Control method of washing equipment and washing equipment

Abstract

The invention discloses a control method of washing equipment and the washing equipment. The washing equipment comprises a washing barrel and an ion filter, the control method comprises the steps that in the rinsing process, water in a washing barrel circularly passes through the ion filter, impurity ions in the water are collected through the ion filter, and the water without the impurity ions returns to the washing barrel; detecting the impurity ion concentration in the ion filter; and if the duration for keeping the detected impurity ion concentration stable reaches the preset duration, ending the rinsing stage of the washing procedure. Impurity ions in water are continuously collected through the ion filter, so that the concentration of the impurity ions in the washing barrel is reduced, and the stain dissolving capacity of the water in the washing barrel is higher; by judging whether the lasting time for keeping the impurity ion concentration in the ion filter stable reaches the preset time or not, the time for ending the rinsing stage is controlled, so that the rinsing stage is accurately ended, and the washing equipment is energy-saving and environment-friendly.

Description

Technical Field

[0001] The invention belongs to the field of washing equipment, and in particular, relates to a control method of washing equipment and the washing equipment. Background Art

[0002] The rinsing stage of a washing machine is a stage in the washing process. In the rinsing stage, the washed clothes are first dehydrated, and then water is added to the washing tub to enter the rinsing cycle. The rinsing cycle includes: stirring the washing tub and the clothes to wash the clothes once, and then dehydrating the clothes again and draining the washing tub. Often, the rinsing stage will repeat the rinsing cycle many times in order to wash away the remaining stains on the clothes.

[0003] However, strictly executing the rinse cycle according to the preset number of times and duration may result in the clothes being washed but not yet rinsed, causing the washing equipment to waste water and electricity and be unenergy-efficient and environmentally unfriendly.

[0004] Existing washing equipment determines the rinsing effect by detecting the light transmittance of the water in the washing tub. If the light transmittance is close to that of tap water, it is determined to be clean and the rinsing process is stopped. However, the above process is affected by detergent, softener, bubbles in the water, some clothing pigments, etc., which may lead to inaccurate detection results, resulting in the rinsing stage not being completed even when the clothes are clean, or impurities with high light transmittance and impurities with low light transmittance are mixed, resulting in a light transmittance close to that of tap water, and it cannot be detected that the clothes still contain stains, detergent or softener, resulting in the rinsing stage being completed before the clothes are clean.

[0005] Therefore, the existing washing equipment cannot achieve accurate and feasible judgment on the end of the rinsing stage, resulting in the washing equipment wasting water and electricity and not being energy-saving and environmentally friendly.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a control method and washing equipment for a washing device. According to the judgment of the impurity ion concentration inside the ion filter, when to end the rinsing stage is controlled, thereby achieving the precise end of the rinsing stage and making the washing device energy-saving and environmentally friendly.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0009] The present invention provides a control method for a washing device, wherein the washing device comprises a washing tub and an ion filter;

[0010] The control method comprises: during the rinsing process, the water in the washing tub circulates through the ion filter, the impurity ions in the water are collected by the ion filter, and the water without the impurity ions returns to the washing tub;

[0011] Detecting the concentration of impurity ions inside the ion filter;

[0012] If the detected impurity ion concentration remains stable for a preset period of time, the rinsing phase of this washing program ends.

[0013] The present invention filters impurity ions in water through an ion filter, thereby making the water in the washing tub more capable of dissolving stains; by judging whether the impurity ion concentration inside the ion filter remains stable for a preset time, the time to end the rinsing stage is controlled, and an accurate and feasible judgment on the end of the rinsing stage is achieved, making the washing equipment energy-saving and environmentally friendly.

[0014] A further solution of the present invention is that: the rinsing stage has a first preset running time;

[0015] When the running time of the rinsing stage reaches the first preset running time, if the duration for which the impurity ion concentration remains stable is less than the preset time, the running time of this rinsing stage is extended.

[0016] In the above scheme, when the running time of the current rinse cycle reaches the first preset running time, if the impurity ion concentration remains stable for less than the preset time, the running time of the rinse stage is extended, thereby avoiding ending the rinse stage before the clothes are rinsed clean.

[0017] A further solution of the present invention is that the rinsing stage includes at least one rinsing cycle, and the rinsing cycle has a second preset running time;

[0018] When the running time of the current rinsing cycle reaches the second preset running time, if the duration for which the impurity ion concentration remains stable is less than the preset time, the running time of the current rinsing cycle is extended.

[0019] In the above scheme, when the running time of the current rinse cycle reaches the second preset running time, if the impurity ion concentration remains stable for less than the preset time, the running time of the rinse stage is extended, thereby avoiding ending the rinse cycle before the clothes are rinsed clean, and extending the running time does not require changing the water, making the washing equipment more energy-saving and environmentally friendly.

[0020] A further solution of the present invention is that the rinsing stage includes at least two rinsing cycles;

[0021] In any rinsing cycle, if the detected impurity ion concentration remains stable for a duration that reaches a preset time, the current rinsing cycle is terminated and subsequent rinsing cycles are no longer run.

[0022] In the above scheme, in any rinse cycle, if the detected impurity ion concentration remains stable for a preset period of time, the current rinse cycle is terminated and the subsequent rinse cycle is no longer run. This achieves the goal of ending rinsing during the rinse cycle, so that the washing machine does not run the rinse cycle when the clothes have been rinsed clean, making the washing machine further energy-saving and environmentally friendly.

[0023] A further solution of the present invention is that the rinsing stage includes at least one rinsing cycle;

[0024] In any rinsing cycle, if the washing device determines that the impurity ion concentration inside the ion filter is greater than or equal to a set value, the current rinsing cycle is terminated and at least one rinsing cycle is run again.

[0025] A further solution of the present invention is: the end of the current rinsing cycle includes draining water from the ion filter; and before running the rinsing cycle again, water is added to the washing tub.

[0026] In the above scheme, by determining that the impurity ion concentration inside the ion filter is greater than or equal to the set value, the current rinsing cycle is terminated, and at least one rinsing cycle is run again, and the ion filter is drained and the washing tub is filled with water, so that the ion filter can maintain a good filtering effect, the rinsing efficiency of the washing equipment is higher, and the washing equipment is further energy-saving and environmentally friendly.

[0027] A further solution of the present invention is that the water inlet of the ion filter is connected to the washing tub;

[0028] During the drainage process of the ion filter, the water inlet is controlled to be closed.

[0029] In the above scheme, by closing the water inlet during the drainage process of the ion filter, the drainage of the ion filter is reduced, thereby making the washing device more water-saving.

[0030] A further solution of the present invention is: the impurity ion concentration remaining stable means that the impurity ion concentration is less than a set value and remains stable.

[0031] In the above scheme, by limiting the control method to keep the impurity ion concentration stable, it means that the impurity ion concentration is less than the set value and remains stable, so that the judgment of the impurity ion concentration is more consistent with the change of the impurity ion concentration in the ion filter.

[0032] The present invention also provides a washing device, wherein the washing device executes the above-mentioned control method for the washing device.

[0033] A further solution of the present invention is: the ion filter includes a water inlet and a drain outlet, a cavity connecting the water inlet and the drain outlet is formed inside the ion filter, a reverse osmosis membrane is arranged on the side wall of the cavity, water inside the cavity passes through the reverse osmosis membrane into the washing tub, and the reverse osmosis membrane is used to prevent impurity ions in the water from passing through.

[0034] In the above scheme, an inlet and a drain are set through the ion filter to realize water intake and drainage of the ion filter, and a reverse osmosis membrane is set through the side wall to realize the filtration of impurity ions and enrich them inside the cavity of the ion filter, so that the impurity ion concentration inside the ion filter can more accurately reflect the impurity ion concentration inside the washing tub, reduce the impurity ion concentration in the washing tub, and make the water in the washing tub more capable of dissolving stains.

[0035] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0036] 1. According to the concentration of impurity ions inside the ion filter, the system can determine whether to end the current rinsing cycle in advance, extend the duration of the rinsing phase, or run at least one more rinsing cycle, thereby controlling when to end the rinsing phase, achieving accurate termination of the rinsing phase and extension of the washing phase, making the washing equipment energy-saving and environmentally friendly;

[0037] 2. According to the concentration of impurity ions inside the ion filter, the ion filter is controlled to discharge the impurity ions enriched in the water, so that the ion filter can continuously filter the impurity ions, reduce the concentration of impurity ions in the washing tub, and thus make the water more capable of dissolving stains;

[0038] 3. The reverse osmosis membrane of the ion filter is used to filter out impurity ions, so that the impurity ion concentration inside the ion filter can more accurately reflect the impurity ion concentration inside the washing tub, reduce the impurity ion concentration in the washing tub, and make the water in the washing tub more capable of dissolving stains.

[0039] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0041] Figure 1It is a schematic flow chart of a control method of a washing device of the present invention;

[0042] Figure 2 is a schematic flow chart of a control method for the rinsing stage of the first embodiment of the present invention;

[0043] Figure 3 is a flow chart of a control method for the rinsing stage of the second embodiment of the present invention;

[0044] Figure 4 is a schematic flow chart of a control method for the rinsing stage of Embodiment 3 of the present invention;

[0045] Figure 5 It is a schematic diagram of the structure of the ion filter of the present invention.

[0046] In the figure: 1. ion detection device; 2. water inlet; 3. drain outlet; 4. reverse osmosis membrane.

[0047] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0049] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present invention, it should be noted that, 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] like Figures 1 to 5As shown, the present invention provides a control method and a washing device for a washing device, which continuously collects impurity ions in water through an ion filter, thereby reducing the impurity ions in a washing tub, thereby making the water in the washing tub more capable of dissolving stains; by judging whether the duration for which the impurity ion concentration inside the ion filter remains stable reaches a preset duration, the time to end the rinsing stage is controlled, thereby achieving a precise end to the rinsing stage, making the washing device energy-saving and environmentally friendly.

[0052] Embodiment 1

[0053] like Figure 1 , Figure 2 and Figure 5 As shown, this embodiment provides a control method for a washing device, wherein the washing device includes a washing tub and an ion filter;

[0054] like Figure 1 As shown, the control method includes: during the rinsing process, the water in the washing tub circulates through the ion filter, the impurity ions in the water are collected by the ion filter, and the water with the impurity ions removed returns to the washing tub; the impurity ion concentration inside the ion filter is detected; if the detected impurity ion concentration remains stable for a continuous period that reaches a preset period, the rinsing stage of this washing program is terminated.

[0055] Specifically, Figure 5 As shown, the ion filter passes through the reverse osmosis membrane 4, so that the water inside the ion filter flows into the washing tub through the reverse osmosis membrane 4, and the impurity ions are blocked by the reverse osmosis membrane 4 and remain in the ion filter, thereby enriching the impurity ions in the ion filter, so that the detected impurity ion concentration inside the ion filter can more accurately reflect the impurity ion concentration inside the washing tub, reduce the impurity ion concentration in the washing tub, and make the water in the washing tub more capable of dissolving stains.

[0056] Specifically, the rinsing stage of the washing device is a stage in the washing process. In the rinsing stage, the clothes are dehydrated, water is added to the washing tub, and the rinsing cycle is entered, so that the water in the washing tub washes away the stains on the clothes. The rinsing stage that ends the current washing process is to stop the rotation of the washing tub and / or the pulsator, completely drain the water in the washing tub, and enter the next stage of the washing process.

[0057] Specifically, the impurity ions include ions of water-soluble stains on clothes. Since insoluble stains generally do not stick to clothes very tightly, such as sand and gravel, they are extremely easy to rinse and remove, while soluble stains are more difficult to rinse and remove. Therefore, whether the ions of water-soluble stains are completely removed from the clothes determines whether to end the rinsing stage.

[0058] In a specific application of this embodiment, the impurity ions include esters, alcohols, calcium ions, sodium ions, etc., wherein esters and alcohols are generated from oil stains on clothes, calcium ions are generated from calcium carbonate dust on clothes, and sodium ions are generated from sweat stains on clothes. Esters, alcohols, calcium ions, and sodium ions are all different from the active ingredients of detergents and softeners. Therefore, through the reverse osmosis membrane 4 of the ion filter, water-insoluble stains on clothes can be enriched in the ion filter, thereby enhancing the ability of the water in the washing tub to dissolve impurities, so that the efficiency of the rinsing stage is high and the effect is good.

[0059] Therefore, by filtering the impurity ions in the water with the ion filter, the water in the washing tub can dissolve stains more effectively. By judging whether the concentration of impurity ions inside the ion filter remains stable for a preset period of time, the time to end the rinsing stage is controlled, and an accurate and feasible judgment on the end of the rinsing stage is achieved, making the washing equipment energy-saving and environmentally friendly.

[0060] In this embodiment, the rinsing stage has a first preset running time; when the running time of the rinsing stage reaches the first preset running time, if the duration for which the impurity ion concentration remains stable is less than the preset time, the running time of this rinsing stage is extended.

[0061] Specifically, the rinsing stage is a stage in the washing process of the washing device. In the rinsing stage, the clothes are dehydrated, water is added to the washing tub, and the rinsing cycle begins. The rinsing cycle includes: stirring the washing tub and the clothes to wash the clothes once, then dehydrating the clothes again, and draining the washing tub. Often the rinsing stage will repeat the rinsing cycle many times in order to wash away the residual stains on the clothes. The said extension of the running time of this rinsing stage includes extending the running time of the rinsing cycle, the number of cyclic operations of the rinsing cycle, and the drainage and water filling time in the washing tub during the rinsing cycle.

[0062] Therefore, when the running time of the current rinse cycle reaches the first preset running time, if the impurity ion concentration remains stable for less than the preset time, the running time of the rinse stage is extended, thereby avoiding ending the rinse stage before the clothes are rinsed clean.

[0063] In this embodiment, the rinsing stage includes at least one rinsing cycle, and the rinsing cycle has a second preset running time; when the running time of the current rinsing cycle reaches the second preset running time, if the duration for which the impurity ion concentration remains stable is less than the preset time, the running time of the current rinsing cycle is extended.

[0064] Specifically, when the impurity ion concentration in the ion filter does not remain stable, it means that there are still stains that are continuously dissolved in the water. Therefore, when the running time of the current rinse cycle reaches the second preset running time, if the impurity ion concentration remains stable for less than the preset time, the running time of the rinse stage is extended, thereby avoiding the end of the rinse cycle before the clothes are rinsed clean, so that the running time does not need to be changed, and the washing machine is further energy-saving and environmentally friendly.

[0065] Specifically, Figure 2 As shown, in the rinsing cycle, the washing device first determines whether the impurity ion concentration inside the ion filter is less than the set value, and then determines whether the running time of the current rinsing cycle has reached the second preset running time. When the impurity ion concentration in the ion filter does not reach its solubility upper limit and does not remain stable, it means that the clothes in the washing tub are not rinsed clean, and there are still stains that continue to dissolve in the water, but the water in the washing tub is still clean, and the ion filter can still filter the impurity ions well. Therefore, when the impurity ion concentration does not reach its solubility upper limit and does not remain stable, the running time of the rinsing stage is extended, avoiding the end of the rinsing cycle before the clothes are rinsed clean, so that the extended running time does not need to change the water, which is in line with the change of the ion concentration in the filter, making the washing device further energy-saving and environmentally friendly.

[0066] In this embodiment, the rinsing stage includes at least two rinsing cycles; in any rinsing cycle, if the detected impurity ion concentration remains stable for a duration that reaches a preset time, the current rinsing cycle is terminated and the subsequent rinsing cycle is no longer run.

[0067] Therefore, in any rinse cycle, if the detected impurity ion concentration remains stable for a preset period of time, the current rinse cycle is ended and the subsequent rinse cycle is no longer run. This achieves the goal of ending rinsing during the rinse cycle, so that the washing device does not run a rinse cycle when the clothes have been rinsed clean, making the washing device more energy-efficient and environmentally friendly.

[0068] In this embodiment, Figure 2 As shown, in any rinse cycle, it is first determined whether the impurity ion concentration inside the ion filter is less than the set value, and then it is determined whether the running time of the current rinse cycle has reached the second preset running time. If not, it is determined whether the duration for which the impurity ion concentration remains stable reaches the preset duration. If so, the rinse cycle is terminated in advance and the rinsing stage is ended.

[0069] Specifically, the rinsing cycle includes: stirring the washing tub and the clothes to wash the clothes once, then dehydrating the clothes again and draining the washing tub. The washing tub and the ion filter are not drained during the rinsing cycle, and the washing tub is not filled with water. Therefore, by detecting the duration of the impurity ion concentration in the ion filter remaining stable, it can be accurately reflected whether new stains will be generated in the clothes for water to dissolve and whether the clothes have been rinsed clean.

[0070] Specifically, the first preset running time and / or the second preset running time may be merely a time period for distinguishing between executing a pre-judgment of ending the current rinse cycle early and extending the running time of the current rinse cycle in this embodiment. The first preset running time or the second preset running time may also coincide with the time for slowing down the rotation speed of the washing tub and / or impeller, defoaming the clothes, and preparing for drainage in a preset rinse program of the washing device.

[0071] Specifically, the early end of the rinsing cycle is to interrupt the preset rinsing program of the washing device and drain the washing tub; the end of the rinsing cycle is to perform the end stage of the preset rinsing program of the washing device.

[0072] In this embodiment, the rinsing stage includes at least one rinsing cycle; in any rinsing cycle, if the washing device determines that the impurity ion concentration inside the ion filter is greater than or equal to a set value, the rinsing cycle is terminated and at least one rinsing cycle is run again.

[0073] In this embodiment, the end of the current rinsing cycle includes draining water from the ion filter; and before running the rinsing cycle again, filling water into the washing tub.

[0074] In a specific application of this embodiment, the set value is the upper limit of ion solubility, for example, calcium carbonate lime is 0.00015 mol / L. Specifically, the upper limit of solubility is the standard solubility value at room temperature. More specifically, the upper limit of solubility is 95%.

[0075] Specifically, the water filling of the washing tub is to determine whether the washing tub is short of water. If so, water is added to avoid water shortage in the washing tub or excessive water replenishment.

[0076] Therefore, by determining that the impurity ion concentration inside the ion filter is greater than or equal to the set value, the current rinse cycle is terminated, and at least one rinse cycle is run again, and the ion filter is drained and the washing tub is filled with water, so that the ion filter can maintain a good filtering effect, the rinsing efficiency of the washing equipment is higher, and the washing equipment is further energy-saving and environmentally friendly.

[0077] In this embodiment, the water inlet 2 of the ion filter is connected to the washing tub; when the washing device is draining water from the ion filter, the water inlet 2 is closed.

[0078] In a specific application of this embodiment, the water inlet 2 of the ion filter is provided with a water inlet valve, and the water inlet 2 of the ion filter is provided with a drain outlet 3 and a drain valve. In another specific application of this embodiment, the water inlet 2 and the drain outlet 3 are provided with turbines respectively. The turbine or the water inlet valve guides the water in the washing tub to the ion filter to filter the water in the washing tub so that the impurity ions in the water can be effectively collected by the ion filter. Therefore, the washing device closes the water inlet 2 of the ion filter by closing the turbine or the water inlet valve, so that during the drainage process of the ion filter, the ion filter drains less water, thereby making the washing device more water-saving.

[0079] In this embodiment, the drain port 3 of the ion filter is connected to the drain port or drain pipe of the washing tub, so that the washing tub is drained while the ion filter is drained.

[0080] In this embodiment, the impurity ion concentration remains stable means that the impurity ion concentration is less than a set value and remains stable.

[0081] Therefore, by defining the impurity ion concentration in the control method to remain stable, it means that the impurity ion concentration is less than the set value and remains stable, so that the judgment of the impurity ion concentration is more consistent with the change of the impurity ion concentration in the ion filter.

[0082] In this embodiment, the specific process of the control method is: water is introduced into the washing device; a rinsing cycle is run; the ion filter is started to detect the impurity ion concentration inside the ion filter; it is determined whether the impurity ion concentration is greater than or equal to a set value, and if so, the rinsing cycle is terminated, otherwise it is determined whether the running time of the current rinsing cycle reaches a second preset running time;

[0083] If not, determine whether the duration of the impurity ion concentration remaining stable reaches the preset duration. If so, end the current rinsing cycle in advance and end the rinsing stage. Otherwise, return to determine whether the impurity ion concentration is greater than or equal to the set value and continue to determine.

[0084] If so, determine whether the duration for which the impurity ion concentration remains stable reaches the preset duration. If so, end the current rinse cycle and the rinse stage. Otherwise, extend the running time of the current rinse cycle, return to the running rinse cycle, and perform subsequent judgments.

[0085] In the above process, the early end of the rinsing cycle is to interrupt the preset rinsing program of the washing equipment and drain the washing tub; the end of the rinsing cycle is to perform the end stage of the preset rinsing program of the washing equipment.

[0086] In the above process, if the impurity ion concentration in the ion filter is less than the set value, and the impurity ion concentration remains stable for a preset period of time without rising during the period, it is judged that the clothes have been washed clean, and there are no stains on the clothes for water to dissolve if they are washed again. At this time, the washing can be terminated early to save water and electricity.

[0087] Specifically, the preset duration may be 1 minute, and the duration of the rinsing cycle may be 10 minutes.

[0088] In this embodiment, according to the concentration of impurity ions inside the ion filter, a judgment is made as to whether to end the current rinse cycle early, extend the running time of the rinse stage, and run at least one rinse cycle again, and control when to end the rinse stage, thereby achieving accurate termination of the rinse stage and extension of the washing stage, making the washing equipment energy-saving and environmentally friendly; according to the concentration of impurity ions inside the ion filter, the ion filter is controlled to discharge the impurity ions enriched in the water, so that the ion filter can continuously filter the impurity ions, reduce the concentration of impurity ions in the washing tub, and thereby make the water more capable of dissolving stains.

[0089] Embodiment 2

[0090] like Figure 3 As shown, this embodiment provides a control method for a washing device. The difference between this embodiment and embodiment 1 is that: based on judging whether the remaining time of the rinse cycle is greater than the set duration, a pre-judgment is made to terminate the rinse cycle early, or a pre-judgment is made to extend the running time of the rinse cycle.

[0091] In this embodiment, Figure 3 As shown, the specific process of the control method is: water is introduced into the washing device; a rinsing cycle is run; the ion filter is started to detect the impurity ion concentration inside the ion filter; it is determined whether the impurity ion concentration is greater than or equal to a set value, if so, the rinsing cycle is terminated, otherwise it is determined whether the remaining time of the rinsing cycle is greater than the set duration;

[0092] If the remaining time of the rinse cycle is greater than the set time, that is, it is determined whether the duration of the impurity ion concentration remaining stable reaches the preset time. If so, the rinse cycle is terminated in advance and the rinse stage is terminated. Otherwise, it returns to determine whether the impurity ion concentration is greater than or equal to the set value and continues to determine.

[0093] If the remaining time of the rinse cycle is less than or equal to the set duration, determine whether the duration for which the impurity ion concentration remains stable reaches the preset duration. If so, end the current rinse cycle and the rinse stage. Otherwise, extend the running time of the current rinse cycle, return to the running rinse cycle, and perform subsequent judgments.

[0094] In this embodiment, by judging whether the remaining time of the rinse cycle is greater than the set duration, a pre-judgment is performed to end the rinse cycle early, or a pre-judgment is performed to extend the running time of the rinse cycle, so that the judgment process of the present application is simpler and the implementation cost is lower.

[0095] Embodiment 3

[0096] like Figure 4 As shown, this embodiment provides a control method for a washing machine. The difference between this embodiment and the first and second embodiments is that when the conditions in the judgment are met, the judgment result is selected for execution according to the priority of the judgment.

[0097] In this embodiment, Figure 4 As shown, the specific process of the control method is: water is introduced into the washing device; a rinse cycle is run; the ion filter is started to detect the concentration of impurity ions inside the ion filter; when the conditions in the judgment are met, the judgment result is selected for execution according to the priority of the judgment.

[0098] When the conditions in the judgment are met, the judgment result is selected for execution according to the priority of the judgment, specifically: the priority of the judgment is from high to low: the impurity ion concentration is greater than or equal to the set value, the pre-judgment of ending the current rinsing cycle in advance, and the pre-judgment of extending the running time of the current rinsing cycle. The corresponding judgment results are: ending the current rinsing cycle, ending the current rinsing cycle in advance and ending the rinsing stage, and extending the running time of the current rinsing cycle. Therefore, when the judgment condition with a high priority is met, the judgment result is executed first, that is, the corresponding action is executed; only when the judgment condition with a high priority is not met, the judgment and judgment result with a low priority will be executed.

[0099] Specifically, the pre-judgment for ending the rinse cycle early is that the duration for which the impurity ion concentration remains stable reaches a preset duration, and the pre-judgment for extending the running time of the rinse cycle is the end time of the rinse cycle, and the duration for which the impurity ion concentration remains stable does not reach the preset duration.

[0100] Therefore, this embodiment sets the priority of judgment so that the judgment results will not be executed simultaneously, making it easier to add the control method of this embodiment to the existing rinsing program without conflicting with the existing rinsing program and causing program errors.

[0101] Embodiment 4

[0102] like Figure 5 As shown, this embodiment provides a washing device, and the washing device executes the control method of the washing device as described in embodiments one to three.

[0103] In this embodiment, the ion filter includes a water inlet 2 and a drain outlet 3, and a cavity connecting the water inlet 2 and the drain outlet 3 is formed inside the ion filter. A reverse osmosis membrane 4 is set on the side wall of the cavity, and the reverse osmosis membrane 4 is used to allow the water inside the cavity to enter the washing tub.

[0104] The water inlet 2 and the drain outlet 3 are arranged through the ion filter to realize water inlet and drain of the ion filter, and the reverse osmosis membrane 4 is arranged through the side wall to realize the filtration of impurity ions and enrich them inside the cavity of the ion filter, so that the impurity ion concentration inside the ion filter detected can more accurately reflect the impurity ion concentration inside the washing tub, and make the water in the washing tub more capable of dissolving stains.

[0105] In this embodiment, an ion detection device 1 is provided inside the ion filter for detecting the concentration of a specific type of ions. In a specific application of this embodiment, the ion detection device 1 is an ion sensor.

[0106] Specifically, Figure 5 As shown, in a specific application of this embodiment, the water inlet 2 of the ion filter is provided with a water inlet valve, and the water inlet 2 of the ion filter is provided with a water outlet 3 and a water drain valve.

[0107] In another specific application of this embodiment, turbines are respectively provided at the water inlet 2 and the water outlet 3. The turbine or the water inlet valve guides the water in the washing tub to the ion filter to filter the water in the washing tub so that the impurity ions in the water can be effectively collected by the ion filter.

[0108] Therefore, the washing device closes the water inlet 2 of the ion filter by closing the turbine or the water inlet valve, so that during the drainage process of the ion filter, the ion filter drains less water, thereby making the washing device more water-saving.

[0109] In this embodiment, the reverse osmosis membrane 4 includes an ester unidirectional membrane, a sodium ion unidirectional membrane, and the like.

[0110] Therefore, the reverse osmosis membrane 4 of the ion filter is used to filter out impurity ions including esters, alcohols, calcium ions, sodium ions, etc., so that the detected impurity ion concentration inside the ion filter can more accurately reflect the impurity ion concentration inside the washing tub and make the water in the washing tub more capable of dissolving stains.

[0111] In this embodiment, the drain port 3 of the ion filter is connected to the drain port or drain pipe of the washing tub, so that the washing tub is drained while the ion filter is drained.

[0112] In a specific application of this embodiment, the ion filter is arranged at the position of the lint filter of the washing tub. Specifically, the washing tub comprises an inner tub and an outer tub, and the ion filter is arranged on the wall of the inner tub or the outer tub.

[0113] In another specific application of this embodiment, the ion filter is disposed inside a lint filter of the washing tub.

[0114] In this embodiment, the impurity ions are filtered through the reverse osmosis membrane of the ion filter, so that the detected impurity ion concentration inside the ion filter can more accurately reflect the impurity ion concentration inside the washing tub, reduce the impurity ion concentration in the washing tub, and make the water in the washing tub more capable of dissolving stains.

[0115] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A control method for a washing device, characterized in that: The washing device comprises a washing bucket and an ion filter; The control method comprises: During the rinsing process, the water in the washing tub circulates through the ion filter, the impurity ions in the water are collected by the ion filter, and the water with the impurity ions removed returns to the washing tub; Detecting the concentration of impurity ions inside the ion filter; If the detected impurity ion concentration remains stable for a preset period of time, the rinsing phase of this washing program ends.

2. A control method for a washing device according to claim 1, characterized in that: The rinsing phase has a first preset running time; When the running time of the rinsing stage reaches the first preset running time, if the duration for which the impurity ion concentration remains stable is less than the preset time, the running time of this rinsing stage is extended.

3. A control method for a washing device according to claim 2, characterized in that: The rinsing stage includes at least one rinsing cycle, and the rinsing cycle has a second preset running time; When the running time of the current rinsing cycle reaches the second preset running time, if the duration for which the impurity ion concentration remains stable is less than the preset time, the running time of the current rinsing cycle is extended.

4. A control method for a washing device according to claim 1, characterized in that: The rinsing stage includes at least two rinsing cycles; In any rinsing cycle, if the detected impurity ion concentration remains stable for a duration that reaches a preset time, the current rinsing cycle is terminated and subsequent rinsing cycles are no longer run.

5. A control method for a washing device according to claim 1, characterized in that: Also includes, The rinsing stage includes at least one rinsing cycle; In any rinsing cycle, if the washing device determines that the impurity ion concentration inside the ion filter is greater than or equal to a set value, the current rinsing cycle is terminated and at least one rinsing cycle is run again.

6. A control method for a washing device according to claim 5, characterized in that: The end of the current rinsing cycle includes draining water from the ion filter; Before running the rinse cycle again, water is added to the washing tub.

7. A control method for a washing device according to claim 6, characterized in that: The water inlet of the ion filter is connected to the washing tub; During the drainage process of the ion filter, the water inlet is controlled to be closed.

8. A control method for a washing device according to any one of claims 1 to 7, characterized in that: The impurity ion concentration remaining stable means that the impurity ion concentration is less than a set value and remains stable.

9. A washing device, characterized in that: The washing device executes the washing device control method according to any one of claims 1 to 8.

10. A washing device according to claim 9, characterized in that: The ion filter includes a water inlet and a drain outlet, a cavity connecting the water inlet and the drain outlet is formed inside the ion filter, a reverse osmosis membrane is arranged on the side wall of the cavity, water inside the cavity passes through the reverse osmosis membrane into the washing tub, and the reverse osmosis membrane is used to block impurity ions in the water from passing through.

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