Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2023/190890
Kind Code:
A1
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).
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Inventors:
NAKANO HIROYUKI
Application Number:
PCT/JP2023/013217
Publication Date:
October 05, 2023
Filing Date:
March 30, 2023
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F28F19/06; F24F1/0067; F24F1/14; F28F1/32; F28F21/08; F28D1/053
Domestic Patent References:
| WO2019239990A1 | 2019-12-19 |
Foreign References:
| JP2020051731A | 2020-04-02 | |||
| JPH11211377A | 1999-08-06 | |||
| JP2016205744A | 2016-12-08 | |||
| JPS61143592A | 1986-07-01 |
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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