EP1659207B1 - Sèche-linge à condensation - Google Patents

Sèche-linge à condensation Download PDF

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Publication number
EP1659207B1
EP1659207B1 EP05109625A EP05109625A EP1659207B1 EP 1659207 B1 EP1659207 B1 EP 1659207B1 EP 05109625 A EP05109625 A EP 05109625A EP 05109625 A EP05109625 A EP 05109625A EP 1659207 B1 EP1659207 B1 EP 1659207B1
Authority
EP
European Patent Office
Prior art keywords
condensate collecting
collecting container
electrodes
laundry dryer
condensate
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
EP05109625A
Other languages
German (de)
English (en)
Other versions
EP1659207A1 (fr
Inventor
Thomas Ludenia
Guido Sattler
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1659207A1 publication Critical patent/EP1659207A1/fr
Application granted granted Critical
Publication of EP1659207B1 publication Critical patent/EP1659207B1/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 
    • D06F58/24—Condensing 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58—Indications or alarms to the control system or to the user
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/62—Stopping or disabling machine operation
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers

Definitions

  • the invention relates to a condensation dryer with a condensate collection container, which is designed as a drawer and is removably disposed in a receiving chamber in the upper region of the tumble dryer, and a device for monitoring a level using a switching arrangement comprising at least two electrodes arranged at different heights.
  • the invention relates to a condensation dryer comprising a laundry drum receiving the dry material, two separate systems for the cooling air and circulating process air, each with a fan and air ducts that are tightly sealed against each other, an electric heater for heating the process air and a condenser in which the process air is cooled and condenses the moisture absorbed by the dry material and a condensate collecting tray with a pump that conveys the condensed water into a condensate collection tank.
  • a similar in this kind monitoring device is in the DE 197 01 225 B4 described.
  • the sensor device is part of the leak water drainage device, via which the overflowing condensate when the condensate collector is completely filled flows back into the collecting container and causes a measurable resistance change at the electrodes.
  • the sensor device is set so that it responds only at a predefined amount of liquid effluent leak water and provides the internal control useful and evaluable information. To ensure their function, a series of coordinated measures is required in this monitoring device, which are associated with a corresponding effort.
  • the arrangement of the electrodes in the leak water discharge line is problematic with respect to the installation and the wiring. Another disadvantage is that the electrodes are difficult to access when cleaning becomes necessary.
  • the two devices described above has the common drawback that the switching arrangements are sensitive to interference and do not work with the necessary reliability in long-term operation.
  • a switching arrangement suitable for determining the height of a liquid level using a plurality of electrodes arranged one above another is disclosed in US Pat DE 40 42 257 A1 described. According to the device which can be used in geohydraulics, two electrodes each are bridged by an ohmic resistance and the change in the total resistance is detected and evaluated as a measured value when the fill level changes.
  • the invention has for its object to provide a suitable for tumble dryer for detecting the level in the condensate tank suitable device that is further improved and extended in its function to the state of the art.
  • a condensation dryer with a condensate collection container which is designed as a drawer and in a receiving chamber in the upper region of the tumble dryer is removably arranged, and a device for monitoring a level using a switching arrangement comprising at least two electrodes arranged at different heights, characterized in that the switching arrangement of the at least two electrodes arranged at different heights and at least two ohmic resistors connected in series, wherein always two spatially adjacent electrodes are bridged by an ohmic resistance, is set up to monitor the level in the condensate collection container and has a part which is an integral part of the condensate collection container.
  • the switching arrangement for monitoring the filling level in the condensate collecting tank consists essentially of at least two electrodes arranged at different heights and a resistance network, with always two spatially adjacent electrodes being bridged by an ohmic resistance.
  • a part of the switching arrangement is fixedly connected to the condensate collecting tank, preferably the condensate collecting tank is manufactured in one piece with parts of the switching arrangement.
  • the switching arrangement With the inventive switching arrangement, a presence control and level monitoring are realized.
  • the switching arrangement is less susceptible to interference, their functionality can be ensured even during long-term operation of the tumble dryer.
  • the electrodes arranged at different levels gradually submerge into the condensate.
  • the intermediate ohmic resistances are bridged, the current in the monitoring circuit increases.
  • the rising current level as a result of a change in resistance current flow is evaluated within the device and generates a level-dependent analog signal, which is displayed in a suitable manner.
  • An analog display in the display or via a series of LEDs is particularly well suited to make the information content of the operator recognizable.
  • the level is measured in several stages, depending on the number of electrodes used and the vertical distance between the electrodes. The fineness of the detectable level levels increases with the number of electrodes used. With the use of two electrodes, only the maximum level can be detected.
  • the displays provide the operator with information that is better than the state of the art, to which he can respond at his own discretion. With the use of three to four electrodes for monitoring the level, a display which is completely sufficient in terms of significance can be realized for practical operation.
  • the change in the level as a function of time is detected. From the measured data can be concluded on the progress of the drying process. It is intended to evaluate these time-dependent measurement data for controlling the drying process.
  • FIG. 1 shows in simplified and schematic form a condensate collector 4 with integrated therein switching arrangement.
  • the condensate collection container 4 is designed as a drawer and accommodated in a receiving chamber 5 in the upper region of the tumble dryer 1 for the operator easily accessible. By a simple pushing movement of the condensate collection 4 can be removed for the purpose of emptying.
  • the receiving chamber 5 for the removable condensate collection 4 has to protect against leaking water on the bottom side a drain 17 with connected line hose 18, is passed over the overflowing water back into the drip tray.
  • condensate is supplied by means of a condensate pump, not shown, from a bottom side disposed below the condenser collecting tray via a feed line to the condensate collection tank 4.
  • Condenser, drip tray and the delivery line are also not shown in the figure for the sake of simplicity.
  • the consisting of plastic condensate tank 4 has on the back of two contact poles 10, which in completely imported condensate tank 4 with corresponding Mating contact poles 13 are electrically connected in the receiving chamber 5 of the condensate collection container 4. Via the contacts 10, 13, the switching arrangement is supplied by the electronic control device 7 with a supply voltage.
  • the arrangement of the contacts 10, 13 in the rear wall of the condensate collection container 4 and in the receiving chamber 5 has the advantage that no additional measures for contact protection must be taken.
  • Electrodes 6 Emerging inside are in the rear wall of the condensate collection container 4 a plurality of superimposed electrodes 6 are provided which are electrically connected with series-connected resistors 15 so that always two electrodes 6 are bridged by an ohmic resistor 15.
  • the electrodes 6 and the resistors 15 are incorporated by the manufacturing process of the condensate collection container 4 in these.
  • the switching arrangement is operated with alternating voltage or with direct voltage in a periodic cycle.
  • the circuit is closed with proper insertion of the condensate collection container 4 via the two pairs of contacts 10, 13 and it flows when the tumble dryer 1 an alternating current, which is determined in its height by the applied voltage and the series connection of the resistors 15. This minimum flow is the signal for the presence of the condensate collection container 4 in the intended position, the clothes dryer 1 is thus ready for operation and the drying program can be started.
  • the presence of the condensate collecting container 4 and its correct positioning in the receiving chamber 5 are indicated to the operator by the light emitting diode 9 arranged at the bottom in a vertical row.
  • the electrodes 6 arranged at different levels are successively contacted.
  • the intermediate ohmic resistors 15 are bridged, the current in the monitoring circuit increases.
  • the increasing in level 12 as a result of a change in resistance in stages current flow is evaluated within the device and generates a level 12 dependent analog signal, which is displayed in a suitable manner.
  • An analog display 19 in the display 3 or via a series of LEDs 8 is particularly well suited to make the information content of the operator recognizable.
  • the light emitting diodes 9 can be switched via the internal control or are directly integrated into the switching arrangement.
  • the light emitting diodes 9 are arranged one above the other in the control panel 2 in a row in the immediate vicinity of the condensate collection container 4.
  • the functional assignment of the optical display elements 8 to the level 12 in the condensate collection container 4 results for the operator in obvious way by itself from the spatial proximity of the light emitting diodes 8 to the condensate collection container. 4
  • the controller Upon reaching a predefined maximum level 12, the controller shuts off the running drying program.
  • This circuit measure is displayed in the control panel 2 of the dryer 1 of the operator for display and / or triggers an acoustic signal.
  • the flashing lights of all LEDs 8 signals the program interruption.
  • FIG. 2 Another embodiment of the inventive monitoring device is in FIG. 2 shown. Notwithstanding the embodiment described above, only the electrodes 6 are integrated in the condensate collecting tank 4. Such a condensate collector 4 is easier to manufacture.
  • the resistor network 15 is mounted on the stationary side of the clothes dryer 1.
  • the filling level monitoring and display is carried out analogously in the mode of operation described above. Unlike in the first example flows in the circuit with the tumble dryer 1 always a minimum current. As a presence control for the condensate collection 4, the current increase, which is effected by the fact that the insertion of the condensate collection container 4, a first resistor 16 is bridged via a third additional contact 11.
  • the level 12 in the condensate collection container 4 is preferably indicated by analog optical graphics 19 on a display 3 or by a plurality of light-emitting diodes 8 and 9 arranged one above the other in the immediate vicinity of the condensate collection container 4.
  • FIG. 3 shows a control panel 2 with four light emitting diodes 8 and 9, which are arranged vertically one above the other in the control panel 2.
  • three upper light emitting diodes 8 three different water levels 12 are displayed. When completely filled condensate collecting 4 all LEDs light 8 and 9 and it will output an additional audible signal.
  • FIG. 4 shows a control panel 2 with an exemplary display.
  • the water levels 12 are shown in the form of a bar graph 19. In the example, three different levels 12 are mapped.
  • the height graduation of the bars corresponds to the constant distances of the electrodes 6 in the condensate collector 4.
  • the first two bars are filled in color, which in conjunction with the in FIG. 1 shown arrangement of the electrodes 6 means that the condensate collecting tank 4 is filled at least two-thirds.
  • the electrodes 6 may be positioned so that the first display is output at a level 12 that is near the maximum level. The ad would then be interpreted as a warning.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Inorganic Insulating Materials (AREA)
  • Window Of Vehicle (AREA)
  • Resistance Heating (AREA)

Claims (10)

  1. Sèche-linge à condensation (1) comprenant un récipient collecteur de condensat (4), qui est conçu sous forme de tiroir (4) et est disposé de façon extractible dans une chambre de réception (5) dans la zone supérieure du sèche-linge (1), et un dispositif (6, 7, 10 à 16) pour le contrôle d'un niveau de remplissage avec l'utilisation d'un dispositif de commutation (6, 10 à 16) comprenant au moins deux électrodes (6) disposées à une hauteur différente, caractérisé en ce que le dispositif de commutation (6, 10 à 16) comprend les au moins deux électrodes (6) disposées à une hauteur différente et un réseau de résistances comportant au moins deux résistances (15, 16) ohmiques montées en série, deux électrodes (6) voisines dans l'espace étant toujours shuntées par une résistance (15, 16) ohmique, est aménagé dans le récipient collecteur de condensat (4) pour le contrôle du niveau de remplissage (12) et présente une partie (6, 10, 11, 15) comprenant au moins les électrodes (6), lequel est un composant fixe du récipient collecteur de condensat (4).
  2. Sèche-linge à condensation (1) selon la revendication 1, caractérisé en ce que le récipient collecteur de condensat (4) est une partie en matière synthétique, et en ce que le récipient collecteur de condensat (4) est fabriqué d'une seule pièce avec des parties du dispositif de commutation (6), (15) pour le contrôle du niveau de remplissage (12).
  3. Sèche-linge à condensation (1) selon la revendication 1, caractérisé en ce que les électrodes (6) sont intégrées dans le récipient collecteur de condensat (4).
  4. Sèche-linge à condensation (1) selon la revendication 1, caractérisé en ce que les électrodes (6) et le réseau de résistances (15) sont intégrés dans le récipient collecteur de condensat.
  5. Sèche-linge à condensation (1) selon la revendication 1, caractérisé en ce que le récipient collecteur de condensat (4) présente des pôles de contact (10) électriques qui correspondent à des pôles inverses (13) dans la chambre de réception (5) du récipient collecteur de condensat (4), la liaison électrique des contacts (10), (13) étant établie dans le récipient collecteur de condensat (4) avec ceux disposés dans le logement (5) uniquement lorsque le récipient collecteur de condensat (4) est complètement rentré.
  6. Sèche-linge à condensation (1) selon les revendications 3 et 5, caractérisé en ce que deux pôles de contact (10) sont intégrés dans le récipient collecteur de condensat (4).
  7. Sèche-linge à condensation (1) selon les revendications 4 et 5, caractérisé en ce que trois pôles de contact (10) et un pôle de contact (11) supplémentaire sont intégrés dans le récipient collecteur de condensat (4), un premier pôle de contact (10) et le pôle de contact (11) supplémentaire étant shuntés avec une basse impédance.
  8. Sèche-linge à condensation (1) selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que plusieurs diodes électroluminescentes (8, 9), placées avantageusement verticalement les unes au-dessus des autres et à proximité du récipient collecteur de condensat (4), sont disposées pour l'affichage du niveau de remplissage (2) dans le cache de commande (2) du sèche-linge (1).
  9. Sèche-linge à condensation (1) selon la revendication 8, caractérisé en ce que le dispositif de commutation pour le contrôle du niveau de remplissage (12) dans le récipient collecteur de condensat (4) est relié aux diodes électroluminescentes (8) dans le cache de commande (2) de telle sorte que ces diodes s'allument les unes après les autres en fonction de l'augmentation du niveau de remplissage (12) dans le récipient collecteur de condensat (4).
  10. Sèche-linge à condensation (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de commutation pour le contrôle du niveau de remplissage (12) dans le récipient collecteur de condensat (4) est relié à un système d'analyse (7) intelligent qui génère des signaux de commande et/ou d'utilisateur dépendants du niveau du remplissage (12).
EP05109625A 2004-11-19 2005-10-17 Sèche-linge à condensation Not-in-force EP1659207B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004055941.4A DE102004055941B4 (de) 2004-11-19 2004-11-19 Kondensations-Wäschetrockner

Publications (2)

Publication Number Publication Date
EP1659207A1 EP1659207A1 (fr) 2006-05-24
EP1659207B1 true EP1659207B1 (fr) 2011-01-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05109625A Not-in-force EP1659207B1 (fr) 2004-11-19 2005-10-17 Sèche-linge à condensation

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EP (1) EP1659207B1 (fr)
AT (1) ATE495299T1 (fr)
DE (2) DE102004055941B4 (fr)

Families Citing this family (16)

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KR20070074119A (ko) * 2006-01-06 2007-07-12 엘지전자 주식회사 스팀발생장치 및 이를 이용한 세탁기
PL1900868T3 (pl) * 2006-09-18 2011-09-30 Electrolux Home Products Corp Nv Suszarka do prania z szufladą wyposażoną w środki czujnika
DE102007062836A1 (de) * 2007-12-27 2009-07-02 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Entsorgen eines Kondensats in einem Hausgerät zur Pflege von Wäschestücken
DE102008048345B4 (de) * 2008-09-22 2011-06-16 Miele & Cie. Kg Kondensations-Wäschetrockner mit Kondensatsammelbehälter
DE102010039552A1 (de) * 2010-08-20 2012-02-23 BSH Bosch und Siemens Hausgeräte GmbH Wäschebehandlungsgerät mit Siebaufnahme und Verfahren zum Betreiben eines Wäschebehandlungsgeräts mit einem Flusensieb
KR101887454B1 (ko) 2012-01-11 2018-08-10 엘지전자 주식회사 필터삽입 감지장치 및 이를 장착한 의류건조기
EP2666903A1 (fr) * 2012-05-23 2013-11-27 Electrolux Home Products Corporation N.V. Séchoir à linge et réservoir de condensat
DE102013225534A1 (de) * 2013-12-11 2015-06-25 BSH Hausgeräte GmbH Überwachungsvorrichtung für einen Flüssigkeits-Sammelbehälter
DE102014204298A1 (de) * 2014-03-10 2015-09-10 BSH Hausgeräte GmbH Trockner mit Spülvorrichtung und Flusendepot sowie Verfahren zu dessen Betrieb
EP3177763A1 (fr) * 2014-08-06 2017-06-14 Arçelik Anonim Sirketi Sèche-linge présentant un ensemble de stockage de condensat amélioré
KR102369584B1 (ko) 2014-12-19 2022-03-03 엘지전자 주식회사 의류처리장치
EP3301217A1 (fr) * 2016-10-03 2018-04-04 Whirlpool Corporation Procédé pour déterminer la quantité d'eau dans un récipient pour sèche-linge, procédé de séchage de vêtements dans un sèche-linge, et sèche-linge utilisant ce procédé
DE102020102261A1 (de) * 2020-01-30 2021-08-05 Miele & Cie. Kg Waschmittelbehälter für ein Reinigungsgerät, Kontaktiervorrichtung, Verfahren und Vorrichtung zum Betreiben eines Reinigungsgeräts und Reinigungsgerät
DE102020114635A1 (de) 2020-06-02 2021-12-02 Vega Grieshaber Kg Feldgerät mit Anzeigemittel zur optischen Wiedergabe von Grenzwerten und Verfahren
KR20220063494A (ko) * 2020-11-10 2022-05-17 삼성전자주식회사 제습장치
CN113445257B (zh) * 2021-07-14 2023-09-26 木卫智能科技(深圳)有限公司 检测电路以及衣物处理设备

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Also Published As

Publication number Publication date
EP1659207A1 (fr) 2006-05-24
ATE495299T1 (de) 2011-01-15
DE502005010833D1 (de) 2011-02-24
DE102004055941A1 (de) 2006-05-24
DE102004055941B4 (de) 2017-05-11

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