EP 2620736 B1 20191023 - Heat exchanger and air-conditioning apparatus having the same
Title (en)
Heat exchanger and air-conditioning apparatus having the same
Title (de)
Wärmetauscher und Klimaanlagenvorrichtung damit
Title (fr)
Échangeur thermique et appareil de climatisation doté de celui-ci
Publication
Application
Priority
JP 2012014875 A 20120127
Abstract (en)
[origin: EP2620736A2] It is an objective to achieve suppressing progress of electrolytic corrosion (galvanic corrosion) by aluminum or an aluminum alloy caused by diffusion of copper ions to a connection pipe formed of aluminum or an aluminum alloy. The copper ions are diffused through water having condensed and staying in a small gap between the thermally insulating material and the connection pipe. In a gas pipe 30 and a liquid pipe 40 of a connection pipe unit 20, connection portions 37 and 47, in which aluminum pipes 31 and 41 (first refrigerant pipes: refrigerant pipes formed of aluminum or an aluminum alloy) and copper pipes 32 and 42 (second refrigerant pipes: refrigerant pipes formed of copper or a copper alloy) are respectively connected to each other, are disposed in fall portions of the aluminum pipes 31 and 41. The connection pipe unit 20 is covered with a thermally insulating material 60. An anti-corrosion treatment is applied to the aluminum pipes 31 and 41 covered with the thermally insulating material 60.
IPC 8 full level
F28F 9/02 (2006.01); F24F 1/0071 (2019.01); F24F 13/30 (2006.01); F28F 19/00 (2006.01); F28F 19/02 (2006.01); F28F 21/08 (2006.01)
CPC (source: EP US)
F24F 1/0068 (2019.01 - EP); F24F 1/0071 (2019.01 - EP US); F28F 9/0256 (2013.01 - EP); F28F 19/00 (2013.01 - EP); F28F 19/02 (2013.01 - EP); F28F 21/081 (2013.01 - EP); F24F 1/0057 (2019.01 - EP); F24F 13/30 (2013.01 - EP); F28D 2021/0068 (2013.01 - EP); F28F 21/084 (2013.01 - EP); F28F 21/085 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2620736 A2 20130731; EP 2620736 A3 20180314; EP 2620736 B1 20191023; CN 103225847 A 20130731; ES 2756774 T3 20200427; JP 2013155892 A 20130815; JP 5881435 B2 20160309; MY 166580 A 20180717; RU 2509969 C1 20140320; SG 192323 A1 20130830
DOCDB simple family (application)
EP 12182717 A 20120903; CN 201210351648 A 20120920; ES 12182717 T 20120903; JP 2012014875 A 20120127; MY PI2012004114 A 20120918; RU 2012140170 A 20120919; SG 2012064432 A 20120830