Patents Assigned to Bühler Motor GmbH
  • Publication number: 20210305923
    Abstract: A protection circuit for an electric motor with a single phase winding, consisting of two coil sections with central tapping, wherein the two coil ends of the coil sections are each connected to ground via a switching element. The task of the invention is for an electric motor of this type to ensure a thermal relief for the switching elements, improved and smoother running, reduced warming of the printed circuit board, improved EMC characteristics, a more robust design of the overall switching, a focused conduction of the losses and an extra protection against any surge impulses from a mains network.
    Type: Application
    Filed: June 10, 2021
    Publication date: September 30, 2021
    Applicant: Bühler Motor GmbH
    Inventor: Jens Weiss
  • Patent number: 11114906
    Abstract: A stator in an electric motor and to a method for producing the stator in which a plurality of individual coils are wound on laminated stator poles and are provided with an insulation, wherein the insulation bears connection contacts for bringing the individual coils into contact with a printed circuit board, wherein the connection contacts are press-fitted into the printed circuit board. The present stator provides for a compact size and for simple and economical joining processes. In a preferred embodiment, the electric motor is a dosing pump motor for drug delivery systems.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: September 7, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Jürgen Brettschneider, Richard Guttenberger
  • Patent number: 11108314
    Abstract: A magnet holder for attaching a sensor magnet to a motor shaft of an electric motor, including a receiving recess for the sensor magnet and an attachment region for attachment to the motor shaft, wherein the receiving recess is radially delimited by a wall that, over the circumference thereof, includes a plurality of weak spots which have a reduced wall thickness and are designed so that free spaces remain between the weak spots and the sensor magnet arranged in the receiving recess. The invention further relates to a sensor magnet assembly, to an electric motor comprising a sensor magnet assembly, and to a method for producing a sensor magnet assembly. It is the object of the present invention to very reliably and durably attach a sensor magnet to the end of a motor shaft in a very economical and simple manner, wherein adhesive methods are to be dispensed with.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: August 31, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Nils Gehring, Paul-Peter Golditz, Peter Schneider, Bertram Baudler, Gerhard Mehl, Stephan Kach
  • Patent number: 11081915
    Abstract: A rotor device for an electric motor and/or generator with a rotor body and a plurality of magnets, wherein the rotor body comprises a rotor shaft seat and a plurality of magnet receptacles arranged coaxially with the rotor shaft seat. The magnets are rigidly positioned and mounted in the magnet receptacles by means of a plastic molding compound injected into the magnet receptacles, which plastic molding compound forms at least one cover element that covers the openings of the magnet receptacles at least partially. The cover element comprises at least one magnet wheel centering means and/or at least one magnet wheel alignment means. The invention furthermore relates to a rotor and a motor with such a rotor device as well as to a production method.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: August 3, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventor: Georg Bernreuther
  • Patent number: 11081916
    Abstract: A rotor device for an electric motor and/or generator with a rotor body and a plurality of magnets, wherein the rotor body comprises a rotor shaft seat and a plurality of magnet receptacles arranged coaxially with the rotor shaft seat. The magnets are rigidly positioned and mounted in the magnet receptacles by means of a plastic molding compound injected into the magnet receptacles, which plastic molding compound forms at least one cover element that covers the openings of the magnet receptacles at least partially. The cover element comprises at least one magnet wheel centering means and/or at least one magnet wheel alignment means. The invention furthermore relates to a rotor and a motor with such a rotor device as well as to a production method.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: August 3, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventor: Georg Bernreuther
  • Patent number: 11054015
    Abstract: A gearbox for a planetary gear having a hollow-cylindrical housing body having a first internal gear, and a bearing flange engaging at least in sections coaxially in the housing body, so that an overlap area is formed, wherein the housing body and the bearing flange are firmly bonded to each other in the overlap area by laser irradiation welding. The bearing flange has a second internal gear in the overlap area. The gearbox relates to a planetary gear and a motor/transmission combination having such a gearbox and a production method thereof.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: July 6, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Michael Antes, Bernd Reinecker, Olaf Richter, Klaus Weiske, Reiner Hettych
  • Patent number: 11028918
    Abstract: A series for an epicyclic gear train and a planet gear carrier consisting of a carrier base with a plurality of axial receptacles for bearing pins of planet gears and a depression for receiving an axial section of a pinion. The object of the present invention is to specify a planet gear carrier, which shifts the boundaries of the reduction range such that a greater variation of the reduction gear ratios is possible, wherein an economical process is used and reliable production is ensured. Also described is a series of planetary gear trains having the same properties. In the case of series, the number of components is in particular to be minimized by increasingly using common parts that can be combined with other common parts.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: June 8, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Matthias Ahrens, Fabian Zimber, Katherine Bee
  • Patent number: 11025109
    Abstract: A permanent magnet rotor of an electric motor, includes a laminated core having magnet pockets, the laminated core being composed of two partial laminated cores. A plurality of permanent magnets are held in a force-fitting manner in magnet pockets of the laminated core, the magnets extending over both partial laminated cores. Sheet metal tongues, which maintain the force fit of the permanent magnets, are deflected in the first partial laminated core in a first axial direction and in the second partial laminated core in a second axial direction opposite to the first direction, wherein the partial laminated cores consist of stamped metal sheets and the permanent magnets are pressed into the magnet pockets in the stamping direction.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: June 1, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Heinz Günther, Martin Gundermann, Mladen Zec, Jochen Bauer, Andreas Wall, Klaus Weiske, Armin Suttner-Reimann
  • Patent number: 10971962
    Abstract: A stator of an electronically-commutated DC motor, with a stator core, an insulating cap, a stator winding, and a winding interconnection, wherein the winding interconnection consists of several sheet-metal elements and several insulating elements which are arranged between the sheet-metal elements. The aim of the invention is to provide a simple design for a generic stator consisting of easy-to-manufacture and easily-shaped components, wherein production tolerances can be compensated for in a simple manner. A further aim consists of being able to use reliable and proven production processes which are also as easy as possible to monitor.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: April 6, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Heinz Günther, Reiner Hettych, Martin Gundermann
  • Patent number: 10961775
    Abstract: A venetian blind drive, with a geared motor, consisting of an electric motor and a reduction gear unit, a drive housing, a motor mount for the geared motor, a damping device arranged between the motor mount and the geared motor, and a damping mechanism for the damping means on the geared motor. A generic drive that can be produced and mounted in an easy and economical manner, has a low number of parts, and has reliable structure-borne sound insulation.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: March 30, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventor: Bernd Reinecker
  • Patent number: 10965189
    Abstract: An actuator unit includes a support plate having a first side and a second side; an electric motor with terminal lugs and a motor shaft; a motor mounting pocket on the first side, the motor mounting pocket accommodating the electric motor; mounting projections on the first side, the mounting projections including a plurality of clamping pockets; a PC-board insertion slot on the first side; a motor shaft passage from the first side to the second side; the motor shaft of the electric motor projecting from the first side through the shaft passage to the second side and carrying a pinion; a multistage reduction gear arranged on the second side and meshing with the pinion; and a plurality of conductor stampings fixed in the clamping pockets and connected with the terminal lugs of the electric motor.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: March 30, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Christopher Smith, Cory Taylor, Christopher Wooten
  • Patent number: 10926498
    Abstract: A method for producing a ring gear for a planetary gear train, wherein a continuous profile is produced by an extrusion process and the continuous profile is subsequently cut to a predetermined cutting length in order to form a ring gear body.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: February 23, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Olaf Richter, Daniel Kirchgessner
  • Patent number: 10931161
    Abstract: A centrifugal pump motor comprising a permanent magnet rotor, a wound stator that is separated from the permanent magnet rotor by means of a containment shell, a circuit board having a large electronic component electrically connected to it, and a motor housing with a plug connection. The centrifugal pump motor provides a robust design for a generic centrifugal pump motor, so as to prevent damage during installation and operation, as well as additionally ensuring a space-saving and compact arrangement of the electronic components, in order to enable optimal heat dissipation of the electronic components. Furthermore, a simple way of manufacturing is provided.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: February 23, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Jürgen Ehrsam, Klaus Weiske, Harald Rausch, Florian Stückl, Jens Weiss
  • Publication number: 20210050763
    Abstract: An actuator unit includes a support plate having a first side and a second side; an electric motor with terminal lugs and a motor shaft; a motor mounting pocket on the first side, the motor mounting pocket accommodating the electric motor; mounting projections on the first side, the mounting projections including a plurality of clamping pockets; a PC-board insertion slot on the first side; a motor shaft passage from the first side to the second side; the motor shaft of the electric motor projecting from the first side through the shaft passage to the second side and carrying a pinion; a multistage reduction gear arranged on the second side and meshing with the pinion; and a plurality of conductor stampings fixed in the clamping pockets and connected with the terminal lugs of the electric motor.
    Type: Application
    Filed: August 13, 2019
    Publication date: February 18, 2021
    Applicant: BÜHLER MOTOR GMBH
    Inventors: CHRISTOPHER SMITH, CORY TAYLOR, CHRISTOPHER WOOTEN
  • Patent number: 10920771
    Abstract: A pump drive for conveying a reducing agent for motor vehicle exhaust gas systems, with an electronically commutated direct current motor, a positive displacement pump, and a freezing compensation structure. Also, a modular motor and pump family for forming different pump drives with several such electric motors and pumps. It is the aim of the invention to ensure, in the simplest and most robust manner possible, the integration of a hydraulic unit (gear pump) into an electrical unit (electric motor), a sealing of a wet region from a dry region, an integration of a freezing compensation into the wet region, and a mechanical attachment on the customer side. A modular construction of the electric motor and of the positive displacement pump, which, without a large modification cost, via simple combination of assemblies or modules, can be used for different requirements, is important for this.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: February 16, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventor: Karl-Heinz Böhm
  • Patent number: 10907644
    Abstract: A pump impeller consisting of at least three different material regions, wherein an impeller wheel with a hollow shaft defines a first material region, a bearing component defines a second material region, and a permanent magnet defines a third material region. The invention furthermore relates to a method for producing the pump impeller, and to a centrifugal pump with the pump impeller. The object of the invention is to provide a robust construction, optimal venting, secure attachment of the bearing component, economic production, and a possibility of axial length tolerance compensation given a pump impeller with plastic-bonded permanent magnets. Furthermore, an optimally accurate unbalance-reduced connection between the bearing component and the magnet material should be producible.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: February 2, 2021
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Sebastian Krippner, Andrea Bindig, Harald Rausch, Jürgen Ehrsam, Klaus Weiske
  • Publication number: 20210013758
    Abstract: A stator of an electric motor having a stator core with a plurality of salient stator poles, an insulating cap, a stator winding consisting of a winding wire, and an interconnection unit with a plurality of winding-wire receptacles having an inside, wherein the winding wire is surrounded by a material constituting the winding-wire receptacle and connected and welded thereto on the inside. The stator is of an electric motor which is of a very high quality and precision so that high-current applications are possible. Without any major adjustments, the stator is combinable with different winding connections and is flexibly adaptable to the rest of the motor and possibly to the electronics design. The manufacturing method is capable of being flexibly adapted to different wire diameters.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 14, 2021
    Applicant: Bühler Motor GmbH
    Inventors: Jürgen Brettschneider, Georg Bonk, Andreas Appel
  • Patent number: 10848037
    Abstract: A permanent magnet rotor (1) with a magnetically conductive magnetic core (2), which has a plurality of magnet retainers (3, 4) for radially arranged and essentially tangentially magnetized permanent magnet parts (9), and a method for the production thereof. With a common permanent magnet rotor, the object of the present invention is to ensure a simple installation for a low number of components to be installed, very good magnetizability, high strength of the mechanical connection of the permanent magnet parts in the magnet retainers, and a compact size.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: November 24, 2020
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Mladen Zec, Armin Suttner-Reimann, Heinz Günther
  • Patent number: 10844949
    Abstract: A planetary gear carrier for an epicyclic gear train with at least two bearing journals and at least two bearing holes, wherein the bearing journals are in each case combinable with a first planetary gear to form a first gear reduction ratio, and the bearing holes are in each case combinable with a second planetary gear to form a second gear reduction ratio.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: November 24, 2020
    Assignee: BÜHLER MOTOR GMBH
    Inventors: Daniel Kirchgessner, Martin Gundermann, Gerhard Hofmann
  • Patent number: 10830242
    Abstract: A centrifugal pump for delivering coolant in vehicles and providing a centering of a pump impeller and a dampening of motor vibrations. The centrifugal pump having a pump housing consisting of a pump head, which forms a single part with a suction nozzle, a discharge nozzle, a spoke, and a bearing support, in which a counter bearing is mounted, in which a first region of a shaft is supported, around which a pump impeller is rotatably mounted via a slide bearing secured in the pump impeller, the spoke retaining the bearing support in a central position within the pump head and having a containment shell, which separates a wet chamber from a dry chamber and in which a second region of the shaft is supported. The invention seeks to solve the problem of providing in a generic centrifugal pump.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: November 10, 2020
    Assignee: BÜHLER MOTOR GMBH
    Inventor: Jürgen Ehrsam