Title:
熱交換器及び空気調和機
Document Type and Number:
Japanese Patent JP7414951
Kind Code:
B2
Abstract:
A heat exchanger for an air conditioner for which a zeotropic refrigerant mixture is used is obtained, and the heat exchanger, when used as an evaporator, enables reduction of the amount of required refrigerant without deteriorating the heat transfer performance. The heat exchanger includes: a plurality of fins 11 stacked together at predetermined intervals therebetween; first heat transfer pipes 31 to 36 which extend through the plurality of fins 11, in which a heat medium flows, and which have a plurality of grooves in the inner surface of the pipes; and second heat transfer pipes 37, 38 extending through the plurality of fins 11, having one end connected to one end of the first heat transfer pipes 31 to 36 to form one heat medium flow path, being smaller in pipe diameter than the first heat transfer pipes 31 to 36, and having an inner surface shape providing a pressure loss per unit length smaller than that of the first heat transfer pipes 31 to 36.
Inventors:
Miki Sato
Takumi Nishiyama
Kenta Murata
Takumi Nishiyama
Kenta Murata
Application Number:
JP2022504883A
Publication Date:
January 16, 2024
Filing Date:
March 05, 2020
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F28F13/02; F25B1/00; F25B13/00; F25B39/00; F28F13/06
Domestic Patent References:
| JP8145593A | ||||
| JP6281293A | ||||
| JP2009257740A | ||||
| JP8075384A | ||||
| JP7113555A |
Foreign References:
| WO2015125525A1 |
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office