CN106937851A

CN106937851A - Dishwasher and its control method

Info

Publication number: CN106937851A
Application number: CN201710004516.7A
Authority: CN
Inventors: 金胜勋; 禹相宇; 金日焕
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2016-01-04
Filing date: 2017-01-04
Publication date: 2017-07-11
Also published as: EP3187089B1; WO2017119669A1; AU2016385329A1; US20170188778A1; EP3187089A1; KR20170081473A; AU2016385329B2

Abstract

Disclose dishwasher and its control method.A kind of control method of dishwasher includes：Main wash cycle, one or more of staving washing object is maintained at for washing；Rinse cycle, the washing object washed in main wash cycle is rinsed in by jet cleaning water；Normal drying cycle, the washing object rinsed for drying in rinse cycle, wherein main wash cycle includes：Pre- steam water supply step, for supplying steam to staving by steam water supply to water leg；Pre- steam supplied, for producing steam by being heated to heater and steam being supplied into staving；Main washing water supply step, in the case where not discharging the steam water for being provided to water leg water leg will to be supplied to for the washings of washing；Main washing step, for washing multiple washing objects by making the washing water circulation of supply；And main washings discharge step, for discharging washings.

Description

Dishwasher and its control method

Technical field

Embodiment of the disclosure is related to a kind of dishwasher and its control method.

Background technology

Usually, dishwasher be it is a kind of be configured to by dishes jet cleaning water from dishwasher is maintained at The electrical equipment of one or more wash the dishes object or dishes removal swill or foreign substance.

Traditional dishwasher includes the housing for limiting outward appearance；The staving of scrubbing space is provided to dishes；It is arranged on staving In and wherein keep washing object one or more shelf；For the spray arm to shelf jet cleaning water；Storage The water leg of washings；And the washings stored in water leg are supplied to the pump of spray arm.

Traditional dishwasher can be washed by supplying hot washing water or steam to washing object or dishes or Person sterilizes to come to washing object or dish washing or sterilization to them.

The generally heating of traditional dishwasher is stored in the washings in water leg, with using being arranged in water leg plus Hot device produces hot water, or produces steam using the auxiliary steam generator being disposed therein.

In addition, traditional dishwasher includes：It is arranged in the side surface of staving and is sprayed with the steam that steam is supplied to staving Mouth；With the steam hose that steam jet and steam generator are connected to each other.In this case, adversely can not be by washing pair The front portion of elephant is exposed to the steam for the washing object for being only provided to the both sides for being placed in shelf.

In addition, steam is only injected into the washing object for the side region for being placed in shelf, and it can not adversely be injected into It is placed in the washing object of the central area of shelf.

Further, steam only is supplied by the side surface of staving, and it is empty to there is the washing that can not be formed in staving Between in realize uniform temperature distribution further drawback.

Further, traditional dishwasher has the algorithm for being configured to implement after rinse cycle final rinse cycle, So improving dishes temperature by spraying heated hot washing water via spray arm.Washings from hot dishes surface evaporation, And dishes is oven-dried.Adversely increased in final rinse cycle however, being provided to the amount of the hot washing water of dishes.

The content of the invention

Thus, the purpose of embodiments of the invention is to solve above and other problem.The disclosure aims at offer The dishwasher and its control method of a kind of washing object that steam can be even supplied to the front portion for being placed in shelf or rear portion.

The disclosure it is another aim at offer it is a kind of drying washing object when need not use the dishwasher of too many water And its control method.

The further object of the disclosure be provide it is a kind of be capable of supply that steam with dry washing object dishwasher and its Control method.

The further object of the disclosure be provide it is a kind of can by supply steam dipping be bonded at it is outer on washing object Carry out the dishwasher of material or swill.

The further object of the disclosure is to provide a kind of can be removed by only supplying the hot water without dishwashing liquid outside Carry out the dishwasher and its control method of material or swill.

The further object of the disclosure is that offer is a kind of can prevent overheat simultaneously by using the residual heat of heater And save the dishwasher and its control method of energy.

The further object of the disclosure be provide it is a kind of can reduce washing washing object needed for water and washing The dishwasher and its control method of duration.

The further object of the disclosure is to provide caused by a kind of foreign substance for being prevented from remaining in pump to pump The dishwasher and its control method of the damage of heater.

The further object of the disclosure be provide it is a kind of can wash for a long time without using and with one of dust or The dishwasher and its control method of the multiple dishess of person.

In order to realize these targets and further advantage and according to the mesh for the embodiment for embodying and being broadly described herein , a kind of control method of dishwasher includes：Main wash cycle, main wash cycle is used to wash one be maintained in staving Or multiple washing objects；Rinse cycle, rinse cycle, which is used to be rinsed in by jet cleaning water in main wash cycle, washs Washing object；Normal drying cycle, normal drying cycle is used to dry the washing object rinsed in rinse cycle, wherein main Wash cycle includes, pre- steam water supply step, pre- steam with water supply step by pre- steam water supply to water leg, with Just steam is supplied to staving；Pre- steam supplied, pre- steam supplied is used to produce steam by heating heater And steam is supplied to staving；Main washing water supply step, main washing water supply step is used to be provided to collection not discharging The steam of tank supplies washing water into water leg with the case of water；Main washing step, main washing step is used for by making confession The washing water circulation answered wash it is multiple washing objects main washing steps；And main washings discharge step, main washings row Going out step is used to discharge washings.

It is likely less than in pre- steam with the steam supplied in water supply step with the amount of water in main washing water supply step The amount of the washings of supply.

Meanwhile, dishwasher includes pump, and the washing water pump being stored in water leg is delivered to spray arm by the pump；Pump is heated Device, the pump heater is arranged in pump and heats washings；And steam outlet openings, the steam outlet openings are arranged on pump In and discharge steam.

In this example, it can be gone out in pre- steam with the water level for the pre- steam water supplied in water supply step less than steam Oral pore.

The water level for the washings supplied in main washing water supply step can be higher than steam outlet openings.

Pre- steam supplied can include being used for supplying steam from the front side of staving by using the first steam jet First steam step.

Pre- steam supplied can include being used to come by using one or more spray arm being arranged in staving Supply the 3rd steam step of steam.

Main wash cycle can be towards the washings that be mixed with dishwashing liquid of washing object injection, and the control method can be with It is used to pre-wash circulation to the washings that washing object injection is not mixed with dishwashing liquid before being included in main wash cycle.

The control method of dishwasher may further include the steam drying circulation after rinse cycle, the steam drying Circulation includes：Steam water supply step is dried, drying steam water supply step is used to supply drying steam water to dry Dry cleaning object；With drying steam supplied, drying steam supplied is used to supply steam to staving.

Pre- steam water supply step or drying steam water supply step can include：First water supply step, the One water supply step is used to supply washing water into pump to wash water leg and pump；With the first discharge step, the first discharge step The rapid washings for being used to discharge supply.

The control method of dishwasher may further include the first circulation step before the first discharge step, for leading to Pump of overdriving makes washings in water leg and pump inner loop and the inner space for washing water leg and pump.

The control method of dishwasher may further include for being used in rear supplied to water leg of the first discharge step The second water supply step of the steam water of steam is produced, wherein the first discharge step discharge is supplied in the first water supply step All washings.

First discharge step can discharge the washings for the scheduled volume supplied in the first water supply step, and by making Steam is produced with remaining washings.

The control method of dishwasher may further include, for the option program before main wash cycle or to selection Program addition steam option program/option selection step.

Even if when selecting non-steam program, by selecting the option for steam in selecting step in program/option Steam can be supplied.

When selecting steam procedures in program/option selection step, steam procedures can not realized and by main washing Circulation, rinse cycle, steam drying circulation and supply steam normal drying cycle construction form.

When select steam drying program when, steam drying program can be implemented and by main wash cycle, rinse cycle, The steam drying circulation of supply steam and normal drying cycle construction are formed.

Thus, embodiment has following advantageous effects.Dishwasher can be even anterior or rear portion wash to shelf is placed in Wash object supply steam.

In addition, the dishwasher need not use too many water in drying washing object.

Further, the dishwasher is capable of supply that steam to dry washing object.

Further, the dishwasher can remove foreign substance or food by only supplying the washings without dishwashing liquid Thing residue.

Further, the dishwasher can prevent from overheating and saving energy by using the residual heat of heater.

Further, the dishwasher can reduce washing washing object needed for water and washing the duration.

Further, the dishwasher is prevented from remaining in the damage to pump heater caused by the foreign substance in pump.

Further, the dishwasher can wash for a long time without and with dust one or more dishes.

The further scope of the practicality of the present invention is readily apparent that by detailed description given below.Though however, it should be understood that The preferred embodiments of the present invention are so indicated, but are described in detail with particular example only as illustrating what is provided, because this area Technical staff is readily apparent that various change and modification in the spirit and scope of the present invention from this detailed description.

Brief description of the drawings

Only provide by detailed description given below and illustratively thus do not limit accompanying drawing of the invention, will more fill Ground is divided to understand the present invention, wherein：

Fig. 1 is the perspective view for an example for showing the dishwasher according to the disclosure；

Fig. 2 is the sectional view for showing dishwasher example；

Fig. 3 is the block diagram of the control method for the dishwasher for showing one embodiment according to the disclosure；

Fig. 4 is to show to supply steam water in the control method according to the dishwasher of one embodiment to produce the side of steam The block diagram of method；

Fig. 5 is the square frame for showing the steam refresh course provided in the control method of dishwasher according to another embodiment Figure；And

Fig. 6 is the several embodiments for showing program and option for the control method of the dishwasher according to the disclosure Figure.

Embodiment

Refer to the attached drawing, will be described in detail the exemplary embodiment of the disclosure of one embodiment according to the disclosure.It is right The term that this paper structure and control method is used only intentionally promote this specification explanation, and term be not intended in itself to Go out any certain sense or function.In the disclosure, generally eliminated in well known to those skilled in the art to simplify Hold.

Unrelated with reference, identical or equivalent elements can have identical reference, and will not repeat it Explanation.Illustrate in order to which refer to the attached drawing simplifies, the size and profile of the element shown in accompanying drawing can be exaggerated or reduce, and It should be understood that set forth herein device or the embodiment of control method be not limited by the accompanying figures.

Embodiment of the disclosure is related to a kind of be configured to before staving or the dishwasher of steam is sprayed on rear surface.Figure 1 is the perspective view for an example for showing the dishwasher according to the disclosure, and Fig. 2 is the section for the example for showing dishwasher Figure.

As shown in figs. 1 and 2, dishwasher 100 can include casing 1；Be arranged in casing 1 and accommodate one or The staving of multiple washing objects or dishes；To one or more injection of one or more washing object jet cleaning water Arm 711,713；Wherein keep the water leg 3 of washings；With the door for opening and closing the opening 11 formed in casing 1 13。

Casing 1 limits the exterior design of dishwasher, and the opening 11 connected including the inner space with staving 2.

Staving 2 be included therein the scrubbing space 21 to be formed and be arranged in scrubbing space 21 one or more Shelf.Shelf can include being arranged on upper shelf 23 in staving top, and put under being arranged under shelf 23 Frame 25.

The door 13 that staving 2 is attached to a surface of casing is opened and closed.Open door 13 with open staving 2 it Afterwards, user can move forward upper shelf 23 or lower shelf 25 from staving 2.

When shelf include upper shelf 23 and lower shelf 25 when, spray arm 711,713 and 715 can include from upper shelf 23 it Under bottom jet cleaning water upper arm 711；From the underarm 713 of the bottom jet cleaning water of lower shelf；And from upper shelf 23 On top jet cleaning water top arm 715.

It can be collected in water leg 3 from the washings that spray arm 711,713 and 715 is sprayed to washing object.

Water leg 3 includes being arranged under staving to store the storage unit 31 of washings.Removed from washing object Foreign substance or swill are blended in the washings stored in storage unit 31.

Water leg 3 includes being arranged on groove lid 33 of catchmenting at the top of it, and groove lid 33 of catchmenting is by water leg 3 and staving 2 Separation.In this case, groove lid of catchmenting 33 can include collecting hole 331, and collecting hole 331 is used to make the scrubbing space of staving 2 11 connect with the storage unit 31 of water leg 3.

Meanwhile, water leg 3 is connected to water supply source (not shown) by water supply path 311.Water supply path 311 can be with Opened and closed by the water supply valve 312 that can be controlled by controller (not shown).When water supply valve 312 is opened, water is passed through Water supply path 311 is supplied to the inner space of water leg 3, i.e. storage unit 31.

The washings being stored in water leg 3 are discharged pump 314 and discharge dishwasher by discharge path 313.Discharge path Footpath 313 is connected with the downside surface or basal surface of water leg 3, and washings are discharged from storage unit 31.

The pump 8 that the water being stored in water leg 3 is described below is supplied to spray arm through the first water supply path 731 711st, 713 and 715.Pump 8 and top arm 715 are connected to each other by the first water supply path 731.First water supply path 731 through It is arranged on after the basal surface of staving 2 in staving 2, and the top of staving 2 is connected to along a side surface of staving 2 Portion.

Upper arm 711 is connected to the 3rd water supply path 735 from the branch of the first water supply path 731, and can be revolved It is attached to the one end in the 3rd water supply path 735 with turning.Upper arm 713 is rotationally attached to the basal surface that penetrates staving 2 Second water supply path 733, and the second water supply path 733 is from the branch of 8 or first water supply path of pump 731 so as to be supplied Answer washings.

Meanwhile, according to the illustrated example of the dishwasher 100 of the disclosure include be used for by washings be supplied to spray arm 711, 713 and 715 pump 8.

Pump 8 can include：It is fixed on the body 82 in casing 1；The inner space of body is divided into first chamber (C1) and second chamber (C2) water leg partition wall 84；It is arranged in water leg partition wall 84 and makes first chamber (C1) The intercommunicating pore 86 communicated with each other with second chamber (C2)；The import 841 that water leg 3 and first chamber (C1) are connected to each other；Will The washing outlet holes 845 that second chamber (C2) and the first water supply path 731 are connected to each other；It is arranged on second chamber (C2) In impeller 85；And it is arranged on the heater assembly (H) in the basal surface of first chamber.

Pump 8 is connected by access path 35 with water leg 3, and access path 35 is connected to and formed in water leg 3 Storage unit 31 side surface lower end, and be connected to the import 841 of pump 8.

The basal surface of heater assembly (H) formation first chamber (C1), and the example of dishwasher can be including that can hold Row washings heating function and the pump of washings circulatory function 8.

Heater assembly (H) can include being exposed to first chamber (C1) and then the pump of directly contact washings adds Hot device 83.Alternatively, heater assembly (H) can include the heater pump 83 being arranged in heater housings 833, and Heater housings 833 can form first chamber (C1) basal surface, be configured to permit so heater assembly (H) can have Perhaps water leg heater 83 contacts the heat to heater housings in the case where being not directly contacted with washings and heater housings 833 833, so that the structure heated to washings.In this case, heater housings 833 can be by conductive material, such as metal It is made, make it that heat energy is effectively transmitted.

85, impeller is used to making to be increased to the washings of second chamber (C2) towards washing water out from first chamber (C1) The effect for the device that hole 845 is moved, and impeller 85 can be arranged on the impeller-driven unit 87 of body exterior and rotate.

Impeller-driven unit 87 can include：It is arranged on the motor 871 on second chamber (C2) top；With pass through pump 8 are connected to the axle 873 of impeller 85.

The illustrated example of dishwasher 100 can be by steam supplied to washing object, to improve detersive efficiency.

Traditional dishwasher only from the side surface of staving only to two side regions for being placed in shelf washing object integrally Spray steam.

In order to overcome these shortcomings, according to the dishwasher of the disclosure include be arranged in door 13 and towards washing object Spray the first steam jet 42 of steam.

In this case, dishwasher steam can be equably sprayed to the washing object being placed in scrubbing space or Dishes, and steam jeting effects are provided to all washing objects, and non-steam injection concentrates on and is disposed only on some of both sides and washes Wash the effect of object.

First steam jet 42 can be arranged on the bottom of door 13, special so as to using by the characteristic of the vapours of generation It is not the bottom that steam is not only supplied to scrubbing space, and is also supplied to top.Thus, the temperature rise energy of washing object Enough it is maximized.The injection direction of first steam jet 42 is inclined upwardly.That is, the injection direction of the first steam jet 42 is towards putting Washing object in upper shelf 23, or the other washing objects being placed in lower shelf 25.Will be from the first steam jet 42 The steam of injection injects directly to washing object.

It can also set and be connected to the first steam path 44 of the first steam jet 42 to supply steam.First steam road Footpath 44 is arranged on outside staving 2.In other words, it is not connected in staving 2 for supplying the first steam path 44 of steam The first steam jet 42.

First steam path 44 can be configured to the flexible pipe that rubber or plastics are made, and opens and closes to resist door 13 The distorting stress produced when closing.

First steam path 44 is connected to pump 8, and supplies steam using the pump heater 83 being arranged in pump 8.

Heater assembly (H) is arranged in first chamber (C1) basal surface, and the washings of scheduled volume are supplied To first chamber (C1).Afterwards, pump heater 83 runs to produce steam.Steam (vapor) outlet 843 is arranged on first chamber (C1) In to discharge steam from first chamber (C1), and steam (vapor) outlet 843 is connected to the first steam path 44.

Steam (vapor) outlet 843 is equipped with the predetermined altitude of the basal surface from first chamber (C1).According to the He of steam (vapor) outlet 843 Height between first chamber (C1) is determined to the amount of the steam produced in first chamber (C1).If gone out higher than steam Supplying washing water on the water level of mouth 843, then can not be emitted on the steaming produced in first chamber (C1) by steam (vapor) outlet 843 Vapour.That is, steam (vapor) outlet 843 can not be become to be above with the water level for the water for producing steam by being provided to first chamber (C1).

Simultaneously, although the embodiment that open steam (vapor) outlet 843 is arranged in first chamber (C1) has been described, but steams Vapor outlet 843 can be arranged in second chamber (C2).Although producing steam in first chamber (C1), steam passes through Intercommunicating pore 86 is inhaled into second chamber (C2), because steam has the characteristic moved up, is then put through second chamber (C2) steam (vapor) outlet 843 set in is supplied to the first steam jet 44.

The structure for being configured to that steam is sprayed from the rear surface of staving is described below.

Dishwasher can include：It is arranged in the rear surface of staving 2 and sprays the second of steam towards washing object Steam jet 43；With the second steam path 45 for supplying steam to the second steam jet 43.

Second steam jet 43 can removably be attached to the first water supply path 731.

Second steam jet 43 can be arranged in the rear surface 27 of staving 2, preferably the bottom on the rear surface of staving 2 (side lower part).Because steam has the characteristic moved up, especially for the Zone Full of supply scrubbing space.Second Steam jet 43 can be tilted upwardly toward washing object, and be configured to directly to washing object supply steam, to have Effect ground removes foreign substance or swill.

Second steam path 45 is arranged in staving 2 and penetrates the basal surface of staving 2.Second steam path 45 is connected It is connected to the steam (vapor) outlet 843 (or the steam (vapor) outlet being arranged in second chamber) being arranged in the first chamber of pump (C1). Alternatively, the second steam path 45 is from the branch of the first steam path 44, so as to be connected to steam (vapor) outlet 843.Transfer valve 444 Be arranged in component, so as to adjust be provided to the first steam path 44 or the second steam path 45 quantity of steam or Person's unlatching/steam off supply.

Meanwhile, dishwasher can use spray arm 711,713 and 715 to replace the first steam jet or the second steam jet Steam is supplied to staving by 43.The steam produced by using heater assembly (H) in first chamber (C1) can be allowed to The operation of the characteristic or impeller 85 moved up is intended to by steam and passes through the first water supply path 731 and the confession of the second water Path 733 is answered, and staving is then provided to by spray arm 711,713 and 715.

Fig. 3 is the block diagram of the control method for the dishwasher for showing one embodiment according to the disclosure.

With reference to Fig. 3, the control method of the dishwasher of one embodiment according to the disclosure is described below.

According to the control method of the dishwasher of one embodiment include main wash cycle (D300), rinse cycle (S400) and Normal drying cycle (S600).

In main wash cycle (S300), the washing object or dishes being maintained in staving 2 are washed, and are remained Foreign substance or swill on washing object are removed.That is, the washings mixed with dishwashing liquid by towards washing pair As injection so as to wash.

Main wash cycle (S300) includes：For steam water (to be referred to being supplied to water leg to produce steam Water) supplied to water leg 3 so as to by steam supplied to staving 2 pre- steam with water supply step (S322)；For passing through heating Pump heater 83 produces steam and steam is supplied to the pre- steam supplied (S324) of staving 2；For not discharging quilt Supplied to the steam of water leg 3 with water leg 3 is supplied washing water into the case of water to wash the main washings of object Supply step (S342)；For by making the main washing water spray step of supplied washing water circulation and washing object (S344)；And discharge step (S346) for the main washings for discharging washings.

In other words, main wash cycle (S300) is by the pre- steam step (S320) for supplying steam；With main purge step Suddenly (S340) is constituted.Pre- steam step (S320) includes pre- steam water supply step (S322) and pre- steam supplied (S324).Main washing step (S340) includes main washing water supply step (S342), main washing water spray step (S344) and master Washings discharge step (S346).

In pre- steam with water supply step (S322), water supply valve 312 is opened, by steam water supply to water leg 3, and steam water is supplied to water leg 3 by water supply path 311.Then, it is provided to the steam water of water leg 3 The first chamber (C1) of pump 8 is supplied to by access path 35.

It is less than in pre- steam with the amount of the steam water of supply in water supply step (S322) in main washing water supply step The amount of the washings of middle supply.This is to produce a small amount of steam.If supplying too many water, the consuming long time passes through heating Pump heater 83 and aqueous phase is changed into steam.Similarly, before main washing step (S340) is performed, steam is provided to washing Object, to obtain the effect that dipping remains in the foreign substance or swill that wash on object.Now, substantial amounts of steam It is unnecessary.

Pump heater 83 is arranged in water leg 8.In order to which the steam that will be produced by heated pump heater 83 is arranged Put to pump 8, pump 8 includes steam outlet openings 843.

In this case, it is less than steam outlet openings 843 with the water level of supply in water supply step (S322) in pre- steam. If steam is provided to the water level higher than steam outlet openings 843 with water, pump 8 can not be emitted on by steam outlet openings 843 The steam of middle generation.

Thus, when the height from steam outlet openings 843 to the inner bottom part of pump 8 is referred to as " H ", in pre- steam water supply The water level of the steam water of supply is less than " H " in step (S322).

When the internal volume by experimental calculation pump 8 during water level to determine steam water, regulation water supply valve 312 is opened Open the time, or by using the flowmeter (not shown) being configured to calculating flow being arranged in water supply path 311 Regulation is provided to the water of water leg 3 and pump 8.

Preferably, it is about 0.8L with the amount of water with the steam of supply in water supply step (S322) in pre- steam.

Meanwhile, at pre- steam supplied (S324), to pump heater 83, and then, heated pump adds electric current flowing Steam water inside the hot heat pump 8 of device 83 is to produce steam.The steam and then quilt discharged by steam outlet openings 843 from pump 8 Steamed selectively along the first steam path 44 and/or the second steam path 45 supplied to the first steam jet 42 and/or second Vapour nozzle 43.

The steam sprayed by the first steam jet 42 and/or the second steam jet 43 impregnates foreign substance or food is residual Slag, provides wet with the foreign substance or swill that are dried to after in the moisture of washing object by evaporation and exchanged heat Gas.Similarly, steam heating washing object or dishes, with the detersive efficiency in the main washing step (S340) after raising.

Transfer valve 444 is controlled, to selectively turn on/close the first steam path 44 and the second steam path 45 so as to pass through Steam is sprayed by the first steam jet 42 and/or the second steam jet 43, so that steam can be by before staving 2 or rear side Or in the past and the injection of both rear sides.

Pre- steam supplied (S325) can include：It will be steamed by using the first steam jet 42 in the front side of staving Vapour is supplied to the first steam step of staving 2；Steam is supplied with the second steam jet 43 in the rear side by using staving 2 To the second steam step of staving 2.

It can simultaneously or optionally perform the first steam step and the second steam step.

The steam produced in pump 8 can be supplied to staving by driving impeller 85 via spray arm 711,713 and 715 2。

In other words, pre- steam supplied (S324) can include by using one be arranged in staving 2 or The multiple spray arms 711,713 and 715 of person supply the 3rd steam step of steam.

Traditional dishwasher supplies water to staving so as to supplying steam before wash cycle, and then heats and set The heater on the basal surface of staving is put to produce steam.Therefore, the water for being provided to staving is discharged to perform washing Circulation, and washings are re-supplied to staving.

However, traditional dishwasher have supply for wash cycle washings before discharge fail be by heat exchange The shortcoming of the water remained in after steam in staving.First, the heater of heat is driven before heater turns cold to discharge water, and And heater may be damaged.Second, remaining water is discharged and new washings are supplied, so the consumption of water will increase.The Three, relatively great amount of energy is used in the case where heating washings, and overall wash time can adversely increase.

In order to solve these shortcomings, according to the control method of the dishwasher according to the disclosure, main washing water supply step (S342) the remaining water after being condensed during not discharging in pre- steam supplied (S324) or failing heat exchange for steam In the case of supply washing water into pump 3 be used for main washing step (S340).

Thus, it can be prevented according to the control method of the dishwasher of the disclosure to the pump of overheat may be caused after exposure The consumption for damaging and reducing water of heater 83, because remaining water is used as washings.Similarly, by using residue In the case that washings are heated to preset temperature by the residual heat of water, control method can save energy and time.

, can be by experimentally adjusting heat time and the temperature of pump heater 83, in advance when producing and during supply steam Steam supplied (S324) can set the optimum value that steam is remained in pump 8 with water.

Preferably, there is the remaining water of t water levels in pump 8.The bottom 1cm of water leg 9 or pump 8 from pump 8.

Main washing step (S340) is to be used to reality remove foreign substance or swill from washing object or dishes The step of.In other words, main washing step (S340) supply with containing dishwashing liquid washings, and wash the bowl as washing object Dish.

The amount ratio of the washings of supply is in pre- steam water supply step in main washing water supply step (S342) (S322) water in supplied to water leg 3 is big.The water level of the washings of supply is high in main washing water supply step (S342) In steam outlet openings 843.More particularly, preferably supply water to water leg 3 or pump 8 reaches and is arranged on water leg partition wall The water level or higher that intercommunicating pore 86 in 84 is submerged.That is, the washings of supply in main washing water supply step (S342) Amount can be about 2.2L.

In main washing water spray step (S344), the operation of impeller 85 is filled in first chamber (C1) so as to rotate In water travel up to the washing outlet holes 845 being arranged in second chamber (C2) by intercommunicating pore 86, and via Spray arm 711,713 and 715 is sprayed to the washing object being maintained in staving 2.The foreign substance remained on washing object The hydraulic pressure of the washings sprayed from spray arm 711,713 and 715 is removed, and the washings containing foreign substance fall into staving 2 Bottom, so as to be filtered by the collection hole 331 for groove lid 33 of catchmenting.The washings for being only filtered out foreign substance are provided to collection Tank 3, and via spray arm 711,713 and 715 from the fill-before-fire of pump 8 so as to circulate.

In this case, pump heater 83 is heated, so that heat cycles washings, and heated washings warp Sprayed by spray arm 711,713 and 715.

Main washings discharge step (S346) can be set, with after main washing water spray step (S344) by using Discharge path 313 and excavationg pump 314 discharge the washings being stored in water leg 3 and pump 8.

In main washings discharge step (S346), all washings being stored in water leg 3 and pump 8 are all arranged Go out.It is containing many foreign substances to collect the washings in water leg 3 and pump after main washing water spray step (S344) Or the contaminated washings of swill.

Meanwhile, rinse cycle (S400) includes：Rinsing water supply step for washings to be supplied to water leg 3 (S402)；For washings to be sprayed to the washings circulation step (S404) of spray arm 711,713 and 715 by using pump 8； And the washings discharge step (S406) of washings is discharged from water leg 3.

When washings are being supplied to water leg 3 in rinsing water supply step (S402), impeller 85 rotates, so that will storage Water in first chamber (C1) is mobile towards second chamber (C2), and is ejected water to via spray arm 711,713 and 715 In staving 2.Washings circulation step (S404) rotary blade 85 reaches preset time period, so as to be bonded at the exotic on washing object Matter drops.Afterwards, drift washings discharge step (S406) discharge is stored in the washings in water leg 3 and pump 8.Rinse cycle (S400) water is supplied to water leg 3, and the washings sprayed via spray arm 711,713 and 715 are free of dishwashing liquid.Rinsing is followed Ring (S400) is repeatedly performed 2 to 4 times, to remove the foreign substance and dishwashing liquid that are likely to remain in dishes.

Washings circulation step (S404) heat pump heater 83 and the washings supplied from staving 2 are heated to supply quilt The water of heating.

In washings discharge step (S406), the washings being stored in water leg 3 and pump 8 are discharged.Washed in master Wash in the case of supplying steam water (as main washings) in circulation (S300) again, some water are remaining to produce steam, and All steam water are not discharged, and can prevent the damage caused by overheat to pump heater 83.Similarly, can use residual Waste heat, and then can reduce the energy ezpenditure (S340) in main washing step.However, in rinse cycle (S400), quilt Washings supplied to pump 8 are sufficiently heated, and overheat too many concern in the absence of pump heater 83, so pump heater 83 It can not overheat to produce heated water.Thus, in rinse cycle (S400), washings discharge step (S406) from collection Tank 3 and the discharge washings of pump 8, and clean steam is supplied in the steam drying circulation (S500) being described below to staving.

Rinse cycle (S400) and normal baking are included according to the control method of the dishwasher of one embodiment of the disclosure The steam drying circulation (S500) performed between dry circulation (S600).

Steam drying circulation (S500) is such that the internal environment of staving 2 is hot and humid, and by this hot and humid Under environment washing object is heated towards washing object injection steam.Steam drying circulation (S500) is to be used to vaporize washing object On condensed water or water droplet and dry washing object circulation, while it is heated washing object turn cold.

Traditional dishwasher includes final rinse cycle, with to the excessive heated water of washing object injection so that in rinsing Them are dried after circulation and the temperature of washing object is raised.Afterwards, water droplet is vaporized, while the washing object of heat turns cold.So And, it is necessary to too many water is heated to heat washing object, and energy ezpenditure and water consumption are adversely raised.

However, non-aqueous drying washing object by supplying steam according to the dishwasher of the disclosure.Thus, it is only small amounts of Boiling water with by the temperature inside dishwasher be increased to be adapted to drying washing object preset value.In accordance with an embodiment of the present disclosure Dishwasher can save energy and water consumption, and reduce overall wash time.Similarly, injection high-temperature water can be prevented to bowl The damage of coating on dish, and realize high-temperature internal environment by spraying steam.

After rinse step (S400), steam drying circulation (S500) includes：Baking for supplying drying steam water Dry saturated steam is with water supply step (S502)；And for steam to be supplied to the drying steam supplied (S504) of staving 2.

In drying steam with water supply step (S502), a small amount of water is provided to water leg 3 and pump 8, and is supplied to Dry steam and be less than steam outlet openings with the water level of the steam water of water supply step (S502), and be up to from the bottom of pump 8 Or more than 1cm.Especially, it is 0.8L with the amount of water with the steam of supply in water supply step (S502) in drying steam.

Rinse cycle (S400) discharges washings, and steam water is dried in supply again for steam drying circulation (S500). That is, rinse cycle (S400) and steam drying circulation (S500) is separated, and is provided as independent loops.Thus, through drift The dishes washed wholesomely desiccation., can be with when only performing steam drying circulation (S500) without performing rinse cycle (S400) The dishes washed and rinsed by user by using steam and auxiliary circulation drying, for example, can be advantageously carried out disinfectant program.

The control of above-mentioned pre- steam step (S320) can essentially be applied to the control of steam drying circulation (S500). That is, the control of above-mentioned pre- steam water supply step (S322) can be applied to drying steam water supply step (S502), And the control of above-mentioned pre- steam supplied (S324) can be applied to drying steam supplied (S504).Thus, dry Dry saturated steam water supply step (S502) and drying steam supplied (S504) detailed description repeat and thus will be saved Slightly.

Steam drying circulation (S500) can also include being used to discharge water (the steam use being stored in water leg 3 and pump 8 Water) drying steam with water discharge step (S506).After drying steam discharges step with water, completion of washing the dishes, and need not Steam or washings are supplied to staving.Thus, the water being stored in pump 8 and water leg 3 is discharged, to prevent microorganism Breeding.

Fig. 4 is to show to supply steam water in the control method according to the dishwasher of one embodiment to produce the side of steam The block diagram of method.

Steam is supplied to staving by pre- steam step (S320) and steam drying circulation (S500).In order to produce steam, steam Vapour is provided to water leg with water.Hereinafter, description is used in pre- steam with water supply step (S322) or drying steam By the control method of steam water supply to water leg 3 in water supply step (S502).The explanation being described herein can be answered For pre- steam both water supply step (S322) and drying steam water supply step (S502).In order to explain, it will use The steam reference and term of water supply step (S322 and S502).

As shown in Figure 4, steam water supply step (S322 and S502) includes：For supplying washing water into water leg 3 so that wash the first water supply step (S10) of water leg 3 and pump 8；With the first discharge step for discharging supplied water (S30)。

If the steam being stored in water leg 3 or pump 8 is with water is comprising foreign substance and has high pollution degree, Pump heater 83 must be heated too high to produce steam.In this case, it is impossible to produce desired quantity of steam, or supplied The steam answered, which may be contaminated into, to be enough to pollute dishes.Thus, washings are provided to water leg 3, and are maintained at and catchment Water in groove 3 or pump 8 is diluted, and the water containing foreign substance is discharged in the first discharge step (S30), is catchmented with washing Groove 3 and pump 8.

First circulation step can also be set between the first water supply step (S10) and the first discharge step (S30) (S20).In first circulation step (S20), moved by being sprayed wash water into through spray arm 711,713 and 715 in staving 2 Except the foreign substance being bonded on the surface of staving or dishes.

First water supply step can be included according to the steam water supply step (S322 and S502) of one embodiment (S10) and first discharge step (S30), and optionally include first circulation step (S20).In this case, Water supply is performed in one water supply step (S10), untill its water level becomes to be above steam outlet openings 843, is preferably carried out Water supply is so as to fill the storage unit 31 of water leg 3 with water, so as to dilute the water being stored in water leg and pump.In the first discharge In step (S30), the washings supplied in the first water supply step are discharged, and not all supplies washings all by Discharge, and water is discharged to the water level less than the steam outlet openings 843 in pump 8, and height is 1cm for the bottom from pump, To produce steam.Thus, steam is produced by using the remaining water in pump 8.With not performing the first water supply step wherein (S10) situation is compared, and is produced and is supplied cleaner steam, and the water used in washing can be minimized.

Meanwhile, the first water supply step is included with water supply step (S322 and S502) according to the steam of another embodiment (S10) and first discharge step (S30), and optionally include first circulation step (S20).In the first water supply step (S10) water supply is performed in, until its water level becomes to be above steam outlet openings 843, is preferably carried out water supply to fill out with water The storage unit 31 of water leg 3 is filled, to dilute the water being stored in water leg and pump.In the first discharge step (S30), the All washings supplied in one water supply step are all discharged, and remove from water leg and pump contaminated washings. Afterwards, the second water supply step (S40) is also set up, in the second water supply step (S40), supplies steam water to produce steaming Vapour, untill its water level gets lower than the steam outlet openings 843 in pump 8, and height is and higher than the bottom from pump 1cm.Thus, with according to above-described embodiment in steam with steam phase ratio is produced in water supply step (S322 and S502), can be with Produce and supply clean steam.

Meanwhile, normal drying cycle (S600) can not supply steam to washing object and dry these washing objects.

Before normal drying cycle (S600), steam is provided to washing object, and it is heated to wash object.For The furnace drying method of the heated washing object of drying is divided into exhaust furnace drying method and circulating furnace drying method.

According to exhaust furnace drying method, after normal drying cycle (S600) is completed, door 13 is automatically turned on, to pass through opening 11 or the blast pipe (not shown) that is connected with staving 2 steam or humid air are emitted into outside scrubbing space 21, and also It is provided for opening and closing the air bleeding valve (not shown) of blast pipe (not shown).After the completion of steam drying circulation (S500), The first baking step (not shown) can be performed with by opening air bleeding valve (not shown) via blast pipe (not shown) by steam Outside is emitted into humid air.

According to circulating furnace drying method, dishwasher includes：Circulation pipe 202 with the both sides connected with staving 2；It is set In circulation pipe and condense the dehumidifier 204 of humid air；It is arranged in circulation pipe 202 and heats what is condensed by dehumidifier The heating arrangements 206 of air；And the air for being arranged in circulation pipe 202 and heating heated mechanism 206 blow to The circulating fan 208 of staving.

In this case, normal drying cycle (S600) can include the second baking step (not shown), with by Driving cycle fan 208 makes the inner air of staving 2 be circulated by circulation pipe 202 after steam drying circulation (S500), and The humid air circulated in circulation pipe 202 is condensate in by using dehumidifier 204 and dry air is supplied to staving.Thus, do not have The heated air of heat is discharged to outside dishwasher, and in the absence of the risk that user is burnt.Blast pipe is not provided with, so It is advantageously easier to that dishwasher is installed.

In addition, normal drying cycle (S600) can also include the 3rd baking step (not shown), with by using heating Mechanism 206 heats the air dried in dehumidifier 204, and heated hot-air is supplied into staving.Thus, with by sky Traditional drying cycle of gas supplied to staving is compared, and in shown drying time, the steam drying time can shorten, and be filled Hot food on the warm state plate or plate dried by hot-air will not turn cold.

Meanwhile, it can also be included pre-washing circulation (S200) according to the control method of the dishwasher of one embodiment.

The washings that circulation (S200) is not mixed to washing object injection with dishwashing liquid are pre-washed, and in main wash cycle (S300) the relatively large foreign substance being bonded in washing object or dishes is removed before.Even pre-washing circulation (S200) In, pump heater 83 also is heated to heat washings, and sprays heated water by spray arm.

Fig. 6 be the control method for showing the dishwasher according to the disclosure program and option several embodiments figure.

With reference to Fig. 1,3 and 6, according to the control method of the dishwasher of one embodiment can include being used for selecting one or Multiple pre-set programs or the program of option/option selection step (S100).

Dishwasher includes control panel 14, and control panel 14 has the procedure selection unit for being used for selecting a pre-set programs 16；Option select unit 17 for even adding steam option when selected program is non-steam program.Control panel 14 It is arranged in the top on the preceding surface of dishwasher or upper area.

Control panel 14 can include display unit 15, and display unit 15 shows what is selected from procedure selection unit 16 Program and the unit selected from option select unit 17, to provide a user the information on selected program and option.

Procedure selection unit 16 includes：Program is used with the steam for washing multiple washing objects or dishes using steam (st)；And without using the non-steam program (stn) of steam.Non-steam program (stn) includes the Normal Wash being described below Program (stn-nor).Steam procedures (st) include pre- steam procedures (st-c1), steam drying program (st-c2) and steam procedures (st-c3)。

With reference to Fig. 6, pre- steam procedures, steam drying program will be described in detail.

As selection Normal Wash program (stn-nor) in program/option selection step (S100), then implement to be washed by master Wash circulation (S300) (or main washing step (S340)), rinse cycle (S400) and normal drying cycle (S600) composition not Supply the Normal Wash program (stn-nor) of steam.In this case, heated in the last rinsing step of rinse cycle High-temperature rinsing water be injected into washing object surface while, heated washing object turns cold, and water droplet from washing pair The surface vaporization of elephant is so as to dry washing object.

When program/option selection step (S100, by main wash cycle (S300) (or pre- steam step (S320) and The pre- steam procedures (st-c1) that main washing step (S340) is constituted)) in when selecting pre- steam procedures (st-c1), then implement supply The rinse cycle (S400) and normal drying cycle (S600) of steam.

Similarly, as selection steam drying program (st-c2) in program/option selection step (S100), then implement By main wash cycle (S300) (or main washing step (S340), rinse cycle (S400), steam drying circulation (S500) and just Normal drying cycle (S600)) the steam drying program (st-c2) for not supplying steam that constitutes.Thus, steam is provided to washing Object to them so as to be heated, and heated washing object is dried while turning cold by using heat of evaporation.

As selection steam procedures (st-c3) in program/option selection step (S100), then implement by main wash cycle (S300) (or pre- steam step (S320) and main washing step (S340)), rinse cycle (S400) and normal drying cycle (S600) steam procedures (st-c3) of the supply steam constituted.

Meanwhile, the program of selection is non-steam procedures (stn) in program/option selection step (S100), also may be used So that steam is supplied into staving from the selection of option select unit 17 according to user.Option select unit can include：Perform pre- The first option (stn-o1) of steam step (S320)；Perform the second option (stn-o2) of steam drying circulation (S500)；With And perform the 3rd option (stn-o3) of pre- steam step (S320) and steam drying circulation (S500).Thus, even in program/ Selection Normal Wash program (stn-nor) in option selection step (S100), user can also be in Normal Wash program (stn- Nor) during from option select unit 17 select the first to the 3rd option in one so as to washing object injection steam and Improve detersive efficiency.

Fig. 5 is the block diagram of the steam refresh course provided in the control method according to the dishwasher of another embodiment.Ginseng Fig. 5 and 6 are examined, by description steam refresh course (st-re).

Steam refresh course (st-re) as the control method of the dishwasher according to the illustrative embodiments can include： The rinse cycle (S400) of object is washed for being rinsed by jet cleaning water；For washing object by supplying steam drying Steam drying circulates (S500)；With the normal drying cycle for the drying washing object in the case where not supplying steam (S600)。

Steam refresh course (st-re) washs object washing before can not being included in rinse cycle (S400) is followed Ring.Steam refresh course is to be used to remove dust from long-term no dishes, or can be only by using water without using washing The rinsing of bowl liquid removes foreign substance, or warms up before dress food the program of dishes.

Detailed description and the basis of rinse cycle (S400), steam drying circulation (S500) and normal drying cycle (S600) Those explanations of the control method of above-described embodiment are identical.Thus, repeat specification is omitted below, and difference will be described.

Rinse cycle (S400) can include：For with the first preset temperature spray rinse water up to the first preset time period First rinse step (S420)；Walked with for being rinsed with the second preset temperature spray rinse water up to the second of the second preset time period Suddenly (S440).

In the first rinse step (S420) and the second rinse step (S440), water is provided to water leg 3, and only drives Dynamic pump 8 by jet pump injection water to reach preset time period, and similarly, the water being stored in water leg and pump is controlled so as to be arranged Go out.

First rinse step (S420) is configured to the water that supply is received from external water source of supply.The water level for the water supplied It is high or higher as water leg partition wall 84.By the rotation of impeller 85, it will be supplied via washing outlet holes 845 Water is ejected into staving 2.In the first washing step (S420), only pass through the injection water of top arm 715.First preset temperature is from outer The water temperature of portion water supply source supply, and the first preset time period is about 60 seconds.Thus, it is possible to the first rinse step is referred to as pre- Rinse step.Because supplying warm water from external water source of supply in North America, set in the dishwasher that North America is manufactured First rinse cycle results in a little effect for improving washing object temperature.

Meanwhile, the second rinse step (S440) is configured to actual rinsing washing object.At the second rinse step (S440) In, water is injected into washing object while upper arm 711 and underarm 713 are rotated.Second preset temperature is preset higher than first Temperature, and the second preset time period is than the first preset time segment length.Thus, the second rinse step (S440) results in reality The effect of dust is washed away from washing object.

Second rinse step (S440) can include heating water to the second preset temperature by using pump heater 83 Washings heating stepses (not shown).Especially, the second preset temperature is about 45 DEG C, and the second preset time period is about 240 Second.

Meanwhile, rinse cycle (S400) can also include being used for the 3rd preset temperature spray rinse water up to the 3rd it is default when Between section the 3rd rinse cycle (S460).

3rd preset temperature is less than the second preset temperature, especially, equal to the first preset temperature.That is, in the 3rd rinsing step Suddenly in (S460), water is provided to water leg (S460), and water is sprayed to staving 2 by pump 8 and means dampening not by pump heater 83 heating.Thus, the pump heater 83 for being actuated to heat water turns cold in the second rinse step (S440), and prevents pump Overheated heater.Unless just performed the 3rd rinse step (S460) after water leg and pump discharge water, otherwise mean storage All water existed in pump 8 are all discharged, and may be overheated and be damaged exposed to the pump heater 83 of air, or Person causes disaster hidden-trouble.

3rd preset time period is shorter than the second preset time period.Especially, when the 3rd preset time period is default equal to first Between section, be about 60 seconds.Because taking long enough the pump heater 83 of cooling overheat.

Similar with the first rinse step (S420), the 3rd rinse step (S460) is sprayed by the injection water of top arm 715 The water penetrated plays cooling washing object.

Control panel 14 is included according to the dishwasher of illustrated embodiment, control panel 14, which has, to be used to select a default journey The procedure selection unit 16 of sequence；With for the option select unit 17 that steam is added from the program of procedure selection Unit selection.

Program/option selection step (S100) can be included according to the control method of the dishwasher of illustrated embodiment, to select Select a pre-set programs and add steam so as to washing object, or to selected program.

When selecting steam refresh course (st-re) in program/option selection step, then held as steam refresh course Row rinse cycle (S400), steam drying circulation (S500) and normal drying cycle (S600).

After steam refresh course (st-re), the dust on dishes or washing object is bonded to without using washing the dishes Controlled and washed away in the case of liquid.Thus, the overall duration is relatively short, and dishes is by moise-heat sterilization and dries It is dry, it is possible to almost no water stain, and dishes can be warmed up.

Above-described embodiment is merely illustrative, and is not construed as limiting the disclosure.This technology can be easy to application In other types of method and apparatus.This explanation is intended to exemplary, and does not limit the scope of claim.Many is replaced Choosing, modifications and variations will be apparent for those skilled in the art.The feature of exemplary embodiment as described herein, structure, Method and other characteristics can be combined in a variety of ways, to obtain other and/or alternative exemplary embodiment.Due to not inclined In the case of from its characteristic, proposed feature can be embodied in several forms, so it will also be appreciated that unless otherwise noted, Otherwise above-described embodiment is not limited by any details of described above, but should be briefly considered as and be wanted in appended right Ask in the range of restriction, therefore, fall into border and the boundary of claim, or the institute in the equivalent of these borders and boundary Change to be intended to modification and covered by appended claims.

Claims

1. a kind of control method of dishwasher, including：

Main wash cycle, the main wash cycle is used to wash one or more washing object being maintained in staving；

Rinse cycle, described in the rinse cycle is used to being rinsed in the main wash cycle and wash by jet cleaning water Wash object；

Normal drying cycle, the normal drying cycle is used to dry the washing object rinsed in the rinse cycle,

Wherein, the main wash cycle includes：

Pre- steam water supply step, pre- steam water supply step is used for pre- steam water supply to water leg, with Just steam is supplied to the staving；

Pre- steam supplied, the pre- steam supplied is used to produce steam and the steam is supplied into the bucket Body；

Main washing water supply step, the main washing water supply step is used to be provided to described in the water leg not discharging Pre- steam supplies washing water into the water leg with the case of water；

Main washing step, the main washing step is used to wash the washing pair by making the washing water circulation of supply As；And

Main washings discharge step, and the main washings discharge step is used to discharge the washings.

2. the control method of dishwasher according to claim 1, wherein, supplied in the pre- steam with water supply step The pre- steam be less than the amounts of the washings supplied in the main washing water supply step with the amount of water.

3. the control method of dishwasher according to claim 1, wherein, the dishwasher includes：

The washing water pump being stored in the water leg is delivered to spray arm by pump, the pump；

Pump heater, the pump heater is arranged in the pump and heats the washings；And

Steam outlet openings, the steam outlet openings are arranged in the pump and discharge steam,

Wherein, it is less than the steam outlet openings with the water level for the steam water supplied in water supply step in the pre- steam, and And

Wherein, the water level for the washings supplied in the main washing water supply step is higher than the steam outlet openings.

4. the control method of dishwasher according to claim 1, wherein, the pre- steam supplied includes：

First steam step, first steam step is supplied by using the first steam jet from the front side of the staving to be steamed Vapour；

Second steam step, second steam step is supplied by using the second steam jet from the rear side of the staving to be steamed Vapour；And

3rd steam step, the 3rd steam step is by using one or more spray arm being arranged in the staving To supply steam.

5. the control method of dishwasher according to claim 1, wherein, the main wash cycle is towards the washing object The washings mixed with dishwashing liquid are sprayed, and

The control method be included in the main wash cycle before pre-wash circulation, it is described to pre-wash circulation to the washing The washings that object injection is not mixed with dishwashing liquid.

6. the control method of dishwasher according to claim 1, also includes：

Steam drying circulation after the rinse cycle, the steam drying circulation includes：

Steam water supply step is dried, the drying steam water supply step is used to supply drying steam water to dry The washing object；With

Steam supplied is dried, the drying steam supplied is used to supply steam to the staving.

7. the control method of the dishwasher according to claim 1 or 6, wherein, the pre- steam with water supply step or Steam water supply step is dried described in person to be included：

First water supply step, the first water supply step is used to supply washing water into the pump to wash described catchment Groove and the pump；With

First discharge step, the first discharge step is used for the washings for discharging supply.

8. the control method of dishwasher according to claim 7, also includes：

First circulation step before the described first discharge step, the first circulation step is used to make by driving the pump Washings the water leg and the pump inner loop and wash the inner space of the water leg and the pump.

9. the control method of dishwasher according to claim 7, also includes：

The second water supply step after the described first discharge step, the second water supply step is used for the water leg Steam water is supplied to produce steam,

Wherein, all washings that the first discharge step discharge is supplied in the first water supply step.

10. the control method of dishwasher according to claim 1, also includes：

Program/option selection step before the main wash cycle, described program/option selection step is used for option program Or the option of the program addition steam to selection,

Wherein, though when selecting non-steam program, also can be by selecting to be used to steam in selecting step in described program/option The option of vapour supplies steam.