EP3623520A1 - Procédé et dispositif permettant de tuer thermiquement des germes dans des textiles avant un cycle de lavage dans un appareil de nettoyage et appareil de nettoyage - Google Patents

Procédé et dispositif permettant de tuer thermiquement des germes dans des textiles avant un cycle de lavage dans un appareil de nettoyage et appareil de nettoyage Download PDF

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Publication number
EP3623520A1
EP3623520A1 EP19194051.9A EP19194051A EP3623520A1 EP 3623520 A1 EP3623520 A1 EP 3623520A1 EP 19194051 A EP19194051 A EP 19194051A EP 3623520 A1 EP3623520 A1 EP 3623520A1
Authority
EP
European Patent Office
Prior art keywords
textiles
cleaning device
heating
amount
temperature
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.)
Withdrawn
Application number
EP19194051.9A
Other languages
German (de)
English (en)
Inventor
Karsten Gayk
Rainer Bicker
Markus Drücker
Ralf Templin
Magnus Kortenjann
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3623520A1 publication Critical patent/EP3623520A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only
    • D06F2202/04—
    • D06F2202/085—
    • D06F2202/10—
    • D06F2212/00—
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying

Definitions

  • the invention relates to a method and a device for the thermal killing of germs in textiles before a washing cycle in a cleaning device and a cleaning device.
  • this object is achieved by a method and a device for the thermal killing of germs in textiles before a washing cycle in a cleaning device and a cleaning device with the features of the main claims.
  • the advantages which can be achieved with the invention also consist in low water consumption.
  • the method for the thermal killing of germs in textiles before a washing cycle in a cleaning device comprises a step of determining an amount of energy necessary to reach a TARGET textile temperature.
  • the method further comprises a step of heating the textiles to the TARGET textile temperature in the cleaning device, in which the textiles are heated to the TARGET textile temperature using the previously determined amount of energy.
  • the moisture in the textiles when heated is less than one hundred percent.
  • the heated textiles are kept at the SET textile temperature for a predetermined period in order to kill the germs in the textiles before the wash cycle.
  • the method according to the approach presented here kills germs in textiles, such as clothing, even before a wash cycle. Since textiles can be realized in different ways and can accordingly have different properties, these textiles can be more gentle and nonetheless through the process can be reliably sterilized at the same time. This means, for example, that no aggressive cleaning agents are necessary to remove dirt and germs from the textiles.
  • the method can be suitable for a cleaning device, such as a commercially available washing machine.
  • the amount of energy necessary to reach a certain temperature is determined.
  • the specific temperature can also be called the TARGET textile temperature.
  • the DESIRED textile temperature can be specified so that a user of the cleaning device does not have to set it independently.
  • the heating step the textiles are heated to the target textile temperature.
  • the holding step the textiles are kept at the TARGET textile temperature. This results from the fact that the germs in the textiles often have a heat resistance limit. If this heat resistance limit is exceeded for a certain time, the germs die, so that the approach presented here can be used to ensure that the textiles are kept safely at the target textile temperature in order to exceed this heat resistance limit of the germs.
  • the method can comprise a step of moistening the textiles located in the cleaning device.
  • a motion signal is provided in a step of providing in order to move a laundry drum.
  • these steps are carried out before the step of determining the amount of energy.
  • the step of moistening the textiles, coupled with the step of providing the movement signal, can lead to a uniform moistening of the textiles. This means that the liquid that is supplied to the textiles can be distributed more evenly in the textiles by moving the laundry drum, which benefits the heating of the textiles. This in turn can improve the killing of the germs in the textiles.
  • information about a load quantity of the cleaning device with textiles is read in with a step of reading in a loading signal from a loading sensor of the cleaning device.
  • the loading quantity can alternatively also be determined in the reading step using a mass inertia method.
  • the reading step is carried out, for example, before the step of determining the amount of energy. In the determining step, the amount of energy is determined using the loading amount.
  • the reading step can also take place before the step of moistening the textiles. For example, it can be determined how much liquid is required to moisten the textiles so that the textiles are neither too damp nor too dry to carry out the beneficial killing of the germs in the textiles.
  • an origin temperature of the cleaning device and / or a textile weight and / or a water temperature and / or a water quantity value can be used in the determining step in order to determine the amount of energy.
  • determining the amount of energy for example, it can advantageously be prevented that an excessive amount of energy is used and thus, for example, an unnecessary increase in the electricity costs arises.
  • the heating step takes place according to a further embodiment, for example using a hot air blower and / or using steam heating and / or using heating a laundry drum and / or dry heating by means of a tubular heating element.
  • the textiles located in the laundry drum are heated to the desired textile temperature.
  • a hot air blower can be used in one embodiment. This is characterized by the fact that the target textile temperature is gently reached using hot air.
  • steam heating can be a further possibility for heating the textiles.
  • a given amount of water is heated so much that it evaporates.
  • the textiles can then also be gently heated to the target textile temperature using the water vapor generated.
  • the laundry drum can be heated.
  • a laundry drum can often be made of a heat-conducting material, there is also the possibility of gently heating the textiles by heating the laundry drum.
  • the laundry drum can be heated with induction heating, for example.
  • the laundry drum can be heated by radiation and convection of a dry heated tubular heater.
  • the approach presented here also creates a device which is designed to carry out, control or implement the steps of a variant of a method presented here in corresponding devices.
  • This embodiment variant of the invention in the form of a device can also achieve the object on which the invention is based quickly and efficiently.
  • the device can be designed to read input signals and to determine and provide output signals using the input signals.
  • An input signal can represent, for example, a sensor signal that can be read in via an input interface of the device.
  • An output signal can be a control signal or a Represent data signal that can be provided at an output interface of the device.
  • the device can be designed to determine the output signals using a processing rule implemented in hardware or software.
  • the device can comprise a logic circuit, an integrated circuit or a software module and can be implemented, for example, as a discrete component or can be comprised by a discrete component.
  • a computer program product or computer program with program code which can be stored on a machine-readable carrier or storage medium such as a semiconductor memory, a hard disk memory or an optical memory, is also advantageous. If the program product or program is executed on a computer or a device, the program product or program can be used to carry out, implement and / or control the steps of the method according to one of the embodiments described above.
  • a cleaning device which is designed to clean textiles.
  • the cleaning device according to this embodiment comprises both a laundry drum and a device as was presented here in a variant.
  • the cleaning device can be designed, for example, as a washing machine.
  • the cleaning device thus has the laundry drum, in which textiles can be cleaned, and the device by means of which the process for thermal killing of germs in textiles, for example, is controlled or carried out in the laundry drum.
  • the cleaning device can advantageously be designed so that the user does not have to manually clean his laundry himself.
  • the device or the method described here can be used accordingly in connection with a commercial or professional device, for example a medical device, such as a cleaning or disinfection device or a small sterilizer.
  • a medical device such as a cleaning or disinfection device or a small sterilizer.
  • FIG. 1 shows a schematic representation of a cleaning device 100 according to an embodiment.
  • the cleaning device 100 has a laundry drum 105 which is filled with textiles 110, and a device 115 for killing germs in textiles 110 before a washing cycle in the cleaning device 100.
  • the cleaning device 100 is thus designed to be in textiles 110 according to one exemplary embodiment to kill germs.
  • the cleaning device 100 can be designed to clean the textiles 110.
  • the laundry drum 105 is designed to receive the textiles 110. By picking up the textiles 110, different functions of the cleaning device 100, for example killing germs and / or cleaning the textiles 110, can be realized.
  • the device 115 is designed to control different components of a method.
  • the cleaning device 100 can be implemented as a washing machine. This means that the cleaning device 100 is usually used to clean or wash textiles 110.
  • a loading opening, through which the textiles 110 can reach the laundry drum 105 can be present both on a side wall which is oriented perpendicular to a base element and in a cover element of the cleaning device 100 which is aligned parallel to the base element.
  • Figure 2 shows a schematic representation of a device 115 according to an embodiment.
  • the device 115 is designed to carry out and / or to control the steps of the method for the thermal killing of germs in textiles prior to a washing cycle in corresponding units.
  • a determination unit 200 of the device 115 is designed to determine an amount of energy that is required to reach a target textile temperature.
  • a heating unit 205 of the device 115 is designed to heat textiles to the target textile temperature.
  • a holding unit 210 of the device 115 is designed to hold the heated textiles at the target textile temperature for a predetermined duration.
  • the determination unit 200 can also be designed as a control unit, for example. According to one exemplary embodiment, it can also perform functions of calculation, for example.
  • the heating unit 205 can be implemented as a heating device or as an interface to a heating device.
  • the heating process to the TARGET textile temperature can accordingly also according to an embodiment can be realized in different ways, such as by means of heating pipes, or a heating pipe body, a heat pump, a radiant heating body and / or an induction heater. It is necessary to specify that the TARGET textile temperature of the textiles has been reached, since germs can have heat resistance, for example. If the temperature rises and exceeds the heat resistance limit of the germs, they die.
  • the textiles can be held at the TARGET textile temperature by the holding unit 210. In this way it can be ensured that at least the majority of existing germs are killed.
  • FIG. 3 shows a flow diagram of a method 300 for killing germs in textiles before a washing cycle in a cleaning device according to an exemplary embodiment.
  • the method 300 which can also be referred to as a thermal germicidal method for sensitive textiles, comprises a step 305 of determining, a step 310 of heating and a step 315 of holding.
  • the method 300 may further comprise a step of reading 330, moistening 325, providing a motion signal 320 and calculating 335.
  • the amount of energy is determined according to one embodiment. Factors influencing this can be the original temperature of the cleaning device, the weight of the textile, the water temperature and / or the amount of water. This means that these factors are used to determine the amount of energy required to reach the desired laundry temperature, the TARGET textile temperature. According to one exemplary embodiment, both the original temperature of the cleaning device and the water temperature can be detected, for example, using an alkali temperature sensor. The amount of water can be recorded, for example, using a volume flow meter and / or the switch-on time of a valve.
  • the textiles are heated to the target textile temperature according to one exemplary embodiment.
  • the previously determined amount of energy is used. It is advantageous if the moisture of the textiles is below one hundred percent, otherwise there is a greater probability that the textiles could be damaged by the TARGET temperature.
  • the textiles can be heated, for example, using a hot air blower, steam heating, heating the laundry drum and / or dry heating using a tubular heater.
  • an optional step 335 of calculating an actual textile temperature can take place between step 305 of determining and step 310 of heating.
  • the actual textile temperature is determined using the (already in previous steps of a cleaning process not shown here amount of energy). In this way, for example, it is possible to determine how much energy is still to be introduced until the target textile temperature for killing germs is reached.
  • step 315 of holding the TARGET textile temperature reached is held for a predetermined duration.
  • step 320 of providing a motion signal can take place before step 305 of determining.
  • the motion signal represents the information to move a laundry drum.
  • the step 320 of the provision with the step 325 of the moistening is particularly effective.
  • the step 325 of moistening provides that the textiles located in the laundry drum are slightly moistened. This can be done, for example, by spraying on a cleaning agent or a liquid, such as water.
  • the laundry drum is moved by means of step 320 so that the cleaning agent or the water can be distributed uniformly in the textiles.
  • step 330 of reading in a loading signal which represents a loading amount of the cleaning device with textiles, can take place according to one exemplary embodiment.
  • the loading signal is provided by a sensor, which can be referred to as a loading sensor, for example.
  • the load quantity can be determined by inertia methods.
  • the laundry temperature during heating may not be able to be determined with the suds temperature sensor in the suds container, since this is not covered by water.
  • an alternative method is used.
  • the initial temperature of the washing machine is recorded.
  • the measured value of the alkali temperature sensor is recorded before the actual process described here starts.
  • the amount of laundry load should be determined. This can be done, for example, by means of a load sensor in the device or using an inertia method. If the laundry is moistened before the heating process, the temperature of the incoming water is also recorded by the alkali temperature sensor and the amount of water by the volume flow meter or the switch-on time of the valve.
  • the amount of energy required to reach the desired laundry temperature can then be determined.
  • the laundry temperature can be calculated from the amount of energy previously introduced.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP19194051.9A 2018-09-14 2019-08-28 Procédé et dispositif permettant de tuer thermiquement des germes dans des textiles avant un cycle de lavage dans un appareil de nettoyage et appareil de nettoyage Withdrawn EP3623520A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018122464.8A DE102018122464A1 (de) 2018-09-14 2018-09-14 Verfahren und Vorrichtung zum thermischen Abtöten von Keimen in Textilien vor einem Waschgang in einem Reinigungsgerät und Reinigungsgerät

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Publication Number Publication Date
EP3623520A1 true EP3623520A1 (fr) 2020-03-18

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EP19194051.9A Withdrawn EP3623520A1 (fr) 2018-09-14 2019-08-28 Procédé et dispositif permettant de tuer thermiquement des germes dans des textiles avant un cycle de lavage dans un appareil de nettoyage et appareil de nettoyage

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EP (1) EP3623520A1 (fr)
DE (1) DE102018122464A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022207950A1 (de) 2022-08-02 2024-02-08 BSH Hausgeräte GmbH Waschmaschine mit Luftheizung und Verfahren zu deren Betrieb

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050252250A1 (en) * 2004-05-13 2005-11-17 Lg Electronics Inc. Apparatus and method for controlling steam generating unit of washing machine
WO2006129912A1 (fr) * 2005-05-31 2006-12-07 Lg Electronics Inc. Machine a laver generant et utilisant de la vapeur
EP2703540A2 (fr) * 2012-08-28 2014-03-05 Samsung Electronics Co., Ltd Appareil de séchage, lave-linge pourvu de ce dernier et procédé de commande de celui-ci
US20140208522A1 (en) * 2013-01-31 2014-07-31 Youngkee OH Washing machine and method of controlling the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013225113B4 (de) * 2013-12-06 2019-01-31 BSH Hausgeräte GmbH Verfahren zur Behandlung von Wäsche mit verbesserter Benetzungsphase und hierzu geeignete Waschmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050252250A1 (en) * 2004-05-13 2005-11-17 Lg Electronics Inc. Apparatus and method for controlling steam generating unit of washing machine
WO2006129912A1 (fr) * 2005-05-31 2006-12-07 Lg Electronics Inc. Machine a laver generant et utilisant de la vapeur
EP2703540A2 (fr) * 2012-08-28 2014-03-05 Samsung Electronics Co., Ltd Appareil de séchage, lave-linge pourvu de ce dernier et procédé de commande de celui-ci
US20140208522A1 (en) * 2013-01-31 2014-07-31 Youngkee OH Washing machine and method of controlling the same

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