Global Patent Index - EP 3252211 A1

EP 3252211 A1 20171206 - METHOD FOR CONTROLLING A HEAT PUMP LAUNDRY DRYING MACHINE

Title (en)

METHOD FOR CONTROLLING A HEAT PUMP LAUNDRY DRYING MACHINE

Title (de)

VERFAHREN ZUR STEUERUNG EINES WÄRMEPUMPENWÄSCHETROCKNERS

Title (fr)

PROCÉDÉ POUR COMMANDER UNE MACHINE DE SÉCHAGE DE LINGE DE POMPE À CHALEUR

Publication

EP 3252211 A1 20171206 (EN)

Application

EP 16172901 A 20160603

Priority

EP 16172901 A 20160603

Abstract (en)

The invention relates to a method for controlling a heat pump laundry drying machine (2), wherein the heat pump laundry drying machine includes: - a rotatable drum (16) where textile is introduced and treated with a process air (A), said drum being apt to be driven in two rotation directions; - a heat pump system (44) having a refrigerant circuit (40) in which a refrigerant can flow, said refrigerant circuit including a first heat exchanger (32) where the refrigerant is cooled off, a second heat exchanger (34) where the refrigerant is heated up, a compressor (36) to pressurize and circulate the refrigerant through the refrigerant circuit (40); said first and/or second heat exchanger being apt to perform heat exchange between said refrigerant flowing in said refrigerant circuit and said process air; - a selector adapted to select alternatively at least an outdoor drying cycle for drying outdoor textiles which have a water repellent layer and/or a waterproof and breathable thin film material with a micro-porous structure, and at least an additional drying cycle for drying other types of textiles, wherein the outdoor drying cycle includes an outdoor main drying phase having settings for a frequency of reversion of rotations of the drum and for the heat pump operation and the additional drying cycle comprises an additional main drying phase having settings for a frequency of reversion of rotations of the drum and for the heat pump operation; wherein the method comprises: - selecting and starting the outdoor drying cycle, and entering the outdoor main drying phase, wherein the outdoor main drying phase includes an outdoor first sub-phase (S2) and an outdoor second sub-phase (S3); - starting the outdoor first sub-phase; - reversing the rotation of the drum (16) in the outdoor first sub-phase at a frequency (F1) lower than a frequency in the additional main drying phase; - entering the outdoor second sub-phase when the humidity of said outdoor textile is equal or below a first threshold; €¢ in the second sub-phase, decreasing a flow rate of the process air in the drum with respect to a flow rate in the outdoor first sub-phase and with respect to a flow rate in the additional main drying phase.

IPC 8 full level

D06F 58/20 (2006.01); D06F 58/28 (2006.01); D06F 58/38 (2020.01)

CPC (source: EP US)

D06F 58/38 (2020.02 - EP US); D06F 2101/02 (2020.02 - EP US); D06F 2103/08 (2020.02 - EP US); D06F 2103/10 (2020.02 - EP US); D06F 2103/32 (2020.02 - EP US); D06F 2103/36 (2020.02 - EP US); D06F 2103/50 (2020.02 - EP US); D06F 2103/58 (2020.02 - EP US); D06F 2105/24 (2020.02 - EP US); D06F 2105/26 (2020.02 - EP US); D06F 2105/30 (2020.02 - EP US); D06F 2105/32 (2020.02 - EP US); D06F 2105/46 (2020.02 - EP US); D06F 2105/48 (2020.02 - EP US); D06F 2105/52 (2020.02 - EP US)

Citation (applicant)

EP 2622120 A2 20130807 - BSH BOSCH SIEMENS HAUSGERAETE [DE]

Citation (search report)

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

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3252211 A1 20171206; EP 3252211 B1 20190515; AU 2017203647 A1 20171221; AU 2017203647 B2 20230209

DOCDB simple family (application)

EP 16172901 A 20160603; AU 2017203647 A 20170531