US 12,151,280 B2
Heat exchanger and method for manufacturing heat exchanger
Masahiro Kato, Saitama (JP); Takashi Kaneda, Saitama (JP); and Fumihiro Kawashima, Saitama (JP)
Assigned to Marelli Corporation, Saitama (JP)
Appl. No. 17/772,648
Filed by Marelli Corporation, Saitama (JP)
PCT Filed Oct. 29, 2020, PCT No. PCT/JP2020/040678
§ 371(c)(1), (2) Date Apr. 28, 2022,
PCT Pub. No. WO2021/085548, PCT Pub. Date May 6, 2021.
Claims priority of application No. 2019-199113 (JP), filed on Oct. 31, 2019.
Prior Publication US 2023/0035116 A1, Feb. 2, 2023
Int. Cl. F28F 9/013 (2006.01); B21D 53/08 (2006.01); B23K 1/00 (2006.01); F28D 1/053 (2006.01); F28F 9/02 (2006.01)
CPC B21D 53/08 (2013.01) [B23K 1/0012 (2013.01); F28D 1/05316 (2013.01); F28F 9/013 (2013.01); F28F 9/0246 (2013.01); F28F 2225/04 (2013.01); F28F 2275/04 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A heat exchanger, comprising:
a plurality of flat tubes configured to form a medium flow path;
a plate attached to an end portion of each of the plurality of flat tubes, the plate having a plurality of insertion holes into which the plurality of flat tubes are inserted, the plurality of insertion holes having shapes the same as cross-sectional shapes of the plurality of flat tubes;
a medium tank configured to form a medium flow path by covering openings of the plurality of flat tubes inserted into the insertion holes; and
a reinforcing member configured to reinforce the openings, wherein
the plurality of flat tubes, the plate, the medium tank, and the reinforcing member are connected by a brazing material,
the reinforcing member includes at least a pair of leg portions and a connection portion that connects the leg portions, the leg portions being positioned on inner surfaces facing each other in a long axis direction of the openings, and a part of the leg portions being inserted into the openings so as to be in contact with the inner surfaces facing each other in a short axis direction of the openings, and
an insertion amount of the leg portions into the opening is larger than a sum of a gap between the connection portion and an inner surface of the medium tank and a length from the opening to a position corresponding to a brazed portion between the flat tube and the plate.