Title:
HEAT EXCHANGER AND AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2023122111
Kind Code:
A
Abstract:
To provide a heat exchanger which suppresses generation of a drift current in a heat transfer pipe, and to provide an air conditioner.SOLUTION: An outdoor heat exchanger includes a plurality of flat tubes and a cylindrical liquid header. In the liquid header, a refrigerant flow passage connected to the plurality of flat tubes is formed. The refrigerant flow passage includes a rise space 34z and a falling space. The rise space 34z extends to the upper end side of the liquid header along the longer direction of the liquid header from an inflow port 34e where a refrigerant flows in. In the falling space, a going flow passage 35z which communicates with an end part on the opposite side from the inflow port 34e of the rise space 34z is formed, and the falling space extends to the lower end side of the liquid header along the longer direction of the liquid header from the going flow passage 35z. The plurality of flat tubes are connected to the rise space 34z. In the rise space 34z, a flow passage cross sectional area A in a first position P1 is different from a flow passage cross sectional area in a second position P2 which is separated from the first position P1 to the upper end side of the liquid header by a predetermined distance.SELECTED DRAWING: Figure 14
Inventors:
ZHENG CHEN
HIROKAWA TOMOKI
ANDO TORU
UCHIDA KENGO
OKUNO FUMI
SATO TAKESHI
HIROKAWA TOMOKI
ANDO TORU
UCHIDA KENGO
OKUNO FUMI
SATO TAKESHI
Application Number:
JP2022025561A
Publication Date:
September 01, 2023
Filing Date:
February 22, 2022
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F28F9/02; F24F1/18; F25B1/00; F28D1/053
Attorney, Agent or Firm:
Patent Attorney Corporation Shinju Global IP