WO2011151204A2 - Sèche-linge à pompe à chaleur thermoélectrique permettant d'économiser de l'énergie - Google Patents

Sèche-linge à pompe à chaleur thermoélectrique permettant d'économiser de l'énergie Download PDF

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Publication number
WO2011151204A2
WO2011151204A2 PCT/EP2011/058277 EP2011058277W WO2011151204A2 WO 2011151204 A2 WO2011151204 A2 WO 2011151204A2 EP 2011058277 W EP2011058277 W EP 2011058277W WO 2011151204 A2 WO2011151204 A2 WO 2011151204A2
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WO
WIPO (PCT)
Prior art keywords
cooling
condenser
air
drying
process air
Prior art date
Application number
PCT/EP2011/058277
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English (en)
Other versions
WO2011151204A3 (fr
Inventor
Yavuz Sahin
Serdar Kocaturk
Mehmet Kaya
Onur Hartoka
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to EP11720308.3A priority Critical patent/EP2576889B1/fr
Priority to CN201180027594.XA priority patent/CN102906327B/zh
Publication of WO2011151204A2 publication Critical patent/WO2011151204A2/fr
Publication of WO2011151204A3 publication Critical patent/WO2011151204A3/fr

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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

  • the present invention relates to a laundry dryer which comprises a thermoelectric heat pump and wherein energy is saved by increasing the effectiveness of the thermoelectric heat pump.
  • thermoelectric heat pumps also called Peltier elements
  • the thermoelectric heat pumps have hot and cold sides, and performs both the functions of condensing by cooling and also of heating the drying air. While the hot side of the thermoelectric heat pumps used in laundry dryers supports the heater, the cold side supports the condenser.
  • the drying air In the process of drying the laundry, the drying air is cooled by some amount while being passed over the condenser, afterwards is passed over the thermoelectric heat pump and thereby dehumidification process of the drying air is realized in two steps. Similarly, the heating process is also realized in two steps.
  • the drying air which is almost completely dehumidified of the moisture contained therein by passing through the condenser and the thermoelectric heat pump is heated some amount by being passed over the hot side of the thermoelectric heat pump and afterwards the heating process is completed by the drying air being passed over the heater.
  • the cooling load of the condenser and the thermoelectric heat pump should be balanced for an efficient drying process in laundry dryers wherein the heater, the condenser and the thermoelectric heat pumps are used together.
  • the cooling load that is the amount of air that needs to be cooled and condensed
  • the duration of the drying process is prolonged and energy consumption increases.
  • the cooling load becomes unbalanced to the disadvantage of the thermoelectric heat pump
  • a greater amount of the cooling load is compensated by the condenser and the cooling load of the thermoelectric heat pump decreases. Decrease in the cooling load of the thermoelectric heat pump results in the reduction of heating effectiveness and efficiency.
  • a process air fan is used for circulation of the process air and a cooling fan is used for cooling the condenser. Both of the fans are rotated by a single motor. In a portion of the drying cycle duration, cooling fan is rotated in the reverse direction to decrease the volumetric flow of air delivered unto the condenser.
  • the aim of the present invention is the realization of a laundry dryer which comprises a thermoelectric heat pump and wherein energy is saved by increasing the effectiveness of the thermoelectric heat pump.
  • thermoelectric (Peltier) heat pump having a hot side and a cold side
  • the process air activated by the process air fan continues its path in the drying duct after leaving the drum passing from respectively the condenser, the cold side, the hot side and the heater and is delivered again to the drum in dehumidified and heated state.
  • the air delivered to the condenser by being sucked from the outer environment is prevented or restricted by means of a valve placed in the cooling duct without the need to change the speed and operating direction of the motor rotating the cooling fan.
  • the function of cooling the process air is predominantly transferred to the thermoelectric heat pump by decreasing the effectiveness of the condenser.
  • the valve stops the cooling air flow to the condenser by completely closing the cooling duct in the heating phase at the start of the drying process and/or in the last drying phase at the end of the drying process.
  • an opening having a narrower surface area than the cooling duct is arranged on the valve.
  • an adjustment mechanism is disposed in the valve or the cooling duct that provides changing of the area of the opening.
  • valve is disposed between the cooling fan and the condenser.
  • the valve is disposed at the cooling air inlet through which the cooling duct opens to the outside.
  • the cooling air delivered to the condenser is entirely cut off or the volumetric flow of the air is lowered by means of the valve, thereby effectiveness of the condenser is decreased, a large portion of condensation load of the condenser is transferred to the thermoelectric heat pump and energy is saved by increasing the efficiency of the thermoelectric heat pump.
  • Figure 1 – is the schematic view of a laundry dryer.
  • Figure 2 – is the schematic view of the cooling duct, condenser, cooling fan and the valve disposed in the cooling duct situated in a laundry dryer.
  • Figure 3 – is the schematic view of the cooling duct, condenser, cooling fan and the valve disposed in the cooling duct situated in a laundry dryer in another embodiment of the present invention.
  • the laundry dryer (1) comprises a body, a drum (2) wherein the laundry is placed, a drying duct (3) wherein the process air is circulated, a heater (4) that heats the process air, a condenser (5) that condenses the process air, a process air fan (6) that circulates the process air in the drying duct (3), a cooling fan (7) that cools the condenser (5), a motor (8) that drives the drum (2), the process air fan (6) and the cooling fan (7) together, a cooling duct (9) that directs the air sucked from the outer environment by the cooling fan (7) onto the condenser (5) and a thermoelectric heat pump (12) disposed in the drying duct (3), having a cold side (10) that condenses the process air passing thereover by cooling and a hot side (11) that heats the process air passing thereover.
  • the process air activated by the process air fan (6) continues its path in the drying duct (3) after leaving the drum (2) by passing through the condenser (5), the thermoelectric heat pump (12) and the heater (4) to be delivered again to the drum (2) in dehumidified and heated state.
  • the condenser (5) is cooled with the air sucked by the cooling fan (7) from the outer environment and delivered by the cooling duct (9) and condenses the process air passing therethrough.
  • the drying process is accomplished in three stages in the laundry dryer (1).
  • the first stage of the drying process is named as the heating phase, in this phase the heater (4) is operated with a high runtime and the foremost aim is to heat the laundry dryer (1).
  • the second stage of the drying process is named as the steady state or the drying phase and the heater (4) is operated in the drying process with a runtime that is predetermined for the steady state.
  • the third stage of the drying process is named as the last drying phase. In this stage, the moisture contained in the process air is decreased substantially since the drying process is nearing the end, the runtime of the heater (4) is slowly decreased and the heater (4) is entirely turned off at the end of the predetermined time.
  • the laundry dryer (1) of the present invention comprises a valve (13) disposed in the cooling duct (9) which prevents or restricts flow of the air delivered to the condenser (5) by closing the cooling duct (9) in the heating phase at the start of the drying process and/or in the last drying phase at the end of the drying process, without changing the speed and operating direction of the motor (8) rotating the cooling fan (7).
  • the heater (4) and the thermoelectric heat pump (12) heat the process air by drawing a great amount of energy.
  • Changing the condenser (5) to the passive position or decreasing its effectiveness in the heating phase until the temperature of the process air reaches the drying phase (steady state) value increases the efficiency of the drying process and decreases energy consumption.
  • the valve (13) is closed in the heating phase at the start of the drying process, thereby preventing or restricting delivery of air from the cooling fan (7) to the condenser (5). Since effectiveness of the condenser (5) is decreased, the process air passes through the condenser (5) without being cooled and reaches the cold side (10) of the thermoelectric heat pump (12).
  • thermoelectric heat pump (12) The cooling load of the thermoelectric heat pump (12) is increased by delivering the process air to the thermoelectric heat pump (12) in uncooled state, thereby the effectiveness of the hot side (11) is also increased in accordance with the operating principle of the thermoelectric heat pump (12) and the hot side (11) emits more heat to the process air.
  • the valve (13) is opened, allowing air flow from the cooling duct (9) to the condenser (5) and thus the condenser (5) is provided to accomplish its condensation function effectively.
  • the valve (13) is closed as in the heating phase at the start, preventing or restricting delivery of air from the cooling duct (9) to the condenser (5). Accordingly, the process air, even though the amount of humidity therein is decreased, passes from the condenser (5) without being condensed and reaches the cold side (10) of the thermoelectric heat pump (12) and the function of condensing the process air is transferred to the cold side (10). Thus, as in the heating phase at the start, more heat is emitted from the hot side (11) to the process air, the operating efficiency of the thermoelectric heat pump (12) increases and energy consumption decreases.
  • the valve (13) stops the cooling air flow to the condenser (5) by completely closing the cooling duct (9) in the heating phase at the start of the drying process and/or in the last drying phase at the end of the drying process.
  • the laundry dryer (1) comprises an opening (14) disposed on the valve (13), having a surface area narrower than the surface area of the cooling duct (9) in perpendicular direction to the air flow, that delivers cooling air flow to the condenser (5) by restricting but without entirely blocking in the heating phase at the start of the drying process and/or in the last drying phase at the end of the drying process ( Figure 2).
  • the condenser (5) is not changed entirely to the passive position in the heating phase and the last drying phase, the volumetric flow of the air flowing from the cooling duct (9) to the condenser (5) is decreased by means of the opening (14) and the effectiveness of the thermoelectric heat pump (12) is increased by decreasing effectiveness of the condenser (5).
  • the laundry dryer (1) comprises an adjustment mechanism (15) disposed in the valve (13) or the cooling duct (9), providing the surface area of the opening (14) perpendicular to the air flow direction to be changed ( Figure 3).
  • the adjustment mechanism (15) provides the volumetric flow of the air passing through the opening (14) to be adjusted in the closed position of the valve (13) by increasing, decreasing the surface dimension of the opening (14).
  • valve (13) is disposed inside the cooling duct (9) between the cooling fan (7) and the condenser (5).
  • the laundry dryer (1) comprises a cooling air inlet (16) through which the cooling duct (9) opens from the body to the outer environment and the valve (13) is disposed at the cooling air inlet (16).
  • the air delivered from the cooling duct (9) to the condenser (5) by the cooling fan (7) is entirely cut off or the volumetric flow of the air is lowered by means of the valve (13) in the heating phase at the start of the drying process and in the last drying phase at the end of the drying process .
  • the effectiveness of the condenser (5) is decreased, the function of condensing the process air by cooling it is transferred predominantly to the thermoelectric heat pump (12) and energy consumption is decreased by increasing the efficiency of the thermoelectric heat pump (12).
  • the drum (2), the process air fan (6) and the cooling fan (7) are rotated together by the motor (8), it is not necessary to stop or slow down the motor (8) for decreasing the effectiveness of the condenser (5).

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

Abstract

La présente invention concerne un sèche-linge (1) comprenant un tambour (2) dans lequel est placé le linge, un conduit de séchage (3) dans lequel circule l'air de traitement, un dispositif de chauffage (4) qui chauffe l'air de traitement, un condenseur (5) qui condense l'air de traitement, un ventilateur d'air de traitement (6) qui fait circuler l'air de traitement dans le conduit de séchage (3), un ventilateur de refroidissement (7) qui refroidit le condenseur (5), un moteur (8) qui entraîne le ventilateur d'air de traitement (6) et le ventilateur de refroidissement (7) en même temps, un conduit de refroidissement (9) qui dirige l'air aspiré depuis l'environnement extérieur par le ventilateur de refroidissement (7) sur le condenseur (5) et une pompe à chaleur thermoélectrique (12) disposée dans le conduit de séchage (3), ayant un côté froid (10) qui condense l'air de traitement qui lui passe au-dessus par refroidissement et un côté chaud (11) qui chauffe l'air de traitement qui lui passe au-dessus.
PCT/EP2011/058277 2010-06-04 2011-05-20 Sèche-linge à pompe à chaleur thermoélectrique permettant d'économiser de l'énergie WO2011151204A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11720308.3A EP2576889B1 (fr) 2010-06-04 2011-05-20 Sèche-linge à pompe à chaleur thermoélectrique permettant d'économiser de l'énergie
CN201180027594.XA CN102906327B (zh) 2010-06-04 2011-05-20 节能的热电热泵衣物干燥机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201004514 2010-06-04
TRA2010/04514 2010-06-04

Publications (2)

Publication Number Publication Date
WO2011151204A2 true WO2011151204A2 (fr) 2011-12-08
WO2011151204A3 WO2011151204A3 (fr) 2012-03-08

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PCT/EP2011/058277 WO2011151204A2 (fr) 2010-06-04 2011-05-20 Sèche-linge à pompe à chaleur thermoélectrique permettant d'économiser de l'énergie

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Country Link
EP (1) EP2576889B1 (fr)
CN (1) CN102906327B (fr)
WO (1) WO2011151204A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014180696A1 (fr) * 2013-05-09 2014-11-13 Arcelik Anonim Sirketi Sèche-linge à pompe à chaleur thermoélectrique
EP3015591A1 (fr) * 2014-10-28 2016-05-04 LG Electronics Inc. Appareil de traitement de vêtements et procédé de commande correspondant
EP3392395A4 (fr) * 2015-12-16 2019-01-09 Qingdao Haier Drum Washing Machine Co., Ltd. Dispositif et procédé de séchage de vêtements
DE102020102838A1 (de) 2020-02-05 2021-08-05 Miele & Cie. Kg Wäschetrockner
WO2021177707A1 (fr) * 2020-03-02 2021-09-10 엘지전자 주식회사 Appareil de gestion de vêtements

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9140396B2 (en) 2013-03-15 2015-09-22 Water-Gen Ltd. Dehumidification apparatus
EP3117166B1 (fr) 2014-03-11 2020-04-08 Watergen Ltd Sèche-linge à condensation à cycle fermé avec régénération thermique
CN105937160A (zh) * 2016-05-31 2016-09-14 无锡小天鹅股份有限公司 干衣机或洗干一体机
US11851807B2 (en) * 2019-11-07 2023-12-26 Whirlpool Corporation Method of removing heat from a clothes tumbling system on the outside of the cabinet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1108812A1 (fr) 1999-12-13 2001-06-20 BSH Bosch und Siemens Hausgeräte GmbH Sèche-linge a condensation domestique et sa méthode de mise en oeuvre
WO2008052906A2 (fr) 2006-10-31 2008-05-08 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour faire fonctionner un appareil électroménager destiné à l'entretien du linge

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101158099B (zh) * 2006-10-08 2011-04-27 海尔集团公司 一种采用热泵作为热源的洗衣机干燥机
WO2009016173A1 (fr) * 2007-08-02 2009-02-05 Arcelik Anonim Sirketi Machine à laver/sécheuse
DE102008040853A1 (de) * 2008-07-30 2010-02-04 BSH Bosch und Siemens Hausgeräte GmbH Kondensationstrockner mit einer Wärmepumpe und Erkennung eines unzulässigen Betriebszustands sowie Verfahren zu seinem Betrieb
DE102008041019A1 (de) * 2008-08-06 2010-02-11 BSH Bosch und Siemens Hausgeräte GmbH Kondensationstrockner mit einer Wärmepumpe und Erkennung eines unzulässigen Betriebszustands sowie Verfahren zu seinem Betrieb

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1108812A1 (fr) 1999-12-13 2001-06-20 BSH Bosch und Siemens Hausgeräte GmbH Sèche-linge a condensation domestique et sa méthode de mise en oeuvre
WO2008052906A2 (fr) 2006-10-31 2008-05-08 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour faire fonctionner un appareil électroménager destiné à l'entretien du linge

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014180696A1 (fr) * 2013-05-09 2014-11-13 Arcelik Anonim Sirketi Sèche-linge à pompe à chaleur thermoélectrique
EP3015591A1 (fr) * 2014-10-28 2016-05-04 LG Electronics Inc. Appareil de traitement de vêtements et procédé de commande correspondant
KR20160049735A (ko) * 2014-10-28 2016-05-10 엘지전자 주식회사 의류처리장치 및 그 제어방법
US10184206B2 (en) 2014-10-28 2019-01-22 Lg Electronics Inc. Clothes treating apparatus and control method thereof
KR102364673B1 (ko) * 2014-10-28 2022-02-18 엘지전자 주식회사 의류처리장치 및 그 제어방법
EP3392395A4 (fr) * 2015-12-16 2019-01-09 Qingdao Haier Drum Washing Machine Co., Ltd. Dispositif et procédé de séchage de vêtements
DE102020102838A1 (de) 2020-02-05 2021-08-05 Miele & Cie. Kg Wäschetrockner
WO2021177707A1 (fr) * 2020-03-02 2021-09-10 엘지전자 주식회사 Appareil de gestion de vêtements

Also Published As

Publication number Publication date
EP2576889A2 (fr) 2013-04-10
WO2011151204A3 (fr) 2012-03-08
CN102906327B (zh) 2015-09-23
CN102906327A (zh) 2013-01-30
EP2576889B1 (fr) 2014-04-30

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