Title (en)

AIR CONDITIONER DEVICE

Title (de)

KLIMAANLAGE

Title (fr)

DISPOSITIF DE CONDITIONNEMENT D'AIR

Publication

EP 2669607 A4 20170426 (EN)

Application

EP 11856852 A 20110126

Priority

JP 2011000411 W 20110126

Abstract (en)

[origin: US2013233006A1] An air-conditioning apparatus that includes a refrigeration cycle in which a compressor, a heat-source side heat exchanger, an expansion unit, and a load-side heat exchanger are included and are connected with refrigerant pipes, includes cutoff units capable of flowing or cut off a refrigerant circulating in the refrigeration cycle; a detection unit detecting leaking of the refrigerant on the basis of a resistance that changes with densities of plural kinds of leaked refrigerants; a concentration calculation unit calculating a concentration of a refrigerant that has leaked, on the basis of the resistance of the detection unit; a concentration detection unit outputting a calculation result of the concentration calculation unit in order that the calculation result is used for controlling the cutoff units; and a cutoff control unit controlling the cutoff units on the basis of an output of the concentration detection unit.

IPC 8 full level

F25B 13/00 (2006.01); F25B 25/00 (2006.01); F25B 49/00 (2006.01); F25B 49/02 (2006.01)

CPC (source: EP US)

F25B 9/008 (2013.01 - US); F25B 49/005 (2013.01 - EP US); F25B 13/00 (2013.01 - EP US); F25B 25/005 (2013.01 - EP US); F25B 2313/0231 (2013.01 - EP US); F25B 2313/0272 (2013.01 - EP US); F25B 2313/02732 (2013.01 - EP US); F25B 2500/222 (2013.01 - EP US); F25B 2600/2519 (2013.01 - EP US)

Citation (search report)

• [XYI] EP 1475588 A1 20041110 - TOSHIBA KK [JP]
• [Y] JP H05118720 A 19930514 - HITACHI LTD
• [Y] JP 2002195718 A 20020710 - NAKANO REITOKI SEISAKUSHO
• [Y] US 2002178738 A1 20021205 - TAIRA SHIGEHARU [JP], et al
• [Y] EP 0022369 A1 19810114 - MATSUSHITA ELECTRIC IND CO LTD [JP]
• See references of WO 2012101673A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

US 2013233006 A1 20130912; EP 2669607 A1 20131204; EP 2669607 A4 20170426; EP 2669607 B1 20200415; JP 5642202 B2 20141217; JP WO2012101673 A1 20140630; WO 2012101673 A1 20120802

DOCDB simple family (application)

US 201113882779 A 20110126; EP 11856852 A 20110126; JP 2011000411 W 20110126; JP 2012554479 A 20110126