Patents by Inventor Boris DOTZ

Boris DOTZ 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: 12633809
    Abstract: Described is a method for producing an active part for a rotating electric machine. The method includes providing a core for the active part and shaped conductors which are inserted into the core. The core has an end side and a further end side situated opposite the end side. The core has slots arranged in a circumferential direction in which the shaped conductors are arranged. The shaped conductors extend from the end side to the further end side, and each shaped conductor has a free end which protrudes at the end side and has an end face. Two end faces are joined together and welded by means of a laser beam, which is guided along a pattern having a trajectory.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: May 19, 2026
    Assignee: Valeo eAutomotive Germany GmbH
    Inventors: Boris Dotz, Christian Finger-Albert, Sebastian Beetz, David Förster
  • Patent number: 12580431
    Abstract: A stator for an electric machine includes a distributed stator winding with N phase windings, P pole pairs, and a stator core having slots in which the stator winding is arranged. The stator core is subdivided into 2·P·N winding zones following each other in the circumferential direction and including axial recesses which form at least one set of recesses following each other. At least two recesses are part of one of the winding zones. Each pair of recesses that adjoin each other in the circumferential direction and are part of the same winding zone has a first angular distance from each other in the circumferential direction. Each pair of recesses which adjoin each other and are part of different winding zones has a second angular distance. In at least one set, the first and angular distance differ such that the set is an irregular set.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: March 17, 2026
    Assignee: Valeo eAutomotive Germany GmbH
    Inventor: Boris Dotz
  • Patent number: 12525836
    Abstract: Stator for an electric machine has a number N?3 of phases, a number P?2 of pole pairs and a hole count q=2, and a stator core, which has two faces and a plurality of slots which are divided into first to L-th layers, where L?4. The shaped conductors form for each phase first to fourth paths and are arranged in 2·P winding zones, and each winding zone is divided into a first and a second sub-winding zone and each sub-winding zone extends over the L layers. The shaped conductors of a respective path are interconnected by connectors, which connect shaped conductors in adjacent winding zones of the same phase in an alternating manner at the first face and the second face of the stator core, to form a series connection with a first end shaped conductor.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: January 13, 2026
    Assignee: Valeo eAutomotive Germany GmbH
    Inventor: Boris Dotz
  • Patent number: 12407200
    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: Grant
    Filed: December 8, 2021
    Date of Patent: September 2, 2025
    Assignee: Valeo eAutomotive Germany GmbH
    Inventors: Cristian Ciubotaru, Boris Dotz, Christian Finger-Albert
  • Patent number: 12401241
    Abstract: A rotor module for a rotor of a rotary electric machine with an axis of rotation having a stator and a stator core including radially oriented stator teeth is disclosed. The rotor module has a rotor module core and permanent magnets defining a number of magnetic pole pairs, including a first pole and a second pole. The first and second poles of each magnetic pole pair are adjacent. The permanent magnets define first magnet arrangements defining each first pole and second magnet arrangements defining each second pole. A first angle between the first and second pole of each pair is equal to 360° divided by two times the number of magnetic pole pairs. A second angle between a second pole of a first pole pair and a first pole of a second pole pair is the sum of the first angle and a first shift angle.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: August 26, 2025
    Assignee: Valeo eAutomotive Germany GmbH
    Inventor: Boris Dotz
  • Patent number: 12362617
    Abstract: Drive equipment for an electric vehicle is disclosed with a stator which is configured for generating a magnetic rotating field, a stator core in which a multiplicity of slots disposed in the circumferential direction are configured, and a stator winding which occupies a plurality of winding zones in the slots. Each winding zone in a cross-sectional plane that is perpendicular to the longitudinal axis by way of a centric radial division is sub-divided into a first side and a second side. Converter equipment converts magnetic energy of the rotating field into a rotating output movement of the drive equipment. The converter equipment has a rotor which conjointly with the stator forms a rotating electric machine such that the rotor is able to be set in a rotating rotor movement which, as a function of the rotating field, selectively has one of two opposite rotation directions.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: July 15, 2025
    Inventors: Boris Dotz, Daniel Fritsch
  • Patent number: 12334789
    Abstract: Stator, which has N?3 phases, P?2 pole pairs and a hole count q=2 and also includes a stator core with a plurality of slots and a plurality of shaped conductors. The shaped conductors form for each phase a first and a second path and are arranged in 2·P winding zones which are each subdivided into a first and a second sub-winding zone. The shaped conductors of a respective path are interconnected to form a series connection with a first end-shaped conductor and a second end-shaped conductor by connectors, which connect shaped conductors in adjacent winding zones of the same phase in an alternating manner at two axial face sides. The shaped conductors of a respective path form a first to third section of shaped conductors successively in the series connection. The first and third sections include the first and second end-shaped conductor respectively.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: June 17, 2025
    Assignee: Valeo eAutomotive Germany GmbH
    Inventor: Boris Dotz
  • Patent number: 12328047
    Abstract: A stator having a stator core which has two end sides disclosed. A multiplicity of grooves are configured in the stator core. A stator winding occupies a plurality of winding zones in the grooves, a number of N strands has a number of 2·P poles, and the number of grooves is 2·P·N·q, where q?2. Each winding zone extends across at least q+1 of the grooves, and each winding zone is radially subdivided into first to Lth layers. The layers configure first to (L/2)th double layers, and a number of the double layers is less than the number of the other double layers. Each winding zone in the circumferential direction is subdivided into first to qth sub-winding zones, and a respective phase winding for one of the strands has at least one sub-winding which configures a current path and comprises internal portions that are disposed within the grooves.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: June 10, 2025
    Inventors: Boris Dotz, Daniel Fritsch
  • Publication number: 20250158469
    Abstract: A stator for an electrical machine includes: a stator core which has a longitudinal axis, an end side, a further end side opposite the end side and a plurality of slots arranged in the circumferential direction and extending from the end side to the further end side, and a stator winding which has a number N of strands, in which N?3. Each strand occupies a plurality of winding zones in the slots and has at least one continuous current path with a first end and with a second end opposite the first end.
    Type: Application
    Filed: December 19, 2022
    Publication date: May 15, 2025
    Applicant: Valeo eAutomotive Germany GmbH
    Inventor: Boris DOTZ
  • Patent number: 12294264
    Abstract: A stator for an electric machine has a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots and each concentric circle forms a layer, wherein four pins in different layers are respectively 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, a fourth pin of the winding is located in the second slot in the 4n?1 layer.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: May 6, 2025
    Assignee: Valeo Siemens eAutomotive Germany GmbH
    Inventor: Boris Dotz
  • 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: 12231008
    Abstract: A stator for an electric machine has a plurality of pins, which are arranged on concentric circles at different distances from a stator center point in slots and each concentric circle forms a layer, wherein four pins in different layers are respectively 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?1 layer, wherein n is a natural number, a second pin of the winding is located in a second slot in the 4n 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?3 layer, 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: February 18, 2025
    Assignee: Valeo Siemens eAutomotive Germany GmbH
    Inventor: Boris Dotz
  • 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: 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: 20240204607
    Abstract: An electric machine with a housing, a rotor with a rotor cooling channel, and a stator with stator cooling channels. The housing has a distribution system for guiding a coolant flow from the rotor cooling channel to the stator cooling channels.
    Type: Application
    Filed: December 20, 2023
    Publication date: June 20, 2024
    Applicant: Valeo eAutomotive Germany GmbH
    Inventors: Philipp SOENTGERATH, Boris DOTZ
  • Publication number: 20240048006
    Abstract: A stator for an electric machine, wherein the stator has a stator winding with a number N of phase windings, a number P of pole pairs, and a stator core in which slots are formed, wherein the stator winding is arranged in the slots; wherein the stator core is divided into 2·P·N winding zones following one another uniformly in the circumferential direction, wherein the stator core has a multiplicity of axial recesses, the recesses form at least a first arrangement and a second arrangement of recesses which follow one another in the circumferential direction.
    Type: Application
    Filed: December 8, 2021
    Publication date: February 8, 2024
    Applicant: Valeo eAutomotive Germany GmbH
    Inventor: Boris DOTZ
  • Publication number: 20240030768
    Abstract: Stator for an electric machine has a number N?3 of phases, a number P?2 of pole pairs and a hole count q=2, and a stator core, which has two faces and a plurality of slots which are divided into first to L-th layers, where L?4. The shaped conductors form for each phase first to fourth paths and are arranged in 2·P winding zones, and each winding zone is divided into a first and a second sub-winding zone and each sub-winding zone extends over the L layers. The shaped conductors of a respective path are interconnected by connectors, which connect shaped conductors in adjacent winding zones of the same phase in an alternating manner at the first face and the second face of the stator core, to form a series connection with a first end shaped conductor.
    Type: Application
    Filed: December 17, 2021
    Publication date: January 25, 2024
    Applicant: Valeo eAutomotive Germany GmbH
    Inventor: Boris DOTZ
  • 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