Patents by Inventor Joonas HELANDER

Joonas HELANDER 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: 10547220
    Abstract: The electric machine comprises a rotor, a stator and a support structure. The stator comprises a stator core and a stator frame. The stator frame has axial (X-X) ends and longitudinal sides. The rotor is supported with bearings on the support structure. An end support structure of cast iron is provided at each end of the stator frame. The end support structure is formed of a longitudinal middle portion and two upwards directed end portions. The end support structure extends in a traverse direction between outer edges of the axial (X-X) end of the stator frame. The end support structure is attached with compression joints to the support structure and to the axial (X-X) end of the stator frame.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: January 28, 2020
    Assignee: ABB Schweiz AG
    Inventors: Joonas Helander, Moritz Grün, Ilkka Vainio
  • Patent number: 10389190
    Abstract: The electric machine comprises a rotor, a stator surrounding the rotor and a support structure. The stator has a longitudinal center axis and is supported on the support structure with support elements. The stator comprises a cylindrical stator core having a laminated structure and slots for a stator winding and a stator frame surrounding the stator core. The stator frame comprises two opposite end constructions and at least one frame plate located between the end constructions. A support element is located between each end construction and the adjacent frame plate and between adjacent frame plates. The support element is made of cast iron and attached to the end constructions, the frame plate and the support structure with fastening means based on a compression joint, whereby the stator frame becomes attached to the support structure via the support elements.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: August 20, 2019
    Assignee: ABB Schweiz AG
    Inventors: Joonas Helander, Moritz Grün, Ari Vartiainen
  • Patent number: 10110087
    Abstract: Electric machine comprises a rotor and a stator surrounding the rotor. The stator comprises a cylindrical stator core having a laminated structure and slots for a stator winding and a stator frame surrounding the stator core. The stator core is attached with fastening brackets by means of fastening means based on a compression joint to the stator frame. The stator frame comprises two opposite end constructions and a frame plate located between the end constructions. Back beams extending in the axial direction of the stator are attached to an outer surface of the stator core. Each fastening bracket comprises two perpendicular branches, a first branch attached to the stator frame plate and a second branch attached to the back beam by fastening means based on a compression joint. The fastening means passes through openings in each branch.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: October 23, 2018
    Assignee: ABB Schweiz AG
    Inventors: Joonas Helander, Moritz Grün, Ari Vartiainen, Risto Pulkkinen
  • Publication number: 20180248422
    Abstract: The electric machine comprises a rotor, a stator and a support structure. The stator comprises a stator core and a stator frame. The stator frame has axial (X-X) ends and longitudinal sides. The rotor is supported with bearings on the support structure. An end support structure of cast iron is provided at each end of the stator frame. The end support structure is formed of a longitudinal middle portion and two upwards directed end portions. The end support structure extends in a traverse direction between outer edges of the axial (X-X) end of the stator frame. The end support structure is attached with compression joints to the support structure and to the axial (X-X) end of the stator frame.
    Type: Application
    Filed: March 11, 2016
    Publication date: August 30, 2018
    Inventors: Joonas HELANDER, Moritz GRÜN, Ilkka VAINIO
  • Publication number: 20180198328
    Abstract: The electric machine comprises a rotor, a stator surrounding the rotor and a support structure. The stator has a longitudinal centre axis and is supported on the support structure with support elements. The stator comprises a cylindrical stator core having a laminated structure and slots for a stator winding and a stator frame surrounding the stator core. The stator frame comprises two opposite end constructions and at least one frame plate located between the end constructions. A support element is located between each end construction and the adjacent frame plate and between adjacent frame plates. The support element is made of cast iron and attached to the end constructions, the frame plate and the support structure with fastening means based on a compression joint, whereby the stator frame becomes attached to the support structure via the support elements.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 12, 2018
    Inventors: Joonas HELANDER, Moritz GRÜN, Ari VARTIAINEN
  • Publication number: 20180175697
    Abstract: Electric machine comprises a rotor and a stator surrounding the rotor. The stator comprises a cylindrical stator core having a laminated structure and slots for a stator winding and a stator frame surrounding the stator core. The stator core is attached with fastening brackets by means of fastening means based on a compression joint to the stator frame. The stator frame comprises two opposite end constructions and a frame plate located between the end constructions. Back beams extending in the axial direction of the stator are attached to an outer surface of the stator core. Each fastening bracket comprises two perpendicular branches, a first branch attached to the stator frame plate and a second branch attached to the back beam by fastening means based on a compression joint. The fastening means passes through openings in each branch.
    Type: Application
    Filed: March 24, 2015
    Publication date: June 21, 2018
    Inventors: Joonas HELANDER, Moritz GRÜN, Ari VARTIAINEN, Risto PULKKINEN