CN102560977A

CN102560977A - Washing machine and control method of the same

Info

Publication number: CN102560977A
Application number: CN2011104484594A
Authority: CN
Inventors: 李锡镇
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2010-12-23
Filing date: 2011-12-22
Publication date: 2012-07-11
Also published as: US20120159716A1; KR20120071528A

Abstract

The invention discloses a washing machine and control method of the washing machine. The washing machine has a structure which is capable of generating bubbles in wash water. The washing machine includes a main body, a tub vertically arranged within the main body, a passage case including a first drainage pipe connected to a lower portion of the tub and a branch pipe to allow wash water introduced from the first drainage pipe to be introduced into the tub again, a pump including a pump case having a first pump inlet arranged at a relatively higher position than the branch pipe and a motor coupled to one end of the pump case so as to supply power to pump the wash water introduced into the first pump inlet, and a bubble generating unit to generate bubbles in the wash water pumped by the pump.

Description

Washing machine and the method that is used to control this washing machine

Technical field

The method that embodiment of the present disclosure relates to a kind of washing machine and is used to control this washing machine, said washing machine has such structure: this structure is used in the washings of bucket that is introduced in washing machine and rotary barrel, producing foam and is used for the bucket of washing machine and the washings in the rotary barrel are discharged.

Background technology

Use in washing machine is in utilizing electric energy washing clothes.Such washing machine generally includes the bucket that is used to store washings, be rotatably installed in rotary barrel in the said bucket, be rotatably installed in the impeller on the pedestal of rotary barrel and be used for the rotatably motor of driven in rotation bucket and impeller.

When rotary barrel and impeller when clothing and washings are placed under the situation in the rotary barrel through the motor rotation, clothing and washings that impeller will be placed in the rotary barrel stir together, to get on except that spot from clothing.

Under the situation of common automatic washing machine; Powder detergent is supplied to washtub in the starting stage of washing process, and liquid detergent basis such as the washing process such as (purificants) or the wash conditions of rinse cycle that perhaps are stored in the detergent container are automatically put into washtub.Then, being placed into the rotation of washing agent through impeller in the washtub decomposes or is dissolved in the water.In this case, need spend the considerable time to decompose and perhaps be dissolved in washing agent.That is, because automatic washing machine only decomposes perhaps dissolving detergent through the revolving force of impeller, so the raising of detersive efficiency and washing quality is restricted.

Summary of the invention

Therefore, one side of the present disclosure is to provide a kind of washing machine that can in washings, produce the structure of foam that has.

Another aspect of the present disclosure is to provide a kind of washing machine of structure that can washing level be discharged into quietly the outside of washing machine that has.

Other aspects of the present disclosure will partly be set forth in description subsequently, partly will be obvious through describing, perhaps can understand through implementing the disclosure.

According to an aspect of the present disclosure, washing machine comprises: main body; Bucket is arranged in the main body vertically; The passage housing comprises first drainpipe and arm, and first drainpipe is connected to the bottom of bucket, and arm allows to be introduced in the bucket once more from the washings that first drainpipe is introduced; Pump comprises pump case and motor, and pump case has first pump intake that is arranged in than the relative higher position of arm, and motor is attached to an end of pump case, for being applied to aspirate the power that is introduced in the washings in first pump intake; The foam generation unit is used for being produced foam by the washings of pump suction and being communicated with bucket.

The passage housing also can comprise second drainpipe, and second drainpipe is communicated with first drainpipe, washings are directed to the outside of washing machine.

Arm can comprise also that at least one foreign matter that is used for filtering the foreign matter that the washings introduced from first drainpipe contain flows into and prevent rib that foreign matter flows into and prevents that rib can be outstanding from the interior perimeter surface of arm.

Pump case also can comprise second pump intake of the lower end that is connected to bucket, and second pump intake can be arranged in than the relative higher position of first pump intake.

Can be provided with the foreign matter that is used for the foreign matter that the washings in the filter vat contain flows into and prevents that projection, second pump intake can be formed on foreign matter and flow into and prevent in the projection on the top of pump case.

Pump case can comprise that also the foreign matter inflow prevents wall, is used for filtering the foreign matter that contains from the washings of first pump intake introducing.

Foreign matter flows into and prevents that wall can be arranged on the middle body of pump case; The washings of introducing from first pump intake can be introduced in foreign matter and flow into and prevent in the wall, are sucked into the foam generation unit then.

Pump case can comprise: the motor joint portion, and the motor joint portion combines with motor, aspirates from the washings of first pump intake or the introducing of second pump intake with supplying power; Pump discharge is used for the washings that aspirated are directed to the foam generation unit, and said pump discharge can be arranged on the outer surface of motor joint portion, to be communicated with the motor joint portion.

Pump case can comprise first accommodation section and second accommodation section; First accommodation section is used to hold the washings from first pump intake or the introducing of second pump intake; One end of second accommodation section is connected with first accommodation section; The other end of second accommodation section is connected with the motor joint portion simultaneously, and first accommodation section and second accommodation section can be flowed into by foreign matter and prevent the wall separation.

Foreign matter flows into and prevents that wall from also can comprise residual water removal hole, is used for removing the residual washings in second accommodation section.

The foam generation unit can comprise: first passage is introduced in the first passage by the washings of pump suction; Second channel has the relative littler sectional area of sectional area than first passage; Air intake is communicated with second channel, to supply air to the washings that flow through second channel.

Second drainpipe can be provided with valve, so that the washings of introducing from first drainpipe flow towards second drainpipe or arm.

Washing machine also can comprise: first connects flexible pipe, the connecting branch and first pump intake; Second connects flexible pipe, connects pump discharge and foam generation unit.

According to another aspect of the present disclosure, washing machine comprises: main body; Bucket is arranged in the main body vertically; The passage housing; Comprise first drainpipe, second drainpipe and arm; First drainpipe is communicated with bucket; Thereby the washings in the bucket are introduced in first drainpipe, and second drainpipe will be introduced in the outside that washings in first drainpipe are discharged into washing machine, and arm changes the direction of motion that is introduced in the washings in first drainpipe and is arranged to simultaneously separate out predetermined length with the bottom of bucket; Pump comprises pump case and motor, and pump case has and is arranged to than arm more near first suction channel of bucket, and motor is connected to a side of pump case, the washings of introducing through first suction channel with suction; The foam generation unit has the air intake that is used for to supplied air by the washings of pump suction.

Pump case also can comprise second suction channel, and second suction channel is communicated with the lower end of bucket and is arranged on above first suction channel.

Pump case can comprise that also being used for filtering foreign matter that the washings introduced through first suction channel contain flows into and prevent wall.

Flow into the outer surface that prevents wall at foreign matter and can be provided with residual water removal hole, prevent that the inboard washings of wall from flowing towards second drainpipe so that remain in the foreign matter inflow.

Arm can comprise that also at least one foreign matter inflow of giving prominence to from the interior perimeter surface of arm prevents rib, with the foreign matter that contains in the filtration washing water.

The foam generation unit can comprise wash water passage and air duct, is flowed through wash water passage by the washings of pump suction, and air duct is communicated with wash water passage, to supply air to the washings that flow through wash water passage.

According to another aspect of the present disclosure, a kind of method that is used to control washing machine, said washing machine comprises main body, bucket, drainpipe, pump and foam generation unit; Bucket is arranged in the main body vertically; Drainpipe is communicated with bucket, and pump is arranged in the bottom of bucket, and the foam generation unit produces foam in by the washings of pump suction; Said method comprises: in the process that washings is fed in the bucket, and the horizontal plane of sensing washings; Determine whether to need to discharge to be fed to the washings in the bucket; Wherein, when the horizontal plane of washings was increased to the horizontal plane above predetermined altitude, drainpipe was closed; Thereby washings are controlled as and are sent to pump; When confirming to need to discharge washings, drainpipe is opened, thereby washings are controlled as the outside that is discharged into washing machine through drainpipe.

Description of drawings

Through the description of embodiment being carried out below in conjunction with accompanying drawing, above-mentioned and/or other aspects of the present disclosure will become clear with should be readily appreciated that more, in the accompanying drawing:

Fig. 1 is the cutaway view that illustrates according to the washing machine of exemplary embodiment of the present disclosure;

Fig. 2 is the partial sectional view that foam generation unit, pump, passage housing and bucket from Fig. 1 selection are shown;

Fig. 3 illustrates the upward view of observing the bucket of Fig. 1 from the bottom;

Fig. 4 is the partial sectional view that the passage housing of from Fig. 2, selecting is shown;

Fig. 5 is the partial sectional view that the pump of from Fig. 2, selecting is shown;

Fig. 6 is the cutaway view that the foam generation unit of from Fig. 2, selecting is shown;

Fig. 7 is the view that flows that washings when in washings, producing foam are shown;

Fig. 8 is the view that flows that washings when the discharging washings are shown.

The specific embodiment

To make detailed description to embodiment of the present disclosure now, the example of embodiment is shown in the drawings, and wherein, identical label is represented components identical all the time.

Fig. 1 is the cutaway view that illustrates according to the washing machine of exemplary embodiment of the present disclosure.

As shown in fig. 1, the washing machine of representing with label 1 comprises: main body 10, the outward appearance of qualification washing machine 1; Bucket 20 is arranged in the main body 10; Rotary barrel 30 rotatably is arranged in the bucket 20; Driver element 40 is arranged in bucket 20 bottom, so that rotary barrel 30 rotations.

Be provided with on the top of main body 10 and cover 15, said lid 15 has clothing and puts into hole 14, so that clothing is put in the rotary barrel 30.Lid 15 is provided with door 16, puts into hole 14 to open and close clothing.

The outside of bucket 20 is connected with suspension unit 21 respectively, supports from main body 10 suspensions and by main body 10 to allow bucket 20.Be combined with annular bung 70 in the upper end of bucket 20, to cover bucket 20.

Rotary barrel 30 rotatably is arranged in the bucket 20, and has some through holes 31.

Impeller 35 rotatably is installed on the pedestal of rotary barrel 30.Impeller 35 is used for the clothing of putting into rotary barrel 30 is stirred with washings.

Driver element 40 comprises: clutch 41 is used to make rotary barrel 30 and impeller 35 rotations; Drive motors 43 is used to drive clutch 41.Drive motors 43 is connected to clutch 41 through pulley and band, driving force is sent to rotary barrel 30 and impeller 35.

On the top of bucket 20 water supply unit 50 is installed, washings are fed to bucket 20.Water supply unit 50 comprises: feed water valve 53, with the supply of control water; Water supply pipe 51 is connected feed water valve 53 with washing agent feeding unit 60.

One side of water supply pipe 51 is connected with outside watering (not shown), and the opposite side of water supply pipe 51 is connected with washing agent feeding unit 60 simultaneously.

Washing agent feeding unit 60 comprises: housing 61 is arranged on and covers in 15; Detergent container 63 is removably mounted in the housing 61 and stores various washing agent.Discharge orifice 65 is formed on the bottom at housing 61, is dissolved with the washings of washing agent with discharging.

To be supplied in the bucket 20 via washing agent feeding unit 60 with washing agent through the water of water supply pipe 51 supplies.

Fig. 2 is the partial sectional view that foam generation unit, pump, passage housing and the bucket from Fig. 1, selected are shown.Fig. 3 illustrates the upward view of observing the bucket of Fig. 1 from the bottom.Fig. 4 is the partial sectional view that the passage housing of from Fig. 2, selecting is shown.Fig. 5 is the partial sectional view that the pump of from Fig. 2, selecting is shown.Fig. 6 is the cutaway view that the foam generation unit of from Fig. 2, selecting is shown.

To shown in Fig. 6, be combined with passage housing 120, pump 150 and foam generation unit 180 like Fig. 2 in the bottom of bucket.Passage housing 120 guiding washings perhaps are incorporated into washings the bucket 20 thereby washings are discharged into the outside of washing machine 1 from bucket 20 once more.Pump 150 is used to aspirate the washings through passage housing 120.Foam generation unit 180 supplies air to the washings by pump 150 suctions, to produce foam.

Passage housing 120 comprises: first drainpipe 122 is connected to bucket 20; Arm 124 is directed to pump 150 with the washings that are introduced in first drainpipe 122; Second drainpipe 126 is with being introduced in the outside that washings in first drainpipe 122 are discharged into washing machine 1.

First drainpipe 122 is attached to an end of bucket 20 downside, and being communicated with bucket 20, thereby the washings in barrels 20 can be introduced in the passage housing 120.

Being introduced in washings in the passage housing 120 through first drainpipe 122 flows in the arms 124 via branching portion 128 or in second drainpipe 126.

Arm 124 changes the flow direction of the washings of introducing through first drainpipe 122, to guide washings towards pump 150.Arm 124 comprises that at least one foreign matter inflow of the foreign matter such as velveteen (foreign matter) that is used for filtration washing water and possibly contains prevents rib 132.Foreign matter flow into prevent rib 132 be arranged to separate equably each other and parallel in half the corresponding length basically of diameter of outstanding from the interior perimeter surface of arm 124 respectively and arm 124.Such foreign matter flows into and prevents the foreign matter such as velveteen that possibly contain in the rib 132 filtration washing water, and does not influence flowing of washings through arm 124.Because flowing into, each foreign matter prevents that rib 132 is also from the outstanding predetermined length of interior perimeter surface of the upside of arm 124; So the foreign matter that contains in the washings that between the draining period of washings, discharge can freely discharge through second drainpipe 126, does not prevent that rib 132 from filtering and do not flowed into by foreign matter.

Second drainpipe 126 will be discharged into the outside of washing machine 1 through the washings that first drainpipe 122 is introduced.

Second drainpipe 126 also is provided with valve 134.When the washings of second drainpipe 126 in bucket 20 were opened between moving period, washings discharged through second drainpipe 126, and do not flow into arm 124.In addition, valve 134 cuts out second drainpipe 126 between the moving period of washings, thereby prevents that washings from passing through 126 dischargings of second drainpipe.

Pump 150 comprises: pump case 152 limits the passage that washings are flowed through; Motor 154 is connected to an end of pump case 152, for the power that is applied to the washings in the suction pump housing 152.

Pump case 152 comprises: first pump intake 161 is used to guide the washings through arm 124; Second pump intake 162 is communicated with the lower end of bucket 20; Foreign matter flows into and prevents wall 164, is used for filtering the foreign matter that contains from the washings of first pump intake, 161 introducings; Flowed at first accommodation section 171 and second accommodation section 172 that prevents that wall 164 from separating by foreign matter; Motor joint portion 174 combines pump case 152 with motor 154; Pump discharge 176 is arranged on the outer surface of motor joint portion 174.

First pump intake 161 guiding washings, so that can be introduced in the pump case 152 through the washings of arm 124, first pump intake 161 thereby be disposed in than arm 124 relative higher positions.Because first pump intake 161 is disposed in the position higher than arm 124, so washings can be discharged into the outside of washing machine 1 reposefully.To describe such structure in detail below.

Second pump intake 162 is arranged on the top of pump case 152, thereby pump case 152 is communicated with the lower end of bucket 20, thereby directly the washings in the bucket 20 is incorporated in the pump case 152.Second pump intake 162 is disposed in the position higher than first pump intake 161.Between the draining period of washings; The washings that are introduced directly in the pump case 152 through second pump intake 162 make the washings supercharging in the pump case 152, thereby the washings in the pump case 152 can flow towards passage housing 120 through first pump intake 161 smoothly.

Simultaneously, limit the structure that washings is incorporated into the passage in the pump case 152 respectively according to first pump intake 161 and second pump intake 162, first pump intake 161 and second pump intake 162 can be called as the first suction channel 161a and the second suction channel 162a respectively.

Be incorporated into the foreign matter that contains in the washings in the pump case 152 through second pump intake 162 and prevented that by the foreign matter inflow projection 163 from filtering such as velveteen.Foreign matter flows into and prevents that projection 163 is upwards outstanding in bucket 20 from the top of pump case 152, and second pump intake 162 is formed on the foreign matter inflow and prevents in the projection 163.

Foreign matter flows into and prevents the middle body of wall 164 basic setups in pump case 152, and the cylindrical shape that has hollow simultaneously is drawn towards the impeller (not shown) that is connected to motor 154 and rotation to prevent the foreign matter that from the washings that first pump intake 161 is introduced, contains.As stated, the foreign matter inflow that the foreign matter that contains in the washings in the bucket 20 at first is set in the arm 124 prevents that rib 132 from filtering, and is not flowed into by foreign matter then and prevents that the foreign matter that rib 132 filters from then being prevented wall 164 secondary filters by the foreign matter inflow.

First accommodation section 171 in the pump case 152 and second accommodation section 172 flow into through foreign matter and prevent that wall 164 is separate.

First accommodation section 171 is formed in the space that foreign matter flows into the outside that prevents wall 164, has the shape around second accommodation section 172 simultaneously.Therefore, first accommodation section, 171 guiding washings so that can be accommodated in first accommodation section 171 from the washings of

first pump intake

161 and 162 introducings of second pump intake, are introduced in second accommodation section 172 then.

Second accommodation section 172 is formed in the space that foreign matter flows into the inboard that prevents wall 164, and the end in second accommodation section 172 is communicated with first accommodation section 171 simultaneously, and the other end in second accommodation section 172 is communicated with motor joint portion 174.Therefore, second accommodation section, 172 guiding washings are so that washings are incorporated into motor joint portion 174 from first accommodation section 171.

Flow into the bottom that prevents wall 164 at foreign matter and be provided with residual water removal hole 173, residual water is removed hole 173 and is communicated with second accommodation section 172.The residual water that residual water removal hole 173 will may remain in second accommodation section 172 after the washings discharging is directed to first pump intake 161, thereby residual water can be through 126 dischargings of second drainpipe.

Motor joint portion 174 is arranged on an end of pump case 152, and combines with motor 154, the washings that said motor 154 supplying power are introduced from second accommodation section 172 with suction.The impeller (not shown) is attached to the rotating shaft and the rotation of motor 154, with supplying power the washings that are introduced in motor joint portion 174 is sent to foam generation unit 180.

Pump discharge 176 is arranged on the outer surface of motor joint portion 174, and being communicated with motor joint portion 174, thereby the washings that will be aspirated are directed to foam generation unit 180.

Foam generation unit 180 comprises: wash water passage 184, wash water passage 184 are flow channels of washings; Air intake 190 is used to supply air to the washings that flow through wash water passage 184.

Wash water passage 184 comprises first passage 181 and second channel 182, when the cross section of first passage 181 and second channel 182 be circle basically and be formed the inside of passing foam generation unit 180.

First passage 181 is formed in definite length extended in the foam generation unit 180.Second channel 182 is communicated with first passage 181, has the relative littler diameter D2 of diameter D1 than first passage 181 simultaneously.Second channel 182 also is formed in definite length extended in the foam generation unit 180.

Reduced diameter portion 183 is arranged between first passage 181 and the second channel 182, to reduce moving to the resistance that is stood during the second channel 182 from first passage 181 at washings.

Air intake 190 is penetrated into the inside of foam generation unit 180 from the outer surface of foam generation unit 180, to be communicated with second channel 182.From the purpose that makes the air smooth flow, the diameter D2 of the comparable second channel 182 of the diameter of air intake 190 is little.One end of air intake 190 flows into flexible pipe 192 with the air that is attached to bung 70 and combines, and is as shown in fig. 1, thereby the air in bung 70 can be introduced in air intake 190.

When the washings through first passage 181 of flowing were introduced in the diameter second channel 182 littler than first passage 181, the washings that the speed ratio that is introduced in the washings of second channel 182 flows through first passage 181 increased manyly.As a result, the pressure in the second channel 182 and the increase of speed reduce pro rata.

In this case, the ratio that is reduced to of pressure ground produces in pressure reduction between the outside of the cross section of second channel 182 and foam generation unit 180 and the second channel 182.Therefore, the extraneous air of foam generation unit 180 is introduced in the second channel 182 through air intake 190 owing to pressure reduction, thereby mixes with washings.

Such phenomenon is called as Venturi effect.According to Venturi effect, when passage that fluid differs from one another through diameter difference and sectional area, square the increasing pro rata of the speed of fluid and the diameter of passage, and square the reducing pro rata of the speed of the pressure of fluid and increase.

Because the inside of foam generation unit 180 is formed with passage that diameter differs from one another and the structure that is formed with air intake 190 in addition, so can produce foam through supplying air to washings.

Because an end of foam generation unit 180 is attached to the lower end of bucket 20, and second channel 182 is communicated with the lower end of bucket 20, containing under the situation of aforesaid foam, and the washings through second channel 182 are introduced in barrels 20.

Arm 124 can be connected flexible pipe 142 through first with first pump intake 161 and connect, and pump discharge 176 can be connected flexible pipe 144 through second with first passage 181 and connect.First connects flexible pipe 142 is connected flexible pipe 144 and is used between the flow periods of washings, preventing the generation revealed with second.Owing to be by processing such as elastomeric synthetic resin; Is connected flexible pipe 144 with second and can transmits washings reposefully so first connects flexible pipe 142, even connect flexible pipe 142 first and be connected flexible pipe 144 with second and barrels 20 o'clock also do not damage owing to external impact or internal vibration clash into.

Below, with describe the process that foam produces or washings are discharged in washings.

Fig. 7 is the view that flows that washings when in washings, producing foam are shown.Fig. 8 is the view that flows of washings when being illustrated in the discharging washings.

As shown in Figure 7, the washings in the bucket 20 are introduced in the passage housing 120 through first drainpipe 122.In this case, the valve 134 that is installed in second drainpipe, 126 places cuts out second drainpipe 126, thereby does not discharge through second drainpipe 126 through the washings that first drainpipe 122 is introduced.The washings of introducing through first drainpipe 122 flow under the state that prevents rib 132 filtrations through arm 124 at the foreign matter that foreign matter at first is set at arm 124 places.Subsequently, washings are introduced in pump case 152 through the first connection flexible pipe 142 and first pump intake 161.

The washings that are introduced in the pump case 152 are then prevented wall 164 secondary filters to be introduced in the motor joint portion 174 then through second accommodation section 172 by the foreign matter inflow in through first accommodation section 171.Simultaneously; Washings in the bucket 20 can directly be introduced in first accommodation section 171 of pump case 152 through second pump intake 162 under not through the situation of passageway housings body 120; To join with the washings that are incorporated into via passage housing 120 in first accommodation section 171, washings are introduced in motor joint portion 174 through second accommodation section 172 then.The washings that are introduced in motor joint portion 174 are sent to foam generation unit 180 via pump discharge 176 under the effect of impeller.

The washings that are sent to foam generation unit 180 are injected in the bucket 20 with the state that contains foam through first passage 181 and second channel 182 time once more.

As shown in Figure 8, when washings were discharged into washing machine 1 outside, the washings in the bucket 20 were through second drainpipe 126 or through 162 dischargings of second pump intake.In this case, valve 134 is opened second drainpipe 126, so that can discharge through second drainpipe 126 through the washings of first drainpipe 122.

The washings that second pump intake 162 on the top through being arranged on pump case 152 is introduced make the washings supercharging in the pump case 152, thereby the washings in pump case 152 can flow towards first pump intake 161.As a result, the washings that are introduced in first pump intake 161 can be under the effect of gravity flow towards the arm 124 that is arranged in the position lower relatively than the position of first pump intake 161 reposefully.

The washings that flow through arm 124 are discharged into the outside of washing machine 1 through second drainpipe 126.

The residual water that after the discharging washings, still possibly remain in second accommodation section 172 simultaneously, can be removed hole 173 is discharged into washing machine 1 via first pump intake 161 and second drainpipe 126 outside through residual water.

According to embodiments of the invention, a kind of method that is used to control washing machine is provided, said method comprises: in the process that washings is fed in the bucket, the horizontal plane of sensing washings; Determine whether to need to discharge to be fed to the washings in the bucket; Wherein, when the horizontal plane of washings was increased to the horizontal plane above predetermined altitude, second drainpipe was closed; Thereby washings are controlled as and are sent to pump; When confirming to need to discharge washings, drainpipe is opened, thereby washings are controlled as the outside that is discharged into washing machine through drainpipe.

It is obvious that through top description, according to washing machine according to exemplary embodiment of the present disclosure, and can be through producing the improvement that foam is realized scourability in the washings in being introduced in bucket.

In addition, according to the washing machine according to exemplary embodiment of the present disclosure, washings can promptly be discharged into the outside of washing machine.

Though illustrated and described embodiment more of the present disclosure; But those skilled in the art are to be understood that; Under the situation that does not break away from spirit of the present invention and principle, can make a change these embodiment, scope of the present invention is limited claim and equivalent thereof.

Claims

1. washing machine comprises:

Main body;

Bucket is arranged in the main body vertically;

The passage housing comprises first drainpipe and arm, and first drainpipe is connected to the bottom of bucket, and arm allows to be introduced in the bucket once more from the washings that first drainpipe is introduced;

Pump comprises pump case and motor, and pump case has first pump intake that is arranged in the position higher relatively than arm, and motor is attached to an end of pump case, aspirates the washings that are introduced in first pump intake with supplying power;

The foam generation unit is used for being produced foam by the washings of pump suction and being communicated with bucket.

2. washing machine according to claim 1, wherein, the passage housing also comprises second drainpipe, second drainpipe is communicated with first drainpipe, washings are directed to the outside of washing machine.

3. washing machine according to claim 1, wherein:

Arm comprises also that at least one foreign matter that is used for filtering the foreign matter that the washings introduced from first drainpipe contain flows into and prevents rib;

Foreign matter flows into and prevents that rib is outstanding from the interior perimeter surface of arm.

4. washing machine according to claim 1, wherein:

Pump case also comprises second pump intake of the lower end that is connected to bucket;

Second pump intake is arranged in than the relative higher position of first pump intake.

5. washing machine according to claim 4, wherein:

Be provided with the foreign matter that is used for the foreign matter that the washings in the filter vat contain flows into and prevents projection on the top of pump case;

Second pump intake is formed on the foreign matter inflow and prevents in the projection.

6. washing machine according to claim 1, wherein, pump case comprises also that the foreign matter that is used for filtering the foreign matter that the washings introduced from first pump intake contain flows into and prevents wall.

7. washing machine according to claim 6, wherein:

Foreign matter flows into and prevents that wall is arranged on the middle body of pump case;

The washings of introducing from first pump intake are introduced in foreign matter and flow into and prevent in the wall, are sucked into the foam generation unit then.

8. washing machine according to claim 6, wherein:

Pump case comprises motor joint portion and pump discharge, and the motor joint portion combines with the motor that is used for the washings that supplying power introduces from first pump intake or second pump intake with suction, and pump discharge is used for the washings that quilt is aspirated are directed to the foam generation unit;

Said pump discharge is arranged on the outer surface of motor joint portion, to be communicated with the motor joint portion.

9. washing machine according to claim 8, wherein:

Pump case comprises first accommodation section and second accommodation section; First accommodation section is used to hold the washings from first pump intake or the introducing of second pump intake; One end of second accommodation section is connected with first accommodation section, and the other end of second accommodation section is connected with the motor joint portion simultaneously;

First accommodation section and second accommodation section are flowed into by foreign matter and prevent the wall separation.

10. washing machine according to claim 9, wherein, foreign matter flows into and prevents that wall from also comprising residual water removal hole, is used for removing the residual washings in second accommodation section.

11. washing machine according to claim 1, wherein, the foam generation unit comprises:

First passage is introduced in the first passage by the washings of pump suction;

Second channel has the relative littler sectional area of sectional area than first passage;

Air intake is communicated with second channel, flows through in the washings of second channel to supply air to.

12. washing machine according to claim 2, wherein, second drainpipe is provided with valve, so that the washings of introducing from first drainpipe flow towards second drainpipe or arm.

13. washing machine according to claim 9 also comprises:

First connects flexible pipe, the connecting branch and first pump intake;

Second connects flexible pipe, connects pump discharge and foam generation unit.

14. method that is used to control washing machine; Said washing machine comprises main body, bucket, drainpipe, pump and foam generation unit; Bucket is arranged in the main body vertically, and drainpipe is communicated with bucket, and pump is arranged in the bottom of bucket; The foam generation unit produces foam in by the washings of pump suction, said method comprises:

In the process that washings is fed in the bucket, the horizontal plane of sensing washings;

Determine whether to need to discharge to be fed to the washings in the bucket,

Wherein, when the horizontal plane of washings was increased to the horizontal plane above predetermined altitude, drainpipe was closed; Thereby washings are controlled as and are sent to pump; When confirming to need to discharge washings, drainpipe is opened, thereby washings are controlled as the outside that is discharged into washing machine through drainpipe.