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Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/088482
Kind Code:
A1
Abstract:
An air conditioning device, comprising: a refrigeration cycle circuit configured by one or a plurality of intermediate heat exchangers (15) connected by pipes, said intermediate heat exchangers exchanging heat between a heat-source side refrigerant and a heating medium differing from the heat-source side refrigerant; a heating medium circulation circuit configured by connecting, by pipes, one or a plurality of pumps (21) for circulating the heating medium for the heat exchange by the intermediate heat exchangers (15), a usage-side heat exchanger (26) that exchanges heat between the heating medium and air for the space to be air conditioned, and flow path switching valves (22, 23) that switch between passage through the usage-side heat exchanger (26) of the heated heating medium or the cooled heating medium; a ninth temperature sensor (40) that detects external air temperature; and a control device (60) that performs control such that the pumps (21) are started and the heating medium inside the heating medium circulation circuit is circulated, once a determination has been made that the temperature detected by the ninth temperature sensor (40) is no more than a first prescribed temperature or that a first prescribed time has passed since the pumps (21) have stopped, when air conditioning operation has stopped.

Inventors:
MORIMOTO OSAMU (JP)
SHIMAMOTO DAISUKE (JP)
AZUMA KOJI (JP)
HONDA TAKAYOSHI (JP)
Application Number:
PCT/JP2011/007041
Publication Date:
June 20, 2013
Filing Date:
December 16, 2011
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MORIMOTO OSAMU (JP)
SHIMAMOTO DAISUKE (JP)
AZUMA KOJI (JP)
HONDA TAKAYOSHI (JP)
International Classes:
F25B1/00; F24F11/02; F24F11/76
Domestic Patent References:
WO2011099054A12011-08-18
WO2010049998A12010-05-06
Foreign References:
JP2006112781A2006-04-27
JP2002048399A2002-02-15
JP2000186868A2000-07-04
JP2009236392A2009-10-15
JP2003222391A2003-08-08
Other References:
See also references of EP 2792969A4
Attorney, Agent or Firm:
KOBAYASHI, Hisao et al. (JP)
Hisao Kobayashi (JP)
Download PDF:
Claims: