Title:
EVAPORATOR AND REFRIGERATION CYCLE DEVICE EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2021/065913
Kind Code:
A1
Abstract:
The present invention provides an evaporator of a refrigeration cycle device in which a non-azeotropic mixed refrigerant is sealed, such that the frost resistance and heat exchange performance can be improved. If the notch opening side is upwind of the air flow, since the difference in temperature between the air and the evaporator surface can be increased, the heat exchange performance is improved but frost is easily formed. If the notch opening side is located downwind, the frost resistance is increased but the heat exchange performance is decreased. In particular, since the refrigerant used is a non-azeotropic mixed refrigerant, the temperature of the refrigerant tends to drop on the inlet side of the evaporator due to the temperature gradient, and frost is likely to occur. However, since a first heat exchange unit (23a) is formed with the notch opening side being located downwind in the air flow direction, the frost resistance can be increased by using at least the inlet side of the evaporator as the first heat exchange unit (23a).
Inventors:
KUMAKURA EIJI
IWATA IKUHIRO
YAMADA TAKURO
KAJI RYUHEI
HIROKAWA TOMOKI
IWATA IKUHIRO
YAMADA TAKURO
KAJI RYUHEI
HIROKAWA TOMOKI
Application Number:
PCT/JP2020/036920
Publication Date:
April 08, 2021
Filing Date:
September 29, 2020
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B39/02; F25B1/00; F28D5/00; F28F1/32
Domestic Patent References:
| WO2015136981A1 | 2015-09-17 | |||
| WO2017183180A1 | 2017-10-26 |
Foreign References:
| JP2001165586A | 2001-06-22 | |||
| JP2004218945A | 2004-08-05 | |||
| JP2019089084A | 2019-06-13 | |||
| JP2015216728A | 2015-12-03 | |||
| JP2019104814A | 2019-06-27 |
Other References:
See also references of EP 4040084A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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