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Title:
HEAT EXCHANGER AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/053319
Kind Code:
A1
Abstract:
This heat exchanger comprises: a plurality of fins that are spaced apart from each other in a first direction; and a plurality of heat exchanger tubes that penetrate the plurality of fins and are spaced apart from each other in a second direction that intersects the first direction. Each of the plurality of fins has a flat fin base surface and a plurality of fin protrusions. The plurality of fin protrusions have: an inner fin protrusion that is provided so as to surround each of the plurality of heat exchanger tubes and protrudes in the first direction from the fin base surface; and an outer fin protrusion that is provided so as to surround each of the inner fin protrusions and protrudes in the first direction from the fin base surface.

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Inventors:
YATSUYANAGI AKIRA (JP)
MAEDA TSUYOSHI (JP)
YANACHI SATORU (JP)
Application Number:
PCT/JP2021/036077
Publication Date:
April 06, 2023
Filing Date:
September 30, 2021
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B39/00; F28D1/047; F28F1/32
Foreign References:
JPS61235693A1986-10-20
CN104596343A2015-05-06
CN106931538A2017-07-07
US20100155041A12010-06-24
US20140262156A12014-09-18
EP2975350A12016-01-20
CN101963472A2011-02-02
CN110726325A2020-01-24
JPS58158496A1983-09-20
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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