CN114427156A - Water inlet control method of washing machine and washing machine - Google Patents

Water inlet control method of washing machine and washing machine Download PDF

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Publication number
CN114427156A
CN114427156A CN202011182877.9A CN202011182877A CN114427156A CN 114427156 A CN114427156 A CN 114427156A CN 202011182877 A CN202011182877 A CN 202011182877A CN 114427156 A CN114427156 A CN 114427156A
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China
Prior art keywords
washing machine
water
water inflow
clothes
inner cylinder
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Pending
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CN202011182877.9A
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Chinese (zh)
Inventor
赵志强
许升
吕佩师
于明亮
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Qingdao Haier Drum Washing Machine Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Drum Washing Machine Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Drum Washing Machine Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Drum Washing Machine Co Ltd
Priority to CN202011182877.9A priority Critical patent/CN114427156A/en
Priority to PCT/CN2021/120696 priority patent/WO2022089112A1/en
Publication of CN114427156A publication Critical patent/CN114427156A/en
Pending legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/14—Supply, recirculation or draining of washing liquid
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58—Indications or alarms to the control system or to the user

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The invention belongs to the technical field of clothes treatment equipment, and discloses a water inlet control method of a washing machine and the washing machine, wherein the washing machine comprises an inner barrel capable of independently containing washing water when clothes are washed, and the control method comprises the following steps: obtaining the weight M of the clothes to be washed1Water is fed into the inner cylinder; controlling the rotation of the inner cylinder, obtaining a first working parameter of the motor of the washing machine when the inner cylinder rotates to a set working condition, and calculating the total weight M of the clothes and the water in the inner cylinder according to the first working parameter2(ii) a Calculating to obtain the actual water inflow M ═ M in the inner cylinder2‑M1When it is judgedThe actual water inflow M into the inner cylinder reaches the preset water inflow M0When the water is not supplied, the water supply is stopped. The invention can obtain the water inflow of the washing machine by setting the working parameters of the motor under the working condition without detecting the water inflow of the washing machine by the water amount detection device, thereby controlling the water inflow condition of the washing machine.

Description

Water inlet control method of washing machine and washing machine
Technical Field
The invention belongs to the technical field of clothes treatment equipment, and particularly relates to a water inlet control method of a washing machine and the washing machine.
Background
The washing machine is one of household appliances which are commonly used in daily life. The washing machine brings convenience to the life of people. In the prior art, an outer barrel contains water, an inner barrel rotates to wash, holes are formed in the wall of the inner barrel and used for feeding washing water into the inner barrel or dewatering clothes in the inner barrel, the washing water flows between the inner barrel and the outer barrel for a long time, so that dirt and scale can be accumulated between interlayers of the inner barrel and the outer barrel, a large amount of bacteria can be propagated, secondary pollution is caused to the clothes, the health of consumers is seriously threatened, and useless water waste is caused by filling water between the interlayers between the inner barrel and the outer barrel, so that people design a non-porous inner barrel washing machine.
However, since the washing machine with a nonporous inner cylinder has no water inlet in the outer cylinder and the inner cylinder is a rotating cylinder, the conventional method of detecting the water inlet amount of the inner cylinder by using the air chamber of the outer cylinder and the water level sensor cannot be used in the washing machine with a nonporous inner cylinder.
Chinese patent with application number CN201811237071.8 discloses a drum washing machine and a control method thereof, the drum washing machine comprises an inner drum and a water inlet pipeline, the inner drum is a non-porous inner drum, and holds washing water when washing clothes, and the drum washing machine also comprises a water measuring device for measuring water inflow, the water inlet pipeline is communicated with the water measuring device, and the water measuring device is communicated with the inner drum. The water measuring device comprises 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 comprises an air chamber and a sensor unit, and the air chamber is communicated with the water measuring tank; or the water level detection device comprises a plurality of water level detection probes arranged in the water measuring tank along the depth direction of the water measuring tank.
The drum type washing machine that the above application discloses carries out the ration volume through water level detection device in the advanced water level detection device that enters into before intaking to the inner tube and gets through setting up water measuring device, and then controls washing machine's inflow, needs additionally to add water measuring device and water level detection device isotructure for washing machine's structure is more complicated, and the cost is higher, and control method is comparatively loaded down with trivial details, difficult realization.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a water inlet control method which is simpler in control method, lower in cost and capable of obtaining the water inlet quantity of a washing machine without a water quantity detection device.
In order to solve the technical problems, the invention adopts the technical scheme that:
a water inlet control method of a washing machine including an inner tub independently containing washing water when washing laundry, the control method comprising the steps of:
obtaining the weight M of the clothes to be washed1Water is fed into the inner cylinder;
controlling the rotation of the inner cylinder, obtaining a first working parameter of the motor of the washing machine when the inner cylinder rotates to a set working condition, and calculating the total weight M of the clothes and the water in the inner cylinder according to the first working parameter2；
Calculating to obtain the actual water inflow M ═ M in the inner cylinder2-M1When the actual water inflow M in the inner cylinder reaches the preset water inflow M0When the water is not supplied, the water supply is stopped.
Further, after the clothes are put in the inner drum and before the washing machine starts to feed water, the inner drum is controlled to rotate, a second working parameter of the motor of the washing machine when the inner drum rotates to a set working condition is obtained, and the weight M of the clothes in the inner drum is calculated according to the second working parameter1。
Further, the first/second operating parameter is a first/second operating current of a motor of the washing machine; or, the first/second operating parameter is the first/second operating power of the washing machine motor.
Furthermore, the set working conditions comprise n different set working conditions, and the numerical values of the corresponding first working parameters of the washing machine motor when the inner barrel rotates to different set working conditions are obtained;
respectively calculating the total weight M of the clothes and the water in the inner barrel according to the obtained different values of the first working parameter corresponding to the motor of the washing machine under different set working conditions21、M22、、、M2nAnd calculating the average total weight M of the clothes and water in the inner cylinder2＝(M21+M22+、、、M2n) N, wherein n is more than or equal to 2.
Further, the set working condition is that the inner cylinder rotates to a set rotating speed N0When the set rotating speed N is reached0＝60-100r//min；
Preferably, after the inner barrel starts to feed water, the inner barrel is controlled to be accelerated to the set rotating speed N step by step0。
Further, the weight M of the laundry is acquired1Then, the intermittent water feeding to the inner drum is controlled, the inner drum is controlled to rotate to a set working condition in the intermittent time, and the total weight M of the clothes and the water in the inner drum is calculated according to the working current parameter of the motor of the washing machine at the moment2。
Further, the preset water inflow M0The value of (A) is determined according to a data table stored in a server of the washing machine; or according to the obtained weight M of the clothes in the inner barrel1Calculating to obtain theoretical water inflow of the washing machine as preset water inflow M0。
Further detecting and calculating the actual water inflow M of the inner barrel at certain preset time intervals after water starts to enter; alternatively, the setting t after the start of water supply1After the time, detecting and calculating the actual water inflow M of the inner barrel at certain preset time intervals;
preferably, the actual water inflow M of the inner drum calculated each time is fed back to the control unit of the washing machine and displayed on the display screen of the washing machine.
The washing machine further comprises a communication unit, the communication unit is in communication connection with the intelligent terminal, the actual water inflow M of the inner barrel obtained by each calculation is fed back to the intelligent terminal to be displayed, and a user remotely controls the water inflow condition of the washing machine through the intelligent terminal according to the actual water inflow M;
preferably, the actual water inflow M is judged to be about to reach the preset water inflow M0And sending prompt information to the user through the intelligent terminal/the local terminal, and stopping water inflow if an instruction of the user for continuing water inflow is not received within set time.
The invention also provides a washing machine adopting the water inlet control method of the washing machine.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. The water inlet control method of the washing machine provided by the invention has the advantages that the water inlet quantity of the washing machine can be obtained without detecting the water inlet quantity of the washing machine through the water quantity detection device, the water inlet quantity of the washing machine can be obtained by obtaining the working parameters of the motor of the washing machine when the inner cylinder rotates to the set working condition, the water inlet condition of the washing machine is further controlled, the control method is simple, the cost is low, and the problem that the water inlet quantity of the washing machine with the non-porous inner cylinder is difficult to control is effectively solved.
2. According to the washing machine water inlet control method provided by the invention, before water is not fed into the washing machine, the weight of the clothes in the inner barrel is obtained by obtaining the working parameters of the washing machine motor when the inner barrel rotates to the set working condition, and the weight of the clothes is not required to be obtained by arranging a weight sensor, so that the structure of the washing machine is simplified, and the cost is further reduced. Meanwhile, the optimal water inflow is automatically matched and determined according to the weight information of the clothes, the automation degree is higher, and the washing effect of the washing machine is effectively improved.
3. According to the washing machine water inlet control method provided by the invention, the corresponding total weight of the clothes and the water is respectively calculated through the corresponding first working parameter values of the washing machine motor under different working conditions, so that the average weight of the clothes and the water in the inner barrel is obtained, the average value is taken as the current actual water inflow, the measurement result is more accurate and reasonable, and the water flow control accuracy is improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a schematic flow chart of a first method for controlling water inflow according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a second method for controlling water inflow according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a washing machine according to an embodiment of the present invention;
in the figure:
1. an inner barrel; 2. an outer cylinder; 3. a centrifugal valve; 4. a top deck plate; 5. a detergent addition cartridge; 7. sealing the cabin; 8. a machine door; 9. an inner cylinder door; 10. a water inlet pipeline; 11. a water inlet valve; 12. footing; 13. a motor; 14. an inner cylindrical shaft; 15. a hollow channel; 16. a housing; 17. and (5) lifting the ribs.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments 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 for illustrating the present invention and 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., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 to 2, the present embodiment provides a water inlet control method of a washing machine including an inner tub for independently containing washing water when washing laundry, the control method including the steps of:
obtaining the weight M of the clothes to be washed1Water is fed into the inner cylinder;
controlling the rotation of the inner cylinder, obtaining a first working parameter of the motor of the washing machine when the inner cylinder rotates to a set working condition, and calculating the total weight M of the clothes and the water in the inner cylinder according to the first working parameter2；
Calculating to obtain the actual water inflow M ═ M in the inner cylinder2-M1When the actual water inflow M in the inner cylinder reaches the preset water inflow M0When the water is not supplied, the water supply is stopped.
According to the washing machine water inlet control method provided by the embodiment, the water inlet amount of the washing machine does not need to be detected and obtained through the water amount detection device, the water inlet amount of the washing machine can be obtained by obtaining the first working parameter of the washing machine motor when the inner barrel rotates to the set working condition, the water inlet of the washing machine is further controlled, the control method is simple, the cost is low, and the problem that the water inlet amount of the washing machine with the non-porous inner barrel is difficult to detect is effectively solved.
Further, after the clothes are put in the inner drum and before the washing machine starts to feed water, the inner drum is controlled to rotate, a second working parameter of the motor of the washing machine when the inner drum rotates to a set working condition is obtained, and the weight M of the clothes in the inner drum is calculated according to the second working parameter1。
Before water is not fed into the washing machine, the weight of the clothes in the inner barrel is obtained by obtaining the second working parameter of the motor of the washing machine when the inner barrel rotates to the set working condition, the weight of the clothes is not required to be obtained by arranging a weight sensor, the structure of the washing machine is simplified, and the cost is further reduced.
The method for controlling water inflow of a washing machine provided by the embodiment can be applied to the water inflow control of a washing program or the water inflow control of a rinsing program.
Further, in this embodiment, the first operating parameter/the second operating parameter is a first operating current/a second operating current of a motor of the washing machine; or, the first/second operating parameter is the first/second operating power of the washing machine motor.
The washing machine water inlet control method provided by the implementation can calculate the total weight M of the clothes and water in the inner drum by using the detected working current or working power value of the motor of the washing machine under the set working condition and combining a theoretical formula2And a weight detection device does not need to be additionally arranged, so that the measurement method is simpler and the cost is lower.
Furthermore, the set working conditions comprise n different set working conditions, and the numerical values of the corresponding first working parameters of the washing machine motor when the inner barrel rotates to different set working conditions are obtained.
Respectively calculating the total weight M of the clothes and the water in the inner barrel according to the obtained different values of the first working parameter corresponding to the motor of the washing machine under different set working conditions21、M22、、、M2nAnd calculate the innerAverage total weight M of laundry and water in the drum2＝(M21+M22+、、、M2n) N, wherein n is more than or equal to 2.
In the above embodiment, the total weight of the corresponding clothes and water is respectively calculated by the corresponding first working parameter values of the motor of the washing machine under different working conditions, so that the average weight of the clothes and the water in the inner barrel is obtained, the average value is used as the current actual water inflow, the measurement result is more accurate and reasonable, and the accuracy of water quantity control is further improved.
Further, the set working condition is that the inner cylinder rotates to a set rotating speed N0When the set rotating speed N is reached060-100r// min. In this embodiment, the set condition is when the rotation speed of the inner cylinder reaches the set value, but the set condition is not limited to only the set rotation speed.
Preferably, after the inner barrel starts to feed water, the inner barrel is controlled to be accelerated to the set rotating speed N step by step0The rotating speed of the inner barrel is controlled to gradually rise to the set rotating speed, the shaking of water in the inner barrel can be relatively reduced, the precision of a measuring result is improved, and the phenomenon that the rotational inertia of washing water is large and the measuring precision is influenced due to the fact that the inner barrel is accelerated too fast is avoided.
Specifically, after the clothes are put in the inner drum and before the washing machine starts to feed water, the inner drum can be controlled to rotate to a set rotating speed N0Detecting the current second working current/second working power of the motor of the washing machine, and calculating the weight M of the clothes in the inner drum according to the current second working current/second working power of the motor of the washing machine1。
After the weight of the clothes in the inner drum is obtained, the water is controlled to enter the inner drum, and when the inner drum rotates to the set rotating speed N again0Detecting the current first working current/first working power of the motor of the washing machine, and calculating the total weight M of the clothes and the water in the inner barrel according to the current first working current/first working power of the motor of the washing machine2。
Preferably, the set working conditions include two working conditions, and the first set working condition is to control the rotating speed of the inner barrel to reach the set rotating speed N0The second setting being for controlling the inner cylinderThe rotating speed reaches the set rotating speed N1The set rotation speed N0Less than a set rotation speed N1。
Specifically, when the preset detection time is reached, the rotating speed of the inner barrel is firstly controlled to be increased to a set rotating speed N0Detecting the first working current/power of the motor of the washing machine, and calculating the weight M of the water and clothes in the inner drum21Then controlling the rotation speed of the inner cylinder to increase to the set rotation speed N1Detecting the first working current/power of the motor of the washing machine, and calculating the weight M of the water and clothes in the inner drum22And according to M21And M22Calculating the average total weight M of the clothes and water in the inner cylinder2＝(M21+M22)/2。
In the above embodiment, the average value of the weight of the clothes and water in the inner drum is used as the actual water inflow when the inner drum rotates to different rotation speeds, and the water inflow M is obtained by using the average value2The accuracy of measurement is improved, and the measurement error is reduced.
Further, the weight M of the laundry is acquired1Then, the intermittent water feeding to the inner drum is controlled, the inner drum is controlled to rotate to a set working condition in the intermittent time, and the total weight M of the clothes and the water in the inner drum is calculated according to the working current parameter of the motor of the washing machine at the moment2。
Specifically, controlling the inner cylinder per water inlet T1Pause for time T2Time, water is fed into the inner cylinder in an intermittent water feeding mode, T1＞T2The control method can ensure normal water inlet of the washing machine and does not influence the detection of the water inlet amount.
Further, the preset water inflow M0The value of (A) can be determined by matching according to a data table stored in a server of the washing machine; or, in another more preferable scheme, according to the acquired weight M of the inner drum clothes1Calculating to obtain theoretical water inflow of the washing machine as preset water inflow M0。
In the scheme, the optimal preset water inflow is automatically matched and determined according to the weight information of the clothes, the automation degree 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 barrel is detected and calculated every certain preset time T3, and the preset T is3The time can be according to presetting inflow M0The value of (2) is determined, and the water inflow M is preset0The smaller the value of (A), the preset T of the interval3The time can be shortened correspondingly, the larger the value of the preset water inflow M0, the more the interval preset T3The time may increase accordingly.
Alternatively, in another embodiment, the setting t after the start of water intake is set1After the time, the actual water inflow M of the inner barrel is detected and calculated once every certain preset T3 time, because the water inflow M does not reach or approach the preset water inflow M immediately in the initial stage of starting water inflow0Thus at t at the beginning of water intake1The detection is started after the time, so that the trouble caused by unnecessary detection in the early stage can be saved, the energy is saved, and the control steps are simplified.
Alternatively, in another embodiment, the setting t after the start of water intake is set1After a time, every interval is preset with T3The actual water inflow M of the inner cylinder is calculated once through time detection, and the actual water inflow M reaches a second preset value M after the actual water inflow M is judged0At' time, wherein M0ˊ＜M0，M0The value of' is close to M0Controlling a preset T per interval4Calculating the actual water inflow M of the inner cylinder at one time by time detection, wherein T4＜T3。
By adopting the control method, the interval detection time T is controlled at the early stage of water inflow3Interval detection duration T longer than later period4The detection times are reduced, the measurement cost and the time cost are saved, and meanwhile, the water inflow M reaches a second preset value M0During' time, shortened the cycle of measuring, avoided appearing the inflow and surpassing preset inflow M0The phenomenon of (2) occurs.
Preferably, the actual water inflow M of the inner drum calculated each time is fed back to the control unit of the washing machine and displayed on the display screen of the washing machine. Through with actual inflow M, show on washing machine's display screen, the user of being convenient for knows current inflow directly perceivedly, and user's use experience is better.
Furthermore, the washing machine further comprises a communication unit, the communication unit is in communication connection with the intelligent terminal, the actual water inflow M of the inner barrel obtained through calculation each time is fed back to the intelligent terminal to be displayed, and a user can remotely control the water inflow condition of the washing machine according to the actual water inflow M through the intelligent terminal.
Preferably, the actual water inflow M is judged to be about to reach the preset water inflow M0And sending prompt information to the user through the intelligent terminal/the local terminal, and stopping water inflow if an instruction of the user for continuing water inflow is not received within set time.
Through adopting intelligent terminal remote control washing machine's intaking, promoted washing machine's intelligent degree, and will reach preset inflow M at inflow M0And sending prompt information to the user, and the user can select whether to continue water inflow.
For example, if the laundry is made of a material with good water absorption, the amount of washing water needed may be larger than that of other laundry with the same weight, and therefore, the water inflow M is about to reach the predetermined water inflow M0In time, the user can selectively prolong the water inlet time through the intelligent terminal or the local machine end so as to ensure that enough washing water is available and ensure the washing effect.
The washing machine water inlet control method provided by the embodiment mainly comprises the following steps:
s1: controlling the inner cylinder to rotate to a set rotating speed N0Detecting a second working parameter of the motor of the washing machine at the moment, and calculating to obtain the weight M of the clothes in the inner drum1；
S2: according to the obtained clothes weight M1Calculating the theoretical water inflow M of the inner cylinder by a logic formula0；
S3: controlling the inner cylinder to rotate to a set rotating speed N0Detecting the second of the washing machine motor at this timeWorking parameters are calculated, and the weight M of the clothes and water in the inner drum is obtained2；
S4: calculating the actual water inflow M of the inner cylinder as M2-M1；
S5: when the water mass M of the inner cylinder is calculated to be M2-M1To reach M0Completing water inflow;
s6: a washing/rinsing step is performed.
Example two
The embodiment provides a washing machine adopting the water inlet control method of the upper washing machine on the basis of the first embodiment.
As shown in fig. 3, the washing machine provided by the embodiment is a drum washing machine with a non-porous inner drum front opening structure, and has a simple structure, washing/rinsing water does not need to be filled between the inner drum 1 and the outer drum 2, so that the washing water consumption of the washing machine is greatly reduced, the possibility of dirt adhesion between the inner drum 1 and the outer drum 2 is avoided, the user health and user experience are greatly improved, and water resources are greatly saved.
The drum washing machine of the present embodiment has a housing 16, and the housing 16 includes: a top deck 4, a front panel, a back panel and a bottom panel. The bottom plate is mounted and fixed with feet 12 for supporting the whole washing machine. The outer shell 16 is internally provided with an outer cylinder 2, the inner cylinder 1 is coaxially arranged in the outer cylinder 2, the outer cylinder 2 is mainly used for collecting the drainage of the inner cylinder 1 and the drainage of the high-speed centrifugal dehydration of the inner cylinder 1, and the outer shell 16 is provided with an openable/closable machine door 8.
Preferably, the inner drum 1 is provided with lifting ribs 17 which are continuously lifted and dropped to beat the clothes so as to clean the clothes. The bottom of the outer cylinder 2 is provided with a central mounting hole for mounting and fixing a bearing, and an inner cylinder shaft 14 which is tightly connected with the inner cylinder 1 penetrates through the bearing and is connected with a motor 13 of the washing machine. An openable/closable inner cylinder door 9 is installed on a front cylinder opening of the inner cylinder 1, and the inner cylinder 1 is of a sealed cabin 7 structure.
Further, the washing machine motor 13 is in transmission connection with the inner barrel 1 through the inner barrel shaft 14 to drive the inner barrel 1 to rotate, a hollow channel 15 communicated with the inside of the inner barrel 1 is arranged in the inner barrel shaft 14, a water inlet pipeline 10 of the washing machine is communicated with the hollow channel 15 of the inner barrel shaft 14 to feed water to the inner barrel 1, and the water inlet pipeline 10 is in dynamic sealing connection with the hollow channel 15.
One end of the water inlet pipeline 10 is communicated with the hollow channel 15, the other end of the water inlet pipeline is communicated with the detergent adding box 5, the detergent adding box 5 is provided with an inlet communicated with a water inlet valve 11 of the washing machine and an outlet communicated with the water inlet pipeline 10, when water is fed in for washing or rinsing, the water inlet valve 11 is controlled to be opened, the fed water flows through the detergent adding box 5, is mixed with the detergent in the detergent adding box 5 and then enters the water inlet pipeline 10, and enters the inner barrel 1 through the hollow channel 15 in the inner barrel shaft 14.
Furthermore, a drain hole is formed in the peripheral wall of the inner cylinder 1, the lifting rib 17 is installed on the inner wall of the inner cylinder 1 corresponding to the drain hole, the lifting rib 17 is provided with a lifting shell, the centrifugal valve 3 is installed in the lifting shell, the centrifugal valve 3 is in a normally closed state, and when the rotating speed of the inner cylinder 1 reaches a set value, the centrifugal valve 3 is acted by centrifugal force to open the drain hole for draining water.
Preferably, the inner cylinder 1 of the washing machine provided by this embodiment has a taper, the inner diameter of the middle position is the largest, the front end and the rear end gradually converge towards the middle position in an inclined manner, the drain hole is formed at the position where the taper of the cylinder wall of the inner cylinder 1 is the largest, when the inner cylinder 1 rotates, centrifugal water on the tapered surface of the inner cylinder 1 moves along the taper towards the centrifugal valve 3 under the action of centrifugal force, and converges, so that drainage is facilitated, drainage efficiency is improved, and efficient dehydration performance and centrifugal drainage performance of the imperforate inner cylinder are effectively realized.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A water inlet control method of a washing machine, characterized in that the washing machine comprises an inner barrel which can independently contain washing water when washing clothes, the control method comprises the following steps:
obtaining the weight M of the clothes to be washed1Water is fed into the inner cylinder;
controlling the rotation of the inner cylinder, obtaining a first working parameter of the motor of the washing machine when the inner cylinder rotates to a set working condition, and calculating the total weight M of the clothes and the water in the inner cylinder according to the first working parameter2；
Calculating to obtain the actual water inflow M ═ M in the inner cylinder2-M1When the actual water inflow M in the inner cylinder reaches the preset water inflow M0When the water is not supplied, the water supply is stopped.
2. The water inlet control method of a washing machine as claimed in claim 1, wherein:
after the clothes are put in the inner drum and before the washing machine starts to feed water, the inner drum is controlled to rotate, a second working parameter of the washing machine motor when the inner drum rotates to a set working condition is obtained, and the weight M of the clothes in the inner drum is calculated according to the second working parameter1。
3. The water inlet control method of a washing machine as claimed in claim 2, wherein:
the first working parameter/the second working parameter is a first working current/a second working current of a motor of the washing machine; or, the first/second operating parameter is the first/second operating power of the washing machine motor.
4. The water inlet control method of a washing machine as claimed in claim 1, wherein:
the set working conditions comprise n different set working conditions, and the numerical values of corresponding first working parameters of the washing machine motor when the inner barrel rotates to different set working conditions are obtained;
according to the obtained different set working conditions, the motor of the washing machineRespectively calculating the total weight M of the clothes and water in the inner barrel according to different values of the corresponding first working parameters21、M22、、、M2nAnd calculating the average total weight M of the clothes and water in the inner cylinder2＝(M21+M22+、、、M2n) N, wherein n is more than or equal to 2.
5. The water inlet control method of a washing machine according to any one of claims 1-4, wherein: the set working condition is that the inner cylinder rotates to a set rotating speed N0When the set rotating speed N is reached0＝60-100r//min；
Preferably, after the inner barrel starts to feed water, the inner barrel is controlled to be accelerated to the set rotating speed N step by step0。
6. The water inlet control method of a washing machine according to any one of claims 1-4, wherein:
upon acquisition of weight M of laundry1Then, the intermittent water feeding to the inner drum is controlled, the inner drum is controlled to rotate to a set working condition in the intermittent time, and the total weight M of the clothes and the water in the inner drum is calculated according to the working current parameter of the motor of the washing machine at the moment2。
7. The water inlet control method of a washing machine according to any one of claims 1-4, wherein:
the preset water inflow M0The value of (A) is determined according to a data table stored in a server of the washing machine; or according to the obtained weight M of the clothes in the inner barrel1Calculating to obtain theoretical water inflow of the washing machine as preset water inflow M0。
8. The water inlet control method of a washing machine according to any one of claims 1-4, wherein:
after water inflow is started, detecting and calculating the actual water inflow M of the inner barrel at certain preset time intervals; alternatively, the setting t after the start of water supply1After the time, detecting and calculating one at certain preset time intervalsActual water inflow M of the secondary inner cylinder;
preferably, the actual water inflow M of the inner drum calculated each time is fed back to the control unit of the washing machine and displayed on the display screen of the washing machine.
9. The water inlet control method of a washing machine according to any one of claims 1-4, wherein:
the washing machine further comprises a communication unit, the communication unit is in communication connection with the intelligent terminal, the actual water inflow M of the inner barrel obtained by each calculation is fed back to the intelligent terminal to be displayed, and a user remotely controls the water inflow condition of the washing machine through the intelligent terminal according to the actual water inflow M;
preferably, the actual water inflow M is judged to be about to reach the preset water inflow M0And sending prompt information to the user through the intelligent terminal/the local terminal, and stopping water inflow if an instruction of the user for continuing water inflow is not received within set time.
10. A washing machine characterized by adopting the water inlet control method of the washing machine as claimed in any one of claims 1 to 9.
CN202011182877.9A 2020-10-29 2020-10-29 Water inlet control method of washing machine and washing machine Pending CN114427156A (en)

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CN110438724B (en) * 2014-11-27 2021-06-15 重庆海尔滚筒洗衣机有限公司 Water-saving drum washing machine
CN111088636B (en) * 2018-10-23 2023-02-17 青岛海尔洗涤电器有限公司 Drum washing machine
CN109338657B (en) * 2018-10-29 2022-09-09 青岛海尔洗衣机有限公司 Control method for washing equipment
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