EP1342828B1 - Sèche-linge - Google Patents

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Publication number
EP1342828B1
EP1342828B1 EP03002961A EP03002961A EP1342828B1 EP 1342828 B1 EP1342828 B1 EP 1342828B1 EP 03002961 A EP03002961 A EP 03002961A EP 03002961 A EP03002961 A EP 03002961A EP 1342828 B1 EP1342828 B1 EP 1342828B1
Authority
EP
European Patent Office
Prior art keywords
washer
fan
heat exchanger
dryer according
warm
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.)
Expired - Lifetime
Application number
EP03002961A
Other languages
German (de)
English (en)
Other versions
EP1342828A2 (fr
EP1342828A3 (fr
Inventor
Theodor Blum
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1342828A2 publication Critical patent/EP1342828A2/fr
Publication of EP1342828A3 publication Critical patent/EP1342828A3/fr
Application granted granted Critical
Publication of EP1342828B1 publication Critical patent/EP1342828B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/512—Marks, e.g. invisible to the human eye; Patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/40—Movement
    • B65H2513/42—Route, path

Definitions

  • the invention relates to a tumble dryer according to the preamble of claim 1.
  • Such a clothes dryer is known from DE 199 04 993 A1.
  • the fans for the warm air and the cold air are operated in different directions of rotation.
  • the impellers results due to a total shortened drying time of the laundry in the drum, an energy-reduced drying process.
  • the drying process is still not optimized.
  • a tumble dryer is also known, in which a Peltier element is provided.
  • the Peltier element is arranged both with its cold side and with its warm side in the same air line.
  • JP Patent Abstracts of Japan 08057194 A likewise discloses a tumble dryer in which, in turn, a Peltier element is arranged both with its cold side and with its warm side in the same air flow.
  • the object of the invention is thus seen to improve the drying process in a tumble dryer of the type mentioned.
  • the invention proposes that a clothes dryer is formed with the features of the preamble of claim 1 corresponding to the characterizing part of this claim.
  • the hot side of at least one Peltier element is provided as the heating device, which is arranged in the hot air flow.
  • the cold side of the Peltier element is arranged in a closed cold air flow. This leads to a very favorable Energy balance for the drying process, since both the hot side and the cold side of the Peltier element is used. Due to the cooled cold air flow results in an increased condensation of hot air in the heat exchanger, so that a rapid dehumidification of the laundry is ensured in the drum.
  • several thermally connected in series Peltier elements are arranged in the form of a Peltier cascade instead of a Peltier element.
  • the tumble dryer Since the cold air circuit and the hot air circuit are closed, the tumble dryer is completely closed to the outside, so that the room climate at the site by the drying process is not or only slightly influenced by a slight increase in temperature. In particular, there is no increase in the humidity.
  • the heat exchanger is advantageously a countercurrent heat exchanger.
  • a cross flow heat exchanger was used.
  • the countercurrent heat exchanger used in the tumble dryer according to the invention is characterized in that takes place over the entire longitudinal sectional area of this heat exchanger, a temperature exchange of the two air streams.
  • a further embodiment of the invention provides that between the cold side and the hot side of the at least one Peltier element to increase the distance of the radiator surfaces on the cold side of the hot side at least one spacer element is arranged. As a result, a better power balance is achieved because the hot side and the cold side are thermally decoupled.
  • the fan in the hot air circuit is a centrifugal fan with a first fan.
  • the same fan is also used in the cold air circuit, for which purpose a second fan is provided.
  • Both Fan wheels of the centrifugal fan are arranged on the same axis and driven by a single drive motor.
  • a vacuum pump is provided.
  • the vacuum pump is located inside the dryer and reduces the air pressure within the dryer by about 0.2 bar. This leads to an increase in the efficiency of the drying process, since the evaporation temperature is lowered by the use of the vacuum pump, thereby allowing a very low drying temperature.
  • the tumble dryer 1 has a closed hot air circuit 2 and a closed cold air circuit 3.
  • a first fan 5 of a fan 6, a hot side 7 of a Peltier cascade 8 with Peltier elements as a heater, a rotatably mounted drum 9 for receiving the laundry to be dried, a lint filter 10 and a heat exchanger 11 are arranged in the flow direction 4 below.
  • a second fan 13 of the fan 6, a cold side 14 of the Peltier cascade 8 for cooling the cold air and the heat exchanger 11 are arranged in the flow direction 12 below.
  • a container 15 is provided for receiving the condensed water.
  • the fan 6 is a centrifugal fan, wherein the first fan 5 and the second fan 13 on the same axis are arranged and driven by a single drive motor.
  • the hot side 7 of the Peltier cascade 8 is designed as a multipart air cooler.
  • the cold side 14 of the Peltier cascade 8 is formed as a one-piece air cooler.
  • the Peltier cascade 8 has a total of 3 Doppelpeltier sculpture 16, which are thermally arranged in series. Between each Doppelpeltierelement 16, a spacer 17 is provided so that the hot side 7 and the cold side 14 have a greater distance from each other and thus are thermally decoupled.
  • 14 insulating elements 18 are provided between the hot side 7 and the cold side.
  • the spacers 17 have a high thermal conductivity to allow an effective heat transfer from the Peltier elements 16 to the hot side 7.
  • the spacers 17 are made of copper. However, other materials with high thermal conductivity are also conceivable.
  • the thickness of the Peltier elements is 4 mm and the thickness of each spacer element 17 is at least 10 mm.
  • the heat exchanger 11 is a countercurrent heat exchanger.
  • the countercurrent heat exchanger has individual, superimposed profile plates 19, wherein each profile plate 19 is formed a hexagonal overall.
  • the profile plates 19 for the hot air and the profile plates 19 for the cold air are alternately superimposed, wherein the profile plates 19 are rotated for the cold air and the profile plates 19 for the hot air in the plate plane by 180 ° against each other.
  • a release layer is arranged between each profile plate 19, a release layer.
  • Each profile plate 19 has a wave-shaped profile and consists of a first triangular shape 20, a second triangular shape 21 and a rectangular shape 22. At, seen in the longitudinal direction of the profile plate 19, opposite sides of the rectangular shape 22 is followed by a triangular shape 20, 21 at.
  • Each triangular shape 20, 21 is made so that each profile channel 23 of the triangular shape 20 and each profile channel 24 of the triangular shape 21 to two profile channels 25 of the rectangular shape 22 connects exactly. This accurate determination of the widths of the profile channels is accomplished by cutting or punching each triangle shape from a material such that the ratio of hypotenuse to height is 3.5 to 1 for each triangle shape.
  • the triangular shapes are identical.
  • the Profile channels 23, 24 of the triangular shapes 20, 21 run obliquely, in particular at an angle of approximately 60 °, to the longitudinal direction, while the profile channels 25 of the rectangular shape 22 run parallel to the longitudinal direction.
  • the cold air and the hot air flow over the entire longitudinal sectional area of the heat exchanger 11 through the profile channels 23,24,25, so that a heat exchange is ensured over the entire longitudinal sectional area.
  • FIG. 2 shows schematically the arrangement of the Peltier cascade 8, the heat exchanger 11, the drum 9, the container 15 for the condensed water and a motor 27 for the drum 9 within the tumble dryer 1 according to the invention.
  • the arrangement of the blower 6 is located at the back of the Peltier cascade 8.
  • an operating bar 26 is provided for the operation of the tumble dryer 1 at the front of the tumble dryer 1.
  • a vacuum pump 28 is provided, which is arranged inside the tumble dryer 1.
  • the air pressure within the clothes dryer 1 is reduced by about 0.2 bar, whereby an increase in the efficiency of the drying process is achieved, since the evaporation temperature is lowered by the use of the vacuum pump 28.
  • the heat exchanger 11 in Fig. 3 is drawn out only for a better representation of the air duct and is actually arranged in the tumble dryer 1.
  • the hot air flows in a closed circuit the drum 9 with the wet laundry, then the lint filter 10 and then the heat exchanger 11 and further the fan 5 warm side and designed as an air cooler warm side 7 of the Peltier cascade 8 warm side.
  • the cold air flows in a closed circuit from the outlet of the air cooler designed as a cold side 14 through the heat exchanger 11, back to the fan 13 cold side and again through the cold side 14th
  • the drying of the laundry can be carried out at low drying temperature and is therefore particularly gentle. Since the circuits for the warm air and the cold air are completely closed, the room climate at the site by the drying process is only very slightly influenced by a slight increase in temperature. There is no increase in humidity and no lint. The countercurrent heat exchanger 11 allows a high temperature difference despite the low temperature. Furthermore, the tumble dryer is very quiet due to the closed arrangement.

Landscapes

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

Claims (10)

  1. Sèche-linge possédant un circuit d'air chaud fermé (2) dans lequel un ventilateur (6), un dispositif de chauffage (8), un tambour (9) destiné à recevoir le ligne et un échangeur de chaleur (11) avec réservoir d'eau de condensation (15) sont disposés successivement, et possédant un ventilateur (6) servant à générer un courant d'air froid (3) à travers l'échangeur de chaleur (11) pour déshumidifier l'air chaud,
    caractérisé par le fait
    que le dispositif de chauffage (8) est un côté chaud (7) d'au moins un élément Peltier, le côté chaud (7) étant disposé dans le circuit d'air chaud fermé (2) et un côté froid (14) dudit au moins un élément Peltier dans un circuit d'air froid fermé (3).
  2. Sèche-linge selon la revendication 1,
    caractérisé par le fait
    que l'échangeur de chaleur (11) est un échangeur de chaleur à contre-courant.
  3. Sèche-linge selon la revendication 2,
    caractérisé par le fait
    que l'échangeur de chaleur à contre-courant présente des plaques profilées (19) individuelles superposées pour un premier courant d'air et un deuxième courant d'air, chaque plaque profilée (19) étant de forme hexagonale et présentant une forme rectangulaire (22) ainsi qu'une première forme triangulaire (20) et une deuxième forme triangulaire (21) qui se raccordent chacun à un côté opposé de la forme rectangulaire (22) vu en direction longitudinale de la plaque profilée (19) et peuvent être reliées fluidiquement.
  4. Sèche-linge selon la revendication 3,
    caractérisé par le fait
    que chaque canal profilé (23) de la première forme triangulaire (20) et chaque canal profilé (24) de la deuxième forme triangulaire (21) peuvent être reliés fluidiquement par deux canaux profilés (25) de la forme rectangulaire (22).
  5. Sèche-linge selon la revendication 3 ou 4,
    caractérisé par le fait
    que dans chaque forme triangulaire (20, 21), le rapport de l'hypoténuse à la hauteur est de 3,5 à 1.
  6. Sèche-linge selon l'une des revendications précédentes,
    caractérisé par le fait
    qu'au moins un élément d'écartement (17) est disposé entre le côté froid (14) et le côté chaud (7) de la cascade Peltier (8).
  7. Sèche-linge selon l'une des revendications précédentes,
    caractérisé par le fait
    que le ventilateur (6) dans le circuit d'air chaud (2) est un ventilateur radial avec une première roue de ventilateur (5).
  8. Sèche-linge selon la revendication 7,
    caractérisé par le fait
    que le ventilateur (6) dans le circuit d'air froid (3) est le même ventilateur que dans le circuit d'air chaud (2) et présente une deuxième roue de ventilateur (13).
  9. Sèche-linge selon la revendication 7 ou 8,
    caractérisé par le fait
    que la première roue de ventilateur (5) et la deuxième roue de ventilateur (13) du ventilateur radial sont disposées sur le même axe.
  10. Sèche-linge selon l'une des revendications précédentes,
    caractérisé par le fait
    qu'une pompe à vide (28) est prévue.
EP03002961A 2002-02-21 2003-02-11 Sèche-linge Expired - Lifetime EP1342828B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20202782U 2002-02-21
DE20202782U DE20202782U1 (de) 2002-02-21 2002-02-21 Wäschetrockner

Publications (3)

Publication Number Publication Date
EP1342828A2 EP1342828A2 (fr) 2003-09-10
EP1342828A3 EP1342828A3 (fr) 2004-12-01
EP1342828B1 true EP1342828B1 (fr) 2006-12-20

Family

ID=7968139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03002961A Expired - Lifetime EP1342828B1 (fr) 2002-02-21 2003-02-11 Sèche-linge

Country Status (3)

Country Link
EP (1) EP1342828B1 (fr)
AT (1) ATE348909T1 (fr)
DE (2) DE20202782U1 (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10334792A1 (de) * 2003-07-30 2005-02-24 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine
DE102004025066A1 (de) * 2004-05-18 2005-12-08 Basf Ag Telluride mit neuen Eigenschaftskombinationen
DE102004025065A1 (de) * 2004-05-18 2005-12-08 Basf Ag Antimonide mit neuen Eigenschaftskombinationen
DE102004055926A1 (de) * 2004-11-19 2006-05-24 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einer Trocknungseinheit
DE102005056942A1 (de) * 2005-11-29 2007-05-31 BSH Bosch und Siemens Hausgeräte GmbH Wärmetrockner mit Peltier-Wärmepumpe
DE102005057763A1 (de) * 2005-12-02 2007-06-06 BSH Bosch und Siemens Hausgeräte GmbH Thermoelektrisches Modul
DE102005058285A1 (de) * 2005-12-06 2007-06-14 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zum Trocknen von Waschgut
DE102005060041A1 (de) * 2005-12-15 2007-06-21 BSH Bosch und Siemens Hausgeräte GmbH Schaltungsanordnung für ein Peltiermodul
DE102005060040A1 (de) * 2005-12-15 2007-06-21 BSH Bosch und Siemens Hausgeräte GmbH Schaltungsanordnung für ein Peltiermodul
DE102005060355A1 (de) 2005-12-16 2007-06-21 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät mit thermoelektrischer Wärmepumpe
DE102005060673A1 (de) * 2005-12-19 2007-06-21 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrockner mit Peltier-Wärmepumpe
DE102006000708A1 (de) * 2006-01-03 2007-07-05 BSH Bosch und Siemens Hausgeräte GmbH Dichtungsanordnung für eine Wärmetauschervorrichtung
DE102006020578A1 (de) * 2006-05-03 2007-11-08 BSH Bosch und Siemens Hausgeräte GmbH Schaltungsanordnung und Verfahren zum Betreiben eines Peltier-Moduls einer Wärmepumpe eines Hausgeräts
DE102006020579A1 (de) * 2006-05-03 2007-11-08 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und Schaltungsanordnung zum Steuern eines Trock-nungsprozesses eines Hausgeräts zur Pflege von Wäschestücken
DE102006026251A1 (de) * 2006-06-06 2007-12-13 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung und Verfahren zum Trocknen von Waschgut
DE102006042991A1 (de) * 2006-09-13 2008-03-27 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung und Verfahren zum Trocknen von Waschgut mit einer Wärmepumpe und einem Wärmetauscher
DE102006051504A1 (de) 2006-10-31 2008-05-08 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben eines Hausgeräts zur Pflege von Wäschestücken
DE102006051505A1 (de) * 2006-10-31 2008-05-08 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben eines Hausgeräts zur Pflege von Wäschestücken
WO2008077838A1 (fr) * 2006-12-25 2008-07-03 Arcelik Anonim Sirketi Machine à laver/sèche-linge
US8365539B2 (en) 2010-02-12 2013-02-05 Massachusetts Institute Of Technology System and method for thermal process including a thermoelectric heat pump and internal heat exchanger
DE102010034716A1 (de) * 2010-08-18 2012-02-23 Etimex Technical Components Gmbh Verfahren und Vorrichtung zum Betreiben einer wasserführenden Maschine
WO2012089514A1 (fr) * 2010-12-27 2012-07-05 Arcelik Anonim Sirketi Lave-vaisselle comprenant un module thermoélectrique
TR201106328A1 (tr) * 2011-06-27 2013-01-21 Arçeli̇k Anoni̇m Şi̇rketi̇ Termoelektrik ısı pompası içeren bir çamaşır kurutucu.
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
US10151060B2 (en) 2015-11-24 2018-12-11 Water-Gen Ltd Steam compression dryer

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US3036383A (en) * 1958-08-26 1962-05-29 Philco Corp Drying apparatus
DE6926182U (de) 1969-07-01 1969-12-04 Christian Schneider Waeschetrockner
DE2914859C2 (de) 1979-04-12 1986-11-06 Bauknecht Hausgeräte GmbH, 7000 Stuttgart Wäschetrockner
DE3935415A1 (de) 1989-10-24 1991-04-25 Bosch Siemens Hausgeraete Haushalt-waeschetrockner
JPH0857194A (ja) * 1994-08-26 1996-03-05 Matsushita Electric Ind Co Ltd 除湿型電気衣類乾燥機
US5724750A (en) 1995-11-16 1998-03-10 Burress; Vergel F. Clothes dryer with Peltier effect heating, infrared heating, and vacuum drying capabilities
DE19743509A1 (de) 1997-10-01 1999-04-08 Bosch Siemens Hausgeraete Haushalt-Wäschetrockner mit einem Wäschefeuchtigkeit abführenden Prozeßluft-Kreis
DE19747675A1 (de) 1997-10-29 1999-05-06 Aeg Hausgeraete Gmbh Verfahren zum Herstellen eines luftgekühlten Gegenstrom-Wärmetauschers für einen Wäschetrockner und danach hergestellter Wärmetauscher
DE19904993C2 (de) * 1999-02-08 2003-04-17 Miele & Cie Kondensationswäschetrockner
DE20101641U1 (de) * 2001-01-29 2002-06-06 AKG-Thermotechnik GmbH & Co. KG, 34369 Hofgeismar Kondensations-Wäschetrockner und dafür geeigneter Kondensations-Wärmeaustauscher

Also Published As

Publication number Publication date
DE50306006D1 (de) 2007-02-01
EP1342828A2 (fr) 2003-09-10
EP1342828A3 (fr) 2004-12-01
DE20202782U1 (de) 2002-04-25
ATE348909T1 (de) 2007-01-15

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