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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/159520
Kind Code:
Provided is a heat exchanger for refrigerator-freezer, enabling reduction in size of the heat exchanger when the heat exchange performance equivalent to the conventional one is required, and being capable of realizing improvement of heat exchange performance with the occupied volume equivalent to that of the conventional one when the heat exchange performance is required to be improved over the conventional one. The heat exchanger for refrigerator-freezer comprises a plurality of fin groups (2), each group consisting of a plurality of fins (20) arranged in a row and parallel to each other at a predetermined distance from each other. The plurality of fin groups (2) are arranged at predetermined intervals in an X direction which is the flow direction of fluid to be cooled, circulating in the refrigerator-freezer. The heat exchanger also comprises one or more metal pipes (3) which are arranged to sequentially pass through the fins (20) in the fin groups (2) and to have a serpentine form. The fin (20) is a plate made of aluminum or an aluminum alloy and having a rectangular shape with the short sides of 25 mm or less in length in the X direction. All of the shortest distances from the four corners (23) of the rectangle to the outer peripheral surface of the metal pipes (3) passing through the fins (20) are in the range of 12. 0-17. 5 mm.

UEDA Kaoru (1-7-2 Otemachi, Chiyoda-k, Tokyo 04, 〒1000004, JP)
SASAZAKI Mikine (1-7-2 Otemachi, Chiyoda-k, Tokyo 04, 〒1000004, JP)
OGIHARA Kana (1-7-2 Otemachi, Chiyoda-k, Tokyo 04, 〒1000004, JP)
Application Number:
Publication Date:
August 22, 2019
Filing Date:
December 13, 2018
Export Citation:
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UACJ CORPORATION (1-7-2, Otemachi Chiyoda-k, Tokyo 04, 〒1000004, JP)
International Classes:
F28F1/32; F25B1/00; F25B39/00; F28D1/047; F28F21/08
Attorney, Agent or Firm:
AICHI, TAKAHASHI, IWAKURA & ASSOCIATES (Meieki Nagata Building, 26-19 Meieki 3-chome, Nakamura-ku, Nagoya-sh, Aichi 02, 〒4500002, JP)
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