ,  H02P1/00 ,  H02P3/00 ,  H02P5/00 ,  H02P25/064

Abstract: A method for operating a planar drive system is specified. The planar drive system comprises a stator, a plurality of rotors and a main controller. The stator comprises a plurality of energizable stator conductors. Energizing of stator conductors of the stator can be controlled via the main controller. Each 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 devices of the rotors in order to drive the rotors. At least one individual rotor identifier is assigned to each rotor. An identification of the rotors is carried out by providing position information of the rotors and rotor identifiers of the rotors and linking the provided position information of the rotors to the provided rotor identifiers of the rotors via the main controller.

公开(公告)号：US20230055324A1

公开(公告)日：2023-02-23

申请号：US17961253

申请日：2022-10-06

Applicant: BECKHOFF AUTOMATION GMBH

Inventor： Lukas Bentfeld ,  Johannes Beckhoff

IPC: H02K1/14 ,  H02K11/215 ,  H02K41/03

Abstract: A method for controlling a planar drive system includes identifying a preferred stator module direction with a preferred magnetic field or sensor direction, and identifying a preferred mover direction with a respective other of the preferred magnetic field or sensor direction; setting a magnetic orientation field with a magnet device; recording at least a measurement value of the magnetic orientation field with a magnetic field sensor device; determining an alignment of the preferred mover direction relative to the preferred stator module direction based on the measurement value of the component of the magnetic orientation field parallel to the preferred sensor direction; and determining a first orientation of the mover on the stator module, on the basis of the alignment of the preferred mover direction relative to the preferred stator module direction. The application also relates to a planar drive system.

公开(公告)号：US20230006530A1

公开(公告)日：2023-01-05

申请号：US17900339

申请日：2022-08-31

Applicant: Beckhoff Automation GmbH

Inventor： Klaus Neumann ,  Lukas Bentfeld ,  Keir Maguire ,  Tim Kaulmann ,  Benjamin Jurke

IPC: H02K41/03 ,  H02K11/215 ,  H02P23/00

Abstract: A method for controlling a planar drive system includes generating a position allocating function, in an allocation generating step; measuring a plurality of measuring values of the magnetic rotor field by magnetic field sensors for a position of the rotor relative to the stator module, in a magnetic rotor field determining step; applying the position determination function to the plurality of measuring values of the magnetic rotor field of the plurality of magnetic field sensors, in a measuring value analysis step; and determining the position of the rotor relative to the stator module on the basis of the measurements of the magnetic rotor field measured by the plurality of magnetic field sensors and based on the allocations of the position allocating function, in a position determining step. The application further relates to such a planar drive system.

公开(公告)号：US20220393555A1

公开(公告)日：2022-12-08

申请号：US17886750

申请日：2022-08-12

Applicant: Beckhoff Automation GmbH

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

IPC: H02K11/27 ,  H02K1/22 ,  H02K1/272 ,  H02K21/04

Abstract: A planar drive system comprises a stator and a rotor. The stator comprises a plurality of stator conductors. The rotor comprises a magnet device comprising at least one rotor magnet. The stator is configured to energize the stator conductors. A magnetic interaction can be produced between energized stator conductors of the stator and the magnet device of the rotor in order to drive the rotor. The stator is configured to carry out the energizing of the stator conductors by a current control based on a pulse-width modulation. Due to the current control, a ripple current in energized stator conductors of the stator and thereby an alternating magnetic field can be generated. The rotor comprises at least one rotor coil in which an alternating voltage can be induced due to the alternating magnetic field.

公开(公告)号：US20200304008A1

公开(公告)日：2020-09-24

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 ,  H02K11/22 ,  H02K11/215 ,  H02K11/33

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：US20250080026A1

公开(公告)日：2025-03-06

申请号：US18941599

申请日：2024-11-08

Applicant: Beckhoff Automation GmbH

Inventor： Lukas Bentfeld ,  Johannes Beckhoff ,  Felix Schulte ,  Uwe Prüssmeier

IPC: H02P25/064 ,  H02K41/03 ,  H02P6/00 ,  H02P6/16

Abstract: A method for controlling a planar drive system includes transmitting a communication message with the aid of a main controller to a sub-controller via the communication system, where the communication message comprises a start command for starting the automation process to be carried out by the rotor and is configured to drive the sub-controller to control the automation process, and receiving a response message transmitted by the sub-controller to the main controller via the communication system, the response message comprising a status indication of a status of the automation process controlled by the sub-controller. The application also provides a rotor, a stator assembly and a planar drive system.

公开(公告)号：US20240391712A1

公开(公告)日：2024-11-28

申请号：US18792681

申请日：2024-08-02

Applicant: Beckhoff Automation GmbH

Inventor： Lukas Bentfeld ,  Johannes Beckhoff ,  Felix Schulte ,  Uwe Prüssmeier ,  Keir Maguire

IPC: B65G54/02 ,  B65G43/00

Abstract: The invention relates to a planar drive system comprising at least a stator assembly with a plurality of coil groups for generating a stator magnetic field, a stator surface above the stator assembly, and a rotor. The rotor comprises a plurality of magnet assemblies for generating a rotor magnetic field. In a first operating state, the rotor can be moved above the stator surface in parallel to the stator surface with the aid of an interaction of the stator magnetic field with the rotor magnetic field. In a second operating state, the rotor is at least restricted in its ability to move in parallel to and perpendicularly with regard to the stator surface by a safety system.

公开(公告)号：US20230100474A1

公开(公告)日：2023-03-30

申请号：US18060535

申请日：2022-11-30

Applicant: Beckhoff Automation GmbH

Inventor： Lukas Bentfeld

IPC: H02P25/064 ,  H02K41/03

Abstract: A method for operating a planar drive system is specified. The planar drive system comprises a stator, a plurality of rotors and a main controller. The stator comprises a plurality of energizable stator conductors. Energizing of stator conductors of the stator can be controlled via the main controller. Each 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 devices of the rotors in order to drive the rotors. At least one individual rotor identifier is assigned to each rotor. An identification of the rotors is carried out by providing position information of the rotors and rotor identifiers of the rotors and linking the provided position information of the rotors to the provided rotor identifiers of the rotors via the main controller.

公开(公告)号：US11552524B2

公开(公告)日：2023-01-10

申请号：US16892681

申请日：2020-06-04

Applicant: Beckhoff Automation GmbH

Inventor： Rolf Brinkmann ,  Lukas Bentfeld ,  Uwe Pruessmeier

IPC: H02K41/00 ,  H02K11/33 ,  H02K5/22 ,  H02K41/03 ,  H02K11/30

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.