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Title:
METHOD FOR MANUFACTURING HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2018/062049
Kind Code:
A1
Abstract:
A method for manufacturing a heat exchanger according to the present invention can realize cost reduction and improved machinability. This method for manufacturing a heat exchanger (30) provided with a multi-hole pipe in which a plurality of through-holes through which a refrigerant passes are formed side by side comprises: a bending step; an arranging step; an assembling step; and a joining step. The bending step is for creating a plurality of bent multi-hole pipes (31-34) having different folding parts by forming the folding parts by bending the multi-hole pipes at bending positions. The arranging step is for arranging the plurality of bent multi-hole pipes (31-34) so that a folding part of one of the bent multi-hole pipes (31-34) is positioned inside or outside a folding part of another one of the bent multi-hole pipes (31-34). The assembling step is for assembling the arranged bent multi-hole pipes (31-34) and heat transfer fins (35). The joining step is for joining the bent multi-hole pipes (31-34) and the heat transfer fins (35) that have been assembled.

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Inventors:
NAKANO HIROYUKI
SASAI YASUHIRO
KUBO HIROHARU
ANDOU TOORU
Application Number:
PCT/JP2017/034365
Publication Date:
April 05, 2018
Filing Date:
September 22, 2017
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
F28D1/047; B21D53/06; F25B39/00; F28F1/02
Domestic Patent References:
WO2012040281A22012-03-29
Foreign References:
JP2000304472A2000-11-02
US5036909A1991-08-06
JPS5896986A1983-06-09
JPS4520924Y11970-08-21
JPS5168050U1976-05-29
JPS59163763U1984-11-02
JP2001129626A2001-05-15
JP2012200769A2012-10-22
JP2013019596A2013-01-31
JP2013252560A2013-12-19
JPS50136850U1975-11-11
JP2001272184A2001-10-05
EP0374895A21990-06-27
FR2754886A11998-04-24
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
Download PDF:
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