WO2014206314A1

WO2014206314A1 - Laundry control method and washing machine

Info

Publication number: WO2014206314A1
Application number: PCT/CN2014/080838
Authority: WO
Inventors: 李光辉; 王春旭; 郝世龙; 劳春峰; 许升
Original assignee: 海尔集团技术研发中心; 海尔集团公司
Priority date: 2013-06-28
Filing date: 2014-06-26
Publication date: 2014-12-31
Also published as: CN104294530A; CN104294530B

Abstract

Disclosed are a laundry control method and a washing machine. The method comprises: after a washing step has been concluded, introducing a first predetermined amount of clean water into an inner drum (3) of the washing machine; circulating and rinsing: during the rinsing process, guiding through a first water circulation channel of the washing machine to discharge water from inside the inner drum and introducing the water into the inner drum (3) after filtering same through a filter component, and after rinsing has concluded, discharging the water from inside the inner drum (3) out of the washing machine; spraying and water-removal: performing at least one spraying and water-removal process, each spraying and water-removal process comprising: introducing a second predetermined amount of clean water into the inner drum (3), making the inner drum (3) rotate, guiding through a second water circulation channel of the washing machine to spray water which was spun out during the rotation of the inner drum (3) onto clothing inside the inner drum (3), and after a second length of time for such water circulation, continuing to rotate the inner drum (3) and discharging the water which was spun out during the rotation of the inner drum (3) out off the washing machine, thereby saving water used for laundry, reducing the residual amount of washing substance in the clothing and keeping costs relatively low.

Description

Laundry control method and washing machine

The present invention relates to the field of laundry control technology, and more particularly to a laundry control method and a laundry machine. Background technique

Conventional washing machines typically require multiple rinses after washing. In every process, whether the clothes are clean or not, it is necessary to replace and use a large amount of clean water, resulting in a lot of waste of water.

In order to save laundry water, the prior art proposes a scheme in which the used laundry water is purified and then reused. For example, in the prior art, the water for collecting the laundry is collected by the water storage tank, and the filter is simply filtered and applied to the next laundry. For example, in the prior art, the washing water is purified and used by using a large auxiliary device such as an ozone generator.

In the above prior art, a water storage tank needs to be added, and the filtered water cannot be recycled in the laundry, and the washing water is simply processed by the filter net, and the washing liquid in the laundry is generally used; There are technologies that rely on large auxiliary equipment such as ozone generators, which are costly. Summary of the invention

A brief summary of the invention is set forth below in order to provide a basic understanding of certain aspects of the invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical aspects of the invention, and is not intended to limit the scope of the invention. Its purpose is to present some concepts in a simplified form as a pre-

The present invention provides a laundry control method and a washing machine for saving laundry water, reducing the residual amount of washing substances in the laundry, and having a low cost.

In one aspect, the present invention provides a laundry control method comprising:

Influent step: after the end of the washing step, a first predetermined amount of clean water is introduced into the inner cylinder of the washing machine; a circulating rinsing step: turning on the first water circulation passage of the washing machine during the rinsing to discharge the water in the inner cylinder and passing through the filter assembly After being filtered, it is introduced into the inner cylinder, and after the rinsing is finished, the water in the inner cylinder is discharged outside the washing machine;

Spray dehydration step: Perform at least one spray dehydration treatment, each spray dehydration treatment includes: Inserting a second predetermined amount of clean water into the inner cylinder to rotate the inner cylinder, and turning on the second water circulation passage of the washing machine to spray the water pumped out during the rotation of the inner cylinder to the clothes in the inner cylinder, so that the water circulation is preset After the length of time, continue to rotate the inner cylinder and drain the water from the inner cylinder during the rotation of the inner cylinder.

In another aspect, the present invention provides a washing machine comprising:

a water inlet control module for controlling the influent water to introduce a first predetermined amount of clean water into the inner cylinder of the washing machine after the washing step ends;

a circulating rinsing control module, configured to turn on the first water circulation passage of the washing machine during the rinsing process to discharge the water in the inner cylinder and filter through the filtering component, and then introduce the water in the inner cylinder into the inner cylinder, and after the rinsing is finished, drain the water in the inner cylinder out of the washing machine ;

The spray dehydration control module is configured to perform at least one spray dehydration treatment, and each spray dehydration treatment comprises: inserting a second predetermined amount of clean water into the inner cylinder to rotate the inner cylinder, and opening the second water circulation passage of the washing machine to The water pumped out during the rotation of the inner cylinder is sprayed onto the clothes in the inner cylinder. After the water circulation is preset for a predetermined period of time, the inner cylinder is continuously rotated and the water discharged during the rotation of the inner cylinder is discharged outside the washing machine.

In still another aspect, the present invention also provides a washing machine, comprising:

An outer cylinder, an inner cylinder disposed in and communicating with the outer cylinder, a pre-filter, a filter membrane assembly, and a showerhead for spraying into the inner cylinder; the outer cylinder being provided with at least one water inlet and at least one a drain port; a first water circulation passage is formed from any of the outlet ports of the outer cylinder through the pre-filter and the filter membrane assembly to any of the water inlets of the outer cylinder;

A second water circulation passage is formed from a line from any of the drain ports of the outer cylinder to the shower head.

The technical solution provided by the invention combines the cycle rinsing and the spray dehydration, on the one hand, the circulating rinsing control is used to recycle the rinsing water after the treatment, and the washing water is obviously saved; on the other hand, the spray dehydration control is introduced in the dehydration control. In addition, the recycling of water is introduced in the spray dewatering control, so that the utilization rate of the clean water entering the inner cylinder of the washing machine is improved to a certain extent, so that the same amount of clean water can be used to remove more residual detergent substances, and the laundry cleanliness can be satisfied. At the same time, the water consumption is reduced as much as possible. Since the technical solution provided by the present invention does not need to rely on large auxiliary equipment such as an ozone generator, the cost is low. 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 embodiments or the description of the prior art will be briefly described below, obviously, the following The drawings in the description are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a flow chart of a laundry control method according to Embodiment 1 of the present invention;

2 is a schematic block diagram of a washing machine according to a second embodiment of the present invention;

FIG. 3 is a schematic diagram of an optional structure of a washing machine according to Embodiment 3 of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. The elements and features described in one of the figures or one embodiment of the invention may be combined with elements and features illustrated in one or more other figures or embodiments. It should be noted that, for the sake of clarity, representations and descriptions of components and processes that are not known to those of ordinary skill in the art are omitted in the drawings and the description. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the invention.

1 is a flow chart of a laundry control method according to Embodiment 1 of the present invention. As shown in FIG. 1, the laundry control method provided in this embodiment includes:

Step 11. Influent step: After the end of the washing step, a first predetermined amount of clean water is introduced into the inner cylinder of the washing machine.

The washing process may be performed on the laundry in the inner cylinder before the step 11. The embodiments of the present invention do not limit the specific implementation of the washing step. For example, the washing step may wash the laundry in the inner cylinder by a conventional washing method, and discharge the washing water in the inner cylinder out of the washing machine. In order to drain the washing water remaining on the laundry as much as possible, the washing water can be naturally discharged outside the washing machine, and then the laundry in the inner cylinder is dehydrated.

After the end of the washing step, a first predetermined amount of fresh water such as tap water may be introduced into the inner cylinder to perform rinsing of the laundry. The amount of the clean water can be set in advance or can be automatically determined according to the amount of the laundry in the inner cylinder, which is not limited by the present invention.

Step 12: a cycle rinsing step: the first water circulation channel of the washing machine is turned on during the rinsing process to discharge the water in the inner cylinder and filter through the filter assembly, and then introduce the water in the inner cylinder into the inner cylinder. After the rinsing, the water in the inner cylinder is discharged outside the washing machine. . The fresh water in step 11 is recycled during the cycle rinsing. Optionally, an outer cylinder communicating with the inner cylinder may be disposed outside the inner cylinder of the washing machine, and any drain port of the outer cylinder passes through the pipeline between the filter assembly and any water inlet of the outer cylinder to form a first water circulation passage. . During the circulating rinsing process, the first water circulation channel is turned on, the rinsing water in the inner cylinder is discharged and filtered through the filter assembly, and then introduced into the inner cylinder, so that the water circulation until the circulating rinsing time reaches a preset length, the rinsing is finished, and the inner cylinder is rinsed. The water drains out of the washing machine.

Step 13, the spray dewatering step: performing at least one spray dewatering treatment, each spray dewatering treatment comprises: feeding a second predetermined amount of clean water into the inner cylinder, rotating the inner cylinder, and opening the second water circulation passage of the washing machine to The water pumped out during the rotation of the inner cylinder is sprayed onto the clothes in the inner cylinder. After the water circulation is preset for a predetermined period of time, the inner cylinder is continuously rotated and the water discharged during the rotation of the inner cylinder is discharged outside the washing machine.

The laundry control method provided by the embodiment combines the circulating rinsing and the spray dehydration, and on the other hand, the circulating rinsing control is used to recycle the rinsing water after the treatment, thereby obviously saving the washing water; on the other hand, the spraying is introduced in the dehydration control. Dehydration control and introduction of water recycling in the spray dewatering control, thus improving the utilization rate of the clean water entering the inner cylinder of the washing machine to a certain extent, so that the same amount of clean water can be used to remove more washing material residue and satisfy the clothes. Cleanliness while minimizing water usage. Since the technical solution provided by the present invention does not need to rely on a large accessory device such as an ozone generator, the cost is low.

Alternatively, the spray dewatering treatment may be performed once; or, in order to achieve the desired laundry residue alkalinity requirement, the spray dewatering treatment may be performed multiple times, and the next spray dehydration is performed after the end of the spray dewatering treatment process. Process flow. During each of the spray dewatering treatments, the inner cylinder rotates at a first rotation speed before the end of the water circulation, and after the water circulation ends, the inner cylinder rotates at a second rotation speed, and the second rotation speed is equal to or greater than the first rotation speed. On the basis of ensuring the effective duration of spraying, the time required for dehydration after the end of spraying is shortened.

The total amount of fresh water (first predetermined amount) entering the water inflow step 11 is greater than the total amount of clean water (second predetermined amount) introduced in the spray dewatering treatment step in step 13. In other words, the incoming fresh water before the start of the rinsing is related to the weight of the laundry, and needs to flow over the surface of the laundry (in some embodiments, the clean water before the rinsing starts may also not flow over the surface of the laundry); and the spray dehydration In the step, the amount of water required for each spray dewatering treatment is small, and there is no requirement for the amount of water flowing over the surface of the laundry. A small number of spray dewatering can improve the utilization rate of the cleaned water, so as to take away the alkalinity residue on the clothes as much as possible, and save water consumption when the same washing rate is reached. Optionally, the laundry control method may further include a filter component cleaning step: cleaning the filter assembly. The execution timing of the filter component cleaning step is very flexible.

For example, in an optional implementation, the filtering component cleaning step is performed after the circulating rinsing step, such as: automatically cleaning the filtering component after the circulating rinsing step; the solution is to filter the component after the filtering component is used Timely cleaning to effectively clean the filter components and extend the life of the filter components.

For another example, in another optional implementation, the filtering component cleaning step is performed during execution of the cyclic rinsing step, such as performing the filtering component cleaning step at least once during execution of the circulating rinsing step And turning off and conducting the first water circulation channel before and after each execution of the filter assembly cleaning step. That is to say, during the execution of the circulating rinsing step, if the filtering component needs to be cleaned, the first water circulation channel is cut off, and the water in the inner cylinder is not drained outward or the water discharged in the inner cylinder is no longer introduced into the inner cylinder for cleaning. a filter assembly; when the filter assembly is cleaned, the first water circulation channel is turned on, the water in the inner cylinder is discharged and filtered through the filter assembly, and then introduced into the inner cylinder; whether the filter assembly is cleaned or not, the cycle rinsing step is performed continuously. Laundry cleaning. The solution can start cleaning the filter components according to actual needs, and the implementation is flexible, which is beneficial to ensure the cleaning of the filter components and prolong the service life of the filter components.

Further, the laundry control method may further include: a pressure detecting step: detecting a pressure difference between both ends of the inlet and the outlet of the filter membrane included in the filter assembly. During the execution of the cyclic washing step, determining whether cleaning of the filter assembly is required according to the pressure difference, for example: during the execution of the circulating washing step, if the pressure difference is greater than a set threshold, performing at least one time The filter assembly cleaning step. According to the current cleaning degree of the filter membrane, the solution can automatically determine whether the cleaning of the filter component needs to be started, effectively ensuring the pertinence and timeliness of the cleaning of the filter component, preventing excessive dirt trapped on the ultrafiltration membrane, and ultrafiltration membrane Excessive pressure and damage can help extend the life of the filter assembly.

Alternatively, the laundry control method may further include: a flow detecting step of detecting a flow rate of the outlet of the filter assembly. During the execution of the circulating washing step, it is determined whether to perform the filtering component washing step at least once according to the change of the flow rate. For example, a threshold value may be preset as a basis for judging, and a difference in flow rate at a water outlet end of the filter obtained at an adjacent detection time or an average flow rate or an average flow difference at a water outlet end of the filter obtained in a certain detection period may be performed with the threshold value. In comparison, if the former is smaller than the threshold, it indicates that the filter membrane has a certain degree of blockage, and the filter assembly cleaning step is performed at least once. Otherwise, the filter assembly cleaning step is not performed. The program can be based on The current cleaning degree of the filter automatically determines whether it is necessary to start cleaning the filter assembly, which effectively ensures the targeted and timely cleaning of the filter assembly, prevents excessive dirt trapped on the ultrafiltration membrane, and the ultrafiltration membrane is too much pressure. Damaged, which helps to extend the life of the filter assembly.

Optionally, the filtering component cleaning step comprises: a gas washing step and a water washing step. Air wash step: The control gas is passed through a filter assembly to blow off the dirt trapped on the filter membrane of the filter assembly. Washing step: Rinse the filter with water and drain the rinsed water out of the washing machine.

The execution timing of the air washing step and the water washing step can be set according to actual needs, so the implementation of cleaning the filter assembly is very flexible, and can better meet the diversified needs of practical applications.

In an alternative implementation, the air wash step and the water wash step can be performed in a time-sharing manner. For example: the gas washing step may be performed before the water washing step. The solution sequentially washes and washes the filter components, that is, firstly, the dirt on the surface of the filter membrane is peeled off from the surface of the filter membrane by the vibration of the gas, and then washed with water, so that the solution can be compared with the separate water washing. It saves the flushing water and overcomes the disadvantage that the dirt is not easily washed out on the ultrafiltration membrane when it is washed separately, and the filter membrane can be cleaned more thoroughly.

In another alternative implementation, the air washing step and the water washing step can be performed simultaneously. For example: While controlling the gas to pass through the filter assembly to blow off the dirt trapped on the filter membrane of the filter assembly, flush the filter with water and drain the rinsed water out of the washing machine. The solution simultaneously purifies and washes the filter assembly, which saves the flushing water compared with the separate water washing, and overcomes the disadvantage that the dirt is not easily washed off on the ultrafiltration membrane when the water is washed separately, and the ultrafiltration membrane can be Cleaner and cleaner.

Further optionally, in the cyclic rinsing step, the water discharged from the inner cylinder can be multi-stage filtered. For example: the filter assembly can include a pre-filter and a filter membrane assembly, wherein water in the inner cylinder is discharged during the rinsing process and sequentially filtered through the pre-filter and the filter membrane module, respectively, and introduced into the inner cylinder. For example, the cost of a pre-filter such as a filter structure is generally lower than that of a filter membrane module such as an ultrafiltration membrane module, and the former is easier to clean and replace than the latter. Before the water discharged from the inner cylinder enters the filtration membrane module, First, the pre-filter is used to intercept impurities such as wire dust and macro-molecule particles, so that the water entering the filter membrane module is relatively clean, which is beneficial to prolong the maintenance cycle and service life of the filter membrane module, and the circulation is also improved by two-stage filtration. The cleanliness of the rinse water used, in turn, helps to improve the washing rate of the laundry.

2 is a schematic block diagram of a washing machine according to a second embodiment of the present invention. As shown in FIG. 2, the washing machine provided in this embodiment includes: a water inlet control module 21, a circulation rinsing control module 22, and a spray dehydration control module 23. The water intake control module 21 is for controlling the water inflow to introduce a first predetermined amount of clean water into the inner cylinder of the washing machine after the washing step is completed.

The circulating rinsing control module 22 is configured to turn on the first water circulation passage of the washing machine during the rinsing process to discharge the water in the inner cylinder and filter through the filter assembly, and then introduce the water in the inner cylinder into the inner cylinder. After the rinsing, the water in the inner cylinder is discharged outside the washing machine. .

The spray dewatering control module 23 is configured to perform at least one spray dewatering process, and each spray dewatering process comprises: feeding a second predetermined amount of clean water into the inner cylinder, rotating the inner cylinder, and turning on the second water circulation passage of the washing machine The water pumped out during the rotation of the inner cylinder is sprayed onto the clothes in the inner cylinder. After the water circulation is preset for a predetermined period of time, the inner cylinder is continuously rotated and the water discharged during the rotation of the inner cylinder is discharged to the washing machine.

In this embodiment, the cycle rinsing and the spray dehydration are combined. On the one hand, the rinsing water is purified and recycled after being circulated and rinsed, thereby obviously saving the washing water; on the other hand, the spray dehydration control is introduced in the dehydration control and is sprayed. The recycling of water introduced into the drenching control system improves the utilization rate of the clean water entering the inner cylinder of the washing machine to a certain extent, so that the same amount of clean water can be used to remove more residual washing materials, and the laundry cleanliness can be satisfied. It is possible to reduce the amount of water used. Since the technical solution provided by the present invention does not need to rely on large auxiliary equipment such as an ozone generator, the cost is low.

Based on the above technical solution, the washing machine may further include: a filter component cleaning control module. The filter assembly cleaning control module is used to perform cleaning control of the filter assembly.

Optionally, the filter component cleaning control module starts to run after the circulating rinsing control module is finished running. The solution cleans the filter components in time after the filter components are used, which effectively ensures the cleaning of the filter components and prolongs the service life of the filter components.

Alternatively, optionally, the filter component cleaning control module runs at least once during the operation of the circulating rinse control module, and the cycle rinses each time before the filter component cleaning control module starts running and after the end of the operation. The control module turns off and conducts the first water circulation channel, respectively. The solution can start cleaning the filter components according to actual needs, and the implementation is flexible, which is beneficial to ensure the cleaning of the filter components and prolong the service life of the filter components.

Further, the washing machine may further include: a pressure detecting module. The pressure detecting module is configured to detect a pressure difference between the inlet and the outlet of the filter assembly. During the operation of the circulating washing control module, if the pressure difference between the two ends of the inlet and outlet is greater than a set threshold, the filter assembly cleaning control module operates at least once. The solution can automatically determine whether the cleaning of the filter component needs to be started according to the current cleaning degree of the filter membrane, effectively ensuring the pertinence and timeliness of the cleaning of the filter component, and preventing the ultrafiltration membrane. Excessive dirt is trapped, and the ultrafiltration membrane is damaged due to excessive pressure, which is beneficial to prolong the service life of the filter assembly.

Alternatively, the washing machine may further include: a flow detecting module for detecting a flow rate of the outlet of the filter assembly. During the operation of the circulating rinsing control module, it is determined whether the filter component cleaning control module is operating according to the change of the flow rate. The solution can automatically determine whether the cleaning of the filter component needs to be started according to the current cleaning degree of the filter membrane, effectively ensuring the pertinence and timeliness of the cleaning of the filter component, and preventing excessive dirt trapped on the filter membrane of the filter component, the filter membrane Damage due to excessive pressure, which helps to extend the service life of the filter assembly.

Optionally, the filter component cleaning control module comprises: an air washing control unit and a water washing control unit. An air wash control unit for controlling the passage of gas through the filter assembly to blow off dirt intercepted on the filter of the filter assembly. A water washing control unit for controlling the water flow to rinse the filter and discharging the washed water out of the washing machine.

During the operation of the filter component cleaning control module, the execution timings of the air washing control unit and the water washing control unit may be set according to actual needs, for example, each time the filter component cleaning control module is operated, the time-sharing operation or the simultaneous operation of the air-washing control The unit and the washing control unit, therefore, the implementation of the cleaning of the filter assembly is very flexible, which can better meet the diversified needs of practical applications.

For example: Each time the filter assembly cleaning control module is operated, the air washing control unit is first operated and then the water washing control unit is operated. For another example, the air wash control unit and the water wash control unit are simultaneously operated each time the filter assembly wash control module is operated. Compared with the separate water washing, the above solution can save the flushing water, and overcomes the disadvantage that the dirt is not easily washed out on the filter membrane when the water is washed separately, and the filter membrane can be cleaned more thoroughly.

An embodiment of the present invention further provides a washing machine comprising: an outer cylinder, an inner cylinder disposed in the outer cylinder and communicating therewith, a pre-filter, a filter membrane assembly, and a shower head for spraying into the inner cylinder; The outer cylinder is provided with at least one water inlet and at least one water outlet; from any of the outlets of the outer cylinder sequentially passing between the pre-filter and the filter membrane assembly to any inlet of the outer cylinder The pipeline is formed with a first water circulation passage for discharging the water in the inner cylinder into the inner cylinder after being filtered; and forming a line from any drain port of the outer cylinder to the pipeline between the shower heads A two-water circulation passage for guiding water in the inner cylinder to the shower head and spraying into the inner cylinder.

The pre-filter can perform primary filtration on the discharge water of the inner cylinder to remove impurities such as wire dust and macro-molecules in the water, and the type of equipment can be, but not limited to, a filter structure. The pre-filter filtered water enters the membrane module for re-filtration, and the water filtered by the membrane module is reintroduced. The cylinder recycles the rinsing water during the rinsing process to achieve the technical effects of saving water, improving the washing rate of the clothes, prolonging the maintenance period of the filtration membrane module and the service life. The type of equipment for the filter membrane module can be, but is not limited to, an ultrafiltration membrane module.

In addition, the first water circulation passage, the second water circulation passage, and the drainage passage may be independent of each other, or may be partially combined and controlled by a switching unit such as a solenoid valve or a reversing valve at a branching portion of each passage. The first water circulation channel or the second water circulation channel may be provided with a water pump to direct water from a lower portion to a higher position.

Optionally, the filter membrane module is provided with at least one inlet and at least one outlet; any inlet of the filter assembly is connected with a gas delivery device. Any of the outlets of the filter assembly leading to the tubing outside the washing machine may be formed with a wash drain channel. The gas delivery device can be, but is not limited to, an air pump. The cleaning water discharge passage, the first water circulation passage and the above drainage passage may be independent of each other, or may be partially combined and controlled by a switching unit such as a solenoid valve or a reversing valve at a branching portion of each passage.

Optionally, the filter assembly is further provided with a pressure sensor for detecting the pressure of the inlet and outlet of the filter assembly. For example, the filter assembly is provided with a first pressure sensor and a second pressure sensor, and the first pressure sensor is used for detecting the pressure at the inlet end of the filter membrane. A second pressure sensor for detecting the pressure at the outlet end of the filter. By comparing the pressure difference between the inlet and outlet of the membrane, it is automatically determined whether the filter assembly needs to be cleaned.

Optionally, the filter assembly is further provided with a flow sensor for detecting the flow rate of the effluent of the filter assembly. The flow component changes automatically to determine if the filter assembly needs to be cleaned.

The specific layout position of each component of the washing machine can be designed according to actual needs, and the present invention does not limit this. The washing machine provided by the embodiment of the present invention can be used to implement the laundry control method provided by the embodiment of the present invention. The principle of the laundry control process and the achievable technical effects can be referred to the corresponding records of the above embodiments, and details are not described herein again.

An alternative embodiment of the washing machine of the present invention will now be further described with reference to an alternative construction of the washing machine provided by the embodiment of the present invention. The structure and the flow are only an alternative implementation, and should not be construed as limiting the essence of the technical solution of the present invention.

FIG. 3 is a schematic diagram of an optional structure of a washing machine according to Embodiment 3 of the present invention. As shown in FIG. 3, the washing machine provided by the embodiment of the present invention includes: an inlet valve 1, a detergent delivery box 2, an inner cylinder 3, an outer cylinder 4, a water pump 6, a first reversing valve 7, an air pump 8, and a filter membrane assembly. 9. Second reversing valve 10, sprinkler 11, water supply line 12, filtration line 13, circulation line 14, first drainage line 15, second drainage line 16, cleaning line 17, return line Road 18, first pressure sensor 19, second pressure transmission Sensor 20 and pre-filter 21.

The inner cylinder 3 and the outer cylinder 4 are in communication. The drain port of the outer cylinder 4 - the water pump 6 - the water supply line 12 - the first reversing valve 7 - the filter line 13 - the pre-filter 21 - the filter membrane assembly 9 - the return line 18, etc. form a first water circulation passage, The return line 18 communicates with the inner tube 3 via the water inlet of the detergent dispensing box 2 and the outer tube 4. The drain port of the outer cylinder 4 - the water supply pipe 12 - the first reversing valve 7 - the circulation line 14 - the sprinkler head 11 and the like form a second water circulation passage. The drain port of the outer cylinder 4 - the first reversing valve 7 - the first drain line 15- the second reversing valve 10 - the second drain line 16 and the like form a drain passage. Drainage port of outer cylinder 4 - water pump 6 - water supply pipe 12 - first reversing valve 7 - filter line 13 - pre-filter 7 - filter assembly 9 - cleaning line 17 - second reversing valve 10 - The second drain line 16 and the like form a washing drainage channel. An optional laundry control method for the laundry machine includes:

(1) Washing step: The clean water passes through the inlet valve 1 and enters the detergent placing box 2, and the detergent is flushed into the inner cylinder 3 to wash the laundry in the inner cylinder 3. After the washing is completed, the washing water in the inner cylinder is discharged out of the washing machine through the drain passage. BP: After the washing is finished, the water pump 6 starts to work, the washing water in the inner cylinder enters the water supply line 12, and the first switching valve 7 is switched to the drain pipe. The road 15, the second reversing valve 10 is switched to the drain line 16 to discharge the washing water in the inner cylinder out of the washing machine.

(2) Dehydration step: After the washing water is drained in the washing step, the inner cylinder 3 is rotated, and the washing water remaining in the laundry is scooped out during the rotation, and the drained water is discharged outside the washing machine through the drain passage.

(3) Inlet step: Put a certain amount of water into the inner tube.

(4) Cycle rinsing step + filter assembly cleaning step: conducting the above-mentioned first water circulation channel for circulating rinsing for 5-20 minutes, then cutting off the first water circulation channel, performing a filtering component cleaning step, and continuing during the filtering component cleaning step execution process Rinse the clothes in the inner cylinder; after the cleaning step of the filter assembly is finished, the first water circulation channel is turned on to continue the cyclic rinsing for 10-60 minutes, then the first water circulation channel is cut off, and the secondary filter assembly cleaning step is performed, after the filter assembly is cleaned, The drain passage drains the remaining rinse water in the inner cylinder out of the washing machine.

Wherein, in the circulating rinsing process, the rinsing water discharged from the inner cylinder is filtered through the first water circulation passage and then returned to the inner cylinder for recycling. BP: During the circulating rinsing process, the rinsing water discharged from the inner cylinder passes through the water pump 6 and enters the water supply pipeline 12, The first reversing valve 7 is switched to the filter line 13, and the water enters the filter line 13 via the first reversing valve 7, is filtered through the pre-filter 21, the filter membrane module 9, and then enters the return line 18 and is washed. The water inlets of the agent delivery box 2 and the outer cylinder 4 are returned to the inner cylinder 3, thereby rinsing the laundry by circulating the rinsing water in the inner cylinder.

The method of cleaning the filter membrane module in the cleaning step of the filter component is divided into: a gas washing step and a water washing step. These two steps can be performed in a time-sharing manner or simultaneously. It may be explained by taking the optional embodiment of the time-washing and water-washing as an example: The water pump 6 stops working, the first reversing valve 7 is switched to the direction of the drain line, and the filter line is intercepted, the second reversing valve 10, the cleaning pipeline and the second drain pipeline 16 are connected, and the air pump 8 starts to work. After the set time is reached, the air pump 8 stops working, the first switching valve 7 is switched to the filter pipeline, the water pump 6 is operated, and the inner cylinder 3 is used. The discharged rinsing water discharges the dirt vibrated by the air pump in the filtration membrane module 9 through the washing line 17 and the second drain line 16 to the outside of the washing machine. The duration of each opening of the air pump 8 may be 10-120 s, and the duration of the water pump 6 may be 5-60 s each time.

The filter component cleaning step can be automatically performed when the cycle rinsing setting is long-term full, or can be automatically determined by determining the pressure or flow rate of the filter membrane module. For example, a first pressure sensor 19 and a second pressure sensor 20 may be disposed on the filter assembly, the pressure at the inlet end of the filter is detected by the first pressure sensor 19, and the pressure at the outlet end of the filter is detected by the second pressure sensor 20, if in circulation During the process, when the pressure difference detected by the two pressure sensors is greater than the preset threshold, the filter component cleaning step is started.

Spray dehydration step: Perform at least one spray dehydration treatment, each spray dehydration treatment includes: The inlet valve 1 opens into a small amount of water (less than the amount of water required to wash or rinse the laundry), and the inner cylinder 3 rotates at a high speed (rotation speed is 400-1000 rpm), the first reversing valve 7 is switched to the circulation line 14, the water pump is working, and the water pumped out at the high speed of the inner cylinder passes through the water supply line 12, the circulation line 14, the shower head 11, and is returned to the washing inner cylinder. Inside, the return water passes through the high-speed centrifugation of the inner cylinder to remove the residual washing powder in the clothes to reduce the residual alkalinity of the laundry. After a certain period of time, the inner cylinder maintains or increases the rotational speed (400-1400 rpm) to continue the rotation. A reversing valve 7 is switched to the first drain line 15, and the second diverter valve 10 still maintains the first drain line 15 and the second drain line 16 in communication to discharge the spray water. This spray cycle process can be repeated multiple times to achieve the desired alkalinity requirements. The time of each spray cycle can be controlled at l-5min. After at least one spray cycle, the inner cylinder can continue to rotate at high speed, the pump continues to work, and the remaining water is drained.

The above technical solution obviously saves the washing water and reduces the residual amount of the washing material in the laundry. Since the above technical solution does not need to rely on large auxiliary equipment such as an ozone generator, the cost is low.

In the above embodiments of the present invention, the serial numbers of the embodiments are merely for convenience of description, and do not represent the advantages and disadvantages of the embodiments. The descriptions of the various embodiments are all focused on, and the parts that are not detailed in an embodiment can be referred to the related description of other embodiments.

One of ordinary skill in the art can understand that all or part of the steps of the above method embodiments are implemented. The foregoing program may be stored in a computer readable storage medium, and the program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a read only memory (Read-Only Memory, ROM for short), random access memory (RAM), disk or optical disk, etc., which can store program code.

In the embodiments of the apparatus and method of the present invention, it is apparent that the various components or steps may be decomposed, combined, and/or decomposed and recombined. These decompositions and/or recombinations should be considered as equivalents to the invention. Also, in the above description of the specific embodiments of the present invention, features described and/or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, and in other embodiments. The features are combined or substituted for features in other embodiments.

It should be emphasized that the term "comprising" or "comprises" or "comprising" or "comprising" or "comprising" or "comprising" or "comprising" or "comprises"

It should be noted that, although the invention and its advantages are described in detail, it is understood that various changes and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. And transformation. Further, the scope of the invention is not limited to the specific embodiments of the processes, apparatus, means, methods and steps described in the specification. It will be readily apparent to those skilled in the art from this disclosure that the present invention can be used in accordance with the present invention to perform substantially the same functions as the corresponding embodiments described herein or to obtain substantially the same results as the present and future The process, equipment, means, method or step being developed. Therefore, the appended claims are intended to cover such a process, apparatus, means, methods or steps.

Claims

Rights request

A laundry control method comprising:

Spray dehydration step: Perform at least one spray dehydration treatment, each spray dehydration treatment includes: inserting a second predetermined amount of clean water into the inner cylinder, rotating the inner cylinder, and turning on the second water circulation passage of the washing machine to open the inner cylinder The water poured out during the rotation is sprayed onto the clothes in the inner cylinder. After the water circulation is preset for a predetermined period of time, the inner cylinder is continuously rotated and the water discharged during the rotation of the inner cylinder is discharged outside the washing machine.

2. The laundry control method according to claim 1, further comprising:

Filter assembly cleaning steps: Clean the filter assembly.

3. The laundry control method according to claim 2, wherein

The filter assembly cleaning step is performed at least once after the end of the cycle rinsing step.

4. The laundry control method according to claim 2, wherein

The filter assembly cleaning step is performed at least once during execution of the cycle rinsing step, and the first water circulation passage is turned off and on, respectively, before and after each execution of the filter assembly cleaning step.

5. The laundry control method according to claim 4, further comprising:

Pressure detecting step: detecting a pressure difference between the inlet and the outlet of the filter assembly;

During the execution of the cycle rinsing step, the filter assembly cleaning step is performed at least once if the pressure difference is greater than a set threshold.

6. The laundry control method according to claim 4, further comprising:

a flow detecting step: detecting a flow rate of an outlet of the filter component;

During the execution of the cyclic rinsing step, it is determined whether to perform the filtering component cleaning step at least once according to the change of the flow rate.

7. The laundry control method according to any one of claims 2-6, wherein the filtering component cleaning step comprises:

Air washing step: passing the gas through the filter assembly to blow off the dirt intercepted on the filter membrane included in the filter assembly;

Washing step: Rinse the filter with water and drain the rinsed water out of the washing machine.

8. The laundry control method according to claim 7, wherein

The air washing step and the water washing step are performed in a time-sharing or simultaneously.

9. The laundry control method according to claim 1, wherein

The filter assembly includes a pre-filter and a filter membrane assembly, and the water in the inner cylinder is discharged during the rinsing process and sequentially filtered through the pre-filter and the filter membrane module, respectively, and introduced into the inner cylinder.

10. The laundry control method according to claim 1, wherein

Each time the spray dewatering process, the inner cylinder rotates at a first rotational speed before the end of the water cycle, and the inner cylinder rotates at a second rotational speed after the end of the water cycle, the second rotational speed being equal to or greater than the first rotational speed.

The laundry control method according to claim 1, wherein the first predetermined amount is greater than the second predetermined amount.

12. A washing machine comprising:

13. The washing machine of claim 12, further comprising:

Filter component cleaning control module for cleaning control of the filter component.

14. The washing machine according to claim 13, wherein

The filter assembly cleaning control module starts to operate after the circulating rinse control module is finished running.

15. The washing machine according to claim 13, wherein

The filter component cleaning control module runs at least once during operation of the circulating rinse control module, and the cycle rinse control module respectively cuts off and guides each time before the filter component cleaning control module starts running and after the end of the operation. Passing through the first water circulation channel.

16. The washing machine of claim 15, further comprising:

a pressure detecting module, configured to detect a pressure difference between the inlet and the outlet of the filter membrane included in the filter assembly;

During operation of the cyclic rinsing control module, if the pressure difference is greater than a set threshold, the filter assembly wash control module operates at least once.

17. The washing machine of claim 15, further comprising:

a flow detection module, configured to detect a flow rate of an outlet of the filter component;

During operation of the cyclic rinsing control module, it is determined whether the filter component cleaning control module is operating according to the change of the flow rate.

18. The washing machine of any of claims 13-17, the filter assembly cleaning control module comprising:

a gas washing control unit, configured to control the gas to pass through the filter assembly to blow off the dirt intercepted on the filter membrane included in the filter assembly;

A water washing control unit for controlling the water flow to rinse the filter and discharging the washed water out of the washing machine.

19. The washing machine according to claim 18, wherein

Running the gas at a time-sharing or simultaneously while each time the filter assembly cleaning control module is run Wash control unit and the washing control unit

20. A washing machine comprising:

21. The washing machine according to claim 20, wherein

The filter membrane assembly is provided with at least one inlet and at least one outlet;

Any inlet of the filter membrane module is connected to a gas delivery device.

22. The washing machine according to claim 21, wherein

A pressure sensor for detecting the pressure of the inlet and outlet of the filtration membrane module is further disposed on the filtration membrane module.

23. The washing machine according to claim 22, wherein

A flow sensor for detecting a flow rate of an outlet of the filtration membrane module is disposed on the filtration membrane module.