Washing equipment and detergent compensation control method thereof

Abstract

The present invention relates to the technical field of washing equipment, and specifically provides a washing equipment and a detergent compensation control method thereof, wherein the washing equipment comprises a clothes processing barrel, a suction pump and a detergent box assembly, wherein the detergent box assembly comprises a detergent box, a first liquid taking pipe and a first connecting pipe, and the detergent compensation control method comprises: judging whether the washing equipment needs to be supplemented with detergent, and the step comprises: obtaining the operating parameters of the suction pump related to the liquid density in the first liquid taking pipe; in the case where the operating parameters have a step change, determining that the washing equipment needs to be supplemented with detergent; in the case where the washing equipment needs to be supplemented with detergent, compensating and dispensing detergent to the clothes processing barrel in a set manner. Through such a setting, the fact that detergent needs to be supplemented can be known by means of a detergent box assembly with a specific structure, and based on this, the performance of the washing equipment can be guaranteed by compensating and dispensing detergent.

Description

Technical Field

[0001] The present invention relates to the technical field of washing equipment, and in particular to a washing equipment and a detergent compensation control method thereof. Background Art

[0002] As a household appliance, washing machines are favored by users because they can clean clothes without having to use their hands. They are basically popular in every household. Washing clothes inevitably requires the use of various clothing treatment agents, such as detergents, softeners, etc. Take detergents as an example. In order to ensure that clothes are well washed, detergents should be added properly and accurately dispensed. Accordingly, washing machines that can ensure accurate dispensing and have the function of automatically dispensing detergents are becoming more and more popular.

[0003] The realization of the automatic dispensing of detergent function depends on the sufficient storage of detergent in the detergent box of the washing machine. Therefore, washing machines with the automatic dispensing function of detergent are usually provided with an early warning scheme for insufficient detergent. For example, the Chinese invention patent (CN111519390A) discloses a washing machine, and specifically discloses the following content: when the amount of the detergent treatment agent contained in the treatment agent box is insufficient relative to the amount of the detergent treatment agent required in the selected operation program, the situation can be notified. It is equipped with: a treatment agent box, which contains the detergent treatment agent put into the washing drum by the automatic feeding device; a box detection unit, which detects the amount of the detergent treatment agent contained in the treatment agent box; an operation unit, which accepts the user operation for selecting any operation program from multiple operation programs; a notification unit; and a control unit. When the control unit determines that the amount of the detergent treatment agent detected by the box detection unit is less than the amount of the detergent treatment agent required in the operation program selected by the user operation accepted by the operation unit, the notification unit controls the notification unit to notify the insufficient information indicating that the detergent treatment agent is insufficient.

[0004] It can be seen that the document determines whether the detergent is insufficient based on the amount of detergent detected in real time. Although the solution can accurately report the detergent, such a solution is not necessary in combination with the washing machine itself. The reason is that as a household appliance, the washing machine will not have problems such as breaking down or even causing complete failure or even danger when the detergent is insufficient or even exhausted, like a car running out of fuel. Therefore, it is not necessary to detect the remaining amount of detergent in real time to ensure that the detergent is sufficient. In fact, it is sufficient to reflect the situation to the washing machine in the case of possible shortage (actually insufficient or close to shortage), so that the washing machine can make corresponding compensation for the detergent based on the situation.

[0005] Accordingly, the art needs a new technical solution to solve the above problems. Summary of the invention

[0006] Technical issues

[0007] The present invention aims to solve the following problems existing in the prior art: it is not necessary for household appliances to detect the remaining amount of detergent in real time to ensure that the detergent is sufficient. In addition, in the case of insufficient detergent, a certain compensation mechanism is provided for the detergent, so as to ensure that the performance of the washing device is not affected as much as possible before the phenomenon of insufficient detergent has been revealed but has not been replenished.

[0008] Technical Solution

[0009] On one hand, the present invention provides a detergent compensation control method for a washing device, the washing device comprising a clothes processing barrel, a suction pump and a detergent box assembly, the detergent box assembly comprising: a detergent box having a cavity formed therein, the cavity being capable of containing detergent, and the detergent box having an opening near the lower portion thereof; and a first liquid extraction pipe, which is arranged in the detergent box, the first end of the first liquid extraction pipe being connected to the opening so as to dispense detergent into the clothes processing barrel, the second end of the first liquid extraction pipe being connected to the cavity so as to transfer detergent from the cavity to the first liquid extraction pipe by means of the suction pump; wherein the detergent box is also provided with a A first connecting tube is provided which has an angle with the horizontal direction, wherein the upper end of the first connecting tube is connected to the cavity, and the lower end of the first connecting tube is connected to the first liquid taking tube; the detergent compensation control method comprises: judging whether the washing device needs to be supplemented with detergent; in the case where the washing device needs to be supplemented with detergent, compensating the laundry processing barrel with detergent in a set manner; wherein, the "judging whether the washing device needs to be supplemented with detergent" comprises: obtaining the operating parameters of the suction pump; in the case where the operating parameters undergo a step change, determining that the washing device needs to be supplemented with detergent; wherein, the operating parameters are parameters related to the liquid density in the first liquid taking tube.

[0010] With such an arrangement, it is possible to determine whether detergent needs to be replenished simply by a step change in the operating parameters of the suction pump.

[0011] With the help of a detergent box assembly with a specific structure, the present invention can obtain the fact that detergent needs to be replenished only through a step change in the operating parameters, without the need to detect the amount of detergent in real time. Specifically, through the cooperation of the first liquid extraction pipe and the first connecting pipe in the detergent box, the detergent can be reliably dispensed into the inner barrel when the amount of detergent is sufficient. When the amount of detergent is insufficient, there is no need to detect the amount of detergent in real time, and the information of insufficient detergent amount can be obtained only by the structure itself. In addition, by adjusting the height of the upper end of the first connecting pipe, the notification timing of insufficient detergent amount can be flexibly limited.

[0012] Under this premise, before the detergent is replenished, a compensation mechanism is provided in a set manner to ensure the performance of the washing device. It is understandable that, under the condition that the detergent delivered to the laundry treatment barrel is sufficient, those skilled in the art can flexibly select the specific form of the set manner according to the actual situation, such as: the compensation mechanism includes an increase in delivery time, an increase in delivery speed, and additional replenishment.

[0013] It should be noted that, compared with real-time detection of the amount of detergent, the operating parameters of the suction pump are easier to obtain. In addition, under the premise of being able to reflect the density of the liquid in the first liquid collection pipe, the operating parameters may include one or more parameters, which may be directly detected parameters, or intermediate parameters calculated from directly detectable parameters, etc., and those skilled in the art may flexibly determine them according to actual conditions.

[0014] Specifically, when the liquid level of the detergent in the cavity is higher than the upper end of the first connecting tube, the suction pump will release the detergent that reaches the opening to the clothes processing barrel. At this time, whether from the upper end of the first connecting tube or from the second end of the first liquid taking tube away from the opening, the detergent is transferred to the first liquid taking tube through extraction, so the operating parameters of the suction pump (such as power, current, voltage, speed, impeller resistance, etc.) are basically stable. When the liquid level of the detergent in the cavity drops to the upper end of the first connecting tube and begins to be exposed to the air, the air in the cavity will enter through the upper end of the first connecting tube, that is, the liquid transferred to the first liquid taking tube through extraction will be mixed with bubbles, which will significantly reduce the density of the liquid in the first liquid taking tube. The decrease in density will inevitably be accompanied by changes in the operating parameters of the suction pump. Therefore, by detecting the operating parameters of the suction pump, it is possible to promptly know whether the detergent needs to be replenished.

[0015] Regarding the above-mentioned detergent compensation control method, in a possible implementation manner, the operating parameter is an operating current of the suction pump.

[0016] Through such settings, a specific form of operating parameters is given.

[0017] Specifically, when the liquid level of the detergent is higher than the upper end of the first connecting pipe, the power consumed by the suction pump is basically stable. Normally, the power supply voltage of the suction pump is constant, and the internal resistance of the motor of the suction pump and the resistance of the impeller in the suction pump (liquid resistance) are also constant, so it can be described as the current and power are basically stable. That is: when the voltage remains unchanged, the current flowing through the motor of the suction pump is basically stable. From the time when the liquid level of the detergent drops to the same level as the upper end of the first connecting pipe, the density of the liquid is significantly reduced due to the presence of bubbles in the liquid transferred to the first liquid extraction pipe. The reduction in density will significantly reduce the resistance of the impeller of the suction pump. Once the liquid resistance is bound to decrease, the current of the suction pump will decrease and the liquid flow rate will increase at the same time, and the two will soon reach a balance. Since the current is easier to measure and the value is more accurate, the fact that the detergent needs to be replenished can be more keenly judged by the jump in the current of the suction pump.

[0018] For the above-mentioned detergent compensation control method, in a possible implementation, the "when the washing device needs to replenish detergent, compensating the detergent to the clothing processing barrel in a set manner" includes: compensating the detergent to the clothing processing barrel in a manner of extending the operating time of the suction pump.

[0019] Through such a setting, a specific method of compensation payment is given.

[0020] For the above-mentioned detergent compensation control method, in a possible implementation, the "compensating detergent release into the clothing treatment barrel by extending the running time of the suction pump" includes: introducing water into the cavity; compensating detergent release into the clothing treatment barrel by extending the running time of the suction pump to release a mixed liquid containing water and detergent into the clothing treatment barrel.

[0021] Through such an arrangement, it is possible to achieve better compensation of detergent.

[0022] By additionally introducing water, the detergent mixed with bubbles is transformed into a mixture of detergent and water. Assuming that the water is introduced as soon as bubbles appear in the detergent, the appearance of bubbles can be prevented in time, and the problem of insufficient detergent is transformed into the problem of detergent dilution. For example, when bubbles are mixed in the detergent, the suction pump is stopped immediately, and water equal to the volume of the remaining detergent is immediately introduced into the detergent box.

[0023] For the above-mentioned detergent compensation control method, in a possible implementation, at the same time or after "introducing water into the cavity", the detergent compensation control method also includes: inputting gas into the first liquid extraction pipe and / or the cavity along a direction having an angle with the direction of extracting detergent from the first liquid extraction pipe to promote mixing of water and detergent.

[0024] For the above-mentioned detergent compensation control method, in a possible implementation, the "injecting gas into the first liquid extraction pipe and / or the cavity along a direction having an angle with the direction in which the detergent is extracted from the first liquid extraction pipe to promote the mixing of water and detergent" includes: causing the suction pump to operate in reverse, thereby injecting gas into the first liquid extraction pipe in a direction opposite to the direction in which the detergent is extracted from the first liquid extraction pipe or injecting gas into the cavity through the first liquid extraction pipe.

[0025] Through such an arrangement, a specific way to promote the mixing of water and detergent is provided. Specifically, with the help of the existing suction pump, the function of the suction pump is converted from sucking the detergent in the first liquid taking pipe to blowing air in the first liquid taking pipe in the opposite direction, so that the water and detergent are mixed more fully.

[0026] For the above-mentioned detergent compensation control method, in a possible implementation, the detergent box assembly includes a second liquid extraction pipe, and the highest point of the second liquid extraction pipe connected to the cavity is lower than the height of the upper end of the first connecting pipe, and the "when the washing device needs to replenish detergent, the detergent is compensated to the clothing processing barrel in a set manner" includes: allowing the detergent to be compensated to the clothing processing barrel through the second liquid extraction pipe.

[0027] With such an arrangement, it is possible to ensure the supply amount of detergent even if the liquid level drops.

[0028] It is understandable that the first liquid collection tube and the second liquid collection tube may share a suction pump, or may be respectively configured with suction pumps. For example, taking a shared suction pump as an example, when bubbles are mixed into the liquid in the first liquid collection tube, the suction area of ​​the suction pump is immediately switched, that is, the state from being able to suck the liquid in the first liquid collection tube to being able to suck the liquid in the second liquid collection tube. Exemplarily: the first liquid collection tube and the second liquid collection tube are respectively connected to the suction pump through a suction tube, and the suction area of ​​the suction pump can be switched by blocking one of the suction tubes.

[0029] For the above-mentioned detergent compensation control method, in a possible implementation, the detergent box is further provided with a second connecting tube having an angle with the horizontal direction, the upper end of the second connecting tube is connected to the cavity, and the lower end of the second connecting tube is connected to the second liquid extraction tube, wherein the height of the upper end of the second connecting tube is lower than the height of the upper end of the first connecting tube; or the first end of the second liquid extraction tube is connected to the opening so as to dispense detergent into the clothing processing barrel, and the second end of the second liquid extraction tube is connected to the cavity.

[0030] Through such an arrangement, two specific structural forms are provided for realizing the compensation dispensing of detergent through the second liquid extraction pipe.

[0031] For the above-mentioned detergent compensation control method, in a possible implementation, the height of the upper end of the first connecting tube has the following characteristics: when the liquid level of the detergent contained in the cavity is flush with the height of the upper end of the first connecting tube, the amount of detergent can meet at least one washing requirement.

[0032] Through such an arrangement, it is possible to obtain the fact that detergent needs to be replenished while the detergent supply can still meet the demand.

[0033] If the amount of detergent can meet the needs of one washing, it can be understood that: for a complete washing mode (such as the washing mode can be any washing mode or a selected washing mode, for example, the washing mode with the largest amount of detergent is selected), the remaining amount of detergent is roughly the same as the amount required for the washing mode.

[0034] In this state, the detergent can still meet the needs of 2-3 washes. In this way, when the detergent is low but still does not affect normal use, the user can be informed of the fact that the detergent needs to be replenished, thereby ensuring that the washing machine is replenished before the detergent is exhausted. For example, the remaining detergent can ensure the use of the nominal washing capacity (for example, 10 kg) for 2-3 standard programs.

[0035] Another aspect of the present invention provides a washing device, which includes a control module, and the control module can execute any of the detergent compensation control methods for the washing device described above.

[0036] It can be understood that the washing machine has all the technical effects of the detergent compensation control method for the washing machine described in any of the above items, which will not be repeated here.

[0037] If the washing device is equipped with a suction pump, the liquid inlet of the suction pump is connected to the position corresponding to the opening of the detergent box, and the liquid outlet of the suction pump can be connected to the clothing treatment barrel. In this way, if the washing device has the function of automatically dispensing detergent, the detergent contained in the cavity can be dispensed to the clothing treatment barrel according to the corresponding instructions of the control module of the washing device, thereby achieving the washing of clothes. In the case of insufficient detergent, the control module can inform this fact through the detected step change of the operating current of the suction pump. Based on this fact, before the detergent is replenished, the above-mentioned detergent compensation control method can be used to ensure the performance of the washing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be described below with reference to the accompanying drawings in which the washing device is a pulsator washing machine.

[0039] Figure 1A schematic structural diagram showing a detergent box assembly of a pulsator washing machine according to an embodiment of the present invention; and

[0040] Figure 2 A schematic flow chart showing a detergent compensation control method for a pulsator washing machine according to an embodiment of the present invention.

[0041] List of reference numerals:

[0042] 1. Suction tube; 2. Liquid collection tube; 3. Detergent box; 4. Connecting tube; 5. Detergent. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, although this embodiment describes the detergent box assembly of the present invention in conjunction with a pulsator washing machine, it is obvious that the detergent box assembly of the present invention can also be applied to other types of washing equipment, such as a drum washing machine, a mother-and-child washing machine, etc.

[0044] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In addition, in order to better illustrate the present invention, many specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present invention can also be implemented without certain specific details. In some examples, the stove principle and the like that are well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present invention.

[0046] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The pulsator washing machine mainly includes a shell, an outer barrel fixedly arranged in the shell, and an inner barrel rotatably arranged in the outer barrel. A pulsator is arranged at the bottom of the inner barrel, and the pulsator is equipped with a motor. The rotation of the motor drives the pulsator to rotate. The rotation of the pulsator stirs the water in the inner barrel. Along with the stirring of the water, the clothes soaked in the inner barrel can be rubbed with the water. During the friction process, the stains on the clothes can be removed. By adding detergent to the water, the degree of removal can be promoted to complete the cleaning process of the clothes. Correspondingly, the pulsator washing machine includes a detergent box assembly for dispensing detergent into the inner barrel, which is mainly used to dispense detergent into the inner barrel. In a washing machine with an automatic detergent dispensing function, the washing machine includes a control module. On the premise that the control module determines the amount of detergent currently required to be added, the required corresponding amount of detergent is dispensed into the inner barrel by controlling the suction pump, thereby achieving the cleaning process of the clothes.

[0048] Reference Figure 1 , Figure 1 The schematic diagram of the structure of the detergent box assembly of a pulsator washing machine according to one embodiment of the present invention is shown. Figure 1 As shown, the detergent box assembly mainly includes a suction pipe 1, a liquid collection pipe 2 as a first liquid collection pipe, a detergent box 3 and a connecting pipe 4 as a first connecting pipe. A cavity capable of containing detergent 5 is formed in the detergent box. The detergent box has an opening near its lower portion. The suction pipe is arranged at the opening and is connected to a suction pump so that the suction pump can dispense the required amount of detergent into the inner barrel according to the control instruction of the control module, thereby achieving the washing of clothes.

[0049] The liquid extraction pipe and the connecting pipe are both arranged in the detergent box, specifically:

[0050] In this embodiment, the liquid collection tube is a straight tube (such as a straight tube with a circular cross section) arranged at the bottom of the detergent box. The left end of the straight tube is connected to the suction tube at the opening. Since the axial dimension of the tube does not cover the cavity, the right end of the tube allows the detergent to enter the liquid collection tube. In other words, under the action of the suction pump, the detergent in the cavity can be transferred to the liquid collection tube through the right end of the liquid collection tube and further distributed to the inner barrel as needed. In this way, based on the instructions of the control module, the suction pump can distribute the detergent contained in the cavity to the inner barrel according to the amount.

[0051] In this embodiment, the connecting pipe includes a first pipe section arranged vertically and a second pipe section arranged horizontally, wherein the second pipe section is completely contained in the liquid collection pipe and the axes of the two are in line. The reason for such arrangement is that the lower port of the connecting pipe is arranged at the axis of the liquid collection pipe. In addition to increasing the liquid flow rate at the pipe mouth of the connecting pipe to generate negative pressure, it can also make the bubbles and detergent mix more evenly when gas enters the liquid collection pipe in the connecting pipe, so that the change of liquid density can be sought to be more stable. In this way, it is easier to obtain the value when measuring the operating current of the suction pump below. A part of the first pipe section extends into the liquid collection pipe so as to connect with the second pipe section, and the two roughly form a J-shaped tube. In a possible embodiment, when installing, a small hole is arranged on the pipe wall of the liquid collection pipe, and the first pipe section is inserted and sealed and fixed on the pipe wall of the liquid collection pipe.

[0052] It is understandable that the first pipe section and the second pipe section described above are only one possible implementation mode, and those skilled in the art can flexibly determine the structure of the connecting pipe according to the actual situation, such as a straight pipe, a curved pipe, a special-shaped pipe, etc., and the pipe diameter of the connecting pipe along its axial direction can be evenly or unevenly distributed. In addition, the specific position where one end of the connecting pipe is connected to the liquid collection pipe can also be flexibly determined according to the actual situation, such as being connected to the pipe wall or end of the liquid collection pipe.

[0053] In addition, the diameter of the connecting tube should be much smaller than the diameter of the liquid taking tube, such as less than or equal to 1 / 10 of the diameter of the liquid taking tube. This is because: when air enters the connecting tube, since the density of air is much smaller than the density of any liquid such as detergent, it will inevitably lead to a large amount of air entering. Once the diameter of the connecting tube is too large, when the detergent can actually still meet the demand, the excessive amount of air entering will seriously affect the normal liquid intake.

[0054] It can be seen that in the detergent box assembly of the present invention, the functions of the liquid extraction pipe include serving as a structure for transferring detergent and serving as a mounting carrier for the connecting pipe. Based on such a structure, when the amount of detergent is sufficient, the detergent can be dispensed through the combination of the liquid extraction pipe and the connecting pipe. When the amount of detergent is small, the fact that the detergent needs to be replenished can be promptly notified based on such a structural combination to ensure that the detergent can be replenished as soon as possible. Before the detergent is replenished, the present invention proposes a detergent compensation control method.

[0055] Reference Figure 2 , Figure 2 FIG. 1 is a flow chart showing a detergent compensation control method for a pulsator washing machine according to an embodiment of the present invention. Figure 2 As shown, the method mainly includes the following steps:

[0056] S21, the control module issues a control instruction to dispense detergent into the inner barrel according to the washing demand;

[0057] S22, the suction pump dispenses detergent into the inner barrel according to the operating parameters corresponding to the control instruction;

[0058] S23, judging whether the running current has a step change; if so, it can be determined that detergent needs to be replenished, and S24 is executed; if not, it indicates that the detergent is sufficient, and S25 is executed;

[0059] S24, dispensing detergent into the inner barrel as compensation;

[0060] S25. The suction pump stops running after the detergent is dispensed.

[0061] In a possible implementation, when detergent needs to be replenished, a corresponding warning message may be given. For example, the warning message is a voice announcement informing the user that detergent needs to be replenished;

[0062] When the liquid level of the detergent is higher than the upper end of the connecting tube, since what is transferred into the liquid taking tube through the extraction pump is detergent regardless of whether it is from the upper end of the connecting tube or from the right end of the liquid taking tube, the power consumed by the suction pump is basically stable when other parameters remain unchanged. Normally, the power supply voltage of the suction pump is constant, and the internal resistance of the motor and the resistance of the impeller of the suction pump are also constant, so it can be described as the operating current and power are basically stable.

[0063] When the liquid level of the detergent is flush with the upper end of the connecting pipe, the suction pump still operates according to the operating parameters corresponding to the control instructions. Since the liquid transferred to the liquid collection pipe is mixed with bubbles, the density of the liquid is significantly reduced. The decrease in liquid density is obviously accompanied by a decrease in liquid resistance and a significant decrease in the operating current of the suction pump. Therefore, it can be judged by the step change of the current whether the liquid level of the detergent has reached the height flush with the upper pipe opening of the vertical pipe section of the connecting pipe.

[0064] It is understandable that the step change here should be understood as: assuming that there is sufficient detergent, the operating current of the suction pump corresponding to the control instruction is certain, but in the case of insufficient detergent, the operating current undergoes an abnormal change and this change is more obvious.

[0065] Before the detergent shortage phenomenon has been revealed but has not been replenished, the aforementioned S24 is used to ensure that the performance of the washing equipment is not affected as much as possible.

[0066] For example, in a possible implementation manner, S24 is specifically:

[0067] The ratio of the actual net volume of the liquid extracted when the detergent is mixed with bubbles to the volume of the liquid extracted when the detergent is not mixed with bubbles is measured by experiment, and is recorded as a. Under normal circumstances, the ratio is a constant, such as, for example, a is 1 / 2. Assumption:

[0068] When no bubbles are detected, the total time required is T1; when bubbles are detected, detergent can be dispensed to the inner barrel by extending the operation time of the suction pump. The total time required based on this compensation dispensing scheme is T. And assume that:

[0069] When the bubble is detected, the time T2 has been consumed. In a specific implementation, T can be determined by the following formula (1):

[0070] T=T2+(T1-T2) / a (1)

[0071] Based on formula (1), the operating time ΔT of the suction pump that needs to be extended can be derived by the following formula (2), specifically:

[0072] ΔT=T-T1=T2+(T1-T2) / a-T1 (2)

[0073] According to the above formula (1) and formula (2), the following explanation can be made: assuming that when the suction pump just starts to extract detergent, the phenomenon of bubbles mixed in the detergent is detected by the step change of the operating current, then the extraction time (T1) of the suction pump only needs to be doubled, that is, T=2*T1; assuming that when the suction pump extracts half of the total time (T1), the phenomenon of bubbles mixed in the detergent is detected by the step change of the operating current, then the extraction time (T1) of the suction pump only needs to be increased to 1.5 times the expected time, that is, T=1.5*T1.

[0074] It can be seen that in the washing machine of the present invention, the detergent box assembly has a liquid extraction pipe and a connecting pipe. Under the premise of ensuring that the detergent can be reliably dispensed into the inner barrel when the detergent amount is sufficient, when the detergent amount is insufficient, there is no need to detect the amount of detergent in real time. Only by means of the structure of the detergent box assembly itself, the fact that the detergent amount is insufficient can be known when the operating current of the suction pump undergoes a step change. In addition, by adjusting the height of the upper end of the connecting pipe, the timing of notifying that the detergent amount is insufficient can be flexibly defined. On this basis, through the cooperation of the compensation mechanism, the probability of the problem that the performance of the washing machine is affected due to insufficient detergent is reduced as much as possible.

[0075] The aforementioned control module can be used to execute the aforementioned detergent compensation control method at the same time. In the description of the present invention, the "control module" may include hardware, software or a combination of the two. A module may include hardware circuits, various suitable sensors, communication ports, and memories, and may also include software parts, such as program codes, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, hardware, or a combination of the two. Non-temporary computer-readable storage media include any suitable medium that can store program codes, such as a disk, a hard disk, an optical disk, a flash memory, a read-only memory, a random access memory, and the like.

[0076] It is understood by those skilled in the art that the present invention implements all or part of the processes in its detergent compensation control method, and can also be completed by instructing related hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device, medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal and software distribution medium that can carry the computer program code. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0077] Further, it should be understood that since the setting of the control module is only for illustrating the functional unit for executing the above-mentioned detergent compensation control method, the physical device corresponding to the control module can be the processor itself, or a part of the software in the processor, a part of the hardware, or a part of the combination of software and hardware. Therefore, the number of control modules is only one for illustration.

[0078] It is understood by those skilled in the art that the control module can be adaptively split according to the actual situation. The specific split form of the control module will not cause the technical solution to deviate from the principle of the present invention. Therefore, the technical solutions after the split will fall within the protection scope of the present invention. For example, in the present embodiment, the control module not only sends a control instruction to the suction pump to realize the normal dispensing of detergent, but also executes the aforementioned detergent compensation control method. Obviously, the control module can be split into two independent modules.

[0079] It should be pointed out that, although the above embodiments describe the various steps in a specific order, those skilled in the art can understand that, in order to achieve the effect of the present invention, different steps do not have to be performed in such an order, they can be performed simultaneously or in other orders, and some steps can be added, replaced or omitted, and these changes are within the scope of protection of the present invention, etc. For example, the step of giving warning information can be omitted or S24 can be replaced by other compensation methods, etc.

[0080] It should be noted that although the detergent compensation control method formed by the above-mentioned specific structure of the detergent box assembly combined with the above-mentioned specific manner is introduced as an example, those skilled in the art will understand that the present invention should not be limited thereto. In fact, the user can flexibly adjust the relevant structures, steps, parameters in the steps and other elements according to the actual application scenarios and other situations.

[0081] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A detergent compensation control method for a washing machine, characterized in that: The washing device comprises a laundry treatment barrel, a suction pump and a detergent box assembly, wherein the detergent box assembly comprises: a detergent box having a cavity formed therein, the cavity being capable of containing detergent, and the detergent box having an opening near a lower portion thereof; and a first liquid taking pipe, which is arranged in the detergent box, wherein a first end of the first liquid taking pipe is connected to the opening so as to dispense detergent into the laundry treatment tub, and a second end of the first liquid taking pipe is connected to the cavity so as to transfer detergent from the cavity to the first liquid taking pipe by means of the suction pump; Wherein, a first connecting pipe having an angle with the horizontal direction is further provided in the detergent box, the upper end of the first connecting pipe is connected to the cavity, and the lower end of the first connecting pipe is connected to the first liquid extraction pipe; The control method comprises: Determine whether the washing equipment needs to be replenished with detergent; When the washing machine needs to be supplemented with detergent, the detergent is dispensed to the clothes processing tub in a set manner, which includes: introducing water into the cavity; Compensatory detergent is dispensed into the laundry processing tub by dispensing a mixed liquid containing water and detergent into the laundry processing tub in a manner of extending the operation time of the suction pump; Wherein, the “determining whether the washing equipment needs to be supplemented with detergent” includes: Obtaining operating parameters of the suction pump; In the event of a step change in the operating parameter, determining that the washing device needs to be supplemented with detergent; Wherein, the operating parameter is a parameter related to the density of the liquid in the first liquid collection pipe; At the same time or after "introducing water into the cavity", the control method further comprises: Gas is introduced into the first liquid taking pipe and / or the cavity along a direction having an angle with a direction of sucking detergent from the first liquid taking pipe to promote mixing of water and detergent.

2. The detergent compensation control method according to claim 1, characterized in that: The operating parameter is the operating current of the suction pump.

3. The detergent compensation control method according to claim 1, characterized in that: The “inputting gas into the first liquid taking pipe and / or the cavity along a direction having an angle with the direction of sucking detergent from the first liquid taking pipe to promote mixing of water and detergent” includes: The suction pump is operated in reverse, so that gas is input into the first liquid taking pipe in a direction opposite to the direction of sucking detergent from the first liquid taking pipe, or gas is input into the cavity through the first liquid taking pipe.

4. The detergent compensation control method according to claim 1 or 2, characterized in that: The detergent box assembly includes a second liquid extraction pipe, the highest point of the second liquid extraction pipe in communication with the cavity is lower than the height of the upper end of the first connecting pipe, and the "when the washing device needs to replenish detergent, compensating the detergent to the clothes processing barrel in a set manner" includes: The detergent is dispensed into the clothes processing tub through the second liquid taking pipe.

5. The detergent compensation control method according to claim 4, characterized in that: The detergent box is further provided with a second connecting pipe having an angle with the horizontal direction, the upper end of the second connecting pipe is connected to the cavity, and the lower end of the second connecting pipe is connected to the second liquid extraction pipe, wherein the height of the upper end of the second connecting pipe is lower than the height of the upper end of the first connecting pipe; or The first end of the second liquid extraction pipe is connected to the opening to dispense detergent into the laundry treatment tub, and the second end of the second liquid extraction pipe is connected to the cavity, wherein the highest point of the second end of the second liquid extraction pipe is lower than the height of the upper end of the first connecting pipe.

6. The detergent compensation control method according to claim 1, characterized in that: The height of the upper end of the first connecting tube has the following characteristics: when the liquid level of the detergent contained in the cavity is flush with the height of the upper end of the first connecting tube, the amount of the detergent can meet the need of at least one washing.

7. A washing device, characterized in that: The washing machine comprises a control module, and the control module is capable of executing the detergent compensation control method for the washing machine according to any one of claims 1 to 6.

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