Patents Assigned to GALATECH, INC.
  • Methods and systems for stator cooling
    Patent number: 10886814
    Abstract: A method of fabricating a stator for an electric motor is provided. The method includes providing a plurality of stator laminations. Each stator lamination of the plurality of stator laminations is a copy of the same stator lamination pattern. The method further includes stacking the plurality of stator laminations in a sequence along an axis, comprising periodically varying rotational orientations of the stator laminations in the sequence. The method further includes joining the plurality of stator laminations as stacked in the sequence.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: January 5, 2021
    Assignee: GALATECH, INC.
    Inventors: Wenjun Liu, Robert James Ramm
  • Inverter capacitor with phase-out bus bar
    Patent number: 10574151
    Abstract: The various implementations described herein include inverter devices and systems. In one aspect, an inverter includes: a case; a capacitor within the case having a first terminal and a second terminal; a first bus bar including a first portion within the case and a second portion extending from the case to contact a first transistor; a second bus bar including a first portion situated in the case and a second portion extending from the case to contact a second transistor; and a phase-out bus bar including a first portion situated in the case, a second portion extending from the case to contact the first transistor, and a third portion extending from the case to contact the second transistor.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 25, 2020
    Assignee: GALATECH, INC.
    Inventors: Wenjun Liu, Robert James Ramm
  • Casting for motor and gearbox with integrated inverter
    Patent number: 10464439
    Abstract: A powertrain for an electric vehicle includes a casting that houses an electric motor, an inverter, and a gearbox. The inverter, which is coupled to the electric motor, converts direct current from a battery to alternating current for the electric motor. The gearbox is connected to the electric motor. The electric motor includes a stator and a rotor with a rotor shaft that extends beyond the stator. The inverter may be situated on an opposite side of the rotor shaft from an axle to which the gearbox is coupled.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: November 5, 2019
    Assignee: GALATECH, INC.
    Inventors: Wenjun Liu, Robert J. Ramm
  • Weld joint with constant overlap area
    Patent number: 10290616
    Abstract: A packaged semiconductor device has a plurality of leads. A respective lead is to be welded to an electrical coupling that has a substantially rectangular end section. The end section has a width that is greater than a width of the respective lead. The respective lead is aligned within the width of the end section, such that the respective lead extends in a direction substantially perpendicular to the width of the end section. With the respective lead and the end section aligned, the respective lead is welded to the end section.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: May 14, 2019
    Assignee: GALATECH, INC.
    Inventors: Wenjun Liu, Robert James Ramm
  • Inverter capacitor with phase-out bus bar
    Patent number: 10236786
    Abstract: The various implementations described herein include inverter devices and systems. In one aspect, an inverter includes: a case; a capacitor within the case having a first terminal and a second terminal; a first bus bar including a first portion within the case and a second portion extending from the case to contact a first transistor; a second bus bar including a first portion situated in the case and a second portion extending from the case to contact a second transistor; and a phase-out bus bar including a first portion situated in the case, a second portion extending from the case to contact the first transistor, and a third portion extending from the case to contact the second transistor.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: March 19, 2019
    Assignee: GALATECH, INC.
    Inventors: Wenjun Liu, Robert James Ramm
  • Inverter capacitor with phase-out bus bar
    Patent number: 10211755
    Abstract: The various implementations described herein include inverter devices and systems. In one aspect, an inverter includes: a case; a capacitor within the case having a first terminal and a second terminal; a first bus bar including a first portion within the case and a second portion extending from the case to contact a first transistor; a second bus bar including a first portion situated in the case and a second portion extending from the case to contact a second transistor; and a phase-out bus bar including a first portion situated in the case, a second portion extending from the case to contact the first transistor, and a third portion extending from the case to contact the second transistor.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: February 19, 2019
    Assignee: GALATECH, INC.
    Inventors: Wenjun Liu, Robert James Ramm
  • Inverter capacitor with phase-out bus bar
    Patent number: 9948208
    Abstract: The various implementations described herein include inverter devices and systems. In one aspect, an inverter includes: a case; a capacitor within the case having a first terminal and a second terminal; a first bus bar including a first portion within the case and a second portion extending from the case to contact a first transistor; a second bus bar including a first portion situated in the case and a second portion extending from the case to contact a second transistor; and a phase-out bus bar including a first portion situated in the case, a second portion extending from the case to contact the first transistor, and a third portion extending from the case to contact the second transistor.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: April 17, 2018
    Assignee: GALATECH, INC.
    Inventors: Wenjun Liu, Robert James Ramm