CN104514117B - Water-conservation washing machine and its control method - Google Patents
Water-conservation washing machine and its control method Download PDFInfo
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- CN104514117B CN104514117B CN201310456391.3A CN201310456391A CN104514117B CN 104514117 B CN104514117 B CN 104514117B CN 201310456391 A CN201310456391 A CN 201310456391A CN 104514117 B CN104514117 B CN 104514117B
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- inner barrel
- filter
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- 238000005406 washing Methods 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 164
- 238000001914 filtration Methods 0.000 claims abstract description 57
- 239000007921 spray Substances 0.000 claims abstract description 52
- 230000018044 dehydration Effects 0.000 claims abstract description 50
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 50
- 208000005156 Dehydration Diseases 0.000 claims description 48
- 239000012528 membrane Substances 0.000 claims description 35
- 238000004140 cleaning Methods 0.000 claims description 31
- 238000011045 prefiltration Methods 0.000 claims description 25
- 239000008237 rinsing water Substances 0.000 claims description 23
- 125000004122 cyclic group Chemical group 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 9
- 239000003599 detergent Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 10
- 239000013505 freshwater Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/10—Filtering arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The present invention relates to a kind of water-conservation washing machine and its control method, wherein, control method includes：Spray dehydration：Dewater treatment is sprayed at least one times after washing procedure is finished, and spray dewater treatment includes every time：Washing machine enters the clear water of the first scheduled volume, makes inner cylinder rotating, and entered water is circulated during inner cylinder rotary dehydration to be sprayed to inner cylinder, after such water circulation preset duration, the water that inner cylinder rotating is deviate from is drained into outside washing machine；Water inlet step：Washing machine enters the clear water of the second scheduled volume；Circulate rinse step：Introduce inner cylinder to carry out circulation rinsing by the water discharge of inner cylinder in rinse cycle and after filtering component filters.Present invention saves wash water, the residual quantity of detergent in clothing is reduced, and cost is relatively low.
Description
Technical Field
The invention relates to the technical field of laundry control, in particular to a water-saving washing machine and a control method thereof.
Background
Conventional washing machines typically require multiple rinses after washing. No matter whether the clothes are clean or not in each process, a large amount of clean water needs to be replaced and used again, and the clean water is wasted greatly.
In order to save the washing water, the prior art proposes to purify the used washing water for reuse. For example, the prior art is that water for washing is collected by a water storage tank, and the water is simply filtered by a filter screen and then applied to next washing; and for example, the second prior art uses large-scale auxiliary equipment such as an ozone generator to purify and utilize the washing water.
In the prior art, a water storage tank needs to be additionally arranged, filtered water cannot be recycled in the washing, washing water is simply treated by a filter screen, and the residual quantity of washing substances in clothes is large by adopting the washing clothes; in addition, the prior art depends on large-scale auxiliary equipment such as an ozone generator and the like, and the cost is high.
Disclosure of Invention
The following presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.
The invention provides a water-saving washing machine and a control method thereof, which are used for saving washing water and reducing the residual quantity of washing substances in clothes and have lower cost.
In one aspect, the present invention provides a control method of a water-saving washing machine, including:
a spray dehydration step: after the washing program is executed, at least one time of spray dehydration treatment is carried out, and each time of spray dehydration treatment comprises the following steps: the washing machine is fed with clean water with a first preset amount to rotate the inner cylinder, the fed water is circulated in the process of rotating and dehydrating the inner cylinder to spray to the inner cylinder, and the water which is rotated and dehydrated by the inner cylinder is discharged out of the washing machine after the water is circulated for a preset time;
water inlet step: the washing machine enters a second preset amount of clean water;
a step of cyclic rinsing: and in the rinsing process, water in the inner barrel is discharged, filtered by the filtering component and then introduced into the inner barrel for circular rinsing.
In another aspect, the present invention provides a water saving washing machine comprising:
the spray dehydration control module is used for carrying out at least one time of spray dehydration treatment after the execution of the washing program is finished, and each time of spray dehydration treatment comprises the following steps: after the washing machine enters clean water with a first preset amount, the inner barrel is rotated, the entered water is circulated in the process of rotating and dehydrating the inner barrel to spray to the inner barrel, and after the water circulation is carried out for a preset time, the water which is dehydrated by rotating the inner barrel is discharged out of the washing machine;
the water inlet control module is used for feeding clean water with a second preset amount into the washing machine;
and the circulating rinsing control module is used for discharging water in the inner barrel in the rinsing process, filtering the water by the filtering component and introducing the water into the inner barrel for circulating rinsing.
The technical scheme provided by the invention combines spray dehydration and circular rinsing: on one hand, after the washing program is finished, the spraying dehydration control is carried out, and the water is introduced for cyclic utilization in the spraying dehydration control, so that the utilization rate of the clean water entering the inner drum of the washing machine is improved to a certain extent, more washing substance residues can be removed by adopting the same clean water amount, the cleanliness of clothes is met, and the water consumption is reduced as much as possible; on the other hand, the rinsing water is recycled after being purified through the cyclic rinsing control, so that the washing water is obviously saved. The technical scheme provided by the invention does not need to depend on large-scale auxiliary equipment such as an ozone generator and the like, so the cost is lower.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a control method of a water-saving washing machine according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a water-saving washing machine according to a second embodiment of the present invention;
fig. 3 is an alternative structural schematic diagram of a water-saving washing machine provided by a third embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Elements and features depicted in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that the figures and description omit representation and description of components and processes that are not relevant to the present invention and that are known to those of ordinary skill in the art for the sake of clarity. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Fig. 1 is a flowchart of a control method of a water-saving washing machine according to an embodiment of the present invention. As shown in fig. 1, the control method provided in this embodiment includes:
step 11, spray dehydration: after the washing program is executed, at least one time of spray dehydration treatment is carried out, and each time of spray dehydration treatment comprises the following steps: the washing machine is supplied with clean water with a first preset amount to rotate the inner barrel, the supplied water is circulated in the process of rotating and dehydrating the inner barrel to spray to the inner barrel, and the water which is rotated and dehydrated by the inner barrel is discharged out of the washing machine after the water is circulated for a preset time.
The laundry in the drum may be subjected to a washing process using a washing step before step 11. The embodiments of the present invention do not limit the specific implementation manner of the washing step, for example, the washing step may adopt a conventional washing manner to wash the clothes in the inner tub, and discharge the washing water in the inner tub to the outside of the washing machine. In order to drain the residual washing water on the clothes as far as possible, the washing water can be naturally drained out of the washing machine, and then the clothes in the inner drum are dehydrated. After the washing step is finished, step 11 is executed, i.e. a spray dewatering step is executed.
Step 12, water inlet step: the washing machine enters a second preset amount of clean water;
step 13, a cyclic rinsing step: and in the rinsing process, water in the inner barrel is discharged, filtered by the filtering component and then introduced into the inner barrel for circular rinsing.
And recycling the clean water entering the step 12 in the cyclic rinsing process. Optionally, an outer barrel communicated with the inner barrel can be arranged outside the inner barrel of the water-saving washing machine, and a first water circulation channel is formed by a pipeline from any water outlet of the outer barrel to any water inlet of the outer barrel through the filtering component. In the circulating rinsing process, the first water circulation channel is conducted, rinsing water in the inner barrel is discharged and is introduced into the inner barrel after being filtered by the filtering assembly, the water is circulated until the circulating rinsing time reaches a preset time, the rinsing is finished, the rinsing water in the inner barrel is discharged out of the washing machine, and clothes in the inner barrel are dried.
The technical scheme provided by the embodiment combines spray dewatering and cyclic rinsing: on one hand, after the washing program is finished, the spraying dehydration control is carried out, and the water is introduced for cyclic utilization in the spraying dehydration control, so that the utilization rate of the clean water entering the inner drum of the washing machine is improved to a certain extent, more washing substance residues can be removed by adopting the same clean water amount, the cleanliness of clothes is met, and the water consumption is reduced as much as possible; on the other hand, the rinsing water is recycled after being purified through the cyclic rinsing control, so that the washing water is obviously saved. The technical scheme provided by the invention does not need to depend on large-scale auxiliary equipment such as an ozone generator and the like, so the cost is lower.
In the above technical solution, optionally, the spray dehydration treatment may be performed once; or, in order to meet the requirement of ideal residual alkalinity of the clothes, the spray dehydration treatment can be executed for multiple times, and the next spray dehydration treatment process is executed after the end of one spray dehydration treatment process. In each spraying dehydration treatment process, the inner cylinder rotates at a first rotating speed before water circulation is finished, the inner cylinder rotates at a second rotating speed after the water circulation is finished, and the second rotating speed is equal to or greater than the first rotating speed.
The amount of fresh water taken in for each spray dewatering treatment (i.e., the first predetermined amount) is smaller than the amount of fresh water taken in step 12 (i.e., the second predetermined amount). In other words, the amount of fresh water taken in before the start of rinsing is related to the weight of the laundry and needs to run over the surface of the laundry; in the spray dehydration step, the water quantity required by each spray dehydration treatment is very small, and the water quantity requirement of overflowing the surface of the clothes is not met. The small amount of repeated spray dehydration can improve the utilization rate of the fresh water to bring away the alkalinity residue on the clothes as far as possible, thereby saving the water consumption under the condition of reaching the same cleaning rate.
Optionally, the control method of the water-saving washing machine may further include a filter assembly washing step: and cleaning the filter assembly. The execution sequence of the cleaning steps of the filter assembly is very flexible.
For example, in an alternative implementation, the filter assembly cleaning step is performed after the cyclic rinsing step, such as: automatically starting to clean the filtering component after the circulating rinsing step; this scheme is in time washd filter assembly after filter assembly uses, effectively guarantees filter assembly's cleanness, extension filter assembly's life.
For another example, in another alternative implementation, the filter assembly cleaning step is performed during the execution of the cyclic rinsing step, such as: and performing the filtering assembly cleaning step at least once during the execution of the circulating rinsing step, and stopping filtering the discharged water of the inner cylinder during the execution of the filtering assembly cleaning step. That is, in the process of executing the circulating rinsing step, if the filter assembly needs to be cleaned, water which is not discharged outwards in the inner cylinder or is discharged out of the inner cylinder is not introduced into the inner cylinder any more and is used for cleaning the filter assembly; after the filter assembly is cleaned, water in the inner cylinder is discharged, filtered by the filter assembly and then introduced into the inner cylinder; the washing of the laundry may be continued during the execution of the circulation rinsing step regardless of whether the filtering assembly is washed or not. According to the scheme, the cleaning of the filter assembly can be started according to actual needs, the implementation mode is flexible, the cleanness of the filter assembly is guaranteed, and the service life of the filter assembly is prolonged.
Optionally, the step of cleaning the filter assembly includes: a gas washing step and a water washing step. Air washing: the control gas passes through the filter assembly to blow away the dirt intercepted on the filter membrane of the filter assembly. And (3) water washing: the filter membrane is rinsed with water and the rinsed water is drained outside the washing machine.
The execution time sequence of the air washing step and the water washing step can be set according to actual needs, so that the realization mode of cleaning the filtering component is very flexible, and the diversified requirements of actual application can be better met.
In an alternative implementation, the gas washing step and the water washing step may be performed in time division. For example: the gas washing step may be performed first and then the water washing step may be performed. This scheme carries out air wash and washing to filtering component successively, and the filth that looses the effect through gaseous at first peels off the filter membrane surface with the filter membrane surface, and then washes with the water, so compare with solitary washing, the sparge water can be saved to this scheme, and when having overcome solitary washing in addition, the shortcoming that the filth was difficult to wash on the milipore filter, can be with the abluent cleaner, thorough of filter membrane.
In another alternative implementation, the gas washing step and the water washing step may be performed simultaneously. For example: and flushing the filter membrane with water while controlling the gas to pass through the filter assembly to blow away the dirt intercepted on the filter membrane of the filter assembly, and discharging the flushed water to the outside of the washing machine. This scheme carries out air wash and washing simultaneously to filtering component, compares with solitary washing, can save the sparge water, and when having overcome solitary washing moreover, the shortcoming that the filth was difficult for washing off on the milipore filter can be with abluent cleaner, thorough of milipore filter.
Further alternatively, in the circulation rinsing step, the water discharged from the inner drum may be filtered in multiple stages. For example: the filtering component can comprise a pre-filter and a filtering membrane component, and water in the inner barrel is discharged in the rinsing process, is respectively filtered by the pre-filter and the filtering membrane component in sequence and then is introduced into the inner barrel. The cost of the pre-filter such as a filter screen structure is usually lower than that of a filtering membrane component such as an ultrafiltration membrane component, and the pre-filter is easier to clean and replace compared with the latter.
Further optionally, a turbidity detecting step may be further included between the water feeding step and the cyclic rinsing step: and detecting the turbidity of rinsing water in the inner barrel after the rinsing is carried out for a preset time, if the turbidity detection value exceeds a set threshold value, discharging the rinsing water out of the washing machine, and if not, executing the circulating rinsing step. According to the scheme, after the second preset amount of clean water is fed, the clothes in the inner drum can be normally rinsed for a preset time, namely, the rinsing water in the inner drum is not filtered during the normal rinsing. After ordinary rinsing, the turbidity that accessible turbidity sensor carried out the rinsing water detects, and through turbidity detected value and the comparative result of setting for the threshold value, judge whether need filter and recycle rinsing water, make the water that gets into filtration membrane module comparatively clean from this, be favorable to prolonging filtration membrane module's maintenance cycle and life.
Fig. 2 is a schematic block diagram of a water-saving washing machine according to a second embodiment of the present invention. As shown in fig. 2, the water-saving washing machine provided by the present embodiment includes: a spray dehydration control module 21, a water inlet control module 22 and a spray dehydration control module 23.
The spray dehydration control module 21 is used for performing at least one spray dehydration treatment after the washing program is executed, and each spray dehydration treatment comprises: after the washing machine enters clean water with a first preset amount, the inner barrel rotates, the entered water is circulated in the process of the inner barrel rotating dehydration so as to spray to the inner barrel, and after the water circulation is carried out for a preset time, the water dehydrated by the inner barrel rotating is discharged out of the washing machine.
The inlet control module 22 is used to supply a second predetermined amount of fresh water to the washing machine.
The circulation rinsing control module 23 is used for discharging water of the inner tub during rinsing, filtering the water by the filtering assembly, and introducing the water into the inner tub for circulation rinsing.
The water-saving washing machine provided by the embodiment combines spray dewatering and circulating rinsing: on one hand, after the washing program is finished, the spraying dehydration control is carried out, and the water is introduced for cyclic utilization in the spraying dehydration control, so that the utilization rate of the clean water entering the inner drum of the washing machine is improved to a certain extent, more washing substance residues can be removed by adopting the same clean water amount, the cleanliness of clothes is met, and the water consumption is reduced as much as possible; on the other hand, the rinsing water is recycled after being purified through the cyclic rinsing control, so that the washing water is obviously saved. The technical scheme provided by the invention does not need to depend on large-scale auxiliary equipment such as an ozone generator and the like, so the cost is lower.
In the above technical solution, optionally, the spray dehydration control module 21 may perform one or more spray dehydration processes. In each spraying dehydration treatment process, the inner cylinder rotates at a first rotating speed before water circulation is finished, the inner cylinder rotates at a second rotating speed after the water circulation is finished, and the second rotating speed is equal to or greater than the first rotating speed. The amount of fresh water (i.e., the first predetermined amount) taken by the spray dehydration control module 21 for each spray dehydration process is smaller than the amount of fresh water (i.e., the second predetermined amount) taken by the water intake control module 22. In other words, the fresh water that advances from the beginning of rinsing is related to the weight of the clothes and needs to flow over the surface of the clothes; in the spray dehydration step, the water quantity required by each spray dehydration treatment is very small, and the water quantity requirement of overflowing the surface of the clothes is not met. The small amount of repeated spray dehydration can improve the utilization rate of the fresh water to bring away the alkalinity residue on the clothes as far as possible, thereby saving the water consumption under the condition of reaching the same cleaning rate.
On the basis of the above technical scheme, the water-saving washing machine may further include: and the filtering component cleaning control module. The filtering component cleaning control module is used for cleaning and controlling the filtering component.
Optionally, the filter assembly cleaning control module starts to operate after the circulation rinsing control module finishes operating. This scheme is in time washd filter assembly after filter assembly uses, effectively guarantees filter assembly's cleanness, extension filter assembly's life.
Or, optionally, the filter assembly cleaning control module operates at least once during the operation of the circulation rinsing control module, and stops filtering the discharged water of the inner tub each time the filter assembly cleaning step is performed. According to the scheme, the cleaning of the filter assembly can be started according to actual needs, the implementation mode is flexible, the cleanness of the filter assembly is guaranteed, and the service life of the filter assembly is prolonged.
Optionally, the filter assembly cleaning control module includes: a gas washing control unit and a water washing control unit. And the air washing control unit is used for controlling air to pass through the filtering component so as to blow away dirt intercepted on a filter membrane of the filtering component. And the water washing control unit is used for controlling water flow to wash the filter membrane and discharging the washed water out of the washing machine.
The filter assembly washs control module operation in-process, and gas wash the execution chronogenesis of control unit and washing control unit can set up according to actual need, for example when running filter assembly washs control module at every turn, and timesharing operation or operation gas wash the control unit and wash the control unit simultaneously, consequently very nimble to the abluent realization mode of filter assembly, can better satisfy practical application's diversified demand.
For example: when the filter assembly cleaning control module is operated every time, the gas washing control unit is operated firstly, and then the water washing control unit is operated. Another example is: and when the filtering component cleaning control module is operated every time, the air washing control unit and the water washing control unit are operated simultaneously. Compared with the independent washing, the scheme can save washing water, overcomes the defect that dirt is not easy to wash off the filter membrane when the filter membrane is washed by the independent washing, and can clean the filter membrane more cleanly and thoroughly.
The filter assembly comprises a pre-filter and a filter membrane assembly; and in the rinsing process, water in the inner barrel is discharged, sequentially filtered by the pre-filter and the filtering membrane component and then introduced into the inner barrel. The cost of the pre-filter such as a filter screen structure is usually lower than that of a filtering membrane component such as an ultrafiltration membrane component, and the pre-filter is easier to clean and replace compared with the latter.
On the basis of the technical scheme, the water-saving washing machine also comprises a turbidity detection module. The turbidity detection module is used for detecting the turbidity of rinsing water in the inner barrel after rinsing for a preset time, if the turbidity detection value exceeds a set threshold value, the rinsing water is discharged out of the washing machine, and otherwise, the circulating rinsing module is operated. According to the scheme, whether the rinsing water needs to be filtered and recycled is judged through the comparison result of the turbidity detection value of the rinsing water and the set threshold value, so that the water entering the filtering membrane component is relatively clean, and the maintenance period and the service life of the filtering membrane component are prolonged.
An optional structure of the water-saving washing machine provided by the embodiment of the invention is described below, and an optional embodiment of the control method of the water-saving washing machine of the invention is further described in combination with the structure. The structure and the flow are only an optional implementation manner, and should not be construed as limiting the spirit of the technical solution of the present invention.
Fig. 3 is an alternative structural schematic diagram of a water-saving washing machine provided by a third embodiment of the invention. As shown in fig. 3, the water-saving washing machine according to the embodiment of the present invention includes: the device comprises a water inlet valve 1, an inner barrel 2, an outer barrel 3, a spray header 4, a drainage pump 5, a first three-way valve 6, a first valve 7, a second valve 8, a filtering membrane component 9, an air pump 10, a second three-way valve 11, a turbidity sensor 12 and a pre-filter 13. Letters a, b, c, d, e, f, g, h, I, J in fig. 3 respectively indicate corresponding pipes of the water-saving washing machine. An optional control method of the above water-saving washing machine includes:
(1) a washing step: tap water (namely clean water) enters the outer cylinder 3 through the pipeline a and the water inlet valve 1, the outer cylinder 3 is communicated with the inner cylinder 2, and the clean water overflows the surface of the clothes to be washed in the inner cylinder 2 to carry out conventional washing on the clothes. After washing, the washing water is discharged out of the washing machine through the pipeline b, the pipeline c, the pre-filter 13 and the pipeline h in sequence. The laundry is spin-dried, thereby completing the washing process.
(2) A spraying and spin-drying step: a first three-way valve 6 closes a loop from the pipeline c to the pipeline e and communicates the pipeline c and the pipeline d, a water inlet valve 1 is opened to feed a first preset amount of clean water into the inner barrel 2 to rotate the inner barrel 2, a drainage pump 5 is opened in the rotary dehydration process of the inner barrel 2, and the loop from the pipeline b, the pipeline c, the pipeline d and the spray nozzle 4 is communicated to circulate the fed water to spray the inner barrel, so that the residual alkalinity of clothes is reduced, and the residual quantity of washing powder is reduced; after the water circulation is carried out for a preset time, the inner cylinder 2 is continuously rotated, the first three-way valve 6 is opened and switched to be communicated with the pipeline c, the pre-filter 13 and the pipeline h, and the water removed by the rotation of the inner cylinder is discharged out of the washing machine. The process is a primary spray dehydration treatment. The spraying and dewatering treatment can be repeated for a plurality of times.
(3) Water inlet step: the water inlet valve 1 is opened, and clean water with a second preset quantity is fed into the inner barrel through the pipeline a, wherein the second preset quantity is larger than the first preset quantity.
(4) A step of cyclic rinsing: after rinsing for a set period of time, the turbidity of the rinse water is detected by the turbidity sensor 12. And if the turbidity detection value is lower than the set threshold value, performing cyclic rinsing, namely: in the rinsing process, rinsing water discharged from the inner cylinder sequentially passes through the drainage pump 5, the pipeline b, the pipeline c, the first three-way valve 6, the pre-filter 13, the first valve 7, the pipeline e and the pipeline f to enter the filtering membrane component 9 for filtering treatment, and the filtered water is introduced into the inner cylinder 2 through the pipeline g for circular rinsing.
Of course, if the turbidity detection value exceeds the set threshold value, the rinsing water in the inner drum is directly discharged out of the washing machine through the pipeline b, the pipeline c, the pre-filter 13 and the pipeline h. In this case, the inner tub 2 can be rinsed again with clean water, and the description thereof is omitted.
(5) And (3) cleaning a filtering assembly:
the first three-way valve 6 and the first valve 7 are closed, the second three-way valve 11 is opened, the air pump 10 is opened, the second valve 8 is opened, a pre-filter air washing loop is formed through the pipeline I, the pipeline K, the pre-filter 13, the pipeline h and the second three-way valve 11, and air flow carries out air washing on the pre-filter through the pre-filter air washing loop; after the air washing is finished, the air pump 10 is closed, the first three-way valve 6 is opened to communicate the pipeline b, the pipeline c, the pre-filter 13 and the pipeline h, the rinsing water in the inner cylinder passes through the drainage pump 5 to carry out water washing on the pre-filter, and the washed water enters the second three-way valve 11 and is discharged out of the washing machine.
After the pre-filter is cleaned, the filtering membrane assembly is cleaned: the first three-way valve 6, the first valve 7 and the second three-way valve 11 are all closed, the air pump 10 is opened, and the air flow passes through the second valve 8, the pipeline I, the pipeline f, the filtering membrane component 9 and the pipeline J to form a filtering membrane component air washing loop so as to carry out air washing on the filtering membrane component. After the air washing is finished, the air pump 10 is closed, the first three-way valve 6 is opened to communicate the pipeline b with the pipeline e, the pre-filter 13 and the pipeline f, and the rinsing water in the inner cylinder carries out water washing on the filtering membrane component through the drainage pump 5.
(6) Spin-drying and dewatering: and after the filtering component is cleaned, discharging the residual rinsing water in the inner barrel to the outside of the washing machine, carrying out spin-drying dehydration on the clothes in the inner barrel, and discharging the dehydrated water to the outside of the washing machine.
By adopting the technical scheme, the washing water is obviously saved, and the residual quantity of washing substances in clothes is reduced.
The spray drying step is carried out after the washing step is selected, and then the circulating rinsing step is carried out, so that the surfactant and the like can be removed through the spray drying step, the times of cleaning the filtering component which is blocked in the circulating rinsing step are reduced, and the service life of the filtering component is prolonged.
In the above embodiments of the present invention, the serial numbers of the embodiments are only for convenience of description, and do not represent the merits of the embodiments. The description of each embodiment has different emphasis, and for parts which are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other media capable of storing program codes.
In the embodiments of the apparatus and method of the present invention, it is apparent that the components or steps may be disassembled, combined, and/or reassembled after disassembly. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, in the above description of specific embodiments of the invention, features described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features in the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
Finally, it should be noted that: although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, devices, means, methods, or steps.
Claims (7)
1. A control method of a water-saving washing machine, characterized by comprising:
a spray dehydration step: after the washing program is executed, at least one time of spray dehydration treatment is carried out, and each time of spray dehydration treatment comprises the following steps: the washing machine is fed with clean water with a first preset amount to rotate the inner cylinder, the fed water is circulated in the process of rotating and dehydrating the inner cylinder to spray to the inner cylinder, and the water which is rotated and dehydrated by the inner cylinder is discharged out of the washing machine after the water is circulated for a preset time;
water inlet step: the washing machine enters a second preset amount of clean water;
and (3) turbidity detection: detecting the turbidity of rinsing water in the inner barrel after rinsing for a preset time, if the turbidity detection value exceeds a set threshold value, discharging the rinsing water out of the washing machine, otherwise, executing the cyclic rinsing step;
a step of cyclic rinsing: in the rinsing process, water in the inner barrel is discharged, filtered by the filtering component and then introduced into the inner barrel for circular rinsing;
wherein the filter assembly comprises a pre-filter and a filter membrane assembly; and in the rinsing process, water in the inner barrel is discharged, sequentially filtered by the pre-filter and the filtering membrane component and then introduced into the inner barrel.
2. The control method of the water saving washing machine according to claim 1, further comprising:
and (3) cleaning a filtering assembly: and cleaning the filter assembly.
3. The control method of a water saving washing machine according to claim 2,
performing at least one cleaning step of the filter assembly after the end of the cyclic rinsing step;
or,
and performing the filtering assembly cleaning step at least once during the execution of the circulating rinsing step, and stopping filtering the discharged water of the inner barrel each time the filtering assembly cleaning step is performed.
4. The control method of a water saving washing machine according to claim 1, wherein in each of the spray dehydration processes, the inner tub is rotated at a first rotation speed before the water circulation is finished, and the inner tub is rotated at a second rotation speed equal to or greater than the first rotation speed after the water circulation is finished.
5. The control method of the water saving washing machine according to claim 1, wherein the second predetermined amount is greater than the first predetermined amount.
6. A water-saving washing machine characterized by comprising:
the spray dehydration control module is used for carrying out at least one time of spray dehydration treatment after the execution of the washing program is finished, and each time of spray dehydration treatment comprises the following steps: after the washing machine enters clean water with a first preset amount, the inner barrel is rotated, the entered water is circulated in the process of rotating and dehydrating the inner barrel to spray to the inner barrel, and after the water circulation is carried out for a preset time, the water which is dehydrated by rotating the inner barrel is discharged out of the washing machine;
the water inlet control module is used for feeding clean water with a second preset amount into the washing machine;
the turbidity detection module is used for detecting the turbidity of rinsing water in the inner barrel after rinsing for a preset time, if the turbidity detection value exceeds a set threshold value, the rinsing water is discharged out of the washing machine, and otherwise, the circulating rinsing module is operated;
the circulating rinsing control module is used for discharging water in the inner barrel in the rinsing process, filtering the water by the filtering component and introducing the water into the inner barrel for circulating rinsing;
wherein the filter assembly comprises a pre-filter and a filter membrane assembly; and in the rinsing process, water in the inner barrel is discharged, sequentially filtered by the pre-filter and the filtering membrane component and then introduced into the inner barrel.
7. The water-saving washing machine according to claim 6, further comprising:
and the filtering component cleaning control module is used for cleaning the filtering component.
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| CN109023834B (en) * | 2017-06-09 | 2022-05-03 | 合肥海尔滚筒洗衣机有限公司 | Drainage control method of washing machine and washing machine |
| CN113493989A (en) * | 2020-04-02 | 2021-10-12 | 青岛海尔滚筒洗衣机有限公司 | Washing machine and circulating spraying control method thereof |
| CN114232279A (en) * | 2021-12-23 | 2022-03-25 | 珠海格力电器股份有限公司 | Intermittent spraying dewatering rinsing method and washing device |
| CN114182481B (en) * | 2021-12-23 | 2022-12-16 | 珠海格力电器股份有限公司 | Washing method of washing device based on water inlet parameters and washing device |
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