公开(公告)号：US20220145872A1

公开(公告)日：2022-05-12

申请号：US17491682

申请日：2021-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Mingeon JEONG ,  Bokann Park ,  Kyoungjun Park ,  Seeun Kim

IPC: F04B39/02 ,  F04B39/00 ,  F04B35/04

Abstract: A hermetic compressor may include a frame, a crankshaft, and an oil pump. The crankshaft may be rotatably mounted to the frame. The oil pump may be mounted to a lower portion of the crankshaft to be rotatable together with the crankshaft. The oil pump may pump oil from a lower region to an upper region of a shell using centrifugal force. The crankshaft may be provided with a hollow hole therein that is inclined in two directions with respect to an axial direction of the crankshaft. This may result in increasing a dynamic pressure for scattering the oil to the upper region of the shell and an oil supply amount.

公开(公告)号：US11581766B2

公开(公告)日：2023-02-14

申请号：US16567754

申请日：2019-09-11

Applicant: LG Electronics Inc.

Inventor： Woogyong Yim ,  Jehoon Kim ,  Ochang Gwon ,  Kyoungjun Park

IPC: H02K1/276

Abstract: A drive motor includes a stator having an accommodating space and a rotor rotatably provided in the accommodating space and rotated by a magnetic interaction with the stator, wherein the rotor includes a rotor core into which a magnetic member is inserted and first and second flux barriers formed to penetrate through the rotor core and extending along a circumferential direction of the rotor core from both sides of the magnetic member, wherein a length of the first flux barrier and a length of the second flux barrier are different from each other.

公开(公告)号：US11359629B2

公开(公告)日：2022-06-14

申请号：US17013064

申请日：2020-09-04

Applicant: LG ELECTRONICS INC.

Inventor： Honghee Park ,  Junghoon Park ,  Kyoungjun Park ,  Byeongchul Lee

IPC: F04C18/02 ,  F04C27/00 ,  F04C23/02

Abstract: A motor operated compressor according to the present embodiment may include a main housing; an electric motor unit; a rotation shaft; a fixed scroll coupled to an inner space of the main housing; an orbiting scroll provided that performs an orbiting movement with respect to the fixed scroll; a rear housing provided on an opposite side to the fixed scroll with the orbiting scroll therebetween and coupled to the main housing, and disposed with a first space to communicate with a discharge side of the compression chamber; and a first sealing portion provided to surround the first space to form a second space on an outer edge of the first space, wherein the second space includes a first region and a second region in fluid communication with each other. Accordingly, a horizontal motor operated compressor in which a frame and a fixed scroll are integrated may be provided.

公开(公告)号：US20220170475A1

公开(公告)日：2022-06-02

申请号：US17482712

申请日：2021-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Inbum Park ,  Kyoungjun Park ,  Kiyeon Lee

IPC: F04D29/06 ,  F04D25/02

Abstract: A hermetic compressor includes: a compression unit; a motor unit; a crankshaft that connects the motor unit and the compression unit; and a bearing member provided with a shaft receiving hole so as to support the crankshaft in a radial direction. An oil supply groove that defines a part of an oil supply passage is formed on an outer circumferential surface of the crankshaft, and the oil supply groove is provided between the outer circumferential surface of the crankshaft and an inner circumferential surface of the bearing member facing the outer circumferential surface of the crankshaft to be located out of pressed regions generated when the crankshaft rotates. As the oil supply groove that supplies oil to a bearing surface between the crankshaft and a main bearing is formed by avoiding the pressed regions, oil may be smoothly supplied to the bearing surface.