AIR CONDITIONING DEVICE - DAIKIN IND LTD

Title:

AIR CONDITIONING DEVICE

Document Type and Number:

WIPO Patent Application WO/2010/106817

Kind Code:

A1

Abstract:

An air conditioning device which can, even in heating a refrigerant on the suction side of a compression mechanism, perform control which takes into consideration the amount of heat added to the refrigerant, which is sucked into the compression mechanism, in the control of the degree of superheating of the refrigerant. An air conditioning device (1) for performing a refrigeration cycle by including at least a compressor (21), an indoor heat exchanger (41), an indoor fan (42), an outdoor electric expansion valve (24), and an outdoor heat exchanger (23). The air conditioning device (1) is provided with a coil (68), an electromagnetic induction thermister (14), and a control unit (11). The coil (68) generates a magnetic field for heating, by induction, a magnetic material pipe (F2) in order to heat a refrigerant flowing in an accumulator pipe (F). The electromagnetic induction thermister (14) detects the temperature of the magnetic material pipe (F2) which generates heat by induction heating by the coil (68). The control unit (11) performs control for increasing the degree of opening of the electric expansion valve (24) when the rising speed of the temperature detected by the electromagnetic induction thermister (14) is high.

Inventors:

KINOSHITA HIDEHIKO (JP)
YAMADA TSUYOSHI (JP)

Application Number:

PCT/JP2010/001994

Publication Date:

September 23, 2010

Filing Date:

March 19, 2010

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
KINOSHITA HIDEHIKO (JP)
YAMADA TSUYOSHI (JP)

International Classes:

F25B1/00; F25B13/00

Foreign References:

JP2007212035A	2007-08-23
JP2000220912A	2000-08-08
JP2002005537A	2002-01-09
JPH11248265A	1999-09-14
JPH07120083A	1995-05-12

Other References: