WO2017080364A1 - 一种自清洁洗衣机排脱水控制方法 - Google Patents

一种自清洁洗衣机排脱水控制方法 Download PDF

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Publication number
WO2017080364A1
WO2017080364A1 PCT/CN2016/103557 CN2016103557W WO2017080364A1 WO 2017080364 A1 WO2017080364 A1 WO 2017080364A1 CN 2016103557 W CN2016103557 W CN 2016103557W WO 2017080364 A1 WO2017080364 A1 WO 2017080364A1
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Prior art keywords
proceed
next step
drain valve
control
rotate
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PCT/CN2016/103557
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English (en)
French (fr)
Inventor
许升
刘尊安
吕艳芬
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青岛海尔洗衣机有限公司
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Application filed by 青岛海尔洗衣机有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to KR1020187016191A priority Critical patent/KR102060807B1/ko
Priority to JP2018523762A priority patent/JP6723352B2/ja
Priority to EP16863541.5A priority patent/EP3375926A4/en
Priority to US15/775,486 priority patent/US11066777B2/en
Publication of WO2017080364A1 publication Critical patent/WO2017080364A1/zh

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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 
    • D06F33/43—Control of cleaning or disinfection of washing machine parts, e.g. of tubs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
    • B08B9/0817—Cleaning containers having tubular shape, e.g. casks, barrels, drums by agitating or tumbling containers filled with liquid or liquid and abrasive, e.g. chain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/0821—Handling or manipulating containers, e.g. moving or rotating containers in cleaning devices, conveying to or from cleaning devices
    • 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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a vertical axis
    • 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 
    • 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
    • D06F33/42—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/008—Methods for washing, rinsing or spin-drying for disinfecting the tub or the drum
    • 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/06—Arrangements for preventing or destroying scum
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • 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
    • 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
    • D06F2105/08—Draining of washing liquids
    • 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
    • D06F2105/48—Drum speed

Definitions

  • the invention relates to the field of washing machines, in particular to a control method of a washing machine, in particular to a dehydration control method for a self-cleaning washing machine.
  • the existing washing machine drives the pulsator at the bottom of the inner tub to drive the clothes to roll and rotate by the motor to drive the clothes, the clothes and the pulsator, and the clothes and the barrel to rub each other to achieve the purpose of washing the clothes.
  • the water When washing, the water contains various solid particles, such as: calcium ions in water and scale formed by calcium carbonate, free substances in laundry soap, lint in washed clothes, and human body remaining on the laundry. Oily proteins and various organic residues, bacteria brought in by the laundry, and other substances form a suspension. Since the diffusion is unconditionally absolute, the smaller the particles, the more severe the diffusion. For particles smaller than a few micrometers, such as viruses or proteins, it easily spreads into the interlayer of the washing machine barrel, and accumulates on the outer wall of the inner tub of the washing machine and the inner wall of the outer tub to form the so-called dirt. These dirt can cause secondary pollution to the clothing and threaten the health of the user.
  • solid particles such as: calcium ions in water and scale formed by calcium carbonate, free substances in laundry soap, lint in washed clothes, and human body remaining on the laundry. Oily proteins and various organic residues, bacteria brought in by the laundry, and other substances form a suspension. Since the diffusion is unconditionally absolute, the smaller the particles
  • Method 1 After the last rinsing is completed, the drain valve is opened, the drainage starts, until the water level controller of the signal detecting circuit monitors that the water level in the outer tub reaches the first water level; the computer program controller controls the drain valve to close, the drain stops; the computer program controller The control motor is energized, the inner barrel rotates, and the time controller to the computer program controller detects the first set time; the computer program controller controls the motor to be powered off, the inner barrel rotates freely, and the time controller of the computer program controller detects the second set time. The computer program controller controls the drain valve to open, and the draining starts until the water level controller of the signal detecting circuit monitors that the water level in the outer tub reaches the second set water level; and enters the normal dehydration process.
  • Method 2 After the last rinsing is completed, the drain valve is opened, and the drainage starts until the water level controller of the signal detecting circuit monitors that the water level in the outer tub reaches the first water level; the computer program controller controls the motor to be energized, and the inner tub rotates until the signal detecting circuit The water level controller monitors the water level in the outer tub to reach the second set water level; the computer program controller controls the motor to be powered off, the inner tub rotates freely; and enters the normal dehydration program.
  • This method only needs to clean the barrel when the user selects the barrel cleaning program, and the last time the water is drained, the washing strength is poor, and the root of the dirt formation, that is, the dirt accumulated by each washing, cannot be eliminated.
  • the method only uses the impact force of the inner bucket to drive the water flow to clean the barrel wall, and the effect of the net barrel is difficult to ensure.
  • the second defect of the first method is solved, but the first and third defects still exist.
  • the applicant has previously developed a washing machine with cleaning particles between the inner and outer barrels, which cleans the inner and outer barrel walls of the washing machine by driving the cleaning particles during the washing process to clean the inner and outer barrels of the washing machine.
  • the solution solves the problem of cleaning the dirt on the barrel wall.
  • the inner and outer barrel walls of the ordinary washing machine have more and more dirt remaining from the top to the bottom, the upper barrel wall is less polluted, and the lower part is more polluted, especially the bottom wall of the barrel.
  • the pollution is the most serious.
  • the cleaning particles between the inner and outer barrels have more time between the inner and outer barrel walls, especially in the middle and above areas, and between the inner and outer barrel bottoms and between the inner and outer barrel walls. Less, therefore, the cleanliness of the inner and outer barrel bottom walls and the lower part of the peripheral wall is relatively weak.
  • the applicant discloses a collecting and controlling method for cleaning particles of a washing machine with self-cleaning function and a washing machine.
  • the washing and rinsing between the inner and outer barrels of the washing machine is provided to clean the inner and outer barrel walls with water flow.
  • the inner bucket is controlled to operate differently, and the cleaning particles are flushed into the drain port and collected by the drain valve.
  • the inner tub rotates, causing the water flow to rotate, so that the cleaning particles clean the inner and outer barrel walls, and at the same time, the cleaning particles between the inner and outer barrels are dropped, and the water level drops, and flows into the drainage port together with the water flow, and is collected by the drain valve.
  • the inner bucket is controlled to perform at least one brake action, so that the cleaning particles between the inner and outer barrels are dropped, and the water drawn from the clothes is washed into the drainage port and collected by the drain valve.
  • the inner barrel is controlled to rotate at a low speed, and the cleaning particles cannot be driven to collide with the barrel wall, only to reduce the cleaning particles remaining between the inner and outer barrels, so that the cleaning particles can be completely collected, and the collision noise caused by dehydration is reduced. It is also impossible to strengthen the cleaning of the inner and outer barrel bottom walls and the lower part of the peripheral wall.
  • the present invention has been made in view of the above.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a self-cleaning washing machine draining dehydration control method capable of completely removing the dirt on the barrel wall of the washing machine, keeping the washing environment clean, eliminating secondary pollution, and improving the washing rate of the laundry.
  • a self-cleaning washing machine draining dehydration control method wherein a cleaning particle is cleaned in the space between the inner and outer barrels of the washing machine to clean the outer wall of the inner tub and the inner wall of the outer tub with the movement of water.
  • the washing machine divides the dewatering process into at least two control stages according to the quantity of the cleaning particles per unit volume in the water in the space, each stage is provided with a different inner barrel rotation mode, and the more the unit volume of the cleaning volume per unit volume in the water, the inner barrel The higher the speed.
  • the washing machine selects a corresponding control stage according to the number of cleaning particles per unit volume in the water in the detection space.
  • control method of the barrel rotation in a control stage is: closing the drain valve, controlling the inner barrel to rotate at the set speed for a set time, opening the drain valve, controlling the inner barrel to rotate at another set speed, and determining the unit volume cleaning particles in the water. The quantity, when the number of cleaning particles per unit volume in the water meets the corresponding number in the next stage, enters the next control stage.
  • the dehydration of the second row is a step of dehydrating after the washing, and according to whether the state of dehydration after washing is adjusted, the inner tub is adjusted differently. The way of turning.
  • the drain valve is closed, the inner tub is controlled to rotate at a set time of at least two different speeds, the drain valve is opened, and the inner tub is controlled to rotate at another set speed.
  • the speed at which the inner tub rotates when the drain valve is closed is greater than the speed at which the inner tub rotates when the drain valve is opened.
  • step (9) determine whether K ⁇ K2, and if so, proceed to the next step, if not, proceed to step (11);
  • the above four specific dewatering control methods are set according to the capacity of the washing machine.
  • V2 50-300 RPM, preferably 80-120 RPM,
  • V3 0-120 RPM, preferably 30-80
  • V4 0-50 RPM, preferably 0-30 RPM.
  • the inner barrel rotation speed control stage corresponding to the quantity K4 of the cleaning volume per unit volume in the water in the washing machine space is preset to clean the bottom wall stage of the inner and outer barrels, and the water level of the stage is located at the height of the inner bottom of the barrel.
  • K5 corresponds to the empty bucket point determined by the washing machine water level sensor.
  • the amount of cleaning particles to be placed needs to be input into the washing machine; after the washing machine is used for a long time, the cleaning particles may be worn or contaminated, and new cleaning particles need to be replaced. When the cleaning particles are replaced, the cleaning particles are also required to be input. quantity.
  • the rotation speed of the barrel in the dehydration program of the present invention is a step-by-step speed increasing process, which may be a constant rotation speed of each segment, or may be continuously accelerated in each segment, or uniformly accelerated during the entire dehydration process, preferably segmented.
  • the constant rotation of the inner tub is controlled to prevent the inner tub from continuously accelerating and generating centrifugal force to re-pump the cleaning particles from the lower drain device to the inner and outer barrels to collide with the barrel wall to generate noise.
  • the present invention has the following advantageous effects compared with the prior art.
  • the self-cleaning washing machine of the present invention is a washing machine having the function of cleaning the inner and outer barrel walls between the inner and outer barrels, and the water between the inner and outer barrels is exchanged with the water in the inner barrel during the washing process.
  • the formation of water flow drives the cleaning particles between the inner and outer barrels to swim in the water, colliding and rubbing the inner and outer barrel walls, cleaning the inner and outer barrel wall deposits, preventing the generation of dirt and preventing the breeding of bacteria.
  • the cleaning particles of the washing machine of the invention can not only clean the inner and outer barrel walls during the washing process, but also can clean the inner and outer barrel walls every time the water is drained. According to the concentration of the cleaning particles between the inner and outer barrels, different inner barrel rotation modes are adopted to adjust the strength and frequency of the cleaning particles colliding with the bottom wall of the barrel, thereby improving the cleaning rate.
  • the invention adopts a control method for changing the drainage, so that the outer side of the inner tub of the washing machine and the inner side and the bottom surface of the outer tub are cleaned to remove residual dirt and keep the inner environment of the laundry washing clean.
  • the movement mode of the inner tub is adjusted according to the number of cleaning particles per unit volume in the water in the space to increase the strength and frequency of the cleaning particles colliding with the wall of the barrel, and the number of cleaning particles per unit volume in the water is more More, the greater the rotation speed of the inner tub is controlled, especially when the bottom wall of the inner tub is cleaned at a certain stage of drainage, at this time, the cleaning particles are concentrated in the vicinity of the bottom of the inner tub, and the concentration of the cleaning particles, that is, the amount of cleaning particles per unit volume in the water is the largest, and the drainage phase is the largest.
  • the barrel rotates at the highest speed, and the strength and frequency of the cleaning particles collide with the bottom wall of the barrel to the maximum, which better cleans the bottom wall of the barrel, realizes all-round cleaning of the barrel wall between the inner and outer barrels, improves the cleanliness of the barrel, and effectively improves the washing. Net rate.
  • the user can use the cleaning particles to clean the inner and outer barrels without leaving dirt and clean.
  • the washing water contains more foam. If the drum is turned at a high speed, it is easy to cause foam overflow and motor resistance.
  • the present invention comprehensively judges the concentration of the cleaning particles and whether the dewatering of the row is the washing row. Dehydration, reasonable control of the rotation speed of the inner barrel to avoid problems caused by foam overflow, and improve the safety factor.
  • the internal shifting of the inner barrel can be controlled to efficiently clean the inner and outer barrel walls and assist the collection of cleaning particles.
  • the drainage staying that is, the drain valve closing process and the high-speed rotating barrel operation, at this time, the cleaning particles flow with the water at high speed.
  • the barrel wall similar to the process of cleaning the oil drum with sand and water in daily life to achieve unexpected cleaning effect.
  • the invention adopts stopping the drainage control to control the inner barrel rotation when the cleaning particle concentration is high.
  • the cleaning particle concentration is high, while the drainage is controlled while the inner barrel is rotated, the efficiency of cleaning the particle cleaning barrel wall is lowered, which is due to drainage, Since the amount of water in the bucket is small, the cleaning particles will be affected by the drainage, reducing the frequency and strength of the frictional collision with the barrel wall.
  • the concentration of the cleaning particles is low, even if the drainage is performed, the range of the cleaning particles floating in the water is relatively large due to the relatively large amount of water. Larger, less affected by the bottom drainage, does not affect the cleaning of the barrel wall. Therefore, according to the concentration of cleaning particles in the barrel during the drainage process of the present invention, the closing stage of the drain valve is set to control the rotation speed of the inner barrel.
  • FIG. 1 is a schematic structural view of a self-cleaning washing machine of the present invention
  • Embodiment 2 is a flow chart of a method for controlling dehydration in a row according to Embodiment 1 of the present invention
  • FIG. 3 is a flow chart of a method for controlling dehydration in a second embodiment of the present invention.
  • FIG. 4 is a flow chart of a method for controlling dehydration in a third embodiment of the present invention.
  • Fig. 5 is a flow chart showing the method for controlling the dehydration in the fourth embodiment of the present invention.
  • the self-cleaning washing machine of the present invention comprises an outer tub 1 and an inner tub 2, and a cleaning granule 4 for cleaning the wall of the tub is provided in a space 3 between the inner wall of the outer tub 1 and the outer wall of the inner tub 2, and the bottom of the outer tub 1 is mounted
  • the drain valve 5 for cleaning the particles is collected.
  • the cleaning particles are lowered with the water level, and finally discharged into the drain valve 5 to be collected. After the next water inflow, the water is raised into the space 3 with the water level.
  • the change of the cleaning particle concentration in the space between the inner and outer barrels that is, the quantity of the cleaning particles per unit volume in the space changes with the water level
  • the washing particle concentration change in the washing machine corresponds to the inner barrel rotation speed.
  • the washing machine receives the drainage instruction, opens the drain valve; determines the quantity of the cleaning particles per unit volume in the water in the space; the washing machine controls the rotation speed of the inner barrel according to the concentration, and adjusts the frequency of friction and collision between the cleaning particles and the inner and outer barrel walls.
  • the amount of cleaning particles can be increased or decreased according to the user's demand. At this time, the amount of cleaning particles is no longer fixed, and the washing machine needs to re-determine the amount of cleaning particles.
  • the cleaning particles in the space are replaced before and after.
  • the water level corresponding to the same concentration will also change, and the cleanliness of the inner and outer barrel walls of the drainage process of the present invention is not only related to the rotational speed set by the inner tub, but also to the concentration of the cleaning particles at the water level. Therefore, the present invention controls the rotation speed of the inner tub according to the change of the concentration of the cleaning particles, and combines the two to control the cleaning of the inner and outer barrel walls by the cleaning particles.
  • the washing machine divides the dehydration process into at least two control stages according to the quantity of the cleaning particles per unit volume in the water in the space, each stage is provided with a different inner barrel rotation mode, and the more the unit volume of the cleaning volume per unit volume in the water, the inner barrel The higher the speed.
  • the washing machine selects the corresponding control stage according to the quantity of cleaning particles per unit volume in the water in the detection space, and controls the rotation of the inner barrel by the preset inner barrel rotation mode at this stage.
  • the control stage is 2-5, which is because the smaller the capacity, the smaller the water volume of the maximum water level, the faster the drainage speed, and the frequent fluctuation of the inner barrel speed in the short-time drainage process, reducing the service life of the motor.
  • the smaller the capacity of the washing machine the less the dirt may form on the wall of the barrel. During the washing process, the cleaning particles will basically clean the wall of the barrel.
  • the above arrangement is not essential. When the inner and outer barrels of the washing machine itself or other reasons cause the dirt on the barrel wall to be less, the number of stages set at the above stage can also be reduced.
  • the control method of the barrel rotation in one of the control stages in the above-mentioned dewatering process is to close the drain valve, control the inner barrel to rotate at a set speed, set a time, open the drain valve, control the inner barrel to rotate at another set speed, and determine the unit in the water.
  • the cleaning particle concentration there is also a control stage for cleaning the bottom wall of the inner and outer barrels, and the corresponding water level is located at the bottom of the inner barrel. In the height of the area.
  • the dehydration of the sub-discharge is a step of dehydration after washing, and if the dehydration is dehydration after washing, the drain valve is first closed. Control the inner barrel to rotate for a set time at a set speed, and then open the drain valve to control the inner barrel to rotate at another set speed; if the drain is not dehydrated after washing, first close the drain valve and control the inner barrel to at least two Rotate the set time for different speeds, then open the drain valve to control the inner barrel to rotate at another set speed.
  • the speed at which the inner tub rotates when the drain valve is closed is greater than the speed at which the inner tub rotates when the drain valve is opened.
  • the dehydration process of the invention comprises a control phase corresponding to a dehydration process.
  • the rotation speed of the inner barrel is a stepwise speed increasing process, which may be a constant rotation speed of each segment, or may be continuously accelerated in each segment, or the whole
  • the dehydration control method of the self-cleaning washing machine of this embodiment As shown in FIG. 2, the dehydration control method of the self-cleaning washing machine of this embodiment:
  • K5 corresponds to the empty bucket point determined by the washing machine water level sensor. When it is judged that the cleaning particle concentration reaches K5, it immediately enters the dehydration program. When the concentration of the cleaning particles is small, that is, when there is more water in the barrel, only the drainage does not rotate the barrel or the low-speed rotating barrel is selected, which can prevent the additional consumption of the power consumption of the motor.
  • the self-cleaning washing machine draining dehydration control method of this embodiment As shown in FIG. 3, the self-cleaning washing machine draining dehydration control method of this embodiment:
  • the self-cleaning washing machine draining dehydration control method of this embodiment As shown in FIG. 4, the self-cleaning washing machine draining dehydration control method of this embodiment:
  • the self-cleaning washing machine draining dehydration control method of this embodiment As shown in FIG. 5, the self-cleaning washing machine draining dehydration control method of this embodiment:
  • step (9) determine whether K ⁇ K2, and if so, proceed to the next step, if not, proceed to step (11);
  • K1 ⁇ K2 ⁇ K3 ⁇ K4 ⁇ K5 K1 ⁇ K2 ⁇ K3 ⁇ K4 ⁇ K5
  • V2 50-300 RPM, preferably 80-120 RPM,
  • V3 0-120 RPM, preferably 30-80
  • V4 0-50 RPM, preferably 0-30 RPM.

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

Abstract

一种自清洁洗衣机排脱水控制方法，该洗衣机内外桶之间的空间（3）内设有随水流运动清洗内桶（2）外壁和外桶（1）内壁的清洗颗粒（4），接收排水指令，打开排水阀（5）；判断空间（3）内水中单位体积清洗颗粒（4）的数量；控制内桶（2）的转速，调节清洗颗粒（4）与内外桶壁摩擦、碰撞的频率。洗衣机根据空间内水中单位体积清洗颗粒（4）的数量多少将排脱水过程分为至少两个控制阶段，每个阶段设有不同的内桶（2）转动方式，水中单位体积清洗颗粒（4）数量越多的阶段，内桶（2）转速越大。排脱水过程中，洗衣机根据检测空间（3）内水中单位体积清洗颗粒（4）的数量，选择对应的控制阶段。本发明控制方法简单，能够完全清除洗衣机桶壁污垢，保持洗涤环境清洁，杜绝二次污染，提高衣物洗净率。

Description

一种自清洁洗衣机排脱水控制方法 技术领域
本发明涉及洗衣机领域，具体是洗衣机的控制方法，尤其是一种自清洁洗衣机排脱水控制方法。
背景技术
现有洗衣机是通过电机驱动内桶底部的波轮以顺逆时针交替旋转实现带动衣物翻滚、旋转，使衣物与衣物、衣物与波轮、衣物与桶间相互摩擦而达到洗净衣物的目的。
洗衣时，水中含有各种固体微粒，如：水中的钙离子和碳酸钙结成的水垢、洗衣剂皂液中的游离物、被洗落的衣物纤维屑、人体蹭留在被洗衣物上的油渍蛋白质和各种有机残留物、由被洗衣物带入的细菌以及其他物质，形成悬浮液。由于扩散是无条件的绝对的，颗粒越小，扩散越严重。对于小于几微米的微粒，如病毒或蛋白质等，很容易扩散至洗衣机桶的夹层中，日积月累附着在洗衣机内桶外壁和外桶内壁上，形成通常所说的污垢。这些污垢会对衣物造成二次污染，威胁用户的健康。
基于上述情况，很多全自动洗衣机都搭载了专门用于净桶的程序，即桶清洗程序。申请号为CN200810061541.X的中国专利公开了两种全自动洗衣机桶清洗程序控制方法，两种方法的净桶原理都是利用离心力来冲洗污垢。方法一：在最后一次漂洗完成后，排水阀开启，排水开始，直到信号检测电路的水位控制器监控外桶内的水位达到第一水位；电脑程控器控制排水阀关闭，排水停止；电脑程控器控制马达通电，内桶旋转，到电脑程控器的时间控制器检测到第一设定时间；电脑程控器控制马达断电，内桶自由旋转，到电脑程控器的时间控制器检测到达第二设定时间；电脑程控器控制排水阀打开，排水开始，直到信号检测电路的水位控制器监控外桶内的水位到达第二设定水位；进入正常脱水程序。方法二：在最后一次漂洗完成后，排水阀开启，排水开始，直到信号检测电路的水位控制器监控外桶内的水位达到第一水位；电脑程控器控制马达通电，内桶旋转，直到信号检测电路的水位控制器监控外桶内的水位到达第二设定水位；电脑程控器控制马达断电，内桶自由旋转；进入正常脱水程序。
上述方案中方法一具有如下缺陷：
1、该方法仅在用户选择桶清洗程序，且最后一次排水时，进行桶洗净，清洗强度较差，并不能消除污垢形成的根源，即每次洗衣累积的污垢。
2、排水时，水位从第一设定水位打开排水阀后降至第二设定水位的过程中，桶是静止的，污水中的污垢仍能黏附在该段桶壁上，清洁不彻底。
3、该方法仅利用内桶带动水流的冲击力清洗桶壁，净桶效果较难保证。
方法二中解决了方法一的第2个缺陷，但第1、第3个缺陷仍然存在。
申请人之前研发了一种内外桶之间设有清洗颗粒的洗衣机，通过在衣物洗涤过程中水的流动带动清洗颗粒摩擦洗衣机内外桶壁,实现洗衣机内外桶之间的清洁。该方案解决了桶壁污垢的清洗问题，经过研究发现，普通洗衣机内外桶壁自上向下残留的污垢越来越多，上部桶壁污染较轻，下部污染较重，尤其是桶底壁，污染最严重。而内外桶间清洗颗粒在洗涤过程中，随水流运动的范围在内外桶周壁之间的时间较多，尤其是中部及以上区域，而在内外桶底之间及内外桶周壁之间下部的时间较少，因此，对于内外桶底壁和周壁下部的清洁度相对较弱。
申请人在申请号为CN201210188593.X的中国专利公开了一种具有自清洁功能洗衣机清洗颗粒的收集控制方法及洗衣机，该洗衣机内外桶之间设有随水流运动清洁内外桶间壁的清洗颗粒，在排水过程和/或甩干过程中，控制内桶运行不同的动作，将清洗颗粒冲到排水口内，被排水阀收集。在排水过程中，内桶转动，带动水流转动使清洗颗粒清洗内外桶壁，同时使卡在内外桶间的清洗颗粒落下，随水位下降，与水流一起流入排水口内，被排水阀收集。甩干阶段，控制内桶执行至少一次转刹车动作，使卡在内外桶间的清洗颗粒落下，利用衣物中甩出的水将其冲刷进入排水口内，被排水阀收集。但是该方案排水时，控制内桶低速转动，并不能带动清洗颗粒碰撞桶壁，仅是为了减少残留在内外桶之间的清洗颗粒，使得清洗颗粒能够完全被收集，减少脱水时导致的碰撞噪音，也不能加强对内外桶底壁和周壁下部的清洗。
有鉴于此特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足，提供一种能够完全清除洗衣机桶壁污垢，保持洗涤环境清洁，杜绝二次污染，提高衣物洗净率的自清洁洗衣机排脱水控制方法。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种自清洁洗衣机排脱水控制方法，该洗衣机内外桶之间的空间内设有随水流运动清洗内桶外壁和外桶内壁的清洗颗粒，
接收排水指令，打开排水阀；
判断空间内水中单位体积清洗颗粒的数量；
控制内桶的转速，调节清洗颗粒与内外桶壁摩擦、碰撞的频率。
进一步的，洗衣机根据空间内水中单位体积清洗颗粒的数量多少将排脱水过程分为至少两个控制阶段，每个阶段设有不同的内桶转动方式，水中单位体积清洗颗粒数量越多的阶段，内桶转速越大。
进一步的，排脱水过程中，洗衣机根据检测空间内水中单位体积清洗颗粒的数量，选择对应的控制阶段。
进一步的，一控制阶段内桶转动的控制方法为，关闭排水阀，控制内桶以设定转速转动设定时间后，打开排水阀，控制内桶以另一设定转速转动，并判断水中单位体积清洗颗粒的数量，当水中单位体积清洗颗粒的数量符合下一阶段对应的数量时，进入下一控制阶段。
进一步的，当判断空间内水中单位体积清洗颗粒的数量满足一设定条件时，进一步判断该次排脱水是否为洗涤后排脱水的步骤，根据是否为洗涤后排脱水的状态，调整内桶不同的转动方式。
进一步的，判断本次排脱水是洗涤后排脱水，关闭排水阀，控制内桶以一设定转速转动设定时间，打开排水阀，控制内桶以另一设定转速转动；
判断本次排脱水不是洗涤后排脱水，关闭排水阀，控制内桶以至少两种不同转速分别转动设定时间，打开排水阀，控制内桶以另一设定转速转动。
进一步的，排水阀关闭时控制内桶转动的速度大于排水阀打开时控制内桶转动的速度。
进一步的，本发明自清洁洗衣机排脱水控制方法：
(1)排水开始，打开排水阀，进入下一步；
(2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(6)，若否，则进入下一步；
(3)判断是否K≥K4，若是，则进入下一步，若否，则排水直至K≥K4，进入下一步；
(4)关闭排水阀，控制内桶以转速V1转动T1时间，进入下一步；
(5)打开排水阀，控制内桶以转速V4转动，直至K≥K5，进入下一步；
(6)执行脱水程序，至脱水结束。
上述控制内桶转速，V1＞V4，在内桶以转速V1转动的时间段内，清洗颗粒随水流激烈运动清洗桶壁，即使内桶停止以V1转速转动转换至转速V4转动，虽然水流转动相对平缓，但 由于惯性清洗颗粒仍可以摩擦清洗桶壁，而内桶以低速V4转动，可方便检测清洗颗粒浓度。
进一步的，上述方案的替换方案为，本发明自清洁洗衣机排脱水控制方法：
(1)排水开始，打开排水阀，进入下一步；
(2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(9)，若否，则进入下一步；
(3)判断是否K≥K4，若是，则进入下一步，若否，则进入步骤(6)；
(4)关闭排水阀，控制内桶以转速V1转动T1时间，进入下一步；
(5)打开排水阀，控制内桶以转速V4转动，直至K≥K5，进入步骤(9)；
(6)判断是否K≥K3，若是，则进入下一步，若否，则排水直至K≥K3，进入下一步；
(7)判断是否为洗涤后排脱水，若是，关闭排水阀，控制内桶以转速V2转动T3时间，进入下一步，若否，关闭排水阀，控制内桶分别以转速V2和V1各转动T2时间，进入下一步；
(8)打开排水阀，控制内桶以转速V4转动，直至K≥K4，进入步骤(4)；
(9)执行脱水程序，至脱水结束。
上述控制内桶转速，V1＞V2＞V4。若在洗涤后排脱水，则以相对低速V2转动，以避免泡沫溢出，提高安全性；若不是洗涤后排脱水，则采用两个不同的转速转动，既能提高清洗桶壁的效率，又能避免第一次漂洗后排脱水可能造成的泡沫溢出现象。
进一步的，上述方案的替换方案为，本发明自清洁洗衣机排脱水控制方法：
(1)排水开始，打开排水阀，进入下一步；
(2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(11)，若否，则进入下一步；
(3)判断是否K≥K4，若是，则进入下一步，若否，则进入步骤(6)；
(4)关闭排水阀，控制内桶以转速V1转动T1时间，进入下一步；
(5)打开排水阀，控制内桶以转速V4转动，直至K≥K5，进入步骤(11)；
(6)判断是否K≥K3，若是，则进入下一步，若否，则进入步骤(9)；
(7)判断是否为洗涤后排脱水，若是，关闭排水阀，控制内桶以转速V2转动T3时间，进入下一步，若否，关闭排水阀，控制内桶分别以转速V2和V1各转动T2时间，进入下一步；
(8)打开排水阀，控制内桶以转速V4转动，直至K≥K4，进入步骤(4)；
(9)判断是否K≥K2，若是，则进入下一步，若否，则排水直至K≥K2，进入下一步；
(10)控制内桶以转速V3转动，直至K≥K3，进入步骤(7)；
(11)执行脱水程序，至脱水结束。
上述控制内桶转速，V1＞V2＞V3＞V4。
进一步的，上述方案的替换方案为，本发明自清洁洗衣机排脱水控制方法：
(1)排水开始，打开排水阀，进入下一步；
(2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(13)，若否，则进入下一步；
(3)判断是否K≥K4，若是，则进入下一步，若否，则进入步骤(6)；
(4)关闭排水阀，控制内桶以转速V1转动T1时间，进入下一步；
(5)打开排水阀，控制内桶以转速V4转动，直至K≥K5，进入步骤(13)；
(6)判断是否K≥K3，若是，则进入下一步，若否，则进入步骤(9)；
(7)判断是否为洗涤后排脱水，若是，关闭排水阀，控制内桶以转速V2转动T3时间，进入下一步，若否，关闭排水阀，控制内桶分别以转速V2和V1各转动T2时间，进入下一步；
(8)打开排水阀，控制内桶以转速V4转动，直至K≥K4，进入步骤(4)；
(9)判断是否K≥K2，若是，则进入下一步，若否，则进入步骤(11)；
(10)控制内桶以转速V3转动，直至K≥K3，进入步骤(7)；
(11)判断是否K≥K1，若是，则进入下一步，若否，则排水直至K≥K1，进入下一步；
(12)控制内桶以转速V4转动，直至K≥K2，进入步骤(10)；
(13)执行脱水程序，至脱水结束。
上述四种具体的排脱水控制方法为根据洗衣机的容量设置，洗衣机容量越小，排脱水过程设置的控制阶段越少，即预设在洗衣机内作为控制内桶转速变化的空间内水中单位体积清洗颗粒数量的个数越少。
其中，K1＜K2＜K3＜K4＜K5，V1＞V2＞V3＞V4。
V1：120-300RPM，优选120-160RPM，
V2：50-300RPM，优选80-120RPM，
V3：0-120RPM，优选30-80，
V4：0-50RPM，优选0-30RPM。
预设在洗衣机空间内水中单位体积清洗颗粒数量K4对应的内桶转速控制阶段，为清洗内外桶底壁阶段，该阶段水位位于内桶底所在高度的区域。K5对应为洗衣机水位传感器判定的空桶点。在清洗颗粒浓度较小，即桶内水较多时，只排水不转桶或者选择低速转桶，可以防止电机功耗的额外消耗。
进一步的，确定洗衣机空间内清洗颗粒总量后，根据检测水位计算空间内水中单位体积清洗颗粒的数量，空间内水中单位体积清洗颗粒的数量K＝N/ΔV，N为内外桶之间空间内清洗颗粒的总数量，ΔV为内外桶之间空间内水的体积，ΔV＝αL，α为固定系数，L为水位。
洗衣机初始状态，放置的清洗颗粒数量需要输入在洗衣机内；洗衣机使用较长时间后，清洗颗粒会出现磨损或者污染较严重，需要更换新的清洗颗粒，当更换清洗颗粒后，同样需要输入清洗颗粒的数量。
进一步的，本发明脱水程序内桶的转速是阶段性增速过程，可以是各分段恒定转速，也可以是各分段内连续逐渐加速的，或者整个脱水过程时均匀加速的，优选为分段恒定的方式控制内桶转动脱水，避免内桶连续加速运动产生离心力将清洗颗粒从下部排水装置重新抽到内外桶之间碰撞桶壁而产生噪音。
采用上述技术方案后，本发明与现有技术相比具有以下有益效果。
本发明所述的自清洁洗衣机为一种具有在内外桶之间带有清洗颗粒清洁内外桶壁功能的洗衣机，该洗衣机在洗涤过程中，内外桶之间的水跟内桶中的水进行交换，形成水流，带动内外桶之间的清洗颗粒在水中游动，对内外桶壁进行碰撞摩擦，对内外桶壁附着物进行清理，阻止了污垢的产生，杜绝了细菌的滋生。
本发明洗衣机清洗颗粒不仅洗涤过程能对内外桶壁清洗，还能在每次排水时，也能实现对内外桶壁的清洗。根据清洗颗粒在内外桶之间的浓度采用不同的内桶转动方式，调整清洗颗粒碰撞桶底壁的强度和频率，提高了清洁率。本发明以改变排水的控制方法，使洗衣机内桶外侧及外桶内侧和底面得到清洗，去除残留污垢，保持衣物洗涤的内环境清洁。
本发明洗衣机在排水过程中，根据判断空间内水中单位体积清洗颗粒的数量调整内桶的运动方式，以增大清洗颗粒摩擦碰撞桶壁的强度和频率，当空间内水中单位体积清洗颗粒的数量越多，控制内桶的转速越大，尤其在排水至一定阶段清洗内桶底壁时，此时，清洗颗粒集中在内桶底附近区域，清洗颗粒的浓度即水中单位体积清洗颗粒的数量最大，排水阶段内 桶转速最高，清洗颗粒碰撞桶底壁的强度和频率均达到最大，更好的清洗了桶底壁，实现对内外桶之间桶壁的全方位清洗，提高了桶清洁度，有效提高了洗净率。用户排水的同时也能够利用清洗颗粒进行内外桶的清洁，不留污垢，干净放心。
在洗涤后脱水时，洗涤水中含有较多泡沫，若高速转桶，易造成泡沫溢出及电机阻转，本发明在排水过程中，综合判断清洗颗粒浓度大小及该次排脱水是否为洗涤后排脱水，合理控制内桶的转速，以避免泡沫溢出导致的问题，提高了安全系数。
排水时控制内桶阶段性变速转动可以高效的清洗内外桶壁同时可以辅助清洗颗粒的收集，尤其整个排水阶段中设置排水停留即排水阀关闭过程同时高速转桶的操作，此时清洗颗粒随水流高速击打桶壁，类似日常生活中用沙粒和水通过晃动清洗油桶的过程，达到意想不到的清洗效果。
本发明采用在清洗颗粒浓度较高时停止排水控制内桶转动，根据试验发现，若清洗颗粒浓度较高时一边排水一边控制内桶转动，清洗颗粒清洗桶壁的效率会降低，这是由于排水时，由于桶内水量少清洗颗粒会受排水的影响，减少了与桶壁摩擦碰撞的频率和强度，而清洗颗粒浓度较低时，即使排水，由于水量相对较多，清洗颗粒在水中浮动的范围也较大，受底部排水的影响也较少，并不会对桶壁的清洗带来影响，因此本发明排水过程中根据桶内清洗颗粒浓度，设置排水阀关闭阶段，控制内桶转速。
附图说明
图1是本发明自清洁洗衣机结构示意图；
图2是本发明实施例一中排脱水控制方法流程图；
图3是本发明实施例二中排脱水控制方法流程图；
图4是本发明实施例三中排脱水控制方法流程图；
图5是本发明实施例四中排脱水控制方法流程图。
具体实施方式
下面结合附图对本发明的具体实施方式作进一步详细的描述。
如图1所示，本发明自清洁洗衣机包括外桶1和内桶2，外桶1内壁和内桶2外壁之间的空间3内设有清洁桶壁的清洗颗粒4，外桶1底部安装一能够收集清洗颗粒的排水阀5，排水时，清洗颗粒随水位下降，最后排入排水阀5中被收集，下次进水后，再随水位升高进入空间3内。
本发明洗衣机在排脱水过程中，内外桶之间空间内清洗颗粒浓度的变化，即空间内在水中单位体积清洗颗粒的数量随着水位下降变化，洗衣机内设有清洗颗粒浓度变化与内桶转速对应的关系，洗衣机接收排水指令，打开排水阀；判断空间内水中单位体积清洗颗粒的数量；洗衣机根据该浓度大小对应控制内桶的转速，调节清洗颗粒与内外桶壁摩擦、碰撞的频率。
由于洗衣机初始状态，放置在洗衣机内外桶之间空间内的清洗颗粒数量是固定的，但是使用较长时间后，清洗颗粒会出现磨损或者污染较严重，需要更换新的清洗颗粒，因此，在未更换清洗颗粒后，空间内水中单位体积清洗颗粒的数量与水位有关，根据检测水位计算空间内水中单位体积清洗颗粒的数量，空间内水中单位体积清洗颗粒的数量K＝N/ΔV，N为内外桶之间空间内清洗颗粒的总数量，ΔV为内外桶之间空间内水的体积，ΔV＝αL，α为固定系数，L为水位。
但是，当更换清洗颗粒后，清洗颗粒的数量可以根据用户需求增减，此时，清洗颗粒的数量不再固定，洗衣机需要重新确定清洗颗粒的数量，排脱水过程中，空间内清洗颗粒更换前后同一浓度对应的水位也将变化，而本发明排水过程对内外桶壁的清洁度不仅与内桶设定的转速有关，还与该水位下清洗颗粒的浓度有关。因此，本发明根据清洗颗粒浓度的变化控制内桶转速，将两者结合，以控制清洗颗粒对内外桶壁的清洗。
具体的，洗衣机根据空间内水中单位体积清洗颗粒的数量多少将排脱水过程分为至少两个控制阶段，每个阶段设有不同的内桶转动方式，水中单位体积清洗颗粒数量越多的阶段，内桶转速越大。在排脱水过程中，洗衣机根据检测空间内水中单位体积清洗颗粒的数量，选择对应的控制阶段，以该阶段预设的内桶转动方式控制内桶转动。
洗衣机容量越小，排水时，空间内清洗颗粒浓度的变化范围越小，洗衣机在排脱水过程设置的控制阶段也越少。根据现有洗衣机的容量，控制阶段为2-5个，这是由于容量越小，其最大水位的水量越少，排水速度很快，排水过程若在短时间频繁变化内桶转速，降低电机使用寿命，其次，容量越小的洗衣机，桶壁形成污垢的可能也越少，在洗涤过程中，清洗颗粒基本会清洁干净桶壁。但是，上述设置方式并不是必须的，当洗衣机内外桶本身材料或其它原因导致桶壁附着污垢较少时，上述阶段设置的个数也可减少。
上述排脱水过程中其中一控制阶段内桶转动的控制方法为，关闭排水阀，控制内桶以设定转速转动设定时间后，打开排水阀，控制内桶以另一设定转速转动，并判断水中单位体积清洗颗粒的数量，当水中单位体积清洗颗粒的数量符合下一阶段对应的数量时，进入下一控制阶段。
对应清洗颗粒浓度还设有一清洗内外桶底壁的控制阶段，该阶段对应水位位于内桶底所 在高度的区域。
当判断空间内水中单位体积清洗颗粒的数量满足一设定条件时，进一步判断该次排脱水是否为洗涤后排脱水的步骤，若本次排脱水是洗涤后排脱水，则先关闭排水阀，控制内桶以一设定转速转动设定时间，然后再打开排水阀，控制内桶以另一设定转速转动；若本次排脱水不是洗涤后排脱水，则先关闭排水阀，控制内桶以至少两种不同转速分别转动设定时间，然后再打开排水阀，控制内桶以另一设定转速转动。排水阀关闭时控制内桶转动的速度大于排水阀打开时控制内桶转动的速度。
本发明排脱水过程包括一脱水程序对应的控制阶段，脱水程序中，内桶的转速是阶段性增速过程，可以是各分段恒定转速，也可以是各分段内连续逐渐加速的，或者整个脱水过程时均匀加速的，优选为分段恒定的方式控制内桶转动脱水，避免内桶连续加速运动产生离心力将清洗颗粒从下部排水装置重新抽到内外桶之间碰撞桶壁而产生噪音。
实施例一
如图2所示，本实施例自清洁洗衣机的排脱水控制方法：
(1)排水开始，打开排水阀，进入下一步；
(2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(6)，若否，则进入下一步；
(3)判断是否K≥K4，K4＜K5，若是，则进入下一步，若否，则排水直至K≥K4，进入下一步；
(4)关闭排水阀，控制内桶以转速V1＝200RPM转动2S时间，进入下一步；
(5)打开排水阀，控制内桶以转速V4＝20RPM转动，直至K≥K5，进入下一步；
(6)执行脱水程序，至脱水结束。
K5对应为洗衣机水位传感器判定的空桶点，判断清洗颗粒浓度达到K5则立即进入脱水程序。在清洗颗粒浓度较小，即桶内水较多时，只排水不转桶或者选择低速转桶，可以防止电机功耗的额外消耗。
实施例二
如图3所示，本实施例自清洁洗衣机排脱水控制方法：
(1)排水开始，打开排水阀，进入下一步；
(2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(9)， 若否，则进入下一步；
(3)判断是否K≥K4，若是，则进入下一步，若否，则进入步骤(6)；
(4)关闭排水阀，控制内桶以转速V1＝160RPM转动3S时间，进入下一步；
(5)打开排水阀，控制内桶以转速V4＝30RPM转动，直至K≥K5，进入步骤(9)；
(6)判断是否K≥K3，若是，则进入下一步，若否，则排水直至K≥K3，进入下一步；
(7)判断是否为洗涤后排脱水，若是，关闭排水阀，控制内桶以转速V2＝100RPM转动4S时间，进入下一步，若否，关闭排水阀，控制内桶分别以转速V2＝100RPM和V1＝160RPM各转动2S时间，进入下一步；
(8)打开排水阀，控制内桶以转速V4＝30RPM转动，直至K≥K4，进入步骤(4)；
(9)执行脱水程序，至脱水结束。
实施例三
如图4所示，本实施例自清洁洗衣机排脱水控制方法：
(1)排水开始，打开排水阀，进入下一步；
(2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(11)，若否，则进入下一步；
(3)判断是否K≥K4，若是，则进入下一步，若否，则进入步骤(6)；
(4)关闭排水阀，控制内桶以转速V1＝150RPM转动2S时间，进入下一步；
(5)打开排水阀，控制内桶以转速V4＝20RPM转动，直至K≥K5，进入步骤(11)；
(6)判断是否K≥K3，若是，则进入下一步，若否，则进入步骤(9)；
(7)判断是否为洗涤后排脱水，若是，关闭排水阀，控制内桶以转速V2＝80RPM转动5S时间，进入下一步，若否，关闭排水阀，控制内桶分别以转速V2＝80RPM和V1＝150RPM各转动3S时间，进入下一步；
(8)打开排水阀，控制内桶以转速V4＝20RPM转动，直至K≥K4，进入步骤(4)；
(9)判断是否K≥K2，若是，则进入下一步，若否，则排水直至K≥K2，进入下一步；
(10)控制内桶以转速V3＝50RPM转动，直至K≥K3，进入步骤(7)；
(11)执行脱水程序，至脱水结束。
实施例四
如图5所示，本实施例自清洁洗衣机排脱水控制方法：
(1)排水开始，打开排水阀，进入下一步；
(2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(13)，若否，则进入下一步；
(3)判断是否K≥K4，若是，则进入下一步，若否，则进入步骤(6)；
(4)关闭排水阀，控制内桶以转速V1＝120RPM转动3S时间，进入下一步；
(5)打开排水阀，控制内桶以转速V4＝10RPM转动，直至K≥K5，进入步骤(13)；
(6)判断是否K≥K3，若是，则进入下一步，若否，则进入步骤(9)；
(7)判断是否为洗涤后排脱水，若是，关闭排水阀，控制内桶以转速V2＝60RPM转动6S时间，进入下一步，若否，关闭排水阀，控制内桶分别以转速V2＝60RPM和V1＝120RPM各转动3S时间，进入下一步；
(8)打开排水阀，控制内桶以转速V4＝10RPM转动，直至K≥K4，进入步骤(4)；
(9)判断是否K≥K2，若是，则进入下一步，若否，则进入步骤(11)；
(10)控制内桶以转速V3＝50RPM转动，直至K≥K3，进入步骤(7)；
(11)判断是否K≥K1，若是，则进入下一步，若否，则排水直至K≥K1，进入下一步；
(12)控制内桶以转速V4＝10RPM转动，直至K≥K2，进入步骤(10)；
(13)执行脱水程序，至脱水结束。
上述实施例中，K1＜K2＜K3＜K4＜K5，V1＞V2＞V3＞V4。
V1：120-300RPM，优选120-160RPM，
V2：50-300RPM，优选80-120RPM，
V3：0-120RPM，优选30-80，
V4：0-50RPM，优选0-30RPM。
上述实施例中的实施方案仅仅是对本发明的优选实施例进行描述，上述实施例中的各内桶转动参数并非对本发明的构思和范围进行限定，在不脱离本发明设计思想的前提下，本领域中专业技术人员对本发明的技术方案作出的各种变化和改进，均属于本发明的保护范围。

Claims (12)

  1. 一种自清洁洗衣机排脱水控制方法，该洗衣机内外桶之间的空间内设有随水流运动清洗内桶外壁和外桶内壁的清洗颗粒，其特征在于：
    接收排水指令，打开排水阀；
    判断空间内水中单位体积清洗颗粒的数量；
    控制内桶的转速，调节清洗颗粒与内外桶壁摩擦、碰撞的频率。
  2. 根据权利要求1所述的一种自清洁洗衣机排脱水控制方法，其特征在于：洗衣机根据空间内水中单位体积清洗颗粒的数量多少将排脱水过程分为至少两个控制阶段，每个阶段设有不同的内桶转动方式，水中单位体积清洗颗粒数量越多的阶段，内桶转速越大。
  3. 根据权利要求2所述的一种自清洁洗衣机排脱水控制方法，其特征在于：排脱水过程中，洗衣机根据检测空间内水中单位体积清洗颗粒的数量，选择对应的控制阶段。
  4. 根据权利要求2所述的一种自清洁洗衣机排脱水控制方法，其特征在于：一控制阶段内桶转动的控制方法为，关闭排水阀，控制内桶以设定转速转动设定时间后，打开排水阀，控制内桶以另一设定转速转动，并判断水中单位体积清洗颗粒的数量，当水中单位体积清洗颗粒的数量符合下一阶段对应的数量时，进入下一控制阶段。
  5. 根据权利要求1所述的一种自清洁洗衣机排脱水控制方法，其特征在于：当判断空间内水中单位体积清洗颗粒的数量满足一设定条件时，进一步判断该次排脱水是否为洗涤后排脱水的步骤，根据是否为洗涤后排脱水的状态，调整内桶不同的转动方式。
  6. 根据权利要求5所述的一种自清洁洗衣机排脱水控制方法，其特征在于：判断本次排脱水是洗涤后排脱水，关闭排水阀，控制内桶以一设定转速转动设定时间，打开排水阀，控制内桶以另一设定转速转动；
    判断本次排脱水不是洗涤后排脱水，关闭排水阀，控制内桶以至少两种不同转速分别转动设定时间，打开排水阀，控制内桶以另一设定转速转动。
  7. 根据权利要求4或6所述的一种自清洁洗衣机排脱水控制方法，其特征在于：排水阀关闭时控制内桶转动的速度大于排水阀打开时控制内桶转动的速度。
  8. 根据权利要求1所述的一种自清洁洗衣机排脱水控制方法，其特征在于：
    (1)排水开始，打开排水阀，进入下一步；
    (2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(6)，若否，则进入下一步；
    (3)判断是否K≥K4，若是，则进入下一步，若否，则排水直至K≥K4，进入下一步；
    (4)关闭排水阀，控制内桶以转速V1转动T1时间，进入下一步；
    (5)打开排水阀，控制内桶以转速V4转动，直至K≥K5，进入下一步；
    (6)执行脱水程序，至脱水结束。
  9. 根据权利要求1所述的一种自清洁洗衣机排脱水控制方法，其特征在于：
    (1)排水开始，打开排水阀，进入下一步；
    (2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(9)，若否，则进入下一步；
    (3)判断是否K≥K4，若是，则进入下一步，若否，则进入步骤(6)；
    (4)关闭排水阀，控制内桶以转速V1转动T1时间，进入下一步；
    (5)打开排水阀，控制内桶以转速V4转动，直至K≥K5，进入步骤(9)；
    (6)判断是否K≥K3，若是，则进入下一步，若否，则排水直至K≥K3，进入下一步；
    (7)判断是否为洗涤后排脱水，若是，关闭排水阀，控制内桶以转速V2转动T3时间，进入下一步，若否，关闭排水阀，控制内桶分别以转速V2和V1各转动T2时间，进入下一步；
    (8)打开排水阀，控制内桶以转速V4转动，直至K≥K4，进入步骤(4)；
    (9)执行脱水程序，至脱水结束。
  10. 根据权利要求1所述的一种自清洁洗衣机排脱水控制方法，其特征在于：
    (1)排水开始，打开排水阀，进入下一步；
    (2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(11)，若否，则进入下一步；
    (3)判断是否K≥K4，若是，则进入下一步，若否，则进入步骤(6)；
    (4)关闭排水阀，控制内桶以转速V1转动T1时间，进入下一步；
    (5)打开排水阀，控制内桶以转速V4转动，直至K≥K5，进入步骤(11)；
    (6)判断是否K≥K3，若是，则进入下一步，若否，则进入步骤(9)；
    (7)判断是否为洗涤后排脱水，若是，关闭排水阀，控制内桶以转速V2转动T3时间，进入下一步，若否，关闭排水阀，控制内桶分别以转速V2和V1各转动T2时间，进入下一 步；
    (8)打开排水阀，控制内桶以转速V4转动，直至K≥K4，进入步骤(4)；
    (9)判断是否K≥K2，若是，则进入下一步，若否，则排水直至K≥K2，进入下一步；
    (10)控制内桶以转速V3转动，直至K≥K3，进入步骤(7)；
    (11)执行脱水程序，至脱水结束。
  11. 根据权利要求1所述的一种自清洁洗衣机排脱水控制方法，其特征在于：
    (1)排水开始，打开排水阀，进入下一步；
    (2)判断空间内水中单位体积清洗颗粒的数量K，是否K≥K5，若是，则进入步骤(13)，若否，则进入下一步；
    (3)判断是否K≥K4，若是，则进入下一步，若否，则进入步骤(6)；
    (4)关闭排水阀，控制内桶以转速V1转动T1时间，进入下一步；
    (5)打开排水阀，控制内桶以转速V4转动，直至K≥K5，进入步骤(13)；
    (6)判断是否K≥K3，若是，则进入下一步，若否，则进入步骤(9)；
    (7)判断是否为洗涤后排脱水，若是，关闭排水阀，控制内桶以转速V2转动T3时间，进入下一步，若否，关闭排水阀，控制内桶分别以转速V2和V1各转动T2时间，进入下一步；
    (8)打开排水阀，控制内桶以转速V4转动，直至K≥K4，进入步骤(4)；
    (9)判断是否K≥K2，若是，则进入下一步，若否，则进入步骤(11)；
    (10)控制内桶以转速V3转动，直至K≥K3，进入步骤(7)；
    (11)判断是否K≥K1，若是，则进入下一步，若否，则排水直至K≥K1，进入下一步；
    (12)控制内桶以转速V4转动，直至K≥K2，进入步骤(10)；
    (13)执行脱水程序，至脱水结束。
  12. 根据权利要求1-11任一所述的一种自清洁洗衣机排脱水控制方法，其特征在于：确定洗衣机空间内清洗颗粒总量后，根据检测水位计算空间内水中单位体积清洗颗粒的数量，空间内水中单位体积清洗颗粒的数量K＝N/ΔV，N为内外桶之间空间内清洗颗粒的总数量，ΔV为内外桶之间空间内水的体积，ΔV＝αL，α为固定系数，L为水位。
PCT/CN2016/103557 2015-11-11 2016-10-27 一种自清洁洗衣机排脱水控制方法 WO2017080364A1 (zh)

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