Patents by Inventor Christian Finger

Christian Finger 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).

  • Patent number: 12388306
    Abstract: A rotor for a rotary electric machine, capable of rotating around an axis of rotation, the rotor has first and second axial ends and includes a rotor body having a plurality of teeth circumferentially distributed around the axis and projecting radially, each tooth being in contact with two end plates. Also included is a rotor winding having a plurality of coils, each coil being wound on one of said teeth of the rotor body, each coil having two coil ends, two covers, a first cover located on the first axial end of the rotor and a second cover located on the second axial end of the rotor. The rotor has at least one non-conductive radial barrier that maintains a predetermined distance between the first coil end and the first cover on the one hand and between the second coil end and the second cover on the other hand.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: August 12, 2025
    Assignee: Valeo eAutomotive Germany GmbH
    Inventors: Christian Finger-Albert, Carsten Siepker
  • Patent number: 12244192
    Abstract: A stator for an electric machine is disclosed. The stator has a plurality of pins arranged in slots in the stator on concentric circles at different distances from a center point, each concentric circle forming a layer. Each of six pins in different layers are connected to one another in series and form a winding. A first pin of the winding in a first slot in the 6n-4 layer, n being a natural number, a second pin of the winding in a second slot in the 6n-5 layer, a third pin of the winding in the first slot in the 6n-2 layer, a fourth pin of the winding in the second slot in the 6n-3 layer, a fifth pin in the first slot in the 6n layer, and a sixth pin of the winding in the second slot in the 6n-1 layer.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: March 4, 2025
    Assignee: Valeo Siemens eAutomotive Germany GmbH
    Inventors: Boris Dotz, Christian Finger-Albert
  • Patent number: 12212199
    Abstract: A stator for an electric machine having a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots in the stator, and each concentric circle forms a layer, where four pins in different layers are connected to one another in series and form a winding. A first pin of the winding is located in a first slot in the 4n-3 layer, wherein n is a natural number, a second pin of the winding is located in a second slot in the 4n-2 layer, wherein the second slot is at a first radial distance from the first slot in a first circumferential direction of the stator, a third pin of the winding is located in the first slot in the 4n layer, and a fourth pin of the winding is located in the second slot in the 4n-3 layer.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: January 28, 2025
    Assignee: Valeo Siemens eAutomotive Germany GmbH
    Inventors: Stephane De-Clercq, Wojciech Mandok, Christian Finger-Albert, Boris Dotz
  • Patent number: 12191729
    Abstract: A stator (1) for an electric machine (101), wherein the stator (1) has N?3 phases (U, V, W), P?2 pole pairs, and q?1 holes, the stator (1) comprises a stator core (3) having at least 2NPq slots (4) and a number of 2NPqL shaped conductors (5) arranged in an even number of L?4 layers (6a-h) radially layered in the slots (4), the shaped conductors (5) form 2q paths (7a-d) per phase and are arranged in 2P winding zones (8), which each extend radially over L layers (6a-h) and in the circumferential direction over at least q directly adjacent slots (4), the shaped conductors (5) of each path are connected in a series circuit, which is provided by connectors (9a-e, 10a-f, 11a-g) arranged at both end faces (2a, 2b) of the stator core, each path comprises L/2 groups (12a-d) of shaped conductors (5) successively connected in series, each group (12a-d) is formed by at least one arrangement (13a, 13b) of at least four shaped conductors (5) which are arranged alternately in two immediately adjacent layers (6a-g) and ar
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: January 7, 2025
    Assignee: Valeo Siemens eAutomotive Germany GmbH
    Inventors: Boris Dotz, Christian Finger-Albert
  • Publication number: 20250007346
    Abstract: A stator for an electrical machine includes a stator core in which a plurality of grooves distributed in a circumferential direction are formed and which has two opposite end faces, and a stator winding having a plurality of shaped conductors. The shaped conductors each have a first leg portion, a second leg portion and a head portion connecting the leg portions to one of the end faces. The leg portions extend through different grooves and are spaced apart from one another by an increment of a number of grooves.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 2, 2025
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Dotz BORIS, Christian FINGER-ALBERT
  • Publication number: 20240413688
    Abstract: A shaped conductor for a winding of an active part of a rotating electric machine, the shaped conductor being formed by a wire and having a first wire portion, which extends along the wire starting from a free end of the shaped conductor and, at the free end, has an end face, and a second wire portion, which adjoins the first wire portion, extends along the wire and has a cross-sectional area.
    Type: Application
    Filed: September 28, 2022
    Publication date: December 12, 2024
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Christian FINGER-ALBERT, Boris DOTZ, Sebastian BEETZ, David FÖRSTER
  • Patent number: 12100995
    Abstract: Described is a rotor (3) for an electrical machine (1) which comprises a rotor laminated core (6) divided into a plurality of sectors (B), in each of which there is arranged a permanent magnet assembly (4) which has two permanent magnets (13a, 13n) which are arranged in a V shape and which are positioned symmetrically with respect to a plane of symmetry (C) splitting the sector (B) into two half-sectors (D, D?). An outer contour (E) of the rotor laminated core (6) runs in each sector (B) symmetrically with respect to the plane of symmetry (C) and is formed in one half-sector (D, D?) by at least three different radii with just as many different centre points. The invention also relates to an electric machine (1) having such a rotor (3) and to a vehicle (17) having such an electric machine (1).
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: September 24, 2024
    Assignee: Valeo Siemens eAutomotive Germany GmbH
    Inventors: Boris Dotz, Christian Finger-Albert
  • Publication number: 20240154484
    Abstract: Stator for an electric machine, having a stator core with a first end face and a second end face and a stator winding, which has multiple part windings and forms a number of phase elements. Each part winding has multiple shaped conductors, which extend through the stator core along an axial direction at predetermined angular positions in the circumferential direction, a first end portion, which comprises a free end of the part winding and protrudes from the stator core at the first end face, and a second end portion. The first end portion protrudes from the stator core at one of the predetermined angular positions and extends in the axial direction at the predetermined angular position.
    Type: Application
    Filed: March 30, 2022
    Publication date: May 9, 2024
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Dotz BORIS, Christian FINGER-ALBERT
  • Patent number: 11938806
    Abstract: The invention is related to an integrated drive system including an electric motor having a stator and a rotor, an inverter configured to control the electric motor, a gearbox configured to transmit a torque provided by the electric motor, and a coolant system, wherein the coolant system includes a cooling fluid, configured to follow one cooling path for cooling the inverter, the rotor, the stator and the gearbox.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: March 26, 2024
    Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH
    Inventors: Christian Finger-Albert, Alexander Frank
  • Publication number: 20240030758
    Abstract: A stator core for receiving a stator winding and slot linings. A respective slot lining has a first end extending along an axial direction, a second end situated opposite the first end and extending along the axial direction, a first end section extending from the first end toward the second end, and a second end section extending from the second end toward the first end and is overlapped by the first end section on an outer side of the respective slot lining. A multiplicity of slots are arranged in the circumferential direction is formed in the stator core, a respective slot having a first slot wall which delimits the slot in the circumferential direction, a second slot wall which is situated opposite the first slot wall and delimits the slot in the circumferential direction, and a slot base which delimits the slot in the radial direction.
    Type: Application
    Filed: December 8, 2021
    Publication date: January 25, 2024
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Cristian CIUBOTARU, Boris DOTZ, Christian FINGER-ALBERT
  • Publication number: 20230361660
    Abstract: A method for producing a skewed stator having a stator winding composed of shaped conductors includes providing a stator core including a plurality of slots extending from a first end-face to an opposing second end-face and have a skew in the circumferential direction. An arrangement is provided having at least one shaped conductor having two straight leg portions oriented parallel to one another and connected by a connecting portion. Also included is inserting the arrangement into the stator core with the skewed slots at the first end-face by relative movement in the axial direction between the stator core and the arrangement, so that the leg portions of the at least one shaped conductor are bent as a result of the relative movement in such a way that the shape of the leg portions inserted into the stator core acquires a skew which corresponds to the skew of the slots.
    Type: Application
    Filed: September 21, 2021
    Publication date: November 9, 2023
    Applicant: VALEO EAUTOMOTIVE GERMANY GmbH
    Inventors: Regina BACH, Sebastian BEETZ, Boris DOTZ, Christian FINGER-ALBERT, Carsten SIEPKER, Sebastian WAIDER
  • Patent number: 11764628
    Abstract: A stator for an electric machine includes a plurality of pins arranged on concentric circles at different distances to a stator center in slots in the stator, and each concentric circle forms a layer. In each case, six pins in different layers are serially connected to one another and form a winding. A first pin of the winding is located in a first slot in the 6n-1 layer, wherein n is an integer. A second pin of the winding is located in a second slot in the 6n layer. A third pin of the winding is located in the first slot in the 6n-2 layer. A fourth pin of the winding is located in the second slot in the 6n-3 layer. A fifth pin is located in the first slot in the 6n-5 layer. A sixth pin of the winding is located in the second slot in the 6n-4 layer.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: September 19, 2023
    Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH
    Inventors: Boris Dotz, Christian Finger-Albert
  • Publication number: 20230246528
    Abstract: A method for producing a skewed stator having a stator winding made from segmented conductors includes providing a stator core having a large number of axially layered stator core elements which form a plurality of slots extending from one end-face of the stator core to an opposite end-face, and which extend parallel in an axial direction. A large number of segmented conductors are provided which each have two leg portions extending parallel to each other and a connection portion electrically connecting the leg portions. The leg portions are introduced into the slots, and the stator core elements are rotated in a circumferential direction so they are displaced relative to each other in a circumferential direction and the slots form an inclination in a circumferential direction. The leg portions are bent by the rotation have an inclination corresponding to the slots. The stator core elements are fixed relative to each other.
    Type: Application
    Filed: June 11, 2021
    Publication date: August 3, 2023
    Applicant: VALEO EAUTOMOTIVE GERMANY GmbH
    Inventors: Regina BACH, Sebastian BEETZ, Boris DOTZ, Christian FINGER-ALBERT, Carsten SIEPKER, Sebastian WAIDER
  • Publication number: 20230208221
    Abstract: A rotor for a rotary electric machine, capable of rotating around an axis of rotation, the rotor has first and second axial ends and includes a rotor body having a plurality of teeth circumferentially distributed around the axis and projecting radially, each tooth being in contact with two end plates. Also included is a rotor winding having a plurality of coils, each coil being wound on one of said teeth of the rotor body, each coil having two coil ends, two covers, a first cover located on the first axial end of the rotor and a second cover located on the second axial end of the rotor. The rotor has at least one non-conductive radial barrier that maintains a predetermined distance between the first coil end and the first cover on the one hand and between the second coil end and the second cover on the other hand.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Christian FINGER-ALBERT, Carsten SIEPKER
  • Publication number: 20230208237
    Abstract: Terminal device for a stator of an electric machine includes a central opening, and an insulation body surrounding the central opening about a longitudinal axis extending through the central opening. The insulation body includes a base and a plurality of concentrically arranged ribs protruding from the base into an axial direction and extending along a circumferential direction. A plurality of accommodation spaces are each formed between a respective pair of radially adjacent ribs and having the shape of a sector of an annulus.
    Type: Application
    Filed: December 23, 2022
    Publication date: June 29, 2023
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Rameshkumar GOPALAKRISHNAN, Christian FINGER-ALBERT, Maniprasath BALASUBRAMANIAN
  • Publication number: 20230208238
    Abstract: An electric drive for a vehicle includes an electric machine having a stator which has a stator core with a longitudinal axis and a stator winding, the stator winding forming a winding head at an axial face side of the stator core. Also included is an inverter, supply busbars connected to the inverter, and a terminal device including an insulation body includes a base and a plurality of concentrically arranged ribs protruding from the base into an axial direction and extending along a circumferential direction.
    Type: Application
    Filed: December 23, 2022
    Publication date: June 29, 2023
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Rameshkumar GOPALAKRISHNAN, Christian FINGER-ALBERT, Maniprasath BALASUBRAMANIAN
  • Publication number: 20230208088
    Abstract: A rotor including a rotor shaft, a rotor body formed of a stack of laminations, a field coil wound around the rotor body, and at least one slip ring mounted on the rotor shaft and configured to exchange electric power with an external power supply. Each of the at least one slip ring is configured to be electrically connected to an end of the field coil through an electrical connector. The electrical connector is pre-bended such that to comprise an axial portion and a radial portion respectively located on both sides of a bend, the axial portion being configured to pass through an axial bore of the rotor shaft, the radial portion being configured to pass through a through bore of the rotor shaft.
    Type: Application
    Filed: December 21, 2022
    Publication date: June 29, 2023
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Michael MENZ, Christian FINGER-ALBERT, Carsten SIEPKER, Nico WOLF, Regina BACH, Steffen FÖRTSCH, Christoph WIECZOREK
  • Publication number: 20230208236
    Abstract: A rotor including a rotor shaft, a rotor body formed of a stack of laminations having a plurality of teeth projecting radially, a field coil wound around each tooth of the plurality of teeth, and a plurality of wedge elements each having two lateral sides configured to come against respectively a corresponding tooth. A convex portion and a projecting portion adjoining the convex portion are arranged on each one of the two lateral sides of the corresponding wedge element, the convex portion complementing a corresponding concave portion of the corresponding tooth, and the projecting portion coming against a corresponding protruding portion of the corresponding tooth. The projecting portion is configured to exert a pressing force on the protruding portion such that to press the convex portion against the concave portion.
    Type: Application
    Filed: December 23, 2022
    Publication date: June 29, 2023
    Applicant: Valeo eAutomotive Germany GmbH
    Inventor: Christian FINGER-ALBERT
  • Publication number: 20230179052
    Abstract: A stator (1) for an electric machine (101), wherein the stator (1) has N?3 phases (U, V, W), P?2 pole pairs, and q?1 holes, the stator (1) comprises a stator core (3) having at least 2NPq slots (4) and a number of 2NPqL shaped conductors (5) arranged in an even number of L?4 layers (6a-h) radially layered in the slots (4), the shaped conductors (5) form 2q paths (7a-d) per phase and are arranged in 2P winding zones (8), which each extend radially over L layers (6a-h) and in the circumferential direction over at least q directly adjacent slots (4), the shaped conductors (5) of each path are connected in a series circuit, which is provided by connectors (9a-e, 10a-f, 11a-g) arranged at both end faces (2a, 2b) of the stator core, each path comprises L/2 groups (12a-d) of shaped conductors (5) successively connected in series, each group (12a-d) is formed by at least one arrangement (13a, 13b) of at least four shaped conductors (5) which are arranged alternately in two immediately adjacent layers (6a-g) and ar
    Type: Application
    Filed: March 26, 2021
    Publication date: June 8, 2023
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Boris Dotz, Christian Finger-Albert
  • Publication number: 20230108304
    Abstract: Method for producing an active part (1) for a rotating electric machine (101), comprising the following steps: providing a core (2) for the active part (1) and shaped conductors (6) which are inserted into the core (2), joining in each case two of the end faces (9) to one another; and welding a respective pair (10) of the end faces (9) by means of a laser beam which is guided along a pattern having a trajectory (15).
    Type: Application
    Filed: September 29, 2022
    Publication date: April 6, 2023
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Boris Dotz, Christian Finger-Albert, Sebastian Beetz, David Förster