EP1974088B1 - Appareil menager pour nettoyer des vetements - Google Patents

Appareil menager pour nettoyer des vetements Download PDF

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Publication number
EP1974088B1
EP1974088B1 EP06830405.4A EP06830405A EP1974088B1 EP 1974088 B1 EP1974088 B1 EP 1974088B1 EP 06830405 A EP06830405 A EP 06830405A EP 1974088 B1 EP1974088 B1 EP 1974088B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
process air
domestic appliance
container
appliance 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.)
Not-in-force
Application number
EP06830405.4A
Other languages
German (de)
English (en)
Other versions
EP1974088A1 (fr
Inventor
Klaus Grunert
Kai Nitschmann
Günter Steffens
Andreas Stolze
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 PL06830405T priority Critical patent/PL1974088T3/pl
Publication of EP1974088A1 publication Critical patent/EP1974088A1/fr
Application granted granted Critical
Publication of EP1974088B1 publication Critical patent/EP1974088B1/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 
    • D06F58/22—Lint collecting arrangements
    • 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
    • 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 
    • D06F58/24—Condensing arrangements

Definitions

  • the invention relates to a household appliance for the care of laundry items, which has a container for receiving laundry items.
  • the container is arranged in a process air duct of the domestic appliance, wherein process air flowing through the process air duct also flows through the container.
  • the domestic appliance comprises a first heat exchanger, which is coupled to the process air guide and is designed for dehumidifying the process air emerging from the container.
  • process air duct encompasses both a closed process air cycle and an open process air duct.
  • domestic appliance for the care of laundry includes any such device is set up for drying laundry, both an exhaust air dryer, in which the process air is passed in an open process air guidance after contact with the laundry to the outside, as well Recirculating air dryer, in which the process air is guided in a closed process air cycle, are included.
  • the process air guide should in particular include all air ducts and components through which process air flows during operation.
  • a household appliance designed as household laundry appliance known This has a fan to produce within a guide a process air flow, which is brought in a drying room in contact with the laundry to be dried to absorb moisture.
  • the domestic appliance includes means for introducing and discharging a liquid into or out of a portion of the process air duct.
  • the domestic appliance has a control which is designed such that in a cleaning phase when the fan is switched off, a section of the process air guide is separated by means of a closing device and flooded at least partially with a liquid for a certain period of time, which at the end of the cleaning phase flows out of the flooded Section of the process air duct is removed.
  • a heat exchanger may be arranged to condense moisture contained in the process air, at which lint and impurities have settled, which are to be removed by the flooding.
  • WO 2005/080896 A1 and DE 43 07 372 A1 each discloses a household appliance for the care of laundry, which has a heat pump with a working fluid circuit.
  • the household appliance according to the invention for the care of laundry items has a container for receiving laundry items, in particular a drum, which is arranged in a process air guide.
  • the container is connected to the process air duct in such a way that the process air flowing through the process air duct also flows through the container.
  • the domestic appliance comprises a first heat exchanger which is coupled to the process air guide and designed for dehumidifying the process air emerging from the container.
  • An essential idea is that an additional heat exchanger for lint filtering is arranged in the process air duct.
  • the additional heat exchanger cools the process air flowing through it slightly and causes condensation in the process air to a slight extent, but only as much as useful for binding fine lint, which entrains the process air and which in particular provided by a known, before the additional heat exchanger conventional lint filter can not be collected is required.
  • the additional heat exchanger is arranged in the direction of the process air flow in front of the means for dehumidifying the process air.
  • cooling elements of the working medium circuit of the domestic appliance are arranged adjacent to an outer side of the additional heat exchanger.
  • the additional heat exchanger is coupled directly to the working fluid circuit or arranged in this.
  • the additional heat exchanger is arranged positively and / or non-positively on the cooling elements.
  • this enables effective cooling and, on the other hand, a mechanically stable connection.
  • the additional heat exchanger with a biasing device, which may be in particular a spring element, mechanically connected.
  • This biasing device is arranged and configured such that it presses the additional heat exchanger to the cooling elements.
  • a positionally stable arrangement of the additional heat exchanger in the process air duct is achieved and, moreover, good contact with the cooling elements is produced.
  • the additional heat exchanger can be removed in a low-cost manner and quickly from the household appliance and used again. A cleaning process is therefore possible with very little effort.
  • the positive connection always ensures sufficient contact after a replacement of the additional heat exchanger in the domestic appliance.
  • a lint filter is arranged in the direction of the process air flow upstream of the additional heat exchanger.
  • a relatively low cooling capacity suffices in order to achieve a low condensation of the moist process air from the drum filled with wet laundry between the exit from the drum and the entry into the first heat exchanger, but sufficient to catch the lint.
  • the additional heat exchanger is arranged and fastened such that it can be removed without the use of a tool from the domestic appliance. This allows an uncomplicated removal and cleaning by an operator of the household appliance; an intervention of a specially trained and equipped with appropriate tool specialist in the context of a costly maintenance measure is no longer necessary.
  • the domestic appliance is designed as a tumble dryer.
  • the non-fixed obstruction of the additional heat exchanger Due to the non-fixed obstruction of the additional heat exchanger in the household appliance easy and uncomplicated removal of the additional heat exchanger from the domestic appliance and in particular from the working fluid circuit is possible. Nevertheless, in particular the positive and / or non-positive connection with the working fluid circuit allows a stable positioning.
  • the non-fixed obstruction of the additional heat exchanger has a significant advantage, since the additional heat exchanger must be rinsed at regular intervals by a liquid, especially water, and it is easy to remove and thus can be easily and easily cleaned.
  • FIG Fig. 1 In a schematic block diagram in FIG Fig. 1 are the essential elements for present explanation of a household appliance 1 for the care of laundry items shown.
  • the household appliance 1 for the care of items of laundry is designed as a tumble dryer 1.
  • the tumble dryer 1 is designed as a circulating air dryer and comprises a container 2 for receiving laundry items.
  • the container 2 is arranged in a process air duct 3, which is designed as a process air circuit 3 in the exemplary embodiment. In this case, the process air flowing in the process air circuit 3 also flows through the container 2.
  • the fed through the container 2 dry air or process air is before entering the drum or in the container 2 by a second heat exchanger 5, which serves as a condenser 5 for circulating in a working fluid circuit 4 working equipment, and as required by an additional not shown heater heated and after exiting the container 2 for condensation of moisture contained in the process air through a first heat exchanger 6, which serves as an evaporator 6 for circulating in the working fluid circuit 4 working means cooled.
  • the process air is driven by a fan 11 and flows in the direction of the arrows through the process air circuit 3. Within the container 2, the heated process air comes into contact with the laundry to be dried and absorbs moisture.
  • the working medium circuit 4 is thermally coupled to the process air circuit 3 via the condenser 5, the evaporator 6 and an additional heat exchanger 9 to be described below, which has the function of an additional evaporator 9.
  • the working fluid circuit 4 forms with the condenser 5, the evaporator 6, the additional heat exchanger 9 and a compressor 7 and a throttle 8, a heat pump 4, 5, 6, 7, 8, 9.
  • the condenser 5 is arranged downstream of the compressor 7 and thus arranged on the pressure side ,
  • the condenser 5 nach- and the evaporator 6 upstream throttle 8 in the working fluid circuit 4 causes a necessary for evaporation of the working fluid pressure gradient between the condenser 5 and the evaporator 6.
  • the additional heat exchanger 9 is arranged. It is designed for lint filtering and positioned in the direction of the process air flow upstream of the first heat exchanger 5 and the second heat exchanger 6. It cools the process air flowing through it slightly and causes condensation to a small degree in the process air, but only as much as for binding fine lint, which entrains the process air from the drum 2 and in the process air circuit 3 of a known per se the additional heat exchanger 9 provided lint filter 10 can not be collected is required.
  • FIG. 2 is a sectional view showing the arrangement of the additional heat exchanger 9 in the process air circuit 3.
  • Cooling elements 13, 14, 15 and 16 are positioned on a first outer side 91 of the additional heat exchanger 9.
  • the first outer side 91 faces away from the flowing process air during operation.
  • the cooling elements 13 to 16 are parts of a laid as a meander and traversed by the working medium pipe section.
  • the additional heat exchanger is composed of a plurality of plates 90, which are stacked perpendicular to the plane of the drawing leaving gaps for the process air 3 flowing in the direction of the arrows.
  • FIG. 2 shows such a plate 90.
  • the protruding on the plate 90 structures 93 form channels or guides for the process air and enlarge the surfaces on which lint can accumulate.
  • the additional heat exchanger 9 is pressed against the cooling elements 13 to 16 by a spring element 12 bearing against the second outer side 92 opposite the first outer side 91 with the first outer side 91.
  • the spring element 12 is supported or fixed, for example, on an inner wall of a channel of the process air circuit 3 and generates a biasing force, which presses the additional heat exchanger 9 to the cooling elements 13 to 16.
  • the additional heat exchanger 9 is positively and non-positively connected to the cooling elements 13 to 16, whereby an effective thermal coupling is ensured.
  • the plates are made of aluminum or another good thermal conductive material.
  • the additional heat exchanger 9 is cooled by the working medium flowing through the cooling elements 13 to 16, so that it causes a small degree of condensation in the process air flowing past. Fine lint, which are bound by condensate thus formed at the additional heat exchanger 9, deposited on the plates 90 from.
  • the additional heat exchanger 9 is due to its just described design can be removed easily from the process air circuit 3 and thus can be easily cleaned to remove the deposited on the plates 90 fine lint.
  • the additional heat exchanger 9 thus prevents easy and reliable contamination of the following in the process air circuit 3 on him evaporator 6, which is structured relatively fine according to the prior art and thus relatively prone to contamination by fluff.

Landscapes

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

Claims (8)

  1. Appareil ménager destiné à l'entretien de linge, comprenant une cuve (2) destinée à loger du linge, un dispositif de guidage d'air de processus (3) qui est relié à la cuve (2), de l'air de processus circulant à travers la cuve (2), comprenant un premier échangeur de chaleur (6), lequel est couplé au dispositif de guidage d'air de processus (3) et est réalisé pour déshumidifier l'air de processus sortant de la cuve (2), et comprenant un deuxième échangeur de chaleur (5), lequel est disposé dans le dispositif de guidage d'air de processus (3) pour échauffer l'air de processus, et comprenant une pompe à chaleur (4, 5, 6, 7, 8, 9) munie d'un circuit de substance active (4), dans laquelle pompe à chaleur (4, 5, 6, 7, 8) le premier échangeur de chaleur (6) forme un évaporateur (6) et le deuxième évaporateur de chaleur (5) forme un condenseur (5), caractérisé en ce qu'un échangeur de chaleur supplémentaire (9) est disposé dans le dispositif de guidage d'air de processus (3) pour le filtrage de peluches, des éléments de refroidissement (13 à 16) du circuit de substance active (4) étant adjacents à un côté extérieur (91) de l'échangeur de chaleur supplémentaire (9) et l'échangeur de chaleur supplémentaire (9) étant relié mécaniquement à un dispositif de précontrainte (11), notamment à un élément à ressort (11), lequel dispositif de précontrainte presse l'échangeur de chaleur supplémentaire (9) sur les éléments de refroidissement (13 à 16).
  2. Appareil ménager selon la revendication 1, dans lequel l'échangeur de chaleur supplémentaire (9), dans le sens du courant de l'air de processus, est disposé devant le premier échangeur de chaleur (6).
  3. Appareil ménager selon l'une quelconque des revendications précédentes, dans lequel l'échangeur de chaleur supplémentaire (9) est lié au circuit de substance active (4) à l'aide d'une fonction en tant qu'évaporateur supplémentaire (9).
  4. Appareil ménager selon la revendication 3, dans lequel l'échangeur de chaleur supplémentaire dans le circuit de substance active (4) est monté en série par rapport à l'évaporateur (6).
  5. Appareil ménager selon l'une quelconque des revendications précédentes, dans lequel l'échangeur de chaleur supplémentaire (9) est adjacent aux éléments de refroidissement (13 à 16) par adhérence de forme et/ou de force.
  6. Appareil ménager selon l'une quelconque des revendications précédentes, dans lequel un filtre à peluches (10), dans le sens du courant de l'air de processus, est disposé devant l'échangeur de chaleur supplémentaire (9).
  7. Appareil ménager selon l'une quelconque des revendications précédentes, dans lequel l'échangeur de chaleur supplémentaire (9) peut être retiré sans l'utilisation d'un outil.
  8. Appareil ménager selon l'une quelconque des revendications précédentes, lequel est réalisé comme sèche-linge (1).
EP06830405.4A 2005-12-29 2006-12-06 Appareil menager pour nettoyer des vetements Not-in-force EP1974088B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06830405T PL1974088T3 (pl) 2005-12-29 2006-12-06 Urządzenie domowe do pielęgnacji sztuk prania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005062940A DE102005062940A1 (de) 2005-12-29 2005-12-29 Hausgerät zur Pflege von Wäschestücken
PCT/EP2006/069359 WO2007077084A1 (fr) 2005-12-29 2006-12-06 Appareil menager pour nettoyer des vetements

Publications (2)

Publication Number Publication Date
EP1974088A1 EP1974088A1 (fr) 2008-10-01
EP1974088B1 true EP1974088B1 (fr) 2015-06-03

Family

ID=37728466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06830405.4A Not-in-force EP1974088B1 (fr) 2005-12-29 2006-12-06 Appareil menager pour nettoyer des vetements

Country Status (6)

Country Link
US (1) US7866057B2 (fr)
EP (1) EP1974088B1 (fr)
KR (1) KR101253803B1 (fr)
DE (1) DE102005062940A1 (fr)
PL (1) PL1974088T3 (fr)
WO (1) WO2007077084A1 (fr)

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US10544539B2 (en) 2017-02-27 2020-01-28 Whirlpool Corporation Heat exchanger filter for self lint cleaning system in dryer appliance
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Also Published As

Publication number Publication date
KR20080081936A (ko) 2008-09-10
PL1974088T3 (pl) 2015-11-30
KR101253803B1 (ko) 2013-04-12
EP1974088A1 (fr) 2008-10-01
US7866057B2 (en) 2011-01-11
WO2007077084A1 (fr) 2007-07-12
DE102005062940A1 (de) 2007-07-05
US20090223077A1 (en) 2009-09-10

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