EP2312049A1 - Wäschetrockner mit Wärmepumpensystem - Google Patents

Wäschetrockner mit Wärmepumpensystem Download PDF

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Publication number
EP2312049A1
EP2312049A1 EP09013025A EP09013025A EP2312049A1 EP 2312049 A1 EP2312049 A1 EP 2312049A1 EP 09013025 A EP09013025 A EP 09013025A EP 09013025 A EP09013025 A EP 09013025A EP 2312049 A1 EP2312049 A1 EP 2312049A1
Authority
EP
European Patent Office
Prior art keywords
air stream
circuit
tumble dryer
heat exchanger
dryer according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09013025A
Other languages
English (en)
French (fr)
Other versions
EP2312049B1 (de
Inventor
Luciano Sartor
Sergio Pillot
Flavio Noviello
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP09013025.3A priority Critical patent/EP2312049B1/de
Publication of EP2312049A1 publication Critical patent/EP2312049A1/de
Application granted granted Critical
Publication of EP2312049B1 publication Critical patent/EP2312049B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements

Definitions

  • DE 10 2005 041 145 A1 discloses a tumble dryer with a heat pump system.
  • the refrigerant circuit of said heat pump system includes a compressor with a variable power output.
  • the variable power output of the compressor allows an efficient use of energy.
  • DE 31 13 417 A1 discloses a tumble dryer with a heat pump system.
  • An additional electric heater is arranged within the air stream circuit in order to improve the heating-up phase.
  • EP 1 884 586 A2 discloses a tumble dryer with a heat pump system including a supplementary condenser.
  • the supplementary condenser is located outside of the air stream circuit.
  • the supplementary condenser is arranged between the proper condenser and the expansion valve. At this position the temperature is very high, so that the efficiency of the supplementary condenser is improved.
  • the temperature gradient between the evaporator and condenser increases, so that more moisture can be removed from the air stream.
  • the object of the present invention is achieved by the tumble dryer according to claim 1.
  • the main idea of the present invention is the use of the heat generated by electric and/or electronic power circuits.
  • Said electric and/or electronic power circuits may be provided for controlling the electric motor of the drum, the fan and/or the compressor, for example.
  • Normally the heat of the electric and/or electronic control circuits is wasted.
  • the heating-up phase of the drying cycle is shortened, so that the complete drying cycle can be shortened. It is possible to maximize the heat needed during the stabilized part of the drying cycle.
  • the overall energy consumption and the overall drying time are reduced.
  • the first heat exchanger is formed as a condenser and the second heat exchanger is formed as an evaporator.
  • the refrigerant circuit includes at least one expansion valve. The expansion valve allows cooling down the refrigerant between the condenser and the evaporator.
  • At least one of the control circuits is at least partially arranged downstream of the second heat exchanger and upstream of the first heat exchanger.
  • At least one of the control circuits includes at least one cooling member (for example a heat sink) arranged at least partially within the air stream circuit.
  • at least the cooling member of the control circuit is arranged within the air stream circuit, other parts of the control circuit might be arranged outside the air stream circuit.
  • the cooling member is part of the control circuit.
  • the cooling member comprises a number of cooling ribs formed as sheets and arranged within the air stream circuit.
  • the sheets are aligned parallel to the air stream.
  • the cooling member or at least a part of the cooling member may be formed as a removable plug-in unit.
  • the cooling member may be inserted through an appropriate aperture of the air stream circuit.
  • the cooling member may be easily fixed by a snap-in mechanism.
  • the aperture may be provided by a cover, which closes a part of the air stream circuit. Sealing means are provided between the aperture and the cooling member.
  • the compressor may be arranged within the air stream circuit.
  • the heat released by the compressor can be used for the drying process and contributes to the heating of the air stream. In particular, this is advantageous during the heating-up phase of the drying cycle.
  • the tumble dryer with the heat pump system comprises an air stream circuit 10, a drum 12, a refrigerant circuit 14, a compressor 16, a first heat exchanger 18, a second heat exchanger 20 and an electric and/or electronic control circuit 22, a fan 24 and an expander valve 26.
  • the control circuit 22 can also be described as control unit 22 or control module 22.
  • the air stream circuit 10 forms a closed loop.
  • the drum 12 is an integrated part of the air stream circuit 10.
  • the drum 12 is provided for receiving laundry.
  • the fan 24 is also integrated within the air stream circuit 10 and driven by an electric motor.
  • the fan 24 is provided for generating the air stream within the air stream circuit 10. In FIG 1 the air stream circulates counter-clockwise within the air stream circuit 10.
  • the refrigerant circuit 14 forms also a closed loop.
  • the compressor 16 and the expander valve 26 are integrated parts of the refrigerant circuit 14.
  • the air stream circuit 10 and the refrigerant circuit 14 are thermally coupled by the first heat exchanger 18 and the second heat exchanger 20.
  • the first heat exchanger works as a condenser 18.
  • the second heat exchanger works as an evaporator 20.
  • control circuit 22 for the electric motor of the compressor 16 may be arranged between the evaporator 20 and the condenser 18, and the control circuit 22 for the electric motor of the fan 24 may be arranged downstream of the condenser 18.
  • a refrigerant flows in the refrigerant circuit 14.
  • the refrigerant flows counter-clockwise in the refrigerant circuit 14.
  • the refrigerant is compressed and heated by the compressor 16.
  • the heated refrigerant reaches the condenser 18.
  • the air stream is heated and the refrigerant is cooled down.
  • the refrigerant is expanded and additionally cooled down by the expansion valve 26.
  • the air stream is cooled down and dehydrated and the refrigerant is warmed up.
  • the control circuit 22 within the air stream circuit 10 the air stream is heated up again.
  • FIG 2 and FIG 3 illustrate a schematic perspective view of the heat pump system for the tumble dryer according to the preferred embodiment of the present invention.
  • FIG 2 shows a base plate 30 of a tumble dryer with the substantial components of the heat pump system.
  • a refrigerant circuit 14, a compressor 16, a condenser 18, an evaporator 20, a control circuit 22 comprising a cooling member 23 and a circuit board 23 with electric and/or electronic components 34 (also see FIG 4 ), an expansion valve 26 and a motor bracket 28 are arranged on a base plate 30.
  • the motor bracket 28 is provided for supporting an electric motor for driving the drum 12.
  • the control circuit 22 can also be described as control unit 22 or control module 22.
  • FIG 2 the air stream is opened, in FIG 3 it is closed with a cover. It can be seen that the cooling member 23 of the control circuit 22 is arranged within the air stream circuit. Other parts of the control circuit 22, for example the circuit board 32 with its electric and/or electronic components 34, are arranged outside the air stream circuit.
  • the control circuit 22 can be seen in more detail in FIG 4 .
  • the evaporator 20, the cooling member 23 of the control circuit 22 and the condenser 18 are arranged in series. This constellation allows a small aerodynamic resistance of the air stream. In FIG 2 and FIG 3 the air stream is blown from left to right above the base plate 30.
  • the control circuit 22 between the evaporator 20 and the condenser 18 may be provided for the electric motor of the compressor 16. In a similar way, the control circuit might be arranged downstream of the condenser 18 and may be provided for the electric motor of the drum 12 (not illustrated in the figures).
  • Either the complete control circuit 22 (not illustrated in the figures) or only a cooling member 23 of the control circuit 22 can be arranged within the air stream circuit 10.
  • the cross-section of the cooling member 23 can be adapted to the cross-section of the channel for the air stream circuit 10.
  • the cooling member 23 comprises a number of cooling ribs formed as sheets and arranged within the air stream circuit. Preferably, at least a part of the sheets are aligned parallel to the air stream.
  • each control circuit of the tumble dryer which is a power control circuit
  • the power control circuits generate heat, which is normally wasted. Within the air stream circuit said heat can be used to warm up the air stream.
  • the control circuit in the air stream circuit contributes to low energy consumption.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP09013025.3A 2009-10-15 2009-10-15 Wäschetrockner mit Wärmepumpensystem Active EP2312049B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09013025.3A EP2312049B1 (de) 2009-10-15 2009-10-15 Wäschetrockner mit Wärmepumpensystem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09013025.3A EP2312049B1 (de) 2009-10-15 2009-10-15 Wäschetrockner mit Wärmepumpensystem

Publications (2)

Publication Number Publication Date
EP2312049A1 true EP2312049A1 (de) 2011-04-20
EP2312049B1 EP2312049B1 (de) 2014-04-09

Family

ID=41820518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09013025.3A Active EP2312049B1 (de) 2009-10-15 2009-10-15 Wäschetrockner mit Wärmepumpensystem

Country Status (1)

Country Link
EP (1) EP2312049B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2527526A1 (de) * 2011-05-27 2012-11-28 Electrolux Home Products Corporation N.V. Wäschetrockner mit Drehtrommel
EP2708638A1 (de) * 2012-09-13 2014-03-19 Electrolux Home Products Corporation N.V. Wäschetrockner mit Drehtrommel
EP2728063A1 (de) * 2012-10-30 2014-05-07 Electrolux Home Products Corporation N.V. Wäschebehandlungsmaschine mit Stützgehäuse
WO2015074834A1 (en) * 2013-11-22 2015-05-28 Arcelik Anonim Sirketi A dishwasher comprising a heat pump
EP2948584A4 (de) * 2013-01-25 2016-09-14 Lg Electronics Inc Wäschebehandlungsvorrichtung

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113417A1 (de) 1980-10-29 1982-09-02 Ruhrgas Ag, 4300 Essen Heizungsanlage mit einer absorptionswaermepumpe und verfahren zu deren betrieb
US5430956A (en) * 1990-05-18 1995-07-11 Semtec Muller Ohg Process and device to dry laundry and the like
EP1548916A1 (de) * 2002-09-13 2005-06-29 Aisin Aw Co., Ltd. Antriebseinrichtung
EP1650343A1 (de) 2004-10-20 2006-04-26 SANYO ELECTRIC Co., Ltd. Trockungsvorrichtung, Trockungsvorrichtung und Waschmaschine mit derselben, und ihre Betriebsmethoden
DE102005041145A1 (de) 2005-08-29 2007-03-01 Alpha-Innotec Gmbh Wäschetrockner
US20070063603A1 (en) * 2005-08-22 2007-03-22 Levine Gregory M Integrated motor and controller assemblies for horizontal axis washing machines
EP1788139A1 (de) * 2005-11-17 2007-05-23 LG Electronics Inc. Vorrichtung und Verfahren zum Antrieb des Motors einer Waschmaschine
EP1884586A2 (de) 2006-11-06 2008-02-06 V-Zug AG Wäschetrockner mit Zusatzwärmetauscher
EP2063011A1 (de) 2007-11-22 2009-05-27 Electrolux Home Products Corporation N.V. Elektrisches Haushaltsgerät
DE102007062775A1 (de) * 2007-12-27 2009-07-02 BSH Bosch und Siemens Hausgeräte GmbH Trockner, insbesondere Ablufttrockner
DE102008016473A1 (de) * 2008-03-31 2009-10-01 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit gekühltem Motor sowie Verfahren zu seinem Betrieb

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113417A1 (de) 1980-10-29 1982-09-02 Ruhrgas Ag, 4300 Essen Heizungsanlage mit einer absorptionswaermepumpe und verfahren zu deren betrieb
US5430956A (en) * 1990-05-18 1995-07-11 Semtec Muller Ohg Process and device to dry laundry and the like
EP1548916A1 (de) * 2002-09-13 2005-06-29 Aisin Aw Co., Ltd. Antriebseinrichtung
EP1650343A1 (de) 2004-10-20 2006-04-26 SANYO ELECTRIC Co., Ltd. Trockungsvorrichtung, Trockungsvorrichtung und Waschmaschine mit derselben, und ihre Betriebsmethoden
US20070063603A1 (en) * 2005-08-22 2007-03-22 Levine Gregory M Integrated motor and controller assemblies for horizontal axis washing machines
DE102005041145A1 (de) 2005-08-29 2007-03-01 Alpha-Innotec Gmbh Wäschetrockner
EP1788139A1 (de) * 2005-11-17 2007-05-23 LG Electronics Inc. Vorrichtung und Verfahren zum Antrieb des Motors einer Waschmaschine
EP1884586A2 (de) 2006-11-06 2008-02-06 V-Zug AG Wäschetrockner mit Zusatzwärmetauscher
EP2063011A1 (de) 2007-11-22 2009-05-27 Electrolux Home Products Corporation N.V. Elektrisches Haushaltsgerät
DE102007062775A1 (de) * 2007-12-27 2009-07-02 BSH Bosch und Siemens Hausgeräte GmbH Trockner, insbesondere Ablufttrockner
DE102008016473A1 (de) * 2008-03-31 2009-10-01 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit gekühltem Motor sowie Verfahren zu seinem Betrieb

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2527526A1 (de) * 2011-05-27 2012-11-28 Electrolux Home Products Corporation N.V. Wäschetrockner mit Drehtrommel
EP2708638A1 (de) * 2012-09-13 2014-03-19 Electrolux Home Products Corporation N.V. Wäschetrockner mit Drehtrommel
EP2728063A1 (de) * 2012-10-30 2014-05-07 Electrolux Home Products Corporation N.V. Wäschebehandlungsmaschine mit Stützgehäuse
EP2948584A4 (de) * 2013-01-25 2016-09-14 Lg Electronics Inc Wäschebehandlungsvorrichtung
WO2015074834A1 (en) * 2013-11-22 2015-05-28 Arcelik Anonim Sirketi A dishwasher comprising a heat pump

Also Published As

Publication number Publication date
EP2312049B1 (de) 2014-04-09

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