Lg Electronics Inc.

Lg Magna E-powertrain Co., Ltd.

Somi Sim

Sungjin Kim

Kyusung Park

A current sensor assembly includes a housing; a plurality of shields which are accommodated inside the housing and open toward the top of the housing; a plurality of bus bars to which three-phase current is applied and which are arranged spaced apart from each other so as to go past the plurality of shields, respectively; and a current sensor unit which includes a printed circuit board and a plurality of current sensors disposed on the printed circuit board to measure the current applied to the bus bars. The shields, the bus bars, and the current sensor unit are configured to be accommodated inside the housing, and the current sensors are spaced apart from the bus bars and disposed in the inner spaces of the shields.

Current sensor assembly and inverter assembly having a plurality of sensors

A rotor for an electric motor includes a rotor core defining a plurality of slots that are spaced apart from each other and arranged along a circumferential direction of the rotor core, and a rotor winding provided at the plurality of slots and configured to flow current. The rotor winding includes a plurality of conductor bars that extend in an axial direction of the rotor core and that are disposed in a slot of the plurality of slots, and end rings that are disposed at both sides of the plurality of conductor bars and that connect the plurality of conductor bars to each other. The rotor further includes deformation preventing units each of which surrounds and contacts an outer surface of one of the end rings. The deformation preventing units are configured to restrict deformation of the end rings.

Rotor for electric motor

The present invention relates to a rotor assembly for an electric motor, including: a rotor; a rotary shaft passing through the center of the rotor and coupled to the rotor; and a fastening member fastened to at least one side of the rotary shaft to prevent the rotor from being moved along the rotary shaft, wherein the fastening member includes a body portion having at least a part brought into contact with the rotary shaft; and a flange portion connected to the body portion, part of the flange portion being pressed against the rotor side to prevent the axial movement of the rotor.

Growing community of inventors

Seoul, South Korea

Somi Sim