US 12,460,872 B2
Heat exchanger and method for processing heat exchanger
Feng Wang, Zhejiang (CN); Jianlong Jiang, Zhejiang (CN); and Qiang Gao, Zhejiang (CN)
Assigned to SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER CO., LTD., Zhejiang (CN)
Appl. No. 18/043,149
Filed by SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER CO., LTD., Zhejiang (CN)
PCT Filed Aug. 31, 2020, PCT No. PCT/CN2020/112685
§ 371(c)(1), (2) Date Feb. 27, 2023,
PCT Pub. No. WO2022/041250, PCT Pub. Date Mar. 3, 2022.
Prior Publication US 2023/0314085 A1, Oct. 5, 2023
Int. Cl. F28D 7/16 (2006.01); B23P 15/26 (2006.01); F28F 9/02 (2006.01)
CPC F28D 7/163 (2013.01) [B23P 15/26 (2013.01); F28F 9/02 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A heat exchanger, comprising:
a first header and a second header; and
a plurality of heat exchange tubes spaced apart along a length direction of the first header, the heat exchange tube communicating the first header with the second header, the heat exchange tube being flat, the heat exchange tube comprising a first face and a second face arranged along a thickness direction of the heat exchange tube, the heat exchange tube comprising a third face and a fourth face arranged along a width direction of the heat exchange tube, an intersection portion of the first face and the third face being a first side edge, the heat exchange tube comprising a first section, a bent section and a second section, a first end of the first section of the heat exchange tube being connected to a first end of the bent section, a second end of the first section being in communication with the first header, a first end of the second section of the heat exchange tube being connected to a second end of the bent section, a second end of the second section being in communication with the second header, a length direction of the first section and a length direction of the second section define an included angle therebetween, and adjacent bent sections in a thickness direction of the bent section being spaced apart;
wherein the bent section of the heat exchanger comprises a section to be bent before bending, the section to be bent comprises a protruding section and at least two transition sections, a first end of the protruding section is connected to a first end of one transition section, a second end of the one transition section is connected to the first end of the first section, a second end of the protruding section is connected to a first end of another transition section, and a second end of the other transition section is connected to the first end of the second section,
wherein a plane parallel to the length direction of the first header and parallel to the length direction of the first section, and also perpendicular to a width direction of the first section is defined as a first plane before the bent section is bent; in the first plane, a projection line of a first side edge of the protruding section of the heat exchange tube is not collinear with a projection line of a first side edge of the first section of the heat exchange tube, a minimum distance from the projection line of the first side edge of the protruding section of the heat exchange tube to the projection line of the first side edge of the first section of the heat exchange tube is H, and a minimum distance from the projection line of the first side edge of the first section of the heat exchange tube to the projection line of the first side edge of the first section of another adjacent heat exchange tube in the length direction of the first header is L, and H is greater than or equal to L.