US 9,810,459 B2
Heat exchanger and air conditioning system having an allocation tube within heat exchanger manifold
Ke-Li Ye, Hangzhou (CN)
Assigned to HANGZHOU SANHUA RESEARCH INSTITUTE CO., LTD., Hangzhou, Zhejiang Province (CN)
Filed by Hangzhou Sanhua Research Institute Co.,Ltd., Hangzhou, Zhejiang Province (CN)
Filed on Sep. 23, 2015, as Appl. No. 14/863,299.
Claims priority of application No. 2014 1 0490845 (CN), filed on Sep. 23, 2014.
Prior Publication US 2016/0084581 A1, Mar. 24, 2016
Int. Cl. F25B 41/04 (2006.01); F25B 6/04 (2006.01); F25B 39/04 (2006.01); F28F 9/02 (2006.01); F25B 1/00 (2006.01); F25B 39/02 (2006.01); F28D 21/00 (2006.01); F25B 5/04 (2006.01)
CPC F25B 41/046 (2013.01) [F25B 6/04 (2013.01); F28F 9/0273 (2013.01); F25B 1/00 (2013.01); F25B 5/04 (2013.01); F25B 39/028 (2013.01); F25B 39/04 (2013.01); F25B 2341/0662 (2013.01); F25B 2400/0409 (2013.01); F25B 2400/0411 (2013.01); F28D 2021/0084 (2013.01); F28D 2021/0085 (2013.01); F28F 9/0231 (2013.01); F28F 9/0246 (2013.01); F28F 9/0275 (2013.01); F28F 2250/00 (2013.01); F28F 2250/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A heat exchanger, comprising:
a first manifold, a second manifold, a plurality of flat tubes between the first manifold and the second manifold, and a plurality of fins arranged between each two adjacent flat tubes, the first manifold and the second manifold respectively comprising a plurality of connecting ports for communicating with the flat tubes, two ends of each of the flat tubes being inserted into the connecting ports of the first manifold and the connecting ports of the second manifold, each of the flat tubes communicating with the first manifold and the second manifold, the two ends of the first manifold being respectively sealed with a cap, the heat exchanger further comprising an allocation tube having a plurality of allocation holes in the first manifold, and the allocation tube communicating with the first manifold via the allocation holes; and
wherein the allocation tube being inserted into the first manifold through the cap located at one end of the first manifold, a second opening being configured on a tube wall of the first manifold, the heat exchanger further comprising a first connecting pipe, a second connecting pipe, and a third connecting pipe, the first connecting pipe communicating with the first manifold via the second opening, the second connecting pipe communicating with the allocation tube, and the third connecting pipe communicating with the second manifold, and a first flow area of a connecting point jointing between the first connecting pipe and the second opening is larger than a second flow area of the allocation tube; and
wherein the allocation tube is located between the second opening and an end portion of the flat tubes being inserted into the first manifold, a connecting line between a center of the second opening and a center of the flat tube passes through at least a portion of the tube wall of the allocation tube; and the second opening and an external wall of the allocation tube are spaced apart at a certain distance, the first connecting pipe is disposed on an external surface of the first manifold, and the second opening, the end portion of the flat tubes being inserted into the first manifold are spaced apart from the external wall of the allocation tube.