EP1279760B1 - Procédé pour le séchage du linge - Google Patents

Procédé pour le séchage du linge Download PDF

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Publication number
EP1279760B1
EP1279760B1 EP02016548A EP02016548A EP1279760B1 EP 1279760 B1 EP1279760 B1 EP 1279760B1 EP 02016548 A EP02016548 A EP 02016548A EP 02016548 A EP02016548 A EP 02016548A EP 1279760 B1 EP1279760 B1 EP 1279760B1
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EP
European Patent Office
Prior art keywords
laundry
temperature
drying process
determined
warm air
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
EP02016548A
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German (de)
English (en)
Other versions
EP1279760A3 (fr
EP1279760A2 (fr
Inventor
Engelbert Heinz
Wilfried Dreischmeier
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.)
Herbert Kannegiesser GmbH and Co
Original Assignee
Herbert Kannegiesser GmbH and Co
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.)
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Publication date
Application filed by Herbert Kannegiesser GmbH and Co filed Critical Herbert Kannegiesser GmbH and Co
Publication of EP1279760A2 publication Critical patent/EP1279760A2/fr
Publication of EP1279760A3 publication Critical patent/EP1279760A3/fr
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Publication of EP1279760B1 publication Critical patent/EP1279760B1/fr
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
    • D06F58/32—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
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2101/02—Characteristics of laundry or load
    • D06F2101/06—Type or material
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/12—Temperature
    • 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
    • D06F58/46—Control of the operating time

Definitions

  • the invention relates to a method for drying laundry according to the preamble of claim 1.
  • the drying of laundry including both flat linen (bed linen, table linen) and clothing (underwear and outerwear) is expected to be done both for commercial and private purposes by dryers.
  • the laundry is dried by warm air.
  • the after-treatment by cooling can be followed by the hot air treatment of the laundry, using cold air or air at ambient temperature.
  • the drying process is then composed of a warm air drying phase and a cooling phase.
  • the present invention seeks to provide methods for drying laundry, which allow a reliable automatic termination of at least the drying process in a simple manner.
  • a method for achieving this object comprises the measures of claim 1.
  • a suitable reference curve or reference curve is selected which is closest to the temperature readings.
  • the selected reference curve contains the previously determined, most favorable time for the completion of the drying process, in particular for switching off the hot air supply to the laundry.
  • the most favorable time of shutdown of the hot air supply can be so simple, but still be predicted with relatively high accuracy.
  • temperatures are determined in that phase of the drying process in which the laundry hot air is supplied. These temperature measurements make it possible to predetermine the preferred time of switching off the hot air supply according to the invention. As a result, an impairment, namely overheating, the laundry items is reliably avoided and it is the energy for hot air generation is limited to a minimum.
  • the reference curves are formed from reference temperature readings, which have preferably been previously determined separately during a complete exemplary drying process, at least the phase of the hot air supply to the laundry.
  • the reference curves are determined at least as a function of the particular type of laundry, in particular the material of the laundry. But it is also conceivable to create the reference curves in addition to the type or the material of the laundry still depending on the loading condition or loading level of the dryer. There then exist for the same type of laundry or laundry of the same material several reference curves for different loading conditions or load levels of the dryer.
  • the temperature of the laundry is determined several times during a certain time interval. At least two temperature values are determined, which are at the beginning and at the end of the respective time interval. From these values, the time-related increase in temperature during the drying of the laundry can be determined. In particular, a first derivative of the temperature profile can be formed according to time and from this the slope of the temperature curve in the time interval can be determined. If more than two temperature values are determined, it is also possible to determine different gradients of the temperature profile curve in the time interval. Reliable statements about the remaining drying time, in particular the time at which the exhaust air supply to the laundry is switched off, can be determined from the determined time-related temperature increases or gradients or changes in the slope of the temperature curve in the time interval. Also in this way relatively simple predictions can be made by simple means taking into account, in particular, the material of the laundry and / or the degree of loading of the dryer over the time of completion of the drying process, in particular the termination of the hot air supply.
  • the time interval begins only after a certain start time (dead time) of the drying process.
  • start time dead time
  • reliable assumptions about the expected end of the drying process, in particular the phase of the hot air supply to the laundry, depending on such a time interval can be made by the temperature increase has sufficient explanatory power.
  • the method described above is particularly suitable for terry towels.
  • the temperature of the laundry is determined during the drying process and compared with the temperature of the supplied hot air (supply air) and / or the discharged air (exhaust air), preferably the measured temperature of the laundry of at least one of the latter temperatures subtracted. It has surprisingly been found that the resulting temperature difference is in a certain relation or in connection with the residual drying time. With decreasing temperature difference of the drying process is progressing progressively. At a certain temperature difference can then be reliably shut off the drying process, in particular a break in the hot air supply to the laundry done.
  • the temperatures of both the laundry and the supply air and / or exhaust air are determined and compared continuously or at certain successive time intervals or steps.
  • the temperature difference can be ascertained, at which a termination of the drying process, in particular a deactivation of the hot air supply to the laundry, is advantageous.
  • This temperature difference used for switching off as a function of the type and / or the material of the laundry can optionally be determined in addition to the degree of loading of the dryer.
  • At the same time determined temperatures of the laundry and the supply air and / or exhaust air compared. This increases the reliability of the method according to the invention. This method is particularly suitable for sensitive materials, especially microfibers.
  • Another method for developing one or both of the previously described methods comprises the measures of claim 12. Accordingly, the drying process is terminated when the measured temperature of the laundry has reached a predetermined temperature limit.
  • This temperature limit can be previously determined by experiment, depending on the type, in particular of the material, the laundry.
  • the temperature limit value can also be determined as a function of the loading level of the dryer. For this purpose, it is possible to previously determine comparison curves and evaluate them. By storing the comparison curves in a programmable controller of the dryer, the temperature values can be called up at any time, in particular temperature limit values. Then then a targeted shutdown of the drying process, in particular the hot air supply to the laundry done.
  • the temperature of the surface of the laundry is measured, preferably a non-contact measurement of the surface temperature of the laundry is made. In this way, temperature measurements can be determined particularly reliably without affecting the laundry, even within a relatively short time sequence, so that a temperature curve or a region thereof can be determined almost completely.
  • All of the above-described methods according to the invention are characterized by a simple operation of the dryer. It only needs the type of laundry, in particular the material of the laundry to be dried, to be entered into the controller or to be selected from the programmed in a controller types of laundry the appropriate type of laundry. Thereafter, upon reaching the intended degree of drying of the laundry, the drying process, in particular the hot air supply, is automatically and reliably terminated. If also the loading condition or degree of loading of the dryer in the determination of the shutdown of drying In the simplest case, enter a corresponding value in addition to the material type. In a preferred embodiment of the method, this value does not need to be entered.
  • the degree of loading of the drum can be derived, for example, from reference curves, namely from the slope of the same at the beginning of the curve, ie at the beginning of the drying process. But it is also possible to determine the weight of the laundry in the dryer by appropriate transducers. Under deduction of the known, constant weight of the drum is then given the weight of currently located in the same laundry and thus the degree of loading of the dryer.
  • the method preferably used for the respective type of laundry is used for the respective type of laundry.
  • practically all the previously described methods or at least some of the previously described methods are used alternatively in the control of the same dryer, namely as a function of the material or fabric of the respective laundry to be dried.
  • the drying process is then monitored and terminated according to the most favorable process specific to the product.
  • the dryer 10 shown diagrammatically in FIGS. 1 and 2 has a stationary outer housing 11 and a drum 12 which can be driven in rotation about a horizontal axis of rotation.
  • a loading door 13 in one end face of the housing 11 loads the drum 12 of the dryer 10 with the laundry 14 to be dried, which is hinted at in the figures.
  • the closing during the drying process loading door 13 for removing dried laundry 14 from the drum 12 of the dryer 10 is used.
  • the housing 11 is associated with a heater 15 from the outside. In this warm air is generated, which is passed through openings or channels not shown in the perforated drum 12. Symbolically, the hot air flow 16 is shown in the figures by arrows. The warm air at the same time forms the supply air to the dryer 10. Cooled and moisture-enriched air is led out of the housing 11 as exhaust air. By arrows, the exhaust air flow 16 is hinted and symbolically represented.
  • Heating energy is supplied in the form of steam, gas or electricity via a power supply line 18 of the heater 15.
  • a heating valve 19 (or in the case of heating with electricity another suitable means), the energy flow through the power supply line 18 is changeable and at the end of the heating or drying process completely interruptible.
  • the heating valve 19 is an actuator 20, for example, an electric servomotor assigned.
  • the actuator 20 closes and opens the heating valve 19 or changes the energy flow through the heating valve 19 and the power supply line 18.
  • the actuator 20 is controlled or regulated by a suitable means, which in the exemplary embodiment shown is a programmable logic controller (SPS 21). is.
  • SPS 21 programmable logic controller
  • a temperature-proportional measuring signal of a sensor for example a non-contact infrared sensor 22, is fed to the PLC 21.
  • a sensor for example a non-contact infrared sensor 22
  • specific drying parameters in particular temperatures, and / or several different materials or fabrics of the laundry are preferred. or programs deposited.
  • the infrared sensor 22 is associated with the dryer 10 such that it measures the temperature of the laundry 14 in the drum 12 without contact, preferably the surface temperature of the laundry 14th
  • the dryer of Fig. 2 substantially corresponds to the dryer 10 of Fig. 1.
  • the dryer 10 of FIG. 2 has two temperature sensors, preferably of the BT 100 type.
  • a temperature sensor 23 serves to measure the temperature of the warm air flow 16.
  • the other temperature sensor 24 measures the temperature of the exhaust air flow 17.
  • Temperature-proportional values of both temperature sensors 23 and 24 are also routed to SPS 21.
  • a single temperature sensor 23 or 24 is sufficient.
  • FIG. 1 A first method according to the invention is explained with reference to FIG. 1:
  • the temperature of the laundry 14 is measured by the infrared sensor 22 during at least part of a first phase of the drying process, namely during the loading of the laundry 14 with the hot air flow 16.
  • the surface temperature of the laundry 14 is determined several times at least during a representative part of the hot air application of the laundry 14, preferably by determining the surface temperature of the laundry 14 at regular intervals or in short successive times or else continuously.
  • the measured values obtained in this way which are proportional to the surface temperature of the laundry 14 at the respective time of the measurement, result in temperature measured values which are stored in the SPS 21. It is sufficient if several temperature measured values are determined within a time of a few minutes, for example 1 to 5 minutes, so that temperature measurements do not have to be determined during the entire drying period, which is basically possible.
  • reference curves are stored, which also contain temperature values or with the surface temperature of the laundry 14 proportional values. The values together give the respective reference curve.
  • reference curves for different load levels of the drum 12 of the dryer 10 with laundry 14 in the PLC 21 are stored. Then the PLC 21 receives for each type of material of the laundry 14 several reference curves, for example, for a full, half or only one-third loaded drum 12th
  • the degree of loading of the drum 12 can be determined from the initial slope of the temperature curve at the beginning of the drying process.
  • the slope of the temperature curve at the beginning of the drying process provides a reliable indication of the degree of loading of the drum 12.
  • the degree of loading of the drum 12 can also be determined if in the PLC 21 only a single reference curve for an exemplary, but known loading level is stored. Due to deviating slope of the temperature curve at the beginning of Drying process can then calculate the actual load level, without this must be entered into the PLC 21.
  • the temperature measured values (or temperature-proportional values) recorded by the infrared sensor 22 during the respective drying operation are then compared with the at least one reference curve in the SPS 21. Expediently, identical time segments are compared with one another. If temperature readings of the surface of the laundry 14 are determined during a certain period of time or only after the beginning of the drying process only during the current drying process, a comparison of the temperature measurements obtained with a temperature curve of the reference curve takes place within the associated time spectrum of the reference curves.
  • All reference curves have a switch-off time for the hot air supply to the laundry 14 in the drum 12. Based on the selected reference curve, the resulting shutdown of the hot air supply is used to interrupt the hot air supply in the current drying process, in particular to end, by the PLC 21 to the actuator 21, a signal to close the heating valve 19 and thus to interrupt the by the power supply line 18 to the heater 15 passing energy there.
  • this cooling phase can take place over a constant period of time, this constant period starting with the end of the hot air supply.
  • This constant time period is preferably dependent on the particular material of the laundry, so that a constant time duration is entered in the SPS 21 for each material.
  • the cooling duration representing a final phase of the drying process is also controlled as a function of temperature measured values or temperature-proportional measured values which are recorded by the infrared sensor 22 during the cooling phase. It is then entered a cooling temperature for the respective material of the laundry in the PLC 21 and when it reaches the end of the cooling phase.
  • the PLC 21 would also control the motor for rotating the drum 12.
  • the dryer 10 is operated as in the method described above.
  • the infrared sensor 22 also measures temperatures of the surface of the laundry 14 without contact during at least the first phase of the drying process in which hot air flow 16 is conducted to the laundry 14 into the drum 12.
  • the temperature measured values or temperature-proportional measured values determined in this way are in turn passed to the PLC 21 where they are stored and / or processed.
  • the temperature measurement of the surface of the laundry 14 takes place during drying with the hot air flow 16 only within a specific, selected time interval (time window).
  • This time window may be, for example, one to five minutes, preferably one and a half minutes of hot air drying.
  • the time interval or the time window begins only a certain time after the beginning of the drying process, in particular from the time of the beginning of the supply of hot air flow 16 to the laundry 14, for example, five to ten minutes later. This eliminates a dead time at the beginning of drying with hot air.
  • the infrared sensor 22 determines a slope of the temperature profile or a temporal temperature rise. This corresponds to the first derivative of the temperature difference between two consecutive temperature measurements over time. From this, the degree of loading of the drum 12 can be derived.
  • the remaining duration of the drying process with hot air is determined on the basis of differential values or empirical values stored in the SPS 21.
  • the further energy supply to the heater 15 is interrupted by closing the heating valve 19 and the first portion of the drying of the laundry 14 which ends with hot air is ended. It may then be followed by a cooling phase, which extends over a constant period or as described in more detail above is controlled. It is also conceivable, however, to complete the drying process immediately after completion of the hot air supply to the laundry 14 in the drum 12 when the drying process has only one working with hot air drying area.
  • the method described is based on the knowledge that the temperature difference between the temperature of the hot air flow 16 and / or the exhaust air flow 17 and the temperature at the surface of the laundry 14 decreases towards the end of the drying. If a predetermined temperature difference is reached, either the working with hot air drying process is terminated immediately, that is, the heater 15 is turned off, or even dried over a predetermined period of time. This period is preferably dependent on the material of the laundry 14 and / or the degree of loading of the drum 12.
  • the degree of loading of the drum 12 can be determined mathematically from the measured temperatures or by weighing the drum after loading the same with the dry laundry 14 can be determined, so no input to the control panel of the dryer 10 requires the type of material of the laundry 14 is entered beforehand , This also applies to the previously described procedures of the invention.
  • the temperature of the surface of the laundry 14 is kept constant throughout the hot air drying process, i. continuously or at regular (even) intervals.
  • the temperature measured values obtained are compared in SPS 21 with preset limit values. These limit values are determined by previous tests or sample drying with laundry 14 of different materials and / or different loading grades of the drum 12. It is entered manually only at the beginning of the drying process in the control panel of the dryer 10, which material consists of the laundry 14 to be dried. If you work with the degree of loading of the drum 10, this is determined automatically, as has already been described above.
  • the PLC 21 now selects depending on the material of the laundry to be dried 14 and possibly the degree of loading of the drum 12 from the appropriate limit.
  • the SPS 21 now compares the surface temperatures of the laundry 14, measured without contact during drying with hot air by the infrared sensor 22, with the selected limit value. Once a match is achieved, the PLC 21 shuts off the hot air drying operation by interrupting the power to the heater 15. Subsequently, a cooling phase can still be run through. This is also done in this method preferably over a predetermined period of time, which may be dependent on the material of the laundry 14 and / or the degree of loading of the drum 12, if necessary.
  • the dryer 10 may operate according to one of the methods described above. Then in the dryer 10 all types of laundry, especially laundry of different materials, dried by the same process, in particular the completion of the drying process controlled by the same method.
  • the dryer 10 works according to several, preferably all methods described above.
  • the PLC 21 is then programmed to control the dryer 10 by several or all methods. It is then worked alternatively by a suitable method.
  • the selection of the method preferably takes place according to the type of material or type of fabric of the laundry to be dried in each case. For example, in microfiber, a method is used in which the temperature difference of the temperature of the surface of the laundry 14 and the temperature of the exhaust air and / or the supply air is used to terminate the drying process. For terryclothes, on the other hand, a process is used in which the temperature rise in a time window is used to determine the most favorable end of the drying phase. Other methods are preferred for other types of laundry.
  • the eligible types of laundry are programmed into the PLC 21. It is then before starting the drying only in the controller, that is, the PLC 21, each to be dried laundry type that corresponds to an entered type of laundry to select. Thereafter, the drying process is automatically controlled by the PLC 21 performs the drying of a suitable method for the type of laundry or the material of the laundry, which has been assigned in the programming of the SPS 21 of each stored therein type of goods (type of material and / or type of fabric) is. According to the applicable method described above, the drying operation is then controlled, in particular, the end of the drying process precalculated and the drying process finished at the calculated time.
  • the prediction of the end of the drying process is thus carried out according to the invention always according to such a method that is particularly suitable for the particular laundry to be dried or has been found to be particularly suitable.
  • the cooling phase is controlled by the PLC 21 as a function of the material or fabric of the respectively dried item of the laundry. Due to the selected type of laundry follows as needed, so if it is for the respective Goods is provided on the dry phase, a cooling phase, in a manner provided for the respective type of goods, in particular Zeidauer.
  • the methods described above are suitable for both dryers 10 used in commercial laundries and dryers in the home (household dryers).
  • the invention is not limited to the initially described by way of example dryer 10; is more suitable for any dryer.

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

Claims (15)

  1. Procédé pour le séchage du linge (14), dans lequel le linge humide (14) est soumis à de l'air chaud, et au moins pendant un intervalle de temps défini de l'opération de séchage, plusieurs températures du linge (14) sont mesurées, un instant d'arrêt de l'opération de séchage étant détecté à partir de ces valeurs de mesure de température, et ensuite éventuellement le linge étant refroidi, caractérisé en ce que les valeurs de mesure de température obtenues à partir des températures mesurées du linge (14) sont comparées à des courbes de référence et l'on déduit de la courbe de référence adaptée ou la plus proche l'instant d'arrêt de l'opération de séchage.
  2. Procédé selon la revendication 1, caractérisé en ce que la température est détectée de préférence à la surface du linge (14), dans la phase de l'opération de séchage dans laquelle le linge (14) reçoit de l'air chaud (écoulement d'air chaud 16).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on utilise la température détectée du linge (14) pour détecter l'instant d'interruption de l'alimentation d'air chaud (écoulement d'air chaud 16) à l'aide des valeurs de température prédéfinies.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on déduit de la courbe de référence sélectionnée l'instant d'arrêt de l'opération de séchage avec de l'air chaud (écoulement d'air chaud 16).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on détecte, ou l'on forme, à partir des valeurs de mesure de température du linge (14), un tracé courbe et l'on compare ce tracé courbe aux courbes de référence, et l'on choisit de préférence la courbe de référence qui présente ledit tracé courbe ou qui au moins s'en rapproche le plus.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les courbes de référence sont détectées à partir de valeurs de mesure de température de référence pendant l'opération de séchage, de préférence toute l'opération de séchage avec au moins de l'air chaud (écoulement d'air chaud 16), en fonction du type, notamment de la matière, du linge (14) et/ou en fonction du chargement du sécheur (10), de préférence du tambour (12).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la température du linge (14) est mesurée pendant un certain intervalle de temps plusieurs fois, au moins deux fois, et l'on détecte à partir de ces valeurs de mesure de température l'augmentation de la température en fonction du temps, notamment l'augmentation de l'allure de la température, et à partir de l'augmentation de température en fonction du temps, on détecte l'instant d'arrêt de l'opération de séchage, notamment de l'arrêt de l'apport d'air chaud (écoulement d'air chaud 16), de préférence l'intervalle de temps commençant seulement après un temps de démarrage déterminé de l'opération de séchage.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on détermine, en fonction de l'augmentation de température en fonction du temps, l'instant d'arrêt de l'opération de séchage, notamment d'arrêt de l'apport d'air chaud (écoulement d'air chaud 16), en tenant compte du type de linge, de préférence de la matière du linge (14), et/ou du degré de chargement du sécheur (10).
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'instant d'arrêt de l'apport d'air chaud au linge (14) est déterminé, de préférence déterminé à l'avance, en fonction de l'augmentation de température en fonction du temps, à l'intérieur de l'intervalle de temps déterminé.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la température du linge (14) mesurée pendant l'opération de séchage est comparée avec la température de l'air chaud acheminé (écoulement d'air chaud 16) et/ou de l'air évacué (écoulement d'air de sortie 17), et en cas d'une différence de température déterminée, l'opération de séchage est terminée.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les températures sont détectées et comparées en continu, c'est-à-dire à intervalles de temps successifs, de préférence uniformes, des températures détectées à des temps identiques étant notamment comparées, et de préférence à l'obtention d'une différence de température déterminée, l'opération de séchage, notamment l'apport d'air chaud (écoulement d'air chaud 16), est terminée.
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'opération de séchage est terminée dès que la température mesurée du linge (14) a atteint une valeur limite de température prédéfinie.
  13. Procédé selon la revendication 12, caractérisé en ce que la valeur limite de température est détectée en fonction du type, notamment de la matière, du linge (14).
  14. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la valeur limite de la température est détectée à l'aide de courbes d'essai du type respectif, notamment de la matière respective, du linge (14) et/ou du degré de chargement du sécheur (10).
  15. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la température du linge (14) à la surface du linge est détectée sans contact, de préférence par au moins un capteur infrarouge (22).
EP02016548A 2001-07-24 2002-07-24 Procédé pour le séchage du linge Expired - Lifetime EP1279760B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10134971A DE10134971A1 (de) 2001-07-24 2001-07-24 Verfahren zum Trocknen von Wäsche
DE10134971 2001-07-24

Publications (3)

Publication Number Publication Date
EP1279760A2 EP1279760A2 (fr) 2003-01-29
EP1279760A3 EP1279760A3 (fr) 2003-10-29
EP1279760B1 true EP1279760B1 (fr) 2007-11-14

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EP02016548A Expired - Lifetime EP1279760B1 (fr) 2001-07-24 2002-07-24 Procédé pour le séchage du linge

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EP (1) EP1279760B1 (fr)
AT (1) ATE378455T1 (fr)
DE (2) DE10134971A1 (fr)
ES (1) ES2295265T3 (fr)

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DE102008008797A1 (de) 2008-02-12 2009-08-13 Fritz Curtius Vorrichtung und Verfahren zum Trocknen
DE102008023595A1 (de) 2008-05-14 2009-11-19 Curtius, Fritz Trockner mit einer mit Dampf beheizten Heizstufe.
DE102008049034A1 (de) 2008-09-25 2010-04-01 Curtius, Fritz Ablufttrockner
CN101842532B (zh) * 2007-10-31 2012-04-25 Bsh博世和西门子家用器具有限公司 用于确定处理过程的停止时刻的方法
US8819958B2 (en) 2010-11-08 2014-09-02 Whirlpool Corporation End of cycle detection for a laundry treating appliance
US9580860B2 (en) 2009-12-18 2017-02-28 Whirlpool Corporation Method for operating a clothes dryer using load temperature determined by an infrared sensor

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DE102005055411A1 (de) * 2005-11-21 2007-05-24 Robert Bosch Gmbh Trockner und Verfahren unter Verwendung des Trockners
DE102006037239A1 (de) * 2006-08-09 2008-02-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und Wäschetrockner bzw. Waschtrockner zum Steuern des Trocknens von feuchter Wäsche
KR100866884B1 (ko) 2007-06-15 2008-11-04 엘지전자 주식회사 건조기의 포량 결정 제어방법 및 그 건조기
ES2380269B1 (es) * 2009-07-27 2013-03-15 Dilssa Laundry, S.A. Secadora con modulo de medicion de la temperatura por medio de una radiacion infrarroja.
US8245415B2 (en) 2009-12-18 2012-08-21 Whirlpool Corporation Method for determining load size in a clothes dryer using an infrared sensor
US8549770B2 (en) 2009-12-18 2013-10-08 Whirlpool Corporation Apparatus and method of drying laundry with drying uniformity determination
US8443527B2 (en) 2009-12-18 2013-05-21 Whirlpool Corporation Fabric temperature estimation for a laundry dryer
DE102012008193A1 (de) * 2012-04-26 2013-10-31 Herbert Kannegiesser Gmbh Verfahren zum Trocknen von Wäschestücken
DE102016224007A1 (de) * 2016-12-02 2018-06-07 BSH Hausgeräte GmbH Wäschepflegegerät aufweisend einen Infrarotsensor und Verfahren zum Betreiben eines solchen
CN108239867B (zh) * 2016-12-26 2021-03-02 青岛海尔洗衣机有限公司 一种快速干衣机的控制方法及快速干衣机

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FR2639369B1 (fr) * 1988-11-24 1990-12-28 Ciapem Seche-linge muni d'un systeme de commande automatique de fonctionnement
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101842532B (zh) * 2007-10-31 2012-04-25 Bsh博世和西门子家用器具有限公司 用于确定处理过程的停止时刻的方法
CN102409509B (zh) * 2007-10-31 2013-02-27 Bsh博世和西门子家用器具有限公司 用于确定处置引入到处理衣物的家用电器内的衣物的处理过程的停止时刻的方法
DE102008008797A1 (de) 2008-02-12 2009-08-13 Fritz Curtius Vorrichtung und Verfahren zum Trocknen
DE102008023595A1 (de) 2008-05-14 2009-11-19 Curtius, Fritz Trockner mit einer mit Dampf beheizten Heizstufe.
DE102008049034A1 (de) 2008-09-25 2010-04-01 Curtius, Fritz Ablufttrockner
US9580860B2 (en) 2009-12-18 2017-02-28 Whirlpool Corporation Method for operating a clothes dryer using load temperature determined by an infrared sensor
US8819958B2 (en) 2010-11-08 2014-09-02 Whirlpool Corporation End of cycle detection for a laundry treating appliance

Also Published As

Publication number Publication date
ES2295265T3 (es) 2008-04-16
EP1279760A3 (fr) 2003-10-29
EP1279760A2 (fr) 2003-01-29
ATE378455T1 (de) 2007-11-15
DE10134971A1 (de) 2003-02-06
DE50211187D1 (de) 2007-12-27

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