Title:
HEAT EXCHANGER, METHOD FOR PRODUCING HEAT EXCHANGER, AND REFRIGERANT CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/235557
Kind Code:
A1
Abstract:
Provided are a heat exchanger which has a surface structure that makes it possible to effectively inhibit frosting in a frosting environment, and a refrigerant cycle device. Provided is a heat exchanger (23) having a portion in which the surface thereof is provided with a water-repellent coating, wherein the surface provided with the water-repellent coating has a surface structure including a plurality of projections (61), and all relations D/L<0.36, D/L>0.4×(L/H), H>700nm, 0>1.28×D×10-2+2.77×(L-D)×10-3-1.1×D2×10-5-5.3×(L-D)2×10-7-9.8×D×(L-D)×10-6-2.0, and 90°<θ<120° are satisfied, where L is the average pitch between the plurality of projections, D is the average diameter of the plurality of projections, H is the average height of the plurality of projections, and θ is the contact angle of water on the smooth plane of the water-repellent coating.
Inventors:
MONDARU DEBUKUMA-RU
NAGANO TOMOHIRO
FUJINO HIROKAZU
SATOU KEN
TOYOYAMA KIYOTAKA
UKAI TAKUYA
NAGANO TOMOHIRO
FUJINO HIROKAZU
SATOU KEN
TOYOYAMA KIYOTAKA
UKAI TAKUYA
Application Number:
PCT/JP2021/019480
Publication Date:
November 25, 2021
Filing Date:
May 21, 2021
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B39/02; F24F1/0067; F24F1/18; F28F1/32; F28F13/04; F28F13/18
Domestic Patent References:
| WO2016021367A1 | 2016-02-11 |
Foreign References:
| JP2018173265A | 2018-11-08 | |||
| JP2011122769A | 2011-06-23 | |||
| JP2019002587A | 2019-01-10 | |||
| JP2014214368A | 2014-11-17 | |||
| JP2017115219A | 2017-06-29 | |||
| JPH04178472A | 1992-06-25 | |||
| JP2017015377A | 2017-01-19 | |||
| JP2015183926A | 2015-10-22 | |||
| JP2018173265A | 2018-11-08 |
Other References:
See also references of EP 4145064A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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