Title:
REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/026115
Kind Code:
A1
Abstract:
A compressor control unit (83) controls an operation frequency (FQ) of a compressor (21a) so that the temperature of a refrigerant suctioned into the compressor (21a) in a cooling operation becomes a desired evaporation temperature (Te). A desired-temperature-setting unit (84): sets the desired evaporation temperature (Te) to a reference temperature (Teref) that is lower than an internal setting temperature (Tset) from when a cooling operation starts until a pull-down period (PD) for lowering an internal temperature (Tr) elapses; and corrects the desired evaporation temperature (Te) so that the desired evaporation temperature (Te) is higher than the reference temperature (Teref) when a frequency index value (FQi) depending on the operation frequency (FQ) of the compressor (21a) over a period when a usage-side unit (12) is in a cooling state is greater than a preset reference value (FQref) after the pull-down period (PD) has elapsed.
Inventors:
KITAO TAKUYA
UENO AKITOSHI
KITA KOUICHI
UENO AKITOSHI
KITA KOUICHI
Application Number:
PCT/JP2016/003624
Publication Date:
February 16, 2017
Filing Date:
August 05, 2016
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B1/00; F25D11/00
Domestic Patent References:
| WO2014103028A1 | 2014-07-03 |
Foreign References:
| JP2010175203A | 2010-08-12 | |||
| JP2007225155A | 2007-09-06 | |||
| JPH11304344A | 1999-11-05 | |||
| JP2008070015A | 2008-03-27 |
Other References:
See also references of EP 3333503A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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