Title:
HEAT EXCHANGER AND AIR CONDITIONING DEVICE IN WHICH SAME IS USED
Document Type and Number:
WIPO Patent Application WO/2021/250743
Kind Code:
A1
Abstract:
A heat exchanger comprising a plurality of flat pipes that extend in a first direction and that are positioned so as to be lined up in a second direction at prescribed intervals and a header that extends in the second direction and that allows first-direction ends of adjacent flat pipes to communicate with each other. In a flow path formed inside the header, there are formed: partition parts that are positioned between each of the adjacent flat pipes and that obstruct at least part of the flow paths between the flat pipes; insertion parts that are formed so as to be sandwiched between adjacent partition parts, the flat pipes being respectively inserted into the insertion parts; a first communication path that allows one-end sides of adjacent insertion parts to communicate with each other; and a second communication path that allows other-end sides of the adjacent insertion parts to communicate with each other. The area of a cross-section of the first communication path perpendicular to the second direction is greater than the area of a cross-section of the second communication path perpendicular to the second direction. A first refrigerant inflow port that allows refrigerant to flow into the header and that is connected to the flow path is formed in the first communication path. This makes it possible to reduce loss of refrigerant pressure and to uniformize refrigerant distribution, whereby it is possible to improve heat exchanger performance.
Inventors:
MIYAWAKI KOSUKE (JP)
ONAKA YOJI (JP)
ONAKA YOJI (JP)
Application Number:
PCT/JP2020/022543
Publication Date:
December 16, 2021
Filing Date:
June 08, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F28D1/053; F28F1/02; F28F9/02; F28F9/26
Foreign References:
| KR20070115094A | 2007-12-05 | |||
| US4274482A | 1981-06-23 | |||
| JP2001074388A | 2001-03-23 | |||
| JP2019052784A | 2019-04-04 | |||
| JP2007183076A | 2007-07-19 | |||
| JP2007183076A | 2007-07-19 |
Other References:
See also references of EP 4163579A4
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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