公开(公告)号：EP3677782A1

公开(公告)日：2020-07-08

申请号：EP20150142.6

申请日：2020-01-03

Applicant: LG Electronics Inc.

Inventor： HER, Jongtae ,  MIN, Dongwoo ,  LEE, Gyeongbeom ,  LEE, Byeongchul

IPC: F04C18/02 ,  F04C29/12 ,  F01C21/02

Abstract: A motor-operated compressor includes a compression part including a fixed scroll and an orbiting scroll that form a compression chamber, and configured to compress fluid by an orbiting motion of the orbiting scroll relative to the fixed scroll; a motor part installed at one side of the compression part, and configured to generate a drive force to cause the orbiting scroll to make the orbiting motion; a rotary shaft connected to the motor part and the orbiting scroll, respectively, to transmit the drive force generated by the motor part to the orbiting scroll; a main frame disposed between the compression part and the motor part in an axial direction of the rotary shaft, and configured to support the fixed scroll in the axial direction of the rotary shaft; a discharge chamber formed between the fixed scroll and the main frame, and configured to be supplied with fluid discharged from the compression part; and a discharge part formed at the main frame and communicated with outside of the motor-operated compressor and the discharge chamber, respectively, to cause fluid discharged from the compression part to the discharge chamber to be discharged to the outside of the motor-operated compressor.

公开(公告)号：EP3805564A1

公开(公告)日：2021-04-14

申请号：EP20158548.6

申请日：2020-02-20

Applicant: LG Electronics Inc.

Inventor： HER, Jongtae ,  MIN, Dongwoo ,  PARK, Honghee ,  LEE, Gyeongbeom

IPC: F04C29/00 ,  F04C29/04

Abstract: Disclosed is about a motor operated compressor. The motor operated compressor according to an embodiment of the present disclosure is applied with a vapor injection method. In order to implement the vapor injection method, a vapor refrigerant is supplied to the motor operated compressor.
The vapor refrigerant flows along a vapor refrigerant passage formed inside a wall portion of a main housing. The vapor refrigerant passage is in communication with a scroll inner passage formed in a fixed scroll. The scroll inner passage communicates with a compression chamber, so that the vapor refrigerant introduced in is flowed into the compression chamber.
Accordingly, the vapor injection method may be applied without having a separate member to form a passage in an inner space of the main housing. Therefore, a utilization of the inner space of the main housing is improved, and passages of the vapor refrigerant and the refrigerant can be formed in a simple manner.

公开(公告)号：EP3617510A1

公开(公告)日：2020-03-04

申请号：EP19189572.1

申请日：2019-08-01

Applicant: LG ELECTRONICS INC.

Inventor： HER, Jongtae ,  MIN, Dongwoo ,  LEE, Byeongchul ,  JANG, Kitae

IPC: F04C18/02 ,  F04C29/12

Abstract: A motor operated compressor according to the present disclosure comprises a drive motor having a stator and a rotor; a rotary shaft coupled to the rotor; a first scroll disposed on one side of the drive motor, eccentrically coupled to the rotary shaft, and orbitally moved by the rotary shaft; and a second scroll fixed at a position facing the first scroll, and coupled to the first scroll to form a compression chamber together with the first scroll, wherein the rotary shaft includes a hollow portion formed inside the rotary shaft along an axial direction; and an eccentric portion having a rotary shaft side discharge hole formed eccentrically from the center of the rotary shaft, and communicated from an outer circumferential surface to the hollow portion, and the first scroll is provided with a rotary shaft coupling portion formed to surround an outer circumferential surface of the eccentric portion, and the rotary shaft coupling portion is provided with a first scroll side discharge holes formed at positions periodically facing rotary shaft side discharge holes to discharge compressed fluid to the rotary shaft side discharge holes.