Title:
REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/073577
Kind Code:
A1
Abstract:
Provided is a refrigeration device in which it is easy to ensure heating capability and suppress noise generated at the time of returning to heating operation. This air conditioner (1), which is a refrigeration device, comprises, in a refrigerant circuit (10): a compressor (11); an outdoor heat exchanger (13) that functions as an evaporator during heating operation; an indoor heat exchanger (16) that functions as a condenser during heating operation; and a four-way switching valve (12). The refrigerant circuit (10) is configured such that the high-pressure value of the refrigerant circuit (10) during defrosting operation is lower than the high-pressure value of the refrigerant circuit (10) during heating operation. The compressor (11) is set such that the defrosting-end-time frequency reduction rate, which is the rate of reduction in the operation frequency of the compressor (11) during defrosting operation, is higher than the normal frequency reduction rate, which is the rate of reduction in the operation frequency of the compressor (11) during heating operation.
Inventors:
NAKATA TAKAHIRO
ITOU HIROSHI
ITOU HIROSHI
Application Number:
PCT/JP2016/081631
Publication Date:
May 04, 2017
Filing Date:
October 25, 2016
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B47/02; F24F11/02
Foreign References:
| JP2008256264A | 2008-10-23 | |||
| JPH05346256A | 1993-12-27 | |||
| JPS6069446A | 1985-04-20 | |||
| JP2014129957A | 2014-07-10 |
Other References:
See also references of EP 3370021A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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