WO2022105583A1 - 一种滚筒洗衣机及其控制方法 - Google Patents

一种滚筒洗衣机及其控制方法 Download PDF

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Publication number
WO2022105583A1
WO2022105583A1 PCT/CN2021/127930 CN2021127930W WO2022105583A1 WO 2022105583 A1 WO2022105583 A1 WO 2022105583A1 CN 2021127930 W CN2021127930 W CN 2021127930W WO 2022105583 A1 WO2022105583 A1 WO 2022105583A1
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WIPO (PCT)
Prior art keywords
foam
door
washing machine
feeding port
drum
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PCT/CN2021/127930
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English (en)
French (fr)
Inventor
赵志强
许升
Original Assignee
青岛海尔滚筒洗衣机有限公司
海尔智家股份有限公司
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Application filed by 青岛海尔滚筒洗衣机有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Publication of WO2022105583A1 publication Critical patent/WO2022105583A1/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
    • D06F21/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement 
    • D06F21/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement  about a horizontal axis
    • D06F21/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement  about a horizontal axis within an enclosing receptacle
    • 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
    • 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
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • 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
    • D06F37/26—Casings; Tubs
    • 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
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • 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 
    • 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
    • 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
    • D06F2105/54—Changing between normal operation mode and special operation modes, e.g. service mode, component cleaning mode or stand-by mode

Definitions

  • the present invention relates to the technical field of laundry treatment equipment, in particular to a drum washing machine and a control method thereof.
  • the drum washing machine is one of the more commonly used household appliances in people's daily life.
  • the use of the drum washing machine brings convenience to people's life.
  • the outer drum holds water
  • the inner drum rotates for washing
  • the inner drum wall is provided with holes for feeding washing water into the inner drum or for dehydrating the clothes in the inner drum.
  • the flow between the inner and outer cylinders will lead to the accumulation of dirt and scale between the inner and outer cylinders, causing a large number of bacteria to multiply, causing secondary pollution to the clothes, and seriously threatening the health of consumers.
  • the filling of the water in the space causes useless water waste, therefore, people design the non-porous inner drum washing machine.
  • the inner drum of the non-porous inner drum drum washing machine is no longer provided with a water permeable hole communicating with the outer drum.
  • the inner cylinder is provided with a normally closed drainage hole, and a normally closed sealing valve is installed on the drainage hole, and the sealing valve can open the drainage hole under the action of centrifugal force for centrifugal drainage.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a drum washing machine and a control method thereof that can timely and efficiently find out whether there is foam at the clothes feeding port, so as to solve the problem that the existing drum washing machine produces in the washing process.
  • a large amount of foam is accumulated at the clothes feeding port, causing a problem that a large amount of foam overflows from the clothes feeding port or from the gap between the clothes feeding port and the machine door.
  • the present invention adopts the following technical solutions:
  • a front-loading washing machine comprising:
  • the inner cylinder is arranged in the outer casing, and the outer casing is formed with a clothes feeding port corresponding to the cylinder opening of the inner cylinder;
  • the foam detection device is arranged in the casing and is used for detecting the foam at the clothes injection port.
  • the door which can be opened and closed, is installed on the clothes feeding port;
  • the inner drum door is openably and closably installed on the drum opening of the inner drum, and when the inner drum door is closed, it forms an independent washing chamber together with the inner drum;
  • the foam detection device is arranged between the machine door and the inner cylinder door.
  • the foam detection device is a foam sensor arranged between the machine door and the inner cylinder door; preferably, the foam sensor is arranged at a position close to the horizontal centerline of the machine door.
  • it also includes an outer cylinder coaxially arranged outside the inner cylinder, and an observation window pad connected between the cylinder opening of the outer cylinder and the clothes throwing opening, and the foam sensor is arranged on the observation window pad.
  • Another object of the present invention also provides a control method of the drum washing machine with any of the above:
  • the washing machine detects the foam at the clothes feeding port through the foam detection device, and controls whether to start defoaming measures according to the detection result.
  • the inner cylinder is controlled to reduce the rotation speed to eliminate the foam at the clothes feeding port.
  • the inner cylinder is controlled to stop rotating, so as to eliminate the foam at the clothes feeding port.
  • control the inner cylinder to reduce the rotational speed/stop rotating for a set time and then resume normal rotation
  • the inner drum is controlled to return to normal rotation.
  • the foam sensor when the foam sensor detects that there is foam at the clothes feeding port or the amount of foam exceeds the set value, it will control the water to be fed into the inner cylinder, and then drain the clothes by centrifugal drainage.
  • the inlet water is discharged to the outer cylinder, and the above steps are performed cyclically.
  • a spray device is provided on the outer cylinder and/on the door and/or on the observation window pad.
  • the spray device is activated. Spray between the inner and outer drums and/or between the inner drum door and the machine door to eliminate foam at the laundry opening.
  • the present invention has the following beneficial effects compared with the prior art:
  • the drum washing machine provided by the present invention detects the foam at the clothes feeding port through the provided foam detection device, and takes defoaming measures in time when the foam is detected, which solves the problem that a large amount of foam is accumulated in the clothes feeding port during the washing process. At the same time, it avoids the phenomenon that a large amount of foam exists when the user opens the door, which affects the user experience.
  • the foam detection device is a foam sensor arranged between the inner cylinder door and the machine door, or on the observation window pad, which can timely and efficiently detect and prevent the foam from overflowing to the clothing inlet, and the foam detection
  • the device is simple in structure, low in cost and easy to use and popularize.
  • the foam sensor detects that there is foam at the injection port or between the inner drum door and the machine door or the amount of foam exceeds the set value, it will reduce the rotation speed of the inner drum or stop the rotation. It solves the problem that the centrifugal water in the outer cylinder is more likely to generate foam under the stirring of the high-speed rotating inner cylinder, and effectively solves the problem of foam accumulation and overflow at the clothes feeding port.
  • the foam sensor detects that there is foam at the injection port or between the inner drum door and the machine door or the amount of foam exceeds the set value, it controls the water supply to the inner drum, and then drains the water through centrifugal drainage.
  • the inlet water is discharged to the outer cylinder to reduce the detergent concentration of the centrifugal water thrown out of the inner cylinder, which plays the role of diluting and destroying the foam in the outer cylinder, and effectively solves the problem of foam accumulation and overflow at the clothes feeding port.
  • the spray device when the foam sensor detects that there is foam at the clothes feeding port or the amount of foam exceeds the set value, the spray device is activated to spray between the inner and outer drums and/or between the inner drum door and the machine door.
  • the foam at the clothes feeding port is eliminated by spraying, which effectively solves the problem of foam accumulation and overflow at the clothes feeding port, and the control is simpler and more convenient.
  • FIG. 1 is a schematic structural diagram of a drum washing machine in an embodiment of the present invention
  • Fig. 2 is another structural schematic diagram of the drum washing machine in the embodiment of the present invention.
  • Fig. 3 is the control method schematic diagram of the drum washing machine in the embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the first/second defoaming measure control method in the embodiment of the present invention.
  • Fig. 5 is the schematic diagram of the third defoaming measure control method in the embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the fourth defoaming measure control method in the embodiment of the present invention.
  • this example provides a drum washing machine, comprising: an outer casing 2; an inner tub 1, which is arranged in the outer casing 2, and the outer casing 2 is formed with a clothes feeding port corresponding to the cylinder opening of the inner tub 1;
  • the detection device is arranged in the casing 2 and is used for detecting the foam at the clothes injection port.
  • the foam detection device is provided to detect the foam at the clothes feeding port, which effectively solves the problem that a large amount of foam is accumulated at the clothes feeding port during the washing process of the existing drum washing machine, resulting in a large amount of foam from the clothes feeding port or the clothes feeding port. The problem of overflowing from the gap between the laundry inlet and the door.
  • the washing machine provided in this embodiment may be a common drum washing machine with washing water/rinsing water between the inner and outer drums, and the foam detection device is used to detect the foam at the clothes feeding port of the common drum washing machine.
  • the present embodiment provides a front-loading drum washing machine with a non-porous inner drum, and the foam detection device is used to detect the foam at the clothes feeding port of the non-porous inner drum washing machine.
  • the non-porous inner tub washing machine provided by this embodiment has a simple structure, and can greatly reduce the washing water consumption of the washing machine without filling the washing/rinsing water between the inner tub 1 and the outer tub 3, and avoid the inner tub 1 and the outer tub.
  • the possibility of dirt adhesion between 3 greatly improves user health and user experience, and greatly saves water resources.
  • the outer shell 2 is provided with an inner cylinder 1, which is used to independently hold washing water when washing clothes.
  • the dehydration hole is provided with a normally closed sealing valve, and the sealing valve can open the dehydration hole under the action of centrifugal force for centrifugal drainage.
  • the housing 2 includes: an upper panel, a front panel, a back panel and a bottom panel, and a cylinder opening corresponding to the inner cylinder 1 on the front panel is formed with a clothes drop port for taking and placing clothes, and the washing machine further includes a A foam detection device used in the casing 2 to detect the foam at the clothes injection opening.
  • the inner cylinder door 11 which can be opened and closed on the cylinder opening of the inner cylinder 1.
  • the inner cylinder door 11 When the inner cylinder door 11 is closed, it is common with the inner cylinder 1.
  • An independent washing chamber is formed, so that the inner tub 1 is a sealed cabin structure, and the inner tub 1 independently holds washing water when washing clothes.
  • the foam detection device is arranged between the machine door 21 and the inner cylinder door 11 .
  • the foam detection device provided between the machine door 21 and the inner drum door 11 effectively solves the problem that the existing drum washing machine without a hole inner drum, during centrifugal drainage, the washing water in the inner drum 1 Or the rinsing water collides with the surface of the outer cylinder when it is beaten at a high speed, and the centrifugal water contains a high concentration of detergent, and under the beating action of centrifugal force and the stirring of the high-speed rotation of the inner cylinder 1, a large amount of water will be generated in the outer cylinder 3.
  • the problem is that a large amount of foam accumulates between the inner drum door 11 and the machine door 21 or overflows from the clothes injection port.
  • the foam detection device is a foam sensor 4 disposed between the machine door 21 and the inner cylinder door 11 , and the foam sensor 4 is used to detect whether there is foam and/or the presence of foam at the clothes delivery opening. amount of foam.
  • the foam sensor 4 can be an electrode sensor or other existing foam sensors 4 for detecting foam, such as a turbidity sensor/transmittance sensor capable of detecting the light transmittance of foam.
  • the foam detection device in this embodiment adopts the foam sensor 4, which is simple in structure, low in cost, and easy to use and popularize.
  • the foam sensor 4 is arranged at a position close to the horizontal centerline of the machine door 21 .
  • the foam sensor 4 By arranging the foam sensor 4 at a position close to the horizontal centerline of the machine door 21 , compared to the position at the top or the lowest position On the one hand, it can more accurately detect the overall foam situation at the clothes feeding port, and on the other hand, it can prevent lint impurities from accumulating on the foam sensor 4 and affect the measurement accuracy of the foam sensor 4 .
  • the foam sensor 4 can be fixed on the inner side of the machine door 21, preferably, the foam sensor 4 is fixedly supported by a bracket at the middle position between the inner cylinder door 11 and the machine door 21, so that when When the foam spreads to the position between the inner cylinder door 11 and the machine door 21, the foam sensor 4 can detect the foam, and timely prevent the foam from spreading to the clothes feeding port, overflowing from the clothes feeding port, and causing a safety accident.
  • the outer casing 2 has an outer cylinder 3 inside, and the outer cylinder 3 is coaxially arranged outside the inner cylinder 1 .
  • the outer cylinder 3 has a central mounting hole, and the bearing is installed and fixed.
  • the inner cylinder 1 is fastened with a transmission shaft 61, and the transmission shaft 61 passes through the bearing and is connected and fixed with the driving motor 6.
  • the inner cylinder 1 is in the driving motor. Rotate under the drive of 6 to perform washing or dehydration programs.
  • the foam sensor 4 can be arranged on the inner wall of the outer cylinder 3 near the cylinder mouth of the outer cylinder 3. By arranging the foam sensor 4 at the cylinder mouth of the outer cylinder 3, when the foam spreads to the cylinder mouth of the inner cylinder 1 When the position of the foam sensor 4 is reached, the foam sensor 4 can detect the existence of foam, so that the washing machine can have more sufficient time to carry out defoaming measures and reduce the probability that the foam may overflow from the clothes feeding port.
  • the washing machine also includes an observation window pad 5 connected between the barrel opening of the outer tub 3 and the clothes drop opening.
  • the clothes feeding port is in a sealed connection with the outer tub 3 .
  • the foam sensor 4 is arranged on the observation window pad 5 , and the foam sensor 4 is installed on the inner peripheral side of the observation window pad 5 . Since the observation window pad 5 is located between the inner cylinder door 11 and the machine door 21 , installing the foam sensor 4 on the observation window pad 5 can timely detect whether there is foam between the inner cylinder door 11 and the machine door 21 . and information such as the amount of foam, so as to prevent the user from seeing a large amount of foam accumulating between the inner cylinder door 11 and the door 21 when opening the door 21, which affects the user experience. At the same time, the foam sensor 4 is arranged on the observation window pad 5 between the inner cylinder door 11 and the machine door 21, which also effectively blocks the possibility of the foam overflowing from the clothes feeding port.
  • the observation window pad 5 is provided with an installation position for installing the foam sensor 4, the installation position is an accommodation groove in the observation window pad 5, and the foam sensor 4 is embedded and installed in the container. put in the slot.
  • the installation position of the foam sensor 4 is set at a position on the observation window pad 5 close to the rotation axis of the inner cylinder 1, and the foam sensor 4 is installed at the middle height of the entire observation window pad 5.
  • the top or bottom part of the window pad 5, on the one hand can more accurately detect the overall foam condition between the inner cylinder door 11 and the door 21, and on the other hand, can prevent lint and impurities from accumulating on the foam sensor 4 and affecting the foam sensor 4. measurement accuracy.
  • the foam detection device is provided between the inner drum door 11 and the machine door 21, or the foam sensor 4 on the observation window pad 5, which can timely and efficiently detect and prevent the foam from overflowing to the clothes feeding port. .
  • a spray device for eliminating foam at the clothes feeding port is also provided at the clothes feeding port.
  • the spraying device includes a plurality of spraying heads spaced along the opening of the outer cylinder 3 or the circumferential direction of the observation window pad 5; or, the spraying device has a rotatable rotation Sprinkler.
  • the spraying device may be arranged at the opening of the outer cylinder 3 or on the door 21 .
  • the spray device is arranged above the observation window pad 5; the spray device includes a spray pipe for water inlet, and the water outlet end of the spray pipe is provided with a spray pipe
  • the shower nozzle, the water outlet end of the shower nozzle is connected to the observation window pad 5, the observation window pad 5 is provided with a spray interface, and the spray nozzle extends into the spray interface.
  • the control starts the spraying device, and the inner drum door 11 and the machine door 21 are controlled to be activated. Spray in between to remove foam from the laundry opening.
  • this embodiment also provides a control method with the above-mentioned drum washing machine: the washing machine detects the foam at the clothes feeding port through the foam detection device, and controls whether to start defoaming measures according to the detection result.
  • the foam sensor 4 detects that there is foam at the clothes feeding port of the washing machine, or detects that the amount of foam exceeds the set value, the detection result is fed back to the control unit of the washing machine, and the control unit of the washing machine starts defoaming measures to eliminate the clothes feeding port. of bubbles.
  • the drum washing machine provided in this embodiment by adopting the above control method, effectively solves the problem that a large amount of foam is generated during the washing process and accumulates at the clothes feeding port, resulting in a large amount of foam from the clothes feeding port or between the clothes feeding port and the door 21 .
  • the problem of overflowing from the gap is avoided, and the phenomenon that the user sees a large amount of bubbles when opening the door 21, which affects the user experience, is avoided.
  • the following four defoaming measures are used to defoam the foam at the clothes feeding port.
  • the first defoaming measure is the first defoaming measure
  • the inner cylinder 4 is controlled to reduce the rotation speed to eliminate the foam at the clothes feeding port.
  • the rotation speed of the inner cylinder 4 By controlling the rotation speed of the inner cylinder 4 to decrease, the influence of the defoaming measures on the washing process can be minimized, and the centrifugal water in the outer cylinder 2 can be effectively relieved from generating a large amount of foam under the stirring of the high-speed rotation of the inner cylinder 4. The phenomenon.
  • the defoaming measures in this embodiment are mainly aimed at the situation where the amount of foam at the clothes feeding port is small.
  • V 2 >V 1 > 0 the above measures are taken for defoaming treatment.
  • the second defoaming measure is the second defoaming measure
  • the inner cylinder 1 is controlled to stop rotating to eliminate the foam at the clothes feeding port.
  • the centrifugal water in the outer cylinder 3 will not generate a large amount of foam due to the stirring of the inner cylinder 1, thereby eliminating the foam at the clothes feeding port, and the defoaming effect of this defoaming measure is more timely. Efficient.
  • the defoaming measures in this embodiment are mainly aimed at the situation where the amount of foam is relatively large.
  • the foam sensor 4 detects that the amount of foam at the clothes feeding port exceeds the set value V 2
  • the inner cylinder 1 is controlled to stop rotating, wherein the said The value of V 2 is larger than that of V 1 in the first defoaming measure.
  • the defoaming measure of this embodiment has stronger defoaming force, and can eliminate a large amount of foam accumulated at the clothes feeding port in a timely and efficient manner.
  • the inner cylinder 1 when the inner cylinder 1 is controlled to reduce the rotational speed/stop rotating for a set time and then resume normal rotation; or, when the foam sensor 4 detects that the foam at the clothes injection port has When it is eliminated or the foam content is lower than the set value, the inner cylinder 1 is controlled to return to normal rotation.
  • the inner cylinder 1 when it is determined that the foam sensor 4 detects that there is foam at the clothes feeding port and the amount of foam is lower than V 1 , or when the amount of foam is between V 1 and V 2 , the inner cylinder 1 is controlled to reduce the rotational speed to N 1 , and when the set time t 1 is reached, the inner cylinder 1 is controlled to return to the normal rotation speed N 0 , where N 0 >N 1 .
  • the inner cylinder is controlled to return to the normal rotation speed N 0 , and the V 1 >V 3 >0.
  • the inner cylinder 1 When it is determined that the foam sensor 4 detects that there is foam at the clothes feeding port and the amount of foam is greater than V 2 , the inner cylinder 1 is controlled to stop rotating, and when the set time t 2 is reached, the inner cylinder 1 is controlled to return to the normal rotation speed N 0 to rotate .
  • the inner cylinder 1 when it is determined that the foam sensor 4 detects that the amount of foam at the clothes feeding port is greater than V 2 , the inner cylinder 1 is controlled to stop rotating, and when the foam sensor 4 detects the amount of foam at the clothes feeding port, the inner cylinder 1 is controlled to stop rotating.
  • the foam content is lower than the set value V1
  • the inner cylinder 1 is controlled to rotate at the rotation speed N1 for t1 time and then returns to the normal rotation speed N0 to rotate, or, when the foam sensor 4 detects that the foam at the clothes feeding port has been completely eliminated, or
  • the inner cylinder 1 is controlled to return to normal rotation speed N 0 .
  • the foam sensor 4 when the foam sensor 4 detects that there is foam at the injection port or between the inner tub door 11 and the machine door 21 or the amount of foam exceeds the set value, it will reduce the rotation speed of the inner tub 1 or stop the rotation by using a
  • the method solves the problem that the centrifugal water in the outer cylinder 2 is more likely to generate foam under the stirring of the high-speed rotating inner cylinder 1, and effectively solves the problem of accumulation and overflow of foam at the clothes feeding port.
  • the third defoaming measure is the third defoaming measure.
  • the foam sensor 4 detects that there is foam at the clothes feeding port or the amount of foam exceeds the set value, it controls the water to be fed into the inner tub 1, and then passes through the The inlet water is discharged to the outer cylinder 3 by means of centrifugal drainage, and the above steps are performed cyclically.
  • the washing machine can be controlled to return to normal operation after n times of "water inlet-centrifugal drainage" steps, where n is the set value. Or, when it is judged that the foam at the clothes feeding port or between the inner tub door 11 and the machine door 21 has been eliminated, or the amount of foam is lower than the set value V3 , the washing machine is controlled to resume normal operation.
  • the foam sensor 4 when the foam sensor 4 detects that there is foam at the injection port or between the inner tub door 11 and the machine door 21 or the amount of foam exceeds the set value, it controls the water to be fed into the inner tub 1, and then passes the centrifugal The water is discharged to the outer cylinder 3 by means of drainage, so as to reduce the detergent concentration of the centrifugal water thrown out from the inner cylinder 1, thus diluting and destroying the foam in the outer cylinder, which effectively solves the problem of foam accumulation at the clothes feeding port. , the overflow problem.
  • the fourth defoaming measure is the fourth defoaming measure.
  • a spray device is provided on the outer cylinder 2 and/or on the door 21 and/or on the observation window pad 5.
  • the foam sensor 4 detects that there is foam at the clothes injection port or the amount of foam exceeds the set value
  • the spraying device is activated to spray between the inner and outer drums and/or between the inner drum door 11 and the machine door 21 to eliminate the foam at the clothes injection port.
  • the spray device is arranged above the observation window pad 5.
  • the foam sensor 4 detects that there is foam at the clothes feeding port or between the inner cylinder door 11 and the machine door 21, or the amount of foam exceeds a set value, it will start The spray device sprays and eliminates the foam between the inner cylinder door 11 and the machine door 21 .
  • the fourth defoaming measure provided in this embodiment can be used in any combination with the first/second/third defoaming measure to improve the defoaming efficiency.
  • the spraying device when the foam sensor 4 detects that there is foam at the clothes feeding port or the amount of foam exceeds the set value, the spraying device is activated to spray between the inner and outer tubs and/or the inner tub door 11 and the machine door 21 Spraying is carried out in between, and the foam at the clothes feeding port is eliminated by spraying, which effectively solves the problem of foam accumulation and overflow at the clothes feeding port, and the control is simpler and more convenient.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

本发明公开了一种滚筒洗衣机及其控制方法，所述洗衣机包括：外壳；内筒，设置在外壳内，所述外壳对应内筒的筒口形成有衣物投放口；泡沫检测装置，设置在外壳内，用于检测衣物投放口处的泡沫。所述控制方法包括：洗衣机通过泡沫检测装置检测衣物投放口处的泡沫，并根据检测结果控制是否启动消泡措施。本发明提供的洗衣机，通过设置的泡沫检测装置来检测衣物投放口处的泡沫，并当检测到泡沫时及时采取消泡措施，解决了洗涤过程中产生大量的泡沫积聚在衣物投放口处，导致大量泡沫从衣物投放口溢出的问题，同时避免了用户在打开机门时看到大量泡沫存在，影响用户使用体验的现象发生。

Description

一种滚筒洗衣机及其控制方法 技术领域
本发明涉及衣物处理设备技术领域，尤其是一种滚筒洗衣机及其控制方法。
背景技术
滚筒洗衣机是人们日常生活中比较常用的家用电器之一。滚筒洗衣机的使用，为人们的生活带来便利。现有技术中的滚筒洗衣机，外筒盛水，内筒旋转洗涤，内筒壁上设置有孔，用于向内筒中进洗涤水或者用于对内筒中的衣物进行脱水，洗涤水长时间在内外筒之间流动，导致内、外筒的夹层之间会积存脏污、水垢，造成大量细菌繁殖，对衣物造成二次污染，严重威胁消费者的健康，并且内筒和外筒中间夹层之间的水的填充造成无用的水浪费，因此，人们设计了无孔内筒滚筒洗衣机。
无孔内筒滚筒洗衣机的内筒上不再开设有与外筒连通的透水孔，洗涤衣物时，外筒中没有水，内筒独立盛放洗涤水，有效地解决了现有的滚筒洗衣机洗涤水长时间在内外筒之间流动，导致内、外筒之间的夹层积存脏污、水垢的问题。内筒上开设有常闭设置的排水孔，所述排水孔上安装有常闭的密封阀，所述密封阀在离心力的作用下可打开所述排水孔，进行离心排水。
然而经常会发生由于用户误操作投入过量的洗衣粉或者洗涤剂，造成的内筒内产生大量的泡沫，滚筒洗衣机在离心排水的过程中，离心水中含有高浓度的洗涤剂，导致高速离心摔打至外筒表面碰撞，外筒内的离心水又在高速旋转的内筒搅拌下，会导致内外筒之间产生大量泡沫，产生的泡沫积聚在内筒的内筒门和外壳的机门之间，导致大量泡沫从衣物投放口或者从衣物投放口与机门之间的缝隙溢出，并且当用户在打开机门时看到大量泡沫的存在，也会影响用户的使用体验。
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，提供一种能够及时高效地发现衣物投放口处是否存在泡沫的滚筒洗衣机及其控制方法，解决了现有的滚筒洗衣机在洗涤过程中产生大量的泡沫积聚在衣物投放口处，导致大量泡沫从衣物投放口或者从衣物投放口与机门之间的缝隙溢出的问题。
为了实现该目的，根据本发明的一个方面，本发明采用如下技术方案：
一种滚筒洗衣机，包括：
外壳；
内筒，设置在外壳内，所述外壳对应内筒的筒口形成有衣物投放口；
泡沫检测装置，设置在外壳内，用于检测衣物投放口处的泡沫。
进一步地，还包括：
机门，可开闭地安装在衣物投放口上；
内筒门，可开闭地安装在内筒的筒口上，所述内筒门关闭时与内筒共同形成独立的洗涤腔室；
所述泡沫检测装置设置在机门和内筒门之间。
进一步地，所述泡沫检测装置为设置在机门和内筒门之间的泡沫传感器；优选地，所述泡沫传感器设置在靠近机门水平中线的位置。
进一步地，还包括同轴设置在内筒外的外筒以及连接在外筒的筒口和衣物投放口之间的观察窗垫，所述泡沫传感器设置在观察窗垫上。
本发明的另一目的，还提供了一种具有上述任一所述的滚筒洗衣机的控制方法：
洗衣机通过泡沫检测装置检测衣物投放口处的泡沫，并根据检测结果控制是否启动消泡措施。
进一步地，当泡沫传感器检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则控制内筒降低转速，以消除衣物投放口处的泡沫。
进一步地，当泡沫传感器检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则控制内筒停止转动，以消除衣物投放口处的泡沫。
进一步地，控制内筒降低转速/停止转动至设定时间后再恢复正常转动；
或者，当泡沫传感器检测到衣物投放口处的泡沫已消除或者泡沫含量低于设定 值时，再控制内筒恢复正常转动。
进一步地，在进行洗涤或者漂洗程序的离心排水进程中，当泡沫传感器检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则控制向内筒进水，再通过离心排水的方式将进水排出至外筒，循环执行上述步骤。
进一步地，所述外筒上和/机门上和/或观察窗垫上设置有喷淋装置，当泡沫传感器检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则启动喷淋装置对内外筒之间和/或内筒门与机门之间进行喷淋，以消除衣物投放口处的泡沫。
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：
1、本发明提供的滚筒洗衣机，通过设置的泡沫检测装置来检测衣物投放口处的泡沫，并当检测到泡沫时及时采取消泡措施，解决了洗涤过程中产生大量的泡沫积聚在衣物投放口处，导致大量泡沫从衣物投放口溢出的问题，同时避免了用户在打开机门时看到大量泡沫存在，影响用户使用体验的现象发生。
2、本发明提供的滚筒洗衣机，泡沫检测装置为设置内筒门与机门之间、或者观察窗垫上的泡沫传感器，能够及时高效地发现并遏止泡沫溢流至衣物投放口处，且泡沫检测装置结构简单，成本低，易于使用推广。
3、本发明提供的滚筒洗衣机，当泡沫传感器检测到投放口或者内筒门与机门之间存在泡沫或者泡沫量超过设定值时，则通过采用降低内筒转速或者停止转动的方式，来解决外筒内的离心水在高速旋转的内筒的搅拌下更易产生泡沫的问题，有效地解决了衣物投放口处泡沫积存、溢出的问题。
4、本发明提供的滚筒洗衣机，当泡沫传感器检测到投放口或者内筒门与机门之间存在泡沫或者泡沫量超过设定值时，则控制向内筒进水，再通过离心排水的方式将进水排出至外筒，以降低内筒甩出的离心水的洗涤剂浓度，起到稀释和泡坏外筒内泡沫的作用，有效地解决了衣物投放口处泡沫积存、溢出的问题。
5、本发明提供的滚筒洗衣机，当泡沫传感器检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则启动喷淋装置对内外筒之间和/或内筒门与机门之间进行喷淋，通过喷淋的方式消除衣物投放口处的泡沫，有效地解决了衣物投放口处泡沫积存、溢出的问题，且控制更加简单方便。
附图说明
图1是本发明实施例中滚筒洗衣机的一种结构示意图；
图2是本发明实施例中滚筒洗衣机的另一种结构示意图；
图3是本发明实施例中滚筒洗衣机的控制方法示意图；
图4是本发明实施例中第一/第二种消泡措施控制方法示意图；
图5是本发明实施例中第三种消泡措施控制方法示意图；
图6是本发明实施例中第四种消泡措施控制方法示意图；
其中：
1、内筒；11、内筒门；
2、外壳；21、机门；
3、外筒；4、泡沫传感器；5、观察窗垫；6、驱动电机；61、传动轴。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对实施例中的技术方案进行清楚、完整地描述，以下实施例用于说明本发明，但不用来限制本发明的范围。
在本发明的描述中，需要说明的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
下面结合实施例对本发明进行进一步地详细的说明。
如图1和图2所示，本实例提供了一种滚筒洗衣机，包括：外壳2；内筒1，设置在外壳2内，所述外壳2对应内筒1的筒口形成有衣物投放口；泡沫检测装置，设置在外壳2内，用于检测衣物投放口处的泡沫。本实施例通过设置的泡沫检测装 置来检测衣物投放口处的泡沫，有效地解决了现有的滚筒洗衣机在洗涤过程中产生大量的泡沫积聚在衣物投放口处，导致大量泡沫从衣物投放口或者从衣物投放口与机门之间的缝隙溢出的问题。
本实施例中提供的洗衣机可以为普通的内外筒之间填充有洗涤水/漂洗水的滚筒洗衣机，所述泡沫检测装置用于检测普通的滚筒洗衣机衣物投放口处的泡沫。
优选地，本实施例提供的为一种无孔内筒前开式结构的滚筒洗衣机，所述泡沫检测装置用于检测无孔内筒洗衣机的衣物投放口处的泡沫。本实施例提供的无孔内筒洗衣机结构简单，能够无需在内筒1与外筒3之间填充洗涤/漂洗水而极大的减少了洗衣机的洗涤用水量，避免了内筒1与外筒3之间污垢附着的可能，极大的提高了用户健康及用户体验，极大的节约了水资源。
具体地，所述外壳2内设置有内筒1，所述内筒1在洗涤衣物时用于独立盛放洗涤水，所述内筒1上没有透水孔，内筒1上设有脱水孔，所述脱水孔上设有常闭的密封阀，所述密封阀在离心力的作用下可打开所述脱水孔，进行离心排水。
进一步地，所述外壳2包括：上台面板，前面板，后背板和底板，所述前面板上对应内筒1的筒口形成有用于取放衣物的衣物投放口，所述洗衣机还包括设置在外壳2内用于检测衣物投放口处泡沫的泡沫检测装置。
进一步地，还包括可开闭地安装在衣物投放口上的机门21以及可开闭地安装在内筒1的筒口上的内筒门11，所述内筒门11关闭时与内筒1共同形成独立的洗涤腔室，进而实现内筒1为密封舱结构，所述内筒1在洗涤衣物时独立盛放洗涤水。本实施例中所述泡沫检测装置设置在机门21与内筒门11之间。
本实施例中，通过在机门21与内筒门11之间设置的泡沫检测装置，有效地解决了现有的无孔内筒的滚筒洗衣机，在离心排水时，内筒1内的洗涤水或者漂洗水在高速离心摔打至外筒表面产生碰撞，所述离心水中含有高浓度的洗涤剂，且又在离心力的摔打作用下以及内筒1高速旋转的搅拌下，会在外筒3内产生大量的泡沫，大量的泡沫积聚在内筒门11与机门21之间或者从衣物投放口溢出的问题。
进一步地，如图1所示，所述泡沫检测装置为设置在机门21和内筒门11之间的泡沫传感器4，所述泡沫传感器4用于检测衣物投放口处是否存在泡沫和/或泡沫量。
所述泡沫传感器4可以为电极传感器或者为能够检测到泡沫的透光率的浊度传 感器/透射度传感器等其他现有的用于检测泡沫的泡沫传感器4。本实施例中所述泡沫检测装置采用泡沫传感器4，其结构简单，成本低，易于使用推广。
优选地，如图1所示，所述泡沫传感器4设置在靠近机门21水平中线的位置，通过将泡沫传感器4设置在靠近机门21水平中线的位置，相比于设置在最顶部或者最低部，一方面能够更准确地检测出衣物投放口处整体的泡沫情况，另一方面能够避免线屑杂质堆积在泡沫传感器4上，影响泡沫传感器4的测量精准度。
在一种实施方式中，所述泡沫传感器4可以固定在机门21内侧，优选地，所述泡沫传感器4通过支架固定支撑在内筒门11与机门21之间的中间位置，以使得当泡沫蔓延至内筒门11与机门21之间的位置时，所述泡沫传感器4就能够检测到泡沫，及时地遏制泡沫蔓延至衣物投放口，从衣物投放口溢出，引发安全事故。
进一步地，所述外壳2内部具有外筒3，所述外筒3同轴设置在内筒1外，外筒3主要目的为了收集内筒1的排水及内筒1高速离心脱水的排水。外筒3具有中心安装孔，安装固定了轴承，内筒1紧固连接有传动轴61，所述传动轴61穿过所述轴承并与驱动电机6连接固定，所述内筒1在驱动电机6的驱动下旋转进行洗涤或者脱水程序等。
在另一种实施方式中，所述泡沫传感器4可以设置在外筒3内壁上靠近外筒3筒口的位置，通过将泡沫传感器4设置在外筒3的筒口处，在泡沫蔓延至内筒1筒口的位置时，所述泡沫传感器4就能够检测到泡沫的存在，使得洗衣机能够有更充足的时间来进行消泡措施，降低泡沫可能从衣物投放口溢出的概率。
进一步地，所述洗衣机还包括连接在外筒3的筒口和衣物投放口之间的观察窗垫5，所述观察窗垫5一端开口连接外筒3的筒口、另一端开口连接衣物投放口，实现衣物投放口与外筒3的密封连接。
在另一种实施方式中，如图2所示，所述泡沫传感器4设置在观察窗垫5上，所述泡沫传感器4安装在观察窗垫5内周侧。由于所述观察窗垫5位于内筒门11与机门21之间，将泡沫传感器4安装在观察窗垫5上，就能够及时地检测出内筒门11与机门21之间是否存在泡沫以及泡沫量等信息，避免用户在打开机门21时，看到内筒门11与机门21之间积聚大量的泡沫，影响用户使用体验的现象发生。同时，将泡沫传感器4设置在了内筒门11和机门21之间的观察窗垫5上，也有效地阻断了泡沫从衣物投放口溢出的可能。
优选地，所述观察窗垫5上设置有用于安装所述泡沫传感器4的安装位，所述安装位为观察窗垫5内的容置槽，所述泡沫传感器4嵌设安装在所述容置槽内。通过将泡沫传感器4嵌设安装在观察窗垫5的容置槽内进行隐蔽设置，提升洗衣机的美观性，同时也起到保护泡沫传感器4的作用。
优选地，所述泡沫传感器4的安装位设置在观察窗垫5上靠近内筒1旋转轴线的位置，所述泡沫传感器4安装在整个观察窗垫5的中间高度位置，相比于设置在观察窗垫5最顶部或者最低部，一方面能够更准确地检测内筒门11与机门21之间整体的泡沫情况，另一方面能够避免线屑杂质堆积在泡沫传感器4上，影响泡沫传感器4的测量精准度。
本实施例提供的滚筒洗衣机，泡沫检测装置为设置内筒门11与机门21之间、或者观察窗垫5上的泡沫传感器4，能够及时高效地发现并遏止泡沫溢流至衣物投放口处。
进一步地，所述衣物投放口处还设置有用于消除衣物投放口处泡沫的喷淋装置。
在一种实施方式中，所述喷淋装置包括沿着外筒3筒口、或者观察窗垫5的周向间隔设置的多个喷淋头；或者，所述喷淋装置具有一可旋转的旋转喷淋头。所述喷淋装置可以设置在外筒3筒口处或者机门21上。
或者，在另一种较为优选的实施方式中，所述喷淋装置设置在观察窗垫5上方；所述的喷淋装置包括用于进水的喷淋管，喷淋管的出水端设置喷淋嘴，喷淋嘴的出水端连接观察窗垫5，所述的观察窗垫5上设置喷淋接口，喷淋嘴伸入到喷淋接口内。
在泡沫传感器4检测到衣物投放口处即内筒门11与机门21之间存在泡沫或者泡沫量超过设定值时，则控制启动所述喷淋装置，对内筒门11和机门21之间进行喷淋，以消除衣物投放口处的泡沫。
如图3所示，本实施例还提供了一种具有上述滚筒洗衣机的控制方法：洗衣机通过泡沫检测装置检测衣物投放口处的泡沫，并根据检测结果控制是否启动消泡措施。当泡沫传感器4检测到洗衣机的衣物投放口处存在泡沫，或者检测到泡沫量超过设定值时，将检测结果反馈至洗衣机的控制单元，洗衣机的控制单元则启动消泡措施消除衣物投放口处的泡沫。
本实施例提供的滚筒洗衣机，通过采用上述控制方法，有效地解决了洗涤过程中产生大量的泡沫积聚在衣物投放口处，导致大量泡沫从衣物投放口或者从衣物投 放口与机门21之间的缝隙溢出的问题，同时避免了用户在打开机门21时看到大量泡沫存在，影响用户使用体验的现象发生。
本实施例中提供的滚筒洗衣机，通过以下四种消泡措施对衣物投放口处的泡沫进行消泡处理。
第一种消泡措施：
如图4所示，当泡沫传感器4检测到衣物投放口处存在泡沫或者泡沫量超过设定值V 1时，则控制内筒4降低转速，以消除衣物投放口处的泡沫。通过控制内筒4降低转速的方式，既能够最大限度地减少采取消泡措施对洗涤进程的影响，又能够有效地缓解外筒2中的离心水在内筒4高速旋转的搅拌下产生大量泡沫的现象。
优选地，本实施方式中的消泡措施主要针对衣物投放口处泡沫量较少的情况，当泡沫量介于V 1～V 2之间或者只要检测到有泡沫即泡沫量小于V 1时，其中V 2＞V 1＞0，则采取上述措施进行消泡处理，通过采取上述措施，既能够达到成功消除泡沫的目的，又能够最大限度地减少采取消泡措施对洗衣进程及洗衣效果的影响。
第二种消泡措施：
如图4所示，当泡沫传感器4检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则控制内筒1停止转动，以消除衣物投放口处的泡沫。内筒1停止转动，外筒3内的离心水就不会因内筒1的搅拌而产生大量的泡沫，进而也就消除了衣物投放口处的泡沫，该消泡措施的消泡效果更及时高效。
优选地，本实施方式中的消泡措施主要针对泡沫量较大的情况，当泡沫传感器4检测到衣物投放口处的泡沫量超过设定值V 2则控制内筒1停止转动，其中所述V 2的数值大小大于第一种消泡措施中V 1数值大小。本实施例方式的消泡措施相比于第一种消泡措施，消泡力度更强，能够及时高效地消除衣物投放口处积存的大量泡沫。
如图4所示，在上述两种消泡措施中，当控制内筒1降低转速/停止转动至设定时间后再恢复正常转动；或者，当泡沫传感器4检测到衣物投放口处的泡沫已消除或者泡沫含量低于设定值时，再控制内筒1恢复正常转动。
具体地，当判断到泡沫传感器4检测到衣物投放口处存在泡沫且泡沫量低于V 1时，或者泡沫量介于V 1～V 2之间时，则控制内筒1降低转速至N 1，并在达到设定时间t 1时，控制内筒1恢复正常转速N 0转动，其中N 0＞N 1。
或者，在另一种方案中，当泡沫传感器4检测到衣物投放口处的泡沫已消除或者泡沫含量低于设定值V 3时，再控制内筒恢复正常转速N 0转动，所述V 1＞V 3＞0。
当判断到泡沫传感器4检测到衣物投放口处存在泡沫且泡沫量大于V 2时，则控制内筒1停止转动，并在达到设定时间t 2时，控制内筒1恢复正常转速N 0转动。
或者，在另一种方案中，当判断到泡沫传感器4检测到衣物投放口处泡沫量大于V 2时，则控制内筒1停止转动，内筒1当泡沫传感器4检测到衣物投放口处的泡沫含量低于设定值V 1时，则控制内筒1以转速N 1转动t 1时间后恢复正常转速N 0转动，或者，当泡沫传感器4检测到衣物投放口处的泡沫已彻底消除或者泡沫量低于V 3时，所述V 1＞V 3＞0，则控制内筒1恢复正常转速N 0转动。
本实施例提供的滚筒洗衣机，当泡沫传感器4检测到投放口或者内筒门11与机门21之间存在泡沫或者泡沫量超过设定值时，则通过采用降低内筒1转速或者停止转动的方式，来解决外筒2内的离心水在高速旋转的内筒1的搅拌下更易产生泡沫的问题，有效地解决了衣物投放口处泡沫积存、溢出的问题。
第三种消泡措施：
如图5所示，在进行洗涤或者漂洗程序的离心排水进程中，当泡沫传感器4检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则控制向内筒1进水，再通过离心排水的方式将进水排出至外筒3，循环执行上述步骤。
在上述方案中，可以控制洗衣机循环执行n次“进水-离心排水”步骤后，n为设定值，控制洗衣机恢复正常工作。或者，当判断到衣物投放口处或者内筒门11与机门21之间的泡沫已消除，或者泡沫量低于设定值V 3时，则控制洗衣机恢复正常工作。
本实施方式提供的滚筒洗衣机，当泡沫传感器4检测到投放口或者内筒门11与机门21之间存在泡沫或者泡沫量超过设定值时，则控制向内筒1进水，再通过离心排水的方式将进水排出至外筒3，以降低内筒1甩出的离心水的洗涤剂浓度，起到稀释和泡坏外筒内泡沫的作用，有效地解决了衣物投放口处泡沫积存、溢出的问题。
第四种消泡措施：
如图6所示，所述外筒2上和/机门21上和/或观察窗垫5上设置有喷淋装置，当泡沫传感器4检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则启动喷 淋装置对内外筒之间和/或内筒门11与机门21之间进行喷淋，以消除衣物投放口处的泡沫。
优选的，所述喷淋装置设置在观察窗垫5上方，当泡沫传感器4检测到衣物投放口处或者内筒门11与机门21之间存在泡沫或者泡沫量超过设定值时，则启动喷淋装置对内筒门11与机门21之间的泡沫进行喷淋消除。
本实施方式中提供的第四种消泡措施，可以与第一种/第二种/第三种消泡措施任意组合使用，以提高消泡效率。
本实施方式提供的滚筒洗衣机，当泡沫传感器4检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则启动喷淋装置对内外筒之间和/或内筒门11与机门21之间进行喷淋，通过喷淋的方式消除衣物投放口处的泡沫，有效地解决了衣物投放口处泡沫积存、溢出的问题，且控制更加简单方便。
应该注意的是上述实施例对本发明进行说明而不是对本发明进行限制，并且本领域技术人员在不脱离所附权利要求的范围的情况下可设计出替换实施例。在权利要求中，不应将位于括号之间的任何参考符号构造成对权利要求的限制。单词“包含”不排除存在未列在权利要求中的元件或步骤。位于元件之前的单词“一”或“一个”不排除存在多个这样的元件。在列举了若干装置的单元权利要求中，这些装置中的若干个可以是通过同一个硬件项来具体体现。
以上所述仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专利的技术人员在不脱离本发明技术方案范围内，当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明方案的范围内。

Claims (10)

  1. 一种滚筒洗衣机，其特征在于，包括：
    外壳；
    内筒，设置在外壳内，所述外壳对应内筒的筒口形成有衣物投放口；
    泡沫检测装置，设置在外壳内，用于检测衣物投放口处的泡沫。
  2. 根据权利要求1所述的滚筒洗衣机，其特征在于，还包括：
    机门，可开闭地安装在衣物投放口上；
    内筒门，可开闭地安装在内筒的筒口上，所述内筒门关闭时与内筒共同形成独立的洗涤腔室；
    所述泡沫检测装置设置在机门和内筒门之间。
  3. 根据权利要求2所述的滚筒洗衣机，其特征在于：
    所述泡沫检测装置为设置在机门和内筒门之间的泡沫传感器；优选地，所述泡沫传感器设置在靠近机门水平中线的位置。
  4. 根据权利要求3所述的滚筒洗衣机，其特征在于：
    还包括同轴设置在内筒外的外筒以及连接在外筒的筒口和衣物投放口之间的观察窗垫，所述泡沫传感器设置在观察窗垫上。
  5. 一种具有上述权利要求1-4任一项所述的滚筒洗衣机的控制方法，其特征在于：
    洗衣机通过泡沫检测装置检测衣物投放口处的泡沫，并根据检测结果控制是否启动消泡措施。
  6. 根据权利要求5所述的滚筒洗衣机的控制方法，其特征在于：
    当泡沫传感器检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则控制内筒降低转速，以消除衣物投放口处的泡沫。
  7. 根据权利要求5所述的滚筒洗衣机的控制方法，其特征在于：
    当泡沫传感器检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则控制内筒停止转动，以消除衣物投放口处的泡沫。
  8. 根据权利要求6或7所述的滚筒洗衣机的控制方法，其特征在于：
    控制内筒降低转速/停止转动至设定时间后再恢复正常转动；
    或者，当泡沫传感器检测到衣物投放口处的泡沫已消除或者泡沫含量低于设定值时，再控制内筒恢复正常转动。
  9. 根据权利要求5所述的滚筒洗衣机的控制方法，其特征在于：
    在进行洗涤或者漂洗程序的离心排水进程中，当泡沫传感器检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则控制向内筒进水，再通过离心排水的方式将进水排出至外筒，循环执行上述步骤。
  10. 根据权利要求6-9任一项所述的滚筒洗衣机的控制方法，其特征在于：
    所述外筒上和/机门上和/或观察窗垫上设置有喷淋装置，当泡沫传感器检测到衣物投放口处存在泡沫或者泡沫量超过设定值时，则启动喷淋装置对内外筒之间和/或内筒门与机门之间进行喷淋，以消除衣物投放口处的泡沫。
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