Title:
空気調和機
Document Type and Number:
Japanese Patent JP7401803
Kind Code:
B2
Abstract:
An air conditioner (1) comprises: an outdoor machine (2) that includes a first heat exchanger (200); and an indoor machine (3) that includes a second heat exchanger (300). The first heat exchanger (200) has a first heat transfer pipe (210) and a plurality of first fins (220). The second heat exchanger (300) has a second heat transfer pipe (310) and a plurality of second fins (320). The first heat transfer pipe (210), the first fins (220), the second heat transfer pipe (310), and the second fins (320) are made of aluminum or an aluminum alloy. A first sacrificial layer (212) is provided on the surface of the first heat transfer pipe (210). The first sacrificial layer (212) has a less noble potential than a base material of the first heat transfer pipe (210), and has a more noble potential than the first fins (220). The zinc content of the first fins (220) is higher than that of the second fins (320).
Inventors:
Hiroyuki Nakano
Application Number:
JP2022060706A
Publication Date:
December 20, 2023
Filing Date:
March 31, 2022
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F28F19/06; F24F1/0067; F24F1/14; F28D1/053; F28F1/32; F28F19/00; F28F21/08
Domestic Patent References:
| JP2020051731A | ||||
| JP11211377A | ||||
| JP2016205744A | ||||
| JP61143592A |
Foreign References:
| WO2019239990A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Shinju Global IP