EP1870510B1 - Laundry drying machine comprising a steam generator - Google Patents

Laundry drying machine comprising a steam generator Download PDF

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Publication number
EP1870510B1
EP1870510B1 EP07110729A EP07110729A EP1870510B1 EP 1870510 B1 EP1870510 B1 EP 1870510B1 EP 07110729 A EP07110729 A EP 07110729A EP 07110729 A EP07110729 A EP 07110729A EP 1870510 B1 EP1870510 B1 EP 1870510B1
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EP
European Patent Office
Prior art keywords
drum
steam
condenser
laundry
heating element
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Application number
EP07110729A
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German (de)
French (fr)
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EP1870510A3 (en
EP1870510A2 (en
Inventor
Essaïd RAOUI
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Groupe Brandt SAS
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FagorBrandt SAS
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Priority claimed from FR0605734A external-priority patent/FR2902806B1/en
Priority claimed from FR0605728A external-priority patent/FR2902805B1/en
Application filed by FagorBrandt SAS filed Critical FagorBrandt SAS
Priority to PL07110729T priority Critical patent/PL1870510T3/en
Publication of EP1870510A2 publication Critical patent/EP1870510A2/en
Publication of EP1870510A3 publication Critical patent/EP1870510A3/en
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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/203—Laundry conditioning arrangements

Definitions

  • the present invention relates to a laundry drying machine comprising a steam generator.
  • the invention relates to machines for drying clothes, and more particularly to machines for drying clothes for domestic use.
  • these clothes drying machines have the disadvantage of separating the drive from one or more drying fans to the drum drive to allow the introduction of steam into said rotatably driven drum.
  • the separation of the drive from a fan and the drum makes it possible to stop the circulation of drying air in the drum when steam is introduced into the drum. This stop of the ventilation of the dryer machine makes it possible to maintain smoothing performance of the laundry.
  • introduction of direct steam into the drum presents a risk of burning for the user when the drum access door is opened as well as when a user's hand passes in front of a nozzle.
  • the steam generator continues to introduce steam into the drum after it has stopped and may burn the user's hands if the user opens the drum access door at this time.
  • the steam generator has a certain heating inertia after stopping it and a quantity of residual water remains in said steam generator after stopping a freeze cycle causing the generation of steam introduced into the drum.
  • condensation is caused in the steam introduction pipe in the drum because it is cold, or water from a previous steaming cycle can be introduced into the drum.
  • the laundry items can also be wetted by an excess of water introduced by a pump to a steam generator, particularly in case of drift or dispersion of water flow provided by the pump.
  • the laundry pieces can also be wetted due to a too low heating power of the steam generator or following a dispersion of the supply voltage.
  • the present invention aims to solve the aforementioned drawbacks and to provide a laundry drying machine to reduce the creasing of laundry at the lowest cost and without risk of safety for the user.
  • the present invention is directed to a laundry drying machine comprising a steam generator, a condenser, at least one air circuit, and a drum housed inside a body, said drum containing the washing machine. degrease, said air circuit comprising at least two pipes, at least a first pipe of the air circuit connecting the drum to the condenser, at least a second pipe connecting the condenser to the drum, said at least one second pipe comprising at least one heating element, and at least one fan being placed in one of said at least two pipes of the air circuit.
  • a steam introducing means opens into said at least one second pipe connecting the condenser to the drum, said steam introducing means being placed upstream of said at least one heating element, and said introducing means of steam being placed downstream of the condenser.
  • the dryer machine has a drive of the at least one fan and the simultaneous drum for all cycles implemented by said machine.
  • Said at least one fan and the drum are driven together during the introduction of steam to ensure the smoothing performance of the clothes.
  • the vapor may be mixed with heated air as it passes over the at least one heating element. In this way, the mixture of hot air and steam passes through the laundry items during the rotational drive by the drum.
  • the position of the steam introduction means downstream of the condenser makes it possible to prevent the condensation of part of the steam in said condenser.
  • the energy consumption for the steam generation and the straightening of the laundry is optimized.
  • the steam introduction means opening into said at least one pipe connecting the condenser to the drum is placed in the vicinity of a condensate discharge circuit.
  • a possible flow of water at the outlet of the steam generator can not be poured on said at least one heating element.
  • the water leaving the steam generator is discharged towards a condensate recovery tank.
  • the dryer is protected against a possible short circuit related to a water spill on said at least one heating element.
  • the steam introduction means is connected to a vent pipe so as to allow a flow of water to flow into a condensate condensate collection tank.
  • the condensate evacuation circuit makes it possible to recover a surplus of water supplied to the steam generator where still residual condensas form in a pipe connecting the steam generator to the ventilation duct, in particular at the beginning of a generation cycle. of steam.
  • said at least one heating element is used at half of its power during the introduction of steam into the drum.
  • the half-power preheating of said at least one heating element makes it possible to save energy and to limit the power of the machine to dry the laundry.
  • said at least one heating element limits the temperature inside the drum for better preservation of laundry. In this way, overheating is not caused on the surface of the laundry placed inside the drum.
  • said at least one heating element is used on a single part, said single part used of said at least one heating element being the upstream part.
  • the use of the upstream portion of said at least one heating element 6 makes it possible to avoid condensation on the whole of said at least one heating element 6.
  • the operation of the upstream portion of said at least one element makes it possible to heat the air mixed with the steam, and then this air is introduced into the drum in order to improve the steaming performance of the laundry.
  • This dryer may be a household clothes dryer or a washer-dryer.
  • an overhead loading machine has been illustrated.
  • the present invention applies to all types of machine for drying clothes, including front loading.
  • This dryer 1 comprises a bodywork comprising an access opening inside the bodywork.
  • this access opening is made in an upper portion of the body, and in this example, in an upper plane of the body.
  • An access door is adapted to close this opening of the body of the machine 1, in particular during operation thereof.
  • the access door is pivotally mounted about an axis of rotation integral with the body of the machine 1.
  • the body of the machine 1 is adapted to accommodate a drum 2 which is particularly suitable for drying laundry by a hot air circulation.
  • the drum 2 is rotatable about an axis 3 during the different phases of the drying cycles of the machine.
  • This access door for example formed of two gates and pivotally mounted on the shell of the drum 2, allows to close an opening in said shell of said drum 2.
  • a control panel is also provided in the upper part of the machine 1.
  • the dryer according to the invention comprises all the equipment and means necessary for the implementation of a conventional drying process in such a rotary drum machine.
  • the laundry dryer 1 comprises a steam generator 12 with a water supply by drip.
  • the steam generator 12 is a tube steam generator with a low water flow rate.
  • the diameter of the tube of the steam generator 12 is of the order of 8 mm.
  • a condenser dryer 1 comprises two air circuits.
  • a first air circuit is commonly called hot air circuit 4 and a second air circuit called cold air circuit 5.
  • the hot air circuit 4 is in a closed loop and the air heated by at least one heating element 6.
  • the heated air passes through the laundry contained in the drum 2 and the heated air is charged with the moisture contained by the laundry. During this phase, the air is cooled from a temperature of about 110 ° C to a temperature of about 70 ° C.
  • the heated and moist air passes through a filter 7 placed at a discharge outlet of the drum 2 to recover the lint contained in said heated and moist air.
  • a fan 8 circulates the hot and humid air inside a condenser 9. The hot and humid air is cooled in tubes of the condenser 9 and the humidity of the air is condensed. The condenser 9 is cooled by heat exchange with ambient air. Then, the air is again heated by the at least one heating element 6.
  • the laundry dryer 1 may also be provided with a plate condenser 9 in place of a condenser 9 with tubes.
  • the cold air circuit 5 is in an open circuit where ambient air is sucked by a fan 10 at the rear of the dryer 1.
  • the fan 10 propels the ambient air into the condenser 9 on the floor. outside the tubes of said condenser 9 in order to cool it.
  • the ambient air heated in the condenser 9 is discharged into a room through a front face of the dryer 1.
  • a motor 11 allows the driving of the drum 2 for brewing the laundry with an alternating rotation to prevent the knotting of the laundry. Said motor 11 can also drive the two fans 8 and 10.
  • Both fans 8 and 10 are centrifugal technology.
  • the air flow is greater in a positive direction relative to a reverse direction said negative.
  • the air flow factor between the positive direction and the negative direction of the fans 8 and 10 is substantially of the order of 3.
  • the water recovered by the condenser 9 can be raised by a pump to a tank placed in the upper part of the machine 1, or recovered by gravity in a tray at the bottom of the machine 1 according to said dryer machine 1 .
  • the dryer 1 is also equipped with a steam generator 12 supplied with water by a pump from a tank. During the implementation of a laundry cycle, the steam produced by the steam generator 12 is injected into the hot air circuit 4 to moisten the laundry in order to straighten it.
  • the tank of the steam generator 12 can be filled by the user with mains water, condensate water or demineralised water.
  • the laundry cycle unwinds with a rotation of the drum 2 alternating to avoid the knotting of the laundry.
  • the rotation of the drum 2 containing the laundry to be straightened makes it possible to stir the laundry and to create an exchange between the moist air and the steam and with the laundry.
  • the load of laundry introduced into the drum 2 of the dryer 1 is mainly dried and creased at the start of the laundry cycle.
  • the method of straightening the laundry in a dryer 1 comprises a steam generator 12, a condenser 9 and a drum 2 housed inside a body.
  • Said drum 2 contains the laundry to be stripped and is connected to said condenser 9 by a pipe 13.
  • Said condenser 9 is connected to at least one fan 8 by a pipe 14.
  • said at least one fan 8 is connected to said drum 2 by a pipe 15.
  • the filling of the tank of the steam generator 12 can be filled at any time with the method of unwinding the laundry according to the invention. This filling is possible thanks to the steam generator 12 supplied with water drip through an inlet opening.
  • the steam generator 12 may be a closed heating tank at its lower part.
  • the steam generator 12 includes an outlet opening for directing the generated steam to the hot air circuit 4 of the dryer 1.
  • the first phase of the laundry stripping process involves heating the steam generator 12 so that the water introduced into it falls on a heated surface and the water is vaporized instantly.
  • the structure of said machine, in particular the drum 2 must be sufficiently hot to prevent condensation of the steam on the machine.
  • Said at least one heating element 6 could be degraded by the presence of water. In particular in the case where said at least one heating element 6 is unshielded.
  • Said at least one heating element 6 is used at half of its power during the second preheating phase of the drum 2.
  • said at least one heating element 6 can operate over a short period of time, which can last between two and ten minutes, depending on the parameters of the anti-crease cycle, such as the type of linen and its humidity.
  • the steam generation time during a wrinkle cycle can be of the order of 13 minutes.
  • said at least one heating element 6 is used on a single part and in particular that placed in the upstream part in the hot air circuit 4.
  • the use of the upstream part of said at least one heating element 6 makes it possible to avoid the condensation on all of said at least one heating element 6.
  • the upstream portion of said at least one heating element 6 corresponds to the first lower half of said heating element. minus one heating element 6 illustrated in the figure 1 .
  • the use of the half power of said at least one heating element 6 saves energy and limits the power of the machine 1.
  • said at least one heating element limits the temperature inside the drum for better preservation of laundry. In this way, overheating is not caused on the surface of the laundry placed inside the drum.
  • the drum 2 is rotated to stir the laundry and homogenize the introduction of steam into said drum 2 during the third steam generation and steam circulation phase of the steam generator 12 to said drum 2.
  • the hot air circuit 4 makes it possible to minimize steam condensation in order to optimize the consumption of water and the supply of thermal energy.
  • the hot air circuit 4 makes it possible to condense as little steam as possible, coming from the drum 2, in order to consume a minimum quantity of water and to limit the supply of thermal energy, and to reduce the noise of the machine to drying the laundry 1 of the order of 2dB.
  • the means used to reduce the efficiency of the condenser 9 is to reduce the flow of ambient air to limit the heat exchange.
  • the air flow is limited and therefore the efficiency of the condenser 9 is reduced.
  • the condenser 9 is cooled less so the steam present in the hot air circuit 4 is less condensed. Said steam can then be reinjected into the drum 2 of the dryer 1.
  • the efficiency of the condenser 9 with a fan 10 of the cold air circuit 5 rotating in the positive direction is of the order of 70%.
  • the power exchanged in the condenser 9 is of the order of 2000W.
  • the change of direction of rotation of the drum 2 also makes it possible to modify the direction of rotation of the fan 10 and thus to modify the flow of ambient air passing through the condenser 9.
  • a lower air flow generated by the fan 10 creates an exchange less heat between moist warm air and ambient air.
  • the efficiency of the condenser 9 is of the order of 30%.
  • the power exchanged in the condenser 9 is of the order of 800W.
  • the fan 8 of the hot air circuit 4 is also driven by the motor 11 and said fan 8 also rotating in the opposite direction.
  • the hot air circuit 4 has a lower air flow.
  • the power of said at least one heating element 6 is lower to obtain a temperature at the outlet of the pipe 15 substantially identical.
  • a lower hot air flow rate also makes it possible to limit the risk of entrainment of water droplets that can be discharged with the steam in the hot air circuit 4 and consequently to limit the risk of short circuiting of said at least one a heating element 6.
  • the steam generation can be interrupted during the rotation of the drum 2 in said positive direction.
  • the cooling by the condenser 9 is also less important, hence a minimized heat exchange.
  • the steam is introduced and put into circulation in a hot air circuit 4 of the dryer 1 during the third steam generation and steam circulation phase of the steam generator 12 to the drum 2.
  • the introduction of steam is regulated by the on and off times of the steam generator 12.
  • the stopping time of the steam generator 12 is present to stabilize the temperature of said steam generator 12 by cooling it with water drip into it.
  • the water introduced dropwise is at ambient temperature and cools the steam generator being hot. During water supply stopping times in the steam generator, the latter heats up. Stopping water introduction times are necessary to cause the temperature rise of the steam generator. If these water supply stoppages are not provided, the steam generator discharges water droplets into the hot air circuit 4.
  • the water is not introduced in liquid form into the hot air circuit 4 of the dryer 1 but only in vapor form.
  • the flow of water supplied to said steam generator 12 can be continuous without causing a flow of water into the hot air circuit 4.
  • the condenser 9 operates at its maximum efficiency during the fourth phase of evacuation of the steam from the drum 2 and cooling the laundry contained in said drum 2.
  • the fans 8 and 10 operate in the positive direction.
  • This fourth phase of the laundry degreasing process makes it possible to remove the laundry from the drum 2 of the dryer 1 without the evacuation of a cloud of steam when the access door of said machine 1 is opened.
  • the fourth phase of the method avoids the evacuation of steam condensing on a control panel (not shown) on the front of the dryer machine 1.
  • Said control panel is generally equipped with an electronic card that can be damaged by steam or moisture.
  • the fourth phase of the method avoids the user to burn his hands by removing the laundry drum 2.
  • the first phase of the laundry degreasing process has a duration of the order of 1 minute to 3 minutes.
  • the duration of the first phase of the laundry degreasing process is dependent on the type of steam generator and its power.
  • the second phase of preheating of the drum 2 by at least one heating element 6 and a circulation of hot air generated by said at least one fan 8 has a duration of the order of 1 minute to 3 minutes.
  • the first phase and the second phase can be performed simultaneously.
  • the second phase of the laundry unwinding process extends from about one minute to three minutes with respect to said first phase.
  • the third phase of steam generation and steam circulation of the steam generator 12 to the drum 2 has a duration of the order of 10 minutes.
  • the fourth phase of evacuating the steam from the drum 2 and cooling the laundry contained in said drum 2 has a duration of the order of two minutes.
  • the amount of water injected at each cycle of straightening of the laundry in the steam generator 12 is of the order of 300mL to 400mL.
  • the method of straightening laundry in a condensing dryer 1 comprises a steam generator 12, a condenser 9 and a drum 2 housed inside a body.
  • Said drum 2 contains the laundry to be stripped and is connected to said condenser 9 by a pipe 13.
  • Said condenser 9 is connected to at least two fans 8 and 10 each by a pipe 14 and 16.
  • said at least one fan 8 is connected to said drum 2 by a pipe 15.
  • This brewing phase of the laundry makes it possible to limit the cooling of the condenser 9 and consequently the condensation of the steam.
  • the consumption of water and energy is optimized during the implementation of a laundry cycle by steam steaming.
  • the duration of the anti-crease cycle is also optimized.
  • Said at least one fan 10 operates periodically and predominantly in the opposite direction of rotation with respect to the operating rotation direction having a maximum flow rate during the brewing phase of the laundry to obtain the minimum efficiency of the condenser 9.
  • the efficiency of the condenser 9 is minimum to prevent condensation of the steam as it passes through said condenser 9.
  • the operating time ratio of said at least one fan 10 in the direction of rotation having a maximum flow rate relative to the reverse direction of rotation is between 1/5 th and 1/15 th , and preferably of the order of 1 / 10 th .
  • Said at least one heating element 6 operates at half of its power during the brewing phase of the laundry, and preferably at a power of the order of 1000W.
  • Said at least one heating element 6 can operate alternating periods of operation and stop during its use for a steaming cycle using the steam generation.
  • Said at least one heating element 6 is located in a pipe 15 connecting said at least one fan 8 and the drum 2.
  • said at least one heating element 6 is used on a single part and in particular that placed in the upstream part in the hot air circuit 4.
  • the use of the upstream part of said at least one heating element 6 makes it possible to avoid condensation of all of said at least one heating element 6.
  • the upstream portion of said at least one heating element 6 corresponds to the first lower half of said at least one heating element 6 illustrated in FIG. figure 1 .
  • the dryer 1 comprises a steam generator 12 which can water is supplied by a pump 18 from a tank 19. During a program for ironing the laundry contained in the drum 2, steam is produced by the steam generator 12 and injected into the pipe 15 of the circuit. hot air 4 to straighten the clothes.
  • the steam introduction means opens into the pipe 15, and said steam introduction means is placed between the condenser 9 and the at least one heating element 6.
  • the introduction of steam is carried out in the pipe 15 and in the vicinity a water flow channel in the direction of a condensate recovery tank 17.
  • This condensate recovery tank 17 can also be used to collect the condensates of the condenser 9.
  • the means for introducing steam from the steam generator 12 opens into the pipe 15 connecting the at least one fan 8 to the drum 2.
  • the steam introduction means opening into the pipe 15 connecting said at least one fan 8 to the drum 2 is placed downstream of the condenser 9 to limit condensation in said condenser 9.
  • the steam introduction means opening into the pipe 15 connecting said at least one fan 8 to the drum 2 is placed close to a condensate discharge circuit to allow the evacuation of water droplets formed during generation. of steam in said condensate circuit.
  • the quantity of water collected by a condensate recovery tank 17 from the steam generator 12 may be of the order of 30 g during a laundry cycle.
  • the steam introduction means opening into the pipe 15 connecting said at least one fan 8 to the drum 2 is placed upstream of said at least one heating element 6 to prevent water droplets from forming, the latter not may fall on said at least one heating element 6.
  • the distance between the steam introduction means and said at least one heating element 6 is preferably of the order of 500 mm.
  • the steam generator 12 is placed above the pipe 15 of the hot air circuit 4.
  • the steam introduction means opening into the pipe 15 is placed near the steam generator 12.
  • the means of introduction of steam can be achieved by a pipe 20 connecting the steam generator 12 to the pipe 15.
  • the length of this pipe 20 is short, thus minimizing the costs of obtaining the machine 1 and avoid condensation of steam in said pipe.
  • the length of the pipe 20 is between 50 mm and 300 mm, and preferably of the order of 110 mm.
  • the fan 8 of the hot air circuit can be placed downstream of the condenser 9, as illustrated in FIG. figure 1 . However, this fan 8 can be placed upstream of said condenser 9 without modifying the operation of the dryer according to the invention as illustrated in figure 2 .
  • the steam introduction means opens into a pipe 14 or a pipe 15 connecting the condenser 9 to the drum 2.
  • the fan 8 can be placed between the condenser 9 and the drum 2 in a pipe 14 or be between the drum 2 and the condenser 9 in a pipe 13.
  • the positioning of the fan 8 is either upstream or downstream of the condenser 9.
  • the method of degreasing the laundry according to the invention makes it possible to obtain a cycle of short duration, homogeneity of the diffusion of the vapor over the entire surface of the textiles, to consume a minimum quantity of water and to adapt to the mass of the linen.
  • This method of straightening the laundry also allows to be able to recharge water in the steam generator tray during the cycle or directly after the end of the cycle without risk of deterioration of the machine comprising a steam generator with a water supply drop at drop.

Abstract

The machine for drying domestic clothes, comprises a steam generator, a condenser (9), an air network, a drum (2) placed inside a body of the machine, and a steam introduction unit emerges from second conduits connected from the condenser to the drum. The drum contains steaming cloths. The air network comprises a first conduit connected from the drum to the condenser, second conduits connected from the condenser to the drum having a heating element (6), and a ventilator (10) placed within the conduits. The steam introduction unit is placed in an upstream of the heating element. The machine for drying domestic clothes, comprises a steam generator, a condenser (9), an air network, a drum (2) placed inside a body of the machine, and a steam introduction unit emerges from second conduits connected from the condenser to the drum. The drum contains steaming cloths. The air network comprises a first conduit connected from the drum to the condenser, second conduits connected from the condenser to the drum having a heating element (6), and a ventilator (10) placed within the conduits. The steam introduction unit is placed in an upstream of the heating element and in a downstream of the condenser. The second conduits connected from the condenser to the drum are placed near a condensation evacuation circuit. The heating element is used in half-power during an introduction of the steam into the drum.

Description

La présente invention concerne une machine à sécher le linge comprenant un générateur de vapeur.The present invention relates to a laundry drying machine comprising a steam generator.

De manière générale, l'invention concerne les machines à sécher le linge, et plus particulièrement les machines à sécher le linge à usage domestique.In general, the invention relates to machines for drying clothes, and more particularly to machines for drying clothes for domestic use.

On connaît d'une part des machines à sécher le linge à chargement frontal qui proposent une introduction de vapeur directe dans un tambour. La vapeur est introduite au travers d'une conduite reliant un générateur de vapeur au tambour directement. Cette conduite traverse une gaine reliant le tambour à la carrosserie de la machine. Le générateur de vapeur est généralement alimenté en eau par une pompe. Une telle machine est divulguée dans le document EP 1666655 .There are known on the one hand front loading laundry machines which provide a direct steam introduction into a drum. The steam is introduced through a pipe connecting a steam generator to the drum directly. This pipe passes through a sheath connecting the drum to the body of the machine. The steam generator is usually supplied with water by a pump. Such a machine is disclosed in the document EP 1666655 .

Cependant, ces machines à sécher le linge présentent l'inconvénient de séparer l'entraînement d'un ou de plusieurs ventilateurs de séchage à l'entraînement du tambour afin de permettre l'introduction de vapeur dans ledit tambour entraîné en rotation. La séparation de l'entraînement d'un ventilateur et du tambour permet d'arrêter la circulation d'air de séchage dans le tambour lors de l'introduction de vapeur dans le tambour. Cet arrêt de la ventilation de la machine à sécher le linge permet de maintenir des performances de défroissage du linge.However, these clothes drying machines have the disadvantage of separating the drive from one or more drying fans to the drum drive to allow the introduction of steam into said rotatably driven drum. The separation of the drive from a fan and the drum makes it possible to stop the circulation of drying air in the drum when steam is introduced into the drum. This stop of the ventilation of the dryer machine makes it possible to maintain smoothing performance of the laundry.

Si ces machines à sécher le linge ne disposent pas d'une telle séparation de l'entraînement d'un ventilateur et du tambour, elles ne permettent pas de défroisser le linge par la vapeur puisque celle-ci est directement aspirée de l'introduction de vapeur dans le tambour vers des ouvertures de ventilation permettant le passage de l'air de séchage. Par conséquent, les pièces de linge contenues dans le tambour ne sont pas traversées par la vapeur d'où des performances de défroissage faibles.If these clothes drying machines do not have such a separation of the drive of a fan and the drum, they do not make it possible to straighten the laundry by the steam since it is directly sucked from the introduction of steam in the drum to ventilation openings allowing the passage of drying air. Therefore, the laundry items contained in the drum are not traversed by the steam resulting in low steaming performance.

La séparation de l'entraînement d'un ou plusieurs ventilateurs et du tambour nécessite d'utiliser un moteur d'entraînement différent pour le ou les ventilateurs et pour le tambour, ou encore d'associer un dispositif de découplage du ou des ventilateurs et du tambour lors de la phase d'introduction de vapeur. Par conséquent, de telles machines à sécher le linge provoquent un surcoût pour l'obtention de celles-ci. Les machines à sécher le linge comprenant un moteur supplémentaire provoquent également un niveau de bruit plus important.The separation of the drive from one or more fans and the drum requires the use of a different drive motor for the fan (s) and the drum, or to associate a decoupling device of the fan (s) and the fan. drum during the steam introduction phase. Therefore, such clothes drying machines cause an additional cost to obtain them. Laundry drying machines with an additional motor also cause a higher noise level.

Par ailleurs, une introduction de vapeur directe dans le tambour présente un risque de brûlure pour l'utilisateur lors de l'ouverture de la porte d'accès au tambour ainsi que lors du passage d'une main de l'utilisateur devant une buse de sortie de vapeur dans le tambour par un jet de vapeur sortant de ladite buse. Le générateur de vapeur continue à introduire de la vapeur dans le tambour après son arrêt et peut provoquer une brûlure des mains de l'utilisateur si ce dernier ouvre la porte d'accès du tambour à ce moment. Le générateur de vapeur présente une certaine inertie de chauffe après l'arrêt de celui-ci et une quantité d'eau résiduelle reste dans ledit générateur de vapeur après l'arrêt d'un cycle de défroissage provoquant la génération de vapeur introduite dans le tambour.Moreover, introduction of direct steam into the drum presents a risk of burning for the user when the drum access door is opened as well as when a user's hand passes in front of a nozzle. discharging steam into the drum by a jet of steam exiting said nozzle. The steam generator continues to introduce steam into the drum after it has stopped and may burn the user's hands if the user opens the drum access door at this time. The steam generator has a certain heating inertia after stopping it and a quantity of residual water remains in said steam generator after stopping a freeze cycle causing the generation of steam introduced into the drum.

Ces machines à sécher le linge présentent également l'inconvénient de provoquer des taches d'eau sur les pièces de linge.These clothes drying machines also have the disadvantage of causing water stains on the laundry items.

En début de cycle de défroissage du linge par de la vapeur, une condensation est provoquée dans la conduite d'introduction de vapeur dans le tambour car celle-ci est froide, ou encore de l'eau d'un cycle de défroissage précédent peut être introduite dans le tambour.At the beginning of the steaming cycle of the laundry, condensation is caused in the steam introduction pipe in the drum because it is cold, or water from a previous steaming cycle can be introduced into the drum.

Les pièces de linge peuvent également être mouillées par un surplus d'eau introduit par une pompe à un générateur de vapeur, notamment en cas de dérive ou de dispersion de débit d'eau fourni par la pompe.The laundry items can also be wetted by an excess of water introduced by a pump to a steam generator, particularly in case of drift or dispersion of water flow provided by the pump.

Les pièces de linge peuvent en outre être mouillées suite à une puissance de chauffe trop faible du générateur de vapeur ou encore suite à une dispersion de la tension d'alimentation.The laundry pieces can also be wetted due to a too low heating power of the steam generator or following a dispersion of the supply voltage.

La présente invention a pour but de résoudre les inconvénients précités et de proposer une machine à sécher le linge permettant de réduire le froissage du linge au moindre coût et sans risque de sécurité pour l'utilisateur.The present invention aims to solve the aforementioned drawbacks and to provide a laundry drying machine to reduce the creasing of laundry at the lowest cost and without risk of safety for the user.

A cet effet, la présente invention vise une machine à sécher le linge comprenant un générateur de vapeur, un condenseur, au moins un circuit d'air, et un tambour logé à l'intérieur d'une carrosserie, ledit tambour contenant le linge à défroisser, ledit circuit d'air comprenant au moins deux conduites, au moins une première conduite du circuit d'air reliant le tambour au condenseur, au moins une seconde conduite reliant le condenseur au tambour, ladite au moins une seconde conduite comprenant au moins un élément chauffant, et au moins un ventilateur étant placé dans une desdites au moins deux conduites du circuit d'air.For this purpose, the present invention is directed to a laundry drying machine comprising a steam generator, a condenser, at least one air circuit, and a drum housed inside a body, said drum containing the washing machine. degrease, said air circuit comprising at least two pipes, at least a first pipe of the air circuit connecting the drum to the condenser, at least a second pipe connecting the condenser to the drum, said at least one second pipe comprising at least one heating element, and at least one fan being placed in one of said at least two pipes of the air circuit.

Selon l'invention, un moyen d'introduction de vapeur débouche dans ladite au moins une seconde conduite reliant le condenseur au tambour, ledit moyen d'introduction de vapeur étant placé en amont dudit au moins un élément chauffant, et ledit moyen d'introduction de vapeur étant placé en aval du condenseur.According to the invention, a steam introducing means opens into said at least one second pipe connecting the condenser to the drum, said steam introducing means being placed upstream of said at least one heating element, and said introducing means of steam being placed downstream of the condenser.

Ainsi, la machine à sécher le linge a un entraînement dudit au moins un ventilateur et du tambour simultané pour tous les cycles mis en oeuvre par ladite machine. Ledit au moins un ventilateur et le tambour sont entraînés ensemble au cours de l'introduction de vapeur permettant de garantir les performances de défroissage des pièces de linge. La vapeur peut être mélangée à de l'air chauffé lors du passage sur ledit au moins un élément chauffant. De cette manière, le mélange d'air chaud et de vapeur traverse les pièces de linge lors de l'entraînement en rotation par le tambour.Thus, the dryer machine has a drive of the at least one fan and the simultaneous drum for all cycles implemented by said machine. Said at least one fan and the drum are driven together during the introduction of steam to ensure the smoothing performance of the clothes. The vapor may be mixed with heated air as it passes over the at least one heating element. In this way, the mixture of hot air and steam passes through the laundry items during the rotational drive by the drum.

Par ailleurs, aucun risque de brûlure de l'utilisateur n'est possible puisque la vapeur est introduite dans le tambour par la ventilation générée au travers d'une conduite reliant un condenseur audit tambour. Le générateur de vapeur est ainsi éloigné du tambour et ne permettant pas une circulation de vapeur jusqu'audit tambour. En outre, la vapeur est diffuse dans l'air véhiculé dans la conduite de ventilation débouchant dans le tambour. Une machine à sécher le linge ne présente pas de risque de brûlure par un jet de vapeur introduit directement dans le tambour.Moreover, no risk of burning the user is possible since the steam is introduced into the drum by the ventilation generated through a pipe connecting a condenser to said drum. The steam generator is thus moved away from the drum and does not allow a flow of steam to said drum. In addition, the vapor is diffused into the air conveyed in the ventilation duct opening into the drum. A clothes drying machine does not present a risk of burning by a jet of steam introduced directly into the drum.

La position du moyen d'introduction de vapeur en aval du condenseur permet d'éviter la condensation d'une partie de la vapeur dans ledit condenseur. Ainsi, la consommation d'énergie pour la génération de vapeur et le défroissage du linge est optimisée.The position of the steam introduction means downstream of the condenser makes it possible to prevent the condensation of part of the steam in said condenser. Thus, the energy consumption for the steam generation and the straightening of the laundry is optimized.

Selon une caractéristique préférée de l'invention, le moyen d'introduction de vapeur débouchant dans ladite au moins une conduite reliant le condenseur au tambour est placé à proximité d'un circuit d'évacuation des condensas.According to a preferred feature of the invention, the steam introduction means opening into said at least one pipe connecting the condenser to the drum is placed in the vicinity of a condensate discharge circuit.

Ainsi, un éventuel écoulement d'eau à la sortie du générateur de vapeur ne peut être déversé sur ledit au moins un élément chauffant. L'eau sortant du générateur de vapeur est évacuée en direction d'un bac de récupération des condensas. De cette manière, la machine à sécher le linge est protégée contre un éventuel court-circuit lié à un déversement d'eau sur ledit au moins un élément chauffant.Thus, a possible flow of water at the outlet of the steam generator can not be poured on said at least one heating element. The water leaving the steam generator is discharged towards a condensate recovery tank. In this way, the dryer is protected against a possible short circuit related to a water spill on said at least one heating element.

Le moyen d'introduction de vapeur est relié à une conduite de ventilation de sorte à permettre à un écoulement d'eau de se déverser dans un bac de récupération des condensas du condenseur.The steam introduction means is connected to a vent pipe so as to allow a flow of water to flow into a condensate condensate collection tank.

Le circuit d'évacuation des condensas permet de récupérer un surplus d'eau fourni au générateur de vapeur où encore des condensas résiduels se formant dans un tuyau reliant le générateur de vapeur à la conduite de ventilation, notamment au début d'un cycle de génération de vapeur.The condensate evacuation circuit makes it possible to recover a surplus of water supplied to the steam generator where still residual condensas form in a pipe connecting the steam generator to the ventilation duct, in particular at the beginning of a generation cycle. of steam.

Selon une autre caractéristique préférée de l'invention, ledit au moins un élément chauffant est utilisé à la moitié de sa puissance lors de l'introduction de vapeur dans le tambour.According to another preferred feature of the invention, said at least one heating element is used at half of its power during the introduction of steam into the drum.

Ainsi, le préchauffage à demi puissance dudit au moins un élément chauffant permet de réaliser une économie d'énergie et de limiter la puissance de la machine à sécher le linge.Thus, the half-power preheating of said at least one heating element makes it possible to save energy and to limit the power of the machine to dry the laundry.

En outre, le fonctionnement dudit au moins un élément chauffant à la moitié de sa puissance permet de limiter la température à l'intérieur du tambour pour une meilleure préservation du linge. De cette manière, une surchauffe n'est pas provoquée sur la surface du linge placé à l'intérieur du tambour.In addition, the operation of said at least one heating element to half of its power limits the temperature inside the drum for better preservation of laundry. In this way, overheating is not caused on the surface of the laundry placed inside the drum.

Selon une autre caractéristique préférée de l'invention, ledit au moins un élément chauffant est utilisé sur une seule partie, ladite seule partie utilisée dudit au moins un élément chauffant étant la partie amont.According to another preferred feature of the invention, said at least one heating element is used on a single part, said single part used of said at least one heating element being the upstream part.

L'utilisation de la partie amont dudit au moins un élément chauffant 6 permet d'éviter la condensation sur la totalité dudit au moins un élément chauffant 6.The use of the upstream portion of said at least one heating element 6 makes it possible to avoid condensation on the whole of said at least one heating element 6.

Le fonctionnement de la partie amont dudit au moins un élément permet de chauffer l'air mélangé avec la vapeur puis cet air est introduit dans le tambour afin d'améliorer les performances de défroissage du linge.The operation of the upstream portion of said at least one element makes it possible to heat the air mixed with the steam, and then this air is introduced into the drum in order to improve the steaming performance of the laundry.

D'autres particularités et avantages de l'invention apparaîtront encore dans la description ci-après.Other features and advantages of the invention will become apparent in the description below.

Aux dessins annexés, donnés à titre d'exemples non limitatifs :

  • la figure 1 représente une vue schématique en coupe d'une machine à sécher le linge dans un premier mode de réalisation conforme à l'invention ; et
  • la figure 2 représente une vue schématique en coupe d'une machine à sécher le linge dans un second mode de réalisation conforme à l'invention.
In the accompanying drawings, given as non-limiting examples:
  • the figure 1 is a schematic sectional view of a dryer in a first embodiment according to the invention; and
  • the figure 2 is a schematic sectional view of a dryer in a second embodiment according to the invention.

On va décrire tout d'abord en référence à la figure 1 une machine à sécher le linge 1 équipée d'un générateur de vapeur.We will first describe with reference to the figure 1 a dryer 1 equipped with a steam generator.

Cette machine à sécher le linge peut être une machine à sécher le linge à usage domestique ou une lavante-séchante.This dryer may be a household clothes dryer or a washer-dryer.

On a illustré sur ce mode de réalisation une machine à chargement par le dessus. Bien entendu, la présente invention s'applique à tous les types de machine à sécher le linge, et notamment à chargement frontal.In this embodiment, an overhead loading machine has been illustrated. Of course, the present invention applies to all types of machine for drying clothes, including front loading.

Cette machine à sécher le linge 1 comporte une carrosserie comprenant une ouverture d'accès à l'intérieur de la carrosserie. Dans les machines à chargement par le dessus, cette ouverture d'accès est réalisée dans une portion supérieure de la carrosserie, et dans cet exemple, dans un plan supérieur de la carrosserie.This dryer 1 comprises a bodywork comprising an access opening inside the bodywork. In top loading machines, this access opening is made in an upper portion of the body, and in this example, in an upper plane of the body.

Une porte d'accès est adaptée à obturer cette ouverture de la carrosserie de la machine 1, notamment lors du fonctionnement de celle-ci.An access door is adapted to close this opening of the body of the machine 1, in particular during operation thereof.

Dans cet exemple de réalisation, et de manière nullement limitative, la porte d'accès est montée pivotante autour d'un axe de rotation solidaire de la carrosserie de la machine 1.In this embodiment, and in no way limiting, the access door is pivotally mounted about an axis of rotation integral with the body of the machine 1.

La carrosserie de la machine 1 est adaptée à loger un tambour 2 qui est adapté notamment à sécher le linge par une circulation d'air chaud. Le tambour 2 est mobile en rotation autour d'un axe 3 lors des différentes phases des cycles de séchage de la machine.The body of the machine 1 is adapted to accommodate a drum 2 which is particularly suitable for drying laundry by a hot air circulation. The drum 2 is rotatable about an axis 3 during the different phases of the drying cycles of the machine.

On notera que la figure est schématique et que de nombreux organes nécessaires au fonctionnement de la machine ont été omis et n'ont pas besoin d'être décrits en détail ici.Note that the figure is schematic and that many organs necessary for the operation of the machine have been omitted and do not need to be described in detail here.

Afin de permettre l'introduction et le retrait du linge à l'intérieur du tambour rotatif 2, celui-ci comporte de manière connue une porte. Cette porte d'accès, par exemple formée de deux portillons et montés en pivotement sur la virole du tambour 2, permet de fermer une ouverture ménagée dans ladite virole dudit tambour 2.To allow the introduction and removal of laundry inside the rotating drum 2, it comprises in a known manner a door. This access door, for example formed of two gates and pivotally mounted on the shell of the drum 2, allows to close an opening in said shell of said drum 2.

Un tableau de commande est également prévu en partie supérieure de la machine 1.A control panel is also provided in the upper part of the machine 1.

Seuls les moyens spécifiques à la mise en oeuvre du procédé de défroissage du linge conforme à l'invention seront décrits ci-après.Only the specific means for the implementation of the method of unwinding the laundry according to the invention will be described below.

Bien entendu, la machine à sécher le linge conforme à l'invention comporte l'ensemble des équipements et moyens nécessaires à la mise en oeuvre d'un processus de séchage classique dans une telle machine à tambour rotatif.Of course, the dryer according to the invention comprises all the equipment and means necessary for the implementation of a conventional drying process in such a rotary drum machine.

La machine à sécher le linge 1 comprend un générateur de vapeur 12 avec une alimentation en eau par goutte à goutte.The laundry dryer 1 comprises a steam generator 12 with a water supply by drip.

En pratique, le générateur de vapeur 12 est un générateur de vapeur à tube avec un débit d'eau faible. Le diamètre du tube du générateur de vapeur 12 est de l'ordre de 8mm.In practice, the steam generator 12 is a tube steam generator with a low water flow rate. The diameter of the tube of the steam generator 12 is of the order of 8 mm.

On va décrire à présent une machine à sécher le linge adapté à mettre en oeuvre le procédé de défroissage du linge conforme à l'invention, en référence à la figure 1.We will now describe a drying machine adapted to implement the method of degreasing the laundry according to the invention, with reference to the figure 1 .

Une machine à sécher le linge 1 à condenseur comprend deux circuits d'air. Un premier circuit d'air est communément appelé circuit d'air chaud 4 et un second circuit d'air appelé circuit d'air froid 5.A condenser dryer 1 comprises two air circuits. A first air circuit is commonly called hot air circuit 4 and a second air circuit called cold air circuit 5.

Le circuit d'air chaud 4 est en boucle fermée et l'air chauffé par au moins un élément chauffant 6. L'air chauffé traverse le linge contenu dans le tambour 2 et l'air chauffé se charge de l'humidité contenue par le linge. Lors de cette phase, l'air est refroidi d'une température de l'ordre de 110°C à une température de l'ordre de 70°C.The hot air circuit 4 is in a closed loop and the air heated by at least one heating element 6. The heated air passes through the laundry contained in the drum 2 and the heated air is charged with the moisture contained by the laundry. During this phase, the air is cooled from a temperature of about 110 ° C to a temperature of about 70 ° C.

L'air chauffé et humide traverse un filtre 7 placé à une sortie d'évacuation du tambour 2 pour récupérer les peluches contenues dans ledit air chauffé et humide. Un ventilateur 8 fait circuler l'air chaud et humide à l'intérieur d'un condenseur 9. L'air chaud et humide est refroidi dans des tubes du condenseur 9 et l'humidité de l'air est condensée. Le condenseur 9 est refroidi par échange de chaleur avec de l'air ambiant. Puis, l'air est de nouveau chauffé par ledit au moins un élément chauffant 6.The heated and moist air passes through a filter 7 placed at a discharge outlet of the drum 2 to recover the lint contained in said heated and moist air. A fan 8 circulates the hot and humid air inside a condenser 9. The hot and humid air is cooled in tubes of the condenser 9 and the humidity of the air is condensed. The condenser 9 is cooled by heat exchange with ambient air. Then, the air is again heated by the at least one heating element 6.

La machine à sécher le linge 1 peut également être pourvue d'un condenseur 9 à plaques à la place d'un condenseur 9 à tubes.The laundry dryer 1 may also be provided with a plate condenser 9 in place of a condenser 9 with tubes.

Le circuit d'air froid 5 est en circuit ouvert où de l'air ambiant est aspiré par un ventilateur 10 à l'arrière de la machine à sécher le linge 1. Le ventilateur 10 propulse l'air ambiant dans le condenseur 9 sur l'extérieur des tubes dudit condenseur 9 afin de le refroidir. L'air ambiant réchauffé dans le condenseur 9 est évacué dans une pièce par une face frontale de la machine à sécher le linge 1.The cold air circuit 5 is in an open circuit where ambient air is sucked by a fan 10 at the rear of the dryer 1. The fan 10 propels the ambient air into the condenser 9 on the floor. outside the tubes of said condenser 9 in order to cool it. The ambient air heated in the condenser 9 is discharged into a room through a front face of the dryer 1.

Un moteur 11 permet l'entraînement du tambour 2 pour le brassage du linge avec une rotation alternée afin d'éviter le nouage du linge. Ledit moteur 11 peut également entraîner les deux ventilateurs 8 et 10.A motor 11 allows the driving of the drum 2 for brewing the laundry with an alternating rotation to prevent the knotting of the laundry. Said motor 11 can also drive the two fans 8 and 10.

Les deux ventilateurs 8 et 10 sont de technologie centrifuge. Le débit d'air est plus important dans un sens dit positif par rapport à un sens inversé dit négatif. Le facteur de débit d'air entre le sens positif et le sens négatif des ventilateurs 8 et 10 est sensiblement de l'ordre de 3.Both fans 8 and 10 are centrifugal technology. The air flow is greater in a positive direction relative to a reverse direction said negative. The air flow factor between the positive direction and the negative direction of the fans 8 and 10 is substantially of the order of 3.

L'eau récupérée par le condenseur 9 peut être relevée par une pompe vers un bac placé en partie haute de la machine 1, soit récupérée par gravité dans un bac en partie basse de la machine 1 en fonction de ladite machine à sécher le linge 1.The water recovered by the condenser 9 can be raised by a pump to a tank placed in the upper part of the machine 1, or recovered by gravity in a tray at the bottom of the machine 1 according to said dryer machine 1 .

La machine à sécher le linge 1 est également équipée d'un générateur de vapeur 12 alimenté en eau par une pompe provenant d'un bac. Lors de la mise en oeuvre d'un cycle de défroissage du linge, la vapeur produite par le générateur de vapeur 12 est injectée dans le circuit d'air chaud 4 pour humidifier le linge afin de le défroisser.The dryer 1 is also equipped with a steam generator 12 supplied with water by a pump from a tank. During the implementation of a laundry cycle, the steam produced by the steam generator 12 is injected into the hot air circuit 4 to moisten the laundry in order to straighten it.

Le bac du générateur de vapeur 12 peut être rempli par l'utilisateur avec de l'eau du réseau, de l'eau de condensas ou encore de l'eau déminéralisée.The tank of the steam generator 12 can be filled by the user with mains water, condensate water or demineralised water.

Le cycle de défroissage du linge se déroule avec une rotation du tambour 2 alternée pour éviter le nouage du linge. La rotation du tambour 2 contenant le linge à défroisser permet de brasser le linge et créer un échange entre l'air humide et la vapeur et avec le linge.The laundry cycle unwinds with a rotation of the drum 2 alternating to avoid the knotting of the laundry. The rotation of the drum 2 containing the laundry to be straightened makes it possible to stir the laundry and to create an exchange between the moist air and the steam and with the laundry.

On va décrire à présent le procédé de défroissage du linge conforme à l'invention, en référence à la figure 1.We will now describe the method of unwinding the laundry according to the invention, with reference to the figure 1 .

La charge de linge introduite dans le tambour 2 de la machine à sécher le linge 1 est principalement sèche et froissée au départ du cycle de défroissage du linge.The load of laundry introduced into the drum 2 of the dryer 1 is mainly dried and creased at the start of the laundry cycle.

Le procédé de défroissage du linge dans une machine à sécher le linge 1 comprend un générateur de vapeur 12, un condenseur 9 et un tambour 2 logé à l'intérieur d'une carrosserie.The method of straightening the laundry in a dryer 1 comprises a steam generator 12, a condenser 9 and a drum 2 housed inside a body.

Ledit tambour 2 contient le linge à défroisser et est relié audit condenseur 9 par une conduite 13. Ledit condenseur 9 est relié à au moins un ventilateur 8 par une conduite 14. Et ledit au moins un ventilateur 8 est relié audit tambour 2 par une conduite 15.Said drum 2 contains the laundry to be stripped and is connected to said condenser 9 by a pipe 13. Said condenser 9 is connected to at least one fan 8 by a pipe 14. And said at least one fan 8 is connected to said drum 2 by a pipe 15.

Le procédé de défroissage du linge comporte successivement les étapes suivantes :

  • une première phase de préchauffage du générateur de vapeur 12;
  • une seconde phase de préchauffage du tambour 2 par au moins un élément chauffant 6 et une circulation d'air chaud générée par ledit au moins un ventilateur 8 ;
  • une troisième phase de génération de vapeur et de circulation de la vapeur du générateur de vapeur 12 au tambour 2 ;
  • une quatrième étape d'évacuation de la vapeur du tambour 2 et de refroidissement du linge contenu dans ledit tambour 2.
The method of degreasing the laundry successively comprises the following steps:
  • a first preheating phase of the steam generator 12;
  • a second preheating phase of the drum 2 by at least one heating element 6 and a hot air flow generated by said at least one fan 8;
  • a third phase of steam generation and steam circulation of the steam generator 12 to the drum 2;
  • a fourth step of evacuating the steam from the drum 2 and cooling the laundry contained in said drum 2.

Le remplissage du bac du générateur de vapeur 12 peut être rempli à tout moment du procédé de défroissage du linge conforme à l'invention. Ce remplissage est possible grâce au générateur de vapeur 12 alimenté en eau en goutte à goutte par une ouverture d'entrée. Le générateur de vapeur 12 peut être un réservoir fermé chauffant au niveau de sa partie inférieure. Le générateur de vapeur 12 comprend une ouverture de sortie pour diriger la vapeur produite vers le circuit d'air chaud 4 de la machine à sécher le linge 1.The filling of the tank of the steam generator 12 can be filled at any time with the method of unwinding the laundry according to the invention. This filling is possible thanks to the steam generator 12 supplied with water drip through an inlet opening. The steam generator 12 may be a closed heating tank at its lower part. The steam generator 12 includes an outlet opening for directing the generated steam to the hot air circuit 4 of the dryer 1.

La première phase du procédé de défroissage du linge consiste à chauffer le générateur de vapeur 12 pour que l'eau introduite dans ce dernier tombe sur une surface chauffée et l'eau est vaporisée instantanément.The first phase of the laundry stripping process involves heating the steam generator 12 so that the water introduced into it falls on a heated surface and the water is vaporized instantly.

Pour permettre l'introduction de la vapeur dans le circuit d'air chaud 4 de la machine à sécher le linge 1, la structure de ladite machine, en particulier le tambour 2, doit être suffisamment chaude pour éviter la condensation de la vapeur sur les parties métalliques et / ou froides ainsi que sur ledit au moins un élément chauffant 6. Ledit au moins un élément chauffant 6 pourrait être dégradé par la présence d'eau. En particulier dans le cas où ledit au moins un élément chauffant 6 est non blindé.To allow the introduction of steam into the hot air circuit 4 of the clothes dryer 1, the structure of said machine, in particular the drum 2, must be sufficiently hot to prevent condensation of the steam on the machine. metal parts and / or cold and on said at least one heating element 6. Said at least one heating element 6 could be degraded by the presence of water. In particular in the case where said at least one heating element 6 is unshielded.

En outre, le fait d'empêcher la condensation de la vapeur supprime la possibilité d'observer des taches d'eau sur le linge.In addition, preventing the condensation of steam eliminates the possibility of observing water spots on the laundry.

Ledit au moins un élément chauffant 6 est utilisé à la moitié de sa puissance lors de la seconde phase de préchauffage du tambour 2.Said at least one heating element 6 is used at half of its power during the second preheating phase of the drum 2.

Le fonctionnement dudit au moins un élément chauffant 6 à la moitié de sa puissance permet de limiter une montée trop rapide de la température au niveau du linge et de limiter ainsi son froissage.The operation of said at least one heating element 6 at half of its power makes it possible to limit a too rapid rise in temperature at the level of the laundry and thus to limit its creasing.

Au cours d'un cycle de défroissage utilisant la génération de vapeur, ledit au moins un élément chauffant 6 peut fonctionner sur une courte durée, pouvant s'étendre entre deux et dix minutes, selon les paramètres du cycle de défroissage, tel que le type de linge et son taux d'humidité.During a steaming cycle using the steam generation, said at least one heating element 6 can operate over a short period of time, which can last between two and ten minutes, depending on the parameters of the anti-crease cycle, such as the type of linen and its humidity.

La durée de génération de vapeur au cours d'un cycle de défroissage peut être de l'ordre de 13 minutes.The steam generation time during a wrinkle cycle can be of the order of 13 minutes.

Préférentiellement, ledit au moins un élément chauffant 6 est utilisé sur une seule partie et notamment celle placée en partie amont dans le circuit de d'air chaud 4. L'utilisation de la partie amont dudit au moins un élément chauffant 6 permet d'éviter la condensation sur la totalité dudit au moins un élément chauffant 6. La partie amont dudit au moins un élément chauffant 6 correspond à la première moitié inférieure dudit au moins un élément chauffant 6 illustré à la figure 1.Preferably, said at least one heating element 6 is used on a single part and in particular that placed in the upstream part in the hot air circuit 4. The use of the upstream part of said at least one heating element 6 makes it possible to avoid the condensation on all of said at least one heating element 6. The upstream portion of said at least one heating element 6 corresponds to the first lower half of said heating element. minus one heating element 6 illustrated in the figure 1 .

L'utilisation de la demi puissance dudit au moins un élément chauffant 6 permet d'économiser de l'énergie et de limiter la puissance de la machine 1.The use of the half power of said at least one heating element 6 saves energy and limits the power of the machine 1.

En outre, le fonctionnement dudit au moins un élément chauffant à la moitié de sa puissance permet de limiter la température à l'intérieur du tambour pour une meilleure préservation du linge. De cette manière, une surchauffe n'est pas provoquée sur la surface du linge placé à l'intérieur du tambour.In addition, the operation of said at least one heating element to half of its power limits the temperature inside the drum for better preservation of laundry. In this way, overheating is not caused on the surface of the laundry placed inside the drum.

Le tambour 2 est entraîné en rotation pour brasser le linge et homogénéiser l'introduction de vapeur dans ledit tambour 2 lors de la troisième phase de génération de vapeur et de circulation de la vapeur du générateur de vapeur 12 audit tambour 2.The drum 2 is rotated to stir the laundry and homogenize the introduction of steam into said drum 2 during the third steam generation and steam circulation phase of the steam generator 12 to said drum 2.

Le circuit d'air chaud 4 permet de minimiser la condensation de vapeur pour optimiser la consommation d'eau et l'apport d'énergie thermique.The hot air circuit 4 makes it possible to minimize steam condensation in order to optimize the consumption of water and the supply of thermal energy.

Le circuit d'air chaud 4 permet de condenser le moins possible de vapeur, provenant du tambour 2, afin de consommer une quantité minimale d'eau et de limiter l'apport d'énergie thermique, et de réduire le bruit de la machine à sécher le linge 1 de l'ordre de 2dB.The hot air circuit 4 makes it possible to condense as little steam as possible, coming from the drum 2, in order to consume a minimum quantity of water and to limit the supply of thermal energy, and to reduce the noise of the machine to drying the laundry 1 of the order of 2dB.

Le moyen utilisé pour diminuer le rendement du condenseur 9 est de réduire le flux d'air ambiant pour limiter l'échange thermique.The means used to reduce the efficiency of the condenser 9 is to reduce the flow of ambient air to limit the heat exchange.

Lors de la troisième phase de génération de vapeur et de circulation de la vapeur du générateur de vapeur 12 au tambour 2, une rotation inversée d'un ventilateur 10 du circuit d'air froid 5 est mise en oeuvre. La rotation du ventilateur 10 du circuit d'air froid 5 est inversée par rapport au sens de fonctionnement optimum dudit ventilateur 10. Ainsi, la condensation de la vapeur est minimisée dans le but d'optimiser le défroissage du linge.During the third steam generation and steam circulation phase of the steam generator 12 to the drum 2, an inverted rotation of a fan 10 of the cold air circuit 5 is carried out. The rotation of the fan 10 of the cold air circuit 5 is reversed relative to the optimum operating direction of said fan 10. Thus, the condensation of the steam is minimized in order to optimize the unwinding of the laundry.

Lors de la rotation en sens inverse dudit ventilateur 10 du circuit d'air froid 10, le débit d'air est limité et par conséquent le rendement du condenseur 9 est réduit. Le condenseur 9 est moins refroidi donc la vapeur présente dans le circuit d'air chaud 4 est moins condensée. Ladite vapeur peut alors être réinjectée dans le tambour 2 de la machine à sécher le linge 1.During the rotation in opposite direction of said fan 10 of the cold air circuit 10, the air flow is limited and therefore the efficiency of the condenser 9 is reduced. The condenser 9 is cooled less so the steam present in the hot air circuit 4 is less condensed. Said steam can then be reinjected into the drum 2 of the dryer 1.

Ainsi, un gain d'énergie et de consommation d'eau est réalisé.Thus, a gain in energy and water consumption is achieved.

Dans le cas où un seul moteur 11 entraîne le tambour 2 et ledit ventilateur 10 du circuit d'air froid 5, la rotation du tambour 2 est également inversée lors de ladite troisième phase.In the case where a single motor 11 drives the drum 2 and said fan 10 of the cold air circuit 5, the rotation of the drum 2 is also reversed during said third phase.

L'utilisation d'un même moteur 11 pour entraîner le ventilateur 10 du circuit d'air froid 5 et le tambour 2 permet de réaliser un gain de coût et de place dans la machine 1.The use of the same motor 11 for driving the fan 10 of the cold air circuit 5 and the drum 2 makes it possible to save money and space in the machine 1.

Le rendement du condenseur 9 avec un ventilateur 10 du circuit d'air froid 5 tournant dans le sens positif est de l'ordre de 70%.The efficiency of the condenser 9 with a fan 10 of the cold air circuit 5 rotating in the positive direction is of the order of 70%.

La puissance échangée dans le condenseur 9 est de l'ordre de 2000W.The power exchanged in the condenser 9 is of the order of 2000W.

Le changement de sens de rotation du tambour 2 permet également de modifier le sens de rotation du ventilateur 10 et ainsi de modifier le débit d'air ambiant traversant le condenseur 9. Un débit d'air plus faible généré par le ventilateur 10 crée un échange thermique moindre entre l'air chaud humide et l'air ambiant. Ainsi, le rendement du condenseur 9 est de l'ordre de 30%.The change of direction of rotation of the drum 2 also makes it possible to modify the direction of rotation of the fan 10 and thus to modify the flow of ambient air passing through the condenser 9. A lower air flow generated by the fan 10 creates an exchange less heat between moist warm air and ambient air. Thus, the efficiency of the condenser 9 is of the order of 30%.

La puissance échangée dans le condenseur 9 est de l'ordre de 800W.The power exchanged in the condenser 9 is of the order of 800W.

En outre, le ventilateur 8 du circuit d'air chaud 4 est aussi entraîné par le moteur 11 et ledit ventilateur 8 tournant également en sens inverse. Ainsi, le circuit d'air chaud 4 a un débit d'air moindre. Par ailleurs, la puissance dudit au moins un élément chauffant 6 est plus faible pour obtenir une température en sortie de la conduite 15 sensiblement identique.In addition, the fan 8 of the hot air circuit 4 is also driven by the motor 11 and said fan 8 also rotating in the opposite direction. Thus, the hot air circuit 4 has a lower air flow. Moreover, the power of said at least one heating element 6 is lower to obtain a temperature at the outlet of the pipe 15 substantially identical.

Un débit d'air chaud plus faible permet également de limiter le risque d'entraînement de gouttelettes d'eau pouvant être évacuées avec la vapeur dans le circuit d'air chaud 4 et par conséquent de limiter le risque de court-circuit dudit au moins un élément chauffant 6.A lower hot air flow rate also makes it possible to limit the risk of entrainment of water droplets that can be discharged with the steam in the hot air circuit 4 and consequently to limit the risk of short circuiting of said at least one a heating element 6.

La génération de vapeur peut être interrompue lors de la rotation du tambour 2 dans ledit sens positif.The steam generation can be interrupted during the rotation of the drum 2 in said positive direction.

Le refroidissement par le condenseur 9 est également moins important, d'où, un échange thermique minimisé.The cooling by the condenser 9 is also less important, hence a minimized heat exchange.

La vapeur est introduite et mise en circulation dans un circuit d'air chaud 4 de la machine à sécher le linge 1 lors de la troisième phase de génération de vapeur et de circulation de la vapeur du générateur de vapeur 12 au tambour 2.The steam is introduced and put into circulation in a hot air circuit 4 of the dryer 1 during the third steam generation and steam circulation phase of the steam generator 12 to the drum 2.

L'introduction de vapeur est régulée par des temps de marche et d'arrêt du générateur de vapeur 12.The introduction of steam is regulated by the on and off times of the steam generator 12.

Le temps d'arrêt du générateur de vapeur 12 est présent pour stabiliser la température dudit générateur de vapeur 12 en le refroidissant par de l'eau entrant en goutte à goutte dans ce dernier.The stopping time of the steam generator 12 is present to stabilize the temperature of said steam generator 12 by cooling it with water drip into it.

L'eau introduite en goutte à goutte est à température ambiante et refroidit le générateur de vapeur étant chaud. Lors des temps d'arrêt d'introduction d'eau dans le générateur de vapeur, ce dernier se réchauffe. Les temps d'arrêt d'introduction d'eau sont nécessaires pour provoquer la montée en température du générateur de vapeur. Si ces temps d'arrêt d'introduction d'eau ne sont pas prévus, le générateur de vapeur évacue des gouttelettes d'eau dans le circuit d'air chaud 4.The water introduced dropwise is at ambient temperature and cools the steam generator being hot. During water supply stopping times in the steam generator, the latter heats up. Stopping water introduction times are necessary to cause the temperature rise of the steam generator. If these water supply stoppages are not provided, the steam generator discharges water droplets into the hot air circuit 4.

Ainsi, l'eau n'est pas introduite sous forme liquide dans le circuit d'air chaud 4 de la machine à sécher le linge 1 mais uniquement sous forme vapeur.Thus, the water is not introduced in liquid form into the hot air circuit 4 of the dryer 1 but only in vapor form.

Dans le cas d'un générateur de vapeur 12 à tube, le débit d'eau fourni audit générateur de vapeur 12 peut être continu sans provoquer un écoulement d'eau dans le circuit d'air chaud 4.In the case of a tube steam generator 12, the flow of water supplied to said steam generator 12 can be continuous without causing a flow of water into the hot air circuit 4.

Le condenseur 9 fonctionne à son rendement maximal lors de la quatrième phase d'évacuation de la vapeur du tambour 2 et de refroidissement du linge contenu dans ledit tambour 2.The condenser 9 operates at its maximum efficiency during the fourth phase of evacuation of the steam from the drum 2 and cooling the laundry contained in said drum 2.

Lors de cette quatrième phase du procédé de défroissage du linge, les ventilateurs 8 et 10 fonctionnent dans le sens positif.During this fourth phase of the laundry degreasing process, the fans 8 and 10 operate in the positive direction.

Cette quatrième phase du procédé de défroissage du linge permet de retirer le linge du tambour 2 de la machine à sécher le linge 1 sans l'évacuation d'un nuage de vapeur à l'ouverture de la porte d'accès de ladite machine 1.This fourth phase of the laundry degreasing process makes it possible to remove the laundry from the drum 2 of the dryer 1 without the evacuation of a cloud of steam when the access door of said machine 1 is opened.

En outre, la quatrième phase du procédé permet d'éviter l'évacuation de la vapeur se condensant sur un bandeau de commande (non représenté) en face avant de la machine à sécher le linge 1. Ledit bandeau de commande est généralement équipé d'une carte électronique pouvant être endommagée par de la vapeur ou encore de l'humidité.In addition, the fourth phase of the method avoids the evacuation of steam condensing on a control panel (not shown) on the front of the dryer machine 1. Said control panel is generally equipped with an electronic card that can be damaged by steam or moisture.

Par ailleurs, la quatrième phase du procédé permet d'éviter à l'utilisateur de se brûler les mains en retirant le linge du tambour 2.In addition, the fourth phase of the method avoids the user to burn his hands by removing the laundry drum 2.

La première phase du procédé de défroissage du linge a une durée de l'ordre de 1 minute à 3 minutes. La durée de la première phase du procédé de défroissage du linge est dépendante du type de générateur de vapeur et de sa puissance.The first phase of the laundry degreasing process has a duration of the order of 1 minute to 3 minutes. The duration of the first phase of the laundry degreasing process is dependent on the type of steam generator and its power.

La seconde phase de préchauffage du tambour 2 par au moins un élément chauffant 6 et une circulation d'air chaud générée par ledit au moins un ventilateur 8 a une durée de l'ordre de 1 minute à 3 minutes.The second phase of preheating of the drum 2 by at least one heating element 6 and a circulation of hot air generated by said at least one fan 8 has a duration of the order of 1 minute to 3 minutes.

La première phase et la seconde phase peuvent être réalisées simultanément. Dans ce mode de réalisation de l'invention, la deuxième phase du procédé de défroissage du linge se prolonge d'environ une minute à trois minutes par rapport à ladite première phase.The first phase and the second phase can be performed simultaneously. In this embodiment of the invention, the second phase of the laundry unwinding process extends from about one minute to three minutes with respect to said first phase.

La troisième phase de génération de vapeur et de circulation de la vapeur du générateur de vapeur 12 au tambour 2 a une durée de l'ordre de 10 minutes.The third phase of steam generation and steam circulation of the steam generator 12 to the drum 2 has a duration of the order of 10 minutes.

La quatrième phase d'évacuation de la vapeur du tambour 2 et de refroidissement du linge contenu dans ledit tambour 2 a une durée de l'ordre de deux minutes.The fourth phase of evacuating the steam from the drum 2 and cooling the laundry contained in said drum 2 has a duration of the order of two minutes.

La quantité d'eau injectée à chaque cycle de défroissage du linge dans le générateur de vapeur 12 est de l'ordre de 300mL à 400mL.The amount of water injected at each cycle of straightening of the laundry in the steam generator 12 is of the order of 300mL to 400mL.

Le procédé de défroissage du linge dans une machine à sécher le linge 1 à condensation comprend un générateur de vapeur 12, un condenseur 9 et un tambour 2 logé à l'intérieur d'une carrosserie.The method of straightening laundry in a condensing dryer 1 comprises a steam generator 12, a condenser 9 and a drum 2 housed inside a body.

Ledit tambour 2 contient le linge à défroisser et est relié audit condenseur 9 par une conduite 13. Ledit condenseur 9 est relié à au moins deux ventilateurs 8 et 10 chacun par une conduite 14 et 16.Said drum 2 contains the laundry to be stripped and is connected to said condenser 9 by a pipe 13. Said condenser 9 is connected to at least two fans 8 and 10 each by a pipe 14 and 16.

Et ledit au moins un ventilateur 8 est relié audit tambour 2 par une conduite 15.And said at least one fan 8 is connected to said drum 2 by a pipe 15.

Le procédé de défroissage du linge dans une machine à sécher le linge 1 à condensation comporte au moins l'étape suivante :

  • une phase de brassage du linge où le fonctionnement du condenseur 9 est à son rendement minimum afin de minimiser la condensation de vapeur lors de son passage dans ledit condenseur 9 ;
  • ladite phase de brassage du linge étant exécuté pendant une phase d'introduction de la vapeur dans un circuit d'air chaud 4 de ladite machine 1.
The method of straightening the laundry in a condensing dryer 1 comprises at least the following step:
  • a laundry mixing phase where the operation of the condenser 9 is at its minimum efficiency in order to minimize the condensation of steam during its passage in said condenser 9;
  • said brewing phase of the laundry being performed during a steam introduction phase in a hot air circuit 4 of said machine 1.

Cette phase de brassage du linge permet de limiter le refroidissement du condenseur 9 et par conséquent la condensation de la vapeur.This brewing phase of the laundry makes it possible to limit the cooling of the condenser 9 and consequently the condensation of the steam.

Ainsi, la consommation en eau et en énergie est optimisée lors de la mise en oeuvre d'un cycle de défroissage du linge par de la vapeur. La durée du cycle de défroissage est également optimisée.Thus, the consumption of water and energy is optimized during the implementation of a laundry cycle by steam steaming. The duration of the anti-crease cycle is also optimized.

Ledit au moins un ventilateur 10 fonctionne périodiquement et majoritairement dans le sens de rotation inverse par rapport au sens de rotation de fonctionnement ayant un débit maximum lors de la phase de brassage du linge pour obtenir le rendement minimum du condenseur 9.Said at least one fan 10 operates periodically and predominantly in the opposite direction of rotation with respect to the operating rotation direction having a maximum flow rate during the brewing phase of the laundry to obtain the minimum efficiency of the condenser 9.

Ainsi, le rendement du condenseur 9 est minimum pour empêcher la condensation de la vapeur lors de son passage dans ledit condenseur 9.Thus, the efficiency of the condenser 9 is minimum to prevent condensation of the steam as it passes through said condenser 9.

Le rapport de durée de fonctionnement dudit au moins un ventilateur 10 dans le sens de rotation ayant un débit maximum par rapport au sens de rotation inverse est compris entre 1/5ème et 1/15ème, et préférentiellement de l'ordre de 1/10ème.The operating time ratio of said at least one fan 10 in the direction of rotation having a maximum flow rate relative to the reverse direction of rotation is between 1/5 th and 1/15 th , and preferably of the order of 1 / 10 th .

Ledit au moins un élément chauffant 6 fonctionne à la moitié de sa puissance lors de la phase de brassage du linge, et préférentiellement à une puissance de l'ordre de 1000W.Said at least one heating element 6 operates at half of its power during the brewing phase of the laundry, and preferably at a power of the order of 1000W.

Ledit au moins un élément chauffant 6 peut fonctionner par alternance de périodes de mise en fonctionnement et d'arrêt au cours son utilisation pour un cycle de défroissage utilisant la génération de vapeur.Said at least one heating element 6 can operate alternating periods of operation and stop during its use for a steaming cycle using the steam generation.

Ledit au moins un élément chauffant 6 est situé dans une conduite 15 reliant ledit au moins un ventilateur 8 et le tambour 2.Said at least one heating element 6 is located in a pipe 15 connecting said at least one fan 8 and the drum 2.

Préférentiellement, ledit au moins un élément chauffant 6 est utilisé sur une seule partie et notamment celle placée en partie amont dans le circuit de d'air chaud 4. L'utilisation de la partie amont dudit au moins un élément chauffant 6 permet d'éviter la condensation sur la totalité dudit au moins un élément chauffant 6. La partie amont dudit au moins un élément chauffant 6 correspond à la première moitié inférieure dudit au moins un élément chauffant 6 illustré à la figure 1.Preferably, said at least one heating element 6 is used on a single part and in particular that placed in the upstream part in the hot air circuit 4. The use of the upstream part of said at least one heating element 6 makes it possible to avoid condensation of all of said at least one heating element 6. The upstream portion of said at least one heating element 6 corresponds to the first lower half of said at least one heating element 6 illustrated in FIG. figure 1 .

La machine à sécher le linge 1 comprend un générateur de vapeur 12 pouvant être alimenté en eau par une pompe 18 depuis un bac 19. Au cours d'un programme de défroissage du linge contenu dans le tambour 2, de la vapeur est produite par le générateur de vapeur 12 et injectée dans la conduite 15 du circuit d'air chaud 4 pour défroisser les pièces de linge. Le moyen d'introduction de vapeur débouche dans la conduite 15, et ledit moyen d'introduction de vapeur est placé entre le condenseur 9 et ledit au moins un élément chauffant 6. L'introduction de vapeur est réalisée dans la conduite 15 et à proximité d'un canal d'écoulement d'eau en direction d'un bac de récupération de condensas 17. Ce bac de récupération de condensas 17 peut servir également à collecter les condensas du condenseur 9.The dryer 1 comprises a steam generator 12 which can water is supplied by a pump 18 from a tank 19. During a program for ironing the laundry contained in the drum 2, steam is produced by the steam generator 12 and injected into the pipe 15 of the circuit. hot air 4 to straighten the clothes. The steam introduction means opens into the pipe 15, and said steam introduction means is placed between the condenser 9 and the at least one heating element 6. The introduction of steam is carried out in the pipe 15 and in the vicinity a water flow channel in the direction of a condensate recovery tank 17. This condensate recovery tank 17 can also be used to collect the condensates of the condenser 9.

Le moyen d'introduction de vapeur du générateur de vapeur 12 débouche dans la conduite 15 reliant ledit au moins un ventilateur 8 au tambour 2.The means for introducing steam from the steam generator 12 opens into the pipe 15 connecting the at least one fan 8 to the drum 2.

Le moyen d'introduction de vapeur débouchant dans la conduite 15 reliant ledit au moins un ventilateur 8 au tambour 2 est placé en aval du condenseur 9 pour limiter la condensation dans ledit condenseur 9.The steam introduction means opening into the pipe 15 connecting said at least one fan 8 to the drum 2 is placed downstream of the condenser 9 to limit condensation in said condenser 9.

Le moyen d'introduction de vapeur débouchant dans la conduite 15 reliant ledit au moins un ventilateur 8 au tambour 2 est placé à proximité d'un circuit d'évacuation des condensas pour permettre l'évacuation de gouttelettes d'eau formées lors de la génération de vapeur dans ledit circuit de condensas.The steam introduction means opening into the pipe 15 connecting said at least one fan 8 to the drum 2 is placed close to a condensate discharge circuit to allow the evacuation of water droplets formed during generation. of steam in said condensate circuit.

La quantité d'eau recueillie par un bac de récupération de condensas 17 provenant du générateur de vapeur 12 peut être de l'ordre de 30g au cours d'un cycle de défroissage du linge.The quantity of water collected by a condensate recovery tank 17 from the steam generator 12 may be of the order of 30 g during a laundry cycle.

Le moyen d'introduction de vapeur débouchant dans la conduite 15 reliant ledit au moins un ventilateur 8 au tambour 2 est placé en amont dudit au moins un élément chauffant 6 pour éviter qu'en cas de formations de gouttelettes d'eau, ces dernières ne puissent tomber sur ledit au moins un élément chauffant 6.The steam introduction means opening into the pipe 15 connecting said at least one fan 8 to the drum 2 is placed upstream of said at least one heating element 6 to prevent water droplets from forming, the latter not may fall on said at least one heating element 6.

La distance entre le moyen d'introduction de vapeur et ledit au moins un élément chauffant 6 est préférentiellement de l'ordre de 500mm.The distance between the steam introduction means and said at least one heating element 6 is preferably of the order of 500 mm.

Le générateur de vapeur 12 est placé au-dessus de la conduite 15 du circuit d'air chaud 4. Le moyen d'introduction de vapeur débouchant dans la conduite 15 est placé à proximité du générateur de vapeur 12. Le moyen d'introduction de vapeur peut être réalisé par un tuyau 20 reliant le générateur de vapeur 12 à la conduite 15. La longueur de ce tuyau 20 est courte, permettant ainsi de minimiser les coûts d'obtention de la machine 1 et d'éviter la condensation de la vapeur dans ledit tuyau. La longueur du tuyau 20 est comprise entre 50mm et 300mm, et préférentiellement de l'ordre de 110mm.The steam generator 12 is placed above the pipe 15 of the hot air circuit 4. The steam introduction means opening into the pipe 15 is placed near the steam generator 12. The means of introduction of steam can be achieved by a pipe 20 connecting the steam generator 12 to the pipe 15. The length of this pipe 20 is short, thus minimizing the costs of obtaining the machine 1 and avoid condensation of steam in said pipe. The length of the pipe 20 is between 50 mm and 300 mm, and preferably of the order of 110 mm.

Le ventilateur 8 du circuit d'air chaud peut être placé en aval du condenseur 9, tel qu'illustré à la figure 1. Toutefois, ce ventilateur 8 peut être placé en amont dudit condenseur 9 sans modifier le fonctionnement de la machine à sécher le linge conforme à l'invention, tel qu'illustré à la figure 2. Le moyen d'introduction de vapeur débouche dans une conduite 14 ou dans une conduite 15 reliant le condenseur 9 au tambour 2. Le ventilateur 8 peut être placé entre le condenseur 9 et le tambour 2 dans une conduite 14 ou encore être entre le tambour 2 et le condenseur 9 dans une conduite 13. Le positionnement du ventilateur 8 est soit en amont soit en aval du condenseur 9.The fan 8 of the hot air circuit can be placed downstream of the condenser 9, as illustrated in FIG. figure 1 . However, this fan 8 can be placed upstream of said condenser 9 without modifying the operation of the dryer according to the invention as illustrated in figure 2 . The steam introduction means opens into a pipe 14 or a pipe 15 connecting the condenser 9 to the drum 2. The fan 8 can be placed between the condenser 9 and the drum 2 in a pipe 14 or be between the drum 2 and the condenser 9 in a pipe 13. The positioning of the fan 8 is either upstream or downstream of the condenser 9.

Le procédé de défroissage du linge conforme à l'invention permet d'obtenir un cycle de durée courte, une homogénéité de la diffusion de la vapeur sur toute la surface des textiles, de consommer une quantité minimum d'eau et de s'adapter à la masse du linge.The method of degreasing the laundry according to the invention makes it possible to obtain a cycle of short duration, homogeneity of the diffusion of the vapor over the entire surface of the textiles, to consume a minimum quantity of water and to adapt to the mass of the linen.

Ce procédé de défroissage du linge permet également de pouvoir recharger en eau le bac du générateur de vapeur au cours du cycle ou directement après la fin du cycle sans risque de détérioration de la machine comprenant un générateur de vapeur avec une alimentation en eau en goutte à goutte.This method of straightening the laundry also allows to be able to recharge water in the steam generator tray during the cycle or directly after the end of the cycle without risk of deterioration of the machine comprising a steam generator with a water supply drop at drop.

Bien entendu, de nombreuses modifications peuvent être apportées à l'exemple de réalisation décrit précédemment sans sortir du cadre de l'invention.Of course, many modifications can be made to the embodiment described above without departing from the scope of the invention.

Claims (4)

  1. Tumble dryer comprising a steam generator (12), a condenser (9), at least one air circuit (4), and a drum (2) located inside a casing, said drum (2) containing the washing from which the creases are to be removed, said air circuit (4) comprising at least two ducts (13, 14, 15), at least one first duct (13) of the air circuit (4) connecting the drum (2) to the condenser (9), at least one second duct (14, 15) connecting the condenser (9) to the drum (2), the said at least one second duct (14, 15) comprising at least one heating element (6), and at least one fan (8) being placed in at least one of the at least two ducts (13, 14, 15) of the air circuit (4), characterised in that a means of introducing steam opens into said at least one second duct (14, 15) connecting the condenser (9) to the drum (2), said means of introducing steam being located upstream of the said at least one heating element (6), and said means of introducing steam being located downstream of the condenser (9).
  2. Tumble dryer according to claim 1, characterised in that the means of introducing steam into the duct (14, 15) connecting the condenser(9) to the drum (2) is located near to a condensate evacuation circuit.
  3. Tumble dryer according to claim 1 or 2, characterised in that the said at least one heating element (6) is used on a single part, the said single part used of the said at least one heating element (6) being the upstream part.
  4. Tumble dryer according to any one of claims 1 to 3, characterised in that the said at least one heating element (6) is used at half of its power when steam is introduced into the drum (2).
EP07110729A 2006-06-21 2007-06-21 Laundry drying machine comprising a steam generator Active EP1870510B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07110729T PL1870510T3 (en) 2006-06-21 2007-06-21 Laundry drying machine comprising a steam generator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0605734A FR2902806B1 (en) 2006-06-21 2006-06-21 METHOD FOR LAUNDRYING LAUNDRY IN A LAUNDRY DRYER
FR0605728A FR2902805B1 (en) 2006-06-21 2006-06-21 LAUNDRY DRYING METHOD IN A CONDENSING LAUNDRY DRYER

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EP1870510A2 EP1870510A2 (en) 2007-12-26
EP1870510A3 EP1870510A3 (en) 2010-03-24
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EP2759632A1 (en) * 2013-01-29 2014-07-30 V-Zug AG Laundry treatment cabinet
CN108315983A (en) * 2017-01-17 2018-07-24 青岛海尔滚筒洗衣机有限公司 Laundry care all-in-one machine and ironing system application method
CN111607946A (en) * 2020-05-09 2020-09-01 海信（山东）冰箱有限公司 Clothes care equipment

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ATE510948T1 (en) 2011-06-15
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EP1870510A2 (en) 2007-12-26

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