Patents Assigned to Innomotics GmbH
  • Patent number: 12379283
    Abstract: Disclosed is a method for identifying faults in a drive. A normalized spectrum is determined, which is dependent on a speed. Peak values in the spectrum are identified. A first peak value is identified at a first frequency and a second peak value is identified at a second frequency. A pattern is identified based on the first frequency and the second frequency.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: August 5, 2025
    Assignee: Innomotics GmbH
    Inventor: Rohan Mangalore Shet
  • Publication number: 20250246975
    Abstract: Various embodiments of the teachings herein include an electric motor comprising: a stator having a plurality of field conductor bars; an inverter having parallel power components for each of the field conductor bars for the actuation thereof, wherein the inverter comprises a controller to generate actuation signals for the power components; at least one plug-in connector arranged on each of the circuit boards to contact the end stages; and a connecting PCB plugged onto the plug-in connectors of at least two of the circuit boards of one of the circular or annular structures. End stages of the inverter are arranged on a plurality of circuit boards.
    Type: Application
    Filed: June 13, 2023
    Publication date: July 31, 2025
    Applicant: Innomotics GmbH
    Inventor: Frank Brütting
  • Patent number: 12374958
    Abstract: A cage rotor of an asynchronous machine includes a magnetically conductive body having substantially axially running slots with conductors connected to end faces of the magnetically conductive body in an electrically conductive manner by short circuit rings. The short circuit rings have an outer side, an inner side, a front side, and a rear side. A supporting element made of a high-strength material is located at least radially within the short circuit rings, i.e. on the inner face, with the supporting element being connected to the short-circuit ring, at least in one section, with a material fit.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: July 29, 2025
    Assignee: Innomotics GmbH
    Inventors: Christian Bauer, Konrad Brandl, Markus Klöpzig, Klaus Schleicher
  • Patent number: 12360173
    Abstract: In a method for monitoring a converter, a plurality of warning messages is used to conclude whether there is a failure in the converter. For this purpose, warning messages are grouped according to the parts of the converter affected.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: July 15, 2025
    Assignee: Innomotics GmbH
    Inventors: Cornel-Marian Rosca, Stefan Kögl, Fabian Hecht
  • Patent number: 12356597
    Abstract: An electrical conductor assembly includes an electrical conductor, an electrically insulating jacket disposed around a conductor section of the electrical conductor, an electrically conductive sleeve disposed around a first insulating jacket section of the insulating jacket, and an electrically conductive yarn for realizing an electric field control. The electrically conductive yarn is wound around a second insulating jacket section of the electrically insulating jacket in adjacent relation to the first insulating jacket section.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: July 8, 2025
    Assignee: Innomotics GmbH
    Inventors: Marco Festa, Moritz Greinacher
  • Patent number: 12348109
    Abstract: An electric machine includes a rotor surrounded by a stator. An external jacket surrounds the stator and extends between front and rear end parts, thereby delimiting an inner region which accommodates the rotor, and an outer region radially surrounding the inner region. The inner and outer regions communicate with one another via recesses to enable air to flow out of the inner region and into the outer region and from there to flow back into the inner region. Front and rear closing elements are attached to the front and rear end parts on their side facing away from the external jacket, thereby enclosing a front cavity and a rear cavity. Axial tubes are fastened in the front and rear end parts such that the axial tubes extend from the front end part across the outer region to the rear end part and open in the front and rear cavities.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: July 1, 2025
    Assignee: Innomotics GmbH
    Inventors: Thomas Mutzl, Thomas Osterholzer, Martin Stoiber
  • Publication number: 20250202406
    Abstract: A variable frequency drive system includes a power converter (160a) with a plurality of power cells (16a1-16c3) supplying power to one or more output phases, each power cell having multiple switching devices, a plurality of sensors monitoring values of the power converter, and a control system (18) in communication with the power converter and controlling operation of the plurality of power cells, wherein the control system is configured via computer executable instructions to access and utilize a multi-dimensional response surface to obtain an internal coolant flow rate.
    Type: Application
    Filed: July 27, 2022
    Publication date: June 19, 2025
    Applicant: Innomotics GmbH
    Inventor: Bogdan Cristian Ionescu
  • Patent number: 12323532
    Abstract: An ecosystem of devices that autonomously interact with one another by a blockchain is provided, to create a security-protected data processing of sensor data or measurement data for an object by a blockchain infrastructure. Fields of application include supply-chain scenarios or industrial control applications of blockchains.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: June 3, 2025
    Assignee: Innomotics GmbH
    Inventor: Thomas Jetzfellner
  • Patent number: 12323009
    Abstract: A drive shaft of a dynamoelectric machine includes at least two different heat conduction paths that are thermally separate from one another. Each of the at least two heat conduction paths has two physically separate ends and is embodied such that heat is able to couple into the drive shaft at a first one of the two ends and to couple out of the drive shaft at a second one of the two ends.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: June 3, 2025
    Assignee: Innomotics GmbH
    Inventor: Markus Hoesle
  • Publication number: 20250175064
    Abstract: In a method for impregnating a winding system arranged in substantially axial slots of an electromagnetically conductive element of a stator of a dynamoelectric machine, the winding system is impregnated by impregnation resin using a dipping or trickling process. Vibrations are induced into the stator and/or the impregnation resin over a specifiable period of time with an adjustable amplitude and/or frequency, and the stator remains at rest in a dipping tank for a specifiable time after the vibrations have been induced.
    Type: Application
    Filed: February 20, 2023
    Publication date: May 29, 2025
    Applicant: Innomotics GmbH
    Inventors: TOBIAS KATZENBERGER, BASTIAN PLOCHMANN
  • Patent number: 12316242
    Abstract: A submodule for a modular multilevel converter has ten semiconductor switches that can be switched off, four capacitors, six network nodes, and two terminals. The components are mounted such that different voltages are generated between the terminals of the submodule by controlling the semiconductor switches. This arrangement of components substantially improves the behavior of the converter and of the submodule in the event of a fault.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: May 27, 2025
    Assignee: Innomotics GmbH
    Inventors: Viktor Hofmann, Mark-Matthias Bakran, Sebastian Semmler
  • Patent number: 12316175
    Abstract: Disclosed is a method for pulling a stator winding system of an electric machine into a stator lamination stack of the electric machine and to a winding tool, with the stator lamination stack having stator grooves which run parallel to a rotation axis of the electric machine and are distributed in a circle around the rotation axis and open thereto and which have on an end facing the rotation axis a gap region which is narrowed relative to the rest of the stator groove. Windings are arranged in the stator grooves, and winding overhangs, as seen in the direction of the rotation axis, protrude from the stator lamination stack at the two axial ends thereof, with the windings formed in the stator grooves as laid windings. The stator lamination stack has no guide structures on the two axial ends for guiding the individual turns of the windings.
    Type: Grant
    Filed: April 24, 2024
    Date of Patent: May 27, 2025
    Assignee: Innomotics GmbH
    Inventors: Klaus Büttner, Tobias Katzenberger, Klaus Kirchner, Bastian Plochmann, Matthias Warmuth
  • Publication number: 20250158556
    Abstract: A variable frequency drive system includes a power converter with a plurality of power cells supplying power to one or more output phases, each power cell having multiple switching devices, a plurality of sensors monitoring values of the power converter, and a control system in communication with the power converter and controlling operation of the plurality of power cells, wherein the control system is configured via computer executable instructions to access and utilize a multi-dimensional response surface to obtain an internal coolant flow rate.
    Type: Application
    Filed: November 9, 2023
    Publication date: May 15, 2025
    Applicant: Innomotics GmbH
    Inventor: Bogdan Cristian Ionescu
  • Patent number: 12283807
    Abstract: An electronic protection switch includes first and second network terminals and two semiconductor switches of same kind. Each semiconductor switch is formed by an IGBT semiconductor switch and includes a switching element and a diode which is arranged antiparallel to the switching element. A first of the two semiconductor switches is arranged without a semiconductor series connection between a positive potential terminal of the first network terminal and a positive potential terminal of the second network terminal. A second of the two semiconductor switches is arranged without a semiconductor series connection between a negative potential terminal of the first network terminal and a negative potential terminal of the second network terminal. The switching element of each semiconductor switch is arranged so as to be able to conduct and switch off a current from the first network terminal to the second network terminal.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: April 22, 2025
    Assignee: Innomotics GmbH
    Inventor: Benno Weis
  • Patent number: 12278527
    Abstract: A conductor bar of a cage rotor of an asynchronous machine has a longitudinal extension and includes first and second sections in the longitudinal extension. The first section has a hardness which is lower than a hardness of the second section and is realized through soft annealing, brief inductive heating or heating by a flame so as to enable a compression of the first section of the conductor bar by way of axial pressure after axially joining the conductor bar in a slot of a magnetically conductive body of the cage rotor, with the first section abutting an inner wall of the slot of magnetically conductive body of the cage rotor.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: April 15, 2025
    Assignee: Innomotics GmbH
    Inventors: Klaus Büttner, Klaus Kirchner, Matthias Warmuth
  • Publication number: 20250119049
    Abstract: A brake adjuster for a modular multilevel converter includes a plurality of submodules, a first switching group including at least one of the plurality of submodules, a second switching group including at least another one of the plurality of submodules, and a resistor. The first switching group is arranged between the resistor and a first connection point and the second switching group is arranged between the resistor and a second connection point such that the resistor and the first and second switching groups form an electrical series circuit between the first connection point and the second connection point. Any further one of the plurality of submodules is arranged in the first switching group or in the second switching group.
    Type: Application
    Filed: November 2, 2022
    Publication date: April 10, 2025
    Applicant: Innomotics GmbH
    Inventors: LENNART BARUSCHKA, DENNIS KARWATZKI
  • Publication number: 20250062660
    Abstract: An attachment cooler of a dynamo-electric machine is embodied as a heat exchanger and includes a primary circuit for flow of a medium, and a secondary circuit separate from the primary circuit for flow of a medium, with the secondary circuit including a central channel and a waste air channel. A casing includes receiving openings and is designed to accommodate the central channel and the waste channel of the secondary circuit, with the waste channel leading out to a side of the casing. Exchangeable modules embodied as plate heat exchangers are insertable in the receiving openings of the casing. Each of the modules is designed for individual removal, without a flow bypass being created by unoccupied ones of the receiving openings.
    Type: Application
    Filed: November 8, 2022
    Publication date: February 20, 2025
    Applicant: Innomotics GmbH
    Inventors: ERIK KROMPASKY, ONDREJ LUÑÁCEK, MARTIN RÚT
  • Patent number: 12224626
    Abstract: A rotor of a dynamo-electric rotary machine includes a rotor core arranged concentrically to a rotor axis and including slots filled with electrically conductive material. A front ring is arranged at a front axial end of the slots and includes electrically conductive material, and a rear ring is arranged at a rear axial end of the slots and includes electrically conductive material. A rotor-core-distal surface of the front ring and/or rear ring has a bevel in axial direction from an outer circumference to an inner circumference, with the bevel defined by a bevel angle having a value of 3° to 30°. A support element is at least partially connected to the front and/or rear ring with a positive fit and pressed thereon axially, with the support element being supported on a shaft and having a radial end which terminates at a radial end of the front and/or rear ring.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: February 11, 2025
    Assignee: Innomotics GmbH
    Inventors: Mario Büttner, Klaus Büttner, Klaus Kirchner, Matthias Warmuth
  • Patent number: 12210049
    Abstract: A method for evaluating partial discharge signals. Partial discharge signals are captured, at only one point or at a plurality of points, near insulation of the electrical outer conductors of a multi-phase alternating current. The multi-phase alternating current, flowing in respective outer conductors, has fixed phase shifts relative to each other. Partial discharge signals are superposed on each other. At least one characteristic variable of the partial discharge signals is defined. Each partial discharge signal is assigned a phase position. A characteristic variable value of each characteristic variable is determined. Each partial discharge signal is assigned a number tuple from each characteristic variable value of the partial discharge signal and from the phase position. Clusters of the partial discharge signals in a multidimensional space with points formed by the number tuples are determined. A partial discharge activity is determined for each outer conductor from the determined clusters.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: January 28, 2025
    Assignee: Innomotics GmbH
    Inventors: Martin Meyer, Dirk Scheibner, Jürgen Zettner
  • Patent number: D1066232
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: March 11, 2025
    Assignee: Innomotics GmbH
    Inventors: Jan Andersson, Stephan Hühne, Ladislav Spacek