Washing equipment control method and device and washing equipment

Abstract

The embodiment of the invention provides a control method and device of washing equipment and the washing equipment. The control method of the washing equipment comprises the steps of determining to start drainage operation, controlling a drainage pump to operate and acquiring a water quality detection signal generated by a water quality sensor; judging whether drainage exists at a first height according to the water quality detection signal, wherein the first height is the height where the detection end of the water quality sensor is located; and controlling the drainage pump to continue to operate under the condition that the first height is judged to have drainage according to the water quality detection signal. When the water quality detection signal generated by the water quality sensor judges that water needs to be drained at the first height, the drainage pump is controlled to continuously run, it can be determined that the drainage pump is not in a water-free idling state at the moment, and noise generated during idling of the drainage pump can be avoided; and the abrasion of the impeller shaft of the draining pump caused by uneven stress of each blade of the impeller and the like is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of household appliances, and particularly to a control method, device and washing equipment for a washing device. Background Art

[0002] Washing equipment such as drum washing machines and dishwashers use a drainage pump to achieve upward drainage. In addition, a water level sensor is installed in the washing equipment, and the operation of the drainage pump is controlled according to the water level signal generated by the water level sensor.

[0003] Since the water level sensor also has the function of controlling the washing water level, its installation height is significantly higher than that of the drainage pump. Thus, during the drainage process, even if the water level sensor can no longer output the water level height signal, there is still a large amount of water to be drained in the washing equipment. To avoid the residue of the water to be drained in the pipeline, in the existing washing equipment, after the water level sensor no longer outputs the water level height signal, the drainage pump is still controlled to continue running for a period of time and then the drainage pump is controlled to run for a period of time according to the set on-off rhythm. However, the foregoing control strategy may cause the drainage water pump to run idly for a long time. Summary of the Invention

[0004] To solve the above technical problems, embodiments of the present disclosure provide a control method, device and washing equipment for a washing device.

[0005] In a first aspect, embodiments of the present disclosure provide a control method for a washing device, including:

[0006] Determine to start a drainage operation, control the drainage pump to run, and obtain a water quality detection signal generated by a water quality sensor;

[0007] Judge whether there is water to be drained at a first height according to the water quality detection signal, where the first height is the height where the detection end of the water quality sensor is located;

[0008] When it is determined according to the water quality detection signal that there is water to be drained at the first height, control the drainage pump to continue running.

[0009] Optionally, the judging whether there is water to be drained at the first height according to the water quality detection signal includes:

[0010] When the water quality detection signal is outside a set signal range, it is determined that there is water to be drained at the first height, and the set signal range is the signal range when the detection end of the water quality sensor is exposed to air.

[0011] Optionally, while controlling the drainage pump to continue running, the method further includes:

[0012] Continue to obtain the water quality detection signal generated by the water quality sensor;

[0013] When it is determined according to the continuously obtained water quality detection signal that there is no water to be drained at the first height, control the drainage pump to continue running for a first preset duration;

[0014] Wherein, the first preset duration is determined according to the volume of the drainage pipeline between the water quality sensor and the drainage pump and the drainage volume per unit time of the drainage pump.

[0015] Optionally, the drainage operation is the drainage operation during the dehydration process;

[0016] After controlling the drainage pump to continue running, the method further includes:

[0017] Continuously obtain the water quality detection signal generated by the water quality sensor;

[0018] When it is determined according to the continuously obtained water quality detection signal that there is no water to be drained at the first height, control the drainage pump to stop running;

[0019] Wait for a second preset duration and then continue to obtain the water quality detection signal generated by the water quality sensor;

[0020] When it is determined according to the water quality detection signal obtained again that there is water to be drained at the first height, control the drainage pump to continue running.

[0021] Optionally, the method further includes:

[0022] Judge whether the dehydration operation duration reaches the set operation duration;

[0023] When it is determined according to the water quality detection signal obtained again that there is water to be drained at the first height, controlling the drainage pump to continue running includes:

[0024] When the dehydration operation duration reaches the set operation duration and it is determined according to the water quality detection signal obtained again that there is water to be drained at the first height, control the drainage pump to run until it is determined according to the water quality detection signal that there is no drainage at the first height, and continue to control the drainage pump to run for a first preset duration;

[0025] Wherein, the first preset duration is determined according to the volume of the drainage pipeline between the water quality sensor and the drainage pump and the operating power of the drainage pump.

[0026] Optionally, after controlling the drainage pump to continue running for a first preset duration, the method further includes:

[0027] Stop supplying power to the water quality sensor and the drainage pump.

[0028] Optionally, wait for a second preset duration and then obtain the water quality detection signal generated by the water quality sensor again;

[0029] Determine whether the dehydration operation duration reaches the set operation duration;

[0030] After waiting for the second preset duration, obtain the water quality detection signal generated by the water quality sensor again, including: when waiting for the second preset duration and the dehydration operation duration does not reach the set operation duration, obtain the water quality detection signal generated by the water quality sensor again.

[0031] Optionally, before obtaining the water quality detection signal generated by the water quality sensor, the method further includes:

[0032] Obtain the water level detection signal generated by the water level sensor;

[0033] The obtaining of the water quality detection signal generated by the water quality sensor includes: when determining that the water level height is lower than the second height according to the water level detection signal, obtain the water quality detection signal generated by the water quality sensor;

[0034] Wherein, the second height is the minimum detection height of the water level sensor, and the second height is greater than the first height.

[0035] In a second aspect, an embodiment of the present disclosure provides a control device for a washing device, including:

[0036] A control unit, configured to determine to start a drainage operation and control the drainage pump to operate;

[0037] A signal acquisition unit, configured to acquire the water quality detection signal generated by the water quality sensor;

[0038] A judgment unit, configured to judge whether there is water to be drained at the first height according to the water quality detection signal, where the first height is the height where the detection end of the water quality sensor is located;

[0039] The control unit is further configured to control the drainage pump to continue to operate when it is determined according to the water quality detection signal that there is water to be drained at the first height.

[0040] In a third aspect, an embodiment of the present disclosure provides a washing device, including a controller, a water quality sensor, and a drainage pump;

[0041] The controller is configured to control the operating state of the drainage pump according to the water quality detection signal generated by the water quality sensor according to the control method of the washing device as described above.

[0042] The technical solution provided by the embodiment of the present disclosure has the following advantages compared with the prior art:

[0043] Because the water quality sensor is used to detect the water quality of the washing water, it is installed in the drainage pipeline at a position slightly higher than the drainage pump and relatively close to the drainage pump, rather than being installed in the washing tub of the washing equipment and far away from the drainage pump. By adopting the solution provided by the present disclosure example, when determining that the first height needs to drain water by using the water quality detection signal generated by the water quality sensor, controlling the drainage pump to continue running can ensure that the drainage pump is not in a dry running state at this time, thus avoiding the noise generated during the dry running of the drainage pump and the wear of the drainage pump caused by uneven forces on the impeller shaft of the impeller due to reasons such as uneven forces on each blade of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure.

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

[0046] Figure 1 is a schematic structural diagram of a washing equipment;

[0047] Figure 2 is a flowchart of the control method of the washing equipment provided by the embodiment of the present disclosure;

[0048] Figure 3 is a flowchart of the control method of the washing equipment provided by some other embodiments of the present disclosure;

[0049] Figure 4 is a flowchart of the control method of the washing equipment provided by still some other embodiments of the present disclosure;

[0050] Figure 5 is a flowchart of the control method of the washing equipment provided by still some other embodiments of the present disclosure;

[0051] Figure 6 is a schematic diagram of the control device of the washing equipment provided by the embodiment of the present disclosure;

[0052] Figure 7 is a schematic structural diagram of the washing equipment provided by the embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0053] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0054] As used herein, the term "including" and its variants are open-ended, that is, "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of the processes executed by these devices, modules or units or their interdependent relationships.

[0055] It should be noted that the modification of "one" and "a plurality" mentioned in the present disclosure is illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0056] To solve the problems that the existing washing equipment controls the operation of the drain pump based on the water level signal generated by the water level sensor, which may cause the drain pump to run idly for a long time and generate a large amount of noise due to the idling of the water pump, the embodiments of the present disclosure provide a new control method for a washing equipment. The control method for the washing equipment provided by the embodiments of the present disclosure realizes the operation control of the drain pump based on the water quality detection signal generated by the water quality sensor, and reduces the idling operation time of the drain pump.

[0057] The washing equipment mentioned in the embodiments of the present disclosure is a device that cleans the items to be washed and discharges the washing water in the washing tub by means of upper drainage. In a specific implementation, the washing equipment can be a drum washing machine or a dishwasher. Of course, the washing equipment is not limited to the aforementioned drum washing machine or dishwasher.

[0058] Before analyzing the control method for the washing equipment provided by the embodiments of the present disclosure, first analyze the structure involved in the washing equipment provided by the embodiments of the present disclosure.

[0059] Figure 1 is a schematic structural diagram of a washing equipment. As Figure 1As shown in the figure, the washing tub 101 in the washing device 100 drains water outward through the drainage pipeline 102. The drainage pipeline 102 includes a water quality sensor 103 and a drainage pump 104, and the water quality sensor 103 and the drainage pump 104 are connected by a hose or corrugated pipe with a shorter length and a smaller cross-sectional area. The installation height of the water quality sensor 103 is slightly higher than the installation height of the drainage pump 104. Just because the installation height of the water quality sensor 103 is only slightly higher than the installation height of the drainage pump 104, and the length of the hose connecting the two is short and the cross-sectional area is small, there is less water stored between the water quality sensor 103 and the drainage pump 104, which improves the rationality of the running time of the drainage pump 104 and avoids the problem of the drainage pump 104 running idly for a long time. Specifically, how to avoid the drainage pump 104 running idly for a long time will be specifically analyzed in the following text.

[0060] As Figure 1 shown in the figure, the washing device 100 may further include a water level sensor 105. The water level sensor 105 is arranged in the washing tub 101 of the washing device 100 and is used to detect the water level height in the washing tub 101. Since the water level sensor 105 needs to be arranged in the washing tub 101 to detect the water level in the washing tub 101, the installation height of the water level sensor 105 is significantly higher than the installation heights of the water quality sensor 103 and the drainage pump 104.

[0061] A simple description of the water quality sensor 103 mentioned in the embodiments of the present disclosure will be given here. The water quality sensor 103 in the embodiments of the present disclosure is a sensor for detecting the water quality of washing water. When the water quality sensor 103 is immersed in the washing water, the water quality sensor 103 generates a water quality detection signal. In specific implementation, the water quality sensor 103 may be a water hardness sensor or a turbidity sensor. When the water quality sensor 103 is a water hardness sensor, the water quality detection signal generated by the water quality sensor 103 is a water hardness signal (or a conductivity signal). When the water quality sensor 103 is a turbidity sensor, the water quality detection signal generated by the water quality sensor 103 is a turbidity signal, which characterizes the turbidity of the washing water.

[0062] It should also be noted here that when the water quality sensor 103 in the washing device 100 in the embodiments of the present disclosure is used for water quality detection, it will not affect other functions of the water quality sensor 103. That is to say, the method provided by the embodiments of the present disclosure can be parallel to other methods for processing the signals generated by the water quality sensor 103.

[0063] Figure 2 is a flowchart of the control method of the washing device provided by the embodiments of the present disclosure. As Figure 2, the control method of the washing device provided by the embodiments of the present disclosure includes S110 - S130. The control method of the washing device provided by the embodiments of the present disclosure is executed by a controller in the washing device.

[0064] S110: Determine to start the drainage operation, control the drainage pump to operate, and obtain the water quality detection signal generated by the water quality sensor.

[0065] In the embodiments of the present disclosure, after starting the drainage operation, the controller controls the drainage valve to open and controls the drainage pump to operate, so as to drain the washing water in the washing tub in an upper drainage manner by using the drainage pump.

[0066] While controlling the drainage pump to operate, the controller can control the water quality sensor to work and detect the water quality of the washing water by using the water quality sensor. While detecting the water quality of the washing water, the water quality sensor generates a water quality detection signal.

[0067] In specific implementation, the time point when the controller controls the water quality sensor to be powered on and generates a water quality detection signal can be determined according to requirements.

[0068] In some embodiments, the controller can control the water quality sensor to be powered on when controlling the drainage pump to operate, so as to immediately obtain the water quality detection signal.

[0069] In some other embodiments, when a water level sensor is configured in the washing device, the controller can control the water quality sensor to be powered on and work to generate a water quality detection signal only when it is determined that the water level sensor cannot detect the water level of the washing water, or when the water level detected by the water level sensor is lower than the set height.

[0070] S120: Judge whether there is water to be drained at the first height according to the water quality detection signal; if so, execute S130.

[0071] The aforementioned first height is the height where the detection end of the water quality sensor is located. In practical applications, if there is water to be drained at the height where the water quality sensor is located (that is, the aforementioned washing water), the water quality detection signal generated by the water quality sensor will characterize the water quality state to be drained, and it is within a specific signal range.

[0072] After obtaining the water quality detection signal, the controller then determines whether there is water to be drained at the first height according to the water quality detection signal. Here, determining whether there is water to be drained at the first height according to the water quality detection signal does not directly use the signal value of the water quality detection signal to determine whether there is water to be drained at the first height, but determines whether there is water to be drained at the first height by judging whether the water quality detection signal is within the set signal range. The aforementioned set signal range is the signal range generated when the detection end of the water quality sensor is not immersed in water, and the set signal range is determined in advance. In specific implementation, the set signal range can be represented by the maximum output range or the minimum output range of the sensor, specifically depending on the data meaning of the sensor output signal.

[0073] Specifically, if the water quality detection signal is outside the set signal range, it is determined that there is water to be drained at the first height.

[0074] S130: Control the drain pump to continue running.

[0075] In the embodiment of the present disclosure, if it is determined based on the water quality detection signal that there is still water to be drained at the first height, it indicates that the washing water in the washing device has not been drained completely. Therefore, the drain pump will be controlled to continue running to achieve drainage.

[0076] As analyzed above, since the water quality sensor is used to detect the water quality of the washing water, it is installed in the drainage pipeline slightly higher than the drain pump and relatively close to the drain pump, rather than installed in the washing tub of the washing device and far from the drain pump. Therefore, when using the water quality detection signal generated by the water quality sensor to determine that there is water to be drained at the first height and controlling the drain pump to continue running, it can be determined that the drain pump is not in a state of idling without water at this time, which can avoid the noise generated when the drain pump idles and avoid the wear of the drain pump caused by uneven forces on each blade of the impeller shaft and other reasons.

[0077] Figure 3 It is a flowchart of the control method of the washing device provided by other embodiments of the present disclosure. As Figure 3 shown, in other embodiments, the control method of the washing device includes S210 - S250.

[0078] S210: Determine to start the drainage operation, control the drain pump to run, and obtain the water quality detection signal generated by the water quality sensor.

[0079] S220: Determine whether there is water to be drained at the first height according to the water quality detection signal; if so, execute S230.

[0080] S230: Control the drain pump to continue running.

[0081] The execution process of the aforementioned S210 - S230 is the same as that of S110 - S130 in the previous text and will not be repeated here. For details, please refer to the previous description.

[0082] S240: Continuously obtain the water quality detection signal generated by the water quality sensor, and determine whether there is water to be drained at the first height according to the continuously obtained water quality detection signal; if not, execute S250.

[0083] S250: Control the drainage pump to continue running for the first preset duration.

[0084] The process of continuously obtaining the water quality detection signal generated by the water quality sensor and determining whether there is water to be drained at the first height according to the water quality detection signal is the same as that in the previous embodiment, and will not be elaborated here.

[0085] If it is determined according to the continuously detected water quality detection signal that there is no water to be drained at the first height, it is determined that the washing water in the washing device is basically emptied, and there may only be a certain amount of residual water in the pipeline after the water quality sensor. At this time, by controlling the drainage pump to continue running for the first preset duration, the corresponding water to be drained can be emptied.

[0086] The aforementioned first preset duration is determined according to the volume of the drainage pipeline between the water quality sensor and the drainage pump and the drainage volume per unit time of the drainage pump. Based on the setting strategy of the aforementioned first preset duration, it can be known that when it is determined based on the water quality detection signal that there is no water to be drained at the first height, after controlling the drainage pump to continue running for the first preset duration, the remaining washing water can be drained.

[0087] In practical applications, when draining water from a washing device such as a dishwasher that does not need to achieve dehydration, the actual running duration of the drainage pump can be determined by using the aforementioned S240 - S250, so as to drain the washing water as much as possible while avoiding idling caused by controlling the drainage pump to run for a long time when the water level is lower than the first height. Of course, in the case of a washing device such as a drum washing machine that needs to achieve dehydration, if it is in the self - cleaning operation process, the actual running duration of the drainage pump can also be determined by using the aforementioned S140 - S150.

[0088] Figure 4 It is a flowchart of the control method of the washing device provided in some other embodiments of the present disclosure. As Figure 4 shown, in some other embodiments, the control method of the washing device includes S310 - S350.

[0089] S310: Determine to start the drainage operation, control the drainage pump to run and obtain the water quality detection signal generated by the water quality sensor.

[0090] S320: Determine whether there is water to be drained at the first height according to the water quality detection signal; if so, execute S330; if not, execute S340.

[0091] S330: Control the drainage pump to continue running, and execute S320.

[0092] The execution process of the foregoing S310 - S330 is the same as that of S110 - S130 in the previous text, which will not be repeated here. For details, please refer to the previous description.

[0093] S340: Control the drainage pump to stop running.

[0094] S350: Wait for a second preset duration, then continue to obtain the water quality detection signal generated by the water quality sensor again, and determine whether there is water to be drained at the first height according to the water quality detection signal obtained again. If so, execute S330; if not, continue to execute S350.

[0095] In the embodiment of the present disclosure, when it is determined based on the water quality detection signal that there is no water to be drained at the first height, the controller does not control the drainage pump to continue running for a first preset duration as in S250 in the previous text, but controls the drainage pump to stop running.

[0096] However, S340 in the embodiment of the present disclosure controls the drainage pump to stop running only to pause the operation of the drainage pump. After waiting for a second preset time, the water quality detection signal generated by the water quality sensor will be obtained again, and it will be determined whether there is water to be drained at the first height according to the water quality detection signal obtained again. If there is water to be drained at the first height at this time, execute S330 until there is no water to be drained at the first height. If there is no water to be drained at the first height according to the water quality detection signal obtained again after waiting for a second preset time, the judgment step will be continued after waiting for a second preset time.

[0097] In specific implementation, the control method of the washing equipment provided by the embodiment of the present disclosure can be applied to equipment such as a drum washing machine that needs to perform a dehydration operation. In specific implementation, the washing equipment that needs to perform a dehydration operation uses the centrifugal force generated by the rotation of the washing tub to throw out the water in the load. As the dehydration operation progresses, the centrifugal force causes the water separated from the load to gradually decrease, but there will still be water separated and flowing into the drainage pipeline and the bottom of the washing tub. In this case, since the drainage volume per unit time of the drainage pump is greater than the drainage volume per unit time of dehydration, the water to be drained generated by dehydration will cause the water level height to be the first height. At this time, if draining is performed according to S250 described above, there may be a problem of incomplete drainage; if the drainage pump is continuously controlled to drain, there may be a problem of the drainage pump idling.

[0098] To avoid the foregoing problems, in the embodiments of the present disclosure, after the drainage pump is controlled to pause, after a second preset duration, it is determined again whether there is water to be drained at the first height according to the water quality detection signal generated by the water quality sensor. If it is determined at this time that there is water to be drained at the first height, the drainage pump is controlled to continue running; if it is determined at this time that there is no water to be drained at the first height, the drainage pump is controlled to continue to stop rotating, and the judgment step is performed again after a second preset duration. In this way, through the intermittent operation of the drainage pump, the drainage generated by dehydration can be discharged and the drainage pump can be prevented from idling.

[0099] In practical applications, after the dehydration duration of the washing device reaches the later stage, the centrifugal force generated by the dehydration operation can no longer remove the water in the load, that is, the expected drainage after dehydration is very small, and it is no longer meaningful to execute the foregoing S350 loop at this time. For this reason, in some embodiments, S360 - S370 can be executed while executing the foregoing S350.

[0100] S360: Determine whether the dehydration operation duration reaches the set operation duration; if so and it is determined that there is water to be drained at the first height according to the water quality detection signal obtained again, execute S370.

[0101] S370: Control the drainage pump to run until it is determined that there is no water to be drained at the first height according to the water quality detection signal, and continue to control the drainage pump to run for a first preset duration.

[0102] The first preset duration is determined according to the volume of the drainage pipeline between the water quality sensor and the drainage pump and the operating power of the drainage pump.

[0103] By adopting the foregoing method, after the dehydration operation duration reaches the set duration, if it is detected that there is drainage at the first height, by controlling the drainage pump to run until there is no water to be drained at the first height, and continuing to control the drainage pump to run for a first preset duration, the washing water in the drainage pipeline can be basically completely discharged.

[0104] After executing the foregoing S370, subsequently, the power supply to the water quality sensor and the drainage pump can be stopped, and the two components will no longer operate.

[0105] In some embodiments of the present disclosure, while performing the foregoing S360, the foregoing S350: waiting for a second preset duration and then continuing to obtain the water quality detection signal generated by the water quality sensor may specifically be: when waiting for the second preset duration and the dehydration operation duration has not reached the set operation duration, obtaining the water quality detection signal generated by the water quality sensor again. That is to say, if the dehydration operation duration has not reached the set operation duration, the controller will wait for the second preset duration and then determine whether the first height needs to be drained according to the water quality detection signal generated by the water quality sensor. If the dehydration operation duration has reached the set operation duration, the foregoing operations of obtaining the water quality detection signal and judging the water level height will no longer be performed, that is, the drain pump will not be controlled to operate during this dehydration process.

[0106] Figure 5 is a flowchart of a control method for a washing device provided in still other embodiments of the present disclosure. As Figure 5 shown, in some other embodiments, the control method for the washing device includes S410 - S440.

[0107] S410: Determine to start the drainage operation, control the drain pump to operate, and obtain the water level detection signal generated by the water level sensor.

[0108] S420: When it is determined according to the water level detection signal that the water level height is lower than the second height, obtain the water quality detection signal generated by the water quality sensor.

[0109] S430: Judge whether the first height needs to be drained according to the water quality detection signal; if so, execute S440.

[0110] S440: Control the drain pump to continue operating.

[0111] The foregoing second height is the minimum detection height of the water level sensor, and the second height is greater than the first height.

[0112] In the implementation of the present disclosure, when starting the drainage operation of the washing device, the water quality detection signal generated by the water quality sensor is not directly obtained. Instead, the water level detection signal generated by the water level sensor is first obtained, and based on the water level detection signal, it is judged whether the water level height is lower than the second height. If the water level height is lower than the second height, it is determined that the water level height has been lower than the detectable height of the water level sensor. At this time, it is necessary to determine the real-time water level height according to the water quality detection signal generated by the water quality sensor, and then control whether the drain pump continues to operate. In a specific implementation, after controlling the drain pump to continue operating when S440 is executed and the first height needs to be drained, other operation steps in the foregoing text may also be executed to more accurately control the operation of the drain pump and avoid the drain pump from idling for a long time.

[0113] In addition to providing the foregoing control method for the washing device, the embodiments of the present disclosure also provide a control device for the washing device.Figure 6 is a schematic diagram of a control device 600 of a washing device provided by an embodiment of the present disclosure. As Figure 5 shown, the control device 600 of the washing device provided by the embodiment of the present disclosure includes a control unit 601, a signal acquisition unit 602, and a judgment unit 603.

[0114] The control unit 601 is used to determine to start a drainage operation and control the drainage pump to operate; the signal acquisition unit 602 is used to acquire a water quality detection signal generated by a water quality sensor; the judgment unit 603 is used to judge whether there is water to be drained at a first height according to the water quality detection signal, and the first height is the height where the detection end of the water quality sensor is located; the control unit 601 is further used to control the drainage pump to continue to operate when it is determined according to the water quality detection signal that there is water to be drained at the first height.

[0115] In some embodiments, when the water quality detection signal is outside the set signal range, the judgment unit 603 determines that there is water to be drained at the first height, and the set signal range is the signal range when the detection end of the water quality sensor is exposed to air.

[0116] In some embodiments, after controlling the drainage pump to continue to operate, the signal acquisition unit 602 continues to acquire the water quality detection signal generated by the water quality sensor; when the judgment unit 603 determines that there is no water to be drained at the first height according to the continuously acquired water quality detection signal, the control unit 601 controls the drainage pump to continue to operate for a first preset duration; wherein, the first preset duration is determined according to the volume of the drainage pipeline between the water quality sensor and the drainage pump and the drainage volume per unit time of the drainage pump.

[0117] In some embodiments, the drainage operation is the drainage operation during the dehydration process;

[0118] After controlling the drainage pump to continue to operate, the signal acquisition unit 602 continues to acquire the water quality detection signal generated by the water quality sensor. When the judgment unit 603 determines that there is no water to be drained at the first height according to the continuously acquired water quality detection signal, the control unit 601 controls the drainage pump to stop operating; the signal acquisition unit 602 continues to acquire the water quality detection signal generated by the water quality sensor again after waiting for a second preset duration; when it is determined according to the continuously acquired water quality detection signal again that there is water to be drained at the first height, the control unit 601 controls the drainage pump to continue to operate.

[0119] In some embodiments, the determination unit 603 is further configured to determine whether the dehydration operation duration reaches a set operation duration. When the dehydration operation duration reaches the set operation duration and it is determined according to the water quality detection signal obtained again that there is water to be drained at the first height, the control unit 601 controls the drain pump to operate until it is determined according to the water quality detection signal that there is no water drainage at the first height, and continues to control the drain pump to operate for a first preset duration; wherein, the first preset duration is determined according to the volume of the drainage pipeline between the water quality sensor and the drain pump and the operating power of the drain pump.

[0120] In some embodiments, after controlling the drain pump to continue operating for the first preset duration, the control unit 601 controls to stop supplying power to the water quality sensor and the drain pump.

[0121] In some embodiments, after waiting for a second preset duration, the water quality detection signal generated by the water quality sensor is obtained again. The determination unit 603 determines whether the dehydration operation duration reaches the set operation duration. The signal acquisition unit 602 obtains the water quality detection signal generated by the water quality sensor again when waiting for the second preset duration and the dehydration operation duration does not reach the set operation duration.

[0122] In some embodiments, the signal acquisition unit 602 obtains the water level detection signal generated by the water level sensor, and obtains the water quality detection signal generated by the water quality sensor when it is determined according to the water level detection signal that the water level height is lower than a second height; wherein, the second height is the minimum detection height of the water level sensor, and the second height is greater than the first height.

[0123] In addition to providing the foregoing control method and control device for a washing device, embodiments of the present disclosure also provide a washing device. Figure 7 It is a schematic structural diagram of the washing device provided by the embodiments of the present disclosure. As Figure 7 shown, the washing device includes a controller 701, a water quality sensor 702, and a drain pump 703.

[0124] The controller 701 is configured to control the operating state of the drain pump 703 according to the water quality detection signal generated by the water quality sensor 702 according to the control method of the washing device as described above.

[0125] In specific implementation, the controller 701 may be a central processing unit (CPU) or other forms of processing units with data processing capabilities and / or instruction execution capabilities, and may control other components in the washing device to perform desired functions.

[0126] Embodiments of the present disclosure also provide a storage medium storing a program or instructions, which cause a computer to execute any control method of a washing device provided by the embodiments of the present disclosure. When executed by a computer controller, the computer-executable instructions can also be used to execute the control method of any of the above-mentioned washing devices provided by the embodiments of the present disclosure to achieve corresponding beneficial effects.

[0127] From the above description of the embodiments, those skilled in the art can clearly understand that the embodiments of the present disclosure can be implemented by means of software and necessary general-purpose hardware. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the embodiments of the present disclosure, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as a floppy disk, a read-only memory (ROM), a random access memory (RAM), a flash memory (FLASH), a hard disk, or an optical disc of a computer, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods of the various embodiments of the present disclosure.

[0128] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for controlling a washing device, characterized in that: include: Determine to start the drainage operation, control the operation of the drainage pump and obtain the water quality detection signal generated by the water quality sensor; Determine whether there is water to be drained at a first height according to the water quality detection signal, the first height being the height at which the detection end of the water quality sensor is located; When it is determined according to the water quality detection signal that the first height needs to be drained, the drainage pump is controlled to continue to operate.

2. The control method according to claim 1, characterized in that: The step of judging whether there is water to be drained at the first height according to the water quality detection signal comprises: When the water quality detection signal is outside a set signal range, it is determined that the first height needs to be drained, and the set signal range is a signal range when the detection end of the water quality sensor is exposed to the air.

3. The control method according to claim 1, characterized in that: While controlling the drainage pump to continue to operate, the method further includes: Continuing to obtain the water quality detection signal generated by the water quality sensor; When it is determined according to the continuously acquired water quality detection signal that there is no water to be drained at the first height, controlling the drainage pump to continue to operate for a first preset time period; The first preset time duration is determined according to the volume of the drainage pipeline between the water quality sensor and the drainage pump and the drainage volume per unit time of the drainage pump.

4. The control method according to claim 1, characterized in that: The drainage operation is a drainage operation in the dehydration process; After controlling the drainage pump to continue to operate, the method further includes: Continue to obtain the water quality detection signal generated by the water quality sensor; When it is determined according to the water quality detection signal that is continuously obtained that there is no water to be drained at the first height, controlling the drainage pump to stop running; After waiting for a second preset time, continuing to obtain the water quality detection signal generated by the water quality sensor; When it is determined that the first height needs to be drained according to the water quality detection signal that is continuously obtained, the drainage pump is controlled to continue to operate.

5. The control method according to claim 4, characterized in that: The method further comprises: Determine whether the dehydration operation time reaches the set operation time; When it is determined that the first height needs to be drained according to the water quality detection signal obtained again, controlling the drainage pump to continue to operate, including: When the dehydration operation time reaches the set operation time and it is determined that the first height needs to be drained according to the water quality detection signal obtained again, the drainage pump is controlled to operate until it is determined that the first height has not been drained according to the water quality detection signal, and the drainage pump is continued to be controlled to continue to operate for the first preset time; The first preset duration is determined according to the volume of the drainage pipeline between the water quality sensor and the drainage pump and the operating power of the drainage pump.

6. The control method according to claim 5, characterized in that: After controlling the drainage pump to continue running for the first preset time period, the method further includes: The power supply to the water quality sensor and the drain pump is stopped.

7. The control method according to claim 4, characterized in that: After waiting for a second preset time period, obtaining again the water quality detection signal generated by the water quality sensor; Determine whether the dehydration operation time reaches the set operation time; Waiting for a second preset time and then obtaining the water quality detection signal generated by the water quality sensor again includes: after waiting for the second preset time and the dehydration operation time does not reach the set operation time, obtaining the water quality detection signal generated by the water quality sensor again.

8. The control method according to any one of claims 1 to 7, characterized in that: Before obtaining the water quality detection signal generated by the water quality sensor, the method further includes: Obtaining a water level detection signal generated by a water level sensor; The obtaining of the water quality detection signal generated by the water quality sensor comprises: when it is determined according to the water level detection signal that the water level height is lower than a second height, obtaining the water quality detection signal generated by the water quality sensor; The second height is the minimum detection height of the water level sensor, and the second height is greater than the first height.

9. A control device for a washing device, characterized in that: include: A control unit, used for determining to start the drainage operation and controlling the operation of the drainage pump; A signal acquisition unit, used to acquire a water quality detection signal generated by a water quality sensor; A judging unit, configured to judge whether there is water to be drained at a first height according to the water quality detection signal, wherein the first height is the height at which the detection end of the water quality sensor is located; The control unit is further used to control the drainage pump to continue running when it is determined that the first height needs to be drained according to the water quality detection signal.

10. A washing device, characterized in that: Includes controller, water quality sensor and drain pump; The controller is used to control the operating state of the drainage pump according to the water quality detection signal generated by the water quality sensor in accordance with the control method of the washing device according to any one of claims 1 to 8.

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