EP2744936B1 - Appareil seche-linge muni d'une pompe a chaleur comprenant un moteur et son procede de fonctionnement - Google Patents

Appareil seche-linge muni d'une pompe a chaleur comprenant un moteur et son procede de fonctionnement Download PDF

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Publication number
EP2744936B1
EP2744936B1 EP20120743981 EP12743981A EP2744936B1 EP 2744936 B1 EP2744936 B1 EP 2744936B1 EP 20120743981 EP20120743981 EP 20120743981 EP 12743981 A EP12743981 A EP 12743981A EP 2744936 B1 EP2744936 B1 EP 2744936B1
Authority
EP
European Patent Office
Prior art keywords
thermoelectric generator
drive
heat pump
cooling device
tumble dryer
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.)
Not-in-force
Application number
EP20120743981
Other languages
German (de)
English (en)
Other versions
EP2744936A1 (fr
Inventor
Johannes EICHSTÄDT
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL12743981T priority Critical patent/PL2744936T3/pl
Publication of EP2744936A1 publication Critical patent/EP2744936A1/fr
Application granted granted Critical
Publication of EP2744936B1 publication Critical patent/EP2744936B1/fr
Not-in-force 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 
    • 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

  • the invention relates to a laundry drying apparatus having a heat pump comprising a drive and having at least one further functional element, wherein the at least one further functional element comprises a cooling device.
  • the invention further relates to a method for operating a laundry drying apparatus with a heat pump comprising a drive and at least one further functional element of the laundry drying apparatus in the form of a cooling device.
  • Laundry dryers equipped with heat pumps have a considerably reduced energy requirement for drying laundry.
  • a quasi-steady state is reached, in which the waste heat generated during operation of the compressor has to be dissipated in order to avoid overheating of the entire system.
  • a cooling air blower which cools the drive of the heat pump by means of supplied ambient air, wherein the resulting heated exhaust air subsequently escapes from the device.
  • Such a clothes dryer is in the DE 44 09 607 C2 described.
  • thermoelectric heat pump which can also be used as a thermoelectric generator for operating a further functional element, in particular an interior lighting, a sensor or a controller.
  • a laundry drying apparatus having a heat pump comprising a drive, and at least one further functional element wherein the laundry drying apparatus comprises a thermoelectric generator, a hot side of the thermoelectric generator is located on the drive and a supply output of the thermoelectric generator with the at least one further functional element of the Clothes drying machine is electrically connected.
  • the at least one further functional element comprises a cooling device.
  • thermoelectric generator uses this temperature difference to generate an electrical voltage, the so-called. Thermoelectric voltage.
  • the thermoelectric voltage can be used to operate the at least one further functional element.
  • the at least one functional element can be driven autonomously (i.e., without a provided external power supply (power supply, gas supply, etc.), which lowers the energy requirements of the laundry dryer.
  • the heat pump can be any heat pump which receives the energy required for its operation via a drive.
  • the drive can be a mechanical drive, for example a compressor in a heat pump, in which a cyclically vaporized and liquefied refrigerant circulates, or a drive of a Stirling heat pump.
  • a drive in the form of a thermal drive ie a heat source, in a Vuilleumier heat pump.
  • thermoelectric generator can in particular be based on the Seebeck effect (Seebeck generator).
  • the thermal voltage .DELTA.V can in particular be proportional to the temperature difference .DELTA.T.
  • the operation of a thermoelectric generator is basically known and need not be further elaborated here.
  • the laundry drying device may be in particular a household appliance.
  • the laundry drying apparatus may have a general receiving space for receiving laundry for drying thereof.
  • the receiving space may in particular be a laundry drum, in particular with a hollow cylindrical basic shape.
  • the laundry drum can be static or rotatable.
  • the clothes dryer may be a top loader or a front loader.
  • the tumble dryer can be a forced air tumble dryer or an exhaust air dryer.
  • the clothes dryer may be a tumble dryer or a washer-dryer.
  • thermoelectric generator may in particular be connected to an outside of the drive, e.g. soldered, glued thermally conductive and / or screwed.
  • the cold side may be connected to another article or area of the heat pump clothes dryer as the drive.
  • the at least one further functional element comprises a cooling device. This can prevent overheating of heat-sensitive components without an additional expenditure of energy.
  • the at least one functional element comprises a cooling device for cooling the drive.
  • the cooling device in particular the cooling device for cooling the drive, comprises a fan or fan.
  • the cooling device is adapted to cool a cold side of the thermoelectric generator. This reduces the temperature T 1 of the cold side, which in turn increase the temperature difference .DELTA.T and the thermal voltage .DELTA.V. This in turn increases the efficiency of the thermoelectric generator.
  • the cooling device is a fan, it is a development that the cooling device is adapted to blow a cold side of the thermoelectric generator.
  • thermoelectric generator is a plate-shaped generator whose one main side is its hot side and whose other main side is its cold side.
  • a thermoelectric generator is particularly compact and resistant.
  • Under a plate-shaped generator can be understood in particular a generator whose thickness significantly smaller than its width and length, in particular by at least an order of magnitude.
  • a main page may in particular be understood to mean a page whose extent is determined by the length and the width.
  • the plate-shaped generator can be flat or curved.
  • the plate-shaped thermoelectric generator is fixed with its warm side to the drive, in particular is attached flat. So a high performance can be achieved.
  • the cold side of the plate-shaped thermoelectric generator is a free surface.
  • the cold side is not connected to another component of the laundry dryer, but is adjacent to air.
  • the fan may be directed to the cold side of the plate-shaped thermoelectric generator. This provides the advantage that both the cold side and the drive can be cooled with a cooling air flow generated by the fan.
  • cold side cooling may occur. be achieved by a branch of a blown by the blower on the cold side auxiliary cooling air flow.
  • the cooling device is adapted to work only from a minimum thermal voltage.
  • a noise can be suppressed and a life of the cooling device, in particular a blower, be extended.
  • the drive is a compressor for a circulating in the heat pump refrigerant, wherein the heat pump in addition an evaporator for evaporating the refrigerant, a condenser for liquefying the refrigerant and a throttle, so a relaxation device (eg, a throttle valve or a capillary) for relaxing the refrigerant.
  • the evaporator in particular, with a process air duct for drying process air at a warmer point and the condenser with the process air duct at a colder point thermally coupled. Due to the fact that the evaporator is thermally coupled to the warmer point, heat is withdrawn from the process air duct or process air located there and transferred to the evaporator.
  • thermoelectric generator operates at least one further functional element of the laundry dryer in the form of a cooling device.
  • thermoelectric generator drives a fan to cool the compressor.
  • thermoelectric generator may be a plate-shaped generator whose one main side is its hot side and whose other main side is its cold side, and the thermoelectric generator with its hot side attached to the drive.
  • the figure shows a laundry drying device 1 in the form of a household circulating air dryer.
  • the laundry drying device 1 is designed as a front loader and has a rotatable laundry drum 2.
  • the laundry drum 2 is part of a closed process air circuit, together with a process air duct 3, which connects on the one hand to an input 4 of the laundry drum 2 and on the other hand at an output 5 of the laundry drum 2.
  • a process air duct 3 is a fan 6 to circulate process air L in the process air circuit 2, 3.
  • a heat pump 7 to 10, K has an evaporator 7, a drive 8 in the form of a compressor 8, a condenser 9 and a relaxation device in the form of a throttle valve 10. These elements of the heat pump 7 to 10 form a refrigerant K leading refrigeration cycle in this order.
  • the evaporator 7 serves as a heat exchanger and withdraws from the laundry drum 2 exiting, warm-moist process air L heat. By means of the heat pump 7 to 10, this heat is transferred to the condenser 9.
  • the evaporated refrigerant K is compressed by the compressor 8, thereby increasing its internal pressure and its temperature.
  • the compressed, still gaseous refrigerant K then passes to the condenser 9.
  • the process air L in turn condenses on the evaporator 7 and is performed as a colder, dry process air L through the blower 6 to the condenser 9.
  • the condenser 9 serves as a heat exchanger, but now from the condenser 9 heat, which happens by liquefaction of the refrigerant K due to the cooling by the colder process air L, is transferred to the process air L, so that the process air L as dry-warm Process air L is blown into the laundry drum 2.
  • the process air L heats the laundry W to be dried and absorbs moisture released therefrom.
  • the compressor 8 In an operation of the laundry drying apparatus 1, the compressor 8 generates in this embodiment, a waste heat of about 300 W and is thereby heated above average. As a result, the compressor 8 represents the hottest component of the laundry drying apparatus 1 at about 95 ° C., while the components surrounding it have a temperature of up to only 50 ° C.
  • the laundry drying apparatus 1 has a fan 11, the air flow of which can overflow the compressor 8 and thus cool it.
  • the blower 11 may suck in air from the laundry drying apparatus 1 or from an environment of the laundry drying apparatus 1, e.g. through air passage slots 12a in a housing wall 12 or by means of a cooling air duct, suck.
  • the thermal voltage .DELTA.V can in particular be proportional to the temperature difference .DELTA.T.
  • the thermoelectric generator 13 is here plate-shaped, wherein the cold side 14 and the hot side 15 correspond to a respective main page.
  • the hot side 15 of the thermoelectric generator 13 is attached directly or indirectly (eg via a thermally highly conductive intermediate material) flat to the compressor 8, for example by soldering, screwing, gluing, etc.
  • the cold side 14 is a free surface which is adjacent to air.
  • the blower 11 is arranged and arranged to also cool the cold side 14 of the thermoelectric generator 13.
  • both the cold side 14 of the thermoelectric generator 13 and the compressor 8 can be blown by the blower 11. This reduces the temperature T 1 of the cold side, which in turn increase the temperature difference .DELTA.T and the thermal voltage .DELTA.V.
  • thermoelectric generator 13 to which the thermoelectric voltage .DELTA.V or an associated quantity is present, is electrically connected to at least the blower 11 to supply it with electricity. Since the compressor 8 generates the waste heat of about 300 W, can at a typical efficiency of the thermoelectric generator 13 of 8% a fan with 24 W are operated.
  • low temperature difference .DELTA.T only a small thermal voltage .DELTA.V is generated, so that the fan 11 runs only slowly and thus produces a comparatively low cooling effect.
  • increasing temperature difference .DELTA.T also increases the cooling capacity of the blower 11. This cooling structure is therefore self-regulating and requires no external control or regulation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (12)

  1. Sèche-linge (1) muni d'une pompe à chaleur (7, 8, 9, 10) comprenant un entraînement (8) et muni d'au moins un élément fonctionnel supplémentaire (11), l'au moins un élément fonctionnel supplémentaire (11) comprenant un dispositif de refroidissement (11),
    caractérisé en ce que
    - le sèche-linge (1) présente un générateur thermoélectrique (13),
    - en ce qu'un côté chaud (15) du générateur thermoélectrique (13) se trouve sur l'entraînement (8), et
    - en ce qu'une sortie d'alimentation (16) du générateur thermoélectrique (13) est raccordée électriquement à l'au moins un élément fonctionnel supplémentaire (11) du sèche-linge (1).
  2. Sèche-linge (1) selon la revendication 1, l'au moins un élément fonctionnel supplémentaire (11) comprenant un dispositif de refroidissement (11) destiné à refroidir l'entraînement (8).
  3. Sèche-linge (1) selon l'une quelconque des revendications précédentes, le dispositif de refroidissement (11) comprenant un ventilateur (11).
  4. Sèche-linge (1) selon l'une quelconque des revendications précédentes, le dispositif de refroidissement (11) étant agencé pour refroidir un côté froid (14) du générateur thermoélectrique (13).
  5. Sèche-linge (1) selon la revendication 4,
    - le générateur thermoélectrique (13) étant un générateur en forme de plaque, dont un côté principal représente son côté chaud (15) et dont l'autre côté principal représente son côté froid (14), et
    - le générateur thermoélectrique (13) étant fixé sur l'entraînement (8) avec son côté chaud (15).
  6. Sèche-linge (1) selon l'une quelconque des revendications précédentes, le dispositif de refroidissement (11) étant agencé pour travailler seulement à partir d'une tension thermique minimale.
  7. Sèche-linge (1) selon l'une quelconque des revendications précédentes, dans lequel l'entraînement (8) est un compresseur (8) pour un réfrigérant circulant dans la pompe à chaleur (7, 8, 9, 10) et dans lequel la pompe à chaleur (7, 8, 9, 10) présente en plus un évaporateur (7) destiné à l'évaporation du réfrigérant, un condenseur (9) destiné à condenser le réfrigérant et un restricteur (10) destiné à détendre le réfrigérant.
  8. Procédé de fonctionnement d'un sèche-linge (1) muni d'une pompe à chaleur (7, 8, 9, 10) comprenant un entraînement (8) et muni d'au moins un élément fonctionnel supplémentaire (11) du sèche-linge (1) sous forme d'un dispositif de refroidissement (11), caractérisé en ce qu'une chaleur dissipée de l'entraînement (8) est utilisée pour faire fonctionner un générateur thermoélectrique (13) et en ce que le générateur thermoélectrique (13) fait fonctionner l'élément fonctionnel supplémentaire (11).
  9. Procédé selon la revendication 8, le générateur thermoélectrique (13) entraînant un dispositif de refroidissement (11) sous forme d'un ventilateur (11) destiné à refroidir l'entraînement (8).
  10. Procédé selon la revendication 9, le ventilateur (11) soufflant sur un côté froid (14) du générateur thermoélectrique (13).
  11. Procédé selon la revendication 10,
    - le générateur thermoélectrique (13) étant un générateur en forme de plaque, dont un côté principal représente son côté chaud (15) et dont l'autre côté principal représente son côté froid (14), et
    - le générateur thermoélectrique (13) étant fixé sur l'entraînement (8) avec son côté chaud (15).
  12. Procédé selon l'une quelconque des revendications 8 à 11, le dispositif de refroidissement (11) travaillant seulement à partir d'une tension thermique minimale.
EP20120743981 2011-08-16 2012-08-07 Appareil seche-linge muni d'une pompe a chaleur comprenant un moteur et son procede de fonctionnement Not-in-force EP2744936B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12743981T PL2744936T3 (pl) 2011-08-16 2012-08-07 Urządzenie do suszenia prania z pompą ciepła zawierającą napęd oraz sposób jego eksploatacji

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011081022A DE102011081022A1 (de) 2011-08-16 2011-08-16 Wäschetrocknungsgerät mit einer Wärmepumpe umfassend einen Antrieb sowie Verfahren zu seinem Betrieb
PCT/EP2012/065444 WO2013023958A1 (fr) 2011-08-16 2012-08-07 Appareil sèche-linge muni d'une pompe à chaleur comprenant un moteur et son procédé de fonctionnement

Publications (2)

Publication Number Publication Date
EP2744936A1 EP2744936A1 (fr) 2014-06-25
EP2744936B1 true EP2744936B1 (fr) 2015-05-06

Family

ID=46639507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120743981 Not-in-force EP2744936B1 (fr) 2011-08-16 2012-08-07 Appareil seche-linge muni d'une pompe a chaleur comprenant un moteur et son procede de fonctionnement

Country Status (4)

Country Link
EP (1) EP2744936B1 (fr)
DE (1) DE102011081022A1 (fr)
PL (1) PL2744936T3 (fr)
WO (1) WO2013023958A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPR20130024A1 (it) * 2013-03-29 2014-09-30 Indesit Co Spa Elettrodomestico di asciugatura.
WO2015068092A1 (fr) 2013-11-06 2015-05-14 BSH Hausgeräte GmbH Pompe à chaleur destinée à un appareil ménager
EP2871432A1 (fr) 2013-11-06 2015-05-13 BSH Hausgeräte GmbH Pompe à chaleur pour un appareil ménager
EP2985466A1 (fr) 2014-08-14 2016-02-17 BSH Electrodomésticos España, S.A. Compresseur rotatif, pompe à chaleur et appareil ménager
EP3426838B1 (fr) * 2016-03-07 2019-12-11 Arçelik Anonim Sirketi Sèche-linge comprenant un élément thermoélectrique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409607C2 (de) * 1993-04-21 2002-03-14 Miele & Cie Kondensationswäschetrockner mit einer Wärmepumpe
DE19853234A1 (de) * 1998-10-21 2000-05-04 Whirlpool Co Wäschetrockner mit einer Wärmepumpe
US20070000068A1 (en) * 2005-06-30 2007-01-04 Gerard France Paul Amaat R Fabric article treating device and system
DE102005060040A1 (de) * 2005-12-15 2007-06-21 BSH Bosch und Siemens Hausgeräte GmbH Schaltungsanordnung für ein Peltiermodul
DE102008042832A1 (de) * 2008-10-14 2010-04-22 BSH Bosch und Siemens Hausgeräte GmbH Elektrogerät mit einem Bereitschaftsmodul
ES2414408T3 (es) * 2009-06-29 2013-07-19 Arçelik Anonim Sirketi Secadora de ropa cuya eficacia de secado se incrementa mediante el uso de diferentes fuentes de calor
JP2013510417A (ja) * 2009-11-03 2013-03-21 ビーエーエスエフ ソシエタス・ヨーロピア 熱電モジュールの接点接続としての多孔質金属材料の使用方法

Also Published As

Publication number Publication date
WO2013023958A1 (fr) 2013-02-21
DE102011081022A1 (de) 2013-02-21
EP2744936A1 (fr) 2014-06-25
PL2744936T3 (pl) 2015-09-30

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