Title:
HEAT EXCHANGER AND MANUFACTURING METHOD OF FIN
Document Type and Number:
Japanese Patent JP2017150756
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a heat exchanger capable of suppressing frosting on a fin surface of the heat exchanger, and to provide a manufacturing method of a fin.SOLUTION: A heat exchanger includes a heat transfer pipe in which a refrigerant circulates and a fin coming into contact with the heat transfer pipe, and air is blown to the surface of the fin. The fin includes a fin body having grooves on the surface, it includes a water-repellent film on the surface of the grooves, and also, it includes a hygroscopic polymer which is swollen with an antifreeze liquid at a bottom of the grooves. For example, the groove is a V-shaped groove. Also, in the V-shaped groove, a pitch is larger than 0 μm and equal to or smaller than 10 μm, and also, an apex angle is larger than 0 degree and equal to or smaller than 45 degrees. Also, PDMS is used as the hygroscopic polymer.SELECTED DRAWING: Figure 1
Inventors:
WADA NORIHIKO
Application Number:
JP2016034355A
Publication Date:
August 31, 2017
Filing Date:
February 25, 2016
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
F28F13/18; F25B39/02; F28D1/047; F28F1/32; F28F17/00; F28F19/00; F28F19/04
Attorney, Agent or Firm:
Koichi Washida
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