Water inlet device, dish washing machine and control method of dish washing machine

Abstract

The invention discloses a water inlet device, a dish-washing machine and a control method of the dish-washing machine, and the water inlet device is used for the dish-washing machine and comprises a water softener with a resin cavity and a salt cavity; the mixed water tank is provided with a mixing cavity, the salt cavity is connected with the mixing cavity through a first water path, and the resin cavity is connected with the mixing cavity through a second water path; the first sensor is arranged in the mixing water tank and is used for detecting the conductivity of the liquid in the mixing cavity; the flow control piece is connected to the first water path in series and used for controlling the amount of liquid conveyed into the mixing cavity from the salt cavity, and the flow control piece is electrically connected with the first sensor; and the electrolysis module is connected with the mixed water tank and is configured to electrolyze water conveyed to the electrolysis module from the mixed water tank. According to the water inlet device, the conveying amount of the salt solution can be dynamically adjusted through the first sensor and the flow control piece so as to adjust and control the conductivity of the electrolytic stock solution, the operation power and energy consumption of the electrolysis module are reduced, tableware is cleaned through the electrolysis generated solution, the use cost of the dish washing machine is reduced, and potential health hazards are avoided.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to a water inlet device, a dishwasher, and a control method for the dishwasher. Background Technology

[0002] In related technologies, dishwashers primarily rely on the combined effects of high-temperature hot water, high-pressure spray rinsing, and specialized washing consumables to decompose grease and clean tableware. High temperature and high-pressure spray physically remove food residue, and the washing consumables enhance degreasing, water softening, and rinsing effects, ensuring that cleaning and disinfection meet standards. However, this method is highly dependent on consumables such as dishwasher powder, dishwasher tablets, water softening salt, and rinsing agents, which increases user costs in the long run. Furthermore, chemical components can easily remain on the surface of tableware, the inner walls of the dishwasher, and in the pipes, potentially entering the body with food and posing health risks. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a water inlet device, which can dynamically adjust the brine delivery rate through a first sensor and a flow control component to regulate the conductivity of the electrolytic feed solution, thereby reducing the operating power and energy consumption of the electrolysis module.

[0004] The present invention also proposes a dishwasher having the above-described water inlet device.

[0005] The present invention also proposes a control method for a dishwasher.

[0006] According to a first aspect of the present invention, a water inlet device for a dishwasher includes: a water softener having a resin chamber and a brine chamber; a mixing tank having a mixing chamber, the brine chamber being connected to the mixing chamber via a first water passage, and the resin chamber being connected to the mixing chamber via a second water passage; a first sensor disposed in the mixing tank for detecting the conductivity of a liquid in the mixing chamber; a flow control element connected in series with the first water passage for controlling the amount of liquid delivered from the brine chamber to the mixing chamber, the flow control element being electrically connected to the first sensor; and an electrolysis module connected to the mixing tank, the electrolysis module being configured to electrolyze the water delivered from the mixing tank to the electrolysis module.

[0007] According to the water inlet device of the present invention, the amount of salt solution delivered can be dynamically adjusted by the first sensor and the flow control component to regulate the conductivity of the electrolyte, reduce the operating power and energy consumption of the electrolysis module, and use the generated electrolyte to clean tableware, thereby reducing the cost of using the dishwasher and avoiding health hazards.

[0008] In some embodiments, the flow control element is a water pump, or the flow control element is a control valve.

[0009] In some embodiments, the water inlet device further includes a control module connected to the first sensor and the flow control element. The control module controls the flow control element based on the conductivity value detected by the first sensor to control the amount of liquid delivered from the salt chamber to the mixing chamber.

[0010] In some embodiments, the water inlet device further includes a flow sensor for detecting the water inlet flow rate of the water inlet device. The flow sensor is electrically connected to the control module, and the control module controls the amount of liquid delivered from the salt chamber to the mixing chamber based on the water inlet flow rate detected by the flow sensor.

[0011] In some embodiments, the flow sensor is connected in series on the upstream side of the water softener in the direction of water inlet flow.

[0012] In some embodiments, the water inlet device further includes a second sensor, the second sensor being used to detect the water inlet conductivity of the water inlet device, and the second sensor being electrically connected to the control module.

[0013] In some embodiments, the first sensor is a TDS sensor, and / or the second sensor is a TDS sensor.

[0014] According to a second aspect of the present invention, a dishwasher includes an inner tank and a water inlet device according to a first aspect of the present invention, wherein the electrolysis module is connected to the inner tank and the electrolysis module is capable of supplying electrolyzed liquid to the inner tank.

[0015] According to the dishwasher of the present invention, the amount of salt solution delivered can be dynamically adjusted by a first sensor and a flow control device to regulate the conductivity of the incoming water, reduce the operating power and energy consumption of the electrolysis module, and generate acidic or alkaline liquids for cleaning tableware, thereby reducing the cost of using the dishwasher and avoiding health hazards.

[0016] In some embodiments, the dishwasher further includes a third sensor disposed inside the inner tub, the third sensor being a TDS sensor.

[0017] In some embodiments, the electrolysis module has a first outlet and a second outlet. The first outlet is connected to the inner tank through a first flow path for supplying alkaline liquid to the inner tank, and the second outlet is connected to the inner tank through a second flow path for supplying acidic liquid to the inner tank.

[0018] According to a third aspect of the present invention, the dishwasher is a dishwasher according to a second aspect of the present invention, the control method includes: obtaining a target conductivity of the liquid in the mixing chamber; and controlling the amount of liquid delivered from the salt chamber to the mixing chamber according to the target conductivity.

[0019] According to the dishwasher control method of the present invention, the amount of salt solution delivered can be dynamically adjusted by a first sensor and a flow control device to regulate the conductivity of the electrolyte, reduce the operating power and energy consumption of the electrolysis module, and use the electrolyte generated to clean tableware, thereby reducing the cost of using the dishwasher and avoiding health hazards.

[0020] In some embodiments, obtaining the target conductivity of the liquid in the mixing chamber includes: obtaining the inlet conductivity and inlet flow rate of the water inlet device, obtaining the preset pH value of the liquid required for washing the inner tank, and obtaining the operating power of the electrolysis module; and deriving the target conductivity based on the inlet conductivity, the inlet flow rate, the preset pH value, and the operating power.

[0021] In some embodiments, the target conductivity is 300 mg / L-6000 mg / L.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a dishwasher according to an embodiment of the present invention; Figure 2 This is a flowchart illustrating a dishwasher control method according to an embodiment of the present invention.

[0024] Figure label: 1000. Dishwasher; 100. Water inlet device; 10. Water softener; 11. Resin chamber; 12. Salt chamber; 20. Electrolysis module; 21. First outlet; 22. Second outlet; 31. First flow path; 32. Second flow path; 33. First water path; 34. Second water path; 40. Flow sensor; 50. Flow control components; 60. Mixing tank; 61. Mixing chamber; 70. First sensor; 80. Control module; 200, Inner liner; 300, Third sensor. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] The following is for reference. Figure 1 A water inlet device 100 according to an embodiment of the first aspect of the present invention is described.

[0027] like Figure 1 As shown, a water inlet device 100 according to a first aspect embodiment of the present invention is used in a dishwasher 1000 and includes: a water softener 10, a mixing tank 60, a first sensor 70, a flow control element 50, and an electrolysis module 20.

[0028] Specifically, the water softener 10 has a resin chamber 11 and a brine chamber 12; the mixing tank 60 has a mixing chamber 61, the brine chamber 12 is connected to the mixing chamber 61 through a first water passage 33, and the resin chamber 11 is connected to the mixing chamber 61 through a second water passage 34; a first sensor 70 is disposed in the mixing tank 60 to detect the conductivity of the liquid in the mixing chamber 61; a flow control element 50 is connected in series with the first water passage 33 to control the amount of liquid delivered from the brine chamber 12 to the mixing chamber 61, and the flow control element 50 is electrically connected to the first sensor 70; the electrolysis module 20 is connected to the mixing tank 60, and the electrolysis module 20 is configured to electrolyze the water delivered from the mixing tank 60 to the electrolysis module 20.

[0029] In some examples, such as Figure 1 As shown, the water softener 10 is internally divided into a resin chamber 11 and a salt chamber 12. The resin chamber 11 is filled with ion exchange resin, and the salt chamber 12 is used to store soft water regeneration salt (such as sodium chloride). The ion exchange resin can replace hardness ions such as calcium and magnesium in the incoming water through ion exchange, softening the incoming water to form softened water, reducing the hardness value of the incoming water, thereby reducing scale formation on the surface of the electrolysis module 20, preventing the electrolysis module 20 from failing and the water circuit from becoming clogged, and thus extending the service life of the electrolysis module 20. The soft water regeneration salt can be used to regenerate the ion exchange resin, maintaining the resin's water softening ability. At the same time, introducing soft water regeneration salt into the incoming water to form a brine solution can improve the conductivity of the incoming water and reduce the operating power of the electrolysis module 20. By setting up the water softener 10, the hardness of the incoming water can be reduced, scale formation in the electrolysis module 20 can be reduced, and water softening can be achieved. At the same time, the conductivity of the incoming water can be flexibly adjusted to improve the working efficiency of the electrolysis module 20.

[0030] In some examples, such as Figure 1As shown, the mixing chamber 61 provides ample space for the softened water and brine supplied by the water softener 10 to mix thoroughly. The brine chamber 12 delivers sodium chloride-containing brine to the mixing chamber 61 via the first water path 33, and the resin chamber 11 delivers softened water to the mixing chamber 61 via the second water path 34. The brine and softened water are uniformly mixed within the mixing chamber 61 to form the electrolyte stock solution. The conductivity of the electrolyte stock solution within the mixing chamber 61 is consistent, and its conductivity is greater than that of the inlet water. This reduces the operating power required by the electrolysis module 20, creating favorable conditions for the electrolysis module 20 to efficiently electrolyze the electrolyte stock solution. During assembly, one end of the first water path 33 and the second water path 34 are connected to the outlets of the brine chamber 12 and the resin chamber 11, respectively, and the other end is connected to the inlet of the mixing tank 60. By setting up the mixing tank 60, the softened water and brine can be fully mixed, providing space for adjusting the conductivity value of the electrolyte stock solution and improving the stability and reliability of the electrolysis module 20.

[0031] In some examples, such as Figure 1 As shown, the first sensor 70 can be a TDS (Total Dissolved Solids) sensor, an electrode conductivity sensor, an inductive conductivity sensor, an ultrasonic conductivity sensor, etc. Before the softened water and brine in the resin chamber 11 and the brine chamber 12 are introduced into the mixing chamber 61, only inlet water is introduced into the mixing chamber 61. At this time, the first sensor 70 can directly detect the conductivity of the inlet water. During the process of introducing the softened water and brine into the mixing chamber 61 and mixing the softened water and brine to form the electrolyte stock solution, the first sensor 70 can monitor the change in conductivity of the electrolyte stock solution in the mixing chamber 61 in real time. The detection data can be transmitted to the dishwasher 1000 through an electrical signal, or it can be directly presented in numerical form on the display panel of the dishwasher 1000, which is convenient for intuitive understanding of the water quality.

[0032] In this embodiment, by setting the first sensor 70, the conductivity data of the liquid in the mixing chamber 61 can be obtained in real time and accurately, providing a data basis for adjusting the brine delivery volume and ensuring that the electrolytic raw material always meets the requirements of the electrolysis module 20. At the same time, the detection function of the first sensor 70 can realize real-time monitoring of the influent water quality, promptly detect water quality abnormalities or water circuit failures, and improve the safety and intelligence level of the water inlet device 100.

[0033] In some examples, such as Figure 1As shown, the flow control component 50 can be a pump or valve. When the first sensor 70 detects that the conductivity of the electrolyte in the mixing chamber 61 is lower than the target value, the flow control component 50 can increase the opening or increase the pump speed to increase the amount of salt solution delivered from the salt chamber 12 to the mixing chamber 61. When the conductivity of the electrolyte approaches the target value, the flow control component 50 can decrease the opening, reduce the pump speed, or shut down directly to reduce the amount of salt solution delivered, thereby achieving dynamic adjustment of the conductivity of the electrolyte in the mixing chamber 61. By setting the flow control component 50 and electrically connecting it to the first sensor 70, the amount of salt solution delivered can be adjusted according to the received signal from the first sensor 70, controlling the delivery of salt solution, ensuring that the conductivity of the electrolyte is stable within the target range, and reducing the electrolysis energy consumption of the water inlet device 100.

[0034] It should be noted that the water inlet conductivity of the conventional dishwasher 1000 water inlet device 100 is relatively low. This not only makes the operating power and energy consumption of the electrolysis module 20 higher, but also imposes higher adaptation standards on the electronic control hardware of the dishwasher 1000, affecting the practical application adaptability of the dishwasher 1000.

[0035] In this embodiment, by setting a first sensor 70 in the water inlet device 100, the conductivity of the electrolyte in the mixing chamber 61 can be precisely controlled according to the different water quality conditions across the country, so that the conductivity is stably within the conductivity range required by the electrolysis module 20, thereby effectively adapting to the differences in water quality in different regions and taking into account the working efficiency and practical application effect of the electrolysis module 20.

[0036] In some examples, such as Figure 1 As shown, the outlet of the mixing tank 60 is connected to the inlet of the electrolysis module 20. Electrolytic stock solution with suitable conductivity, regulated by the mixing chamber 61, is delivered to the electrolysis module 20, where it electrolyzes to generate alkaline and acidic liquids. The alkaline liquid can be used in the washing process of the dishwasher 1000, replacing detergents to decompose and remove grease from the surface of tableware, achieving low-consumer or even consumable-free cleaning of the dishwasher 1000. This reduces the daily operating cost of the dishwasher 1000 and avoids health hazards caused by detergent residue. The acidic liquid can be used in the rinsing process of the dishwasher 1000, replacing disinfectants to sterilize and disinfect tableware. It also dissolves minerals remaining after alkaline washing, reducing scale buildup inside the dishwasher 1000 and on the surface of the tableware, thus reducing the frequency of daily cleaning and maintenance and extending the dishwasher's lifespan.

[0037] It should be noted that the cleaning effect of the dishwasher 1000 mainly relies on the synergistic effect of water temperature, rinsing pressure and washing consumables. The use of washing consumables not only increases the long-term operating cost of the dishwasher 1000, but also the residue of chemical washing consumables on the surface of tableware may have potential health effects. Furthermore, the washing wastewater generated after the use of consumables will also put a certain burden on the ecological environment.

[0038] In this embodiment, by installing an electrolysis module 20 in the water inlet device 100, the electrolyte can be directly electrolyzed into alkaline and acidic liquids that have both cleaning and disinfection functions, thus replacing traditional chemical washing consumables and disinfectants. While ensuring the cleaning and disinfection effects of the dishwasher 1000, this solves the problems of high consumable costs and the health risks associated with consumable residues. Furthermore, the alkaline and acidic liquids generated by electrolysis have no chemical additives and are easily biodegradable after use, reducing the environmental pollution of washing wastewater, aligning with the trend of green environmental protection, and improving the safety of the dishwasher 1000.

[0039] According to the embodiment of the present invention, the water inlet device 100 can monitor the change in conductivity of the electrolyte in the mixing chamber 61 in real time through the first sensor 70 and the flow control component 50, and dynamically adjust the salt solution delivery volume to regulate the conductivity of the electrolyte in the mixing chamber 61, ensuring that the electrolyte matches the operating requirements of the electrolysis module 20, reducing the operating power and energy consumption of the electrolysis module 20, enabling the electrolysis module 20 to efficiently generate alkaline and acidic liquids for cleaning tableware, reducing usage costs and avoiding health hazards.

[0040] In some embodiments of the present invention, such as Figure 1 As shown, the flow control component 50 can be a water pump or a control valve. For example, the flow control component 50 can be a water pump for actively delivering brine, achieving active and quantitative delivery of brine to adapt to different flow requirements. The water pump can be a micro gear pump to precisely control the brine delivery volume, suitable for low-flow, high-precision adjustment scenarios. Alternatively, the flow control component 50 can be a control valve for adjusting the brine flow rate through its opening degree. This has a simple structure and low cost, and can be flexibly selected according to the actual scenario. The control valve can be an electric proportional regulating valve to achieve linear control of the brine delivery volume, suitable for adjustment scenarios with different conductivity. Or, the control valve can be a solenoid valve to achieve rapid on / off switching of the brine delivery volume, suitable for scenarios requiring frequent adjustment. By selecting different types of flow control components 50, the water inlet device 100 can be adapted to different specifications of dishwashers 1000 and different usage scenarios, improving the versatility and adaptability of the water inlet device 100.

[0041] In some embodiments of the present invention, such as Figure 1As shown, the water inlet device 100 may further include a control module 80, which is connected to the first sensor 70 and the flow control element 50. The control module 80 controls the flow control element 50 based on the conductivity value detected by the first sensor 70 to control the amount of liquid delivered from the brine chamber 12 to the mixing chamber 61. The control module 80 can be a microcontroller, microprocessor, embedded controller, etc. The control module 80 pre-stores the target range and adjustment algorithm for the conductivity of the electrolyte. When the first sensor 70 transmits the detected electrolyte conductivity data to the control module 80, the control module 80 outputs a corresponding control signal to the flow control element 50 to control the amount of brine delivered. By controlling the flow control element 50 based on the conductivity value detected by the first sensor 70, the automatic adjustment of the brine delivery can be achieved without manual intervention, improving the intelligence level of the water inlet device 100 and ensuring the stability of the electrolyte conductivity in the mixing chamber 61.

[0042] In some embodiments of the present invention, such as Figure 1 As shown, the water inlet device 100 may further include a flow sensor 40, which is used to detect the water inlet flow rate of the water inlet device 100. The flow sensor 40 is electrically connected to the control module 80, and the control module 80 controls the amount of liquid delivered from the salt chamber 12 to the mixing chamber 61 based on the water inlet flow rate detected by the flow sensor 40. For example, the flow sensor 40 can be a turbine flow meter, ultrasonic flow meter, electromagnetic flow meter, vortex flow meter, etc. The installation position of the flow sensor 40 can be flexibly set. For example, the flow sensor 40 can be connected in series on the upstream side of the water softener 10 in the direction of water inlet flow to directly detect the inlet water flow rate entering the water inlet device 100. Alternatively, the flow sensor 40 can be connected in series between the mixing chamber 61 and the electrolysis module 20 to detect the flow rate of the electrolytic stock solution entering the electrolysis module 20, which is consistent with the inlet water flow rate. Or, the flow sensor 40 can be connected in series at the outlet of the electrolysis module 20. Since the acidic liquid and alkaline liquid generated by the electrolysis module 20 are not used simultaneously during the washing process of the dishwasher 1000, the detection value of the flow sensor 40 needs to be corrected in combination with the preset generation ratio of acidic liquid and alkaline liquid to indirectly calculate the inlet water flow rate.

[0043] In this embodiment, by setting a flow sensor 40, the inlet flow rate data of the water inlet device 100 can be collected in real time. The control module 80 can dynamically adjust the amount of brine delivered from the brine chamber 12 to the mixing chamber 61 based on the inlet flow rate data, further improving the accuracy of the conductivity adjustment of the electrolyte in the mixing chamber 61, adapting to different inlet flow rate scenarios, and ensuring stable electrolysis effect. For example, when the inlet flow rate increases, the control module 80 will correspondingly increase the amount of brine delivered to avoid the conductivity of the electrolyte deviating from the target range due to fluctuations in the inlet flow rate. At the same time, the detection data of the flow sensor 40 can also assist the control module 80 in judging whether the water intake is normal. If an abnormal flow is detected, the control module 80 can trigger an alarm signal to remind the user to check whether the water inlet circuit is blocked or the water supply is interrupted, thereby improving the safety and fault warning capability of the water inlet device 100.

[0044] In some embodiments of the present invention, such as Figure 1 As shown, the flow sensor 40 can be connected in series on the upstream side of the water softener 10 in the direction of water inlet flow. The flow sensor 40 can directly detect the inlet water flow rate entering the water inlet device 100, which is convenient for detection. The control module 80 can estimate the brine delivery volume based on the inlet water flow rate and the conductivity of the required electrolytic solution, avoiding the delay in conductivity adjustment caused by the flow sensor 40 detecting the inlet water flow rate. At the same time, arranging the flow sensor 40 on the upstream side of the water softener 10 in the direction of water inlet flow keeps the flow sensor 40 away from the corrosive liquid in the brine chamber 12, reducing the risk of corrosion of the flow sensor 40, extending its service life, and reducing maintenance costs.

[0045] In some embodiments of the present invention, such as Figure 1 As shown, the water inlet device 100 may further include a second sensor, which is used to detect the inlet water conductivity of the water inlet device 100. The second sensor is electrically connected to the control module 80. The second sensor can be a TDS (Total Dissolved Solids) sensor, an electrode conductivity sensor, an inductive conductivity sensor, an ultrasonic conductivity sensor, etc. The second sensor can be arranged upstream of the water softener 10 in the direction of water flow to directly detect the inlet water conductivity entering the water inlet device 100. The inlet water conductivity data can be used as the initial parameter for the control module 80 to calculate the brine delivery volume. The electrical connection between the second sensor and the control module 80 can transmit the detected inlet water conductivity data to the control module 80 in real time. The control module 80 can adjust the brine delivery volume according to the change in inlet water conductivity. For example, when the inlet water conductivity is high, the brine delivery volume can be appropriately reduced; when the inlet water conductivity is low, the brine delivery volume can be appropriately increased, so that the conductivity of the electrolyzed stock solution in the mixing chamber 61 quickly reaches the target range.

[0046] In this embodiment, by setting a second sensor, the inlet water conductivity data of the water inlet device 100 can be acquired in real time. The control module 80 combines the inlet water conductivity and the inlet water flow rate to provide data basis for adjusting the brine delivery volume, avoiding errors in the adjustment of the electrolytic solution conductivity due to fluctuations in the inlet water conductivity. At the same time, the detection function of the second sensor can realize real-time monitoring and long-term monitoring of the inlet water quality, promptly detect water quality abnormalities or water circuit failures, and analyze the trend of inlet water conductivity changes through the control module 80 to replace the ion exchange resin of the water softener 10 or replenish the soft water regeneration salt in the brine chamber 12 in a timely manner, ensuring that the water softener 10 is always in good working condition, and improving the maintenance convenience, safety and intelligence level of the water inlet device 100.

[0047] In some embodiments of the present invention, such as Figure 1 As shown, the first sensor 70 can be a TDS sensor. The TDS sensor indirectly reflects the conductivity of the electrolyte in the mixing chamber 61 by detecting the total dissolved solids content in the water, facilitating the control module 80 in calculating the brine delivery volume, simplifying the control algorithm, and improving conductivity regulation efficiency. The TDS sensor features a wide detection range, fast response speed, corrosion resistance, and high detection accuracy, accurately capturing real-time changes in the conductivity of the electrolyte. Furthermore, the TDS sensor is compact, facilitating installation and arrangement within the mixing tank 60, and making daily use and maintenance convenient. Using the TDS sensor as the first sensor 70 provides reliable data for the adjustment of the flow control component 50, ensuring the accuracy and stability of the electrolyte conductivity detection in the mixing chamber 61, and improving the operational stability of the water inlet device 100.

[0048] In some embodiments of the present invention, such as Figure 1 As shown, the second sensor can be a TDS sensor. The TDS sensor indirectly reflects the conductivity of the influent water in the influent device 100 by detecting the total dissolved solids content. This allows the control module 80 to combine the influent flow rate data collected by the flow sensor 40 to estimate the amount of brine delivered from the brine chamber 12 to the mixing chamber 61. The TDS sensor has the characteristics of wide detection range, fast response speed, corrosion resistance, and high detection accuracy. It can accurately capture the real-time changes in the conductivity of the influent water in the influent device 100, providing reliable data for water quality monitoring. At the same time, the TDS sensor is small in size, easy to install in the influent water circuit, and convenient for daily use and maintenance. Using the TDS sensor as the second sensor provides data basis for the comprehensive control of the control module 80, ensuring the accuracy of water quality monitoring and the stability of control, and improving the operational stability of the influent device 100.

[0049] The following is for reference. Figure 1 A dishwasher 1000 according to a second aspect embodiment of the present invention is described.

[0050] like Figure 1As shown, a dishwasher 1000 according to a second aspect embodiment of the present invention includes an inner tank 200 and a water inlet device 100 according to the first aspect embodiment of the present invention. An electrolysis module 20 is connected to the inner tank 200 and can deliver electrolyzed liquid to the inner tank 200.

[0051] like Figure 1 As shown, the alkaline liquid generated by the electrolysis module 20 can be delivered to the inner drum 200 during the cleaning stage of the dishwasher 1000's washing process to achieve efficient cleaning of the tableware. The acidic liquid can be delivered to the inner drum 200 during the rinsing stage to disinfect the tableware and dissolve any mineral residue left after alkaline washing, reducing limescale buildup on the inner wall of the inner drum 200 and the surface of the tableware. The electrolysis module 20 can be controlled to output either alkaline or acidic liquid according to different stages of the dishwasher 1000's washing process; alkaline liquid is output during the cleaning stage, and acidic liquid is output during the rinsing stage.

[0052] In this embodiment, by connecting the electrolysis module 20 to the inner tank 200, the electrolyzed liquid generated by the electrolysis module 20 is directly used in the washing process of the dishwasher 1000. The alkaline liquid replaces washing consumables, and the acidic liquid replaces disinfectant, realizing consumable-free or low-consumable cleaning of the dishwasher 1000, reducing user costs, avoiding the health effects of consumable residues, and at the same time, the targeted use of acidic and alkaline liquids can improve the cleaning and disinfection effect of tableware, reduce scale formation, and extend the service life of the internal components of the inner tank 200.

[0053] According to an embodiment of the present invention, the dishwasher 1000 can dynamically adjust the amount of salt solution delivered by the first sensor 70 and the flow control component 50 to regulate the conductivity of the electrolyte, reduce the operating power and energy consumption of the electrolysis module 20, and generate acidic and alkaline liquids for cleaning tableware, thereby reducing the operating cost of the dishwasher 1000 and avoiding health hazards.

[0054] In some embodiments of the present invention, such as Figure 1 As shown, the dishwasher 1000 may further include a third sensor 300, which is located inside the inner tub 200 and is a TDS sensor. The third sensor 300 indirectly reflects the conductivity of the liquid inside the inner tub 200 by detecting the total dissolved solids content in the water, and monitors the water quality status in real time during the washing and rinsing stages of the dishwasher 1000, thereby determining the cleanliness of the tableware and the residue of the electrolyzed liquid. After the rinsing stage, if the TDS value of the residual liquid detected by the third sensor 300 is higher than a preset threshold, the dishwasher 1000 will enter an additional rinsing stage until the value meets the standard and the tableware is clean and meets the cleaning requirements.

[0055] In this embodiment, the TDS sensor has a wide detection range, fast response, corrosion resistance, and high accuracy. Its compact size allows for flexible placement within the inner tank 200, making it convenient to use and maintain. The detection data from the third sensor 300 can be linked with the first sensor 70 and the second sensor to achieve water quality control throughout the entire washing process of the dishwasher 1000, from water intake to washing. It can also serve as a basis for adaptive adjustment during the washing stage, ensuring effective cleaning of tableware, preventing residual wastewater from affecting health, and preventing over-washing that wastes energy, thus improving the intelligence, reliability, and user experience of the dishwasher 1000.

[0056] In some embodiments of the present invention, such as Figure 1 As shown, the electrolysis module 20 may have a first outlet 21 and a second outlet 22. The first outlet 21 is connected to the inner tank 200 through a first flow path 31 and is used to deliver alkaline liquid to the inner tank 200. The second outlet 22 is connected to the inner tank 200 through a second flow path 32 and is used to deliver acidic liquid to the inner tank 200. The alkaline liquid and the acidic liquid flow out of the electrolysis module 20 through the two independent outlets 21 and 22, and are respectively delivered into the inner tank 200 through the two independent flow paths 31 and 32. The timing and volume of the alkaline liquid and the acidic liquid can be individually adjusted according to the actual needs of different washing stages of the dishwasher 1000, so as to achieve precise switching between alkaline washing and acidic disinfection functions, ensure the cleaning effect of each washing stage of the dishwasher 1000, and improve the rationality and control precision of the dishwasher 1000.

[0057] In this embodiment, alkaline liquid can be introduced into the inner tank 200 during the cleaning stage to efficiently decompose oil stains on the surface of tableware, replacing washing consumables and enabling the dishwasher 1000 to clean with fewer or even no consumables. Acidic liquid can be introduced into the inner tank 200 during the rinsing stage, which can not only sterilize and disinfect the tableware, but also dissolve the minerals remaining after alkaline liquid washing, effectively reducing the formation of scale on the surface of tableware and the surface of the inner tank 200, and extending the service life of the internal components of the dishwasher 1000.

[0058] In some embodiments of the present invention, the dishwasher 1000 may further include a water tank, with at least one of the first flow path 31 and the second flow path 32 connected in series with the water tank. For example, the dishwasher 1000 may have a water tank connected in series only with the first flow path 31, and the water tank is used to temporarily store alkaline liquids; or, the dishwasher 1000 may have a water tank connected in series only with the second flow path 32, and the water tank is used to temporarily store acidic liquids; or, both the first flow path 31 and the second flow path 32 of the dishwasher 1000 may have water tanks connected in series, and the two water tanks are used to temporarily store acidic liquids and alkaline liquids, respectively. The water tank is connected in series with the corresponding first flow path 31 or second flow path 32, with one end connected to the electrolysis module 20 and the other end connected to the washing chamber.

[0059] In this embodiment, by connecting a water tank in series, the temporary storage and on-demand supply of acidic or alkaline liquids can be achieved. This allows for flexible adjustment of the timing and amount of acidic and alkaline liquid delivery according to different washing stages of the dishwasher 1000, improving the compatibility of acidic and alkaline liquids with the washing process. At the same time, the temporary storage and buffering effect of the water tank ensures the stability of the delivery of the electrolytically generated liquid and the accuracy of the supply amount, ensuring that the electrolytically generated liquid can stably perform its function after entering the washing chamber, thereby improving the cleaning effect and water resource utilization rate of the dishwasher 1000.

[0060] In some embodiments of the present invention, the electrolysis module 20 is configured to, during electrolysis, directly deliver an acidic or alkaline liquid into the washing chamber via one of the first flow path 31 and the second flow path 32, and temporarily store the other of the acidic or alkaline liquid in a water tank via the other of the first flow path 31 and the second flow path 32. For example, during electrolysis, the electrolysis module 20, such as... Figure 1 As shown, alkaline liquid can be directly delivered into the washing chamber through the first flow path 31, and acidic liquid can be temporarily delivered into the water tank through the second flow path 32. Alternatively, acidic liquid can be directly delivered into the washing chamber through the second flow path 32, and alkaline liquid can be temporarily delivered into the water tank through the first flow path 31.

[0061] In this embodiment, the electrolysis module 20 can continuously provide the electrolyzed liquid to the washing chamber during the electrolysis process, shortening the overall washing time of the dishwasher 1000 and improving cleaning efficiency. At the same time, the dishwasher 1000 can flexibly deliver acidic or alkaline liquids according to the actual needs of different washing stages, while temporarily storing the other in the water tank. This ensures that the acidic and alkaline liquids match the corresponding washing stages and also reserves the corresponding electrolyzed liquids in advance for subsequent stages, improving the utilization rate of the electrolyzed liquids, avoiding waste and frequent start-stop of the electrolysis module 20, ensuring a continuous and stable washing process for the dishwasher 1000, and reducing the energy and water consumption of the dishwasher 1000.

[0062] In some embodiments of the present invention, when the electrolysis module 20 electrolyzes, it can deliver alkaline liquid to the washing chamber through the first outlet 21 and the first flow path 31. The inner tank 200 cleans the tableware in the washing chamber with the alkaline liquid. When the electrolysis module 20 electrolyzes, it can also deliver acidic liquid to the water storage tank through the second outlet 22 and the second flow path 32, so as to store the acidic liquid in the water storage tank.

[0063] In this embodiment, the electrolysis module 20 can deliver alkaline liquid to the washing chamber during the electrolysis process for direct use in the cleaning stage of the dishwashing process. The alkaline liquid decomposes the oil stains on the surface of the dishes in the washing chamber, while the unused acidic liquid is temporarily stored in the water tank. This shortens the overall washing time of the dishwasher 1000 and improves the cleaning efficiency. Delivering alkaline liquid during the cleaning stage also prepares acidic liquid in advance for the subsequent rinsing stage, ensuring that the acidic liquid can be fully utilized when it is put into use. This achieves on-demand allocation and time-sharing use of acidic and alkaline liquids, avoids waste of acidic liquid, improves the utilization rate of the electrolyzed liquid, and eliminates the need to start and stop the electrolysis module 20 midway, ensuring a continuous and stable washing process.

[0064] In some embodiments of the present invention, such as Figure 1 As shown, the control module 80 of the dishwasher 1000 is connected to the electrolysis module 20 and the inner tub 200. The control module 80 controls the electrolysis module 20 to deliver acidic or alkaline liquids into the washing chamber according to the washing stage of the inner tub 200. The control module 80 can be equipped with components such as a microcontroller or microprocessor. The control module 80 has multiple built-in washing programs and can automatically switch the delivery status of alkaline and acidic liquids according to different washing stages. For example, during the cleaning stage, the control module 80 controls the electrolysis module 20 to deliver alkaline liquids, and during the rinsing stage, the control module 80 controls the electrolysis module 20 to deliver acidic liquids. Through the intelligent regulation of the control module 80, the timing and amount of acidic and alkaline liquid delivery in different washing stages can be automatically controlled without manual intervention, improving the intelligence level of the dishwasher 1000 and reducing operational difficulty.

[0065] The following is for reference. Figure 1 and Figure 2 A control method for a dishwasher 1000 according to a third aspect embodiment of the present invention is described.

[0066] like Figure 1 and Figure 2 As shown, a control method for a dishwasher 1000 according to a third aspect embodiment of the present invention is provided. The dishwasher 1000 is a dishwasher 1000 according to the second aspect embodiment of the present invention described above. The control method includes: obtaining a target conductivity of the liquid in the mixing chamber 61; and controlling the amount of liquid delivered from the salt chamber 12 to the mixing chamber 61 according to the target conductivity.

[0067] like Figure 1 and Figure 2As shown, the target conductivity can be obtained through various means. For example, the target conductivity can be set according to the actual water quality, or the target conductivity can be set by the control module 80 based on the conductivity adjustment data of historical washing, or the target conductivity can be set according to the temperature, operating power, and other conditions of the electrolysis module 20, ensuring the safe operation of the electrolysis module 20. Combining multiple acquisition methods can improve the flexibility and accuracy of target conductivity determination, providing a reasonable basis for subsequent control of brine delivery, and enabling the dishwasher 1000's control method to adapt to diverse usage needs and operating conditions.

[0068] like Figure 1 and Figure 2 As shown, the salt chamber 12 transports the salt solution to the mixing chamber 61 in the mixing tank 60 through the first water path 33. The first water path 33 is connected in series with a flow controller. The control module 80 can receive the conductivity of the electrolyte in the mixing chamber 61 detected by the first sensor 70 in real time and compare it with the target conductivity. If the conductivity of the electrolyte is lower than the target conductivity, the control module 80 outputs a control signal to the flow controller 50 to increase the opening of the flow controller 50 or increase the pump speed, thereby increasing the amount of salt solution transported from the salt chamber 12 to the mixing chamber 61. If the conductivity of the electrolyte approaches the target conductivity, the control module 80 controls the flow controller 50 to decrease the opening or decrease the pump speed, thereby reducing the amount of salt solution transported, ensuring that the conductivity of the electrolyte in the mixing chamber 61 reaches the target conductivity value.

[0069] In this embodiment, the flow control component 50 can be adjusted by the control module 80 based on the comparison between the target conductivity and the conductivity of the electrolyte stock solution. This enables precise control of the salt solution delivery volume, ensuring that the conductivity of the electrolyte stock solution in the mixing chamber 61 remains stable within the target conductivity range. This reduces the operating power of the electrolysis module 20, provides a guarantee for the efficient generation of the electrolyte product by the electrolysis module 20, and improves the convenience of the control method of the dishwasher 1000.

[0070] According to the control method of the dishwasher 1000 of the present invention, the amount of salt solution delivered can be dynamically adjusted by the first sensor 70 and the flow control component 50 to regulate the conductivity of the electrolyte, reduce the operating power and energy consumption of the electrolysis module 20, and generate acidic and alkaline liquids for cleaning tableware, thereby reducing the operating cost of the dishwasher 1000 and avoiding health hazards.

[0071] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, obtaining the target conductivity of the liquid in the mixing chamber 61 may include: obtaining the inlet water conductivity and inlet water flow rate of the water inlet device 100, obtaining the preset pH value of the liquid required for washing the inner tank 200, and obtaining the operating power of the electrolysis module 20; the target conductivity can be obtained based on the inlet water conductivity, inlet water flow rate, preset pH value, and operating power.

[0072] In some examples, such as Figure 1 and Figure 2 As shown, the inlet water conductivity can be obtained by the second sensor or the first sensor 70. For example, the second sensor is arranged upstream of the water inlet flow direction of the water softener 10, directly detecting the inlet water conductivity value, and the detection data is transmitted to the control module 80 in real time. Alternatively, when the water softener 10 is not supplying softened water and brine to the mixing chamber 61, but only inlet water is introduced into the mixing chamber 61, the conductivity detected by the first sensor 70 is the inlet water conductivity. The inlet water flow rate can be obtained by the flow sensor 40, which is arranged upstream of the water inlet flow direction of the water softener 10, and can directly detect the inlet water flow rate.

[0073] The preset pH value of the liquid required for washing in the inner tank 200 is set by the dishwasher 1000 according to the specific washing stage. For example, the preset pH value for the main wash stage of the dishwasher 1000 is strongly alkaline to enhance the cleaning power. The operating power of the electrolysis module 20 can be obtained from the operating power of the dishwasher 1000. By separately acquiring the inlet water conductivity, inlet water flow rate, preset pH value, and operating power, all factors affecting the target conductivity can be comprehensively considered, providing a comprehensive and reliable data basis for obtaining the target conductivity and ensuring the rationality and accuracy of the target conductivity.

[0074] In some examples, such as Figure 1 and Figure 2 As shown, the target conductivity can be obtained based on the acquired influent conductivity, influent flow rate, preset pH value, and operating power. The specific range of the target conductivity is obtained through experimental simulation. During the experiment, by changing the values ​​of influent conductivity, influent flow rate, preset pH value, and operating power, the conductivity of the electrolyte stock solution in the mixing chamber 61 corresponding to the preset pH value when the acidic and alkaline liquids produced by the electrolysis module 20 are reached under different combinations is recorded. Through data fitting and analysis, a mathematical model is established between influent conductivity, influent flow rate, preset pH value, operating power, and target conductivity. Establishing a mathematical model through experimental simulation to obtain the target conductivity ensures a high degree of matching between the target conductivity and actual working conditions, avoiding large deviations between theoretical calculations and actual situations. At the same time, the accumulation and fitting of experimental data can cover various working conditions, making the acquisition of the target conductivity applicable to different water qualities in different regions and different washing needs, thus improving the adaptability and accuracy of the control method.

[0075] In some embodiments of the present invention, such as Figure 2As shown, the target conductivity can be 300 mg / L-6000 mg / L. For example, the target conductivity can be 300 mg / L, 400 mg / L, 600 mg / L, 800 mg / L, 1000 mg / L, 2000 mg / L, 3000 mg / L, 4000 mg / L, 5000 mg / L, 6000 mg / L, etc. Setting the target conductivity to be greater than or equal to 300 mg / L can meet the low power requirements of the electrolysis module 20, avoiding low electrolysis efficiency and high energy consumption due to excessively low conductivity of the electrolyte. Setting the target conductivity to be less than or equal to 6000 mg / L can avoid corrosion of the electrolysis module 20 or excessive impurities due to excessively high conductivity of the electrolyte. Setting the target conductivity within the range of 300 mg / L to 6000 mg / L can ensure that the electrolysis module 20 operates in a safe and efficient state, while taking into account the needs of different water quality in different regions and different washing stages, thus improving the applicability and reliability of the dishwasher 1000 control method.

[0076] In some embodiments of the present invention, such as Figure 1 As shown, the control method of the dishwasher 1000 further includes: when the dishwasher 1000 enters the pre-wash stage and / or the main wash stage, the electrolysis module 20 delivers alkaline liquid generated by electrolysis into the washing chamber, and the dishwasher 1000 uses the alkaline liquid to clean the dishes in the washing chamber. For example, the electrolysis module 20 delivers alkaline liquid into the washing chamber only when the dishwasher 1000 enters the pre-wash stage, or only when the dishwasher 1000 enters the main wash stage, or the electrolysis module 20 delivers alkaline liquid into the washing chamber in both the pre-wash stage and the main wash stage. During the pre-wash stage, the alkaline liquid is used to rinse away surface dust and loose stains on the dishes, thereby reducing the cleaning pressure during the main wash stage. During the main wash stage, the alkaline liquid can effectively decompose stubborn grease on the dishes.

[0077] In this embodiment, the alkaline liquid generated by the electrolysis module 20 has a strong cleaning ability, emulsifying grease and decomposing food residues. It can replace traditional chemical detergents, enabling dishwasher 1000 to perform consumable-free cleaning. This not only improves the cleaning efficiency and effect of dishwasher 1000 and reduces daily operating costs, but also avoids the health hazards caused by consumable residues, achieving green and environmentally friendly washing and improving the safety of tableware. At the same time, the alkaline liquid can flexibly adapt to the cleaning needs of the pre-wash and main wash stages. During the pre-wash stage, it quickly rinses away floating dust and debris from the surface of the tableware, while during the main wash stage, it deeply decomposes stubborn grease and burnt stains. It can be targeted to clean the tableware according to its actual degree of dirtiness, avoiding incomplete or over-washing, reducing water and electricity waste, and fully ensuring the cleaning effect on the surface of the tableware.

[0078] In some embodiments of the present invention, such as Figure 1As shown, the pre-wash stage can perform one or more pre-washes. During at least one pre-wash, the electrolysis module 20 delivers alkaline liquid into the washing chamber, and the dishwasher 1000 uses this alkaline liquid to pre-wash the dishes in the washing chamber. The number of pre-washes in the pre-wash stage can be flexibly adjusted according to the degree of soiling of the dishes; for example, the number of pre-washes can be one, two, three, or more. During the pre-wash process, the alkaline liquid washes the surface of the dishes, gradually breaking down and removing the stains. By flexibly setting the number of pre-washes in the pre-wash stage and using alkaline liquid cleaning, some grease can be broken down in advance, preventing a large amount of stains from spreading in the washing chamber, reducing the washing pressure in the main wash stage, and improving the cleaning efficiency of the dishwasher 1000.

[0079] In some embodiments of the present invention, such as Figure 1 As shown, the main wash stage may include one or more main washes. During at least one main wash, the electrolysis module 20 delivers alkaline liquid into the washing chamber, and the dishwasher 1000 uses the alkaline liquid to clean the dishes in the washing chamber. The number of main washes in the main wash stage can be flexibly adjusted according to the degree of soiling of the dishes; for example, the number of main washes can be one, two, three, or more. During the main wash process, the alkaline liquid continuously softens and removes grease, fully utilizing the cleaning power of the alkaline liquid. By flexibly setting the number of main washes in the main wash stage and coordinating with alkaline liquid cleaning, stubborn stains on the surface of the dishes can be broken down layer by layer, ensuring cleaning effect, avoiding incomplete cleaning of dishes, and improving the reliability of the control method.

[0080] In some embodiments of the present invention, such as Figure 1 As shown, during the main wash stage, when the electrolysis module 20 delivers alkaline liquid into the washing chamber, the control method may further include: controlling the pH value of the alkaline liquid generated by the electrolysis module 20 to ensure that the pH value of the alkaline liquid meets a preset pH value. The preset pH value can be determined based on the degree of soiling of the tableware. The pH value of the alkaline liquid directly affects its cleaning ability and its corrosiveness to the tableware; a higher pH value results in stronger cleaning ability but also greater corrosiveness. The dishwasher 1000 adjusts the operating parameters of the electrolysis module 20 according to the preset pH range to ensure that the pH value of the alkaline liquid remains stable within the preset range. By controlling the pH value of the alkaline liquid, its cleaning ability can be matched to the degree of soiling of the tableware, adapting to different washing needs. This ensures effective cleaning while protecting the tableware from damage and extending its lifespan.

[0081] In some embodiments of the present invention, such as Figure 1 As shown, controlling the pH value of the alkaline liquid produced by the electrolysis module 20 can include adjusting the electrolysis power of the electrolysis module 20, thereby controlling the pH value of the alkaline liquid produced by the electrolysis module 20 through the electrolysis power. The electrolysis power and the pH value of the alkaline liquid are positively correlated; the higher the power, the more vigorous the electrolysis reaction, and the higher the pH value of the generated alkaline liquid.

[0082] In this embodiment, the adjustment method of electrolysis power can be flexibly selected according to actual needs. For example, it can be achieved by increasing electrolysis power, decreasing electrolysis power, adjusting electrolysis power in stages, or dynamically adjusting electrolysis power in real time. When a high-pH alkaline liquid is required, the electrolysis power can be increased to enhance the intensity of the electrolysis reaction. When a low-pH alkaline liquid is required, the electrolysis power can be decreased to weaken the intensity of the electrolysis reaction. For complex washing processes, the electrolysis power can be adjusted in stages to provide alkaline liquids with different pH values ​​at different washing stages. Controlling the pH value of alkaline liquid by adjusting the electrolysis power is simple to operate and has a rapid response. It can quickly adapt to different washing scenarios, achieve flexible control of the pH value of alkaline liquid, and improve the intelligence level of the dishwasher 1000.

[0083] In some embodiments of the present invention, such as Figure 1 As shown, the control method may further include: acquiring the washing difficulty of the dishes in the washing chamber, and controlling the pH value of the alkaline liquid according to the washing difficulty, wherein the greater the washing difficulty, the higher the pH value of the alkaline liquid. The washing difficulty can be determined by detecting the turbidity of the water flow inside the dishwasher 1000, the oil content, or the type of stains on the dishes, or it can be manually selected by the user. By adjusting the pH value of the alkaline liquid according to the washing difficulty, precise stain removal can be achieved, avoiding waste of water and electricity resources or incomplete cleaning due to the pH value of the alkaline liquid being too high or too low, thus saving energy and resources while ensuring cleaning effect.

[0084] For example, if the water flow in the dishwasher 1000 has high turbidity and a high oil content, it can be determined as a high-difficulty wash, and the pH value of the alkaline liquid should be increased accordingly. Conversely, if the water flow has low turbidity and a low oil content, it can be determined as a low-difficulty wash, and the pH value of the alkaline liquid should be decreased accordingly. Similarly, tableware stains can be categorized as light oil stains, heavy burnt stains, sticky residue, and colored sauce residue. Tableware with light oil stains can be determined as a low-difficulty wash, and the pH value of the alkaline liquid should be decreased accordingly. Tableware with heavy burnt stains can be determined as a high-difficulty wash, and the pH value of the alkaline liquid should be increased accordingly. Tableware with sticky residue or colored sauce stains can have their pH value adjusted according to the stubbornness of the stains. Additionally, users can manually select the washing difficulty level according to the actual condition of the tableware, and the dishwasher 1000 will adjust the pH value of the alkaline liquid accordingly.

[0085] In some embodiments of the present invention, such as Figure 1As shown, the preset pH value can be greater than or equal to 11. When the pH value of the alkaline liquid is greater than or equal to 11, it has a strong detergency and can quickly break down grease stains, making it suitable for cleaning tableware stained with heavy oil. By setting the preset pH value to greater than or equal to 11, it can be ensured that the detergency of the alkaline liquid meets the cleaning needs of daily and heavily soiled tableware, while not damaging common tableware materials such as ceramic and stainless steel, thus meeting the washing needs of various tableware.

[0086] In some embodiments of the present invention, such as Figure 1 As shown, during the main wash stage, when the electrolysis module 20 delivers alkaline liquid to the washing chamber, the control method may further include: delivering nanobubbles into the washing chamber. Nanobubbles are characterized by their small size and strong adsorption capacity, enabling them to penetrate into the tiny crevices of the tableware surface, adsorbing dirt particles, cleaning hard-to-reach areas, and improving the cleaning effect. Furthermore, the bursting of nanobubbles generates localized high pressure, which can further loosen stubborn stains adhering to the tableware surface, enhancing the cleaning effect through the physical action of bubble bursting. By delivering nanobubbles into the washing chamber, the cleaning ability of the dishwasher 1000 can be enhanced, and the cleaning depth of the dishwasher 1000 can be increased.

[0087] In some embodiments of the present invention, such as Figure 1 As shown, the delivery of nanobubbles into the washing chamber can include: an electrolysis module 20 delivering the gas generated during electrolysis along with an alkaline liquid into the washing chamber. During electrolysis, the electrolysis module 20 generates hydrogen gas, which forms nano-sized nanobubbles under the action of high-pressure water flow, and can enter the washing chamber along with the alkaline liquid. By utilizing the gas generated by electrolysis to produce nanobubbles and simultaneously delivering the nanobubbles and alkaline liquid, synergistic cleaning by the bubbles and alkaline liquid is achieved, improving washing efficiency. This eliminates the need for an additional nanobubble generating device, simplifying the structure of the dishwasher 1000.

[0088] In some embodiments of the present invention, such as Figure 1As shown, the control method may further include: when the dishwasher 1000 enters the rinsing stage, supplying the washing chamber with acidic liquid generated by the electrolysis module 20, and using the acidic liquid to rinse the tableware in the washing chamber. The electrolysis module 20 generates acidic liquid simultaneously with alkaline liquid. The acidic liquid has a low pH value, which has the function of sterilization, disinfection, and neutralizing residual alkaline liquid in the washing chamber. During the rinsing stage of the dishwasher 1000, the acidic liquid washes the surface of the tableware with the water flow, neutralizing the alkaline liquid residue adhering to the surface of the tableware during the pre-wash and main wash stages, avoiding irritation to human skin. At the same time, the acidic liquid can replace disinfectants to achieve sterilization and disinfection of the tableware, achieving a sterilization and antibacterial effect while avoiding the risk of chemical disinfectant residue, thus improving the hygiene and safety level of the cleaned tableware. Through the synergistic effect of the acidic and alkaline liquids, integrated cleaning and disinfection can be achieved, enhancing the practicality of the dishwasher 1000.

[0089] In some embodiments of the present invention, such as Figure 1 As shown, the rinsing stage performs one or more rinses. During at least one rinse, the electrolysis module 20 can deliver acidic liquid into the washing chamber, and the dishwasher 1000 uses the acidic liquid to rinse the dishes in the washing chamber. The number of rinses in the rinsing stage can be flexibly adjusted according to actual needs; for example, the number of rinses can be one, two, three, or more. For dishes with low washing difficulty, one rinse is sufficient for neutralization and disinfection. For dishes with high washing difficulty, multiple rinses are required to ensure that the acidic liquid completely neutralizes the alkaline liquid residue and kills bacteria. By flexibly setting the number of rinses and using acidic liquid cleaning, it can be ensured that the alkaline liquid residue on the surface of the dishes is completely neutralized, improving the sterilization effect, enhancing the cleanliness and safety of the dishes, and protecting the health of users.

[0090] In some embodiments of the present invention, such as Figure 1 As shown, the pre-wash stage, main wash stage, and rinsing stage can be performed sequentially; or, the main wash stage includes multiple main washes, the rinsing stage includes multiple rinsings, with at least one rinsing performed between two main washes, or, multiple main washes and multiple rinsings are performed alternately.

[0091] For example, the washing cycle of a dishwasher 1000 can be executed sequentially: the pre-wash, main wash, and rinse stages can be performed in that order. Alternatively, the washing cycle can be pre-wash, main wash, and rinse, suitable for everyday lightly soiled dishes. The pre-wash stage uses alkaline liquid to remove surface dust and loose grease, reducing the cleaning pressure on the main wash stage. The main wash stage adjusts the pH of the alkaline liquid to break down residual stains and simultaneously delivers nanobubbles to enhance the cleaning effect. The rinse stage uses acidic liquid to neutralize any alkaline residue and complete sterilization. The pre-wash, main wash, and rinse stages are seamlessly integrated, balancing cleaning efficiency with ease of operation.

[0092] For example, the washing cycle sequence of a dishwasher (model 1000) can alternate between the main wash and rinse cycles. The main wash cycle includes multiple washes, and the rinse cycle includes multiple rinses, with at least one rinse occurring between two main washes. The washing cycle sequence can be pre-wash, main wash, rinse, main wash, rinse, suitable for dishes with stubborn stains. Inserting a rinse between two main washes can neutralize some of the alkaline liquid residue on the surface of the dishes, while the water flow loosens deep-seated stubborn stains. The neutralized surface of the dishes is more easily penetrated by the alkaline liquid in the subsequent main wash, allowing the main wash to more efficiently break down residual stains and achieve a layer-by-layer cleaning effect.

[0093] For example, the washing cycle of a dishwasher 1000 can be executed sequentially with the main wash and rinse cycles. The main wash includes multiple washes, and the rinse cycle includes multiple rinses. These multiple main washes and multiple rinses can be performed alternately. The washing cycle sequence can be pre-wash, main wash, main wash, rinse, rinse, suitable for dishes with large areas of dirt. The first two main washes use a high-pH alkaline liquid combined with nano-bubbles to continuously impact and break down stubborn stains on the surface of the dishes. The last two rinses first use clean water to initially rinse away surface dirt, and then use an acidic liquid to deeply neutralize any remaining alkaline liquid and complete sterilization. The alternation of multiple main washes and multiple rinses can thoroughly remove stains and chemical residues from the surface of the dishes, ensuring the cleanliness and safety of the dishes.

[0094] In this embodiment, by flexibly configuring the execution order of the washing stage, it can adapt to the washing needs corresponding to different levels of dirt on tableware, adapt to diverse washing scenarios, and improve the usability and versatility of the dishwasher 1000.

[0095] The following will refer to Figure 1 A dishwasher 1000 and a control method for the dishwasher 1000 are described according to a specific embodiment of the present invention.

[0096] like Figure 1 As shown, the dishwasher 1000 includes: a water inlet device 100, an inner tank 200, and a third sensor 300. The water inlet device 100 includes: a water softener 10, an electrolysis module 20, a first flow path 31, a second flow path 32, a first water path 33, a second water path 34, a flow sensor 40, a flow control component 50, a mixing tank 60, a first sensor 70, a control module 80, and a second sensor.

[0097] Specifically, such as Figure 1As shown, the water softener 10 has a resin chamber 11 and a salt chamber 12. The resin chamber 11 is filled with ion exchange resin, and the salt chamber 12 stores softened water regeneration salt. The mixing tank 60 has a mixing chamber 61 inside. A first water path 33 connects the salt chamber 12 and the mixing chamber 61, and a second water path 34 connects the resin chamber 11 and the mixing chamber 61. One side of the mixing tank 60 is connected to both the first water path 33 and the second water path 34, and the other side is connected to the electrolysis module 20. A flow sensor 40 is connected in series upstream of the water softener 10 to detect the inlet water flow rate. The flow control component 50, which is a water pump, is connected in series with the first water path 33. The electrolysis module 20 is provided with a first outlet 21 and a second outlet 22. The electrolysis module 20 is connected to the inner tank 200 through the first outlet 21 and the second outlet 22 via the first flow path 31 and the second flow path 32. The first outlet 21 is connected to the first flow path 31 to deliver alkaline liquid to the inner tank 200, and the second outlet 22 is connected to the second flow path 32 to deliver acidic liquid to the inner tank 200.

[0098] like Figure 1 As shown, the first sensor 70, the second sensor, and the third sensor 300 are all TDS sensors. The first sensor 70 is located inside the mixing tank 60 and detects the conductivity of the electrolyzed stock solution in the mixing chamber 61. The second sensor is located upstream of the water softener 10 in the water inlet direction and detects the conductivity of the incoming water. The third sensor 300 is fixed inside the inner tank 200 and detects the conductivity of the liquid inside the inner tank 200. The control module 80 is electrically connected to the first sensor 70, the second sensor, the flow sensor 40, and the flow control component 50, receiving the detection data and outputting control signals.

[0099] The control method of the dishwasher 1000 includes: obtaining the target conductivity of the liquid in the mixing chamber 61, including: obtaining the water conductivity and water flow rate of the water inlet device 100, obtaining the preset pH value of the liquid required for washing in the inner tank 200, obtaining the operating power of the electrolysis module 20, obtaining the target conductivity based on the water conductivity, water flow rate, preset pH value and operating power, and controlling the amount of liquid delivered from the salt chamber 12 to the mixing chamber 61 based on the target conductivity.

[0100] The dishwasher 1000's washing cycle includes a rinsing cycle and a washing cycle. The rinsing cycle includes a pre-wash cycle and a main wash cycle. The dishwasher 1000's washing cycle is executed in the following order: pre-wash, main wash, and rinsing.

[0101] The dishwasher 1000's washing cycle consists of pre-wash, main wash, and rinse. Before entering the pre-wash stage, the difficulty of washing the dishes is determined based on their level of soiling in the washing chamber, and the pH value of the alkaline liquid is preset. During the pre-wash stage, the dishwasher 1000 performs one pre-wash, during which the electrolysis module 20 electrolyzes to produce alkaline liquid, which is then conveyed into the washing chamber to rinse away surface dust and loose grease. Next, the dishwasher 1000 enters the main wash stage, performing one main wash. During the main wash, the operating power of the electrolysis module 20 is adjusted to ensure the pH value of the alkaline liquid meets the preset pH range. Simultaneously, the gas generated by the electrolysis module 20 forms nanobubbles that enter the washing chamber along with the alkaline liquid to clean the dishes. Finally, the dishwasher 1000 enters the rinse stage, performing one rinse. During the rinse, the electrolysis module 20 conveys an acidic liquid into the washing chamber to rinse the dishes, neutralizing any alkaline residue on the surface and killing bacteria. This is suitable for regularly soiled, lightly soiled dishes used in daily life.

[0102] The working process of the dishwasher 1000 in the above embodiment is described in detail below.

[0103] When in use, the dishwasher 1000 starts, the control module 80 controls the second sensor to detect the water inlet conductivity, the flow sensor 40 to detect the water inlet flow, and at the same time, the washing difficulty of the tableware is obtained according to the degree of dirt in the washing chamber. The pH value of the alkaline liquid and the operating power of the electrolysis module 20 are preset. Combining the water inlet conductivity, water inlet flow, preset pH value, and operating power, the target conductivity of the electrolyzed stock solution in the mixing chamber 61 is experimentally determined. Subsequently, the salt chamber 12 delivers salt solution to the mixing chamber 61 through the first water path 33, and the resin chamber 11 delivers softened water to the mixing chamber 61 through the second water path 34. The first sensor 70 detects the conductivity of the electrolyte in the mixing chamber 61 in real time and feeds the data back to the control module 80. The control module 80 compares the conductivity of the electrolyte with the target conductivity in real time. If it is lower than the target conductivity, the pump speed is increased and the amount of salt solution delivered is increased. If the conductivity of the electrolyte approaches the target conductivity, the pump speed is decreased and the amount of salt solution delivered is reduced until the conductivity of the liquid in the mixing chamber 61 stabilizes within the target conductivity range.

[0104] Subsequently, the electrolysis module 20 is activated, producing alkaline and acidic liquids. Based on the washing requirements of the pre-wash and main wash stages, the alkaline liquid is delivered to the inner tank 200 through the first outlet 21 and the first flow path 31 to wash the dishes. After the pre-wash and main wash stages, the rinsing stage begins. The acidic liquid is delivered to the inner tank 200 through the second outlet 22 and the second flow path 32 for rinsing and disinfection, while also reducing scale buildup inside the inner tank 200. During the rinsing stage, the third sensor 300 continuously monitors the conductivity of the liquid inside the inner tank 200 to determine if there is any residual electrolytic liquid and whether the dishes are properly cleaned. If abnormal conductivity or inadequate cleaning is detected, the dishwasher 1000 extends the washing time until the cleaning requirements are met.

[0105] After the wash cycle is complete, the dishwasher 1000 shuts down all components and drains the wastewater from the inner drum 200, completing a full wash cycle.

[0106] According to the control method of the dishwasher 1000 of the present invention, the water inlet is softened by setting up a water softener 10 and the conductivity of the water inlet is regulated. The conductivity change of the electrolyte in the mixing chamber 61 can be monitored in real time by the first sensor 70 and the flow control component 50. The amount of salt solution delivered is dynamically adjusted to regulate the conductivity of the electrolyte, ensuring that the electrolyte matches the operating requirements of the electrolysis module 20, reducing the operating power and energy consumption of the electrolysis module 20, and enabling the electrolysis module 20 to efficiently generate alkaline and acidic liquids for cleaning tableware, thereby reducing the cost of use and avoiding health hazards.

[0107] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0108] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0109] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0110] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0111] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water inlet device (100) for a dishwasher (1000), characterized in that, include: A water softener (10) having a resin chamber (11) and a salt chamber (12); A mixing tank (60) has a mixing chamber (61), the salt chamber (12) is connected to the mixing chamber (61) through a first water passage (33), and the resin chamber (11) is connected to the mixing chamber (61) through a second water passage (34); A first sensor (70) is installed in the mixing tank (60) to detect the conductivity of the liquid in the mixing chamber (61); A flow control unit (50) is connected in series with the first water path (33) to control the amount of liquid delivered from the salt chamber (12) to the mixing chamber (61). The flow control unit (50) is electrically connected to the first sensor (70). An electrolysis module (20) is connected to the mixing tank (60) and is configured to electrolyze the water supplied from the mixing tank (60) to the electrolysis module (20).

2. The water inlet device (100) according to claim 1, characterized in that, The flow control component (50) is a water pump, or the flow control component (50) is a control valve.

3. The water inlet device (100) according to claim 1, characterized in that, The water inlet device (100) further includes a control module (80), which is connected to the first sensor (70) and the flow control element (50). The control module (80) controls the flow control element (50) according to the conductivity value detected by the first sensor (70) to control the amount of liquid delivered from the salt chamber (12) to the mixing chamber (61).

4. The water inlet device (100) according to claim 3, characterized in that, The water inlet device (100) also includes a flow sensor (40), which is used to detect the water inlet flow rate of the water inlet device (100). The flow sensor (40) is electrically connected to the control module (80). The control module (80) controls the amount of liquid delivered from the salt chamber (12) to the mixing chamber (61) based on the water inlet flow rate detected by the flow sensor (40).

5. The water inlet device (100) according to claim 4, characterized in that, The flow sensor (40) is connected in series on the upstream side of the water softener (10) in the direction of water inlet flow.

6. The water inlet device (100) according to claim 3, characterized in that, The water inlet device (100) further includes a second sensor, which is used to detect the water inlet conductivity of the water inlet device (100), and the second sensor is electrically connected to the control module (80).

7. The water inlet device (100) according to claim 6, characterized in that, The first sensor (70) is a TDS sensor, and / or the second sensor is a TDS sensor.

8. A dishwasher (1000), characterized in that, Includes an inner tank (200) and a water inlet device (100) according to any one of claims 1-7, wherein the electrolysis module (20) is connected to the inner tank (200) and the electrolysis module (20) can supply electrolyzed liquid to the inner tank (200).

9. The dishwasher (1000) according to claim 8, characterized in that, The dishwasher (1000) further includes a third sensor (300), which is located inside the inner liner (200) and is a TDS sensor.

10. The dishwasher (1000) according to claim 8, characterized in that, The electrolysis module (20) has a first outlet (21) and a second outlet (22). The first outlet (21) is connected to the inner tank (200) through a first flow path (31) and is used to deliver alkaline liquid to the inner tank (200). The second outlet (22) is connected to the inner tank (200) through a second flow path (32) and is used to deliver acidic liquid to the inner tank (200).

11. A control method for a dishwasher (1000), characterized in that, The dishwasher (1000) is the dishwasher (1000) according to any one of claims 8-10, and the control method includes: Obtain the target conductivity of the liquid in the mixing chamber (61); The amount of liquid delivered from the salt chamber (12) to the mixing chamber (61) is controlled according to the target conductivity.

12. The control method for the dishwasher (1000) according to claim 11, characterized in that, The process of obtaining the target conductivity of the liquid within the mixing chamber (61) includes: Obtain the water inlet conductivity and water inlet flow rate of the water inlet device (100), obtain the preset pH value of the liquid required for washing the inner tank (200), and obtain the operating power of the electrolysis module (20); The target conductivity is derived based on the influent conductivity, the influent flow rate, the preset pH value, and the operating power.

13. The control method for the dishwasher (1000) according to claim 12, characterized in that, The target conductivity is 300 mg / L-6000 mg / L.

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