EP2072659B1 - Laundry drying device and method for operating same - Google Patents

Description

• mindestens einen Brandsensor zum Erfassen eines in dem Wäschetrocknungsgerät, insbesondere in der Wäschetrommel, herrschenden oder entstehenden Brandes und
• mindestens eine Löschmedium-Zuführungseinrichtung zum Einbringen eines Löschmediums in das Wäschetrocknungsgerät, insbesondere in die Wäschetrommel, beim Auslösen der Feuerlöscheinrichtung.

The invention relates to a laundry drying apparatus, comprising a laundry drum for receiving textiles and a fire extinguishing device, which comprises:

• at least one fire sensor for detecting a in the laundry drying apparatus, in particular in the laundry drum, prevailing or resulting fire and
• at least one extinguishing medium supply device for introducing an extinguishing medium in the laundry drying device, in particular in the laundry drum, when triggering the fire extinguishing device.

Such a clothes dryer emerges from the U.S. Patent 6,715,216 ,

Generally known are clothes dryers for drying laundry. Another area of use for a part of such laundry drying appliances is to refresh laundry. For refreshing laundry either at the end of a drying process or even dry laundry, a liquid (usually water), which may also contain additives such as perfume, sprayed on the laundry. To provide the liquid, such laundry drying devices have a liquid container corresponding to. The liquid container may be provided independently, but may also be used at the same time as a condensation water tank. In tumble dryers with a fixed water line connection, the liquid can also be supplied from such a port.

Furthermore, the problem is generally known that overheating can cause a fire in rare exceptional cases. In particular, when drying textiles with a very high and fine lint, a fire is not completely ruled out. Accordingly, there are high demands on tumble driers in order to make them so safe that a possible fire can not skip from the laundry drum to other components of the tumble dryer or even to the environment of the tumble dryer. Accordingly, such a clothes dryer is to be made of materials which are fire resistant and thus represent a significant cost position in the manufacture of such a clothes dryer.

The object of the invention is to propose an alternative construction or construction for a laundry drying apparatus which allows a simple but nevertheless safe construction for avoiding a fire or even a skipping of a fire.

This object is achieved by a laundry drying apparatus according to the independent claim. Advantageous embodiments are the subject of dependent claims.

The laundry drying apparatus (separate tumble dryer or full-washer dryer) is equipped with a fire extinguishing device which comprises: at least one fire sensor for detecting a fire prevailing or arising in the laundry drying apparatus, in particular in the laundry drum, and at least one extinguishing medium supply apparatus for introducing an extinguishing medium into the laundry dryer; in particular in the laundry drum, when the fire extinguishing device is triggered, wherein the extinguishing medium supply device comprises a laundry refreshing device, which generates laundry misting device for removing odors from textiles mist, drops or vapor from a liquid and leads into the laundry drum, and the extinguishing medium supply means to a extinguishing medium container Provision of a particular gaseous or powdered extinguishing medium and a transport device, in particular a fan, for transporting having the extinguishing medium in the laundry drum when triggering the fire extinguishing device.

In principle, various types of direct or indirect fire-detecting fire sensors can be used. Thus, e.g. Gases in the exhaust air are detected by the carbon dioxide content or by particles. At a temperature which indicates or threatens a fire outbreak, the extinguishing medium, in particular a liquid, is introduced into the laundry drum, in particular sprayed, so that a fire or an emerging fire is extinguished.

Under a clothes drying machine is understood both a combined washer dryer for washing and drying and a tumble dryer as a single device.

The extinguishing medium supply device has an extinguishing medium container for providing a particular gaseous or powdery extinguishing medium and a transport device, in particular a fan, for transporting the extinguishing medium into the laundry drum when the fire extinguishing device is triggered. As a result, extinguishing agents can be used, which can achieve a more effective extinguishing effect than water.

The extinguishing medium supply means comprises a laundry refreshing means. Advantageously can thus be used as part of the fire extinguishing a well-known Wäscheauffrischungseinrichtung which generates to remove odors from textiles mist, drops or vapor from a liquid and leads into the laundry drum. It is thus also possible to use laundry drying devices with a functionality for refreshing or ventilating items of clothing.

The fire extinguishing device preferably has a control device, which is designed and / or programmed to trigger the fire extinguishing device or a corresponding fire extinguishing function in such a detection.

The fire sensor is particularly advantageously a temperature sensor for detecting a temperature prevailing in the laundry drying device, in particular in a laundry drum and for outputting a corresponding temperature signal and the control device is preferably designed and / or programmed to trigger the fire extinguishing device or a corresponding fire extinguishing function, if that Temperature signal exceeds a predetermined fire threshold.

The temperature sensor may be an infrared sensor or an NTC resistor. The fire or in particular temperature sensor may preferably be arranged on a sleeve. It is also possible to detect, in addition to resulting gases, increasing temperature values by means of e.g. a direct measuring infrared sensor or e.g. an indirectly measuring NTC resistor (NTC: negative temperature coefficient; Advantageously, therefore, a temperature sensor and a control device can be used as usually already existing and known components of a laundry drying apparatus for forming a fire extinguishing device. These need only be designed so that when fire breaks out in the laundry dryer, especially in the laundry drum, or at a temperature that threatens a fire outbreak, the fire extinguishing device is triggered. A direct detection of the temperature can be done for example via a directed into the laundry drum fire or temperature sensor. An indirect detection of the temperature can be done for example via a fire or temperature sensor, which measures an exhaust air or a supply air in the process channel.

In particular, a fluid, gas or powder can be used as extinguishing medium for extinguishing a fire or fire in addition to a liquid. In addition to a fire completely extinguishing extinguishing media and media, which cool an overheated temperature fall under such extinguishing media.

In particular, the extinguishing medium can be introduced directly into the laundry drum and / or into a process air duct leading into the laundry drum. A direct introduction can be done for example via an opening in a cuff, which separates laundry drum and door from each other.

The extinguishing medium supply device may comprise a liquid container and a filling level sensor for detecting a level of the liquid in the liquid container, in which case preferably the or a further control device is designed and / or programmed to allow a further liquid removal only for operating the fire extinguishing device when falling below a level limit , This ensures that there is always a minimum amount of liquid to extinguish a fire that arises in the liquid container. This is particularly important if the liquid is also used for other purposes, e.g. a Wäscheauffrischung is used.

The extinguishing medium supply device may in particular comprise a chemical propellant charge for conveying the extinguishing medium into the laundry drum. This allows a quick erase, especially when using a blower, which is accepted that such extinguishing agent optionally attacks the textiles located in the laundry drum to allow a deletion of a fire usually not occurring in a safe manner and thus heavier consequential damage to prevent a spreading fire.

The control device may be designed and / or programmed to prevent an air flow into and / or out of the laundry drum when the fire extinguishing device is triggered. In particular, if an air duct with at least one controllable by the control device valve is connected to the laundry drum, such a valve can be controlled to close the air duct when the fire extinguishing device. As a result, a supply of process air to the laundry drum or, preferably, when an exhaust air duct is locked as the air duct, a removal of exhaust air can be prevented, so that no smoke from the laundry drum out into the Environment occurs. In addition, any smoldering or emerging fire suffocates in its own smoke.

A laundry drying device with at least one process air blower which can be deactivated when the fire extinguishing device is triggered is preferred. In a simple manner, the control device can deactivate all such process air blowers, so that a circulation of process air into the laundry drum is omitted. In particular, such a hot running of a process air blower and thus creating a further risk of fire is prevented with closed closure means.

The control device is preferably designed and / or programmed to output a warning signal when the fire-extinguishing device is triggered and / or to interrupt a drying or refreshing operation. A warning signal makes it possible to alert people in the area to the risk of fire when using visual or acoustic signals. When using communication signals, even remote persons or devices can be warned. Interrupting the dryer or refresh operation prevents further damage by e.g. fixed drive units or leaking seals.

In particular, the control device is configured and / or programmed to control a mode when triggering the fire extinguishing device, in the multiple change in a first step at standstill of the laundry drum extinguishing medium is introduced into the laundry drum and in a second step, the laundry drum is rotated. The control device can then preferably be designed and / or programmed to trigger half or an entire revolution of the laundry drum during the second step. As a result, the laundry lying on top is then rotated a maximum of once, the extinguishing medium is distributed and fresh extinguishing medium is applied directly again.

The controller may be configured and / or programmed to drive, upon initiation of the fire extinguisher, a mode of operation in which an increased amount of liquid is introduced into the laundry drum as compared to a refresh mode.

In a corresponding method for operating a clothes drying device, a fire extinguishing device is triggered when detecting a fire arising or arising in a laundry drum of the laundry drying device. It is preferably detected a ruling in the laundry drum temperature and a fire extinguishing device triggered if the detected temperature exceeds a fire threshold.

A particular advantage in providing such a fire extinguishing function is that the construction of the laundry drying apparatus can be made more favorable in terms of cost-intensive materials. Instead of using more expensive, especially metallic materials, a corresponding fire extinguishing construction is provided, so that a fire is not prevented from spreading and giving off smoke, but instead a fire is preferably actively extinguished already at its time of origin. Ideally, existing components of a refresh function can be used, so that no additional effort is required. Even if a corresponding pump or a container for providing an extinguishing medium need to be installed extra, this is even cheaper than the use of expensive materials to prevent the fire spreading. Extinguishing instead of confining a fire also causes unpleasant and possibly even harmful gases and vapors to escape into the environment. If only fluff should be caught in the edge region of the laundry drum within the drum housing on fire, a skipping on laundry in the laundry drum is also avoided, so that in the best case the laundry does not have to be disposed of completely.

• FIG 1 eine vorderseitige Ansicht eines Wäschetrockners mit abgenommener Front sowie schematisch in einem solchen Wäschetrockner installierte Komponenten;
• FIG 2 eine demgegenüber modifizierte Ausführungsform in Teilschnittansicht mit weiteren beispielhaften Komponenten zum Ermöglichen einer Feuerlöschfunktion.

An embodiment will be explained in more detail below with reference to the drawing. Show it:

• FIG. 1 a front view of a laundry dryer with removed front and schematically installed in such a dryer components;
• FIG. 2 a modified embodiment in contrast in part sectional view with further exemplary components for enabling a fire extinguishing function.

FIG. 1 shows a clothes dryer 1 with a laundry drum 2, in which laundry 3 is located. The transition between the tumble dryer 2 rotatably mounted in the laundry drum 2 and a front door of the tumble dryer 1, not shown, forms a flange or a sleeve 4, which is attached to the housing of the tumble dryer 1 between the door and the laundry drum 2. To control various functionalities known per se, the tumble dryer 1 has a control device 5. In known manner, the laundry drum 2 is mounted in a drum housing 6, which forms a seal with respect to the other components of the tumble dryer 1, both in terms of an air process stream and liquid. In order to admit process air into the drum housing 6 and leave out of this, at least one air duct 7 is configured in the tumble dryer 1, wherein the exemplary illustrated air duct 7 as an outlet for warm and moist process air from the drum housing 6 in the vicinity of the tumble dryer 1 or to a Capacitor leads.

Usually, such a tumble dryer 1 is configured with a heating device not shown in the drawing for heating the process air prior to introduction into the laundry drum 2. For controlling the heating process in the heating device, such a tumble dryer 1 has at least one temperature sensor. The temperature sensor can be arranged at a correspondingly suitable position within the process air area in order to detect the temperature prevailing at this location. A temperature signal provided in accordance with the detected temperature is fed from the temperature sensor to the control device 5. This causes a corresponding activation of the heating device in order to heat the process air correspondingly more or less strongly at the location of the heating device.

A basic idea of the tumble dryer 1 is to provide a fire-extinguishing function by utilizing the temperature detection. A correspondingly configured in the tumble dryer 1 fire extinguishing device accordingly consists of a plurality of individual components, in particular the control device 5, a fire sensor, to which preferably at least one temperature sensor is used, and an arrangement for providing an extinguishing medium, which in case of fire in the laundry drum or possibly other Sections within the tumble dryer, in which a deletion function is required, is admitted.

Hereinafter, various possible components suitable for providing a fire sensor function and / or a delete function will be described. If necessary, the individual components can also be used in combination with one another in order to provide redundant systems or to enable a more effective extinguishing function.

FIG. 1 shows by way of example three different fire sensors. As the first exemplary fire sensor, a temperature sensor 8 is sketched, which is arranged on in the sleeve 4. As a result, a temperature is detected directly in the region of the laundry drum 2, in order to be able to output a corresponding temperature signal t to the control device 5 via a line shown only in outline. Another exemplary temperature sensor 9 is shown outside of the laundry drum 2 but within the drum housing 6 and arranged by way of example at the bottom of the drum housing 6. Such a temperature sensor 9 may be, for example, an NTC resistor (thermistor) which detects a negative temperature coefficient and outputs a corresponding temperature signal t to the control device 5.

A still further exemplary fire sensor is arranged as a smoke sensor 10 in the air duct 7 by way of example. With such a smoke sensor 10, the process air can be analyzed for smoke or other gases, which signal a fire or smoldering fire, so that a corresponding smoke signal g can be output to the control device 5.

The control device 5 accordingly receives temperature signals t or a smoke signal g and can perform fire monitoring with the aid of these signals. As soon as the temperature signals t or a corresponding smoke signal g deviate from a customary level, in particular enter areas in which a fire arises within the laundry drum or in the other area of the process air exchange, the control device 5 can accordingly trigger a deletion function. Correspondingly, the control device 5 or a control device provided specifically for a deletion function is configured and / or programmed to trigger the fire extinguishing function or fire extinguishing device in the case of such a detection of a fire that prevails or is produced, in particular, in the laundry drum.

Preferably, temperature or fire threshold values ts assigned to memory which are assigned to the control device 5 and are not shown graphically are stored, which optionally can be adapted for different functions or operating states. In particular, when the corresponding fire threshold value ts is exceeded by the temperature signal t, the control device outputs at least one clear signal Is to corresponding further components of the fire extinguishing device.

Based FIG. 1 For example, a first extinguishing medium supply device 11 is shown. This extinguishing medium supply unit 11 consists of a container for receiving an extinguishing medium 12 and a chemical propellant charge 13 for conveying the extinguishing medium 12 into the laundry drum 2 in the event that the fire extinguishing device is triggered. The extinguishing medium 12 may be exemplified by a gaseous or powdered extinguishing medium. Also, a liquid or fluid quenching medium may be provided by such quenching medium supply means 11.

In accordance with an alternative or additionally usable extinguishing device function, a laundry refreshing device which is already known and may already be used for extinguishing a prevailing or developing fire can also be used. In this case, in particular a liquid container of such a laundry refreshing device is sprayed into the laundry drum 2 via a corresponding spray nozzle 14. The arrangement of such spray nozzles 14 for spraying liquid or other extinguishing medium are preferably arranged so that the extinguishing medium also passes directly to the laundry 3. A preferred arrangement of the spray nozzle 14 is therefore located in the sleeve 4, so that the extinguishing medium does not need to enter as process air through openings in the actual laundry drum wall in the interior of the laundry drum 2, but passes directly into the laundry drum 2 from the door side.

As yet another exemplary extinguishing device, a valve 15 is outlined, which is arranged on the air duct 7 so that a triggering of the fire extinguishing device, the valve 15 by means of the extinguishing signal is for closing the air duct 7 controls. By closing the air channel 7 by means of the valve 15 is another air flow prevented in the air channel 7. In the case of an outlet air channel as the air channel 7 thus the removal of smoke from the laundry drum 2 is prevented, which prevents leakage of smoke into the environment in the case of a leading into the outer space of the laundry dryer 1 outlet air duct. Advantageously, in the laundry drum 2 or in the air duct remaining smoke also causes the resulting fire smothered for lack of oxygen. Another extinguishing function is thus that an air circulation in the process air duct is suppressed and the resulting fire or smoldering fire stifles. In this sense, triggering of the fire-extinguishing device also preferably causes deactivation of process air blowers 16 by the control device 5.

FIG. 2 shows a further exemplary embodiment of a clothes dryer 17. Described are various components and functions in each case with reference to the comments too FIG. 1 , as far as comparable or identical components and functions are described or illustrated.

The tumble dryer 17 is in turn equipped with a control device 18, which is provided and designed as the dryer dedicated control device for controlling its usual functionalities or as an independent control device of a fire extinguishing device. By way of example, an extinguishing medium supply device 19 for storing and in the case of triggering the fire extinguisher for outputting a corresponding extinguishing medium is shown by way of example. Via a temperature sensor 20, for example, a temperature signal t is output to the control device 18. If the temperature signal t exceeds a temperature threshold or fire threshold value ts, a clearing signal Is is triggered accordingly, so that the extinguishing medium supply device 19 is activated.

As an alternative to the deletion medium feeding device 19 outlined, a laundry refreshing device 22 is also sketched, which can likewise be used as a component of a fire extinguishing device. When the fire extinguishing device or a corresponding fire extinguishing function is triggered, a liquid otherwise provided otherwise as a refreshing liquid is then sprayed into the laundry drum 23 by the laundry refreshing device 22.

In order to extinguish an emerging or prevailing fire, a special rotation of the laundry drum 23 is preferably activated by the control device 18. Instead of a multiplicity of successive continuous rotations, the laundry drum 23 is brought to a standstill in a first step in order to introduce extinguishing medium in a second step, so that the extinguishing medium is applied to the laundry 24 located in the laundry drum 23 and lying therein. In a subsequent second step, then a rotation of the laundry drum 23 is activated to turn the laundry 24 and to effect a uniform mixing of the laundry 24 with the introduced extinguishing medium. Preferably, the rotation of the laundry drum 23 takes place only by a half turn until in particular a complete revolution. In this case, the laundry 24 is ideally turned once, so that the previously lying down laundry is now up. Subsequently, the sequence of the first and the second step is repeated as long as the extinguishing medium is available, and / or a prevailing or emerging fire is detected. This causes a uniform mixing of the laundry 24 with the extinguishing medium.

Preferably, when using a liquid container of a Wäscheauffrischungseinrichtung 22, which does not have a connection to a water pipe, a level sensor are provided which signals a level limit to the controller, so that falls below such a level limit further liquid removal for the refresh function is prevented. This ensures that a minimum sufficient amount of liquid always remains in the liquid container for a possibly required fire extinguishing function.

To the extinguishing medium to the desired location, in particular in the laundry drum 2; 23 and on the laundry 3; 24 bring in case the fire extinguishing device is triggered, the extinguishing medium or its liquid can be transported in the case, for example, a Wäscheauffrischungseinrichtung on the pump. In any case, it should preferably be provided that the extinguishing medium can be transported to the source of fire as quickly as possible, so that either a particularly large-sized pump or a separate transport device is provided, which for a rapid transporting the extinguishing medium to the fire is dimensioned and designed.

According to various and also mutually combinable embodiments thus a laundry drying device is equipped with a fire extinguisher or fire extinguishing function. If a fire or a supernaturally high temperature for a current operating condition is detected in the laundry drum of the clothes dryer in particular, a corresponding deletion signal is sent to the refresh system, a fire extinguishing system and / or a blockage of an air duct in order to react accordingly. As a result, in particular a fire-extinguishing medium is sprayed into the laundry drum of the tumble dryer, whereby the high temperature is lowered and / or the fire is extinguished. The detection of a fire or a temperature value higher than a normal temperature can preferably take place via a direct sensor, for example an infrared sensor, or indirect sensors, for example an NTC resistor or a gas sensor.

In particular, it is possible to use a refreshing device known per se, which as components usually has a heater, a pump, a liquid tank, an NTC, hoses, a nozzle and a control device. According to a first refresh function, liquid is introduced into the tank or liquid container, preferably with distilled water being introduced. Alternatively, in variants with a direct water connection pump also directly refresh options of the control device can be selected. Subsequently, clothes are introduced into the laundry drum and then the steam function or refresh function selected. A corresponding program has a duration of, for example, 20 minutes and adds over one liter of water vapor over the laundry in the laundry drum of the tumble dryer. In the case of the refreshing device with a fixed water connection, or in the case of a condensation dryer with a fixed water connection, a theoretically unlimited amount of water can also be supplied, which is particularly advantageous for an extinguishing function.

In order to enable a refresh / delete function, it makes sense that the container for the extinguishing medium is always connected to a fixed water source or at least a sufficient amount of extinguishing medium, in particular water has. Possibly. Also, a separate liquid container may be provided as the extinguishing liquid container adjacent to a container for refreshing liquid. In the event that a fire is detected via the fire sensors, in particular temperature sensors on the top and the bottom of the sleeve, the extinguishing device is activated. In contrast to a refresh program, a deletion program is preferably activated which sprays a larger amount of extinguishing medium or liquid into the laundry drum than compared to a refresh function. In the case of a limited extinguishing medium from a tank, the entire amount of liquid or the extinguishing medium is preferably introduced into the laundry drum, wherein such a process can be slightly extended in time to allow uniform mixing of the extinguishing medium with the laundry. For example, with a standing drum for two minutes, the extinguishing medium can be introduced into the laundry drum, after which the drum for z. B. is set in rotation for 15 seconds before again quenching medium is introduced. The process may preferably last 10 to 15 minutes in the case of a refresh tank for a refresh function.

LIST OF REFERENCE NUMBERS

1

clothes dryer

2

washing drum

3

Laundry

4

cuff

5

control device

6

drum housing

7

air duct

8th

Temperature sensor / infrared sensor

9

Temperature sensor / NTC resistor

10

Fire sensor as smoke sensor

11

Extinguishing medium supply means

12

extinguishing media

13

chemical propellant

14

spray nozzle

15

Valve

16

Process air fan

17

clothes dryer

18

control device

19

Extinguishing medium supply means

20

temperature sensor

21

spray nozzle

22

Laundry refresh device

23

washing drum

24

Laundry

G

smoke signal

t

temperature signal

is

clear signal

ts

Brandschwellwert

Claims (13)

1. Tumble drying device (1; 17), with a laundry drum (2; 23) for receiving textiles and a fire-extinguishing facility (5, 8-16; 8-22), which features:

   - at least one fire sensor (8-10; 20) for detection of a fire in progress or breaking out in the tumble drying device (1), especially in the laundry drum (2; 23), and

   - at least one extinguishing medium supply device (11; 19, 22) for introduction of an extinguishing medium into the tumble drying device (1), especially into the laundry drum (2; 23), on actuation of the fire-extinguishing device,

   characterised in that

   - the extinguishing medium supply device (11;19,22) comprises a laundry freshening device (22), which laundry freshening device (22), to remove odours from textiles, creates mist, droplets or steam from liquid and introduces it into the laundry drum (2, 23), and

   - the extinguishing medium supply device (11, 22; 19) features an extinguishing medium container for provision of an especially gaseous or powdered extinguishing medium and a transport device, especially a fan, for transporting the extinguishing medium into the laundry drum (2) on actuation of the fire-extinguishing device.
2. Tumble drying device (1; 17) according to claim 1, characterised in that the fire-extinguishing device features a control device (5; 18) which is embodied and/or programmed, on detection of a fire in progress or breaking out, to trigger the fire-extinguishing device.
3. Tumble drying device (1; 17) according to claim 2, characterised in that

   - the fire sensor is a temperature sensor (8, 9; 20) for detecting a temperature obtaining in the laundry drum (2; 23) and for outputting a corresponding temperature signal (t) and

   - the control device (5; 18) is embodied and/or programmed to trigger the fire-extinguishing device if the temperature signal (t) exceeds a fire threshold value (ts).
4. Tumble drying device (1; 17) according to claim 3, characterised in that the temperature sensor is an infrared sensor (8) or an NTC thermistor (9).
5. Tumble drying device (1; 17) according to one of the previous claims, characterised in that the fire sensor is arranged on a sleeve (4).
6. Tumble drying device (1;17) according to one of the previous claims, characterised in that the extinguishing medium supply device (11; 19, 22) features a liquid container and a fill level sensor for detecting a fill level of the liquid in the liquid container, wherein the or a further control device (5; 18) is embodied and/or programmed, when the level falls below a fill value threshold, only to allow a further withdrawal of fluid for operation of the fire-extinguishing device.
7. Tumble drying device (1; 17) according to one of the previous claims, characterised in that the extinguishing medium supply device (11, 19) features a chemical propulsion unit (13) for propelling the extinguishing medium (12) into the laundry drum (2).
8. Tumble drying device (1; 17) according to one of claims 2 to 7, characterised in that the control device (5; 18) is embodied and/or programmed, on actuation of the fire-extinguishing device, to suppress an air stream into and/or out of the laundry drum (2).
9. Tumble drying device (1; 17) according to claim 8, characterised in that an air duct (7) with at least one valve (15) able to be controlled by means of the control device is connected to the laundry drum (2) and the valve is able to be activated on actuation of the fire-extinguishing device for closing-off the air duct (7).
10. Tumble drying device (1; 17) according to one of the previous claims, with at least one process air fan (16) able to be deactivated on actuation of the fire-extinguishing device.
11. Tumble drying device (1;17) according to one of claims 2 to 10, characterised in that the control device (5; 18) is embodied and/or programmed, on actuation of the fire-extinguishing device, to output a warning signal and/or to interrupt a drying mode or freshening mode.
12. Tumble drying device (1; 17) according to one of claims 2 to 11, characterised in that the control device (5; 18) is embodied and/or programmed, on actuation of the fire-extinguishing device, to activate an operating mode in which in multiple oscillations in a first step when the laundry drum is at a standstill extinguishing medium is introduced into the laundry drum and in a second step the laundry drum is turned.
13. Tumble drying device (1; 17) according to one of claims 2 to 12, characterised in that the control device (5; 18) is embodied and/or programmed, on actuation of the fire-extinguishing device, to activate an operating mode in which, by comparison with a freshening operating mode, a greater volume of liquid is introduced into the laundry drum.

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