Patents by Inventor Fabian OEHLER

Fabian OEHLER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240072593
    Abstract: A stator for an electric machine, in particular for use in a hybrid or fully electric drive train of a motor vehicle. The stator has a cylindrical opening which extends axially through the stator and on which a plurality of stator slots are present, the stator slots being arranged in a peripherally distributed manner and extending radially outward from an inner cylinder jacket surface of the cylindrical opening and being formed over the entire axial length of the stator. The, stator slots each have a slot base on the radially outer end thereof and an air gap to a rotor, which can be received in the cylindrical opening, on the radially inner end thereof. The stator windings have winding wires arranged in the stator slots and the stator windings are designed as a wave winding having a first winding mat and a second winding mat.
    Type: Application
    Filed: February 8, 2022
    Publication date: February 29, 2024
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Oliver ERNST, Fabian OEHLER
  • Publication number: 20240055913
    Abstract: An electric machine for driving a motor vehicle, having a stator and a rotor, rotatably mounted relative to the stator. The stator or the rotor is equipped with a winding receptacle region having a plurality of radially extending longitudinal slots distributed in a circumferential direction. Each longitudinal slot has with an opening toward one radial side, the width of which opening is delimited by two ends of two tabs directed toward each other in the circumferential direction, wherein each longitudinal slot has, between a chamber region receiving a plurality of conductors and the two tabs, at least one shoulder reducing a width of the chamber region, the conductors being supported in a radial direction on the at least one shoulder.
    Type: Application
    Filed: August 25, 2020
    Publication date: February 15, 2024
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Michael Marsetz, Fabian Oehler
  • Publication number: 20220337140
    Abstract: A strip-shaped winding unit for a stator winding has a first winding conductor, which is led in a plurality of layers of the winding unit and includes: a. a plurality of straight groove portions which run in a transverse direction of the winding unit and are arranged mutually parallel; b. a first curved end portion, which connects a first groove portion in the first layer to a second groove portion in a second layer adjacent to the first layer and is arranged on a first longitudinal side of the winding unit; c. a second curved end portion, which connects the second groove portion in the second layer to a third groove portion in the first layer and is arranged on a second longitudinal side of the winding unit opposite the first longitudinal side; d. a third curved end portion, which connects the third groove portion in the first layer with a fourth groove portion in the second layer and is arranged on the first longitudinal side of the winding unit; and e.
    Type: Application
    Filed: August 25, 2020
    Publication date: October 20, 2022
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Valentin Lehner, Fabian Oehler
  • Publication number: 20220181953
    Abstract: A slot wedge having a stem region and an engagement region perpendicular thereto radially closes a slot in an electrical machine. The engagement region is in engagement with deformed regions of a slot insulation material. A closure cap can fasten the slot wedge in the slot. Protrusions which limit a creepage distance can be provided on the stem region or on a possible closure cap.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 9, 2022
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Fabian Oehler
  • Patent number: 11101086
    Abstract: An electrical switch for interrupting a current path. The switch includes a contact point formed from a first and a second contact piece mounted such that it can move about a rotation axis. The contact point is closed when the two contact pieces are in contact and is electrically opened when the two contact pieces are not in contact. The electrical switch includes an actuator unit and an electrically non-conductive separating element which can be moved in a translatory manner by means of the actuator unit and is designed to isolate the two contact pieces and then to keep the two contact pieces apart. The actuator unit includes a movement element mechanically coupled to the separating element, a drive device designed to move the movement element in order to close the contact point, a device for generating and/or storing kinetic energy and an electromagnetic actuator.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: August 24, 2021
    Assignee: Lisa Dräxlmaier GmbH
    Inventors: Fabian Oehler, Michael Wortberg
  • Publication number: 20200227220
    Abstract: An electrical switch for interrupting a current path, in particular of a voltage supply in a motor vehicle is disclosed. The switch includes a contact point which is formed from a first contact piece and a second contact piece which is mounted such that it can move about a rotation axis. Here, the contact point is electrically closed when the two contact pieces are in contact and is electrically opened when the two contact pieces are not in contact. Furthermore, the electrical switch includes an actuator unit and an electrically non-conductive separating element which can be moved in a translatory manner by means of the actuator unit and is designed to isolate the two contact pieces from one another and then to keep the two contact pieces apart in order to open and to keep open the contact point and to act as an insulator between the contact faces.
    Type: Application
    Filed: September 21, 2018
    Publication date: July 16, 2020
    Inventors: Fabian OEHLER, Michael WORTBERG