EP 3124678 B1 20180620 - METHOD OF OPERATION OF A HEAT PUMP DRYING AND/OR WASHING APPLIANCE AND HEAT PUMP DRYING AND/OR WASHING APPLIANCE
Title (en)
METHOD OF OPERATION OF A HEAT PUMP DRYING AND/OR WASHING APPLIANCE AND HEAT PUMP DRYING AND/OR WASHING APPLIANCE
Title (de)
VERFAHREN ZUM BETRIEB EINER WÄRMEPUMPENTROCKNUNGS- UND/ODER -WASCHVORRICHTUNG SOWIE WÄRMEPUMPENTROCKNUNGS- UND/ODER -WASCHVORRICHTUNG
Title (fr)
PROCÉDÉ DE FONCTIONNEMENT D'UN APPAREIL DE LAVAGE ET/OU DE SÉCHAGE DE POMPE À CHALEUR ET UN TEL APPAREIL DE LAVAGE OU DE SÉCHAGE
Publication
Application
Priority
EP 15178405 A 20150727
Abstract (en)
[origin: EP3124678A1] The present invention relates to method to operate a washing and/or drying appliance (1) including €¢ A treating chamber where items are introduced and treated with a process medium; €¢ a heat pump (30) system having a refrigerant circuit (38) in which a refrigerant can flow, said refrigerant circuit (38) including a first heat exchanger (31) where the refrigerant is cooled off, a second heat exchanger (32) where the refrigerant is heated up, a compressor (33) to pressurize and circulate the refrigerant through the refrigerant circuit, said compressor (33) including an electric motor, and a pressure-lowering device (34); said first and/or second heat exchanger being apt to perform heat exchange between said refrigerant flowing in said refrigerant circuit (38) and said process medium; said method comprising: €¢ storing a plurality (j) of data couples, a first element of each data couple being function of a maximum current value i MAXj for the compressor electric motor current, and the second element of the couple being a corresponding function of a compressor maximum temperature value T MAxj associated to the maximum current value i MAXj of the first element, said plurality of data couples delimiting a safety work space for said compressor; €¢ measuring substantially at the same time a temperature value T M representative of the temperature of said compressor and a current value i M representative of the current absorbed by said electric motor of said compressor while said heat pump is in operation; €¢ comparing said measured temperature value T M and said measured current value i M with said plurality of data couples; and €¢ cutting power supply to said compressor if: o there is a data couple (T MAXj* , i MAXj* ) in said plurality for which | T MAXj * - T M | = min j (| T M - T MAXj |) and i M ‰¥ i MAXj* or ˆ˜ there is a data couple (T MAXj* , i MAXj* ) in said plurality for which | i MAXj* - i M | = min j (| i M - i MAXj |) and T M ‰¥ T MAXj *.
IPC 8 full level
D06F 58/20 (2006.01); D06F 58/34 (2020.01)
CPC (source: CN EP US)
D06F 58/206 (2013.01 - CN EP US); D06F 25/00 (2013.01 - CN EP US); D06F 37/42 (2013.01 - CN EP US); D06F 58/34 (2020.02 - CN EP US); D06F 2103/44 (2020.02 - CN EP US); D06F 2103/50 (2020.02 - CN EP US); D06F 2105/26 (2020.02 - CN EP US)
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)
EP 3124678 A1 20170201; EP 3124678 B1 20180620; AU 2016204990 A1 20170216; AU 2016204990 B2 20210729; CN 106400430 A 20170215; CN 106400430 B 20200612
DOCDB simple family (application)
EP 15178405 A 20150727; AU 2016204990 A 20160715; CN 201610597792 A 20160726