WO2014146403A1

WO2014146403A1 - Laundry control method and washing machine

Info

Publication number: WO2014146403A1
Application number: PCT/CN2013/082602
Authority: WO
Inventors: 柳玉全; 郝世龙; 李光辉; 王春旭; 劳春峰
Original assignee: 海尔集团技术研发中心; 海尔集团公司
Priority date: 2013-03-18
Filing date: 2013-08-29
Publication date: 2014-09-25
Also published as: CN104060435B; CN104060435A

Abstract

A laundry control method and a washing machine. The method comprises: water-filling; cycled wash: during a washing process, a first water circulation channel of the washing machine is conducted to have water inside an inner tub (3) discharged, filtered, and introduced into the inner tub (3), and, when the washing is completed, the water inside the inner tub (3) is discharged to the external of the washing machine; spray-and-drying: a spray-and-drying process is executed at least once, where each spray-and-drying process comprises: a certain amount of clean water is filled into the inner tub (3), the inner tub (3) is rotated, a second water circulation channel of the washing machine is conducted to have water that is spun out when the inner tub (3) is rotating sprayed onto clothes inside the inner tub (3), and, when the water is circulated as such for a second duration, the inner tub (3) is made to continue to rotate while the water that is spun out when the inner tub is rotating is discharged to the external of the washing machine. The present invention conserves laundry water, reduces residual amount of a laundry substance in the clothes, and is of reduced costs.

Description

Laundry control method and washing machine

The present invention claims priority to a Chinese patent application filed on March 18, 2013, filed on the National Intellectual Property of China, with the application number 201310085154.0, entitled "Laundry Control Method and Washing Machine".

Technical field

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 each process, no matter 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 subjected to purification treatment and 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 laundry water is purified and treated by using a large auxiliary device such as an ozone generator.

In the above prior art, there is a need to add a water storage tank, the filtered water cannot be recycled in the laundry, and the washing water is simply processed by the filter net, and the washing liquid is generally used in the laundry, and the residual amount of the washing material is large; There are technical two relying on large auxiliary equipment such as ozone generators, which are high.

Summary of the invention

An overview of the cartridges of the present invention is given 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 invention provides a laundry control method and device and a washing machine for saving laundry water. Reducing the amount of residual detergent in the laundry at a lower cost.

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

Inlet step: a certain amount of water into the inner cylinder of the washing IL;

Circulating washing step: the first water circulation passage of the washing machine is turned on during the washing process to filter the outlet in the inner cylinder and filter through the filter assembly, and then introduce the inner cylinder into the inner cylinder. After the washing is finished, the 7j# in the inner cylinder is out of the washing machine.

Spray dehydration step: Perform at least one spray dehydration treatment, each spray dehydration treatment includes: feeding a certain amount of clean water into the inner cylinder, rotating the inner cylinder, and turning on the second ring passage of the washing machine to rotate the inner cylinder The water that has been pumped is sprayed onto the clothes in the inner cylinder, and after the water is circulated for a second time, the inner cylinder is continuously rotated and the 7j# is washed out during the rotation of the inner cylinder.

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

a binary module for controlling the water inlet to feed a certain amount of clean water into the inner cylinder of the washing machine; and a circulation washing control module for guiding the first water circulation passage of the washing machine during the washing process to discharge the inner cylinder After filtering, the filter component is introduced into the inner cylinder, and after washing, the 7^# in the inner cylinder is taken out of the washing machine;

The spray dehydration control module is used for controlling at least one spray dehydration, and each spray dehydration control comprises: feeding a certain amount of clean water into the inner cylinder, rotating the inner cylinder, and turning on the second 7j ring passage of the washing machine to connect the inner cylinder The water pumped out during the rotation is sprayed onto the clothes in the inner cylinder. After the second time of the ring, the inner cylinder continues to rotate and the 7j # which is thrown out during the rotation of the inner cylinder is out of the washing machine.

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

An outer tub, an inner cylinder disposed in the outer tub and communicating therewith, a filter assembly, and a shower head for spraying into the inner cylinder; the outer tub is provided with at least one water inlet and at least one drain;

Forming a first 7-ring passage from a conduit of any one of the outlets of the outer tub through the filter assembly to any of the water inlets of the outer tub for use in the inner cylinder The filter component is filtered and introduced into the inner cylinder;

A conduit from the drain of any of the outer tubs to the showerhead is formed with a second water circulation passage for directing water from the inner cylinder to the showerhead and spraying into the inner cylinder.

The technical solution provided by the invention combines the circulating washing and the spray dehydration, and on the other hand, the washing water is purified and recycled after being treated by the circulating washing control, thereby obviously saving the washing water; The use of the ring increases 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 detergent substances, and the cleanliness of the clothes can be satisfied while reducing the water consumption 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.

These and other advantages of the present invention will become more apparent from the detailed description of the preferred embodiments of the invention.

DRAWINGS

The invention may be better understood by referring to the following description in conjunction with the drawings, wherein the same or similar reference numerals are used throughout the drawings. The drawings, which are included in the specification, and in the claims In the drawing:

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.

Reference mark:

Inlet valve -1; detergent delivery box 2; inner tube one 3;

Outer bucket one 4; turbidity sensor one 5; water pump one 6;

The first reversing valve is 7; the air pump is 8;

The second reversing valve is 10; the sprinkler head 11;

Filter tube one 13; circulation line one ₁₄ ; first drain line one 15; second drain line - 16; cleaning line one 17; return line one 18;

The first pressure sensor -19; the second pressure sensor one.

The elements in the figures are illustrated for simplicity and clarity and are not necessarily to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements in order to facilitate an understanding of the embodiments of the invention.

detailed description Exemplary embodiments of the present invention will be described in detail below with reference to the drawings. For the sake of clarity and conciseness, not all features of an actual implementation are described in the specification. However, it should be understood that many implementation-specific decisions must be made in the development of any such practical embodiment in order to achieve the developer's specific objectives, for example, compliance with system and business related constraints, and these Restrictions may vary from implementation to implementation. In addition, it should also be appreciated that while development work can be very complex and time consuming, such development work is merely a routine task for those skilled in the art having the benefit of the disclosure.

It should also be noted that, in order to avoid obscuring the present invention by unnecessary detail, only the device structure and/or processing steps closely related to the solution according to the present invention are described in the drawings and the description. The representations and descriptions of components and processes known to those of ordinary skill in the art that are not relevant to the present invention are omitted.

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. Inlet step: Put a certain amount of water into the inner tube of the washing machine.

For example, water such as tap water may first enter the washing substance placing box of the washing machine, and the washing substance in the washing box may be flushed into the inner tube to be washed. The amount of the clean water can be set in advance, or can be automatically determined according to the quantity of the clothes in the inner cylinder; the washing material can also be dispensed by other means such as labor, etc., and the present invention is not limited thereto.

Step 13. Circulating washing step: The first water circulation passage of the washing machine is turned on during the washing process to filter the outlet in the inner cylinder and filter through the filter assembly, and then introduce the inside of the inner cylinder into the inner cylinder.

After the water intake is completed, the laundry in the inner cylinder is washed. Washing can be divided into ordinary washing (as in step 12) and cycle washing (as in step 13). The washing water is not recycled during the ordinary washing process, and the washing water is recycled during the circulating washing process.

First, ordinary washing can be performed by means of stirring or beating. The normal washing is continued for a certain period of time (may be referred to as the first length of time) to start the cycle washing.

An outer tub communicating with the inner cylinder may be disposed outside the inner cylinder of the washing, and any drain port of the outer tub passes through the filter assembly to the pipeline between any water inlet of the outer tub to form a first water circulation passage. During the cycle washing process, the first 7j ring channel is turned on, and the 7j# in the inner cylinder is filtered out and introduced into the inner cylinder through the filter assembly, so that the 7j ring reaches the preset washing time or the water discharged in the inner cylinder. After the turbidity reaches the set value, the washing is finished, and the inside of the inner cylinder is taken out of the washing machine. Step 15, the spray dehydration step: performing at least one spray dehydration treatment, each spray dehydration treatment comprises: feeding a certain 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 connect the inner cylinder The water poured out during the rotation is sprayed onto the clothes in the inner cylinder. After the second length of the 7j ring, the inner cylinder is continuously rotated and the outer cylinder is thrown out of the washing machine during the rotation of the inner cylinder.

The spray dewatering process can be performed once; or, in order to achieve the desired alkalinity requirement, the spray dewatering process can be performed multiple times, and the next spray dewatering process is performed after the end of the spray dewatering process.

The laundry control method provided by the embodiment combines the circulating washing and the spray dewatering, and on the other hand, the washing water is purified and recycled after being treated by the circulating washing control, thereby obviously saving the washing water; on the other hand, the spraying is introduced in the discharging. 7j system off and recycled off the incoming water in the shower system ₇ J, and therefore improved to a certain extent into the cartridge into the washing machine utilization of water, so that the same amount of water employed may be washed to remove more substances remaining , to meet the cleanliness of the clothes while reducing the amount of water 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.

Based on the above technical solution, step 12 may be further included before the step 13.

Step 12: Normal washing step: Wash the laundry in the drum for the first time. After the water intake is completed, the laundry in the inner cylinder is washed. Washing can be divided into ordinary washing (as in step 12) and cycle washing (as in step 13). The washing water is not recycled during the ordinary washing process, and the washing water is recycled during the circulating washing process. First, ordinary washing can be performed by means such as stirring or beating. The normal washing is continued for a certain period of time (may be referred to as the first length) to start the cycle washing. An outer tub connected to the inner cylinder may be disposed outside the inner cylinder of the washing machine, and any drain port of the outer tub passes through the filter assembly to the pipeline between any water inlet of the outer tub, forming a first

7^ ring channel. During the cycle washing process, the first 7j ring channel is turned on, and the 7j# in the inner cylinder is filtered out and introduced into the inner cylinder through the filter assembly, so that the 7j ring reaches the preset washing time or the water discharged in the inner cylinder. After the turbidity reaches the set value, the washing is finished, and the inside of the inner tube is washed.

The scheme divides the washing process into ordinary washing and circulating washing: ordinary washing can ensure sufficient wetting of the laundry, full dissolution and diffusion of the washing material, and ensuring that the washing water washes the laundry with high solubility of the washing substance to effectively decontaminate, etc. The circulating washing can filter the washing water through the filtering component to filter out impurities such as thread chips and macromolecular particles in the washing water, and the washing water after the filtering treatment is returned to the inner cylinder for washing and recycling for use. Saved laundry Use water.

Optionally, the step 14 may be further included before the step 15 .

Step 14. Ordinary dehydration step: Rotate the inner cylinder to discharge the water extracted during the rotation of the inner cylinder out of the washing machine. The use of the ring, spray dewatering involves recycling of the water removed from the clothes. The laundry can be dehydrated by the normal dewatering step before the spray dewatering step.

Based on the above technical solution, the laundry control method may further include: a filter assembly cleaning step: cleaning the filter assembly. The execution timing of the filter component cleaning step is very flexible.

For example, in an optional implementation manner, the filtering component cleaning step is performed after the circulating washing step, such as: automatically cleaning the filtering component after the circulating washing 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 manner, the filtering component cleaning step is instructed during execution of the circulating washing step, such as: performing the filtering component cleaning step at least once during execution of the circulating washing 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 washing step, if the filtering component needs to be cleaned, the first water circulation channel and the inner part are cut off; when the filtering component is cleaned, the first 7^ ring channel is turned on, and the inner tube is 7j. #出出过滤过滤过滤的过滤内的内内内内; In addition to cleaning the filter assembly, the washing process can be carried out continuously during the execution of the cycle washing step. 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 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. 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, 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 a water outlet end of the filter membrane included in the filter assembly. During the execution of the cyclic washing step, it is determined whether to perform the filter assembly washing step at least once according to the change in 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 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 targeted and timely 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.

Optionally, the filtering component cleaning step comprises: a gas washing step and a water washing step. Air-washing 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.

For example: the gas washing step may be performed before the water washing step is performed. 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 water alone. 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 ultrafiltration membrane can be cleaned more thoroughly.

For another example, the gas 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, rinse the filter with water and drain the rinsed water out of the washing machine. The solution simultaneously purifies and washes the filter assembly, and saves the flushing water compared with the water alone, 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 removed. Cleaner and cleaner.

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 by the embodiment includes: a water inlet control module 21, a circulation washing control module 23, and a spray dehydration control module 25.

The binary module 21 is used to control the water inflow to feed a certain amount of clean water into the inner cylinder of the washing machine. The circulating washing control module 23 is configured to turn on the first water circulation passage of the washing machine during the washing process to filter the outlet in the inner cylinder and filter through the filter assembly, and then introduce the inner cylinder into the inner cylinder. The inside of the tube is out of the washing machine.

The spray dehydration control module 25 is configured to control at least one spray dehydration, and each spray dehydration control comprises: feeding a certain amount of clean water into the inner cylinder, rotating the inner cylinder, and conducting the second 7 ring passage of the washing IL to The water pumped out during the rotation of the inner cylinder is sprayed onto the clothes in the inner cylinder. After the second length of the 7j ring, the inner cylinder continues to rotate and the 7j # which is thrown out during the rotation of the inner cylinder is out of the washing machine.

In this embodiment, the combination of the cycle washing and the spray dehydration is combined, and on the other hand, the washing water is purified and recycled after being treated by the circulating washing control, thereby obviously saving the washing water; on the other hand, the spraying dewatering is introduced in the dehydration control and is sprayed. The recycling of water introduced into the 7j^ system has improved the utilization rate of clean water into 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 detergent substances and meet the cleanliness of the clothes. 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 a large auxiliary device such as an ozone generator, it is low.

Optionally, the washing machine may further comprise: a common washing control module. The normal wash control module is used to control the normal wash to wash the laundry in the inner cylinder for a first period of time. The scheme divides the washing process into ordinary washing and circulating washing: ordinary washing can ensure sufficient wetting of the laundry, full dissolution and diffusion of the washing material, and ensuring that the washing water washes the laundry with high solubility of the washing substance to effectively decontaminate, etc. The circulating washing can filter the washing water through the filtering component to filter out impurities such as thread chips and macromolecular particles in the washing water, and the washing water after the filtering treatment is returned to the inner cylinder for washing and recycling for use. Saves on washing water.

Optionally, the washing machine may further comprise: a common dehydration control module. The ordinary dehydration control module is used to control the normal dehydration so that the inner cylinder rotates and the outer cylinder is rotated out of the washing machine. This solution can dewater the clothes before spray dehydration.

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 washing 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 washing control module, and the circulating washing is performed before each time the filtering component cleaning control module starts running and after the end of the running. 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 mode 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 membrane included in the filter assembly. During operation of the cyclic wash control module, if the pressure difference is greater than a set threshold, the filter assembly wash control module operates at least once. 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 washing machine may further include: a flow detecting step of detecting a flow rate of the water outlet end of the filter membrane included in the filter assembly. During the execution of the cycle washing step, it is determined whether to perform the filter assembly cleaning step at least once according to the change in 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, preventing excessive dirt trapped on the ultrafiltration membrane, and ultrafiltration membrane Excessive pressure and damage can help extend the 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 washing control unit for controlling gas passing through the filter assembly to blow off dirt intercepted on the filter membrane 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.

Each time the filter component cleaning control module is run, the execution timing of the air washing control unit and the water washing control unit can be set according to actual needs, so the implementation of cleaning the filter component is very flexible, and can better meet the diversification of practical applications. demand.

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

An embodiment of the present invention further provides a washing machine comprising: an outer tub, an inner cylinder disposed in the outer tub and communicating therewith, a filter assembly, and a shower head for spraying into the inner cylinder. The outer tub is provided with at least one water inlet and at least one water outlet. Forming a first water circulation passage from a conduit of any one of the outlets of the outer tub through the filter assembly to any of the water inlets of the outer tub for filtering out the inner cylinder and filtering through the filter assembly It is then introduced into the inner cylinder. A conduit from the drain of any of the outer tubs to the showerhead is formed with a second loop for directing water from the inner cylinder to the showerhead and spraying into the inner cylinder. The first 7^ring channel, the second 7^ring channel, and the drainage channel may be independent of each other, or may be partially combined and combined by a switching unit such as a solenoid valve or a reversing valve in each channel. Gating control is performed on the fork. 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 assembly 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, and any outlet of the filter assembly is connected to a pipeline of the washing machine Clean the drain channel. The gas delivery device can be, but is not limited to, an air pump. The cleaning drainage channel, the first water circulation channel and the above-mentioned drainage channel 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 channel.

Optionally, the filter assembly is further provided with a pressure sensor for detecting an inlet end or an outlet end of the filter membrane included in 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 membrane. 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 water outlet end of the filter membrane included in the filter assembly. By changing the flow rate, it is automatically determined whether the filter component 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 technical effects that can be achieved can be referred to the corresponding description of the above embodiments.

An alternative embodiment of the washing machine provided by the embodiment of the present invention will be further described below in conjunction with the structure to further illustrate an alternative embodiment of the laundry control method 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 tub 4, a turbidity sensor 5, a water pump 6, a first reversing valve 7, and a gas pump. 8. Filter 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. A return line 18, a first pressure sensor 19 and a second pressure sensor 20.

The inner cylinder 3 and the outer tub 4 are in communication. The drain port of the outer tub 4 - the water pump 6 - the water supply line 12 - the first reversing valve 7 - the filter line 13 - the filter assembly 9 - the return line 18 and the like form a first water circulation passage, wherein the return line 18 The water inlets of the detergent dispensing box 2 and the outer tub 4 are in communication with the inner cylinder 3. Drain outlet water supply line 12 of outer tub 4 first reversing valve 7 circulation line 14 sprinkler 11 Into the second water circulation channel. The drain port of the outer tub 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 the outer tub 4 - water pump 6 - water supply pipe 12 - first reversing valve 7 filter line 13 - filter assembly 9 - washing line 17 second reversing valve 10 aisle. An optional laundry control method for the washing machine includes:

Inlet step: The clean water passes through the inlet valve 1 and enters the detergent delivery box 2, and the detergent is flushed into the washing inner cylinder 3 to participate in the washing.

Ordinary washing step: Wash the laundry in the inner cylinder.

Circulating washing step: After the normal washing time reaches the set washing time, the water pump 6 starts to work, the first switching valve 7 is switched to the direction of the filtering line 13, and the second switching valve 10 intercepts the washing line 17, the washing water Through the action of the water pump 6, through the filtration of the filter assembly 9, the wire scraps and macromolecular particles in the wash water are removed, and then returned to the washing inner cylinder through the return line 18 to continue to participate in the washing. When the cycle time reaches the set time or the turbidity sensor 5 detects that the turbidity has reached the set value, the washing ends.

Filter assembly cleaning steps: The cleaning timing can be selected after the end of the cycle, such as after the wash water cycle, or during the cycle wash. 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 during the cycle When the pressure difference detected by the two pressure sensors is greater than the preset threshold, the cleaning process begins. The method of washing is divided into: first air washing and then water washing or air washing and water washing simultaneously. The flow is as follows (take the first air 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, the filter line is intercepted, and the second reversing valve 10 will clean the line and the first The two drain lines 16 are connected, the air pump 8 starts to work, and after the set time is reached, the air pump 8 stops working, the first reversing valve 7 is switched to the filter line, the water pump 6 is operated, and the filter unit 9 is vibrated by the air pump by using the washing water. The dirt that has passed down is discharged to the outside of the washing machine through the cleaning line 17 and the second drain line 16.

Ordinary dehydration step: After the flushing reaches the set time, the first reversing valve 7 is switched to the first drain line 15, and the second diverter valve 10 connects the first drain line 15 and the second drain line 16 to perform the laundry. Dehydration.

Spray dewatering step: the inlet valve 1 opens to enter a small amount of water, the inner cylinder 3 rotates at a high speed, the first reversing valve 7 is switched to the circulation line 14, the water pump works, and the water that is pumped out at a high speed in the inner cylinder passes through the water supply pipeline 12, The circulation line 14 and the shower head 11 are returned to the washing inner cylinder, and 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 alkali of the laundry. After a certain period of time, the first reversing valve 7 is switched to the first drain line 15, and the second diverter valve 10 still keeps the first drain line 15 and the second drain line 16 connected to discharge the spray wastewater. . This process can be repeated multiple times to achieve the desired alkalinity requirement. After at least one spray cycle, the inner cylinder can continue to rotate at high speed, the pump continues to work, and the remaining 7j is removed.

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.

Having described the invention and its advantages, it is understood that various changes, substitutions and alterations may be made without departing from the spirit and scope of the invention as defined by the appended claims.

Finally, it should also be noted that in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities. There is any such actual relationship or order between operations. Furthermore, the terms "comprising," "comprising," or "includes" or "includes" are intended to include a non-exclusive inclusion, such that a process, method, article, or device that includes a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. In the absence of further limitations, the elements defined by the phrase "comprising a ..." do not exclude the presence of additional elements in the process, method, item, or device that comprises the element.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. Various modifications and changes may be made to the above-described embodiments without departing from the spirit and scope of the invention. Therefore, the scope of the invention is to be limited only by the appended claims and their equivalents.

Claims

Claim

A laundry control method, characterized in that it comprises:

Inlet step: a certain amount of water into the inner cylinder of the washing »L;

Circulating washing step: the first water circulation passage of the washing machine is turned on during the washing process to filter the outlet in the inner cylinder and filter through the filter assembly, and then introduce the inside of the inner cylinder into the inner cylinder;

Spray dehydration step: Perform at least one spray dehydration treatment, each spray dehydration treatment includes: feeding a certain amount of clean water into the inner cylinder, rotating the inner cylinder, and turning on the second 7j ring passage of the washing machine to rotate the inner cylinder The water from the middle is sprayed onto the clothes in the inner cylinder. After the water circulation is preset for a long period of time, the inner cylinder is continuously rotated and the 7j #出洗»L which is pulled out during the rotation of the inner cylinder.

2. The laundry control method according to claim 1, further comprising: a filter assembly cleaning step: cleaning the filter assembly.

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

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

The laundry control method according to claim 4, further comprising: a pressure detecting step of: detecting a pressure difference between the inlet and the outlet of the filter membrane included in the filter assembly;

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

The laundry control method according to claim 4, further comprising: a flow detecting step of detecting a flow rate of the water outlet end of the filter membrane included in the filter assembly; during the execution of the circulating washing step, Determining whether to perform the filtering component cleaning step at least once according to the change of the flow rate.

The laundry control method according to any one of claims 2 to 6, wherein The filter component cleaning steps include:

Air washing step: passing the gas through the filter assembly to blow off the dirt intercepted on the filter membrane; water washing step: rinsing the filter membrane with water, and discharging the rinsed water out of the washing machine.

The laundry control method according to claim 7, wherein the air washing step is performed before the water washing step is performed, or the air washing step and the water washing step are simultaneously performed.

The laundry control method according to claim 1, wherein in the circulating washing step, when the circulating washing time reaches a preset first time period or the turbidity of the water discharged in the inner cylinder reaches a set value, it is determined. The washing is over.

10. A washing machine, comprising:

a binary module for controlling the water inlet to feed a certain amount of clean water into the inner cylinder of the washing machine; and a circulation washing control module for guiding the first water circulation passage of the washing machine during the washing process to discharge the inner cylinder After filtering, the filter component is introduced into the inner cylinder, and after the washing is finished, the inner cylinder is inside;

The spray dehydration control module is used for controlling at least one spray dehydration, and each spray dehydration control comprises: feeding a certain amount of clean water into the inner cylinder, rotating the inner cylinder, and turning on the second 7j ring passage of the washing machine to connect the inner cylinder The water pumped out during the rotation is sprayed onto the clothes in the inner cylinder. After the preset length of the 7j ring, the inner cylinder continues to rotate and the outer cylinder is pulled out of the washing machine.

11. The washing machine of claim 10, further comprising: a filter assembly cleaning control module for performing cleaning control on the filter assembly.

12. The washing machine according to claim 10, wherein

The filter assembly cleaning control module begins to operate after the circulating wash control module has finished running.

13. The washing machine according to claim 10, wherein

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

The washing machine according to claim 13, 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 circulating wash control module, if the pressure difference is greater than a set threshold, the filter assembly wash control module operates at least once.

The washing machine according to claim 13, further comprising: a flow rate detecting module, configured to detect a change amount of a flow rate of the water outlet end of the filter membrane included in the filter assembly;

During the operation of the circulating washing control module, determining whether the filtering component cleaning control module is operating according to the change of the flow rate.

The washing machine according to any one of claims 11-15, wherein the filter assembly cleaning control module comprises:

a gas washing control unit for controlling gas passing through the filter assembly to blow off the dirt intercepted on the filter membrane;

A water wash control unit that controls the water flow to rinse the filter and drains the rinsed water out of the washing machine.

The washing machine according to claim 16, wherein each time the filter assembly cleaning control module is operated, the air washing control unit is first operated to operate the water washing control unit, or simultaneously An air wash control unit and the water wash control unit.

The washing machine according to claim 10, further comprising: the circulating washing control module, specifically for turning on the first water circulation passage of the washing machine during the washing process, and discharging the 7j # of the inner cylinder After being filtered by the filter unit, it is introduced into the inner cylinder, so that 7j will be washed out of the inner cylinder.

19. A washing machine, comprising:

The washing machine according to claim 19, further comprising: A turbidity sensor that detects the turbidity of water discharged from the inner cylinder.

A washing machine according to claim 19 or 20, characterized in that

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

Any inlet of the filter assembly is connected to a gas delivery device, and any outlet of the filter assembly is connected to a line outside the IL to form a cleaning drainage channel.

The washing machine according to claim 21, wherein the filter assembly is further provided with a pressure sensor for detecting the pressure of the inlet end or the outlet end of the filter membrane included in the filter assembly.

The washing machine according to claim 22, wherein the pressure sensor comprises:

a first pressure sensor for detecting a pressure at an inlet end of the filter membrane;

A second pressure sensor for detecting the pressure at the outlet end of the filter membrane.

The washing machine according to claim 21, wherein the filter unit is further provided with a flow sensor for detecting a flow rate of a water outlet end of the filter membrane included in the filter unit.