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1. (WO2017039016) HEAT EXCHANGER

Pub. No.:    WO/2017/039016    International Application No.:    PCT/JP2016/076045
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Tue Sep 06 01:59:59 CEST 2016
IPC: F28D 1/047
F25B 39/00
F28F 1/02
Applicants: DAIKIN INDUSTRIES, LTD.
ダイキン工業株式会社
Inventors: NAKANO, Hiroyuki
中野 寛之
SASAI, Yasuhiro
笹井 泰弘
KUBO, Hiroharu
久保 博治
Title: HEAT EXCHANGER
Abstract:
Provided is a compact heat exchanger. This outdoor heat exchanger (400) is provided with a fin group (410) and a flat tube group (420). The flat tube group (420) includes a first flat tube (421) and a second flat tube (422). The first flat tube (421) is provided with: at least one first outward path section (421b); at least one first fold-back section (421c); and at least one first return path section (421d). The first outward path section (421b) is joined to a plurality of fins. The first fold-back section (421c) follows the first outward path section (421b), and is positioned outside the fin group (410). The first return path section (421d) follows the first fold-back section (421c), and is joined to the plurality of fins. The second flat tube (422) is provided with: at least one second outward path section (422b); at least one second fold-back section (422c); and at least one second return path section (422d). The second outward path section (422b) is joined to the plurality of fins. The second fold-back section (422c) follows the second outward path section (422b), and is positioned outside the first fold-back section (421c). The second return path section (422d) follows the second fold-back section (422c), and is joined to the plurality of fins.