WO2022089112A1

WO2022089112A1 - Water inflow control method for washing machine and washing machine

Info

Publication number: WO2022089112A1
Application number: PCT/CN2021/120696
Authority: WO
Inventors: 赵志强; 许升; 吕佩师; 于明亮
Original assignee: 青岛海尔滚筒洗衣机有限公司; 海尔智家股份有限公司
Priority date: 2020-10-29
Filing date: 2021-09-26
Publication date: 2022-05-05
Also published as: CN114427156A

Abstract

A water inflow control method for a washing machine and the washing machine. The washing machine comprises an inner tub (1) that can independently hold washing water when washing laundry. The control method comprises the following steps: obtaining the weight M₁ of laundry to be washed, and feeding water into the inner tub (1); controlling the rotation of the inner tub (1), obtaining a first working parameter of a washing machine motor (13) when the inner tub (1) rotates in a set working condition, and calculating the total weight M₂ of the laundry and water in the inner tub (1) according to the first working parameter; and calculating an actual water inflow amount, M=M₂-M₁, in the inner tub (1), and when it is determined that the actual water inflow amount M in the inner tub (1) reaches a preset water inflow amount M₀, stopping the water inflow. The water inflow amount of the washing machine can be obtained by means of the working parameter of the motor (13) in the set working condition, without needing to measure the water inflow amount of the washing machine by means of a water amount measurement device, thereby controlling the water inflow of the washing machine. The control method is simple and efficient, with low cost, and effectively solves the problem of difficulty in controlling the water inflow amount of washing machines having no holes in tubs.

Description

Water inlet control method for washing machine and washing machine

technical field

The invention belongs to the technical field of clothing treatment equipment, and in particular relates to a water inlet control method of a washing machine and a washing machine.

Background technique

Washing machine is one of the most commonly used household appliances in people's daily life. The use of washing machines brings convenience to people's lives. In the drum washing machine in the prior art, the outer drum holds water, the inner drum rotates for washing, and the inner drum wall is provided with holes for feeding washing water into the inner drum or for dehydrating the clothes in the inner drum. The flow between the inner and outer cylinders will lead to the accumulation of dirt and scale between the inner and outer cylinders, causing a large number of bacteria to multiply, causing secondary pollution to the clothes, and seriously threatening the health of consumers. The filling of the water between the two causes the waste of useless water, therefore, people design the non-porous inner drum washing machine.

However, because the non-porous inner tub washing machine no longer has water in the outer tub, and the inner tub is a rotating drum, the existing method of detecting the water intake of the inner tub by using the outer tub air chamber and the water level sensor does not work in the non-porous inner tub. Cannot be used in a drum washing machine.

The Chinese patent with the application number of CN201811237071.8 discloses a drum washing machine and a control method thereof. The drum washing machine includes an inner drum and a water inlet pipeline, and the inner drum is a non-porous inner drum. It includes a water measuring device for measuring the water intake, the water intake pipeline is connected with the water measuring device, and the water measuring device is communicated with the inner cylinder. The water measuring device includes a water level detecting device for detecting the water measuring tank. The water level detection device is a liquid level sensor, the liquid level sensor includes an air chamber and a sensor unit, and the air chamber is communicated with the water volume tank; Multiple water level detection probes arranged in the depth direction.

The drum washing machine disclosed in the above application is provided with a water measuring device, and before the water is fed into the inner drum, it enters the water measuring device and is quantitatively measured by the water level detection device, and then the water intake of the washing machine is controlled, and an additional water measuring device is required. The structure of the washing machine and the water level detection device make the structure of the washing machine more complicated, the cost is higher, and the control method is cumbersome and difficult to implement.

The present invention has been made in view of this.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a water inflow control method which is simpler and lower in cost, and can obtain the water inflow of the washing machine without passing through the water amount detection device.

In order to solve the above-mentioned technical problems, the basic conception of the technical scheme adopted in the present invention is:

A water inlet control method for a washing machine, wherein the washing machine includes an inner tub that can independently hold washing water when washing clothes, and the control method includes the following steps:

Obtain the weight M ₁ of the laundry to be washed, and feed water into the inner tub;

Controlling the rotation of the inner tub, obtaining the first working parameter of the washing machine motor when the inner tub is rotated to the set working condition, and calculating the total weight M ₂ of the clothes and water in the inner tub according to the first working parameter;

The actual water inflow M=M ₂ -M ₁ in the inner cylinder is calculated, and when it is determined that the actual water inflow M in the inner cylinder reaches the preset water inflow M ₀ , the water inflow is stopped.

Further, after the clothes are put in the inner tub, before the washing machine starts to enter the water, the inner tub is controlled to rotate, and the second working parameter of the washing machine motor when the inner tub is rotated to the set working condition is obtained, and calculated according to the second working parameter. The weight M ₁ of the laundry in the inner tub.

Further, the first working parameter/second working parameter is the first working current/second working current of the washing machine motor; or, the first working parameter/second working parameter is the first working power/second working current of the washing machine motor working power.

Further, the set working conditions include n different set working conditions, and the values of the first working parameters corresponding to the washing machine motor when the inner tub is rotated to different set working conditions are obtained;

According to the obtained different values of the first working parameter corresponding to the washing machine motor under different set working conditions, the total weights M ₂₁ , M ₂₂ , , , M _2n of the clothes and water in the inner tub are calculated respectively, and the calculated The average total weight of laundry and water in the inner tub M ₂ =(M ₂₁ +M ₂₂ +, , , M _2n )/n, where n≥2.

Further, the set working condition is that when the inner cylinder rotates to the set rotation speed N ₀ , the set rotation speed N ₀ =60-100r//min;

Preferably, after the inner cylinder starts to enter water, the inner cylinder is controlled to be accelerated step by step to the set rotational speed N ₀ .

Further, after obtaining the weight M1 _of the clothes, start to control the intermittent water feeding into the inner tub, control the inner tub to rotate to the set working condition during the intermittent time, and calculate the clothes in the inner tub according to the working current parameter of the washing machine motor at this time. and the total weight of water M ₂ .

Further, the value of the preset water intake amount M ₀ is determined according to a data table stored in the washing machine server; or, according to the obtained weight M ₁ of the clothes in the inner tub, the theoretical water intake amount of the washing machine is calculated as the preset water intake amount. M ₀ .

Further, after the water inflow is started, the actual water inflow amount M of the inner cylinder is detected and calculated at _a certain preset time interval; Calculate the actual water intake M of the inner cylinder;

Preferably, the actual water intake M of the inner tub is calculated and fed back to the control unit of the washing machine and displayed on the display screen of the washing machine.

Further, the washing machine further includes a communication unit, which is connected to the intelligent terminal for communication, and feeds back the actual water intake M of the inner tub calculated each time to the intelligent terminal for display. Describe the intelligent terminal to remotely control the water inflow of the washing machine;

Preferably, when it is determined that the actual water inflow M is about to reach the preset water inflow amount _M0 , a prompt message is sent to the user through the smart terminal/local end, and if the user does not continue to enter the water within the set time command, stop the water supply.

Another object of the present invention is to provide a washing machine using any one of the above-mentioned methods for controlling water inflow of a washing machine.

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

1. The method for controlling the water inflow of a washing machine provided by the present invention does not need to detect and obtain the water inflow amount of the washing machine through the water amount detection device, and can obtain the water inflow amount of the washing machine by acquiring the working parameters of the washing machine motor when the inner drum rotates to the set working condition, Further, the water inflow of the washing machine is controlled, the control method is simple, the cost is low, and the problem of difficulty in controlling the water inflow of the non-porous inner tub washing machine is effectively solved.

2. The water inlet control method of the washing machine provided by the present invention obtains the weight of the clothes in the inner tub by obtaining the working parameters of the washing machine motor when the inner tub rotates to the set working condition before the washing machine does not enter the water, without setting the weight The sensor is used to obtain the weight of the laundry, which simplifies the structure of the washing machine and further reduces the cost. At the same time, it also automatically matches and determines the optimal water intake according to the weight information of the clothes, which has a higher degree of automation and effectively improves the washing effect of the washing machine.

3. In the method for controlling the water inflow of a washing machine provided by the present invention, the average weight of the clothes and water in the inner tub is obtained by calculating the corresponding total weight of the clothes and the water through the corresponding first working parameter values of the washing machine motor under different working conditions. , taking the average value as the current actual water intake, the measurement results are more accurate and reasonable, and the accuracy of water volume control is improved.

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

Description of drawings

The accompanying drawings, as a part of the present invention, are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings in the following description are only some embodiments, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

In the attached image:

Fig. 1 is the schematic flow chart of the first water inflow control method in the embodiment of the present invention;

Fig. 2 is the schematic flow chart of the second water inflow control method in the embodiment of the present invention;

3 is a schematic structural diagram of a washing machine in an embodiment of the present invention;

In the picture:

1. Inner cylinder; 2. Outer cylinder; 3. Centrifugal valve; 4. Upper panel; 5. Detergent adding box; 7. Sealed cabin; 8. Machine door; 9. Inner cylinder door; 10. Water inlet pipeline; 11 , water inlet valve; 12, foot; 13, motor; 14, inner cylindrical shaft; 15, hollow channel; 16, shell; 17, lifting rib.

It should be noted that these drawings and written descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention , but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; may be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example 1

As shown in FIG. 1 to FIG. 2 , the present embodiment provides a water inlet control method for a washing machine. The washing machine includes an inner tub that can independently hold washing water when washing clothes, and the control method includes the following steps:

In the method for controlling the water inflow of a washing machine provided in this embodiment, the water inflow amount of the washing machine can be obtained by acquiring the first working parameter of the washing machine motor when the inner drum rotates to the set working condition without detecting and obtaining the water inflow amount of the washing machine through the water amount detecting device. , and further control the water inflow of the washing machine, the control method is simple, the cost is low, and the problem of difficulty in detecting the water inflow of the non-porous inner tub washing machine is effectively solved.

Further, after the clothes are put in the inner tub, before the washing machine starts to enter the water, control the rotation of the inner tub, and obtain the second working parameter of the washing machine motor when the inner tub rotates to the set working condition, and calculate according to the second working parameter. The weight M ₁ of the laundry in the inner tub.

Before the washing machine is filled with water, the weight of the clothes in the inner tub is obtained by obtaining the second working parameter of the washing machine motor when the inner tub rotates to the set working condition. There is no need to set the weight sensor to obtain the weight of the clothes, which simplifies the structure of the washing machine. , further reducing costs.

The method for controlling the water inflow of a washing machine provided in this embodiment can be applied to the water inflow control of the washing program, or can also be applied to the water inflow control of the rinsing program.

Further, in this embodiment, the first working parameter/second working parameter is the first working current/second working current of the washing machine motor; or, the first working parameter/second working parameter is the first working current/second working parameter of the washing machine motor Working power/second working power.

In the method for controlling the water inflow of a washing machine provided by this embodiment, the total weight of the clothes and water in the inner tub can be calculated by using the detected working current or working power value of the motor of the washing machine when the working condition is set, combined with the theoretical formula M ₂ , no additional weight detection device is required, the measurement method is simpler and the cost is lower.

Further, the set working conditions include n different set working conditions, and the values of the first working parameters corresponding to the washing machine motor when the inner tub rotates to different set working conditions are obtained.

In the above-mentioned embodiment, the average weight of the clothes and water in the inner tub is obtained by calculating the corresponding total weight of the clothes and water through the corresponding first working parameter values of the washing machine motor under different working conditions, and the average value is taken as the current value. The actual water inflow, the measurement results are more accurate and reasonable, and the accuracy of water control is further improved.

Further, the set working condition is that when the inner cylinder rotates to the set rotation speed N ₀ , the set rotation speed N ₀ =60-100r//min. In this embodiment, the set working condition is when the rotational speed of the inner cylinder reaches the set value, but the set working condition is not limited to the set rotating speed.

Preferably, after the inner cylinder starts to enter water, the inner cylinder is controlled to increase the speed step by step to the set rotation speed N ₀ , and the rotation speed of the inner cylinder is controlled to gradually increase to the set rotation speed, so that the shaking of the water in the inner cylinder will be relatively reduced, The accuracy of the measurement results is improved, and it is avoided that the rotational inertia of the washing water is large due to the rapid acceleration of the inner cylinder, which affects the accuracy of the measurement.

Specifically, after the clothes are put into the inner tub and before the washing machine starts to enter water, the inner tub can be controlled to rotate to the set rotational speed N ₀ , the current second working current/second working power of the washing machine motor can be detected, and the current second working current/second working power of the washing machine motor can be detected. The second working current/second working power is calculated to obtain the weight M ₁ of the laundry in the inner tub.

After the weight of the clothes in the inner tub is obtained, the control of water feeding into the inner tub is started. When the inner tub rotates to the set rotation speed N ₀ again, the current first working current/first working power of the washing machine motor is detected, and according to the washing machine motor The current first working current/first working power is calculated to obtain the total weight M ₂ of the clothes and water in the inner tub.

Preferably, the set working conditions include two types, the first set working condition is to control the rotational speed of the inner cylinder to reach the set rotational speed N ₀ , and the second set working condition is to control the rotational speed of the inner cylinder to reach the set rotational speed N ₁ , the set rotational speed N ₀ is smaller than the set rotational speed N ₁ .

Specifically, when the preset detection time is reached, first control the rotation speed of the inner tub to increase to the set rotation speed N ₀ , detect the first working current/first working power of the washing machine motor at this time, and calculate the water in the inner tub at this time. and the weight M ₂₁ of the clothes, then control the rotation speed of the inner tub to increase to the set rotation speed N ₁ , detect the first working current/first working power of the washing machine motor at this time, and calculate the weight M of the water and clothes in the inner tub at this time. ₂₂ , and according to M ₂₁ and M ₂₂ , calculate the average total weight of laundry and water in the inner tub, M ₂ =(M ₂₁ +M ₂₂ )/2.

In the above embodiment, by controlling the average value of the weight of the clothes and the water in the inner cylinder as the actual water inflow when the inner cylinder rotates to different rotational speeds, the water inflow M ₂ is obtained by the method of the average value, which improves the accuracy of the measurement , reducing the measurement error.

Specifically, the inner tub is controlled to suspend the time T ₂ every time the water enters the water T ₁ , and the water is fed into the inner tub in an intermittent water intake manner, where T ₁ >T ₂ , and the washing machine is controlled to detect the current water during the intermittent time of water intake. By adopting the above-mentioned control method, the water inflow can not only ensure the normal water inflow of the washing machine, but also does not affect the detection of the water inflow.

Further, the value of the preset water intake amount M ₀ can be determined according to a data table stored in the washing machine server; or, in another preferred solution, calculated according to the obtained weight M ₁ of the clothes in the inner tub The theoretical water inflow of the washing machine is obtained as the preset water inflow M ₀ .

In the above solution, the optimal preset water intake is automatically matched and determined according to the weight information of the clothes, the degree of automation is higher, and the washing effect of the washing machine is effectively improved.

Further, in one embodiment, after the water inflow is started, the actual water inflow M of the inner cylinder is detected and calculated once at a certain preset time T3, and the preset T3 time can be based on the preset water inflow _M ₀ . The value of the preset water inflow _M0 is smaller, the preset T3 time _of the interval can be shortened accordingly, and the larger the value of the preset water inflow M0 is, the preset T3 time _of the interval can be correspondingly increased .

Or, in another embodiment, after the set time _t1 after the start of water inflow, the actual water inflow amount M of the inner cylinder is detected and calculated at a certain preset T3 time interval, because in the initial stage of water inflow , it will not immediately reach or approach the preset water inflow M ₀ , so the detection is started after the _t1 time of the water inflow, which can save the trouble caused by unnecessary detection in the early stage, save energy and simplify the control steps.

Or, in another embodiment, after the set time _t1 after the start of water intake, the actual water intake _M of the inner cylinder is detected and calculated every preset time T3, and when it is judged that the actual water intake M reaches the th Two preset values M ₀ ˊ, where M ₀ ˊ＜M ₀ , the value of M ₀ ˊ is close to M ₀ , the control is to detect and calculate the actual water intake M of the inner cylinder every preset time T ₄ , where T ₄ <T ₃ .

By adopting the above _- mentioned control method, the control interval detection duration T3 in the early stage of the water inflow is greater _than the interval detection duration T4 in the later stage, which reduces the number of detections, saves the measurement cost and time cost, and at the same time, when the water inflow amount M reaches the second preset When the value is M ₀ ˊ, the detection period is shortened, and the phenomenon that the water intake exceeds the preset water intake M ₀ is avoided.

Preferably, the actual water intake M of the inner tub is calculated and fed back to the control unit of the washing machine and displayed on the display screen of the washing machine. By displaying the actual water inflow M on the display screen of the washing machine, it is convenient for the user to intuitively understand the current water inflow, and the user's use experience is better.

Further, the washing machine further includes a communication unit, which is connected to the intelligent terminal for communication, and feeds back the actual water intake M of the inner tub calculated each time to the intelligent terminal for display. The intelligent terminal remotely controls the water inflow of the washing machine.

By using an intelligent terminal to remotely control the water inflow of the washing machine, the intelligence of the washing machine is improved, and a prompt message is sent to the user when the water inflow M is about to reach the preset water inflow amount M ₀ , and the user can choose whether to continue water inflow.

For example, if the clothes to be washed are made of materials with better water absorption, the required amount of washing water may be more than that of other materials of the same weight. Therefore, when the water intake M is about to reach the preset water intake M ₀ , the user The water inlet time can be selectively extended through the smart terminal or the local end to ensure sufficient washing water volume and ensure the washing effect.

The method for controlling the water inflow of a washing machine provided by this embodiment mainly includes the following steps:

S1: control the inner tub to rotate to the set rotational speed N ₀ , detect the second working parameter of the washing machine motor at this time, and calculate the weight M ₁ of the clothes in the inner tub;

S2: According to the obtained weight M ₁ of the clothes, calculate the theoretical water intake M ₀ of the inner cylinder through a logical formula;

S3: control the inner tub to rotate to the set rotational speed N ₀ , detect the second working parameter of the washing machine motor at this time, and calculate the weight M ₂ of the clothes and water in the inner tub;

S4: Calculate the actual water intake of the inner cylinder M=M ₂ -M ₁ ;

S5: when the calculated water quantity and quality of the inner cylinder M=M ₂ -M ₁ reaches M ₀ , the water inflow is completed;

S6: Carry out a washing/rinsing step.

Embodiment 2

On the basis of the first embodiment, this embodiment provides a washing machine that adopts the water inflow control method of the washing machine.

As shown in FIG. 3 , the washing machine provided in this embodiment is a drum washing machine with a non-porous inner drum front-opening structure, which has a simple structure and can greatly reduce the need for filling washing/rinsing water between the inner drum 1 and the outer drum 2 . It reduces the washing water consumption of the washing machine, avoids the possibility of dirt adhesion between the inner tub 1 and the outer tub 2, greatly improves the user's health and user experience, and greatly saves water resources.

The front-loading washing machine of this embodiment has a casing 16, and the casing 16 includes: a top panel 4, a front panel, a back panel and a bottom panel. Bottom feet 12 are installed and fixed on the bottom plate for supporting the entire washing machine. There is an outer cylinder 2 inside the outer casing 16, and an inner cylinder 1 is arranged coaxially in the outer cylinder 2. The main purpose of the outer cylinder 2 is to collect the drainage of the inner cylinder 1 and the drainage of the high-speed centrifugal dehydration of the inner cylinder 1. The installation on the outer casing 16 can be opened/closed. the door 8.

Preferably, a lifting rib 17 is provided on the inner cylinder 1 to continuously lift and drop the clothes, so as to wash the clothes. The bottom of the outer tub 2 has a central mounting hole, and the bearing is installed and fixed. The inner tub shaft 14 fastened to the inner tub 1 passes through the illustrated bearing and is connected to the motor 13 of the washing machine. An openable/closable inner cylinder door 9 is installed on the front cylinder opening of the inner cylinder 1, thereby realizing the structure of the inner cylinder 1 as a sealed cabin 7.

Further, the motor 13 of the washing machine drives the inner cylinder 1 to rotate through the inner cylinder shaft 14 and the inner cylinder 1 is driven to rotate. 10 is communicated with the hollow channel 15 of the inner cylinder shaft 14, and water is fed into the inner cylinder 1, and the water inlet pipeline 10 and the hollow channel 15 are connected by dynamic sealing.

One end of the water inlet pipe 10 is communicated with the hollow channel 15 and the other end is communicated with the detergent addition box 5. The detergent addition box 5 has an inlet that communicates with the water inlet valve 11 of the washing machine and an outlet that communicates with the water inlet pipe 10. , When washing or rinsing water, the water inlet valve 11 is controlled to open, the water flows through the detergent addition box 5, mixed with the detergent in the detergent addition box 5, and then enters the water inlet pipeline 10, and passes through the inner cylinder. The hollow channel 15 in the shaft 14 enters the inner barrel 1 .

Further, the peripheral wall of the inner cylinder 1 is provided with a drainage hole, the lifting rib 17 is installed on the inner wall of the inner cylinder 1 corresponding to the drainage hole, and the lifting rib 17 has a lifting casing, and the lifting casing A centrifugal valve 3 is installed, and the centrifugal valve 3 is in a normally closed state. When the rotational speed of the inner cylinder 1 reaches a set value, the centrifugal valve 3 is subjected to centrifugal force to open the drainage hole for drainage.

Preferably, the inner tub 1 of the washing machine provided by this embodiment has a taper, the inner diameter at the middle position is the largest, and the front and rear ends gradually converge toward the middle position. During rotation, the centrifugal water on the conical surface of the inner cylinder 1 will move along the direction of the taper facing the centrifugal valve 3 under the action of centrifugal force, and converge to facilitate drainage, improve drainage efficiency, and effectively achieve efficient dehydration of the non-porous inner cylinder. and centrifugal drainage.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, personnel can make some changes or modifications to equivalent examples of equivalent changes by using the above-mentioned technical content, but any content that does not depart from the technical solution of the present invention is based on the technical solution of the present invention. Substantially any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the solutions of the present invention.

Claims

A water inlet control method for a washing machine, characterized in that the washing machine includes an inner tub that can independently hold washing water when washing clothes, and the control method includes the following steps:

Obtain the weight M 1 of the laundry to be washed, and feed water into the inner tub;

Controlling the rotation of the inner tub, obtaining the first working parameter of the washing machine motor when the inner tub is rotated to the set working condition, and calculating the total weight M 2 of the clothes and water in the inner tub according to the first working parameter;

The actual water inflow M=M 2 -M 1 in the inner cylinder is calculated, and when it is determined that the actual water inflow M in the inner cylinder reaches the preset water inflow M 0 , the water inflow is stopped.
The water inlet control method of a washing machine according to claim 1, wherein:

After the clothes are put into the inner tub and before the washing machine starts to enter the water, the inner tub is controlled to rotate, and the second working parameter of the washing machine motor when the inner tub is rotated to the set working condition is obtained, and the inner tub underwear is calculated according to the second working parameter. weight M 1 of the object.
The water inlet control method of a washing machine according to claim 2, wherein:

The first working parameter/second working parameter is the first working current/second working current of the washing machine motor; or, the first working parameter/second working parameter is the first working power/second working power of the washing machine motor.
The water inlet control method of a washing machine according to claim 1, wherein:

The set working conditions include n different set working conditions, and the value of the first working parameter corresponding to the washing machine motor when the inner tub rotates to different set working conditions is obtained;

According to the obtained different values of the first working parameter corresponding to the washing machine motor under different set working conditions, the total weights M 21 , M 22 , , , M 2n of the clothes and water in the inner tub are calculated respectively, and the calculated The average total weight of laundry and water in the inner tub M 2 =(M 21 +M 22 +, , , M 2n )/n, where n≥2.
The water inlet control method for a washing machine according to any one of claims 1-4, wherein the set operating condition is that when the inner drum rotates to a set rotation speed N 0 , the set rotation speed N 0 =60 -100r//min;

Preferably, after the inner cylinder starts to enter water, the inner cylinder is controlled to be accelerated step by step to the set rotational speed N 0 .
The water inlet control method of a washing machine according to any one of claims 1-4, wherein:

After obtaining the weight M1 of the clothes, start to control the intermittent water feeding into the inner tub, control the inner tub to rotate to the set working condition during the intermittent time, and calculate the difference between the clothes and water in the inner tub according to the working current parameter of the washing machine motor at this time. Total weight M 2 .
The water inlet control method of a washing machine according to any one of claims 1-4, wherein:

The value of the preset water intake amount M 0 is determined according to a data table stored in the washing machine server; or, the theoretical water intake amount of the washing machine is calculated according to the obtained weight M 1 of the clothes in the inner tub as the preset water intake amount M 0 .
The water inlet control method of a washing machine according to any one of claims 1-4, wherein:

After the water inflow starts, the actual water intake M of the inner cylinder is detected and calculated at a certain preset time interval; The actual water intake M of the inner cylinder;

Preferably, the actual water intake M of the inner tub is calculated and fed back to the control unit of the washing machine and displayed on the display screen of the washing machine.
The water inlet control method of a washing machine according to any one of claims 1-4, wherein:

The washing machine further includes a communication unit, which is communicatively connected to the intelligent terminal, and feeds back the actual water intake M of the inner tub calculated each time to the intelligent terminal for display, and the user passes through the intelligent terminal according to the actual water intake M. Remotely control the water intake of the washing machine;

Preferably, when it is determined that the actual water inflow M is about to reach the preset water inflow amount M0 , a prompt message is sent to the user through the smart terminal/local end, and if the user does not continue to enter the water within the set time command, stop the water supply.
A washing machine, characterized in that the water inflow control method of the washing machine according to any one of the above claims 1-9 is adopted.