公开(公告)号：EP4403865A1

公开(公告)日：2024-07-24

申请号：EP24151996.6

申请日：2024-01-16

Applicant: LG Electronics Inc.

Inventor： KIM, Jaeyoung ,  LEE, Sukyoung ,  LEE, Sangyeul ,  LEE, Eungyul

IPC: F28F1/32 ,  F28D1/04

CPC classification number: F28F17/005 ,  F28F1/32 ,  F28D1/04 ,  F28D1/0477 ,  F28D2021/006820130101 ,  F28D2021/00720130101 ,  F28D2021/007120130101 ,  F28F2215/0020130101

Abstract: A heat exchanger includes: a heat transfer pipe to guide a refrigerant; and a plurality of fins spaced apart from each other to allow air to pass in a first direction, the plurality of fins each having a through-hole through which the heat transfer pipe is installed, wherein the plurality of fins each includes: a corrugated portion formed in a zigzag shape proceeding in the first direction, which is an air flow direction; and a sheet portion recessed from the corrugated portion around the through-hole to be parallel with the first direction, and, when dividing a fin, among the plurality of fins, into a plurality of units with respect to one sheet portion, an area of the sheet portion corresponds to 16% or more of an area of one unit, thereby allowing air to be actively mixed in a region adjacent to the corrugated portion and the through-hole.

公开(公告)号：EP4403866A1

公开(公告)日：2024-07-24

申请号：EP24151997.4

申请日：2024-01-16

Applicant: LG Electronics Inc.

Inventor： LEE, Sangyeul ,  LEE, Sukyoung ,  KIM, Jaeyoung ,  LEE, Eungyul

IPC: F28F1/32 ,  F28F17/00 ,  F28D1/04

CPC classification number: F28D1/04 ,  F28F1/32 ,  F28F17/005 ,  F28D2021/006820130101 ,  F28D2021/00720130101 ,  F28D2021/007120130101

Abstract: A heat exchanger according to the present disclosure includes: a heat transfer tube configured to guide a refrigerant; and a plurality of fins each having a through-hole through which the heat transfer tube is vertically installed, the plurality of fins being spaced apart from each other to allow air to pass in a first direction, wherein each of the plurality of fins includes: a corrugated portion formed in a zigzag shape in the first direction; a sheet portion disposed to surround the through-hole; and a connecting portion configured to connect the sheet portion and the corrugated portion, and wherein an inclined contact point, which is the highest position of the connecting portion and the corrugated portion, is located lower than a valley portion contact point, which is the lowest position of the connecting portion and the corrugated portion in a second direction perpendicular to the first direction. Thus, by controlling an angle of a contact point, which is an air stagnation section between a sheet portion through which a through-hole passes and a corrugated portion, the mixing of air passing through the sheet portion and air passing through an inclined portion may be facilitated. In addition, as a coordinate of a contact point, which is the highest point of an inclined portion between the sheet portion and the corrugated portion, is limited within a predetermined range, the flow of air may be induced without causing stagnation to thereby improve the heat transfer performance.

公开(公告)号：EP4006476A1

公开(公告)日：2022-06-01

申请号：EP20843243.5

申请日：2020-07-09

Applicant: LG Electronics Inc.

Inventor： CHOI, Jiwon ,  LEE, Sukyoung ,  LEE, Hanchoon

IPC: F28D7/16 ,  F28F9/22 ,  F28D21/00 ,  F25B27/02

Abstract: A heat exchanger according to an embodiment of the present disclosure includes a housing, a gas inflow pipe configured to flow exhaust gas in the housing and a gas exhaust pipe configured to discharge the exhaust gas to the outside of the housing, a cooling water inflow pipe configured to flow cooling water in the housing and a cooling water outflow pipe configured to flow out the cooling water heat-exchanged with the exhaust gas to the outside of the housing, a plurality of tubes extending in the housing in the longitudinal direction of the housing and through which the cooling water flowing therein through the cooling water inflow pipe flows, and a plurality of baffles which are installed in the housing to insert the plurality of tubes thereinto and which are spaced apart from each other by a predetermined distance and are disposed, in which the baffle may be a first curved part configured to extend to be rounded with a first curvature, a first straight part configured to extend linearly from one end part of the first curved part, a second straight part configured to extend linearly from the other end part of the first curved part, and a second curved part positioned between the first and second straight parts and configured to extend to be rounded with a second curvature, and the first straight part and the second straight part may be formed in a direction crossing each other.