Title:
AIR-CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/121623
Kind Code:
A1
Abstract:
The problem of the present invention is to provide an air-conditioning device that performs a heating operation by causing an indoor heat exchanger to function as a radiator of a coolant, wherein, even when liquid accumulation occurs in a state of operation in a low circulation amount zone, the air saturation temperature can be correctly detected. In the air-conditioning device (10), even when a compressor (12) is operated at a low number of compressor rotations so as to produce the minimum heating performance and the coolant circulation amount decreases, liquid accumulation does not occur above the height-direction center of an indoor heat exchanger (32) or above a distributor body (81a). Therefore, a coolant temperature sensor (183) attached to the aforementioned region is able to detect the accurate saturation temperature. This eliminates any risk of a breakdown in subcooling control, obviates control of motorized valve-opening action only for eliminating liquid accumulation as in the prior art, and, as shall be apparent, obviates having to provide a pressure sensor.
Inventors:
SUHARA RYOUTA
NOUCHI YOSHITERU
NOUCHI YOSHITERU
Application Number:
PCT/JP2016/051743
Publication Date:
August 04, 2016
Filing Date:
January 21, 2016
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B49/02; F24F11/02; F25B1/00; F25B13/00
Foreign References:
| JPH07127942A | 1995-05-19 | |||
| JP2000088362A | 2000-03-31 | |||
| JP2013137165A | 2013-07-11 |
Other References:
See also references of EP 3252401A4
Attorney, Agent or Firm:
Shinjyu Global IP (JP)
fresh green -- a global IP patent business corporation (JP)
fresh green -- a global IP patent business corporation (JP)
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