Drainage pump for washing device, drainage waterway and washing device

Abstract

The invention discloses a draining pump for a washing device, which comprises a pump body and a pump cover for plugging the pump body, and further comprises a sensor for detecting water quality parameters in the draining pump; wherein the detection end of the sensor extends into the pump body from the inner surface of the pump cover so as to obtain the water quality condition in the pump body; the electric connection end of the sensor is convexly arranged on the outer surface of the pump cover and is electrically connected with an external power supply and a signal of the pump body; and when the pump cover is separated from the pump body, the sensor can be separated from the pump body along with the pump cover, so that the sensor can be quickly disassembled and assembled. The invention further provides the drainage waterway for the washing device and the washing device. The pump cover of the drainage pump is combined with the sensor to detect the stain index of the washing water flowing through the drainage pump, the washing degree in the washing process can be objectively displayed, the sensor is easier and more convenient to disassemble and wash, the problem that an existing sensor cannot be disassembled and washed is solved, and the washing efficiency is improved. And the reduction of the precision of the sensor caused by long-term use is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of washing machines, and specifically relates to a drainage pump for a washing device, a drainage water path for a washing device, and a washing device. Background Art

[0002] Currently, washing devices such as washing machines and dishwashers often use an independent stain index sensor to detect the stain index of the washing water during the washing process. This sensor determines whether the object to be washed is clean based on the stain index of the washing water. Among them, the stain index reflects the content of soluble and insoluble pollutants in the water. Therefore, whether it is clean is usually judged according to the value of the stain index, and then the washing program is controlled.

[0003] However, such sensors in existing washing devices are usually installed at the water storage place of the washing device, for example, set in the outer cylinder of the washing machine or the inlet and outlet water pipelines. During the actual washing process, this installation method may cause the readings to be affected by the water flow and the foam generated by the detergent, and cannot accurately reflect the water quality situation in the washing device. In addition, after long-term use, the sensor itself may be contaminated, affecting subsequent use, and the installation positions of the outer cylinder and the pipeline may make it difficult to disassemble and clean the sensor. The existing washing devices with stain index sensors may not meet the actual washing requirements.

[0004] Therefore, it is necessary to provide a new method to solve the above technical problems. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, an object of the present invention is to provide a drainage pump for a washing device. By combining the pump cover of the drainage pump with a sensor, the stain index of the washing water flowing through the drainage pump is detected, which can objectively display the washing degree during the washing process, and the disassembly and cleaning of the sensor become more convenient, solving the problem that the existing sensor cannot be disassembled and cleaned, and effectively avoiding the decline of the sensor accuracy caused by long-term use.

[0006] The technical solution of the present invention is outlined as follows:

[0007] One object of the present invention is to provide a drainage pump for a washing device, including a pump body and a pump cover for sealing the pump body, and further including:

[0008] A sensor for detecting the water quality parameters in the drainage pump. Among them,

[0009] The detection end of the sensor extends into the pump body from the inner surface of the pump cover to obtain the water quality situation in the pump body;

[0010] The electrical connection terminal of the sensor protrudes from the outer surface of the pump cover to electrically connect to an external power supply and signals of the pump body;

[0011] When the pump cover is separated from the pump body, the sensor can be detached from the pump body together with the pump cover to achieve quick disassembly and assembly of the sensor.

[0012] Preferably, the sensor and the pump cover are detachably installed.

[0013] Preferably, the connection method between the sensor and the pump cover includes threaded connection or adhesive sealing connection.

[0014] Preferably, the pump cover and the sensor are manufactured as an integral body.

[0015] Preferably, a filter element is provided outside the periphery of the detection end.

[0016] Preferably, a water inlet interface and a water drainage interface are formed on the outer side of the pump body, and the water inlet interface is arranged closer to the sensor than the water drainage interface.

[0017] Preferably, the sensor includes a turbidity sensor or a TOC sensor or a sensor including a comprehensive index of turbidity and TOC.

[0018] The second object of the present invention is to provide a drainage waterway for a washing device, and the drainage waterway includes the drainage pump for the washing device as described above.

[0019] The third object of the present invention is to provide a washing device, including: a box body and the drainage pump for the washing device as described above installed on the box body.

[0020] Preferably, the box body includes a hinged cover plate for opening and closing the installation and disassembly position of the pump cover.

[0021] Preferably, it further includes: an electrical connection wire, one end of which is connected to the control circuit of the washing device, and the other end passes through the inner wall of the box body and enters the installation and disassembly position to be electrically connected to the electrical connection terminal.

[0022] Preferably, a coupling member is provided on the inner side of the cover plate, and both ends of the coupling member are electrically connected to the electrical connection wire and the electrical connection terminal respectively; wherein, when the cover plate is opened, the coupling member is detached from the electrical connection terminal to disconnect the circuit.

[0023] Preferably, a plug-in member protrudes from the inner surface of the cover plate, one end of which is electrically connected to the electrical connection wire, and the other end is used to contact or disengage from the electrical connection terminal when the cover plate is closed or opened to achieve circuit conduction and disconnection.

[0024] A fourth object of the present invention is to provide a drainage pump for a washing device, including a pump body and a pump cover for sealing the pump body, and further including:

[0025] A sensor for detecting water quality parameters inside the drainage pump; wherein,

[0026] The detection end of the sensor extends into the pump body from the inner surface of the pump cover to obtain the water quality condition inside the pump body;

[0027] A power supply module and a signal transmission module are arranged inside the sensor. The power supply module is used to supply power to the sensor, and the signal transmission module is used to transmit the detection data of the sensor;

[0028] When the pump cover is separated from the pump body, the sensor can be detached from the pump body together with the pump cover to achieve quick disassembly and assembly of the sensor.

[0029] Preferably, the signal transmission module is a wireless transceiver module.

[0030] A fifth object of the present invention is to provide a drainage water path for a washing device, and the drainage water path includes the drainage pump for a washing device as described above.

[0031] A sixth object of the present invention is to provide a washing device, including: a box body and the drainage pump for a washing device as described above installed on the box body.

[0032] A seventh object of the present invention is to provide a drainage control method for a washing device, including configuring the washing device as described above to perform the following steps:

[0033] Obtain the water quality parameters inside the drainage pump;

[0034] Configure the operation of the drainage pump according to the water quality parameters.

[0035] Preferably, it further includes the step of indicating the cleaning state of the drainage pump filter according to the water quality parameters.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0037] The present invention provides a drainage pump for a washing device. By combining the pump cover of the drainage pump with a sensor, it can detect the stain index of the washing water flowing through the drainage pump to obtain the stain index value of the washing water at this position, which can objectively display the cleaning degree of the washing process and provide the possibility for efficient washing. Moreover, there is no easy occurrence of foam jamming in the drainage pump, and it is less affected by the water flow. Therefore, the reading of the sensor at this position has high accuracy. And by combining the sensor with the pump cover of the drainage pump, the disassembly and cleaning of the sensor become more convenient, solving the problem that the existing sensor cannot be disassembled and cleaned, and effectively avoiding the decline of the sensor accuracy caused by long-term use.

[0038] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following takes the preferred embodiments of the present invention and combines the drawings to describe in detail as follows. The specific implementation manners of the present invention are given in detail by the following embodiments and their accompanying drawings. Brief Description of the Drawings

[0039] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0040] Figure 1 It is a schematic diagram of the overall structure of the drainage pump for a washing device in the present invention;

[0041] Figure 2 It is a schematic diagram of the assembly structure of the pump body, pump cover and sensor in the present invention;

[0042] Figure 3 It is a schematic diagram of the detachable installation structure of the pump cover and the sensor in the present invention;

[0043] Figure 4 It is a sectional view structure diagram of the drainage pump for a washing device in the present invention;

[0044] Figure 5 It is a schematic diagram of the overall structure of the washing device in the present invention;

[0045] Figure 6 It is a schematic diagram of the assembly relationship between the plug-in part on the cover plate and the electrical connection end of the sensor in the present invention.

[0046] In the figure: 1, washing device;

[0047] 10, drainage pump; 11, pump body; 111, water inlet interface; 112, water drainage interface; 113, drainage cavity; 12, pump cover; 13, sensor; 131, detection end; 132, electrical connection end;

[0048] 20. Housing; 21. Cover plate; 211. Connector. Detailed implementation mode

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0050] In the drawings, for clarity, the shapes and dimensions may be enlarged, and the same reference numerals will be used throughout the drawings to indicate the same or similar components.

[0051] In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are defined with respect to the structures shown in the respective drawings. In particular, "height" corresponds to the dimension from the top to the bottom, "width" corresponds to the dimension from the left to the right, and "depth" corresponds to the dimension from the front to the back. They are relative concepts and may therefore change accordingly depending on their different positions and usage states. Therefore, these or other orientations should not be construed as restrictive terms.

[0052] Terms related to attachment, connection, etc. (e.g., "connect" and "attach") refer to the relationship in which these structures are directly or indirectly fixed or attached to each other through an intermediate structure, as well as a movable or rigid attachment or relationship, unless otherwise explicitly stated.

[0053] Embodiment 1

[0054] An embodiment of the present invention provides a drainage pump 10 for a washing device 1, in combination with Figures 1-4 As shown, it includes a pump body 11 and a pump cover 12 for sealing the pump body 11, and further includes:

[0055] A sensor 13 for detecting water quality parameters in the drainage pump 10; wherein,

[0056] The detection end 131 of the sensor 13 extends into the pump body 11 from the inner surface of the pump cover 12 to obtain the water quality situation in the pump body 11;

[0057] The electrical connection end 132 of the sensor 13 protrudes from the outer surface of the pump cover 12 to electrically connect to the external power supply and signal of the pump body 11;

[0058] When the pump cover 12 is separated from the pump body 11, the sensor 13 can be detached from the pump body 11 together with the pump cover 12, so as to realize the quick disassembly and assembly of the sensor 13.

[0059] Wherein, a drainage cavity 113 is formed inside the pump body 11 for accommodating washing water. The detection end 131 of the sensor 13 can extend into the drainage cavity 113 when the pump cover 12 is installed on the pump body 11, so as to detect the stain index of the washing water in the drainage cavity 113. In this embodiment, by combining the pump cover 12 of the drainage pump 10 with the sensor 13, the stain index of the washing water flowing through the drainage pump 10 is detected to obtain the stain index value of the washing water at this position, which can objectively display the washing degree of the washing process and provide the possibility for efficient washing. And because the drainage pump 10 is arranged at the end of the water circuit system of the washing device 1, during the washing process, the water body in the drainage pump 10 is the most stable, there is no easy foam jamming phenomenon in the drainage pump 10, and it is less affected by the water flow. Therefore, the reading of the sensor 13 here has higher accuracy. Moreover, by combining the sensor 13 with the pump cover 12 of the drainage pump 10, the disassembly and cleaning of the sensor 13 become more convenient, solving the problem that the existing sensor 13 cannot be disassembled and cleaned, and effectively avoiding the decrease in the accuracy of the sensor 13 caused by long-term use.

[0060] In one embodiment, as Figure 3 shown, the sensor 13 and the pump cover 12 are detachably installed; after the pump cover 12 is detached from the pump body 11, the sensor 13 can be detached from the pump cover 12, so as to facilitate the cleaning of the sensor 13 to ensure its detection accuracy, and also facilitate the quick disassembly and replacement of components when damaged. In some preferred embodiments, the sensor 13 and the pump cover 12 are connected by threads, which has a simple structure, reliable connection and good stability. In some other preferred embodiments, the sensor 13 and the pump cover 12 are connected by snap fits, which has a convenient, quick and easy-to-operate disassembly and assembly structure. Further, a sealing structure is provided between the pump cover 12 and the sensor 13. Preferably, the pump cover 12 and the sensor 13 are sealed by an O-ring. In some other preferred embodiments, the sensor 13 and the pump cover 12 are adhesively and hermetically connected, and this assembly structure has good stability while ensuring the sealing performance, without the need for an additional sealing structure.

[0061] In another embodiment, the pump cover 12 and the sensor 13 are manufactured as an integral body; its compact design can have higher stability, thus ensuring the detection accuracy, and only by installing the pump cover 12 on the pump body 11 can the assembly of the sensor 13 and the drainage cavity 113 be completed. Further, the manufacturing methods of the pump cover 12 and the sensor 13 include overall 3D printing of the housing, overall injection molding of the housing, etc.

[0062] In one embodiment, a filter element is provided outside the periphery of the detection end 131. Specifically, when the washing water is discharged to the outside of the washing device 1 by the drain pump 10, it is inevitable that impurities such as lint and fluff are mixed in the washing water. Therefore, by providing a filter element outside the periphery of the detection end 131 of the sensor 13, when the washing water flows through the sensor 13, the lint and fluff in the washing water can be intercepted outside the filter element, preventing the contamination of the detection end 131 of the sensor 13 and thus affecting its performance and service life.

[0063] Furthermore, the filter element is detachably installed with the sensor 13; when it is necessary to clean the impurities of the filter element, the user can detach the pump cover 12 together with the sensor 13 and the filter element from the pump body 11, and then detach the filter element from the sensor 13 to perform the cleaning.

[0064] In one embodiment, a water inlet interface 111 and a water drain interface 112 communicating with the drain cavity 113 are formed outside the pump body 11; when the washing device 1 performs a drainage program, the drain pump 10 works, the washing water enters the drain cavity 113 through the water inlet interface 111, and then is discharged from the drain cavity 113 to the water drain interface 112, and the sensor 13 detects the stain index of the washing water on this drainage path; furthermore, the water inlet interface 111 is arranged closer to the sensor 13 than the water drain interface 112 to ensure sufficient contact between the sensor 13 and the water flow, thereby ensuring the detection accuracy of the sensor 13.

[0065] In one embodiment, the sensor 13 includes a turbidity sensor or a TOC sensor or a sensor including the comprehensive index of turbidity and TOC, which is used to sense the dissolved substances, impurities and stains in the washing water in the pump body 11 and feedback to the main control board of the washing device.

[0066] Embodiment 2

[0067] The embodiment of the present invention further provides a drainage water path for a washing device, and the drainage water path includes a drain pump for a washing device as described in Embodiment 1.

[0068] In this embodiment, the sensor 13 of the drain pump 10 detects the stain index of the flowing washing water to obtain the stain index value of the washing water at this position, which can objectively display the washing degree of the washing process and provide the possibility for efficient washing; and since the drain pump 10 is arranged at the end of the drainage water path of the washing device 1, during the washing process, the water body in the drain pump 10 is the most stable, there is no easy foam jamming phenomenon in the drain pump 10, and it is less affected by the water flow. Therefore, the reading of the sensor 13 here has high accuracy.

[0069] Embodiment 3

[0070] An embodiment of the present invention further provides a washing device 1, which combines with Figures 1-6 As shown, it includes: a box body 20 and a drainage pump 10 for the washing device 1 as described in Embodiment 1 installed in the box body 20.

[0071] The sensor 13 is a stain index sensor 13. By obtaining the stain index value of the washing water in the drainage chamber 113, it can objectively display the cleaning degree during the washing process. Among them, detecting the stain index value during the main washing process can reflect whether the dirt is washed clean, and detecting the stain index value during the rinsing process can reflect whether the washing liquid is rinsed clean.

[0072] Furthermore, it is possible to determine whether it is necessary to optimize the rinsing according to the stain index value of the washing water in the drainage chamber 113. For example, if the stain index value is high during drainage, it means that it is not rinsed clean. The program can be set to automatically perform another rinse after the selected number of rinsing times to meet the requirements. Or if the stain index value during drainage meets the rinsing requirements before reaching the set number of rinsing times, the rinsing can be directly ended. In this way, the washing process can be optimized through the stain index value of the drainage chamber 113 to achieve efficient washing.

[0073] In this embodiment, by combining the pump cover 12 of the drainage pump 10 with the sensor 13, since the drainage pump 10 is arranged at the end of the water circuit system of the washing device 1, during the washing process, the water body in the drainage chamber 113 of the drainage pump 10 is the most stable, and there is less likely to be foam jamming in the drainage pump 10, and it is less affected by the water flow. Therefore, the reading of the sensor 13 here has higher accuracy. And by combining the sensor 13 with the pump cover 12 of the drainage pump 10, the disassembly and cleaning of the sensor 13 become more convenient, solving the problem that the existing sensor 13 cannot be disassembled and cleaned, and effectively avoiding the decline in the accuracy of the sensor 13 caused by long-term use.

[0074] In one embodiment, the box body 20 includes a hinged cover plate 21 for opening and closing the installation and disassembly position of the pump cover 12. When it is necessary to clean or replace the sensor 13, the user only needs to open the cover plate 21 to operate the pump cover 12, improving the operation convenience.

[0075] Furthermore, it further includes: an electrical connection line, one end of which is connected to the control circuit of the washing device 1, and the other end passes through the inner wall of the box body 20 into the installation and disassembly position to be electrically connected to the electrical connection end to realize the transmission of signal data and the power supply of the sensor 13. By passing the electrical connection line to the inside of the cover plate 21, it is beneficial to the regularity of the wiring harness layout and optimizes the wiring method between the sensor 13 and the control circuit of the washing device 1, facilitating the disassembly and assembly operations.

[0076] In one embodiment, a coupling member is provided inside the cover plate 21, and both ends thereof are electrically connected to the electrical connection line and the electrical connection terminal 132 respectively; wherein, when the cover plate 21 is opened, the coupling member is separated from the electrical connection terminal to disconnect the circuit.

[0077] In some preferred embodiments, the coupling member can be set as an elastic pull wire. One end of the pull wire can be fixedly connected to the electrical connection line, and the other end is a pull wire head and is detachably connected to the electrical connection terminal 132. That is, when the pull wire head contacts the electrical connection terminal 132, the electrical connection line is electrically connected to the electrical connection terminal 132. When the cover plate 21 is opened and the pull wire is pulled to separate from the electrical connection terminal 132, the electrical connection line is disconnected from the electrical connection terminal 132. For example, when installing the sensor 13, after the pump cover 12 and the pump body 11 are assembled, the pull wire head is brought into contact with the electrical connection terminal 132 to conduct the electrical connection line and the electrical connection terminal 132, and then the cover plate 21 is closed to complete the installation and conduction of the sensor 13. When disassembling the sensor 13, the cover plate 21 is opened and the pull wire head is disconnected from the electrical connection terminal 132, and then the pump cover 12 is disassembled from the pump body 11 to achieve the disassembly of the sensor 13. It should be noted that the power-off operation of the electrical connection line and the electrical connection terminal 132 can be to pull the pull wire when the cover plate 21 is opened to make the pull wire head separate from the electrical connection terminal 132 for power-off, or to manually remove the pull wire head from the electrical connection terminal 132 for power-off after the cover plate 21 is opened.

[0078] In still some other preferred embodiments, the coupling member can also be set as an elastic conductive rod. One end thereof is connected to the electrical connection line, and the other end is detachably connected to the electrical connection terminal 132. When the cover plate 21 is opened and the conductive rod is pulled to separate from the electrical connection terminal 132, the electrical connection line is disconnected from the electrical connection terminal 132.

[0079] In one embodiment, a detachable adapter is provided inside the cover plate 21. One end thereof is used for electrically connecting to the electrical connection line, and the other end is used for contacting the electrical connection terminal 132 to achieve conduction.

[0080] To further improve safety and operation convenience, in still some other preferred embodiments, such as Figure 6As shown, a plug-in member 211 is convexly provided on the inner surface of the cover plate 21. One end of the plug-in member is electrically connected to the electrical connection line, and the other end is used to contact or disengage from the electrical connection end 132 when the cover plate 21 is closed or opened, so as to realize the conduction and disconnection of the circuit; this method is quick to operate and simple in steps, and only by opening and closing the cover plate 21 can the sensor 13 be quickly connected and disconnected from the power supply. Further, the electrical connection end 132 is a socket structure, and its shape is adapted to that of the plug-in member 211; during the closing process of the cover plate 21, the plug-in member 211 is pushed into the socket structure to realize the conduction between the electrical connection end 132 and the electrical connection line; further, the plug-in member 211 and the cover plate 21 are integrally designed; further, a positioning structure is provided between the plug-in member 211 and the socket structure to ensure accurate connection.

[0081] Embodiment 4

[0082] The embodiment of the present invention further provides a drainage pump 10 for a washing device 1, including a pump body 11 and a pump cover 12 for sealing the pump body 11, and further including:

[0083] A sensor 13 for detecting water quality parameters in the drainage pump 10; wherein,

[0084] The detection end 131 of the sensor 13 extends into the pump body 11 from the inner surface of the pump cover 12 to obtain the water quality condition in the pump body 11;

[0085] A power supply module and a signal transmission module are arranged inside the sensor 13. The power supply module is used to supply power to the sensor 13, and the signal transmission module is used to transmit the detection data of the sensor 13;

[0086] When the pump cover 12 is separated from the pump body 11, the sensor 13 can be detached from the pump body 11 together with the pump cover 12 to realize the quick disassembly and assembly of the sensor 13.

[0087] Wherein, the power supply module is a rechargeable power supply or a replaceable battery; the signal transmission module receives the detection signal sent by the detection end 131 and transmits it to the control terminal of the washing device 1.

[0088] In some preferred embodiments, the signal transmission module is a wireless transceiver module; the power supply module is used to supply power to the sensor 13 and the wireless transceiver module, and the wireless transceiver module receives the signal sent by the detection end 131 and transmits it to the wireless data transmission module of the control circuit of the washing device 1.

[0089] It should be noted that the signal transmission module can also be configured to transmit the detection data of the sensor 13 to the control terminal of the washing device 1 by means of wired transmission.

[0090] In this embodiment, by combining the pump cover 12 of the drainage pump 10 with the sensor 13, the stain index of the washing water flowing through the drainage pump 10 is detected to obtain the stain index value of the washing water at this position, which can objectively display the cleaning degree of the washing process and provide the possibility for efficient washing. Moreover, since the drainage pump 10 is arranged at the end of the water circuit system of the washing device 1, during the washing process, the water body in the drainage pump 10 is the most stable, there is less likely to be foam jamming in the drainage pump 10, and it is less affected by the water flow. Therefore, the reading of the sensor 13 here has higher accuracy. In addition, by combining the sensor 13 with the pump cover 12 of the drainage pump 10, the disassembly and cleaning of the sensor 13 become more convenient, solving the problem that the existing sensor 13 cannot be disassembled and cleaned, and effectively avoiding the decline in the accuracy of the sensor 13 caused by long-term use.

[0091] Embodiment 5

[0092] An embodiment of the present invention further provides a drainage water circuit for a washing device, and the drainage water circuit includes the drainage pump 10 for a washing device as described in Embodiment 5.

[0093] Furthermore, it is possible to determine whether it is necessary to optimize the rinsing according to the stain index value of the washing water in the drainage cavity 113. For example, if the stain index value is high during drainage, it indicates that it has not been rinsed clean. The program can be set to automatically perform another rinse after the selected number of rinsing times to meet the requirements. Or if the stain index value of the drainage meets the rinsing clean requirement before the set number of rinsing times is reached, the rinsing can be directly ended. In this way, the washing process can be optimized through the stain index value of the drainage cavity 113 to achieve efficient washing.

[0094] Embodiment 6

[0095] An embodiment of the present invention further provides a washing device, including: a cabinet 20 and the drainage pump 10 for a washing device as described in Embodiment 5 installed in the cabinet 20.

[0096] Furthermore, it further includes: a wireless data transmission module, which is connected to the control circuit of the washing device 1 and is used for data communication with the sensor 13.

[0097] In this embodiment, by combining the pump cover 12 of the drainage pump 10 with the sensor 13, since the drainage pump 10 is arranged at the end of the water circuit system of the washing device 1, during the washing process, the water body in the drainage cavity 113 of the drainage pump 10 is the most stable, there is less likely to be foam jamming in the drainage pump 10, and it is less affected by the water flow. Therefore, the reading of the sensor 13 here has higher accuracy. In addition, by combining the sensor 13 with the pump cover 12 of the drainage pump 10, the disassembly and cleaning of the sensor 13 become more convenient, solving the problem that the existing sensor 13 cannot be disassembled and cleaned, and effectively avoiding the decline in the accuracy of the sensor 13 caused by long-term use.

[0098] Example 7

[0099] An embodiment of the present invention further provides a drainage control method for a washing device, including configuring the washing device as described in Embodiment 3 or Embodiment 6 to perform the following steps:

[0100] Obtain the water quality parameters in the drain pump 10;

[0101] Configure the operation of the drain pump 10 according to the water quality parameters.

[0102] In some preferred embodiments, the step of obtaining the water quality parameters in the drain pump 10 includes:

[0103] Determine several water quality monitoring time points at any washing stage;

[0104] Based on the water quality monitoring time points, perform multiple monitors in the drain pump 10 to obtain several water quality index values in the drain pump 10;

[0105] Eliminate the abnormal data among the several water quality index values, and calculate the arithmetic mean of the several water quality index values;

[0106] Take the arithmetic mean as the water quality parameter.

[0107] Among them, the abnormal data includes the data with a sudden increase in the water quality index value after being impacted by the water flow.

[0108] In some preferred embodiments, the step of configuring the operation of the drain pump 10 according to the water quality parameters includes:

[0109] Judge whether the water quality parameter exceeds the standard parameter value;

[0110] If so, open the drainage water path, and the washing water is discharged from the washing device through the drain pump 10.

[0111] Furthermore, the standard parameter value includes the drainage demand threshold in the main washing stage and / or the recycled water demand threshold in the rinsing stage; wherein, the drainage demand threshold in the main washing stage is the maximum value of the stain index of the washing water allowed in the main washing stage, that is, it is impossible to continue using the current washing water to perform the main washing program, and it is necessary to drain water immediately or drain a part of the water and then re-enter the water for washing; the recycled water demand threshold in the rinsing stage is the maximum value of the stain index of the recycled water allowed in the rinsing stage, that is, it is impossible to continue using the current recycled water to perform the rinsing program, and it is necessary to drain water and then re-enter the water for rinsing.

[0112] In this embodiment, by obtaining the water quality of the washing water in the drain pump 10, the washing degree of the washing process can be objectively displayed and it can be determined whether drainage needs to be performed; for example, detecting the stain index value during the main washing process can reflect whether the dirt is washed clean, and detecting the stain index value during the rinsing process can reflect whether the washing liquid is rinsed clean.

[0113] Furthermore, it is possible to determine whether it is necessary to optimize the rinsing according to the stain index value of the washing water in the drain cavity 113. For example, if the stain index value is high during drainage, it indicates that it has not been rinsed clean. The program can be set to automatically perform another rinse after the selected number of rinsing times to meet the requirements. Or if the stain index value during drainage meets the rinsing requirement before reaching the set number of rinsing times, the rinsing can be directly ended. In this way, the washing process can be optimized through the stain index value of the drain cavity 113 to achieve efficient washing.

[0114] In one embodiment, it further includes the step of indicating the cleaning state of the filter screen of the drain pump 10 according to the water quality parameter; the specific steps are as follows:

[0115] After the next water inlet of the washing device, obtain the water quality parameter at the filter screen of the current drain pump 10;

[0116] Judge whether the water quality parameter exceeds a preset parameter value; wherein, the preset parameter value is the maximum value of the stain index allowed at the filter screen of the drain pump 10 after water inlet or the maximum value allowed for the difference from the initial water quality parameter of the water inlet.

[0117] If so, issue a reminder to clean the filter screen of the drain pump 10.

[0118] By detecting the water quality parameter at the filter screen of the drain pump 10 to judge the usage condition of the filter screen, thereby effectively playing the role of the filter screen of the drain pump 10, prolonging the service life of the filter screen, and reasonably controlling the quality of the drainage. For example, the washing water discharged outside the washing device and the recycled washing water can be optimized through the use of the filter screen of the drain pump 10; and it can be judged whether it is necessary to clean or replace the filter screen by judging whether the water quality parameter at the filter screen of the drain pump 10 is greater than the second preset threshold, effectively improving the intelligent control of the washing drainage, improving the washing effect and the user experience.

[0119] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. A drainage pump for a washing device, comprising a pump body and a pump cover for sealing the pump body, characterized in that, Further comprising: A sensor for detecting water quality parameters inside the drainage pump; wherein, The detection end of the sensor extends into the pump body from the inner surface of the pump cover to obtain the water quality condition inside the pump body; The electrical connection end of the sensor protrudes from the outer surface of the pump cover to electrically connect to the external power supply and signal of the pump body; When the pump cover is separated from the pump body, the sensor can be detached from the pump body together with the pump cover to achieve quick disassembly and assembly of the sensor.

2. The drainage pump for a washing device according to claim 1, characterized in that: The sensor and the pump cover are detachably installed.

3. The drainage pump for a washing device according to claim 2, characterized in that: The connection method between the sensor and the pump cover includes threaded connection or adhesive sealing connection.

4. The drainage pump for a washing device according to claim 1, characterized in that: The pump cover and the sensor are manufactured as an integral body.

5. The drainage pump for a washing device according to claim 1, characterized in that: A filter element is provided outside the periphery of the detection end.

6. The drainage pump for a washing device according to claim 1, characterized in that: An inlet interface and a drainage interface are formed on the outside of the pump body, and the inlet interface is arranged closer to the sensor than the drainage interface.

7. The drainage pump for a washing device according to claim 1, characterized in that: The sensor includes a turbidity sensor or a TOC sensor or a sensor including the comprehensive index of turbidity and TOC.

8. A drainage waterway for a washing device, characterized in that, The drainage water path includes the drainage pump for a washing device as described in claim 1.

9. A washing device, characterized in that, Comprising: A box body and the drainage pump for a washing device as described in claim 1 installed on the box body.

10. The washing device according to claim 9, characterized in that: The box body includes a hinged cover plate for opening and closing the installation and disassembly position of the pump cover.

11. The washing device according to claim 10, characterized in that, Further comprising: An electrical connection wire, one end of which is connected to the control circuit of the washing device, and the other end passes through the inner wall of the box body into the installation and disassembly position to be electrically connected to the electrical connection end.

12. The washing device according to claim 11, characterized in that: A coupling member is arranged on the inner side of the cover plate, and both ends thereof are electrically connected to the electrical connection wire and the electrical connection end respectively; wherein, when the cover plate is opened, the coupling member is detached from the electrical connection end to disconnect the circuit.

13. The washing device according to claim 11, characterized in that: A plug-in member protrudes from the inner surface of the cover plate, one end of which is electrically connected to the electrical connection wire, and the other end is used to contact or disengage from the electrical connection end when the cover plate is closed or opened to achieve circuit conduction and disconnection.

14. A drainage pump for a washing device, comprising a pump body and a pump cover for sealing the pump body, characterized in that, Further comprising: A sensor for detecting water quality parameters inside the drainage pump; wherein, The detection end of the sensor extends into the pump body from the inner surface of the pump cover to obtain the water quality condition inside the pump body; A power module and a signal transmission module are arranged inside the sensor, the power module is used to supply power to the sensor, and the signal transmission module is used to transmit the detection data of the sensor; When the pump cover is separated from the pump body, the sensor can be detached from the pump body together with the pump cover to achieve quick disassembly and assembly of the sensor.

15. The drainage pump for a washing device according to claim 14, characterized in that: The signal transmission module is a wireless transceiver module.

16. A drainage water path for a washing device, characterized in that, The drainage water path includes the drainage pump for a washing device as described in claim 14.

17. A washing device, characterized in that, Comprising: A box body and the drainage pump for a washing device as described in claim 14 installed on the box body.

18. A drainage control method for a washing device, characterized in that, Including a washing device configured as described in claim 9 or 17 to perform the following steps: Obtain the water quality parameters inside the drainage pump; Configure the operation of the drainage pump according to the water quality parameters.

19. The drainage control method for a washing device according to claim 18, characterized in that, Further including the step of indicating the cleaning state of the drainage pump filter screen according to the water quality parameters.

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