CN101280501B - Controlling method of washing machine - Google Patents

Controlling method of washing machine Download PDF

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Publication number
CN101280501B
CN101280501B CN2008100087705A CN200810008770A CN101280501B CN 101280501 B CN101280501 B CN 101280501B CN 2008100087705 A CN2008100087705 A CN 2008100087705A CN 200810008770 A CN200810008770 A CN 200810008770A CN 101280501 B CN101280501 B CN 101280501B
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China
Prior art keywords
electrode
rinse cycle
washing machine
control method
cycle
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Expired - Fee Related
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CN2008100087705A
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Chinese (zh)
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CN101280501A (en
Inventor
金兑恩
梁惠顺
梁炳烈
林正洙
金慧伶
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Publication of CN101280501A publication Critical patent/CN101280501A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14Arrangements for detecting or measuring specific parameters
    • D06F34/22Condition of the washing liquid, e.g. turbidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • D06F33/30Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/38Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/20Washing liquid condition, e.g. turbidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/20Washing liquid condition, e.g. turbidity
    • D06F2103/22Content of detergent or additives
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/70Number of operational cycles
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/52Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/56Remaining operation time; Remaining operational cycles

Abstract

A control method of a washing machine reliably guarantees a rinsing performance, and a minimized number of rinsing cycles is performed. The method includes: circulating detergent water collected in a tub through a circulation passage during a washing cycle; supplying a voltage to a pair of electrodes made of different materials and installed on the circulation passage to determine whether a quantity of detergent contained in the detergent water is excessive; circulating rinsing water collected in the tub through the circulation passage during a rinsing cycle; detecting a magnitude (I2) of a current flowing through the rinsing water by supplying the voltage to the pair of electrodes; and comparing the detected magnitude (I2) of the current with a reference value (Ir), and finishing the rinsing cycle when the detected magnitude (I2) is equal to or less than the reference value (Ir).

Description

The control method of washing machine
Technical field
The present invention relates to a kind of control method of washing machine, more specifically, the present invention relates to a kind of rinsing performance and can be suitably many number of times of can guaranteeing reliably and carry out the control method of rinse cycle washing machine.
Background technology
If the user imports suitable washing procedure, then washing machine is according to the processing washing laundry item of predetermined washing procedure through washing, rinsing and dehydration.When design during washing machine, the deviser utilizes each washing procedure to confirm and set the number of times of rinsing usually, and carries out the rinsing of laundry item through the rinsing time of setting.
Yet,,, and excessively use power and water continually if laundry item rinsing predetermined times always can not guarantee the rinsing performance of washing machine reliably even quantity, kind and the dissolubility of the washing agent that is added by the user are different.
In order to overcome the above problems; The Korea S not patented claim open file 2003-44491 of substantive examination discloses a kind of automatic rinse controlling method that utilizes optical sensor to measure the washing machine of rinsing water turbidity; When the turbidity of measuring during greater than predetermined degree; Carry out extra rinse cycle, and, finish rinse cycle when the turbidity of measuring during less than predetermined degree.
Yet; In disclosed control method; When exterior materials was put between Optical Transmit Unit and the light receiving unit of optical sensor, the probability that breaks down was very big, thereby although turbidity is lower than predetermined degree; But the rinsing water turbidity of measuring still demonstrates greater than predetermined degree, and continues to carry out rinse cycle.
At this moment, the user suspects the rinsing performance of washing machine, and owing to the additional times of setting the rinsing pre-determined number has been set too much rinsing number of times.Yet,,, during the rinse cycle that also will carry out increasing, will waste water and electric energy, and wash the process of laundry item for a long time by the user even needn't carry out the rinsing number of times that the user sets for rinsing laundry item effectively.Therefore, the user is very inconvenient.
Summary of the invention
The present invention studies the problems referred to above.One aspect of the present invention provides a kind of control method of washing machine, and this method guarantees the reliable rinsing performance of washing machine, and prevents to consume unnecessary energy.
According to an aspect; Embodiments of the invention provide a kind of control method of measuring the rinsing water turbidity and judging the washing machine whether rinse cycle finishes; Said method comprises: a kind of control method of measuring the rinsing water turbidity and judging the washing machine that whether finishes rinse cycle, and said method comprises: make washings cycle through circulation passage; Through voltage being supplied to the electrode that is installed on the circulation passage, measure the size of the electric current that flows through washings; And size (I2) that relatively detects and reference value (Ir), and judge whether finish rinse cycle according to result relatively.
Usually, when the size of current (I2) that detects is equal to or less than reference value (Ir), finish rinse cycle, and when the size of current (I2) of detection during, increase and carry out another time rinse cycle greater than reference value (Ir).
In one embodiment, the control method of washing machine also comprises: during the wash cycle of before rinse cycle, carrying out, make detergent water cycle through circulation passage; When voltage supplies to electrode, detect the size of the electric current (I1) that in detergent water, flows; And size (I1) and reference value (Iw) through relatively detecting, judge whether the detergent amount of user's adding is too much.
In this embodiment, when the size (I1) that detects is equal to or greater than reference value (Iw), on display screen, show the information that has increased excessive washing agent.In addition, when the size (I1) that detects is equal to or greater than reference value (Iw), increase the number of times of rinse cycle, and on display screen, show the wash time that prolongs.Therefore, when the size of detection (I1) is equal to or greater than reference value (Iw), reset the amount of the washings of when initial rinse cycle, supplying with.
Electrode is by the different materials manufacturing, and said control method further is included in before rinsing finishes, and changes the polarity of the voltage that supplies to electrode in the given time.
An electrode comprises the silver electrode of argentiferous, and another electrode comprises the titanium electrode of titaniferous, and when voltage supplied to electrode, the titanium electrode was as positive electrode.
In addition, the control method of washing machine also comprises: the number of times of counting rinse cycle; And based on the comparative result end rinse cycle of the maximum number of rinse cycle number of times and the rinse cycle number of times of counting.
According to a further aspect in the invention, in one embodiment, the present invention provides a kind of control method of washing machine, and said method comprises: during wash cycle, make the detergent water that accumulates in the bucket cycle through circulation passage; Voltage supplied to by different materials make and be installed on the pair of electrodes on the circulation passage, whether excessive with the detergent amount that judgement is included in the detergent water; During rinse cycle, make the washings that accumulate in the bucket cycle through circulation passage; Through voltage being supplied on the said pair of electrodes, detect the magnitude of current (I2) that flows through washings; And the size (I2) and the reference value (Ir) of the electric current that relatively detects, and, the size (I2) that detects finishes rinse cycle when being equal to or less than reference value (Ir).
A silver electrode that comprises argentiferous in the said pair of electrodes, and another electrode comprises the titanium electrode of titaniferous.
When voltage supplied to said pair of electrodes, the titanium electrode was a positive electrode.
Before rinsing finishes, when using silver electrode in the given time as positive electrode, service voltage.
When in determining detergent water, containing excessive washing agent, the information that in detergent water, contains excessive washing agent is presented on the display screen, and resets the amount of the washings of when initial rinse cycle, supplying with.
Others of the present invention and/or advantage will be in following explanation part set forth, and will be from said explanation partly clear appearing, or can in to practice of the present invention, learn.
Description of drawings
Will be from the explanation of following embodiment, make these and/or others and the advantage of exemplary embodiments of the present invention become more obvious and be easier to understand with reference to accompanying drawing, wherein:
Fig. 1 is that diagram illustrates the skeleton view of utilization according to the washing machine of the control method of the embodiment of the invention;
Fig. 2 is the view of the washing machine among the Fig. 1 shown in the part diagram;
Fig. 3 is that diagram illustrates the calcspar according to the control of the washing machine of the embodiment of the invention;
Fig. 4 A and Fig. 4 B are that diagram illustrates the process flow diagram according to the control method of the washing machine of the embodiment of the invention.
Embodiment
To at length explain that now instance of the present invention explains that in the accompanying drawings wherein identical reference symbol is represented components identical in full to exemplary embodiments of the present invention.Below will be through illustrating and describing embodiment with explanation the present invention.
Fig. 1 is the skeleton view of the utilization shown in the diagram according to the washing machine of the control method of the embodiment of the invention, and Fig. 2 is the view of the washing machine among the Fig. 1 shown in the part diagram, and Fig. 3 is the calcspar according to the control of the washing machine of the embodiment of the invention shown in the diagram.
To shown in Figure 3, the washing machine of using the control method according to the present invention comprises and is installed on the fuselage 10 with the cylinder type bucket 11 that holds water (washings or washings) and is installed in the bucket 11 the cylindrical shape swing roller 12 in order to rotation like Fig. 1.At this, term " washings " and " washings " are illustrated in the water that supplies to bucket 11 during wash cycle and the rinse cycle.
Door 13 is installed in the front side of fuselage 10 to open and close opening, put into and take out laundry item through this opening, and installation and control panel (not shown) is with the operation of index drum type washing machine.The control panel (not shown) typically is provided with different buttons and rotating driver plate, makes the user can control the operation of washing machine, and is provided with the display screen 14 (referring to Fig. 3) of the mode of operation that shows washing machine.
Carry the washing agent feeder 20 of washing agent to be installed in the upside of bucket 11, and comprise the downside that is installed in bucket 11 from the drainage arrangement of the drainpipe 41 of bucket 11 drainage waters and draining valve 42 with the water supply installation 30 of supplying with water (washings or washings).In addition, the driving motor 15 (referring to Fig. 3, in Fig. 1 and Fig. 2, showing) that swing roller 12 is rotated is installed in the back outside of bucket 11, in order to carry out washing operation, rinse operation and dehydrating operations.
Washing agent feeder 20 has the inner space that is divided into a plurality of spaces, and is installed in the front side of fuselage 10, makes the user to add washing agent easily and is flushed in each space.The purificant container that is comprised the subsequent use washing detergent container that holds washing agent, holds the main washing detergent container of the washing agent that is used for main washing and be contained in the purificant that rinsing uses by the space divided.
Water supply installation 30 is connected to external water and supplies with flexible pipe, and comprises water supply valve 31 in order to the supply of control water, water supply valve 31 is connected to the connecting pipe 32 of washing agent feeder 20 and guiding water gets into buckets 11 through washing agent feeder 20 feed pipe 33.This structure purpose is that control supplies to the water that bucket 11 also passes through washing agent feeder 20, thereby the washing agent in the washing agent feeder 20 can be transported in the bucket 11 with water.
Utilize the washing machine of control method of the present invention to comprise the circulating device 50 of the water in the circulation bucket 11.Circulating device 50 comprises that the end with circulating device 50 is connected to the downside of bucket 11; And the other end be connected to draining valve 42 first circulation passage 51, have an end and be connected to draining valve 42, and the other end be connected to bucket 11 upside second circulation passage 52 and be installed in the ebullator 53 in second circulation passage 52.
The draining valve 42 that is connected to drainpipe 41, first circulation passage 51 and second circulation passage 52 is realized through T-valve that can ALT-CH alternate channel.When first circulation passage 51 was communicated with drainpipe 41 through draining valve 42, water was discharged from bucket 11.When ebullator 52 is driven into wherein first circulation passage 51 through draining valve 42 during with state that second circulation passage 52 is communicated with, the water that accumulates in the downside of bucket 11 follows ring passage 51 and circulates with 52, and passes through nozzle 54 injections of the upside of bucket 11.
In addition, the electrode assembly 60 that utilizes the washing machine of control method of the present invention to comprise to have electrode assembly case 61, be installed in the pair of electrodes (first electrode 62 and second electrode 63) in the electrode assembly case 61 and dc voltage is supplied to this electrode assembly power supply 64 (referring to Fig. 3) to electrode 62 and 63.Electrode assembly 60, and can be used for during wash cycle or rinse cycle, laundry item, bucket 11 or swing roller 12 being carried out high heat kill bacterium (pasteurize) during wash cycle or rinse cycle, measuring detergent water (water+washing agent) or rinsing water turbidity as sensor.
The pair of electrodes 62 and 63 of electrode assembly 60 is installed on the circulation passage 52.Be installed under the situation on the circulation passage 52 at electrode 62 and 63, owing to have only when water cycle is passed through circulation passage 52, in electrode 62 and the 63 submergences water inlet, so, can prevent that electrode 62 and 63 from being polluted owing to electrode 62 and 63 is immersed in the water for a long time.In addition; When electrode 62 and 63 is installed in 52 last times of circulation passage, electrode 62 and 63 is measured water turbidities, thereby can measure water turbidity more accurately (because when electrode is installed in the ad-hoc location of bucket; Electrode is only measured and is accumulated in electrode water turbidity on every side; So, when washing agent is dissolved in the water unevenly, can not accurately measure water turbidity).
The paired electrode 62 and 63 of electrode assembly 60 is by number of various materials.For example, first electrode 62 can be the silver electrode of argentiferous (Ag), and second electrode 63 can be the titanium electrode of titaniferous (Ti).Second electrode 63 can coating have platinum or iridium, is used for the raising of durability degree.
When silver electrode during, that is to say that as positive electrode, service voltage is to produce silver ion as first electrode 62.Utilize the sterilizing ability of silver ion, can be to the laundry item sterilization in swing roller 12, bucket 11 and the swing roller 12.
In addition, use the titanium electrode can prevent during wash cycle and rinse cycle, electrode 62 and 63 ionization and consumption when electrode assembly 60 is used as sensor as second electrode 63.Even voltage supplies to positive electrode, that is, during the second titanium electrode, because low degree of ionization, titanium is also with the minimally oxidation.
In addition, as shown in Figure 3, utilize the washing machine of control method of the present invention to comprise signal input unit 71, level switch 72, current detector 73 and controller 74.
Signal input unit 71 will be input to controller 74 such as the operation information of washing process of being selected by the user and extra rinsing, and level switch 72 detects the water level of the water that supplies to bucket 11.Current detector 73 detects the size of the electric current that when voltage supplies to pair of electrodes 62 and 63, between pair of electrodes 62 and 63, flows, and the result that will detect sends to controller 74.
Controller 74 is a microcomputer, in order to based on the operation information control washing machine from signal input unit 71 input, and will be stored in the washing procedure of selection according to load (weight of laundry item) predetermined wash time and rinsing number of times.Controller 74 also stores the current value I w as reference value, and it is used to judge whether adding excessive washing agent during the wash cycle and during rinse cycle, as the current value I r of the reference value that is used to judge the rinsing water turbidity.Since washing agent in being dissolved in water the time as electrolytic solution, so when electrode 62 and 63 is immersed in detergent water or the washings, the size of current of detection detection is to draw the amount that is dissolved in the washing agent in detergent water or the washings.
Controller 74 is judged the amount of the washing agent that during rinse cycle, is added by the user based on the information of sending from current detector 73 or is retained in the amount of the washing agent the washings, and changes the situation (for example, the number of times of rinsing) of rinse cycle based on the result who judges.In other words, the rinsing water yield of the predetermined rinsing water yield when controller 74 is supplied with greater than initial rinse cycle is carried out rinse cycle when adding excessive washing agent the user.In addition, the size of current that when in rinse cycle, detects is during less than reference value I r, and controller 74 judges that rinsings are abundant, and finishes rinse cycle.
After this, form the control method of aforesaid washing machine with reference to accompanying drawing 3, Fig. 4 A and Fig. 4.Fig. 4 A and Fig. 4 B are the process flow diagrams according to the control method of the washing machine of the embodiment of the invention shown in the diagram.
When laundry item is put in the swing roller 12, and the user is when selecting the operation information such as washing process, wash temperature, rinsing number of times etc., and the operation information of being selected by the user is input to controller 74 through signal input unit 71.
Then, controller 74 begins washing based on the operation information from signal input unit 71 inputs, and at first judges whether begin operation (S100).
If begin operation, then controller 74 detects the load capacity (laundry item weight) put in the swing roller 12 (S102), and sets wash time a and rinsing number of times b (S104) based on the load capacity that detects.
Continuously, controller 74 is fetched boiling water supply valve 31 so that washing agent and water (washings particularly) are joined the washing (S106) that is used for laundry item in the bucket 11 together.
After detergent water (washings+washing agent) supplied in the bucket 11, the ebullator 53 that controller 74 drives circulating device 50 was so that detergent water cycles through circulation passage 51 and 52.Then, the detergent water that is positioned at bucket 11 downsides flows to the upside of bucket 11, and is ejected in the swing roller 12 through nozzle 54, makes laundry item evenly soak, and makes washing agent be dissolved in (S108) in the water equably.
Controller 74 is judged preset times whether over and done with (S110), and when preset time is over and done with, in the cycle period of detergent water, voltage is supplied to first and second electrodes 62 and 63 that are installed on the circulation passage 52.At this moment, voltage supplies to positive electrode, that is, and and second titanium electrode 63 and the negative electrode, i.e. first silver electrode 62.Then, silver electrode that is to say, first electrode 62 can prevent owing to oxidation consumes.When voltage supplied to first and second electrodes 62 and 63, electric current flow through the detergent water that passes circulation passage 52, and simultaneously, current detector 73 detects the big or small I1 (S112) of the electric current that between two electrodes 62 and 63, flows.
Then, controller 74 judges whether the size of current I1 that detects is equal to or greater than reference value I w (S114), and when the size of current I1 that detects execution wash cycle (S120) during less than reference value I w.In other words; Controller 74 is carried out wash cycle; Wherein owing to the rotation of swing roller 12, detergent water (water+washing agent) mixes with laundry item well, and the acting force that falls through friction force between swing roller 12 and the laundry item and laundry item washs.
On the other hand, when the size of current I1 that detects be equal to or greater than reference value I w as operation S114 as a result the time, operation below carrying out, and carry out wash cycle.Controller 74 changes the rinsing number of times of during initial rinse cycle, carrying out, and carries out after a while.In other words, controller 74 is set the number of times of rinsing once more, thereby can supply with the rinsing water yield (S116) greater than the rinsing water yield b of initial setting.In addition, when judging as stated, controller 74 hopes that wash time prolongs, and preset time (for example, being used to carry out once more the time of rinse cycle) is added to wash time a, and on display screen 14, shows the schedule time that increases.The information that controller 74 will add excessive washing agent is presented on the display screen 14, makes the user can reset the wash time (S118) on the display screen.
When wash cycle finishes, the beginning rinse cycle.When beginning initial rinse cycle, controller 74 is fetched boiling water supply valve 31 supplying to bucket 11 with the predetermined as many water of the rinsing water yield.Owing to determine and when above-mentioned wash cycle, added excessive washing agent, so, when once more when initial rinse cycle is set the rinsing water yield, supply with and the washings of the amount of resetting as much.On the other hand, when judgement does not add excessive washing agent, carry out wash cycle, supply with the as many washings of rinsing water yield b (S122) with initial setting.
When supplying with washings, carry out initial rinse cycle, and controller 74 countings have been carried out rinse cycle once (S122 and S124).
When initial rinse cycle finishes, carry out rinse cycle next time, and controller counting rinse cycle is carried out once more.Likewise, the frequency n of carrying out through the counting rinse cycle, the number of times of the rinse cycle that will carry out through restriction, each rinse cycle power and water source of all avoiding waste.In the rinse cycle after initial rinse cycle, supply with by the washings of forming with the water of initial set amount b as much (S128 and S130).
Before this rinse cycle finished, controller 74 drove ebullator 53 so that the washings in the bucket 11 cycle through circulation passage 51 and 52, and voltage is supplied to first and second electrodes 62 and 63.In this case, the same with wash cycle, through the titanium electrode, just second electrode 63 is as positive electrode and silver electrode, and just first electrode 62 is as the mode service voltage of negative electrode.Then, electric current flows through the washings through circulation passage 52, and current detector 73 detects the big or small I2 (S132) of the electric current that between two electrodes 62 and 63, flows.
Continuously, controller 74 judges whether the size of current I2 that detects is equal to or less than reference value I r (S134).
When the size of current I2 that determines detection is equal to or less than reference value I r; Controller 74 is recognized and the corresponding current rinse cycle of last rinse cycle; And before current rinse cycle finishes, change the polarity (S138) of the voltage that supplies to first and second electrodes 62 and 63 through control electrode device power supply 64.In other words, controller 74 through with silver electrode promptly first electrode 62 be the mode service voltage of second electrode as positive electrode and titanium electrode as negative electrode.Supply in the washings by the 62 generation oxidations of first electrode and with silver ion then.Silver ion supplies to the circulation washings and is the laundry item sterilization in the swing roller 12.Likewise, when the reversing of the voltage that supplies to first and second electrodes 62 and 63, can cleaning electrode.In other words, when through first electrode 62 as negative electrode and second electrode 63 during as the mode service voltage of positive electrode, positive charging pollutant is attached to first electrode 62, and negative charging pollutant is attached to second electrode 63.If supply to the reversing of the voltage of two electrodes 62 and 63, will remove pollutant because of the reason of repulsive force.
At this moment, when the size of current I2 that in operating S134, is detecting surpasses as the result's who judges reference value I r, judge whether the counts n of rinsing reaches the maximum permission times N (S136) of rinsing.As result relatively, when the maximum that does not reach rinsing as the counts n that determines rinsing allows times N, executable operations S128 once more, thus carry out rinse cycle once more, and carry out next step operation.
As result relatively, when the counts n of the rinsing that determines reaches the maximum permission times N of rinsing, carry out the operation of above-mentioned S138, thereby be the laundry item sterilization, and remove pollutant from electrode.
Whether the rinsing time that controller 74 is judged final rinse cycle over and done with (S140), when the rinsing time is over and done with, accomplishes rinse cycle (S142) at last, and after carrying out dewatering cycle, accomplishes washing operation (S144).
As stated, according to the present invention, the pollution level of monitoring washings, thus when the rinsing of laundry item is accomplished, finish rinse cycle automatically.Therefore, guaranteed rinsing performance reliably, and can prevent unnecessarily to waste water and electric energy.
In addition, according to the present invention, the amount of the washing agent that adds as the user is during greater than the amount of needs, and the user can notice the information that has added excessive washing agent, thereby the user can add suitable detergent amount afterwards.
In addition, in the present invention, the number of times of restriction rinse cycle even therefore electrode assembly breaks down, can prevent that also rinse cycle from repeating continuously.
According to the present invention, the turbidity of measurement and can when using electrode assembly, carry out to the sterilization of washings.
In addition,, automatically remove and be attached to the pollutant on the electrode, make the life-span of electrode prolong, and can guarantee the operational reliability of electrode assembly according to the present invention.
Although illustrated and explained embodiments of the invention; Yet what one of skill in the art will recognize that is; Under the situation that does not deviate from principle of the present invention and spirit, can change this embodiment, scope of the present invention is limited claim and equivalents thereof.

Claims (14)

1. measure the control method that the rinsing water turbidity is also judged the washing machine that whether finishes rinse cycle for one kind, said method comprises:
Make washings cycle through circulation passage;
Through voltage being supplied to the electrode that is installed on the circulation passage, measure the size of the electric current that flows through washings; And
The size of current I2 and the reference value I r that relatively detect, and whether finish rinse cycle according to result's judgement relatively;
Also comprise:
During the wash cycle of before rinse cycle, carrying out, make detergent water cycle through circulation passage;
When voltage supplies to electrode, detect the size of the electric current I 1 that in detergent water, flows; And
Through size of current I1 and the reference value I w that relatively detects, judge whether the detergent amount of user's adding is too much.
2. the control method of washing machine according to claim 1 wherein when the size of current I2 that detects is equal to or less than reference value I r, finishes rinse cycle, and as the size of current I2 of detection during greater than reference value I r, increases and carries out another time rinse cycle.
3. the control method of washing machine according to claim 1 wherein when the size of current I1 that detects is equal to or greater than reference value I w, shows the information that has added excessive washing agent on display screen.
4. the control method of washing machine according to claim 1 wherein when the size of current I1 that detects is equal to or greater than reference value I w, increases the number of times of rinse cycle, and on display screen, shows the wash time that prolongs.
5. the control method of washing machine according to claim 1 wherein when the size of current I1 that detects is equal to or greater than reference value I w, resets the amount of the washings of when initial rinse cycle, supplying with.
6. the control method of washing machine according to claim 1, wherein electrode is by the different materials manufacturing, and said control method further is included in before rinse cycle finishes, and changes the polarity of the voltage that supplies to electrode in the given time.
7. the control method of washing machine according to claim 1, one of them electrode comprises the silver electrode of argentiferous, and another electrode comprises the titanium electrode of titaniferous, and when voltage supplied to electrode, the titanium electrode was as positive electrode.
8. the control method of washing machine according to claim 1 also comprises:
The number of times of counting rinse cycle; And
Comparative result end rinsing based on the maximum number of rinse cycle number of times and the rinse cycle number of times of counting.
9. the control method of a washing machine, said method comprises:
During wash cycle, make the detergent water that accumulates in the bucket cycle through circulation passage;
Voltage supplied to by different materials make and be installed on the pair of electrodes on the circulation passage, whether excessive with the detergent amount that judgement is included in the detergent water;
During rinse cycle, make the washings that accumulate in the bucket cycle through circulation passage;
Through voltage being supplied on the said pair of electrodes, detect the big or small I2 of the electric current that flows through washings; And
The big or small I2 and the reference value I r of the electric current that relatively detects, and when the size of current I2 that detects is equal to or less than reference value I r, finish rinse cycle.
10. the control method of washing machine according to claim 9 also comprises:
Counting rinse cycle number of times; And
When the counts of rinse cycle number of times reaches the maximum number of rinse cycle number of times, even the size of current I2 that detects also finishes rinse cycle when surpassing reference value I r.
11. the control method of washing machine according to claim 9, a silver electrode that comprises argentiferous in the wherein said pair of electrodes, and another electrode comprises the titanium electrode of titaniferous.
12. the control method of washing machine according to claim 11, wherein when voltage supplied to said pair of electrodes, the titanium electrode was a positive electrode.
13. the control method of washing machine according to claim 11, wherein before rinsing finishes, when using silver electrode in the given time as positive electrode, service voltage.
14. the control method of washing machine according to claim 9; When wherein in determining detergent water, containing excessive washing agent; On display screen, show in the detergent water and contain the information of excessive washing agent, and reset the amount of the washings of when initial rinse cycle, supplying with.
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EP1978141A3 (en) 2009-12-16

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