Delivery Compensation Control Method, Device and Medium of Clothing Treatment Equipment

Abstract

The present invention relates to the technical field of clothing treatment, and specifically provides a method and device for compensating and controlling the dispensing of a clothing treatment agent, and a medium. Among them, the clothing treatment device includes a dispensing device, and the dispensing device includes: at least one storage unit, a switching mechanism capable of switching between a connected state and a non-connected state, and a weighing assembly. The weighing assembly includes a measuring basket and a counterweight. The method for compensating and controlling the dispensing includes: moving the counterweight in a direction close to the switching mechanism before the weight of the clothing treatment agent received in the measuring basket reaches a set value; so that: the counterweight can abut against the switching mechanism in advance and apply an external force to the switching mechanism; and making the switching mechanism switch to the non-connected state at least under the action of the external force. Through such a setting, it is possible to seek to achieve accurate dispensing of the clothing treatment agent by using weight as a measurement unit.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing, and in particular to a feeding compensation control method, a feeding compensation control device, a computer-readable storage medium, and a control device for clothing processing equipment. Background Art

[0002] For precise delivery washing machines, the delivery volume is usually used as the unit of measurement. For example, the delivery volume each time should be accurate to 1 ml. Using delivery volume as the unit of measurement will cause the following problem: if the temperature of the use environment is significantly different from the reference temperature in the design stage, the weight corresponding to the same volume of clothing treatment agent will be significantly different (from the perspective of precise delivery), which will affect the performance of the precise delivery model. For example, the inventor discovered during the product research stage that some villa users would place the washing machine in outdoor scenes such as terraces. The temperature of the outdoor scene itself deviates from the reference temperature in the design stage. In addition, the temperature of the outdoor scene itself has a temperature difference of up to 50°C throughout the year. As a result, from the perspective of precise delivery, there will be a common problem of "less delivery in summer and more delivery in winter".

[0003] In addition, since most of the current laundry treatment agents are dispensed by suction, if the suction is too fast or when the laundry treatment agent is about to run out, bubbles will be generated. The generation of bubbles will inevitably be measured as volume, which will reduce the amount of laundry treatment agent dispensed in disguise.

[0004] Accordingly, the art needs a new technical solution to solve the above problems. Summary of the invention

[0005] Considering the problem of inaccurate dispensing of clothing treatment agents that currently use dispensing volume as the unit of measurement, the present invention aims to provide a compensation mechanism included in the dispensing process that uses the weight of clothing treatment agents as the unit of measurement.

[0006] The first aspect of the present invention provides a method for controlling the dosing compensation of a laundry treatment device. The dosing device includes: 1) at least one storage unit, which forms a storage cavity capable of containing a laundry treatment agent; 2) a switching mechanism capable of switching between a connected state and a non-connected state; 3) a weighing assembly, which includes: 31) a measuring basket capable of receiving the laundry treatment agent and transferring the laundry treatment agent to the laundry treatment tub; wherein, when the switching mechanism is in the connected state, the laundry treatment agent in the storage cavity can be dosed into the measuring basket; 32) a counterweight movably disposed relative to the measuring basket and moving in a direction closer to the switching mechanism when the weight of the laundry treatment agent received by the measuring basket reaches a set value; the control method includes: causing the counterweight to move in a direction closer to the switching mechanism before the weight of the laundry treatment agent received by the measuring basket reaches the set value; so that: the counterweight can be brought into contact with the switching mechanism in advance and exert an external force on the switching mechanism; causing the switching mechanism to switch to the non-connected state at least under the action of this external force.

[0007] With such a setting, it is possible to seek to determine the dosing amount based on the increase in the dosing device by the weight of the received laundry treatment agent, thus ensuring the realization of accurate dosing. Corresponding to this dosing device, a corresponding compensation mechanism is given to correct the increased dosing amount due to the delayed closing during the dosing process, so as to achieve the accurate dosing of the laundry treatment agent based on the dosing device and the compensation mechanism for this dosing device.

[0008] For the above dosing compensation control method, in a possible implementation manner, the weighing assembly includes an electromagnetic balance, and the electromagnetic balance includes: 41) a lever, with the counterweight and the measuring basket respectively disposed at both ends of the fulcrum of the lever; 42) a first magnetic component capable of generating a magnetic attraction force with the counterweight, so that: when the weight of the laundry treatment agent received in the measuring basket reaches a set value corresponding to the magnetic attraction force, the counterweight overcomes gravity and the magnetic attraction force and moves in a direction closer to the switching mechanism; the "causing the counterweight to move in a direction closer to the switching mechanism before the weight of the laundry treatment agent received by the measuring basket reaches the set value" includes: adjusting the effective gravity of the counterweight and / or the magnetic attraction force between the counterweight and the first magnetic component, so that the counterweight moves in a direction closer to the switching mechanism before the weight of the laundry treatment agent received by the measuring basket reaches the set value.

[0009] With such a setting, a way to cause the counterweight to move in advance is given.

[0010] Among them, the effective gravity of the adjustable counterweight can be, for example: reducing the amount of the counterweight through experiments, calculations, etc. during the design stage; the counterweight includes multiple parts, and one or more of these parts can be converted into ineffective gravity (for example, the counterweight includes a base body and multiple fragments arranged on the base body, and the multiple fragments can be removed from the base body. In the case where one of the fragments is removed from the base body and supported by a support structure that has no connection with the base body, this fragment can be converted into ineffective gravity);

[0011] The magnetic attraction force between the adjustable counterweight and the first magnetic component can be, for example, increasing the distance between the two or adjusting the magnetic strength of the first magnetic component, etc.

[0012] Those skilled in the art can determine the specific adjustment method for realizing the premature movement of the counterweight according to actual needs. For example, it can be: basic adjustment through the counterweight, micro-adjustment through changing the magnetic strength, etc.

[0013] For the above-mentioned dosing compensation control method, in a possible implementation manner, the first magnetic component is an electromagnet, and the "making the counterweight move in the direction close to the switching mechanism before the weight of the laundry treatment agent received by the metering basket reaches the set value" includes: reducing the current of the electromagnet, so that the counterweight moves in the direction close to the switching mechanism before the weight of the laundry treatment agent received by the metering basket reaches the set value.

[0014] Through such a setting, it is possible to seek a more flexible and accurate adjustment of the timing when the counterweight starts to move.

[0015] For the above-mentioned dosing compensation control method, in a possible implementation manner, the switching mechanism is a two-position two-way valve. The two-position two-way valve includes a valve body and a valve core. The valve body forms a valve cavity, and the valve core can slide freely along the valve cavity, so as to switch the two-position two-way valve between a connected state and a non-connected state through this sliding. Among them, a push rod is arranged at the first end of the valve core along its sliding direction, and the counterweight can move to abut against the push rod.

[0016] Through such a setting, a specific form of the switching mechanism is given.

[0017] For the above-mentioned dosing compensation control method, in a possible implementation manner, a second magnetic component is arranged at a position in the valve cavity corresponding to the second end of the valve core along its sliding direction. The "making the switching mechanism switch to the non-connected state at least under the action of this external force" includes: generating a magnetic attraction force between the second magnetic component and the valve core, so that the valve core switches the two-position two-way valve to the non-connected state under the cooperation of the magnetic attraction force and the external force applied by the counterweight.

[0018] With such a setting, a specific form that can promote the quick switching of the two-way two-position valve to the non-connected state is given.

[0019] For the above-mentioned dosing compensation control method, in a possible implementation manner, the second magnetic component is an electromagnet, and the "generating a magnetic suction force between the second magnetic component and the valve core, so that the valve core switches the two-way two-position valve to the non-connected state under the cooperation of the magnetic suction force and the external force applied by the counterweight block" includes: energizing the electromagnet in a first manner, so as to generate a magnetic suction force between the second magnetic component and the valve core that can promote the valve core to slide to a position corresponding to the non-connected state.

[0020] With such a setting, a specific form in which the second magnetic component promotes the quick switching of the two-way two-position valve to the non-connected state is given.

[0021] For the above-mentioned dosing compensation control method, in a possible implementation manner, in addition to "generating a magnetic suction force between the second magnetic component and the valve core, so that the valve core switches the two-way two-position valve to the non-connected state under the cooperation of the magnetic suction force and the external force applied by the counterweight block", the second magnetic component is further configured to be able to: by energizing the electromagnet in a second manner, generate a magnetic repulsive force between the second magnetic component and the valve core that can make the valve core slide to a position corresponding to the connected state.

[0022] With such a setting, a complete application mode of the second magnetic component on the two-way two-position valve is given.

[0023] The second aspect of the present invention provides a computer-readable storage medium, which includes a memory, and the memory is adapted to store multiple program codes, and the program codes are adapted to be loaded and run by a processor to execute the dosing compensation control method of the laundry treatment device described in any one of the foregoing.

[0024] It can be understood that this computer-readable storage medium has all the technical effects of the dosing compensation control method of the laundry treatment device described in any one of the foregoing, and will not be elaborated here.

[0025] Those skilled in the art can understand that all or part of the processes in the control method of the present invention can be completed by instructing relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above-mentioned method embodiments can be implemented. Among them, the computer program includes computer program code. It can be understood that the program code includes, but is not limited to, the program code for executing the dosing compensation control method of the laundry treatment device. For the sake of convenience of description, only the part related to the present invention is shown. The computer program code can be in the form of source code, object code, executable file or some intermediate form, etc.

[0026] In a third aspect of the present invention, a control device is provided. The control device includes a memory and a processor. The memory is adapted to store multiple program codes, and the program codes are adapted to be loaded and run by the processor to execute the dosing compensation control method of the laundry treatment device described in any one of the foregoing items.

[0027] It can be understood that the control device has all the technical effects of the dosing compensation control method of the laundry treatment device described in any one of the foregoing items, which will not be elaborated herein. The control device may be a control device formed by various electronic devices.

[0028] In a fourth aspect of the present invention, a dosing compensation control device for a laundry treatment device is provided. The device includes a control module, and the control module is configured to be able to execute the dosing compensation control method of the laundry treatment device described in any one of the foregoing items.

[0029] It can be understood that the control device has all the technical effects of the dosing compensation control method of the laundry treatment device described in any one of the foregoing items, which will not be elaborated herein.

[0030] In the description of the present invention, the "control module" may include hardware, software, or a combination of both. A module may include a hardware circuit, various suitable sensors, communication ports, a memory, and may also include a software part, such as program code, or may be 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, in hardware, or in a combination of both. The non-transitory computer-readable storage medium includes any suitable medium for storing program code, such as magnetic disks, hard disks, optical disks, flash memories, read-only memories, random access memories, and the like.

[0031] Furthermore, it should be understood that since the setting of the control module is only for illustrating the functional units in the system corresponding to the dosing compensation control method of the laundry treatment device of the present invention, the physical device corresponding to the control module may 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 being one is only illustrative. Those skilled in the art can understand that the control module can be adaptively split according to the actual situation. The specific splitting 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 splitting will all fall within the protection scope of the present invention. Description of the Drawings

[0032] The present invention will be described below by taking a laundry treating apparatus as a drum washing machine as an example and with reference to the accompanying drawings. In the accompanying drawings:

[0033] Figure 1 A schematic structural view of a dosing device for a laundry treating agent of a drum washing machine showing an embodiment of the present invention; and

[0034] Figure 2 A schematic flow chart of a dosing compensation control method for a drum washing machine showing an embodiment of the present invention.

[0035] List of Reference Numerals:

[0036] 1. Storage unit; 11. Housing; 12. Concave structure; 13. Guide pipe; 14. Float; 15. Filling port; 16. Vent hole; 2. Two-position two-way valve; 21. Liquid inlet; 22. Valve body; 23. First electromagnet; 24. Valve core; 25. Push rod; 26. Liquid outlet; 27. Pushing platform; 3. Electromagnetic balance assembly; 31. Counterweight; 32. Rotating shaft; 33. Lever; 34. Second electromagnet; 35. Limit block; 36. Support platform; 37. Bearing platform; 38. Measuring basket; 4. Flushing pipeline; 41. Flushing pipe; 42. Liquid guiding pipe; 43. Receiving platform. Detailed implementation manners

[0037] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention, etc.

[0038] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] In addition, in order to better illustrate the present invention, numerous specific details are given in the following detailed implementation manners. Those skilled in the art should understand that the present invention can also be implemented without some specific details. In some instances, the principles of cookers well-known to those skilled in the art are not described in detail in order to highlight the gist of the present invention.

[0040] Taking a drum washing machine as an example of a laundry treatment device, a drum washing machine is usually equipped with a heating module, which is mainly used to heat the washing water to a certain extent to facilitate the dissolution of the laundry treatment agent and promote the degree of stain decomposition by the laundry treatment agent. Therefore, for the same laundry to be washed, when using washing water at different temperatures for washing, the amount of laundry treatment agent consumed should be different.

[0041] In the case of placing the drum washing machine in an outdoor environment, assuming that the current outdoor environment scenario is winter in the north, the density of the laundry treatment agent will increase as the temperature decreases. Assuming that the same volume of laundry treatment agent as the designed volume is taken out for the laundry to be washed, there will be a problem of excessive addition of the laundry treatment agent. On this basis, assuming that the heating module is used, referring to the above description of the influence of the use of the heating module on the laundry treatment agent, the use of the heating module should reduce the amount of laundry treatment agent used. Therefore, in the case where the two conditions of "placing the washing machine in the outdoor environment in winter in the north" and "using the heating module to heat the washing water" coexist, assuming that the laundry treatment agent is put in according to the designed volume, there will obviously be a problem of excessive dosing. This is the starting point for proposing the present invention, or can be called the application scenario particularly suitable for the present invention.

[0042] Corresponding to the precise dosing model, first, a dosing device for accurately dosing the laundry treatment agent is configured on the drum washing machine. Refer to Figure 1 , Figure 1 which shows a schematic structural diagram of the dosing device for the laundry treatment agent of a drum washing machine according to an embodiment of the present invention. As Figure 1 shown, in a possible implementation manner, the structure of the dosing device mainly includes a detergent box 1 for containing the laundry treatment agent, a two-position two-way valve 2 as a switching mechanism that can switch the detergent box between a dosing state allowing the laundry treatment agent to flow out and a non-dosing state blocking the outflow of the laundry treatment agent, an electromagnetic balance assembly 3 for weighing the dosed laundry treatment agent, and a flushing pipeline 4 for dosing the laundry treatment agent into the inner drum. Among them:

[0043] The detergent box includes at least one storage unit, and each storage unit corresponds to a kind of laundry treatment agent. For the convenience of description, this embodiment takes the detergent box including one storage unit as an example for illustration. The storage unit 1 mainly includes a housing 11, a recessed structure 12, a guiding pipe 13, and a float 14. Specifically:

[0044] A storage cavity capable of storing a laundry treatment agent is formed inside the housing 11. The lower end opening of the guiding tube 13 extends out of the bottom wall of the housing and is connected to the liquid inlet 21 of the two-position two-way valve 2. If the guiding tube is an elastic hose with a relatively small radial dimension (hereinafter referred to as a hose), as the liquid level of the laundry treatment agent changes, the upper end opening of the hose can rise and fall with the float 14. The float is arranged at the upper end opening of the hose. The float is mainly used to always limit the upper end opening of the hose to a position slightly below the liquid level of the laundry treatment agent in the storage cavity. For example, by setting the float, the upper end opening of the hose can always be about 1-2 mm below the liquid level. In this way, it can ensure that the laundry treatment agent can smoothly enter the hose. Constrained by the float, the laundry treatment agent with a certain viscosity can enter the hose through the upper end opening and slowly slide down along the narrow tube wall to the lower end opening instead of directly pouring into the lower end opening. When flowing to the lower end opening, the pressure and flow rate of the laundry treatment agent tend to be consistent. The bottom wall of the housing is formed with or provided with a concave structure 12 so that when the laundry treatment agent is about to be exhausted, the float can just be accommodated in or can freely be accommodated in the position on the bottom wall of the housing corresponding to this concave structure. On the basis of restricting the movement space of the float, setting this structure as a concave structure lower than the bottom wall of the housing can also ensure that the laundry treatment agent can be exhausted to the greatest extent before replenishment.

[0045] In addition, a filling port 15 for allowing a user to replenish (such as filling) the laundry treatment agent is also provided on the housing. For example, the filling port 15 is configured with a cover body having a vent hole 16 to maintain the air pressure balance between the inside and outside of the housing during the use of the detergent box.

[0046] The two-position two-way valve 2 mainly includes a valve body 22 having a liquid inlet 21 (above) and a liquid outlet 26 (below). A valve cavity is formed inside the valve body, and a valve core 24 that can move freely therein is accommodated in the valve cavity. By moving the valve core, the two-position two-way valve 2 can be switched between an open state and a closed state.

[0047] Specifically, when an external force is applied to the two-position two-way valve 2 to make it in the open state, the liquid inlet 21 and the liquid outlet 26 are communicated. At this time, the laundry treatment agent in the detergent box can enter the valve cavity from the liquid inlet 21 and reach the measuring basket 38 of the electromagnetic balance assembly 3 through the liquid outlet 26. At this time, the detergent box is in a state allowing the laundry treatment agent to be put in. When the two-position two-way valve is in the closed state, the liquid inlet 21 and the liquid outlet 26 are not communicated, and the laundry treatment agent entering the valve cavity from the liquid inlet 21 cannot reach the measuring basket 38 of the electromagnetic balance assembly 3 through the liquid outlet. At this time, the detergent box is in a state not allowing the laundry treatment agent to be put in.

[0048] In a possible implementation, the valve core is magnetized and is configured with a push rod 25. The first end (left end) of the push rod extends out of the valve body, and the second end (right end) of the push rod is fixedly connected to the first end (left end) of the valve core. A first electromagnet 23 as a second magnetic component is arranged in the valve cavity near the second end (right end) of the valve core, and it is defined that when the first electromagnet is energized, the magnetism of the second end of the valve core is the same as that of the first electromagnet. In a specific example, a push platform 27 with a relatively large cross-sectional area is arranged at the first end of the push rod 25, so that the external force from the counterweight 31 of the electromagnetic balance can be stably and reliably applied to the first end of the push rod. In this way:

[0049] 21) When the first electromagnet is energized, the valve core can move from the second end to the first end (from right to left) under the action of the magnetic repulsive force generated between the first electromagnet and the valve core until the valve body opens the liquid outlet, so that the two-position two-way valve 2 is in the open state.

[0050] 22) When the first electromagnet is de-energized, the first electromagnet is converted into an ordinary iron core. By applying an external force to the first end of the push rod, the valve core can move from the first end to the second end (from left to right). During the process of the valve core moving from left to right under the action of the external force, the magnetic attractive force generated between the iron core of the first electromagnet and the valve core can promote this movement until the valve body blocks the liquid outlet, so that the two-position two-way valve is in the closed state. That is to say, when an external force is applied to the first end of the push rod and the first electromagnet is de-energized, the two-position two-way valve can be reliably switched to the closed state.

[0051] Preferably, the magnetism of the first electromagnet when energized should be significantly greater than the magnetism of the second end of the valve core. In this way, after the first electromagnet is energized, the magnetic repulsive force based on the magnetism of the first electromagnet can push the valve core to the left by a certain distance to reliably open the two-position two-way valve; after de-energization, the magnetic attractive force based on the magnetism of the valve core itself is not sufficient to move the valve core to the right to the position where the two-position two-way valve is closed, and an external force must be applied to the first end of the push rod at the same time. That is, under the combined action of the magnetic attractive force and the external force, the valve core can move to the right to the position where the two-position two-way valve is in the closed state. Specifically, when an external force is applied to the push rod, the valve core first moves a short distance to the right. After that, a relatively large magnetic attractive force can be generated between the valve core and the first electromagnet. After the magnetic attractive force increases, the two-position two-way valve can be switched to the closed state only by means of the magnetic attractive force, and at this time, the continuous application of the external force can be omitted. On the premise that the closed state of the two-position two-way valve can be achieved faster, the amount of the laundry treatment agent discharged during this period will be reduced, and the discharge error caused thereby will also be reduced accordingly.

[0052] The electromagnetic balance assembly mainly includes a second electromagnet 34 with adjustable magnetism as the first magnetic component, a metering basket 38 for receiving the laundry treatment agent, and a counterweight 31 that can move when the weight of the laundry treatment agent received in the metering basket reaches a set value. Specifically:

[0053] Through the movement of the counterweight 31, an external force can be applied to the first end of the push rod when the dispensing weight of the laundry treatment agent reaches the set value. As described above, through the cooperation of this external force and the first electromagnet, the two-position two-way valve can be switched to the closed state.

[0054] The second electromagnet 34 is mainly used to combine with the counterweight to construct multiple simulated gravities corresponding to different washing programs. Specifically, when the second electromagnet is not energized, the simulated weight is the self-weight of the counterweight. When the second electromagnet is energized, by adjusting the energizing current of the second electromagnet, the magnetic attraction force on the counterweight can be changed, thereby constructing a simulated weight corresponding to the detergent dispensing amount of different washing programs.

[0055] For example, the number of second electromagnets can include one or more. Taking multiple as an example, it can be: the magnetisms of the second electromagnets are the same, and the on-off amount of the second electromagnets can be controlled to achieve the dispensing amount control corresponding to different washing programs. Theoretically, it can also be replaced in this way: the magnetisms of multiple second electromagnets are different, and multiple second electromagnets can be arranged below the lower end of the counterweight in a movable manner. When different second electromagnets reach below the lower end of the counterweight, energizing them can achieve the dispensing amount control corresponding to different washing programs. However, for this alternative solution, the difficulty and complexity of achieving precise control of the moving distance will be obvious. Therefore, the former is easier to implement in non-essential cases.

[0056] In this way, an external force is applied to the first end of the push rod when the dispensing weight of the laundry treatment agent reaches the set value corresponding to different washing programs, that is: for any washing program, the counterweight starts to move after reaching the dispensing weight corresponding to this washing program, and thus the two-position two-way valve is switched to the closed state.

[0057] In a possible implementation manner, the counterweight 31 is in an arc structure. It should be noted that the arc structure here should be understood as being roughly a strip structure and the axis of the strip structure roughly forms an arc. For example: the radial dimensions of the strip structure can be equal or unequal. More specifically, the counterweight is in a circular arc structure, and the radian of the circular arc is consistent with its movement trajectory, that is: with the axis passing through the center of the circular arc and perpendicular to the plane where the circular arc is located as the rotation axis 32, the counterweight can rotate around this rotation axis. The upper end of the counterweight can abut against the push table to apply an external force to the first end of the push rod, and the lower end of the counterweight just aligns with the second electromagnet 34.

[0058] Still referring to Figure 2 , the counterweight is configured with a lever 33. The axis of the rotating shaft serves as the fulcrum of the lever. The counterweight is fixed to the first end (left end) of the lever, and the metering basket for receiving the laundry treatment agent is fixed to the other end (right end) of the lever. In this way, after the laundry treatment agent received in the metering basket reaches a certain weight, if the laundry treatment agent continues to be put into it, the counterweight can overcome the simulated weight, rotate clockwise until it abuts against the push rod of the push table and further apply an external force to the push table.

[0059] The lever is provided with a limiting structure at a position close to the fulcrum (the side close to the counterweight). For example, the limiting structure is a limiting block 35. In this way, when the counterweight reaches the lowest position, blocked by the limiting block, the lever is in a horizontal state. At the same time, when the counterweight reaches the lowest position, it can avoid physical contact between the second electromagnet and the counterweight, that is, it can maintain a state of non-contact and only alignment between the two. The lever is also configured with a support platform 36. For example, the support platform can be arranged on the body of the drum washing machine. The aforementioned second electromagnet, limiting block, and the bearing platform 37 serving as the installation carrier of the rotating shaft are all arranged on the support platform.

[0060] Based on such a structure, the working principle of the feeding device is as follows: Assume that the simulated weight of the counterweight corresponding to a certain washing program is G, the self-weight of the metering basket is g1, the feeding weight of the laundry treatment agent in a certain washing program is g2, the length from the center of gravity of the counterweight to the rotating shaft (referred to as the force arm of the counterweight) is L1, and the length from the center of gravity of the metering basket filled with the minimum usage amount of the laundry treatment agent to the rotating shaft (referred to as the force arm of the metering basket) is L2. Then the critical condition is the condition for the balance of the lever, that is: G = L2(g1 + g2) / L1. On the premise that the feeding amount of the laundry treatment agent satisfies this critical condition, if the laundry treatment agent continues to be fed, the counterweight will timely overcome the simulated gravity constructed by the magnetic suction force and its own weight, and approach the first end of the push rod by rotating clockwise around the rotating shaft so as to apply an external force to the first end.

[0061] In a possible implementation manner, since the weights of the counterweight and the metering basket connected to both ends of the lever are very light (usually not exceeding 100 g), the material of the lever is preferably a material with ultra-light weight to improve sensitivity and reduce errors. The material of the counterweight can be entirely or only the part close to the second electromagnet selected as a magnetic conductive material such as iron. Taking the part close to the second electromagnet selected as a magnetic conductive material such as iron as an example, according to the actual situation, the material of the counterweight can be selected and adjusted to construct a counterweight with better configuration in terms of weight, shape, etc.

[0062] The flushing pipeline mainly includes a flushing pipe 41 and a liquid guiding pipe 42. Among them, the flushing pipe is mainly used to flush the laundry treatment agent in the metering basket and transfer it to the position corresponding to the liquid guiding pipe, while the liquid guiding pipe is mainly used to deliver this part of the flushed laundry treatment agent to the inner drum. Exemplarily, a receiving platform 43 is provided below the metering basket, and the liquid guiding pipe is arranged at the lowest position of the receiving platform. After the flushed laundry treatment agent reaches the receiving platform, it gathers at the position of the tabletop corresponding to the liquid guiding pipe and is further put into the inner drum.

[0063] After the feeding weight of the laundry treatment agent reaches the set value, the counterweight rotates upward and the metering basket rotates downward. At this time, the opening side of the metering basket will be aligned with the nozzle of the flushing pipe. For example, when the counterweight rotates to the position where the two-position two-way valve is closed, the flushing pipe discharges water so that the laundry treatment agent in the metering basket can be flushed to the receiving platform.

[0064] Among them, micropores are distributed on the basket body part of the metering basket. By setting the aperture size of the micropores, the metering basket can have the following properties:

[0065] 41) Before the feeding weight of the laundry treatment agent reaches the set value, that is, before being flushed, the laundry treatment agent with a certain viscosity will not ooze out. Therefore, it can ensure the receiving and metering functions that the metering basket should have before being flushed;

[0066] 42) After the laundry treatment agent is flushed clean, such as after the flushing stops, the clear water remaining in the metering basket or the laundry treatment agent remaining in the metering basket that is greatly diluted to be close to clear water can naturally drain out through the micropores. In this way, with the completion of the flushing, the receiving and metering functions of the metering basket can be quickly restored.

[0067] In this way, during the process of the flushing pipe flushing the laundry treatment agent, under the flushing action of the water from the flushing pipe, most of the laundry treatment agent quickly discharges from the opening side, and a small part of the diluted laundry treatment agent discharges through the micropores under the action of the flushing force.

[0068] Regarding the metering function and the flushing function of the metering basket, the inventor needs to make the following special explanations: The designed service life of a household washing machine usually includes 2000 washing cycles. Taking the example of washing clothes 4 times a week, the washing machine can be used for about 10 years (under normal circumstances, the washing machine can be used for about 12 years). The metering basket is usually made of non-magnetic stainless steel. Analyzing according to a designed service life of 4000 cycles and a flushing time of 2 minutes each time (usually 1 - 2 minutes), the flushing faced during the designed service life can be converted into a continuous flushing of 5.5 days for a plate-shaped component made of stainless steel. Obviously, for components made of stainless steel, such a flushing volume will hardly result in a detectable weight loss. Therefore, when applying the metering basket to the dosing device of the present invention, its flushing function can be reliably completed on the premise of accurately realizing its metering function.

[0069] Based on the above dosing device, the drum washing machine is further equipped with a controller, and the controller includes a control module, and the control module is configured to be able to at least execute the following dosing compensation control method.

[0070] Referring to Figure 2 , Figure 2 FIG. shows a schematic flow chart of the dosing compensation control method of the drum washing machine according to an embodiment of the present invention. As Figure 2 shown, in a possible implementation manner, the dosing compensation control method mainly includes the following steps:

[0071] S201. Reduce the current of the second electromagnet to make the counterweight rotate upward in advance, that is: move in the direction close to the switching mechanism before the weight of the laundry treatment agent received by the metering basket reaches the set value;

[0072] Among them, for each washing program, there is a set value for the weight of the laundry treatment agent. Corresponding to this set value, the second electromagnet has a set current, and the reduction of the current is based on this corresponding relationship.

[0073] S202. After the counterweight abuts against the push table of the two-position two-way valve, first in the first stage, the valve core only moves to the right by the external force applied by the counterweight, that is: move in the direction of switching the two-position two-way valve to the non-connected state;

[0074] S203. After the first stage is completed and enters the second stage, energize the first electromagnet to generate a magnetic suction force between the first electromagnet and the valve core (in the first way). In the second stage, the valve core further moves to the right under the cooperation of the magnetic suction force and the external force applied by the counterweight until the two-position two-way valve is switched to the non-connected state.

[0075] It is understandable that those skilled in the art can plan the duration relationship between the first stage and the second stage according to the actual situation, and can determine the magnitude of the current of the first electromagnetic valve, the degree of reduction of the current of the second electromagnetic valve, etc. according to the actual situation. For example, it can be: the current of the first electromagnetic valve can be a constant current or a variable current, such as a gradually increasing current, etc.

[0076] It can be seen that in the dosing compensation control method of the invention, based on a dosing device capable of dosing with the weight of the laundry treatment agent as the measurement unit, by adding a compensation mechanism for the phenomenon of closing lag in the dosing device, accurate dosing of the laundry treatment agent is achieved. Specifically, by starting the movement of the counterweight towards the valve core in advance in the early stage and accelerating the movement of the valve core in the later stage, the increase in the dosing amount caused by the closing lag is compensated. Based on the dosing device with a compensation mechanism, it is possible to achieve accurate dosing of the laundry treatment agent.

[0077] It should be noted 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 effects of the present invention, it is not necessary for different steps to be executed in such an order. They can be executed simultaneously or in other orders, and certain steps or elements in the steps can also be added, replaced or omitted. These changes are all within the protection scope of the present invention, etc. For example, the first electromagnetic valve can be energized in both the first stage and the second stage.

[0078] So far, the technical solution of the present invention has been described in combination with the preferred embodiments. 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 all fall within the protection scope of the present invention.

Claims

1. A method for compensating and controlling the dispensing of a laundry treatment device, characterized in that, The clothing treatment device includes a dosing device and a clothing treatment tub. The dosing device includes: 1) At least one storage unit, which forms a storage cavity capable of containing a clothing treatment agent; 2) A switching mechanism, which can switch between a connected state and a non-connected state; 3) A weighing assembly, which includes: 31) A metering basket, which can receive the clothing treatment agent and transfer the clothing treatment agent to the clothing treatment tub; Wherein, when the switching mechanism is in the connected state, the clothing treatment agent in the storage cavity can be dosed into the metering basket; 32) A counterweight, which is arranged relative to the metering basket in a movable manner and moves in a direction close to the switching mechanism when the weight of the clothing treatment agent received by the metering basket reaches a set value; The control method includes: Making the counterweight move in a direction close to the switching mechanism before the weight of the clothing treatment agent received by the metering basket reaches the set value; so that: The counterweight can abut against the switching mechanism in advance and apply an external force to the switching mechanism; Making the switching mechanism switch to the non-connected state at least under the action of this external force.

2. The delivery compensation control method according to claim 1, wherein The weighing assembly includes an electromagnetic balance, and the electromagnetic balance includes: 41) A lever, and the counterweight and the metering basket are respectively arranged at both ends of the fulcrum of the lever; 42) A first magnetic component, which can generate a magnetic attraction force with the counterweight, so that: When the weight of the clothing treatment agent received in the metering basket reaches a set value corresponding to the magnetic attraction force, the counterweight overcomes gravity and the magnetic attraction force and moves in a direction close to the switching mechanism; The "making the counterweight move in a direction close to the switching mechanism before the weight of the clothing treatment agent received by the metering basket reaches the set value" includes: Adjusting the effective gravity of the counterweight and / or the magnetic attraction force between the counterweight and the first magnetic component, so that the counterweight moves in a direction close to the switching mechanism before the weight of the clothing treatment agent received by the metering basket reaches the set value.

3. The delivery compensation control method according to claim 2, characterized in that The first magnetic component is an electromagnet, and the "making the counterweight move in a direction close to the switching mechanism before the weight of the clothing treatment agent received by the metering basket reaches the set value" includes: Reducing the current of the electromagnetism, so that the counterweight moves in a direction close to the switching mechanism before the weight of the clothing treatment agent received by the metering basket reaches the set value.

4. The delivery compensation control method according to any one of claims 1 to 3, characterized in that The switching mechanism is a two-position two-way valve, and the two-position two-way valve includes a valve body and a valve core. The valve body forms a valve cavity, and the valve core can slide freely along the valve cavity, so that the two-position two-way valve can be switched between a connected state and a non-connected state through this sliding, Wherein, a push rod is arranged at the first end of the valve core along its sliding direction, and the counterweight can abut against the push rod through movement.

5. The delivery compensation control method according to claim 4, wherein A second magnetic component is arranged at a position in the valve cavity corresponding to the second end of the valve core along its sliding direction, The "making the switching mechanism switch to the non-connected state at least under the action of this external force" includes: Generate a magnetic attraction force between the second magnetic component and the valve core, so that the valve core switches the two-way two-position valve to a non-connected state under the cooperation of the magnetic attraction force and the external force applied by the counterweight.

6. The delivery compensation control method according to claim 5, characterized in that, The second magnetic component is an electromagnet, and the "generate a magnetic attraction force between the second magnetic component and the valve core, so that the valve core switches the two-way two-position valve to a non-connected state under the cooperation of the magnetic attraction force and the external force applied by the counterweight" includes: Energize the electromagnet in a first manner, so as to generate a magnetic attraction force between the second magnetic component and the valve core that can promote the valve core to slide to a position corresponding to the non-connected state.

7. The delivery compensation control method according to claim 6, wherein In addition to "generate a magnetic attraction force between the second magnetic component and the valve core, so that the valve core switches the two-way two-position valve to a non-connected state under the cooperation of the magnetic attraction force and the external force applied by the counterweight", the second magnetic component is also configured to be able to: By energizing the electromagnet in a second manner, generate a magnetic repulsion force between the second magnetic component and the valve core that can make the valve core slide to a position corresponding to the connected state.

8. A computer-readable storage medium, the storage medium comprising a memory, the memory being adapted to store a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by a processor to execute the dosing compensation control method of the laundry treatment device according to any one of claims 1 to 7.

9. A control device, the control device comprising a memory and a processor, the memory being adapted to store a plurality of program codes, characterized in that, The program code is adapted to be loaded and run by the processor to execute the dosing compensation control method of the laundry treatment device according to any one of claims 1 to 7.

10. A dosing compensation control device for a laundry treatment apparatus, characterized in that, The control device includes a control module, and the control module is configured to be able to execute the dosing compensation control method of the laundry treatment device according to any one of claims 1 to 7.

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