公开(公告)号：US12163688B2

公开(公告)日：2024-12-10

申请号：US17563492

申请日：2021-12-28

Applicant: LG Electronics Inc.

Inventor： Yonghwa Lee ,  Yongsoo Cho ,  Jeongeon Oh

IPC: F24F11/38 ,  F24F11/88 ,  F24F11/89

Abstract: The present disclosure relates to a motor driving apparatus and an air conditioner including the same. The motor driving apparatus and the air conditioner including the same according to an embodiment of the present disclosure include: a switching device disposed between an inverter and a motor, wherein while windings of the motor are connected in a first connection, an output current at a first level is output from the inverter, and while the windings of the motor are connected in a second connection, the output current at the first level is output from the inverter, such that it is possible to determine whether the switching device for switching connection of the motor is abnormal.

公开(公告)号：US11549510B2

公开(公告)日：2023-01-10

申请号：US16516598

申请日：2019-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Bumjune Seo ,  Ochang Gwon ,  Yongsoo Cho ,  Jongtae Her

IPC: F04C18/02

Abstract: A motor-operated compressor includes a compression unit including a compression chamber formed by a plurality of scrolls engaged with each other. The compressor includes a rotation shaft having one end coupled to one of the scrolls and a rotor coupled with another end of the rotation shaft. The compressor includes a stator radially separated from the rotor by a predetermined gap. The compressor includes a casing having a motor chamber. The stator is inserted in the motor chamber and divides the motor chamber into a first space and a second space. The casing includes an inlet port coupled to the first space to guide a refrigerant toward the motor chamber. The casing also includes a suction guide passage coupled to the second space to guide the refrigerant sucked through the inlet port toward the compression unit. A communication passage portion in the rotation shaft communicates the first and second spaces.