US 12,169,103 B2
Heat exchanger
Ryohei Sugimura, Kariya (JP); and Hiroshi Mieda, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Oct. 13, 2022, as Appl. No. 17/965,095.
Application 17/965,095 is a continuation of application No. PCT/JP2021/014338, filed on Apr. 2, 2021.
Claims priority of application No. 2020-074064 (JP), filed on Apr. 17, 2020.
Prior Publication US 2023/0029816 A1, Feb. 2, 2023
Int. Cl. F28F 1/10 (2006.01); F25B 39/04 (2006.01); F28D 21/00 (2006.01); F28F 9/02 (2006.01)
CPC F28F 9/0221 (2013.01) [F25B 39/04 (2013.01); F28D 21/00 (2013.01); F28D 2021/0084 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A heat exchanger for heat exchange between heat medium flowing inside the heat exchanger and air flowing outside the heat exchanger, the heat exchanger comprising a first heat-exchange portion and a second heat-exchange portion that are arranged facing each other in an air flow direction, and are connected to allow the heat medium to flow between the first heat-exchange portion and the second heat-exchange portion, wherein
the first heat-exchange portion includes a first core having a stacked structure of tubes through which the heat medium flows, and a first header tank connected to ends of the tubes of the first core and having an inflow portion through which the heat medium flows into the first heat-exchange portion,
the second heat-exchange portion includes a second core having a stacked structure of tubes through which the heat medium flows, and a second header tank connected to ends of the tubes of the second core and having an outflow portion through which the heat medium flows out of the second heat-exchange portion,
the first header tank allows a gas-phase heat medium to flow through the first header tank,
the second header tank allows a liquid-phase heat medium to flow through the second header tank,
the liquid-phase heat medium is lower in temperature than the gas-phase heat medium flowing through the first header tank,
the first header tank and the second header tank are connected to each other via a connecting portion,
the connecting portion has a slit passing through the connecting portion,
a tank longitudinal direction is defined as a direction parallel to both a central axis of the first header tank and a central axis of the second header tank,
the slit is one of slits arranged side by side in the connecting portion at a predetermined slit interval in the tank longitudinal direction, and
a length of each of the slits in the tank longitudinal direction is longer than a length of the slit interval in the tank longitudinal direction.