Title:
HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2021/169532
Kind Code:
A1
Abstract:
A heat exchanger, comprising flat tubes. Each flat tube is provided with a refrigerant cavity, an inlet, an outlet and two through holes, wherein the inlet and the outlet are located at two ends of the refrigerant cavity respectively, and both the inlet and the outlet are in communication with the refrigerant cavity; and the two through holes are located at two ends of the refrigerant cavity respectively, and neither of the two through holes is in communication with the refrigerant cavity. Since each flat tube is provided with the inlet, the outlet and the two through holes, when a plurality of flat tubes cooperate with a liquid header (a liquid intake pipe or a liquid output pipe) of the heat exchanger, different flat tubes can choose to use the inlets or the outlets to be in communication with the liquid header, and can choose to use the through holes to avoid the liquid header, such that different parts in the heat exchanger can be easily arranged and assembled, thereby realizing two passes. Compared with the prior art, there is no need to provide structures such as a complex isolation component, thereby simplifying the structure of the heat exchanger and facilitating the manufacturing and assembly thereof.
Inventors:
WEI WENJIAN (CN)
MA WENYONG (CN)
MA WENYONG (CN)
Application Number:
PCT/CN2020/138147
Publication Date:
September 02, 2021
Filing Date:
December 21, 2020
Export Citation:
Assignee:
ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)
International Classes:
F28F1/02; F28F1/34; F28F9/18; F28F11/00
Domestic Patent References:
| WO2012169688A1 | 2012-12-13 |
Foreign References:
| CN211717240U | 2020-10-20 | |||
| CN109539852A | 2019-03-29 | |||
| CN205245622U | 2016-05-18 | |||
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| CN101782295A | 2010-07-21 | |||
| CN204535515U | 2015-08-05 | |||
| CN110030846A | 2019-07-19 | |||
| CN109668353A | 2019-04-23 | |||
| DE3215961A1 | 1983-11-03 | |||
| EP1167911A2 | 2002-01-02 | |||
| JPH1078269A | 1998-03-24 | |||
| US6397627B1 | 2002-06-04 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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