WO2019218870A1

WO2019218870A1 - Washing machine having dust sensor and control method

Info

Publication number: WO2019218870A1
Application number: PCT/CN2019/084985
Authority: WO
Inventors: 陈瑜; 高秋英; 杨旭光; 许梁
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2018-05-18
Filing date: 2019-04-29
Publication date: 2019-11-21
Also published as: CN110499621A

Abstract

A washing machine that has a dust sensor (4), and a control method. The dust sensor (4) is mounted on the washing machine, and the dust sensor (4) is used for detecting the dust content in a drum of the washing machine. The control method for the washing machine, comprising the following steps: placing clothes into the washing machine; the dust sensor (4) obtaining the dust content in the drum; displaying a dust status and/or adjusting a washing program according to the obtained dust content. By using the foregoing washing machine and control method, the actual usage conditions and the dirtiness of clothes may be determined according to the amount of dust content of the clothes, and then washing parameters of a washing program are adjusted accordingly so as to improve the washing cleanliness of the clothes and the usage experience of a user, thus improving the intelligence degree of the washing machine.

Description

Washing machine with dust sensor and control method thereof

Technical field

The present invention relates to the field of washing devices, and more particularly to a washing machine with a dust sensor and a control method.

Background technique

The existing top-opening automatic washing machine generally has a fuzzy weighing before entering the water, and washes according to the different dry washing water level according to the dry load in the washing machine. However, for clothes of the same dry load, the amount of washing water, the washing time, the amount of detergent, and the number of rinsing required for clothes having different degrees of dirty are different, and the amount of water used in washing is washed only according to the amount of dry load in the washing machine. The length of time, the amount of detergent used, and the number of rinses are not set to meet the needs of clothing of different soiliness. If the parameters of the washing are adjusted only according to the amount of the load, there is a problem that the program is not properly selected, resulting in unclean washing or excessive washing, resulting in waste of resources.

In order to solve the above-mentioned problem of adjusting the washing parameters based only on the dry load of the washing machine determined in the fuzzy weighing process, the clothes of different dirtyness are not properly washed. The invention is specially proposed to add the detection of the dirtiness of the laundry to be washed in the washing machine based on the fuzzy weighing, and adjust the washing parameters according to the different dirtiness of the laundry, thereby enabling the laundry to obtain sufficient but not excessive Washing.

The present invention has been made in view of the above.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a washing machine with a dust sensor and a control method thereof, so as to achieve intelligent determination of the degree of soiling of the laundry to be washed, thereby achieving the purpose of improving the washing efficiency of the washing machine.

In order to solve the above technical problems, the basic idea of adopting the technical solution of the present invention is:

A washing machine with a dust sensor installed with a dust sensor for obtaining a dust content in a washing machine tub.

Further, the dust sensor is disposed on the inner tub and/or the outer tub and/or the balance ring of the washing machine, and the dust sensor detects the dust content between the inner and outer tubs and/or the inner tub.

Further, a dust sensor is respectively disposed at at least two positions of different heights of the inner tub and/or the outer tub, and the dust sensors at different positions respectively detect the dust content of the height;

Preferably, dust sensors are respectively disposed on the upper, middle and lower positions of the outer wall of the outer tub, and the dust contents of the upper, middle and lower heights in the barrel are respectively detected.

Further, at least one dust sensor is disposed on the balance ring of the washing machine, and the dust sensor detects the dust content of at least one height position in the washing machine tub.

Further, the washing machine is provided with a weighing unit to weigh the laundry in the inner tub of the washing machine; the washing machine is further provided with a main control unit to select or recommend a washing program according to the weight of the laundry, and adjust the washing program according to the detected dust content.

Preferably, when the weighing unit comprises the weighing detection of the washing machine, the Hall sensor detects the current value of the motor to obtain a corresponding load weighing value in the barrel according to the current detection value.

A further object of the present invention is to provide a control method for a washing machine with a dust sensor, comprising the steps of: placing laundry to a washing machine;

The dust sensor acquires the dust content in the barrel;

The dust status is indicated based on the obtained dust content and/or the washing procedure is adjusted.

Further, before the laundry machine is put into the water, the dust sensor acquires the dust content in the bucket after the laundry is turned over for a set time, and displays the dust state according to the obtained dust content and/or adjusts the washing program.

Further, in the process of controlling the inversion of the laundry, the laundry in the inner tub of the washing machine is weighed, and the washing program is selected or recommended according to the weighing result;

Preferably, the user determines whether the washing program is selected or automatically selects the washing program.

Further, after the laundry is finished, the dry laundry is set in the set time, the weighing procedure is synchronously executed, the motor is operated at the set power, the pulsator agitates the dry laundry in the inner tub, and the rotation speed of the motor rotor is detected, and the judgment is made. Obtaining the amount of dry laundry corresponding to the detected value of the rotational speed of the motor rotor and outputting;

Preferably, the washing machine automatically selects a corresponding washing program according to the amount of laundry in the inner tub known from the weighing program; or the user manually selects the washing program according to the washing machine detecting the amount of the learned laundry.

Further, the washing program is adjusted according to the obtained dust content, and at least one of the washing time, the water inflow amount, the washing temperature, the washing addition amount, the motor rotation speed, and the washing and rinsing times in the washing program is changed as the dust content value changes or Two or more combinations;

Preferably, the higher the detected dust content, the greater the values of washing time, water influx, washing temperature, washing addition amount, motor rotation speed, and washing and rinsing times in the washing program.

Further, after controlling the clothes to be turned over for a set time, at least obtaining the dust content at two different positions in the barrel, and treating the dust contents of the two different positions with different preset weights to obtain a final dust content value;

Preferably, the dust content of the upper, middle, and lower positions in the bucket is obtained, and the dust contents of the upper, middle, and lower positions are respectively multiplied by the corresponding weight coefficients, and then added to obtain the final dust content value.

After adopting the above technical solution, the present invention has the following advantageous effects compared with the prior art.

1. A dust sensor is arranged on the outer wall of the outer tub of the washing machine or under the balance ring of the washing machine, and the dust content in the drum of the washing machine can be detected, so that the dust content in the barrel can be determined according to the obtained dust content in the barrel, and then the dust is determined according to the dust. The content is adjusted for the washing parameters in the washing program;

2. On the basis of weighing and selecting the corresponding washing program, according to the amount of dust in the laundry, the washing program is adjusted accordingly, thereby avoiding the laundry washing caused by selecting an inappropriate washing program according to the amount of the laundry. Waste of resources caused by net or excessive washing;

3. The washing machine can quickly and accurately detect the dust content in the clothes, thereby effectively determining the staininess of the clothes, and using the detected values corresponding to the parameters of the revised washing program, thereby achieving an intelligent regulation washing procedure, which can be quickly and conveniently without manual selection. The washing parameters of the washing program are adjusted to reduce the manual operation and increase the intelligence of the washing process.

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. It is apparent that the drawings in the following description are only some embodiments, and other drawings may be obtained from those skilled in the art without departing from the drawings. In the drawing:

1 is a schematic view showing a mounting structure of a dust sensor according to an embodiment of the present invention;

2 is a schematic view showing another installation structure of a dust sensor in an embodiment of the present invention;

Figure 3 is a flow chart showing a method of controlling a washing machine in an embodiment of the present invention;

4 is a flow chart showing a control method of a washing machine in another embodiment of the present invention.

DESCRIPTION OF REFERENCE NUMERALS: 1-outer barrel, 2-inner barrel, 3-balance ring, 4-dust sensor

It is to be understood that the drawings and the written description are not intended to limit the scope of the present invention in any way.

Detailed ways

The technical solutions in the embodiments are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The invention is not intended to limit the scope of the invention.

The dust content of the laundry in the present invention reflects the dirtiness of the laundry. Since the laundry is in use, the dander and hair falling off the human skin may adhere to the laundry, and the dust and particles in the environment may also adhere to the laundry. That is to say, the higher the dust content in the clothes, the dirtier the clothes, and vice versa, the lower the dust content in the clothes, the cleaner the clothes. Then the clothes with high dust content need more washing water and longer washing time to wash the clothes, and the corresponding washing requires more detergent and rinsing times; and the clothes with less dust content need less. The washing water and the shorter washing time are used for washing, and the corresponding detergent and rinsing times are also less required.

Embodiment 1

1 and 2 are schematic views showing the installation structure of a dust sensor in a washing machine according to an embodiment of the present invention. Among them, the washing machine in the embodiment of the present invention may be a pulsator washing machine including a motor and a pulsator. The pulsator rotates under the driving of the motor, thereby driving the dry clothes in the inner tub to rotate. The washing machine includes an outer tub 1, an inner tub 2, a balance ring 3, and a dust sensor 4. In this embodiment, the dust content in the barrel is detected, and refers to an area in the inner tub 2 of the washing machine or between the inner and outer barrels of the washing machine. The dust content in the inner tub 2 of the washing machine is detected by setting a dust sensor.

FIG. 1 is a schematic view showing the installation structure of a dust sensor in a washing machine according to an embodiment of the present invention. Three dust sensors 4 are disposed at three upper, middle and lower positions of the outer wall of the outer tub 1, and the washing machine is weighed by the weighing unit. During the process, the clothes in the drum are stirred, so that the dust in the clothes is diffused into the barrel, and the dust content in the outer barrel 1 is detected by the three sensors 4 provided, and the dust sensors 4 disposed at the upper, middle and lower positions respectively The dust content of the upper, middle and lower positions in the inner tub 2 is detected.

The three dust sensors 4 disposed at three positions can more accurately detect the true value of the dust content in the inner tub 2. The main control unit of the washing machine includes a main control program disposed in the computer board, which is obtained according to the weighing unit. The weight of the clothes is selected according to the corresponding washing procedure, and the obtained dust content in the barrel is processed to obtain more accurate dust content information, and different dust contents can correspondingly reflect the dirtiness of the clothes, thereby being able to be based on the true dirtiness of the clothes. The laundry is washed with corresponding washing parameters.

FIG. 2 is a schematic view showing the installation structure of the dust sensor in the washing machine according to an embodiment of the present invention. A dust sensor is disposed on the balance ring 3 of the washing machine, and a dust sensor is disposed on the balance ring to block the inside of the inner tub 2 of the washing machine. The dust content is detected, and the dust sensor disposed on the balance ring 3 detects at least the dust content at a height position in the barrel.

In the embodiment of the invention, the washing machine is provided with a weighing unit to perform weighing on the laundry in the inner tub of the washing machine for detecting. In the embodiment of the present invention, when the weighing unit includes the weighing detection of the washing machine, the Hall sensor detects the current value of the motor, so as to derive the corresponding load weighing value in the barrel according to the current detection value.

In the embodiment of the present invention, when the washing machine executes the weighing procedure, the dust sensor rotates and stirs the dry clothes in the inner tub, so that the dust on the dry clothes is stirred and diffused into the outer tub, and the weighing program is executed. During the time period, the dust content in the outer tub of the washing machine is detected, and the dust content in the outer tub of the washing machine is detected to obtain the dirtyness of the laundry in the tub.

By detecting the dust content of the clothes after the clothes are put on and before the washing into the water, the total time consumption of the program is saved, and the accurate acquisition of the dust content of the laundry to be washed is achieved.

Embodiment 2

3 is a flow chart of a method of controlling a washing machine in accordance with an embodiment of the present invention. Among them, the washing machine in the embodiment of the present invention may be a pulsator washing machine including a motor and a pulsator. After the clothes are put into the clothes, before the washing machine enters the water, the pulsator rotates under the driving of the motor, thereby driving the clothes in the inner tub to be turned over.

As shown in FIG. 3, the control method of the washing machine includes the following steps:

S1. Control the clothes to turn over a set time before the washing machine enters the water after the clothes are finished.

After the laundry is placed in the inner tub of the washing machine, the user covers the upper cover of the washing machine and starts the washing process. At this time, the washing machine first starts the motor to rotate without adding water and any detergent. The motor rotates and drives the pulsator at the bottom of the inner tub to rotate. The motor drives the pulsator to rotate in a certain manner and the running speed, thereby stirring the dry clothes in the inner tub, and stopping the rotation after the motor runs for a set time. In a set time, according to an embodiment of the present invention, the motor can be continuously rotated; according to another embodiment of the present invention, the motor can also be intermittently rotated, that is, rotating and stopping to cooperate with the dry laundry in the inner tub. Turn. In the embodiment of the present invention, before the water in the washing machine and the laundry is not wetted by the washing water, the laundry is controlled to be turned over for a set time, which is more advantageous for the dust, particles and animal dander attached to the clothes in the barrel. The dust and particles diffuse into the bucket during the turning process, so that the dust sensor disposed on the inner tub or the outer tub or the balance ring can more accurately obtain the dust content in the inner tub.

For example, at the beginning of the washing process, the motor drives the pulsator to rotate for a set time of 1 minute or 2 minutes. During this time period, the motor rotates at a certain speed, thereby driving the pulsator to agitate the dry clothes in the bucket. The motor can be rotated for 15 seconds or 5 seconds for 10 seconds, and the motor can be reversed and matched to improve the turning of the clothes, which is more conducive to the spread of dust attached to the clothes. After the set time has elapsed, the motor stops rotating.

S2. After the clothing is turned over, the dust sensor acquires the dust content in the barrel.

After the motor is rotated, the dust sensor disposed in the inner tub or the outer tub or the balance ring of the washing machine detects the dust content in the barrel, thereby obtaining the dust content in the barrel, and the dust sensor may be an ultrasonic sensor, an infrared sensor or a laser sensor. There is any sensor that can detect the dust content inside the container. In the embodiment of the present invention, an ultrasonic sensor is employed as the dust sensor for detecting the dust content.

By the issuance and acceptance of ultrasonic waves, a relatively accurate value can be obtained for the dust concentration in the tub, thereby obtaining the dust content in the tub.

S3. Display the dust state according to the obtained dust content and/or adjust the washing procedure.

Before obtaining the dust content, the user selects a washing program according to the needs of the user or the washing machine according to the weight of the clothes. After the dust sensor acquires the dust content in the barrel, the computer control panel of the washing machine according to the content of the dust in the barrel is already The washing parameters of the selected washing program are adjusted accordingly. In an embodiment of the invention, the washing parameters of the adjusted washing program specifically refer to at least one of washing time, water influx, washing temperature, motor speed, and washing and rinsing times, or a combination of two or more. In another embodiment of the present invention, if the washing machine is a fully automatic washing machine with an automatic dispensing function, the amount of detergent and softener to be dispensed can also be adjusted.

After obtaining the dust content, the washing parameters of the corresponding washing program are adjusted. In the embodiment of the present invention, the basic logic is that, based on the existing washing program, it is judged that the laundry having a higher dust content is dirty. The clothes need more water, longer washing time, higher rotation speed and more washing times to wash the clothes; judge the clothes with less dust content as cleaner clothes, need less water, shorter washing time, The laundry is washed at a lower rotation speed and a lower number of washings. The higher the dust content detected, the greater the values of washing time, water inflow, washing temperature, washing addition amount, motor rotation speed, and washing and rinsing times in the washing program. That is to say, on the basis of the existing washing procedure, the above-described adjustment of the washing parameters is carried out according to the degree of soiling of the laundry in the tub, and the laundry is washed in a more suitable washing program.

For example, the same is based on the 800 speed of the clothing selection, 50 minutes washing, medium water level and one rinsing washing program. If the dust content in the barrel is detected to be relatively dirty, the corresponding washing parameter is 1000 rpm. , 70 minutes washing, high water level and two rinsing as washing parameters to finally perform the washing procedure; similarly, if it is detected that the dust content in the barrel is low, that is, the cleaner clothes, the corresponding adjustment washing parameter is 600 The speed, 40 minute wash, low water level and one rinse are the wash parameters to finally perform the wash procedure. In this way, the laundry can be washed according to the actual condition of the laundry, and the laundry is not cleaned or excessively washed, and the smart washing is realized.

In an embodiment of the present invention, in a fully automatic washing machine with an automatic dispensing function, in the case of the same weight of the laundry, the detergent to be dispensed is precisely adjusted and controlled according to the obtained dust content, thereby Achieving that the detergent is not excessively used to cause detergent residue or excessive rinsing of water resources waste, and the laundry is not cleaned due to insufficient use of the detergent.

In an embodiment of the invention, the specific adjustment of the washing parameters can be obtained from a large amount of experimental data.

At the same time, the obtained dust content can also be displayed on the control panel of the washing machine or the device with the display unit having information connection with the washing machine, so as to give the user a certain understanding of the degree of dirt in the laundry.

It should be noted that the instruction to adjust the washing program according to the detected dust content in the barrel may be issued by a main control program installed on the washing machine computer board, or may be a cloud server or a mobile terminal communicably connected with the washing machine. The upper control unit is issued; and the adjustment rules of the washing program can also be stored in the washing machine or the cloud server or the mobile terminal. The adjustment command and the washing program adjustment rule in the present embodiment are respectively issued by the main control program on the washing machine computer board and stored on the storage unit of the washing machine.

Embodiment 3

4 is a flow chart of a control method of a washing machine according to an embodiment of the present invention. As shown in FIG. 4, the control method of the washing machine includes the following steps:

S101. After the laundry is put into the clothes, the laundry is turned over for a set time before the washing machine enters the water.

In the present embodiment, in order to more fully scatter the laundry placed in the inner tub of the washing machine, particles and particulate matter such as dust adhering to the laundry and dandruff hair can be sufficiently diffused in the inner tub of the washing machine. The motor adopts a certain proportion of positive and negative reversal to drive the washing machine's pulsator to stir the dry clothes, because the water will make the dust on the clothes more easily adhere to the clothes, so in the process of shaking, a relatively dry environment is needed. Conducive to the diffusion of dust, and the positive and negative combination can increase the relative movement between the clothes, between the clothes and the pulsator, and between the clothes and the inner barrel to a certain extent, so as to increase the friction between each other to make the dust It is easier to diffuse in the outer tub; at the same time, the air vortex formed by the relative movement can make the dust more easily and evenly distributed in the barrel.

In this embodiment, during the forward and reverse rotation of the motor, the tempo of controlling the forward rotation of the motor may be 0.2 seconds and 0.5 seconds, and the tempo of controlling the motor reverse may be 0.3 seconds and 0.6 seconds.

S102. During the process of inverting the laundry, the laundry in the tub is weighed and the corresponding washing program is selected according to the weighing result or the user manually selects the washing program.

The weighing process may be various weighing methods in the prior art. In the embodiment of the present invention, the rotation speed of the motor rotor is selected, and the dry clothing corresponding to the rotation speed detection value of the motor rotor is determined. The weight setting value is used as the dry laundry weight detection amount and output to determine the weight of the laundry, and further, the weight of the dry laundry in the tub. Then, in the present embodiment, step S102 and step S101 are basically completed in synchronization, that is, in the process of diverting the dry laundry so that the dust adhering to the laundry is diffused, the dry weight of the laundry is also detected.

According to the weighing result, the computer control panel automatically selects the washing program corresponding to the weighing result.

At the same time, the user can also manually select the washing program according to the weighing result or his own needs. Finally, the computer control panel of the washing machine is used as the final washing program according to the washing program automatically selected by the weighing or the washing program manually selected by the user.

S103. Obtain a dust content of the upper, middle, and lower heights in the bucket, and process the powder with different preset weights to obtain a final dust content value.

In this embodiment, three dust sensors are installed on the upper, middle and lower positions of the outer wall of the outer tub, and the corresponding dust sensors in the upper, middle and lower positions detect corresponding positions, namely upper, middle and lower three. The dust content of the location. Three dust sensors are arranged at the upper, middle and lower positions of the outer wall of the outer tub to better detect the dust content in the bucket, because the dust of different sizes has different weights, and the dust in the lower part will be under the action of gravity. Naturally more, and if only one sensor is set, the actual dust content in the barrel cannot be accurately detected. Three dust sensors are arranged on the upper, middle and lower positions of the outer wall of the outer tub, and the actual content of the dust in the bucket can be obtained more accurately by weighting, thereby more accurately adjusting the washing parameters according to the dust content.

For example, the weights of the dust contents in the upper, middle and lower positions are 0.5, 0.3, 0.2 or 0.4, 0.3, 0.3, so that the dust content based on the detected upper, middle and lower positions is weighted to obtain a more accurate dust. content.

S104: Match the obtained dust content with a preset dust content range, and different dust content ranges correspond to modified values of different washing parameters.

The washing machine presets different dust content ranges according to the magnitude of the dust content, and the different dust ranges correspond to the modified values of different washing parameters, and the obtained dust content is matched with the preset dust content range, and according to the matched dust content. The modified value corresponding to the range adjusts the washing parameters.

For different washing procedures, the washing parameters that can be adjusted are divided into several ranges, corresponding to one-to-one correspondence with different dust content ranges.

For example, for Washing Procedure 1, the default standard wash parameters are 800 rpm, 50 minute wash, medium water level and one rinse. Then the range of wash parameters that can be adjusted is:

Adjustment 1: "Increase 400 rpm, increase the actual washing time by 20 minutes, increase the water consumption, increase the number of rinsing times 1 time";

Adjustment 2: "Increase 200 rpm, increase washing time by 10 minutes, increase water consumption, increase the number of rinsing times 1 time";

Adjustment 3: “Reduce 200 rpm, reduce washing time by 10 minutes, reduce water consumption, and maintain rinsing times”.

Then different dust content ranges, range 1: "1 to 2", range 2: "2 to 3", range 3: "3 to 4" correspond to different adjustment ranges.

That is, the range 1 corresponds to the adjustment 3, the range 2 corresponds to the adjustment 2, and the range 3 corresponds to the adjustment 1.

S105. Adjust the washing parameter of the washing program according to the modified value of the washing parameter corresponding to the matched dust content range.

Then, according to the weighted dust content, the dust content is classified into different dust content ranges. If the dust content is 2.5, the dust content falls within the range 2, and the corresponding adjustment is 2, then the corresponding adjustment is 1000 rotation speed in the washing program 1. 60 minutes washing time, high water level, rinse twice.

In this embodiment, the adjustment is for all washing procedures, ie different washing programs have different default washing parameters, then the corresponding adjustments are made based on the corresponding default washing parameters. It should be noted that the adjustment in this embodiment may not only be three sets of adjustments, but may be divided into more sets of adjustments to adjust the washing parameters.

The overall adjustment logic is the same as described in the first embodiment. The dust more represents that the clothes are more dirty, and it takes longer, more water, higher rotation speed, more times of rinsing to perform the actual washing process; Less dust content means that the clothes are cleaner, requiring less time, lower speed, less water usage, and fewer rinse times to perform the actual washing process.

With the laundry washing method of the embodiment, the laundry can be intelligently washed to meet the washing demand of the actual laundry, saving resources and time, and improving user satisfaction.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Out, Clockwise, Counterclockwise, Axial The orientation or positional relationship of the "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or The elements must have a particular orientation, are constructed and operated in a particular orientation and are therefore not to be construed as limiting.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any technology that is familiar with the present patent. Those skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content of the above-mentioned hints, without departing from the technical solution of the present invention, according to the present invention. Technical simplifications Any simple modifications, equivalent variations and modifications of the above embodiments are still within the scope of the present invention.

Claims

A washing machine with a dust sensor, characterized in that the washing machine is equipped with a dust sensor for obtaining a dust content in a drum of the washing machine.
A washing machine with a dust sensor according to claim 1, wherein the dust sensor is disposed on the inner tub and/or the outer tub and/or the balance ring of the washing machine, and the dust sensor detects the dust content between the inner and outer tubs and/or the inner tub. .
The washing machine with a dust sensor according to claim 1 or 2, wherein a dust sensor is respectively disposed at at least two positions of different heights of the inner tub and/or the outer tub, and the dust sensors at different positions respectively detect the dust content of the height;

Preferably, dust sensors are respectively disposed on the upper, middle and lower positions of the outer wall of the outer tub, and the dust contents of the upper, middle and lower heights in the barrel are respectively detected.
A washing machine with a dust sensor according to claim 1 or 2, characterized in that at least one dust sensor is provided on the balance ring of the washing machine, and the dust sensor detects the dust content of at least one height position in the drum of the washing machine.
The washing machine with a dust sensor according to any one of claims 1 to 4, characterized in that the washing machine is provided with a weighing unit for weighing the laundry in the inner tub of the washing machine; the washing machine is further provided with a main control unit, The washing procedure is selected or recommended according to the weight of the laundry, and the washing procedure is adjusted according to the detected dust content.
A control method of a washing machine with a dust sensor, characterized in that a dust sensor is arranged in the washing machine, and the method comprises the following steps:

Put the laundry on the washing machine;

The dust sensor acquires the dust content in the barrel;

The dust status is indicated based on the obtained dust content and/or the washing procedure is adjusted.
The control method of the washing machine according to claim 6, wherein the dust sensor acquires the dust content in the bucket after the laundry is turned over for a set time after the laundry is put into the water, and the dust state is displayed according to the obtained dust content and/or Or adjust the washing program.
A control method of a washing machine according to claim 7, further comprising the steps of:

In the process of controlling the turning of the laundry, the laundry in the inner tub of the washing machine is weighed, and the washing program is selected or recommended according to the weighing result;

Preferably, the user determines whether the washing program is selected or automatically selects the washing program.
The control method of the washing machine according to any one of claims 6 to 8, characterized in that the washing program is adjusted according to the obtained dust content, and the washing time, the water inflow amount, the washing temperature, and the washing in the washing program are changed as the dust content value changes. At least one of an additive amount, a motor rotation speed, and a number of washing and rinsing times or a combination of two or more;

Preferably, the higher the detected dust content, the greater the values of washing time, water influx, washing temperature, washing addition amount, motor rotation speed, and washing and rinsing times in the washing program.
The control method of a washing machine according to any one of claims 6 to 9, characterized in that after controlling the laundry to be turned over for a set time, at least the dust content at two different positions in the tub is obtained, and the dust contents of the two different positions are different. After the preset weight is processed, the final dust content value is obtained;

Preferably, the dust content of the upper, middle, and lower positions in the bucket is obtained, and the dust contents of the upper, middle, and lower positions are respectively multiplied by the corresponding weight coefficients, and then added to obtain the final dust content value.