EP2710183B1 - Séchoir à capteur d'humidité et procédé permettant de faire fonctionner ledit séchoir - Google Patents

Séchoir à capteur d'humidité et procédé permettant de faire fonctionner ledit séchoir Download PDF

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Publication number
EP2710183B1
EP2710183B1 EP12719726.7A EP12719726A EP2710183B1 EP 2710183 B1 EP2710183 B1 EP 2710183B1 EP 12719726 A EP12719726 A EP 12719726A EP 2710183 B1 EP2710183 B1 EP 2710183B1
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EP
European Patent Office
Prior art keywords
condensation
dryer
sensor
drying
prog
Prior art date
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Not-in-force
Application number
EP12719726.7A
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German (de)
English (en)
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EP2710183A1 (fr
Inventor
Marcus Heyer-Wevers
Harald MOSCHÜTZ
Gudrun Schliecker
Thomas Schneider
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication of EP2710183A1 publication Critical patent/EP2710183A1/fr
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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14Arrangements for detecting or measuring specific parameters
    • D06F34/18Condition of the laundry, e.g. nature or weight
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2101/00User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/02Characteristics of laundry or load
    • D06F2101/04Quantity, e.g. weight
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2101/00User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/14Time settings
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02Characteristics of laundry or load
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02Characteristics of laundry or load
    • D06F2103/04Quantity, e.g. weight or variation of weight
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02Characteristics of laundry or load
    • D06F2103/08Humidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/38Time, e.g. duration
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/52Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to electric heating means, e.g. temperature or voltage
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/58Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/32Control of operations performed in domestic laundry dryers 
    • D06F58/34Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/46Control of the operating time

Definitions

  • the invention relates to a dryer, comprising a drying chamber for receiving items of laundry, a humidity sensor, a control device and a process air duct, in which there is a heater for heating air and a fan, wherein at least one optical dew sensor is arranged as a humidity sensor outside the drying chamber, and a procedure for its operation.
  • a dryer of the type defined above is apparent from the JP 05-184791 A , There, a dryer for drying laundry is described, which is designed as an exhaust air dryer and discharges moisture-laden exhaust air through a pipe. To prevent formation of dew, ie condensate, in the tube, the tube is provided with a sensor for detecting formation of dew. If this sensor detects the formation of dew, it causes a controller of the dryer to dry the pipe for a predetermined period of time.
  • This steam generating device includes a steam generator and a sensor that can measure a predetermined condition in the working dryer, in particular a relative humidity or an optical radiation. It can also be used a plurality of sensors.
  • washer In a tumble dryer (hereinafter abbreviated to "dryer”) wet laundry items are dried by means of warm and dry process air.
  • dryer stands for dryers as such, but also for washer-dryers in which laundry items can also be laundered. Washer dryers are popular because in a device in a space-saving manner, the functions of a washing machine and a. Tumble dryers are combined.
  • a washer-dryer is already provided with a water connection, so that water is not only available for washing laundry, but also for further treatment of laundry items.
  • a drying process is carried out only up to a certain moisture content ("residual moisture") of the laundry items.
  • residual moisture a moisture content of the laundry items.
  • it can be detrimental to the further treatment of the laundry if the drying is carried out for a long time and the laundry contains less moisture than it does when stored under normal ambient conditions in a cabinet; they are then very stiff and can only be folded or ironed poorly.
  • a drying process should only be carried out until a desired residual moisture content of the dried laundry has been reached. A further drying process would lead to unnecessary energy consumption.
  • the laundry is too dry during the subsequent ironing, a new moistening of the laundry items would be necessary.
  • the moisture content of laundry items usually has to be measured by a suitable method.
  • the determination of the moisture of the items of laundry can take place in various ways, for example by measuring electrical properties which are dependent on the moisture of the items of laundry, in particular the electrical conductivity of the items of laundry.
  • two electrodes can be placed as moisture sensors in a drying chamber of the dryer, which is usually designed as a drum, that they contact the wet laundry items. An electrical voltage is then applied to the electrodes and the current intensity or the electrical conductance between the electrodes is measured. If the measured current intensity or the measured electrical conductance falls below a respectively predetermined threshold value, this can be concluded that a desired residual moisture level has been reached, so that a drying process can be ended.
  • thermoelectric process air is measured in particular at suitable locations in the process air duct, for example in front of and behind a heat exchanger, at which the moisture contained in the wet laundry items and carried with the moist, warm process air from the drying chamber condenses.
  • the known methods also make it possible to estimate the heat energy required for drying, in particular if the quantity of items to be dried can be clearly indicated.
  • the DE 10 2006 053 274 A1 discloses a method for determining the amount of charge of laundry in a cargo space with air outlet of a clothes dryer, the absolute humidity in the air outlet from the cargo space is measured by means of a humidity sensor and the amount of charge in the cargo compartment by determining the maximum value and / or the course of the absolute humidity in the air outlet is determined from the hold. As soon as the amount of laundry and, if appropriate, other values such as the residual moisture are determined, the controller can stop the drying process with regard to time, air supply and possibly air temperature.
  • the US 2011/0041562 A1 describes a laundry treating appliance having at least one sensor operably coupled to the treating chamber and emitting at least one signal indicative of the humidity within the treating chamber and used in the controller for starting a moisture reducing device in accordance with a moisture reduction program.
  • the internal humidity sensors can be located anywhere in the process air duct, eg in the treatment chamber, in the supply air pipe, in the child safety extraction opening or in the exhaust air pipe. Any type of sensor capable of determining relative or absolute humidity, such as infrared sensors, capacitive sensors, resistive sensors, and electrical conductivity sensors, can be used.
  • the sensors used in these methods have disadvantages.
  • the sensor When using conductivity sensors, the sensor is not galvanically decoupled from the evaluating electronics, so that problems may arise here due to possible coupling.
  • Temperature sensors eg NTC resistors
  • adhering impurities lint, lime, etc.
  • an association between measured temperature values and a drying progress for example the moisture content of the laundry, difficult.
  • a dryer and in particular a washer-dryer, has surfaces on which moisture can precipitate on contact with moist, warm process air. It can thus come to a dewing of different surfaces associated with the moist, warm process air.
  • the JP 5 184 791 A discloses a clothes dryer with a dew condensation device, wherein a sensor for detecting a condensation in a part of the exhaust pipe is arranged. In this case, the moisture is detected in the exhaust pipe by means of the sensor arranged in the exhaust pipe.
  • the controller when the value measured by the sensor exceeds a constant value, performs a dew condensation prevention operation for a certain time.
  • the DE 10 2005 016 640 A1 describes a fiber optic sensor device for detecting condensation and / or for temperature measurement with a light source, a light emitting fiber connected to the light source, a light receiving fiber and a light detector connected to the light receiving fiber, and an optically transparent sensor head connected to light transmitting fiber and light receiving fiber.
  • a first and a second hollow curved interface are formed and arranged such that from the first hollow curved interface the light coupled via the light transmitting fiber into the sensor element is reflected onto the second hollow curved interface and from the second hollow curved interface the reflected light in the light receiving fiber is extracted.
  • the object of the invention was to provide a dryer and a method for its operation with which a drying method based on the determined residual moisture in laundry items can be better controlled.
  • a point in time for the termination of a drying process should be able to be determined on the basis of the determined residual moisture content.
  • the washer-dryer should preferably be easy to operate and have a simple construction.
  • the invention thus relates to a dryer, comprising a drying chamber for receiving laundry items, a humidity sensor, a control device and a process air duct, in which there is a heater for heating air and a fan, wherein arranged as a humidity sensor outside the drying chamber at least one optical Betauungssensor is. Also, in the control device, a relationship between a Betauungsgrad the Betauungssensors at a time t s in a drying program and a duration t prog of the drying program deposited.
  • outside the drying chamber means, in particular, a space such as e.g. a container or pipe in which a wall of the room can come into contact with moist, warm process air and thereby be dewatered with moisture.
  • a dew point sensor is a sensor whose physical properties are due to the wetting of a surface of the sensor with a liquid, in particular an aqueous liquid, e.g. a condensation with water, change.
  • the physical properties may include, for example, electrical or optical properties. In the latter case, it is an optical condensation sensor. In any case, it does not matter that a dew sensor actually measures the dew of any surface or the like, but that the dew sensor makes a measurement using condensation on its own surface or a certain portion thereof.
  • the at least one dewing sensor is an optical dewing sensor.
  • the dryer according to the invention it is particularly advantageous if it has points at which condensation of a condensation sensor can be measured particularly well.
  • a relationship between a degree of condensation of the dewing sensor at a time t s in a drying program and a duration t prog of the drying program is stored in the control device of the dryer.
  • the measurement of the time t and thus the reference point for the time t s for example, the turning on of the dryer and in particular the heater, but also the achievement of a predetermined temperature value.
  • the load of laundry items may be predetermined by a user of the dryer or measured automatically in a suitable manner in the dryer, for example, based on the weight increase of the drying chamber. For example, a user could manually enter the load on the dryer and thus supply the controller for further processing.
  • the control device is preferably designed such that a duration t prog of a drying program can be determined, so that a drying program can be ended at a desired optimum time.
  • a duration t prog of a drying program can be determined, so that a drying program can be ended at a desired optimum time.
  • the particular for a given drying program duration t prog with a desired drying program duration t is set compared and then causes the control means comprises a this desired drying program time t set enabling end drying program is performed.
  • an initially preset Drying program duration t of a given drying program set to be changed accordingly.
  • the type and amount of laundry to be dried are taken into account.
  • the dryer is therefore designed as a washer-dryer with a tub in which a drum rotatably mounted in the tub is present as a drying chamber.
  • at least one condensation sensor is arranged in a suds tank wall.
  • At least two Betauungssensoren are advantageously arranged in the tub wall.
  • a first dew sensor in a front tub wall, a second beta tower sensor in an upper tub wall and a third dew sensor in a back tub wall are arranged.
  • At least one condensation sensor is arranged above a rotational axis of the drum.
  • the optical dewing sensor used in embodiments of the invention preferably has a first interface and a second interface, wherein the interfaces are formed and arranged relative to one another such that the light coupled into the dew sensor from a light-input fiber strikes the first interface and from there to the first interface second interface is reflected and the reflected light is coupled into a light-emitting fiber.
  • the light-introducing fiber and the light-offcutting fiber which generally comprise glass fibers, are generally connected to another outer surface (hereinafter referred to as "base surface") of the condensation sensor.
  • the light is preferably coupled by the light-introducing fiber perpendicularly to a base surface which is different from the boundary surfaces, and the reflected light is preferably coupled out perpendicular to the base surface.
  • the optical condensation sensor can also have very different shapes.
  • these molds are selected such that the at least one dewing sensor is flush with a tub wall. Then the risk of contamination of the sensor should be particularly low.
  • the material used for the optical condensation sensor are preferably selected such that in the condensation-free state the light coupled into the condensation sensor from the light-introducing fiber is reflected to the light-guiding fiber as far as possible without scattering losses and can be completely detected.
  • the condensation of an optical condensation sensor changes its optical properties. If a light-exposed interface of the optical condensation sensor is dewed, the coupled-in light is no longer completely reflected, but is partially refracted at the interface and emitted outward from the optical condensation sensor. As a result, the light intensity arriving at the light-deflecting fiber decreases, the decrease in intensity being a measure of condensation of the interface of the optical condensation sensor.
  • the optical condensation sensor generally comprises a sensor head, which is preferably made in one piece from a material such as glass or a plastic such as polycarbonate or polymethylmethacrylate.
  • the Lichtein endeavors- and light dissipation fiber, generally namable as optical fibers, connected.
  • the refractive indices of sensor head and optical waveguides are identical in this case.
  • a suitable sensor head advantageously has a volume of 10 to 50 mm 3 and preferably of 20 to 40 mm 3 .
  • the refractive index of the material of the sensor generally depends on the material used, the wavelength of the light used and the temperature. Since the temperature changes in a dryer, a material is preferably selected for the optical condensation sensor whose refractive index is as little as possible dependent on the temperature.
  • the optical properties important for the operation of the optical condensation sensor depend on the temperature depending on the material used, it may be useful for precise measurements to take account of this temperature dependence and to deposit corresponding working curves in the control unit of the dryer.
  • a temperature sensor generally also present in the dryer could be used.
  • a washer dryer is preferably used as the dryer.
  • a washer-dryer has a heat exchanger in which the moisture contained in the moist warm air from the drying chamber can be condensed, the heat exchanger with cooling air, cooling water, or when using a heat pump with a refrigerant of the heat pump operated.
  • heating refers to the air heating (process air) heater located in the process air duct.
  • a washer-dryer generally also has a heater for direct heating of an aqueous liquid, such as a water heater. a wash. This heating, referred to herein as water heating, is generally located in the tub below the drum.
  • a washer-dryer has a water supply system with which water can be passed through a generally existing dispenser tray from which detergent or detergent adjunct portions can be added to the washer-dryer.
  • a washer-dryer generally has a lye drainage system arranged on the bottom of the lye container with a drain pump and, in general, laundry hoppers and / or scooping devices.
  • a washer-dryer in the tub also contains a pressure sensor, which is preferably arranged in a lower region of the tub, so that the pressure of an aqueous liquid present in the tub can be measured.
  • the duration t prog of the drying program for different values of a residual moisture of the laundry items to be achieved is stored in the control device .
  • a time t 0 is determined in the control device, at which the condensation of the condensation sensor has reached a predetermined condensation B 0 , and the duration t prog of the drying program is determined from the time t 0 .
  • control device is configured such that a drying program is terminated after the time t prog has elapsed.
  • a drying program can be designed and carried out such that a user-specified time period for a drying program is maintained.
  • the dryer is designed as a washer-dryer with a tub in which a drum rotatably mounted in the tub is present as a drying chamber.
  • the invention has numerous advantages.
  • the drying process can be followed in a very efficient manner, so that a drying process can be automatically ended when a desired residual moisture content of the laundry items to be dried is reached.
  • a desired drying result can be easily achieved in an energy-efficient manner.
  • the operation of the dryer according to the invention is relatively insensitive to contamination of the sensor, since the sensor can be easily calibrated before each drying process. This is particularly good because the dew sensor is an optical dew point sensor.
  • the invention works particularly well when the dryer is designed as a washer-dryer, in particular when in embodiments of the invention, at least one Betauungssensor is integrated into a suds container wall.
  • the invention will be further explained below with reference to an exemplary dryer shown in the attached drawing.
  • the dryer is designed here as a washer-dryer.
  • Other embodiments than those illustrated are conceivable.
  • the washer-dryer 1 shown in the figure as a dryer has a lye container 3 with a front lye container wall 15, an upper lye container wall 16 and a rear lye container wall 17.
  • a substantially horizontal axis 27 rotatably mounted drum 2 is arranged as a drying chamber in which are to be dried laundry items 4.
  • a front Betauungssensor 10 in the upper tub wall 16 is an upper Betauungssensor 11 and in the rear tub wall 17, a rear Betauungssensor 12 is arranged.
  • the optical Betauungssensoren 10, 11 and 12 are located in an upper part of the tub 3, ie above the substantially horizontally disposed axis of rotation 27.
  • the Betauungssensoren 10, 11 and 12 are respectively via optical fibers 30 with a control unit 26 for the Betauungssensoren, which communicates with a controller 18 of the dryer, connected.
  • an optical fiber 30, not shown here in detail comprises two fibers, a light-guiding fiber for the light transmitted to the respective condensation sensor, and a light-deflecting fiber for the light derived from the respective condensation sensor. For each dew sensor, the difference in the generally wavelength-dependent intensity between incoming and outgoing light is a measure of the dew of the optical dew sensor 10, 11, 12.
  • the tub 3 is otherwise connected via a lye drain line 19 to a drain pump 14 containing an aqueous liquid 28, e.g. in the drying accumulating condensate can dispose of the tub 3 via a sewer line 13 to the outside of the washer dryer.
  • the drum 2 is driven by means of a drive motor 29.
  • the drum 2 is loaded through a filling opening 22 with laundry items 4 to be dried.
  • the washer-dryer 1 is connected via a water supply system 20 to an external water supply, not shown here.
  • the water supply system 20 is connected via a valve 9 with a dispenser 21, from which with the aid of water from the water supply system 20 detergent or Waschosffenportionen can be transported into the tub 3. In the present case, this takes place via a part of a process air channel 5 and a sleeve 23.
  • the air heated by a heater 7 (“process air”) is conveyed through a fan 6 in a process air duct 5.
  • dry heated process air 25 passes through the sleeve 23 in the tub 3 and the drum 2.
  • the moist warm process air 31 passes through a rear exit 24 from the tub
  • the moist, warm process air 31 reaches a heat exchanger 8, where the moisture contained in it condense due to the cooling of the process air and can be collected in a condensate container not shown here.
  • the condensate can flow into the tub 3, from where it is disposed of via the lye drain line 19 by means of the drain pump 14 via the sewer pipe 13 to the outside of the washer dryer can be.
  • the condensate 28 is then pumped out of the tub 3 via the lye drain line 19 by means of the sewage pump 14.
  • the small arrow indicates the flow direction of the condensate.
  • the dehumidified process air then continues to flow in the process air duct 5 and can be heated again by means of the heater 7 and enter the drum 2 as a warm, dry process air 25 via the sleeve 23, etc.
  • a time t 0 is determined in the control device 18, at which the condensation of the Betauungssensors 10,11,12 or a selected one of the plurality of Betauungssensoren 10,11,12 has reached a predetermined condensation B 0 , and the duration t prog of the drying program determined from the time t 0 .
  • the dew sensors 10, 11 and 12 are gradually dewatered with water in a first drying phase (generally the heating phase). If, in this first phase, the condensation is measured at two different points in time, there is a temporal increase in condensation. In the later course of the drying process, the dewing of the dewing sensors will generally decrease in a second drying phase. As a rule, first the dew at the front dew point sensor, then at the upper dew point sensor and finally at the rear dew point sensor will decrease.
  • the process air is circulated until a desired degree of drying, ie residual moisture content of the laundry items, is reached. Then, the drying process caused by the controller is ended.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Drying Of Solid Materials (AREA)

Claims (14)

  1. Séchoir (1) comprenant une chambre de séchage (2) destinée à recevoir du linge (4), un capteur d'humidité (10, 11, 12), un dispositif de commande (18) et un conduit d'air de traitement (5) dans lequel se trouvent un chauffage (7) destiné à réchauffer l'air et une soufflante (6), sachant que comme capteur d'humidité (10, 11, 12), au moins un capteur de condensation optique (10, 11, 12) est disposé à l'extérieur de la chambre de séchage (2), caractérisé en ce qu'une relation entre un degré de condensation du capteur de condensation (10, 11, 12) à un instant ts durant un programme de séchage et une durée tprog du programme de séchage est déposée dans le dispositif de commande (18).
  2. Séchoir (1) selon la revendication 1, caractérisé en ce que le séchoir (1) est conçu comme lave-linge séchant avec une cuve de lavage (3) dans laquelle est prévu, comme chambre de séchage (2), un tambour (2) monté tournant dans la cuve de lavage (3).
  3. Séchoir (1) selon la revendication 2, caractérisé en ce que le au moins un capteur de condensation (10, 11, 12) est disposé dans une paroi (15, 16, 17) de cuve de lavage.
  4. Séchoir (1) selon la revendication 3, caractérisé en ce qu'au moins deux capteurs de condensation (10, 11, 12) sont disposés dans la paroi (15, 16, 17) de cuve de lavage.
  5. Séchoir (1) selon la revendication 4, caractérisé en ce qu'un premier capteur de condensation (10) est disposé dans une paroi avant (15) de cuve de lavage, un deuxième capteur de condensation (11) est disposé dans une paroi supérieure (16) de cuve de lavage et un troisième capteur de condensation (12) est disposé dans une paroi arrière (17) de cuve de lavage.
  6. Séchoir (1) selon l'une des revendications 1 à 5, caractérisé en ce qu'au moins un capteur de condensation (10, 11, 12) est disposé au-dessus d'un axe de rotation (27) du tambour (2).
  7. Séchoir (1) selon l'une des revendications 2 à 6, caractérisé en ce que le au moins un capteur de condensation (10, 11, 12) est disposé en affleurement avec une paroi (15, 16, 17) de cuve de lavage.
  8. Séchoir (1) selon la revendication 1, caractérisé en ce que le capteur de condensation optique (10, 11, 12) comporte une première interface et une deuxième interface, lesdites interfaces étant réalisées et disposées l'une par rapport à l'autre de telle sorte que la lumière envoyée dans le capteur de condensation (10, 11, 12) par une fibre optique d'entrée (30) tombe sur la première interface et est réfléchie par celle-ci- sur la deuxième interface et que la lumière réfléchie est renvoyée dans une fibre optique de sortie (30).
  9. Séchoir (1) selon l'une des revendications 1 à 8, caractérisé en ce que la relation entre le degré de condensation et la durée tprog du programme de séchage est déposée pour différentes charges de linge (4).
  10. Séchoir (1) selon l'une des revendications précédentes, caractérisé en ce que le séchoir (1) est conçu comme lave-linge séchant (1) avec une cuve de lavage (3) dans laquelle est prévu, comme chambre de séchage (2), un tambour (2) monté tournant dans la cuve de lavage (3).
  11. Procédé de fonctionnement d'un séchoir (1) comprenant une chambre de séchage (2) destinée à recevoir du linge (4), un capteur d'humidité (10, 11, 12), un dispositif de commande (18) et un conduit d'air de traitement (5) dans lequel se trouvent un chauffage (7) destiné à réchauffer l'air et une soufflante (6), sachant qu'au moins un capteur de condensation optique (10, 11, 12) est disposé à l'extérieur de la chambre de séchage (2), le procédé comprenant les étapes suivantes :
    (a) un réchauffement de l'air par utilisation du chauffage (7) ;
    (b) une introduction de l'air réchauffé dans la chambre de séchage (2) ;
    (c) une mise en contact de l'air réchauffé avec le au moins un capteur de condensation (10, 11, 12) ;
    (d) une mesure de la condensation du capteur de condensation (10, 11, 12) à au moins un instant ts ; caractérisé par
    (e) une comparaison de la condensation du capteur de condensation (10, 11, 12) mesurée à l'instant ts avec une relation déposée dans le dispositif de commande (18) entre un degré de condensation du capteur de condensation (10, 11, 12) à un instant ts et une durée tprog du programme de séchage ; et
    (f) une détermination de la durée tprog du programme de séchage.
  12. Procédé de fonctionnement d'un séchoir (2) selon la revendication 11, caractérisé en ce que
    (i) dans une première phase de séchage dans laquelle le degré de condensation du capteur de condensation (10, 11, 12) augmente avec le temps, la condensation du capteur de condensation (10, 11, 12) mesurée à l'instant ts est comparée avec la relation déposée dans le dispositif de commande (18) pour la première phase de séchage entre un degré de condensation du capteur de condensation (10, 11, 12) à un instant ts et une durée tprog du programme de séchage et évaluée en vue de déterminer la durée tprog du programme de séchage ; et/ou
    (ii) dans une seconde phase de séchage dans laquelle le degré de condensation du capteur de condensation (10, 11, 12) diminue avec le temps, la condensation du capteur de condensation (10, 11, 12) mesurée à l'instant ts2 > ts1 est comparée avec la relation déposée dans le dispositif de commande (18) pour la seconde phase de séchage entre un degré de condensation du capteur de condensation (10, 11, 12) à un instant ts et une durée tprog du programme de séchage et évaluée en vue de déterminer la durée tprog du programme de séchage.
  13. Procédé selon l'une des revendications 11 et 12, caractérisé en ce que la durée tprog du programme de séchage est déposée dans le dispositif de commande (18) pour différentes valeurs d'une humidité résiduelle du linge (4) à obtenir.
  14. Procédé selon l'une des revendications 11 à 13, caractérisé en ce qu'un instant t0 est déterminé dans le dispositif de commande (18), instant où la condensation du capteur de condensation (10, 11, 12) a atteint une condensation prédéterminée B0, et en ce que la durée tprog du programme de séchage est déterminée à partir de l'instant to.
EP12719726.7A 2011-05-20 2012-05-09 Séchoir à capteur d'humidité et procédé permettant de faire fonctionner ledit séchoir Not-in-force EP2710183B1 (fr)

Applications Claiming Priority (2)

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DE102011076220A DE102011076220A1 (de) 2011-05-20 2011-05-20 Trockner mit Feuchtesensor sowie Verfahren zu seinem Betrieb
PCT/EP2012/058539 WO2012159883A1 (fr) 2011-05-20 2012-05-09 Séchoir à capteur d'humidité et procédé permettant de faire fonctionner ledit séchoir

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EP2710183A1 EP2710183A1 (fr) 2014-03-26
EP2710183B1 true EP2710183B1 (fr) 2016-04-06

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EP (1) EP2710183B1 (fr)
CN (1) CN103547729B (fr)
DE (1) DE102011076220A1 (fr)
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WO (1) WO2012159883A1 (fr)

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CN105063980B (zh) * 2015-08-06 2018-11-23 无锡小天鹅股份有限公司 洗干一体机
DE102017204366A1 (de) * 2017-03-16 2018-09-20 BSH Hausgeräte GmbH Haushaltsgerät mit einer Trocknungsfunktion und mit einer Vorrichtung zur Erfassung einer Feuchte, sowie Verfahren zum Erfassen einer Feuchte
DE102017212313A1 (de) * 2017-07-19 2019-01-24 BSH Hausgeräte GmbH Haushaltsgeschirrspülmaschine und Verfahren zum Betreiben einer Haushaltsgeschirrspülmaschine
CN111553564B (zh) * 2020-04-09 2022-05-13 厦门大学 一种蒸汽干燥机能效评估方法及系统

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DE3329821A1 (de) * 1983-08-18 1985-02-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Detektor zur bestimmung einer dampfkonzentration
JP3009288B2 (ja) * 1992-01-13 2000-02-14 東京瓦斯株式会社 結露制御機能付衣類乾燥機
IL126826A0 (en) * 1998-10-30 1999-08-17 Optiguide Ltd Optical hygrometers
CN1231627C (zh) * 2002-05-08 2005-12-14 江苏海狮机械集团有限公司 模糊控制工业洗衣机浑浊度的检测及控制方法
DE102005016640B4 (de) 2005-04-11 2012-09-13 Hochschule Niederrhein Faseroptische Sensorvorrichtung
CN1904190A (zh) * 2005-07-30 2007-01-31 乐金电子(天津)电器有限公司 自动烘干装置及其控制方法
DE102006053274A1 (de) * 2006-11-06 2008-05-08 E.G.O. Elektro-Gerätebau GmbH Verfahren zum Ermitteln der Ladungsmenge in einem Wäschetrockner und Wäschetrockner
DE102007052796B4 (de) * 2007-11-02 2018-10-11 Hochschule Niederrhein Aktive faseroptische Betauungsvorrichtung
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US8984692B2 (en) * 2009-08-21 2015-03-24 Whirlpool Corporation Active moisture removal in a laundry treating appliance

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WO2012159883A1 (fr) 2012-11-29
CN103547729B (zh) 2016-04-06
PL2710183T3 (pl) 2016-10-31
CN103547729A (zh) 2014-01-29
DE102011076220A1 (de) 2012-11-22
EP2710183A1 (fr) 2014-03-26

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