EP2488688A1 - Household appliance, particularly for treating textile items - Google Patents
Household appliance, particularly for treating textile itemsInfo
- Publication number
- EP2488688A1 EP2488688A1 EP10776430A EP10776430A EP2488688A1 EP 2488688 A1 EP2488688 A1 EP 2488688A1 EP 10776430 A EP10776430 A EP 10776430A EP 10776430 A EP10776430 A EP 10776430A EP 2488688 A1 EP2488688 A1 EP 2488688A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- household appliance
- reversible
- dynamoelectric machine
- driving
- during
- 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.)
- Granted
Links
- 239000004753 textile Substances 0.000 title claims abstract description 19
- 230000002441 reversible effect Effects 0.000 claims abstract description 42
- 238000005406 washing Methods 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000004146 energy storage Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 14
- 230000008901 benefit Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008646 thermal stress Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/20—Arrangements for water recovery
-
- 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/08—Control circuits or arrangements thereof
Definitions
- the present invention refers to a household appliance.
- the invention refers to a household appliance having a casing or a cabinet, a rotatable member rotatably mounted in the casing or cabinet, a reversible dynamoelectric machine, operatively coupled to the rotatable member for causing rotation thereof, and control means for driving the reversible dynamoelectric machine during an operation cycle performable by the household appliance, wherein the control means are suitable for driving the reversible dynamoelectric machine to generate a driving torque, with the aim of moving the rotatable member to acquire and/or maintain one or more substantially determined rotational speeds, the control means being further configured for driving the reversible dynamoelectric machine with the aim of performing, during the operation cycle, of one or more steps of controlled braking of the rotation of the rotatable member, where during a step of controlled braking, the reversible dynamoelectric machine generates electric energy.
- the invention has a preferred application in the field of machines for treating textile items, such as household washing machines, drying machines, washing-drying machines, centrifugal driers.
- Household appliances for treating textile items comprise a basket rotatable within a cabinet, suitable to hold the items to be treated.
- the basket is rotated by an electric machine, typically an electric motor.
- the motor that is used is often a variable speed motor given that, especially in case of household appliances such as washing machines and drying-washing machines, there arises the need of rotating the basket at different speeds during different steps of the treatment cycle.
- the basket should rotate at a relatively low speed (for example 40-60 rpm); during some steps of distributing the load, which precede the centrifugal steps, the rotational speed of the basket must be sufficient (for example 90-120 rpm) to allow the items to adhere - due to the centrifugal force - against the peripheral wall of the basket; during the centrifugal steps, which follow the distribution steps, the basket must instead acquire very high rotational speeds (for example 1000 rpm and higher).
- a relatively low speed for example 40-60 rpm
- the rotational speed of the basket must be sufficient (for example 90-120 rpm) to allow the items to adhere - due to the centrifugal force - against the peripheral wall of the basket; during the centrifugal steps, which follow the distribution steps, the basket must instead acquire very high rotational speeds (for example 1000 rpm and higher).
- Another technique useable for slowing and/or stopping the basket is that of providing for a mechanical breaking system, controlled by the control unit of the household appliance to intervene when the power supply is disconnected from the motor itself.
- the intervention and the operation of such mechanical systems however have the effect of generating noise and/or vibrations.
- a technique that allows slowing and/or stopping the basket in a reliable manner and without generating noise or vibrations is represented by the so-called electric or dynamic braking, which consists in driving the motor in such a manner to progressively reduce the speed thereof.
- This solution is used for example in the case of machines for treating textile items provided with an induction motor, usually three-phase, controlled through an inverter circuit or inverter.
- the control unit drives the inverter in such a manner that the latter drives the motor dynamically, with the aim of reaching and maintaining the desired operational speed.
- the inverter may also be driven with the aim of progressively slowing the rotational speeds of the motor, even up to obtaining the stopping thereof.
- a solution of this type is for example known from JP-A-2001-046777.
- An object of the invention is essentially that of providing a household appliance, particularly for treating textile items, of the type indicated in the introduction of the present description, wherein the energy generated during the step of electrically braking the reversible dynamoelectric machine does not cause considerable thermal stresses on the motor itself and on other components of the household appliance, such as the inverter.
- Another object of the invention is essentially that of providing a household appliance, particularly for treating textile items, of the type indicated in the introduction of the present description, which allows reducing electric energy consumptions in the household level.
- Another object of the invention is that of providing such household appliance being easy to manufacture and inexpensive, but safe and reliable in operation.
- a household appliance of the type described above is characterized in that it is provided with circuit means prearranged for recovering and making the electric energy - generated by the reversible dynamoelectric machine during the controlled braking steps - useable.
- the electric energy generated by the dynamoelectric machine during the controlled braking steps should not be dissipated due to the Joule effect but, on the contrary, it may be recovered and become an additional resource, which may contribute to the overall reduction of the household consumptions of electric energy.
- control means comprise a microprocessor control unit and the circuit means comprise least one switchable electric device, driven by the control unit with the aim of performing the controlled braking steps.
- the abovementioned circuit means further comprise a rechargeable accumulator.
- the switchable electric device is driven by the control unit, substantially upon starting a controlled braking step, to acquire a first switching position, in which the dynamoelectric machine is excluded from the power supply circuit and the accumulator may be charged by the electric energy produced by the dynamoelectric machine.
- the control unit drives the switchable electric device to bring it to acquire a second switching position, in which the dynamoelectric machine is once again connected to the power supply circuit, from which the accumulator is excluded instead.
- the electric energy stored in the accumulator is made available to supply a power supply voltage to one or more electric loads of the household appliance, particularly loads with low electrical absorption, such as for example the control unit, a user interface thereof or components of the latter, or even an internal device for transmitting and/or receiving data.
- the accumulator may be used for supplying power to the control system of the household appliance, or to the parts thereof, when it is in stand-by condition.
- the stand-by - or pre-start - is that operating mode of the household appliances halfway between that of complete OFF condition and that of actual ON condition, which allows switching ON and using the apparatus itself more rapidly with respect to the OFF mode.
- the energy stored in the accumulator may thus be advantageously used for reducing the consumption of the household appliance connected to the respective electric power supply, thus supplying - to the control system - the energy required to maintain the stand-by condition (supplying the electronic board, the microprocessor, the timer or a display, when present).
- the stand-by condition supplying the electronic board, the microprocessor, the timer or a display, when present.
- such solution allows covering, partly or totally, the amount of energy absorbed from the power supply socket in stand-by mode, and thus maintain the consumption of the household appliance below a given value, indicatively comprised between about 0.5 and 2 W.
- another advantage of such application of the invention lies in the fact that the energy stored in the accumulator also contributes to improving energy efficiency class of the household appliance.
- the household appliance has a voltage output connector, particularly for direct voltage, accessible by a user, which is electrically connected to the rechargeable accumulator.
- the electric energy stored in the accumulator may be advantageously drawn and used, through the abovementioned output connector, with the aim of supplying a power supply voltage to electric devices outside the household appliance, particularly devices with low electric absorption.
- the abovementioned connector may be used to supply voltage to the battery of a mobile phone, or an mp3 reader, or a laptop or palmtop computer, and so on and so forth. This also allows obtaining evident benefits in terms of energy saving within the household environment.
- the abovementioned circuit means comprise a plurality of switchable electric devices belonging to an inverter circuit, particularly a two-phase inverter circuit.
- the control unit drives the switchable electric devices of the inverter circuit so that the latter produces - starting from the voltage generated by the dynamoelectric machine - a sinusoidal voltage having characteristics compatible with that of the power supply system in alternating current which supplies the household appliance, and which may thus be reintroduced into such system.
- a filtering stage configured for treating the alternating voltage generated by the inverter circuit before re-introducing it into the system is also provided for.
- the abovementioned inverter circuit is driven by the control unit to serve as a rectifier circuit, with the aim of supplying a substantially direct power supply voltage to the dynamoelectric machine.
- the reversible dynamoelectric machine is a three-phase motor, particularly an induction motor or a permanent magnets motor
- the control means comprise a respective inverter circuit, particularly a three-phase inverter.
- FIG. 1 and 2 are schematic front view and a schematic partial section, respectively, of a household appliance for treating textile items according to an implementation of the invention
- FIG. 3 and 4 are simplified representations of a control circuit of a reversible dynamoelectric machine of the household appliance of figures 1 and 2, in two different operating conditions;
- FIG. 5 is a simplified representation of a control circuit of a reversible dynamoelectric machine of a household appliance for treating textile items according to a further implementation of the invention.
- FIGS 1 and 2 schematically represent a household appliance, according to an embodiment of the present invention.
- the household appliance is a machine for treating textile items, and specifically a front loading washing machine, indicated in its entirety with 1.
- the invention is however suitable for application even in other types of household appliances for treating textile items, distinguished by the presence of a basket for holding the textile items which is rotated by a reversible dynamoelectric machine, such as for example washer-dryers, dryers and centrifugal dryers, even of the top loading type.
- the invention also finds application in any household appliance having a casing housing a rotatable member which during the operation of the household appliance is suitable to be actuated by at least one electric motor, and in which during one or more steps of the operation of the household appliance the rotatable member is braked through a suitable control of the motor, in such steps of braking the motor generating electric energy.
- the washing machine 1 comprises a bearing structure or cabinet 2, in which a rotatable member - constituted by a linen-holder basket 3, actuatable through a reversible dynamoelectric machine to rotate around a respective axis - is mounted.
- the basket 3 is perforated and the same is mounted to rotate within a tank 4, supported in the cabinet 2.
- the tank 4 is not required, the basket 3 is not perforated and a circuit suitable for the circulation of drying air is provided for, all according to the per se known art.
- the basket 3 and the tank 4 have respective front openings and the basket is accessible to the user by means of an opening, at which a door 5 is provided for.
- the abovementioned reversible dynamoelectric machine is constituted by an electric motor 5 which is operatively coupled to a shaft 3a for actuating the basket 3.
- the motor 5 is an induction motor or a permanent magnets motor which includes a plurality of phase windings, not represented.
- the motor 5 is a three-phase motor, which includes a stator and a rotor, with the phase windings distributed around the stator.
- the washing machine 1 has a system for actuating the basket 3 of the type referred to as "direct drive” according to a term currently used in the field, i.e. with a motor 5 whose stator is fixed directly outside the tank bottom, at a central position, and with the rotor directly associated to the shaft 3 a of the basket 3.
- a motor 5 whose stator is fixed directly outside the tank bottom, at a central position, and with the rotor directly associated to the shaft 3 a of the basket 3.
- an electric motor may be provided for at a conventional position, for example associated to the bottom part of the tank 4 and connected to the shaft 3 a through suitable transmission, for example a belt and pulley system.
- the household appliance 1 has a control system comprising a control unit 7 which manages, among other things, the operation of the motor 5, so as to rotate the basket 3 according to suitable times and modes (speed, rotation periods, pause periods, possible inversions of rotation, etcetera), depending on the characteristics of the treatment cycle selected by a user.
- the control unit 7 comprises preferably at least one microcontroller which includes or to which non-volatile memory means - for example comprising one or more ROM and/or EPROM and/or EEPROM and/or Flash memories - are operatively connected. Operating or management programmes which monitor the execution of treatment cycles executable by the washing machine and the instructions regarding the general functionalities thereof are stored in the memory means.
- a washing agent dispenser of the per se known type, for example having a drawer defining several compartments for holding respective washing agents is indicated with 8.
- a control panel or user interface of the washing machine which is part of the control system thereof, is indicated with 9.
- the user interface 9 comprises an ON/OFF button 9a, a rotary selector 9b for selecting the treatment cycles executable by the washing machine 1, program start button 9c, some buttons 9d for selecting possible options associable to a selected cycle (type of linen, centrifuge exclusion, half load, etcetera) and display means 9e, for example an LCD display.
- the household appliance 1 is provided with at least one output connector, particularly in direct voltage, whose function shall be clarified hereinafter; in the represented example, such connector, indicated with 10, is located on the user interface 9, but such positioning shall not be deemed restrictive.
- an electric power supply cable connected to an alternating voltage source or AC, indicated with Vac, which is assumed to be 230 Volts in this case, is indicated with 11 ; in the example, the source Vac is represented by a power socket present in the household environment in which the washing machine 1 is installed.
- washing machine 1 also comprises all further components required for normal operation thereof (level sensors, water heating resistor, filters, safety components, suspensions, etcetera), which are not represented and described herein in that they are per se known and not strictly inherent to the purposes of the present invention.
- Reference 20 designates a source of substantially direct current or DC of the washing machine 1 , comprising an AC to DC rectifier circuit, which receives an input voltage from Vac, for example a 230 V.
- the DC source 20 includes rectifier diodes, in a bridge configuration.
- the DC source 20 is coupled to a DC-AC inverter indicated with 21, through a line 22 constituting, according to the terminology currently used in the field, a so-called direct current bus or DC bus.
- the source 20 rectifies the alternating voltage and pre-loads the capacitor 23, which improves the direct voltage form factor applied to the inverter 21 , the latter then inverting the direct voltage into the alternating voltage according to the suitable frequency.
- the inverter 21 includes several branches (inverter legs), where each branch includes respective controllable switch devices, connected in a bridge configuration between the positive and negative lines of the DC bus 22.
- Each branch includes respective controllable switch devices, connected in a bridge configuration between the positive and negative lines of the DC bus 22.
- Each branch is connected to a terminal of the three-phase load, i.e. of the motor 5, supplied by the control unit between the two switches 21a, 21b.
- the inverter is a DC/ AC converter, capable of transforming, with suitable control of the branch switches 21a, 21b, the input direct voltage into a three-phase system of output alternating voltage.
- the control of the two branch switches 21a, 21b is of the complementary type.
- the switches 21a, 21b may comprise any controllable electronic switch device, such as bipolar devices, triacs, transistors (FET, MOSFET, IGBT, etcetera).
- Each inverter branch is connected to the control unit 7, which is programmed for driving the switch devices 21a, 21b so as to connect the power on the lines of the DC bus 22 to the motor phases 5, according to a desired pattern.
- the inverter 21 provides for supplying the phase windings of the motor 5 with a desired voltage and frequency, so as to generate - in the motor 5 - the currents required for rotating the rotor.
- the frequency and the amplitude of the output voltage of the inverter 21 are adjusted by the control unit 7 according to any technique per se known in the sector: the specific modes for driving the inverter, with the aim of controlling the motor, are not part of the objects of the present invention.
- the solutions that may be used for reducing the speed of the motor are essentially as follows: a) disconnecting the motor 5 from the mains, not driving the inverter 21 and thus leaving the switches 21a, 21b open; thus, the energy produced by the motor 5 is dissipated by mechanical friction; in practice, there is a free-fall braking and no current flows on the windings of the motor; as explained, such solution requires relatively long times to obtain a considerable deceleration or stop of the basket;
- the controlled deceleration of the motor 5 is obtained by driving the inverter 21, similarly to case c) indicated above, and providing the household appliance with circuit means, additionally with respect to the ones conventionally used, prearranged for recovering and making useable the electric energy generated by the motor itself during the controlled braking steps.
- the abovementioned circuit means comprise means for storing electric energy, selectively connectable to the DC bus 22 between the DC source 20 and the bulk capacitor 23.
- the abovementioned storage means comprise an accumulator 24, of the rechargeable type, which maybe constituted by a bank of capacitors or super-capacitors.
- the accumulator 24 is selectively connectable to the inverter 21 alternatively to the DC source 20 and an electric switch device, indicated with 25, driven by the control unit 7 is provided for such purpose.
- the switch device 25 is constituted by a two-way switch, for example a relay.
- the device 25 closes the circuit between the source 20 and the inverter 21 , thus excluding the accumulator 24; in the second position, observable in figure 4, the device 25 closes the circuit between the accumulator 24 and the inverter 21, thus excluding the source 20, with the ensuing disconnection of the motor from the power supply mains.
- Figure 3 refers to a condition of the circuit typical of a treatment cycle stage executed by the washing machine 1, when the basket should be rotated at a given speed, with the motor 5 which is required to produce a driving torque.
- the diode bridge which constitutes the DC source 20 substantially converts the alternating voltage coming from the Vac sources into direct voltage, with the capacitor 23 which improves the form factor thereof and keeps it constant.
- the inverter 21 supplied in direct current through the DC bus 22, inverts the same in alternating current through a sequential modulation of the switches 21a, 21b, up to obtaining a sinusoidal current capable of rotating the motor 5, according to the required speed and torque.
- control unit 7 - for example starting from the measurement of the currents and from the measurement or estimation of the speed/position of the rotor detected through known means and methods, and according to the desired speed and the torque load required for executing the treatment cycle stage - imposes a sinusoidal three-phase voltage triplet with variable amplitude and frequency, by suitably operating on the control signals of the six switches 21a, 21b of the inverter 21.
- the mains supplies the power required to maintain the motor 5 rotating and thus the energy flows from the mains towards the motor, as indicated by the arrow F.
- the switch device 25 prevents the accumulator 24 from being charged from the mains.
- the control unit 7 controls the switching of the device 25, to the position of figure 4.
- the electric energy produced by the motor 5 in the deceleration step controlled by the inverter 21 may thus be stored in the accumulator 24.
- any risk of overloading the capacitor 23 is also avoided, given that the energy coming from the motor 5 is used for charging the auxiliary accumulator 24.
- the accumulator device 25 prevents the accumulator 24 from being loaded even by the mains.
- control unit 7 controls a new switching of the device 25, or the return thereof to the condition of figure 3; in such manner, the auxiliary accumulator 24 is disconnected from the inverter 21 and the mains is reconnected to the inverter itself, for a control of the motor 5 with the aim of a possible new speed rise ramp.
- the energy stored in the accumulator 24 may be used for providing a power supply voltage to one or more electric loads of the household appliance, preferably low absorption loads, in the order of tens of W; suitable power supply means are provided for such purpose, schematically represented by the line indicated with 26, for connecting the accumulator to the load or to the loads of interest.
- the voltage made available by the accumulator may be possibly transformed through the means 26, depending on the type of load to be made available, through per se known methods and devices.
- the energy stored in the accumulator 24 may be used for supplying the display 9e or other electric components (for example warning lights or LEDs or a timer) of the user interface 9. Additionally or alternatively, the energy of the accumulator may be used for supplying - wholly or partly - the control unit 7, particularly when the latter is in a respective stand-by condition, for example at the end of a completed treatment cycle. For such purpose, as mentioned previously, the energy stored in the accumulator 24 may be used for reducing the consumption of the household appliance 1 connected to the source or socket Vac, supplying to the control system or a parts thereof (electronic board, microcontroller, timer or display if present), the energy required to maintain the stand-by condition.
- the amount of energy absorbed from the socket Vac in stand-by mode is thus partly or entirely covered, and the consumption of the household appliance may be kept below a given value, indicatively comprised between 0.5 and 2 W, with evident benefits even regarding the improvement of the energy efficiency class of the household appliance.
- the household appliance is provided with a communication device, for example a wireless transceiver, with the aim of allowing the transmission and/or reception of information and/or controls on a household bus: such communication device may be supplied through the rechargeable accumulator 24.
- the accumulator 24 may also be used for supplying electric loads of the machine 1 different from those indicated by way of example.
- the accumulated electric energy, possibly transformed by the means 26, may be drawn through the output connector in direct voltage 10 present on the user interface 9.
- the connector 10 of any known type, may for example be used for supplying small electric loads outside the household appliance, such as for example the battery of a mobile phone, a music file reader (such as an mp3 reader), or even a camera, a laptop computer and, generally any electric load or device with low consumption.
- Figure 5 illustrates a second embodiment of the invention, according to which the electric energy produced by the motor 5 during the controlled braking steps is introduced into the household power supply system Vac.
- Reference numbers of figures 3 and 4 are used in such figures to indicate elements technically equivalent to those described above.
- the circuit means for recovering and using the energy produced by the motor 5 comprise a further inverter 30, controlled by the unit 7, which replaces the diode bridge (20) of the embodiment of figures 3 and 4.
- the rechargeable accumulator 24 and the switch device 25 are not provided for in such embodiment.
- the inverter 30 is a two-phase inverter, including two branches or legs, each of which respectively includes controllable switch devices 30a, 30b, connected in a bridge configuration between the positive and negative lines of the DC bus 22.
- the unit 7 controls the switch devices 30a, 30b of the two-phase inverter 30, thus essentially performing the same functions as the diode bridge (20) of the embodiment of figures 3-4, with the aim of transforming the alternating voltage coming from the source Vac into direct voltage on the DC bus 22.
- the unit 7 also drives the switches 30a, 30b of the inverter 30 so that the latter, starting from the voltage at the ends of the capacitor 23, generates a sinusoidal voltage having characteristics compatible with that available on the supply system Vac. Furthermore, in such embodiment the sinusoidal voltage towards the supply system Vac generated by the two-phase inverter 30 is suitably treated through a filtering stage 31 , through per se known means, before being reintroduced into the power supply system.
- the electric energy generated by the motor 5 in the controlled braking steps does not cause thermal stresses on the motor itself or on the switch devices of the inverter 21. Due to the presence of the two-phase inverter 30, such energy may be recovered and reintroduced into the power supply system, so as to be available for other uses, with clear advantage in terms of overall energy saving of the household environment.
- the invention was previously described with reference to a three-phase motor, in particular an induction motor or a three-phase permanent magnet controlled through an inverter. It is however clear to a man skilled in the art that the invention is also applicable in case of other types of reversible dynamoelectric machines useable for the actuation of the basket of machines for treating textile items or household appliances in general.
- the bulk capacitor 23 is connected to the DC bus 22 upstream of the switchable device 25, or between the source 20 and such device.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10776430T PL2488688T3 (en) | 2009-10-15 | 2010-10-14 | Household appliance, particularly for treating textile items |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000146U ITTO20090146U1 (en) | 2009-10-15 | 2009-10-15 | APPLIANCES, PARTICULARLY FOR THE TREATMENT OF TEXTILE ITEMS |
PCT/IB2010/054650 WO2011045762A1 (en) | 2009-10-15 | 2010-10-14 | Household appliance, particularly for treating textile items |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2488688A1 true EP2488688A1 (en) | 2012-08-22 |
EP2488688B1 EP2488688B1 (en) | 2014-11-12 |
Family
ID=43728350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10776430.0A Active EP2488688B1 (en) | 2009-10-15 | 2010-10-14 | Household appliance, particularly for treating textile items |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2488688B1 (en) |
ES (1) | ES2529735T3 (en) |
IT (1) | ITTO20090146U1 (en) |
PL (1) | PL2488688T3 (en) |
WO (1) | WO2011045762A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITFI20120148A1 (en) * | 2012-07-17 | 2014-01-18 | Alessio Manzini | SOLAR WASHING MACHINE WITH ENERGETIC AUTONOMY |
ITTO20131040A1 (en) | 2013-12-18 | 2015-06-19 | Indesit Co Spa | MACHINE WASHING MACHINE OR WASHING MACHINE INCLUDING AN ELECTRIC CURRENT GENERATOR |
DE102014013717A1 (en) * | 2014-09-16 | 2016-03-17 | Diehl Ako Stiftung & Co. Kg | Electronic home appliance and method for operating an electronic household appliance |
ITUB20153509A1 (en) * | 2015-09-09 | 2017-03-09 | Elbi Int Spa | APPLIANCE APPLIANCE, IN PARTICULAR WASHING MACHINE. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3608337A (en) * | 1968-10-31 | 1971-09-28 | Fisher Bendix Ltd | Locking device |
US4250435A (en) * | 1980-01-04 | 1981-02-10 | General Electric Company | Clock rate control of electronically commutated motor rotational velocity |
US5301523A (en) * | 1992-08-27 | 1994-04-12 | General Electric Company | Electronic washer control including automatic balance, spin and brake operations |
JP2001046777A (en) | 1999-08-10 | 2001-02-20 | Hitachi Ltd | Electric washing machine |
JP3841412B2 (en) * | 2003-02-17 | 2006-11-01 | 株式会社東芝 | Washing machine |
-
2009
- 2009-10-15 IT IT000146U patent/ITTO20090146U1/en unknown
-
2010
- 2010-10-14 ES ES10776430.0T patent/ES2529735T3/en active Active
- 2010-10-14 WO PCT/IB2010/054650 patent/WO2011045762A1/en active Application Filing
- 2010-10-14 EP EP10776430.0A patent/EP2488688B1/en active Active
- 2010-10-14 PL PL10776430T patent/PL2488688T3/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2011045762A1 * |
Also Published As
Publication number | Publication date |
---|---|
ITTO20090146U1 (en) | 2011-04-16 |
EP2488688B1 (en) | 2014-11-12 |
WO2011045762A1 (en) | 2011-04-21 |
ES2529735T3 (en) | 2015-02-25 |
PL2488688T3 (en) | 2015-05-29 |
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