US 11,892,251 B2
Heat exchanger
Zhaogang Qi, Hangzhou (CN); Linjie Huang, East Amherst, NY (US); Qiang Gao, Hangzhou (CN); Jianlong Jiang, Hangzhou (CN); Yujiao Niu, Hangzhou (CN); and Chunyu Shao, Hangzhou (CN)
Assigned to HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD., Hangzhou (CN)
Filed by HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD., Hangzhou (CN)
Filed on May 25, 2021, as Appl. No. 17/329,142.
Application 17/329,142 is a continuation of application No. PCT/CN2019/109050, filed on Sep. 29, 2019.
Claims priority of application No. 201811155651.2 (CN), filed on Sep. 30, 2018; and application No. 201811155652.7 (CN), filed on Sep. 30, 2018.
Prior Publication US 2021/0278148 A1, Sep. 9, 2021
Int. Cl. F28F 9/02 (2006.01); F28F 1/12 (2006.01)
CPC F28F 9/0217 (2013.01) [F28F 9/0253 (2013.01); F28F 9/0256 (2013.01); F28F 1/126 (2013.01); F28F 2275/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heat exchanger, comprising:
a collecting pipe having a pipe wall and an inner cavity;
a baffle disposed in the inner cavity of the collecting pipe, the baffle extending along a length direction of the collecting pipe, the inner cavity of the collecting pipe being divided by the baffle into a first cavity and a second cavity, the baffle defining a plurality of slots extending through the baffle along a thickness direction of the baffle, the baffle comprising a first surface exposed to the first cavity and a second surface exposed to the second cavity, the first surface and the second surface being opposite to each other; and
a plurality of heat exchange tubes disposed along the length direction of the collecting pipe, each of the heat exchange tubes having a first end and an inner channel;
wherein the pipe wall of the collecting pipe defines a plurality of insertion holes which are disposed along the length direction of the collecting pipe; the plurality of slots and the plurality of insertion holes are disposed in a one-to-one correspondence manner; the first end of each heat exchange tube is inserted into a corresponding slot of the baffle, without protruding beyond the second surface of the baffle, through a corresponding insertion hole and the first cavity in sequence, so that the inner channel of each heat exchange tube is in communication with the second cavity via the corresponding slot;
the baffle comprises a plurality of flanges extending in a direction from the second cavity toward the first cavity and protruding beyond the first surface, each flange is surrounded around the corresponding slot, and each heat exchange tube is fastened to the flange.