EP2260138B1 - Sèche-linge - Google Patents

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Publication number
EP2260138B1
EP2260138B1 EP09729448.2A EP09729448A EP2260138B1 EP 2260138 B1 EP2260138 B1 EP 2260138B1 EP 09729448 A EP09729448 A EP 09729448A EP 2260138 B1 EP2260138 B1 EP 2260138B1
Authority
EP
European Patent Office
Prior art keywords
drying drum
electric motor
detected
process air
drive motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP09729448.2A
Other languages
German (de)
English (en)
Other versions
EP2260138A1 (fr
Inventor
Michael Zinke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diehl AKO Stiftung and Co KG
Original Assignee
Diehl AKO Stiftung and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41009908&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2260138(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Priority to PL09729448T priority Critical patent/PL2260138T3/pl
Publication of EP2260138A1 publication Critical patent/EP2260138A1/fr
Application granted granted Critical
Publication of EP2260138B1 publication Critical patent/EP2260138B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/50—Responding to irregular working conditions, e.g. malfunctioning of blowers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/24—Spin speed; Drum movements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28—Electric heating
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • 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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D06F58/08—Driving arrangements

Definitions

  • the present invention relates to a tumble dryer according to the preamble of claim 1.
  • the rotary drive of the drying drum is usually carried out by a single-phase operable asynchronous motor with auxiliary winding, wherein the necessary for generating the rotating field phase shift of the current in the auxiliary winding in a known manner by series connection of a capacitor or caused by different resistance ratios of the main and auxiliary winding.
  • This drive motor for the drying drum usually runs with a fixed, load-dependent speed and also serves to drive a process air blower and a cooling air blower, as for example in the DE 199 04 993 C2 or the DE 10 2004 055 927 A1 is described.
  • this drive motor is equipped with a temperature protection switch to prevent its overheating when the drive is blocked or overloaded.
  • the temperature of the process air through the drying drum or the electrical resistance of the laundry in the drying drum to determine the degree of drying of the laundry can be detected ( DE 199 04 993 C2 ). Furthermore, it can be concluded from the behavior of a rotational speed of the drive motor during deceleration and acceleration processes on the loading amount in the drying drum ( DE 199 28 657 A1 . DE 103 05 675 B3 ).
  • a clothes dryer with the features of the preamble of claim 1 is in US 2004 0515 40 disclosed.
  • the invention has for its object to provide a clothes dryer with a rotatably mounted drying drum, which allows improved operation over known clothes dryers. Another object of the invention is to provide an improved method of operating a tumble dryer with a rotatably mounted drying drum.
  • the tumble dryer has a rotatably mounted drying drum for receiving laundry to be dried (load) and a drive motor for rotary drive of this drying drum.
  • the drive motor is a single-phase or multi-phase electric motor, which is controlled by a frequency converter.
  • the rotary drive of the drying drum can be carried out with the optimum speed for the current operation (drying program, operating state) of the tumble drier, whereby the drying process of the tumble dryer can be improved and the operational reliability of the tumble dryer can be increased ,
  • the frequency converter includes a power drive for the single- or multi-phase electric motor and a phase current measuring device for detecting the phase currents and / or phase voltages.
  • a rotational speed measuring device for detecting the rotational speed and / or a position measuring device for detecting the rotational angle of the electric motor is also provided.
  • an increased mechanical load of the electric motor can be determined, so that the electric motor can optionally be switched off before the motor winding reaches inadmissibly high temperatures.
  • a loading amount and / or type of the drying drum can be determined.
  • a degree of drying of the laundry in the drying drum can be determined. The drying process of the tumble dryer can then be optimized to the parameters thus determined.
  • a heater for heating a process air by the drying drum is further provided and this heating is associated with a switching means for switching on and off of the heater.
  • This switching means is optionally integrated in the frequency converter or in a main control of the tumble dryer.
  • a blocking of the electric motor for the drying drum can be determined, for example, so that the heater can optionally be switched off for safety reasons.
  • a faulty rotary drive of the drying drum by the electric motor eg broken or cracked belt
  • a process air blower for blowing a process air through the drying drum.
  • the drive motor of the drying drum can then also be designed to drive this process air blower in order to achieve a compact construction of the entire drive of the tumble dryer.
  • FIG. 1 a highly simplified representation of the construction of a clothes dryer according to the present invention.
  • FIG. 1 shows a drying drum 1 of a clothes dryer, which can be loaded in a known manner with laundry to be dried 3.
  • the drying drum 1 is rotatably mounted in the housing of the clothes dryer and is driven in rotation by a drive motor 4 via a belt 2.
  • the drive motor 4 for the drying drum 1 is generally a single- or multi-phase electric motor.
  • three-phase electric motors such as three-phase asynchronous motors, BLDC motors (brushless DC motors), PMAC motors (permanent magnet AC motors) or BLPM motors (brushless permanent magnet motors) are suitable without the invention on these special engine types should be limited.
  • the invention will be explained in detail below using the example of a three-phase asynchronous motor.
  • the drive motor 4 for the drying drum 1 is driven by a frequency converter 14.
  • the frequency converter 14 has a mains connection 13, a mains rectifier 11 connected thereto, a three-phase power control 8 connected downstream of the mains rectifier 11, and a DC link capacitor 10 connected between the mains rectifier 11 and the power control 8. Since the construction and operation of such a frequency converter 14 are well known to those skilled in the art, a more detailed description can be dispensed with. In addition, the skilled person will be able to easily adapt the frequency converter 14 to the respective electric motor 4 for driving the drying drum 1.
  • the frequency converter 14 is preferably coupled to a main controller 15 of the clothes dryer (e.g., by serial bus communication).
  • This main controller 15 usually includes a microcontroller and in turn is connected to an input device via which a user can select, for example, a drying program.
  • the tumble dryer furthermore has a process air blower (not shown) for blowing a process air 7 through the drying drum 1 and a heater 6 for heating this process air 7.
  • a process air blower (not shown) for blowing a process air 7 through the drying drum 1 and a heater 6 for heating this process air 7.
  • a switching means 12 is provided for switching on and off of the heater 6.
  • This switching means 12 is used in particular for the safety shutdown of the heater 6, wherein different operating states of the tumble dryer or its components may require or make desirable a heater shutdown.
  • the switching means 12 associated with the heater 6 of the process air 7 may for example be integrated in the frequency converter 14, as in the embodiment shown, or may also be arranged in the main controller 15.
  • the drive motor 4 can be used for the drying drum 1 or a separate drive motor (not shown) can be used.
  • a common drive motor 4 results in a compact design, as for example from the above-mentioned publications DE 199 04 993 C2 and DE 10 2004 055 927 A1 is known.
  • the drive motor 4 is then used in a condensation clothes dryer usually also for driving a cooling air blower (not shown) for a heat exchanger of a condensing device.
  • a drive motor 4 separate from the drive motor 4 for the drying drum 1 drive motor is used for the process air blower (and the cooling air blower).
  • this drive motor is advantageously also a single- or multi-phase electric motor used, so that the fan can be operated at variable speed.
  • the process air stream 7 can be adapted to the aerodynamic resistance of the exhaust air duct or the air flow profile can be optimized in the further program sequence.
  • an asynchronous motor which can be operated in single phase on the network with an auxiliary winding for driving the process air blower.
  • this drive motor is advantageously also used for a cooling air blower of a condensation tumble dryer. in principle but is also the use of a total of three separate drive motors for these components conceivable.
  • a speed measuring device 5 for detecting the rotational speed of the drive motor 4 and an integrated in the frequency converter 14 phase current measuring device 9 are provided for detecting the applied from the power drive 8 of the frequency converter 14 to the three phases of the drive motor 4 motor currents in this dryer.
  • the clothes dryer may additionally be provided with other sensor arrangements known from conventional clothes dryers (e.g., sensors for measuring voltage, current, power, torque, temperature, weight, etc.).
  • the two mentioned measuring devices 5 and 9 are in a multi-phase electric motor 4, which is driven by a frequency converter 14, usually present anyway, so that for the drive motor 4 of the tumble dryer, a standard motor without the need for modifications can be used (sensorless variant).
  • the heater 6 is switched by means of the switching means 12 off. This ensures that at standstill of the drying drum 1 no overheating or even ignition located near the air inlet laundry items 3 by the heater 6, which is usually operated at high power takes place.
  • the drive motor 4 is switched off via the power control 8 of the frequency converter 14 before the Motor winding reaches impermissibly high temperatures (thermal motor protection).
  • More complex speed profiles for determining the load on the determination of the moment of inertia of the drying drum are, for example, from the above-mentioned publications DE 199 28 657 A1 and DE 103 05 675 B3 known.
  • the degree of drying or dewatering of the laundry 3 in the drying drum 1 can be determined by the loading / mass inertia decreasing in the course of the drying process. This information can be used advantageously to terminate the drying process upon reaching a predetermined degree of drying or dewatering.

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

Claims (16)

  1. Sèche-linge doté d'un tambour de séchage (1) disposé de façon à pouvoir tourner et servant à recevoir du linge (3) à sécher et d'un moteur d'entraînement (4) servant à entraîner en rotation le tambour de séchage (1) ;
    le moteur d'entraînement (4) étant un moteur électrique mono ou polyphasé ; et
    un convertisseur de fréquence (14) étant prévu pour exciter le moteur électrique (4) ;
    caractérisé en ce que :
    le convertisseur de fréquence (14) contient un système d'excitation de la puissance (8) pour le moteur électrique (4) mono ou polyphasé et un dispositif de mesure de courant de phase (9) pour détecter les courants de phase et/ou les tensions de phase.
  2. Sèche-linge selon la revendication 1, caractérisé en ce que :
    l'on prévoit en outre un dispositif de mesure de vitesse de rotation (5) servant à détecter la vitesse de rotation et/ou un dispositif de mesure de position servant à détecter l'angle de rotation du moteur électrique (4).
  3. Sèche-linge selon la revendication 1 ou 2, caractérisé en ce que :
    un chauffage (6) servant à chauffer un air de traitement (7) au travers du tambour de séchage (1) est en outre prévu ; et
    un moyen de connexion (12) est associé au chauffage (6) pour connecter et déconnecter le chauffage.
  4. Sèche-linge selon la revendication 3, caractérisé en ce que :
    le moyen de connexion (12) du chauffage (6) est intégré dans le convertisseur de fréquence (4).
  5. Sèche-linge selon la revendication 3, caractérisé en ce que :
    le moyen de connexion (12) du chauffage (6) est intégré dans un élément de commande principal (15) du sèche-linge.
  6. Sèche-linge selon l'une quelconque des revendications 1 à 5, caractérisé en ce que :
    une soufflerie d'air de traitement est également prévue pour souffler un air de traitement (7) au travers du tambour de séchage (1) ; et
    le moteur d'entraînement (4) du tambour de séchage (1) est également réalisé pour entraîner la soufflerie d'air de traitement.
  7. Sèche-linge selon l'une quelconque des revendications 1 à 5, caractérisé en ce que :
    une soufflerie d'air de traitement est également prévue pour souffler un air de traitement (7) au travers du tambour de séchage (1) ; et
    un moteur d'entraînement séparé du moteur d'entraînement (4) du tambour de séchage (1) est prévu pour entraîner la soufflerie d'air de traitement.
  8. Procédé d'utilisation d'un sèche-linge doté d'un tambour de séchage (1) disposé de façon à pouvoir tourner et servant à recevoir du linge (3) à sécher et d'un moteur d'entraînement (4) servant à entraîner en rotation le tambour de séchage (1) ;
    le moteur d'entraînement (4) étant un moteur électrique mono ou polyphasé ; et
    le moteur électrique (4) étant excité par un convertisseur de fréquence (14) ;
    caractérisé en ce que :
    le convertisseur de fréquence (14) détecte les courants de phase et/ou les tensions de phase du moteur électrique (4) mono ou polyphasé.
  9. Procédé selon la revendication 8, caractérisé en ce que :
    une vitesse de rotation et/ou un angle de rotation du moteur électrique (4) sont également détectés.
  10. Procédé selon la revendication 8 ou 9, caractérisé en ce que :
    une charge mécanique accrue du moteur électrique (4) peut être déterminée sur la base des courants de phase détectés et/ou des tensions de phase détectées et/ou de la vitesse de rotation détectée et/ou de l'angle de rotation détecté du moteur électrique (4) ; et
    le moteur électrique (4) est déconnecté en cas de détermination d'une charge mécanique accrue du moteur électrique (4).
  11. Procédé selon l'une quelconque des revendications 8 à 10, caractérisé en ce que :
    une quantité de charge et/ou un type de charge du tambour de séchage (1) est déterminé sur la base des courants de phase détectés et/ou des tensions de phase détectées et/ou de la vitesse de rotation détectée et/ou de l'angle de rotation détecté du moteur électrique (4).
  12. Procédé selon l'une quelconque des revendications 8 à 11, caractérisé en ce que :
    un degré de séchage et un degré d'essorage du linge (3) se trouvant dans le tambour de séchage (1) est déterminé sur la base des courants de phase détectés et/ou des tensions de phase détectées et/ou de la vitesse de rotation détectée et/ou de l'angle de rotation détecté du moteur électrique (4).
  13. Procédé selon l'une quelconque des revendications 8 à 12, caractérisé en ce que :
    un chauffage (6) servant à chauffer un air de traitement (7) au travers du tambour de séchage (1) est en outre prévu ;
    un blocage du moteur électrique (4) peut être déterminé sur la base des courants de phase détectés et/ou des tensions de phase détectées et/ou de la vitesse de rotation détectée et/ou de l'angle de rotation détecté du moteur électrique (4) ; et
    le chauffage (6) est déconnecté en cas de détermination d'un blocage du moteur électrique (4).
  14. Procédé selon l'une quelconque des revendications 8 à 13, caractérisé en ce que :
    un chauffage (6) servant à chauffer un air de traitement (7) au travers du tambour de séchage (1) est en outre prévu ;
    un entraînement en rotation défaillant du tambour de séchage (1) par le moteur électrique (4) peut être déterminé sur la base des courants de phase détectés et/ou des tensions de phase détectées et/ou de la vitesse de rotation détectée et/ou de l'angle de rotation détecté du moteur électrique (4) ; et
    le chauffage (6) est déconnecté en cas de détermination d'un entraînement en rotation défaillant du tambour de séchage (1) par le moteur électrique (4).
  15. Procédé selon l'une quelconque des revendications 8 à 14, caractérisé en ce que :
    une soufflerie d'air de traitement est en outre prévue pour souffler un air de traitement (7) au travers du tambour de séchage (1) ; et
    la soufflerie d'air de traitement est également entraînée par le moteur d'entraînement (4) du tambour de séchage (1).
  16. Procédé selon l'une quelconque des revendications 8 à 14, caractérisé en ce que :
    une soufflerie d'air de traitement est également prévue pour souffler un air de traitement (7) au travers du tambour de séchage (1) ; et
    la soufflerie d'air de traitement est entraînée par un moteur d'entraînement séparé du moteur d'entraînement (4) du tambour de séchage (1).
EP09729448.2A 2008-04-11 2009-04-08 Sèche-linge Revoked EP2260138B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09729448T PL2260138T3 (pl) 2008-04-11 2009-04-08 Suszarka do ubrań

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008018356A DE102008018356A1 (de) 2008-04-11 2008-04-11 Wäschetrockner
PCT/EP2009/002583 WO2009124736A1 (fr) 2008-04-11 2009-04-08 Sèche-linge

Publications (2)

Publication Number Publication Date
EP2260138A1 EP2260138A1 (fr) 2010-12-15
EP2260138B1 true EP2260138B1 (fr) 2013-06-12

Family

ID=41009908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09729448.2A Revoked EP2260138B1 (fr) 2008-04-11 2009-04-08 Sèche-linge

Country Status (6)

Country Link
US (1) US20110023322A1 (fr)
EP (1) EP2260138B1 (fr)
DE (1) DE102008018356A1 (fr)
ES (1) ES2425494T3 (fr)
PL (1) PL2260138T3 (fr)
WO (1) WO2009124736A1 (fr)

Cited By (1)

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EP2281935A1 (fr) 2009-08-07 2011-02-09 BSH Bosch und Siemens Hausgeräte GmbH appareil ménager avec un moteur électrique

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DE102012207741A1 (de) * 2012-05-09 2013-11-14 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb eines Trockners mit variabler Motordrehzahl während einer Aufheizphase sowie hierfür geeigneter Trockner
DE102012221919A1 (de) 2012-11-29 2014-06-05 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit einem beleuchtbaren Behandlungsraum
DE102013202969A1 (de) * 2013-02-22 2014-08-28 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät, insbesondere Wäschetrockner, mit einem bürstenlosen Gleichstrommotor und Verfahren zum Betreiben eines bürstenlosen Gleichstrommotors in einem Haushaltsgerät
EP2910883A1 (fr) 2014-02-03 2015-08-26 Kordecka, Wieslawa Machine de séchage permettant le séchage d'objets mouillés avec circulation de fluide de séchage et procédé de séchage pour le séchage d'objets humides
EP2910882A1 (fr) 2014-02-03 2015-08-26 Kordecka, Wieslawa Machine de séchage permettant le séchage d'objets mouillés avec circulation de fluide de séchage et procédé de protection de la pompe à chaleur de la machine de séchage pour le séchage d'objets humides contre la surchauffe
DE102016220009A1 (de) * 2016-10-13 2018-04-19 Continental Automotive Gmbh Schaltvorrichtung für eine elektrische Maschine, Klimakompressoranordnung mit elektrischer Maschine und Verfahren zum Betreiben einer elektrischen Maschine und eines Heizelements
CN111118823B (zh) * 2019-12-27 2022-08-02 无锡飞翎电子有限公司 洗衣机的控制装置及洗衣机

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2281935A1 (fr) 2009-08-07 2011-02-09 BSH Bosch und Siemens Hausgeräte GmbH appareil ménager avec un moteur électrique

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WO2009124736A1 (fr) 2009-10-15
ES2425494T3 (es) 2013-10-15
EP2260138A1 (fr) 2010-12-15
PL2260138T3 (pl) 2013-11-29
DE102008018356A1 (de) 2009-10-15
US20110023322A1 (en) 2011-02-03

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