US 12,072,155 B2
Heat exchanger having cured edge
Akihito Aoki, Shizuoka (JP); Eiji Anzai, Shizuoka (JP); Yoshinari Ikeda, Matsumoto (JP); Hiromichi Gohara, Matsumoto (JP); Ryoichi Kato, Matsumoto (JP); Michihiro Inaba, Toyama (JP); and Tetsuya Sunago, Toyama (JP)
Assigned to NIPPON LIGHT METAL COMPANY, LTD., Tokyo (JP); FUJI ELECTRIC CO., LTD., Kanagawa (JP); and KOJIN CO., LTD., Toyama (JP)
Filed by NIPPON LIGHT METAL COMPANY, LTD., Tokyo (JP); FUJI ELECTRIC CO., LTD., Kanagawa (JP); and KOJIN CO., LTD., Toyama (JP)
Filed on Sep. 10, 2021, as Appl. No. 17/472,509.
Claims priority of application No. 2020-154798 (JP), filed on Sep. 15, 2020.
Prior Publication US 2022/0082341 A1, Mar. 17, 2022
Int. Cl. F28F 9/02 (2006.01); F28F 1/02 (2006.01); H01L 23/367 (2006.01)
CPC F28F 9/0246 (2013.01) [F28F 1/02 (2013.01); H01L 23/367 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A heat exchanger comprising:
a body made of a metal and having a flow passage for a heating medium, the flow passage extending through the body in a first direction; and
a first header including a first port as one of an inlet and an outlet that are connected to the flow passage, the first header covering a first end positioned on one side of the body in the first direction, wherein
the body has:
a front face extending in the first direction and a second direction intersecting the first direction;
a back face on a side opposite to the front face in a third direction intersecting both the first direction and the second direction;
a first side face that is on one side of the second direction, and is connected to a first edge of the front face and a first edge of the back face; and
a second side face that is on another side of the second direction, and is connected to a second edge of the front face and a second edge of the back face,
the first header is bonded to the body at a first bonding face being a part of the front face, at a second bonding face being a part of the back face, at a third bonding face being a part of the first side face, and at a fourth bonding face being a part of the second side face,
the third bonding face is a curved surface that protrudes in the second direction further than the first edge of the front face and the first edge of the back face,
the fourth bonding face is a curved surface that protrudes in the second direction further than the second edge of the front face and the second edge of the back face,
the flow passage has a first flow passage that extends through the body along the first direction and is disposed under the first side face such that the first side face overlaps the first flow passage in plan view,
the first flow passage has a cross-sectional shape consists of a single straight line and a single arch such that the single straight line extends between a first end and a second end of the single arch to form a semicircular shape, the single arch being continuously curved along an entire length of the single arch,
the first header includes:
a first portion opposed to a boarder portion of the body between the first bonding face and the first side face;
a second portion opposed to a boarder portion of the body between the first bonding face and the second side face;
a third portion opposed to a boarder portion of the body between the second bonding face and the first side face;
a fourth portion opposed to a boarder portion of the body between the second bonding face and the second side face; and
a fifth portion opposed to a portion of the body at a middle of the second side face in the third direction,
the first header is made of a resin containing fibers,
an alignment degree of the fibers in the first header is 0.60 or more such that 60% or more of the fibers in each of the first to fifth portions of the first header are aligned in a respective first same direction, and
a gate of the first header to pour the resin is opposed to a portion of the body at a middle of the first side face in the third direction.