公开(公告)号：US20240183619A1

公开(公告)日：2024-06-06

申请号：US18562990

申请日：2022-05-13

Applicant: Danfoss A/S

Inventor： Leilei WANG ,  Yanxing LI ,  Jing YANG ,  Weijun WU ,  Yan LI ,  Jing YUAN

IPC: F28D7/16 ,  F28F9/02

CPC classification number: F28D7/163 ,  F28F9/02

Abstract: A heat exchanger and an air conditioning system having same, wherein heat exchanger includes a first heat exchanger core and a second heat exchanger core, the first heat exchanger core including first heat exchange tubes and first fins, and the second heat exchanger core including second heat exchange tubes and second fins. The angle between the first heat exchanger core and the second heat exchanger core is α, the length of the first heat exchange tube is TL, the refrigerant circulation area of the first heat exchange tube is S, the width of the first fin is FW, the density of the first fin is FP, the height of the first fin is FH, the width of the first heat exchanger core is ML, the length of the second heat exchange tube is tl, the refrigerant circulation area of the second heat exchange tube is s, the width of the second fin is fw, the density of the second fin is fp, the height of the second fin is fh, the width of the second heat exchanger core is ml, and 0.016≤(TL×ML×FW×FP×FH×s×cos α)/(tl×ml×fw×fp×fh×S)≤64. In this way, the water drainage performance of the heat exchanger is improved, and the problem of water being blown from the heat exchanger is solved.

公开(公告)号：US20240159468A1

公开(公告)日：2024-05-16

申请号：US18259672

申请日：2021-12-23

Applicant: Danfoss A/S

Inventor： Jing YUAN ,  Leilei WANG ,  Feng ZHANG ,  Xuemei YANG

IPC: F28D1/053 ,  F28F1/02

CPC classification number: F28D1/05366 ,  F28F1/022

Abstract: A heat exchanger including: a collecting pipe that has a collecting pipe wall; and a plurality of flat pipes. The plurality of flat pipes include two groups of first flat pipes, which are positioned on the outermost side in an axial direction of the collecting pipe, and a second flat pipe, which is positioned between the two groups of first flat pipes; and the collecting pipe includes two first parts, which correspond to the two groups of first flat pipes in the axial direction of the collecting pipe, and a second part, which is positioned between the two first parts. The tensile strength of at least one group of first flat pipes from the two groups of first flat pipes in the axial direction of the collecting pipe is greater than the tensile strength of the second flat pipe in the axial direction of the collecting pipe and/or the tensile strength of at least one first part from the two first parts of the collecting pipe in the axial direction of the collecting pipe is greater than the tensile strength of the second part of the collecting pipe in the axial direction of the collecting pipe. By means of the heat exchanger in the present invention, the bursting strength of the heat exchanger can be improved.

公开(公告)号：US20230168038A1

公开(公告)日：2023-06-01

申请号：US18057812

申请日：2022-11-22

Applicant: Danfoss A/S

Inventor： Yanxing LI ,  Leilei WANG ,  Jing YANG

IPC: F28D1/053 ,  F28F1/10 ,  F28F9/00

CPC classification number: F28D1/05366 ,  F28F1/10 ,  F28F9/001 ,  F28F2009/004

Abstract: The present disclosure discloses a heat exchanger and an air conditioning system having the heat exchanger. The heat exchanger includes a first heat exchanger core, a second heat exchanger core and a connection part. Heat exchange tubes of the first heat exchanger core and the second heat exchanger core include first circuit heat exchange tubes. A length of the heat exchange tube of the first heat exchanger core is greater than a length of the heat exchange tube of the second heat exchanger core. The connection part includes a first connection part through which the first circuit heat exchange tubes of the first heat exchanger core are connected with the first circuit heat exchange tubes of the second heat exchanger core. The heat exchange tubes of at least one of the first heat exchanger core and the second heat exchanger core further include second circuit heat exchange tubes. First circuit heat exchange tube groups each constituted by at least one of the first circuit heat exchange tubes and second circuit heat exchange tube groups each constituted by at least one of the second circuit heat exchange tubes are arranged alternately. Thereby, the heat exchange performance can be improved at both partial load and full load.