CN103429812A - Method of operating washing machine and washing machine - Google Patents
Method of operating washing machine and washing machine Download PDFInfo
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- CN103429812A CN103429812A CN2011800559833A CN201180055983A CN103429812A CN 103429812 A CN103429812 A CN 103429812A CN 2011800559833 A CN2011800559833 A CN 2011800559833A CN 201180055983 A CN201180055983 A CN 201180055983A CN 103429812 A CN103429812 A CN 103429812A
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- recirculation
- filter
- wash liquid
- rinsing maching
- cylinder
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/081—Safety arrangements for preventing water damage
- D06F39/082—Safety arrangements for preventing water damage detecting faulty draining operations, e.g. filter blockage, faulty pump
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- 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
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/42—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The present invention is directed to a washing machine (1), being operable in a recirculation washing mode, wherein a filter clogging state of a washing liquid filter (13) of a recirculation unit is monitored. If a critical filter clogging state is detected, the recirculation washing mode is deactivated and substituted by a non-recirculation washing mode.
Description
The application is for a kind of method of operated wash machine and is for a kind of rinsing maching.
In the rinsing maching technology, well-known is that wash liquid is carried out to recirculation in order to reduce the consumption of wash liquid (as water).Exercisable rinsing maching is for example known from EP 0 240 911 B1, EP 1 204 792 B1 and EP 0 807 707 in this way.
The recirculation of wash liquid is usually directed to have a recirculation unit and a circulating pump.This recirculation pump extracts wash liquid and via the sprinkling of the filling level top that is arranged in wash liquid or spraying system, this wash liquid is sent back among this cylinder from the bottom stage of the cylinder of rinsing maching.
In order to prevent that fine hair and other foreign matters from entering and damaging function or the operation of pump or spraying system, can provide in this pump upstream a recirculating filter.
If this type of recirculating filter is blocked, the detersive efficiency of rinsing maching can sharply descend so.
Due to these facts, therefore, the purpose of this invention is to provide improving one's methods of a kind of operated wash machine, be a kind of method that detersive efficiency reduces when recirculating filter stops up of avoiding specifically.In addition, will provide a kind of corresponding rinsing maching.
This purpose is realized by independent claims 1 and 8.Embodiments of the invention are derived from dependent claims.
According to independent claims 1, provide a kind of method that operates an exercisable rinsing maching under a recirculation washing mode.This rinsing maching can be a kind of traditional rinsing maching, that is, washing machine for clothes or wash and dry dual-purpose machine (washer dryer), these two is all front dress type and top dress type.
By the method according to this invention, monitoring or observe the plugged filter state of a wash liquid filter recirculation unit or a recirculation circuit at least every now and then or on some time interval.Advantageously, to the monitoring of wash liquid filter, can carry out continuously in the operating period of rinsing maching.
If in monitoring, the generation of a threshold filter blocked state or a threshold filter blocked state detected, so inactive recirculation washing mode and being substituted with non-recirculation washing mode.
A threshold filter blocked state for example, relates to following circumstance or state by (): wherein the blocked degree of wash liquid filter is to make further operation in recirculation mode will damage washing quality and/or (particularly under long-term behavior) pump of recirculation unit is caused to negative influence.
Stopping using and substituting of recirculation mode will mean that the execution of recirculation mode is prevented from, even and the user selected a recirculation mode, this recirculation mode also can be replaced or overwhelm by a non-recirculation mode.Information about the recirculation mode that is prevented from is available for a plurality of further operations.For example, information can be stored in a memory, and an inactive mark can be set in this memory.If the threshold filter blocked state has been removed and critical recirculating filter blocked state can't be determined again, can again start the recirculation washing mode so, for example, can delete inactive mark.
Non-recirculation mode can be for example traditional washing mode, and in this washing mode, clothing rolls in cleaning-drum, and wherein cylinder is filled with the wash liquid that reaches the non-recirculation liquid level liquid level of the liquid level in recirculation mode (for example, higher than).
As found out, the method can guarantee effectively to wash quality, or even in the situation that the wash liquid plugged filter in recirculation circuit is also like this.In addition, can greatly prevent badly damaged to the pump of rinsing maching, particularly recirculation unit.This has special importance, for example, if the pump worked also is used to and is adapted to, discharges wash liquid from rinsing maching in recirculation circuit.
In one embodiment, by non-recirculation mode substitute the recirculation washing mode relate to respect to this recirculation mode increase or the cylinder of rising rinsing maching in the filling level of wash liquid.
Increase filling level and may relate to the filling level parameter of the correspondence that rinsing maching is set, and/or add extra liquid (for example, water) to cylinder.Advantageously, in rinsing maching operating period existence, maybe will exist the liquid level of the wash liquid in making cylinder to raise.
Arranging or provide the filling level parameter (for example, in the memory of rinsing maching) of a correspondence, preferably together with inactive information, may be favourable because subsequent wash operate can be based on this information.This means if critical recirculating filter blocked state detected and selected again the recirculation washing, so preferably after the user confirms, this machine automatically carries out non-recirculation mode according to corresponding parameter, until critical recirculating filter blocked state is removed.
In addition, if this threshold filter blocked state is to determine under the idle NOR operation pattern of rinsing maching or state, it can be favourable arranging so and store corresponding parameter and make this type of information be available for the subsequent operation stage.This is implying that the plugged filter state even can not carry out any washing operation or in closing or monitored on a plurality of time intervals during the state of standby at rinsing maching.Yet, can determine that the time window of plugged filter state depends on the corresponding method for detection of the plugged filter state easily.
Generally speaking, during the recirculation washing stage of rinsing maching, the monitor filter blocked state may be enough to.Yet not only, as in recirculating filter but also the advantageous embodiment as the discharge opeing filter of wash liquid, the plugged filter state of monitoring in the non-recirculation stage may be suitable to filter therein.
With traditional washing mode only rolled, compare, when the recirculation washing mode is operated by the filling level reduced, the filling level that increases wash liquid in response to the threshold filter blocked state has ensured washing quality and efficiency.Filling level and out of use recirculation by reducing, reduced clothing and be exposed to the degree in wash liquid, and this obviously causes cleaning efficiency poor and may cause the clothing that rolls or the excessive wear of other article in the cylinder of rinsing maching.Therefore, if observe or the threshold filter blocked state that has caused the recirculation unit inactive detected, can automatically extra liquid (as water) be delivered among its cylinder so.
The plugged filter state can be by measuring or detecting one or more exemplary parameter and monitor.For example, following can be used as parameter: the wash liquid flow of wash liquid in recirculation circuit, and/or at the wash liquid pressure caused by the recirculation washing operation in cylinder or pressure change, particularly starting the recirculation washing after wash liquid pressure drop in a starting stage, and/or the detectable special characteristic of at least one optics of wash liquid filter.When using this type of parameter, if at least one in the wash liquid flow measured, the wash liquid pressure measured or pressure change and the special characteristic that is optically detected indicated critical blocked state, recirculation mode can be deactivated and be replaced so.
Advantageously, at least one in the wash liquid flow, wash liquid pressure or pressure change, the particularly pressure drop that measure changed with reference stream value or reference pressure value or reference pressure accordingly or voltage drop value to compare be possible.In such cases, if at least one generation in following situation, can determine so and have a critical blocked state: the wash liquid flow is little or in equaling the reference stream value, or wash liquid pressure is greater than or equal to the reference pressure value, or the wash liquid pressure change is less than or equal to reference pressure change value.
For improving the degree of accuracy, in an advantageous embodiment, if the threshold filter blocked state only in above-mentioned these parameters at certain, in time period of particularly extending or while in some continuous measurements, indicating a plugged filter state, can be determined existence.
In a further embodiment, possible, while in operating period of rinsing maching, stopping using recirculation mode, via valve, preferably via ball valve, close the bottom stage of the cylinder of rinsing maching is connected to the pipeline on recirculation unit or recirculation circuit.Like this, can prevent that wash liquid from entering recirculation circuit.If while for the heating element heater of heated scrub liquid, being arranged at this valve upstream, can obtain so the cooperative effect of using this kind of valve.In this case, the wash liquid still existed in inactive recirculation unit or loop in this valve downstream will no longer be heated, and therefore can save energy.
In an advantageous embodiment, preferably by visual and can listen at least one in symbol to make the user can obtain at least one in the generation event of the inactive event of recirculation mode and a critical blocked state.For example, the generation inactive or the threshold filter blocked state of recirculation unit can visually be indicated on the user interface of rinsing maching.Advantageously, if the blocked state of filter approaches critical blocked state, can also provide warning or other signals to the user so.Particularly, by this type of embodiment, consideration is suitable for detecting and/or other parameters of predicted critical blocked state are possible.
Can find out from the above description, it is a kind of for the improving one's methods of operated wash machine that the method proposed provides, and specifically, it is effective that this method is avoided aspect the detersive efficiency reduction when recirculating filter stops up.
According to independent claims 8, provide a kind of with the exercisable a kind of rinsing maching of recirculation washing mode.This rinsing maching can be for example for a kind of washing machine for clothes or wash and dry dual-purpose machine, and with mentioned in advance before similar.
This rinsing maching advantageously comprises: a cylinder; A recirculation unit, this recirculation unit is for carrying out recirculation at a recirculation circuit that is equipped with this cylinder to wash liquid; And at least one recycled wash liquor filter.This rinsing maching advantageously further comprises an electronic control unit, and this electronic control unit is adapted to according to proposed method and any embodiment thereof and operates this rinsing maching.
Advantage and advantageous effects about this rinsing maching, please refer to above description.
In order to implement proposed method or embodiment, this recirculation unit can comprise at least one pump, and this at least one pump is the wash liquid at a recirculation circuit for pumping.This wash liquid filter can advantageously be integrated in this recirculation circuit, and is arranged at the upstream of this pump.This wash liquid filter can be adapted to detention the end of a thread, loose fiber, dust particle, impurity and foreign matter and enter this recirculation pump.
In order to monitor a plurality of parameters that are suitable for detecting the threshold filter blocked state, rinsing maching can advantageously comprise at least one in following: a flowmeter, and this flowmeter is for measuring the wash liquid flow at recirculation circuit; A pressure sensor, a pressure switch for example, this pressure sensor is for measuring wash liquid pressure or the pressure change at cylinder; And an optical pickocff, this optical pickocff is at least one special characteristic of optical detection wash liquid filter.Corresponding sensor can advantageously be connected on this electronic control unit, its mode is that measured wash liquid flow, the wash liquid pressure measured or pressure change or the special characteristic that detects are available for correspondingly operated wash machine, that is, if the threshold filter blocked state occurs or occupies while dominating to be available for the recirculation unit of stopping using.
To mention, if determined that critical blocked state no longer exists or do not existed, so advantageously, can this start the recirculation washing mode again.
In one embodiment, in the pipeline that the opening in the bottom stage that will be provided at cylinder is connected with the input side of pump, can provide a valve, ball valve preferably, this valve is arranged to and is adapted to and opens and closes this pipeline.Same with reference to above content of the discussions.
Rinsing maching can advantageously comprise user's message and start or information unit.This user's message sends or information unit can be adapted to visual and can listen at least one in mode to indicate at least one in the generation event of the inactive event of recirculation mode and critical blocked state to the user.Make us paying special attention to, the accurate information about plugged filter is provided, preferably formerly notification filter is stopped up.Accurate information can be advantageously by observing one or more parameters and reference parameter value or the reference parameter corresponding with at least one compares to obtain by them.
In a further embodiment, rinsing maching can advantageously comprise a monolithic filter unit, this monolithic filter unit has a recirculating filter section and discharge opeing filter segment, and wherein at least one recycled wash liquor filter is accommodated among this recirculating filter section.In this configuration, many loose fibers or fine hair and analog can the cylinder from rinsing maching, discharge wash liquid during from recycled wash liquor body filter, be rinsed.Threshold filter blocked state that probably notified in some instances, or that in fact occurred can remove in this way.This makes rinsing maching to be operated with recirculation mode on the time period extended.
At one further in embodiment, pump can be as recirculation pump and positive displacement pump and exercisable; And valve preferably triple valve can be provided for by pump or with recirculation circuit or discharge opeing loop and is connected.In this case, some in the parameter of monitoring, for example, as the flow of the wash liquid through this pump, also can be for identification or predicted critical discharge opeing plugged filter state.
Rinsing maching can comprise liquid inlet, this liquid inlet is adapted to be delivered to cylinder by extra or fresh liquid and cooperates with electronic control unit, make like this in the situation that the recirculation washing mode is inactive because of the critical blocked state of recycled wash liquor filter, extra or fresh liquid is sent among this cylinder.In this way, even stop using in the recirculation unit, also can realize very outstanding clean result.
In connection with accompanying drawing, exemplary embodiment of the present invention is described, wherein
Fig. 1 illustrates the indicative icon according to the rinsing maching under the first mode of operation of the present invention;
Fig. 2 illustrates rinsing maching shown in the Fig. 1 under the second mode of operation;
Fig. 3 illustrates the time course of operating parameter of the rinsing maching of Fig. 1 and Fig. 2; And
Fig. 4 illustrates the filter of the rinsing maching of Fig. 1 and Fig. 2.
Below the description of embodiment be should not be construed as to the restriction to scope of the present invention.Specifically, the feature jointly illustrated in any accompanying drawing can be implemented individually or in any other combination, as above further discussion.
In whole accompanying drawing, except as otherwise noted, otherwise similar components is meaned by similar reference symbol.These accompanying drawings can not drawn veritably in proportion, and the engineer's scale of different figure may be different.
Fig. 1 illustrates the indicative icon of the rinsing maching 1 under the first mode of operation.
Rinsing maching advantageously comprises a cylinder 2 for washing machine for clothes (but also can be to wash, drying dual-purpose machine) in this case, and in this cylinder, a cylinder 3 is rotatably arranged, so that the article (as clothing 4) that are placed in this cylinder 3 by rolling carry out washing operation.
Rinsing maching 1 further comprises an entrance 5, and this entrance is for preferably delivering to water among cylinder 2 via being adapted to the extractor 6 that holds washing agent or cleanser.By via extractor 6, sending water, the washing agent be contained in wherein just pours among cylinder 2.Entrance 5 comprises an actuatable inlet valve (not shown), and the wash liquid liquid level that this inlet valve (for example) pre-sets by a connected electronic controller 7 bases is operationally delivered to water among cylinder 2.
Rinsing maching 1 further comprises a discharge opeing unit, and this discharge opeing unit is for discharging wash liquid from cylinder 2.This discharge opeing unit comprises a discharge opeing filter cell 8 that is arranged at positive displacement pump 9 upstreams.An entrance side of positive displacement pump 9 is connected on a main pipeline 10 via discharge opeing filter cell 8, and then is connected on the bottom opening 11 of cylinder 2.An outlet of positive displacement pump 9 is connected on a Drainage pipe 12, and this Drainage pipe is provided for wash liquid is expelled to externally drained device from cylinder 2.
Rinsing maching 1 further comprises for the recirculation unit to wash liquid recirculation.The recirculation unit comprises a recirculating filter element 13, and this recirculating filter element is arranged at the upstream of a recirculation pump 14.An entrance of recirculation pump 14 is connected on main pipeline 10 via recirculating filter element 13.An outlet side of recirculation pump 14 is connected on a recirculation conduit 15.A far-end of recirculation conduit 15 is connected on an opening, the open top advantageously provided in cylinder 2 in this case, and the mode that this open top is provided in this cylinder is that wash liquid can be sprayed or be ejected on the clothing existed in cylinder 2.A jet of the wash liquid of recirculation is schematically illustrated in Fig. 1, and is described by reference symbol 16.
Discharge opeing filter cell 8 and recirculating filter element 13 preferably are housed inside in a filter unit, in this filter unit, this discharge opeing filter cell 8 is arranged in a discharge opeing section, and recirculating filter element 13 is arranged among a recirculation section.In a further embodiment (not shown), fully independently (recirculating filter element 13 and discharge opeing filter cell 8 can be two, distinct) parts, and these parts can be arranged at fully independently among (that is, distinct) filter unit or seat.
Between bottom opening 11 and filter unit, ball valve 17 can advantageously be provided for and be adapted to and allows and block main pipeline 10.In a further embodiment (not shown), ball valve 17 can for example, be replaced by a kind of different types of valve (, butterfly valve, gate valve, electronic control valve etc.); More generally, can use the valve that is adapted to any kind of blocking main pipeline 10.The branch be connected on main pipeline 10 in ball valve 17 upstreams preferably includes a barostat 18, that is, and and a pressure sensor.Barostat 18 is adapted and is connected on main pipeline 10, makes like this pressure or the pressure change that can determine wash liquid.
The operation of rinsing maching 1 is now described in more detail.Fig. 1 illustrates the rinsing maching 1 under recirculation mode, and wherein wash liquid is taken out by the bottom stage from cylinder 2 and sprays or be ejected on the clothing 4 be contained in cylinder 3.Passing the stream of the wash liquid of recirculation unit is pointed out by a plurality of small arrows.As found out, wash liquid preferably but optionally with a kind of continuation mode, by cylinder 2, circulated.
With non-recirculation washing (as traditional rolling washing), compare, the advantage that the wash liquid circulation has is to carry out a washing to plan the needed water yield and can be greatly reduced.The liquid level of recycled wash liquor, that is, the liquid level of the wash liquid in cylinder 2 is pointed out by reference symbol 19 in Fig. 1.As found out, due to the amount minimizing of wash liquid, clothing 4 all is not immersed among wash liquid.Yet, wash liquid is sprayed onto on clothing 4 this has been made to compensation.Therefore, even also can obtain very outstanding clean result in the situation that the amount of wash liquid reduces.
Specifically, when clothing 4 passes through in rotary moving a rolling of cylinder 3, fine hair, loose fiber, dust and other impurity particles (typically from clothing) will be present among this wash liquid.Clearly, the recirculating filter element 13 that is intended to protect recirculation pump 14 to avoid fine hair, impurity particle etc. is easy to be stopped up by corresponding impurity particle and analog.
The Partial Blocking of recirculating filter element 13 will cause recirculating mass to reduce, thus infringement washing quality and efficiency.For fear of detersive efficiency, reduce, rinsing maching 1 can be monitored the blocked state of recirculating filter element 13, and specifically, in the situation that critical blocked state occurs not use or this recirculation washing unit of stopping using.
When not using or stopping using this recirculation mode, rinsing maching 1 is arranged or is further operated with non-a kind of recirculation mode (that is, only being rolled).
Preferably, along with switch to non-recirculation mode from recirculation mode, the inlet valve of entrance 5 is opened and fresh water is admitted in cylinder 2, until obtain predetermined non-recycled wash liquor liquid level 20(referring to Fig. 2).
Figure 2 illustrates and sending fresh (that is, extra) water so that the situation after obtaining this non-recycled wash liquor liquid level 20.As therefrom found out, and be specifically from Fig. 1 and Fig. 2 relatively can find out, the enlarged that is contained in the clothing 4 in cylinder 3 is immersed in wash liquid, this washs for non-recirculation is general.Therefore, with the clean result in recycled wash liquor liquid level 19 reduction situations, compare, washing quality and efficiency strengthen greatly.
The critical blocked state that detects recirculating filter element 13 can (for example) following enforcement.
The pressure of wash liquid is measured by barostat 18 continuously or at least on some time interval.Pressure can for example be measured by the liquid level that is contained in the wash liquid in cylinder 2.
Be clear that, if recirculation pump 14 starts in recirculation circuit wash liquid recirculation, the liquid level of wash liquid so, and the pressure of therefore being measured by barostat 18 will reduce.If recirculating filter element 13 does not stop up, the pressure caused by startup or the operation of recirculation pump 14 so reduces or reduces (that is, pressure drop) maximum, that is, the pressure in cylinder 2 is minimum.If pressure remains on a threshold value or pressure drop is less than the threshold value of a correspondence, arrive a critical blocked state.So, advantageously be connected on barostat 18 and the electronic controller 7 of monitor force or pressure drop does not use this recirculation washing mode.Then, other operating parameters (as the wash liquid liquid level) can advantageously be adapted to the requirement that meets non-recirculation washing mode.For the liquid level of adaptive wash liquid, can start this inlet valve in order to send extra water.
For example, except other according to the type of the rinsing maching used, if can observe the pressure drop of 25mm in the not blocked state of recirculating filter element 13, so can be for identifying a critical blocked state corresponding to the pressure drop of the 10-20mm of 10-20kg/m2.In this connection, Fig. 3 illustrates two charts of wash liquid pressure to the time.On an initial time interval, the pressure of this wash liquid has a value p1, and this value is corresponding to an idle or non-recirculation washing mode of rinsing maching 1.On certain time point tR, recirculation unit and be that recirculation pump 14 is activated specifically.The startup of recirculation pump 14 causes a pressure drop of the wash liquid pressure in cylinder 2.In the first pressure drop chart (numbering 24 in Fig. 3) of the not blocked state corresponding to recirculating filter element 13, as the double-head arrow of Fig. 3, pointing out, for example, is from 70mm to 45mm, from the pressure drop Δ p ' () of p1 to p2,25mm, corresponding to unplugged recirculating filter state.
Along with the obstruction increase of recirculating filter element 13, the stream of wash liquid in this recirculation circuit is constantly blocked, and the wash liquid pressure drop constantly is reduced thus.In Fig. 3, show the second pressure drop chart (numbering 25 in Fig. 3) corresponding to a critical blocked state.Due to plugged filter, that observe is the less pressure drop Δ p from p1 to p3 ".
In this case, observe or monitor this wash liquid pressure by electronic controller 7 via the force value of barostat 18.If pressure drop Δ p(is for example) lower than corresponding critical pressure depreciation, for example as lower than 10 to 20mm, can suppose so a threshold filter blocked state.Therefore, the recirculation operation pattern of rinsing maching 1 can be deactivated or substitute, and as above, further describes.
Advantageously, other parameters of rinsing maching 1, the parameter of filter for example, can be for identifying the recirculating filter state of obstruction.These parameters can for example, for () optical characteristics etc. of the flow in recirculation circuit or flow velocity or other recirculating filter parameters, recirculating filter element 13.Preferably, select corresponding parameter, it is possible making like this automatic inspection.
In Fig. 4, show a filter 21 implementing a recirculating filter element 13.Recirculating filter element 13 and discharge opeing filter cell 8 preferably are housed inside in a public filter housing 22; In an advantageous embodiment, recirculating filter element 13 and discharge opeing filter cell 8 can be by an one-piece construction (that is, they can obtain by single parts) form manufactures.These corresponding filter cells are arranged in this shell, make like this wash liquid pass through recirculating filter element 13 under the recirculation operation pattern, and pass through discharge opeing filter cell 8 under non-recirculation operation pattern.
As indicated in Fig. 4, the filter mesh of recirculating filter element 13 is preferably more compact to a certain extent than discharge opeing filter cell 8.Because two filter cells 8,13 all are arranged and fit in this fact in a public shell, or the wash liquid of recirculation mode or the non-recirculation mode filter 21 of can flowing through.Wash liquid will be filtered by filter 21, and impurity particle, dust, fine hair or other the end of a thread will be by the recirculating filter element 13 under recirculation mode and discharge opeing filter cell 8 detentions under the discharge opeing pattern.When corresponding pump 9,14 needs, two filter cells 8,13 shown in Fig. 4 are adapted to and maybe can be adapted to from this wash liquid removal of impurity particle effectively.
The implementation of Fig. 4 (, recirculating filter element 13 and discharge opeing filter cell 8 are arranged in a public shell) advantage be, the wash liquid of discharging via discharge opeing filter cell 8 can advantageously be taken away loose fiber, fine hair and other impurity be attached on recirculating filter element 13.At this, should consider, recirculating filter element 13 is relatively meticulous, and discharge opeing filter cell 8 is relatively coarse.Therefore, fiber, fine hair and the analog by 13 detentions of recirculating filter element can probably pass discharge opeing filter cell 8.Therefore, discharge wash liquid from cylinder 2 and can reduce the recirculating filter obstruction.
Yet, be clear that and also can use two filters that separate fully and filter housing.
In a word, can find out, for one or more methods that propose of operated wash machine 1, produce improved operation, particularly produced strengthen and more efficient washing.
Claims (15)
1. operate the method for an exercisable rinsing maching (1) under the recirculation washing mode, wherein monitored a plugged filter state of a wash liquid filter (13) of a recirculation unit, it is characterized in that, if a threshold filter blocked state detected, so just stop using this recirculation washing mode and being substituted with a non-recirculation washing mode.
2. method according to claim 1, wherein, substitute this recirculation washing mode by this non-recirculation mode and relate to a filling level (19,20) that is increased in the wash liquid in the cylinder (2) of this rinsing maching (1) with respect to this recirculation mode.
3. method according to claim 2, wherein, increase during this filling level (19,20) relates to extra liquid is delivered to this cylinder (2) in the operating period of this rinsing maching (1).
4. according at least one described method in claims 1 to 3, wherein, monitor this plugged filter state and relate at least one in following operation: the wash liquid flow of measuring the wash liquid in a recirculation circuit, and/or measure wash liquid pressure and/or the pressure change caused by the recirculation washing operation in this cylinder (2), and/or at least one special characteristic of this wash liquid filter (13) of optical detection, if and the wash liquid flow wherein measured, and/or the wash liquid pressure and/or the pressure change that measure, and/or at least one in the special characteristic be optically detected indicated a threshold filter blocked state, so just stop using and substitute this recirculation mode.
5. method according to claim 4, wherein, the wash liquid flow that this measures, and/or in wash liquid pressure and/or pressure change at least one accordingly with a reference stream value, and/or reference pressure value and/or reference pressure change value are compared, when and if at least one in following situation occurs, so just determine and have a critical blocked state: this wash liquid flow is less than or equal to this reference stream value, and/or this wash liquid pressure is greater than or equal to this reference pressure value, and/or this wash liquid pressure change is less than or equal to this reference pressure change value.
6. according at least one described method in claim 1 to 5, wherein, when the operating period at this rinsing maching (1) is stopped using this recirculation mode, via a valve, close a bottom stage of the cylinder of this rinsing maching (1) (2) is connected to a pipeline on a recirculation unit.
7. according at least one described method in claim 1 to 6, wherein, the user can obtain at least one in the generation event of the inactive event of this recirculation mode and threshold filter blocked state.
8. exercisable rinsing maching (1) under a recirculation washing mode, this rinsing maching comprises: a cylinder (2); A recirculation unit, this recirculation unit is used at one, being equipped with the wash liquid of the recirculation circuit of this cylinder (2) to carry out recirculation; And at least one recycled wash liquor filter (13), and further comprise that an electronic control unit (7), this electronic control unit are adapted to according at least one item in claim 1 to 7 and operate this rinsing maching (1).
9. rinsing maching according to claim 8 (1), this recirculation unit comprises a pump (14), this pump is the wash liquid at a recirculation circuit for pumping, wherein at least one recycled wash liquor filter (13) is included in this recirculation circuit and is arranged at the upstream of this pump (14), and this recycled wash liquor filter (13) is adapted to detention the end of a thread, loose fiber, dust granule, impurity and foreign matter and enters this pump (14).
10. at least one described rinsing maching (1) according to Claim 8 with 9 further comprises at least one in following: a flowmeter, and this flowmeter is for measuring the wash liquid flow at this recirculation circuit; And/or a pressure sensor, this pressure sensor is for measuring wash liquid pressure or the pressure change at this cylinder (2); An and/or optical pickocff, this optical pickocff is at least one special characteristic of this recycled wash liquor filter (13) of optical detection, and above item is connected to accordingly mode on this electronic control unit (7) and correspondingly is available for operating this rinsing maching (1) for this wash liquid flow measured and/or the wash liquid pressure measured and/or pressure change and/or the special characteristic that is optically detected.
11. at least one described rinsing maching (1) according to Claim 8 to 10, wherein, in the pipeline (10) that an opening (11) in being provided at a bottom stage of this cylinder (2) is connected with an input side of this pump (14), a valve is provided, and this valve is arranged and is adapted to opening and closing this pipeline (10).
12. at least one described rinsing maching (1) according to Claim 8 to 11, further comprise that user's message sends or information unit, this user's message transmission or information unit are adapted to the user visually and/or audibly indicates the inactive event of this recirculation mode and/or the generation event of a critical blocked state.
13. at least one described rinsing maching (1) according to Claim 8 to 12, comprise a monolithic filter unit (21,22), this monolithic filter unit has a recirculating filter section and discharge opeing filter segment, wherein, at least described recycled wash liquor filter (13) is accommodated among this recirculating filter section.
14. at least one described rinsing maching (1) according to Claim 8 to 13, wherein, this pump can be used as a recirculation pump (14) and can be used as a positive displacement pump (9) and operates, and one of them valve, preferably triple valve be provided for by this pump be connected to this recirculation circuit (15) or a discharge opeing loop (12) on.
15. at least one described rinsing maching (1) according to Claim 8 to 14, further comprise a liquid inlet (5), this liquid inlet is adapted to be delivered to extra or fresh liquid in this cylinder (2), and cooperate with this electronic control unit (7), make like this in the situation that, because of a critical blocked state of this recycled wash liquor filter (13) this recirculation washing mode of having stopped using, extra or fresh liquid is sent among this cylinder (2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10192052.8 | 2010-11-22 | ||
| EP10192052.8A EP2455533B1 (en) | 2010-11-22 | 2010-11-22 | Method of operating a washing machine and washing machine |
| PCT/EP2011/069141 WO2012069288A1 (en) | 2010-11-22 | 2011-10-31 | Method of operating a washing machine and washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103429812A true CN103429812A (en) | 2013-12-04 |
| CN103429812B CN103429812B (en) | 2016-05-18 |
Family
ID=44072492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180055983.3A Active CN103429812B (en) | 2010-11-22 | 2011-10-31 | The method of operated wash machine and rinsing maching |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20130312201A1 (en) |
| EP (1) | EP2455533B1 (en) |
| CN (1) | CN103429812B (en) |
| AU (1) | AU2011334064A1 (en) |
| BR (1) | BR112013012559A2 (en) |
| RU (1) | RU2013127569A (en) |
| WO (1) | WO2012069288A1 (en) |
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| CN111032949A (en) * | 2017-08-31 | 2020-04-17 | 净卫士公司 | Method for washing machine and washing machine |
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| CN112444328A (en) * | 2019-08-14 | 2021-03-05 | 青岛海尔洗衣机有限公司 | Washing machine filter detection device and detection method |
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| WO2021218557A1 (en) * | 2020-04-26 | 2021-11-04 | 青岛海尔滚筒洗衣机有限公司 | Control method for front-loading washing machine |
| CN113774617A (en) * | 2020-06-09 | 2021-12-10 | 青岛海尔洗衣机有限公司 | Washing machine reminding method and device, washing machine and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2455533B1 (en) | 2014-06-18 |
| US20130312201A1 (en) | 2013-11-28 |
| AU2011334064A1 (en) | 2013-04-11 |
| WO2012069288A1 (en) | 2012-05-31 |
| RU2013127569A (en) | 2014-12-27 |
| EP2455533A1 (en) | 2012-05-23 |
| BR112013012559A2 (en) | 2016-08-30 |
| CN103429812B (en) | 2016-05-18 |
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