Title:
HEAT EXCHANGER AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2020/095798
Kind Code:
A1
Abstract:
A tube opening (33) for inserting a heat transfer tube is formed in a fin (30) of a heat exchanger. In the fin (30), a collar portion (32) standing from an edge portion of the tube opening (33) is formed. An opening-end-side protruded piece (40a) and a closed-end-side protruded piece (40b) of the collar portion (32) come into contact with the adjacent fin (30) and hold a space between fin bodies (31). A longitudinal joint portion (50) of the collar portion (32) is shorter than the opening-end protruded piece (40a). The longitudinal joint portion (50) is joined to the heat transfer tube. The opening-end protruded piece (40a) is shorter than the longitudinal joint portion (50).
Inventors:
MATSUMOTO YOSHIYUKI (JP)
YOSHIOKA SHUN (JP)
YOSHIOKA SHUN (JP)
Application Number:
PCT/JP2019/042632
Publication Date:
May 14, 2020
Filing Date:
October 30, 2019
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F28F1/32; F28F1/02
Domestic Patent References:
| WO2013160951A1 | 2013-10-31 | |||
| WO2010049261A1 | 2010-05-06 | |||
| WO2018041138A1 | 2018-03-08 |
Foreign References:
| CN105823364A | 2016-08-03 | |||
| JPH0590173U | 1993-12-07 | |||
| US20140116667A1 | 2014-05-01 | |||
| CN106918261A | 2017-07-04 | |||
| FR1480185A | 1967-05-12 | |||
| JP2011064403A | 2011-03-31 | |||
| JP2017198440A | 2017-11-02 |
Other References:
See also references of EP 3862713A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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