Title:
BRAZING STRUCTURE FOR FLAT TUBE AND HEADER PLATE OF HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2021/054484
Kind Code:
A1
Abstract:
The present invention reduces and mitigates thermal stress generated at joint portions between a header plate and a flat tube of a heat exchanger. In a direction of a vertical center axis 6 passing the center of the inside of a flat tube 3, positions of first brazing parts 10 are set to be closer to the center of the flat tube 3 in the direction of the vertical center axis 6 than positions of edge brazing parts 8. Accordingly, the thermal stress concentrated at the joint portions between short sides of the flat tube 3 and the header plate is dispersed to other portions.
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Inventors:
KOMURO AKIRA (JP)
SAKAI TAIJI (JP)
OKUBO ATSUSHI (JP)
SAKAI TAIJI (JP)
OKUBO ATSUSHI (JP)
Application Number:
PCT/JP2020/037043
Publication Date:
March 25, 2021
Filing Date:
September 18, 2020
Export Citation:
Assignee:
T RAD CO LTD (JP)
International Classes:
B23K1/00; F28D1/053; F28F1/02; F28F9/02
Domestic Patent References:
| WO2018124254A1 | 2018-07-05 | |||
| WO2008071362A1 | 2008-06-19 |
Foreign References:
| JP2017531149A | 2017-10-19 | |||
| JP2006189206A | 2006-07-20 | |||
| JP2007205585A | 2007-08-16 | |||
| US20160341494A1 | 2016-11-24 | |||
| JP2009204216A | 2009-09-10 | |||
| JPH11132688A | 1999-05-21 | |||
| DE102006057851A1 | 2008-06-12 | |||
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| DE102015205605A1 | 2016-09-29 |
Attorney, Agent or Firm:
KUBOTA, Takubi (JP)
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