CN103025945B - The control method of washing machine and the freezing management system of washing machine - Google Patents

The control method of washing machine and the freezing management system of washing machine Download PDF

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Publication number
CN103025945B
CN103025945B CN201180035580.2A CN201180035580A CN103025945B CN 103025945 B CN103025945 B CN 103025945B CN 201180035580 A CN201180035580 A CN 201180035580A CN 103025945 B CN103025945 B CN 103025945B
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China
Prior art keywords
mentioned
washing machine
water level
temperature
water
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Expired - Fee Related
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CN201180035580.2A
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Chinese (zh)
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CN103025945A (en
Inventor
金盟哲
李炫昇
朴钟亚
曺基喆
金亨勇
朴锡圭
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LG Electronics Inc
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LG Electronics Inc
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Publication date
Priority claimed from KR1020100065049A external-priority patent/KR101689719B1/en
Priority claimed from KR1020100073613A external-priority patent/KR20120011639A/en
Priority claimed from KR1020100073609A external-priority patent/KR101711836B1/en
Priority claimed from KR1020100074242A external-priority patent/KR20120012217A/en
Priority claimed from KR1020100074239A external-priority patent/KR101774808B1/en
Priority claimed from KR1020100074238A external-priority patent/KR20120012213A/en
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Priority claimed from KR1020110066987A external-priority patent/KR20130005531A/en
Publication of CN103025945A publication Critical patent/CN103025945A/en
Publication of CN103025945B publication Critical patent/CN103025945B/en
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Expired - Fee Related legal-status Critical Current
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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
    • 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
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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
    • D06F2103/16—Washing liquid temperature
    • 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
    • D06F2105/02—Water supply
    • 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
    • D06F2105/08—Draining of washing liquids
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • 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 
    • D06F39/04—Heating 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
    • 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
    • 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
    • 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
    • D06F39/088—Liquid supply arrangements

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

Abstract

The present invention relates to the control method of following washing machine: equitemperature is lower and under the environment that washing machine may be caused to freeze in the winter time, by freezing to detect, the suitable control such as antifreeze, guarantee the stability of washing machine, and based on the correct information whether freezed of relevant washing machine, the management layer such as counter-measure and antifreezing measures when freezing can be improved.

Description

The control method of washing machine and the freezing management system of washing machine
Technical field
The present invention relates to the control method of washing machine and the freezing management system of washing machine.
Background technology
In general, washing machine comprises the water jacket for loading washings and is arranged at the inside of water jacket and the inside groove for accommodating clothing (hereinafter referred to as " washings ") etc. in the mode that can rotate, and along with inside groove rotates, carries out the washing of washings.
Washing machine can be divided into from pushing up loading type (top loading type) washing machine and from front loading type (front loading type) washing machine, wherein, above-mentioned in the loading type washing machine of top, vertically inside groove is set, to put into washings from upside, above-mentioned in front loading type washing machine, inside groove is horizontally disposed with and rotates centered by vertical axis, to put into washings from front.
From top, built-in washing machine roughly divides into stirring-type (agitator type) and impeller-type (pulsatortype), above-mentioned stirring-type makes to rotate from the agitators that the central authorities of inside groove are outstanding to wash, and above-mentioned impeller-type makes the impeller of the disc-shape of the bottom being formed at inside groove or inside groove rotation wash.
Be commonly called roller washing machine from front loading type washing machine, lifter be set at the inner peripheral surface of the cylinder forming inside groove, along with cylinder rotates, promoted and the washings that lands by lifter, thus perform washing.
As mentioned above, although there is the washing machine of variform, no matter be any, all have water supply installation and drainage arrangement, wherein, above-mentioned water supply installation is used for providing washings to water jacket and/or inside groove, above-mentioned drainage arrangement, after performing washing, rinsing, dehydration etc., discharges washings from water jacket.
Under existing washing machine is down to the environment such as sub-zero winter at external temperature, because washings freeze, produce the problem normally cannot running water supply installation or drainage arrangement.
Summary of the invention
Technical problem
The object of the invention is to, a kind of control method of the washing machine preventing washing machine from freezing is provided.
Further, the object of the invention is to, provide a kind of reflect washing machine internal temperature and stop the control method of the washing machine of the operation of washing machine according to set freezing condition.
Further, the object of the invention is to, a kind of control method of following washing machine is provided: if detect that the temperature of washing machine internal is below prescribed level, just allow user identify this situation, thus prevent freezing of washing machine in advance.
Further, the object of the invention is to, providing a kind of each step by running according to washing machine repeatedly to judge the control method whether freezing correctly to detect the washing machine whether freezed.
Further, the object of the invention is to, a kind of control method detecting the washing machine whether washing machine freezes is provided.
Further, the object of the invention is to, providing a kind of by removing the control method remaining in the washing machine that water more than washing machine internal prevents washings from freezing.
Further, the object of the invention is to, a kind of control method by making user optionally remove to remain in water more than washing machine internal to improve the washing machine of ease of use is provided.
Further, the object of the invention is to, provide a kind of and utilize communication media and closely or at a distance detecting and preventing the freezing management system of the washing machine freezed.
The means of dealing with problems
The control method of washing machine of the present invention comprises the following steps: step a, is detected the temperature of the inside of washing machine by temperature sensor; Step b, when the temperature detected is lower than design temperature, runs the heater being arranged at the inside of washing machine in above-mentioned steps a.
In addition, washing machine in the control method of washing machine of the present invention has at least one in feed water valve, draining valve and draining pump, the control method of above-mentioned washing machine comprises the following steps: step a, and the temperature sensor arranged by above-mentioned feed water valve, draining valve or the draining pump had at above-mentioned washing machine carrys out detected temperatures; Step b, when the temperature detected is lower than design temperature, runs above-mentioned feed water valve, draining valve or the draining pump with said temperature sensor in above-mentioned steps a.
In addition, the control method of washing machine of the present invention, comprises the following steps: step a, before supply washings, if the water level of the inside of water jacket just performs draining more than designated water level; Step b, if the draining required time in above-mentioned steps a is more than setting-up time, just compares the temperature of the inside of washing machine and fiducial temperature; And step c, in above-mentioned steps b, if the temperature of the inside of washing machine is lower than said reference temperature, just export the first error message.
In addition, the control method of washing machine of the present invention, comprise the following steps: step a, before the internal feed washings to water jacket, if the water level of the inside of above-mentioned water jacket just performs draining higher than the first designated water level, above-mentioned first designated water level overflows and the designated water level of setting to judge whether there occurs; Step b, if the water level of the inside of above-mentioned water jacket just performs draining higher than the second designated water level after above-mentioned steps a, above-mentioned second designated water level is lower than above-mentioned first designated water level; Step c, if the time in above-mentioned steps b needed for draining to predetermined water level is greater than predetermined draining setting-up time, just compares the temperature of the inside of washing machine and predetermined fiducial temperature; And steps d, if the temperature of the inside of washing machine is lower than above-mentioned predetermined fiducial temperature in above-mentioned steps c, just export the first error message.
In addition, the control method of washing machine of the present invention, comprises the following steps: step a, and the inside to water jacket provides washings; Step b, supply washings in the first water supply setting-up time after, if the temperature of the inside of washing machine and the 3rd fiducial temperature just compare lower than the first water supply designated water level is low by the water level of the inside of above-mentioned water jacket; And step c, if the temperature of the inside of washing machine just exports the first error message lower than above-mentioned 3rd fiducial temperature is low in above-mentioned steps b.
In addition, the control method of washing machine of the present invention, comprises the following steps: step a, to water jacket private water supply before detected temperatures; Step b, to the private water supply of above-mentioned water jacket; Step c, detects the water level of the inside of above-mentioned water jacket; And steps d, if the temperature detected in above-mentioned steps a is lower than fiducial temperature and the water level of the inside of above-mentioned water jacket cannot reach the first designated water level in the first setting-up time, just export the 5th error message.
In addition, the control method of washing machine of the present invention, comprises the following steps: step a, when applying power supply to feed water valve, detects the output voltage of above-mentioned feed water valve; And step b, when detecting that in above-mentioned steps a the output voltage of above-mentioned feed water valve reduces more than predetermined value, execution is thawed.
In addition, the control method of washing machine of the present invention, comprises the following steps: step a, when applying power supply to draining pump, detects the variable quantity of the output voltage of above-mentioned draining pump; And step b, when detecting that in above-mentioned steps a the output voltage of above-mentioned draining pump reduces more than predetermined value, execution is thawed.
In addition, the control method of washing machine of the present invention, comprises the following steps: step a, when applying power supply to draining valve, detects the variable quantity of the output voltage of above-mentioned draining valve; And step b, when detecting that in above-mentioned steps a the output voltage of above-mentioned draining valve reduces more than predetermined value, execution is thawed.
The freezing management system of washing machine of the present invention comprises: washing machine, is judging whether freezing of washings, and externally transmits the signal whether freezed of relevant above-mentioned washings by communication media; Remote adjustment device, receives whether freezing of above-mentioned washings from above-mentioned washing machine.
In addition, the freezing management system of washing machine of the present invention comprises: remote adjustment device, makes user input antifreeze signal about washings, and sends above-mentioned antifreeze signal by communication media to washing machine; Washing machine, after receiving above-mentioned antifreeze signal, performs the antifreeze operation of washings from above-mentioned remote adjustment device.
The effect of invention
Even if the control method of washing machine of the present invention has the effect that also can prevent washing machine from freezing under the environment that freeze-up equitemperature is lower.
Further, the control method of washing machine of the present invention is by directly heating the structure member of the washing machine likely freezed and can effectively performing the antifreeze of said structure parts or thaw.
Further, the control method of washing machine of the present invention has the effect that the self-heat generation produced when can run by said structure parts without the need to the extra heater for the structure member heating to frequent contact washings prevents from freezing.
Further, the control method of washing machine of the present invention has and can correctly detect the effect whether freezed.
Further, the control method of washing machine of the present invention each step had by running according to washing machine repeatedly judges whether freeze and can correctly detect the effect whether freezed.
Further, the control method of washing machine of the present invention has the effect that whether judgement is freezed before the predetermined strokes such as washing, rinsing, dehydration start.
Further, the control method of washing machine of the present invention has the operation of the stopping washing machine when washing machine freezes and informs that there occurs the mistake freezed impels the effect taken appropriate measures by externally exporting while can confirming stability.
Further, the control method of washing machine of the present invention has the effect that can prevent the remaining water in washing machine from freezing.
Further, the control method of washing machine of the present invention has by implementing when detecting that washing machine freezes to thaw and can prevent the effect that washing machine is shelved for a long time with frozen state.
Further, whether the change that the control method of washing machine of the present invention consists of the output voltage of the electronic unit of washing machine or output current etc. feed water valve, draining valve or draining pump etc. detects freezes and has and can simply, correctly detect the effect whether freezed.
Further, the freezing management system of washing machine of the present invention has the effect can supplying the information that relevant washing machine freezes to long-range user.
Further, whether the freezing management system of washing machine of the present invention can freezing by communication network remote acknowledgement washing machine.
Further, the freezing management system of washing machine of the present invention remotely performs action for preventing washing machine from freezing by communication network.
Accompanying drawing explanation
Fig. 1 is the side sectional view of the washing machine of one embodiment of the invention.
Fig. 2 is the partial enlarged drawing of the bottom representing the water jacket shown in Fig. 1.
Fig. 3 is the block diagram of the control structure of the washing machine representing one embodiment of the invention.
Fig. 4 is the example representing the structure of powering to prevent from freezing in the washing machine of one embodiment of the invention.
Fig. 5 is the precedence diagram of the control method of the washing machine representing the first embodiment of the present invention.
Fig. 6 is the precedence diagram of the control method of the washing machine representing the second embodiment of the present invention.
Fig. 7 is the precedence diagram of the control method of the washing machine representing the third embodiment of the present invention.
Fig. 8 is the precedence diagram of the control method of the washing machine representing the fourth embodiment of the present invention.
Fig. 9 a to Fig. 9 c is the precedence diagram of the control method of the washing machine representing the fifth embodiment of the present invention.
Figure 10 is the example again representing the structure of powering to prevent from freezing in the washing machine 100 of one embodiment of the invention.
Figure 11 is the precedence diagram of the control method of the washing machine representing the sixth embodiment of the present invention.
Figure 12 is the precedence diagram of the control method of the washing machine representing the seventh embodiment of the present invention.
Figure 13 is the precedence diagram of the control method of the washing machine representing the eighth embodiment of the present invention.
Figure 14 is the precedence diagram of the control method of the washing machine representing the ninth embodiment of the present invention.
Figure 15 is the precedence diagram of the control method of the washing machine representing the tenth embodiment of the present invention.
Figure 16 is the precedence diagram of the control method of the washing machine representing the 11st embodiment of the present invention.
Figure 17 is the precedence diagram of the control method of the washing machine representing the 12nd embodiment of the present invention.
Figure 18 is the precedence diagram of the control method of the washing machine representing the 13rd embodiment of the present invention.
Figure 19 is the precedence diagram of the control method of the washing machine representing the 14th embodiment of the present invention.
Figure 20 is the precedence diagram of the control method of the washing machine representing the 15th embodiment of the present invention.
Figure 21 is the precedence diagram representing the true control method of the washing machine of the 16th embodiment of the present invention.
Figure 22 is the precedence diagram of the control method of the washing machine representing the 17th embodiment of the present invention.
Figure 23 is the curve map of output voltage change (a) when representing that feed water valve thaws and draining pump output voltage change (b) when thawing.
Figure 24 is the precedence diagram of the control method of the washing machine representing the 18th embodiment of the present invention.
Figure 25 is the block diagram of the control flow of the freezing management system representing one embodiment of the invention.
Figure 26 is the precedence diagram freezing the first embodiment of management method representing washing machine.
Figure 27 is the precedence diagram freezing the second embodiment of management method representing washing machine.
Figure 28 is the precedence diagram freezing the 3rd embodiment of management method representing washing machine.
Detailed description of the invention
Advantages and features of the invention can be made referring to the embodiment be together described in detail with accompanying drawing and reach the method for this this advantage and feature clear and definite.But the present invention is not limited to the embodiment of following discloses, also the present invention can be realized by various mode.Following examples are just of the present invention open more complete and inform that complete category of the present invention provides to those skilled in the art in the invention in order to make, and the present invention is based on the category of claim and define.Identical Reference numeral in description full text represents identical structure member.
Fig. 1 is the side sectional view of the washing machine 100 representing one embodiment of the invention.Fig. 2 is the partial enlarged drawing of the bottom representing the water jacket shown in Fig. 1.Fig. 3 is the block diagram of the control structure of the washing machine 100 representing one embodiment of the invention.
Referring to figs. 1 through Fig. 3, the washing machine 100 of one embodiment of the invention comprises casing 1, water jacket 2, inside groove 3 and impeller 4, said machine casing 1 forms the outward appearance of washing machine 100, above-mentioned water jacket 2 is arranged in casing 1, for loading washings, above-mentioned inside groove 3 is rotatably arranged in water jacket 2, and for accommodating washings, above-mentioned impeller 4 is rotatably arranged at the bottom of inside groove 3.The multiple water hole 3h for making washings flow between water jacket 2 and inside groove 3 are formed at inside groove 3.Top cover 12 can be set on the top of water jacket 2, the substantially central portion opening of top cover 12, to put into washings to inside groove 3.Can have operated key and display etc. to provide in the configuration of the side of casing 1 control panel 11 of user interface, aforesaid operations key is for user's input for controlling the various instructions of the operation of washing machine, and aforementioned display device is for showing the running status of washing machine.
And, the washing machine 100 of one embodiment of the invention comprises water supply stream 5, feed water valve 6, detergent box 7, drainage flow path 9, draining valve 8, draining pump 10 and drive division 13, above-mentioned water supply stream 5 is connected with the first-class external water source of the fire hose, for supplying washings to inside groove 2 and water jacket 3, above-mentioned feed water valve 6 is for controlling water supply stream 5, above-mentioned detergent box 7 is for accommodating washing agent, above-mentioned drainage flow path 9 is for discharging the washings in water jacket 2, above-mentioned draining valve 8 is for controlling drainage flow path 9, above-mentioned draining pump 10 is arranged on drainage flow path 9, above-mentioned drive division 13 optionally makes inside groove 3 or impeller 4 rotate.
Drive division 13 comprises motor (not shown) and clutch (not shown), and above-mentioned motor is for generation of revolving force, and above-mentioned clutch is used for optionally the revolving force of above-mentioned motor being passed to inside groove 3 or impeller 4.
And, the washing machine 100 of one embodiment of the invention also comprises control part 14, antifreeze selection portion 16, level sensor 20, temperature sensor 18, display part 22 and heater 28, above-mentioned control part 14 is for controlling the overall operation of washing machine, above-mentioned antifreeze selection portion 16 is for inputting for preventing the control instruction freezed, above-mentioned level sensor 20 is for detecting the water level of the washings being contained in water jacket 2, and above-mentioned display part 22 is for showing the running status of washing machine.
Heater 28 can be arranged at the bottom of water jacket 2, as shown in Figure 2, form heater resettlement section in the bottom of water jacket 2 saggingly, this heater resettlement section forms the predetermined space for accommodating heater 28, further, the cover of heater 71 of the upside for covering above-mentioned heater resettlement section can be set in the bottom of water jacket 2.
The hole 71h for discharging the washings in water jacket 2 can being formed at cover of heater 71, the osculum 74 for discharging washings to drainage flow path 25 can be formed in above-mentioned heater resettlement section.
Temperature sensor 18 can be arranged at the bottom of water jacket 2.Temperature sensor 18 measures the temperature of washings or the temperature of air according to the water level of the washings in water jacket 2.Namely, the temperature that the temperature detected by temperature sensor 18 becomes the medium contacted with temperature sensor 18 is apparent, when being stored into the washings of more than predetermined water level and making temperature sensor 18 be immersed in washings in water jacket 2, said temperature can become the temperature of washings, can become the temperature of air in other situations.
Fig. 4 is the example representing the structure of powering to prevent from freezing in the washing machine of one embodiment of the invention.
With reference to Fig. 4, the washing machine 100 of one embodiment of the invention can comprise the first power suppling part 24 and second source supply unit 26.
Do not carry out washing at washing machine, rinsing or dehydration and be in holding state time, the first power suppling part 24 supplies the power supply of below pre-sizing, the power supply supplied by the first power suppling part 24, and washing machine also can run display part 22 in the standby state.
Second source supply unit 26 can supply the power supply of more than above-mentioned pre-sizing, and supply runs the power supply needed for heater 28.Further, second source supply unit 26 can be powered to drive division 13, with in order to perform washing, rinsing or dehydration.
In the washing machine 100 of one embodiment of the invention of the application, do not carry out washing at washing machine, rinsing or dehydration and be in holding state time, freeze to prevent the various structure members forming washing machine, and by temperature sensor 18 detected temperatures, and run heater 28 at detected said temperature lower than during design temperature.
At this, when above-mentioned design temperature refers to that washing machine is held on the condition of below above-mentioned design temperature, estimate the fiducial temperature that the various structure members of washing machine freeze, preferably, sub-zero value can be set as above-mentioned design temperature.
On the one hand, although the power supply supplied to temperature sensor 18 and heater 28 can by the some supplies in the first power suppling part 24 or second source supply unit 26, but preferably, do not carry out washing at washing machine, rinsing or dehydration and be in holding state, power supply is provided to temperature sensor 18 by the first power suppling part 24, and when the temperature detected by temperature sensor 18 is lower than design temperature, supplied the power supply run needed for heater 28 by second source supply unit 26.When washing machine is in holding state, there is the effect that can be reduced by the electricity that temperature sensor 18 consumes.
If antifreeze beginning, control part 14 controls the first power suppling part 24 makes it supply power supply needed for running temperature sensor 18, afterwards, when the temperature detected by temperature sensor 18 is lower than design temperature, control part 14 controls second source supply unit 26 makes it supply the power supply run needed for heater 28.
At this, above-mentioned antifreeze beginning refers to not allow the various structure members forming washing machine freeze and performs predetermined algorithm to have following two kinds of modes.
If the first washing machine does not carry out washing, rinsing or dehydration and be in holding state, just automatically start antifreeze.This has user without the need to the advantage in order to prevent freezing of washing machine from taking measures separately.
The second, as shown in Figure 3, washing machine has can select antifreeze antifreeze selection portion 16, only when user has been undertaken selecting by antifreeze selection portion 16, just starts antifreeze.
Antifreeze beginning (step S501, step S601, step S701, step S801) shown in Fig. 5 to Fig. 8 described later can adopt in above-mentioned two kinds any one.
And, the temperature that temperature sensor 18 can detect washing machine internal is just enough, can be the temperature in order to detect washings and the temperature sensor be arranged in water jacket 2, or be arranged at the temperature sensor of feed water valve 6, or be arranged at the temperature sensor of draining valve 8, or be arranged at the temperature sensor of draining pump 10.
On the one hand, drive division 13 can comprise the driver rotated to control above-mentioned motor to motor applying drive singal.As an example of above-mentioned driver; SPM (IPM can be exemplified; IntelligentPower Module); the applicable power metal oxide semiconductor field effect transistor (MOSFET for controlling electric power of SPM; Metal-Oxide-Semiconductor Field-EffectTransistor) or the electric device such as igbt (IGBT, Insulated Gate Bipolar Transistor) drive circuit or addition of the power module of self-protection function.
At this, above-mentioned SPM can have temperature sensor voluntarily, in the temperature detection step (step S502, step S602, step S702, step S802) of Fig. 5 to Fig. 8 described later, also can utilize the temperature sensor being arranged at above-mentioned SPM (IPM).
On the other hand, although do not illustrate in the drawing of the present application, but the category that should be interpreted as washing machine of the present invention comprises the drying dual-purpose washing machine having both drying function, common above-mentioned drying dual-purpose washing machine has to dry washings and supply the temperature sensor of the drying pipeline of high temperature air and the temperature for the inside that measures above-mentioned drying pipeline in the inside groove 3 that washings is housed, and this just shows that temperature sensor 18 is likely the temperature sensor of the temperature of the inside measuring above-mentioned drying pipeline.
On the other hand, heater 28 also can be arranged at the various structure members forming washing machine 100.Such as, the possibility that the feed water valve 6 having washings to flow, draining valve 8, draining pump 10 etc. freeze is high, and therefore heater can be arranged at feed water valve 6, draining valve 8 and/or draining pump 10.
Fig. 5 is the precedence diagram of the control method of the washing machine of the first embodiment of the present invention.
If antifreeze beginning (step S501), just by temperature sensor 18 detected temperatures (step S502), when the temperature detected by temperature sensor 18 is lower than design temperature, heater 28 runs (step S503, step S504).After heater 28 runs, as long as do not remove antifreeze (step S505), temperature sensor 18 just detected temperatures (step S506) repeatedly, when the temperature again detected by temperature sensor 18 is more than above-mentioned design temperature, heater 28 is stopped running (step S507, step S508).Afterwards, whether again relieve according to detection and freeze (step S505), by temperature sensor 18 detected temperatures (step S506), when the temperature detected is lower than above-mentioned design temperature, heater 28 (step S507, step S504) if reruning.
As mentioned above, according to the temperature detected by temperature sensor 18, heater 28 repeatedly runs (step S504) and stops (step S508), till lasting till that releasing is antifreeze.At this, remove above-mentioned antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Fig. 6 is the precedence diagram of the control method of the washing machine representing the second embodiment of the present invention.
If antifreeze beginning (step S601), just by temperature sensor 18 detected temperatures (step S602), when the temperature detected by temperature sensor 18 is lower than design temperature, heater 28 runs (step S603, step S604).After heater 28 runs, as long as do not remove antifreeze, temperature sensor 18 just detected temperatures (step S605) repeatedly, when the temperature again detected by temperature sensor 18 is more than above-mentioned design temperature, heater 28 is stopped running (step S606, step S608).
On the other hand, in the present embodiment, even if when the temperature detected by temperature sensor 18 is not higher than design temperature, when through setting-up time, heater is also stopped running (step S606, step S607, step S608).Above-mentioned setting-up time considers that the heat release degree of heater sets in the scope that can not make overheated heater.
Afterwards, whether freeze (step S609) according to again relieving, temperature sensor 18 is detected temperatures (step S602) periodically, and in the temperature detected lower than (step S603) during above-mentioned design temperature, heater 28 reruns.
As mentioned above, according to the temperature detected by temperature sensor 18, heater 28 repeatedly runs (step S604) and stops (step S608), till lasting till that releasing is antifreeze.At this, remove above-mentioned antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Fig. 7 is the precedence diagram of the control method of the washing machine representing the third embodiment of the present invention.
If antifreeze beginning (step S701), just by temperature sensor 18 detected temperatures (step S702), when the temperature detected by temperature sensor 18 is lower than design temperature, heater 28 repeatedly runs and stops (step S704).After heater 28 runs, as long as do not remove antifreeze (step S705), temperature sensor 18 just detected temperatures (step S705, step S706) repeatedly, again when the temperature detected by temperature sensor 18 is more than above-mentioned design temperature, heater 28 (step S707, step S708) out of service.
At this, for the interval that heater 28 does not run, be called in step S704 " termination ", and in step S708, be called " stopping ", this is because step S704 and step S708 has difference in the method for operation of heater.That is, in step S704, heater 28 repeatedly runs in the given time and stops, on the contrary, heater 28 out of service in step S708 turns back to step S705 from step S708, performs step S706 and step S707, before reruning, be in holding state, and do not run.
On the other hand, in step S707, when the temperature detected by temperature sensor 18 is lower than design temperature, returns to step S704 and repeatedly run and stop heater 28.
The difference of the 3rd embodiment and the first above-mentioned embodiment is, in 3rd embodiment, when the temperature detected by temperature sensor 18 (step S702) is lower than design temperature, and discontinuous operation heater 28, but repeatedly run and stop heater 28(step S704).
On the other hand, remove in step S705 antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Fig. 8 is the precedence diagram of the control method of the washing machine represented as fourth embodiment of the invention.
If antifreeze beginning (step S801), just by temperature sensor 18 detected temperatures (step S802), when the temperature detected by temperature sensor 18 is lower than design temperature, heater 28 repeatedly runs and stops (step S803, step S804).After heater 28 runs, as long as do not remove antifreeze, temperature sensor 18 just detected temperatures (step S805) repeatedly, when the temperature again detected by temperature sensor 18 is more than above-mentioned design temperature (step S806), heater 28 (step S808) out of service.
On the other hand, in the present embodiment, even if when the temperature detected by temperature sensor 18 is not higher than design temperature, when through setting-up time, heater is (step S806, S807, step S808) out of service also.Above-mentioned setting-up time considers that the heat release degree of heater sets in the scope that can not make overheated heater.
Afterwards, whether freeze (step S809) according to again relieving, temperature sensor 18 is detected temperatures (step S802) periodically, and when the temperature detected is lower than above-mentioned design temperature, heater 28 runs (step S803, step S804).
At this, for the interval that heater 28 does not run, be called in step S804 " termination ", and in step S808, be called " stopping ", this is because step S804 and step S808 has difference in the method for operation of heater.That is, in step S804, heater 28 repeatedly runs in the given time and stops, on the contrary, heater 28 out of service in step S808 turns back to step S802 from step S809, is in holding state, and can not runs in step S804 before reruning.
On the other hand, remove in step S809 antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Fig. 9 a to Fig. 9 c is the precedence diagram of the control method of the washing machine representing the fifth embodiment of the present invention.
The washing machine 100 of one embodiment of the invention at washing machine in order to carry out washing, rinsing or dehydration and the process detecting washing machine and whether freeze after running, can be performed.
The washing machine 100 of one embodiment of the invention judges correctly to judge whether freezing of washing machine by following whether freezing several times, above-mentioned whether freezing several times judges to refer to: whether the first time of being undertaken by a series of flow processs shown in Fig. 9 a freezes to judge, in a series of flow processs shown in above-mentioned Fig. 9 a, after applying voltage to washing machine, water level in water jacket 2 and the first designated water level are compared, judge whether to there occurs spilling, and perform draining according to judged result; Whether the second time of being undertaken by a series of flow processs shown in Fig. 9 b is freezed to judge, in a series of flow processs shown in above-mentioned Fig. 9 b, water level in water jacket 2 and the second designated water level are compared, the water level in water jacket 2 is more than the second designated water level, performs draining; And whether freezing to judge to perform the third time of being undertaken by a series of flow processs shown in Fig. 9 c after the strokes such as washing, rinsing and dehydration supply washings in water jacket 2.
Below, with reference to Fig. 9 a, the deterministic process whether concrete observation first time freezes.
Apply power supply, make washing machine bring into operation after (step S901), detect the water level in water jacket 2 by level sensor 20, and will the detected value that obtains be detected and the first designated water level compares, judge in water jacket 2, whether to there occurs spilling (step S902).The reason performing these processes is, detect whether before washing machine operations because special circumstances cause the spilling of the washings in water jacket 2 and whether the water yield exceedes regulation level and overflow from water jacket 2.Such as can enumerate following situation, that is, at feed water valve 6, exception occur, under the state of the power-off of washing machine, still continue the situation supplying washings in water jacket 2.Therefore preferably, consider and cause the water level that washings overflow from water jacket 2 to set the first designated water level.
If be judged as that in step S902 water level in water jacket 2 is higher than the first designated water level, control part 14 just makes display part 22 export the 3rd error message (step S903).3rd error message allows user identify and there occurs overflow and the information of output.
Afterwards, control part 14 makes draining pump 10 run the washings (step S904) of discharging in water jacket 2, water level within the predetermined time in water jacket 2 is lower than in the situation (step S905) of the second designated water level, (OFF) the 3rd error message (step S906) will be closed, preferably, be that the second designated water level should using the empty water level settings of all discharging state as the washings in water jacket 2.Below, be described with the situation of the second designated water level for empty water level.
On the other hand, in step S905, when water level in water jacket 2 fails to reach the second designated water level, continuation runs by draining pump 10, until water discharge time is through the first draining setting-up time, under water level in water jacket 2 fails to reach the situation (step S907) of the second designated water level, the temperature detected by temperature sensor 18 and the first fiducial temperature are compared (step S908) by control part 14, its result, if be judged as that detected said temperature is low lower than the first fiducial temperature, just show the first error message by display part, if be judged as that detected temperature is above-mentioned high higher than the first fiducial temperature, just export the second error message or the 3rd error message (step S910) by display part 22.
Below, with reference to Fig. 9 b, the concrete deterministic process of observing second time and whether freezing.
Whether second time freezes deterministic process is perform under water level in water jacket 2 condition lower than the first designated water level.Namely, in order to be judged as that in step S902 the water level that detected by level sensor 20 is low lower than the first designated water level, or the water level after step S902, step S903, step S904, step S905, step S906 in water jacket 2 lower than the second designated water level when, in the process performed afterwards for judge whether freeze.
Whether second freeze deterministic process comprises the step (step S911) temperature detected by temperature sensor 18 and the second fiducial temperature compared.In step S911, the said temperature detected is below the second fiducial temperature, control part 14 controls display part 22 and exports the first error message (step S912).
In step S911 in water jacket 2 water level likely below the first designated water level below (situation about likely occurring when directly entering into step S911 after step S902) or the second designated water level (water level such as after performing step S902, step S903, step S904, step S905 and step S906 successively in water jacket 2 becomes the situation of sky water level).When water level in water jacket 2 is higher than the second designated water level and lower than the first designated water level, temperature sensor 18 detects the temperature of the washings in water jacket 2.On the contrary, the water level in water jacket 2 is lower than in the situation (such as, empty water level) of the second designated water level, and temperature sensor 18 detects the temperature of the air of the inside of washing machine.Consider the problem that washings freeze, preferably sub-zero value is set as the second fiducial temperature, considers the situation being detected air themperature by temperature sensor 18, also the value below subzero water degree can be set as the second fiducial temperature.
When being judged as that in step S911 the temperature that detected by temperature sensor 18 is lower than the second fiducial temperature, control part 14 is just judged as that the temperature of the inside of washing machine is fully low, and reach the degree that can fully freeze, directly export the first error message (step S912) by display part 22.With regard to the execution by step S911 and step S912 whether freeze detect with regard to, with the draining characteristics of washings independently, only according to the detected value of temperature sensor 18 for whether freezing according to judgement or prediction, be not limited to the order shown in Fig. 9 b, can perform any time in washing machine running.
Particularly, in step S911, preferably by experiment, suitable value is set as the second setting temperature, with can with sufficient correctness, the settled temperature detected by temperature sensor 18 is below the second design temperature in advance washing machine structure member such as feed water valve 6 or draining pump 10 etc. will freeze.
On the other hand, in step S911, be judged as that the temperature detected by temperature sensor 18 is higher than the second fiducial temperature, the water level detected by level sensor 20 and the 3rd designated water level are compared (step S913) by control part 14.
There are the washings of water level more than the 3rd water level and below the first designated water level in the above-mentioned water level detected higher than referring to when the 3rd designated water level in water jacket 2, in the case, control part 14 runs draining pump 10 and performs draining (step S915), perform draining in the second draining setting-up time after, if the variation value of the water level in water jacket 2 (step S916) more than a reference value, just be judged as carrying out normal draining, and detect the amount (step S914) of washings, on step S916, even if establish the time (step S917) if having passed through the second draining, fluctuation of water table value is also still below a reference value, then the temperature detected by temperature sensor 18 and the 3rd fiducial temperature are compared (step S918), when the said temperature detected is lower than the 3rd fiducial temperature, control part 14 controls display part 22 and exports the first error message (step S919), when the said temperature detected is higher than the 3rd fiducial temperature, control part 14 controls display part 22 and exports the second error message (step S920).Whether third time freezes deterministic process and can perform under water level in water jacket 2 condition below the 3rd designated water level, and performs after the detecting step of the amount of the washings that can illustrate in figure 9b (step S914).
In step S914, if the amount of the washings in inside groove 6 detected, the pattern of each stroke such as washing, rinsing, dehydration that will perform after just setting according to the amount of the washings detected.
In water re-supplying step (step S921), in water jacket 2, supply washings, now, the amount of the washings supplied also sets according to the amount of the washings detected in step S914.
In step S921 after water supply start, if through the first water supply setting-up time (step S922), just perform the step (step S923) water level in water jacket 2 and the first water supply designated water level compared, whether normally carry out to judge to supply water, if the water level detected by level sensor 20 is more than the first water supply designated water level, control part 14 is just judged as supplying water normally, and after the second water supply setting-up time, the water level in water jacket 2 and the second water supply designated water level compare (step S928) by (step S924) again.At this, estimate the water level reached when the first water supply designated water level refers to normal water supply in the first water supply setting-up time, the second water supply designated water level refers to the target water level that will supply in water jacket 2 according to the amount of the washings detected in step S914.
On the other hand, if be judged as that in step S923 the water level in water jacket 2 fails to reach the first water supply designated water level, the temperature detected by temperature sensor 18 and the 4th fiducial temperature are just compared (step S925) by control part 14, comparative result, when the said temperature detected is lower than the 4th fiducial temperature, controls display part 22 and show the first error message, on the contrary, when the said temperature detected is higher than the 4th fiducial temperature, export the 4th error message.At this, the 4th error message is that to inform because feed water valve 6 etc. breaks down to user cannot the information of normal water supply.
On the other hand, even if the water level detected by level sensor 20 in step S928 fails to reach the second water supply designated water level, control part 14 also can control display part 22 and show the 4th error message (step S929).
On the contrary, if the water level detected by level sensor 20 in step S928 is higher than the second water supply designated water level, just belong to the situation of normal water supply, afterwards, control part 14 is heated in water jacket 2 through first time washing (step S930), operation heater 28 by predetermined algorithm washings (step S911), for the second time washing (step S932) and draining (step S933) perform washing stroke.At this, when carrying out above-mentioned first time washing (step S930), second time washing (step S932), inside groove 6 and/or impeller 4 rotate, and by draining pump 10 draining (step S933).
After draining (step S933) time reaches the 3rd draining setting-up time (step S929), the water level in water jacket 2 also fails to reach draining when terminating water level, and control part 14 controls display part 22 and shows the second error message (step S940).On the contrary, if be judged as that the water level in water jacket 2 terminates below water level in draining in step S934, just belong to the situation of proper drainage, afterwards, after performing rinsing (step S935), simple dehydration (step S936), formal dehydration (step S937) etc., power-off (OFF) (the step S935) of washing machine, thus washing machine terminates to run.
Figure 10 is the example again representing the structure of powering to prevent from freezing in the washing machine 100 of one embodiment of the invention.
With reference to Figure 10, the washing machine of the present embodiment comprises the first power suppling part 24 and second source supply unit 26.
Do not carry out washing at washing machine, rinsing or dehydration and be in holding state, first power suppling part 24 supplies the power supply of below pre-sizing, by the power supply supplied by the first power suppling part 24, under laundry apparatus standby state, also can run display part 22.
Second source supply unit 26 can supply the power supply of more than above-mentioned pre-sizing, and supply runs feed water valve 6, draining valve 8 and the power supply needed for draining pump 10.On the other hand, in washing, rinsing or when dewatering, power to drive division 13 by second source supply unit 26.
In the washing machine of the present embodiment, do not carry out washing at washing machine, rinsing or dehydration and be in holding state, in order to prevent freezing of the various structure members of formation washing machine, by temperature sensor 18 detected temperatures, when the said temperature detected is lower than design temperature, run the various structure members forming washing machine, what occur when being run by said structure parts prevents from freezing from heat release.
At this, when above-mentioned design temperature refers to that washing machine is held on the condition of below above-mentioned design temperature, estimate the fiducial temperature that the various structure members of washing machine freeze, preferably, sub-zero value can be set as above-mentioned design temperature.
On the other hand, although the power supply supplied to temperature sensor 18 and heater 28 can by the some supplies in the first power suppling part 24 or second source supply unit 26, but preferably, do not carry out washing at washing machine, rinsing or dehydration and be in holding state, power supply is provided to temperature sensor 18 by the first power suppling part 24, and when the temperature that temperature sensor 18 detects is lower than design temperature, supplied the power supply run needed for heater 28, feed water valve 6, draining valve 10 or draining pump 10 by second source supply unit 26.When washing machine is in holding state, there is the effect that can be reduced by the electricity that temperature sensor 18 consumes.
If antifreeze beginning, control part 14 controls the first power suppling part 24 makes it supply power supply needed for running temperature sensor 18, afterwards, when the temperature detected by temperature sensor 18 is lower than design temperature, control part 14 controls second source supply unit 26 makes it supply the power supply run needed for heater 28.
At this, above-mentioned antifreeze beginning refers to not allow the various structure members forming washing machine freeze and performs predetermined algorithm to have following two kinds of modes.
If the first washing machine does not carry out washing, rinsing or dehydration and be in holding state, just automatically start antifreeze.This has user without the need to the advantage in order to prevent freezing of washing machine from taking measures separately.
The second, as shown in Figure 10, washing machine has can select antifreeze antifreeze selection portion 16, only when user has been undertaken selecting by antifreeze selection portion 16, just starts antifreeze.
Antifreeze beginning (step S1101, step S1201, step S1301, step S1401, step S1501, step S1601, step S1701, step S1801) shown in Figure 11 to Figure 18 described later can adopt in above-mentioned two kinds any one.
Further, it is some that temperature sensor 18 of the present invention can be arranged in feed water valve 6, draining valve 8 or draining pump 10, and be described in more detail in embodiment described later.
Below, with reference to Figure 11 to Figure 18, the embodiment of the means to prevent freezing of feed water valve 6 is described.But it is antifreeze that the means to prevent freezing shown in Figure 11 to Figure 18 is tried out in draining valve 8 equally, and difference is in the case, and temperature sensor 18 is arranged at draining valve 10, and determine whether running draining valve 10 according to the detected value of temperature sensor 18.
Figure 11 is the precedence diagram of the control method of the washing machine representing the sixth embodiment of the present invention.In the present embodiment, temperature sensor 18 is arranged on feed water valve 6.
If antifreeze beginning (step S1101), just by temperature sensor 18 detected temperatures (step S1102), the temperature detected by temperature sensor 18 is low lower than design temperature, and feed water valve 6 runs (step S1103, step S1104).After feed water valve 6 runs, as long as do not remove antifreeze, temperature sensor 18 just detected temperatures (step S1106) repeatedly, when the temperature again detected by temperature sensor 18 is more than above-mentioned design temperature, feed water valve 6 is stopped running (step S1107, step S1108).Afterwards, whether again relieve according to detection and freeze (step S1105), by temperature sensor 18 detected temperatures (step S1106), when the temperature detected is lower than above-mentioned design temperature, feed water valve 6 (step S1103, step S1104) if reruning.
As mentioned above, according to the temperature detected by temperature sensor 18, feed water valve 6 repeatedly runs (step S1104) and stops (step S1108), till lasting till that releasing is antifreeze.At this, remove above-mentioned antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Figure 12 is the precedence diagram of the control method of the washing machine representing the seventh embodiment of the present invention.
In the present embodiment, temperature sensor 18 is arranged on feed water valve 6.
If antifreeze beginning (step S1201), just by temperature sensor 18 detected temperatures (step S1202), when the temperature detected by temperature sensor 18 is lower than design temperature, feed water valve 6 runs (step S1203, step S1204).After feed water valve 6 runs, as long as do not remove antifreeze, temperature sensor 18 just detected temperatures (step S1205) repeatedly, when the temperature again detected by temperature sensor 18 is more than above-mentioned design temperature, feed water valve 6 is stopped running (step S1206, step S1208).
On the other hand, in the present embodiment, even if when the temperature detected by temperature sensor 18 is not higher than design temperature, when through setting-up time, feed water valve 6 is also stopped running (step S1206, step S1207, step S1208).Above-mentioned setting-up time considers the heat release degree of feed water valve 6, sets in the scope that can not make overheated heater.
Afterwards, whether freeze (step S1209) according to again relieving, temperature sensor 18 periodically detected temperatures, in the temperature detected lower than (step S1203) during above-mentioned design temperature, feed water valve 6 if reruning (step S1204).
As mentioned above, according to the temperature passed through detected by temperature sensor 18, feed water valve 6 repeatedly runs and stops, till lasting till that releasing is antifreeze.Remove above-mentioned antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Figure 13 is the precedence diagram of the control method of the washing machine representing the eighth embodiment of the present invention.
In the present embodiment, temperature sensor 18 is arranged on feed water valve 6.
If antifreeze beginning (step S1301), just by temperature sensor 18 detected temperatures (step S1302), the temperature detected by temperature sensor 18 is lower than (step S1303) during design temperature, and feed water valve 6 repeatedly runs and stops (step S1304).After feed water valve 6 runs, as long as when not removing antifreeze (step S1305), temperature sensor 18 just periodically detected temperatures (step S1306), again when the temperature detected by temperature sensor 18 is more than above-mentioned design temperature (step S1307), feed water valve 6 (step S1308) out of service.
At this, for the interval that feed water valve 6 does not run, be called in step S1304 " termination ", and in step S1308, be called " stopping ", this is because step S1304 and step S1308 has difference in the working method of heater.That is, in step S1304, feed water valve 6 repeatedly runs in the given time and stops, and on the contrary, in step S1308, returns to step S1305, performs step S1306 and step S1307, standby before reruning, and does not run.
On the other hand, in step S1307, when the temperature detected by temperature sensor 18 is lower than design temperature, returns to step S1304 and repeatedly run and stop feed water valve 6.
In the present embodiment, when the temperature (step S1302) detected by temperature sensor 18 is lower than design temperature, and discontinuous operation feed water valve 6, but repeatedly run and stop feed water valve 6.
On the other hand, remove in step S1305 antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Figure 14 is the precedence diagram of the control method of the washing machine representing the ninth embodiment of the present invention.
In the present embodiment, temperature sensor 18 is arranged on feed water valve 6.
If antifreeze beginning (step S1401), just by temperature sensor 18 detected temperatures (step S1402), the temperature detected by temperature sensor 18 is lower than (step S1403) during design temperature, and feed water valve 6 repeatedly runs and stops (step S1404).After feed water valve 6 runs, as long as do not remove antifreeze, temperature sensor 18 just periodically detected temperatures (step S1405), when the temperature again detected by temperature sensor 18 is more than above-mentioned design temperature, feed water valve 6 (step S1406, step S1408) out of service.
On the other hand, in the present embodiment, even if when the temperature detected by temperature sensor 18 is not higher than design temperature, when through setting-up time, feed water valve 6 is (step S1406, step S1407, step S1406, step S1407, step S1408) out of service also.Above-mentioned setting-up time considers that the heat release degree of feed water valve 6 is can not make to set in the overheated scope of feed water valve 6.
Afterwards, whether freeze (step S1409) according to again relieving, temperature sensor 18 periodically detected temperatures, when the temperature detected is lower than above-mentioned design temperature, feed water valve 6 (step S1403, step S1404) if reruning.
At this, for the interval that feed water valve 6 does not run, be called in step S1404 " termination ", and in step S1408, be called " stopping ", this is because step S1404 and step S1408 has difference in the working method of feed water valve 6.That is, in step S1404, feed water valve 6 repeatedly runs in the given time and stops, on the contrary, feed water valve 6 out of service in step S1408 turns back to step S1402 from step S1409, is in holding state, and can not runs in step S1403 before reruning.
On the other hand, remove that antifreeze condition is that user by selecting portion 16 inputs that contact command or user export for carrying out washing in step S1409, the control instruction of rinsing or dehydration.
Figure 15 is the precedence diagram of the control method of the washing machine representing the tenth embodiment of the present invention.
In the present embodiment, temperature sensor 18 is arranged on draining pump 10.
If antifreeze beginning (step S1501), just by temperature sensor 18 detected temperatures (step S1502), when the temperature detected by temperature sensor 18 is lower than design temperature, draining pump 10 runs (step S1503, step S1504).After draining pump 10 runs, as long as do not remove antifreeze, temperature sensor 18 just detected temperatures (step S1506) repeatedly, when the temperature again detected by temperature sensor 18 is more than above-mentioned design temperature, draining pump 10 is stopped running (step S1507, step S1508).Afterwards, whether again relieve according to detection and freeze (step S1505), by temperature sensor 18 detected temperatures (step S1506), when the temperature detected is lower than above-mentioned design temperature, draining pump 10 (step S1507, step S1504) if reruning.
As mentioned above, according to the temperature detected by temperature sensor 18, draining pump 10 repeatedly runs (step S1504) and stops (step S1508), till lasting till that releasing is antifreeze.At this, remove above-mentioned antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Figure 16 is the precedence diagram of the control method of the washing machine representing the 11st embodiment of the present invention.
In the present embodiment, temperature sensor 18 is arranged on draining pump 10.
If antifreeze beginning (step S1601), just by temperature sensor 18 detected temperatures (step S1602), when the temperature detected by temperature sensor 18 is lower than design temperature, draining pump 10 runs (step S1603, step S1604).After draining pump 10 runs, as long as do not remove antifreeze, temperature sensor 18 just detected temperatures (step S1605) repeatedly, when the temperature again detected by temperature sensor 18 is more than above-mentioned design temperature, draining pump 10 is stopped running (step S1606, step S1608).
On the other hand, in the present embodiment, even if when the temperature detected by temperature sensor 18 is not higher than design temperature, when through setting-up time, draining pump 10 is also stopped running (step S1606, step S1607, step S1608).Above-mentioned setting-up time considers that the heat release degree of draining pump 10 is can not make to set in the overheated scope of draining pump 10.
Afterwards, whether freeze (step S1609) according to again relieving, temperature sensor 18 periodically detected temperatures, when the temperature detected is lower than above-mentioned design temperature, draining pump 10 (step S1603, step S1604) if reruning.
As mentioned above, according to the temperature detected by temperature sensor 18, repeatedly run and stop draining pump 10, till lasting till that releasing is antifreeze.At this, remove above-mentioned antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Figure 17 is the precedence diagram of the control method of the washing machine representing the 12nd embodiment of the present invention.
In the present embodiment, temperature sensor 18 is arranged on draining pump 10.
If antifreeze beginning (step S1701), just by temperature sensor 18 detected temperatures (step S1702), when the temperature detected by temperature sensor 18 is lower than design temperature, draining pump 10 runs (step S1703, step S1704).After draining pump 10 runs, as long as do not remove antifreeze, temperature sensor 18 just periodically detected temperatures (step S1706), when the temperature again detected by temperature sensor 18 is more than above-mentioned design temperature, draining pump 10 (step S1707, step S1708) out of service.
At this, for the interval that draining pump 10 does not run, be called in step S1704 " termination ", and in step S1708, be called " stopping ", this is because step S1704 and step S1708 has difference in the method for operation of draining pump 10.Namely, in step S1704, draining pump 10 repeatedly runs in the given time and stops, on the contrary, draining pump 10 out of service in step (S1708) turns back to step S1705 from step S1709, perform step S1706 and step S1707, before reruning, be in holding state, and do not run.
On the other hand, in step S1707, when the temperature detected is lower than design temperature, return to step S1704 by temperature sensor 18, repeatedly run and stop draining pump 10.
In the present embodiment, when the temperature (step S1702) detected by temperature sensor 18 is lower than design temperature, and discontinuous operation draining pump 10, but repeatedly run and stop.
On the other hand, remove in step S1705 antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Figure 18 is the precedence diagram of the control method of the washing machine representing the 13rd embodiment of the present invention.
If antifreeze beginning (step S1801), just by temperature sensor 18 detected temperatures (step S1802), when the temperature detected by temperature sensor 18 is lower than design temperature, draining pump 10 runs (step S1803, step S1804).After draining pump 10 runs, as long as do not remove antifreeze, temperature sensor 18 just periodically detected temperatures (step S1805), when the temperature again detected by temperature sensor 18 is more than above-mentioned design temperature, draining pump 10 (step S1806, step S1808) out of service.
On the other hand, in the present embodiment, even if when the temperature detected by temperature sensor 18 is not higher than design temperature, when through setting-up time, draining pump 10 is (step S1806, step S1807, step S1808) out of service also.Above-mentioned setting-up time considers that the heat release degree of draining pump 10 is can not make to set in the overheated scope of draining pump 10.
Afterwards, whether freeze (step S1809) according to again relieving, temperature sensor 18 periodically detected temperatures, when the temperature detected is lower than above-mentioned design temperature, draining pump 10 (step S1803, step S1804) if reruning.
At this, for the interval that draining pump 10 does not run, be called in step S1804 " termination ", and in step S1808, be called " stopping ", this is because step S1804 and step S1808 has difference in the method for operation of draining pump 10.That is, in step S1804, draining pump 10 repeatedly runs in the given time and stops, on the contrary, draining pump 10 out of service in step S1808 turns back to step S1802 from step S1809, is in holding state, and can not runs in step S1804 before reruning.
On the other hand, remove in step S1809 antifreeze condition be user by selecting portion 16 input contact command or user's input for carrying out washing, the control instruction of rinsing or dehydration.
Above in viewed embodiment, the heat produced when utilizing the electronic unit forming washing machine to run prevents freezing of washing machine, particularly, prevents from freezing by running feed water valve 6, draining valve 8 or the draining pump 10 that may frequently freeze because of remaining water.
Figure 19 is the precedence diagram of the control method of the washing machine representing the 14th embodiment of the present invention.
With reference to Figure 19, the control method of the washing machine of fourteenth embodiment of the invention detected the water level (step S1901) in water jacket 2 before supply washings.In step S1901, by level sensor 20 sensed water level.
The water level detected in step S1901 and designated water level compare (step S1902) by control part 14, when the above-mentioned water level detected is low lower than designated water level, supply water, perform the strokes (step S1903) such as washing, rinsing and dehydration afterwards.In step S1903, control part 14 controls feed water valve 6 makes it supply water.
On the other hand, the water level detected in step S1902 is higher than designated water level, control part 14 runs draining pump 10 makes it discharge washings (step S1904).Afterwards, continue to detect the water level in water jacket 2 by level sensor 20, water level in water jacket 2 before draining setting-up time fully reduces (step S1905), the open feed water valve 6 of control part, to supply washings in water jacket 2, and perform the strokes (step S1903) such as washing, rinsing and dehydration.
On the contrary, in step S1905, water level in water jacket 2 fails fully to reduce and through draining setting-up time, control part 14 is by temperature sensor 18 detected temperatures (step S6), after the temperature detected and fiducial temperature are compared (step S1907), when the said temperature detected is lower than fiducial temperature, the first error message (step S1908) is exported by display part 22, when the said temperature detected is higher than fiducial temperature, export the second error message (step S1909) by display part 22.
On the other hand, in step S1904, also fail the situation (step S1905) of abundant draining after draining setting-up time, the Drainage Division that can be assumed to be because comprising drainage flow path 9, draining pump 10 and/or draining valve 8 is freezed and cannot one in the situation (exporting the second error message) that breaks down of the situation (exporting the first error message) of proper drainage or draining pump 10.
Step S1906 to step S1907 there occurs any situation for recognizing in above-mentioned two situations, if be judged as that in step S1907 the temperature detected in step S1906 is lower than fiducial temperature, just can think and run under the washing machine environmental condition that equitemperature is low in the winter time, control part 14 exports the first error message by display part 22, identify above-mentioned Drainage Division to allow user to there occurs and freeze.Said reference temperature, as the value set by experiment, is when water can there occurs the value freezed to dope in washing machine more than existence with suitable correctness.Preferably, sub-zero value is set as said reference temperature.
On the contrary, the low-down situation of possibility that the temperature that to be judged as detecting in step S1906 in step S1907 is freezed higher than water more than in the high situation washing machine of fiducial temperature can be said, therefore, control part 14 hypothesis causes the reason of abundant draining being the blocking etc. of the fault of draining pump 10, drainage flow path 9 or draining valve 8, and control display part 22 and export the second error message, identify to allow user.
On the other hand, in the present embodiment, why in the running of washing machine, before water supply, perform step S1902, be because when in order to wash or rinsing and there are washings in water jacket 2 before supplying water, utilize this to judge and whether freeze, and be detected as and there occurs when freezing, do not supply washings, thus play and prevent unnecessary water supply effect in advance.
Preferably, control part 14 makes washing machine stop running while being controlled to and exporting corresponding error message in step S1908 or step S1909, and using the output of the specific operation of user or above-mentioned error message as condition subsequent, performs remaining process.
Figure 20 is the precedence diagram of the control method of the washing machine representing the 15th embodiment of the present invention.
With reference to Figure 20, apply power supply to washing machine, after making it bring into operation, before supplying water in water jacket 2, by temperature sensor 18 detected temperatures (step S2001).
The temperature T detected in step S2001 and fiducial temperature T1 compares (step S2002) by control part 14.At this, sub-zero value can be set as fiducial temperature (step S2001).
If be judged as that the temperature T detected in step S2001 is lower than fiducial temperature T1, namely, in subzero situation, the temperature of the air detected by temperature sensor 18 can be considered that washing machine runs under dangerous condition is freezed in existence, therefore, in multiple steps (step S2011 step S2018) afterwards, whether freezing of washing machine is judged.
On the contrary, if be judged as that the temperature T detected in step S2001 is higher than fiducial temperature T1, just judge whether feed water valve 12 or draining pump 10 normally run in multiple steps (step S2021 is to step S2030) afterwards, these processes and judge that the step S2011 to step S2018 whether washing machine freezes is distinguishing.
First, when being judged as the detected value T of temperature sensor 18 lower than fiducial temperature T1 in step S2002, detect the amount of washings, to detect the amount (step S2011) of the washings put in inside groove 3, according to the amount target setting water level of the washings detected, and supply water (step S2012) in water jacket 2.
Afterwards, detect the water level in water jacket 2 by level sensor 20, control part 14 judges whether the detected value W of level sensor 20 in the first setting-up time preset reaches the first designated water level W1(step S2013).At this, the value lower than the target water level set according to the amount of washings in step S2011 can be set as the first designated water level W1.
At this, reach time needed for target water level of setting in step S2011 short value under condition feed water valve 12 normally can run than the water level in water jacket 2 and be set as above-mentioned first setting-up time.
When water level detecting value W fails to reach the first designated water level W1, control part 14 can be judged as failing normal water supply, and water supply is interrupted, and makes washing machine (step S2017) out of service, and makes display part 22 show the 5th error message (step S2018).Above-mentioned 5th error message is used for informing causes washing machine normally to run because freezing.
On the other hand, when being judged as that in step S2013 water level detecting value W reaches the first designated water level W1 in above-mentioned first setting-up time, perform washing (step S2014).Washing (step S2014) is a kind of process making impeller 4 or inside groove 3 rotate the spot removed on washings, and the rotary mode of impeller 4 and inside groove 3 can diversely be arranged.
Draining (step S2015) is a kind of washing (step S2014) complete rear process that washings in water jacket 2 are externally discharged, and is undertaken by draining pump 10.Time draining (step S2015), control part 14 runs draining pump 10.
In the process of draining (step S2015), the water level in water jacket 2 is detected by level sensor 20, after implementing draining (step S2015), control part 14 is judging whether the water level in water jacket 2 have decreased to the second below designated water level W2 (step S2016) in the second setting-up time.
In step S2016, be judged as that the detected value W of level sensor 20 is the situation that the draining undertaken by draining pump 10 fails normally to carry out higher than the situation of the second designated water level W2, the reason of this result is caused to be probably because draining pump 10 there occurs and freezes, therefore, control part 14 makes drain stoppage, make washing machine (step S2017) out of service, and make display part 22 show above-mentioned 5th error message (step S2018).
When being judged as the detected value of level sensor 20 lower than the second designated water level W2 in step S2016, again supply water in water jacket 2, and perform successively rinsing washing materials rinsing (step S2003), inside groove 3 high-speed rotary is transferred dry the dehydration (step S2004) of washings.
On the other hand, when being judged as the detected value T of temperature sensor 18 higher than fiducial temperature T1 in step S2102, step S2021 can be performed to step S2030.Step S2021 to step S2026 is substantially identical to step S2016 with step S2011, but when the detected value W of step S2023 middle water level sensor 20 is lower than the first designated water level W1, control part 14 is judged as failing normal water supply, and water supply is interrupted, make washing machine (step S2027) out of service, and make display part 22 show the 6th error message (step S2028).Above-mentioned 6th error message is used for informing that feed water valve 12 fails normally to run.
And, in step S2026, be judged as that the detected value W of level sensor 20 is the situation that draining fails normally to carry out higher than the second designated water level W2 situation, control part 14 makes drain stoppage, make washing machine (step S2029) out of service, and make display part 22 show the 3rd error message (step S2030).Above-mentioned 7th error message is used for informing that draining pump 10 fails normally to run.
More than illustrate and be, as the method for exporting the 5th error message, the 6th error message or the 7th error message, respective error message is shown by display part 22 in each step of step S2018, step S2028 and step S2030, the display of this normally sense of vision, but unlike, also can be exported by sound output unit such as buzzer (buzzer), loudspeakers (speaker).
Figure 21 is the precedence diagram of the control method of the washing machine representing the 16th embodiment of the present invention.
The power supplier 19 that below will illustrate is for applying or cutting off the power supply (with reference to Fig. 2) supplied to washing machine 100.
With reference to Figure 21, when user puts into washings, and when connecting the power supply of washing machine 100, apply electric power from power supplier 19 to washing machine 100.
User inputs the control instructions such as required washing procedure, wash time, rinsing times, dehydration intensity and book setting by input part 15.Further, user also can make washing machine 100 decide suitable washing methods by the amount detecting washings.
As mentioned above, washing methods one is determined, washing machine 100 just performs the dehydrating stroke (step S2101, step S2102, step S2103) of the washing stroke of spot, the rinsing stroke of rinsing washing materials and the drying washings removing washings successively.
After above-mentioned dehydrating stroke terminates, washing machine 100 stops all operations and is in holding state, to wait for the time that the water of the wall of staying above-mentioned water jacket 2 or inside groove 3 etc. stays.
Standby as above can only be implemented when user inputs instruction separately by input part 15, also can be set to next the straight row of situation do not inputted user.
In the present embodiment, be configured for the button of input standby command at input part 15 separately, if above-mentioned button is in the state of being pressed, washing machine 100 just performs above-mentioned standby always.Such as, if press once above-mentioned button, in the process that washing machine 100 works, control part 14 is judged as have input standby command, and if remove the pressing of above-mentioned button, control part 14 is judged as not having standby command.
Therefore, above-mentioned dehydrating stroke one terminates, and control part 14 just judges whether to have input standby command by input part 15.Now, above-mentioned dehydrating stroke comprises simple dehydration and formal dehydration, and at the end of formal dehydration, control part 14 judges whether to have input above-mentioned standby command (step S2104).
If be judged as have input standby command, control part 14 just stops the operation (step S2105) of all devices such as feed water valve 6, draining pump 10 and drive division 13.
If leave Yu Shuishi at the wall etc. of water jacket 2 or inside groove 3, Yu Shui likely freezes.Therefore, until the water staying the wall of water jacket 2 or inside groove 3 etc. all flows down, stop all operations, and be in holding state.
The above-mentioned standby setting-up time carrying out presetting, whether control part 14 judges in standby period through setting-up time (step S2106).Above-mentioned setting-up time is that the water staying water jacket 2 or inside groove 3 wall all flows down the required time, by experiment etc. presets and stores.
The water flow down to downside in above-mentioned setting-up time is concentrated in above-mentioned drainage flow path 9 or draining pump 10.
If have passed through above-mentioned setting-up time, just drive draining pump 10, remaining water is all discharged (step S2107).
Between drainage period, level sensor 20 detects the water level in water jacket 2.After above-mentioned level sensor 20 sensed water level, as Signal transmissions to control part 14.
Whether control part 14 reaches by the water level that multilevel iudge is detected by level sensor 20 draining preset is terminated water level (step S2108).
If the water level detected by level sensor 20 reaches above-mentioned draining terminate water level, control part 14 stops draining (step S2109) after a set time.At this, owing to reaching at the above-mentioned water level detected after above-mentioned draining terminates water level, still likely there is a small amount of water in draining pump 10, therefore the time of discharging a small amount of water can be set as above-mentioned setting-up time, and above-mentioned setting-up time also can comprise 0.
As mentioned above, if draining stops, being just judged as that the remaining water in washing machine 100 is all discharged, controlling above-mentioned power supplier 19, cut off electric power, powered-down.
As mentioned above, after above-mentioned washing, rinsing and dehydrating stroke all terminate, before being powered-off, guarantee to stay the stand-by time that the remaining current in inside groove 3 and water jacket 2 get off, thus effectively remove the remaining water in washing machine 100, prevent the phenomenon that Yu Shui freezes.
Figure 22 is the precedence diagram of the control method of the washing machine representing the 17th embodiment of the present invention.
With reference to Figure 22, control part 14 carries out washing according to the washing procedure preset, rinsing and dehydrating stroke (step S2201, step S2202, step S2203)
After above-mentioned dehydrating stroke terminates, washing machine performs the stroke (step S2204) untiing washings being used for untiing winding or agglomerating washings equably.
Above-mentioned stroke one end of untiing washings, control part 14 just judges whether user have input the standby command (step S2205) for removing remaining water.
If be judged as have input above-mentioned standby command, control part 14 just stops the operation (step S2206) of all devices such as feed water valve 6, draining pump 10 and drive division 13.
Control part 14 judges whether through above-mentioned setting-up time (step S2207) during all devices are as above out of service.
If be judged as have passed through above-mentioned setting-up time, control part 14 runs draining pump 10, and more than being brought together after being got off by downward effluent, water is all discharged (step S2208).
During discharging remaining water, level sensor 20 sensed water level, control part 14 judges whether the water level detected reaches the discharge level (step S2209) preset.
If be judged as that the water level detected reaches draining and terminates water level, stop the operation (step S2210) of draining pump 10.
As mentioned above, if draining stops, control part 14 is just judged as that the institute's water of having a surplus in washing machine 100 has been discharged, and controls above-mentioned power supplier 19, cuts off electric power, powered-down.
As mentioned above, for perform successively washing, rinsing, dewater and untie washings stroke washing machine for, can above-mentioned untie the stroke of washings after perform standby step for removing remaining water.That is, the most effectively, after all strokes for washing of end, before power supply is about to close, above-mentioned standby step is performed.
In the embodiment of the present invention as above, although limit the ability when user inputs standby command, the situation performing standby is illustrated, and is not limited thereto.Also can be that user only need input a standby command, before user removes again, independently perform standby with the number of run of washing machine always, if the washing machine used under ultra-low temperature surroundings, also can user without the need to inputting separately, before power supply is about to close, perform standby always.
Above, the 16th embodiment of the present invention be described with reference to Figure 21 to Figure 22 removed the situation of remaining water be applicable to close the power supply of washing machine in other embodiments recorded in this description to the 17 embodiment before.At this, wash, rinsing and dehydration in which terminate after can powered-down be all natural.
Figure 23 is the curve map of output voltage change (a) when representing that feed water valve thaws and draining pump output voltage change (b) when thawing.
In the washing machine of one embodiment of the invention, when powering to the various electronic units forming washing machine, detecting the change of the output voltage exported from above-mentioned electronic unit, judging whether freezing of above-mentioned electronic unit.
When powering to the various electronic units forming washing machine, voltage detection department 18(is with reference to Fig. 2) detect the output voltage exported from above-mentioned electronic unit.Below, voltage detection department 17 can be used for the output voltage detecting feed water valve 6, or for detecting the output voltage of draining valve 8, or for detecting the output voltage of draining pump 10.
In more detail, if voltage detection department 17 is for detecting the output voltage of feed water valve 6, just whether freezing of feed water valve 6 is judged according to the variable quantity of the output voltage of feed water valve 6.
If voltage detection department 17, for detecting the output voltage of draining valve 8, just judges whether freezing of draining valve 8 according to the variable quantity of the output voltage of draining valve 8.
If voltage detection department 17, for detecting the output voltage of draining pump 10, just judges whether freezing of draining pump 10 according to the variable quantity of the output voltage of draining pump 10.
On the other hand, control part 14 intercoms with feed water valve 6, draining valve 8 and draining pump 10 phase electrically, therefore, also detects by the change of the output signal applied from feed water valve 6, draining valve 8 and draining pump 10 to control part 14 and whether freezes.
Further, with regard to the washing machine of one embodiment of the invention, according to the circuit structure applying power supply to electronic units such as feed water valve 6, draining valve 8 and draining pumps 10, the variable quantity also by the output current exported from above-mentioned electronic unit judges whether to freeze.
Therefore, although the content below illustrated detects situation about whether freezing according to the variable quantity of the output voltage of feed water valve 6, draining valve 8 and draining pump 10, but in the invention of the application, also can detect the variable quantity of the output current of the electronic units such as feed water valve 6, draining valve 8 and draining pump 10, and judge accordingly whether to freeze.
Further, heater 28 is arranged in water jacket 2, for heated scrub water.Unlike, heater 28 also can be arranged at feed water valve 6, draining valve 8 and draining pump 10.Further, feed water valve 6 or draining valve 8 can use electromagnetic valve.
Shown in Figure 23 be, after open feed water valve 6 supplies water, run draining pump 10 draining, under the state that feed water valve 6 is closed and draining pump 10 is out of service, washing machine is held on for a long time after temperature has been configured to make it freeze in sub-zero chamber (chamber), promote the temperature in chamber, and apply predetermined power supply to feed water valve 6 and draining pump 10, while detect the output voltage (a) of feed water valve 6 and the output voltage (b) of draining pump 10.
As shown in (a) part of Figure 23, the output voltage of feed water valve 6 sharply declines near T1, this is because the washings remained in feed water valve 6 melt near T1 originally.That is, near T1, feed water valve 6 is thawed.At this, Vvalve represents the output voltage values under the state that feed water valve 6 freezes, Vvalve_ref represent feed water valve 6 thaw terminate state under output voltage values, △ Vvalve represents the difference of Vvalve and Vvalve_ref.
Equally, as shown in (b) part of Figure 23, the output voltage of draining pump 10 sharply declines near T2, this is because the washings remained in draining pump 10 melt near T2.That is, near T1, draining pump 10 is thawed.At this, Vpump represents the output voltage values under the state that draining pump 10 freezes, Vpump_ref represent draining pump 10 thaw terminate state under output voltage values, △ Vpump represents the difference of Vpump and Vpump_ref.
At this, why the thawing time T2 of draining pump 10 is longer than the thawing time T1 of feed water valve 6, is feed water valve more than 6 because the amount of washings remaining in draining pump 10 compares.
Variable quantity (the △ Vvalve of output voltage when thawing under can recognizing by Figure 23 the state that feed water valve 6 and draining pump 10 freeze, △ Vpump), but the words of reverse thinking are not difficult to predict, in the process that feed water valve 6 and draining pump 10 freeze, the variable quantity of the output voltage being equivalent to each △ Vvalve and △ Vpump can be detected equally.
Further, although the change of the output voltage of not shown draining valve 8 in Figure 23, draining valve 8 also shows the output voltage similar with (a) part of Figure 23 to be changed.
In the invention of the application, when the various electronic units forming washing machine to feed water valve 6, draining valve 8 and/or draining pump 10 etc. apply predetermined power supply, detect the variable quantity of the output voltage of above-mentioned electronic unit, and when detecting that above-mentioned output voltage reduces more than predetermined value, execution is thawed.
Figure 24 is the precedence diagram of the control method of the washing machine representing the 18th embodiment of the present invention.Be described in more detail with reference to Figure 24
In the present embodiment, detect whether the freezing of washing machine, if detect when freezing, just perform and thaw, thus perform prevent washing machine from freezing antifreeze.
Perform above-mentioned antifreeze by following two kinds of modes.
If the first washing machine does not carry out washing, rinsing or dehydration and be in holding state, just automatically start antifreeze.This has user without the need to the advantage in order to prevent freezing of washing machine from taking measures separately.
The second, as shown in Figure 2, washing machine has can select antifreeze antifreeze selection portion 16, only when user has been undertaken selecting by antifreeze selection portion 16, just starts antifreeze.
Precedence diagram shown in Figure 24 can be applicable to some antifreeze of feed water valve 6, draining pump 8 and draining pump 10 in the same manner, below in order to avoid repeat specification, is described for feed water valve 6.
With reference to Figure 24, in the control method of the washing machine of the present embodiment, supply predetermined power supply to feed water valve 6, detect voltage (step S2401).The output voltage V of feed water valve 6 is detected by voltage detection department 17.
When detecting that the output voltage V of feed water valve 6 decreases more than predetermined value △ V, by display part 22 show be used for signalled washing machine frozen freeze inform display (step S2402, step S2403).Display part 22 can sense of vision or audio ground display freeze to inform display.The former can exemplify the situation that display part 22 is liquid crystal display (LCD), light emitting diode (LED) or diode etc., and the latter can exemplify the situation that display part 22 is buzzer (buzzer) or loudspeaker.
On the other hand, if the variable quantity of output voltage V is less than predetermined value △ V in step S2402, just return to step S1, detect output voltage V.
On the other hand, after display freezes to inform display in step S2403, perform step (step S2404) of thawing.In step of thawing (step S2404), heater 28 can be run and heat to water supply valve feed water valve 6, or when utilizing feed water valve 22 to run from heat release.At this, heater 28 or feed water valve 22 can repeatedly run by predetermined period and interrupt.
At this, as described above, heater is used for heated scrub water (being now preferably heater 28 to be arranged in water jacket 2), or heater can be arranged at feed water valve 6, draining valve 8 or draining pump 10.
In order to directly heat to feed water valve, preferably heater 28 is arranged at feed water valve 6.
On the other hand, as mentioned above, the present embodiment can be applicable to the antifreeze of draining valve 8 or draining pump 10 in the same manner, further, to perform thawing of draining valve 8, preferably heater 28 is arranged at draining valve 8, and to perform thawing of draining pump 10, preferably heater 28 is arranged at draining pump 10.
After step S2404, again detect the output voltage (step S2405) of feed water valve 6, detect that the recruitment of output voltage V is when more than predetermined value △ V, makes heater out of service, and releasing is freezed to inform display (step S2406, step S2407).In step S2405, detected the output voltage V of feed water valve 6 by voltage detection department 17.
On the contrary, if the recruitment of output voltage V is within predetermined value △ V in step S2406, returns to step S2405 and detect output voltage V.
Figure 25 is the block diagram of the control flow of the freezing management system representing one embodiment of the invention.
With reference to Figure 25, the freezing management system of the washing machine of embodiments of the invention comprises washing machine 100, remote adjustment device 200 and communication media, above-mentioned washing machine 100 can carry out wire/wireless communication, above-mentioned remote adjustment device 200 is with closely or remote mode and washing machine 100 receiving and transmitting signal, and above-mentioned communication media is for transmitting the signal between washing machine 100 and remote adjustment device 200.
Whether washing machine 100 can perform the work of washing washings substantially, additionally can also detect inner washings and freeze, and can perform for preventing the work freezed.
Washing machine 100 comprises and freezes test section 110 and control part 14, and the above-mentioned test section 110 that freezes is for detecting whether freezing of washings, and above-mentioned control part 14 is for transmitting to remote adjustment device 200 by the signal freezing test section 110 and detect.
Further, washing machine 100 also comprises the antifreeze portion 120 for preventing washing machine from freezing, and the antifreeze signal that control part 14 receives from remote adjustment device 200 according to washing machine 100 controls the operation in antifreeze portion 120.
Washing machine 100 can have that to freeze in test section 110 and antifreeze portion 120 some, also can have two simultaneously.In the present embodiment, be only limitted to washing machine 100 and there is the situation freezing test section 110 and antifreeze portion 120 be simultaneously described.
Freeze test section 110 and measure temperature in washing machine 100, or confirm waters supply/draining degree, to control part 14 transmission information, thus control part 14 detection is freezed.
Freeze test section 110 and comprise temperature sensor 18 and level sensor 20, said temperature sensor 18 is for measuring air themperature in washing machine 100 or temperature of washing water, and above-mentioned level sensor 20 is for measuring the water level in washing machine 100.
Washing machine 100 comprises the water jacket 2 that washings are housed, and temperature sensor 18 is configurable in water jacket 2.When water jacket 2 makes temperature sensor 18 be immersed in washings built with washings more than predetermined water level, temperature sensor 20 can detect the temperature of washings, in addition to the above, can detect the temperature of the air in washing machine 100.
Further, washing machine 100 also comprises input part 15, and user inputs the various instructions about washing machine 100 overall operation by above-mentioned input part 15.Certainly, input part 15 directly can input for user and whether freeze or antifreeze request instruction for detecting.
Antifreeze portion 120 utilizes heater 28 or other electronic units to heat inner air or washings, thus prevents washings from freezing.Heater 28 is configurable in the bottom of water jacket 2, for heated scrub water, also configurable in the various structure members forming washing machine 100, prevents freezing of various structure member for heating.
Further, can also in washing machine 100 built-in services device (not shown), above-mentioned server is received and sent messages by telephone wire or internet.
Remote adjustment device 200 comprises mobile phone, computer, phone etc.Remote adjustment device 200 can receive whether freezing of the washings detected in washing machine 100 and show, or sends antifreeze signal to washing machine 100.
Remote adjustment device 200 comprises input part 210, display part 220 and microcomputer 230, above-mentioned input part 210 confession user inputs the request instruction whether relevant washings freeze to detect, above-mentioned display part 220 shows whether freezing of washings for sense of vision or audio, above-mentioned microcomputer 230 with signal form to communication network 150 described later transmit instruction that input part 210 is inputted or by the Signal aspects that receives from internet 150 at display part 220.
Above-mentioned communication media refers to the communication network 150 performing data communication between washing machine 100 and remote adjustment device 200.Communication network 150 can use power line communication medium or radio communication medium.Washing machine 100 and remote adjustment device 200 not only closely, at a distance, are are also suitably received and sent messages by communication network 150.
Figure 26 is the precedence diagram freezing the first embodiment of management method representing washing machine.
With reference to Figure 26, user, when going out or travel, also wishes detect in the washing machine 100 in getting home whether freeze.In the case, user freezes to detect instruction (step S2601) by input part 210 input of the above-mentioned remote adjustment device 200 carried with.
When input part 210 be have input freeze to detect instruction time, the microcomputer of remote adjustment device 200 freezes to detect after instruction map is signal by above-mentioned, is transferred to communication network 150.Communication network 150 freezes detection signal (step S2602) to washing machine 100 transmission.
The control part 14 of washing machine 100 utilizes and freezes test section 110, judges whether freezing (S2603) of the washings in washing machine.The method whether freezed detecting washings can diversely be suitable for.
Such as, if the temperature of the temperature sensor 18 utilizing temperature sensor 18 to detect is below predetermined temperature, just can be judged as that washings are frozen.Further, by feed water valve 6 water supply start, until reach predetermined water level, draining pump 10 draining is run afterwards.Between drainage period, level sensor 20 sensed water level is utilized to change.Even if water discharge time is through setting-up time, also fail abundant draining when, look in the drain assembly that is judged as comprising draining pump 10 there occurs and freeze, and there is no proper drainage (step S2603).
Utilize as above freeze detection method, control part 14 judges whether freezing in washing machine 100, and freezing of obtaining thus is judged that signal utilizes communication network 150 to be transferred to remote adjustment device 200(step S2604).
The microcomputer 230 of remote adjustment device 200 demonstrates by display part 220 freezing of utilizing internet 150 to receive and judges signal (step S2605).
If show the information about whether freezing by display part 220, user also can understand at a distance whether freezing of washing machine in family.If when demonstrating frozen, user can take appropriate measures rapidly, thus reduces the fault of the parts such as drain assembly.
Figure 27 is the precedence diagram freezing the second embodiment of management method representing washing machine.
With reference to Figure 27, user, when going out or travel, also wishes to detect whether freezing in the washing machine 100 in getting home.In the case, user freezes to detect instruction (step S2701) by input part 210 input of the above-mentioned remote adjustment device 200 carried with.
When input part 201 be have input freeze to detect instruction time, the microcomputer of remote adjustment device 200 freezes to detect after instruction map is signal by above-mentioned, is transferred to communication network 150.Communication network 150 freezes detection signal (step S2702) to washing machine 100 transmission.
The control part 14 of washing machine 100 utilizes and freezes test section 110 to judge whether freezing (step S2703) of washings in washing machine.Utilize freeze that test section 110 carries out to freeze detection method identical with the first above-mentioned embodiment, therefore, omission related description.
Control part 14 judges whether freezing in washing machine 100, and freezing of obtaining thus is judged that signal utilizes communication network 150 to be transferred to remote adjustment device 200(step S2704).
The microcomputer 230 of remote adjustment device 200 demonstrates by display part 220 freezing of utilizing internet 150 to receive and judges signal (step S2705).
User sees the information shown by display part 220 of remote adjustment device 200, performs antifreeze operation if want, inputs antifreeze signal (step S2706) by input part 210.
When have input antifreeze signal to input part 210, microcomputer 230 transmits antifreeze signal by communication network 150 to washing machine 100.
The washing machine 100 receiving antifreeze signal performs antifreeze operation by antifreeze portion 120.In order to antifreeze and work that is that carry out can diversely be suitable for.
Such as, open feed water valve 6 and supply water until after reaching predetermined water level, utilize heater 28 heated scrub water to improve temperature, thus prevent from freezing.Further, certainly can also prevent various structure member from freezing by the heater 28 operating in the various structure members settings forming washing machine.Till the operation of heater 28 can continue until the temperature that the temperature detected by temperature sensor reaches predetermined, also can continue until moment of bringing into operation from heater 28 to through setting-up time (step S2708).
If antifreeze end of run as above, control part 14 just transmits end of run signal (step S2709) by communication network 150 to remote adjustment device 200.
Remote adjustment device 200 demonstrates received end of run signals step S2710 by display part 220).
User identifies the content of display on display part 220, just can go out relievedly or travel.
Figure 28 is the precedence diagram freezing the 3rd embodiment of management method representing washing machine.
With reference to Figure 28, user closely or at a distance, with washing machine freeze independently, when wanting to carry out for antifreeze work, input antifreeze instruction (step S2801) by the input part 210 of remote adjustment device 200.
After inputting antifreeze instruction, microcomputer 230 transmits antifreeze signal (step S2802) by communication network 150 to washing machine 100.
The control part 14 receiving the washing machine 100 of antifreeze signal utilizes antifreeze portion 120 to perform antifreeze operation (step S2803).
About the detailed content of antifreeze operation is identical with the second above-mentioned embodiment, therefore omit related description.
If antifreeze end of run, control part 14 just transmits end of run signal (step S2804) to remote adjustment device 200.
Remote adjustment device 200 can demonstrate received end of run signal (step S2805) by display part 220.

Claims (15)

1. a control method for washing machine, is characterized in that, comprises the following steps:
Step a, before supply washings, if the water level of the inside of water jacket just performs draining more than designated water level;
Step b, if the draining required time in above-mentioned steps a is more than setting-up time, just compares the temperature of the inside of washing machine and fiducial temperature; And
Step c, in above-mentioned steps b, if the temperature of the inside of washing machine is lower than said reference temperature, just exports the first error message.
2. the control method of washing machine according to claim 1, it is characterized in that, above-mentioned steps a comprises step a-1, in above-mentioned steps a-1, if the water level of the inside of above-mentioned water jacket just performed draining higher than the first designated water level before the stroke of washing machine starts, above-mentioned first designated water level occurs to overflow and the designated water level of setting to judge whether.
3. the control method of washing machine according to claim 2, it is characterized in that, above-mentioned steps b comprises step b-1, if the water level of the inside of above-mentioned water jacket does not reach the second designated water level in the first draining setting-up time in above-mentioned steps a-1, then in above-mentioned steps b-1, the temperature of the inside of washing machine and the first fiducial temperature are compared;
If the temperature of the inside of washing machine is lower than the first fiducial temperature in above-mentioned steps b-1, then export above-mentioned first error message in above-mentioned steps c.
4. the control method of washing machine according to claim 2, is characterized in that, above-mentioned steps a-1 also comprises:
When the water level of the inside of above-mentioned water jacket is higher than above-mentioned first designated water level, export the step of the second error message;
When the water level of the inside of above-mentioned water jacket reaches the second designated water level in the first draining setting-up time, interrupt the step of the output of above-mentioned second error message.
5. the control method of washing machine according to claim 4, is characterized in that, above-mentioned second error message is for informing that above-mentioned water jacket there occurs the information of spilling.
6. the control method of washing machine according to claim 3, is characterized in that, above-mentioned first error message is that the Drainage Division that the washings for informing for the inside by above-mentioned water jacket are externally discharged there occurs the information freezed.
7. a control method for washing machine, is characterized in that,
Comprise the following steps:
Step a, before the internal feed washings to water jacket, if the water level of the inside of above-mentioned water jacket just performs draining higher than the first designated water level, above-mentioned first designated water level overflows and the designated water level of setting to judge whether there occurs;
Step b, if after above-mentioned steps a, the water level of the inside of above-mentioned water jacket just performs draining higher than the second designated water level, and above-mentioned second designated water level is lower than above-mentioned first designated water level;
Step c, if the time in above-mentioned steps b needed for draining to predetermined water level is greater than predetermined draining setting-up time, just compares the temperature of the inside of washing machine and predetermined fiducial temperature; And
Steps d, if the temperature of the inside of washing machine is lower than above-mentioned predetermined fiducial temperature in above-mentioned steps c, just exports the first error message.
8. the control method of washing machine according to claim 7, is characterized in that, in above-mentioned steps c, if the temperature of the inside of washing machine is higher than above-mentioned predetermined fiducial temperature, just exports the 3rd error message.
9. a control method for washing machine, is characterized in that,
Comprise the following steps:
Step a, to water jacket private water supply before detected temperatures;
Step b, to the private water supply of above-mentioned water jacket;
Step c, detects the water level of the inside of above-mentioned water jacket; And
Steps d, if the temperature detected in above-mentioned steps a is lower than fiducial temperature and the water level of the inside of above-mentioned water jacket cannot reach the first designated water level in the first setting-up time, just exports the 5th error message.
10. the control method of washing machine according to claim 9, is characterized in that, said reference temperature is set as subzero value.
The control method of 11. washing machines according to claim 9, is characterized in that, above-mentioned steps d also comprises the step stopping washing machine running.
The control method of 12. washing machines according to claim 9, it is characterized in that, also comprise the steps:, if the temperature detected in above-mentioned steps a is higher than said reference temperature and the water level of the inside of above-mentioned water jacket cannot reach the first designated water level in above-mentioned first setting-up time, just to export the 6th error message.
The control method of 13. washing machines according to claim 9, is characterized in that, also comprise step e, in above-mentioned steps e, detects the amount of the washings of the inside having put into sink before above-mentioned steps b;
The target water level of the water supply in above-mentioned steps b is set according to the amount of the washings detected in above-mentioned steps e;
With the situation of normal water supply in above-mentioned steps b for benchmark, the first setting-up time in above-mentioned steps d is set as reach time needed for above-mentioned target water level short value than the water level of the inside of above-mentioned water jacket.
The control method of 14. washing machines according to claim 13, is characterized in that, further comprising the steps of:
Step f, if the water level of the inside of above-mentioned water jacket reaches above-mentioned target water level, just interrupts supplying water and performing washing;
Step g, discharges the washings of the inside of above-mentioned water jacket;
Step h, in the process of the washings of the inside of the above-mentioned water jacket of discharge, detects the water level of the inside of water jacket; And
Step I, if the water level detected in above-mentioned steps h does not reach below the second designated water level in the second setting-up time, just exports above-mentioned 5th error message.
The control method of 15. washing machines according to claim 14, is characterized in that, if the water level detected in above-mentioned steps h reaches below the second designated water level in above-mentioned second setting-up time, just exports the 7th error message.
CN201180035580.2A 2010-07-06 2011-07-06 The control method of washing machine and the freezing management system of washing machine Expired - Fee Related CN103025945B (en)

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KR10-2010-0065049 2010-07-06
KR1020100065049A KR101689719B1 (en) 2010-07-06 2010-07-06 A control method of the washing machine
KR1020100073609A KR101711836B1 (en) 2010-07-29 2010-07-29 A freezing control system of washing machin
KR1020100073613A KR20120011639A (en) 2010-07-29 2010-07-29 A laundry treatment machine and the control method of the same
KR10-2010-0073609 2010-07-29
KR10-2010-0073613 2010-07-29
KR10-2010-0074238 2010-07-30
KR1020100074239A KR101774808B1 (en) 2010-07-30 2010-07-30 A washing machine
KR10-2010-0074242 2010-07-30
KR1020100074238A KR20120012213A (en) 2010-07-30 2010-07-30 A controlling method of the washing machine
KR10-2010-0074239 2010-07-30
KR1020100074242A KR20120012217A (en) 2010-07-30 2010-07-30 A washing machine and controlling method of the washing machine
KR10-2011-0066987 2011-07-06
PCT/KR2011/004950 WO2012005514A2 (en) 2010-07-06 2011-07-06 Method for controlling the operation of a washing machine, and system for controlling freezes for a washing machine
KR1020110066987A KR20130005531A (en) 2011-07-06 2011-07-06 Control method of washing machine

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