公开(公告)号：US11735989B2

公开(公告)日：2023-08-22

申请号：US17037129

申请日：2020-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Junseong Park ,  Euisuk Jung ,  Seungjin Oh ,  Hajeong Lee

IPC: H02K17/08 ,  F25B31/02 ,  H02K17/16

CPC classification number: H02K17/08 ,  F25B31/026 ,  H02K17/165

Abstract: An electric motor and a compressor having an electric motor are disclosed herein. The electric motor may include a stator having a stator core and a stator coil, and a rotor provided with a rotational shaft and rotatably disposed with respect to the stator. The stator coil may include a main winding and an auxiliary winding connected to each other with a phase difference. The main winding may be divided into a plurality of main windings so as to be connected to each other and disconnected from each other, and the stator coil may further include a winding changeover switch configured to provide connection and disconnection between the plurality of main windings. Such a configuration may allow operating efficiency at a low load to be increased.

公开(公告)号：US20210218323A1

公开(公告)日：2021-07-15

申请号：US17037129

申请日：2020-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Junseong PARK ,  Euisuk Jung ,  Seungjin OH ,  Hajeong LEE

IPC: H02K17/08 ,  H02K17/16 ,  F25B31/02

Abstract: An electric motor and a compressor having an electric motor are disclosed herein. The electric motor may include a stator having a stator core and a stator coil, and a rotor provided with a rotational shaft and rotatably disposed with respect to the stator. The stator coil may include a main winding and an auxiliary winding connected to each other with a phase difference. The main winding may be divided into a plurality of main windings so as to be connected to each other and disconnected from each other, and the stator coil may further include a winding changeover switch configured to provide connection and disconnection between the plurality of main windings. Such a configuration may allow operating efficiency at a low load to be increased.