Title:
FAN DRIVE CIRCUIT FOR HEAT PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/183234
Kind Code:
A1
Abstract:
A fan drive circuit 1 for a heat pump device blows, from a blowout port using a fan, the air that has undergone heat exchange through a heat exchanger which uses a mildly-flammable or flammable refrigerant having a greater specific gravity than air. The fan drive circuit 1 is equipped with a forced operation circuit, which forces the fan into operation in the event that it cannot be detected whether a protection device for preventing leakage of the refrigerant from the heat pump device from reaching a combustible density is connected to the heat pump device.
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Inventors:
YAMAMOTO AKIYOSHI (JP)
MAEDA KAZUSHIGE (JP)
MAEDA KAZUSHIGE (JP)
Application Number:
PCT/JP2016/088355
Publication Date:
October 26, 2017
Filing Date:
December 22, 2016
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B49/02; F24F11/04; F25B1/00
Foreign References:
| JP2014126253A | 2014-07-07 | |||
| JPH06269280A | 1994-09-27 | |||
| JP2011121736A | 2011-06-23 | |||
| JP2008201213A | 2008-09-04 | |||
| JP2000146393A | 2000-05-26 | |||
| JP2012229863A | 2012-11-22 | |||
| JP2002005548A | 2002-01-09 |
Other References:
See also references of EP 3447406A4
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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