Filtration module, control method for filtration module, and cleaning equipment

Abstract

The present invention relates to the technical field of cleaning equipment and discloses a filtration module, a control method for the filtration module, and a cleaning equipment. The filtration module includes a filtering device provided with a contaminated outlet for discharging wastewater containing filtered particles, and a collection device connected to the contaminated outlet of the filtering device and provided with at least two lint collecting assemblies. Each lint collecting assembly receives the wastewater discharged from the filtering device independently and / or together and collects the filtered particles in the wastewater. In the present invention, the collection device is provided with at least two lint collecting assemblies. By collecting filtered particles using at least two lint collecting assemblies, the total amount of filtered particles that can be collected can be increased, thereby extending the service life of the collection device after each cleaning. Furthermore, each lint collecting assembly can be cleaned separately, making it easier to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of cleaning equipment, and specifically relates to a filtration module, a control method for the filtration module, and a cleaning device.

Background Art

[0002] For example, in the process of washing clothes with a clothes washing cleaning device such as a washing machine, since there is friction between clothes and between clothes and the washing machine itself, lint falls off from the clothes and mixes into the washing water. If the lint in the washing water cannot be removed, it is likely to adhere to the surface of the clothes after the washing is completed and affect the washing effect of the clothes. Therefore, a conventional washing machine is equipped with a filter for filtering lint, and by continuously passing the washing water through the filter during the washing process, the lint is removed from the washing water.

[0003] However, the filtered foreign matters such as lint after filtration continue to accumulate in the filter, and after a long period, there is a problem that the filter becomes clogged and the filtering function cannot be realized. In general, since the filter is installed inside the washing machine, the user cannot directly observe the accumulation status of the filtered foreign matters and has no choice but to clean it regularly. However, if the amount of lint falling off from the clothes washed by the user within a certain period is large, or if the user forgets to clean the filter for a long time, the filter may become clogged. In this case, when the user uses the washing machine to wash clothes, since the filter cannot realize the filtering function, the washing effect of the clothes is affected. In addition, if the washing machine cannot judge the clogging of the filter and forcibly draws the washing water into the filter, since the filter cannot drain the water, the water pressure in the water channel structure of the washing machine increases, and in severe cases, the water channel structure may be damaged.

[0004] Meanwhile, in recent years, the concept of microplastics has been introduced in the field of environmental conservation and is gradually attracting more attention. Research has shown that a major source of microplastics is wastewater discharged from household washing machines. This is because, with the spread of synthetic fabrics, fibers from clothing that fall off during the washing process are discharged with the wastewater from the washing machine, becoming microplastics that contaminate the natural water environment. Microplastics enter the ecosystem cycle directly with the wastewater, and through the food chain in nature, they can eventually accumulate in the human body and potentially affect human health. Therefore, some regions have established relevant standards for the amount of microplastics in wastewater from washing machines. However, when washing machines are operated in situations where filters cannot be used, lint from clothing may be discharged directly with the wastewater from the washing machine. As a result, a large amount of microplastics may be present in the wastewater from washing machines, leading to the problem of not being able to meet discharge standards.

[0005] In view of the above, the present invention is proposed. [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] The technical problem that this invention aims to solve is to provide a filtration module, a control method for the filtration module, and a cleaning device in order to eliminate the defects of the prior art. [Means for solving the problem]

[0007] To solve the above technical problems, the first object of the present invention is to provide a filtration module with a long service cycle and easy cleaning operation, and a cleaning device equipped with the filtration module. Specifically, the following technical means are used.

[0008] The filtration module includes a filtration device provided with a contaminated outlet for discharging wastewater containing filtered foreign matter, and a recovery device communicating with the contaminated outlet of the filtration device and provided with at least two sets of lint collection assemblies.

[0009] Each lint collection assembly receives wastewater discharged from the filtration device independently and / or together, and collects filtered foreign matter in the wastewater.

[0010] Furthermore, each lint collection assembly has a collection chamber for collecting filtered foreign matter, and each collection chamber communicates with the contaminated outlet of the filtration device.

[0011] Furthermore, it also includes a contaminated discharge pipeline. The contaminated discharge pipeline has an inlet connected to the contaminated outlet of a filtration device, and its outlet communicates with one of the collection chambers. The inlet and outlet ends of the contaminated discharge pipeline communicate with a branch contaminated discharge pipeline, and the outlet end of the branch contaminated discharge pipeline communicates with other collection chambers.

[0012] Furthermore, the aforementioned polluted discharge channel is equipped with a channel control valve for controlling the opening and closing of the polluted discharge channel.

[0013] Furthermore, a pressure detection member is provided between the inlet end of the polluted discharge channel and the channel control valve to detect the water pressure inside the polluted discharge channel.

[0014] Furthermore, the initial state of the branch control valve is closed, and a decision is made whether or not to open the branch control valve based on the water pressure detected by the pressure detection member.

[0015] Furthermore, the aforementioned polluted discharge pipeline is equipped with a polluted discharge control valve for controlling the opening and closing of the polluted discharge pipeline.

[0016] Furthermore, the pollution discharge control valve is installed between the drainage end of the pollution discharge pipeline and the inlet end of the pollution discharge branch.

[0017] Furthermore, the collection device includes a housing. Inside the housing is a main storage chamber, and the lint collection assembly is installed in the main storage chamber.

[0018] Wastewater containing filtered foreign matter enters the collection chamber of the lint collection assembly, is filtered by the lint collection assembly, and then flows into the main containment chamber outside the collection chamber, where the filtered foreign matter is collected.

[0019] The cleaning equipment includes a water storage tank and further includes the filtration module. The filtration device of the filtration module is in communication with the water storage tank.

[0020] A second object of the present invention is to provide a filtration module capable of automatically releasing pressure in the event of clogging, and a cleaning device equipped with the filtration module. Specifically, the following technical means are used.

[0021] The filtration module includes a filtration device equipped with a contaminated outlet for discharging wastewater containing filtered foreign matter; a recovery device communicating with the contaminated outlet of the filtration device and receiving the wastewater discharged from the filtration device; and a pressure relief device provided between the contaminated outlet of the filtration device and the recovery device, used to release pressure when the wastewater entering the recovery device becomes clogged.

[0022] Furthermore, the pressure relief device includes a pressure relief channel and a pressure relief valve provided in the pressure relief channel. The water inlet end of the pressure relief channel is connected between the contaminated outlet of the filtration device and the recovery device. When the pressure relief valve is opened, the pressure relief channel opens, allowing wastewater discharged from the filtration device to enter the pressure relief channel, thereby achieving pressure relief.

[0023] Furthermore, the pressure relief valve includes a valve body provided with a water inlet and a water outlet, a valve plug provided within the valve body so as to be reciprocally movable, and a position return member that applies a position return force to the valve plug, thereby causing the valve plug to maintain closure of the water inlet.

[0024] When the water pressure in the pressure relief branch reaches a preset value, the valve plug moves under the action of the water pressure to open the water inlet. When the water pressure in the pressure relief branch decreases, the valve plug returns to its original position under the action of the position return member to close the water inlet.

[0025] Furthermore, the valve body has a certain extended length along the reciprocating movement direction of the valve plug. The water inlet is provided at one end of the valve body, and the water outlet is provided in a region near the end where the water inlet exists on the side wall of the valve body.

[0026] Furthermore, a pressure detection member for detecting the water pressure in the pressure relief branch is provided between the water inlet end of the pressure relief branch and the pressure relief valve.

[0027] Furthermore, it also includes a pollution discharge pipeline. The water inlet end of the pollution discharge pipeline is connected to the pollution discharge outlet of the filtration device, and the drainage end communicates with the recovery device. The water inlet end of the pressure relief branch communicates with the pollution discharge pipeline. A pollution discharge control valve for controlling the opening and closing of the pollution discharge pipeline is provided in the pollution discharge pipeline.

[0028] Furthermore, the pollution discharge control valve is provided between the drainage end of the pollution discharge pipeline and the water inlet end of the pressure relief branch.

[0029] Furthermore, the recovery device includes a housing having a recovery chamber inside, and a yarn waste collection assembly provided in the recovery chamber and surrounding a collection chamber for receiving sewage. Sewage containing filtered foreign matter enters the collection chamber, is filtered by the yarn waste collection assembly, and then flows into the recovery chamber outside the collection chamber. The filtered foreign matter is collected in the collection chamber.

[0030] The pressure relief device relieves pressure when the yarn waste collection assembly is clogged with filtered foreign matter.

[0031] Furthermore, the pressure relief device includes a pressure relief branch. The water inlet end of the pressure relief branch is connected between the pollution discharge outlet of the filtration device and the recovery device.

[0032] The drain end of the pressure relief channel communicates with the outside space. Alternatively, the drain end of the pressure relief channel communicates with the recovery chamber outside the collection room.

[0033] The cleaning equipment includes a water storage tank and further includes the filtration module. The filtration device of the filtration module is in communication with the water storage tank.

[0034] A third object of the present invention is to provide a filtration module capable of autonomously detecting blockage conditions, a control method thereof, and a cleaning device equipped with the filtration module. Specifically, the following technical means are used.

[0035] The filtration module includes a filtration device equipped with a contaminated outlet for discharging wastewater containing filtered foreign matter, a recovery device communicating with the contaminated outlet of the filtration device and receiving the wastewater discharged from the filtration device, and a clogging detection device for detecting whether or not a blockage has occurred during the process in which the filtration device discharges wastewater to the recovery device.

[0036] Furthermore, the blockage detection device includes a flow rate detection device for detecting the flow rate of wastewater discharged from the filtration device. Based on the flow rate of wastewater discharged from the filtration device, the blockage detection device determines whether or not a blockage has occurred during the process in which the filtration device discharges wastewater to the recovery device.

[0037] Furthermore, it also includes a contaminated discharge pipeline. The contaminated discharge port of the filtration device is connected to the inlet end of the contaminated discharge pipeline, and the discharge end of the contaminated discharge pipeline communicates with a recovery device. The flow rate detection device is installed in the contaminated discharge pipeline.

[0038] Furthermore, the blockage detection device includes a water level detection device for detecting water level information within the recovery device. Based on the water level information within the recovery device, the blockage detection device determines whether or not a blockage has occurred during the process in which the filtration device discharges wastewater into the recovery device.

[0039] Furthermore, the water level detection device includes multiple sets of water level probes installed at different height positions inside the recovery device. The water level probes come into contact with water and generate a feedback signal.

[0040] Furthermore, a set of water level probes includes two electrodes spaced apart. The two electrodes generate a feedback signal when they become conductive through water.

[0041] Furthermore, the water level detection device includes two electrode sheets extending vertically for a certain length. The two electrode sheets are positioned opposite each other at a certain distance apart. The capacitance value between the two electrode sheets changes depending on the area of ​​the electrode sheets submerged below the water surface.

[0042] Furthermore, the recovery device includes a housing having a recovery chamber inside, and a lint collection assembly provided inside the recovery chamber and surrounding a collection chamber that receives wastewater, wherein wastewater containing filtered foreign matter enters the collection chamber, is filtered by the lint collection assembly, and then flows into the recovery chamber outside the collection chamber, and the filtered foreign matter is collected inside the collection chamber.

[0043] The water level detection device is installed inside the collection chamber and detects water level information from outside the collection chamber.

[0044] The control method for the filtration module described above determines whether or not a blockage has occurred during the process in which the filtration device discharges wastewater to the recovery device, based on the detection result of the blockage detection device.

[0045] Furthermore, the blockage detection device includes a flow rate detection device for detecting the flow rate of wastewater discharged from the filtration device. When it is detected that the flow rate of wastewater discharged from the filtration device is less than a predetermined flow rate, it is determined that a blockage has occurred in the process of the filtration device discharging wastewater to the recovery device.

[0046] Alternatively, the blockage detection device includes a water level detection device for detecting water level information in the recovery device. If it is detected that the water level in the recovery device is higher than a predetermined water level, or if it is detected that the rate of change of the water level in the recovery device is smaller than a predetermined rate of change, it is determined that a blockage has occurred in the process of the filtration device discharging wastewater into the recovery device.

[0047] The cleaning equipment includes a water storage tank and further includes the filtration module. The filtration device of the filtration module is in communication with the water storage tank. [Effects of the Invention]

[0048] By using the above-described technical means, the present invention has the following beneficial effects compared to the prior art.

[0049] 1. The recovery device is equipped with at least two sets of lint collection assemblies. By collecting filtered debris with at least two sets of lint collection assemblies, the total amount of filtered debris that can be collected is increased, thus preventing situations where wastewater cannot enter the recovery device. This results in, firstly, a longer cleaning cycle for the recovery device. Secondly, it makes the device easier to use because the user can clean each lint collection assembly separately.

[0050] 2. The filtration module is equipped with a pressure relief device that can release pressure if clogging occurs during the process of wastewater entering the recovery device, causing an increase in water pressure between the filtration device and the recovery device. This prevents structural damage that may occur due to excessive water pressure and provides protection for the filtration module.

[0051] 3. When the user cannot directly observe the condition of the filtration module, a clogging detection device installed in the filtration module can independently detect whether a clogging has occurred during the process of the filtration device discharging wastewater to the recovery device. This allows the cleaning equipment to monitor the condition of the filtration module, thus avoiding the problem of the filtration module becoming clogged and unable to perform its filtration function.

[0052] The specific embodiments of the present invention will be described in more detail below, with reference to the drawings.

[0053] The drawings are used as part of the present invention and for a further understanding of the present invention. Furthermore, the schematic embodiments and descriptions of the present invention are used for interpretation of the present invention, but do not unduly limit it. Needless to say, the drawings described below are only a part of the embodiments, and those skilled in the art can obtain further drawings from these drawings without requiring any creative work. [Brief explanation of the drawing]

[0054] [Figure 1] Figure 1 is a schematic diagram of the cleaning equipment in an embodiment of the present invention. [Figure 2] Figure 2 is a schematic diagram of the filtration module and related water channels in Examples 1 to 3 of the present invention. [Figure 3] Figure 3 is a flowchart of the control method for the cleaning equipment in Embodiment 2 of the present invention. [Figure 4] Figure 4 is a flowchart of the control method for the cleaning equipment in Embodiment 3 of the present invention. [Figure 5] Figure 5 is a schematic diagram of the filtration module and related water channels in Embodiment 4 of the present invention. [Figure 6] Figure 6 is a schematic diagram of the filtration module and related water channels in Embodiment 6 of the present invention. [Figure 7] Figure 7 is a schematic diagram of the pressure relief valve in Embodiment 6 of the present invention (closed state). [Figure 8] Figure 8 is a schematic diagram of the pressure relief valve in the open state in Embodiment 6 of the present invention. [Figure 9] Figure 9 is a schematic diagram of the filtration module and associated water channels in Embodiment 7 of the present invention. [Figure 10] Figure 10 is a flowchart of the control method for the cleaning equipment in Embodiment 8 of the present invention. [Figure 11]Figure 11 is a schematic diagram of the filtration module and associated water channels in Embodiment 9 of the present invention. [Figure 12] Figure 12 is a schematic diagram of the filtration module and related water channels in Embodiment 10 of the present invention. [Figure 13] Figure 13 is a schematic diagram of the water level detection device in the recovery device in Embodiment 10 of the present invention. [Figure 14] Figure 14 is another schematic diagram of the water level detection device in the recovery device in Embodiment 10 of the present invention. [Figure 15] Figure 15 is a schematic diagram of the filtration module and related water channels in Embodiment 11 of the present invention. [Figure 16] Figure 16 is a flowchart of the control method for the cleaning equipment in Embodiment 12 of the present invention. [Modes for carrying out the invention]

[0055] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to explain the concept of the present invention to those skilled in the art by referring to specific embodiments.

[0056] To clarify the purpose, technical means, and advantages of the embodiments of the present invention, the technical means of the embodiments will be described clearly and concisely below, with reference to the drawings of the embodiments. The following embodiments are for illustrative purposes only and do not limit the scope of the present invention.

[0057] In the description of this invention, directions or positional relationships indicated by terms such as "up," "down," "front," "back," "left," "right," "vertical," "inside," and "outside" are directions or positional relationships based on the illustrations and are merely for the convenience and simplification of the description of this invention. They do not explicitly or implicitly suggest that the device or component in question has a specific direction or must be configured and operated in a specific direction. Therefore, they should not be interpreted as limiting the present invention.

[0058] In describing this invention, unless otherwise explicitly defined and limited, the terms “attach,” “connect,” and “connect” should be interpreted broadly. For example, they may be fixed connections, removable connections, or integral connections. They may also be mechanical or electrical connections. Furthermore, they may be direct connections or indirect connections via an intermediate medium. Those skilled in the art will be able to interpret the specific meanings of these terms in this invention according to the specific circumstances. [Examples]

[0059] This embodiment provides a filtration module and a cleaning device including the filtration module. The cleaning device can be a washing machine, a washer-dryer, a care machine, or other cleaning device having a clothing cleaning function.

[0060] As shown in Figures 1 and 2, the cleaning equipment of this embodiment includes a water storage tank 100. The filtration module communicates with the water storage tank 100 and is capable of receiving and filtering the water in the water storage tank 100. Specifically, the filtration module includes a filtration device 600 and a recovery device 500.

[0061] The filtration device 600 is connected to the water storage tank 100. A circulation pump 400 is also provided between the filtration device 600 and the water storage tank 100. The water in the water storage tank 100 is drawn into the filtration device 600 and filtered by the action of the circulation pump 400. The filtration device 600 has a self-cleaning function, so the user does not need to remove the filtration device 600 and clean it manually. The filtration device 600 can perform self-cleaning and discharge the filtered foreign matter accumulated during the filtration process along with the water flow. Specifically, the filtration device 600 is provided with a contaminated outlet 6103, and the wastewater containing filtered foreign matter after self-cleaning can be discharged from the contaminated outlet 6103. This prevents a situation in which a large amount of filtered foreign matter accumulates inside the filtration device 600 and affects the filtration efficiency.

[0062] The recovery device 500 is connected to the contaminated outlet 6103 of the filtration device 600, allowing it to receive wastewater discharged from the filtration device 600. This prevents the wastewater discharged from the filtration device 600 from directly joining the wastewater flow of the cleaning equipment and being discharged to the outside, thus preventing the problem of microplastics in the filtered wastewater entering the ecosystem cycle along with the wastewater flow.

[0063] In this embodiment, at least two sets of lint collection assemblies 570 are provided inside the recovery device 500. Each lint collection assembly 570 independently receives wastewater discharged from the filtration device and collects filtered foreign matter in the wastewater. Each lint collection assembly 570 has a collection chamber for collecting filtered foreign matter. Each collection chamber communicates with the contaminated outlet 6103 of the filtration device 600.

[0064] Specifically, the recovery device 500 in this embodiment is provided with a first lint collection assembly 571 and at least one second lint collection assembly 572. The first lint collection assembly 571 and the second lint collection assembly 572 independently receive wastewater discharged from the filtration device 600 and collect filtered foreign matter in the wastewater.

[0065] Furthermore, the first lint collection assembly 571 has a first collection chamber for collecting filtered foreign matter, and the second lint collection assembly 572 has a second collection chamber independent of the first collection chamber. The first and second collection chambers are in communication with the contaminated outlet 6103 of the filtration device 600, respectively. The fact that the second collection chamber is independent of the first collection chamber means that if wastewater discharged from the filtration device 600 does not enter the first collection chamber, it enters the second collection chamber directly.

[0066] In the above solution, the recovery device 500 can accept wastewater discharged from the filtration device 600 by preferentially using the first lint collection assembly 571. However, if the first lint collection assembly 571 becomes full and can no longer continue to receive wastewater, the wastewater may continue to be accepted using one or more second lint collection assemblies 572. This avoids a situation in which the wastewater discharge process of the filtration device 600 is forcibly stopped.

[0067] In this embodiment, the recovery device 500 further includes a housing 510. Inside the housing 510 is a main storage chamber 533, and both the first lint collection assembly 571 and the second lint collection assembly 572 are provided in the main storage chamber 533. The first lint collection assembly 571 and the second lint collection assembly 572 are each capable of providing a filtering effect on wastewater.

[0068] Specifically, when wastewater containing filtered foreign matter enters the first collection chamber of the first lint collection assembly 571, it is filtered by the first lint collection assembly 571 and becomes available for flow into the main containment chamber 533 outside the first collection chamber. As a result, the filtered foreign matter is collected inside the first collection chamber. Furthermore, when wastewater containing filtered foreign matter enters the second collection chamber of the second lint collection assembly 572, it is filtered by the second lint collection assembly 572 and becomes available for flow into the main containment chamber 533 outside the second collection chamber. As a result, the filtered foreign matter is collected inside the second collection chamber.

[0069] Figure 2 shows a plan view of the recovery device 500 when one second yarn waste collection assembly 572 is provided. The first yarn waste collection assembly 571 and the second yarn waste collection assembly 572 are provided so as to be horizontally distributed in the housing 510. Therefore, water filtered by either the first yarn waste collection assembly 571 or the second yarn waste collection assembly 572 does not fall into the other.

[0070] In detail, the housing 510 of the recovery device 500 is provided with a first inlet 511 and a second inlet 512. Both the first inlet 511 and the second inlet 512 are located on the right end face of the housing 510 and communicate with the contaminated outlet 6103 of the filtration device 600 through a pipeline. The first lint collection assembly 571 includes a filter mesh mechanism surrounding the first collection chamber. The filter mesh mechanism is located near the right end face of the housing 510 and communicates with the first inlet 511. The structure of the second lint collection assembly 572 is similar to that of the first lint collection assembly 571 and also includes a filter mesh mechanism. This filter mesh mechanism surrounds the second collection chamber and is located near the right end face of the housing 510 and communicates with the second inlet 512.

[0071] The housing 510 is attached to the housing 10 of the cleaning equipment so as to be insertable and retractable. The upper side of the housing 510 is also open. The first lint collection assembly 571 and the second lint collection assembly 572 are mounted inside the housing 510 so as to be removable. Therefore, the user can remove them for cleaning, making the cleaning operation easier.

[0072] In the above solution, wastewater discharged from the filtration device 600 can be filtered within the recovery device 500. The final filtered foreign matter is collected inside the first lint collection assembly 571 or the second lint collection assembly 572, and the water without filtered foreign matter is collected in the main containment chamber 533 of the recovery device 500. By separating the filtered foreign matter from the wastewater using the first lint collection assembly 571 and the second lint collection assembly 572, the user can easily process the collected filtered foreign matter directly. This avoids a situation where filtered foreign matter becomes mixed into the water and cannot be effectively processed.

[0073] In a preferred solution of this embodiment, the housing 510 may be provided with a water outlet that communicates with the main storage chamber 533, allowing the water collected in the main storage chamber 533 of the recovery device 500 to be discharged from the water outlet. Since the water collected in the main storage chamber 533 is filtered water that does not contain filtered foreign matter, it may be drawn back into the water storage tank 100 for reuse. Alternatively, even if it is drawn directly into the external discharge pipe 250 of the washing equipment and discharged, the problem of fine lint contained in the filtered foreign matter entering the ecosystem cycle does not occur.

[0074] In a further solution of this embodiment, the filtration module further includes a contaminated discharge pipeline 240 to enable the discharge of wastewater from the filtration device 600 to the recovery device 500. The inlet end of the contaminated discharge pipeline 240 is connected to the contaminated outlet 6103 of the filtration device 600, and the outlet end is connected to the first inlet 511 and communicates with the first collection chamber inside the first lint collection assembly 571. The inlet and outlet ends of the contaminated discharge pipeline 240 communicate with a contaminated discharge branch 244. The outlet end of the contaminated discharge branch 244 is connected to the second inlet 512 and communicates with the second collection chamber inside the second lint collection assembly 572.

[0075] A channel control valve 246 is provided in the polluted discharge channel 244 to control the opening and closing of the polluted discharge channel 244. When the channel control valve 246 is closed, the polluted discharge channel 244 does not open, and the wastewater discharged from the filtration device 600 enters the first collection chamber along the polluted discharge pipeline 240. On the other hand, when the channel control valve 246 is opened, the polluted discharge channel 244 opens. As a result, the wastewater discharged from the filtration device 600 can bypass the first lint collection assembly 571 and enter the second collection chamber along the polluted discharge channel 244.

[0076] In this embodiment, the second lint collection assembly 572 is used as an auxiliary collection assembly. When the first lint collection assembly 571 becomes clogged with filtered foreign matter and can no longer filter wastewater, the branch control valve 246 is opened to allow wastewater discharged from the filtration device 600 to be guided to the second lint collection assembly 572.

[0077] Furthermore, the filtration module in this embodiment can monitor whether or not a blockage has occurred in the first lint collection assembly 571 and automatically control the opening of the branch control valve 246.

[0078] Specifically, a pressure detection member 245 is provided between the inlet end of the polluted discharge channel 244 and the channel control valve 246 to detect the water pressure inside the polluted discharge channel 244. The initial state of the channel control valve 246 is closed, and a decision is made whether or not to open the channel control valve 246 based on the water pressure detected by the pressure detection member 245.

[0079] In the initial state, since there is no blockage in the first lint collection assembly 571, the wastewater discharged from the filtration device 600 can smoothly enter the first collection chamber of the first lint collection assembly 571. At this time, there is almost no water in the polluted discharge branch 244. However, if a blockage occurs in the first lint collection assembly 571, the wastewater that enters will be unable to enter the main containment chamber 533 via the first lint collection assembly 571, and the first collection chamber will rapidly fill up.

[0080] When the first collection chamber is nearly full, wastewater can no longer enter the first collection chamber and flows into the polluted discharge channel 244. However, since the channel control valve 246 is closed, the water pressure in the polluted discharge channel 244 rises rapidly as the filtration device 600 continues to discharge wastewater to the outside. When the pressure detection member 245 detects that the water pressure has exceeded a predetermined pressure, the channel control valve 246 is controlled to open, allowing the wastewater to be discharged into the second collection chamber inside the second lint collection assembly 572.

[0081] In the above solution, by providing a pressure detection member 245 to detect the water pressure in the polluted discharge channel 244, it is possible to quickly detect if a blockage has occurred in the first lint collection assembly 571. Then, by automatically controlling the channel control valve 246 to open, it is ensured that the filtration device 600 can continue to discharge wastewater to the outside. By combining the pressure detection member 245 and the channel control valve 246, automatic control of whether or not to start using the second lint collection assembly 572 is realized, making the system even smarter.

[0082] In a further solution of this embodiment, the polluted discharge pipeline 240 is provided with a polluted discharge control valve 241 for controlling the opening and closing of the polluted discharge pipeline 240. Specifically, the polluted discharge control valve 241 is provided between the drainage end of the polluted discharge pipeline 240 and the inlet end of the polluted discharge branch pipeline 244.

[0083] When the water drawn in is filtered by the filtration device 600, the contaminated discharge control valve 241 is closed, and the branch control valve 246 is also closed. As a result, the contaminated discharge port 6103 of the filtration device 600 and the recovery device 500 are no longer in communication, so the filtration device 600 can only discharge the filtered water to the outside from the filtered water outlet 6102.

[0084] When the filtration device 600 is about to discharge wastewater to the outside, the pollutant discharge control valve 241 is opened. Alternatively, when the pressure detection member 245 detects that the water pressure has risen to a predetermined pressure, the branch control valve 246 is opened. This allows the filtration device 600 to discharge wastewater to the recovery device 500.

[0085] One point to explain is that since the pollution discharge control valve 241 is installed between the drain end of the pollution discharge pipeline 240 and the inlet end of the pollution discharge branch 244, the water pressure in the pollution discharge branch 244 may increase when the pollution discharge control valve 241 is closed. Therefore, in this embodiment, the pressure detection member 245 is operated only when the pollution discharge control valve 241 is open to detect the water pressure in the pollution discharge branch 244. This prevents the branch control valve 246 from being accidentally opened while the filtration device 600 is performing filtration.

[0086] In this embodiment, the recovery device 500 is equipped with a first lint collection assembly 571 and a second lint collection assembly 572. Therefore, even if the first lint collection assembly 571 becomes clogged, the second lint collection assembly 572 can receive and filter the wastewater discharged from the filtration device 600. Consequently, even if the first lint collection assembly 571 becomes clogged, the filtration module can continue to operate, and the filtration efficiency will not decrease due to the filtration device 600 being unable to discharge filtered foreign matter. Furthermore, by providing a pressure detection member 245 and a channel control valve 246 in the contaminated discharge channel 244, automatic control of whether or not to start using the second lint collection assembly 572 is realized, thus increasing the degree of automation applicable to cleaning equipment.

[0087] In a further solution of this embodiment, the filtration device 600 specifically includes a filtration chamber 610 having an inlet 6101, a filtered water outlet 6102, and a contaminated water outlet 6103, wherein the inlet 6101 is used to receive water drawn in in communication with the water storage tank 100, and the filtered water outlet 6102 is used to discharge filtered water; a filtration mechanism 620 rotatably provided inside the filtration chamber 610, the filtration mechanism 620 having a discharge joint 621 that is rotatably and tightly connected to the filtered water outlet 6102; and a drive mechanism 660 connected to the filtration mechanism 620 and used to rotate the filtration mechanism 620 within the filtration chamber 610.

[0088] The filtration mechanism 620 divides the inside of the filtration chamber 610 into an outer chamber and an inner chamber. The water inlet 6101 communicates with the outer chamber, and the filtered water outlet 6102 communicates with the inner chamber. Through the action of the circulation pump 400, water in the water storage tank 100 enters the outer chamber via the water inlet 6101, passes through the filtration mechanism 620, and enters the inner chamber, thereby achieving filtration. Filtered foreign matter contained in the water adheres to the outer wall of the filtration mechanism 620, and the water from which the filtered foreign matter has been removed flows out from the filtered water outlet 6102 via the discharge joint 621.

[0089] In detail, the filtration mechanism 620 includes a filter mesh holder and a filter mesh covering the filter mesh holder. One end of the filter mesh holder extends into the filtered water outlet 6102 to form a water discharge joint 621. The pore size of the filter mesh satisfies the requirement that the size of filtered foreign matter such as lint that can be removed by filtration is 17 μm ± 2 μm or larger in diameter and 500 μm ± 50 μm or larger in length.

[0090] To clean the foreign matter inside the filtration device 600, the drive mechanism 660 rotates the filtration mechanism 620, thereby agitating the water flow in the filtration chamber 610. This dislodges the foreign matter adhering to the outer wall of the filtration mechanism 620 through the combined action of centrifugal force and turbulent water flow, and mixes it into the water in the filtration chamber 610, allowing it to be discharged along with the water flow from the contaminated outlet 6103 of the filtration chamber 610.

[0091] Between the inner wall of the filtration chamber 610 and the outer wall of the filtration mechanism 620, cleaning particles 680 are provided to create friction and collisions with the water flow, thereby cleaning the inner wall of the filtration chamber 610 and the outer wall of the filtration mechanism 620. During the filtration process, the cleaning particles 680 constantly create friction with the inner wall of the filtration chamber 610 and the outer wall of the filtration mechanism 620 in conjunction with the flowing water, causing attached filtration foreign matter to be dislodged. This prevents the accumulation of filtration foreign matter, thus avoiding a situation where the filtration mechanism 620 is covered with filtration foreign matter too quickly, affecting the filtration efficiency. Furthermore, the problem of the filtration foreign matter becoming too thick after filtration is complete, causing it to adhere excessively firmly to the inner wall of the filtration chamber 610 or the outer wall of the filtration mechanism 620, making it difficult to remove the filtration foreign matter when cleaning the filtration device 600 later, is also avoided.

[0092] When the drive mechanism 660 rotates the filtration mechanism 620 within the filtration chamber 610 to achieve self-cleaning, the cleaning particles 680 move within the filtration chamber 610 due to the action of the turbulent water flow, generating friction against the inner wall of the filtration chamber 610 and the outer wall of the filtration mechanism 620. This improves the efficiency of removing filtered foreign matter, resulting in a better self-cleaning effect of the filtration device 600.

[0093] A shielding plate 690 is further provided inside the filtration chamber 610. The shielding plate 690 is also provided with water passage holes 691. The washing particles 680 are located on one side of the shielding plate 690 (i.e., the left side in Figure 2), while the filtered water outlet 6102 and the contaminated discharge port 6103 of the filtration chamber 610 are both located on the other side of the shielding plate 690 (i.e., the right side in Figure 2).

[0094] By providing the shield plate 690, it is possible to prevent the washing particles 680 from accumulating at the filtered water outlet 6102 during the filtration process. Furthermore, when the filtration device 600 performs self-cleaning and discharges wastewater, the wastewater, along with the filtered foreign matter, passes through the shield plate 690 via the water passage holes 691 and can be discharged from the contaminated outlet 6103. On the other hand, the washing particles 680 are obstructed by the shield plate 690 and are not discharged from the contaminated outlet 6103 along with the water flow. This prevents the loss of washing particles 680. Moreover, it is possible to prevent the washing particles 680 from accumulating at the contaminated outlet 6103 and clogging it, thereby affecting the efficiency of wastewater discharge.

[0095] The washing equipment of this embodiment specifically includes a circulating filtration pipeline whose water inlet and outlet ends communicate with the water storage tank 100, respectively. Both the filtration device 600 and the circulation pump 400 are installed in the circulating filtration pipeline. During the washing process of the washing equipment, the circulation pump 400 is activated to allow the water in the water storage tank 100 to flow along the circulating filtration pipeline, enter the filtration device 600 for filtration, and then return to the water storage tank 100.

[0096] More specifically, a water tank drain pipe 260 is connected to the bottom of the water tank 100. The water tank drain pipe 260 is connected to the inlet end of the circulation pump 400, and the outlet end of the circulation pump 400 is connected to the circulation pipeline 220. The circulation pipeline 220 is also connected to the inlet 6101 of the filtration device 600. The filtered water outlet 6102 of the filtration device 600 communicates with the water tank 100 through the circulation pipeline 230. Specifically, the drain end of the circulation pipeline 230 is connected to the window packing 110 at the opening of the water tank 100, and water is returned to the water tank 100 through the window packing 110.

[0097] In a further solution of this embodiment, a switching device 270 is provided between the filtered water outlet 6102 of the filtration device 600 and the circulating water pipeline 230. The water inlet of the switching device 270 communicates with the filtered water outlet 6102 of the filtration device 600. The switching device 270 has a first water outlet and a second water outlet. The first water outlet communicates with the circulating water pipeline 230, and the second water outlet communicates with an external discharge pipeline 250 that drains water to the outside of the cleaning equipment. Inside the switching device 270, a switching mechanism is provided to control the opening of the first water outlet and the second water outlet to the water inlet in an alternative manner. Since the wastewater flow from the cleaning equipment is filtered by the filtration device 600 before being discharged to the outside, it is guaranteed that the wastewater contains virtually no microplastics.

[0098] By providing the switching device 270, the washing machine can achieve two types of filtration functions—circulation filtration during the washing process and drainage filtration during the drainage process—by providing only one filtration device 600. Furthermore, since circulation filtration and drainage filtration share the same circulation pump 400 and some of the piping structure, the water channel control structure inside the washing machine is simplified. In addition, the control logic is simple because the function of circulation filtration and drainage filtration can be switched by controlling the opening direction of the switching device 270.

[0099] Preferably, a return water control valve 231 is provided outside the filtered water outlet 6102 of the filtration device 600 to control the opening and closing of the connection between the filtered water outlet 6102 and the switching device 270. When the filtration device 600 is performing filtration (including circulation filtration and wastewater filtration), the return water control valve 231 is in an open state. On the other hand, when controlling the filtration device 600 to discharge wastewater, the return water control valve 231 is closed, preventing the filtration device 600 from discharging wastewater from the filtered water outlet 6102. This ensures that the wastewater inside the filtration device 600 is sufficiently discharged from the contaminated outlet 6103.

[0100] In this embodiment, the washing equipment ensures the effectiveness of clothing cleaning by performing circulating filtration using the filtration device 600 during the washing process, thereby removing lint and other filtered foreign matter from the water. Furthermore, in the wastewater discharge stage, wastewater filtration is performed using the filtration device 600, so that the wastewater flow is filtered by the filtration device 600 before being discharged to the outside. This minimizes the amount of microplastics in the wastewater flow, thus avoiding the impact of laundry wastewater on the ecological environment. [Examples]

[0101] As shown in Figures 1 and 2, this embodiment provides a control method for the cleaning equipment described in Embodiment 1 above. This control method includes the cleaning equipment operating a cleaning program and executing an additional program to guide water to the filtration device 600 for filtration, and determining that the use of the second lint collection assembly 572 in the recovery device 500 has been started and transmitting warning information.

[0102] Specifically, the operation by which the cleaning equipment in this embodiment executes the additional program includes operating the circulation pump 400 to guide water to the filtration device 600 for filtration, and the filtration device 600 performing a contaminated discharge operation in which it discharges wastewater to the recovery device 500 according to a predetermined program.

[0103] Performing a pollution discharge operation according to a predetermined program means that after the filtration device 600 has continued filtration for a certain period of time, the pollution discharge control valve 241 is opened to discharge the wastewater to the recovery device 500.

[0104] In the solution of this embodiment, when the use of the second lint collection assembly 572 is started, it means that the first lint collection assembly 571 has become clogged and full of wastewater, and can no longer continue to receive wastewater discharged from the filtration device 600. In this case, it is possible to use the second lint collection assembly 572 to realize the wastewater receiving function and allow the cleaning equipment to complete the operation of the current cleaning program. However, if the user does not clean the recovery device 500 after the completion of the current cleaning program, there is a high possibility that the second lint collection assembly 572 will become clogged when the cleaning program is run again to execute the additional program that guides water to the filtration module, preventing the recovery device 500 from continuing to receive wastewater.

[0105] In this embodiment, the cleaning equipment monitors whether the second lint collection assembly 572 is in use during the process of running the cleaning program, and if the second lint collection assembly 572 is in use, it is possible to send a warning message to the user. This ensures that the cleaning equipment can complete the execution of the additional program when it runs the cleaning program next, by warning the user to clean the recovery device 500 after the completion of the current cleaning program.

[0106] Specifically, the control method for the cleaning equipment in this embodiment includes the following steps, as shown in Figure 3.

[0107] S11: The cleaning program starts.

[0108] S12: The additional program is executed, and water is supplied to the filtration device 600 for filtration.

[0109] S13: Determine whether the second lint collection assembly 572 has been put into use. If it has been put into use, send a warning message and perform step S14. If it has not been put into use, perform step S14 directly.

[0110] S14: Continue running the cleaning program.

[0111] Furthermore, in this embodiment, the open / closed state of the branch control valve 246 is controlled to determine whether or not to start using the second lint collection assembly 572. Whether or not to open the branch control valve 246 is determined based on the detection of water pressure by the pressure detection member 245.

[0112] In step S13 of the control method of this embodiment, if the contaminant discharge control valve 241 is in the open state and the water pressure detected by the pressure detection member 245 exceeds a predetermined pressure, the system controls the branch control valve 246 to open, and also determines that the use of the second lint collection assembly 572 has started, and transmits a warning message to alert the user to clean the recovery device 500 after the completion of the current cleaning program.

[0113] In detail, the cleaning equipment determines that the use of the second lint collection assembly 572 has begun after receiving a signal indicating that the water pressure exceeds a predetermined pressure. Alternatively, the cleaning equipment controls the branch control valve 246 to open after receiving a signal indicating that the water pressure exceeds a predetermined pressure, and determines that the use of the second lint collection assembly 572 has begun when it receives a signal indicating that the branch control valve 246 is in the open state.

[0114] In this embodiment, the cleaning equipment transmits a warning message to the user after the second lint collection assembly 572 is put into use. This achieves the objective of promptly informing the user of the current status of the recovery device 500 and reminding the user to clean the recovery device 500 after the completion of the cleaning program. In this way, it is possible to avoid the problem that, if the user forgets to clean the recovery device 500, the recovery device 500 will not be able to continue receiving wastewater discharged from the filtration device 600 during the operation of the cleaning program, and the additional program that realizes the filtration function will not be able to continue running. [Examples]

[0115] As shown in Figures 1 and 2, this embodiment provides a control method for the cleaning equipment described in Embodiment 1 above. This control method includes the cleaning equipment operating a cleaning program and executing an additional program that directs water to a filtration module for filtration, obtaining the current filtration capacity of the filtration module, and stopping the execution of the additional program when it is determined that the current filtration capacity of the filtration module is lower than a first filtration threshold.

[0116] Specifically, the operation by which the cleaning equipment in this embodiment executes the additional program includes operating the circulation pump 400 to guide water to the filtration device 600 for filtration, and the filtration device 600 performing a contaminated discharge operation in which it discharges wastewater to the recovery device 500 according to a predetermined program.

[0117] Performing a pollution discharge operation according to a predetermined program means that after the filtration device 600 has continued filtration for a certain period of time, the pollution discharge control valve 241 is opened to discharge the wastewater to the recovery device 500.

[0118] In this embodiment, the filtration capacity of the filtration module is specifically the excess filtration capacity of the recovery device 500, which can be determined by monitoring whether or not clogging has occurred in the first lint collection assembly 571 and / or the second lint collection assembly 572.

[0119] In this embodiment, the current filtration capacity of the filtration module being lower than the first filtration threshold corresponds to a situation where both the first lint collection assembly 571 and the second lint collection assembly 572 are clogged. In this case, the recovery device 500 is unable to accept the wastewater discharged from the filtration device 600. Therefore, since the filtered foreign matter accumulated in the filtration device 600 cannot be discharged, if the additional program is continued to run, the filtration device 600 will quickly become clogged as well.

[0120] Therefore, in this embodiment, if a blockage occurs in either the first lint collection assembly 571 or the second lint collection assembly 572, the execution of the additional program is stopped. In other words, water is not supplied to the filtration device 600.

[0121] Furthermore, before determining that the current filtration capacity of the filtration module is below the first filtration threshold, the system determines that the current filtration capacity of the filtration module is below the second filtration threshold and initiates the use of the second lint collection assembly 572. This allows the cleaning program to continue running and maintains the continuation of the additional program.

[0122] The current filtration capacity of the filtration module being lower than the second filtration threshold corresponds to a situation where the first lint collection assembly 571 is clogged and full of wastewater. In this case, wastewater cannot enter the first collection chamber of the first lint collection assembly 571. At this time, by opening the branch control valve 246 and starting the use of the second lint collection assembly 572, the recovery device 500 can continue to accept wastewater discharged from the filtration device 600, and the additional program can continue to run.

[0123] In a further solution of this embodiment, the cleaning program is continued after the execution of the additional program is stopped. That is, if the recovery device 500 determines that it is unable to accept the wastewater discharged from the filtration device 600, the filtration module is simply controlled to stop its operation, while the cleaning program continues to run until it is finished.

[0124] This prevents clogging of the filtration device 600 due to continued execution and allows the washing process to be completed without user intervention, thus increasing the degree of automation. In particular, it prevents the washing program from stopping due to clogging of the recovery device 500 when the user is not waiting by the washing machine, thus avoiding user dissatisfaction caused by the inability to complete the washing program.

[0125] Furthermore, stopping the execution of the additional program in this embodiment includes not starting the circulation pump 400 to perform circulation filtration during the subsequent operation of the cleaning program, but starting the circulation pump 400 only during the drainage stage to perform drainage filtration.

[0126] In the cleaning equipment of this embodiment, since the wastewater flow cannot be discharged without passing through the filtration device 600, wastewater filtration at the drainage stage is essential. Compared to the washing / rinsing stage, the operating time of the filtration device 600 is shorter at the drainage stage, so even if the filtration of the wastewater flow is completed without performing contaminated discharge, the problem of the filtration device 600 becoming completely clogged does not occur.

[0127] In this embodiment, the cleaning equipment can determine whether the first lint collection assembly 571 is clogged based on the water pressure detected by the pressure detection member 245, and control whether or not to open the branch control valve 246 to start using the second lint collection assembly 572. Similarly, by detecting the water pressure of the contaminated discharge branch 244 using the pressure detection member 245, it is also possible to determine whether or not the second lint collection assembly 572 is clogged.

[0128] Specifically, when the branch control valve 246 is closed, if the water pressure detected by the pressure detection member 245 exceeds a first predetermined pressure, it is determined that the first lint collection assembly 571 is clogged, and the branch control valve 246 is controlled to open, thereby allowing the second lint collection assembly 572 to receive the wastewater discharged from the filtration device 600.

[0129] The cleaning equipment continues the operation of the cleaning program and opens the branch control valve 246 each time the filtration device 600 performs a contaminant discharge operation. When the branch control valve 246 is open, if the water pressure detected by the pressure detection member 245 exceeds a second predetermined pressure, it is determined that the second lint collection assembly 572 is clogged, and the execution of the additional program is stopped.

[0130] In detail, the control method for the cleaning equipment includes the following steps, as shown in Figure 4.

[0131] S21: The cleaning program starts.

[0132] S22: The additional program is executed, and water is supplied to the filtration device 600 for filtration.

[0133] S23: If the water pressure detected by the pressure detection member 245 exceeds the first predetermined pressure, the branch control valve 246 is opened to start using the second lint collection assembly 572.

[0134] S24: The cleaning program continues to run, and the additional program continues to execute.

[0135] S25: If the water pressure detected by the pressure detection member 245 exceeds a second predetermined pressure, the execution of the additional program is stopped.

[0136] S26: Continue running the cleaning program.

[0137] In the above solution, stopping the execution of the additional program simply means not performing circulation filtration; however, wastewater filtration is still required during the wastewater discharge stage. Therefore, the second predetermined pressure value is smaller than the first predetermined pressure value.

[0138] If the water pressure detected by the pressure sensing member 245 exceeds the first predetermined pressure, the first lint collection assembly 571 is completely clogged and full of wastewater, and at this point, the use of the second lint collection assembly 572 is initiated. This ensures that the filtration capacity of the first lint collection assembly 571 is fully utilized.

[0139] Since the second predetermined pressure is smaller than the first predetermined pressure, if the water pressure detected by the pressure detection member 245 exceeds the second predetermined pressure, a blockage has occurred in the second lint collection assembly 572 at this point, but it is not completely filled with wastewater and still has some space to continue receiving wastewater. This allows a small amount of wastewater to be discharged to the recovery device 500 when wastewater filtration is performed in the subsequent washing program. This reduces the amount of filtration foreign matter accumulated in the filtration device 600, thus preventing clogging of the filtration device 600.

[0140] In this embodiment, when the first lint collection assembly 571 becomes full of wastewater during the process of the cleaning equipment operating the cleaning program, the second lint collection assembly 572 can be made available for use. Furthermore, if the second lint collection assembly 572 also becomes clogged, circulation filtration is not performed, but the cleaning program continues to operate, and wastewater filtration is performed at the drainage stage. This avoids the problem that the filtration device 600 may become clogged if it continues to operate when it is unable to discharge filtered foreign matter, and it also ensures that the cleaning program is completed without user intervention, thereby improving the degree of automation of the cleaning equipment. [Examples]

[0141] As shown in Figures 1 and 5, this embodiment differs from Embodiment 1 in that the first lint collection assembly 571 and the second lint collection assembly 572 in the recovery device 500 receive the wastewater discharged from the filtration device 600 together and collect filtered foreign matter in the wastewater.

[0142] Specifically, in this embodiment, the fact that the first lint collection assembly 571 and the second lint collection assembly 572 receive wastewater together means that, when the filtration device 600 discharges wastewater to the outside, the wastewater can enter the first lint collection assembly 571 and the second lint collection assembly 572 simultaneously. However, the second collection chamber of the second lint collection assembly 572 is still provided independently of the first collection chamber of the first lint collection assembly 571.

[0143] Furthermore, in this embodiment, a pollution discharge control valve 241 in the pollution discharge pipeline 240 is provided between the inlet end of the pollution discharge pipeline 240 and the inlet end of the pollution discharge branch 244. In addition, the pollution discharge branch 244 does not have a control valve structure for controlling opening and closing on its own. When the pollution discharge control valve 240 is opened, the first collection chamber of the first lint collection assembly 571 and the second collection chamber of the second lint collection assembly 572 simultaneously open to the pollution outlet of the filtration device 600, allowing wastewater discharged from the filtration device 600 to enter the first and second collection chambers simultaneously.

[0144] In this embodiment, there is no priority order when the first lint collection assembly 571 and the second lint collection assembly 572, provided in the recovery device 500, receive and filter the wastewater. When the contamination discharge control valve 241 is opened to discharge contamination from the filtration device 600, the contamination discharge pipeline 240 and the contamination discharge branch 244 open simultaneously, and the wastewater can flow simultaneously toward the first lint collection assembly 571 and the second lint collection assembly 572.

[0145] According to the above method, the wastewater discharged from the filtration device 600 is jointly received by the first lint collection assembly 571 and the second lint collection assembly 572, which is advantageous in extending the life cycle of the recovery device 500. Furthermore, since the usage frequency of the first lint collection assembly 571 and the second lint collection assembly 572 is the same, the situation where the first lint collection assembly 571 is used more frequently and requires more frequent maintenance does not occur. [Examples]

[0146] This embodiment further limits Embodiment 1 described above. Multiple second lint collection assemblies are provided. The first lint collection assembly receives wastewater discharged from the filtration device independently of the multiple second lint collection assemblies. The multiple second lint collection assemblies also receive wastewater discharged from the filtration device together.

[0147] Specifically, the contaminated outlet of the filtration device communicates with the first collection chamber of the first lint collection assembly through a contaminated discharge pipeline. A contaminated discharge control valve is also provided in the contaminated discharge pipeline. The contaminated discharge branch is connected to the contaminated discharge branch between the inlet end of the contaminated discharge pipeline and the contaminated discharge control valve. The contaminated discharge branch includes a main section connected to the contaminated discharge pipeline and several branch sections that each communicate with the main section. The several branch sections communicate with the second collection chambers of each of the multiple second lint collection assemblies in a one-to-one correspondence.

[0148] The branch control valve and pressure detection member are both installed in the main section of the polluted discharge branch. In the initial state, the branch control valve is closed, and the wastewater discharged from the filtration device flows toward the first lint collection assembly. However, if a blockage occurs in the first lint collection assembly, the wastewater enters the main section of the polluted discharge branch and increases the water pressure. When the water pressure detected by the pressure detection member exceeds a predetermined pressure, the branch control valve is controlled to open, allowing the wastewater discharged from the filtration device to flow from each branch section of the polluted discharge branch toward each second lint collection assembly.

[0149] In this embodiment, by providing multiple second lint collection assemblies, the total amount of filtered foreign matter that can be collected by the collection device is further increased. When a blockage occurs in the first lint collection assembly, multiple second lint collection assemblies can receive and filter the wastewater discharged from the filtration device almost simultaneously. In this case, firstly, the structure becomes simpler because there is no need to individually control the acceptance of wastewater by each second lint collection assembly. Secondly, since the usage frequency of each second lint collection assembly is the same, the degree of wear and tear during use is almost the same. Therefore, it is convenient for the user to maintain or replace the entire assembly after a certain period of use. [Examples]

[0150] As shown in Figures 1 and 6, this embodiment differs from embodiments 1 to 5 in that the filtration module further includes a pressure relief device. The pressure relief device is installed between the contaminated outlet 6103 of the filtration device 600 and the recovery device 500, and is used to release pressure when the wastewater entering the recovery device 500 becomes clogged.

[0151] Since the recovery device 500 accepts wastewater containing filtered foreign matter, this foreign matter can clog the recovery device 500, preventing wastewater discharged from the filtration device 600 from entering the recovery device 500. In particular, if the circulation pump 400 is operating at this time and continuously pumping water from the storage tank 100 towards the filtration device 600, drainage from the filtration device 600 to the recovery device 500 becomes impossible. This causes a significant increase in water pressure inside the filtration device 600 and between the filtration device 600 and the recovery device 500, potentially damaging the water channel structure in serious cases.

[0152] Therefore, by installing a pressure relief device, excess water pressure can be quickly released. This prevents structural damage that may occur due to excessive water pressure, thereby providing protection for the filtration module.

[0153] Specifically, the recovery device 500 in this embodiment includes a housing 510 having a recovery chamber inside, and a lint collection assembly 570 provided inside the recovery chamber. The lint collection assembly 570 surrounds a collection chamber that receives wastewater, dividing the recovery chamber into an inner collection chamber and an outer main containment chamber 533. Wastewater containing filtered foreign matter discharged from the filtration device 600 enters the collection chamber, is filtered by the lint collection assembly 570, and then flows into the outer main containment chamber 533. As a result, filtered foreign matter is collected in the collection chamber.

[0154] The housing 510 is mounted to the housing 10 of the cleaning equipment in an insertable / retractable manner. The upper side of the housing 510 is also open. The lint collection assembly 570 is mounted inside the housing 510 in a removable manner. Therefore, the user can remove it for cleaning, making the cleaning operation even easier.

[0155] In the above solution, wastewater discharged from the filtration device 600 can be filtered within the recovery device 500. The final filtered foreign matter is collected in the collection chamber of the lint collection assembly 570, and water without filtered foreign matter is collected in the main containment chamber 533 outside the lint collection assembly 570. By separating the filtered foreign matter from the wastewater with the lint collection assembly 570, the user can easily process the collected filtered foreign matter directly. This avoids a situation where filtered foreign matter becomes mixed into the water and cannot be effectively processed.

[0156] In this embodiment, the pressure relief device is mainly used to release pressure when the lint collection assembly 570 becomes clogged with filtered foreign matter. The lint collection assembly 570 primarily collects filtered foreign matter, and the water, which accounts for most of the wastewater volume, is stored in the main containment chamber 533 outside the lint collection assembly 570. Therefore, the internal volume of the lint collection assembly 570 is relatively small. If the lint collection assembly 570 becomes clogged with filtered foreign matter, the wastewater that subsequently enters cannot be filtered by the lint collection assembly 570 and flow into the main containment chamber 533. As a result, the collection chamber inside the lint collection assembly 570 quickly becomes full, preventing further wastewater from entering. In this case, it is necessary to release the pressure using the pressure relief device.

[0157] In the specific solution of this embodiment, the pressure relief device includes a pressure relief channel 247 and a pressure relief valve 590 provided in the pressure relief channel 247. The contaminated outlet 6103 of the filtration device 600 and the recovery device 500 are in communication via a contaminated discharge pipeline 240. The water inlet end of the pressure relief channel 247 is connected to the contaminated discharge pipeline 240 between the contaminated outlet 6103 of the filtration device 600 and the recovery device 500. When the pressure relief valve 590 is opened, the pressure relief channel 247 opens, allowing the wastewater discharged from the filtration device 600 to enter the pressure relief channel 247, thereby enabling pressure relief.

[0158] In the above solution, if it is necessary to release pressure, the pressure relief valve 590 is opened to open the pressure relief channel 247. This allows the wastewater in the contaminated discharge pipeline 240 to enter the pressure relief channel 247, enabling the wastewater in the filtration device 600 to be discharged along the pressure relief channel 247, thereby achieving the objective of reducing the water pressure in the contaminated discharge pipeline 240.

[0159] In a further solution of this embodiment, the drainage end of the pressure relief channel 247 communicates with the main containment chamber 533 outside the lint collection assembly 570. That is, the wastewater is still discharged to the recovery device 500, but it does not enter the collection chamber of the lint collection assembly 570, but is drawn directly into the main containment chamber 533 outside the lint collection assembly 570. This achieves the objective of releasing pressure and also avoids the problem of filtered foreign matter contained in the wastewater being released unintentionally.

[0160] In this embodiment, the pressure relief valve 590 is normally closed and can be automatically opened when the water pressure reaches a certain level, thus eliminating the need for separate control.

[0161] Specifically, as shown in Figures 7 and 8, the pressure relief valve 590 includes a valve body 591, a valve plug 592, and a return member 593. The valve body 591 is provided with a water inlet 5911 and a water outlet 5912. The valve plug 592 is provided within the valve body 591 so as to be reciprocating. The return member 593 is used to apply a return force to the valve plug 592, causing the valve plug 592 to maintain closure of the water inlet 5911.

[0162] When the water pressure in the pressure relief channel 247 reaches a preset value, the valve plug 592 moves due to the action of the water pressure and opens the water inlet 5911. Conversely, when the water pressure in the pressure relief channel 247 decreases, the valve plug 592 returns to its original position due to the action of the return member 593 and closes the water inlet 5911.

[0163] Furthermore, the valve body 591 has a constant extension length along the direction of reciprocating motion of the valve plug 592. The water inlet 5911 is provided at one end of the valve body 591 (i.e., the left end in Figure 7). The water outlet 5912 is provided in the region of the side wall of the valve body 591 closer to the end where the water inlet 5911 is located.

[0164] In detail, a valve seat 596 is provided at the right end of the valve body 591. A guide rod 597 extending to the left and right is connected to the valve plug 592. The guide rod 597 is slidably attached to the valve seat 596. The position return member 593 is a compression spring that covers the guide rod 597, with its left end in contact with the valve plug 592 and its right end in contact with the valve seat 596. A protruding position restricting portion 595 is provided on the inner wall of the valve body 591 at the water inlet 5911. The position restricting portion 595 surrounds the water inlet 5911, and the outer circumference of the left end face of the valve plug 592 contacts the position restricting portion 595 to close the water inlet 5911. A protruding portion 594 is formed in the central region of the left end face of the valve plug 592. The protruding portion 594 extends outward from the water inlet 5911.

[0165] If there is no water in the pressure relief channel 247, or if the water pressure is low, the position return member 593 seals the valve plug 592 into contact with the position restricting part 595 at the water inlet 5911, thereby closing the water inlet 5911. At this time, the pressure relief valve 590 remains closed, preventing the pressure relief channel 247 from opening.

[0166] On the other hand, if a blockage occurs as wastewater enters the recovery device 500, the water pressure in the contaminated discharge pipeline 240 increases, and the wastewater flows into the pressure relief channel 247. Since the valve plug 592 of the pressure relief valve 590 is in direct contact with the wastewater in the pressure relief channel 247, the water pressure acts on the protrusion 594 of the valve plug 592, generating pressure to the right. This causes the valve plug 592 to move to the right against the elastic force of the return member 593, opening the water inlet 5911 and thus opening the water inlet 5911 and the water outlet 5912. At this time, the pressure relief channel 247 opens, and wastewater can enter the recovery device 500 directly along the pressure relief channel 247.

[0167] After the pressure relief channel 247 opens, the internal water pressure drops rapidly. As the water pressure acting on the valve plug 592 decreases and becomes smaller than the elastic force applied by the return member 593, the elastic force of the return member 593 causes the valve plug 592 to move to the left and return to its original position, closing the water inlet 5911 again. As a result, the pressure relief valve 590 automatically returns to the closed state.

[0168] In a further solution of this embodiment, a pressure detection member 245 is provided between the water inlet end of the pressure relief channel 247 and the pressure relief valve 590 to detect the water pressure in the pressure relief channel 247. The pressure detection member 245 is connected to the control system of the cleaning equipment. The cleaning equipment can determine whether or not a blockage has occurred in the lint collection assembly 570 in the recovery device 500 by determining whether or not the pressure relief valve 590 has been opened at that time based on whether or not the water pressure detected by the pressure detection member 245 has reached a preset value.

[0169] In the above solution, the pressure relief valve 590 automatically opens or closes in response to changes in water pressure in the pressure relief passage 247, but it cannot directly provide feedback on its own open / closed state. Therefore, in order to detect the open / closed state of the pressure relief valve 590, a pressure detection member 245 is provided in the pressure relief passage 247 to detect the water pressure in the pressure relief passage 247, thereby determining whether the pressure relief valve 590 is open or closed at that time. This structure is simple and effectively allows for the acquisition of the open / closed state of the pressure relief valve 590.

[0170] In a further solution of this embodiment, the pollution discharge control valve 241 is specifically provided between the drainage end of the pollution discharge pipeline 240 and the inlet end of the pressure relief branch 247.

[0171] When the filtration device 600 filters the drawn-in water, the contamination discharge control valve 241 is closed, and the pressure relief valve 590 also remains closed. As a result, there is no communication between the contamination discharge port 6103 of the filtration device 600 and the recovery device 500, so the filtration device 600 can only discharge the drawn-in water after filtering it. On the other hand, when the filtration device 600 wants to discharge the wastewater to the outside, it opens the contamination discharge control valve 241. This allows the filtration device 600 to discharge the wastewater to the recovery device 500.

[0172] One point to explain is that the pollution discharge control valve 241 is installed between the drain end of the pollution discharge pipeline 240 and the inlet end of the pressure relief branch 247. Therefore, when the pollution discharge control valve 241 is closed, the water pressure in the pressure relief branch 247 may increase. In this embodiment, the pressure detection member 245 is operated only when the pollution discharge control valve 241 is open to detect the water pressure in the pressure relief branch 247. This prevents a misjudgment that a blockage has occurred in the lint collection assembly 570 due to the pollution discharge control valve 241 not being open when the filtration device 600 is performing filtration.

[0173] In this embodiment, a pressure relief channel 247 is connected to the contaminated discharge pipeline 240, and a pressure relief valve 590 is provided that can be automatically opened when the water pressure rises to a preset value. If a blockage occurs in the lint collection assembly 570 in the recovery device 500, the pressure relief valve 590 can be opened to open the pressure relief channel 247, allowing the wastewater discharged from the filtration device 600 to enter the recovery device 500 directly along the pressure relief channel 247. This enables an automatic pressure relief function when a blockage occurs in the lint collection assembly 570 and the water pressure in the contaminated discharge pipeline 240 becomes excessive, thereby avoiding structural damage that may occur due to excessive water pressure. [Examples]

[0174] As shown in Figures 1 and 9, this embodiment differs from Embodiment 6 in that the drain end of the pressure relief channel 247 does not communicate with the recovery device 500, but rather with the external space of the filtration module. Specifically, in this embodiment, the pressure relief channel 247 communicates with the external discharge pipeline 250 of the cleaning equipment. When pressure is released, the wastewater discharged from the pressure relief channel 247 enters the external discharge pipeline 250 directly and is discharged from the cleaning equipment.

[0175] In this embodiment, the pressure relief valve 590 automatically opens and closes according to the magnitude of the water pressure in the pressure relief channel 247. When the water pressure in the pressure relief channel 247 reaches a preset value, the pressure relief valve 590 opens and pressure relief is achieved. As a result, the water pressure in the pressure relief channel 247 rapidly decreases, and the pressure relief valve 590 closes again in a short time. In this process, filtered foreign matter is contained in the wastewater discharged from the pressure relief channel 247, but since the total amount of wastewater discharged is very small, the situation where the microplastic content in the wastewater from the cleaning equipment is too high to meet discharge standards does not occur.

[0176] Furthermore, the pressure detection member 245 provided in the pressure relief channel 247 can provide real-time feedback on the magnitude of the water pressure in the pressure relief channel 247. When the circulation pump 400 is operating and the filtration device 600 is performing contaminant discharge, if the water pressure detected by the pressure detection member 245 exceeds a preset value and then a decrease in water pressure is detected again, it means that the pressure relief valve 590 has opened due to the action of water pressure at that point. Therefore, the cleaning equipment controls the circulation pump 400 to stop operating and not to supply water to the filtration device 600.

[0177] In another solution of this embodiment, the pressure relief channel 247 may not discharge wastewater to the outside through the external discharge pipe 250, but may instead communicate directly with the outside of the cleaning equipment.

[0178] In this embodiment, the pressure relief is achieved by directly connecting the pressure relief channel 247 to the external discharge pipe 250 of the cleaning equipment, or by directly connecting the pressure relief channel 247 to the outside of the cleaning equipment, thereby discharging wastewater from the cleaning equipment. Since the pressure relief valve 590 opens and closes automatically due to the action of water pressure, the overall time of the pressure relief process is greatly shortened, and furthermore, the total amount of wastewater discharged to the outside to achieve pressure relief is reduced. In this way, the filtration module is protected by achieving pressure relief, and the situation in which the microplastic content in the wastewater from the cleaning equipment exceeds the standard does not occur. [Examples]

[0179] As shown in Figures 1, 6, and 9, this embodiment provides a control method for the cleaning equipment in the above embodiment 6 or 7. This control method includes the cleaning equipment operating a cleaning program and executing an additional program to guide water to the filtration device 600 for filtration, determining whether or not a blockage has occurred in the wastewater receiving area of ​​the recovery device 500, and if a blockage occurs, stopping the execution of the additional program but maintaining the operation of the cleaning program.

[0180] In the above solution, if a blockage occurs in the wastewater receiving area of ​​the recovery device 500, that is, if a blockage occurs in the lint collection assembly 570, only the execution of the additional program is stopped, while the washing program continues to operate until it is completed. This avoids the problem of the filtration device 600 being unable to discharge contaminated material due to continued filtration, and also increases the degree of automation as the washing process can be completed without user intervention. In particular, since the filtration module will not become inoperable and the washing program will not stop when the user is not waiting next to the washing equipment, user dissatisfaction caused by the inability to complete the washing program is avoided.

[0181] In the specific solution of this embodiment, stopping the execution of the additional program includes not starting the circulation pump 400 to perform circulation filtration during the subsequent process of operating the cleaning program, but starting the circulation pump 400 only at the drainage stage to perform drainage filtration.

[0182] Since the filtration device 600 is installed on the drainage path of the washing equipment, the wastewater flow is forced to pass through the filtration device 600. If the lint collection assembly 570 in the recovery device 500 becomes clogged, the filtration device 600 will be unable to discharge contaminated water, but it will not lose its function of performing filtration.

[0183] In this case, the cleaning equipment will not perform circulation filtration, but will activate the circulation pump 400 to perform drainage filtration only when it has reached the drainage stage. As a result, the drainage water flow will be able to pass through the filtration device 600, so it will not become impossible to discharge. Furthermore, since the filtration device 600 will not perform circulation filtration, the operating time of the filtration device 600 will be reduced. This avoids the problem of excessive filtration debris accumulating in the filtration device 600 during the drainage stage and causing clogging.

[0184] In a further solution of this embodiment, if it is determined that there is no blockage in the wastewater receiving area of ​​the recovery device 500, the cleaning program is continued to operate, and the operating state for executing the additional program is maintained.

[0185] Specifically, the control method for the cleaning equipment in this embodiment includes the following steps, as shown in Figure 10.

[0186] S31: Activate the cleaning program.

[0187] S32: Execute an additional program that directs water to the filtration module and performs filtration.

[0188] S33: Determine whether or not a blockage has occurred in the wastewater receiving area of ​​the recovery device 500.

[0189] S34: If a blockage occurs, the execution of the additional program will be stopped; otherwise, the additional program will continue to run.

[0190] S35: Continue running the cleaning program.

[0191] In step S33, if the pressure detection member 245 detects that the water pressure has reached a preset value, it is determined that a blockage has occurred in the wastewater receiving section of the recovery device 500.

[0192] Furthermore, in step S34, if it is determined that a blockage has occurred, and the water pressure detected by the pressure detection member 245 decreases, the cleaning equipment transmits further warning information to alert the user to clean the recovery device 500 after the completion of the current cleaning program.

[0193] When the water pressure detected by the pressure detection member 245 reaches a preset value and then decreases, it means that the pressure relief valve 590 has opened at that point. In this case, the user is promptly notified that a blockage occurred in the lint collection assembly 570 in the recovery device 500 during the current washing process, causing the pressure relief valve 590 to open and the pressure to be relieved. This allows the user to clean the lint collection assembly 570 in the recovery device 500 after the current wash is completed, ensuring that the filtration module will be able to operate normally when the washing machine runs the washing program again. In particular, the filtration device 600 can smoothly discharge the filtration foreign matter accumulated during the filtration process, thus ensuring a reliable filtration effect. This solves the problem of users forgetting to clean the lint collection assembly 570 in the recovery device 500 because they are unaware of its condition.

[0194] In this embodiment, the washing machine can determine during operation whether a blockage has occurred in the recovery device 500 during the process of receiving wastewater. Furthermore, if the lint collection assembly 570 in the recovery device 500 becomes clogged and can no longer receive wastewater, the execution of the additional program is stopped, but the washing program continues to operate. This allows the washing machine to complete the current washing process without user intervention, thus increasing the degree of automation. In addition, the washing machine can determine whether the pressure relief valve 590 has opened and released pressure based on the water pressure detected by the pressure detection member 245. Furthermore, if the pressure relief valve 590 has opened, a warning message can be sent to alert the user to clean the recovery device 500 after the current washing is completed. This ensures that when the washing machine operates again, the additional program is executed correctly and the filtration function is reliably achieved, thus guaranteeing the washing effect of the clothes. [Examples]

[0195] As shown in Figures 1 and 11, this embodiment differs from embodiments 1 to 8 in that a clogging detection device is provided in the filtration module to detect whether or not a clogging has occurred during the process in which the filtration device 600 discharges wastewater to the recovery device 500. Based on the detection result of the clogging detection device, the filtration module can determine whether or not a clogging has occurred during the process in which the filtration device 600 discharges wastewater to the recovery device 500.

[0196] Since the entire filtration module is installed inside the cleaning equipment, users cannot directly observe the condition of the filtration module (especially the accumulation of filtered foreign matter) when using the cleaning equipment. However, if the amount of filtered foreign matter becomes excessive, it may become impossible to continue discharging wastewater from the filtration device 600 to the recovery device 500, and the filtration module may no longer be able to perform its filtration function.

[0197] By providing the aforementioned blockage detection device, the filtration module can autonomously detect whether or not a blockage has occurred during the wastewater discharge process. Furthermore, by connecting the blockage detection device to the control system of the cleaning equipment, the cleaning equipment can react quickly if wastewater discharge is obstructed. In this way, a situation where the filtration module becomes clogged and fails to perform its filtration function because the user cannot directly observe the state of the filtration module is avoided.

[0198] In the specific solution of this embodiment, the blockage detection device includes a flow rate detection device for detecting the flow rate of wastewater discharged from the filtration device 600. Based on the flow rate of wastewater discharged from the filtration device 600, the blockage detection device determines whether or not a blockage has occurred in the process of the filtration device 600 discharging wastewater to the recovery device 500.

[0199] Furthermore, in this embodiment, the contaminated outlet 6103 of the filtration device 600 is connected to the inlet end of the contaminated discharge pipeline 240, and the drain end of the contaminated discharge pipeline 240 is in communication with the recovery device 500. The flow rate detection device is a flow meter 243 installed in the contaminated discharge pipeline 240.

[0200] Specifically, the control method for detecting whether or not a blockage has occurred includes detecting the flow rate of wastewater discharged during the process in which the filtration device 600 discharges wastewater to the recovery device 500, and determining that a blockage has occurred during the process in which the filtration device 600 discharges wastewater to the recovery device 500 if it is detected that the flow rate of wastewater discharged from the filtration device 600 is less than a predetermined flow rate.

[0201] When the filtration module is operating normally, the filtration device 600 discharges wastewater to the recovery device 500, and the flow rate of the discharged wastewater is maintained at a constant level. However, if any of the following situations occur, the flow rate of the discharged wastewater will decrease.

[0202] Situation 1: If a large amount of filtered foreign matter accumulates inside the filtration device 600 and causes a blockage, or if filtered foreign matter accumulates and clogs a part of the contaminated discharge pipeline 240, the discharge of wastewater from the filtration device 600 to the recovery device 500 will be obstructed, and the wastewater flow rate will decrease. If the cleaning equipment detects that the wastewater flow rate has fallen below a predetermined flow rate, it means that there is a blockage in the filtration device 600 or the contaminated discharge pipeline 240 and that wastewater cannot be discharged.

[0203] Situation 2: The recovery device 500 in this embodiment is equipped with a lint collection assembly 570, which divides the inside of the recovery device 500 into a first chamber 531 and a second chamber 532 distributed vertically. The drain end of the contaminated discharge pipeline 240 communicates with the first chamber 531. Wastewater containing filtered foreign matter enters the first chamber 531, is filtered by the filter mesh of the lint collection assembly 570, and then enters the second chamber 532. As a result, the filtered foreign matter is collected in the first chamber 531, that is, it is collected on the upper surface of the lint collection assembly 570. Because the recovery device 500 can separate filtered foreign matter from the received wastewater using the lint collection assembly 570, the user can easily process the collected filtered foreign matter directly. This avoids a situation where filtered foreign matter is mixed into the water and becomes ineffective for processing.

[0204] However, if the lint collection assembly 570 in the recovery device 500 becomes clogged with filtered debris, it becomes impossible to filter the received wastewater. In this case, the wastewater cannot pass through the lint collection assembly 570 and enter the second chamber 532, and gradually fills the first chamber 531. When the first chamber 531 is full or nearly full of wastewater, the wastewater faces greater resistance when entering the recovery device 500. If the filtration device 600 completes its wastewater discharge operation by relying solely on the gravity of the wastewater itself, without using additional driving force in the process of discharging contamination to the recovery device 500, it becomes difficult for the wastewater to enter the recovery device 500, and the flow rate of wastewater decreases.

[0205] If the washing equipment detects that the wastewater flow rate has fallen below a predetermined level, it means that the first chamber 531 is nearly full due to a blockage in the lint collection assembly 570, and the filtration device 600 cannot drain any more wastewater to the recovery device 500.

[0206] In the above solution, the flow rate of wastewater discharged from the filtration device 600 directly reflects the wastewater discharge capacity from the filtration device 600 to the recovery device 500, providing an intuitive detection of whether or not a blockage has occurred during the wastewater discharge process. This detection structure and logic are simple and allow for accurate assessment of the blockage situation.

[0207] In a further solution of this embodiment, the recovery device 500 includes a housing 510. The lint collection assembly 570 is mounted at a certain height inside the housing 510 to filter the received wastewater and collect filtered foreign matter. The lint collection assembly 570 may consist of a horizontally mounted frame and a filter mesh laid on the frame.

[0208] When the filtration module of this embodiment is attached to the cleaning equipment, the housing 510 is attached to the housing 10 of the cleaning equipment so as to be insertable and retractable. The housing 510 has an opening on the upper side. The lint collection assembly 570 is attached to the inside of the housing 510 so as to be removable. If the user wants to clean the recovery device 500, in particular the lint collection assembly 570 inside it, the user can disassemble the lint collection assembly 570 from the inside of the housing 510 through the opening on the upper side of the housing 510 when the housing 510 is pulled out of the housing 10, and remove and clean it. In this case, it is not necessary to completely remove the recovery device 500, making the operation easier.

[0209] In this embodiment, the contaminated discharge pipeline 240 is provided with a contaminated discharge control valve 241 for controlling the opening and closing of the contaminated discharge pipeline 240. When the filtration device 600 filters the incoming water, the contaminated discharge control valve 241 is closed to shut off the contaminated discharge pipeline 240. This ensures that the water entering the filtration device 600 can be filtered and then discharged from the filtered water outlet 6102. When it is desired to discharge the wastewater from the filtration device 600, the contaminated discharge control valve 241 is opened to open the contaminated discharge pipeline 240. This allows the wastewater from the filtration device 600 to be discharged to the recovery device 500.

[0210] The flow meter 243 is installed between the inlet end of the polluted discharge pipeline 240 and the polluted discharge control valve 241. Only when the polluted discharge control valve 241 is open, the flow rate of the discharged wastewater is detected by the flow meter 243 to determine whether or not a blockage has occurred during the wastewater discharge process.

[0211] Preferably, a return water control valve 231 is provided outside the filtered water outlet 6102 of the filtration device 600 to control whether or not drainage to the outside is allowed from the filtered water outlet 6102. When the filtration device 600 filters the incoming water, the return water control valve 231 is open. On the other hand, when controlling the filtration device 600 to discharge wastewater, the return water control valve 231 is closed, preventing the filtration device 600 from draining water from the filtered water outlet 6102. This ensures that the wastewater inside the filtration device 600 is sufficiently discharged from the contaminated outlet 6103.

[0212] In this embodiment, the cleaning equipment executes an additional program that directs water to the filtration module for filtration during the process of operating the cleaning program. Specifically, during the cleaning or rinsing stage, the switching device 270 opens the filtered water outlet 6102 of the filtration device 600 to the circulating water pipeline 230, and the circulation pump 400 is started to perform circulation filtration. On the other hand, during the drainage stage, the switching device 270 opens the filtered water outlet 6102 of the filtration device 600 to the external discharge pipeline 250, and the circulation pump 400 is started to perform drainage filtration. The filtration device 600 avoids excessive accumulation of filtered foreign matter within the filtration device 600 by performing a contaminated discharge operation that discharges wastewater to the recovery device 500 each time filtration continues for a certain period of time.

[0213] During the operation of the filtration module, the flow rate of wastewater discharged from the filtration device 600 into the contaminated discharge pipeline 240 is detected by the flow meter 243 to determine whether there is a blockage in the process by which the filtration device 600 discharges wastewater to the recovery device 500. This is convenient for determining the current state of the filtration module when direct observation by the user is not possible. The cleaning equipment can also react quickly by determining whether the filtration device 600 is able to perform its contaminated discharge operation normally. This prevents the filtration device 600 from continuing to operate in a situation where it is unable to discharge contaminated waste. Furthermore, it is possible to prompt the user to clean the recovery device 500 immediately to avoid any impact on the subsequent operation of the cleaning equipment. [Examples]

[0214] As shown in Figures 1 and 12, this embodiment differs from Embodiment 9 in that the blockage detection device includes a water level detection device 580 for detecting water level information in the recovery device 500. Based on the water level information in the recovery device 500, the blockage detection device determines whether or not a blockage has occurred during the process in which the filtration device 600 discharges wastewater to the recovery device 500.

[0215] Specifically, the recovery device 500 of this embodiment has a recovery chamber inside the housing 510. The lint collection assembly 570 is installed inside the recovery chamber and surrounds the collection chamber that receives the wastewater. The drain end of the contaminated discharge pipeline 240 communicates with the collection chamber. The wastewater containing filtered foreign matter enters the collection chamber, is filtered by the lint collection assembly 570, and then flows into the recovery chamber outside the collection chamber. As a result, the filtered foreign matter is collected in the collection chamber.

[0216] The water level detection device 580 is installed inside the recovery chamber and detects the water level information outside the collection chamber within the recovery chamber. Figure 12 shows a plan view of the recovery device 500 in this embodiment. Specifically, the water level detection device 580 is installed on the inside of the side wall of the housing 510.

[0217] As a specific solution in this embodiment, the water level detection device 580 detects the water level in the recovery device 500. If the water level is higher than a predetermined level, it is determined that a blockage has occurred in the process of the filtration device 600 discharging wastewater into the recovery device 500.

[0218] The predetermined water level may be set near the overflow water level of the recovery device 500. That is, when it is detected that the water level inside the recovery device 500 is higher than the predetermined water level, the recovery device 500 is nearly full. At this time, the filtration device 600 continues to perform its contaminated discharge operation, making it difficult for wastewater to enter the recovery device 500, which corresponds to a blockage occurring in the wastewater discharge process. Even if the discharged wastewater does enter the recovery device 500, an overflow will immediately occur in the recovery device 500.

[0219] By detecting whether the water level in the recovery device 500 has reached a predetermined level, it is possible to determine whether a blockage has occurred during the wastewater discharge process of the filtration device 600. This allows for prompt feedback on the occurrence of a blockage and effectively prevents overflow of the recovery device 500.

[0220] As another specific solution in this embodiment, the water level detection device 580 detects the rate of change of the water level in the recovery device 500. If the rate of change of the water level is smaller than a predetermined rate of change, it is determined that a blockage has occurred in the process of the filtration device 600 discharging wastewater into the recovery device 500.

[0221] During the normal process of the filtration device 600 discharging wastewater to the recovery device 500, the wastewater entering the collection chamber of the lint collection assembly 570 is rapidly filtered and flows out of the collection chamber, causing the water level outside the collection chamber to gradually rise. However, if the lint collection assembly 570 becomes clogged with filtered foreign matter, it becomes impossible to filter the received wastewater and flow it out of the lint collection assembly 570. As a result, the rise in the water level outside the collection chamber slows down and eventually stops, significantly reducing the detectable rate of change in the water level. Furthermore, if a blockage occurs in the filtration device 600 or the contaminated discharge pipeline 240, the flow rate of wastewater entering the recovery device 500 decreases significantly, and the detectable rate of change in the water level also decreases accordingly.

[0222] By detecting whether the rate of change of the water level in the recovery device 500 is smaller than a predetermined rate of change, it is possible to determine whether a blockage has occurred in the wastewater discharge process of the filtration device 600, thereby enabling a rapid and effective response to blockages.

[0223] The specific structure of the water level detection device 580 in this embodiment, as shown in Figure 13, includes multiple sets of water level probes 581 provided at different height positions inside the recovery device. The water level probes 581 come into contact with water and generate a feedback signal. The water level detection device 580 further includes a stepped structure 582 having multiple stepped surfaces of different heights. One set of water level probes 581 is provided on each stepped surface.

[0224] Furthermore, each water level probe 581 includes two electrodes spaced apart. The two electrodes generate a feedback signal when they become conductive through water.

[0225] When the water level detection device 580 detects the water level, as the water level in the recovery device 500 rises, each time one step surface of the step structure 582 is submerged, the lower ends of the two electrodes of a pair of water level probes 581 on the corresponding step surface come into contact with the water, causing the two electrodes to conduct and generate a feedback signal. Based on the conduction / disconnection state of each of the multiple pairs of water level probes 581, the current water level in the recovery device 500 can be determined. The predetermined water level mentioned above may be the height of the step surface corresponding to any one pair of water level probes 581. When a signal indicating that the electrodes of the water level probe 581 have conducted is received, it is determined that the water level is higher than the predetermined water level.

[0226] By using the water level detection device 580 with the above structure, as the water level in the recovery device 500 continues to rise and the two electrodes of each set of water level probes 581 become conductive in sequence, the time during which the two electrodes of each set of water level probes 581 are conductive can be obtained, and the rate of change of the water level can be calculated from the difference in the time during which the two electrodes of different water level probes 581 are conductive.

[0227] Alternatively, if a predetermined time has elapsed since two electrodes on any pair of water level probes 581 became conductive, and two electrodes on an adjacent pair of water level probes 581 at a higher elevation are still not conductive, then it is determined that the rate of change of the current water level is smaller than a predetermined rate of change. For example, if a predetermined time has elapsed since two electrodes on a pair of water level probes 581 became conductive, and two electrodes on an adjacent pair of water level probes 581 on a higher stepped surface are still disconnected, then it is determined that the rate of change of the current water level is smaller than a predetermined rate of change.

[0228] Another specific structure of the water level detection device 580 is an electrode-type water level detection device 583, as shown in Figure 14, which includes two electrode sheets extending vertically for a certain length. The two electrode sheets are positioned opposite each other at a certain distance apart. The capacitance value between the two electrode sheets changes depending on the area of ​​the electrode sheets submerged below the water surface.

[0229] As the water level in the recovery device 500 changes, the area of ​​the two electrode sheets submerged below the water surface changes. That is, the area of ​​the opposing surfaces of the two electrode sheets covered by the liquid changes. Since the two electrode sheets form a capacitor, this change corresponds to the dielectric between the two electrodes changing from air to water. This causes a change in the capacitance value between the two electrode sheets. Based on the detected capacitance value, the water level in the recovery device 500 can be calculated.

[0230] By using the water level detection device 580 with the above structure, firstly, it becomes possible to acquire the specific water level height inside the recovery device 500 in real time and determine whether the current water level has reached a predetermined level. Secondly, by calculating the rate of change of the water level based on the real-time change in the detected water level height, it becomes possible to determine whether the rate of change of the water level is lower than a predetermined rate of change. In this way, water level detection inside the recovery device 500 becomes more accurate.

[0231] In this embodiment, the filtration module is equipped with a water level detection device 580 as a blockage detection device. By detecting the water level information in the recovery device 500, it is determined whether or not a blockage has occurred during the wastewater discharge process of the filtration device 600. This structure is simple, and blockage feedback is provided quickly and effectively. [Examples]

[0232] As shown in Figures 1 and 15, this embodiment differs from the above-described embodiment 10 in the specific structure of the recovery device 500.

[0233] Specifically, in this embodiment, the structure of the recovery device 500 is similar to that of Embodiment 9, and a lint collection assembly 570, which is provided at a certain height inside the housing 510, divides the inside of the recovery device 500 into a first chamber 531 and a second chamber 532 distributed vertically. The drainage end of the contaminated discharge pipeline 240 communicates with the first chamber 531. Wastewater containing filtered foreign matter enters the first chamber 531, is filtered by the filter mesh of the lint collection assembly 570, and then enters the second chamber 532. As a result, the filtered foreign matter is collected in the first chamber 531, that is, it is collected on the upper surface of the lint collection assembly 570. Because the recovery device 500 can separate filtered foreign matter from the received wastewater using the lint collection assembly 570, the user can easily process the collected filtered foreign matter directly. This avoids a situation where filtered foreign matter is mixed into the water and becomes ineffective for processing.

[0234] In the specific solution of this embodiment, the water level detection device 580 detects whether the water level in the recovery device 500 is higher than a predetermined water level, thereby determining whether a blockage has occurred in the process of the filtration device 600 discharging wastewater to the recovery device 500.

[0235] Specifically, in this embodiment, the predetermined water level is higher than the mounting height of the lint collection assembly 570. When it is detected that the water level in the recovery device 500 has reached the predetermined water level, it is possible that the recovery device 500 is nearly full of wastewater. If the filtration device 600 continues to discharge contaminated water at this time, the wastewater will not be able to enter the recovery device 500, causing a blockage. Alternatively, the lint collection assembly 570 may be covered with filtered foreign matter, causing a blockage, and as a result, the wastewater that enters the first chamber 531 may remain in the first chamber 531 after being filtered and unable to enter the second chamber 532 below, causing the water level to gradually reach the predetermined water level.

[0236] Therefore, the same judgment logic as in Example 10 can be used in the above solution in this embodiment. That is, if it is detected that the water level in the recovery device 500 is higher than a predetermined water level, it is determined that a blockage has occurred in the process of the filtration device 600 discharging wastewater to the recovery device 500.

[0237] In another specific solution of this embodiment, the water level detection device 580 detects whether the rate of change of the water level in the recovery device 500 is smaller than a predetermined rate of change, thereby determining whether a blockage has occurred in the process of the filtration device 600 discharging wastewater to the recovery device 500.

[0238] Specifically, the water level detection device 580 detects the rate of change in the water level in the second chamber 532. If the filtration device 600 or the contaminated discharge pipeline 240 becomes clogged with filtered foreign matter, the flow rate of wastewater entering the recovery device 500 decreases, and consequently, the flow rate of water entering the second chamber 532 after being filtered by the lint collection assembly 570 also decreases accordingly, which manifests as a decrease in the rate of change of the water level in the second chamber 532. Furthermore, if the lint collection assembly 570 becomes clogged with filtered foreign matter, the wastewater that enters the first chamber 531 cannot enter the lower second chamber 532 after being filtered, resulting in a decrease in the rate of change of the water level in the second chamber 532.

[0239] Therefore, the same judgment logic as in Example 10 can be used in the above solution in this embodiment as well. That is, if it is detected that the rate of change of the water level in the recovery device 500 is smaller than a predetermined rate of change, it is determined that a blockage has occurred in the process of the filtration device 600 discharging wastewater to the recovery device 500.

[0240] In this embodiment, a recovery device 500 with a different structure from that of the above embodiment 10 is used, but it still uses a method of detecting water level information to determine whether or not a blockage has occurred in the contaminated discharge process of the filtration device 600. [Examples]

[0241] As shown in Figure 1, this embodiment provides a control method for a cleaning device having the filtration module of the above embodiment. The control method includes: the cleaning device operating a cleaning program and executing an additional program that guides water to the filtration module for filtration; determining whether or not a blockage has occurred in the contaminated discharge process of the filtration device 600; and, if a blockage has occurred in the contaminated discharge process, stopping the execution of the additional program but maintaining the operation of the cleaning program.

[0242] In the above solution, if it is determined that a blockage has occurred during the waste discharge process of the filtration device 600, only the execution of the additional program is stopped, while the washing program continues to operate until it is completed. This avoids various problems that may occur if filtration continues, and also increases the degree of automation as the washing process can be completed without user intervention. In particular, since the filtration device 600 will no longer be unable to discharge wastewater and the washing program will not stop when the user is not waiting near the washing equipment, user dissatisfaction caused by the inability to complete the washing program is avoided.

[0243] In the specific solution of this embodiment, stopping the execution of the additional program includes not starting the circulation pump 400 to perform circulation filtration during the subsequent process of operating the cleaning program, but starting the circulation pump 400 only at the drainage stage to perform drainage filtration.

[0244] Since the filtration device 600 is installed on the drainage path of the cleaning equipment, the wastewater flow has no choice but to pass through the filtration device 600. In this embodiment, for example, when the execution of the additional program is stopped by adjusting the clogging determination conditions, such as the predetermined flow rate in Example 9, or the predetermined water level or predetermined rate of change in Examples 10 and 11, clogging occurs in the contaminated discharge process of the filtration device 600, but the function of the filtration device 600 is not completely lost.

[0245] In this case, the cleaning equipment will not perform circulation filtration, but will activate the circulation pump 400 to perform drainage filtration only when it has reached the drainage stage. This allows the drainage water flow to pass through the filtration device 600, so it will not become impossible to discharge.

[0246] In a further solution of this embodiment, if it is determined that no blockage has occurred during the contamination discharge process, the cleaning program is continued to operate, and the operating state for executing the additional program is maintained.

[0247] Specifically, the control method for the cleaning equipment in this embodiment includes the following steps, as shown in Figure 16.

[0248] S41: Activate the cleaning program.

[0249] S42: Execute an additional program that directs water to the filtration module and performs filtration.

[0250] S43: Determine whether or not a blockage occurred during the contamination discharge process of the filtration device 600.

[0251] S44: If a blockage occurs during the contamination discharge process, the execution of the additional program will be stopped; otherwise, the additional program will continue to run.

[0252] S45: Continue running the cleaning program.

[0253] In a further solution of this embodiment, if the cleaning device determines that a blockage has occurred during the contaminated discharge process of the filtration device 600, it further transmits a warning message to the user, instructing them to clean the recovery device 500 or maintain the filtration device 600 after the completion of the current cleaning program. This avoids the problem of the user not knowing that a blockage has occurred during the contaminated discharge process of the filtration device 600, thus ensuring that the filtration module will be able to operate normally when the cleaning device runs the cleaning program again. In particular, the filtration device 600 can smoothly discharge the filtration foreign matter accumulated during the filtration process, thus guaranteeing the filtration effect.

[0254] In this embodiment, the washing machine can acquire the operating status of the filtration module and, if it determines that a blockage has occurred in the contaminant discharge process of the filtration device 600, it can stop the execution of the additional program but continue the operation of the washing program. This allows the washing machine to complete the current washing process without user intervention, thus increasing the degree of automation. Furthermore, it avoids the problem of wasting a large amount of washing time because the washing program would have to be temporarily stopped if a malfunction occurs in the filtration module, preventing the user from quickly taking action. [Examples]

[0255] As shown in Figures 1, 2, 5-9, and 11-15, this embodiment differs from the above embodiment in that the filtration capacity of the filtration module is defined as the number of surplus usable cycles of the filtration module. When the number of surplus usable cycles falls to a preset number, the cleaning device emits a warning signal.

[0256] Specifically, the recovery device 500 in this embodiment is integrated with the detergent dispenser and can be installed inside the detergent dispenser's tank. After the recovery device 500 filters the received wastewater, the filtered water enters the tank. The tank is in communication with the water storage tank 100 of the cleaning equipment, and the filtered water can be drawn into the water storage tank 100.

[0257] The tank is equipped with an insertable / removable dispenser case. The dispenser case has a detergent addition chamber and a recovery and installation chamber, which are separated from each other. The detergent addition chamber and the recovery and installation chamber are each independently connected to the tank. The recovery device 500 is installed in the recovery and installation chamber.

[0258] The user can pull out the dispenser case and dispense detergent into the detergent dispensing chamber. Afterward, when the dispenser case is reinserted into the tank, the cleaning equipment can automatically dispense the detergent from the detergent dispensing chamber into the water tank 100 when the cleaning program is run. Furthermore, if the recovery device 500 needs cleaning, the dispenser case can be pulled out to remove the lint collection assembly 570 inside the recovery device 500 for cleaning.

[0259] In this embodiment, based on the filtering foreign matter collection capacity of the recovery device 500, it is possible to predict the maximum number of cleaning programs that the cleaning equipment can run during the period from the initial state (i.e., the state in which no filtering foreign matter has been collected) until the recovery device 500 is completely clogged with filtering foreign matter.

[0260] Each time the cleaning equipment runs the cleaning program, in this embodiment, the number of uses of the recovery device 500 is recorded as increasing by one. The cleaning equipment has a preset total number of uses S for the recovery device 500 from its initial state. This total number of uses S is less than or equal to the maximum number of cleaning programs that the cleaning equipment can run. In other words, the recovery device 500 will not become completely clogged with filtered foreign matter before the number of uses S1 of the recovery device reaches the total number of uses S.

[0261] In this embodiment, the surplus number of usable cycles of the filtration module refers specifically to the surplus number of usable cycles of the recovery device 500. In other words, it is the difference between the total number of usable cycles S and the number of cycles S1 that have been used.

[0262] Generally, when a user pulls out the dispenser case once, it means that the user has put detergent into the dispenser case and the cleaning equipment has run the cleaning program once. Therefore, in a further solution of this embodiment, the cleaning equipment accumulates the number of times the dispenser case has been pulled out as the number of uses S1 of the recovery device 500, and calculates the number of remaining usable times S2 = S - S1 of the recovery device 500 as the number of remaining usable times of the filtration module. When the number obtained by the calculation S2 falls to a preset number S0, the cleaning equipment emits a warning signal and prompts the user to clean the recovery device 500.

[0263] The above solution enables the washing machine to automatically alert the user to promptly clean the recovery device 500. This prevents a situation where the washing machine operates the washing program when the recovery device 500 is clogged, resulting in the inability to discharge the wastewater from the filtration device 600 and affecting the filtration effect of the washing process.

[0264] In detail, in this embodiment, the value of the preset number of times S0 is set to 0. Then, after the user has pulled out the dispenser case any number of times, if the cumulative number of times S1 reached S, that is, if S2 decreased to 0, the cleaning device emits a warning signal. In this case, the user can clean the recovery device 500 and then reinsert the dispenser case into the detergent dispensing device tank.

[0265] Furthermore, in this embodiment, when the cleaning device detects that the dispenser case has been reinserted, it resets the current cumulative count S1. Then, when it detects that the dispenser case has been pulled out again, it records the cumulative count S1 as 1.

[0266] For example, the total number of uses S pre-set for the cleaning device is 20, and each time the user pulls out the dispenser case, the number S2 calculated by the cleaning device decreases by 1. When the user pulls out the dispenser case for the 20th time, the S2 calculated by the cleaning device becomes 0, and a warning signal is issued. Also, when the user reinserts the dispenser case after cleaning the recovery device 500, the current cumulative count S1 is reset. When the cleaning device detects that the dispenser case has been pulled out again, it records the current cumulative count S1 as 1. Naturally, the pre-set value S for the total number of uses can be any other value, for example, any number within the range of 10 to 30.

[0267] One point to explain is that in this embodiment, if the cleaning device detects that the dispenser case has been reinserted after issuing a warning signal, it directly performs an operation to reset the current cumulative count S1 without detecting whether the recovery device 500 has been cleaned or not. In other words, the default behavior of the cleaning device is that after issuing a warning signal, the user cleans the recovery device 500 before reinserting the dispenser case into the tank.

[0268] However, in this embodiment, the washing device does not accumulate the actual number of times the washing program is run, but rather the number of times the dispenser case is pulled out. Therefore, even if the user pulls out the dispenser case multiple times, the washing program may only run once. Alternatively, if the amount of lint that comes off the clothes being washed by the user is small, even if the cumulative number of times the dispenser case has been pulled out by the user S1 reaches S, that is, even if the washing program has run a cumulative S times, the recovery device 500 may still have a certain capacity and may continue to accept wastewater and collect filtered foreign matter in the wastewater.

[0269] In the two cases described above, when the cleaning device emits a warning signal, the user may choose to reinsert the dispenser case into the detergent dispenser tank without cleaning the recovery device 500 and continue running the next cleaning program. However, in this case, the cleaning device resets the current cumulative count S1 and triggers the warning again only when the number of times the dispenser case has been pulled out has accumulated back to S0.

[0270] However, since a certain amount of filtered foreign matter has already been collected in the recovery device 500, the recovery device 500 may become clogged with filtered foreign matter before the total number of times the cleaning equipment runs the cleaning program again reaches S0, and it may no longer be able to accept any more wastewater discharged from the filtration device 600. However, at this time, the cumulative number S1 has not yet reached S0, so the cleaning equipment does not issue a warning.

[0271] To avoid the above-mentioned problems, in a further solution of this embodiment, the cleaning device can receive a user's adjustment command for the total number of usable cycles and adjust the value of the total number of usable cycles from a preset S to S'.

[0272] Specifically, after the cleaning device emits a warning signal, if the user determines that cleaning of the recovery device 500 is not necessary at that time, they may complete the detergent dispensing operation and then insert the dispenser case directly into the detergent dispensing device's tank. Subsequently, the user can manually operate the cleaning device to set the value of the total number of usable cycles based on the current amount of filtered foreign matter collected in the recovery device 500. For example, if the preset value of the total number of usable cycles is S=20, the user can manually adjust that value to S'=5. In this way, the cleaning device will again accumulate the number of times the dispenser case has been pulled out. Then, when the dispenser case is pulled out for the fifth time, that is, when the warning condition S2=S'-S1=0 is triggered, the cleaning device will emit a warning signal.

[0273] In the above solution, the cleaning device provides an editable function for the value of the total available number of uses of the recovery device 500. When the user does not clean the recovery device 500 after a warning from the cleaning device, the user can manually adjust the value of the total available number of uses to reduce the number of operating times of the cleaning program that the cleaning device had accumulated before the warning. This ensures that no abnormality due to clogging occurs in the recovery device 500 during the operation of the cleaning program.

[0274] In a further solution of this embodiment, after the cleaning device receives the user's adjustment command and adjusts the value of the total available number of uses, when the accumulated number of drawer openings of the dispenser case reaches the adjusted S’, that is, when the warning condition of S2 = 0 is triggered, the cleaning device emits a warning signal. After that, the value of the total available number of uses automatically returns to a preset value S (for example, 20 times in this embodiment).

[0275] The operation for the user to independently set the value of the total available number of uses generally occurs when the cleaning device issues a warning but the user does not clean the recovery device 500. Therefore, after the cleaning device issues a warning signal again, due to the fact that the user did not perform a cleaning operation during the previous warning, the recovery device 500 has reached a state where it is highly likely to be clogged by filtering foreign matters, or at least is in a state close to that. Therefore, it is very likely that the user will manually clean the recovery device 500 during that warning.

[0276] When the recovery device 500 after cleaning is used again, since the filtering foreign matters have not been collected yet, the total number of operations of the cleaning program is accumulated again. That is, basically, no abnormality due to clogging occurs in the recovery device 500 until the accumulated number of uses of the recovery device 500 reaches the preset total available number of uses S again. In this embodiment, by automatically controlling the value of the total available number of uses to return to the preset value S, it saves the trouble for the user to set manually. Moreover, the problem that the cleaning device issues a warning in a situation where the recovery device 500 can still be used multiple times continuously is also eliminated.

[0277] In a preferred solution of this embodiment, after the cleaning device detects the pulling out of the dispenser case and issues a warning signal based on the adjusted total available usage times value S', if no adjustment command for the total available usage times is received before receiving the start command of the cleaning program, the value of the total available usage times may be restored to a preset value S. On the other hand, if an adjustment command is received, the value of the total available usage times may be determined based on the received adjustment command.

[0278] After the cleaning device issues a warning based on the adjusted total available usage times value S', further, due to special circumstances such as the previously set value S' by the user being inappropriate, there may be a case where the recovery device 500 can continue to be used without being cleaned at that time. In the above solution, when the above situation occurs, the user can continue to manually set the value of the total available usage times. On the other hand, if the user starts the cleaning program without manually setting the value of the total available usage times, it means that the user has cleaned the recovery device 500. Therefore, the cleaning device automatically controls to restore the value of the total available usage times to the preset value S.

[0279] In this embodiment, the total available usage times of the recovery device 500 is preset in the cleaning device, and the number of times the recovery device 500 is pulled out together with the dispenser case of the detergent input device is accumulated as the used times of the recovery device 500. When the used times reach the preset available usage times, the cleaning device issues a warning signal to alert the user to clean the recovery device 500. Thereby, when the cleaning device operates the cleaning program, it is ensured that the recovery device 500 has sufficient capacity to receive the dirty water discharged from the filtering device 600 and collect the filtered foreign matters.

Embodiment

[0280] As shown in FIGS. 1, FIGS. 2, FIGS. 5 to FIGS. 9 and FIGS. 11 to FIGS. 15, this embodiment further limits any of the above embodiments.

[0281] The cleaning device executes an additional program in the cleaning program that directs water to a filtration module for filtration. This additional program is executed once each time the cleaning program completes its operation.

[0282] In this embodiment, the filtration capacity of the filtration module includes the number of times the filtration module can continue to execute the additional program until a blockage occurs in the filtration device 600 and / or the recovery device 500 in its current state.

[0283] The initial filtration capacity of the filtration module is at least 10 to 30 cycles, preferably 15 to 25 cycles. For example, the initial filtration capacity of the filtration module is at least 20 cycles. In other words, when no foreign matter is adhering to the filtration device 600 and no foreign matter and wastewater are collected in the recovery device 500, the filtration module can run the additional program completely without clogging when operating the cleaning program at least 20 times consecutively.

[0284] In the above description of this embodiment, "to fully execute the additional program" means to perform circulating filtration based on a predetermined time length in each of the washing and rinsing stages, and to perform drainage filtration in the drainage stage.

[0285] Each time the filtration module fully executes an additional program during the cleaning program, the cleaning equipment records that the filtration module's current filtration capacity has decreased by one from its previous filtration capacity. Furthermore, if the duration for which the filtration module performs circulating filtration during that cleaning program is shorter than a predetermined duration, the current filtration capacity of the filtration module can be calculated by determining the amount of filtration capacity lost during that cleaning program based on the ratio of the actual filtration duration to the predetermined duration.

[0286] In a preferred solution of this embodiment, the filtration threshold value is set to 1 or 2. If the current filtration capacity of the filtration module is lower than the filtration threshold, the system controls the water supply to the filtration module to stop, so that recirculation filtration is not performed in subsequent processes of that cleaning program.

[0287] In the above solution, the cleaning device is controlled to stop supplying water to the filtration module when the calculated filtration capacity of the filtration module is close to zero but has not yet reached zero. This avoids the problem that, due to a discrepancy between the calculated filtration capacity and the actual state of the filtration module at that time, it is not possible to quickly control the device to stop supplying water to the filtration module before any abnormalities such as clogging occur in the filtration module.

[0288] In another preferred solution of this embodiment, the initial filtration capacity of the filtration module is X, and the filtration threshold value is set to X / 5 to X / 3. For example, if the initial filtration capacity of the filtration module is 20 cycles, the filtration threshold value can be set to 4 to 6 cycles. If the current filtration capacity of the filtration module is lower than the filtration threshold, the frequency and / or duration of water supply to the filtration module is controlled to decrease.

[0289] In the above solution, because the filtration threshold value is relatively large, even if there is a discrepancy between the calculated filtration capacity of the washing equipment and the actual state of the filtration module at that time, basically, if the calculated filtration capacity is lower than the filtration threshold, the filtration module is not already clogged or there is no other abnormality affecting the filtration effect. In this case, by continuing to operate the washing program in a way that reduces the frequency and / or duration of water supply to the filtration module, it is possible to maintain some of the filtration effect and improve the effectiveness of clothing washing.

[0290] Specific methods for reducing the frequency and / or duration of water supply to the filtration module have been described in detail in the above embodiment, and will not be described again in this embodiment.

[0291] In a further solution of this embodiment, the filtration device 600 can remove filtration impurities larger than 50 μm in size by filtering the washing water and wastewater from the washing equipment. The filtration impurities may include microplastics. In particular, the filtration impurities may include synthetic resin fibers that are longer than 50 μm and have a diameter of 10 to 1000 μm. Preferably, the synthetic resin fibers have a length of 400 to 600 μm, with the most commonly observed length being 500 μm ± 50 μm. Also preferably, the diameter of these synthetic resin fibers is 10 to 50 μm, with the most commonly observed having a diameter of 17 μm ± 2 μm.

[0292] To achieve filtration and removal of microplastics of the above size, the filter mesh of the filtration device 600 is selected to be 20 to 500 mesh. Furthermore, to ensure that the recovery device 500 can collect as much microplastic as possible from the wastewater, and to prevent the problem of microplastics removed by the filtration device 600 passing through the lint collection assembly 570 within the recovery device 500, the pore size of the filter mesh of the lint collection assembly 570 is at least less than or equal to the pore size of the filter mesh of the filtration device 600. That is, the number of meshes in the filter mesh of the lint collection assembly 570 is 20 to 500 mesh or more, which is the number of meshes in the filter mesh of the filtration device 600.

[0293] In this embodiment, extensive prior testing and verification were conducted on different types of clothing and different washing programs. The results showed that by setting the mesh count of the lint collection assembly 570 and the filter mesh count of the filtration device 600 within the above range, it was possible to remove synthetic resin fibers of the above size from the washing water and the wastewater from the washing equipment. Furthermore, it was found that microplastic particles, which ultimately account for more than 80% of the total content in the water, could be collected in the recovery device 500, significantly reducing the final microplastic content in the wastewater flow from the washing equipment and meeting the standards for direct discharge.

[0294] In this embodiment, since the filtration device 600 has a self-cleaning function, the loss of the filtration capacity of the filtration module mainly appears in the recovery device 500. For example, in the recovery device 500, as the total amount of collected filtration foreign matters increases, the yarn debris collection assembly 570 is gradually covered with filtration foreign matters, and as a result, the filtration foreign matters clog the meshes of the filter mesh, making it impossible for the yarn debris collection assembly 570 to realize the filtration function for the sewage.

[0295] In this embodiment, a large number of tests and trials were conducted in advance for different types of clothing and different washing programs. By adjusting the structure of the yarn debris collection assembly 570, when the maximum amount of collectable filtration foreign matters was changed, on the premise that the user does not clean the recovery device 500, the filtration module was able to completely execute the additional program and guarantee the user experience when continuously operating at least 10 to 30 washing programs.

[0296] The above description 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 above by the preferred embodiment, it is not the main idea of limiting the present invention. Without departing from the scope of the technical means of the present invention, any minor changes or modifications that those skilled in the art can implement using the technical content presented above are equivalent modified equivalent embodiments and none of them depart from the content of the technical means of the present invention. Also, any simple modifications, equivalent deformations, and modifications added to the above embodiments based on the technical essence of the present invention all belong to the scope of the solution means of the present invention.

Explanation of Reference Numerals

[0297] 10 Housing 100 Water Storage Tank 110 Window Packing 220 Circulation Pipeline 230 Ring Water Pipeline 231 Return Water Control Valve 240 Contaminated Discharge Pipeline 241 Contaminated Discharge Control Valve 243 Flow Meter 244 Pollution discharge branch 245 Pressure detection member 246 Branch control valve 247 Pressure relief channel 250 External discharge pipe 260 Water storage tank drain pipe 270 Switching device 400 Circulation pump 500 Recovery device 510 Housing 511 First water inlet 512 Second water inlet 531 Chamber 1 532 Second Chamber 533 Main containment chamber 570 Lint Collection Assembly 571 First lint collection assembly 572 Second lint collection assembly 580 Water level detection device 581 Water level probe 582 Step structure 583 Electrode-type water level detection device 590 Pressure relief valve 591 Valve body 5911 Water inlet 5912 Water outlet 592 Valve Plug 593 Position return member 594 Protrusion 595 Position regulation part 596 valve seat 597 Guide Rod 600 Filtration equipment 610 Filtration Chamber 6101 Water inlet 6102 Filtered water outlet 6103 Pollution outlet 620 Filtration mechanism 621 Water outlet fitting 660 Drive Mechanism 680 cleaning particles 690 Shielding board 691 Water passage hole

Claims

1. A filtration device equipped with a contaminated outlet for discharging wastewater containing filtered foreign matter, A recovery device that communicates with the contaminated outlet of the filtration device and receives the wastewater discharged from the filtration device, The system includes a blockage detection device for detecting whether or not a blockage has occurred during the process in which the filtration device discharges wastewater to the recovery device, The aforementioned blockage detection device includes a flow rate detection device for detecting the flow rate of wastewater discharged from the filtration device, and the blockage detection device determines, based on the flow rate of wastewater discharged from the filtration device, whether or not a blockage has occurred in the process of the filtration device discharging wastewater to the recovery device. Furthermore, the filtration module includes a contaminated discharge pipeline, wherein the contaminated discharge port of the filtration device is connected to the inlet end of the contaminated discharge pipeline, the drain end of the contaminated discharge pipeline is in communication with a recovery device, and the flow rate detection device is provided in the contaminated discharge pipeline.

2. The filtration module according to claim 1, wherein the blockage detection device includes a water level detection device for detecting water level information in the recovery device, and the blockage detection device determines whether or not a blockage has occurred in the process of the filtration device discharging wastewater to the recovery device based on the water level information in the recovery device.

3. The filtration module according to claim 2, wherein the water level detection device includes a plurality of water level probes provided at different height positions inside the recovery device, and the water level probes come into contact with water to generate a feedback signal.

4. The filtration module according to claim 3, wherein a set of water level probes includes two electrodes spaced apart, and the two electrodes generate a feedback signal when conducted by water.

5. A collection device comprising at least two sets of lint collection assemblies, The filtration module according to claim 1, characterized in that each lint collection assembly receives wastewater discharged from the filtration device independently and / or together, and collects filtered foreign matter in the wastewater.

6. The filtration module according to claim 5, characterized in that each lint collection assembly has a collection chamber for collecting filtered foreign matter, and each collection chamber communicates with a contaminated outlet of the filtration device.

7. Furthermore, the filtration module according to claim 6, further comprising a contaminated discharge pipeline, wherein the contaminated discharge pipeline has an inlet end connected to the contaminated discharge port of the filtration device, a drain end communicating with one of the collection chambers, the space between the inlet end and the drain end of the contaminated discharge pipeline is in communication with a contaminated discharge branch, the drain end of the contaminated discharge branch is in communication with another collection chamber, and the contaminated discharge branch is provided with a branch control valve for controlling the opening and closing of the contaminated discharge branch.

8. The filtration module according to claim 7, characterized in that a pressure detection member for detecting the water pressure in the polluted discharge channel is provided between the inlet end of the polluted discharge channel and the channel control valve.

9. The filtration module according to claim 8, characterized in that the initial state of the branch control valve is closed, and a decision is made whether or not to open the branch control valve based on the water pressure detected by the pressure detection member.

10. The filtration module according to any one of claims 7 to 9, wherein the polluted discharge pipeline is provided with a polluted discharge control valve for controlling the opening and closing of the polluted discharge pipeline, and the polluted discharge control valve is provided between the drain end of the polluted discharge pipeline and the inlet end of the polluted discharge branch.

11. The filtration module according to claim 1, characterized in that it includes a pressure relief device provided between the contaminated discharge port of the filtration device and the recovery device, which is used to release pressure when the wastewater entering the recovery device becomes clogged.

12. The filtration module according to claim 11, characterized in that the pressure relief device includes a pressure relief channel and a pressure relief valve provided in the pressure relief channel, the water inlet end of the pressure relief channel is connected between the contaminated discharge port of the filtration device and the recovery device, and when the pressure relief valve is opened, the pressure relief channel opens, allowing wastewater discharged from the filtration device to enter the pressure relief channel and achieve pressure relief.

13. The aforementioned pressure relief valve is A valve body provided with a water inlet and a water outlet, A valve plug is provided inside the valve body so as to be able to reciprocate, The valve plug includes a return member that applies a return force to the valve plug to maintain the closure of the water inlet, The filtration module according to claim 12, characterized in that when the water pressure in the pressure relief channel reaches a preset value, the valve plug moves due to the action of the water pressure to open the water inlet, and when the water pressure in the pressure relief channel decreases, the valve plug returns to its original position due to the action of the return member to close the water inlet.

14. The filtration module according to claim 13, characterized in that the valve body has a constant extension length along the direction of reciprocating motion of the valve plug, the water inlet is provided at one end of the valve body, and the water outlet is provided in a region of the side wall of the valve body closer to the end where the water inlet is located.

15. Furthermore, the filtration module according to any one of claims 12 to 14, further comprising a contaminated discharge pipeline, wherein the contaminated discharge pipeline has an inlet end connected to the contaminated discharge port of a filtration device, a drain end communicating with a recovery device, the inlet end of a pressure relief branch communicating with the contaminated discharge pipeline, and the contaminated discharge pipeline is provided with a contaminated discharge control valve for controlling the opening and closing of the contaminated discharge pipeline.

16. The filtration module according to claim 15, characterized in that the aforementioned pollution discharge control valve is provided between the drainage end of the pollution discharge pipeline and the inlet end of the pressure relief branch.

17. The pressure relief device includes a pressure relief channel, and the water inlet end of the pressure relief channel is connected between the contaminated outlet of the filtration device and the recovery device. The filtration module according to claim 16, characterized in that the drain end of the pressure relief channel communicates with an external space, or the drain end of the pressure relief channel communicates with a recovery chamber outside the collection chamber.

18. A cleaning device including a water storage tank, Furthermore, the cleaning device includes a filtration module according to any one of claims 1 to 9, wherein the filtration device of the filtration module is in communication with the water storage tank.

Images