WO2020151556A1 - 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
WO2020151556A1
WO2020151556A1 PCT/CN2020/072354 CN2020072354W WO2020151556A1 WO 2020151556 A1 WO2020151556 A1 WO 2020151556A1 CN 2020072354 W CN2020072354 W CN 2020072354W WO 2020151556 A1 WO2020151556 A1 WO 2020151556A1
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Prior art keywords
water
drainage
water level
washing machine
drain
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PCT/CN2020/072354
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English (en)
French (fr)
Inventor
刘尊安
方大丰
姜同春
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青岛海尔洗衣机有限公司
海尔智家股份有限公司
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Publication of WO2020151556A1 publication Critical patent/WO2020151556A1/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
    • D06F39/083—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
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/006—Recovery arrangements, e.g. for the recovery of energy or water
    • 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
    • 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
    • D06F39/087—Water level measuring or regulating devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the invention belongs to the field of washing machines, and specifically relates to a washing machine drainage control method and a washing machine.
  • the washing machine is designed as a device for washing clothes by using electricity.
  • the washing machine includes: a tub for containing washing water; a rotating tub, which is rotatably installed inside the tub; and a pulsator, which is rotatably installed on the rotating tub.
  • the bottom of the motor and clutch are configured to rotate the rotating barrel and pulsator.
  • a larger rotating tub is required, that is, the height or diameter of the rotating tub needs to be increased. If the rotating barrel has a larger size, the barrel accommodating the rotating barrel and the cabinet of the accommodating barrel also need to be enlarged as the rotating barrel increases.
  • the increase of the cabinet corresponding to the appearance of the washing machine is limited by the space of the area where the washing machine is installed.
  • the space for placing the washing machine in the average user’s home is limited. It is not realistic to increase the washing machine cabinet to increase the capacity of the washing tub. Without increasing the casing of the washing machine, increasing the capacity of the washing tub has become a major problem that plagues designers.
  • the applicant adopted a method of arranging a water collection structure outside the washing tub to expand the space between the washing tub and the casing of the washing machine.
  • the applicant found that if the drain valve or drain pump fails or the user forgets to put the drain pipe down during washing, the water cannot be drained at this time, which will cause the water to overflow from the water collection structure and flow to the ground or the electrical components at the bottom of the washing machine. , Will not only cause the washing machine to malfunction, but also cause adverse effects on the user's home floor.
  • the technical problem to be solved by the present invention is to overcome the shortcomings 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 collection structure outside the inner tub, which can not only collect the water discharged from the inner tub, It can also reduce the space occupied between the inner tub and the box of the washing machine, and achieve a good expansion effect; at the same time, it can detect the abnormal drainage of the washing machine in time, avoid water overflow from the water collection structure to the electrical components or the ground inside the washing machine, and avoid giving users Cause losses.
  • the first object of the present invention is to provide a washing machine drainage control method and a washing machine.
  • the inner tub of the washing machine is a tub, and a water collection structure is provided on the outside to collect the water discharged from the inner tub.
  • the first preset water level is set during the drainage process of the washing machine. If the water level in the water collection structure reaches the first preset water level, control to stop drainage and detect whether there is drainage abnormality.
  • the washing machine detects in real time whether the water level reaches the first preset water level during the draining process, and if the water level in the water collection structure does not reach the first preset water level, the drainage continues, and if it reaches the first preset water level, the control stops Drain and detect whether there is an abnormal drainage, if there is an abnormal drainage, a prompt will be issued, if not, the drainage will restart.
  • the method for detecting whether there is abnormal drainage during the drainage process includes: detecting whether the water level in the water collection structure drops or whether the change value of the water level drop is greater than a preset value within a period of time.
  • the washing machine judges that the drainage is normal and restarts the drainage; if the water level does not drop, it is judged that there is an abnormal drainage, and the washing machine keeps the drain port of the inner tub closed and emits prompt;
  • the washing machine sets the preset value M for the change of the water level drop. If the change value of the water level drop in the water collection structure is greater than M, it is judged that the drainage is normal; if the change value of the water level drop in the water collection structure is less than or equal to M, the water drainage is judged abnormal.
  • the drain port of the inner tub is provided with a plugging device that can open/close the drain port
  • the drain pipe of the washing machine is connected to the water collection structure
  • the drain pipe is provided with a drain valve and/or a drain pump
  • the washing machine judges that the drainage is normal, and again controls the blocking device to open the drain port of the inner tub, keep the drain valve and/or drain pump in an open state, and continue to drain;
  • the washing machine judges that the drain is abnormal, controls the blocking device to close the drain port of the inner tub, and sends out an abnormal drain prompt.
  • a second preset water level is also set during the drainage process, and the height of the second preset water level is greater than the height of the first preset water level;
  • the washing machine starts to control the amount of water discharged from stopping water drainage to completely stop water drainage so that the water level in the water collection structure is still lower than the second preset water level.
  • the washing machine controls the drain outlet to close for a certain period of time until the water level is lower than the first preset water level, The control starts to drain again.
  • the washing machine performs the pre-drainage process before performing the draining process.
  • the water level change in the water collection structure for a period of time is detected to determine whether there is any abnormal drainage. If there is no abnormality, it will enter the drainage process. If there is drainage If it is abnormal, the washing machine keeps the drain port of the inner tub closed, stops draining, and issues a drain exception prompt.
  • the pre-drainage process is as follows: the washing machine controls the drain port of the inner tub to be connected to the water collection structure, so that the water in the inner tub enters the water collection structure, and then closes the drain port to detect the water level in the water collection structure for a period of time Change to determine whether there is an abnormal drainage.
  • the second object of the present invention is to provide a washing machine with the above-mentioned drainage control method, comprising a box body, an inner tub arranged in the box body, and a driving device for driving the inner tub to rotate.
  • the inner tub is a water tub during washing.
  • a water collection structure is arranged on the outside of the inner tub. During dehydration and drainage, the water discharged from the inner tub is discharged through the water collection structure; it also includes a water level detection device, which is connected with the water collection structure.
  • 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 outside the inner tub, which can not only collect the water discharged from the inner tub, but also reduce the space occupied between the inner tub and the box of the washing machine, and achieve a good capacity expansion effect.
  • the washing machine box of the present invention is also provided with a water level detection structure, which can detect the water level change in the water collection structure.
  • the first preset water level and the second preset water level are set during the draining process, and the abnormal drainage of the washing machine can be detected in time , To prevent water from overflowing from the water collection structure to the electrical components or the ground inside the washing machine, and to avoid causing losses to users.
  • Figure 1 is a schematic flow chart of a drainage control method of the present invention
  • FIG. 2 is a schematic diagram of the washing machine structure of the present invention.
  • FIG. 3 is a schematic sectional view of the washing machine of the present invention.
  • This embodiment provides a method for controlling the drainage of a washing machine.
  • the inner tub of the washing machine is a tub, and a water collection structure is provided on the outside to collect the water discharged from the inner tub.
  • the first preset water level 901 is set during the drainage process of the washing machine. If the water level in the middle reaches the first preset water level 901901, control to stop water drainage and detect whether there is a drainage abnormality.
  • the inner bucket When washing and rinsing, the inner bucket is a water bucket, which realizes that there is no outer bucket outside the inner bucket, and the movable space of the inner bucket increases, reducing the possibility of hitting the bucket.
  • the water collection structure can reduce the space between the inner bucket and the box. Occupation increases the movement space of the inner barrel mouth, so the volume of the inner barrel can be increased by increasing the diameter of the inner barrel to achieve effective capacity expansion.
  • the water discharged from the inner tub can be discharged through the water collection structure during dehydration and drainage. Since the upper opening of the water collection structure is lower than the upper opening of the inner tub, when the drainage is abnormal, the phenomenon of water overflowing from the water collection structure is likely to occur.
  • the first preset water level 901 is preset, and the water level can be used as an alarm water level.
  • the washing machine controls to stop draining, and at the same time, detects whether there are drainage abnormalities such as the drain pipe being hung or blocked, so as to avoid excessive water in the water collection structure that exceeds the maximum height of the water collection structure and overflows. Ensure the safe operation of the washing machine.
  • the washing machine detects in real time whether the water level reaches the first preset water level 901 during the draining process, and if the water level in the water collection structure does not reach the first preset water level 901, the drain is continued. If the first preset water level 901 is reached, Then the control stops the drainage and detects whether there is a drainage abnormality, if there is a drainage abnormality, a prompt is issued, and if it does not exist, the drainage is restarted.
  • the washing machine is equipped with a water level monitoring device, which detects the water level in the water collection structure in real time during the draining process of the washing machine, and transmits the detected water level information to the control device.
  • a water level monitoring device which detects the water level in the water collection structure in real time during the draining process of the washing machine, and transmits the detected water level information to the control device.
  • the washing machine judges that there is no risk of water overflow and continues to drain.
  • the first preset water level 901 is reached, if there is an abnormal drainage, it is very easy to occur A large amount of water accumulates in the water collection structure, which is prone to overflow problems.
  • controlling to stop the drainage and detecting whether there is abnormal drainage can timely judge the drainage situation and avoid the occurrence of overflow.
  • the washing machine will issue a reminder to remind the user to check the drainage pipe to avoid wasting the user's time and avoid accidents. If no abnormal drainage is detected, the drainage will restart to ensure smooth drainage.
  • the method for detecting whether there is abnormal drainage during the drainage process includes: detecting whether the water level in the water collection structure drops or whether the change value of the water level drop is greater than a preset value within a period of time.
  • Option 1 During the draining process of the washing machine, if the water level in the water collection structure drops for a period of time, the washing machine judges that the drain is normal and starts to drain; if the water level does not drop, it is judged that there is an abnormal drain, and the washing machine keeps the drain port of the inner tub closed and sends a prompt ;
  • the washing machine sets the preset value M for the change of the water level drop. If the change value of the water level drop in the water collection structure is greater than M, it is judged that the drainage is normal; if the change value of the water level drop in the water collection structure is less than or equal to M, it is judged The drainage is abnormal.
  • the water level drop change value in the water collection structure is greater than or equal to M, indicating that the drainage is normal, there is no clogging, and the drainage is unblocked. In this case, if the water in the inner bucket continues to be discharged, there will be no overflow. If the water level does not drop, or the degree of water level drop does not reach the preset value, it means that the drainage channel is at least partially blocked.
  • the washing machine keeps the drain port of the inner tub closed and stores the washing water in the inner tub to avoid overflow.
  • variable preset value M can be set according to the specifications of the washing machine, water collection structure, drain valve, etc., to ensure the accuracy of the detected drain.
  • the value of M can be set to be greater than or equal to 0.
  • the stated period of time is a preset period of time. This period of time can be the time required for the maximum volume of water contained in the water collection structure to be completely discharged under normal drainage conditions, or it can be a certain period of time when the drain of the inner bucket is opened. The time required for the amount of water entering the water collection structure to be completely discharged.
  • the drain port of the inner tub is provided with a plugging device that can open/close the drain port
  • the drain pipe of the washing machine is connected to the water collection structure
  • the drain pipe is provided with a drain valve and/or a drain pump
  • the washing machine judges that the drainage is normal, and again controls the blocking device to open the drain port of the inner tub, keep the drain valve and/or drain pump in an open state, and continue to drain;
  • the washing machine judges that the drain is abnormal, controls the blocking device to close the drain port of the inner tub, and sends out an abnormal drain prompt.
  • a second preset water level 902 is also set during the drainage process, and the height of the second preset water level 902 is greater than the height of the first preset water level 901.
  • the second preset water level 902 can be used as the overflow water level, and the overflow water level can generally be set preferably 10-20 mm lower than the upper end surface of the water collection structure.
  • the water level is a high water level. When the water level reaches the overflow water level, it is very prone to overflow. Therefore, it is necessary to control the water level in the water collection structure to be lower than the overflow water level.
  • the washing machine starts to control the water discharge amount from stopping water drainage to completely stop water drainage so that the water level in the water collection structure is still lower than the second preset water level 902.
  • the washing machine detects that the water level in the water collection structure reaches the first preset water level 901 (alarm water level), and immediately controls to stop draining.
  • the process operation process also takes a certain time, and there will still be some washing water in the process.
  • the water level of the water collection structure rises to a certain height.
  • the specific heights of the first preset water level 901 and the second preset water level 902 are set by calculation to ensure that even if the drain pipe is hung or blocked, the washing machine will start to stop draining to completely stop draining the water, so that the water collection structure The water level is still not higher than the overflow water level to prevent the occurrence of overflow.
  • the washing machine controls the drain outlet to close for a certain period of time until the water level is lower than the first preset water level 901 When, the control starts to drain again.
  • the water level in the water collection structure reaches the first preset water level 901, and the washing machine controls to stop draining, but when the drain is detected to be normal and there is no abnormal phenomenon, the second judgment is performed to ensure that the water level does not exceed the alarm water level before continuing to drain , So as to further avoid the occurrence of overflow.
  • this embodiment is a further limitation of the first embodiment. It provides a drainage control method for a washing machine.
  • the inner tub of the washing machine is provided with a water collecting structure that collects the water discharged from the inner tub.
  • the process includes the pre-draining process and the main draining process executed in sequence.
  • the washing machine performs the pre-draining process when draining.
  • the water level changes in the water collection structure for a period of time are detected to determine whether there is any abnormal drainage.
  • the washing machine keeps the drain opening of the inner tub closed and sends out a drain abnormal warning.
  • the main draining process described in this embodiment is equivalent to the draining process described in the first embodiment.
  • the difference from the first embodiment is that the pre-draining process is added before the draining process when the washing machine is drained in this embodiment.
  • the drainage process of the washing machine is divided into pre-drainage and main drainage.
  • the pre-drainage is performed first, and then the main drainage process.
  • the main drainage process is equivalent to the drainage process in the first embodiment.
  • a small amount of water is discharged from the inner bucket to detect whether there is abnormal drainage.
  • the main drainage process with a large amount of water is performed when the detection drainage can be performed normally, which can avoid the situation that the water cannot be discharged and overflow from the water collection structure, and the safety of the washing machine is guaranteed.
  • the pre-drainage process is as follows: the washing machine controls the drain port of the inner tub to be connected to the water collection structure, so that the water in the inner tub enters the water collection structure, and then closes the drain port to detect the water level in the water collection structure for a period of time Change to determine whether there is an abnormal drainage.
  • the amount of water entering the water collection structure is small, and the volume of water entering the water collection structure does not exceed the volume of the water collection structure, ensuring that even if there is abnormal drainage, the discharged water can be collected in the water collection structure. It will not overflow from the catchment structure.
  • the amount of water entering the water collection structure is judged by controlling the degree and time of the drain opening of the inner bucket that is opened. Then judge whether the drainage is normal according to the change of the water level in the catchment structure. In this way, it is possible to avoid the situation that a large amount of water is directly drained (that is, the main drain process) in the current washing machine, and a large amount of water overflows once there is a drain failure.
  • the washing machine judges that the drainage is normal and enters the main drainage process; if the water level does not drop, it is judged that there is an abnormal drainage, and the washing machine keeps the drain port of the inner tub closed;
  • the washing machine sets the preset value L for the change of the water level drop. If the change value of the water level drop in the water collection structure is greater than or equal to L, it is judged that the drainage is normal; if the change value of the water level drop in the water collection structure is less than L, it is judged that the drainage abnormal.
  • the drop of the water level in the water collection structure is greater than or equal to L, indicating that the drainage is normal, there is no clogging, and the drainage is unblocked. In this case, if a large amount of water is discharged from the inner bucket, there will be no overflow. If the water level does not drop, or the degree of water level drop does not reach the preset value, it means that the drainage channel is at least partially blocked.
  • the washing machine keeps the drain port of the inner tub closed and stores the washing water in the inner tub to avoid overflow.
  • the change preset value L can be set according to the specifications of the washing machine, water collection structure, drain valve, etc., to ensure the accuracy of the detected drain.
  • the value of L can be set to be greater than or equal to 0. When L is set to 0, the water level drops and it is judged as normal drainage, and the water level does not drop, it is judged as drainage failure.
  • the stated period of time is a preset period of time. This period of time can be the time required for the maximum volume of water contained in the water collection structure to be completely discharged under normal drainage conditions, or it can be a certain period of time when the drain of the inner bucket is opened. The time required for the amount of water entering the water collection structure to be completely discharged.
  • T1 in the normal state of draining, the time required for all the water entering the water collection structure to be discharged during the pre-drainage process is T2, where T1 ⁇ 1/3T2; preferably, 1/ 3T2 ⁇ T1 ⁇ T2.
  • T1 ⁇ 1/3T2 preferably, 1/ 3T2 ⁇ T1 ⁇ T2.
  • the drain port of the inner tub is provided with a plugging device that can open/close the drain port
  • the drain pipe of the washing machine is connected to the water collection structure
  • the drain pipe is provided with a drain valve and/or a drain pump
  • the drain valve and/or drain pump are controlled to open, and the blocking device is controlled to open the drain port of the inner tub.
  • the washing machine controls the blocking device to close the drain port of the inner tub ,
  • the water level sensor detects the water level change in the water collection structure within a period of time;
  • the washing machine judges that the drain is normal, and again controls the blocking device to fully open the drain port of the inner tub, keep the drain valve and/or drain pump in an open state, and enter the main drain process;
  • the washing machine judges that the drainage is abnormal, controls the blocking device to close the drain port of the inner tub, and sends out an abnormal drainage prompt.
  • valve plug When draining, by controlling the action of the valve plug in the blocking device, the valve plug is pulled back to a part of the distance of the entire stroke, so that the drain port 204 on the inner tub 200 is connected with the water collection 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 aligned in the vertical direction. Then, the motor is controlled to operate in reverse, so that the valve plug will block the drain 204 of the inner tub 200 again. By detecting whether the water level in the water collection structure drops over time, it is judged whether there is a drainage failure.
  • a water level sensor is installed in the cabinet of the washing machine. If the water level detected by the water level sensor drops, it means the washing machine drains normally, and the washing machine drains normally; if the water level does not drop, it means the drain valve or pump is malfunctioning or the user forgot to put down the drain pipe during washing. , There is an abnormal drainage. At this time, the washing machine keeps the drain port of the inner tub closed and will not drain, and sends an alarm to remind the user that there is an abnormal drainage, which is convenient for the user to deal with in time.
  • the main drainage process is executed.
  • the first preset water level 901 is set. If the water level in the water collection structure reaches the first preset water level 901, the control stops the drainage and detects Whether there is any abnormal drainage.
  • the pre-drainage process detects whether there is a drainage abnormality, the drainage pipe is hung up or blocked after the main drainage process cannot be drained.
  • the first preset water level 901 is also pre-set during the main drainage process. This water level can be used as an alarm water level.
  • the washing machine controls to stop draining, and at the same time detects whether there is a drainage abnormality such as the drain pipe is hung or blocked, so as to avoid excessive water in the water collection structure. If the maximum height of the water collection structure is exceeded, the overflow problem occurs, which ensures the safe operation of the washing machine.
  • the washing machine detects in real time whether the water level reaches the first preset water level 901 during the main draining process, and if the water level in the water collection structure does not reach the first preset water level 901, the water continues to drain, and if it reaches the first preset water level 901 , The control stops the drainage and detects whether there is a drainage abnormality, if there is a drainage abnormality, a prompt is issued, if it does not exist, the drainage is restarted.
  • the washing machine is provided with a water level monitoring device, which detects the water level in the water collection structure in real time during the main drainage process of the washing machine, and transmits the detected water level information to the control device.
  • a water level monitoring device which detects the water level in the water collection structure in real time during the main drainage process of the washing machine, and transmits the detected water level information to the control device.
  • the washing machine judges that there is no risk of water overflow and continues to drain.
  • the first preset water level 901 is reached, if there is an abnormal drainage, it is very easy to occur A large amount of water accumulates in the water collection structure, which is prone to overflow problems.
  • controlling to stop the drainage and detecting whether there is abnormal drainage can timely judge the drainage situation and avoid the occurrence of overflow.
  • the washing machine will issue a reminder to remind the user to check the drainage pipe to avoid wasting the user's time and avoid accidents. If no abnormal drainage is detected, the drainage will restart to ensure smooth drainage.
  • the method for detecting whether there is abnormal drainage in the main drainage process includes: detecting whether the water level in the water collection structure drops or whether the change value of the water level drop is greater than a preset value within a period of time.
  • Option 1 During the main drainage process of the washing machine, if the water level in the water collection structure drops within a period of time, the washing machine judges that the drainage is normal and starts to drain again; if the water level does not drop, it is judged that there is an abnormal drainage, and the washing machine keeps the drain port of the inner tub closed and sends out prompt;
  • the washing machine sets the preset value M for the change of the water level drop. If the change value of the water level drop in the water collection structure is greater than M, it is judged that the drainage is normal; if the change value of the water level drop in the water collection structure is less than or equal to M, it is judged The drainage is abnormal.
  • the water level drop change value in the water collection structure is greater than or equal to M, indicating that the drainage is normal, there is no clogging, and the drainage is unblocked. In this case, if the water in the inner bucket continues to be discharged, there will be no overflow. If the water level does not drop, or the degree of water level drop does not reach the preset value, it means that the drainage channel is at least partially blocked.
  • the washing machine keeps the drain port of the inner tub closed and stores the washing water in the inner tub to avoid overflow.
  • variable preset value M can be set according to the specifications of the washing machine, water collection structure, drain valve, etc., to ensure the accuracy of the detected drain.
  • the value of M can be set to be greater than or equal to 0.
  • the stated period of time is a preset period of time. This period of time can be the time required for the maximum volume of water contained in the water collection structure to be completely discharged under normal drainage conditions, or it can be a certain period of time when the drain of the inner bucket is opened. The time required for the amount of water entering the water collection structure to be completely discharged.
  • the drain port of the inner tub is provided with a plugging device that can open/close the drain port
  • the drain pipe of the washing machine is connected to the water collection structure
  • the drain pipe is provided with a drain valve and/or a drain pump
  • the washing machine judges that the drainage is normal, and again controls the blocking device to open the drain port of the inner tub, keep the drain valve and/or drain pump in an open state, and continue to drain;
  • the washing machine judges that the drain is abnormal, controls the blocking device to close the drain port of the inner tub, and sends out an abnormal drain prompt.
  • a second preset water level 902 is also set during the main drainage process, and the height of the second preset water level 902 is greater than the height of the first preset water level 901.
  • the second preset water level 902 can be used as the overflow water level, and the overflow water level can generally be set preferably 10-20 mm lower than the upper end surface of the water collection structure.
  • the water level is a high water level. When the water level reaches the overflow water level, it is very prone to overflow. Therefore, it is necessary to control the water level in the water collection structure to be lower than the overflow water level.
  • the washing machine starts to control the drainage volume during the process from stopping water drainage to completely stopping the main water drainage so that the water level in the water collection structure is still lower than the second preset water level 902.
  • the washing machine detects that the water level in the water collection structure reaches the first preset water level 901 (alarm water level), and immediately controls to stop draining.
  • the process operation process also takes a certain time, and there will still be some washing water in the process.
  • the water level of the water collection structure rises to a certain height.
  • the specific heights of the first preset water level 901 and the second preset water level 902 are set by calculation to ensure that even if the drain pipe is hung or blocked, the washing machine will start to stop draining to completely stop draining the water, so that the water collection structure The water level is still not higher than the overflow water level to prevent the occurrence of overflow.
  • the washing machine controls the drain outlet to close for a certain period of time until the water level is lower than the first preset water level 901 When, the control starts to drain again.
  • the water level in the water collection structure reaches the first preset water level 901, and the washing machine controls to stop draining, but when the drain is detected to be normal and there is no abnormal phenomenon, the second judgment is performed to ensure that the water level does not exceed the alarm water level before continuing to drain , Thereby further avoiding the occurrence of overflow, and ensuring the smooth and safe drainage of the washing machine.
  • this embodiment provides a washing machine having the drainage control method as described in Embodiment 1 or Embodiment 2.
  • the washing machine includes a cabinet 100, an inner tub 200 arranged in the cabinet 100, and a washing machine for driving the washing machine.
  • the driving device 300 for the rotation of the inner tub 200, the inner tub 200 is a water tub during washing, and a water collection structure is arranged on the outside of the inner tub 200.
  • the water discharged from the inner tub 200 is discharged through the water collection structure; it also includes a water level detection device , The water level detecting device is connected with the water collecting structure.
  • the water discharged from the inner tub 200 can be discharged through the water collecting structure during dehydration and drainage.
  • the inner tub 200 is a water tub, which realizes that there is no outer tub outside the inner tub 200.
  • the movable space of the inner tub 200 is increased and the possibility of collision with the tub is reduced.
  • the water collection structure can reduce the interference between the inner tub 200 and the box body.
  • the occupation of the space between 100 increases the movement space of the mouth of the inner barrel. Therefore, the volume of the inner barrel 200 can be increased by increasing the diameter of the inner barrel 200 to achieve effective capacity expansion.
  • the water level detection device is connected with the water collection structure, and can monitor the water level in the water collection structure at any time.
  • the washing machine can judge whether there is drainage abnormality through the change of the water level in the water collection structure, and can avoid water overflow from the water collection structure to the electrical appliances inside the washing machine Components or the ground, avoid causing the washing machine to malfunction and cause losses to the user.
  • the water collection structure includes a water collection chamber 400 having an upper opening, and the inner barrel 200 is in communication with the upper opening of the water collection chamber 400; the water level detection device includes an air chamber 802, and the lower part of the air chamber 802 is connected to the water collection chamber. The bottom of the 400 is connected.
  • the upper opening of the water collection cavity 400 is lower than the inner barrel opening of the inner barrel 200.
  • the height of the opening on the water collection cavity 400 can be set as required, and the height of the upper opening of the water collection cavity 400 can be half or one third of the inner tub 200, or other suitable heights.
  • the entire water collection cavity 400 is located below the bottom of the inner tub 200, and the upper opening of the water collection cavity 400 is lower than the bottom of the inner tub 200.
  • the water collection cavity 400 does not have a structure between the inner tub 200 and the box body 100, and there is no need to set a certain safety distance between the inner tub 200 and the water collection structure to prevent the inner tub 200 from colliding with the water collection structure to cause damage, and it is also unnecessary
  • a safety distance is set between the water collection structure and the box body 100. Therefore, only the safety distance between the inner tub 200 and the box body 100 can be designed, which can greatly increase the barrel diameter of the inner barrel 200 and better realize the expansion of the inner barrel 200.
  • the water level detection device is arranged in the box 100, and the lower part of the air chamber 802 is in communication with the water collection chamber 400.
  • the water enters the air chamber 802 at the same time.
  • the height of the water level in the water cavity 400 will remain the same.
  • the change of the water level in the air chamber 802 is also consistent with the change of the water level in the water collection structure.
  • the change of the water level in the air chamber 802 causes the pressure in the air chamber 802 to change. Therefore, the water level detection device can detect the change of the water level in the water collection structure through the pressure change in the air chamber 802, so as to determine whether the drainage is normal.
  • the side wall of the water collection cavity 400 and the outer wall of the bottom of the inner tub 200 are spaced a certain distance apart.
  • the washing tub that is, the inner tub and the water collecting
  • the sidewall collision of the cavity can extend the service life of the water collection cavity.
  • the water level detection device also includes a pressure guiding tube 804 and a water level sensor 801.
  • the water level sensor 801 is arranged in the box 100.
  • the air chamber 802 is provided with an air chamber nozzle 803.
  • the water level sensor 801 is connected to the air chamber 802 through the pressure guiding tube 804.
  • the upper air chamber nozzle 803 is connected.
  • the water level sensor 801 is installed inside the box 100, and can be installed on the side wall of the box 100, or on the control panel seat on the upper part of the box 100.
  • the pressure guiding tube 804 and the air chamber nozzle 803 of the air chamber 802 The water level sensor 801 can detect the pressure change 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.
  • the washing machine can make a judgment based on the water level signal.
  • the air chamber nozzle 803 of the air chamber 802 is set toward the box body 100, and the water level sensor 801 is installed on the upper part of the box body 100 or on the control panel seat of the washing machine; the pressure guiding tube 804 is arranged vertically, and the upper end is connected with the water level sensor 801 , The lower end is connected with the air chamber nozzle 803.
  • the water level sensor 801 is installed on the upper part of the box body 100 or on the control panel seat of the washing machine to avoid occupying the space between the inner tub 200 and the box body 100.
  • the pressure guiding tube 804 is arranged vertically to avoid bending and ensure the detection of the water level detection device. The accuracy of the water level reached.
  • the water collection cavity 400 is provided with a drain pipe 401 for draining the water in the water collection 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 during spin-drying and a dehydration discharge pipe 202 connected to the dehydration port 201.
  • the water outlet 203 of the dehydration discharge pipe 202 is connected to the water collection structure.
  • the water collection structure includes a mounting plate 500 and a water retaining rib 501 provided on the mounting plate 500.
  • the mounting plate 500 and the retaining plate 500 The water rib 501 encloses to form a water collection cavity 400, and the air chamber 802 is arranged on the mounting plate 500 and is located outside the water retaining rib 501.
  • the mounting plate 500 is a horizontal plate, and the water retaining ribs 501 are arranged on the mounting plate 500, and are fixed and sealed with the mounting plate 500 or integrally formed.
  • the mounting plate 500 and the water retaining rib 501 are enclosed to form a water collection cavity 400.
  • the mounting plate 500 forms the bottom wall of the water collection cavity 400, and the water retaining rib 501 forms the side wall of the water collection cavity 400.
  • the structure is simple and convenient. Processing and shaping.
  • the water collection cavity 400 is located in the middle of the mounting plate 500, so that the center of gravity of the water blocking device is more likely to coincide with the center, and offset is reduced.
  • the water retaining ribs 501 are ring-shaped, and the water retaining ribs 501 and the mounting plate 500 are enclosed to form an annular water collection cavity 400.
  • the air chamber 802 is arranged on the mounting plate 500 and is located outside the water retaining rib 501, which facilitates the communication between the bottom of the air chamber 802 and the bottom of the water collection chamber 400, thereby keeping the water level changes in the air chamber 802 and the water collection chamber 400 consistent.
  • the air chamber 802 can be fixedly arranged with the mounting plate 500 or the water retaining rib 501 or integrally formed, which is also convenient for installation or integral processing.
  • the air chamber 802 can be used as a separate piece and fixed on the mounting plate 500.
  • the air chamber 802 is connected to the water collection chamber 400 through a pipe; or, the air chamber 802 can also be arranged on the outer wall of the water retaining rib 501, and the water retaining rib 501 And/or the mounting plate 500 is integrally arranged, and a side wall or 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 collection chamber 400 relatively fixed, and ensure that the air chamber 802 and the water collection chamber 400 are relatively fixed. Always connected.
  • the mounting plate 500 outside the water retaining rib 501 is provided with a vertical arc-shaped retaining rib 805.
  • the upper end and both sides of the arc-shaped retaining rib 805 are respectively It is sealed or integrally formed with the outer wall of the water retaining rib 501, 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 jointly enclosed to form a cavity inside
  • the bottom of the air chamber 802 opposite to the air chamber 802 is provided with an opening at the bottom of the water retaining rib 501 to communicate the water collection chamber 400 with the air chamber 802, and an air chamber mouth 803 is provided on the arc-shaped retaining rib 805.
  • the air chamber 802 of this solution is set by the water retaining ribs 501, that is, a part of the water retaining ribs 501 is shared between the air chamber 802 and the water collection chamber 400.
  • the side walls of the air chamber 802 are surrounded by the arc-shaped retaining ribs 805, which are The rib 805 and the mounting plate 500 and/or the water-retaining rib 501 may be integrally formed or fixed and sealed.
  • the bottom of the water retaining rib 501 shared between the air chamber 802 and the water collection chamber 400 is provided with an opening, and the air chamber 802 communicates with the water collection chamber 400 through the opening.
  • the water in the water collection cavity 400 can enter the water collection cavity 400 through this opening, so that the water levels of the two are always consistent.
  • This arrangement integrally forms the air chamber 802 when processing the water collection structure, reduces the installation workload, and keeps the air chamber 802 and the water collection cavity 400 always connected.
  • the water-retaining ribs 501 are arranged obliquely, and the water-retaining ribs 501 gradually contract from top to bottom in the direction of the central axis of the water collection cavity 400, and the air chamber 802 is located at the side of the inclined water-retaining rib 501 Below, and located in the horizontal projection of the water collection cavity 400.
  • the water collection capacity can be maximized and it is more convenient to use; the water retaining ribs 501 gradually contract from top to bottom toward the central axis of the water collection cavity 400, so that the upper opening has a larger diameter. Larger and easier to collect.
  • the air chamber 802 is located below the inclined water retaining ribs 501, and is located in the horizontal projection of the water collection cavity 400, so that it will not protrude outward from the outermost periphery of the water collection cavity 400, which can avoid collision with the box body 100. Avoid damage to the air chamber 802.
  • the bottom outer wall of the inner tub 200 is a curved surface, and the water retaining ribs 501 are 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 collection cavity 400 in the horizontal direction.
  • the distance between the water collection cavity 400 and the box body 100 is increased, and the collision between the water collection cavity 400 and the box body 100 can be prevented, and the collection can be reduced.
  • the water chamber 400 is damaged; at the same time, the water collection chamber 400 has a small volume, which makes it easier to install 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 collection cavity 400 in the horizontal direction, and more water can be collected.
  • a drain pipe 401 is provided on the mounting plate 500.
  • One end of the drain pipe 401 is connected to the water collection chamber 400, and the other end is connected to the outside of the washing machine or connected to the general drain pipe 401 of the washing machine to drain water.
  • a dehydration port 201 and a dehydration discharge pipeline 202 connected to the dehydration port 201 are provided on the barrel wall of the inner tub 200, and the water outlet 203 of the dehydration discharge pipeline 202 is arranged above the upper opening of the water collection chamber 400.
  • Each dehydration outlet 201 corresponds to a dehydration discharge pipeline 202.
  • Multiple dehydration outlets 201 can also correspond to a dehydration discharge pipeline 202.
  • the washing machine When the washing machine performs spin drying During the procedure, the water thrown out due to the centrifugal effect of the washing tub enters the dehydration discharge pipe 202 through the dehydration outlet 201, and enters the water collection chamber 400 through the water outlet 203 of the dehydration discharge pipe 202, and is collected in the water collection chamber 400 , Drained through the drain 401.
  • the water outlet 203 of the dehydration discharge pipeline 202 is arranged above the upper opening of the water collection chamber 400.
  • the water enters the dehydration discharge pipe 202 through the dehydration port 201 and then enters the water collection chamber 400 through the water outlet 203; the water outlet 203 is set in the water collection enclosed by the water retaining rib 501501 Above the upper opening of the cavity 400, the water discharged from the water outlet 203 directly falls into the water collection cavity 400.
  • the structure is simpler, no additional components are needed, and the water collection effect is better.
  • the inner tub 200 further includes a drain port 204 for draining the water in the inner tub 200 into the water collection cavity 400 during drainage and dehydration, and a blocking device is provided between the drain port 204 and the water collection cavity 400, The blocking device opens the drain 204 when draining water and/or dehydrating, and blocks the drain 204 when washing;
  • the drain port 204 is provided above the upper opening of the water collection chamber 400, and the plugging device is provided at the lower part of the drain port 204.
  • the washing machine is a pulsator washing machine.
  • the blocking device 205 includes a valve plug 205-1 and an electromagnetic device 205-2 arranged under the valve plug 205-1.
  • the electromagnetic device 205-2 is electrically connected to the control device of the washing machine.
  • the valve plug 205 -1 Block the drain port 204 to prevent the water in the inner tub 200 from draining.
  • the solenoid device 205-2 controls the valve plug 205-1 to move downwards to open the drain port 204 to remove the water Drain into the water retaining structure.
  • the mounting plate 500 is provided with a positioning device, and the bottom wall of the inner tub 200 is provided with a matching part that matches the positioning device.
  • the matching part can be a positioning groove.
  • the positioning device is separated from the matching part when the positioning device is drained and/or dried.
  • the inner tub 200 rotates with the output shaft 303.
  • the positioning device cooperates with the matching part to clamp the inner tub 200 on the mounting plate 500.
  • the valve plug 205-1 is exactly opposite to the drain port 204, sealing the drain port 204 The blockage 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 arranged between the inner tub 200 and the driving device 300, and the lower part of the mounting plate 500 is fixedly connected to the outer shell of the driving device 300.
  • the mounting plate 500 is installed between the inner tub 200 and the driving device 300, on the one hand, the water in the inner tub 200 can fall by its own weight and automatically flow into the water retaining structure.
  • the mounting plate 500 is installed on the upper part of the driving device 300 to remove water It is isolated from the driving device 300 to prevent damage to the driving device 300 caused by water.
  • the driving device 300 includes a motor 301, a deceleration clutch device 302 is arranged above the motor 301, and the lower part of the mounting plate 500 is fixedly connected with a deceleration clutch or a housing of the motor 301.
  • connection between the mounting plate 500 and the driving device 300 may also be as follows: the mounting plate 500 and the output shaft 303 of the driving device 300 are connected through a bearing.
  • the output shaft 303 of the deceleration clutch passes through the mounting plate 500 and is connected to the inner tub 200 to drive the rotation of the inner tub 200.
  • the mounting plate 500 and the output shaft 303 of the driving device 300 are connected through a bearing.
  • the washing machine provided in this embodiment further includes a suspension shock-absorbing member 600 and a mounting member 700 arranged at the lower part of the inner tub.
  • the driving device 300 is mounted on the mounting member 700, one end of the suspension shock-absorbing member 600 is connected to the box body 100, and the other end is connected to the mounting member 700.
  • the suspension shock-absorbing member 600 is mounted on the mounting member 700. Since the mounting member 700 is lower than the inner barrel, the longitudinal height of the mounting portion 701 is reduced, so that the suspension after installation The inclination angle ⁇ between the shock absorber 600 and the side wall of the box body is reduced, thereby reducing the occupied space of the suspension shock absorber 600.
  • the structure is suspended between the inner tub and the box body 100, it can It is possible to increase the diameter of the inner barrel without increasing the volume of the box body 100 to achieve the purpose of capacity expansion.
  • the mounting member 700 includes a mounting portion 701 for assembling the suspension shock absorber 600, and the mounting portion 701 is not higher than the bottom of the inner tub.
  • the installation part 701 is not higher than the bottom of the inner barrel, so that it does not occupy the space between the inner barrel and the box body 100, and can increase the diameter of the inner barrel to achieve expansion.
  • the suspension shock absorber includes a boom 601 and a shock absorbing unit 602.
  • the boom is connected to the shock absorbing unit.
  • the shock absorbing unit is assembled below the mounting part.
  • the boom passes through the mounting part and is suspended on the upper part of the box.
  • the upper end of the shock absorbing unit abuts in the mounting part.
  • the mounting portion 701 is located below the bottom of the inner barrel. After the suspension damping member 600 is assembled with the mounting portion 701, since the mounting portion 701 is set lower than the bottom of the inner barrel, the suspension damping member The angle of the inclination angle formed between 600 and the box 100 is reduced, that is, the suspension shock absorber 600 is more closely fitted to the inner wall of the box 100, and more space is reserved for the inner barrel. The diameter achieves the purpose of capacity expansion.
  • the projection of the mounting part 701 in the horizontal direction is located at the periphery of the projection of the inner tub in the horizontal direction.
  • the mounting part 701 Since the mounting part 701 is installed below the bottom of the inner tub, it does not occupy the space between the inner tub and the box body 100, and the mounting part 701 will not collide with the inner tub. Under this premise, the mounting portion 701 is extended to the inner tub in the horizontal direction Outside the barrel wall, the horizontal projection of the mounting portion 701 is located at the periphery of the horizontal projection of the inner barrel, which further reduces the installation space of the suspension shock absorber 600, thereby increasing the installation space of the inner barrel, and realizes the Expansion.
  • the output shaft 303 passes through the mounting member 700 and is connected to the inner tub for driving the inner tub to rotate, and the mounting member 700 and the output shaft 303 are connected through a bearing.
  • the mounting member 700 can also be fixedly connected with the outer casing of the driving device 300, so that the mounting member 700, the driving device 300 and the inner barrel are formed into a relatively independent whole; the mounting member 700 can also be fixedly connected with the outer casing of the driving device 300 and simultaneously with the output
  • the shaft 303 is connected by a bearing, and the mounting member 700, the driving device 300 and the inner barrel are formed into a relatively independent whole.
  • the mounting member 700 is connected to the output shaft 303 through a bearing and/or is fixedly connected to the housing of the driving device 300, so that the mounting member 700, the driving device 300 and the inner barrel become a relatively independent whole, and the shock-absorbing member reduces the cost of the mounting member 700
  • the vibration further reduces the vibration of the inner tub and the driving device 300, thereby achieving a good shock absorption effect.
  • the mounting member 700 is a centrally symmetrical structure, and there are multiple suspension damping members 600, and the multiple suspension damping members 600 are evenly distributed around the mounting member 700.
  • the mounting plate in the fourth embodiment is a part of the mounting part, and the mounting plate is the structure of the upper part of the mounting part.
  • the mounting plate 500 is set to be circular, which facilitates the installation of the driving device 300 on the one hand , On the other hand makes the structure more stable.

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Abstract

本发明公开了一种洗衣机排水控制方法及洗衣机，洗衣机的内桶为盛水桶，且外部设有收集内桶中排出的水的集水结构，洗衣机的排水过程中，若集水结构中的水位达到第一预设水位，则控制停止排水并检测是否存在排水异常。本发明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；同时能够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；同时能够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排水控制方法及洗衣机，洗衣机的内桶为盛水桶，且外部设有收集内桶中排出的水的集水结构，洗衣机的排水过程中设置第一预设水位，若集水结构中的水位达到第一预设水位，则控制停止排水并检测是否存在排水异常。
进一步的方案，洗衣机在排水过程中实时检测水位是否达到第一预设水位，若集水结构中的水位没有达到第一预设水位，则继续排水，若达到第一预设水位，则控制停止排水并检测是否存在排水异常，若存在排水异常则发出提示，若不存在，则重新开始排水。
进一步的方案，所述的排水过程中检测是否存在排水异常的方法包括：检测在一段时间内，集水结构中的水位是否下降或者水位下降的变化值是否大于预设值。
进一步的方案，洗衣机排水过程中，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，重新开始排水；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并发出提示；
或者，洗衣机设定水位下降的变化预设值M，若集水结构中水位下降的变化值大于M，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M，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；
若水位下降的变化值大于变化预设值M，则洗衣机判断排水正常，再次控制封堵装置打开内桶的排水口，保持排水阀和/或排水泵处于打开状态，继续排水；
若水位下降的变化值小于或等于变化预设值M，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，所述的排水过程中还设置第二预设水位，所述的第二预设水位的高度大于第一预设水位的高度；
优选的，当集水结构中的水位达到第一预设水位，洗衣机开始控制停止排水到完全停止排水过程中的排水量使集水结构中的水位仍低于第二预设水位。
进一步的方案，洗衣机控制停止排水并检测是否存在排水异常时，若判断排水正常，则再次检测集水结构中的水位，当水位低于第一预设水位时，控制再次开始排水；
优选的，判断排水正常后，当再次检测集水结构中的水位仍达到或者高于第一预设水位时，洗衣机控制排水口关闭一定的时间后，直至水位低于第一预设水位时，控制再次开始排 水。
进一步的方案，洗衣机执行排水过程之前，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，若无异常则进入排水过程，若存在排水异常，洗衣机保持内桶的排水口关闭，停止排水，并发出排水异常提示。
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。
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。
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，在排水过程中设置第一预设水位以及第二预设水位，能够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。
(3)本发明的控制方法中设置有预排水过程时，在预排水过程中可以检测判断排水管是否挂起或者堵塞，在主排水过程中当水位超过第一预设水位，存在溢水的风险时，也能够及时检测判断排水管是否挂起或者堵塞，因此可以保证整个洗衣机的排水过程的异常都能够及时被发现并发出提示，避免集水结构中水量过多，超出集水结构的最大高度而出现溢水问题，保证洗衣机的运行安全。
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是本发明的一种排水控制方法的流程示意图；
图2是本发明的洗衣机结构的一种示意图；
图3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 901、第一预设水位 902、第二预设水位。
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。
实施例一
本实施例提供一种洗衣机排水控制方法，洗衣机的内桶为盛水桶，且外部设有收集内桶中排出的水的集水结构，洗衣机的排水过程中设置第一预设水位901，若集水结构中的水位达到第一预设水位901901，则控制停止排水并检测是否存在排水异常。
在洗涤和漂洗时，内桶为盛水桶，实现了内桶外不设外桶，内桶的可活动空间增加，减少了撞桶的可能，同时，集水结构能够减少对内桶和箱体之间空间的占用，使内桶口的活动空间增加，因此可以通过增加内桶的直径的方式来增大其容积，实现有效扩容。通过设置集水结构，在脱水和排水时，内桶中排出的水可以经由集水结构排出。由于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。
本实施例的排水控制方法中，预先设置了第一预设水位901，该水位可以作为报警水位，当集水结构中的水位超过该水位时，则存在溢水的风险，因此当检测到水位达到第一预设水位901时，洗衣机控制停止排水，同时检测是否存在排水管被挂起或堵塞等排水异常，从而 避免集水结构中水量过多，超出集水结构的最大高度而出现溢水问题，保证洗衣机的运行安全。
进一步的方案，洗衣机在排水过程中实时检测水位是否达到第一预设水位901，若集水结构中的水位没有达到第一预设水位901，则继续排水，若达到第一预设水位901，则控制停止排水并检测是否存在排水异常，若存在排水异常则发出提示，若不存在，则重新开始排水。
洗衣机中设置有水位监测装置，在洗衣机的排水过程中实时检测集水结构中的水位，并且将检测到的水位信息传递给控制装置。当检测的集水结构中的水位低于第一预设水位901时，洗衣机判断没有溢水的风险，继续进行排水，而当达到第一预设水位901时，若存在排水异常，则非常容易出现大量的水积存在集水结构中，容易出现溢水的问题，此时控制停止排水并检测是否存在排水异常能够及时判断排水情况，避免溢水情况的发生。当检测到存在排水异常时，洗衣机则发出提示，提醒用户检查排水管，避免浪费用户的时间和避免发生意外。若检测到没有排水异常，则重新开始排水，保证排水顺畅进行。
进一步的方案，所述的排水过程中检测是否存在排水异常的方法包括：检测在一段时间内，集水结构中的水位是否下降或者水位下降的变化值是否大于预设值。
具体方案包括但不限于以下两种：
方案1，洗衣机排水过程中，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，重新开始排水；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并发出提示；
方案2，洗衣机设定水位下降的变化预设值M，若集水结构中水位下降的变化值大于M，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M，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M，则说明排水正常，不存在堵塞，排水畅通，此种情况下，再继续排出内桶中的水，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M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。M的值可以设定为大于或等于0，当M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；
若水位下降的变化值大于变化预设值M，则洗衣机判断排水正常，再次控制封堵装置打开内桶的排水口，保持排水阀和/或排水泵处于打开状态，继续排水；
若水位下降的变化值小于或等于变化预设值M，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，所述的排水过程中还设置第二预设水位902，所述的第二预设水位902的高度大于第一预设水位901的高度。
本方案中，第二预设水位902可以作为溢水水位，溢水水位设置一般可优选低于集水结构的上端面10-20mm。该水位为高水位，当水位达到溢水水位时，则非常容易出现溢水情况，因此需要控制集水结构中的水位都低于该溢水水位。
优选的，当集水结构中的水位达到第一预设水位901，洗衣机开始控制停止排水到完全停止排水过程中的排水量使集水结构中的水位仍低于第二预设水位902。
该方案中，洗衣机检测到集水结构中的水位达到第一预设水位901(报警水位)，立即控制停止排水，但该过程操作过程也需要一定的时间，该过程中仍然会有部分洗涤水进入的集水结构中，使集水结构的水位上升一定的高度。本方案通过计算，设置第一预设水位901和第二预设水位902的具体高度，保证即使排水管被挂起或堵塞，洗衣机从开始停止排水到完全停止排水的排水量，使集水结构中的水位仍不高于溢水水位，防止溢水情况的发生。
进一步的方案，洗衣机控制停止排水并检测是否存在排水异常时，若判断排水正常，则再次检测集水结构中的水位，当水位低于第一预设水位901时，控制再次开始排水；
优选的，判断排水正常后，当再次检测集水结构中的水位仍达到或者高于第一预设水位901时，洗衣机控制排水口关闭一定的时间后，直至水位低于第一预设水位901时，控制再次开始排水。
本方案中，集水结构中的水位达到第一预设水位901，洗衣机控制停止排水，但检测到排水正常，并没有异常现象时，通过二次判断，保证水位不超出报警水位后再继续排水，从而进一步避免溢水情况的发生。
实施例二
如图1和图2所示，本实施例为实施例一的进一步的限定，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依次执行的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，若无异常则进入主排水过程，若存在排水异常，洗衣机保持内桶的排水口关闭，并发出排水异常提示。
本实施例中所述的主排水过程相当于实施例一中所述的排水过程，与实施例一不同的是，本实施例在洗衣机排水时，在排水过程之前增加预排水过程。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，主排水过程相当于实施例一中的排水过程。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。
进一步的方案，预排水过程检测排水正常后，执行主排水过程，主排水过程中设置第一预设水位901，若集水结构中的水位达到第一预设水位901，则控制停止排水并检测是否存在排水异常。
尽管预排水过程中检测了是否存在排水异常，但不能排水进入主排水过程后，排水管被挂起或者堵塞的情况。本方案中，不仅在预排水过程中检测判断是否存在排水异常，在主排水过程中还预先设置了第一预设水位901，该水位可以作为报警水位，当集水结构中的水位超过该水位时，则存在溢水的风险，因此当检测到水位达到第一预设水位901时，洗衣机控制停止排水，同时检测是否存在排水管被挂起或堵塞等排水异常，从而避免集水结构中水量过多，超出集水结构的最大高度而出现溢水问题，保证洗衣机的运行安全。
进一步的方案，洗衣机在主排水过程中实时检测水位是否达到第一预设水位901，若集水结构中的水位没有达到第一预设水位901，则继续排水，若达到第一预设水位901，则控制停止排水并检测是否存在排水异常，若存在排水异常则发出提示，若不存在，则重新开始排水。
洗衣机中设置有水位监测装置，在洗衣机的主排水过程中实时检测集水结构中的水位，并且将检测到的水位信息传递给控制装置。当检测的集水结构中的水位低于第一预设水位901时，洗衣机判断没有溢水的风险，继续进行排水，而当达到第一预设水位901时，若存在排水异常，则非常容易出现大量的水积存在集水结构中，容易出现溢水的问题，此时控制停止排水并检测是否存在排水异常能够及时判断排水情况，避免溢水情况的发生。当检测到存在排水异常时，洗衣机则发出提示，提醒用户检查排水管，避免浪费用户的时间和避免发生意外。若检测到没有排水异常，则重新开始排水，保证排水顺畅进行。
进一步的方案，所述的主排水过程中检测是否存在排水异常的方法包括：检测在一段时间内，集水结构中的水位是否下降或者水位下降的变化值是否大于预设值。
具体方案包括但不限于以下两种：
方案1，洗衣机主排水过程中，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，重新开始排水；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并发出提示；
方案2，洗衣机设定水位下降的变化预设值M，若集水结构中水位下降的变化值大于M，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M，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M，则说明排水正常，不存在堵塞，排水畅通，此种情况下，再继续排出内桶中的水，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M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。M的值可以设定为大于或等于0，当M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；
若水位下降的变化值大于变化预设值M，则洗衣机判断排水正常，再次控制封堵装置打开内桶的排水口，保持排水阀和/或排水泵处于打开状态，继续排水；
若水位下降的变化值小于或等于变化预设值M，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，所述的主排水过程中还设置第二预设水位902，所述的第二预设水位902的高度大于第一预设水位901的高度。
本方案中，第二预设水位902可以作为溢水水位，溢水水位设置一般可优选低于集水结构的上端面10-20mm。该水位为高水位，当水位达到溢水水位时，则非常容易出现溢水情况，因此需要控制集水结构中的水位都低于该溢水水位。
优选的，当集水结构中的水位达到第一预设水位901，洗衣机开始控制停止排水到完全停止主排水过程中的排水量使集水结构中的水位仍低于第二预设水位902。
该方案中，洗衣机检测到集水结构中的水位达到第一预设水位901(报警水位)，立即控制停止排水，但该过程操作过程也需要一定的时间，该过程中仍然会有部分洗涤水进入的集水结构中，使集水结构的水位上升一定的高度。本方案通过计算，设置第一预设水位901和第二预设水位902的具体高度，保证即使排水管被挂起或堵塞，洗衣机从开始停止排水到完全停止排水的排水量，使集水结构中的水位仍不高于溢水水位，防止溢水情况的发生。
进一步的方案，洗衣机控制停止排水并检测是否存在排水异常时，若判断排水正常，则再次检测集水结构中的水位，当水位低于第一预设水位901时，控制再次开始排水；
优选的，判断排水正常后，当再次检测集水结构中的水位仍达到或者高于第一预设水位901时，洗衣机控制排水口关闭一定的时间后，直至水位低于第一预设水位901时，控制再 次开始排水。
本方案中，集水结构中的水位达到第一预设水位901，洗衣机控制停止排水，但检测到排水正常，并没有异常现象时，通过二次判断，保证水位不超出报警水位后再继续排水，从而进一步避免溢水情况的发生，保证洗衣机排水的顺畅安全进行。
实施例三
如图3所示，本实施例提供一种具有如实施例一或实施例二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。
实施例四
如图3所示，本实施例为实施例三的进一步的限定，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。
实施例五
如图3所示，本实施例为实施例三或实施例四的进一步的限定，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。
实施例四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. 一种洗衣机排水控制方法，其特征在于，洗衣机的内桶为盛水桶，且外部设有收集内桶中排出的水的集水结构，洗衣机的排水过程中，若集水结构中的水位达到第一预设水位，则控制停止排水并检测是否存在排水异常。
  2. 根据权利要求1所述的一种洗衣机排水控制方法，其特征在于，洗衣机在排水过程中实时检测水位是否达到第一预设水位，若集水结构中的水位没有达到第一预设水位，则继续排水，若达到第一预设水位，则控制停止排水并检测是否存在排水异常，若存在排水异常则发出提示，若不存在，则重新开始排水。
  3. 根据权利要求1或2所述的一种洗衣机排水控制方法，其特征在于，所述的检测是否存在排水异常的方法包括：检测在一段时间内，集水结构中的水位是否下降或者水位下降的变化值是否大于预设值。
  4. 根据权利要求3所述的一种洗衣机排水控制方法，其特征在于，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，重新开始排水；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并发出提示；
    或者，洗衣机设定水位下降的变化预设值M，若集水结构中水位下降的变化值大于M，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M，则判断排水异常。
  5. 根据权利要求4所述的一种洗衣机排水控制方法，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；
    若水位下降的变化值大于变化预设值M，则洗衣机判断排水正常，再次控制封堵装置打开内桶的排水口，保持排水阀和/或排水泵处于打开状态，继续排水；
    若水位下降的变化值小于或等于变化预设值M，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。
  6. 根据权利要求1-5任意一项所述的一种洗衣机排水控制方法，其特征在于，所述的排水过程中还设置第二预设水位，所述的第二预设水位的高度大于第一预设水位的高度；
    优选的，当集水结构中的水位达到第一预设水位，洗衣机开始控制停止排水到完全停止排水过程中的排水量使集水结构中的水位仍低于第二预设水位。
  7. 根据权利要求1-6任意一项所述的一种洗衣机排水控制方法，其特征在于，洗衣机控制停止排水并检测是否存在排水异常时，若判断排水正常，则再次检测集水结构中的水位， 当水位低于第一预设水位时，控制再次开始排水；
    优选的，判断排水正常后，当再次检测集水结构中的水位仍达到或者高于第一预设水位时，洗衣机控制排水口关闭一定的时间，直至水位低于第一预设水位后，控制再次开始排水。
  8. 根据权利要求1-7任意一项所述的一种洗衣机排水控制方法，其特征在于，洗衣机执行排水过程之前，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，若无异常则进入排水过程，若存在排水异常，洗衣机保持内桶的排水口关闭，并发出排水异常提示。
  9. 根据权利要求8所述的一种洗衣机排水控制方法，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。
  10. 一种具有权利要求1-9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。
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