CN113944032B - Method for operating a washing machine and washing machine - Google Patents
Method for operating a washing machine and washing machine Download PDFInfo
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- CN113944032B CN113944032B CN202010691548.0A CN202010691548A CN113944032B CN 113944032 B CN113944032 B CN 113944032B CN 202010691548 A CN202010691548 A CN 202010691548A CN 113944032 B CN113944032 B CN 113944032B
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- 238000005406 washing Methods 0.000 title claims abstract description 171
- 238000000034 method Methods 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 386
- 230000018044 dehydration Effects 0.000 claims abstract description 126
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 126
- 230000008569 process Effects 0.000 claims abstract description 20
- 230000000717 retained effect Effects 0.000 claims description 30
- 238000001514 detection method Methods 0.000 description 26
- 238000001035 drying Methods 0.000 description 10
- 238000007599 discharging Methods 0.000 description 7
- 238000004134 energy conservation Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- D06F33/40—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
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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
- D06F33/48—Preventing or reducing imbalance or noise
-
- 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/04—Signal transfer or data transmission arrangements
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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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/18—Washing liquid level
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention provides an operation method of a washing machine and the washing machine, wherein the washing machine is provided with an inner barrel, the inner barrel is configured to be capable of independently containing washing water, and the operation method comprises the following steps: receiving a single dehydration instruction set by a user; determining the water quantity of the inner barrel; judging whether the water quantity of the inner barrel reaches a preset water quantity or not; if the water quantity of the inner barrel reaches the preset water quantity, the inner barrel is controlled to rotate firstly to discharge the water of the inner barrel and then dehydrate, otherwise, the inner barrel is controlled to dehydrate directly. After receiving the single dehydration instruction, the invention firstly judges whether the water quantity of the inner barrel exceeds the preset water quantity, and then executes the corresponding dehydration process, thereby reducing the whole dehydration time of the washing machine, improving the dehydration efficiency, reducing the noise of the washing machine in the dehydration process, reducing the occurrence of barrel collision, improving the use experience of products, prolonging the service life of the washing machine, saving energy and reducing emission.
Description
Technical Field
The invention relates to the field of washing machines, in particular to an operation method of a washing machine and the washing machine.
Background
At present, the full-automatic washing machine is widely used and is favored by more and more people. The full-automatic washing machine comprises an outer barrel and an inner barrel arranged in the outer barrel, a dehydration hole is formed in the side wall of the inner barrel, when the washing machine finishes washing, the washing machine needs to discharge water in the barrel, and then clothes are dehydrated, and the process is as follows:
when in dehydration, the driving device drives the inner barrel to rotate, and the moisture in the clothes is discharged to the outer barrel from the dehydration holes on the side wall of the inner barrel and the drain holes at the bottom under the action of centrifugal force; when the water is discharged, the water discharge valve is opened, and water flow between the outer barrel and the inner barrel is discharged outside the washing machine through the water discharge port, the water discharge valve and the water discharge pipe at the bottom of the outer barrel in sequence. In the dewatering and draining process, the water levels in the inner barrel and the outer barrel are kept consistent until the water in the inner barrel flows downwards, flows into the outer barrel from the water drain hole at the bottom of the inner barrel, and is then drained from the water drain hole at the bottom of the outer barrel.
The washing machine has the following problems in operation:
1. the inner wall surface of the outer barrel and the outer wall surface of the inner barrel are easy to accumulate dirt, and secondary pollution is caused to clothes in the next washing process;
2. during washing/rinsing, water needs to be filled between the inner barrel and the outer barrel, and part of the water does not participate in washing, so that water resource waste is caused.
Therefore, the inner barrel body of the inner barrel washing machine is sealed, so that the inner barrel can independently hold washing water during washing/rinsing, water is prevented from being stored between the inner barrel and the outer barrel, and the problem of dirt collection between the inner barrel and the outer barrel is solved.
The upper part of the closed area of the inner barrel body is provided with a dehydration hole, and the position of the dehydration hole is higher than the highest water level capable of containing water in the inner barrel. Thus, during washing/rinsing, the washing water is only inside the inner tub; when in dehydration, the inner barrel rotates at a high speed, and water in the inner barrel rises to the dehydration hole to be separated out along the barrel wall under the centrifugal force.
The non-porous inner tub washing machine further includes a water collecting device having an open water collecting chamber, at least a tub bottom of the inner tub being disposed in the water collecting chamber for collecting water discharged from the inner tub and discharging it.
However, in the washing machine using the inner tub as the tub, if a large amount of water is stored in the inner tub due to the failure or abnormal interruption of the previous washing process, the inner tub is easily shaken due to the heavy weight of the water in the inner tub, so that the inner tub collides with the outer shell of the washing machine or the whole machine is shaken, and a large noise is generated, and the service life of the washing machine is easily damaged and reduced.
The present invention has been made in view of this.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an operation method of a washing machine, which solves the problems of eccentricity of an inner barrel, collision with a shell of the washing machine and the like by judging whether washing water exists in the inner barrel in advance and controlling a dehydration process.
The washing machine has an inner tub configured to be capable of separately holding washing water, and the operation method includes the steps of:
receiving a single dehydration instruction set by a user;
determining the water quantity of the inner barrel;
judging whether the water quantity of the inner barrel reaches a preset water quantity or not;
if the water quantity of the inner barrel reaches the preset water quantity, the inner barrel is controlled to rotate firstly to discharge the water of the inner barrel and then dehydrate, otherwise, the inner barrel is controlled to dehydrate directly.
In the above technical solution, the step of determining the water quantity of the inner barrel specifically includes the following steps:
controlling the inner barrel to execute a pre-dehydration step;
detecting the amount of the inner tub discharged in the pre-dehydration step;
and determining the water quantity of the inner barrel according to the detected water quantity discharged by the inner barrel in the pre-dewatering step.
In the above technical scheme, detecting the water amount discharged by the inner barrel in the pre-dewatering step specifically includes the following steps:
detecting the water receiving amount of a water collecting device of the washing machine in the pre-dewatering step, and determining the water amount discharged by the inner barrel in the pre-dewatering step according to the water receiving amount;
and/or detecting the flow rate of the dehydration channel of the inner barrel in the pre-dehydration step, and determining the water amount discharged by the inner barrel in the pre-dehydration step according to the flow rate of the dehydration channel.
In the above technical solution, before the inner tub is controlled to perform the pre-dewatering step, the method further includes: detecting the water level of the retained water in the water collecting device;
the step of detecting the water receiving amount of the water collecting device of the washing machine in the pre-dewatering step specifically comprises the following steps:
detecting the water level of the water collecting device after the pre-dewatering step;
and determining the water receiving amount according to the water level of the retained water and the water level after the pre-dewatering step.
In the above technical solution, before the inner tub is controlled to perform the pre-dewatering step, the method further includes:
detecting the water level of the retained water in the water collecting device;
judging whether the water level of the retained water is lower than a preset water level, if not, controlling the washing machine to discharge the retained water until the water level of the retained water is lower than the preset water level;
the step of detecting the water receiving amount of the water collecting device of the washing machine in the pre-dewatering step specifically comprises the following steps:
detecting the water level of the water collecting device after the pre-dewatering step, and determining the water receiving amount according to the water level after the pre-dewatering step;
or detecting a drainage flow rate of a drain pipe of the washing machine during the pre-dewatering step, and determining a water receiving amount according to the drainage flow rate.
In any of the above embodiments, the pre-dewatering step comprises:
and controlling the inner barrel to carry out intermittent dehydration for a first preset time period.
In the technical scheme, if the water quantity of the inner barrel is judged to reach the preset water quantity, the first preset time length is increased by the second preset time length to drain the water in the inner barrel;
if the water quantity of the inner barrel is judged not to reach the preset water quantity, the inner barrel is controlled to continuously dehydrate for a fourth preset time period;
in the technical scheme, a threshold value of a corresponding second preset duration is determined according to the water quantity discharged by the inner barrel in the pre-dehydration step; or determining a threshold value of the corresponding second preset time period according to the acquired water level of the washing step of the washing machine in the previous operation process.
In the technical scheme, after the inner barrel finishes intermittent dehydration, connection dehydration is carried out for a third preset time length;
in the above technical solution, the third preset duration is less than or equal to the fourth preset duration.
In any of the above technical solutions, if it is determined that the water amount of the inner tub reaches the preset water amount, the inner tub is controlled to perform intermittent dehydration for a fifth preset duration, and then perform continuous dehydration for a sixth preset duration;
and if the water quantity of the inner barrel is judged not to reach the preset water quantity, controlling the inner barrel to continuously dehydrate for a seventh preset time period.
In the above technical solution, the sixth preset duration is less than or equal to the seventh preset duration.
The present invention also provides a washing machine including:
an inner barrel;
and the controller is electrically connected with the inner barrel and is configured to control the inner barrel to operate according to the operation method of the washing machine according to any one of the technical schemes.
After receiving the single dehydration instruction, the embodiment determines whether washing water exists in the inner tub by judging whether the water quantity of the inner tub reaches the preset water quantity, if so, the embodiment indicates that the water quantity in the inner tub exceeds a safety value, and the risk of collision of the inner tub exists in the process of high-speed rotation dehydration of the inner tub. Therefore, the embodiment controls the inner barrel to increase the process of controlling the inner barrel to rotate at a low speed before the inner barrel rotates at a high speed, the washing water in the inner barrel gradually rises to a dehydration channel positioned at the upper part of the inner barrel under the action of centrifugal force generated by the rotation of the inner barrel at the low speed, and is discharged along the dehydration channel, and the inner barrel is controlled to dehydrate after the washing water in the inner barrel is discharged. Therefore, the barrel collision is effectively avoided, the effect of reducing noise of the washing machine in the dehydration process is achieved, the use experience of products is improved, and the service life of the washing machine is prolonged.
In addition, if the judgment result is that the water quantity of the inner barrel does not reach the preset water quantity, the water quantity in the inner barrel does not exceed the safety value. Therefore, the step of discharging washing water by low-speed rotation of the inner barrel can be omitted, the inner barrel is controlled to be directly dehydrated to spin-dry the washed objects, the washing machine is prevented from doing idle work, the whole dehydration time of the washing machine is reduced, the dehydration efficiency is improved, and the energy conservation and emission reduction are realized.
In a word, after receiving the single dehydration instruction, the embodiment firstly judges whether the water quantity of the inner barrel exceeds the preset water quantity, so as to achieve the purpose of distinguishing the use environment of the inner barrel (only the washings and a small quantity of water in the inner barrel or the washings and a large quantity of washings in the inner barrel), and has simple judgment logic, thereby avoiding the occurrence of barrel collision, achieving the effect of reducing the noise of the washing machine in the dehydration process, improving the use experience of the product, prolonging the service life of the washing machine, reducing the whole dehydration time of the washing machine, improving the dehydration efficiency, and realizing energy conservation and emission reduction.
The following describes the 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 and 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. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
FIG. 1 is a flow schematic block diagram of an operation method of a washing machine in one embodiment of the present invention;
FIG. 2 is a flow schematic block diagram of a method of operating a washing machine in accordance with another embodiment of the present invention;
fig. 3 is a block diagram schematically illustrating a structure of a washing machine in accordance with an embodiment of the present invention.
In the figure: 10. a washing machine; 11. an inner barrel; 12. and a controller.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying 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 directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific 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 explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The present invention will be described in further detail with reference to examples.
The invention provides an operation method of a washing machine. The washing machine can be a pulsator washing machine, a drum washing machine, a washing and drying integrated machine and the like. Taking a pulsator washing machine as an example, the washing machine has an inner tub configured to be capable of separately holding washing water. The upper part of the closed area of the barrel body of the inner barrel is provided with a dehydration channel (such as a dehydration hole), and the position of the dehydration channel is higher than the highest water level capable of containing water in the inner barrel. Thus, the washing water is only inside the inner tub during washing/rinsing; when in dehydration, the inner barrel rotates at a high speed, and water in the inner barrel rises to the dehydration hole to be separated out along the barrel wall under the centrifugal force.
The non-porous inner tub washing machine further includes a water collecting device having an open water collecting chamber. At least the bottom of the inner barrel is arranged in the water collecting chamber for collecting the water discharged from the inner barrel and discharging the water.
Specifically, the water collecting device can be an outer barrel of the existing washing machine; or, the water collecting device can be of a half-barrel structure, the barrel bottom of the inner barrel is arranged in the half-barrel structure, and the edge of the barrel opening of the half-barrel structure is lower than a water level line of the highest water level of the inner barrel. The inner barrel is communicated with the water collecting device through a dehydration channel and is used for conveying water thrown out from the dehydration opening into the water collecting device through the dehydration channel to be discharged.
Compared with the prior art that the outer barrel is used as the water containing barrel, the washing machine with the inner barrel is characterized in that washing water cannot enter the water collecting device in the washing process, on one hand, the utilization rate of the washing water can be improved, the aim of greatly saving the washing water is fulfilled, on the other hand, dirt and bacteria accumulated in the area between the inner barrel and the water collecting device cannot be in water flow contact with washings in the inner barrel, so that cross infection of the bacteria can be effectively avoided, and the cleanliness and the sanitation of the washing machine are improved.
As shown in fig. 1, the operation method of the washing machine of the present invention includes the steps of:
step S101: receiving a single dehydration instruction set by a user;
step S102: determining the water quantity of the inner barrel;
step S103: judging whether the water quantity of the inner barrel reaches a preset water quantity or not;
if the water volume of the inner tub reaches the preset water volume, step S104 is executed: the inner tub is controlled to rotate first to drain the water of the inner tub and then dewater, otherwise, step S105 is performed: and controlling the inner barrel to directly dehydrate.
As will be understood by those skilled in the art, the service instructions of the washing machine generally include a washing instruction, a rinsing instruction, a dehydrating instruction, etc., and the single dehydrating instruction in this embodiment means that only the dehydrating instruction is included in the service instructions set by the user.
It will be appreciated that typically a user will set a single dehydration instruction in two situations: 1) The user can finish the washing work of the washed objects in modes of hand washing and the like, and only the washing machine is required to finish the dehydration and spin-drying of the washed objects; 2) The washing machine is interrupted in the previous operation due to power failure or malfunction, etc., and a user sets a single dehydration command to drain the washing water in the inner tub and dehydrate and spin-dry the laundry.
In the first case, since only the laundry to be dehydrated and a small amount of water are present in the inner tub, the inner tub rotates relatively smoothly when the washing machine is powered on to dehydrate, and the possibility of shaking the tub is small. And in the second case, as the washing to be dehydrated and a large amount of water exist in the inner barrel, when the washing machine is electrified and dehydrated, the water in the inner barrel is extremely easy to cause the inner barrel to shake greatly because of the weight deviation, so that the inner barrel is impacted on the outer shell of the washing machine or the whole machine is caused to shake, larger noise is generated, and the service life of the washing machine is also easy to damage and reduce.
In order to solve the above-mentioned problems, after receiving a single dehydration instruction, the present embodiment determines whether washing water is present in the inner tub by determining whether the water amount of the inner tub reaches a preset water amount, and if the determination result is that the water amount of the inner tub reaches the preset water amount, it indicates that the water amount in the inner tub exceeds a safe value, and there is a risk of bumping into the inner tub during the high-speed spin-drying process of the inner tub. Therefore, the embodiment controls the inner barrel to increase the process of controlling the inner barrel to rotate at a low speed before the inner barrel rotates at a high speed, so that the washing water in the inner barrel is gradually raised to a dehydration channel positioned at the upper part of the inner barrel under the action of centrifugal force generated by the rotation of the inner barrel at the low speed, is discharged along the dehydration channel, and then controls the inner barrel to dehydrate after the washing water in the inner barrel is discharged. Therefore, the barrel collision is effectively avoided, the effect of reducing noise of the washing machine in the dehydration process is achieved, the use experience of products is improved, and the service life of the washing machine is prolonged.
In addition, if the judgment result is that the water quantity of the inner barrel does not reach the preset water quantity, the water quantity in the inner barrel does not exceed the safety value. Therefore, the step of discharging washing water by low-speed rotation of the inner barrel can be omitted, the inner barrel is controlled to be directly dehydrated to spin-dry the washed objects, the washing machine is prevented from doing idle work, the whole dehydration time of the washing machine is reduced, the dehydration efficiency is improved, and the energy conservation and emission reduction are realized.
In a word, after receiving the single dehydration instruction, the embodiment firstly judges whether the water quantity of the inner barrel exceeds the preset water quantity, so as to achieve the purpose of distinguishing the use environment of the inner barrel (only the washings and a small quantity of water in the inner barrel or the washings and a large quantity of washings in the inner barrel), and has simple judgment logic, thereby avoiding the occurrence of barrel collision, achieving the effect of reducing the noise of the washing machine in the dehydration process, improving the use experience of the product, prolonging the service life of the washing machine, reducing the whole dehydration time of the washing machine, improving the dehydration efficiency, and realizing energy conservation and emission reduction.
It should be noted that the preset water amount refers to a water amount that causes the inner tub to shake during the high-speed spin-drying process of the inner tub. Since the washing machines of different specifications have different amounts of water which cause the inner tub to shake during the dehydration process, the embodiment is not limited to a specific value of the preset amount of water, and a person skilled in the art can set any value as the preset amount of water according to actual requirements.
In some embodiments, detecting the water level of the inner tub may be achieved by providing a water level detecting device in the inner tub.
In certain embodiments, as shown in fig. 2, step S102: the method for determining the water quantity of the inner barrel specifically comprises the following steps:
step S201: controlling the inner barrel to execute a pre-dehydration step;
step S202: detecting the water quantity discharged by the inner barrel in the pre-dewatering step;
step S203: and determining the water quantity of the inner barrel according to the detected water quantity discharged by the inner barrel in the pre-dewatering step.
In this embodiment, the amount of water discharged from the inner tub in the pre-dehydration step is detected, and it can be understood that if the amount of water of the inner tub is relatively small, the amount of water discharged from the inner tub is relatively small during the pre-dehydration; if the amount of water in the inner tub is relatively large, the amount of water discharged from the inner tub is relatively large during the pre-dehydration process. The water discharged through the pre-dehydration step reacts with the water in the inner barrel, and the detection mode is simple and easy to realize.
And compared with the scheme that the inner barrel is provided with the water level detection device, the embodiment avoids the interference of the washings on detection, and understandably, the higher the water level of the inner barrel is caused by the existence of the washings, the larger the influence of the washings on the water level is, and the larger the risk of misjudgment of the scheme that the inner barrel is provided with the water level detection device is. In the embodiment, the water quantity of the inner barrel is determined by detecting the water quantity discharged by the inner barrel in the pre-dewatering step, so that the interference of washings on detection is effectively avoided, the probability of misjudgment is reduced, and the detection accuracy is higher.
In certain embodiments, step S202: the detection of the water quantity discharged by the inner barrel in the pre-dewatering step specifically comprises the following steps:
the water receiving amount of the water collecting device of the washing machine in the pre-dewatering step is detected, and the water amount discharged by the inner barrel in the pre-dewatering step is determined according to the water receiving amount.
Wherein the water collecting device refers to a device for receiving the washing water of the inner tub. In some embodiments, the water collecting device communicates with a drain pipe of the washing machine, and discharges the received washing water out of the machine body through the drain pipe. For example, the water collecting device is an outer barrel or a water collecting disc.
In this embodiment, the water amount discharged by the inner tub in the pre-dewatering step is determined by detecting the water receiving amount of the water collecting device in the pre-dewatering step, where the water receiving amount of the water collecting device in the pre-dewatering step may be obtained by detecting the water level of the water collecting device, the water level increment of the water collecting device, the water level change rate of the water collecting device, etc., and the detection mode is simpler and easy to implement, which is beneficial to reducing the difficulty of detection. And because the water receiving amount of the water collecting device is detected, the detection element can be arranged on the water collecting device, the detection element is prevented from rotating along with the inner barrel, the risks of shaking, shifting and loosening of the detection element are reduced, and the service life of the detection element is prolonged. And avoid the interference of interior bucket rotation to detecting element, promote the precision that detects.
Further, in certain embodiments, at step S201: before the inner barrel is controlled to execute the pre-dewatering step, the method further comprises the following steps:
detecting the water level of the retained water in the water collecting device;
the step of detecting the water receiving amount of the water collecting device of the washing machine in the pre-dewatering step specifically comprises the following steps:
detecting the water level of the water collecting device after the pre-dewatering step;
and determining the water receiving amount according to the water level of the retained water and the water level after the pre-dewatering step.
In this embodiment, the water receiving amount is determined according to the water level of the retained water and the water level after the pre-dewatering step, that is, the water receiving amount of the water collecting device in the pre-dewatering step is determined by the water level increment of the water collecting device, so that on one hand, the difficulty in detection is reduced, the detection method is simple and easy to implement, on the other hand, the interference of the retained water in the water collecting device to the detection result is eliminated, the detection accuracy is improved, and further the risk of misjudgment is reduced.
In other embodiments, at step S201: before the inner barrel is controlled to execute the pre-dewatering step, the method further comprises the following steps:
detecting the water level of the retained water in the water collecting device;
judging whether the water level of the retained water is lower than a preset water level, if not, controlling the washing machine to discharge the retained water until the water level of the retained water is lower than the preset water level;
the step of detecting the water receiving amount of the water collecting device of the washing machine in the pre-dewatering step specifically comprises the following steps:
and detecting the water level of the water collecting device after the pre-dewatering step, and determining the water receiving amount according to the water level after the pre-dewatering step.
The difference between the present embodiment and the previous embodiment is that after detecting the water level of the retained water in the water collecting device, it is first determined whether the water level of the retained water is lower than the predetermined water level. If the water level of the retained water is lower than the preset water level, the condition that no retained water exists in the water collecting device or only a small amount of retained water exists in the water collecting device is indicated, the influence of the small amount of retained water on the detection result is negligible, and the water level of the water collecting device after the pre-dewatering step can be directly determined as the water receiving amount of the water collecting device in the pre-dewatering step, so that the step of processing detection data is omitted, the workload of a processor or a controller is reduced, the control time is shortened, and the control efficiency is improved.
If the water level of the retained water is higher than the preset water level, the condition that the retained water in the water collecting device is more is indicated, and the retained water in the water collecting device is discharged before the pre-dewatering step is carried out, so that the interference of the retained water in the water collecting device on the detection result is eliminated, the detection accuracy is improved, and the risk of misjudgment is further reduced.
Alternatively, since the interference of the stagnant water in the water collecting device is eliminated before the pre-dewatering step is performed, a person skilled in the art can also directly detect the drainage flow rate of the drain pipe of the washing machine during the pre-dewatering step and determine the water receiving amount according to the drainage flow rate. The detection mode is more flexible and various. One skilled in the art can select different detection modes according to specific needs.
It should be noted that, since the water levels of the interference of the washing machines with different specifications to the detection result are different, the embodiment is not limited to a specific value of the preset water level, and a person skilled in the art can set any value as the preset water level according to the actual requirement.
In other embodiments, step S202: the detection of the water quantity discharged by the inner barrel in the pre-dewatering step specifically comprises the following steps:
and detecting the flow of the dehydration channel of the inner barrel in the pre-dehydration step, and determining the water quantity discharged by the inner barrel in the pre-dehydration step according to the flow of the dehydration channel.
In this embodiment, the amount of water discharged by the pre-dewatering step of the inner barrel is determined by detecting the flow of the dewatering channel, so that the detected data directly reflects the water amount condition of the inner barrel, the detected data is not required to be processed, errors caused by data processing are reduced, the accuracy of detection is improved, and the risk of misjudgment is further reduced. In addition, the embodiment reduces the workload of the processor or the controller, shortens the control time and improves the control efficiency.
In certain embodiments, the pre-dewatering step comprises: and controlling the inner barrel to carry out intermittent dehydration for a first preset time period.
In this embodiment, intermittent dehydration is performed for a first preset period of time by controlling the inner tub so as to achieve the purpose of pre-dehydration. For example, the intermittent dehydration may be achieved by driving the inner tub to rotate at a low speed at a certain timing by the driving means, or by driving the inner tub to rotate at a low speed at a certain timing by the driving means. Therefore, during the pre-dewatering period, the inner barrel can rotate at a relatively low speed to gradually generate centrifugal force, water in the inner barrel gradually rises in a spiral way and is discharged to the water collecting device through the dewatering channel of the inner barrel, and the risk of barrel collision during the pre-dewatering period is avoided. Meanwhile, during the pre-dewatering period, the centrifugal force generated by the low-speed operation of the inner barrel can be utilized to level the washings in the inner barrel, so that the risk of barrel collision in the high-speed dewatering process is further reduced.
Further, if the water quantity of the inner barrel is judged to reach the preset water quantity, the first preset time length is increased by a second preset time length to drain the water in the inner barrel;
and if the water quantity of the inner barrel is judged not to reach the preset water quantity, controlling the inner barrel to continuously dehydrate for a fourth preset time period.
That is, if it is determined that the amount of water in the inner tub is large, the intermittent dehydration is controlled to be prolonged so that the inner tub continues to operate at a relatively low speed, and water in the inner tub is discharged to the water collecting device through the dehydration passage of the inner tub, thereby achieving the purpose of discharging the washing water in the inner tub. Thus, the aim of draining water is achieved by prolonging the duration of the pre-dewatering step, and the control is simpler.
If the water quantity of the inner barrel is less, the inner barrel is controlled to continuously dehydrate, so that the inner barrel continuously runs at a relatively high speed, and water in the washings is thrown out under the action of centrifugal force, and the purpose of dehydration and spin-drying is achieved.
Preferably, in some embodiments, the threshold value of the corresponding second preset time period is determined according to the amount of water discharged from the inner tub in the pre-dewatering step.
For example, the water amount discharged from the inner tub in the pre-dewatering step may be matched with a plurality of gears by presetting the plurality of gears each having a different water amount and a drainage time period corresponding to the water amount, thereby determining a time period to be prolonged.
According to the embodiment, the threshold value of the corresponding second preset duration is determined through the water quantity discharged by the inner barrel in the pre-dewatering step, so that the drainage duration is more reasonable, and the aim of reasonably controlling the whole dewatering duration is fulfilled. The washing machine has the advantages of avoiding the risk of collision of the washing water in the inner barrel caused by less drainage time in the dehydration process, avoiding the idle work of the washing machine caused by overlong drainage time, and realizing energy conservation and emission reduction.
Of course, in other embodiments, the threshold value of the corresponding second preset duration may also be determined according to the acquired water level of the washing step of the washing machine during the previous operation. The amount of water in the inner tub thus obtained is relatively more accurate.
Furthermore, after the intermittent dehydration of the inner barrel is completed, the connection dehydration of the third preset time period is performed, and as the water in the inner barrel is discharged through the intermittent dehydration, the inner barrel can rotate at a relatively high speed, so that the water in the washings is thrown out under the action of centrifugal force, and the purpose of dehydration and spin-drying is realized.
Preferably, the third preset duration is less than or equal to the fourth preset duration.
It can be understood that, because the washings are dehydrated and dried to a certain extent in the process of reaching the aim of draining by prolonging the intermittent dehydration time, the third preset time is controlled to be less than or equal to the fourth preset time, namely, the time of dehydration is correspondingly shortened in the step of draining and then dehydrating the water of the inner barrel by rotating the inner barrel, so that the aim of reasonably controlling the whole dehydration instruction time is fulfilled. The situation that the washing is not spin-dried due to less dehydration time is avoided, and the idle work of the washing machine due to overlong dehydration time is avoided, so that energy conservation and emission reduction are realized.
In some embodiments, if it is determined that the water amount of the inner tub reaches the preset water amount, the inner tub is controlled to perform intermittent dehydration for a fifth preset time period, and then perform continuous dehydration for a sixth preset time period;
and if the water quantity of the inner barrel is judged not to reach the preset water quantity, controlling the inner barrel to continuously dehydrate for a seventh preset time period.
That is, if it is determined that the amount of water in the inner tub is large, the inner tub is controlled to perform intermittent dehydration for a fifth preset period of time before continuous dehydration, so that the inner tub can be operated at a relatively low speed, and water in the inner tub is discharged to the water collecting device through the dehydration channel of the inner tub, thereby achieving the purpose of discharging washing water in the inner tub.
It should be noted that the batch dehydration in this step and the batch dehydration in the pre-dehydration step may or may not be identical in the operating parameters of the inner tub.
If the water quantity of the inner barrel is less, the inner barrel is controlled to directly and continuously dehydrate, so that the inner barrel continuously runs at a relatively high speed, and water in the washings is thrown out under the action of centrifugal force, and the aim of dehydrating and spin-drying is fulfilled.
Preferably, the sixth preset duration is less than or equal to the seventh preset duration.
It can be understood that under the condition that the water quantity of the inner barrel is judged to be more, as the washing is dehydrated and dried to a certain extent in the process of achieving the aim of draining by adding the intermittent dehydration step, the sixth preset duration is controlled to be less than or equal to the seventh preset duration, namely, in the step that the inner barrel rotates first to drain the water of the inner barrel and then dehydrate, the dehydration duration is correspondingly shortened, and the aim of reasonably controlling the integral dehydration instruction duration is fulfilled. The situation that the washing is not spin-dried due to less dehydration time is avoided, and the idle work of the washing machine due to overlong dehydration time is avoided, so that energy conservation and emission reduction are realized.
One embodiment is
Most of the inner barrels of the existing washing machines are provided with holes, the inner barrels are communicated with the outer barrels, and dehydration can be achieved by detecting the water level through a water level sensor.
However, the non-porous inner tub (i.e., the inner tub is used as the water containing tub) cannot be communicated with the outer tub, and when a user selects single dehydration, the user cannot judge whether the user uses the washing machine to carry out independent dehydration after washing clothes by hand or whether the user wants to drain water accumulated in the tub caused by power failure or power failure in the washing process according to the water level of the outer tub.
Specifically, when a user selects single dehydration, a water level frequency value in an outer tub of the washing machine is detected, water is first drained if the water level is detected to be above the empty tub level of the outer tub, and dehydration is started if the water level is detected to be below the empty tub level. The water amount in the drum is different under the two conditions of washing clothes by a user by a single dewatering hand and draining accumulated water in the drum, so that the water amount thrown from the edge of the inner drum to the outer drum is different just before dewatering. The water discharge amount of the washing machine is detected at the first 30s of dehydration. And comparing the accumulated water with a preset value in a program, when the accumulated water is larger than the preset value, indicating that the accumulated water exists in the barrel, discharging accumulated water by a user, dehydrating clothes, and running a first dehydration sequence. When the spin-drying time is smaller than the preset value, the user is in the barrel to wash the clothes for single spin-drying by hand, and the spin-drying time sequence II is operated. Therefore, different dewatering time sequences are used under different conditions, energy is saved, and better use experience is brought to users.
Time sequence one: intermittent dehydration for 2min, continuous dehydration for 3min, inertial dehydration for 30s and braking for 5s.
And a time sequence II: intermittent dehydration for 30 s+continuous dehydration for 4 min+inertial dehydration for 30 s+braking for 5s.
As shown in fig. 3, a second aspect of the present invention provides a washing machine 10, comprising:
an inner tub 11;
and a controller 12 electrically connected to the inner tub 11, the controller 12 being configured to control the inner tub 11 to operate according to the operation method of the washing machine of any one of the above embodiments.
The present invention is not limited to the above embodiments, but is capable of being modified or varied in many ways, and still fall within the scope of the present invention.
Claims (10)
1. A method of operating a washing machine having an inner tub configured to be capable of separately holding washing water, the method comprising the steps of:
receiving a single dehydration instruction set by a user;
determining the water quantity of the inner barrel;
judging whether the water quantity of the inner barrel reaches a preset water quantity or not;
if the water quantity of the inner barrel reaches the preset water quantity, controlling the inner barrel to rotate firstly to discharge the water of the inner barrel and then dehydrate, otherwise, controlling the inner barrel to dehydrate directly;
the step of determining the water quantity of the inner barrel specifically comprises the following steps:
controlling the inner barrel to execute a pre-dehydration step;
detecting the amount of water discharged by the inner tub in the pre-dehydration step;
determining the water quantity of the inner tub according to the detected water quantity discharged by the inner tub in the pre-dehydration step;
the pre-dewatering step comprises: controlling the inner barrel to intermittently dehydrate for a first preset time period;
if the water quantity of the inner barrel is judged to reach the preset water quantity, increasing the first preset time length by a second preset time length to drain the water in the inner barrel;
and if the water quantity of the inner barrel is judged not to reach the preset water quantity, controlling the inner barrel to continuously dehydrate for a fourth preset time period.
2. The method of operating a washing machine as claimed in claim 1, wherein the detecting the amount of water discharged from the inner tub in the pre-dehydrating step comprises the steps of:
detecting the water receiving amount of a water collecting device of the washing machine in the pre-dewatering step, and determining the water amount discharged by the inner barrel in the pre-dewatering step according to the water receiving amount;
and/or detecting the flow rate of the dehydration channel of the inner barrel in the pre-dehydration step, and determining the water amount discharged by the inner barrel in the pre-dehydration step according to the flow rate of the dehydration channel.
3. A method of operating a washing machine as claimed in claim 2, wherein,
before the controlling the inner tub to perform the pre-dewatering step, further includes: detecting the water level of the retained water in the water collecting device;
the step of detecting the water receiving amount of the water collecting device of the washing machine in the pre-dewatering step specifically comprises the following steps:
detecting the water level of the water collecting device after the pre-dewatering step;
and determining the water receiving amount according to the water level of the retained water and the water level after the pre-dewatering step.
4. A method of operating a washing machine as claimed in claim 2, wherein,
before the controlling the inner tub to perform the pre-dewatering step, further includes:
detecting the water level of the retained water in the water collecting device;
judging whether the water level of the retained water is lower than a preset water level, if not, controlling the washing machine to discharge the retained water until the water level of the retained water is lower than the preset water level;
the step of detecting the water receiving amount of the water collecting device of the washing machine in the pre-dewatering step specifically comprises the following steps:
detecting the water level of the water collecting device after the pre-dewatering step, and determining the water receiving amount according to the water level after the pre-dewatering step;
or detecting a drainage flow rate of a drain pipe of the washing machine during a pre-dewatering step, and determining the water receiving amount according to the drainage flow rate.
5. The operation method of a washing machine as claimed in any one of claims 1 to 4, wherein a threshold value of a corresponding second preset time period is determined according to an amount of water discharged from the inner tub at the pre-dehydration step; or determining a threshold value of a corresponding second preset time period according to the acquired water level of the washing step of the washing machine in the previous running process.
6. A method of operating a washing machine as claimed in claim 5, wherein,
and after the inner barrel finishes intermittent dehydration, carrying out connection dehydration for a third preset time period.
7. A method of operating a washing machine as claimed in claim 6, wherein,
the third preset time period is smaller than or equal to the fourth preset time period.
8. A method of operating a washing machine as claimed in any one of claims 1 to 4, characterized in that,
if the water quantity of the inner barrel is judged to reach the preset water quantity, the inner barrel is controlled to carry out intermittent dehydration for a fifth preset time period, and then continuous dehydration for a sixth preset time period is carried out;
and if the water quantity of the inner barrel is judged not to reach the preset water quantity, controlling the inner barrel to continuously dehydrate for a seventh preset time period.
9. A method of operating a washing machine as claimed in claim 8, wherein,
the sixth preset duration is less than or equal to the seventh preset duration.
10. A washing machine, comprising:
an inner barrel;
a controller electrically connected to the inner tub, the controller being configured to control the inner tub to operate according to the operation method of the washing machine as claimed in any one of claims 1 to 9.
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| KR100239358B1 (en) * | 1997-04-29 | 2000-01-15 | 구자홍 | Washing method for washing machine |
| JP2000342884A (en) * | 1999-06-09 | 2000-12-12 | Sanyo Electric Co Ltd | Washing machine |
| KR100934652B1 (en) * | 2002-12-28 | 2009-12-31 | 엘지전자 주식회사 | Washing machine control method |
| CN105734887B (en) * | 2014-12-09 | 2019-04-05 | 青岛海尔洗衣机有限公司 | A kind of washing machine drainage control method |
| CN106702660B (en) * | 2015-07-20 | 2020-04-03 | 青岛海尔洗衣机有限公司 | Dewatering control method for washing machine |
| CN106480645B (en) * | 2015-08-31 | 2020-06-30 | 青岛海尔洗衣机有限公司 | Water level control method for water-saving washing machine |
| CN109468795B (en) * | 2017-09-08 | 2021-08-17 | 青岛胶南海尔洗衣机有限公司 | Washing machine drainage control method and washing machine |
| CN110144700B (en) * | 2018-02-12 | 2022-11-18 | 青岛海尔洗衣机有限公司 | Dewatering control method of washing machine |
| CN110144697B (en) * | 2018-02-12 | 2023-03-14 | 青岛海尔洗衣机有限公司 | Drainage control method of washing machine |
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