Filtration system, filtration module, laundry equipment, and control method

Abstract

A filtration system, a filtration module, a laundry facility, and a control method are provided. [Solution] This invention belongs to the field of laundry equipment and discloses a filtration system, filtration module, laundry equipment, and control method, wherein the filtration system comprises a first filtration water channel driven by a pump and draining water from the washing equipment's water tank to the outside of the laundry equipment via at least a filter and a filtration device, and a second filtration water channel draining water from the filtration device to the outside of the laundry equipment via at least a sewage receiving device with filtration function and the pump. In this invention, the laundry equipment filtration system has two filtration water channels that can drain water to the outside after filtration, thereby sufficiently removing filtered impurities in the water and reducing the content of filtered impurities in the washing equipment's drainage water flow, and by driving the first filtration water channel by a pump and driving the second filtration water channel via the same pump, the power structure for filtration and drainage is simplified.

Description

[Technical Field]

[0001] The present invention relates to the technical field of laundry equipment, and more particularly to a filtration system, a filtration module, a laundry equipment and a control method. [Background technology]

[0002] In laundry equipment for washing clothes, such as a washing machine, friction occurs between the clothes and between the clothes and the washing machine body during the washing process, causing lint to form on the clothes and fall off, which then gets mixed into the wash water. When the washing machine finishes washing and drains the water, the lint that has fallen off the clothes is discharged along with the drain water.

[0003] However, in recent years, the proposed concept of microplastics has been gaining increasing attention in the field of environmental protection, and research has shown that a significant source of microplastics is wastewater discharged from household washing machines. This is because, with the widespread use of synthetic fiber fabrics, clothing fibers shed during the washing process are discharged into the washing machine's wastewater, becoming microplastics mixed into the natural water environment. Microplastics enter the ecological cycle directly along with the wastewater, and through the natural biological chain, ultimately accumulate in the human body, potentially affecting human health. For this reason, some regions have established relevant standards for the content of microplastics in washing machine wastewater.

[0004] Currently, the most common method for filtering washing machine wastewater is to install a filter inside the drain pump or in the drain channel. However, most conventional drain pumps with filtration functions can only filter relatively large contaminants to prevent them from clogging the drain channel. Lint in the water, i.e., the above-mentioned microplastics, is not effectively captured by the filter inside the drain pump and is discharged from the washing machine in large quantities mixed in the wastewater flow. Therefore, how to effectively filter impurities such as lint contained in the wastewater flow of laundry equipment is a problem that needs to be solved in the field.

[0005] Furthermore, many current washing machines require users to remove the filter and clean it manually, which is inconvenient to use. To address this issue, prior art has proposed a filter device with a self-cleaning function that can automatically discharge adhering filtered impurities. However, because the interior space of a washing machine is relatively compact and the wastewater discharge path through which the filter discharges wastewater is generally relatively long and may have a certain height difference, it is difficult to sufficiently discharge the wastewater from the filter device without relying on driving force, resulting in a problem of wastewater remaining in the filter device after the wash is completed. Even after long-term use of the filter device, problems such as bacterial growth may still occur.

[0006] In view of the above, the present invention is proposed. Summary of the Invention [Problem to be solved by the invention]

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a filtration system, a filtration module, a laundry equipment and a control method. [Means for solving the problem]

[0008] In order to solve the above technical problems, the first object of the present invention is to provide a laundry equipment filtration system and laundry equipment, thereby effectively reducing the content of filtered impurities in the wastewater flow of the laundry equipment, and specifically, the following technical solutions are adopted:

[0009] 1. A filtration system for a laundry facility, comprising: A first filtration waterway driven by a pump, which drains water from a water tank of the laundry facility through at least a filter and a filtration device in this order to the outside of the laundry facility; The washing machine is characterized by comprising a second filtration water channel that drains water from the filtration device to the outside of the washing machine via at least a wastewater receiving device having a filtering function and the pump.

[0010] Furthermore, the second filtration water channel passes through at least a pump, and then joins the first filtration water channel to be discharged to the outside.

[0011] Furthermore, the pump is installed on the first filtration water passage between the water tank and the filtration device.

[0012] In the second filtration water channel, the wastewater receiving device communicates with the pump, or communicates with a portion of the first filtration water channel located between the water tank and the pump.

[0013] Furthermore, the aforementioned filter is integrated into the pump, and the aforementioned first filtration channel is a tank drain pipe for directing water from the tank to the pump; an intermediate pipe for conveying water from the pump to the filtration device; and a drainage pipe for draining the water to the outside of the laundry facility. The wastewater receiving device communicates with the interior chamber of the pump, or the wastewater receiving device communicates with the aquarium drain pipe via a pipe.

[0014] Furthermore, the system further includes a wastewater discharge control device for controlling the opening and closing of the second filtration water channel.

[0015] Furthermore, the second filtration water passage is provided with a sewage discharge pipeline for conducting water from the filtration device to the sewage receiving device, and the sewage discharge control device is provided with a sewage discharge control valve installed on the sewage discharge pipeline.

[0016] Furthermore, the wastewater receiving device is installed below the filtering device, and the filtering device drains the wastewater into the wastewater receiving device along the wastewater discharge pipe by gravity; Preferably, the filtering device is installed above the height of the central axis of the water tank, and the wastewater receiving device is installed below the height of the central axis of the water tank; More preferably, the pump is installed below the height of the central axis of the tank.

[0017] The apparatus further includes a third filtration water passage that is driven by a pump and that flows from the water tank through at least the filter and the filtration device in this order, and then returns to the water tank.

[0018] Furthermore, a switching device is further provided for controlling the first filtration water channel and the third filtration water channel to be selectively opened, Preferably, the first filtration water channel includes a drain pipe for draining water to the outside of the laundry facility, and the third filtration water channel includes a return pipe for returning water to the water tank. The switching device is connected to the filter, the drain pipe, and the return pipe, respectively, and controls the drain pipe and the return pipe so that they are selectively connected to the filter.

[0019] A laundry facility comprising the above-described laundry facility filtration system.

[0020] The second object of the present invention is to provide a laundry equipment with a filter, which can discharge wastewater without relying on extra driving force and prevent the problem of residual water remaining inside. Specifically, the following technical solutions are adopted:

[0021] 1. A laundry facility comprising: Aquarium and a filtering device for receiving and filtering water in a water tank, the filtering device being provided with a wastewater outlet for discharging wastewater containing filtered impurities; The system further comprises a wastewater receiving device that is connected to the wastewater outlet of the filtering device, is installed at a position lower than the height of the wastewater outlet, and receives the wastewater discharged from the filtering device.

[0022] Furthermore, the installation position of the aforementioned filtration device is higher than the height of the central axis of the water tank, and the installation position of the aforementioned wastewater receiving device is lower than the height of the central axis of the water tank, Preferably, the laundry equipment further comprises a housing, the water tub being located within the housing; A first mounting space is formed by the side wall of the housing, the top wall of the housing, and the cylindrical wall of the water tank, and a second mounting space is formed by the same side wall of the housing, the bottom wall of the housing, and the cylindrical wall of the water tank, and the filtration device is installed in the first mounting space, and the wastewater receiving device is installed in the second mounting space.

[0023] Furthermore, the wastewater receiving device described above includes a lint collection assembly for filtering the wastewater received by the wastewater receiving device and collecting filtered impurities contained in the wastewater.

[0024] Furthermore, a drainage device is provided which is connected to the water tank and drains wastewater outside the laundry facility, and the wastewater filtered in the wastewater receiving device is discharged outside the laundry facility via the drainage device.

[0025] Furthermore, the drainage device is equipped with a pump whose water inlet end is connected to the water tank, and a drainage pipe that receives water pressed out from the pump and discharges it outside the laundry equipment, and the wastewater receiving device is connected to the pump, and the filtered wastewater is pressure-pumped from the pump into the drainage pipe and discharged.

[0026] Furthermore, the pump comprises a pump body, the wastewater receiving device is installed in contact with the pump body, the wastewater receiving device is installed above the pump body or installed horizontally on one side of the pump body, Alternatively, the pump may include a pump body, the wastewater receiving device may be spaced apart from the pump body, and the wastewater receiving device and the pump body may be connected to each other via a discharge pipe.

[0027] Furthermore, the wastewater receiving device is installed at a distance from the pump body and communicates with it via a discharge pipe, and the outlet on the wastewater receiving device for connecting the discharge pipe is higher than the inlet on the pump body for connecting the discharge pipe.

[0028] Furthermore, the water outlet of the pump is connected to the water inlet of the filtration device, and the drainage pipe is connected to the filtered water outlet of the filtration device, and the water pressed out from the pump is filtered by the filtration device and then discharged outside the laundry equipment along the drainage pipe.

[0029] Furthermore, the above-mentioned laundry equipment further comprises a return pipe connected to the water tank and a switching device connected to the filtered water outlet of the filtration device, and the above-mentioned switching device controls the return pipe and the drain pipe so that they are selectively opened to the filtered water outlet of the filtration device.

[0030] Furthermore, a filter is installed between the inlet and outlet ends of the pump, and the water that enters the pump is filtered by the filter and then pressed out of the filter. Preferably, the size of the impurities that the filter can filter is larger than the size of the impurities that the filter device can filter, and the size of the impurities that the filter device can filter is equal to or larger than the size of the impurities that the lint collecting assembly in the wastewater receiving device can collect.

[0031] The third object of the present invention is to provide a filtration module, a laundry equipment, and a method for controlling the laundry equipment, which can realize self-detection of a clogged state in a wastewater receiving device for receiving wastewater discharged from a filtration device, and can prevent clogging of the wastewater receiving device from affecting the working efficiency of the filtration module. Specifically, the following technical solutions are adopted:

[0032] 1. A filtration module comprising: a filtering device having a wastewater outlet for discharging wastewater containing filtered impurities; a wastewater receiving device for receiving wastewater discharged from the filtering device; a detection device for detecting whether a clog has occurred in the wastewater receiving device; The wastewater discharge pipe is for connecting the wastewater receiving device and the wastewater outlet of the filtering device, and is characterized by being provided with a wastewater discharge pipe connected to a detection branch line that guides wastewater to a detection device when clogging occurs in the wastewater receiving device.

[0033] Furthermore, the aforementioned detection device an exterior having a water receiving chamber therein; and a detection assembly for detecting the water level in said water receiving chamber, said detection assembly being capable of generating a feedback signal when said water level reaches a preset height.

[0034] Furthermore, the aforementioned detection assembly A float that is installed inside the water receiving chamber and moves up and down in response to changes in the water surface height inside the water receiving chamber; and a sensor for detecting the height position of the float, the sensor generating a feedback signal when the float rises with the water surface to a preset height.

[0035] Furthermore, the float is magnetic, the sensor is a reed switch installed on the top of the exterior, and when the float moves to a predetermined height together with the water surface, the reed switch becomes conductive due to the magnetic action of the float.

[0036] Furthermore, the detection assembly further comprises an induction section, within which a hollow passage extending vertically is formed, the float is restricted in position within the hollow passage so that it moves up and down together with the water surface, and the reed switch is installed above the induction section.

[0037] Furthermore, a sewage discharge control valve for controlling the opening and closing of the sewage discharge pipeline is installed on the sewage discharge pipeline, and one end of the detection branch is connected to the detection device, and the other end is connected between the sewage discharge control valve and the sewage receiving device.

[0038] Furthermore, the aforementioned detection device is installed at the top of the wastewater discharge pipe.

[0039] A laundry facility comprising the above-described filtration module.

[0040] The method for controlling the laundry equipment includes the laundry equipment transmitting an alarm signal when the detection device determines that a blockage has occurred in the wastewater receiving device.

[0041] Furthermore, the detection device includes an exterior having a water receiving chamber inside, a float installed inside the water receiving chamber and moving up and down in response to changes in the water level, and a sensor for detecting the height position of the float. The sensor generates a feedback signal when the float moves above a preset height, and the control method includes issuing an alarm signal if the laundry appliance continuously receives the feedback signal for more than a preset time period.

[0042] The fourth object of the present invention is to provide a filtration module, a laundry equipment, and a method for controlling the laundry equipment, which can realize self-detection of the installation status of a collection assembly inside a wastewater receiving device for receiving wastewater discharged from a filtration device, and can avoid affecting the collection effect of filtering impurities in wastewater when the collection assembly is not installed or is not installed in an appropriate position. Specifically, the following technical solutions are adopted:

[0043] 1. A filtration module comprising: a filtering device having a wastewater outlet for discharging wastewater containing filtered impurities; a wastewater receiving device having a collection assembly installed therein, the collection assembly having a collection chamber for collecting filtered impurities in the wastewater, the collection chamber communicating with a wastewater discharge port of the filtering device; and a position detection device for detecting whether the collection assembly is properly installed in the wastewater receiving device.

[0044] Furthermore, the wastewater receiving device includes a storage casing, and the collection assembly is mounted within the storage casing; The position detection device includes a detecting element / detected element mounted on the accommodation casing, and a detected element / detecting element mounted on the collection assembly.

[0045] Furthermore, the detecting element is a reed switch mounted on the receiving casing, and the detected element is a magnetic component mounted on the collecting assembly; The position detection device further includes a detection circuit, the reed switch is installed on the detection circuit, and when the collection assembly is installed in an appropriate position within the wastewater receiving device, the reed switch causes the detection circuit to conduct through the action of a magnetic component.

[0046] Furthermore, the reed switch is installed outside the casing and is closely attached to the outer wall of the casing.

[0047] Furthermore, the collection assembly includes a collection chamber wall surrounding the collection chamber, and the magnetic component is embedded within the collection chamber wall.

[0048] The apparatus further includes a sewage discharge pipe, one end of which is connected to the sewage outlet of the filtering device and the other end of which passes through the side wall of the casing and communicates with the collection chamber of the collection assembly; The detecting element is installed on the side wall of the accommodating casing through which the sewage discharge pipe passes, and the detected element is installed on the collecting assembly and is located on the side of the collecting assembly that communicates with the sewage discharge pipe.

[0049] A laundry facility comprising the above-described filtration module.

[0050] The above-mentioned laundry equipment control method, receiving a command to start a washing program; and commencing operation of a wash program if the collection assembly is determined to be properly installed.

[0051] Additionally, if it determines that the collection assembly is not properly installed, it will lock the laundry facility and generate an alarm signal.

[0052] Furthermore, the wastewater receiving device comprises a storage casing, the collection assembly is mounted inside the storage casing, the position detection device comprises a reed switch mounted on the storage casing and a magnetic component mounted on the collection assembly, and the reed switch is mounted on the detection circuit; After the washing equipment receives a command to start a washing program, if the detection circuit is in a conductive state, it determines that the collection assembly is properly installed, and / or if the detection circuit is in a disconnected state, it determines that the collection assembly is not properly installed. [Effects of the Invention]

[0053] By adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art:

[0054] The laundry equipment filtration system provided by the present invention has two filtration water channels that can be drained after filtering, thereby sufficiently removing filtered impurities from the water and reducing the content of filtered impurities in the laundry equipment's drainage water. The first filtration water channel is driven by a pump, and the second filtration water channel passes through the same pump, so that the driving force can be provided by the same pump. This increases the number of filtration water channels while eliminating the need for an additional drive unit, simplifying the power structure for the laundry equipment to perform filtration and drainage.

[0055] The laundry equipment provided by the present invention uses a wastewater receiving device to receive wastewater discharged from the filter, preventing filtered impurities contained in the wastewater from being directly discharged outside the laundry equipment along with the wastewater flow, and further avoiding the problem of microplastics in the filtered impurities entering the ecological cycle.The wastewater in the filter can be flowed into the wastewater receiving device by gravity, eliminating the need to provide additional driving force for the wastewater discharge process, eliminating the need for a corresponding driving device and preventing the problem of residual water inside the filter being unable to be discharged, especially after the laundry equipment has finished washing.

[0056] The filtration module provided by the present invention is equipped with a detection device, and the detection device and the wastewater discharge pipe are connected via a detection branch path. When a clog occurs in the wastewater receiving device that receives the wastewater discharged from the filtration device, the wastewater is guided along the detection branch path to the detection device, so that the detection device can timely detect the clogged wastewater receiving device. When the above-mentioned filtration module is applied to a laundry equipment, it can timely respond to the clogged wastewater receiving device and ensure the normal operation of the laundry equipment.

[0057] Another filtration module provided by the present invention includes a position detection device that can detect whether the collection assembly is properly installed in the wastewater receiving device. When the filtration module is applied to a laundry machine, the laundry machine will run a wash program only if it determines that the collection assembly is properly installed, thereby avoiding the problem of ineffective collection of filtered impurities due to improper installation of the collection assembly.

[0058] Specific embodiments of the present invention will now be described in more detail with reference to the drawings. [Brief explanation of the drawings]

[0059] The drawings constituting a part of the present invention are intended to provide a further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are intended to interpret the present invention and are not intended to unduly limit the present invention. Needless to say, the drawings in the following description are merely some examples, and those skilled in the art can derive other drawings based on these drawings without requiring creative efforts. The drawings are as follows:

[0060] [Figure 1] FIG. 1 is a structural schematic diagram of a laundry facility according to first to fourth embodiments of the present invention. [Figure 2] FIG. 2 is a schematic diagram of the internal structure (circulation process) of the laundry equipment according to Examples 1 to 4 of the present invention. [Figure 3] FIG. 3 is a schematic diagram of the internal structure of the laundry equipment in Examples 1 to 4 of the present invention (draining process). [Figure 4] FIG. 4 is a schematic diagram of the internal structure of the laundry equipment according to the first to fourth embodiments of the present invention (in the process of discharging wastewater). [Figure 5] FIG. 5 is a structural schematic diagram of a filtering device according to an embodiment of the present invention. [Figure 6] FIG. 6 is a structural schematic diagram of the wastewater receiving device and the pump in the first and second embodiments of the present invention. [Figure 7] FIG. 7 is a structural schematic diagram of a wastewater receiving device and a pump according to a third embodiment of the present invention. [Figure 8] FIG. 8 is a structural schematic diagram of a wastewater receiving device and a pump according to a fourth embodiment of the present invention. [Figure 9] FIG. 9 is a structural schematic diagram of a laundry facility according to a sixth embodiment of the present invention. [Figure 10] FIG. 10 is a structural schematic diagram of a filtration module and related water channels in Example 6 of the present invention (sewage receiving device in normal state). [Figure 11] FIG. 11 is an enlarged schematic view of part A in FIG. 10 of the present invention. [Figure 12] FIG. 12 is a structural schematic diagram of a filtration module and related water channels in Example 6 of the present invention (in the state where the wastewater receiving device is clogged). [Figure 13]FIG. 13 is an enlarged schematic view of part B in FIG. 12 of the present invention. [Figure 14] FIG. 14 is a flowchart of a method for controlling a laundry facility according to a sixth embodiment of the present invention. [Figure 15] FIG. 15 is a structural schematic diagram of the laundry equipment according to the eleventh and twelfth embodiments of the present invention. [Figure 16] FIG. 16 is a structural schematic diagram of the filtration module and related water channels in Examples 11 and 12 of the present invention. [Figure 17] FIG. 17 is a schematic diagram showing a wastewater receiving device according to the eleventh and twelfth embodiments of the present invention connected to a wastewater discharge pipe. [Figure 18] FIG. 18 is a schematic diagram of the installation of the position detection device in Examples 11 and 12 of the present invention (when the collection assembly is installed in an appropriate position). [Figure 19] FIG. 19 is a schematic diagram of the installation of the position detection device in Examples 11 and 12 of the present invention (when the collection assembly is not installed in an appropriate position). [Figure 20] FIG. 20 is a schematic diagram of the installation of the position detection device in the eleventh and twelfth embodiments of the present invention (when the collection assembly is not installed). [Figure 21] FIG. 21 is a flowchart of a method for controlling a laundry facility according to a twelfth embodiment of the present invention. [Figure 22] FIG. 22 is a flowchart of another method for controlling a laundry facility according to a twelfth embodiment of the present invention.

[0061] It should be explained that these drawings and written description are not intended to limit the scope of the inventive concept in any way, but rather to explain the inventive concept to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0062] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The following embodiments are for illustrating the present invention, but are not for limiting the scope of the present invention.

[0063] It should be explained in the description of the present invention that the orientations or positional relationships indicated by the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "inner," "outer," etc. are based on the orientations or positional relationships shown in the drawings, and are intended merely to facilitate the description and simplification of the present invention, and do not indicate or imply that the devices or components shown necessarily have a specific orientation or are constructed and operated in a specific orientation, and should not be understood as limiting the present invention.

[0064] As should be explained in the description of the present invention, unless otherwise clearly specified or limited, the terms "attach," "connect," and "connect" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection, and may also refer to mechanical connection, electrical connection, direct connection, or indirect connection via an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific circumstances. [Example]

[0065] As shown in Figures 1 to 5, this embodiment provides a filtration system for a laundry facility, and a laundry facility having the filtration system, which may be a laundry facility with a laundry washing function, such as a washing machine, a washer / dryer, or a laundry care machine.

[0066] The filtration system described in this embodiment includes at least a first filtration water channel and a second filtration water channel. The first filtration water channel is driven by a pump 400 and drains water from the water tank 100 of the laundry facility through at least the filter 420 and the filtration device 600 in this order, and then to the outside of the laundry facility. The second filtration water channel drains water from the filtration device 600 through at least the wastewater receiving device 500 and the pump 400 in this order, and then to the outside of the laundry facility.

[0067] In the above-mentioned means, the filtration system has at least two filtration water channels that can be drained outside the laundry equipment after filtering. When the laundry equipment drains water outside, the filter 420, filtration device 600, and wastewater receiving device 500 located on the two filtration water channels, respectively, can filter the passing wastewater, capture filtered impurities in the water, and further, can sufficiently remove filtered impurities from the water, thereby reducing the amount of filtered impurities in the laundry equipment's wastewater. In addition, the first filtration water channel is driven by pump 400, and the second filtration water channel also passes through the same pump 400, so that pump 400 can also provide driving force. When a laundry equipment has two filtration water channels that can be drained outside, there is no need to install two separate driving devices, simplifying the power structure for the laundry equipment to perform filtered drainage.

[0068] As a preferred means in this embodiment, on the first filtration water passage, the filter 420 is for filtering impurities larger than a predetermined size, and the filtration device 600 is for filtering impurities smaller than a predetermined size.

[0069] In the above-described manner, the water flowing along the first filtration channel passes through the filter 420 and the filtering device 600 in sequence, thereby achieving stepwise filtering of impurities of different size ranges, thereby achieving a better filtering effect. In addition, impurities of different size ranges are captured by different filters, which effectively avoids the problem of the filters being easily clogged when the size difference between the filter pore size on the filter and the size of the filtered impurities is relatively large, and is advantageous in improving filtering efficiency.

[0070] Specifically, filter 420 is primarily intended to provide a preliminary filtering effect on the water in water tub 100, and the filtered impurities larger than a predetermined size primarily include relatively large contaminants, such as coins, hairpins, or buttons that have fallen off clothing, that are brought into water tub 100 along with the laundry. This prevents the above-mentioned foreign objects from being included in the water flow after passing through filter 420, and prevents the problem of the above-mentioned foreign objects clogging the downstream piping of the first filtration water channel or filtration device 600, which could cause the filtration function of the laundry equipment to malfunction.

[0071] After the filter 420 completes the preliminary filtration, the filtration device 600 performs further filtration, removing impurities of a predetermined size or smaller, such as lint that has fallen off the surface of the laundry during the washing process. Specifically, to ensure that the wastewater stream from the laundry facility contains as few microplastics as possible, which are harmful to the ecological environment, the filtration device 600 can filter impurities larger than 50 μm in size, which may include microplastics. In particular, the impurities may include plastic fibers with lengths greater than 50 μm and diameters ranging from 10 to 1000 μm. Preferably, the plastic fibers have lengths ranging from 400 to 600 μm, with the most common length being 500 μm ± 50 μm. The diameter of these plastic fibers is preferably 10 to 50 μm, with the most common diameter being 17 μm ± 2 μm.

[0072] In a further feature of this embodiment, the second filtration water channel passes through at least pump 400 before merging with the first filtration water channel and discharging the water to the outside. That is, the first filtration water channel and the second filtration water channel share a portion of the water channel structure. More specifically, a pipe that directly communicates with the exterior space of the laundry equipment and directs the drainage water flow outside the laundry equipment is shared by the two filtration water channels. In this way, the laundry equipment only needs to install one drainage pipe 250 extending outside of housing 10, making it easier for users to introduce the laundry equipment's wastewater into the home's drainage system, such as into a drain outlet.

[0073] Furthermore, on the first filtration water channel, the pump 400 is installed between the water tank 100 and the filtration device 600. In the second filtration water channel, the wastewater receiving device 500 is connected to the pump 400, so that the second filtration water channel merges into the first filtration water channel at the pump 400.

[0074] In the specific implementation of this embodiment, the filter 420 is integrally installed inside the pump 400, and the first filtration water passage includes at least: a water tank drain pipe 260 for directing water from the water tank 100 to the pump 400; an intermediate pipe 200 for conveying water from the pump 400 to the filtration device 600; and a drain pipe 250 for draining water to the outside of the laundry facility.

[0075] The wastewater receiving device 500 is connected to the internal chamber of the pump 400, and the water filtered by the wastewater receiving device 500 enters the pump 400 and, by the driving action of the pump 400, is further discharged outside the laundry equipment along the intermediate pipe 220 of the first filtered water channel and the drain pipe 250.

[0076] In the above means, the filter 420 is installed inside the pump 400, and water that enters the pump 400 along the first filtration water channel is filtered by the filter 420 to remove impurities larger than a predetermined size, and then the water is forced out of the outlet end of the pump 400, transported along the intermediate pipe 220 to the filtration device 600, and finally discharged outside the laundry facility along the drain pipe 250. The wastewater receiving device 500 can direct the filtered water into the pump 400 along the second filtration water channel, and the pump 400 forces the received water out along the intermediate pipe 220 and the drain pipe 250.

[0077] In this embodiment, the wastewater receiving device 500 specifically includes a casing and a lint collection assembly 560 installed inside the casing. The lint collection assembly 560 filters the water flowing through the wastewater receiving device 500 and simultaneously collects filtered impurities contained in the water.

[0078] Specifically, the lint collecting assembly 560 has a collection chamber for collecting filtered impurities. The wastewater receiving device 500 receives wastewater discharged from the filter device 600 along the second filtered water passage. The received water directly enters the collection chamber of the lint collecting assembly 560 and, after being filtered by the lint collecting assembly 560, flows outside the lint collecting assembly 560 and can be sent to the pump 400, and the filtered impurities are collected in the collection chamber.

[0079] As shown in Figures 2 to 6, in a further aspect of this embodiment, the pump 400 comprises a pump body 410, and the wastewater receiving device 500 is installed in contact with the pump body 410 and above the pump body 410.

[0080] Specifically, the pump body 410 has a water inlet end communicating with the water tank 100 and a water outlet end connected to the intermediate pipe 220. An opening is provided at the top of the pump body 410, which communicates with the inside of the casing of the wastewater receiving device 500 and is used to receive the wastewater from the wastewater receiving device 500.

[0081] Preferably, the pump body 410 is installed integrally with the casing of the wastewater receiving device 500, and the internal spaces of the two are in communication with each other. After the wastewater from the filtering device 600 enters the wastewater receiving device 500, it is filtered by the lint collecting assembly 560 inside the wastewater receiving device 500. The filtered water is then forced by gravity into the pump body 410 of the pump 400, and is then pumped by the pump 400 into the drain pipe 250 so that it can be discharged outside the laundry facility.

[0082] In a further feature of this embodiment, filtration device 600 has a self-cleaning function, so that the user does not need to remove filtration device 600 from the laundry equipment and clean it manually; filtration device 600 can self-clean and discharge filtered impurities accumulated during the filtration process together with the water flow. Sewage outlet 6103 is provided on filtration device 600, and sewage containing filtered impurities after self-cleaning can be discharged through sewage outlet 6103, preventing the filtered impurities from accumulating in large quantities inside filtration device 600 and affecting filtration efficiency.

[0083] Furthermore, the filter 420 and the wastewater receiving device 500 need to be periodically cleaned by the user. Specifically, the filter 420 can be detachably mounted inside the pump 400, and the lint collection assembly 560 can be detachably mounted inside the casing of the wastewater receiving device 500. An openable lower opening 18 is provided on the front wall 12 of the housing 10 in correspondence with the mounting positions of the filter 420 and the wastewater receiving device 500, so that the user can open the lower opening 18 to remove the filter 420 from inside the pump 400 or take out the lint collection assembly 560 from inside the wastewater receiving device 500 for cleaning.

[0084] In this embodiment, the second filtration waterway is for filtering the wastewater discharged by the filtration device 600 after self-cleaning and discharging it outside the laundry facility. Specifically, the filtration device 600 discharges wastewater containing filtered impurities from the wastewater outlet 6103, and the wastewater enters the wastewater receiving device 500 for filtration, and the filtered impurities are collected in the lint collecting assembly 560. Only the filtered wastewater without filtered impurities can enter the pump 400 and be pumped out by the pump 400 to be discharged outside the laundry facility.

[0085] The above configuration enables the filtration device 600 to achieve the objective of discharging filtered impurities without requiring user intervention, and also ensures that the filtered impurities discharged from the filtration device 600 are not directly discharged together with the wastewater flow of the laundry equipment, thereby avoiding the problem of microplastics in the filtered impurities entering the ecological environment.

[0086] In the above-described manner, the wastewater receiving device 500 achieves the ultimate goal of collecting filtered impurities. As described above, the filtering device 600 in this embodiment can filter impurities larger than 50 μm in size, including microplastics, particularly plastic fibers with lengths larger than 50 μm and diameters of 10 to 1000 μm. To ensure that the lint collecting assembly 560 can adequately collect microplastics or plastic fibers of the above sizes contained in the wastewater discharged from the filtering device 600, the size of the filtered impurities that the lint collecting assembly 560 can collect when filtering the wastewater must be at least equal to or larger than the size of the filtered impurities that the filtering device 600 can filter. For example, the filtering device 600 can filter impurities larger than 50 μm in size. In this case, the lint collecting assembly 560 must ensure that impurities larger than 50 μm in size cannot pass through when filtering the received wastewater. Preferably, even filtered impurities slightly smaller than 50 μm in size cannot pass through, ensuring that as many microplastics in the wastewater as possible are collected within the lint collection assembly 560.

[0087] In the specific implementation of this embodiment, a filter is installed inside the filtering device 600 to achieve filtration, and the lint collecting assembly 560 has a screen surrounding the collection chamber, and the wastewater discharged from the filtering device 600 enters the collection chamber of the lint collecting assembly 560, and the filtration of the wastewater and collection of filtered impurities are achieved by the screen.

[0088] Furthermore, in order to achieve the filtration and removal of microplastics of the aforementioned size, the filter inside the filtration device 600 is selected to have a mesh size of 20 to 500. Furthermore, to ensure that the wastewater receiving device 500 can collect as many microplastics contained in the wastewater as possible using the lint collecting assembly 560 and to ensure that the microplastics filtered by the filtration device 600 do not pass through the lint collecting assembly 560 within the wastewater receiving device 500, the pore size of the screen inside the lint collecting assembly 560 is at least equal to or smaller than the pore size of the filter inside the filtration device 600. In other words, the mesh number of the screen inside the lint collecting assembly 560 is equal to or larger than the mesh number of the filter inside the filtration device 600, which is 20 to 500 mesh.

[0089] Through extensive preliminary testing of different types of clothing and different washing programs, it was found that by setting the mesh count of the screen in the lint collection assembly 560 and the mesh count of the filter in the filtration device 600 within the above ranges described in this example, plastic fibers of the above dimensions can be filtered out from the wash water and the washing equipment's wastewater, ultimately collecting microplastic particles that account for more than 80% of the total content in the water in the wastewater receiving device 500. This significantly reduces the microplastic content in the washing equipment's final wastewater stream, allowing it to meet the direct emission standards.

[0090] In the detailed means of this embodiment, in order to realize the self-cleaning function of the filtration device 600, the filtration device 600 has: a filtering chamber 610 having a water inlet 6101, a filtered water outlet 6102, and a wastewater outlet 6103; a filtering mechanism 620 rotatably installed inside the filtering chamber 610 and having a water outlet joint 621 rotatably and sealingly connected to the inner wall of the filtered water outlet 6102; and a drive mechanism 660 connected to the filtration mechanism 620 for rotating the filtration mechanism 620 within the filtration chamber 610 .

[0091] The filtering mechanism 620 includes a filter frame and a filter covering the surface of the filter frame, and divides the interior of the filtering chamber 610 into an external chamber and an internal chamber, of which the water inlet 6101 is connected to the external chamber. The washing water to be filtered in the water tub 100 enters the external chamber through the water inlet 6101 and enters the internal chamber through the filtering mechanism 620 to be filtered. Impurities contained in the water adhere to the outer wall of the filtering mechanism 620, and the purified water from which the impurities have been filtered out flows out through the water outlet joint 621 connected to the internal chamber, and finally flows out of the filtering chamber 610 from the filtered water outlet 6102.

[0092] When it is necessary to clean the filtered impurities inside the filtration device 600, the driving mechanism 660, for example, a motor, rotates the filtration mechanism 620, stirring the water flow inside the filtration chamber 610, and the filtered impurities adhering to the outer wall of the filtration mechanism 620 are peeled off by the dual action of centrifugal force and the violent vibration of the water flow, dissolved into the water inside the filtration chamber 610, and further discharged together with the water flow from the wastewater discharge outlet 6103 on the filtration chamber 610.

[0093] In the above-mentioned method, the installation of the rotatable filtering mechanism 620 enables the filtering device 600 to achieve self-cleaning of filtered impurities, and the filtering impurity removal efficiency is high. In normal use, the user does not need to remove the filtering device 600 from the laundry equipment to clean it manually, which makes the laundry equipment more convenient to use.

[0094] In a further aspect of this embodiment, the filtration system of the laundry equipment further includes a wastewater discharge control device for controlling the opening and closing of the second filtration water channel. When the filtration device 600 filters water, the wastewater discharge control device blocks the second filtration water channel, so that all water entering the filtration device 600 can flow out from the filtrate outlet 6102 after filtration, ensuring that the water to be filtered does not flow directly along the second filtration water channel to the wastewater receiving device 500 after entering the filtration device 600. Only when the filtration device 600 needs to perform self-cleaning and discharge wastewater is the wastewater discharge control device controlled to open the second filtration water channel.

[0095] Furthermore, the second filtration water passage includes a wastewater discharge pipe 240 for conducting water from the filter 600 to the wastewater receiving device 500. The wastewater discharge control device includes a wastewater discharge control valve 241 installed on the wastewater discharge pipe 240. When the filter 600 filters water, the wastewater discharge control valve 241 is closed and the wastewater discharge pipe 240 is blocked, so that the filter 600 does not discharge water from the wastewater outlet 6103. When the filter 600 needs to discharge wastewater, the wastewater discharge control valve 241 is opened, thereby allowing the wastewater discharge pipe 240 to connect the filter 600 and the wastewater receiving device 500, and allowing the wastewater to flow from the filter 600 into the wastewater receiving device 500.

[0096] In a preferred implementation of this embodiment, the wastewater receiving device 500 is installed below the filter device 600, and the filter device 600 drains water into the wastewater receiving device 500 along the wastewater discharge line 240 under the influence of gravity.

[0097] More preferably, the filtration device 600 is installed above the height of the central axis of the aquarium 100, and the wastewater receiving device 500 is installed below the height of the central axis of the aquarium 100. Furthermore, in this embodiment, the wastewater receiving device 500 is directly connected to the pump 400, and the casing of the wastewater receiving device 500 is installed integrally with the pump body 410 of the pump 400, so that the pump 400 and the wastewater receiving device 500 are installed below the height of the central axis of the aquarium 100.

[0098] More preferably, the wastewater outlet 6103 is located at the bottom of the filtering chamber 610 of the filtering device 600, to ensure that the wastewater in the filtering chamber 610 can be sufficiently discharged through the wastewater outlet 6103 and avoid residue.

[0099] In the above-described manner, the wastewater in filtration device 600 flows into wastewater receiving device 500 by gravity, without the need for any additional driving force. In the second filtration water channel, pump 400 mainly provides driving force for draining water out of wastewater receiving device 500, but draining water from filtration device 600 into wastewater receiving device 500 can be performed without relying on external driving force. In particular, by maintaining wastewater discharge control valve 241 in an open state for a certain period of time when the laundry equipment is about to finish operating the current washing program or after it has finished, residual water in filtration device 600 can also be sufficiently discharged from wastewater discharge port 6103 by gravity, effectively preventing the problem of residual water remaining in filtration device 600 after the laundry equipment has finished operating.

[0100] In this embodiment, the housing 10 of the laundry facility has a top wall 11 and a bottom wall 17 that are installed opposite each other, and four side walls that surround the top wall 11 and the bottom wall 17. The water tub 100 is installed inside the housing 10, and the central axis of the water tub 100 is installed along the front-to-rear direction of the housing 10.

[0101] In a preferred embodiment of the present invention, a first mounting space M is formed by the right side wall 14, top wall 11 of the housing 10, and the cylindrical wall 104 of the water tank 100. At the same time, a second mounting space N is formed by the right side wall 14, bottom wall 17 of the housing 10, and the cylindrical wall 104 of the water tank 100. The filtration device 600 is installed in the first mounting space M located in the upper right region of the housing 10, and the pump 400 and the wastewater receiving device 500 are installed in the second mounting space N located in the lower right region of the housing 10.

[0102] In the above-mentioned means, a first mounting space M having a substantially triangular prism shape is formed in the upper right region of housing 10 between water tub 100 and housing 10, and a second mounting space N having a substantially triangular prism shape is formed in the lower right region of housing 10. Filtering device 600 and wastewater receiving device 500 are installed in the first mounting space M and second mounting space N, respectively, and wastewater receiving device 500 is located below filtering device 600, thereby achieving the purpose of automatically discharging wastewater using gravity. In addition, the internal space of housing 10 can be fully utilized, making the internal structure of housing 10 of the washing machine compact, which is advantageous for ensuring that water tub 100 has a larger capacity while reducing the overall volume of the washing machine. The filtration device 600 and the wastewater receiving device 500 are installed on the same side of the water tank 100 (the right side of the water tank 100 in Figures 2 to 4), and the wastewater discharge pipeline 240 can be installed extending approximately vertically, resulting in a simple structure and high efficiency in discharging wastewater out of the filtration device 600 by gravity.

[0103] More preferably, the laundry equipment further includes a detergent case 300 for automatically dispensing detergent into the water tub 100. The detergent case 300 is installed in the upper left region of the housing 10, and more specifically, is attached to the space formed by the top wall 11 and left side wall 13 of the housing 10 and the cylindrical wall 104 of the water tub 100.

[0104] In a further aspect of this embodiment, the filtration system of the aforementioned laundry facility further comprises a third filtration water passage driven by pump 400, which passes from water tank 100 through at least filter 420 and filtration device 600 in this order, and then returns to the aforementioned water tank 100.

[0105] Furthermore, the filtration system further includes a switching device 270 for controlling the first filtration water passage and the third filtration water passage to be selectively opened.

[0106] In the above means, the first filtration water channel is used to realize the washing equipment's drainage filtering function, filtering out impurities before discharging the drainage water. The third filtration water channel is used to realize the washing equipment's circulating filtering function, specifically, to continuously circulate water in water tub 100 through filter 420 and filtration device 600 during the washing process, reducing impurities such as lint in the water and preventing the lint from adhering to clothes and affecting the washing effect. The switching device 270 controls the first filtration water channel and the third filtration water channel to be selectively open, allowing the washing equipment to selectively operate the drainage filtering function and the circulating filtering function.

[0107] The first filtration waterway and the third filtration waterway share a common pipe structure in the section from the water tank 100 to the filtration device 600, and both can be provided with driving force using the pump 400. That is, the pump 400, the filter 420, and the filtration device 600 of the filtration system can all be used for drainage filtration and also for circulation filtration, which simplifies the internal structure of the laundry equipment and eliminates the need to install excessive filtration devices or driving devices and the hassle of overly complicated waterway design.

[0108] In a further feature of this embodiment, the third filtration water passage includes a return pipe 230 for returning water to the aquarium 100. The switching device 270 is connected to the filtration device 600, the drain pipe 250, and the return pipe 230, respectively, and controls the drain pipe 250 and the return pipe 230 to be selectively connected to the filtration device 600.

[0109] The specific waterway structure in this embodiment is as follows: The bottom of the aquarium 100 is connected to one end of the aquarium drain pipe 260, and the other end of the aquarium drain pipe 260 is connected to the water inlet of the pump 400. The water outlet of the pump 400 is connected to one end of the intermediate pipe 220, and the other end of the intermediate pipe 220 is connected to the water inlet 6101 of the filtration device 600. The filtered water outlet 6102 of the filtration device 600 is connected to the water inlet of the switching device 270 via the connecting pipe 280. One water outlet of the switching device 270 is connected to the return pipe 230, and the other water outlet is connected to the drain pipe 250. A movable switching mechanism 271 is installed inside the switching device 270, and by movement of the switching mechanism 271, the two water outlets are selectively connected to the water inlet, thereby controlling the return pipe 230 and the drain pipe 250 to be selectively connected to the filtered water outlet 6102 of the filtration device 600.

[0110] In the above-described means, when switching device 270 opens return pipe 230 and filtered water outlet 6102, pump 400 operates to draw water from water tub 100, pump it to filtration device 600 for filtering, and then return it to water tub 100 along return pipe 230 after filtration, thereby circulating and filtering the wash water during the washing process of the laundry equipment, thereby realizing the circulating filtering function of the laundry equipment. When switching device 270 opens drain pipe 250 and filtered water outlet 6102, pump 400 operates to pump the water from water tub 100 to filtration device 600, and the filtered water is discharged along drain pipe 250. As a result, the drain water flow of the laundry equipment is filtered and then discharged to the outside, thereby realizing the drain filtering function of the laundry equipment.

[0111] Hereinafter, the operation process of the laundry facility in this embodiment will be described in detail with reference to FIGS.

[0112] 2 illustrates the circulation process of washing water during the washing and / or rinsing stages of a laundry machine. Specifically, when water is poured into water tub 100 and laundry is being washed, switching device 270 opens connecting line 280 and return line 230, and wastewater discharge control valve 241 is closed, blocking wastewater discharge line 240. Pump 400 operates to draw wash water from water tub 100 along water tub drain line 260. The wash water passes through filter 420 within pump 400 for preliminary filtration, and is then pumped along intermediate line 220 to filtration device 600 for further filtration. The filtered wash water flows out of filtration device 600 through filtered water outlet 6102, flows along connecting line 280 to switching device 270, and finally returns to water tub 100 via return line 230.

[0113] 3 shows the draining process of a laundry machine. Specifically, when the laundry machine needs to drain, switching device 270 switches connecting pipe 280 and drain pipe 250 to an open state, and wastewater discharge control valve 241 remains closed. Pump 400 is controlled to operate, and wash water is drawn out of water tub 100 along water tub drain pipe 260. The wash water passes through filter 420 inside pump 400 for preliminary filtration, and then is pumped along intermediate pipe 220 to filtration device 600 for further filtration. The filtered wash water flows out of filtered water outlet 6102 of filtration device 600, flows along connecting pipe 280 to switching device 270, and finally is discharged out of the laundry machine via drain pipe 250.

[0114] FIG. 4 shows a wastewater discharge process in which filtration device 600 self-cleans and discharges wastewater containing filtered impurities in a laundry facility. Specifically, referring to FIG. 5, drive mechanism 660 operates to rotate filtration mechanism 620 in filtration chamber 610, causing centrifugal force and the violent vibration of the water flow to separate impurities adhering to the outer wall of filtration mechanism 620. The violent vibration of the water flow also causes impurities that may be adhering to the inner wall of filtration chamber 610 to fall off and even dissolve in the water within filtration chamber 610. When wastewater discharge control valve 241 is opened, the wastewater containing filtered impurities in filtration chamber 610 flows out of wastewater discharge port 6103 under the force of gravity and flows along wastewater discharge pipe 240 into wastewater receiving device 500. Wastewater entering the wastewater receiving device 500 is filtered by the lint collecting assembly 560, and the filtered impurities in the wastewater are collected inside the lint collecting assembly 560, while the wastewater without filtered impurities is sent into the pump 400. The switching device 270 is controlled to open the communication pipe 280 and the drain pipe 250, and the pump 400 is operated, so that the wastewater from which the filtered impurities have been removed can be discharged to the outside of the laundry facility along the intermediate pipe 220, the communication pipe 280, and the drain pipe 250 in that order.

[0115] In this embodiment, the laundry equipment filtration system is equipped with a total of three filtration channels. The first filtration channel filters wash water discharged from the water tank 100 and then discharges it outside the laundry equipment. The filtration device 600 discharges wastewater containing filtered impurities after self-cleaning along the second filtration channel. The wastewater is then filtered through the wastewater receiving device 500, where it is collected and further discharged outside. In this way, the laundry equipment's wastewater stream contains almost no filtered impurities, avoiding the problem of microplastics contained in the filtered impurities being directly discharged with the laundry equipment's wastewater.

[0116] The third filtration channel is used to implement the washing machine's circulating filtration function, thereby reducing the lint content in the wash water and improving the washing effect of clothes. In the above-mentioned filtration system, some components are shared by at least two of the three filtration channels, thereby achieving the goal of simplifying the filtration system's structure as much as possible. This simplifies the internal structure of the washing machine, avoiding the need for complex structures to occupy excessive installation space, while reducing the number of drive units and filtration devices required, which is advantageous in reducing the production costs of the washing machine. [Example]

[0117] As shown in Figures 1 to 5, this embodiment provides a laundry facility including a water tub 100 and a filtration device 600 for receiving and filtering water in the water tub 100. The laundry facility may be a laundry facility with a clothing washing function, such as a washing machine, a washer / dryer, or a clothing care machine.

[0118] Specifically, the filtration device 600 has a self-cleaning function, eliminating the need for the user to remove the filtration device 600 and clean it manually. The filtration device 600 performs self-cleaning and can discharge impurities accumulated during the filtration process along with the water flow. A wastewater outlet 6103 is provided on the filtration device 600, through which wastewater containing filtered impurities after self-cleaning can be discharged, preventing the impurities from accumulating in large quantities inside the filtration device 600 and affecting filtration efficiency.

[0119] The laundry facility of this embodiment further includes a wastewater receiving device 500 that is connected to the wastewater outlet 6103 of the filtering device 600 and receives the wastewater discharged from the filtering device 600. This avoids the problem of the wastewater discharged from the filtering device 600 directly joining the wastewater flow of the laundry facility and being discharged outside, thereby preventing microplastics in the filtered impurities from entering the biological circulation along with the wastewater flow and causing harm to the ecological environment and human health.

[0120] In this embodiment, the wastewater receiving device 500 is installed at a position lower than the height of the wastewater outlet 6103 of the filtering device 600. In this case, the wastewater containing filtered impurities in the filtering device 600 can be drained from the wastewater outlet 6103 and then flow into the wastewater receiving device 500 by gravity, without needing to rely on an additional driving force. For the wastewater discharge process in which the filtering device 600 discharges the wastewater, the filtering device 600 can realize the function of automatically discharging the filtered impurities without separately installing a driving device inside the laundry equipment.

[0121] Furthermore, in this embodiment, wastewater outlet 6103 is installed in the bottom region of filtration device 600 and drains water downward. When the washing equipment stops transporting wash water in water tub 100 to filtration device 600 for filtration, such as after the final drain of the current washing program is completed, the wash water remaining in filtration device 600 can be drained into wastewater receiving device 500 through wastewater outlet 6103 by gravity, preventing the problem of wash water remaining in filtration device 600.

[0122] In a further feature of this embodiment, the installation position of the filter device 600 is higher than the height of the central axis of the water tank 100, and the installation position of the wastewater receiving device 500 is lower than the height of the central axis of the water tank 100. A wastewater discharge pipe 240 is installed between the filter device 600 and the wastewater receiving device 500 to realize communication, and the wastewater in the filter device 600 flows into the wastewater receiving device 500 along the wastewater discharge pipe 240 due to the action of gravity.

[0123] Preferably, a wastewater discharge control valve 241 is installed on the wastewater discharge pipe 240. When the filter 600 receives and filters water from the water tub 100, the wastewater discharge control valve 241 is closed and the wastewater discharge pipe 240 is blocked, ensuring that the wash water entering the filter 600 is discharged directly from the wastewater discharge port 6103 by gravity and sent out after filtering without flowing along the wastewater discharge pipe 240 into the wastewater receiving device 500. Only when the filter 600 needs to discharge the filtered impurities accumulated therein, the wastewater discharge control valve 241 is opened and the wastewater containing the filtered impurities in the filter 600 is flowed along the wastewater discharge pipe 240 into the wastewater receiving device 500.

[0124] Specifically, the filtration device 600 of this embodiment has the following features: a filtering chamber 610 having a water inlet 6101, a filtered water outlet 6402, and a wastewater outlet 6103; a filtering mechanism 620 rotatably installed inside the filtering chamber 610 and having a water outlet joint 621 rotatably and sealingly connected to the inner wall of the filtered water outlet 6102; and a drive mechanism 660 connected to the filtration mechanism 620 for rotating the filtration mechanism 620 within the filtration chamber 610 .

[0125] The filtering mechanism 620 includes a filter frame and a filter covering the surface of the filter frame, and divides the interior of the filtering chamber 610 into an external chamber and an internal chamber, of which the water inlet 6101 is connected to the external chamber. The washing water to be filtered in the water tub 100 enters the external chamber through the water inlet 6101 and then enters the internal chamber through the filtering mechanism 620 to be filtered. Impurities contained in the water adhere to the outer wall of the filtering mechanism 620, and the purified water from which the impurities have been filtered out flows out through the water outlet joint 621 connected to the internal chamber, and finally flows out of the filtering chamber 610 from the filtered water outlet 6102.

[0126] When it is necessary to clean the filtered impurities inside the filtration device 600, the driving mechanism 660, for example, a motor, rotates the filtration mechanism 620, stirring the water flow inside the filtration chamber 610, and the filtered impurities adhering to the outer wall of the filtration mechanism 620 are peeled off by the dual action of centrifugal force and the violent vibration of the water flow, dissolved into the water inside the filtration chamber 610, and further discharged together with the water flow from the wastewater discharge outlet 6103 on the filtration chamber 610.

[0127] In the above-mentioned method, the installation of the rotatable filtering mechanism 620 enables the filtering device 600 to achieve self-cleaning of filtered impurities, and the filtering impurity removal efficiency is high. In normal use, the user does not need to remove the filtering device 600 from the laundry equipment to clean it manually, which makes the laundry equipment more convenient to use.

[0128] The laundry equipment of this embodiment further includes a housing 10, which specifically includes a top wall 11 and a bottom wall 17 disposed opposite each other, and four side walls surrounding the top wall 11 and the bottom wall 17. A water tub 100 is disposed inside the housing 10, and the central axis of the water tub 100 is disposed along the front-to-rear direction of the housing 10.

[0129] In a preferred embodiment of the present invention, the right side wall 14, top wall 11 of the housing 10, and cylindrical wall 104 of the water tank 100 form a first mounting space M. At the same time, the right side wall 14, bottom wall 17 of the housing 10, and cylindrical wall 104 of the water tank 100 form a second mounting space N. The filtration device 600 is installed in the first mounting space M located in the upper right region of the housing 10, and the wastewater receiving device 500 is installed in the second mounting space N located in the lower right region of the housing 10.

[0130] In the above-mentioned means, a first mounting space M having a substantially triangular prism shape is formed in the upper right region of housing 10 between water tub 100 and housing 10, and a second mounting space N having a substantially triangular prism shape is also formed in the lower right region of housing 10. Filtering device 600 and wastewater receiving device 500 are installed in the first mounting space M and second mounting space N, respectively, and wastewater receiving device 500 is lower than wastewater outlet 6103 of filtering device 600, thereby achieving the purpose of automatically discharging wastewater using gravity. In addition, the internal space of housing 10 can be fully utilized, making the internal structure of housing 10 of the laundry equipment compact, which is advantageous for ensuring that water tub 100 has a larger capacity while reducing the volume of the entire laundry equipment. The filtration device 600 and the wastewater receiving device 500 are installed on the same side of the water tank 100 (the right side of the water tank 100 in Figures 2 to 4), and the wastewater discharge pipeline 240 can be installed extending approximately vertically, resulting in a simple structure and high efficiency in discharging wastewater out of the filtration device 600 by gravity.

[0131] More preferably, the laundry equipment further includes a detergent case 300 for automatically dispensing detergent into the water tub 100. The detergent case 300 is installed in the upper left region of the housing 10, and more specifically, is attached to the space formed by the top wall 11 and left side wall 13 of the housing 10 and the cylindrical wall 104 of the water tub 100.

[0132] In a further feature of this embodiment, the wastewater receiving device 500 is provided with a lint collection assembly 560, and the wastewater received by the wastewater receiving device 500 is filtered by the lint collection assembly 560, which can also simultaneously collect filtered impurities contained in the wastewater.

[0133] Specifically, the wastewater receiving device 500 includes a casing, and the lint collecting assembly 560 is disposed inside the casing and has a collection chamber for collecting filtered impurities. The wastewater discharged from the filter 600 flows into the wastewater receiving device 500 along the wastewater discharge line 240, enters the collection chamber of the lint collecting assembly 560, and is filtered by the lint collecting assembly 560 before flowing out of the lint collecting assembly 560, where the filtered impurities are collected in the collection chamber.

[0134] In detail, the lint collecting assembly 560 has a screen surrounding the aforementioned collection chamber, and the wastewater discharged from the filtration device 600 enters the collection chamber of the lint collecting assembly 560, and the aforementioned screen filters the wastewater and collects the filtered impurities.

[0135] In the above-mentioned means, after the wastewater enters the wastewater receiving device 500, it is filtered by the lint collecting assembly 560, thereby separating the filtered impurities from the wastewater, making it convenient for users to directly dispose of the collected filtered impurities, and avoiding the situation where the filtered impurities are mixed into the water and cannot be effectively treated.

[0136] In a preferred embodiment of this embodiment, the lint collection assembly 560 is removably attached to the inside of the wastewater receiving device 500, allowing a user to remove the lint collection assembly 560 from the wastewater receiving device 500 and clean the filtered impurities collected therein. After cleaning is complete, the lint collection assembly 560 is reattached to the wastewater receiving device 500, so that the wastewater receiving device 500 can continue to receive wastewater discharged from the filtering device 600 the next time the washing machine runs a wash program.

[0137] Specifically, in this embodiment, an openable lower opening 18 is provided on the front wall 12 of the housing 10, and the installation position of the lower opening 18 corresponds to the wastewater receiving device 500 so that the wastewater receiving device 500 is located just inside the lower opening 18. When the lint collecting assembly 560 needs to be manually cleaned, the user can open the lower opening 18 and remove the lint collecting assembly 560 from the wastewater receiving device 500.

[0138] In a further aspect of this embodiment, the washing machine further comprises a drainage device connected to the water tank 100, and the washing machine drains water to the outside through the drainage device. The wastewater receiving device 500 is connected to the drainage device, and the filtered wastewater can be discharged to the outside of the washing machine through the drainage device.

[0139] After filtering in the wastewater receiving device 500, the filtered impurities are no longer contained in the wastewater, and it is directly discharged outside the laundry equipment via the drainage system, eliminating the problem of microplastics entering the ecological environment. Furthermore, the wastewater receiving device 500 can periodically or in real time discharge the filtered wastewater, eliminating the need for the user to completely remove the wastewater receiving device 500 from the laundry equipment and tilt the wastewater inside to discard it, making it more convenient for the user. Furthermore, because wastewater does not accumulate in large quantities within the wastewater receiving device 500, the volume requirements for the wastewater receiving device 500 are reduced, allowing the volume of the wastewater receiving device 500 to be reduced.

[0140] Furthermore, the aforementioned drainage device comprises a pump 400 and a drainage pipe 250. The water inlet of the pump 400 is connected to the water tub 100, so that water can be drawn out of the water tub 100 and forced out from the water outlet of the pump 400. The drainage pipe 250 is connected to the outside of the laundry equipment, so that water forced out by the pump 400 can be received and discharged outside the laundry equipment.

[0141] In this embodiment, the wastewater receiving device 500 is connected to the pump 400, and the filtered wastewater in the wastewater receiving device 500 flows into the pump 400 and can be pumped from the pump 400 to the drain pipe 250 for discharge. On the one hand, the pump 400 is generally installed below the water tub 100, and therefore, in this embodiment, it can be installed relatively close to the wastewater receiving device 500, making it easy for the wastewater receiving device 500 to directly flow the filtered wastewater into the pump 400. On the other hand, the pump 400 provides driving force for draining the laundry equipment, and the wastewater receiving device 500 is installed in communication with the pump 400, so that the pump 400 can be used to provide auxiliary driving force for draining the wastewater receiving device 500, ensuring that the filtered wastewater received by the wastewater receiving device 500 can be sufficiently flowed into the pump 400.

[0142] As shown in Figures 2 to 6, in a further aspect of this embodiment, the pump 400 comprises a pump body 410, and the wastewater receiving device 500 is installed in contact with the pump body 410 and above the pump body 410.

[0143] Specifically, the pump body 410 has a water inlet end that communicates with the water tank 100, and a water outlet end that presses water out to the pump 400. An opening is provided at the top of the pump body 410 that communicates with the inside of the casing of the wastewater receiving device 500 and that receives the wastewater from the wastewater receiving device 500.

[0144] Preferably, the pump body 410 is installed integrally with the casing of the wastewater receiving device 500, and the internal spaces of the two are in communication with each other. After the wastewater discharged from the filtering device 600 enters the wastewater receiving device 500, it is filtered by the lint collecting assembly 560 inside the wastewater receiving device 500. The filtered wastewater is then forced by gravity into the pump body 410 of the pump 400, and is then pumped by the pump 400 to the drain pipe 250 so that it can be discharged outside the laundry facility.

[0145] Furthermore, the outlet end of pump 400 is connected to water inlet 6101 of filtration device 600, and drainage pipe 250 is connected to filtered water outlet 6102 of filtration device 600, and the water pressed out from pump 400 is filtered by filtration device 600 and then discharged outside the laundry equipment along drainage pipe 250.

[0146] In the above-mentioned method, the wastewater flow of the laundry facility is first filtered by the filtering device 600, and after filtering impurities are removed, it is discharged to the outside of the laundry facility along the drainage pipe 250. In this way, it is ensured that there are no filtered impurities in the wastewater flow of the laundry facility, and the problem of small lint that may be present in the filtered impurities entering the ecological cycle together with the wastewater flow is avoided.

[0147] In a further aspect of this embodiment, the aforementioned laundry equipment further comprises a return pipe 230 communicating with the water tub 100 and a switching device 270 communicating with the filtered water outlet 6102 of the filtration device 600. The switching device 270 controls the return pipe 230 and the drain pipe 250 to alternatively communicate with the filtered water outlet 6102 of the filtration device 600.

[0148] Specifically, one end of aquarium drain pipe 260 is connected to the bottom of aquarium 100, and the other end of aquarium drain pipe 260 is connected to the water inlet of pump 400. The water outlet of pump 400 is connected to one end of intermediate pipe 220, and the other end of intermediate pipe 220 is connected to water inlet 6101 of filtration device 600. Filtered water outlet 6102 of filtration device 600 is connected to the water inlet of switching device 270 via connecting pipe 280, and return pipe 230 is connected to one water outlet of switching device 270, and drain pipe 250 is connected to the other water outlet. A movable switching mechanism 271 is installed inside the switching device 270, and by movement of the switching mechanism 271, the two water outlets are selectively connected to the water inlet, thereby controlling the return pipe 230 and the drain pipe 250 to be selectively connected to the filtered water outlet 6102 of the filtration device 600.

[0149] In the above-described means, when switching device 270 opens return pipe 230 and filtered water outlet 6102, pump 400 operates to draw water from water tub 100, pump it to filtration device 600 for filtering, and then return it to water tub 100 along return pipe 230 after filtration. This allows the wash water to be circulated and filtered during the washing process of the laundry equipment, thereby realizing the circulating filtering function of the laundry equipment. When switching device 270 opens drain pipe 250 and filtered water outlet 6102, pump 400 operates to pump water from water tub 100 to filtration device 600, and the filtered water is discharged along drain pipe 250. This allows the drain water flow of the laundry equipment to be filtered and then discharged to the outside, thereby realizing the drain filtering function of the laundry equipment.

[0150] The circulation filtration and drainage filtration of the laundry equipment are driven by the same pump 400 and achieve the filtering effect using the same filtration device 600, while also sharing some of the piping structure, which is advantageous in simplifying the waterway structure inside the laundry equipment. The simplified waterway structure not only saves installation space, but also eliminates the need to install separate circulation pumps and drainage pumps, reducing the number of drive devices installed and advantageous in reducing the production costs of the laundry equipment.

[0151] In a further embodiment of this embodiment, the pump 400 further includes a filter 420, which is installed between the water inlet and water outlet ends of the pump 400, specifically inside the pump body 410. The water entering the pump 400 from the water inlet end is filtered by the filter 420, and then forced out of the water outlet end and pumped along the intermediate pipe 220 to the filtering device 600 for filtering.

[0152] Preferably, the size of the contaminants that the filter 420 can filter is larger than the size of the impurities that the filter device 600 can filter. The size of the impurities that the filter device 600 can filter is equal to or larger than the size of the impurities that the lint collection assembly 560 in the wastewater receiving device 500 can collect.

[0153] Specifically, filter 420 in pump 400 is primarily intended to provide a preliminary filtering effect on the water in water tub 100, removing some relatively large contaminants, such as coins, hairpins, or buttons that have fallen off clothing, that may have been brought into water tub 100 along with the laundry. As these contaminants pass through pump 400 along with the water flow, they are not forced out of the outlet end of pump 400 but are instead captured by filter 420, thereby preventing the problem of the above-mentioned contaminants clogging intermediate pipe 220 or filtering device 600 and causing the filtering function of the laundry equipment to malfunction.

[0154] Preferably, the filter 420 is detachably mounted on the pump 400, allowing a user to remove and clean the filter 420. Specifically, the pump 400 is installed integrally with the casing of the wastewater receiving device 500 in the second installation space N in the lower right region inside the housing 10, and both are positioned inside the lower opening 18 installed on the front wall 12 of the housing 10. By opening the lower opening 18, a user can simultaneously expose the pump 400 and the wastewater receiving device 500, and further, can detach and clean the filter 420 of the pump 400 and / or the lint collection assembly 560 of the wastewater receiving device 500 as needed.

[0155] Furthermore, after the water is preliminarily filtered by the filter 420 of the pump 400, it is further filtered by the filtration device 600 to remove impurities smaller than the above-mentioned foreign matter, such as lint that falls off the surface of clothing during the washing process. Specifically, the filtration device 600 can filter impurities larger than 50 μm, which may include microplastics. In particular, the filtered impurities may include plastic fibers larger than 50 μm in length and 10 to 1000 μm in diameter. Preferably, the plastic fibers have a length of 400 to 600 μm, with the most common length being 500 μm ± 50 μm. The diameter of these plastic fibers is preferably 10 to 50 μm, with the most common being 17 μm ± 2 μm.

[0156] The filtering device 600 cleans the filtered impurities and allows the wastewater containing the filtered impurities to flow into the wastewater receiving device 500, thereby achieving the ultimate goal of collecting the filtered impurities. To ensure that the lint collecting assembly 560 can adequately collect microplastics or plastic fibers of the above dimensions contained in the wastewater, the size of the impurities that the lint collecting assembly 560 can filter when filtering the wastewater must be at least equal to or greater than the size of the impurities that the filtering device 600 can filter. For example, the filtering device 600 can filter impurities larger than 50 μm. In this case, the lint collecting assembly 560 must ensure that impurities larger than 50 μm cannot pass through when filtering the received wastewater. Preferably, impurities slightly smaller than 50 μm cannot pass through, ensuring that as many microplastics in the wastewater as possible are collected in the lint collecting assembly 560.

[0157] To achieve the filtration and removal of microplastics of the above dimensions, the filter of the filtration mechanism 620 in the filtration device 600 is selected to have a mesh size ranging from 20 to 500. Furthermore, to ensure that the wastewater receiving device 500 can collect as many microplastics contained in the wastewater as possible and to ensure that the microplastics filtered by the filtration device 600 do not pass through the lint collecting assembly 560 within the wastewater receiving device 500, the pore size of the screen in the lint collecting assembly 560 is at least equal to or smaller than the pore size of the filter in the filtration device 600. In other words, the mesh number of the screen in the lint collecting assembly 560 is equal to or larger than the mesh number of the filter in the filtration device 600, which is 20 to 500 mesh.

[0158] In this example, a large number of tests were conducted in advance on different types of clothing and different washing programs, and it was found that by setting the mesh count of the screen in the lint collection assembly 560 and the mesh count of the filter in the filtration device 600 within the above ranges, plastic fibers of the above dimensions can be filtered out from the wash water and the washing machine's wastewater, ultimately collecting microplastic particles that account for more than 80% of the total content in the water in the wastewater receiving device 500. This significantly reduces the microplastic content in the washing machine's final wastewater stream, allowing it to meet the direct emission standards.

[0159] In this embodiment, the operation process of the laundry facility is the same as in the first embodiment, so the explanation will be omitted.

[0160] The laundry equipment provided in this embodiment is equipped with a self-cleaning filter device 600, which can circulate and filter the wash water and also self-clean the impurities accumulated inside, eliminating the need for users to remove and manually clean filter device 600. The laundry equipment is further equipped with a wastewater receiving device 500, which receives the wastewater discharged by filter device 600 after self-cleaning and collects the filtered impurities in the wastewater, thereby avoiding the problem of microplastics contained in the filtered impurities being directly discharged together with the wastewater from the laundry equipment.

[0161] Since filtering device 600 is installed in an upper region inside housing 10 of the washing machine and wastewater receiving device 500 is installed in a lower region inside housing 10, the installation height of wastewater receiving device 500 is lower than that of filtering device 600, and in particular, wastewater receiving device 500 is lower than wastewater discharge port 6103 of filtering device 600, so that wastewater inside filtering device 600 can be drained into wastewater receiving device 500 by gravity alone, without relying on any additional driving force. In addition, when the washing machine is about to finish operating the current washing program or after the current washing program has finished, wastewater discharge control valve 241 remains open for a certain period of time, so that residual water inside filtering device 600 can be sufficiently discharged from wastewater discharge port 6103 by gravity, thereby avoiding the problem of wash water remaining inside filtering device 600 and enabling the interior of filtering device 600 to become a relatively dry environment as soon as possible after the washing is finished, thereby ensuring the cleanliness and hygiene of the interior of filtering device 600. [Example]

[0162] 4 to 7, the difference between this embodiment and the above-described embodiment 1 or 2 is that the wastewater receiving device 500 is arranged horizontally with the pump 400. Specifically, the wastewater receiving device 500 is in contact with the pump body 410 of the pump 400 and is installed on one side of the pump body 410 (i.e., the left side of the pump body 410 in FIG. 7).

[0163] Furthermore, in this embodiment, an opening communicating with the inside of the casing of the wastewater receiving device 500 is installed on the left side of the pump body 410, and the wastewater filtered inside the wastewater receiving device 500 enters the pump 400 through the aforementioned opening, and is then pressurized from the pump 400 to the drainage pipe 250 and discharged outside the laundry equipment.

[0164] Preferably, similar to the above-mentioned embodiment 1, the pump body 410 and the wastewater receiving device 500 of this embodiment are similarly installed as an integral unit, and their internal spaces are mutually connected. After the filtering device 600 pours wastewater into the wastewater receiving device 500, the pump 400 is operated, and the wastewater filtered by the lint collecting assembly 560 in the wastewater receiving device 500 is sucked into the pump body 410, pumped upward along the intermediate pipe 220, and finally discharged outside the laundry equipment through the drain pipe 250.

[0165] In this embodiment, based on the first and second embodiments, only the arrangement of the wastewater receiving device 500 and the pump 400 is changed, and the other structures are the same as those of the first and second embodiments. The overall structure of the filtration system remains the same, and it still has three filtering water channels to achieve different functions, and the filtering device 600 uses gravity to flow wastewater into the wastewater receiving device 500, and the pump 400 also achieves the effect of discharging the filtered wastewater in the wastewater receiving device 500 outside the laundry equipment. [Example]

[0166] As shown in Figures 4 and 8, the difference between this embodiment and the above-mentioned embodiments 1 and 2 is that the wastewater receiving device 500 is installed at a distance from the pump body 410 of the pump 400, and the two are connected via a discharge pipe 590.

[0167] In a preferred embodiment of the present invention, the outlet of the wastewater receiving device 500 for connecting the discharge pipe 590 is higher than the inlet of the pump body 410 for connecting the discharge pipe 590. The wastewater in the filtering device 600 flows into the wastewater receiving device 500 along the wastewater discharge line 240, and is then filtered by the lint collecting assembly 560 in the wastewater receiving device 500. The filtered wastewater is transported by gravity along the discharge pipe 590 into the pump body 410 of the pump 400, and finally discharged along the drain line 250 by the pumping action of the pump 400.

[0168] Specifically, an outlet to which one end of discharge pipe 590 is connected is provided at the bottom of the casing of wastewater receiving device 500, and an inlet to which the other end of discharge pipe 590 is connected is provided at the bottom of pump body 410. Since the installation height of wastewater receiving device 500 is slightly higher than that of pump 400, the height of the outlet is higher than that of the inlet. Discharge pipe 590 extends from the outlet on the casing of wastewater receiving device 500 to the inlet on pump body 410, and has a structure that extends at an overall downward incline. Furthermore, wastewater filtered within wastewater receiving device 500 can automatically flow along discharge pipe 590 into pump body 410 of pump 400 by the action of gravity, so that no wastewater remains inside wastewater receiving device 500.

[0169] In this embodiment, the rest of the laundry equipment structure is the same as in the first and second embodiments. Furthermore, the objective of realizing different filtering functions using three filtering channels can be achieved. Furthermore, filtering device 600 can direct wastewater into wastewater receiving device 500 solely by the force of its own weight, preventing washwater from remaining inside filtering device 600. Wastewater receiving device 500 is installed separately from pump 400 at a distance and communicates with pump 400 via discharge pipe 590, allowing filtered wastewater to be transported to pump 400 and then discharged. Thus, pump 400 of this embodiment can be obtained by simply modifying a drain pump used in a conventional laundry equipment and adding an inlet for receiving wastewater, eliminating the need to redesign the structure of pump body 410. Since the wastewater receiving device 500 is installed slightly higher than the pump 400, the wastewater filtered in the wastewater receiving device 500 can be sufficiently poured into the pump 400 by the action of gravity, thereby avoiding the problem of wastewater remaining in the wastewater receiving device 500. [Example]

[0170] The difference between this embodiment and the first embodiment is that in the second filtration water channel, the wastewater receiving device communicates with a portion of the first filtration water channel located between the water tank and the pump.

[0171] Specifically, in this embodiment, the water tank and the pump are connected via a water tank drain pipe, and the wastewater receiving device is connected to the water tank drain pipe via a conduit.

[0172] In this embodiment, a drain outlet is provided on the casing of the wastewater receiving device, and a water outlet pipe is connected to the drain pipe. A three-way structure is provided on the drain pipe of the tank, and the end of the water outlet pipe is connected to the three-way structure, thereby communicating with the drain pipe of the tank.

[0173] With the above structure, the aquarium drain pipe can conduct water directly from the aquarium to the pump, and the sewage filtered in the sewage receiving device also flows along the outflow pipe to the aforementioned three-way structure, enters the aquarium drain pipe through the aforementioned three-way structure, and can further be introduced into the pump along the aquarium drain pipe.

[0174] In this embodiment, the wastewater receiving device is connected to the drain pipe of the water tank, and the filtered wastewater is not directly sent to the pump. Compared with the above embodiments 1, 3 and 4, the pump of this embodiment can directly adopt the drain pump used in the laundry equipment of the prior art, and there is no need to change its structure. [Example]

[0175] 9 to 13, this embodiment provides a filtration module and a laundry facility having the filtration module, and the filtration module is used to filter water when applied to the laundry facility. The laundry facility may be a laundry facility with a laundry washing function, such as a washing machine, a washer / dryer, or a laundry care machine.

[0176] Specifically, the laundry equipment includes a water tub 100, and the filtration module is connected to the water tub 100 and serves to filter the water in the water tub 100.

[0177] In this embodiment, the filtration module specifically includes a filtration device 600 and a wastewater receiving device 500. The filtration device 600 has a self-cleaning function and is provided with a wastewater outlet 6103 through which the wastewater generated after self-cleaning can be discharged. The wastewater contains filtered impurities accumulated during the filtration process. The wastewater receiving device 500 is connected to the wastewater outlet 6103 of the filtration device 600 and is used to receive the wastewater discharged from the filtration device 600.

[0178] In the above-mentioned means, filtration device 600 of the filtration module receives and filters the water in water tub 100 of the laundry equipment, and filtration device 600 has a certain self-cleaning ability and can drain filtered impurities accumulated during the filtration process into wastewater receiving device 500, preventing the accumulation of filtered impurities from affecting filtration efficiency. The wastewater is not directly discharged by merging it with the wastewater flow of the laundry equipment, but rather wastewater receiving device 500 receives the wastewater discharged from filtration device 600, thereby avoiding the problem of microplastics contained in the filtered impurities directly entering the ecological cycle together with the wastewater from the laundry equipment.

[0179] Because the entire filtration module is installed inside the laundry equipment, users cannot directly observe the status of the filtration module, especially the accumulation of filtered impurities inside, while using the laundry equipment. However, once the filtered impurities become excessive, the wastewater receiving device 500 may become clogged with the filtered impurities, preventing the wastewater in the filtration device 600 from continuously flowing into the wastewater receiving device 500, and even causing the filtration module to cease performing its filtering function.

[0180] For this reason, the filtration module of this embodiment is further equipped with a detection device 900 for detecting whether or not a blockage has occurred in the wastewater receiving device 500. Specifically, the filtration module described above is equipped with a wastewater discharge pipeline 240 that connects the wastewater receiving device 500 to the wastewater outlet 6103 of the filtration device 600 and transports wastewater from the filtration device 600 to the wastewater receiving device 500. A detection branch path 249 is connected to the wastewater discharge pipeline 240, which guides wastewater to the detection device 900 when a blockage occurs in the wastewater receiving device 500.

[0181] With the above structure, if wastewater receiving device 500 becomes clogged, wastewater discharged from filtering device 600 cannot enter wastewater receiving device 500 and is instead guided along detection branch path 249 to detection device 900. When detection device 900 detects the inflowing wastewater, it can determine that wastewater receiving device 500 is clogged. In this way, the filtration module can timely detect a clogged wastewater receiving device 500 using detection device 900 and can also feed back corresponding information to the control system of the laundry appliance. This allows the laundry appliance to respond in a timely manner to the clogged wastewater receiving device 500, for example by controlling filtering device 600 not to discharge wastewater into wastewater receiving device 500 during the subsequent washing process, thereby ensuring normal operation of the laundry appliance.

[0182] In a further aspect of this embodiment, the detection device 900 specifically includes an exterior casing 910 having a water receiving chamber 911 therein, and a detection assembly for detecting the water level in the water receiving chamber 911. The detection assembly can generate a feedback signal when the water level in the water receiving chamber 911 reaches a preset height, and send the signal to the control system of the laundry machine. The control system of the laundry machine can control the laundry machine to issue an alarm signal according to the feedback signal received, and can also notify the user of the clogging of the wastewater receiving device 500 in a timely manner so that the user can clean the wastewater receiving device 500 after the laundry machine finishes its current operation, thereby ensuring that the wastewater receiving device 500 can be used normally when the laundry machine is restarted.

[0183] Specifically, in this embodiment, the wastewater receiving device 500 is detachably mounted on the housing 10 of the laundry equipment, allowing the user to regularly clean the wastewater receiving device 500, in particular, to clean the filtered impurities that accumulate inside after receiving wastewater. However, if the user forgets to clean the wastewater receiving device 500 in a timely manner, the wastewater receiving device 500 may become clogged with filtered impurities during operation of the laundry equipment. The detection device 900 can timely detect a clogged fault in the wastewater receiving device 500, which causes the laundry equipment to issue an alarm signal to notify the user. Furthermore, the user can be notified of the clogged fault in the wastewater receiving device 500 in a timely manner and manually clean it to eliminate the fault.

[0184] In this embodiment, the detection device 900 is installed at the top of the wastewater discharge pipe 240, and the detection branch path 249 preferably extends vertically upward from between both ends of the wastewater discharge pipe 240 and communicates with the detection device 900. When the wastewater receiving device 500 can normally receive wastewater discharged from the filtering device 600, the wastewater generally does not enter the detection device 900 along the detection branch path 249 due to the action of gravity. Only when the wastewater receiving device 500 is clogged and malfunctioning does the filtering device 600 continue to discharge wastewater, and the discharged wastewater enters the detection device 900 along the detection branch path 249.

[0185] Furthermore, the detection assembly described in this embodiment includes a float 920 and a sensor 930. The float 920 is installed inside the water receiving chamber 911 and can move up and down according to changes in the water level inside the water receiving chamber 911. The sensor 930 detects the height position of the float 920 and generates a feedback signal when the float 920 rises to a preset height together with the water level.

[0186] In the specific implementation of this embodiment, the float 920 is magnetic, and the sensor 930 is a reed switch 940 installed on the top of the exterior 910. When the float 920 moves with the water surface to a preset height, the reed switch 940 becomes conductive due to the magnetic effect of the float 920, thereby generating a feedback signal.

[0187] Specifically, the float 920 may include a permanent magnet and a covering wrapped around the permanent magnet. The covering has a density less than that of water, and may be made of, for example, a foamed plastic material, allowing the float 920 to float on the water surface. Alternatively, the covering may have a hollow structure, making the entire float 920 less dense than water and allowing it to float on the water surface.

[0188] Reed switch 940 is installed on the top outside of exterior casing 910 to avoid contact with dirty water entering water receiving chamber 911. Reed switch 940 is connected to a signal output conductor 943 for transmitting a generated feedback signal by being connected to the control system of the laundry equipment. Referring to Figures 10 and 11, when dirty water is not in water receiving chamber 911, float 920 rests at the bottom of water receiving chamber 911, and first electrode 941 and second electrode 942 inside reed switch 940 are not normally in contact with each other. That is, reed switch 940 is in a disconnected state.

[0189] When wastewater receiving device 500 becomes clogged, wastewater discharged from filter device 600 flows into water receiving chamber 911 along detection branch path 249. Referring to Figures 12 and 13, float 920 rises as the water level in water receiving chamber 911 rises, and when it reaches a certain height, reed switch 940 is affected by the magnetic action of float 920, causing first electrode 941 to contact second electrode 942. At this time, reed switch 940 is in a conductive state, generating a feedback signal which is transmitted to the laundry equipment control system via signal output conductor 943.

[0190] In a further embodiment of this embodiment, the detection assembly further comprises a guide portion 950, in which a hollow passage extending vertically is formed, and the float 920 is restricted in position within the hollow passage so as to move up and down together with the water surface. The reed switch 940 is installed above the guide portion 950.

[0191] Specifically, guide portion 950 has a vertically extending hollow tubular structure, thereby forming the hollow passage therein. At the lower end of guide portion 950, there is an opening for connecting the hollow passage with the space outside guide portion 950, thereby allowing the water level in the hollow passage to change in synchronization with the water level in water receiving chamber 911.

[0192] Furthermore, several ventilation holes (not shown) are installed in the upper region of the induction section 950 to ensure that the air in the hollow passage can be discharged through the ventilation holes as the water level rises, thereby avoiding the occurrence of a height difference between the water level in the hollow passage and the water level in the water receiving chamber 911 due to the presence of air pressure.

[0193] In the above-described means, float 920 is restricted in position within the hollow passage formed by guide portion 950, and can only move up and down within the hollow passage, not freely within water-receiving chamber 911. In other words, float 920 always floats up and down within the area directly below reed switch 940, and after float 920 rises with the water surface, the magnetic field emitted by float 920 acts on reed switch 940, ensuring that reed switch 940 is turned on, thereby avoiding the problem of reed switch 940 not turning on.

[0194] In this embodiment, the wastewater receiving device 500 specifically includes a casing 510 and a collection assembly 570 attached inside the casing 510. The collection assembly 570 divides the interior of the casing 510 into a first chamber 531 and a second chamber 532 arranged one above the other. The outlet end of the wastewater discharge pipe 240 communicates with the first chamber 531, and wastewater containing filtered impurities enters the first chamber 531 and is filtered by the collection assembly 570 before entering the second chamber 532. The filtered impurities are collected in the first chamber 531, i.e., collected on the upper surface of the collection assembly 570.

[0195] The wastewater receiving device 500 can separate filtered impurities from the received wastewater using the collection assembly 570, making it easy for the user to directly dispose of the collected filtered impurities when cleaning the wastewater receiving device 500, thereby avoiding the situation where the filtered impurities are mixed into the water and cannot be effectively treated.

[0196] In detail, the collection assembly 570 comprises a horizontally installed frame and a screen laid on the frame, and the casing 510 is attached to the housing 10 of the laundry equipment so as to be insertable / removable, with an opening on the top of the casing 510, and the collection assembly 570 is detachably attached inside the casing 510. When it is necessary to clean the wastewater receiving device 500, particularly the internal collection assembly 570, the user can remove the collection assembly 570 from inside the casing 510 through the opening on the top of the casing 510 while pulling the casing 510 out of the housing 10, and take it out for cleaning. In this case, there is no need to completely remove the wastewater receiving device 500, making handling more convenient.

[0197] Preferably, a water outlet (not shown) communicating with the second chamber 532 may be installed on the casing 510 of the wastewater receiving device 500, thereby allowing the filtered water in the second chamber 532 to be discharged outside. For example, since the water is directly discharged outside the laundry facility via the laundry facility's drainage system, there is no risk of microplastics being emitted due to filtered impurities being included in the drainage water flow. In this case, when cleaning the wastewater receiving device 500, the user does not need to manually tip and discard the wastewater inside, which is more convenient. Furthermore, the problem of the wastewater receiving device 500 filling up with wastewater and overflowing during the operation of the laundry facility is avoided.

[0198] In this embodiment, the clogging and failure of the wastewater receiving device 500 is believed to occur because the connection between the wastewater discharge pipe 240 and the wastewater receiving device 500 is clogged with filtered impurities, preventing the wastewater from entering the wastewater receiving device 500. It is also believed that the content of filtered impurities in the wastewater is too high, causing the collection assembly 570 to become clogged, resulting in the wastewater entering the second chamber 532 without being filtered by the collection assembly 570, and furthermore, the first chamber 531 is filled with wastewater, preventing the wastewater continuously discharged by the filter device 600 from entering the wastewater receiving device 500, resulting in clogging.

[0199] In this embodiment, the specific structure of the filtration device 600 is as follows: a filtering chamber 610 provided with a water inlet 6101, a filtered water outlet 6102, and a wastewater outlet 6103; a filtering mechanism 620 rotatably installed inside the filtering chamber 610 and having a water outlet joint 621 rotatably and sealingly connected to a filtered water outlet 6102; and a drive mechanism 660 connected to the filtration mechanism 620 for rotating the filtration mechanism 620 within the filtration chamber 610 .

[0200] The filtering mechanism 620 divides the interior of the filtering chamber 610 into an external storage chamber and an internal storage chamber, of which the water inlet 6101 is connected to the external storage chamber and the filtered water outlet 6102 is connected to the internal storage chamber. The water to be filtered enters the external storage chamber through the water inlet 6101 and passes through the filtering mechanism 620 into the internal storage chamber to achieve filtration. Impurities contained in the water adhere to the outer wall of the filtering mechanism 620, and the water from which the impurities have been filtered out can flow through the water outlet joint 621 and out of the filtered water outlet 6102.

[0201] In detail, the filtration mechanism 620 includes a filter frame and a filter covering the filter frame. One end of the filter frame extends to the filtered water outlet 6102 to form a water outlet joint 621.

[0202] When it is necessary to clean the filtered impurities inside the filtration device 600, the driving mechanism 660 rotates the filtration mechanism 620, thereby agitating the water flow inside the filtration chamber 610, and the filtered impurities adhering to the outer wall of the filtration mechanism 620 are separated by the dual action of centrifugal force and the violent vibration of the water flow, allowing them to dissolve into the water inside the filtration chamber 610. The sewage mixed with the filtered impurities is discharged together with the water flow from the sewage discharge port 6103 above the filtration chamber 610, and the sewage is transported into the sewage receiving device 500 via the sewage discharge pipe 240.

[0203] In a further feature of this embodiment, a sewage discharge control valve 241 is installed on the sewage discharge pipe 240 to control the opening and closing of the sewage discharge pipe 240. The upper end of the detection branch line 249 is connected to the detection device 900, and the lower end is connected to the sewage discharge pipe 240, and is located between the sewage discharge control valve 241 and the sewage receiving device 500.

[0204] When the filtering device 600 filters the received water, the wastewater discharge control valve 241 is closed and the wastewater discharge line 240 is blocked. Because the detection branch line 249 is located in the downstream region of the wastewater discharge control valve 241, when the wastewater discharge control valve 241 is closed, there is no communication between the wastewater discharge port 6103 and the detection branch line 249. At this time, the filtering device 600 does not discharge water from the wastewater discharge port 6103, thereby ensuring that all water entering the filtering device 600 from the water inlet 6101 is filtered by the filtering mechanism 620 and then discharged from the filtered water outlet 6102.

[0205] Only when the filtering device 600 needs to discharge wastewater, the wastewater discharge control valve 241 is opened and the wastewater discharge pipe 240 is opened. At this time, the filtering device 600 can discharge wastewater from the wastewater discharge port 6103 to the wastewater receiving device 500, and the detection branch line 249 can guide water to the detection device 900 even if a blockage occurs in the wastewater receiving device 500, thereby enabling detection of a blockage in the wastewater receiving device 500.

[0206] In this embodiment, the filtration device 600 can filter impurities larger than 50 μm in size, which may include microplastics. In particular, the impurities may include plastic fibers larger than 50 μm in length and 10-1000 μm in diameter. Preferably, the plastic fibers have a length of 400-600 μm, with the most common length being 500 μm ± 50 μm. The diameter of these plastic fibers is preferably 10-50 μm, with the most common being 17 μm ± 2 μm.

[0207] The filter 600 cleans the filtered impurities and allows the wastewater containing the filtered impurities to flow into the wastewater receiving device 500, thereby achieving the ultimate goal of collecting the filtered impurities. To ensure that the collection assembly 570 can adequately collect microplastics or plastic fibers of the above dimensions contained in the wastewater, the size of the impurities that the collection assembly 570 can filter must be at least equal to or greater than the size of the impurities that the filter 600 can filter. For example, the filter 600 can filter impurities larger than 50 μm. In this case, the collection assembly 570 must ensure that impurities larger than 50 μm cannot pass through when filtering the received wastewater. Preferably, impurities slightly smaller than 50 μm cannot pass through, ensuring that as many microplastics in the wastewater as possible are collected on the upper side of the collection assembly 570.

[0208] To achieve the filtration and removal of microplastics of the above dimensions, the filter of the filtration mechanism 620 in the filtration device 600 is selected to be 20 to 500 mesh. Furthermore, to ensure that the wastewater receiving device 500 can collect as many microplastics contained in the wastewater as possible and to ensure that the microplastics filtered by the filtration device 600 do not pass through the collection assembly 570 in the wastewater receiving device 500, the pore size of the screen in the collection assembly 570 is at least equal to or smaller than the pore size of the filter in the filtration device 600. In other words, the mesh number of the screen in the collection assembly 570 is equal to or greater than the mesh number of the filter in the filtration device 600, which is 20 to 500 mesh.

[0209] In this example, a large number of tests were conducted in advance on different types of clothing and different washing programs, and it was found that by setting the mesh number of the screen in the collection assembly 570 and the mesh number of the filter in the filtration device 600 within the above ranges, plastic fibers of the above dimensions can be filtered out from the wash water, and ultimately, microplastic particles accounting for more than 80% of the total content in the water can be collected in the wastewater receiving device 500. This significantly reduces the microplastic content in the final wastewater stream from the laundry facility, allowing it to meet the direct emission standards.

[0210] Hereinafter, the specific structure of the laundry equipment to which the above-mentioned filtration module is attached will be further described with reference to FIGS.

[0211] The washing machine is equipped with a circulation filtration pipe, the inlet and outlet of which are connected to water tub 100. A filtration device 600 is installed on the circulation filtration pipe, and a pump 400 is also installed on the circulation filtration pipe. When the washing machine is washing clothes, the pump 400 operates to drive the water in water tub 100 to flow along the circulation filtration pipe, enter the filtration device 600, and return to water tub 100 after being filtered.

[0212] Specifically, an aquarium drain pipe 260 is connected to the bottom of aquarium 100, and the aquarium drain pipe 260 is connected to the inlet end of pump 400. An upper discharge pipe 210 extending upward is connected to the outlet end of pump 400, and the upper end of upper discharge pipe 210 communicates with intermediate pipe 220, which is further connected to water inlet 6101 of filtration device 600. A filtered water outlet 6102 of filtration device 600 communicates with aquarium 100 via return pipe 230. The outlet end of return pipe 230 is specifically connected to window packing 110 at the nozzle of aquarium 100, and water is returned to aquarium 100 via window packing 110.

[0213] Preferably, a return control valve 231 is installed on the return pipe 230 to control the opening and closing of the return pipe 230. When the laundry equipment performs circulating filtration of wash water, the return control valve 231 is opened to return water into the water tub 100. When the filtration device 600 needs to discharge wastewater for cleaning, the return control valve 231 is closed to block the return pipe 230, thereby preventing the filtration device 600 from discharging water from the filtered water outlet 6102 and ensuring that the filtration device 600 can sufficiently discharge wastewater from the wastewater outlet 6103.

[0214] In a further feature of this embodiment, a switching device 270 is installed between the upper discharge pipe 210 and the intermediate pipe 220, and the water inlet of the switching device 270 is connected to the upper end of the upper discharge pipe 210. The switching device 270 has a first water outlet and a second water outlet, the first water outlet is connected to the intermediate pipe 220, and the second water outlet is connected to an external discharge pipe 250 for draining water to the outside of the laundry equipment. A switching mechanism is installed inside the switching device 270 to control the first water outlet and the second water outlet to be selectively connected to the water inlet.

[0215] When the washing machine performs circulating filtration of wash water, the first water outlet of the switching device 270 is connected to the water inlet, whereby the upper discharge pipe 210 is connected to the intermediate pipe 220, and the circulating filtration pipe of the washing machine is opened. When the washing machine finishes washing and needs to drain water to the outside, the second water outlet of the switching device 270 is connected to the water inlet, the upper discharge pipe 210 is connected to the external discharge pipe 250, and the pump 400 is operated so that the water in the water tub 100 can be discharged to the outside of the washing machine along the upper discharge pipe 210 and the external discharge pipe 250.

[0216] By installing the switching device 270, the washing machine can use the same pump 400 to achieve circulating filtration during the washing process, and also to drain water externally. The circulating filtration and drainage share some of the same piping structure, simplifying the water channels inside the washing machine. Switching between the circulating filtration and drainage functions can be achieved by controlling the opening direction of the switching device 270, and the control logic is simple.

[0217] This embodiment further provides a method for controlling the above laundry equipment to realize automatic alarm when the wastewater receiving device 500 is clogged.

[0218] Specifically, the laundry equipment transmits an alarm signal when it determines through detection device 900 that a clog has occurred in wastewater receiving device 500. Since detection device 900 can detect whether a clog has occurred in wastewater receiving device 500, when it detects that a clog has occurred in wastewater receiving device 500, the laundry equipment notifies the user by transmitting an alarm signal, allowing the user to timely grasp the operating status of wastewater receiving device 500 and easily manually clean wastewater receiving device 500 as soon as possible to eliminate the clog.

[0219] In this embodiment, the detection device 900 notifies the wastewater receiving device 500 of the occurrence of a clogging fault by sending a feedback signal to the laundry appliance control system via a sensor 930, i.e., a reed switch 940. A further feature of this embodiment is to send an alarm signal if the laundry appliance continuously receives the feedback signal for more than a preset time period.

[0220] In detail, when the dirty water enters the exterior 910 of the detection device 900 along the detection branch path 249 and has a certain water level in the water receiving chamber 911, the float 920 rises with the water level, causing the reed switch 940 to conduct, generating a feedback signal and sending it to the control system of the laundry equipment.

[0221] 14, after receiving the feedback signal, the laundry machine control system starts counting, calculates the duration T of the current feedback signal, and compares it with a preset time T0. If the current duration T is greater than the preset time T0, the laundry machine is controlled to issue an alarm signal. If T≦T0, the duration T continues to be accumulated until T>T0 or until the reed switch 940 is disconnected and the laundry machine no longer receives the feedback signal.

[0222] In this embodiment, if the wastewater receiving device 500 is not clogged, wastewater will generally not enter the detection device 900. However, because the extension length of the detection branch path 249 is limited, if the water flow rate in the wastewater discharge pipe 240 is excessive, some wastewater may flow along the detection branch path 249 into the detection device 900. In this case, the float 920 may rise with the water surface, which may trigger the first electrode 941 and the second electrode 942 of the reed switch 940 to be electrically connected, generating a feedback signal.

[0223] The above means only triggers an alarm if the laundry equipment continuously receives a feedback signal for more than a preset time T0, thereby preventing the laundry equipment from generating a false alarm in response to a clogged wastewater receiving device 500 failure when the reed switch 940 is temporarily conductive due to excessive wastewater flow.

[0224] In this embodiment, detection branch 249 is connected to wastewater discharge pipe 240 between filtration device 600 and wastewater receiving device 500, and detection device 900 is installed to detect clogging of wastewater receiving device 500 and ensure normal operation of the laundry equipment. The laundry equipment can issue an alarm to notify the user when clogging of wastewater receiving device 500 occurs, so that the user can clean wastewater receiving device 500 in a timely manner and avoid affecting subsequent use. The laundry equipment issues an alarm only when it continuously receives a feedback signal from detection device 900, thereby reducing the probability of false alarms and making the alarm for clogging of wastewater receiving device 500 more accurate. [Example]

[0225] The difference between this embodiment and the sixth embodiment is that the reed switch is installed at the bottom of the detector housing. When there is no water in the water chamber, the magnetic float is located at the bottom of the water chamber, and the reed switch is conductive due to the float's magnetic action. When dirty water enters the water chamber, the float rises with the water surface and is separated from the reed switch by a certain distance. The reed switch is no longer affected by the float's magnetic action, and the first and second electrodes inside it are disconnected. At this time, a feedback signal can be generated and sent to the laundry equipment control system.

[0226] In this embodiment, only the installation position of the reed switch is changed, and all other structures are the same as in the sixth embodiment, and similarly has the effect of being able to detect clogging of the wastewater receiving device in a timely manner. [Example]

[0227] The difference between this embodiment and the sixth embodiment is that the aforementioned sensor is a magnetic field strength sensor that can detect changes in the strength of the surrounding magnetic field.

[0228] When there is no water in the water receiving chamber, the magnetic float rests at the bottom of the water receiving chamber, the distance between it and the magnetic field strength sensor is relatively large, and the magnetic field strength detected by the magnetic field strength sensor is low. When the wastewater receiving device is clogged and wastewater enters the water receiving chamber, the float rises with the water surface, gradually approaching the magnetic field strength sensor, and the magnetic field strength detected by the magnetic field strength sensor is gradually increasing.

[0229] In this embodiment, when the detected magnetic field strength reaches a set threshold, a feedback signal is generated and sent to the laundry equipment control system. If the laundry equipment control system continuously receives the feedback signal for more than a preset time, i.e., if the detected magnetic field strength continuously exceeds the set threshold for the preset time without falling below the set threshold, it indicates that the wastewater receiving device has become clogged and the laundry equipment will issue an alarm signal.

[0230] In a further aspect of this embodiment, the magnetic field strength sensor can be used in conjunction with the reed switch of embodiment 6. That is, the reed switch is opened and closed to determine whether the float is rising with the water surface, and the magnetic field strength sensor detects changes in magnetic field strength to determine the float's position. By using the above two methods in combination, the accuracy of detecting clogging in the sewage receiving device is further improved.

[0231] In this example, the other results of the filtration module and the laundry equipment are the same as those in Example 6, so the description will be omitted. [Example]

[0232] The difference between this embodiment and the above-mentioned embodiment 6 is that the aforementioned sensor is a contact switch, which is installed in the upper region of the inner wall of the aforementioned induction section, or on the inner wall of the exterior corresponding to the top end of the induction section.

[0233] In this embodiment, the float does not need to be magnetic; it only needs to be able to float on the water surface and move up and down according to changes in the water level. When there is no water in the water receiving chamber, the float rests at the bottom of the water receiving chamber and is separated from the contact switch. If the wastewater receiving device becomes clogged and wastewater enters the water receiving chamber, the float will gradually rise with the water level. When the water level in the water receiving chamber reaches a certain height, the float will rise with the water level and contact the contact switch, triggering the contact switch to generate a feedback signal.

[0234] Furthermore, if the float continuously triggers the contact switch for more than a preset time, i.e., if the control system of the laundry equipment continuously receives a feedback signal for more than a preset time, it indicates that the wastewater receiving device is clogged and faulty, and the laundry equipment will issue an alarm signal.

[0235] Similar to the above-mentioned Example 3, this Example can also be applied in combination with the means of the above-mentioned Examples 6 and 3. That is, a contact switch, a reed switch and / or a magnetic field strength sensor are simultaneously installed in the detection device. The control system of the laundry equipment simultaneously receives feedback signals transmitted from the contact switch, the reed switch and / or the magnetic field strength sensor, and can comprehensively analyze and determine whether a clog has occurred in the wastewater receiving device, thereby further improving the detection accuracy. [Example]

[0236] The difference between this embodiment and the above-mentioned embodiment 6 is that the aforementioned detection assembly is a water level sensor, which can generate a feedback signal when the water level in the water receiving chamber reaches a preset height.

[0237] In a specific embodiment of this embodiment, the water level sensor is two water level probes installed at a certain height on the wall of the water receiving chamber. When the water level in the water receiving chamber reaches a predetermined height, the two water level probes come into contact with the water, detecting the continuity of the circuit and generating a feedback signal.

[0238] In another specific embodiment of this embodiment, the water level sensor is a pressure sensor installed at the bottom of the bottom wall or the bottom of the side wall of the water receiving chamber, and the water pressure information is detected by the pressure sensor to determine the water level in the water receiving chamber. When the water level reaches a predetermined level, a feedback signal is generated and sent to the control system of the laundry equipment.

[0239] In a further embodiment of this embodiment, the detection assembly may further include a combination of a float and a sensor. The water level sensor directly detects the water level in the water receiving chamber, and the sensor detects the height to which the float rises along with the water surface. The control system of the laundry equipment simultaneously receives a feedback signal generated by the water level sensor and a feedback signal generated by a sensor linked to the float, and determines that a clog has occurred in the wastewater receiving device only if the durations of both received feedback signals exceed a predetermined time, and accordingly controls the laundry equipment to issue an alarm signal.

[0240] In the above means, the combination of the float and the sensor can employ any one of the means of the sixth to ninth embodiments.

[0241] In this embodiment, the water level sensor and the combination of the float and the sensor are used in conjunction with each other to further improve the accuracy of detecting whether the wastewater receiving device is clogged. In particular, if the float is stuck in the guide and cannot descend with the water level, the corresponding sensor continuously generates a feedback signal, preventing the laundry equipment from mistakenly determining that the wastewater receiving device is clogged. [Example]

[0242] 15 to 20, this embodiment provides a filtration module and a laundry facility having the filtration module, and the filtration module is used to filter water when applied to the laundry facility. The laundry facility may be a laundry facility with a clothing washing function, such as a washing machine, a washer / dryer, or a clothing care machine.

[0243] Specifically, the laundry equipment includes a water tub 100, and the filtration module is connected to the water tub 100 and serves to filter the water in the water tub 100.

[0244] In this embodiment, the filtration module specifically includes a filtration device 600 and a wastewater receiving device 500. The filtration device 600 has a self-cleaning function and is provided with a wastewater outlet 6103 through which the wastewater generated after self-cleaning can be discharged. The wastewater contains filtered impurities accumulated during the filtration process. The wastewater receiving device 500 is installed downstream of the wastewater outlet 6103 of the filtration device 600 and can receive the wastewater discharged from the filtration device 600.

[0245] In the above-mentioned means, filtration device 600 of the filtration module receives and filters water from water tub 100 of the laundry facility, and filtration device 600 has a certain self-cleaning ability and can drain filtered impurities accumulated during the filtration process into collection assembly 570 of wastewater receiving device 500, preventing a large accumulation of filtered impurities from affecting filtration efficiency. By using wastewater receiving device 500 to receive the wastewater discharged from filtration device 600 rather than merging the wastewater into the wastewater flow of the laundry facility and discharging it directly, the problem of microplastics contained in the filtered impurities directly entering the ecological cycle together with the wastewater from the laundry facility is avoided.

[0246] Specifically, in this embodiment, a collection assembly 570 is installed inside the wastewater receiving device 500, and the collection assembly 570 has a collection chamber 571 for collecting filtered impurities in the wastewater, and the collection chamber 571 is connected to the wastewater outlet 6103 of the filtering device 600. The wastewater discharged from the filtering device 600 directly enters the collection chamber 571, and the collection assembly 570 can filter the wastewater, thereby collecting filtered impurities in the wastewater, such as lint, in the collection chamber 571.

[0247] The collection assembly 570 of this embodiment is detachably attached to the inside of the wastewater receiving apparatus 500. When the amount of filtered impurities accumulated in the collection chamber 571 reaches a certain amount, the user can remove the collection assembly 570 from the wastewater receiving apparatus 500, clean it, and then reattach the cleaned collection assembly 570 to the wastewater receiving apparatus 500 in preparation for subsequent use.

[0248] However, since the collection assembly 570 is detachable from the inside of the wastewater receiving device 500, it is possible that the collection assembly 570 is not installed in the proper position, or even that the user forgets to install the collection assembly 570. In this case, when the laundry equipment is running and the filtration function is performed using the filtration module, a problem occurs in that the filtered impurities are not collected in the collection chamber 571.

[0249] To ensure that collection assembly 570 can effectively collect the filtered impurities, the filtration module of this embodiment is further equipped with a position detection device for detecting whether collection assembly 570 is installed in the proper position within wastewater receiving device 500. The position detection device provides feedback on the installation status of collection assembly 570, allowing the laundry apparatus to promptly notify the user if collection assembly 570 is not properly installed, thereby preventing the laundry apparatus from operating with collection assembly 570 not properly installed. In this way, the problem of ineffective collection of filtered impurities in wastewater caused by filtration device 600 discharging wastewater with collection assembly 570 not properly installed is prevented.

[0250] In a further aspect of this embodiment, the wastewater receiving device 500 includes a receiving casing 510, and the collecting assembly 570 is mounted inside the receiving casing 510. The position detecting device includes a detecting element mounted on the receiving casing 510 and a detected element mounted on the collecting assembly 570. When the detected element is located within the effective detection range of the detecting element, the detecting element can be triggered, thereby realizing detection of whether the collecting assembly 570 is mounted in the appropriate position.

[0251] It should be understood that the installation positions of the detection element and the detected element can be reversed, i.e., if the detection element is installed on the collection assembly and the detected element is installed on the storage casing, detection of whether the collection assembly is installed in the appropriate position can be similarly achieved.

[0252] Furthermore, in this embodiment, the detecting element is a reed switch 820 installed on the accommodating casing 510, and the detected element is a magnetic component 810 installed on the collecting assembly 570. The position detecting device further includes a detecting circuit, and the reed switch 820 is installed on the detecting circuit. When the collecting assembly 570 is installed in an appropriate position in the wastewater receiving device 500, the magnetic component 810 is located within the effective detecting range of the reed switch 820, and the reed switch 820 causes the detecting circuit to be conductive due to the action of the magnetic component 810.

[0253] Specifically, reed switch 820 has first electrode 821 and second electrode 822, which are connected in series to the detection circuit via signal output wire 823. First electrode 821 and second electrode 822 are normally not in contact, and the detection circuit is in a disconnected state. When collection assembly 570 is installed in the appropriate position, magnetic part 810 is located close to reed switch 820, and reed switch 820 is subjected to the magnetic action of magnetic part 810, causing first electrode 821 and second electrode 822 to come into contact, thereby causing the detection circuit to be conductive. The laundry equipment can determine whether collection assembly 570 is installed in the appropriate position based on the open / closed state of the detection circuit.

[0254] 16 and 17 are plan structural views of the wastewater receiving device 500 in this embodiment, and FIG. 18 is a cross-sectional view of the wastewater receiving device 500 in FIG. 17 taken along the dotted line.

[0255] 18, in a preferred embodiment of the present invention, the reed switch 820 is installed outside the casing 510 and is closely attached to the outer wall of the casing 510. This makes it easier to route the signal output wire 823 on the reed switch 820, while also reducing the risk of the reed switch 820 coming into contact with the wastewater poured into the wastewater receiving device 500 and being damaged.

[0256] The collection assembly 570 includes a collection chamber wall 572 surrounding a collection chamber 571, and the magnetic component 810 is embedded in the collection chamber wall 572. The magnetic component 810, which is linked to a reed switch 820, is embedded in the collection chamber wall 572, which avoids the problem that the magnetic component 810 may fall off when the collection assembly 570 is repeatedly attached and detached, and also ensures effective detection of the attachment state of the collection assembly 570.

[0257] Furthermore, the filtration module of this embodiment further includes a sewage discharge pipeline 240, one end of which (i.e., the inlet end of the sewage discharge pipeline 240) is connected to the sewage outlet 6103 of the filtration device 600, and the other end (i.e., the outlet end of the sewage discharge pipeline 240) passes through the side wall of the accommodating casing 510 and communicates with the collection chamber 571 of the collection assembly 570.

[0258] The reed switch 820, which is the detection element described above, is installed on the side wall of the accommodating casing 510 through which the wastewater discharge pipe 240 passes, i.e., on the left side wall of the accommodating casing 510 in Fig. 18. The magnetic part 810, which is the detected element described above, is located on the side where the collection assembly 570 communicates with the wastewater discharge pipe 240, i.e., the magnetic part 810 is fitted inside the left side wall of the collection chamber wall 572 in Fig. 18.

[0259] In the above-described method, collection assembly 570 is connected to wastewater discharge line 240 to receive wastewater and collect filtered impurities, and reed switch 820 and magnetic component 810 are respectively installed near the outlet end of wastewater discharge line 240, thereby more accurately detecting whether the current installation position of collection assembly 570 achieves effective connection with the outlet end of wastewater discharge line 240. In this way, when it is detected that collection assembly 570 is installed in the appropriate position within wastewater receiving device 500, it can be ensured that the outlet end of wastewater discharge line 240 is effectively connected to collection assembly 570, and further, filtered impurities in the wastewater can be effectively collected, thereby preventing the problem of microplastics in the filtered impurities not being captured and being discharged with the wastewater flow from the laundry equipment.

[0260] In detail, as shown in FIG. 18, when the collection assembly 570 is installed in an appropriate position within the accommodating casing 510, the magnetic part 810 is located near the reed switch 820 outside the accommodating casing 510, and the first electrode 821 and the second electrode 822 of the reed switch 820 come into contact with each other due to the magnetic action of the magnetic part 810, thereby causing the detection circuit to conduct.

[0261] 19, if the collection assembly 570 is not installed in the appropriate position in the accommodating casing 510, there is a certain distance between the magnetic part 810 and the reed switch 820, so that the magnetic effect on the reed switch 820 is extremely weak, the first electrode 821 and the second electrode 822 remain separated, and the detection circuit is disconnected. Similarly, as shown in FIG. 20, if the collection assembly 570 is not installed in the accommodating casing 510, the reed switch 820 is not affected by the magnetic field at all, so that the first electrode 821 and the second electrode 822 remain separated, and the detection circuit is disconnected.

[0262] In the detailed means of this embodiment, several water-permeable holes are provided on the collecting chamber wall 572, and the collecting assembly 570 further includes a screen covering the aforementioned water-permeable holes to realize filtering of the received wastewater, thereby collecting the filtered impurities in the collecting chamber 571. The wastewater discharged from the filtering device 600 enters the collecting chamber 571 along the wastewater discharge pipe 240, the filtered impurities are captured by the screen and collected inside the collecting chamber 571, and the wastewater from which the filtered impurities have been filtered out passes through the screen on the aforementioned water-permeable holes and flows into the containing casing 510.

[0263] In this embodiment, the receiving casing 510 is installed on the laundry equipment housing 10 so as to be able to be pushed and pulled, and the user can pull out the receiving casing 510, thereby removing the collection assembly 570 therein, and clean the filtered impurities collected therein. The collection assembly 570 filters the wastewater, thereby separating the filtered impurities from the water, and avoiding the problem of filtered impurities being mixed in the water and making it difficult for the user to dispose of them.

[0264] In a preferred embodiment of this embodiment, a water outlet (not shown) for discharging filtered water may be provided on the receiving casing 510. The water outlet may be connected to the water tub 100 of the laundry facility, so that the filtered water free from impurities can be passed through the water tub 100 for reuse. Alternatively, the water outlet may also be connected to the outside of the laundry facility, so that the filtered water free from impurities can be discharged outside the laundry facility.

[0265] The provision of a self-draining water outlet on the receiving casing 510 prevents wastewater discharged from the filtering device 600 from accumulating within the receiving casing 510, thereby reducing the internal volume of the receiving casing 510 and eliminating the problem of the wastewater receiving device 500 overflowing during the operation of the laundry equipment. In addition, when the user pulls out the receiving casing 510 for cleaning, the user only needs to remove the collecting assembly 570 and clean the filtered impurities therein, eliminating the need to remove the receiving casing 510 from the housing 10 and then manually tip the wastewater accumulated inside for disposal, which is more convenient.

[0266] In a further aspect of this embodiment, the filtration device 600 of the aforementioned filtration module specifically comprises: a filtering chamber 610 provided with a water inlet 6101, a filtered water outlet 6102, and a wastewater outlet 6103; a filtering mechanism 620 rotatably installed inside the filtering chamber 610 and having a water outlet joint 621 rotatably and sealingly connected to a filtered water outlet 6102; and a drive mechanism 660 connected to the filtration mechanism 620 for rotating the filtration mechanism 620 within the filtration chamber 610 .

[0267] The filtering mechanism 620 divides the inside of the filtering chamber 610 into an external storage chamber and an internal storage chamber, of which the water inlet 6101 is connected to the external storage chamber and the filtered water outlet 6102 is connected to the internal storage chamber. The water to be filtered enters the external storage chamber through the water inlet 6101 and passes through the filtering mechanism 620 into the internal storage chamber to achieve filtration. Impurities contained in the water adhere to the outer wall of the filtering mechanism 620, and the water from which the impurities have been filtered out can flow through the water outlet joint 621 and out of the filtered water outlet 6102.

[0268] In detail, the filtration mechanism 620 includes a filter frame and a filter covering the filter frame. One end of the filter frame extends to the filtered water outlet 6102 to form a water outlet joint 621.

[0269] When it is necessary to clean the filtered impurities inside the filtration device 600, the driving mechanism 660 rotates the filtration mechanism 620, thereby agitating the water flow inside the filtration chamber 610, and the filtered impurities adhering to the outer wall of the filtration mechanism 620 are separated by the dual action of centrifugal force and the violent vibration of the water flow, allowing them to dissolve into the water inside the filtration chamber 610. The sewage mixed with the filtered impurities is discharged together with the water flow from the sewage discharge port 6103 above the filtration chamber 610, and the sewage is transported into the sewage receiving device 500 via the sewage discharge pipe 240.

[0270] More preferably, cleaning particles 680 are further installed between the inner wall of the filtering chamber 610 and the outer wall of the filtering mechanism 620, for rubbing and colliding with the water flow to clean the inner wall of the filtering chamber 610 and the outer wall of the filtering mechanism 620. During the filtration process, the cleaning particles 680, together with the flowing water, constantly rub against the inner wall of the filtering chamber 610 and the outer wall of the filtering mechanism 620, causing adhering impurities to fall off, thereby preventing the impurities from settling and preventing the filtering mechanism 620 from being covered too quickly by the impurities, which would affect the filtering efficiency. Meanwhile, this also avoids the problem that the adhering impurities are relatively thick after filtration is completed and adhere too tightly to the inner wall of the filtering chamber 610 or the outer wall of the filtering mechanism 620, making it difficult to remove the impurities when cleaning the filtering device 600 later.

[0271] Furthermore, when the driving mechanism 660 rotates and drives the filtering mechanism 620 within the filtering chamber 610 to achieve self-cleaning, the cleaning particles 680 move within the filtering chamber 610 due to the strong vibration of the water flow, generating friction with the inner wall of the filtering chamber 610 and the outer wall of the filtering mechanism 620, thereby increasing the efficiency of removing filtered impurities and further improving the self-cleaning effect of the filtering device 600.

[0272] A shielding plate 690 is further installed in the filtering chamber 610, and a water passage hole 691 is installed on the shielding plate 690. The cleaning particles 680 are installed on one side of the shielding plate 690 (i.e., the left side in FIG. 16), and the filtered water outlet 6102 and the wastewater discharge port 6103 on the filtering chamber 610 are both located on the other side of the shielding plate 690 (i.e., the right side in FIG. 16).

[0273] The installation of the shielding plate 690 can prevent cleaning particles 680 from aggregating at the filtrate outlet 6102 during the filtration process. When the filtration device 600 self-cleans and discharges wastewater, the wastewater containing the filtered impurities can pass through the water passage holes 691, pass through the shielding plate 690, and be discharged from the wastewater outlet 6103. Furthermore, since the cleaning particles 680 are blocked by the shielding plate 690, they are not discharged with the water flow from the wastewater outlet 6103, thereby avoiding loss of the cleaning particles 680. At the same time, it can also prevent the cleaning particles 680 from accumulating at the wastewater outlet 6103, clogging the wastewater outlet 6103 and affecting the wastewater discharge efficiency.

[0274] In a further feature of this embodiment, a wastewater discharge control valve 241 is installed on the wastewater discharge pipe 240 to control the opening and closing of the wastewater discharge pipe 240. When the filtration device 600 filters the received water, the wastewater discharge control valve 241 is in a closed state and the wastewater discharge pipe 240 is blocked. This ensures that the water entering the filtration device 600 can flow out from the filtered water outlet 6102 after filtration. When the wastewater in the filtration device 600 needs to be discharged, the wastewater discharge control valve 241 is opened to open the wastewater discharge pipe 240, and the wastewater in the filtration device 600 can flow into the wastewater receiving device 500.

[0275] Preferably, a return pipe 230 for transporting water filtered by the filtration device 600 is connected to the filtered water outlet 6102 of the filtration device 600. A return control valve 231 for controlling the opening and closing of the return pipe 230 is installed on the return pipe 230. When the filtration device 600 performs filtration, the return control valve 231 is open, but when the filtration device 600 is controlled to discharge wastewater, the return control valve 231 is closed and the filtration device 600 cannot discharge water from the filtered water outlet 6102, thereby ensuring that the wastewater in the filtration device 600 is sufficiently discharged from the wastewater discharge port 6103.

[0276] In this embodiment, the filtration device 600 can filter impurities larger than 50 μm in size, which may include microplastics. In particular, the impurities may include plastic fibers larger than 50 μm in length and 10-1000 μm in diameter. Preferably, the plastic fibers have a length of 400-600 μm, with the most common length distribution being 500 μm ± 50 μm. The diameter of these plastic fibers is preferably 10-50 μm, with the most common diameter being 17 μm ± 2 μm.

[0277] The filtration device 600 cleans the filtered impurities and allows the wastewater containing the filtered impurities to flow into the wastewater receiving device 500, where the final goal of collecting the filtered impurities can be achieved by the collection assembly 570 inside the wastewater receiving device 500. To ensure that the collection assembly 570 can adequately collect microplastics or plastic fibers of the above dimensions contained in the wastewater, the size of the filtered impurities that the collection assembly 570 can filter when filtering the wastewater must be at least equal to or greater than the size of the filtered impurities that the filtration device 600 can filter. For example, the filtration device 600 can filter impurities larger than 50 μm. In this case, the collection assembly 570 must ensure that impurities larger than 50 μm cannot pass through when filtering the received wastewater. Preferably, impurities slightly smaller than 50 μm cannot pass through, ensuring that as many microplastics in the wastewater as possible are collected in the collection chamber 571 of the collection assembly 570.

[0278] To achieve the filtration and removal of microplastics of the above dimensions, the filter of the filtration mechanism 620 in the filtration device 600 is selected to have a mesh size ranging from 20 to 500. Furthermore, to ensure that the collection assembly 570 inside the wastewater receiving device 500 can collect as many microplastics contained in the wastewater as possible and to prevent microplastics filtered by the filtration device 600 from passing through the screen in the collection assembly 570 inside the wastewater receiving device 500, the pore size of the screen of the collection assembly 570 is at least equal to or smaller than the pore size of the filter in the filtration device 600. In other words, the mesh number of the screen in the collection assembly 570 is equal to or greater than the mesh number of the filter in the filtration device 600, which is 20 to 500 mesh.

[0279] In this example, through a large number of tests conducted in advance on different types of clothing and different washing programs, it was found that by setting the mesh number of the screen in the collection assembly 570 and the mesh number of the filter in the filtration device 600 within the above ranges, plastic fibers of the above dimensions can be filtered out from the wash water, and ultimately, microplastic particles accounting for more than 80% of the total content in the water can be collected in the collection assembly 570. This significantly reduces the microplastic content in the final wastewater stream of the laundry equipment, allowing it to meet the direct emission standards.

[0280] Hereinafter, the specific structure of the laundry equipment to which the filtration module according to this embodiment is attached will be further described with reference to FIGS.

[0281] The washing machine is equipped with a circulation filtration pipeline, the inlet and outlet of which are connected to water tub 100. The filtration device 600 of the filtration module is installed on the circulation filtration pipeline, and a pump 400 is also installed on the circulation filtration pipeline. During the process of washing clothes in the washing machine, the pump 400 operates to drive the water in water tub 100 to flow along the circulation filtration pipeline, enter the filtration device 600, and return to water tub 100 after being filtered.

[0282] Specifically, an aquarium drain pipe 260 is connected to the bottom of aquarium 100, and the aquarium drain pipe 260 is connected to the inlet end of pump 400. An upper discharge pipe 210 is connected to the outlet end of pump 400, wrapping around the rear of aquarium 100 and extending upward. The upper end of upper discharge pipe 210 communicates with intermediate pipe 220, which is further connected to a water inlet 6101 of filtration device 600. A filtered water outlet 6102 of filtration device 600 communicates with aquarium 100 via return pipe 230. The outlet end of return pipe 230 is connected to window packing 110 at the nozzle of aquarium 100, and water is returned to aquarium 100 via window packing 110.

[0283] In a further feature of this embodiment, a switching device 270 is installed between the upper discharge pipe 210 and the intermediate pipe 220, and the water inlet of the switching device 270 is connected to the upper end of the upper discharge pipe 210. The switching device 270 has a first water outlet and a second water outlet, the first water outlet is connected to the intermediate pipe 220, and the second water outlet is connected to an external discharge pipe 250 for draining water to the outside of the laundry equipment. A switching mechanism is installed inside the switching device 270 to control the first water outlet and the second water outlet to be selectively connected to the water inlet.

[0284] When the washing machine performs circulating filtration of wash water, the first water outlet of the switching device 270 is connected to the water inlet, whereby the upper discharge pipe 210 is connected to the intermediate pipe 220, and the circulating filtration pipe of the washing machine is opened. When the washing machine finishes washing and needs to drain water to the outside, the second water outlet of the switching device 270 is connected to the water inlet, the upper discharge pipe 210 is connected to the external discharge pipe 250, and the pump 400 is operated so that the water in the water tub 100 can be discharged to the outside of the washing machine along the upper discharge pipe 210 and the external discharge pipe 250.

[0285] By installing the switching device 270, the washing machine can use the same pump 400 to achieve both circulating filtration during the washing process and external drainage. The circulating filtration and drainage share some of the same piping structure, simplifying the internal water channels of the washing machine. Switching between the circulating filtration and drainage functions can be achieved by controlling the opening direction of the switching device 270, and the control logic is simple.

[0286] In this embodiment, the washing machine is equipped with a filtration module, which allows for circulating and filtering wash water during operation, preventing lint and other debris from adhering to washed clothes and improving the washing efficiency. The filtration module includes a filtration device 600 for filtering the wash water, which has a self-cleaning function and can self-discharge lint and other filtered impurities accumulated during the filtration process. The filtration module further includes a wastewater receiving device 500, which can receive wastewater discharged from the filtration device 600 using an internal collection assembly 570 and collect filtered impurities in the wastewater, preventing the wastewater from being directly discharged and causing problems with microplastics in the filtered impurities entering the ecological cycle.

[0287] The collection assembly 570 is detachably installed inside the wastewater receiving device 500, and can be removed and manually cleaned by the user. The filtration module is further equipped with a position detection device, which can be used to provide feedback to the laundry equipment about the installation status of the collection assembly 570. If the user does not install the collection assembly 570 in the appropriate position or forgets to install the collection assembly 570, the user can be notified in a timely manner, and the laundry equipment can continue running the washing program without any problems, which can prevent the collection assembly 570 from effectively collecting filtered impurities. [Example]

[0288] This embodiment provides a method for controlling the laundry equipment described in the above embodiment 11. As shown in Figures 15 to 20, the above control method specifically includes: receiving a command to start a washing program; and if it determines that the collection assembly 570 is properly installed, initiating the operation of a wash program.

[0289] Additionally, if it determines that the collection assembly 570 is not properly installed, it will lock the laundry facility and generate an alarm signal.

[0290] It should be noted that "the collection assembly 570 is not properly installed" in this embodiment includes at least two situations: the collection assembly 570 is installed inside the storage casing 510 but not in the proper position (as shown in FIG. 19), and the collection assembly 570 is not installed inside the storage casing 510 (as shown in FIG. 20).

[0291] In this embodiment, after receiving a command to start a washing program, the washing machine does not immediately start operation, but first checks the installation status of collection assembly 570. Only when collection assembly 570 is properly installed does the washing machine start operation of the washing program, ensuring that wastewater discharged from filtering device 600 properly flows into collection assembly 570 of wastewater receiving device 500 during the washing process, thereby enabling collection of filtered impurities in the wastewater by collection assembly 570.

[0292] In addition, if it is determined that the collection assembly 570 is not installed in the proper position, the washing machine will automatically lock, the washing program will not run, and the filtered impurities will not be effectively collected, thereby avoiding the problem. The washing machine can also issue an alarm signal if it determines that the collection assembly 570 is not installed properly, thereby promptly notifying the user to manually check the installation status of the collection assembly 570 and ensuring that the washing machine can start operating as soon as possible.

[0293] In this embodiment, the alarm signal may be in various forms such as a flashing alarm lamp, a beep, or a voice notification, and is not specifically limited here.

[0294] In the specific implementation of this embodiment, the aforementioned filtering module provides feedback to the laundry equipment regarding the installation status of the collecting assembly 570 through the cooperation of the magnetic component 810 and the reed switch 820. The reed switch 820 is incorporated into a detection circuit, and the laundry equipment can determine whether the collecting assembly 570 is installed in the proper position by obtaining the open / closed state of the aforementioned detection circuit.

[0295] Specifically, after receiving a start command for a washing program, the washing machine obtains the open / closed state of the detection circuit, and if the detection circuit is in a conductive state, it determines that the collecting assembly 570 is properly installed; if the detection circuit is in a disconnected state, it determines that the collecting assembly 570 is not properly installed.

[0296] Furthermore, a program start key is set in the laundry equipment of this embodiment, and when the laundry equipment receives a command to start a laundry program, it specifically means that the laundry equipment has received a signal indicating that the aforementioned program start key has been triggered.

[0297] In detail, as shown in FIG. 21, the above-mentioned laundry equipment control method in this embodiment includes the following steps:

[0298] S1, receive a signal indicating that the program start key has been triggered;

[0299] S2, obtain the open / closed state of the detection circuit and determine whether the detection circuit is in a conductive state.

[0300] S3: If the detection circuit is conductive, it is determined that the collection assembly is properly installed and the washing machine starts the washing program; otherwise, it is determined that the collection assembly is not properly installed and step S4 is executed.

[0301] S4, lock the laundry equipment and send an alarm notification message.

[0302] In a further aspect of this embodiment, if the laundry equipment detects that the collecting assembly 570 is not properly installed and then the receiving casing 510 is pulled out and pushed back into the housing 10, the laundry equipment again obtains the open / closed state of the detection circuit to determine the installation status of the collecting assembly 570.

[0303] Specifically, as shown in FIG. 22, the following steps are further included after the above step S4.

[0304] S5: When it detects that the storage casing has been pulled out of the housing, it stops sending the alarm notification message.

[0305] S6: When it is detected that the receiving casing has been pushed into the housing, the laundry equipment unlocks and returns to step S2.

[0306] In the above-described manner, when the washing machine detects that the storage casing 510 has been pulled out and then pushed back into the housing 10, it means that the user has readjusted the installation of the collecting assembly 570. In this case, the installation status of the collecting assembly 570 can be redetected, and if it is installed in the appropriate position, the washing program can be automatically started, eliminating the need for the user to manually start the washing program again, which is convenient.

[0307] Furthermore, if the laundry equipment detects that all of the above-mentioned detection circuits are in a disconnected state N times in succession, the laundry equipment will remain in a continuously locked state, cancel the operation of the laundry program, and issue an alarm message to notify the user that a detection will be performed on the entire wastewater receiving device 500.

[0308] In the above-described manner, if the laundry machine detects that the detection circuit is still disconnected after the user adjusts the installation position of collection assembly 570 multiple times, the structures of reed switch 820, collection assembly 570, etc. may be damaged, and it is not possible to detect whether collection assembly 570 is installed in the proper position. In this case, since it cannot accurately determine whether collection assembly 570 can perform the function of collecting filtered impurities, the laundry machine will not run a washing program and will notify the user to perform inspection and repair.

[0309] In this embodiment, before starting the washing program, the washing machine first obtains the installation status of the collection assembly 570 using the position detection device, and starts the washing program only if the collection assembly 570 is installed in the appropriate position; if not, the washing machine is locked to prevent the washing program from running, thereby ensuring that the collection assembly 570 can effectively collect the filtered impurities during the operation of the washing machine and preventing microplastics from being discharged outside the washing machine along with the filtered impurities.

[0310] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any way. The present invention has been disclosed above by way of a preferred embodiment, but is not intended to limit the present invention. Those skilled in the art may make slight changes or modifications using the technical content described above to create equivalent embodiments that are equivalently changed, without departing from the technical spirit of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical spirit of the present invention still fall within the spirit of the present invention. [Explanation of symbols]

[0311] In the figure: 10 housing, 11 top wall, 12 front wall, 13 left side wall, 14 right side wall, 17 bottom wall, 18 lower opening, M first mounting space, N second mounting space, 100 water tank, 104 cylindrical wall, 110 window gasket, 210 upper discharge pipe, 220 intermediate pipe, 230 return pipe, 231 return control valve, 240 wastewater discharge pipe, 241 wastewater discharge control valve, 249 detection branch, 250 drain pipe, 260 water tank drain pipe, 270 switching device, 271 switching mechanism, 280 connecting pipe, 300 detergent case, 400 pump, 410 pump body, 420 filter, 500 wastewater receiving device, 510 casing, 531 first chamber, 532 second chamber, 560 Lint collection assembly, 570 collection assembly, 571 collection chamber, 572 collection chamber wall, 590 discharge pipe, 600 filtration device, 610 filtration chamber, 6101 water inlet, 6102 filtered water outlet, 6103 wastewater outlet, 620 filtration mechanism, 621 water outlet joint, 660 drive mechanism, 680 cleaning particles, 690 shielding plate, 691 water passage hole, 810 magnetic part, 820 reed switch, 821 first electrode, 822 second electrode, 823 signal output conductor, 900 detection device, 910 exterior, 911 water receiving chamber, 920 float, 930 sensor, 940 reed switch, 941 first electrode, 942 second electrode, 943 signal output conductor, 950 induction part.

Claims

1. 1. A filtration system for a laundry facility, comprising: a first filtration water channel driven by a pump, which drains water from a water tank of the laundry facility through at least a filter and a filtration device in this order to the outside of the laundry facility; A filtration system for a laundry facility, characterized in that it comprises a second filtration water channel that drains water from the filtration device to the outside of the laundry facility via a wastewater receiving device having a filtration function and the pump.

2. 2. The filtration system of claim 1, wherein the second filtration water channel passes through at least a pump, merges with the first filtration water channel, and then discharges the water to the outside.

3. The pump is installed on the first filtration water passage between the water tank and the filtration device, The filtration system of a laundry facility according to claim 2, characterized in that in the second filtration water channel, the wastewater receiving device is connected to the pump or to a portion of the first filtration water channel located between the water tank and the pump.

4. The filter is integrally installed inside the pump, and the first filtered water passage is a tank drain pipe for directing water from the tank to the pump; an intermediate pipe for conveying water from the pump to the filtration device; a drainage pipe for draining water to the outside of the laundry facility; 4. The filtering system for a laundry facility according to claim 3, wherein the wastewater receiving device is connected to an internal chamber of a pump, or the wastewater receiving device is connected to a water tank drain pipe via a pipe.

5. The filtration system for laundry equipment according to any one of claims 1 to 4, further comprising a wastewater discharge control device for controlling opening and closing of the second filtration water channel.

6. 6. The filtration system of claim 5, wherein the second filtration water channel includes a wastewater discharge pipe for directing water from the filtration device to the wastewater receiving device, and the wastewater discharge control device includes a wastewater discharge control valve installed on the wastewater discharge pipe.

7. The wastewater receiving device is installed below the filtering device, and the filtering device drains the wastewater into the wastewater receiving device along the wastewater discharge pipe by gravity; Preferably, the filtering device is installed above the height of the central axis of the water tank, and the wastewater receiving device is installed below the height of the central axis of the water tank, 7. The filtration system for a laundry facility according to claim 6, wherein the pump is preferably installed below the height of the central axis of the water tub.

8. The filtration system of any one of claims 1 to 7, further comprising a third filtration water passage driven by a pump, which passes from the water tank through at least a filter and a filtration device in that order, and then returns to the water tank.

9. Further provided is a switching device for controlling the first filtration water channel and the third filtration water channel to be selectively opened, Preferably, the first filtrate water passage includes a drain pipe for draining water to the outside of the laundry facility, and the third filtrate water passage includes a return pipe for returning water to the water tub, 9. The laundry equipment filtration system according to claim 8, wherein the switching device is connected to the filtration device, the drain pipe, and the return pipe, respectively, and controls the drain pipe and the return pipe to be selectively connected to the filtration device.

10. A laundry installation, characterized in that it comprises a laundry installation filtration system according to any one of claims 1 to 9.

11. 1. A laundry facility comprising: Aquarium and a filtering device for receiving and filtering water in a water tank, the filtering device being provided with a wastewater outlet for discharging wastewater containing filtered impurities; A washing facility characterized by comprising a wastewater receiving device that is connected to the wastewater discharge outlet of the filtering device, is installed at a position lower than the height of the wastewater discharge outlet, and receives the wastewater discharged from the filtering device.

12. The installation position of the filtering device is higher than the height of the central axis of the water tank, and the installation position of the wastewater receiving device is lower than the height of the central axis of the water tank, Preferably, the laundry equipment further comprises a housing, the water tub being installed inside the housing; 12. The laundry facility of claim 11, wherein a first mounting space is formed by the side wall of the housing, the top wall of the housing, and the cylindrical wall of the water tub, and a second mounting space is formed by the same side wall of the housing, the bottom wall of the housing, and the cylindrical wall of the water tub, and the filtering device is installed in the first mounting space, and the wastewater receiving device is installed in the second mounting space.

13. 13. The laundry facility according to claim 11 or 12, wherein the wastewater receiving device comprises a lint collecting assembly for filtering the wastewater received by the wastewater receiving device and collecting filtered impurities contained in the wastewater.

14. The laundry facility according to claim 13, further comprising a drainage device connected to the water tank for draining the wastewater outside the laundry facility, wherein the wastewater filtered in the wastewater receiving device is discharged outside the laundry facility through the drainage device.

15. The washing facility according to claim 14, wherein the drainage device comprises a pump whose water inlet is connected to the water tank, and a drainage pipe that receives water pressed out from the pump and discharges it outside the washing facility, the wastewater receiving device is connected to the pump, and the filtered wastewater is pumped from the pump to the drainage pipe and discharged.

16. The pump comprises a pump body, the wastewater receiving device is installed in contact with the pump body, the wastewater receiving device is installed above the pump body or installed horizontally on one side of the pump body, Alternatively, the washing equipment according to claim 15, wherein the pump comprises a pump body, the wastewater receiving device is installed at a distance from the pump body, and the wastewater receiving device and the pump body are connected via a discharge pipe.

17. 17. The laundry facility of claim 16, wherein the wastewater receiving device is installed at a distance from the pump body and communicates with the pump body via a discharge pipe, and the outlet of the wastewater receiving device for connecting the discharge pipe is higher than the inlet of the pump body for connecting the discharge pipe.

18. 18. The laundry facility according to claim 15, wherein the outlet of the pump is connected to the water inlet of a filtering device, the drain pipe is connected to the filtered water outlet of the filtering device, and the water pressed out from the pump is filtered by the filtering device and then discharged to the outside of the laundry facility along the drain pipe.

19. 19. The laundry facility of claim 18, further comprising a return pipe communicating with the water tank and a switching device communicating with the filtered water outlet of the filtration device, the switching device controlling the return pipe and the drain pipe to be selectively opened to the filtered water outlet of the filtration device.

20. A filter is installed between the inlet and outlet ends of the pump, and the water entering the pump is filtered by the filter and then forced out of the filter. Preferably, the size of the impurities that the filter can filter is larger than the size of the filtered impurities that the filtering device can filter, and the size of the filtered impurities that the filtering device can filter is equal to or larger than the size of the filtered impurities that the lint collecting assembly in the wastewater receiving device can collect.

21. 1. A filtration module comprising: a filtering device having a wastewater outlet for discharging wastewater containing filtered impurities; a wastewater receiving device for receiving wastewater discharged from the filtering device; a detection device for detecting whether a clog has occurred in the wastewater receiving device; A filtration module comprising a sewage discharge pipe for connecting a sewage receiving device and a sewage discharge outlet of a filtration device, the sewage discharge pipe being connected to a detection branch line for guiding sewage to a detection device when a blockage occurs in the sewage receiving device.

22. The detection device includes: an exterior having a water receiving chamber therein; 22. The filtration module of claim 21, further comprising a detection assembly for detecting the water level in the water receiving chamber, the detection assembly being capable of generating a feedback signal when the water level reaches a preset height.

23. The detection assembly includes: a float that is installed inside the water receiving chamber and moves up and down in response to changes in the water level inside the water receiving chamber; 23. The filtration module of claim 22, further comprising a sensor for detecting the height position of the float, the sensor generating a feedback signal when the float rises with the water surface to a preset height.

24. The filtration module of claim 23, characterized in that the float is magnetic, the sensor is a reed switch installed on the top of the exterior, and when the float moves with the water surface to a predetermined height, the reed switch becomes conductive due to the magnetic action of the float.

25. The filtration module described in claim 24, characterized in that the detection assembly further comprises an induction section, a hollow passage extending vertically within the induction section, the float is restricted in position within the hollow passage so as to move up and down with the water surface, and the reed switch is installed above the induction section.

26. A filtration module described in any one of claims 21 to 25, characterized in that a sewage discharge control valve for controlling the opening and closing of the sewage discharge pipeline is installed on the sewage discharge pipeline, one end of the detection branch path is connected to a detection device, and the other end is connected between the sewage discharge control valve and a sewage receiving device.

27. 27. The filtration module according to any one of claims 21 to 26, wherein the detection device is installed at the top of a wastewater discharge pipe.

28. 28. A laundry installation, characterized in that it comprises a filtration module according to any one of claims 21 to 27.

29. 29. A method for controlling a laundry facility as described in claim 28, characterized in that the laundry facility transmits an alarm signal when the detection device determines that a clog has occurred in the wastewater receiving device.

30. The detection device includes an exterior having a water receiving chamber therein, a float installed inside the water receiving chamber and moving up and down in response to changes in the water surface height, and a sensor for detecting the height position of the float.

30. The method of claim 29, wherein the sensor generates a feedback signal when the float moves above a preset height, and the laundry equipment issues an alarm signal if the laundry equipment continuously receives the feedback signal for more than a preset time.

31. 1. A filtration module comprising: a filtering device having a wastewater outlet for discharging wastewater containing filtered impurities; a wastewater receiving device having a collection assembly installed therein, the collection assembly having a collection chamber for collecting filtered impurities in the wastewater, the collection chamber communicating with a wastewater discharge port of the filtering device; and a position detection device for detecting whether the collection assembly is properly installed in the wastewater receiving device.

32. the wastewater receiving device comprises a storage casing, the collection assembly being mounted within the storage casing; 32. The filtration module of claim 31, wherein the position detection device comprises a detecting element / detected element mounted on the containment casing and a detected element / detecting element mounted on the collection assembly.

33. The detecting element is a reed switch mounted on the receiving casing, and the detected element is a magnetic component mounted on the collecting assembly; The filtration module of claim 32, characterized in that the position detection device further comprises a detection circuit, the reed switch is installed on the detection circuit, and when the collection assembly is installed in the appropriate position within the wastewater receiving device, the reed switch causes the detection circuit to conduct through the action of a magnetic component.

34. The filter module according to claim 33, wherein the reed switch is installed outside the receiving casing and closely attached to the outer wall of the receiving casing.

35. 35. The filtration module of claim 33 or 34, wherein the collection assembly comprises a collection chamber wall surrounding the collection chamber, and the magnetic component is embedded within the collection chamber wall.

36. a wastewater discharge line having one end connected to the wastewater discharge port of the filtering device and the other end passing through the side wall of the containing casing and communicating with the collection chamber of the collection assembly; A filtration module described in any one of claims 32 to 35, characterized in that the detection element is installed on the side wall of the containing casing through which the sewage discharge pipeline passes, and the detected element is installed on the collection assembly and is located on the side of the collection assembly that communicates with the sewage discharge pipeline.

37. 37. A laundry installation, characterized in that it comprises a filtration module according to any one of claims 31 to 36.

38. 38. A method of controlling a laundry installation as claimed in claim 37, comprising the steps of: receiving a command to start a washing program; and commencing operation of a washing program if it is determined that the collection assembly is properly installed.

39. 40. The method of claim 38, further comprising locking the laundry appliance and issuing an alarm signal if it is determined that the collection assembly is not properly installed.

40. the wastewater receiving device comprises a storage casing, the collection assembly is mounted inside the storage casing, the position detection device comprises a reed switch mounted on the storage casing and a magnetic component mounted on the collection assembly, the reed switch is mounted on a detection circuit; 40. The method of claim 38 or 39, wherein after the washing machine receives a command to start a washing program, if the detection circuit is in a conductive state, it determines that the collecting assembly is properly installed, and / or if the detection circuit is in a disconnected state, it determines that the collecting assembly is not properly installed.

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