WO2019047762A1 - 一种洗衣机排水控制方法及洗衣机 - Google Patents

一种洗衣机排水控制方法及洗衣机 Download PDF

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Publication number
WO2019047762A1
WO2019047762A1 PCT/CN2018/103156 CN2018103156W WO2019047762A1 WO 2019047762 A1 WO2019047762 A1 WO 2019047762A1 CN 2018103156 W CN2018103156 W CN 2018103156W WO 2019047762 A1 WO2019047762 A1 WO 2019047762A1
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WIPO (PCT)
Prior art keywords
water
washing machine
inner tub
water collecting
drainage
Prior art date
Application number
PCT/CN2018/103156
Other languages
English (en)
French (fr)
Inventor
吕艳芬
许升
郝兴慧
吴迪
吕佩师
Original Assignee
青岛海尔洗衣机有限公司
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Publication date
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 JP2020513854A priority Critical patent/JP7146904B2/ja
Publication of WO2019047762A1 publication Critical patent/WO2019047762A1/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
    • 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
    • D06F39/087—Water level measuring or regulating 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
    • 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
    • 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
    • D06F39/081—Safety arrangements for preventing water damage
    • D06F39/082—Safety arrangements for preventing water damage detecting faulty draining operations, e.g. filter blockage, faulty pump
    • 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
    • D06F2103/18—Washing liquid level
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • 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

Definitions

  • the invention belongs to the field of washing machines, and in particular to a washing machine drainage control method and a washing machine.
  • the washing machine is designed as a device for washing laundry by using electricity.
  • the washing machine includes: a tub for accommodating washing water; a rotating tub rotatably installed inside the tub; and a pulsator rotatably mounted in the rotating tub The bottom; the motor and clutch are configured to rotate the rotating barrel and the pulsator.
  • the rotating tub and the pulsator When the rotating tub and the pulsator are rotated in a state where the laundry and the detergent are introduced into the rotating tub, the pulsator agitates the washing water together with the laundry introduced into the rotating tub, thereby removing the stain from the laundry.
  • a larger rotating tub is required, that is, the height or diameter of the rotating tub needs to be increased. If the rotary tub has a larger size, the bucket accommodating the rotary tub and the cabinet accommodating the tub also need to increase as the rotary tub increases.
  • the increase of the casing corresponding to the appearance of the washing machine is limited by the space of the area in which the washing machine is installed.
  • the position of the general user in the home for placing the washing machine is limited, and the purpose of increasing the size of the washing machine to increase the capacity of the washing tub is not realistic, such as how to Without increasing the casing of the washing machine, increasing the capacity of the washing tub becomes a major problem for the designer.
  • the applicant uses a method of providing a water collecting structure outside the tub to expand the space between the tub and the casing of the washing machine.
  • the applicant found that if the drain valve or the drain pump fails or the user forgets to put the drain pipe down when washing, the water cannot be drained at this time, which may cause the water to overflow from the water collecting structure and flow to the ground or the electric device at the bottom of the washing machine. Not only will the washing machine malfunction, but also adversely affect the user's home floor.
  • 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 washing machine drainage control method and a washing machine.
  • the washing machine of the present invention is provided with a water collecting structure on the outside of the inner tub, which can collect water discharged from the inner tub. Moreover, the space occupied between the inner tub and the washing machine can be reduced to achieve a good expansion effect; at the same time, the pre-drainage process is increased, and the water level change in the water collecting structure is detected, and the abnormality of the washing machine is found in time to avoid water from collecting water.
  • the structure overflows into the electrical components or the ground inside the washing machine to avoid loss to the user.
  • a first object of the present invention is to provide a drainage control method for a washing machine, wherein a water collecting structure for collecting water discharged from the inner tub is provided outside the inner tub of the washing machine, and the draining process of the washing machine includes a pre-draining process and a main draining process, and the washing machine is drained.
  • the pre-drainage process is performed first, and the water level change in the water collecting structure is detected during the pre-drainage process to determine whether there is a drainage abnormality.
  • the pre-draining process is: the washing machine controls the drain port of the inner tub to communicate with the water collecting structure, so that the water portion in the inner tub enters the water collecting structure, and then closes the drain port to detect the water level in the water collecting structure for a period of time. Change to determine if there is any drainage abnormality.
  • the washing machine judges that the drainage is normal and enters the main drainage process; if the water level does not decrease, it is determined that there is a drainage abnormality, and the washing machine keeps the drain opening of the inner barrel closed.
  • the washing machine sets a preset value of the change in the water level drop. If the change in the water level in the water collecting structure is greater than L, it is judged that the drainage is normal. If the change in the water level in the water collecting structure is less than or equal to L, the drainage is judged. abnormal.
  • a drainage device capable of opening/closing the drainage port is provided at the drain port of the inner tub, and the drain pipe of the washing machine is connected with the water collecting structure, and the drain pipe is provided with a drain valve and/or a drain pump;
  • the washing machine controls the drain valve and/or the drain pump to open, and the control plugging device opens the drain port of the inner tub. After some water in the inner tub enters the water collecting chamber, the washing machine controls the plugging device to close the drain port of the inner tub.
  • the water level sensor detects the water level change in the water collecting structure over a period of time;
  • the washing machine determines that the drainage is normal, and again controls the plugging device to completely open the drain port of the inner tub, and keeps the drain valve and/or the drain pump in an open state, and enters the main draining process;
  • the washing machine determines that the drain is abnormal, and the control plugging device is in a state of closing the drain port of the inner tub, and prompts the drain abnormality.
  • the period of time is T1; in the normal state of drainage, the time required for all water entering the water collecting structure during the pre-drainage process is T2, wherein T1 ⁇ 1/3T2;
  • a second object of the present invention is to provide a washing machine having the drainage control method as described above, comprising a tank body, an inner tub disposed in the tank body and a driving device for driving the inner tub to rotate, and the inner tub is a water tub during the washing.
  • the outer portion of the inner tub is provided with a water collecting structure. When dewatering and draining, the water discharged from the inner tub is discharged through the water collecting structure; further comprising a water level detecting device, wherein the water level detecting device is in communication with the water collecting structure.
  • the water collecting structure includes a water collecting chamber having an upper opening, wherein the inner tub communicates with an upper opening of the water collecting chamber;
  • the water level detecting device includes a gas chamber, and the lower portion of the air chamber and the water collecting chamber The bottom is connected.
  • the water level detecting device further comprises a pressure guiding tube and a water level sensor, wherein the water level sensor is disposed in the tank body, the air chamber is provided with a gas chamber mouth, and the water level sensor is connected to the air chamber mouth on the air chamber through the pressure guiding tube ;
  • the air chamber mouth of the air chamber is disposed toward the box body, and the water level sensor is installed on the upper part of the box body or the control panel seat of the washing machine; the pressure guiding tube is vertically disposed, the upper end is connected with the water level sensor, and the lower end is connected with the water level sensor.
  • the gas chamber is connected.
  • the water collecting structure comprises a mounting plate and a water retaining rib disposed on the mounting plate, the mounting plate is enclosed with the water retaining rib to form a water collecting chamber, and the air chamber is disposed on the mounting plate and located The outside of the water retaining rib;
  • the water retaining rib is annular, and the water retaining rib is enclosed with the mounting plate to form an annular water collecting chamber;
  • the water retaining rib is inclined, and the water retaining rib is gradually contracted from the top to the bottom in the direction of the central axis of the water collecting chamber, wherein the air chamber is located below the inclined water retaining rib and is located at the horizontal level of the water collecting chamber Within the projection of the direction.
  • the mounting plate on the outer side of the water retaining rib is provided with a vertical curved retaining rib, and the upper end and the two sides of the curved retaining rib are respectively sealed with the water retaining rib or integrally formed, and the curved retaining rib is The lower end is sealed or integrally formed with the mounting plate; the curved retaining rib, the water retaining rib and the mounting plate jointly surround the air chamber having a cavity therein, and the bottom of the water retaining rib opposite to the air chamber is provided with an opening to collect water The cavity is connected to the air chamber, and the curved rib is provided with a gas chamber mouth.
  • the present invention has the following beneficial effects compared with the prior art:
  • the washing machine of the present invention is provided with a water collecting structure on the outside of the inner tub, which can collect water discharged from the inner tub, and can reduce the space occupied between the inner tub and the cabinet of the washing machine, thereby achieving a good expansion effect.
  • the washing machine box of the present invention is further provided with a water level detecting structure, which can detect the water level change in the water collecting structure, and timely discover the abnormality of the washing machine, and prevent the water from overflowing from the water collecting structure to the electrical components or the ground inside the washing machine. Avoid causing losses to users.
  • Figure 1 is a schematic cross-sectional structural view of a washing machine of the present invention
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the embodiment provides a drainage control method for a washing machine.
  • the outer tub of the washing machine is provided with a water collecting structure for collecting water discharged from the inner tub.
  • the draining process of the washing machine includes a pre-draining process and a main draining process, and the washing machine first performs pre-draining when draining. In the process, during the pre-drainage process, it is determined whether there is a drainage abnormality by detecting the water level change in the water collecting structure for a period of time.
  • the water discharged from the inner tub 200 can be discharged through the water collecting structure at the time of dehydration and drainage.
  • the inner tub 200 is a water tub, and the outer tub 200 is not provided with an outer tub.
  • the movable space of the inner tub 200 is increased, which reduces the possibility of hitting the bucket.
  • the water collecting structure can reduce the inner tub 200 and the cabinet.
  • the occupation of the space between the 100 increases the movable space of the inner barrel mouth, so that the volume of the inner barrel 200 can be increased to increase the volume thereof, thereby realizing effective expansion.
  • the upper opening of the water collecting structure is lower than the upper opening of the inner tub, and when there is an abnormality in the drainage, the water overflows from the water collecting structure.
  • the pre-draining process is increased, or the drainage process of the washing machine is divided into a pre-drainage and a main draining process, and the pre-drainage is performed first, and then the main draining process is performed.
  • a small amount of water is discharged from the inner tub to detect the presence of abnormal drainage.
  • the main drainage process with a large amount of water can be performed, and the water can be prevented from being discharged, and the overflow from the water collecting structure can ensure the safety of the operation of the washing machine.
  • the pre-draining process is: the washing machine controls the drain port of the inner tub to communicate with the water collecting structure, so that the water portion in the inner tub enters the water collecting structure, and then closes the drain port to detect the water level in the water collecting structure for a period of time. Change to determine if there is any drainage abnormality.
  • the amount of water entering the water collecting structure is small, and the volume of water entering the water collecting structure does not exceed the volume of the water collecting structure, so that even if there is abnormal drainage, the discharged water can be collected in the water collecting structure. It does not overflow from the catchment structure.
  • the amount of water entering the water collecting structure is judged by controlling the extent and time of the drain opening of the inner tub. Then, according to the water level change in the water collecting structure, it is judged whether the drainage is normal. In this way, it is possible to avoid the direct large amount of drainage (that is, the main drainage process) existing in the present washing machine, and in the case where there is a drainage failure, the water overflows a lot.
  • the washing machine judges that the drainage is normal and enters the main drainage process; if the water level does not decrease, it is determined that there is a drainage abnormality, and the washing machine keeps the drain opening of the inner tub closed;
  • the washing machine sets the preset value L of the change in the water level drop. If the change value of the water level drop in the water collecting structure is greater than or equal to L, it is judged that the drainage is normal, and if the change value of the water level drop in the water collecting structure is less than L, the drainage is judged. abnormal.
  • the change in water level in the catchment structure is greater than or equal to L, indicating that the drainage is normal, there is no blockage, and the drainage is smooth. In this case, if a large amount of water is discharged from the inner tub, there will be no overflow. If the water level does not drop, or the level of the water level does not reach the preset value, the drainage channel is at least partially blocked, and the washing machine keeps the drain opening of the inner tub closed, and the washing water is retained in the inner tub to avoid overflow.
  • the preset value of change L can be comprehensively considered according to the specifications of the washing machine, the water collecting structure, the drain valve, etc., to ensure the accuracy of the detected drainage or not.
  • the value of L can be set to be greater than or equal to 0. When L is set to 0, the water level is lowered to determine that the drainage is normal, and if the water level is not decreased, the drainage failure is determined.
  • the period of time is a preset time, which may be a time required for the maximum volume of water to be fully discharged in the water collecting structure to be completely discharged under the normal state of drainage, or may be opened for a certain time in the drain port of the inner barrel.
  • the amount of water entering the catchment structure can be completely drained for the required time.
  • the period of time is T1; in the normal state of drainage, the time required for all the water entering the water collecting structure during the pre-drainage process is T2, wherein T1 ⁇ 1/3T2; preferably, 1/ 3T2 ⁇ T1 ⁇ T2. This setting ensures that the detection time is sufficient to ensure the accuracy of the water level detection changes.
  • a drainage device capable of opening/closing the drainage port is provided at the drain port of the inner tub, and the drain pipe of the washing machine is connected with the water collecting structure, and the drain pipe is provided with a drain valve and/or a drain pump;
  • the washing machine controls the drain valve and/or the drain pump to open, and the control plugging device opens the drain port of the inner tub. After some water in the inner tub enters the water collecting chamber, the washing machine controls the plugging device to close the drain port of the inner tub.
  • the water level sensor detects the water level change in the water collecting structure over a period of time;
  • the washing machine determines that the drainage is normal, and again controls the plugging device to completely open the drain port of the inner tub, and keeps the drain valve and/or the drain pump in an open state, and enters the main draining process;
  • the washing machine determines that the drain is abnormal, and the control plugging device is in a state in which the drain port of the inner tub is closed, and a water discharge abnormality is issued.
  • the valve plug When draining, by controlling the action of the valve plug in the plugging device, the valve plug is pulled back to a part of the entire stroke, so that the drain port 204 on the inner tub 200 communicates with the water collecting structure, so that the water inside the inner tub 200 enters between the inner and outer barrels. . At this time, the drain port 204 at the bottom of the inner tub 200 and the valve plug are still in an aligned state in the vertical direction. Then, the motor is controlled to reverse the action, and the valve plug is again blocked by the drain port 204 of the inner tub 200. It is determined whether there is a drainage failure by detecting whether the water level in the water collecting structure drops over time.
  • the water level sensor is installed in the box of the washing machine. If the water level detected by the water level sensor drops, the washing machine drains normally, and the washing machine performs normal drainage; if the water level does not drop, the drain valve or the drain pump is faulty or the user forgets to put down the drain when washing. There is a drainage abnormality. At this time, the washing machine keeps the drain port of the inner tub closed, does not drain, and issues an alarm to remind the user that there is abnormal drainage, which is convenient for the user to handle in time.
  • the embodiment provides a washing machine having a drainage control method according to the first embodiment.
  • the washing machine includes a box 100, an inner tub 200 disposed in the cabinet 100, and a driving unit 300 for driving the inner tub 200.
  • the driving device 300, the inner tub 200 is a water tub, and the outer tub 200 is provided with a water collecting structure.
  • the water level detecting device is further included.
  • the water level detecting device is in communication with the water collecting structure.
  • the water discharged from the inner tub 200 can be discharged through the water collecting structure at the time of dehydration and drainage.
  • the inner tub 200 is a water tub, and the outer tub 200 is not provided with an outer tub.
  • the movable space of the inner tub 200 is increased, which reduces the possibility of hitting the bucket.
  • the water collecting structure can reduce the inner tub 200 and the cabinet.
  • the occupation of the space between the 100 increases the movable space of the inner barrel mouth, so that the volume of the inner barrel 200 can be increased to increase the volume thereof, thereby realizing effective expansion.
  • the water level detecting device is connected with the water collecting structure, and the water level in the water collecting structure can be monitored at any time.
  • the washing machine can judge whether there is a drainage abnormality through the change of the water level in the water collecting structure, and can prevent the water from overflowing from the water collecting structure to the electric appliance inside the washing machine. Components or the ground, to avoid causing the washing machine to malfunction, causing losses to the user.
  • the water collecting structure includes a water collecting chamber 400 having an upper opening, the inner tub 200 is in communication with an upper opening of the water collecting chamber 400; the water level detecting device includes a gas chamber 802, a lower portion of the air chamber 802 and a water collecting chamber The bottom of the 400 is connected.
  • the upper opening of the water collecting chamber 400 is lower than the inner barrel opening of the inner tub 200.
  • the height of the opening in the water collecting chamber 400 may be set as needed, and the upper opening height of the water collecting chamber 400 may be half of the inner tub 200, or may be one third, or other suitable height.
  • the water collecting chamber 400 is entirely below the bottom of the inner tub 200, and the upper opening of the water collecting chamber 400 is lower than the bottom of the inner tub 200.
  • the water collecting chamber 400 does not have a structure between the inner tub 200 and the tank 100, and does not need to set a certain safety distance between the inner tub 200 and the water collecting structure to prevent the inner tub 200 from colliding with the water collecting structure, thereby causing damage, and also does not need to be used.
  • a safety distance is further set between the water collecting structure and the box 100. Therefore, only the safety distance between the inner tub 200 and the cabinet 100 can be designed, and the inner tub 200 can be greatly increased, and the inner tub 200 can be better expanded.
  • the water level detecting device is disposed in the tank 100, and the lower portion of the air chamber 802 is in communication with the water collecting chamber 400.
  • the water When water is introduced into the water collecting chamber 400, the water simultaneously enters the air chamber 802, and the water level and the set in the air chamber 802 are set.
  • the water level in the water chamber 400 will remain the same.
  • the change in water level in the plenum 802 is also consistent with the change in water level in the water collection structure, and the change in water level within the plenum 802 causes a change in pressure within the plenum 802. Therefore, the water level detecting means can detect the change in the water level in the water collecting structure by the pressure change in the air chamber 802, thereby judging whether or not the drainage is normal.
  • the side walls of the water collecting chamber 400 are spaced apart from the outer wall of the bottom of the inner tub 200 by a certain distance.
  • washing tub that is, the inner tub from shaking and collecting water
  • the upper end of the side wall of the water collecting chamber lower than the bottom of the inner tub and spacing the side wall of the water collecting chamber from the outer wall of the bottom of the inner tub 200
  • the side wall collision of the cavity can extend the service life of the water collection chamber.
  • the water level detecting device further includes a pressure guiding tube 804 and a water level sensor 801.
  • the water level sensor 801 is disposed in the tank 100.
  • the air chamber 802 is provided with a gas chamber mouth 803, and the water level sensor 801 passes through the pressure guiding tube 804 and the air chamber 802.
  • the upper chamber mouth 803 is connected.
  • the water level sensor 801 is disposed inside the casing 100, and may be installed on the side wall of the casing 100, or may be mounted on a structure such as a control disc seat on the upper portion of the casing 100, and the air pressure nozzle 804 and the air chamber mouth 803 of the air chamber 802.
  • the seal is connected, so that the water level sensor 801 can detect the change of the pressure in the air chamber 802 through the pressure guiding tube 804, and transmit the detected water level signal to the control device of the washing machine, and the washing machine can make a judgment according to the water level signal.
  • the air chamber mouth 803 of the air chamber 802 is disposed toward the box body 100.
  • the water level sensor 801 is installed on the upper part of the box body 100 or on the control panel of the washing machine; the pressure guiding tube 804 is vertically disposed, and the upper end is connected to the water level sensor 801. The lower end is connected to the air chamber mouth 803.
  • the water level sensor 801 is installed on the upper part of the cabinet 100 or on the control panel of the washing machine to avoid occupying the space between the inner tub 200 and the cabinet 100.
  • the pressure guiding tube 804 is vertically arranged to avoid bending and ensure the detection of the water level detecting device. The accuracy of the water level.
  • the water collecting chamber 400 is provided with a drain pipe 401 for discharging water in the water collecting structure, and the drain pipe 401 extends to the outside of the washing machine.
  • the inner tub 200 includes a dehydration port 201 for dehydration when dry and a dehydration discharge line 202 communicating with the dehydration port 201, and the water outlet 203 of the dehydration discharge line 202 communicates with the water collecting structure.
  • a dehydration port 201 for dehydration when dry and a dehydration discharge line 202 communicating with the dehydration port 201, and the water outlet 203 of the dehydration discharge line 202 communicates with the water collecting structure.
  • the water collecting structure includes a mounting plate 500 and a water retaining rib 501 disposed on the mounting plate 500 , and the mounting plate 500 is blocked.
  • the water rib 501 is enclosed to form a water collecting chamber 400, and the air chamber 802 is disposed on the mounting plate 500 and located outside the water retaining rib 501.
  • the mounting plate 500 is a horizontal plate, and the water retaining rib 501 is disposed on the mounting plate 500 and is fixedly sealed or integrally formed with the mounting plate 500.
  • the mounting plate 500 and the water retaining rib 501 are enclosed to form a water collecting chamber 400.
  • the mounting plate 500 forms a bottom wall of the water collecting chamber 400, and the water retaining rib 501 forms a side wall of the water collecting chamber 400.
  • the structure is simple and convenient. Processing and forming.
  • the water collecting chamber 400 is located in the middle of the mounting plate 500, so that the center of gravity of the water retaining device is more easily coincident with the center to reduce the offset.
  • the water retaining rib 501 is annular, and the water retaining rib 501 is enclosed with the mounting plate 500 to form an annular water collecting chamber 400.
  • the air chamber 802 is disposed on the mounting plate 500 and located outside the water retaining rib 501 to facilitate communication between the bottom of the air chamber 802 and the bottom of the water collecting chamber 400, thereby maintaining consistent changes in the water level in the air chamber 802 and the water collecting chamber 400.
  • the air chamber 802 can be fixedly or integrally formed with the mounting plate 500 or the water retaining rib 501, and is also convenient for installation or integral processing.
  • the air chamber 802 can be fixed as a separate member on the mounting plate 500, and the air chamber 802 communicates with the water collecting chamber 400 through a pipe; or the air chamber 802 can also be disposed on the outer wall of the water retaining rib 501, and the water retaining rib 501 And/or the mounting plate 500 is integrally disposed, and a side wall or a bottom wall is formed by the water retaining rib 501 or the mounting plate 500, so as to keep the air chamber 802 and the water collecting chamber 400 relatively fixed, and the air chamber 802 and the water collecting chamber 400 are ensured. Always connected.
  • the mounting plate 500 on the outer side of the water retaining rib 501 is provided with a vertical arc-shaped retaining rib 805, and the upper end and the two sides of the curved retaining rib 805 are respectively
  • the outer wall of the water retaining rib 501 is sealed or integrally formed, and the lower end of the curved retaining rib 805 is sealed or integrally formed with the mounting plate 500; the curved retaining rib 805, the water retaining rib 501 and the mounting plate 500 are combined to form a cavity therein.
  • the air chamber 802 has an opening at the bottom of the water retaining rib 501 opposite to the air chamber 802, and communicates the water collecting chamber 400 with the air chamber 802.
  • the curved rib 805 is provided with a gas chamber mouth 803.
  • the air chamber 802 of the present solution is disposed by the water retaining rib 501, that is, a part of the water retaining rib 501 is shared between the air chamber 802 and the water collecting chamber 400, and the side wall of the air chamber 802 is surrounded by the curved retaining rib 805.
  • the rib 805 can be integrally formed or fixedly sealed with the mounting plate 500 and/or the water stop rib 501.
  • the bottom of the water retaining rib 501 shared between the air chamber 802 and the water collecting chamber 400 is provided with an opening through which the air chamber 802 communicates with the water collecting chamber 400.
  • the water retaining rib 501 is disposed obliquely, and the water retaining rib 501 is gradually contracted from the top to the bottom in the direction of the central axis of the water collecting chamber 400, and the air chamber 802 is located at the inclined water retaining rib 501. Below, and located within the projection of the water collection chamber 400 in the horizontal direction.
  • the water collecting amount can be maximized and the use is more convenient; the water retaining rib 501 is gradually contracted from the top to the bottom in the direction of the central axis of the water collecting chamber 400, so that the upper opening diameter is further increased. Large, more convenient to collect.
  • the air chamber 802 is located below the inclined water retaining rib 501, and is located in the horizontal projection of the water collecting chamber 400, so that it does not protrude outward relative to the outermost circumference of the water collecting chamber 400, and collision with the cabinet 100 can be avoided. Avoid damage to the air chamber 802.
  • the bottom outer wall of the inner tub 200 is a curved surface, and the water retaining rib 501 is spaced apart from the curved surface of the inner tub 200 by a certain distance.
  • the projection of the inner tub 200 in the horizontal direction covers the projection of the water collecting chamber 400 in the horizontal direction.
  • the distance between the water collecting chamber 400 and the tank 100 is increased, and the water collecting chamber 400 is prevented from colliding with the tank 100, and the set can be reduced.
  • the water chamber 400 is damaged; at the same time, the water collecting chamber 400 is small in size, which is more convenient for installation of other devices at the bottom of the box 100.
  • the projection of the inner tub 200 in the horizontal direction may also be smaller than the projection of the water collecting chamber 400 in the horizontal direction, and more water can be collected.
  • the mounting plate 500 is provided with a drain pipe 401.
  • One end of the drain pipe 401 is in communication with the water collecting chamber 400, and the other end is connected to the outside of the washing machine or communicates with the total drain pipe 401 of the washing machine to discharge the water.
  • the inner wall of the inner tub 200 is provided with a dehydration port 201 and a dehydration discharge line 202 communicating with the dehydration port 201.
  • the water outlet 203 of the dehydration discharge line 202 is disposed above the upper opening of the water collection chamber 400.
  • Each of the dehydration port 201 and the dehydration discharge line 202 is a plurality of, each dehydration port 201 is respectively corresponding to the corresponding dehydration discharge line 202, or a plurality of dehydration ports 201 may be corresponding to one dehydration discharge line 202, when the washing machine performs drying During the procedure, the water that has been pumped out due to the centrifugal action of the washing tub enters the dehydration discharge line 202 through the dehydration port 201, and enters the water collection chamber 400 through the water outlet 203 of the dehydration discharge line 202, and is collected in the water collection chamber 400. It is discharged through the drain pipe 401.
  • the water outlet 203 of the dehydration discharge line 202 is disposed above the upper opening of the water collection chamber 400.
  • the water enters the dehydration discharge line 202 through the dehydration port 201 and then enters the water collection chamber 400 through the water outlet 203; the water outlet 203 is disposed in the water collection surrounded by the water retaining rib 501501.
  • Above the upper opening of the chamber 400 the water discharged from the water outlet 203 directly falls into the water collecting chamber 400.
  • This structure is simpler, and it is not necessary to add other additional components, and the water collecting effect is better.
  • the inner tub 200 further includes a drain port 204 for draining water in the inner tub 200 into the water collecting chamber 400 during drainage and dehydration, and a blocking device is disposed between the drain port 204 and the water collecting chamber 400.
  • the occlusion device opens the drain port 204 when draining and/or dehydrating, and blocks the drain port 204 during washing;
  • the drain port 204 is disposed above the upper opening of the water collecting chamber 400, and the blocking device is disposed at a lower portion of the drain port 204.
  • the washing machine is a pulsator washing machine.
  • the occlusion device 205 includes a valve plug 205-1 and an electromagnetic device 205-2 disposed under the valve plug 205-1.
  • the electromagnetic device 205-2 is electrically connected to a control device of the washing machine.
  • the valve plug 205 -1 sealing the drain port 204 to prevent water from draining in the inner tub 200.
  • the electromagnetic device 205-2 controls the valve plug 205-1 to move downward, causing the drain port 204 to open, and the water Discharge into the water retaining structure.
  • the mounting plate 500 is provided with a positioning device.
  • the bottom wall of the inner tub 200 is provided with a matching portion matching the positioning device.
  • the engaging portion can be a positioning groove.
  • the positioning device is drained and/or dried, the positioning device is separated from the engaging portion.
  • the inner tub 200 rotates with the output shaft 303.
  • the positioning device cooperates with the mating portion, and the inner tub 200 is caught on the mounting plate 500.
  • the valve plug 205-1 is just opposite to the drain port 204, and the drain port 204 is sealed. The plug prevents the water in the inner tub 200 from being discharged, and the output shaft drives the pulsator in the washing machine to rotate.
  • the mounting plate 500 is disposed between the inner tub 200 and the driving device 300, and the lower portion of the mounting plate 500 is fixedly connected to the outer casing of the driving device 300.
  • the driving device 300 includes a motor 301.
  • the motor 301 is provided with a deceleration clutch device 302.
  • the lower portion of the mounting plate 500 is fixedly connected to the deceleration clutch or to the outer casing of the motor 301.
  • the mounting plate 500 and the driving device 300 may be connected in a manner that the mounting plate 500 and the output shaft 303 of the driving device 300 are connected by bearings.
  • the output shaft 303 of the reduction clutch is connected to the inner tub 200 through the mounting plate 500 to drive the rotation of the inner tub 200, and the mounting plate 500 and the output shaft 303 of the driving device 300 are connected by bearings.
  • the washing machine provided in this embodiment further includes a suspension damper 600 and a mounting member 700 disposed at a lower portion of the inner tub. 300 is mounted on the mounting member 700.
  • One end of the suspension damper 600 is connected to the case 100, and the other end is connected to the mounting member 700.
  • the suspension damper 600 is mounted on the mounting member 700. Since the mounting member 700 is located lower than the inner tub, the longitudinal height of the mounting portion 701 is lowered, so that the suspension after installation is completed. The inclination angle ⁇ between the shock absorbing member 600 and the side wall of the casing is reduced, thereby reducing the occupied space of the suspension damper 600, and when the structure is suspended between the inner tub and the casing 100, The purpose of increasing the diameter of the inner tub without increasing the volume of the cabinet 100 is achieved.
  • the mounting member 700 includes a mounting portion 701 for mounting with the suspension damper 600, the mounting portion 701 being no higher than the bottom of the inner tub.
  • the mounting portion 701 is not higher than the bottom of the inner tub so that it does not occupy the space between the inner tub and the cabinet 100, and the diameter of the inner tub can be increased to achieve capacity expansion.
  • the suspension damper comprises a suspension rod 601 and a damper unit 602.
  • the suspension rod is connected with the damper unit.
  • the damper unit is assembled under the installation part, and the suspension rod passes through the installation part and is suspended from the upper part of the box body. The upper end of the damper unit abuts in the mounting portion.
  • the mounting portion 701 is located below the bottom of the inner tub.
  • the suspension damper 600 When the suspension damper 600 is assembled with the mounting portion 701, the suspension damper is suspended because the mounting portion 701 is lower than the bottom of the inner tub.
  • the angle of the inclination angle formed between the frame 600 and the casing 100 is reduced, that is, the suspension damper 600 is more closely fitted to the inner wall of the casing 100, and a more abundant space is reserved for the inner tub, so that the inner bucket can be increased.
  • the diameter is achieved for the purpose of expansion.
  • the projection of the mounting portion 701 in the horizontal direction is located at the periphery of the projection of the inner tub in the horizontal direction.
  • the mounting portion 701 Since the mounting portion 701 is disposed below the bottom of the tub of the inner tub, the space between the inner tub and the cabinet 100 is not occupied, and the mounting portion 701 does not collide with the inner tub. On this premise, the mounting portion 701 extends in the horizontal direction to the inner tub. In addition to the wall of the barrel, the projection of the mounting portion 701 in the horizontal direction is located on the periphery of the projection of the inner tub in the horizontal direction, further reducing the installation space of the suspension damper 600, thereby increasing the installation space of the inner tub and realizing the inner tub. Expansion.
  • the output shaft 303 is connected to the inner tub through the mounting member 700 for driving the inner tub to rotate, and the mounting member 700 is coupled to the output shaft 303 through a bearing.
  • the mounting member 700 can also be fixedly connected to the outer casing of the driving device 300 to make the mounting member 700, the driving device 300 and the inner tub become a relatively independent whole body; the mounting member 700 can also be fixedly connected with the outer casing of the driving device 300 and output.
  • the shaft 303 is connected by bearings to make the mounting member 700, the driving device 300 and the inner tub a relatively independent unit.
  • the mounting member 700 is coupled to the output shaft 303 by a bearing and/or to the outer casing of the driving device 300, so that the mounting member 700, the driving device 300 and the inner tub become a relatively independent unit, and the mounting member 700 is reduced by the damping member.
  • the vibration further reduces the vibration of the inner tub and the driving device 300, thereby achieving a good shock absorbing effect.
  • the mounting member 700 is a central symmetrical structure, and the plurality of suspension dampers 600 are evenly distributed around the mounting member 700.
  • the mounting plate in the second embodiment is a part of the mounting member, and the mounting plate is the structure of the upper portion of the mounting member.

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

Abstract

本发明属于洗衣机领域，公开了一种洗衣机排水控制方法及洗衣机，洗衣机的内桶外部设有收集内桶中排出的水的集水结构，洗衣机的排水过程包括预排水过程和主排水过程，洗衣机在排水时先执行预排水过程，在预排水过程中通过检测一段时间内集水结构中的水位变化判断是否存在排水异常。本申请的洗衣机在内桶的外部设置有集水结构，既能实现收集从内桶中排出的水，又能减少内桶和洗衣机的箱体之间占用的空间，实现良好的扩容效果；同时增加了预排水过程，通过检测集水结构中的水位变化，及时发现洗衣机的排水异常，避免水从集水结构中溢出至洗衣机内部的电器元件或者地面，避免给用户造成损失。

Description

一种洗衣机排水控制方法及洗衣机 技术领域
本发明属于洗衣机领域，具体地说，涉及一种洗衣机排水控制方法及洗衣机。
背景技术
洗衣机被设计成通过使用电来洗涤衣物的装置，一般来说，洗衣机包括：桶，用于容纳洗涤水；旋转桶，可旋转地安装在桶的内部；波轮，可旋转地安装在旋转桶的底部；电机和离合器，被构造成使旋转桶和波轮旋转。当旋转桶和波轮在衣物和洗涤剂被引入到旋转桶中的状态下旋转时，波轮与被引入到旋转桶中的衣物一起搅动洗涤水，从而从衣物去除污渍。
为了增加洗衣机的洗涤容量，需要更大的旋转桶，即需要增加旋转桶的高度或直径。如果旋转桶具有更大的尺寸，则容纳旋转桶的桶及容纳桶的机壳也需要随着旋转桶的增大而增大。
与洗衣机的外观对应的机壳的增大受到安装洗衣机的区域的空间的限制，一般的用户家中用于放置洗衣机的位置有限，增加洗衣机机壳来达到增加洗衣桶容量的目的不够现实，如如何在不增加洗衣机的机壳的前提下，增加洗衣桶的容量成为困扰设计者的一大难题。
为了增加洗涤桶的容量，申请人采用在洗衣桶外部设置集水结构的方式来扩大洗衣桶和洗衣机的机壳之间的空间。但在脱水排水时，申请人发现如果排水阀或者排水泵故障或者用户洗涤时忘记将排水管放下，此时无法排水，会导致水从集水结构溢出，流到地面或者洗衣机底部的电器件上，不仅会造成洗衣机故障，也对用户家居地面造成不良影响。
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，提供一种洗衣机排水控制方法及洗衣机，本发明的洗衣机在内桶的外部设置有集水结构，既能实现收集从内桶中排出的水，又能减少内桶和洗衣机的箱体之间占用的空间，实现良好的扩容效果；同时增加了预排水过程，通过检测集水结构中的水位变化，及时发现洗衣机的排水异常，避免水从集水结构中溢出至洗衣机内部的电器元件或者地面，避免给用户造成损失。
为解决上述技术问题，本发明采用技术方案的基本构思是：
本发明的第一目的是提供一种洗衣机的排水控制方法，洗衣机的内桶外部设有收集内桶中排出的水的集水结构，洗衣机的排水过程包括预排水过程和主排水过程，洗衣机在排水时先执行预排水过程，在预排水过程中通过检测一段时间内集水结构中的水位变化判断是否存在排水异常。
进一步的方案，所述的预排水过程为：洗衣机控制内桶的排水口与集水结构连通，使内桶中的水部分进入集水结构，然后关闭排水口，检测一段时间内集水结构中的水位变化，判断是否存在排水异常。
进一步的方案，预排水过程中，若一段时间内集水结构中水位下降，则洗衣机判断排水正常，进入主排水过程；若水位不下降，则判断存在排水异常，洗衣机保持内桶的排水口关闭。
或者，洗衣机设定水位下降的变化预设值L，若集水结构中水位下降的变化值大于L，则判断排水正常，若集水结构中水位下降的变化值小于或等于L，则判断排水异常。
进一步的方案，内桶的排水口处设有可打开/关闭排水口的封堵装置，洗衣机的排水管与集水结构连通，排水管中设有排水阀和/或排水泵；
洗衣机在预排水过程中，控制排水阀和/或排水泵打开，控制封堵装置打开内桶的排水口，内桶中的部分水进入到集水腔内后，洗衣机控制封堵装置关闭内桶的排水口，水位传感器检测一段时间内集水结构中的水位变化；
若水位下降的变化值大于变化预设值L，则洗衣机判断排水正常，再次控制封堵装置完全打开内桶的排水口，保持排水阀和/或排水泵处于打开状态，进入主排水过程；
若水位下降的变化值小于或等于变化预设值L，则洗衣机判断排水异常，控制封堵装置处于关闭内桶排水口的状态，并发出排水异常的提示。
进一步的方案，所述的一段时间为T1；在排水正常状态下，预排水过程中进入集水结构中的水全部排出所需要的时间为T2，其中，T1≥1/3T2；
优选的，1/3T2≤T1≤T2。
本发明的第二目的是提供一种具有如上所述的排水控制方法的洗衣机，包括箱体，设置于箱体内的内桶和用于驱动所述内桶转动的驱动装置，洗衣时内桶为盛水桶，内桶的外部设置有集水结构，在脱水和排水时，内桶中排出的水经由集水结构排出；还包括水位检测装置， 所述的水位检测装置与集水结构连通。
进一步的方案，所述的集水结构包括具有上开口的集水腔，所述内桶与集水腔的上开口连通；水位检测装置包括气室，所述的气室的下部与集水腔的底部连通。
进一步的方案，所述的水位检测装置还包括导压管和水位传感器，水位传感器设置在箱体内，气室上设有气室嘴，水位传感器通过导压管与气室上的气室嘴连接；
优选地，所述气室的气室嘴朝向箱体设置，所述的水位传感器安装在箱体上部或者洗衣机的控制盘座上；导压管竖直设置，其上端与水位传感器连接，下端与气室嘴连接。
进一步的方案，所述集水结构包括安装板和设置在安装板上的挡水筋，所述安装板与挡水筋围合形成集水腔，所述的气室设置在安装板上并位于挡水筋的外侧；
优选地，所述挡水筋为环状，所述挡水筋与安装板围合形成环状的集水腔；
所述挡水筋倾斜设置，并且所述挡水筋自上而下向集水腔的中轴线方向逐渐收缩，所述的气室位于倾斜的挡水筋的下方，且位于集水腔在水平方向的投影内。
进一步的方案，挡水筋外侧的安装板上设有竖直的弧形挡筋，所述的弧形挡筋的上端和两侧分别与挡水筋密封设置或者一体成型，弧形挡筋的下端与安装板密封设置或者一体成型；弧形挡筋、挡水筋和安装板共同围合成内部具有空腔的气室，与气室相对的挡水筋的底部设有开孔，将集水腔与气室连通，弧形挡筋上设有气室嘴。
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)本发明的洗衣机在内桶的外部设置有集水结构，既能实现收集从内桶中排出的水，又能减少内桶和洗衣机的箱体之间占用的空间，实现良好的扩容效果。
(2)本发明的洗衣机箱体内还设有水位检测结构，能够检测集水结构中的水位变化，及时发现洗衣机的排水异常，避免水从集水结构中溢出至洗衣机内部的电器元件或者地面，避免给用户造成损失。
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。
附图说明
附图作为本发明的一部分，用来提供对本发明的进一步的理解，本发明的示意性实施例及其说明用于解释本发明，但不构成对本发明的不当限定。显然，下面描述中的附图仅仅是一些实施例，对于本领域普通技术人员来说，在不付出创造性劳动的前提下，还可以根据这些附图获得其他附图。在附图中：
图1是本发明的洗衣机的剖面结构示意图；
图中：100、箱体 200、内桶 201、脱水口 202、脱水排出管路 203、出水口 204、排水口 205、封堵装置 205-1阀塞 205-2、电磁装置 300、驱动装置 301、电机 302、减速离合装置 303、输出轴 400、集水腔 401、排水管 500、安装板 501、挡水筋 600、悬吊减震件 601、吊杆 602、减震单元 700、安装件 701、安装部 801、水位传感器 802、气室 803、气室嘴 804、导压管 805、弧形挡筋
需要说明的是，这些附图和文字描述并不旨在以任何方式限制本发明的构思范围，而是通过参考特定实施例为本领域技术人员说明本发明的概念。
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。
实施例一
本实施例提供一种洗衣机的排水控制方法，洗衣机的内桶外部设有收集内桶中排出的水的集水结构，洗衣机的排水过程包括预排水过程和主排水过程，洗衣机在排水时先执行预排水过程，在预排水过程中通过检测一段时间内集水结构中的水位变化判断是否存在排水异常。
通过设置集水结构，在脱水和排水时，内桶200中排出的水可以经由集水结构排出。在 洗涤和漂洗时，内桶200为盛水桶，实现了内桶200外不设外桶，内桶200的可活动空间增加，减少了撞桶的可能，同时，集水结构能够减少对内桶200和箱体100之间空间的占用，使内桶口的活动空间增加，因此可以通过增加内桶200的直径的方式来增大其容积，实现有效扩容。
集水结构的上开口低于内桶的上开口设置，在排水存在异常时，容易发生水从集水结构中溢出的现象。本实施例在洗衣机排水时，增加预排水过程，或者说将洗衣机的排水过程分为预排水和主排水过程，先执行预排水，再执行主排水过程。预排水过程中内桶中排出少量的水，检测是否存在排水异常的情况。检测排水能够正常进行时再进行水量很大的主排水过程，可以避免发生水无法排出，而从集水结构中溢出的情况，保证洗衣机运行的安全性。
进一步的方案，所述的预排水过程为：洗衣机控制内桶的排水口与集水结构连通，使内桶中的水部分进入集水结构，然后关闭排水口，检测一段时间内集水结构中的水位变化，判断是否存在排水异常。
预排水过程中，进入集水结构的水量较少，进入集水结构内的水的体积不超过集水结构的容积，保证即使存在排水异常时，排出的水也可以收集在集水结构内，而不会从集水结构中溢出。进入集水结构的水量通过控制打开的内桶的排水口的程度和时间来判断。然后根据集水结构中的水位变化来判断排水是否正常。如此，可以避免出现目前洗衣机存在的直接进行大量排水(也就是主排水过程)，一旦存在排水故障则水大量溢出的情况。
具体的，预排水过程中，若一段时间内集水结构中水位下降，则洗衣机判断排水正常，进入主排水过程；若水位不下降，则判断存在排水异常，洗衣机保持内桶的排水口关闭；
或者，洗衣机设定水位下降的变化预设值L，若集水结构中水位下降的变化值大于或等于L，则判断排水正常，若集水结构中水位下降的变化值小于L，则判断排水异常。
一段时间内，集水结构中水位下降变化值大于或等于L，则说明排水正常，不存在堵塞，排水畅通，此种情况下，再排出内桶中大量的水，则不会出现溢水情况。若水位不下降，或者水位下降的程度没有达到预设值，则说明排水通道至少部分被堵塞，洗衣机保持内桶的排水口关闭，将洗涤水存留在内桶中，避免发生溢水现象。
变化预设值L可以根据洗衣机、集水结构、排水阀等的规格综合考虑设置，保证检测的排水正常与否的准确性。L的值可以设定为大于或等于0，当L设定为0时，则水位下降则判断为排水正常，水位不下降则判断为排水故障。
所述的一段时间是预设的时间，该段时间可以为在排水正常状态下，集水结构装盛的最 大体积的水完全排出所需要的时间，也可以为内桶的排水口打开一定时间内进入集水结构的水量能够完全排出所需要的时间。
进一步的，所述的一段时间为T1；在排水正常状态下，预排水过程中进入集水结构中的水全部排出所需要的时间为T2，其中，T1≥1/3T2；优选的，1/3T2≤T1≤T2。此种设置可以保证检测时间足够，保证水位检测变化的准确性。
进一步的具体的方案，内桶的排水口处设有可打开/关闭排水口的封堵装置，洗衣机的排水管与集水结构连通，排水管中设有排水阀和/或排水泵；
洗衣机在预排水过程中，控制排水阀和/或排水泵打开，控制封堵装置打开内桶的排水口，内桶中的部分水进入到集水腔内后，洗衣机控制封堵装置关闭内桶的排水口，水位传感器检测一段时间内集水结构中的水位变化；
若水位下降的变化值大于等于变化预设值L，则洗衣机判断排水正常，再次控制封堵装置完全打开内桶的排水口，保持排水阀和/或排水泵处于打开状态，进入主排水过程；
若水位下降的变化值小于变化预设值L，则洗衣机判断排水异常，控制封堵装置处于关闭内桶排水口的状态，并发出排水异常的提示。
排水时通过控制封堵装置中阀塞的动作，将阀塞拉回整个行程的部分距离，使内桶200上的排水口204与集水结构连通，使内桶200内部的水部分进入内外桶之间。此时内桶200底部的排水口204与阀塞在竖直方向上仍旧处于对准的状态。然后再控制电机反向动作，让阀塞再次将内桶200的排水口204堵上。通过检测随时间段内集水结构内的水位是否下降，来判断是否存在排水故障。
洗衣机的箱体内设置水位传感器，若水位传感器检测的水位下降，则说明洗衣机排水正常，洗衣机则进行正常排水；若水位不下降，则说明排水阀或者排水泵故障或者用户洗涤时忘记将排水管放下，存在排水异常，此时洗衣机则保持内桶的排水口关闭，不会排水，并且发出报警，提醒用户存在排水异常，便于用户及时处理。
实施例二
如图1所示，本实施例提供一种具有如实施例一所述的排水控制方法的洗衣机，洗衣机包括箱体100，设置于箱体100内的内桶200和用于驱动所述内桶200转动的驱动装置300，洗衣时内桶200为盛水桶，内桶200的外部设置有集水结构，在脱水和排水时，内桶200中排出的水经由集水结构排出；还包括水位检测装置，所述的水位检测装置与集水结构连通。
通过设置集水结构，在脱水和排水时，内桶200中排出的水可以经由集水结构排出。在洗涤和漂洗时，内桶200为盛水桶，实现了内桶200外不设外桶，内桶200的可活动空间增加，减少了撞桶的可能，同时，集水结构能够减少对内桶200和箱体100之间空间的占用，使内桶口的活动空间增加，因此可以通过增加内桶200的直径的方式来增大其容积，实现有效扩容。
水位检测装置与集水结构连通，可以随时监测集水结构中的水位，洗衣机可以通过集水结构中水位的变化来判断是否存在排水异常，可以避免水从集水结构中溢出至洗衣机内部的电器元件或者地面，避免造成洗衣机故障，给用户造成损失。
所述的集水结构包括具有上开口的集水腔400，所述内桶200与集水腔400的上开口连通；水位检测装置包括气室802，所述的气室802的下部与集水腔400的底部连通。
所述集水腔400的上开口低于内桶200的内桶口设置。集水腔400上开口的高度可以根据需要设置，集水腔400的上开口高度可以为内桶200的一半，也可以为三分之一，或者其它适合的高度。优选的方案，集水腔400整体位于内桶200的桶底以下，集水腔400的上开口低于内桶200的桶底。如此，集水腔400不具有位于内桶200和箱体100之间的结构，不用在内桶200和集水结构之间设置一定的安全距离，防止内桶200碰撞到集水结构造成损坏，同时也不用在集水结构和箱体100之间再设置安全距离，因此仅设计内桶200与箱体100之间的安全距离即可，可以大大增加内桶200桶径，更好的实现内桶200的扩容。
水位检测装置设置在箱体100内，气室802的下部与集水腔400连通，当集水腔400中进水时，水同时进入到气室802内，气室802内的水位高度与集水腔400中的水位高度会保持一致。气室802中水位的变化也与集水结构中的水位变化保持一致，气室802内的水位变化导致气室802内的压力发生变化。因此，水位检测装置可以通过气室802内的压力变化检测集水结构中的水位的变化，从而判断排水是否正常。
为了进一步减小碰撞，作为较优选的实施方式，所述集水腔400的侧壁与所述内桶200的桶底的外壁之间间隔一定间距。
通过使集水腔的侧壁上端低于内桶的桶底，并且使集水腔的侧壁与内桶200的桶底的外壁之间间隔一定间距，防止洗衣桶，也就是内桶震动时与集水腔的侧壁碰撞，可以延长集水腔的使用寿命。
所述的水位检测装置还包括导压管804和水位传感器801，水位传感器801设置在箱体100内，气室802上设有气室嘴803，水位传感器801通过导压管804与气室802上的气室嘴 803连接。
水位传感器801设置在箱体100内部，可以安装在箱体100的侧壁上，也可以安装在箱体100上部的控制盘座等结构上，导压管804与气室802的气室嘴803密封连接，因此水位传感器801可以通过导压管804检测气室802内压力的变化，并将检测的水位信号传送给洗衣机的控制装置，洗衣机可以根据水位信号作出判断。
所述气室802的气室嘴803朝向箱体100设置，所述的水位传感器801安装在箱体100上部或者洗衣机的控制盘座上；导压管804竖直设置，上端与水位传感器801连接，下端与气室嘴803连接。
水位传感器801安装在箱体100上部或者洗衣机的控制盘座上，避免占用内桶200与箱体100之间的空间，同时导压管804上下竖直设置，可以避免弯折，保证水位检测装置检测到的水位的准确性。
所述集水腔400上设有用于将集水结构内的水排出的排水管401，所述排水管401延伸至洗衣机外。
所述内桶200包括在甩干时用于脱水的脱水口201和与脱水口201连通的脱水排出管路202，所述脱水排出管路202的出水口203与集水结构连通。洗衣桶甩干时从上部甩出的水通过脱水口201、脱水排出管路202将排入集水结构中，进而通过排水管401排出洗衣机。
实施例三
如图1所示，本实施例为实施例二的进一步的限定，本实施例中，集水结构包括安装板500和设置在安装板500上的挡水筋501，所述安装板500与挡水筋501围合形成集水腔400，所述的气室802设置在安装板500上并位于挡水筋501的外侧。
安装板500为水平板，挡水筋501设置在安装板500上，并与安装板500固定密封设置或者一体成型。安装板500与挡水筋501二者围合形成集水腔400，安装板500的形成集水腔400的底壁，挡水筋501才形成集水腔400的侧壁，如此结构简单，便于加工成型。
优选的方式，集水腔400位于安装板500的中部，使挡水装置的重心更容易与中心重合，减少偏移。所述挡水筋501为环状，所述挡水筋501与安装板500围合形成环状的集水腔400。
气室802设置在安装板500上，位于挡水筋501外侧，便于将气室802的底部和集水腔400的底部连通，从而保持气室802和集水腔400中水位的变化始终保持一致。同时，气室802可以与安装板500或者挡水筋501固定设置或者一体成型，也便于安装或者一体加工。
气室802可以作为单独的件，固定在安装板500上，气室802通过管道与集水腔400连 通；或者，气室802也可以设置在挡水筋501的外壁上，与挡水筋501和/或安装板500一体化设置，并借助挡水筋501或者安装板500形成一侧壁或者底壁，从而保持气室802与集水腔400相对固定，保证气室802与集水腔400始终连通。
作为较优选的方案，为了节省材料，便于加工和安装，挡水筋501外侧的安装板500上设有竖直的弧形挡筋805，所述的弧形挡筋805的上端和两侧分别与挡水筋501外壁密封设置或者一体成型，弧形挡筋805的下端与安装板500密封设置或者一体成型；弧形挡筋805、挡水筋501和安装板500共同围合成内部具有空腔的气室802，与气室802相对的挡水筋501的底部设有开孔，将集水腔400与气室802连通，弧形挡筋805上设有气室嘴803。
本方案的气室802借助挡水筋501设置，也就是气室802和集水腔400之间共用部分挡水筋501，气室802的侧壁由弧形挡筋805围成，弧形挡筋805与安装板500和/或挡水筋501可以一体成型或者固定密封连接。气室802与集水腔400之间共用的挡水筋501的底部设有开孔，气室802通过此开孔与集水腔400连通。(由于图1为剖面图，未经过开孔，图1中无法标注。)集水腔400中的水可以通过此开孔进入到集水腔400中，使两者的水位始终保持一致。此种设置在加工集水结构时一体形成气室802，减小安装的工作量，保持气室802与集水腔400始终连通。
进一步的方案，所述挡水筋501倾斜设置，并且所述挡水筋501自上而下向集水腔400的中轴线方向逐渐收缩，所述的气室802位于倾斜的挡水筋501的下方，且位于集水腔400在水平方向的投影内。
通过将挡水筋501设置成倾斜状，能够最大限度的增加集水量，更便于使用；所述挡水筋501自上而下向集水腔400的中轴线方向逐渐收缩，使上开口口径更大，更加便于收集。气室802位于倾斜的挡水筋501的下方，位于集水腔400在水平方向的投影内，也就不会相对集水腔400的最外周向外突出，可以避免与箱体100的碰撞，避免气室802受损坏。
进一步地，所述内桶200的底部外壁为弧面，所述挡水筋501与内桶200的弧面间隔一定间距。
进一步地，所述内桶200在水平方向的投影覆盖所述集水腔400在水平方向的投影。通过将内桶200在水平方向的投影覆盖所述集水腔400在水平方向的投影，增加集水腔400与箱体100之间的距离，防止集水腔400与箱体100碰撞，可以减少集水腔400损坏；同时集水腔400体积小，更便于箱体100底部其他装置的安装。
所述内桶200在水平方向的投影也可以小于所述集水腔400在水平方向的投影，能够收 集的水更多。
进一步地，安装板500上设有排水管401，排水管401的一端与集水腔400连通，另一端通至洗衣机外或者与洗衣机的总的排水管401路连通，将水排出。
进一步地，内桶200桶壁上设有脱水口201和与脱水口201连通的脱水排出管路202，所述脱水排出管路202的出水口203设置在集水腔400的上开口的上方。脱水口201和脱水排出管路202均为多个，每个脱水口201分别与相对应的脱水排出管路202，也可以多个脱水口201对应一个脱水排出管路202，当洗衣机执行甩干程序时，由于洗衣桶的离心作用而被甩出的水通过脱水口201进入脱水排出管路202，并通过脱水排出管路202的出水口203进入集水腔400，收集在集水腔400中，通过排水管401排出。
所述脱水排出管路202的出水口203设置在集水腔400的上开口的上方。通过将出水口203与集水结构连通，甩干时水经脱水口201进入脱水排出管路202再经出水口203进入集水腔400；出水口203设置在挡水筋501501围成的集水腔400的上开口的上方，从出水口203排出的水直接落入集水腔400，该结构更加简单，无需增加其他附加部件，集水效果更好。
进一步的方案，所述内桶200还包括在排水和脱水时用于将内桶200内的水排入集水腔400的排水口204，排水口204与集水腔400之间设有封堵装置，所述封堵装置在排水和/或脱水时将排水口204打开，在洗衣时将所述排水口204封堵；
优选地，所述排水口204设置所述集水腔400的上开口的上方，所述封堵装置设置在排水口204的下部。
洗衣机为波轮洗衣机。
所封堵装置205包括阀塞205-1和设置在阀塞205-1下的电磁装置205-2，电磁装置205-2与洗衣机的控制装置电连接，当洗衣机处于洗衣状态时，阀塞205-1将排水口204封堵防止内桶200中的水排出，当洗衣机处于排水或脱水状态时，所述电磁装置205-2控制阀塞205-1向下运动，使排水口204开启，将水排入挡水结构中。
安装板500上设有定位装置，内桶200底壁上设有与定位装置向匹配的配合部，配合部可以为定位凹槽，定位装置在排水和/或甩干时，定位装置与配合部脱离，内桶200随输出轴303转动，当洗衣机处于洗衣状态时，定位装置与配合部配合，将内桶200卡在安装板500上，阀塞205-1正好与排水口204相对，将排水口204封堵防止内桶200中的水排出，输出轴带动洗衣机内的波轮转动。
进一步地，所述安装板500设置在内桶200与驱动装置300之间，所述安装板500的下部与驱动装置300的外壳固定连接。通过将安装板500设置在内桶200与驱动装置300之间，一方面内桶200中的水能够依靠自重下降，自动流入挡水结构，另一方面安装板500设置在驱动装置300的上部，将水与驱动装置300隔离，防止水对驱动装置300造成的损坏。
驱动装置300包括电机301，电机301上方设有减速离合装置302，安装板500的下部与减速离合器或与电机301的外壳固定连接。
安装板500与驱动装置300的连接方式还可以为：所述安装板500与驱动装置300的输出轴303之间通过轴承连接。
进一步地，减速离合器的输出轴303穿过所述安装板500与内桶200连接，驱动内桶200的转动，安装板500与驱动装置300的输出轴303之间通过轴承连接。
实施例四
如图1所示，本实施例为实施例二或者实施例三的进一步的限定，本实施例提供的洗衣机还包括悬吊减震件600和设置在内桶下部的安装件700，所述驱动装置300安装在所述安装件700上，所述悬吊减震件600的一端与箱体100连接，另一端与安装件700连接。
通过在内桶下设置安装件700，将悬吊减震件600安装在安装件700上，由于安装件700较内桶位置更靠下，降低了安装部701的纵向的高度，使安装后的悬吊减震件600与箱体侧壁之间的倾斜角度θ减小，进而使悬吊减震件600的占用空间减小，当将该结构悬吊于内桶与箱体100之间时，便能够实现在不增加箱体100体积的前提下增加内桶的直径，实现扩容的目的。
进一步地，所述安装件700包括用于与悬吊减震件600装配的安装部701，所述安装部701不高于所述内桶的桶底。
安装部701不高于内桶的桶底，使其不占用内桶与箱体100之间的空间，能够增加内桶的直径，实现扩容。
悬吊减震件包括吊杆601和减震单元602，吊杆和减震单元连接，减震单元装配在安装部下方，吊杆穿过安装部，悬挂在箱体的上部。减震单元的上端抵靠在安装部中。
进一步地，所述安装部701位于所述内桶的桶底以下，当悬吊减震件600与安装部701装配后，由于安装部701设置的低于内桶的桶底，使悬吊减震件600与箱体100之间形成的倾斜角的角度减小，即，使悬吊减震件600与箱体100的内壁更加贴合，为内桶预留了更充 裕的空间，因此可以通过增加内桶的直径实现扩容的目的。
进一步地，所述安装部701在水平方向的投影位于所述内桶在水平方向的投影的外围。
由于安装部701设置在内桶的桶底以下，不占用内桶与箱体100之间的空间，安装部701不会与内桶产生碰撞，在这个前提下，将安装部701在水平方向上延伸至内桶桶壁以外，使安装部701在水平方向的投影位于所述内桶在水平方向的投影的外围，进一步的减少了悬吊减震件600的安装空间，进而增加了内桶的安装空间，实现内桶的扩容。
进一步地，所述输出轴303穿过安装件700与内桶连接用于驱动内桶转动，所述安装件700与输出轴303通过轴承连接。
其中，安装件700也可以与驱动装置300的外壳固定连接，将安装件700、驱动装置300和内桶成为一相对独立的整体；安装件700也可以与驱动装置300的外壳固定连接的同时与输出轴303通过轴承连接，将安装件700、驱动装置300和内桶成为一相对独立的整体。
所述安装件700与输出轴303通过轴承连接和/或与驱动装置300的外壳固定连接，使安装件700、驱动装置300和内桶成为一相对独立的整体，通过减震件减少安装件700的震动进而实现减少内桶、驱动装置300的震动，进而实现良好的减震效果。
所述安装件700为中心对称结构，所述悬吊减震件600为多个，多个所述的悬吊减震件600均匀分布在安装件700的四周。
实施例二中的安装板即为安装件的一部分，安装板为安装件的上部的结构。通过将安装板500设置为中心对称结构，降低安装板500、内桶和电机301整体重心偏离的可能，实现更好的减震效果；将安装板500设置为圆形，一方面便于安装驱动装置300，另一方面使结构更加平稳。
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. 一种洗衣机的排水控制方法，其特征在于，洗衣机的内桶外部设有收集内桶中排出的水的集水结构，洗衣机的排水过程包括预排水过程和主排水过程，洗衣机在排水时先执行预排水过程，在预排水过程中通过检测一段时间内集水结构中的水位变化判断是否存在排水异常。
  2. 根据权利要求1所述的一种洗衣机的排水控制方法，其特征在于，所述的预排水过程为：洗衣机控制内桶的排水口与集水结构连通，使内桶中的水部分进入集水结构，然后关闭排水口，检测一段时间内集水结构中的水位变化，判断是否存在排水异常。
  3. 根据权利要求2所述的一种洗衣机的排水控制方法，其特征在于，预排水过程中，若一段时间内集水结构中水位下降，则洗衣机判断排水正常，进入主排水过程；若水位不下降，则判断存在排水异常，洗衣机保持内桶的排水口关闭；
    或者，洗衣机设定水位下降的变化预设值L，若集水结构中水位下降的变化值大于L，则判断排水正常，若集水结构中水位下降的变化值小于或等于L，则判断排水异常。
  4. 根据权利要求3所述的一种洗衣机的排水控制方法，其特征在于，内桶的排水口处设有可打开/关闭排水口的封堵装置，洗衣机的排水管与集水结构连通，排水管中设有排水阀和/或排水泵；
    洗衣机在预排水过程中，控制排水阀和/或排水泵打开，控制封堵装置打开内桶的排水口，内桶中的部分水进入到集水腔内后，洗衣机控制封堵装置关闭内桶的排水口，水位传感器检测一段时间内集水结构中的水位变化；
    若水位下降的变化值大于变化预设值L，则洗衣机判断排水正常，再次控制封堵装置完全打开内桶的排水口，保持排水阀和/或排水泵处于打开状态，进入主排水过程；
    若水位下降的变化值小于或等于变化预设值L，则洗衣机判断排水异常，控制封堵装置处于关闭内桶排水口的状态，并发出排水异常的提示。
  5. 根据权利要求1-4任意一项所述的洗衣机的排水控制方法，其特征在于，所述的一段时间为T1；在排水正常状态下，预排水过程中进入集水结构中的水全部排出所需要的时间为T2，其中，T1≥1/3T2；
    优选的，1/3T2≤T1≤T2。
  6. 一种具有1-5任意一项所述的排水控制方法的洗衣机，其特征在于，包括箱体，设置于箱体内的内桶和用于驱动所述内桶转动的驱动装置，洗衣时内桶为盛水桶，内桶的外部设 置有集水结构，在脱水和排水时，内桶中排出的水经由集水结构排出；还包括水位检测装置，所述的水位检测装置与集水结构连通。
  7. 根据权利要求6所述的洗衣机，其特征在于，所述的集水结构包括具有上开口的集水腔，所述内桶与集水腔的上开口连通；水位检测装置包括气室，所述的气室的下部与集水腔的底部连通。
  8. 根据权利要求7所述的洗衣机，其特征在于，所述的水位检测装置还包括导压管和水位传感器，水位传感器设置在箱体内，气室上设有气室嘴，水位传感器通过导压管与气室上的气室嘴连接；
    优选地，所述气室的气室嘴朝向箱体设置，所述的水位传感器安装在箱体上部或者洗衣机的控制盘座上；导压管竖直设置，其上端与水位传感器连接，下端与气室嘴连接。
  9. 根据权利要求7或8所述的洗衣机，其特征在于，所述集水结构包括安装板和设置在安装板上的挡水筋，所述安装板与挡水筋围合形成集水腔，所述的气室设置在安装板上并位于挡水筋的外侧；
    优选地，所述挡水筋为环状，所述挡水筋与安装板围合形成环状的集水腔；
    所述挡水筋倾斜设置，并且所述挡水筋自上而下向集水腔的中轴线方向逐渐收缩，所述的气室位于倾斜的挡水筋的下方，且位于集水腔在水平方向的投影内。
  10. 根据权利要求9所述的洗衣机，其特征在于，挡水筋外侧的安装板上设有竖直的弧形挡筋，所述的弧形挡筋的上端和两侧分别与挡水筋密封设置或者一体成型，弧形挡筋的下端与安装板密封设置或者一体成型；弧形挡筋、挡水筋和安装板共同围合成内部具有空腔的气室，与气室相对的挡水筋的底部设有开孔，将集水腔与气室连通，弧形挡筋上设有气室嘴。
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