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Title:
HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2017/183361
Kind Code:
A1
Abstract:
Provided is a high quality heat exchanger which can secure fin pitch and suppress an increase in ventilation resistance and a deterioration in drainage of condensation water in a heat exchanger in which a flat tube is inserted in a cutout of a heat transfer fin. A plurality of heat transfer fins (31) have a plurality of cutouts (35), into which a plurality of flat tubes are to be inserted, formed in the heat transfer fins (31) along the width direction of the flat tubes. The plurality of heat transfer fins (31) have three raised sections (61, 62, 62) which are provided in the periphery section of each of the cutouts (35) to form a gap between a transfer fin (31) and an adjacent transfer fin (31). The three raised sections (61, 62, 63) are disposed so as not to face each other across a reference line RL that passes through the center of the flat tube and extends in the width direction thereof.

Inventors:
YOSHIOKA SHUN
MATSUMOTO YOSHIYUKI
INOUE SATOSHI
HAMADATE JUNICHI
Application Number:
JP2017/010162
Publication Date:
October 26, 2017
Filing Date:
March 14, 2017
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
F28F1/32; F25B39/00; F28F1/02
Domestic Patent References:
WO2016038652A12016-03-17
Foreign References:
JPH1078295A1998-03-24
JPH09310993A1997-12-02
JPH0493594A1992-03-26
JP2014074513A2014-04-24
JP2013245884A2013-12-09
Other References:
See also references of EP 3447430A4
Attorney, Agent or Firm:
Shinjyu Global IP (JP)
fresh green -- a global IP patent business corporation (JP)
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