EP3656908B1 - Machine à laver avec un dispositif de filtrage - Google Patents

Machine à laver avec un dispositif de filtrage Download PDF

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Publication number
EP3656908B1
EP3656908B1 EP19211506.1A EP19211506A EP3656908B1 EP 3656908 B1 EP3656908 B1 EP 3656908B1 EP 19211506 A EP19211506 A EP 19211506A EP 3656908 B1 EP3656908 B1 EP 3656908B1
Authority
EP
European Patent Office
Prior art keywords
washing machine
housing
filter device
water
filter
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.)
Active
Application number
EP19211506.1A
Other languages
German (de)
English (en)
Other versions
EP3656908A1 (fr
Inventor
Marek Klimecki
Michael Seikel
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.)
PAS Deutschland GmbH
Original Assignee
PAS Deutschland GmbH
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Filing date
Publication date
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Publication of EP3656908A1 publication Critical patent/EP3656908A1/fr
Application granted granted Critical
Publication of EP3656908B1 publication Critical patent/EP3656908B1/fr
Active legal-status Critical Current
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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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
    • D06F2103/42—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to filters or pumps
    • 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
    • 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
    • D06F2105/62—Stopping or disabling machine operation
    • 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 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor

Definitions

  • the present invention relates to a filter device for a washing machine for filtering water and a washing machine having such a filter device.
  • most of the washing machines known to date provide a filter device which is arranged in a lower part of the washing machine, in particular in the vicinity of the floor of the washing machine.
  • the filter device is hidden behind a flap and pushed horizontally into the housing of the washing machine.
  • the flap has to be opened by a user mostly on his knees, the sieve mostly loosened by means of a screwing movement and then removed. Puddles are formed in front of the machine due to the leakage of residual water.
  • a drip tray for water must be provided will. Then the flap can be opened to gain access to the filter.
  • the next thing to do is to drain water from the filter.
  • an outlet is attached next to the filter, through which water that is in the water circuit of the washing machine, in particular in the filter, drains and can be collected in the drip tray.
  • the outlet can be provided with a cloth or a stopper. Only then can the filter be removed for cleaning.
  • Such a washing machine with filter devices is for example from the publication EP 1 751 343 A1 known.
  • dryer-washing machine combinations which also have a filter device.
  • This filter device must be suitable both to filter water in a washing cycle and to filter hot air in a drying cycle.
  • the document shows EP 2 053 157 A1 a dryer-washing machine combination.
  • the dryer-washing machine combination has a washing assembly, a dryer assembly and a filter assembly.
  • the washing assembly is designed so that a solvent circulates along a predetermined washing path which extends through a laundry drum.
  • the dryer assembly is configured to circulate hot air along a predetermined drying path that extends through the drum.
  • the filter assembly is configured to remove fibers, lint, and dust from the solvent circulating along the wash path during a wash cycle.
  • the filter assembly is further configured to remove fibers, lint, and dust from the hot air circulating along the drying path during the drying cycle.
  • the filter assembly is formed such that the fibers, lint and dust from the solvent are collected at a predetermined position along the drying path so that hot air flows over the collected fibers, lint and dust during the drying cycle.
  • the publication also shows DE 10 2014 214 621 A1 a household appliance with a tub for receiving washing water and a pumping system that includes a pump for pumping or pumping out the washing water, in which the tub includes a water inlet to the pump with an insert chamber into which a removable filter unit is inserted for filtering the washing water.
  • the publication also shows WO 2013 047 783 A1 a filter device for a washing machine having a water supply path for supplying water from an external water source to the washing machine.
  • the filter device is provided with a filter housing, a core element, a filter material and a holding plate.
  • the filter housing is a container-shaped member that includes a water flow inlet at one end and a water flow outlet at the other end.
  • the core member is positioned and housed between the water flow inlet and the water flow outlet in the filter case, and includes a plurality of through holes in the peripheral wall that forms a cylinder shape.
  • the filter material is a cloth material wound in a cylinder shape and is retained by the core element.
  • the holding plate is supported at one end of the core element so that it covers the filter material from above, and comprises a surface which is directed towards the inflow direction of water from the flow inlet of the filter housing. After the water is taken in from the water inlet on the holding plate, the filter device filters impurities by directing the water from the outer peripheral surface of the filter material to the core side.
  • the publication also shows DE 10 2011 086 137 A1 a washing machine with a tub, a washing drum, a water supply system, a drain pump, a program control and at least one filtration device, wherein the at least one filtration device is arranged between the tub and a feed line to the tub and the washing machine is designed so that an aqueous solution in the tub Liquid can be filtered at least temporarily during a laundry treatment step by being passed through the at least one filtration device and fed back to the tub.
  • a method for treating laundry in such a washing machine is also shown.
  • a washing machine with a filter device having a washing machine housing, a drum arranged in the washing machine housing, and a door, the washing machine housing having an access to the drum, the door being at the access to the washing machine housing is arranged, wherein the filter device is arranged on a lower side of the access, the filter device having a housing and a filter device for filtering water, the housing having a water inlet and a water outlet, the water inlet arranged in a vertical direction above the water outlet is, wherein the filter device for filtering the water in the housing is at least partially arranged between the water inlet and the water outlet, wherein the housing is waterproof at least between the water inlet and the water outlet, wherein the filter device ng further comprises a sieve element, wherein the sieve element for filtering the water is arranged between the water inlet and the water outlet, wherein the housing furthermore has an opening through which the filter device can be inserted into the housing, wherein the filter device furthermore has a
  • the water flows through the water inlet into the interior of the housing of the filter device and out of the interior again through the water outlet. Since the filter device between the water inlet and the Water outlet is arranged, the water flows through the filter device and is filtered thereby.
  • the upstream and downstream directions are defined according to the direction of flow of the water.
  • the sieve element is arranged in such a way that the water flows through the sieve element when the water flows from the water inlet to the water outlet.
  • the water is filtered in the process.
  • the filter device can be easily removed through the opening for cleaning and can be reinserted into the housing after cleaning.
  • the housing of the filter device can be closed in a simple manner by means of the closing element. This makes it possible, in particular, to close the housing in a completely watertight manner when the washing machine is in operation, in particular with the addition of a sealing element which creates a seal between the housing and the closing element.
  • a non-positive connection to the housing is preferably achieved by the closing element.
  • the filter device By arranging the filter device at the entrance, a user of the washing machine has easy access to the filter device.
  • the filter device is preferably arranged on a lower side of the access and the opening of the housing of the filter device is arranged on an upper side of the housing. This avoids the fact that no water has to be collected when the filter device is removed from the housing for maintenance or cleaning or when the filter device is reinserted into the housing after maintenance or cleaning.
  • the proposed filter device for a washing machine thus has a compact and watertight structure.
  • the sieve element is designed as a sieve basket.
  • the sieve element is arranged in such a way that the water flows through the sieve element when the water flows from the water inlet to the water outlet.
  • the water is filtered in the process.
  • the filter device has an insert element, the insert element being insertable into the sieve element, in particular the insert element having a filter labyrinth for guiding the water flow from the water inlet to the water outlet.
  • the filter labyrinth forms, for example, a large number of webs on which the water is diverted.
  • foreign bodies such as hair, lint or metal parts, can collect not only in the sieve element but also in the insert element. This improves the overall filter efficiency of the filter device.
  • larger foreign bodies can be stopped in the insert element, which could damage the sieve element if they continue to flow or block the sewage pump, which would result in a customer service call.
  • the closing element has a thread and the housing in the opening has a mating thread designed to be complementary thereto, the thread running around an axis of rotation in particular in one direction of rotation.
  • the closing element can thus be screwed into the opening of the housing in order to close the opening of the housing.
  • the closing element is firmly connected to the housing, in particular without play. In this way, when the washing machine is in operation, it can be avoided that the closing element rattles or comes off unintentionally due to vibrations when the washing machine is in operation.
  • this configuration offers a good possibility of sealing if a sealing element is used between the housing and the closing element.
  • a sealing element in particular a sealing ring, is arranged between the closing element and the housing.
  • This configuration enables the water-bearing housing to be properly sealed off from the environment.
  • a non-positive connection of the closing element to the housing is preferably established, so that the sealing element is pressed against the housing. This improves the seal.
  • the sieve element, the insert element and the closing element can be connected to one another perpendicular to the direction of rotation, in particular the sieve element, the insert element and the closing element can be coupled to one another in a rotationally fixed manner in the direction of rotation.
  • the filter device as a whole to be inserted into the housing or removed from the housing.
  • the individual elements of the filter device can be easily disassembled for cleaning or maintenance of the elements.
  • the filter device also has a sensor device which is designed to detect foreign bodies, in particular lint, lint, microparticles and / or metal.
  • a warning can be triggered, in particular visually or acoustically, if a first threshold value for contamination is exceeded and / or a switch-off signal is generated when a second threshold value for contamination is exceeded.
  • the sensor device has an optical and / or a magnetic sensor.
  • contamination or a fill level of the filter device can be determined in a simple manner.
  • a metallic foreign body can be identified in a simple manner with a magnetic sensor.
  • a warning can be triggered, in particular visually or acoustically, if a first threshold value with regard to the size and / or quantity of the metallic foreign bodies is exceeded and / or a switch-off signal is generated if a second threshold value with regard to the size and / or Amount of metallic foreign bodies is exceeded.
  • the optical sensor has an optical transmitter and an optical receiver, which are arranged on opposite sides of the filter device, the optical transmitter sending light pulses to the optical receiver.
  • a degree of contamination of the filter device can thus be deduced. It should preferably be taken into account here that a light pulse can be blocked by foreign bodies or reaches the receiver with reduced intensity due to the presence of foreign bodies in the filter device.
  • a warning can be triggered, in particular visually or acoustically, if the intensity falls below a first threshold value at the receiver and / or a switch-off signal is generated if the intensity falls below a second threshold value at the receiver.
  • the sieve element has two recesses on two opposite sides, which are arranged such that in the inserted state a beam path of the light pulses runs through the recesses.
  • the recesses are designed with a round cross section, in particular as bores.
  • the magnetic sensor is arranged upstream of the sieve element.
  • This arrangement of the magnetic sensor makes it possible to detect a metallic object or foreign body before it reaches the sieve element. This makes it possible to take appropriate measures to prevent damage to the sieve element. For example, the operation of the washing machine can be stopped if a metallic foreign body is detected.
  • the sensor device generates an analog or digital sensor signal based on the detection of foreign bodies in the filter device.
  • the sensor signal can for example correspond to a measured value, in particular an inductance in the case of a magnetic sensor or an intensity of a light pulse in the case of an optical sensor.
  • This measured value can be passed on in analog or digital form.
  • the sensor device can also be set up to determine a degree of contamination or a type of foreign body, in particular a size of the solid body, on the basis of the measured data, the sensor signal containing the results of this determination.
  • the washing machine also has a control device which is set up to control the washing machine taking into account the sensor signal.
  • the sensor signal contains information about foreign bodies in the filter device or about a degree of contamination of the filter device.
  • the control device can thus take appropriate measures, taking this information into account.
  • a user can be provided with an optical or acoustic signal that includes the detection of a foreign body in the filter device, the degree of contamination of the filter device, or an indication of maintenance or cleaning of the filter device.
  • the control device controls the operation of the washing machine accordingly, taking into account the information received. For example, the pumping power of a pump in the water circuit of the washing machine can be reduced.
  • control device determines a degree of contamination of the filter device on the basis of the sensor signal, with a fill level of the sieve element being determined in particular.
  • the control device can determine the degree of contamination based on these measurement data.
  • control device determines on the basis of the sensor signal whether the sensor signal exceeds a first threshold value, in particular whereby the control device determines that a recognized foreign body is suitable for damaging the washing machine.
  • the first threshold value can be, for example, a threshold value for a measured inductance of a foreign body or a measured intensity of a light pulse. If the measured value exceeds the threshold value, the control device can, as already mentioned above, take appropriate measures.
  • the washing machine also has a display device, the control device being set up to control the display device on the basis of the sensor signal.
  • the display device can be used, for example, to indicate to a user of the washing machine that the filter needs to be cleaned or serviced.
  • the display device can also be set up to display a degree of soiling or a fill level of the filter device.
  • control device is designed to stop operation of the washing machine if the sensor signal exceeds a first threshold value or a degree of contamination of the filter device exceeds a second threshold value.
  • FIG. 1 shows a schematic view of a front side 24 of the washing machine 10, with the front door, the closes the access to the washing drum, is not shown here in the interests of better illustration of the invention.
  • the washing machine basically has a top 25 'and a bottom 25 ".
  • the vertical directions in particular the directions above and below, are therefore to be understood relative to the top 25' and the bottom 25".
  • the horizontal direction in particular the indication of the direction laterally, is therefore to be understood as being perpendicular to the vertical direction.
  • the washing machine 10 has a washing machine housing 12, a washing drum 14, a door 16, a filter device 18, a control device 20 and a display device 22.
  • the washing drum 14 is arranged in the washing machine housing 12.
  • the washing machine housing 12 has an access 28 to the washing drum 14 on the front side 24 of the washing machine 10.
  • At the entrance 28 is the door 16, in Fig. 2 not shown, fastened laterally in a recess 26 so as to be pivotable in order to selectively open or close the access 28.
  • the filter device 18 is arranged below the access 28.
  • the filter device 18 is preferably arranged on an underside of the access 28.
  • the filter device 18 extends from the underside of the access 28 in the direction of the underside 25 ′′ of the washing machine 10.
  • the display device 22 is arranged on the front side 24 of the washing machine 10 above the access 28.
  • the control device 20 is arranged in the washing machine housing 12.
  • the control device 20 is preferably arranged in an upper part of the washing machine housing 12, in particular on or in the vicinity of the upper side 25 ′ of the washing machine 10.
  • the control device 20 is set up to control components of the washing machine.
  • the control device 20 can be set up, for example, to control the operation of the washing machine and / or a display of the display device 22.
  • the Figures 3 and 4 show an embodiment of the filter device 18 from FIG Fig. 1 .
  • the filter device 18 has a housing 30 and a filter device 32.
  • the housing 30 has a water inlet 34 and a water outlet 36.
  • the water inlet 34 is arranged above the water outlet 36 in the vertical direction.
  • the filter device 32 can be inserted or removed from the housing 30.
  • the housing 30 has an opening 31 through which the filter device 32 can be removed or inserted.
  • the filter device 32 is inserted into the housing 30.
  • the filter device 32 can also have a closing element 44 with which the opening 31 of the housing 30 can be closed.
  • a thread can be provided in the closing element 44 and a corresponding mating thread can be provided in the opening 31 of the housing 30.
  • a bayonet lock can also be provided on the closing element.
  • a sealing element for example a sealing ring 52, is preferably provided between the housing 30 and the closing element 44 in order to close the housing 30 with the closing element 44 in a watertight manner.
  • an underside of the housing 30 in the area of the water outlet 36 is only cut open for purposes of illustration or is only partially shown in order to illustrate that the filter device 32 is arranged in the housing 30.
  • the housing completely surrounds the filter device. In other words, apart from the water outlet 36, the underside of the housing 30 is completely closed.
  • the filter device 32 is arranged in the housing 30 at least partially between the water inlet 34 and the water outlet 36 in order to filter the water that flows from the water inlet 34 to the water outlet 36 during operation of the washing machine 10.
  • the housing 30 is watertight at least in the area between the water inlet 34 and the water outlet 36.
  • the filter device 18 can furthermore have a sensor device 38 which is designed to detect foreign bodies, in particular lint, lint, microparticles and / or metal, in the filter device 32.
  • the sensor device 38 can have, for example, an optical and / or a magnetic sensor.
  • Fig. 5 is the filter device 18 from the Figures 3 and 4 shown as an exploded view.
  • the filter device 32 can have a sieve element 40, an insert element 42 and the closing element 44.
  • the closing element 44 can have a base body 46.
  • the base body 46 is essentially cylindrical.
  • the base body 46 has a thread 50.
  • the thread 50 runs in one direction of rotation about an axis of rotation.
  • the axis of rotation corresponds to an axis of symmetry of the symmetrical shape of the base body 50.
  • the axis of symmetry is preferably oriented in the vertical direction.
  • the main body 46 is in the Fig. 5 shown in two views. In the first view it can be seen that the base body can be made hollow. In the second view, the underside of the base body is shown, on which a projection 48 is arranged. Below the thread 50, a sealing ring 52 can be provided around the cylindrical base body 46 in order to close the housing 30 with the closing element 44 in a watertight manner.
  • the closing element 44 can furthermore have a cover 54 with a recess 56, a handle element 58 and a guide element 60.
  • the guide element 60 and the handle element 58 are inserted in the hollow-shaped base body 46.
  • the main body 46 has an open top.
  • the cover 54 closes the open top.
  • the guide member 60 provides a guide for the handle member 58 in the vertical direction so that the handle member 58 is vertically movable.
  • the recess 56 is designed to be complementary to the handle element 58. To actuate the closing element, in particular to rotate the closing element, the handle element 58 can be partially pulled out of the base body in the vertical direction.
  • the insert element 42 can have a receptacle 62 for the projection 48.
  • the receptacle 62 is arranged on an upper side of the insert element 42.
  • the insert element also has a projection 64 on the underside.
  • the insert element 42 serves as a connecting element between the sieve element 40 and the closing element 44.
  • the insert element 42 preferably has a filter labyrinth 66 which is formed from a plurality of webs 68.
  • the insert element 42 can furthermore have two opposing recesses, here bores 70, which are arranged laterally on the insert element 42. Furthermore, the insert element 42 can have two opposing lugs 72, which are also arranged laterally on the insert element 42.
  • the sieve element 40 can have a sieve basket 74.
  • the screen basket 74 is preferably at least approximately cylindrical.
  • the screen basket 74 has an open top and a closed bottom.
  • the screen basket 74 also has two opposing recesses, here bores 76, which are arranged on the side of the screen basket 74.
  • the screen element 40 On the upper side of the screen basket 74, the screen element 40 has two opposing recesses 78 which serve as receptacles for the lugs 72.
  • the sieve element 40 On the underside of the sieve basket 74, the sieve element 40 has a receptacle 80 for the projection 64.
  • the sieve element 40, the insert element 42 and the closing element 44 can be connected to one another in the vertical direction by means of the projections 48, 64 and the receptacles 62, 80 and via the lugs 72 and the corresponding recesses 78.
  • the sieve element 40, the insert element 42 and the closing element 44 can be coupled to one another in a rotationally fixed manner in the direction of rotation.
  • the housing 30 can have a first housing part 82, a second housing part 84 and a cover element 86.
  • the first housing part 82 is connected to the second housing part 84 and the cover element 86 in order to form the housing 30.
  • the first housing part 82 is arranged below the cover element 86 and above the second housing part 84.
  • the first housing part 82 and the cover element 86 each have a recess which form the opening 31.
  • a mating thread 88 is formed in the opening 31 in the first housing part 82 and is formed complementary to the thread 50 of the closing element 44.
  • the first housing part 82 furthermore has the water inlet 34.
  • the water inlet 34 is arranged below the opening 31 on the side of the first housing part 82.
  • the second housing part 84 also has the water outlet 36.
  • the water outlet 36 is arranged on the bottom of the second housing part 84 on the side of the second housing part 84.
  • the sensor device 38 can have a magnetic sensor 90 and / or an optical sensor 94.
  • the magnetic sensor 90 is arranged laterally on the first housing part 82.
  • Two diodes 92 can be arranged on the sensor 90, preferably a red and a green diode.
  • the magnetic sensor 90 is electrically connected to the diodes 92.
  • the diodes 92 can, for example, indicate a state of the sensor, in particular whether a metallic foreign body was detected with the sensor.
  • the magnetic sensor 90 can, for example, use an inductive principle in order to detect metal parts.
  • an inductive principle in order to detect metal parts.
  • use is made of the fact that the relative permeability shifts when a metal part is in the range of action of the sensor.
  • the optical sensor 94 is arranged on the second housing part 84.
  • the optical sensor 94 can in particular be arranged above or upstream of the water outlet 36.
  • the optical sensor 94 can include an optical transmitter 96 and an optical receiver 98.
  • the optical transmitter 96 and the optical receiver 98 are arranged laterally on opposite sides of the second housing part 84.
  • the optical transmitter 96 sends light pulses to the optical receiver 98 through the second housing part 84.
  • the second housing part 84 can, for example, have two opposing bores into which the optical transmitter 96 and the optical receiver 98 are inserted in the assembled state.
  • the optical transmitter 96 can have a laser diode, for example.
  • the laser diode has the advantage that unwanted light reflections can be avoided.
  • the optical receiver 98 can comprise a photoresistor, for example.
  • the light intensity of the light beam of the optical transmitter 96, in particular the intensity of the laser beam of the laser diode, can be measured by means of the photoresistor.
  • the sensor device 38 also has an electronic circuit 100 which is arranged on the outside of the second housing half.
  • the closing element 44 is arranged in the opening 31 of the housing 30, the thread 50 being fitted or screwed into the mating thread 88.
  • the water inlet 34 opens into the housing 30 below the closing element 44.
  • the water outlet 36 is arranged laterally at a lower end of the sieve element 40.
  • the closing element 44 and the insert element 42 are connected to one another via the projection 48 and the receptacle 62.
  • the insert element 42 and the sieve element 40 are connected to one another via the noses 72 and the recesses 78.
  • the projection 64 is inserted into the receptacle 80 in order to rotatably mount the insert element 42 in the sieve element 40.
  • the insert element 42 thus connects the closing element 44 to the sieve element 40.
  • the insert element 42 is in particular inserted into the sieve element 40 and extends out of the open upper side of the sieve element 40 in the direction of the underside of the closing element 44.
  • the water inlet 34 is arranged in particular between the sieve element 40 and the closing element 44.
  • the magnetic sensor 90 is arranged between the sieve element 40 and the closing element 44.
  • the magnetic sensor 90 is arranged in particular at the level of the water inlet 34. In other words, the magnetic sensor is arranged upstream of the sieve element 40.
  • the optical transmitter 94 is arranged between the water inlet 34 and the water outlet 36. In particular, the optical transmitter 94 is arranged at the level of the sieve element 40.
  • the optical transmitter 96 and the optical receiver 98 are arranged on opposite sides of the filter device 32.
  • the optical transmitter 96 and the optical receivers 98 are arranged in particular on opposite sides of the sieve element 40.
  • the bores 70 and 76 of the sieve element 40 and of the insert element 42 are aligned with the optical transmitter 96 and the optical receiver 98, so that a beam path of a light pulse emitted by the optical transmitter 96 runs through the bores 70, 76 and the optical receiver 98 achieved.
  • the sensor device 38 is generally designed to detect a foreign body in the filter device 32.
  • the magnetic sensor 90 is designed to detect a metallic foreign body in front of the sieve element 40. If there is a metallic foreign body in the effective range of the magnetic sensor 90, it responds inductively to the metallic foreign body. This inductance is measured by the magnetic sensor. The sensor device 38 can be set up to determine whether the measured value of the inductance exceeds a predetermined threshold value.
  • the optical sensor 94 is designed to detect foreign bodies in the sieve element 40. If a foreign body, for example a hair, a fiber, or a lint is in the beam path 102 of the optical sensor 94, either the received light intensity is reduced or the light beam is completely blocked, which corresponds to an intensity of zero. This light intensity is measured via the photoresistor.
  • the sensor device 38 can be set up to determine whether the measured value of the light intensity falls below a predetermined threshold value.
  • the sensor device 38 is designed to generate an analog or digital sensor signal based on the detection of foreign bodies in the filter device.
  • the sensor signal contains, in particular, information about the degree of contamination of the filter device and / or about the detection of a metallic foreign body.
  • the information here can either be the measured value of the light intensity or the inductance or the result of determining whether a predetermined threshold value has been exceeded.
  • the control device 20 of the washing machine 10 can be set up to control the washing machine 10 taking into account the sensor signal.
  • the sensor signal directly contains the information that a certain degree of contamination of the filter device 32 has been reached or a metallic foreign body has been detected in the filter device 32 because the corresponding threshold value has been exceeded / not reached, this information can be used to control the washing machine 10 use.
  • the sensor signal only transmits the measured value of the respective sensor.
  • the control device 20 can be set up to determine the degree of contamination of the filter device on the basis of the information in the sensor signal, with a fill level of the sieve element being determined in particular. In particular, it can be determined whether the degree of contamination exceeds a certain threshold value. Taking this determination into account, the washing machine can be controlled accordingly.
  • the control device 20 can be set up to determine, on the basis of the sensor signal, whether a metallic foreign body is in the filter device 32. In particular, it can be determined whether the measured value exceeds a certain threshold value for the inductance, in particular as a result of which the control device 20 determines that a recognized foreign body is suitable for damaging the washing machine 10.
  • the control device 20 can then be set up to control the display device on the basis of the sensor signal.
  • control device can be designed to stop operation of the washing machine when a metallic foreign body has been detected or a certain degree of contamination of the filter device has been reached.
  • a user by providing a sensor device for monitoring the filter device, it is possible for a user to receive information through the arrangement of sensors via the machine that the filter device needs to be cleaned.
  • This information can e.g. B. optically in a display window of the display device by an illuminated LED, a lettering, etc. or by an acoustic signal before or after the end of a washing cycle to the user.
  • the degree of soiling can also be displayed on an analog display.
  • the washing machine is equipped with a connectivity module (e.g. WiFi)
  • information can also be transmitted to other receiving devices. If there is a direct connection to the manufacturer and / or its service provider, the information can also be passed on there, which then informs the user about a required cleaning process, e.g. via an app on the user's mobile device.
  • the filter device can be easily removed for cleaning or maintenance. This process is described in more detail below.
  • the degree of soiling of the filter is checked. If foreign bodies such as textile particles, fibers, lint, metal parts or other washing residue have accumulated in the filter, the system informs the user about the contamination of the filter on a display of the display device.
  • the user can then rotate the filter device by means of the handle element so that the thread of the closing element is unscrewed from the mating thread of the housing.
  • the filter device can then be removed as a whole from the housing for cleaning or maintenance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (11)

  1. Machine à laver (10) avec un dispositif de filtrage (18), la machine à laver (10) présentant un boîtier de machine à laver (12), un tambour (14) disposé dans le boîtier de machine à laver (12) et une porte (16), le boîtier de machine à laver (12) présentant un accès (28) au tambour (14), la porte (16) étant disposée au niveau de l'accès (28) du boîtier de machine à laver (12), et le dispositif de filtrage (18) étant disposé sur une face inférieure de l'accès (28), le dispositif de filtrage (18) présentant un boîtier (30) et un moyen de filtre (32) pour filtrer l'eau, le boîtier (30) présentant une entrée d'eau (34) et une sortie d'eau (36), l'entrée d'eau (34) étant disposée dans une direction verticale au-dessus de la sortie d'eau (36), le moyen de filtre (32) pour filtrer l'eau étant disposé dans le boîtier (30) au moins en partie entre l'entrée d'eau (34) et la sortie d'eau (36), le boîtier (30) étant étanche à l'eau au moins entre l'entrée d'eau (34) et la sortie d'eau (36), le moyen de filtre (32) présentant en outre un élément formant tamis (40), l'élément formant tamis (40) pour filtrer l'eau étant disposé entre l'entrée d'eau (34) et la sortie d'eau (36), le boîtier (30) présentant en outre une ouverture (31) à travers laquelle le moyen de filtre (32) peut être inséré dans le boîtier (30), le moyen de filtre (32) présentant en outre un élément de fermeture (44) permettant de fermer l'ouverture (31) du boîtier (30),
    caractérisée en ce que l'entrée d'eau (34) est disposée dans la direction verticale entre l'élément formant tamis (40) et l'élément de fermeture (44).
  2. Machine à laver (10) selon la revendication 1, caractérisée en ce que l'élément formant tamis (40) est réalisé sous forme de panier de tamis (74).
  3. Machine à laver (10) selon la revendication 1 ou 2, caractérisée en ce que le moyen de filtre (32) présente un élément d'insertion (42), l'élément d'insertion (42) pouvant être inséré dans l'élément formant tamis (40), l'élément d'insertion (40) présentant en particulier un labyrinthe de filtre (66) pour conduire l'écoulement d'eau de l'entrée d'eau (34) à la sortie d'eau (36).
  4. Machine à laver (10) selon l'une quelconque des revendications 1 à 3, caractérisée en ce qu'un élément d'étanchéité, en particulier une bague d'étanchéité (52), est disposé(e) entre l'élément de fermeture (44) et le boîtier (30).
  5. Machine à laver (10) selon l'une quelconque des revendications 1 à 4, caractérisée en ce que l'élément de fermeture (44) présente un filetage (50) et le boîtier (30) dans l'ouverture (31) présente un contre-filetage (88) réalisé de manière complémentaire à celui-ci, le filetage (50) tournant en particulier dans un sens de rotation autour d'un axe de rotation.
  6. Machine à laver (10) selon la revendication 5, caractérisée en ce que l'élément formant tamis (40), l'élément d'insertion (42) et l'élément de fermeture (44) peuvent être reliés les uns aux autres perpendiculairement au sens de rotation, l'élément formant tamis (40), l'élément d'insertion (42) et l'élément de fermeture (44) pouvant en particulier être accouplés les uns aux autres de manière verrouillée en rotation dans le sens de rotation.
  7. Machine à laver (10) selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le dispositif de filtrage (18) présente en outre un moyen capteur (38) qui est réalisé pour identifier des corps étrangers, en particulier des bouloches, des peluches, des microparticules et/ou du métal, et pour générer un signal de capteur analogique ou numérique sur la base de l'identification de corps étrangers dans le moyen de filtre.
  8. Machine à laver (10) selon la revendication 7, caractérisée en ce que la machine à laver (10) présente en outre un moyen de commande (20) qui est aménagé pour commander la machine à laver (10) en tenant compte du signal de capteur.
  9. Machine à laver (10) selon la revendication 8, caractérisée en ce que le moyen de commande (20) détermine un degré d'encrassement du moyen de filtre (32) sur la base du signal de capteur, un niveau de remplissage de l'élément formant tamis (40) étant déterminé en particulier.
  10. Machine à laver (10) selon la revendication 8 ou 9, caractérisée en ce que le moyen de commande (20) détermine sur la base du signal de capteur si le signal de capteur dépasse une première valeur seuil, de sorte que le moyen de commande (20) détermine en particulier qu'un corps étranger identifié est susceptible d'endommager la machine à laver (10).
  11. Machine à laver (10) selon l'une quelconque des revendications 8 à 10, caractérisée en ce que le moyen de commande (20) est réalisé pour arrêter le fonctionnement de la machine à laver (10) si le signal de capteur dépasse une première valeur seuil ou si un degré d'encrassement du moyen de filtre (32) dépasse une deuxième valeur seuil.
EP19211506.1A 2018-11-26 2019-11-26 Machine à laver avec un dispositif de filtrage Active EP3656908B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202018106723.0U DE202018106723U1 (de) 2018-11-26 2018-11-26 Filtervorrichtung für eine Waschmaschine und Waschmaschine

Publications (2)

Publication Number Publication Date
EP3656908A1 EP3656908A1 (fr) 2020-05-27
EP3656908B1 true EP3656908B1 (fr) 2022-01-05

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ID=68696346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19211506.1A Active EP3656908B1 (fr) 2018-11-26 2019-11-26 Machine à laver avec un dispositif de filtrage

Country Status (3)

Country Link
EP (1) EP3656908B1 (fr)
CN (1) CN212270465U (fr)
DE (2) DE202018106723U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3907321A1 (fr) * 2020-05-05 2021-11-10 emz-Hanauer GmbH & Co. KGaA Dispositif de piège à corps étranger pour un lave-linge
TR202007084A2 (tr) * 2020-05-06 2021-11-22 Vestel Beyaz Esya San Ve Tic A S Mikrofiber filtre tertibatı içeren yıkayıcı cihaz.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1751343B1 (fr) 2004-06-01 2010-04-07 LG Electronics Inc. Systeme d'evacuation pour machine a laver a tambour
ATE493539T1 (de) 2007-10-18 2011-01-15 Electrolux Home Prod Corp Trockenwaschmaschine mit waschflüssigkeit und kombinationsfilteranordnung
WO2013047783A1 (fr) * 2011-09-30 2013-04-04 株式会社 東芝 Dispositif de filtre pour machine à laver
DE102011086137B4 (de) * 2011-11-11 2019-08-22 BSH Hausgeräte GmbH Waschmaschine mit Filtrationsvorrichtung und Verfahren zu ihrem Betrieb
DE102014214621B4 (de) * 2014-07-25 2021-06-24 BSH Hausgeräte GmbH Haushaltsgerät mit einem Laugenbehälter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3656908A1 (fr) 2020-05-27
DE202018106723U1 (de) 2020-02-28
CN212270465U (zh) 2021-01-01
DE102019120539A1 (de) 2020-05-28

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