CN114457547A - Control method of washing machine and washing machine - Google Patents

Control method of washing machine and washing machine Download PDF

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Publication number
CN114457547A
CN114457547A CN202011246869.6A CN202011246869A CN114457547A CN 114457547 A CN114457547 A CN 114457547A CN 202011246869 A CN202011246869 A CN 202011246869A CN 114457547 A CN114457547 A CN 114457547A
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CN
China
Prior art keywords
washing machine
load
eccentric
water
inner cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011246869.6A
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Chinese (zh)
Inventor
滕茂林
许梁
马世新
李昌龙
聂静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Drum Washing Machine Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Drum Washing Machine Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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 CN202011246869.6A priority Critical patent/CN114457547A/en
Publication of CN114457547A publication Critical patent/CN114457547A/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
    • 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
    • D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
    • 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
    • D06F2103/26—Imbalance; Noise level
    • 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
    • D06F2103/70—Number of operational cycles
    • 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
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • 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 washing machines, and discloses a control method of a washing machine and the washing machine, wherein the washing machine comprises an inner barrel, and an eccentric part capable of absorbing water and increasing weight is arranged on the side wall of the inner barrel; the washing machine is provided with a small-load cleaning program, and when the small-load cleaning program is executed, the washing machine controls the inner cylinder to rotate until the load in the cylinder and the eccentric part are in an evenly distributed state and then starts to dewater. The eccentric part is arranged on the side wall of the inner barrel of the washing machine, the eccentric part can absorb water and increase weight in the washing/rinsing process, and the eccentric part and the load in the barrel are in a uniform distribution state by rotating the inner barrel and then start to dewater, so that the eccentric phenomenon is reduced by balancing the eccentric part and the load, and the condition that the dewatering process is influenced by eccentricity of the inner barrel due to the fact that the small part load is difficult to be uniformly distributed in the barrel is avoided.

Description

Control method of washing machine and washing machine
Technical Field
The invention belongs to the technical field of washing machines, and particularly relates to a control method of a washing machine and the washing machine.
Background
When the existing washing machine washes small loads, the load in the drum is difficult to form a uniform distribution state in the drum after the water drainage is finished. Therefore, in the dehydration stage, the load in the drum tends to stick to one side of the drum wall under the action of inertia, so that the eccentricity of the inner drum is large, and the phenomenon that the outer drum impacts a box body or the whole washing machine is displaced is easily caused in the dehydration process of high-speed rotation of the inner drum. For the washing machine with the eccentric protection program, the rotation speed of the inner drum cannot be increased to the set dehydration rotation speed all the time, and even the washing machine does not run the dehydration program and frequently gives an alarm, so that the problem that small loads cannot be dried after washing is caused.
In the prior art, under the condition that the eccentricity is generated in the dehydration stage, the load can be shaken and dispersed by rotating the inner cylinder, or the load can be redistributed by a small amount of water inflow, so that the load can be adjusted to reach an evenly distributed state. However, when the articles to be washed are small loads, the volume of the load is limited by the difference between the volume of the inner cylinder and the volume of the inner cylinder, and the uniform distribution state cannot be achieved even after multiple adjustments are performed.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a control method of a washing machine and the washing machine.
In order to solve the technical problems, the invention adopts the technical scheme that:
a control method of a washing machine comprises an inner barrel, wherein an eccentric part which can absorb water and increase weight is arranged on the side wall of the inner barrel;
the washing machine is provided with a small-load cleaning program, and when the small-load cleaning program is executed, the washing machine controls the inner cylinder to rotate until the load in the cylinder and the eccentric part are in an evenly distributed state and then starts to dewater.
Further, in the process of controlling the rotation of the inner barrel of the washing machine, the washing machine detects the eccentric value of the inner barrel in real time, and when the detected eccentric value is smaller than a preset eccentric value, the load in the barrel and the eccentric part are determined to be in an evenly distributed state;
preferably, in the process that the washing machine controls the inner drum to rotate, the washing machine detects the torque of the motor for driving the inner drum in real time, and calculates the eccentric value of the inner drum according to the detected torque.
Further, the method comprises the following steps:
1) the washing machine executes a small-load washing program and performs a water discharge operation;
2) controlling the inner barrel to set the rotation speed V0Rotating;
3) the washing machine detects the eccentricity value of the inner barrel and judges whether the detected eccentricity value is smaller than a preset eccentricity value or not;
4) if the judgment result is negative, returning to the step 2), and if the judgment result is positive, controlling the inner cylinder to rotate in an accelerated manner;
5) the inner cylinder is accelerated to the set dehydration rotating speed VThreshing deviceContinuously rotating for a certain time;
6) stopping the rotation of the inner cylinder, and finishing the dehydration.
Further, if the duration of the continuous rotation of the inner cylinder reaches the preset duration T0When the condition that the load in the cylinder and the eccentric part are in the uniform distribution state is not detected, executing a shaking and dispersing process that the inner cylinder rotates at a certain rotation-stop ratio;
the shaking and scattering process lasts for a certain time, after the shaking and scattering process is finished, the inner cylinder is controlled to rotate again, and the dewatering is started after the load and the eccentric part in the cylinder are in a uniformly distributed state;
preferably, if the inner barrel continues to rotate and is presetLong T0The method comprises the steps of detecting whether the load in the cylinder and the eccentric part are in an evenly distributed state, and judging whether the execution times of the shaking-up process reach a first preset time N1；
If the judgment result is negative, executing a shaking process; if the judgment result is yes, the washing machine is controlled to pause and prompt information is sent.
Further, if the duration of the continuous rotation of the inner cylinder reaches the preset duration T0When the uniform distribution state of the load and the eccentric part in the cylinder is not detected, the inner cylinder is controlled to rotate reversely, and dehydration is started after the uniform distribution state of the load and the eccentric part in the cylinder is detected;
preferably, if the inner cylinder rotates continuously in one direction and within a preset time length T0If the inner cylinder load and the eccentric part are not detected to be in the uniform distribution state, judging whether the number of times of changing the rotation direction of the inner cylinder reaches a second preset number of times N2；
If the judgment result is negative, controlling the inner cylinder to rotate reversely; if the judgment result is yes, the washing machine is controlled to pause and prompt information is sent.
Further, the method also comprises the step of acquiring the weight of the load in the drum, and when the weight is lower than the preset weight, controlling the washing machine to execute a small-load washing program.
Further, after the washing machine is started, if a signal that a user selects a small-load cleaning program is received, the inner cylinder is controlled to rotate in a water drainage stage or after water drainage is finished, and dehydration is started until the load and the eccentric part in the cylinder are in an evenly distributed state.
Another object of the present invention is to provide a washing machine for implementing the control method of the above washing machine, which includes an inner tub and an eccentric member fixedly disposed on a sidewall of the inner tub, the eccentric member increasing its own weight by absorbing water.
Furthermore, a plurality of water-stirring blades are arranged on the inner side of the side wall of the inner cylinder, one water-stirring blade in the plurality of water-stirring blades is an eccentric water-stirring blade capable of absorbing water and increasing weight, and the eccentric part is the eccentric water-stirring blade.
Furthermore, the eccentric water stirring blade comprises a shell and a water absorbing piece arranged inside the shell, and the water absorbing piece can absorb water to increase the weight of the water absorbing piece;
or the eccentric water-repellent blade is made of a material which can absorb water and increase weight and can keep the hardness of the eccentric water-repellent blade after absorbing water.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The eccentric part is arranged on the side wall of the inner barrel of the washing machine, the eccentric part can absorb water and increase weight in the washing/rinsing process, the washing machine starts to dehydrate after the inner barrel and the eccentric part are in a uniformly distributed state by rotating the inner barrel when executing a small-load washing program, the eccentric part can offset the eccentricity generated by the inner barrel, and the dehydrating is synchronous with the load in the dehydrating process, so that the balance state of the inner barrel is kept, and the dehydrating process is ensured to be carried out smoothly.
When the inner drum of the washing machine continuously rotates for a certain time but the load and the eccentric part in the drum are not in the uniformly distributed state all the time, the relative position of the load and the eccentric part in the drum can be adjusted by executing a shaking process or controlling the inner drum to rotate reversely, then whether the load and the eccentric part in the drum are in the uniformly distributed state is detected again to determine whether to start dewatering, and when the load and the eccentric part in the drum are not in the uniformly distributed state after multiple adjustments, the program operation is suspended and a user is reminded, so that the automation degree is high, and the operation of the user on the washing machine is reduced.
The washing machine can obtain the weight of the load in the drum, judge whether to execute a small-load washing program according to the weight, and is convenient for a user to use.
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 flowchart illustrating a method for controlling a washing machine according to an embodiment of the present invention;
FIG. 2 is a flowchart of a control method of a washing machine according to a second embodiment of the present invention;
FIG. 3 is a flowchart of a control method of a washing machine according to a third embodiment of the present invention;
fig. 4 is a schematic structural view of a washing machine according to a fourth embodiment of the present invention.
In the figure: 1. a box body; 2. an outer cylinder; 3. an inner barrel; 4. an eccentric water-repellent blade.
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 "front", "back", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "mounted" is to be understood broadly, for example, as being fixedly attached, detachably attached, or integrally attached; 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, the present embodiment provides a control method for a washing machine, where the washing machine includes an inner barrel, and a water-absorbing weight-increasing eccentric member is disposed on a sidewall of the inner barrel. The washing machine is provided with a small-load cleaning program, and when the small-load cleaning program is executed, the washing machine controls the inner cylinder to rotate until the load in the cylinder and the eccentric part are in an evenly distributed state and then starts to dewater.
In the above-described aspect, when the load to be washed is a small load or a single load, the washing machine performs a small load washing process. The eccentric part on the side wall of the inner cylinder is fixed in position, and can absorb washing/rinsing water in the washing/rinsing process, so that the weight of the inner cylinder is increased. Before the inner barrel rotates at a high speed in the dehydration process, the washing machine controls the inner barrel to rotate so that the load in the barrel and the eccentric part are in a uniformly distributed state, and the eccentric part can offset the eccentricity generated by at least part of the load in the barrel, so that the inner barrel can be smoothly accelerated to a high rotating speed for dehydration.
In the dehydration process, the eccentric part synchronously dehydrates with the load under the high-speed rotation of the inner cylinder, so that the inner cylinder is always kept in a relatively balanced state, and the dehydration process is ensured to be smoothly carried out.
In this embodiment, the volume and the water absorption rate of the eccentric member are fixed, so that the weight of the eccentric member after absorbing water each time is stabilized within a certain range, and the offsetting effect of the eccentric member on eccentricity is ensured. When a large amount of loads are washed, the difference between the weight of the eccentric part and the total weight of the loads in the barrel is large, and after the large amount of loads in the barrel are in an evenly distributed state, the eccentric part cannot obviously influence the balance of the inner barrel.
In the further scheme of this embodiment, washing machine judges whether a section of thick bamboo interior load and eccentric component are in the equipartition state through detecting the eccentric value of inner tube.
Specifically, in the process of controlling the rotation of the inner barrel by the washing machine, the washing machine detects the eccentric value of the inner barrel in real time, and when the detected eccentric value is smaller than a preset eccentric value, the load and the eccentric part in the barrel are determined to be in an evenly distributed state.
Preferably, in the process that the washing machine controls the inner drum to rotate, the washing machine detects the torque of the motor for driving the inner drum in real time, and calculates the eccentric value of the inner drum according to the detected torque.
As shown in fig. 1, the control method of the washing machine according to the present embodiment specifically includes the following steps:
1) the washing machine executes a small-load washing program and performs a water discharge operation;
2) controlling the inner barrel to set the rotation speed V0Rotating;
3) the washing machine detects the eccentricity value of the inner cylinder and judges whether the detected eccentricity value is smaller than a preset eccentricity value or not;
4) if the judgment result is negative, returning to the step 2), and if the judgment result is positive, controlling the inner cylinder to rotate in an accelerated manner;
5) the inner cylinder is accelerated to the set dehydration rotating speed VThreshing deviceContinuously rotating for a certain time;
6) stopping the rotation of the inner cylinder, and finishing the dehydration.
In the above scheme, the washing machine opens the drainage pump to perform the drainage operation after the washing/rinsing is finished, and if the washing machine is performing the small-load washing program, the inner drum is controlled to set the rotation speed V at the end of the drainage stage or after the drainage is finished0And rotating at a low speed. The position of the load in the cylinder is changed in the process of low-speed rotation of the inner cylinder until the load and the eccentric part are uniformly distributed. Then controlling the inner cylinder to accelerate to the set dehydration rotating speed VThreshing deviceThe dewatering is carried out, the load in the cylinder and the eccentric part are synchronously dewatered in the inner cylinder rotating at high speed, the inner cylinder is always kept in a relatively balanced state, and the dewatering process is smoothly finished.
In a further aspect of this embodiment, the washing machine further includes a weight sensor, and the weight of the load in the drum can be obtained by the weight sensor. And controlling the washing machine to execute a small-load washing program when the weight of the load in the drum is lower than a preset weight.
The washing machine of the embodiment can automatically judge whether to execute a small-load washing program according to the weight of the load in the drum, has high automation degree and is convenient for a user to use.
In another aspect of this embodiment, the user may autonomously select whether to perform the small-load washing course by operating the washing machine. Specifically, after the washing machine is started, if a signal that a user selects a small-load cleaning program is received, the inner cylinder is controlled to rotate in a water drainage stage or after water drainage is finished, and dehydration is started until the load and the eccentric part in the cylinder are in an evenly distributed state.
In the embodiment, the washing machine is provided with the eccentric part capable of absorbing water and increasing weight on the side wall of the inner barrel, the eccentric part starts to dehydrate after the inner barrel load and the eccentric part are in an evenly distributed state by rotating the inner barrel, the eccentric part offsets the eccentricity generated by the inner barrel load to a certain extent, and simultaneously the eccentric part dehydrates synchronously with the inner barrel load in the dehydration process of the high-speed rotation of the inner barrel, so that the inner barrel always keeps a relatively balanced state in the whole dehydration process, and the dehydration process is ensured to be carried out smoothly. The scheme of this embodiment has avoided washing machine washing smallclothes load, because the circumstances that the unable dehydration that the equipartition caused in a section of thick bamboo is difficult to for the dehydration of smallclothes load spin-dries can accomplish smoothly.
Example two
As shown in FIG. 2, this embodiment is a further limitation of the first embodiment, in the process of controlling the rotation of the inner drum by the washing machine before the dehydration is started, if the duration of the continuous rotation of the inner drum reaches the preset duration T0When the load in the cylinder and the eccentric part are not detected to be in the uniform distribution state, namely in the preset time length T0And if the detected eccentricity value is not lower than the preset eccentricity value all the time, suspending the continuous rotation of the inner cylinder and executing the shaking and scattering process of rotating the inner cylinder at a certain rotation-stop ratio.
The shaking and scattering process lasts for a certain time, after the shaking and scattering process is finished, the inner cylinder is controlled to rotate again, and the dewatering is started after the load and the eccentric part in the cylinder are in an evenly distributed state.
When the inner load of the cylinder is adhered to the wall, the inner load of the cylinder is always positioned at a fixed position in the inner cylinder in the process of low-speed rotation of the inner cylinder and cannot be changed along with the rotation of the inner cylinder. If the load and the eccentric part are positioned at the same side of the inner cylinder, the load and the eccentric part in the cylinder cannot be uniformly distributed by controlling the rotation of the inner cylinder, and further, the dehydration cannot be started all the time.
In this embodiment, the washing machine presets a preset time period T0To cope with the above situation. When the inner cylinder rotates continuously but the load and the eccentric part in the cylinder cannot reach the uniform distribution state, the inner cylinder is executed to a certain degreeThe shaking process of rotation-stop ratio rotation. Through executing the shaking process, the adherent load is peeled off from the side wall of the inner cylinder, the inner cylinder is controlled to rotate continuously again, the position of the load in the inner cylinder in the cylinder is adjusted, the load and the eccentric part are in a uniform distribution state, and dehydration is started.
In a further aspect of this embodiment, if the inner barrel rotates continuously and within a predetermined time period T0The method comprises the steps of detecting whether the load in the cylinder and the eccentric part are in an evenly distributed state, and judging whether the execution times of the shaking-up process reach a first preset time N1. If the judgment result is negative, executing a shaking process; if the judgment result is yes, the washing machine is controlled to pause and prompt information is sent.
In the above scheme, after the washing machine executes the shaking process for multiple times, when the inner barrel cannot be rotated to enable the inner barrel load and the eccentric part to be in the uniform distribution state, the washing machine stops running, prompt information is sent to a user to remind the user to check, and the inner barrel load is manually distributed. By presetting a first preset number of times N1The condition that the washing machine continuously and circularly executes the shaking-up process when the load in the drum is attached to the wall too firmly or other faults occur to the washing machine is avoided.
As shown in fig. 2, the control method of the washing machine according to the present embodiment specifically includes the following steps:
1) controlling the inner barrel to set the rotation speed V0Rotating;
2) the washing machine detects the eccentricity value of the inner cylinder and judges whether the detected eccentricity value is smaller than a preset eccentricity value or not;
3) if the judgment result is yes, controlling the inner cylinder to accelerate to the set dehydration rotating speed VThreshing deviceDehydrating, and if the judgment result is negative, executing the step 4);
4) judging whether the duration of the continuous rotation of the inner cylinder reaches the preset duration T0If yes, executing step 5), if no, returning to step 1);
5) judging whether the execution times N of the shaking process is less than a first preset time N1If the judgment result is yes, executing the shaking process, returning to the step 1 after the shaking process is finished, if the judgment result is no,the washing machine is controlled to pause and send out prompt information.
In the embodiment, when the inner drum continuously rotates for a certain time but the load in the drum and the eccentric part are not uniformly distributed all the time, the shaking and dispersing process is automatically executed, so that the condition that the dewatering can not be started all the time due to the adherence of the load is avoided. The washing machine records the execution times of the shaking process, and after the shaking process is executed for multiple times, if the uniform distribution state can not be reached, the program operation is suspended and the user is reminded. The washing machine has high automation degree, reduces the operation of a user on the washing machine, and is convenient to use.
EXAMPLE III
As shown in fig. 3, this embodiment is a further limitation of the first embodiment, in the process of controlling the rotation of the inner drum by the washing machine before the dehydration is started, if the duration of the continuous rotation of the inner drum reaches the preset duration T0When the eccentric part is in the uniform distribution state, the load in the cylinder is not detected, namely the eccentric part is in the preset time length T0And if the detected eccentric value is not lower than the preset eccentric value all the time, controlling the inner cylinder to rotate reversely, and dehydrating after the load and the eccentric part in the cylinder are in a uniformly distributed state.
When the inner load of the cylinder is adhered to the wall, the inner load of the cylinder is always positioned at a fixed position in the inner cylinder in the process of low-speed rotation of the inner cylinder and cannot be changed along with the rotation of the inner cylinder. If the load and the eccentric part are positioned at the same side of the inner cylinder, the load and the eccentric part in the cylinder cannot be uniformly distributed by controlling the rotation of the inner cylinder, and further, the dehydration cannot be started all the time.
In this embodiment, the washing machine presets a preset time period T0To cope with the above situation. When the inner cylinder rotates continuously but the load and the eccentric part in the cylinder can not reach the uniform distribution state, the inner cylinder is controlled to rotate reversely. By changing the rotation direction of the inner cylinder, the adherent load can fall off from the side wall of the inner cylinder, so that the load and the eccentric part in the cylinder are uniformly distributed in the process of continuously rotating the inner cylinder, and dehydration is started.
In a further aspect of this embodiment, if the inner barrel rotates in one direction continuously and within a predetermined time period T0Without detecting the load in the drum and the eccentric member being inUniformly distributed state, judging whether the number of times of changing the rotation direction of the inner cylinder reaches a second preset number of times N2. If the judgment result is negative, controlling the inner cylinder to rotate reversely; if the judgment result is yes, the washing machine is controlled to pause and prompt information is sent.
In the above scheme, after the rotation direction of the inner barrel is changed for many times, when the load and the eccentric part in the barrel still cannot reach the uniform distribution state, the washing machine stops running, prompt information is sent to a user to remind the user to check, and the load in the barrel is manually distributed. By presetting a second preset number of times N2The condition that the rotation direction of the inner drum is continuously and circularly changed by the washing machine when the load in the drum is adhered to the wall too firmly or other faults occur to the washing machine is avoided.
As shown in fig. 3, the control method of the washing machine according to the present embodiment specifically includes the following steps:
1) controlling the inner barrel to set the rotation speed V0Rotating;
2) the washing machine detects the eccentricity value of the inner cylinder and judges whether the detected eccentricity value is smaller than a preset eccentricity value or not;
3) if the judgment result is yes, controlling the inner cylinder to accelerate to the set dehydration rotating speed VThreshing deviceDehydrating, and if the judgment result is negative, executing the step 4);
4) judging whether the duration of the one-way rotation of the inner cylinder reaches the preset duration T0If yes, executing step 5), if no, returning to step 1);
5) judging whether the number of times N' of changing the rotation direction of the inner cylinder is less than a second preset number of times N2If the judgment result is yes, controlling the inner drum to rotate reversely, returning to the step 1), if the judgment result is no, controlling the washing machine to pause, and sending out prompt information.
In the embodiment, when the inner drum of the washing machine continuously rotates for a certain time but the load in the drum and the eccentric part are not uniformly distributed all the time, the reverse rotation of the inner drum is automatically controlled, and the condition that the dewatering can not be started all the time due to the adherence of the load is avoided. The washing machine records the times of changing the rotation direction of the inner barrel, and after the rotation direction of the inner barrel is changed for many times, if the inner barrel cannot reach the uniform distribution state, the program operation is suspended and the user is reminded. The washing machine has high automation degree, reduces the operation of a user on the washing machine, and is convenient to use.
Example four
As shown in fig. 4, the present embodiment provides a washing machine for implementing the control method according to any one of the above embodiments.
The washing machine comprises a box body 1, an outer barrel 2 and an inner barrel 3 which are arranged in the box body 1, wherein the inner barrel 3 is rotatably arranged in the outer barrel 2. The side wall of the inner barrel 3 is provided with an eccentric part, and the weight of the eccentric part can be increased by water absorption. The eccentric part is arranged on the side wall of the inner cylinder 3, and the relative position of the eccentric part and the inner cylinder 3 is kept unchanged in the rotating process of the inner cylinder 3.
In the further scheme of this embodiment, a plurality of water-repelling leaves are arranged on the inner side of the side wall of the inner cylinder 3, one of the water-repelling leaves is an eccentric water-repelling leaf 4 which can absorb water and increase weight, and the eccentric part is the eccentric water-repelling leaf 4.
As shown in fig. 4, in the present embodiment, the eccentric water-repellent blades 4 are provided in the middle of the side wall of the inner cylinder 3. The eccentric paddles 4 may also be located at the front or rear of the side walls.
In a further scheme of the embodiment, the eccentric water stirring blade 4 comprises a shell and a water absorbing part arranged inside the shell, and the water absorbing part can absorb water and increase the weight of the water absorbing part.
Specifically, the housing is mounted on the side wall of the inner cylinder 3, and the housing is provided with water permeable holes through which washing/rinsing water can enter the housing to contact the water absorbing member.
Or, the housing has an opening facing the sidewall of the inner drum 3, and the housing is installed on the sidewall of the inner drum 3, and the opening covers the dewatering holes on the sidewall. The washing/rinsing water between the inner tub 3 and the outer tub 2 enters the inside of the housing through the dehydration holes to contact the water absorbing member.
The water absorbing member is a water absorbable material having a specific water absorption rate, such as a water absorbable sponge.
In another scheme of the embodiment, the eccentric water-repellent blade 4 is made of a material which can absorb water to increase weight and can keep the hardness of the eccentric water-repellent blade after absorbing water.
In this embodiment, the washing machine is provided with the eccentric member on the side wall of the inner drum 3, and the eccentric member can increase the weight by absorbing water, so that the eccentric member and the load in the drum form an evenly distributed state in the dehydration process of washing small loads, offset the eccentricity generated by the load in the drum, and ensure the smooth operation of the dehydration process. One of the water-repellent blades in the inner barrel 3 is structurally transformed to form the eccentric water-repellent blade 4 as an eccentric part, so that an additional structure is not required to be added in the inner barrel 3, and the influence on the conventional washing of the washing machine is avoided.
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 control method of a washing machine comprises an inner barrel, and is characterized in that an eccentric part which can absorb water and increase weight is arranged on the side wall of the inner barrel;
the washing machine is provided with a small-load cleaning program, and when the small-load cleaning program is executed, the washing machine controls the inner cylinder to rotate until the load in the cylinder and the eccentric part are in an evenly distributed state and then starts to dewater.
2. The control method of the washing machine according to claim 1, wherein the washing machine detects an eccentric value of the inner tub in real time during the rotation of the inner tub of the washing machine, and determines that the load and the eccentric member in the tub are in a uniformly distributed state when the detected eccentric value is less than a preset eccentric value;
preferably, in the process that the washing machine controls the inner drum to rotate, the washing machine detects the torque of the motor for driving the inner drum in real time, and calculates the eccentric value of the inner drum according to the detected torque.
3. The control method of a washing machine according to claim 2, comprising the steps of:
1) the washing machine executes a small-load washing program and performs a water discharge operation;
2) controlling the inner barrel to set the rotation speed V0Rotating;
3) the washing machine detects the eccentricity value of the inner cylinder and judges whether the detected eccentricity value is smaller than a preset eccentricity value or not;
4) if the judgment result is negative, returning to the step 2), and if the judgment result is positive, controlling the inner cylinder to rotate in an accelerated manner;
5) the inner cylinder is accelerated to the set dehydration rotating speed VThreshing deviceContinuously rotating for a certain time;
6) stopping the rotation of the inner cylinder, and finishing the dehydration.
4. The control method of a washing machine according to any one of claims 1 to 3, wherein the duration of the continuous rotation of the inner tub reaches a preset duration T0When the condition that the load in the cylinder and the eccentric part are in the uniform distribution state is not detected, executing a shaking and dispersing process that the inner cylinder rotates at a certain rotation-stop ratio;
the shaking and scattering process lasts for a certain time, after the shaking and scattering process is finished, the inner cylinder is controlled to rotate again, and the dewatering is started after the load and the eccentric part in the cylinder are in a uniformly distributed state;
preferably, if the inner cylinder rotates continuously and within a preset time period T0The method comprises the steps of detecting whether the load in the cylinder and the eccentric part are in an evenly distributed state, and judging whether the execution times of the shaking-up process reach a first preset time N1；
If the judgment result is negative, executing a shaking process; if the judgment result is yes, the washing machine is controlled to pause and prompt information is sent.
5. The control method of a washing machine according to any one of claims 1 to 3,if the duration of the continuous rotation of the inner cylinder reaches the preset duration T0When the uniform distribution state of the load and the eccentric part in the cylinder is not detected, the inner cylinder is controlled to rotate reversely, and dehydration is started after the uniform distribution state of the load and the eccentric part in the cylinder is detected;
preferably, if the inner cylinder rotates continuously in one direction and within a preset time length T0If the inner cylinder load and the eccentric part are not detected to be in the uniform distribution state, judging whether the number of times of changing the rotation direction of the inner cylinder reaches a second preset number of times N2；
If the judgment result is negative, controlling the inner cylinder to rotate reversely; if the judgment result is yes, the washing machine is controlled to pause and prompt information is sent.
6. The control method of a washing machine according to any one of claims 1 to 5, further comprising obtaining a weight of a load in the tub, and controlling the washing machine to perform a small-load washing course when the weight is lower than a preset weight.
7. The control method of a washing machine according to any one of claims 1 to 5, wherein after the washing machine is started, if a signal that a user selects a small-load washing program is received, the inner tub is controlled to rotate during a draining stage or after draining is finished, and dewatering is started until the load and the eccentric member in the tub are in an evenly distributed state.
8. A washing machine for implementing the control method of the washing machine as claimed in any one of claims 1 to 7, wherein the washing machine comprises an inner tub and an eccentric member provided on a sidewall of the inner tub, the eccentric member increasing its weight by absorbing water.
9. The washing machine as claimed in claim 8, wherein a plurality of water-repellent blades are provided inside the sidewall of the inner tub, one of the water-repellent blades is an eccentric water-repellent blade which can absorb water and increase weight, and the eccentric member is the eccentric water-repellent blade.
10. The washing machine as claimed in claim 9, wherein the eccentric paddle includes a housing and a water absorbing member disposed inside the housing, the water absorbing member absorbing water to increase its weight;
or the eccentric water-repellent blade is made of a material which can absorb water and increase weight and can keep the hardness of the eccentric water-repellent blade after absorbing water.
CN202011246869.6A 2020-11-10 2020-11-10 Control method of washing machine and washing machine Pending CN114457547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011246869.6A CN114457547A (en) 2020-11-10 2020-11-10 Control method of washing machine and washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011246869.6A CN114457547A (en) 2020-11-10 2020-11-10 Control method of washing machine and washing machine

Publications (1)

Publication Number Publication Date
CN114457547A true CN114457547A (en) 2022-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011246869.6A Pending CN114457547A (en) 2020-11-10 2020-11-10 Control method of washing machine and washing machine

Country Status (1)

Country Link
CN (1) CN114457547A (en)

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