Title:
HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2020/250167
Kind Code:
A1
Abstract:
[Problem] To improve the corrosion-resistance properties of a heat exchanger. [Solution] A heat exchanger comprises multiple fins and a heat-transfer pipe 30. The multiple fins each have a hole formed therein. The heat-transfer pipe 30 passes through the holes in the multiple fins and is integrated with the fins. The fins each have a substrate 20 and an organic substance layer 25. The substrate 20 is made from aluminum or an aluminum alloy, has a hole formed therein, and has a fin collar 16 that extends from the peripheral edge of the hole in the longitudinal direction of the heat-transfer pipe 30. The organic substance layer 25 is disposed at least on an end surface 16a of the fin collar 16. The film thickness of the organic substance layer on the end surface 16a of the fin collar is 10 to 250 μm.
Inventors:
UCHIYAMA KIMIHIRO (JP)
SAO TADASHI (JP)
SAO TADASHI (JP)
Application Number:
PCT/IB2020/055481
Publication Date:
December 17, 2020
Filing Date:
June 11, 2020
Export Citation:
Assignee:
DAIKIN IND THAILAND LTD (TH)
International Classes:
F28F1/32; F28F19/04; F28F21/08
Domestic Patent References:
| WO2008088217A2 | 2008-07-24 |
Foreign References:
| JP2013100933A | 2013-05-23 | |||
| JP2008014571A | 2008-01-24 | |||
| JP2005098666A | 2005-04-14 | |||
| JP2010223514A | 2010-10-07 |
Attorney, Agent or Firm:
TILLEKE & GIBBINS INTERNATIONAL LIMITED (TH)
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