Cleaning device and its control method

Abstract

This invention discloses a cleaning device and its control method. The cleaning device includes: an inner tank with at least one spray arm; a water cup for supplying cleaning liquid to the spray arm; a dissolved air chamber with a volume smaller than that of the inner tank, and a liquid inlet for supplying fluid into the dissolved air chamber; a sterilizing gas generating module for supplying sterilizing gas to the dissolved air chamber; a first flow channel connected at one end to the dissolved air chamber and at the other end to the water cup; a second flow channel connected at one end to the water cup and at the other end to the liquid inlet; and a first drive unit disposed in the second flow channel. After the sterilizing gas generating module and the first drive unit are activated, the dissolved air chamber, the first flow channel, the water cup, the second flow channel, and the liquid inlet can cooperate to form a circulating dissolved air flow channel. This application can simply and reliably achieve the cleaning function of food, achieving better sterilization and pesticide residue removal effects, increasing the functionality of the cleaning device, and meeting the diverse usage needs of users.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to a cleaning device and a control method thereof. BACKGROUND

[0002] As a core cleaning appliance in the kitchen, the dishwasher can effectively replace manual cleaning of tableware, greatly liberate manpower, and has been widely used in households, catering and other scenarios, thanks to its automatic cleaning function.

[0003] With the increasing demand of consumers for multifunctional and integrated kitchen cleaning appliances, the technical shortcomings of existing dishwashers have gradually become prominent. The overall structure and functional design of the dishwasher mainly focus on the cleaning of tableware, and the function is relatively single, which cannot meet the other functional needs of consumers, for example, the use needs of cleaning food materials (such as fruits and vegetables, small lobsters, crabs, and seafood).

[0004] In related technologies, ultrasonic waves and electrolytic water are combined into dishwashers to clean food materials for the purpose of removing pesticide residues and sterilizing bacteria. However, such technical solutions have their own defects and are difficult to be industrialized. For example, ultrasonic wave pesticide residue removal relies on high-frequency vibration to physically strip pesticide residues on the surface of fruits and vegetables. Not only is the effect of removing stubborn pesticide residues on the surface of fruits and vegetables poor, but the structure design of vibration driving is complex and prone to failure, which greatly increases the overall manufacturing cost of the equipment. For example, electrolytic water technology generates active substances by electrolyzing water to decompose pesticide residues and sterilize bacteria. However, this technology has strict requirements on water quality, the structure layout of the electrolysis module is complicated, the equipment assembly and maintenance are difficult, and the pesticide residue decomposition efficiency is low in actual use, which cannot achieve the ideal pesticide residue removal effect and cannot meet the actual use needs of users.

[0005] Therefore, it is necessary to provide a cleaning device and a control method thereof to solve at least one of the above problems.

[0006] It should be noted that the above introduction to the technical background is only to facilitate a clear and complete description of the technical solutions of the present application, and to facilitate the understanding of those skilled in the art. The above technical solutions cannot be considered as known to those skilled in the art merely because they are described in the background section of the present application. SUMMARY

[0007] In view of the defects of the prior art, the present application provides a cleaning device and a control method thereof, which can simply and reliably achieve the cleaning function of food materials (such as fresh fruits and vegetables), achieve better sterilization and pesticide residue removal effect, increase the use function of the cleaning device, and meet the diversified use needs of users.

[0008] The specific technical solutions of the present application are: A cleaning device includes: an inner tank with at least one spray arm disposed therein; a water cup for supplying cleaning fluid to the spray arm; a dissolved gas chamber with a volume smaller than that of the inner tank, the dissolved gas chamber having a liquid inlet for supplying fluid into the dissolved gas chamber; a bactericidal gas generating module for supplying bactericidal gas to the dissolved gas chamber; a first flow channel with one end connected to the dissolved gas chamber and the other end connected to the water cup; a second flow channel with one end connected to the water cup and the other end connected to the liquid inlet; and a first driving unit disposed in the second flow channel. When the bactericidal gas generating module and the first driving unit are activated, the dissolved gas chamber, the first flow channel, the water cup, the second flow channel, and the liquid inlet can cooperate to form a circulating dissolved gas flow channel.

[0009] In a preferred embodiment, the sterilizing gas generating module is integrated with the dissolved gas chamber; or the sterilizing gas generating module is disposed in the dissolved gas chamber, and an isolation element is provided between the sterilizing gas generating module and the liquid input section.

[0010] In a preferred embodiment, the cleaning device further includes a second driving unit for providing driving force for fluids flowing into and out of the sterilizing gas generating module.

[0011] In a preferred embodiment, a water distribution valve is further provided on the second flow channel downstream of the first drive unit along the fluid flow direction, and a liquid supply flow channel is provided between the water distribution valve and the spray arm.

[0012] In a preferred embodiment, the first drive unit is located on the second flow channel between the water cup and the water distribution valve, and the first drive unit can pressurize the liquid supply flow channel.

[0013] In a preferred embodiment, the water distribution valve includes at least one of the following operating states or a combination thereof: a first operating state, a second operating state, and a third operating state; in the first operating state, the water distribution valve is connected only to the second flow channel; in the second operating state, the water distribution valve is connected to both the second flow channel and the liquid supply channel simultaneously; in the third operating state, the water distribution valve is connected only to the liquid supply channel.

[0014] In a preferred embodiment, the cleaning device includes a dissolved air chamber, the dissolved air cavity being formed inside the dissolved air chamber, the dissolved air chamber being independently disposed on the outer side wall of the inner liner, or the dissolved air chamber being integrated into the outer side wall of the inner liner, and the dissolved air cavity not being directly connected to the inner liner.

[0015] In a preferred embodiment, the dissolved gas box is a plate-shaped hollow box with relative height, width and thickness dimensions; the liquid input section includes an infusion pipe communicating with the box, and multiple spaced nozzles are provided on the infusion pipe in the height direction and / or width direction.

[0016] In a preferred embodiment, a stop mechanism is provided at the bottom of the dissolved gas chamber. The stop mechanism is used to form a liquid seal layer of a predetermined height at the bottom of the dissolved gas chamber. The air inlet of the dissolved gas chamber is located above the liquid seal layer, and the liquid outlet of the liquid input part is at least partially located above the liquid seal layer.

[0017] In a preferred embodiment, the sterilizing gas generating module is provided with an air inlet and a sterilizing gas outlet, the air inlet being connected to the inner liner, and the sterilizing gas outlet being connected to the air inlet of the dissolved gas chamber.

[0018] In a preferred embodiment, the stop mechanism forms a return liquid cavity with the side wall of the dissolved gas cavity, and one end of the first flow channel communicates with the return liquid cavity; the stop mechanism includes a first communication port disposed near the bottom wall of the dissolved gas cavity and a stop portion located downstream of the first communication port, the stop portion extending upward from the bottom wall, and the height of the stop portion being higher than or equal to the height of the liquid seal layer.

[0019] In a preferred embodiment, a second communication port is provided at the top of the liquid return chamber, and the liquid return chamber is connected to the space above the liquid seal layer of the dissolved gas chamber through the second communication port.

[0020] In a preferred embodiment, the inner liner is provided with a first air inlet, a first air outlet, and a second air outlet; the cleaning device further includes a fan and a bypass duct, the bypass duct being connected between the first air inlet and the first air outlet, and the second air outlet being connected to the air inlet; the bypass duct, the inner liner, the sterilizing gas generating module, the dissolved gas chamber, the second connecting port, the first flow channel, and the water cup are sequentially connected; when the fan and the sterilizing gas generating module are started, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the dissolved gas chamber, the second connecting port, the first flow channel, the water cup, the inner liner, the bypass duct, and the inner liner.

[0021] In a preferred embodiment, a drain pipe is connected to the bottom of the dissolved gas chamber, and a drain valve is provided on the drain pipe. When the drain valve is opened, it is used to discharge the liquid seal layer in the dissolved gas chamber.

[0022] In a preferred embodiment, the inner liner is provided with a first air inlet, a first air outlet, and a second air outlet; the cleaning device further includes a fan and a bypass duct, the bypass duct being connected between the first air inlet and the first air outlet, and the second air outlet being connected to the air inlet; the bypass duct, the inner liner, the sterilizing gas generating module, the dissolved gas chamber, the first flow channel, and the water cup are sequentially connected; after the liquid seal layer in the dissolved gas chamber is discharged through the drain pipe, when the fan and the sterilizing gas generating module are started, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the dissolved gas chamber, the first flow channel, the water cup, the inner liner, the bypass duct, and the inner liner.

[0023] In a preferred embodiment, the sterilizing gas generating module is provided with an air inlet and a sterilizing gas outlet. The air inlet is connected to the inner liner. A first air passage is provided between the sterilizing gas outlet and the air inlet of the dissolved gas chamber. A second air passage is provided between the sterilizing gas outlet and the inner liner. The cleaning device further includes an air passage control valve, which is used to control the opening and closing of the first air passage and the second air passage.

[0024] In a preferred embodiment, the inner liner is provided with a first air inlet, a first air outlet, and a second air outlet; the cleaning device further includes a fan and a bypass duct, the bypass duct being connected between the first air inlet and the first air outlet, the second air outlet being connected to the air inlet, and the bypass duct, the inner liner, the sterilizing gas generating module, and the first air path being sequentially connected; when the first air path is connected and the fan and the sterilizing gas generating module are started, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the bypass duct and the inner liner; or, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the inner liner, the bypass duct, and the inner liner.

[0025] In a preferred embodiment, a heating element is also provided in the bypass duct.

[0026] In a preferred embodiment, the first drive unit integrates a heating module and / or the circulating dissolved gas channel is provided with a heating module.

[0027] In a preferred embodiment, the volume of the dissolved gas chamber is less than 5 liters.

[0028] In a preferred embodiment, the bactericidal gas generating module includes an electrolysis module capable of electrolyzing air to generate ozone.

[0029] In a preferred embodiment, the sterilizing gas generating module is disposed inside or outside the dissolved gas chamber; the sterilizing gas generating module is provided with an air inlet and a sterilizing gas outlet, the air inlet being connected to the inner liner, and the sterilizing gas outlet being connected to the dissolved gas chamber; the cleaning device further includes a fan, when the fan is started, the sterilizing gas generating module is activated, the air in the inner liner can flow through the sterilizing gas generating module to form a sterilizing airflow, the sterilizing airflow returns to the inner liner through the dissolved gas chamber and the water cup, forming a gas sterilization circuit.

[0030] In a preferred embodiment, the cleaning device further includes a heating element disposed in the gas sterilization circuit for heating the fluid in the gas sterilization circuit.

[0031] In a preferred embodiment, the inner liner has a first sidewall and a second sidewall opposite to each other. The sterilization gas generating module is disposed on the first sidewall, and the second sidewall is provided with a bypass air duct. The second sidewall is provided with a first air inlet and a first air outlet, and the first sidewall is provided with a second air outlet. The bypass air duct connects the first air inlet and the first air outlet, and the second air outlet is connected to the air inlet. The heating element and the fan are disposed in the bypass air duct.

[0032] A cleaning device includes: an inner tank containing at least one spray arm; a water cup for supplying cleaning fluid to the spray arm; a dissolved air chamber with a volume smaller than that of the inner tank, the dissolved air chamber having a liquid inlet for supplying fluid into the dissolved air chamber; a sterilizing gas generating module for supplying sterilizing gas to the dissolved air chamber; a first flow channel, one end of which is connected to the dissolved air chamber and the other end to the water cup; and a second flow channel. One end of the flow channel is connected to the water cup, and the other end is connected to the liquid input section; a bypass flow channel is arranged in parallel with the water cup, one end of the bypass flow channel is connected to the first flow channel through a first control valve, and the other end of the bypass flow channel is connected to the second flow channel through a second control valve; a first drive unit is arranged in the second flow channel. After the sterilization gas generation module and the first drive unit are started, the dissolved gas chamber, the first flow channel, the bypass flow channel, the second flow channel, and the liquid input section can cooperate to form a circulating dissolved gas flow channel.

[0033] In a preferred embodiment, a water distribution valve is further provided on the second flow channel downstream of the first drive unit along the fluid flow direction. A liquid supply flow channel is provided between the water distribution valve and the spray arm. The first drive unit can pressurize the liquid supply flow channel. When the first control valve and the second control valve close the bypass flow channel, water in the water cup can be supplied to the spray arm through the liquid supply flow channel.

[0034] A control method based on any of the cleaning devices described above, the control method comprising: The preset mode of the cleaning device is obtained, and the preset mode includes at least a first mode and a second mode; When the preset mode is the first mode, the first drive unit is started, the circulating dissolved gas channel is connected, and the sterilization gas generation module is started to perform circulating dissolved gas. When the preset termination conditions are met, the sterilization gas generation module is turned off, and the dissolved fluid is guided to the spray arm for spray cleaning. Alternatively, before the preset termination condition is met, the dissolved fluid is directed to the spray arm for spray cleaning, and the sterilization gas generation module is turned off when the preset termination condition is met.

[0035] In a preferred embodiment, the cleaning device further includes a second drive unit for providing driving force for fluids flowing into and out of the sterilizing gas generating module, and the control method further includes activating the second drive unit during circulating dissolved gas.

[0036] In a preferred embodiment, the preset termination condition includes any one or a combination of the following: the circulation time of the circulating dissolved gas reaches a preset time or the concentration of the bactericidal substance in the fluid reaches a predetermined concentration.

[0037] In a preferred embodiment, the bactericidal gas generating module includes an electrolysis module capable of electrolyzing air to generate ozone, wherein the bactericidal substance is ozone, and the predetermined concentration is above 0.05 PPM.

[0038] In a preferred embodiment, a water distribution valve is further provided on the second flow channel downstream of the first drive unit along the fluid flow direction, and a liquid supply flow channel is provided between the water distribution valve and the spray arm. During the circulation and dissolution of gas and the guidance of the dissolved gas fluid to the spray arm for spray cleaning, the water distribution valve can simultaneously connect the water cup to the second flow channel and the liquid supply channel. Alternatively, during the circulation of dissolved air, the water distribution valve can connect the water cup to the second flow channel. When the dissolved air fluid is guided to the spray arm for spray cleaning, the water distribution valve connects the water cup to the second flow channel and the liquid supply channel simultaneously. Alternatively, during the circulating gas dissolution process, the water distribution valve connects the water cup to the second flow channel; and during the process of guiding the dissolved gas fluid to the spray arm for spray cleaning, the water distribution valve connects the water cup to the liquid supply flow channel.

[0039] In a preferred embodiment, the control method further includes: determining the real-time water volume contained in the cleaning device, and when the real-time water volume does not meet the predetermined water volume, adding water to the dissolved air chamber and / or the water cup.

[0040] In a preferred embodiment, the step of introducing water into the dissolved air chamber and / or the water cup includes: Water is introduced into the dissolved air chamber until the water introduction time reaches a predetermined time or the water introduction volume reaches a predetermined water introduction volume, so that a liquid seal layer with a predetermined height is formed in the dissolved air chamber; Alternatively, water can be added to the cup until the water addition time reaches a predetermined time or the water addition amount reaches a predetermined amount. After the water addition is completed, the first drive unit is activated to supply the water in the cup to the dissolved air chamber, so that a liquid seal layer with a predetermined height is formed in the dissolved air chamber.

[0041] In a preferred embodiment, the first drive unit integrates a heating module and / or a heating module is disposed in the circulating solvent flow channel. After the spray cleaning is completed, the control method further includes: The first drive unit is started and the heating module is started to circulate and heat the sterilized fluid after cleaning. After the preset cycle heating stop condition is met, the first drive unit and the heating module are turned off.

[0042] In a preferred embodiment, the first drive unit integrates a heating module and / or the first flow channel and / or the second flow channel are provided with a heating module, and the cleaning device further includes a heating element and a fan; After the first drive unit completes the spray cleaning, the control method further includes: The first drive unit, the heating module, the heating element, and the fan are started to perform cyclic heating; After the preset cycle heating stop condition is met, the first drive unit and the heating module are turned off, and the heating element and the fan are also turned off.

[0043] In a preferred embodiment, the preset cycle heating stop condition includes any one of the following: The cyclic heating time reaches the preset heating duration; The concentration of bactericidal substances in the circulating fluid in the circulating dissolved air channel is reduced to below a predetermined safe concentration.

[0044] In a preferred embodiment, the water cup is provided with a drain outlet, the drain outlet is connected to a drain pipe, and a drain pump is provided on the drain pipe; the control method further includes: After the circulating heating is completed, the drain pump is turned on to drain the fluid from the cleaning device.

[0045] In a preferred embodiment, the cleaning device includes a fan; when the preset mode is the second mode, the control method includes: Start the fan and the sterilization gas generation module to perform cyclic disinfection.

[0046] In a preferred embodiment, when the fan and the sterilizing gas generating module are started for cyclic disinfection, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the dissolved gas chamber, the first flow channel, the water cup, the inner liner.

[0047] In a preferred embodiment, the sterilizing gas generating module is provided with an air inlet and a sterilizing gas outlet. The air inlet is connected to the inner liner. A first air passage is provided between the sterilizing gas outlet and the air inlet of the dissolved gas chamber. A second air passage is provided between the sterilizing gas outlet and the inner liner. The cleaning device further includes an air passage control valve, which is used to control the opening and closing of the first air passage and the second air passage. When the fan and the sterilizing gas generating module are started, the second gas path is simultaneously connected through the gas path control valve to perform cyclic sterilization. During cyclic sterilization, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the second gas path and the inner liner.

[0048] In a preferred embodiment, the cleaning device further includes a heating element; the control method further includes starting the fan and the heating element to perform cyclic heating.

[0049] The technical solution of the present invention has the following significant beneficial effects: The cleaning device provided in this application embodiment, by setting an independent dissolved air chamber with a volume smaller than the inner liner, and cooperating with a sterilizing gas generating module capable of generating sterilizing gas, constructs a circulating dissolved air channel consisting of a dissolved air chamber, a first flow channel, a water cup, a second flow channel, a liquid input section, and a first driving unit. This achieves efficient circulation and dissolution of sterilizing gas and cleaning liquid. After multiple gas-liquid dissolutions, the circulating fluid and sterilizing gas in the circulating dissolved air channel can form a sterilizing cleaning liquid that meets the sterilization requirements. After the sterilizing cleaning liquid is supplied to the water cup and spray arm, it can reliably sterilize and decompose pesticide residues on the items to be cleaned in the inner liner at room temperature, achieving better sterilization and pesticide residue removal effects. This increases the functionality of the cleaning device and meets the diverse usage needs of users.

[0050] Specific embodiments of the invention are disclosed in detail below with reference to the description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0051] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0052] Figure 1 This is one of the structural schematic diagrams of the first type of cleaning device provided in the embodiments of this application; Figure 2 This is a second schematic diagram of the structure of the first type of cleaning device provided in the embodiments of this application; Figure 3 This is the third structural schematic diagram of the first type of cleaning device provided in the embodiments of this application; Figure 4 This is the fourth structural schematic diagram of the first type of cleaning device provided in the embodiments of this application; Figure 5 This is the fifth schematic diagram of the structure of the first type of cleaning device provided in the embodiments of this application; Figure 6 for Figure 1 A magnified view of a portion of point I in the middle; Figure 7This is one of the structural schematic diagrams of the second type of cleaning device provided in the embodiments of this application; Figure 8 This is a second structural schematic diagram of the second type of cleaning device provided in the embodiments of this application; Figure 9 This is one of the structural schematic diagrams of the third type of cleaning device provided in the embodiments of this application; Figure 10 This is a second schematic diagram of the structure of the third type of cleaning device provided in the embodiments of this application; Figure 11 This is a schematic diagram of the fourth type of cleaning device provided in the embodiments of this application; Figure 12 This is a flowchart illustrating the steps of a control method for a cleaning device provided in the embodiments of this application.

[0053] The reference numerals in the above figures are as follows: 1. Inner liner; 10. Spray arm; 11. First air inlet; 12. First air outlet; 13. Second air outlet; 2. Water cup; 3. Dissolved air chamber; 30. Liquid seal layer; 31. First connecting port; 32. Second connecting port; 33. Stop section; 34. Return chamber; 4. Sterilization gas generation module; 41. Air inlet; 42. Sterilization gas outlet; 43. Isolation components; 51. First drive unit; 52. Second drive unit; 61. First flow channel; 62. Second flow channel; 63. Liquid supply channel; 64. Bypass channel; 65. First airway; 66. Second air passage; 67. Bypass ventilation duct; 68. First air valve; 69. Second air valve; 71. Water distribution valve; 72. Drain valve; 73. First control valve; 74. Second control valve; 75. Drain pump; 76. Drainage pipe; 77. Drain pipe; 81. Infusion tubing; 82. Sprayer head; 91. Fan; 92. Heating element; X, left and right directions; Y, the height direction; Z, width direction. Detailed Implementation

[0054] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] Among related technologies, dishwashers' sterilization systems are ill-suited to the core needs of fruit and vegetable sterilization. While commonly used technologies such as high-temperature sterilization and UV sterilization can achieve some sterilization during dishwashing, their limitations prevent their application to fruit and vegetable sterilization. The main reasons are as follows: High-temperature sterilization inactivates microorganisms through high-temperature water, but this easily damages the cell walls of fruits and vegetables, causing nutrient loss and severely impacting their freshness, taste, and appearance. UV sterilization, on the other hand, relies on direct light exposure, creating natural blind spots and having limited effectiveness against pathogens and molds adhering to the surface of fruits and vegetables, thus failing to meet the sterilization standards for safe consumption.

[0057] In other technical fields, there are technologies that fuse bactericidal gases with water in one step. However, when bactericidal gases and water are fused in one step, the concentration of the bactericidal substance obtained is very low (usually the dissolved gas concentration is between 0.01 ppm and 0.03 ppm), which cannot achieve the effect of sterilization and removal of pesticide residues.

[0058] This invention provides a cleaning device and its control method, which can simply and reliably achieve the cleaning function of food (such as fresh fruits and vegetables), achieve better sterilization and pesticide residue removal effect, increase the functionality of the cleaning device, and meet the diverse needs of users.

[0059] Please refer to the following for comprehensive information. Figures 1 to 10 This application specification provides a cleaning device, which may include: an inner liner 1, wherein at least one spray arm 10 is disposed in the inner liner 1; a water cup 2, wherein the water cup 2 can provide cleaning fluid to the spray arm 10; a dissolved air chamber 3, wherein the volume of the dissolved air chamber 3 is smaller than the volume of the inner liner 1, and the dissolved air chamber 3 is provided with a liquid input section for supplying fluid into the dissolved air chamber 3; a bactericidal gas generating module 4, wherein the bactericidal gas generating module 4 is used to supply bactericidal gas to the dissolved air chamber 3; and a first flow channel 61. One end of the first flow channel 61 is connected to the dissolved gas chamber 3, and the other end is connected to the water cup 2; the second flow channel 62 is connected to the water cup 2 at one end and to the liquid input section at the other end; the first drive unit 51 is disposed in the second flow channel 62. After the sterilization gas generation module 4 and the first drive unit 51 are started, the dissolved gas chamber 3, the first flow channel 61, the water cup 2, the second flow channel 62, and the liquid input section can cooperate to form a circulating dissolved gas flow channel.

[0060] The cleaning device provided in this embodiment of the application sets up an independent dissolved air chamber 3 with a volume smaller than that of the inner liner 1, and cooperates with a sterilizing gas generating module 4 that can generate sterilizing gas to construct a circulating dissolved air channel composed of dissolved air chamber 3, first flow channel 61, water cup 2, second flow channel 62, liquid input part and first drive unit 51. This achieves efficient circulation and dissolution of sterilizing gas and cleaning liquid. After multiple gas-liquid dissolutions, the circulating fluid and sterilizing gas in the circulating dissolved air channel can form a sterilizing cleaning liquid that meets the sterilization requirements. After the sterilizing cleaning liquid is supplied to the water cup 2 and spray arm 10, it can reliably sterilize and decompose pesticide residues on the items to be cleaned in the inner liner 1 at room temperature, achieving better sterilization and pesticide residue removal effects, increasing the functionality of the cleaning device and meeting the diverse needs of users.

[0061] In this embodiment, the volume of the dissolved air chamber 3 is smaller than the volume of the inner liner 1.

[0062] Compared to the large-volume inner liner 1, the small-volume dissolved gas chamber 3 significantly reduces the dispersion space of the sterilizing gas, allowing the sterilizing gas and liquid to form a high-concentration contact environment within the limited chamber, which is conducive to improving the gas-liquid mixing efficiency and quickly forming a cleaning liquid containing sterilizing gas.

[0063] Specifically, the volume of the dissolved gas chamber 3 is within 5 liters. When the volume of the dissolved gas chamber 3 is controlled within 5 liters, the contact space between the sterilizing gas and the liquid can be maximized, completely avoiding gas dispersion within the chamber. This allows the sterilizing gas and liquid to fully contact and mix within a limited space, significantly improving the gas-liquid mixing rate and concentration. This enables the rapid preparation of a high-concentration sterilizing cleaning solution, further enhancing the sterilization effect. Furthermore, when the volume of the dissolved gas chamber 3 is controlled within 5 liters, it can better adapt to the installation space of the cleaning device, avoiding excessive space occupation due to an excessively large volume. This ensures the layout coordination between the dissolved gas chamber 3 and components such as the inner liner 1, water cup 2, and flow channel, making the overall structure of the cleaning device more compact and reasonable. Especially for embedded installation scenarios, where users have already reserved installation space for the cleaning device, when the volume of the dissolved gas chamber 3 is controlled within 5 liters, the cleaning device can be installed smoothly without expanding the reserved installation space.

[0064] In practical use, the sterilizing gas is supplied to the spray arm 10 in the form of dissolved cleaning liquid through the water cup 2. It is then sprayed onto all parts of the inner liner 1 along with the cleaning liquid through the spray arm 10, so as to achieve simultaneous cleaning and sterilization, which can improve the comprehensiveness and uniformity of sterilization of the inner liner 1 and the items to be cleaned.

[0065] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0066] The cleaning device mainly includes: inner tank 1, spray arm 10, water cup 2, dissolved air chamber 3, sterilization gas generation module 4, first drive unit 51, first flow channel 61, second flow channel 62, etc.

[0067] The sterilization gas generating module 4 may include an electrolysis module capable of electrolyzing air to generate ozone.

[0068] Specifically, the working principle of the sterilizing gas generating module 4 can vary depending on its specific form. For example, the sterilizing gas generating module 4 may include an electrolysis module capable of electrolyzing air to generate ozone. Alternatively, the sterilizing module may also be in other forms capable of generating sterilizing gases, and is not limited to the above description. Those skilled in the art may make other modifications based on the technical essence of this application, but as long as the functions and effects achieved are the same as or similar to those of this application, they should all be covered within the scope of protection of this application. In the embodiments of this application, the sterilizing gas generating module 4 is illustrated by an electrolysis module capable of electrolyzing air to generate ozone (hereinafter referred to as the ozone module), and the sterilizing gas can be ozone.

[0069] When ozone dissolves in the cleaning solution, it oxidizes and decomposes dirt and bacteria during cleaning, improving both cleaning and sterilization effects. This synergistic effect enhances the cleaning and sterilization functions of the cleaning device, improving its overall performance. Furthermore, the electrolysis module generates ozone from air, eliminating the need for any additional chemicals. After sterilization, the ozone decomposes into oxygen, ensuring the cleanliness and safety of the items being cleaned and optimizing the user experience. In addition, the inventors discovered during testing that using this ozone-containing sterilizing cleaning solution to clean fruits and vegetables also achieves excellent preservation results. After cleaning fruits and vegetables, if cooking is not immediately required, they can be placed in the cleaning device and removed for cooking later. This helps maintain the food's sterile and fresh state before cooking, further improving the user experience.

[0070] In this embodiment, the sterilizing gas generating module 4 is illustrated by taking an electrolysis module that can electrolyze air to generate ozone as an example, and the sterilizing gas can be ozone.

[0071] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4In this embodiment, the sterilizing gas generating module 4 and the dissolved gas chamber 3 can be integrated or set up independently. Spatially, the sterilizing gas generating module 4 can be entirely located inside the dissolved gas chamber 3, entirely located outside the dissolved gas chamber 3, or partially located inside and partially located outside the dissolved gas chamber 3.

[0072] Please refer to the following: Figure 3 and Figure 4 In one embodiment, the sterilizing gas generating module 4 is integrated with the dissolved gas chamber 3; or the sterilizing gas generating module 4 is disposed in the dissolved gas chamber 3, and an isolation component 43 is provided between the sterilizing gas generating module 4 and the liquid input section.

[0073] When the sterilization gas generation module 4 is integrated with the dissolved gas chamber 3, the delivery path of the sterilization gas can be significantly shortened, reducing gas loss and leakage during the delivery process. This allows the generated sterilization gas to directly and quickly enter the dissolved gas chamber 3 to participate in mixing, further improving the dissolved gas efficiency. At the same time, the integrated design reduces the independent installation space of the sterilization gas generation module 4 and the dissolved gas chamber 3, making the cleaning device structure more compact and reducing assembly complexity.

[0074] Alternatively, the sterilizing gas generating module 4 can be disposed in the dissolved gas chamber 3, and an isolator 43 can be provided between the sterilizing gas generating module 4 and the liquid input section. This arrangement can achieve the effect of directly supplying sterilizing gas to the dissolved gas chamber 3, and the isolator 43 can prevent the sterilizing gas generating module 4 from directly contacting the liquid in the dissolved gas chamber 3, preventing the liquid from corroding the components of the sterilizing gas generating module 4 and causing short circuits. This effectively ensures the working stability and service life of the sterilizing gas generating module 4, while avoiding the safety hazards caused by liquid contact with the module.

[0075] The specific form of the isolation element 43 may include: a water mist blocking structure, a baffle structure, etc. The form of the isolation element 43 is not limited to the above description. Those skilled in the art may make other changes based on the technical essence of this application. However, as long as the function and effect achieved are the same as or similar to this application, they should be covered within the scope of protection of this application.

[0076] like Figure 3 As shown, when the isolation element 43 is a water mist blocking structure, it can include multiple inclined and staggered baffles arranged below the sterilization gas generating module 4. The multiple baffles cooperate to form a flow channel for unidirectional fluid flow. The sterilization gas generated by the sterilization gas generating module 4, such as ozone, can flow downward through this flow channel, but the fluid in the dissolved gas chamber 3 cannot flow backward into the sterilization gas generating module 4 through this flow channel.

[0077] like Figure 4As shown, when the isolation element 43 is a baffle structure, it can include multiple corrugated baffles spaced apart below the sterilization gas generating module 4. The multiple baffles working together can form a unidirectional flow channel for the fluid. The sterilization gas generated by the sterilization gas generating module 4, such as ozone, can flow downwards through this flow channel, but the fluid in the dissolved gas chamber 3 cannot flow backwards into the sterilization gas generating module 4 through this flow channel.

[0078] In this embodiment, the first drive unit 51 is disposed in the second flow channel 62 and is used to provide driving force for the circulating fluid in the circulating dissolved air channel. Specifically, the first drive unit 51 can be in the form of a water pump. For example, it can be a circulating pump added separately for the circulating dissolved air channel, or the first drive unit 51 can also be in the form of a washing pump that is integrated into the cleaning device.

[0079] like Figure 5 As shown, in one embodiment, the cleaning device may further include a second drive unit 52, which is used to provide driving force for the fluid flowing into and out of the sterilizing gas generating module 4.

[0080] In this embodiment, by adding a second driving unit 52, the sterilizing gas of the sterilizing gas generation module 4 can be driven, the fluid flow in the module can be accelerated, the working environment of the module can be optimized, the sterilizing gas generation module 4 can be kept in a high-efficiency working state, the generation efficiency and output of sterilizing gas can be improved, and a continuous and sufficient gas source can be provided for the circulating dissolved gas. This prevents the sterilizing gas from being insufficient in flow power, low gas generation efficiency and discontinuous gas supply in the sterilizing gas generation module 4 due to relying solely on the circulation power of the first driving unit 51, which would affect the overall circulating dissolved gas efficiency.

[0081] Specifically, the second drive unit 52 can be integrated with the sterilization gas generation module 4 or set up independently; the second drive unit 52 can be in the form of an air pump, a fan 91, or other forms that can enhance gas flow. This application does not limit the specific form of the second drive unit 52. In use, the first drive unit 51 and the second drive unit 52 can work together to circulate dissolved gas.

[0082] For example, in practical use, after the sterilization gas generation module 4, the first drive unit 51, and the second drive unit 52 are started, they can form a circulating dissolved gas channel for efficient circulating dissolved gas. In particular, under the synergistic effect of the first drive unit 51 and the second drive unit 52, the supply of sterilization gas and the circulating dissolved gas in the dissolved gas chamber 3 form a synergistic effect of sufficient gas source and efficient mixing, avoiding the problem of low concentration of sterilization cleaning solution due to insufficient gas source supply, further improving the overall efficiency of circulating dissolved gas, ensuring the stability of sterilization effect, shortening the time required for cleaning and sterilization, and helping to achieve energy saving and improve user experience.

[0083] In one embodiment, a water distribution valve 71 is also provided on the second flow channel 62, and a liquid supply flow channel 63 is provided between the water distribution valve 71 and the spray arm 10.

[0084] In this embodiment, a water distribution valve 71 can be provided on the second flow channel 62. The water distribution valve 71 can guide at least part of the fluid in the circulating dissolved air channel through the liquid supply channel 63 to the spray arm 10, thereby cleaning the object to be cleaned in the inner tank 1.

[0085] In one specific embodiment, the first drive unit 51 is located on the second flow channel 62 between the water cup 2 and the water distribution valve 71, and the first drive unit 51 can pressurize the liquid supply flow channel 63.

[0086] In this embodiment, along the fluid flow direction, a water distribution valve 71 is provided on the second flow channel 62 downstream of the first drive unit 51, and a liquid supply flow channel 63 is provided between the water distribution valve 71 and the spray arm 10. This allows the first drive unit 51 to not only provide circulating power to the circulating dissolved gas flow channel but also to pressurize the liquid supply flow channel 63 between the water distribution valve 71 and the spray arm 10. It should be noted that the upstream-downstream relationship between the first drive unit 51 and the water distribution valve 71 is defined only with reference to the fluid flow direction; the actual vertical relationship between the first drive unit 51 and the water distribution valve 71 in physical space is not specifically limited herein.

[0087] In this way, there is no need to add a booster pump or other drive components for the liquid supply of the spray arm 10. The original circulating dissolved gas first drive unit 51 is used to achieve liquid supply boosting, reducing the number of parts of the cleaning device, reducing assembly complexity, and saving internal installation space. The overall structure of the cleaning device is compact and does not increase the external space required for the installation of the cleaning device.

[0088] In this embodiment, the first driving unit 51 can be a washing pump. The function of the first driving unit 51 is different in different stages. For example, in the above-mentioned circulating dissolved air stage, the first driving unit 51 is used to provide circulating driving force for the fluid in the circulating dissolved air channel; in the subsequent cleaning and sterilization stage, the first driving unit 51 is used to provide driving force for the sterilization cleaning liquid to flow into the spray arm 10.

[0089] In one embodiment, the water distribution valve 71 includes at least one of the following operating states or a combination thereof: a first operating state, a second operating state, and a third operating state; in the first operating state, the water distribution valve 71 is connected only to the second flow channel 62; in the second operating state, the water distribution valve 71 is simultaneously connected to the second flow channel 62 and the liquid supply flow channel 63; in the third operating state, the water distribution valve 71 connects only to the liquid supply flow channel 63.

[0090] In this embodiment, the water distribution valve 71 can include multiple working states. Under different working states, it can achieve: connecting only the second flow channel 62, connecting the second flow channel 62 and the liquid supply flow channel 63 at the same time, and connecting only the liquid supply flow channel 63. The precise control of the fluid direction can be achieved by switching the state of the water distribution valve 71.

[0091] During the actual operation of the cleaning device, the working state of the water distribution valve 71 can be flexibly switched.

[0092] When the water distribution valve 71 is in its first operating state (connected only to the second flow channel 62): pure dissolved gas circulation is achieved, quickly preparing a sterilizing cleaning solution with an ozone concentration meeting sterilization requirements, preparing for subsequent sterilization and cleaning. When the water distribution valve 71 is in its second operating state (connected to both the second flow channel 62 and the liquid supply channel 63): dissolved gas and cleaning are performed simultaneously. When the water distribution valve 71 is in its third operating state (connected only to the liquid supply channel 63): sterilization and cleaning are performed.

[0093] When the cleaning device is in use, the water distribution valve 71 can be controlled to be in a second working state. The water distribution valve 71 connects the second flow channel 62 and the liquid supply flow channel 63 simultaneously. When the sterilizing gas generation module 4 and the first drive unit 51 and the second drive unit 52 are activated, the sterilizing gas generation module 4 introduces sterilizing gas into the dissolved gas chamber 3. The liquid input part guides the fluid to the dissolved gas chamber 3, where it mixes with the sterilizing gas to form a sterilizing cleaning solution. The sterilizing cleaning solution passes through the first flow channel 61, the water cup 2, and the second flow channel 62. At the water distribution valve 71, part of it returns to the dissolved gas chamber 3 for dissolved gas circulation, and part of it flows into the spray arm 10 through the liquid supply flow channel 63. Subsequently, it returns to the water cup 2 through the inner tank 1.

[0094] When the cleaning device is in use, the water distribution valve 71 can be controlled to first be in the first working state and then switch to the third working state.

[0095] Specifically, in the first working state, the water distribution valve 71 only connects the second flow channel 62. When the sterilizing gas generating module 4 and the first drive unit 51 and the second drive unit 52 are activated, the sterilizing gas generating module 4 introduces sterilizing gas into the dissolved gas chamber 3. The liquid input section guides the fluid to the dissolved gas chamber 3, where it mixes with the sterilizing gas to form a sterilizing cleaning solution. The sterilizing cleaning solution returns to the dissolved gas chamber 3 through the liquid outlet channel, the water cup 2, and the liquid inlet channel for dissolved gas circulation. After the dissolved gas circulation is completed, the first working state can be switched to the third working state.

[0096] In the third working state, the water distribution valve 71 only connects the liquid supply channel. When the sterilization gas generation module 4 and the drive unit are closed and the first drive unit 51 is started, the sterilization and cleaning in the water cup 2 also flows into the spray arm 10 through the liquid supply channel 63, and then returns to the water cup 2 through the inner liner 1 to clean the food in the inner liner 1.

[0097] Furthermore, during use, the water distribution valve 71 can be controlled to first be in a first working state and then switch to a second working state; or, it can be controlled to first be in a first working state, then switch to a second working state, and then switch to a third working state. Specifically, the specific switching of the working state of the water distribution valve 71 can be adjusted according to the design of the working mode of the cleaning device, the concentration of bactericidal substances in the bactericidal cleaning solution, etc. Those skilled in the art can design based on the embodiments disclosed in this application, and this application does not make a unique limitation.

[0098] Please refer to the following: Figure 1 and Figure 6 In one embodiment, the cleaning device includes a dissolved air chamber, inside which the dissolved air cavity 3 is formed. The dissolved air chamber is independently disposed on the outer side wall of the inner liner 1, or the dissolved air chamber is integrated on the outer side wall of the inner liner 1, and the dissolved air cavity 3 is not directly connected to the inner liner 1.

[0099] In this embodiment, the dissolved gas chamber 3 can be formed by a dissolved gas box. Specifically, the dissolved gas box can be independently set on the outer side wall of the inner liner 1, or the dissolved gas box can be integrated on the outer side wall of the inner liner 1. When the dissolved gas box is integrated on the outer side wall of the inner liner 1, the dissolved gas box and the inner liner 1 can share a part of the side wall.

[0100] The dissolved gas chamber 3 is not directly connected to the inner liner 1. This avoids diluting the concentration of the bactericidal gas in the dissolved gas chamber 3 after the large volume of the inner liner 1 is connected to the dissolved gas chamber 3. This ensures that the bactericidal gas (ozone) is concentrated and supplied to the dissolved gas chamber 3, thereby ensuring the efficient formation of a bactericidal cleaning solution with a high concentration of ozone in the dissolved gas chamber 3.

[0101] Please refer to the following: Figure 1 and Figure 6 In one embodiment, the dissolved gas box is a plate-shaped hollow box with relative height, width and thickness dimensions; the liquid input part includes a liquid infusion pipe 81 communicating with the box, and a plurality of spaced nozzles 82 are provided on the liquid infusion pipe 81 in the height direction Y and / or the width direction Z.

[0102] In this embodiment, the dissolved gas chamber can be a flat, hollow box with relative height, width, and thickness dimensions. Specifically, in the height direction (Y), the height is smaller than the height of the inner liner 1; in the width direction (Z), the width is smaller than the width of the inner liner 1; and in the left-right direction (X), the thickness is smaller than both the height and width dimensions. Thus, when the dissolved gas chamber is installed on the outer wall of the inner liner 1, the unused space on the outer side of the inner liner 1 can be maximized, minimizing the required installation space.

[0103] In this embodiment, the liquid input section may include an infusion pipe 81 connected to the housing. The nozzles 82 provided on the infusion pipe 81 are distributed at intervals along the height direction Y and / or the width direction Z, allowing the liquid to enter the dissolved gas chamber 3 in multiple jets from multiple directions and positions, so that the liquid is evenly distributed in the dissolved gas chamber 3 and forms all-round, dead-angle-free contact with the bactericidal gas, thereby structurally improving the gas-liquid dissolution efficiency.

[0104] Specifically, the nozzle 82 can be an atomizing nozzle 82, which can disperse the liquid into micro-droplets, greatly increasing the specific surface area of ​​the liquid. This allows for all-around contact with the bactericidal gas in the dissolved gas chamber 3, breaking the local limitations of liquid-gas contact and maximizing the gas-liquid contact efficiency in terms of morphology, thus laying the foundation for rapid dissolution of the bactericidal gas.

[0105] like Figure 6 As shown, in one embodiment, a stop mechanism is provided at the bottom of the dissolved gas chamber 3. The stop mechanism is used to form a liquid seal layer 30 of a predetermined height at the bottom of the dissolved gas chamber 3. The air inlet of the dissolved gas chamber 3 is located above the liquid seal layer 30, and the liquid outlet of the liquid input part is at least partially located above the liquid seal layer 30.

[0106] In this embodiment, a stop mechanism is provided at the bottom of the dissolved gas chamber 3, which forms a liquid seal layer 30 of a predetermined height at the bottom of the dissolved gas chamber 3. This prevents the bactericidal gas from escaping from the connecting opening at the bottom of the dissolved gas chamber 3, thus extending the residence time of the bactericidal gas in the dissolved gas chamber 3, ensuring sufficient contact time between the gas and liquid to complete dissolution, and significantly improving the utilization rate of the bactericidal gas. In addition, the liquid seal layer 30 also prevents bactericidal gas (such as ozone) from escaping into the inner liner 1 through the first flow channel 61, and then escaping into the air when the user opens the cleaning device midway.

[0107] In one embodiment, the sterilization gas generating module 4 is provided with an air inlet 41 and a sterilization gas outlet 42. The air inlet 41 is connected to the inner liner 1, and the sterilization gas outlet 42 is connected to the air inlet of the dissolved gas chamber 3.

[0108] In this embodiment, the air inlet 41 of the sterilization gas generating module 4 is connected to the inner liner 1. When the sterilization gas generating module 4 is working and the second drive unit 52 is started, the air inside the inner liner 1 can be used as the raw material for generating sterilization gas. There is no need to set an additional external air inlet on the outer shell of the cleaning device, which reduces the number of openings in the cleaning device. This simplifies the structural design and processing technology, reduces the risk of gas leakage from the openings, and prevents external impurities from entering the sterilization gas generating module 4 and causing blockage or damage to the sterilization gas generating module 4, thus ensuring the working stability and service life of the sterilization gas generating module 4.

[0109] like Figure 6 As shown, in one embodiment, the stop mechanism forms a return liquid cavity 34 with the side wall of the dissolved gas cavity 3, and one end of the first flow channel 61 communicates with the return liquid cavity 34; the stop mechanism includes a first communication port 31 disposed near the bottom wall of the dissolved gas cavity 3 and a stop portion 33 located downstream of the first communication port 31, the stop portion 33 extending upward from the bottom wall, and the height of the stop portion 33 being higher than or equal to the height of the liquid seal layer 30.

[0110] In this embodiment, the stop mechanism and the side wall of the dissolved gas chamber 3 enclose a return liquid chamber 34, and one end of the first flow channel 61 communicates with the return liquid chamber 34. The stop mechanism includes a first connecting port 31 near the bottom wall of the dissolved gas chamber 3 and a stop portion 33 located downstream of it. The stop portion 33 extends upward from the bottom wall and its height is greater than or equal to the height of the liquid seal layer 30. The stop portion 33 and the first connecting port 31 cooperate to form an S-shaped flow channel in the lower part of the dissolved gas chamber 3. Specifically, the bactericidal cleaning liquid in the dissolved gas chamber 3 flows out through the first connecting port 31, flows upward along the stop portion 33 from bottom to top, passes the highest point of the stop portion 33, and then flows downward from top to bottom into the first flow channel 61.

[0111] Because the liquid level difference between the dissolved gas chamber 3 and the return liquid chamber 34, along with the liquid seal layer 30, forms a continuous liquid column, a siphon effect can be created within the S-shaped flow channel. The siphon effect formed by the S-shaped flow channel generates continuous self-priming and pumping power, actively drawing the sterilizing cleaning liquid at the bottom of the dissolved gas chamber 3 into the return liquid chamber 34 and sending it into the first flow channel 61, forming a dual-power synergy with the power of the first drive unit 51. Compared to the static liquid in a simple static liquid seal, the continuous liquid column in the S-shaped flow channel has a stronger sealing effect on the gas phase space of the dissolved gas chamber 3. It can both block the escape path of sterilizing gas from the first connecting port 31 into the return liquid chamber 34 and the first flow channel 61, and counteract the small pressure fluctuations caused by the continuous generation of gas within the dissolved gas chamber 3, preventing gas leakage caused by the pressure pushing open the liquid seal layer 30. It can form a double liquid seal protection with the structural design where the height of the stop part 33 is greater than or equal to the height of the liquid seal layer 30, ensuring the reliability of the liquid seal.

[0112] like Figures 1 to 6 As shown, in the first embodiment, the top of the return liquid chamber 34 is provided with a second communication port 32, and the return liquid chamber 34 is connected to the space above the liquid seal layer 30 of the dissolved gas chamber 3 through the second communication port 32.

[0113] In this embodiment, a second connecting port 32 is provided at the top of the return liquid chamber 34. This second connecting port 32 connects the return liquid chamber 34 to the space above the liquid seal layer 30 in the dissolved gas chamber 3, achieving pressure balance between the return liquid chamber 34 and the dissolved gas chamber 3. This pressure balance prevents excessive pressure caused by gas accumulation in the dissolved gas chamber 3, preventing high pressure from forcing the liquid out of the liquid seal layer 30 and ensuring that the height of the liquid seal layer 30 remains within a predetermined range. This provides a guarantee for the liquid seal effect from a pressure perspective, further improving the stability of the dissolved gas chamber 3. In addition, ensuring pressure balance between the return liquid chamber 34 and the dissolved gas chamber 3 also prevents negative pressure from forming in the return liquid chamber 34 due to continuous liquid outflow, which would prevent the liquid in the dissolved gas chamber 3 from smoothly entering the return liquid chamber 34. This ensures the liquid transport efficiency of the first flow channel 61 and makes the operation of the circulating dissolved gas flow channel smoother.

[0114] Furthermore, for situations where the cleaning device has multiple modes and requires switching between different modes, for example, in the first mode, a sterilizing cleaning solution is used to clean the food in the inner tank 1 to achieve water washing and sterilization; this first mode is the water washing and sterilization mode. In the second mode, a sterilizing gas is used to sterilize the tableware and / or kitchen utensils in the inner tank 1; this second mode is the gas sterilization mode. In the above embodiment, by providing the second connecting port 32, it is also possible to share some equipment and pipelines and directly achieve rapid switching from the first mode to the second mode without needing to discharge the liquid seal layer 30 in the dissolved gas chamber 3.

[0115] Please refer to the following: Figure 1 and Figure 2Specifically, the inner liner 1 is provided with a first air inlet 11, a first air outlet 12, and a second air outlet 13; the cleaning device further includes a fan 91 and a bypass duct 67, the bypass duct 67 being connected between the first air inlet 11 and the first air outlet 12, and the second air outlet 13 being connected to the air inlet 41; the bypass duct 67, the inner liner 1, the sterilizing gas generating module 4, the dissolved gas chamber 3, the second connecting port 32, the first flow channel 61, and the water cup 2 can be connected in sequence; when the fan 91 and the sterilizing gas generating module 4 are started, the sterilizing gas generating module 4 produces The generated sterilizing gas can return to the sterilizing gas generation module 4 through the dissolved gas chamber 3, the second connecting port 32, the first flow channel 61, the water cup 2, the inner liner 1, the bypass air duct 67, and the inner liner 1. This achieves a gas sterilization mode with efficient gas circulation without needing to empty the liquid seal layer 30 of the dissolved gas chamber 3. The sterilizing gas (such as ozone) circulates in gaseous form through the inner liner 1 and each flow channel. Without the need for high temperature or chemical agents, it can kill bacteria, mold, and other microorganisms on the surface of tableware and kitchen utensils, while avoiding high temperature damage to the cell walls, nutrients, and fresh taste of fresh ingredients such as fruits and vegetables. It is suitable for the needs of various sterilized items. Driven by the fan 91, the sterilizing gas continuously circulates along the closed-loop path of the sterilizing gas generating module 4, the dissolved gas chamber 3, the second connecting port 32, the first flow channel 61, the water cup 2, the inner liner 1, the bypass air duct 67, the inner liner 1, and the sterilizing gas generating module 4. The gas can penetrate into areas that are difficult to cover by traditional disinfection methods, such as the gaps in the inner liner 1, the dead corners of the spray arm 10, and the inner wall of the flow channel, to thoroughly eliminate hidden microorganisms and improve the comprehensiveness of disinfection.

[0116] In this embodiment, the cleaning device uses the second connecting port 32 to connect the gas phase space above the liquid seal in the dissolved gas chamber 3 with the return liquid chamber 34, allowing for switching between different modes without emptying the liquid seal layer 30 at the bottom of the dissolved gas chamber 3. Specifically, on the one hand, the liquid seal layer 30 remains intact under different operating conditions. When switching back to the first mode for dissolved gas cleaning, there is no need to re-prepare the liquid seal; the device can be started directly and put into operation, significantly reducing the time spent on mode switching and improving the overall operating efficiency of the cleaning device. On the other hand, retaining the liquid seal layer 30 prevents the bactericidal gas dissolved in the liquid seal from being lost with the drain, reducing the waste of gas and water resources.

[0117] In this embodiment, the gas sterilization mode and water washing sterilization mode of the cleaning device can share the sterilization gas generation module 4, the first flow channel 61, the water cup 2, and the inner tank 1. There is no need to set up separate sterilization gas generation modules 4 and flow channels for gas sterilization and water washing sterilization. This allows one system to carry two different functions, which can significantly reduce the number of pipes, valves, and other components. This reduces the manufacturing cost and assembly complexity of the equipment, reduces the leakage risks and failure points at the connection of multiple pipes, and improves the long-term stability of the cleaning device. At the same time, the shared pipeline allows the gas and liquid two-phase media to flow in an orderly manner along the same path without the need for additional changes to the pipeline connection relationship, further simplifying the control logic for switching operating conditions.

[0118] Please refer to the following: Figures 7 to 8 In the second embodiment, the bottom of the dissolved gas chamber 3 is connected to a drain pipe 77, and a drain valve 72 is provided on the drain pipe 77. When the drain valve 72 is opened, it is used to discharge the liquid seal layer 30 in the dissolved gas chamber 3.

[0119] In this embodiment, the main difference from the first embodiment is that a drain pipe 77 is added to the bottom of the dissolved gas chamber 3, and a drain valve 72 is provided on the drain pipe 77. In addition, the second connecting port 32 can be omitted. When it is necessary to switch from the first mode to the second mode, the drain valve 72 can be opened first, and the drain pipe 77 can be connected to drain the liquid seal layer 30 in the dissolved gas chamber 3.

[0120] Specifically, one end of the drain pipe 77 can be connected to the bottom wall of the dissolved gas chamber 3, and the other end can be connected to the water cup 2. A drain pipe 76 can be installed on the water cup 2, and a drain pump 75 can be installed on the drain pipe 76. When it is necessary to discharge the liquid seal layer 30 from the dissolved gas chamber 3, the drain valve 72 and the drain pump 75 can be opened simultaneously. Using the suction action of the drain pump 75, the liquid seal layer 30 in the dissolved gas chamber 3 is quickly discharged to the designated location through the drain pipe 77, the water cup 2, and the drain pipe 76.

[0121] After the liquid seal layer 30 is emptied, there is no liquid obstruction in the dissolved gas chamber 3, and the sterilizing gas can directly enter the first flow channel 61 through the dissolved gas chamber 3. The gas flow resistance is relatively small, and under the same power of the fan 91, a larger gas flow rate and a faster circulation speed can be achieved, which makes the sterilizing gas in the inner liner 1 refresh faster and greatly improves the efficiency and intensity of gas disinfection.

[0122] Specifically, the inner liner 1 is provided with a first air inlet 11, a first air outlet 12, and a second air outlet 13; the cleaning device further includes a fan 91 and a bypass duct 67, the bypass duct 67 being connected between the first air inlet 11 and the first air outlet 12, and the second air outlet 13 being connected to the air inlet 41; the bypass duct 67, the inner liner 1, the sterilizing gas generating module 4, the dissolved gas chamber 3, the first flow channel 61, and the water cup 2 can be connected in sequence; after the liquid seal layer 30 in the dissolved gas chamber 3 is discharged through the drain pipe 77, when the fan 91 and the sterilizing gas generating module 4 are started, the sterilizing gas generated by the sterilizing gas generating module 4 can return to the sterilizing gas generating module 4 through the dissolved gas chamber 3, the first flow channel 61, the water cup 2, the inner liner 1, the bypass duct 67, and the inner liner 1, thereby achieving gas sterilization of the items in the inner liner.

[0123] In this embodiment, the cleaning device can switch between a first mode and a second mode. When the cleaning device executes different modes, it can achieve similar technical effects to the first type of embodiment described above, except that the liquid seal layer 30 needs to be removed. For example, in the second mode, a pure gas closed-loop circuit is formed in the cleaning device. This pure gas closed-loop circuit can reuse the original sterilization gas generating module 4, the first flow channel 61, the water cup 2, the air outlet of the inner liner 1, and other components. There is no need to add an independent gas path, drive, or control unit for pure gas sterilization. The working condition can be switched simply by opening the drain valve 72 to drain the liquid seal and then starting the fan 91 / sterilization gas generating module 4. While expanding the functions, it avoids increasing the complexity of the device structure and manufacturing costs. Moreover, the control logic is simple and easy to automate.

[0124] Please refer to the following: Figures 9 to 10 In the third embodiment, the sterilizing gas generating module 4 is provided with an air inlet 41 and a sterilizing gas outlet 42. The air inlet 41 is connected to the inner liner 1. A first air passage 65 is provided between the sterilizing gas outlet 42 and the air inlet of the dissolved gas chamber 3. A second air passage 66 is provided between the sterilizing gas outlet 42 and the inner liner 1. The cleaning device also includes an air passage control valve, which is used to control the opening and closing of the first air passage 65 and the second air passage 66.

[0125] In this embodiment, the main difference from the first type of embodiment described above is that a first air passage 65 is provided between the sterilization gas outlet 42 and the air inlet of the dissolved gas chamber 3, a second air passage 66 is provided between the sterilization gas outlet 42 and the inner liner 1, and an air passage control valve is provided to control the opening and closing of the first air passage 65 and the second air passage 66.

[0126] This embodiment directly switches the sterilizing gas delivery path by controlling the on / off state of the gas path control valve. Compared to the second embodiment, it eliminates the need for operations such as opening the drain valve 72, emptying the liquid seal layer 30, and closing the drain valve 72, thus saving waiting time and operational steps for switching operating conditions. Opening the first gas path 65 enters the first mode, allowing the sterilizing gas to enter the dissolved gas chamber 3 to prepare the sterilizing cleaning solution; opening the second gas path 66 allows the sterilizing gas to enter the inner tank 1, entering the second mode for pure gas sterilization. The switching between the two different modes of the cleaning device can be completed by using the switching control of this gas path control valve, making the operation process simpler, more convenient, and more efficient.

[0127] The pneumatic control valve may include a first pneumatic valve 68 and a second pneumatic valve 69. The first pneumatic valve 68 is disposed on the first pneumatic passage 65 and is used to control the on / off state of the first pneumatic passage 65. The second pneumatic valve 69 is disposed on the second pneumatic passage 66 and is used to control the passage of the second pneumatic passage 66. Alternatively, the first pneumatic passage 65 and the second pneumatic passage 66 may have a portion that passes through a common pneumatic passage. The pneumatic control valve may be disposed at the junction of the first pneumatic passage 65 and the second pneumatic passage 66 and the common pneumatic passage. The pneumatic control valve itself may be a switching valve, capable of switching the on / off state of the first pneumatic passage 65 and the second pneumatic passage 66.

[0128] In one specific embodiment, the inner liner 1 is provided with a first air inlet 11, a first air outlet 12, and a second air outlet 13; the cleaning device may further include a fan 91 and a bypass duct 67, the bypass duct 67 being connected between the first air inlet 11 and the first air outlet 12, and the second air outlet 13 being connected to the air inlet 41; the bypass duct 67, the inner liner 1, the sterilizing gas generating module 4, and the first air passage 65 can be sequentially connected; when the first air passage 65 is connected and the fan 91 and the sterilizing gas generating module 4 are started, the sterilizing gas generated by the sterilizing gas generating module 4 can return to the sterilizing gas generating module 4 through the bypass duct 67 and the inner liner 1; or, the sterilizing gas generated by the sterilizing gas generating module 4 can return to the sterilizing gas generating module 4 through the inner liner 1, the bypass duct 67, and the inner liner 1.

[0129] In this embodiment, one end of the second air passage 66 is connected to the sterilizing gas generating module 4, and the other end of the second air passage 66 can be connected to a bypass duct or to the inner liner 1. When the other end of the second air passage 66 is connected to the bypass duct 67, and the cleaning device enters the second mode, with the second air passage 66 connected and the fan 91 and the sterilizing gas generating module 4 activated, the sterilizing gas generated by the sterilizing gas generating module 4 can return to the sterilizing gas generating module 4 through the bypass duct 67 and the inner liner 1. When the other end of the second air passage 66 is connected to the inner liner 1, with the second air passage 66 connected and the fan 91 and the sterilizing gas generating module 4 activated, the sterilizing gas generated by the sterilizing gas generating module 4 can return to the sterilizing gas generating module 4 through the inner liner 1, the bypass duct 67, and the inner liner 1.

[0130] To prevent short circuits in the sterilizing gas, the other end of the second gas passage 66 is positioned away from the air inlet 41. This allows the sterilizing gas to cover the interior space of the inner liner 1 as much as possible when it flows through it, ensuring that the items to be sterilized (such as tableware and / or kitchen utensils) contained in the inner liner 1, as well as the inner liner 1 itself, are effectively sterilized.

[0131] In some embodiments, a heating element 92 may also be provided in the bypass duct 67.

[0132] In this embodiment, the cleaning device can be equipped with a heating element 92 in the bypass duct 67 to increase the temperature of the airflow passing through it.

[0133] Specifically, when the sterilization gas generation module 4 is an ozone module, when the cleaning device starts the second mode for cyclic sterilization, a certain amount of residual ozone will remain at the end of sterilization. When the bypass duct 67 is equipped with a heating element 92, the heating element 92 can be activated at the end of sterilization to decompose the residual ozone and quickly decompose it into non-toxic oxygen. At the same time, while the heating element 92 is activated, the fan 91 can also be kept running, so that the bypass duct 67 and the inner liner 1 can still form a closed-loop air path. The heated airflow continuously circulates between the bypass duct 67 and the inner liner 1, covering all areas with residual ozone without dead angles, allowing the residual ozone to fully contact and completely decompose with the heated airflow, thus solving the ozone residue problem from the root.

[0134] In addition, the cleaning device may also include a third mode for drying tableware and / or kitchenware in the inner tank 1. When the third mode is turned on, the fan 91 and the heating element 92 can be started at the same time, so that hot air can circulate in the bypass air duct 67 and the inner tank 1, thereby efficiently drying the tableware and / or kitchenware in the inner tank 1.

[0135] In one embodiment, the first drive unit 51 integrates a heating module and / or the circulating dissolved gas channel is provided with a heating module.

[0136] In this embodiment, the first drive unit can be a washing pump with an integrated heating module.

[0137] In this system, at least one of the first drive unit 51 and the circulating dissolved air channel may be equipped with a heating module. When the cleaning device operates in the first mode and finishes cleaning the food in the inner liner 1, there may be some residual ozone in the sterilizing cleaning solution of the circulating dissolved air channel. To remove the residual ozone in the sterilizing cleaning solution of the circulating dissolved air channel, the heating module can be activated, and the first drive unit 51 can be activated simultaneously. When the sterilizing cleaning solution flows through the heating module, it can be heated to a temperature range where ozone is easily decomposed, thereby quickly decomposing the ozone into non-toxic oxygen. In addition, in the case where a bypass duct 67 is provided, and the bypass duct 67 is equipped with a heating element 92, the bypass duct 67 and the heating element 92 can also be activated simultaneously with the activation of the first drive unit 51 and the heating module to decompose the ozone emitted from the sterilizing cleaning solution in the inner liner 1.

[0138] In one embodiment, the sterilizing gas generating module 4 is disposed inside or outside the dissolved gas chamber 3; the sterilizing gas generating module 4 is provided with an air inlet 41 and a sterilizing gas outlet 42, the air inlet 41 is connected to the inner liner 1, and the sterilizing gas outlet 42 is connected to the dissolved gas chamber 3; the cleaning device also includes a fan 91, when the fan 91 is started, the sterilizing gas generating module 4 is started, the air in the inner liner 1 can flow through the sterilizing gas generating module 4 to form a sterilizing airflow, the sterilizing airflow returns to the inner liner 1 through the dissolved gas chamber 3 and the water cup 2, forming a gas sterilization circuit.

[0139] In this embodiment, the relative positional relationship between the sterilization gas generating module 4 and the dissolved gas chamber 3 can be referred to the specific description of the above embodiment, and will not be repeated here.

[0140] The cleaning device includes a fan 91 that provides the driving force for the flow of sterilizing gas. Specifically, there can be one or more fans 91. The fan 91 can be equipped with a bypass duct 67 and / or the fan 91 can be located within the sterilizing gas generation module 4, or in other locations capable of driving the flow of sterilizing gas.

[0141] Furthermore, the cleaning device may also include a heating element 92, which is disposed in the gas sterilization circuit and is used to heat the fluid in the gas sterilization circuit.

[0142] In this embodiment, the function of the heating element 92 can be the same as that of the heating module described above, and it can be used to decompose the residual ozone in the gas sterilization circuit when sterilization is completed.

[0143] In one specific embodiment, the inner liner 1 has a first sidewall and a second sidewall opposite to each other. The sterilization gas generating module 4 is disposed on the first sidewall, and the second sidewall is provided with a bypass air duct 67. The second sidewall is provided with a first air inlet 11 and a first air outlet 12, and the first sidewall is provided with a second air outlet 13. The bypass air duct 67 connects the first air inlet 11 and the first air outlet 12, and the second air outlet 13 is connected to the air inlet 41. The heating element 92 and the fan 91 are disposed in the bypass air duct 67.

[0144] In this embodiment, the inner liner 1 can be a box-like structure, having a front side facing the user, a rear side opposite the front side, a left side and a right side opposite each other, and a top side and a bottom side opposite each other. The first sidewall and the second sidewall can be respectively located on the left and right sides of the inner liner 1. Specifically, the sterilization gas generation module 4 is located on the first sidewall, and the bypass duct 67, equipped with a heating element 92 and a fan 91, is located on the second sidewall, forming a gas sterilization circuit with a clear flow path that effectively covers the internal space of the inner liner 1.

[0145] For example, when the cleaning device enters the second mode, the fan 91 and the sterilization gas generation module 4 are activated. The sterilization airflow can quickly and thoroughly cover the inner liner 1 chamber, driving ozone molecules to quickly diffuse to the gaps, grooves, and other sterilization areas of the inner liner 1, improving the efficiency of gas circulation sterilization. When sterilization is completed, the fan 91 is kept running, the heating element 92 is activated, and the sterilization gas generation module 4 is turned off. The sterilization airflow heated by the heating element 92 can quickly circulate in the gas sterilization circuit, and the ozone in the sterilization airflow decomposes into oxygen, solving the problem of possible local ozone residue and stagnation at the end of the second mode.

[0146] Please see Figure 11In the fourth embodiment, the cleaning device may include: an inner liner 1, wherein at least one spray arm 10 is disposed therein; a water cup 2, wherein the water cup 2 can provide cleaning fluid to the spray arm 10; a dissolved air chamber 3, wherein the volume of the dissolved air chamber 3 is smaller than the volume of the inner liner 1, and the dissolved air chamber 3 is provided with a liquid input section for supplying fluid into the dissolved air chamber 3; a bactericidal gas generating module 4, wherein the bactericidal gas generating module 4 is used to supply bactericidal gas to the dissolved air chamber 3; a first flow channel 61, one end of the first flow channel 61 being connected to the dissolved air chamber 3 and the other end being connected to the water cup 2; and a second flow channel 62. One end of 62 is connected to the water cup 2, and the other end is connected to the liquid input section; a bypass channel 64 is arranged in parallel with the water cup 2, one end of the bypass channel 64 is connected to the first channel 61 through the first control valve 73, and the other end of the bypass channel 64 is connected to the second channel 62 through the second control valve 74; a first drive unit 51 is arranged in the second channel 62. After the sterilization gas generation module 4 and the first drive unit 51 are started, the dissolved gas chamber 3, the first channel 61, the bypass channel 64, the second channel 62, and the liquid input section can cooperate to form a circulating dissolved gas channel.

[0147] In this embodiment, the main difference from the first type of embodiment described above is that the cleaning device further includes a bypass channel 64 connected in parallel with the water cup 2. One end of the bypass channel 64 is connected to the first channel 61 through a first control valve 73, and the other end of the bypass channel 64 is connected to the second channel 62 through a second control valve 74.

[0148] In actual use, during the circulating dissolved air stage, the first control valve 73 and the second control valve 74 are used, and the bypass channel 64 can short-circuit the water cup 2. The dissolved air chamber 3, the first channel 61, the bypass channel 64, the second channel 62, and the liquid input section can cooperate to form a circulating dissolved air channel.

[0149] Considering that the water cup 2, as a liquid storage component, has a certain volume, it would lengthen the circulation path and cause stagnation of the gas-liquid mixture within the water cup 2, potentially negatively interfering with the gas-liquid contact frequency and dissolving efficiency during gas circulation. In this embodiment, during gas circulation, the water cup 2 is short-circuited through the bypass channel 64, which overcomes the above problems. This significantly shortens the circulation path of the gas-liquid mixture, reduces flow resistance, and, under the same power of the first drive unit 51, significantly increases the gas-liquid circulation rate, effectively increasing the contact mixing frequency of gas and liquid within the dissolving chamber 3.

[0150] Specifically, downstream of the first drive unit 51, a water distribution valve 71 is also provided on the second flow channel 62 along the fluid flow direction. A liquid supply channel 63 is provided between the water distribution valve 71 and the spray arm 10. The first drive unit 51 can pressurize the liquid supply channel 63. When the first control valve 73 and the second control valve 74 close the bypass channel 64, the water in the water cup 2 can be supplied to the spray arm 10 through the liquid supply channel 63.

[0151] In this embodiment, the first driving unit 51 can be a washing pump. The function of the first driving unit 51 is different in different stages. For example, in the above-mentioned circulating dissolved air stage, the first driving unit 51 is used to provide circulating driving force for the fluid in the circulating dissolved air channel; in the subsequent cleaning and sterilization stage, the first driving unit 51 is used to provide driving force for the sterilization cleaning liquid to flow into the spray arm 10.

[0152] In practical use, when switching from the circulating dissolved air stage to the cleaning and sterilization stage, the first control valve 73 and the second control valve 74 can be switched to connect the bypass pipeline to the first flow channel 61 and the second flow channel 62 and disconnect the water cup 2 from the first flow channel 61 and the second flow channel 62, or switch the bypass pipeline to disconnect the first flow channel 61 and the second flow channel 62 and connect the water cup 2 to the first flow channel 61 and the second flow channel 62.

[0153] The specific function and working principle of the water distribution valve 71 can be referred to the detailed description of the above embodiments, and will not be repeated here. The cleaning device described above can also achieve the technical effects of functional component reuse mentioned in the above embodiments, and will not be repeated here.

[0154] Please see Figure 12 Based on the cleaning device described in the above embodiments, this application also provides a control method for the cleaning device, the control method including the following steps: Step S10: Obtain the preset mode of the cleaning device, wherein the preset mode includes at least a first mode and a second mode; Step S12: When the preset mode is the first mode, start the first drive unit 51, connect the circulating dissolved gas channel, start the sterilization gas generation module 4, and perform circulating dissolved gas. Step S14: When the preset termination condition is met, the sterilization gas generation module 4 is turned off, and the dissolved fluid is guided to the spray arm 10 for spray cleaning. Step S16: Alternatively, before the preset end conditions are met, the dissolved fluid is directed to the spray arm 10 for spray cleaning, and when the preset end conditions are met, the sterilization gas generation module 4 is turned off.

[0155] In this embodiment, the cleaning device can be configured with multiple preset modes, including a first mode and a second mode. The first mode is a mode for cleaning with dissolved gas to form sterilizing water, used to sterilize the food in the inner liner 1; this is referred to as the water-washing and sterilization mode. The second mode is a mode for circulating and sterilizing the inner liner 1 and the items being cleaned within it using sterilizing gas; this is referred to as the gas sterilization mode. Of course, the preset modes can also include a third mode, which can be used for cleaning, drying, and storing tableware and / or kitchen utensils in the inner liner 1.

[0156] When the cleaning device is turned on, the user can select the corresponding preset mode according to their own usage needs. Alternatively, the cleaning device can also automatically trigger the corresponding preset mode through self-learning or other methods. In this application, no single limitation is made.

[0157] When executing step S12, it indicates that the currently triggered preset mode is the first mode. After starting the first mode, the first drive unit 51 can be started, the circulating dissolved gas channel can be connected, the sterilization gas generation module 4 can be started, the circulating dissolved gas can be circulated, and the concentration of sterilization substances in the circulating dissolved gas channel can be increased.

[0158] In one embodiment, the cleaning device may further include a second drive unit 52, which is used to provide driving force for the fluid flowing into the sterilizing gas generating module 4 and flowing out of the sterilizing gas generating module 4. The control method further includes activating the second drive unit 52 during circulating dissolved gas.

[0159] Regarding the cleaning device equipped with the second drive unit 52, during the circulation and dissolution of gas, the second drive unit 52 can be started at the same time as the first drive unit 51 is started, thereby improving the efficiency of circulation and dissolution of gas. Specifically, the technical effect of starting the second drive unit 52 at the same time can be referred to the detailed description of the above-mentioned cleaning device implementation method, which will not be repeated here.

[0160] Furthermore, at least one of the first drive unit 51 and the second drive unit 52 can be of adjustable operating parameters. For example, when the first drive unit 51 is a washing pump and the second drive unit 52 is an air pump, the speeds of the washing pump and the air pump can be adjusted. In practical use, the speeds of the washing pump and / or the air pump can be adjusted according to the changes in the concentration of the bactericidal substance during the circulating gas dissolution process, the different circulating gas dissolution times set by the user, etc., thereby ensuring the performance of the cleaning device while meeting the user's personalized usage needs.

[0161] In one embodiment, step S14 can be performed: when the preset termination condition is met, the sterilization gas generation module 4 is turned off, and the dissolved fluid is guided to the spray arm 10 for spray cleaning.

[0162] After the preset termination conditions are met, the dissolved fluid can be guided to the spray arm 10 for spray cleaning. Specifically, along the fluid flow direction, downstream of the first drive unit 51, a water distribution valve 71 is also provided on the second flow channel 62, and a liquid supply channel 63 is provided between the water distribution valve 71 and the spray arm 10.

[0163] When circulating dissolved air and guiding the dissolved air fluid to the spray arm 10 for spray cleaning, the water distribution valve 71 can simultaneously connect the water cup 2 with the second flow channel 62 and the liquid supply flow channel 63, so as to realize simultaneous dissolved air and spraying.

[0164] Alternatively, during the circulating gas dissolution process, the water distribution valve 71 can connect the water cup 2 to the second flow channel 62, ensuring that the liquid supply channel 63 is cut off during gas dissolution to avoid fluid diversion and ensure gas dissolution efficiency. When the dissolved fluid is guided to the spray arm 10 for spray cleaning, the water distribution valve 71 connects the water cup 2 to both the second flow channel 62 and the liquid supply channel 63 simultaneously, opening the liquid supply channel 63 during cleaning to achieve spray sterilization and cleaning.

[0165] Alternatively, during the circulating gas dissolution process, the water distribution valve 71 connects the water cup 2 to the second flow channel 62. When the dissolved fluid is guided to the spray arm 10 for spray cleaning, the water distribution valve 71 connects the water cup 2 to the liquid supply channel 63, ensuring that only the second flow channel 62 is open during gas dissolution, while the liquid supply channel 63 is cut off to avoid fluid diversion and ensure gas dissolution efficiency. During cleaning, only the liquid supply channel 63 is open, and the sterilizing cleaning liquid is completely guided to the spray arm 10 to ensure the liquid supply pressure.

[0166] The three different connection methods of the aforementioned water distribution valve 71 can vary depending on the hardware structure of the cleaning device and the operating parameters required to match the current cleaning device. For example, when the liquid supply pressure is high during cleaning, taking an inner tank 1 that includes multiple layers of baskets, with each basket corresponding to a spray arm 10, and each basket contains items to be cleaned, there may be a need for multiple spray arms 10 to work simultaneously. In this case, the liquid supply pressure requirement is high. In this situation, only the liquid supply channel 63 can be opened during cleaning, and the sterilizing cleaning liquid can be completely directed to the spray arm 10 to ensure the liquid supply pressure.

[0167] The preset termination condition includes any one or a combination of the following: the circulation time of the circulating dissolved gas reaches a preset time or the concentration of the bactericidal substance in the fluid reaches a predetermined concentration.

[0168] Specifically, taking the sterilizing gas generating module 4 as an example, which includes an electrolysis module capable of electrolyzing air to generate ozone, the sterilizing substance is ozone, and the predetermined concentration is above 0.05 PPM; preferably, the predetermined concentration can be above 0.1 ppm; more preferably, the predetermined concentration can be above 0.15 ppm. By setting the above-mentioned preset termination conditions, it can be ensured that a sterilizing cleaning solution with a qualified concentration can be prepared each time the gas is dissolved, thereby reliably ensuring the sterilization effect of the cleaning device.

[0169] In one embodiment, the control method may further include: determining the real-time water volume contained in the cleaning device, and when the real-time water volume does not meet the predetermined water volume, adding water to the dissolved air chamber 3 and / or the water cup 2.

[0170] In this embodiment, before performing step S12, the method may further include: determining the real-time water volume contained in the cleaning device. Specifically, the liquid level in the dissolved air chamber 3 can be determined. When the liquid level in the dissolved air chamber 3 reaches a predetermined height, i.e., a liquid seal layer 30 of a predetermined height can be formed, it indicates that the current real-time water volume meets the predetermined water volume requirement, and there is no need to add water to the cleaning device at this time. If the liquid level in the dissolved air chamber 3 is lower than the predetermined height, water can be added to the cleaning device until the liquid level in the dissolved air chamber 3 reaches the predetermined height.

[0171] Specifically, replenishing water to the cleaning device can be done by directly replenishing water to the dissolved air chamber 3, or by replenishing water to the water cup 2 connected to the dissolved air chamber 3, and then activating the first drive unit 51 to drive the water in the water cup 2 into the dissolved air chamber 3. Specifically, replenishing water to the dissolved air chamber 3 and / or the water cup 2 can include: replenishing water to the dissolved air chamber 3 until the replenishment time reaches a predetermined time or the replenishment volume reaches a predetermined volume, so that a liquid seal layer 30 with a predetermined height is formed in the dissolved air chamber 3; or, replenishing water to the water cup 2 until the replenishment time reaches a predetermined time or the replenishment volume reaches a predetermined volume, and after replenishment is completed, activating the first drive unit 51 to supply water from the water cup 2 to the dissolved air chamber 3, so that a liquid seal layer 30 with a predetermined height is formed in the dissolved air chamber 3.

[0172] The dissolved air chamber 3 may be equipped with a level gauge, which may be electrically connected to the controller (wired or wireless). When the level gauge detects that the liquid level in the dissolved air chamber 3 has reached a predetermined height, the controller may send a control signal to stop water replenishment.

[0173] Alternatively, a preset water supply duration can be stored in the controller. Since the water inflow is constant, the width and thickness of the dissolved air chamber 3 are known. When the water inflow reaches the preset water supply duration, the amount of water replenished in the dissolved air chamber 3 is also a certain capacity. Therefore, it is possible to determine whether water replenishment has been completed in the dissolved air chamber 3 based on the water replenishment time.

[0174] Furthermore, in this embodiment, it is not ruled out that water may be added to the dissolved air chamber 3 manually. For example, a scale line may be provided on the side wall of the dissolved air chamber 3, allowing the user to add water to the dissolved air chamber 3 before use.

[0175] In one embodiment, the first drive unit integrates a heating module and / or a heating module is disposed in the circulating solvent flow channel. After the spray cleaning is completed, the control method further includes: Step S18: Start the first drive unit 51 and start the heating module to circulate and heat the sterilized fluid after cleaning; Step S20: After the preset cycle heating stop condition is met, turn off the first drive unit 51 and the heating module.

[0176] In this embodiment, after spray cleaning, the first drive unit 51 is still activated to allow the residual cleaning liquid to circulate in the liquid path. At the same time, the heating module is activated to heat the fluid to the ozone decomposition temperature, so that the ozone dissolved in the sterilizing cleaning liquid is quickly decomposed into non-toxic oxygen, and ozone residue in the liquid path (dissolved gas chamber 3, flow channel, water cup 2) is removed in a targeted manner.

[0177] In one embodiment, the first drive unit 51 integrates a heating module and / or the first flow channel 61 and / or the second flow channel 62 are provided with heating modules; the cleaning device further includes a heating element 92 and a fan 91; after the first drive unit 51 completes spray cleaning, the control method further includes: The first drive unit 51, the heating module, the heating element 92, and the fan 91 are started to perform cyclic heating; After the preset cycle heating stop condition is met, the first drive unit 51 and the heating module are turned off, and the heating element 92 and the fan 91 are also turned off.

[0178] In this embodiment, the main difference from the above embodiment is that the heating element 92 and the fan 91 are started at the same time as the first drive unit 51 and the heating module are started. When in use, a liquid circulation and a gas circulation are formed, which can efficiently decompose the gaseous ozone in the cleaning device and the ozone remaining in the cleaning liquid simultaneously.

[0179] The preset circulating heating stop condition includes any one of the following: the circulating heating time reaches the preset heating duration; the concentration of bactericidal substance in the circulating fluid in the circulating dissolved gas channel decreases to below the predetermined safe concentration.

[0180] The cleaning device may include a sensor for detecting the concentration of a bactericidal substance. For example, when the bactericidal substance is ozone, the cleaning device may include a sensor for detecting the ozone concentration. This sensor may be electrically connected to a controller. When the controller determines, based on the concentration detected by the sensor, that the concentration of the bactericidal substance in the circulating fluid in the circulating dissolved gas channel has decreased to below a predetermined safe concentration, it indicates that the removal of residual bactericidal substance (ozone) has been completed.

[0181] In addition, the controller can also store a predetermined heating time. This predetermined heating time can be pre-stored in the controller after being verified before leaving the factory. When the cycle heating time reaches the predetermined heating time, it can be ensured that the concentration of bactericidal substances in the circulating fluid in the circulating dissolved gas channel is reduced to below the predetermined safe concentration.

[0182] In one embodiment, the water cup 2 is provided with a drain outlet, the drain outlet is connected to a drain pipe 76, and a drain pump 75 is provided on the drain pipe 76; the control method further includes: Step S22: After the circulating heating is completed, turn on the drain pump 75 to drain the fluid in the cleaning device.

[0183] In this embodiment, after the above-mentioned circulating heating operation is completed, the drain pump 75 can be turned on to discharge the fluid in the cleaning device through the water cup 2 and the drain pipe 76.

[0184] In one embodiment, the cleaning device includes: a fan 91; the control method includes: Step S13: When the preset mode is the second mode, start the fan 91 and the sterilization gas generation module 4 to perform cyclic disinfection.

[0185] In this embodiment, when the second mode is triggered, the fan 91 and the sterilizing gas generating module 4 can be activated to perform gas sterilization. When the fan 91 and the sterilizing gas generating module 4 are activated to perform gas circulation sterilization, the sterilizing gas generated by the sterilizing gas generating module 4 can pass through the dissolved gas chamber 3, the first flow channel 61, the water cup 2, the inner liner 1, and return to the sterilizing gas generating module 4.

[0186] Furthermore, the cleaning device may also include: a heating element 92; the control method further includes: Step S15: Start the fan 91 and the heating element 92 to perform cyclic heating.

[0187] In this embodiment, after the gas circulation disinfection is completed, the fan 91 can be kept in operation, and the heating element 92 can be activated for circulating heating, thereby decomposing any residual disinfectant substances (such as ozone) that may have remained at the locations through which the disinfectant gas flowed. Furthermore, the process of decomposing the ozone is equivalent to drying the interior of the cleaning device. Subsequently, if the cleaned items are stored in this cleaning device, aseptic drying and preservation can be achieved.

[0188] The criteria for determining the end of the cyclic heating can be found in the detailed description of the above-described embodiments, and will not be repeated here.

[0189] Please refer to the following: Figure 9 and Figure 10 In one embodiment, the sterilizing gas generating module 4 is provided with an air inlet 41 and a sterilizing gas outlet 42. The air inlet 41 is connected to the inner liner 1. A first air passage 65 is provided between the sterilizing gas outlet 42 and the air inlet of the dissolved gas chamber 3. A second air passage 66 is provided between the sterilizing gas outlet 42 and the inner liner 1. The cleaning device also includes an air passage control valve, which is used to control the opening and closing of the first air passage 65 and the second air passage 66. When the fan 91 and the sterilizing gas generating module 4 are started, the second air passage 66 is simultaneously connected through the air passage control valve to perform gas circulation sterilization. During gas circulation sterilization, the sterilizing gas generated by the sterilizing gas generating module 4 can return to the sterilizing gas generating module 4 through the second air passage 66 and the inner liner 1.

[0190] In this embodiment, the structural components of the cleaning device, such as the first air passage 65, the second air passage 66, and the air passage control valve, can be referred to the specific description of the third type of embodiment of the cleaning device described above, and will not be repeated here.

[0191] In the specific use of the cleaning device under this type of implementation, if it is necessary to perform cyclic disinfection of sterilizing gas, the second gas path 66 and the sterilizing gas generating module 4 can be opened without removing the liquid seal layer 30 of the dissolved gas chamber 3. The sterilizing gas generating module 4 can be equipped with a second driving unit 52. At this time, the second driving unit 52 is also in the start state. The sterilizing gas generated by the sterilizing gas generating module 4 can return to the sterilizing gas generating module 4 through the second gas path 66 and the inner liner 1, thereby achieving disinfection of the inner liner 1 and the items to be cleaned in the inner liner 1.

[0192] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0193] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from the others. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A cleaning device, characterized in that, The cleaning device includes: The inner liner is provided with at least one spray arm. A water cup that provides cleaning fluid to the spray arm; The dissolved air chamber has a volume smaller than that of the inner liner. The dissolved air chamber is provided with a liquid inlet for supplying fluid into the dissolved air chamber. A sterilizing gas generating module, which is used to supply sterilizing gas to the dissolved gas chamber; The first flow channel has one end connected to the dissolved air chamber and the other end connected to the water cup; The second flow channel has one end connected to the water cup and the other end connected to the liquid input section; The first driving unit is disposed in the second flow channel. After the sterilization gas generation module and the first driving unit are started, the dissolved gas chamber, the first flow channel, the water cup, the second flow channel and the liquid input part can cooperate to form a circulating dissolved gas flow channel.

2. The cleaning device as described in claim 1, characterized in that, The sterilizing gas generating module is integrated with the dissolved gas chamber; or the sterilizing gas generating module is disposed in the dissolved gas chamber, and an isolation component is provided between the sterilizing gas generating module and the liquid input section.

3. The cleaning device as described in claim 1, characterized in that, The cleaning device further includes a second drive unit, which provides driving force for the fluid flowing into and out of the sterilizing gas generating module.

4. The cleaning device as described in claim 1, characterized in that, The second flow channel is also equipped with a water distribution valve, and a liquid supply flow channel is provided between the water distribution valve and the spray arm.

5. The cleaning apparatus as described in claim 4, characterized in that, The first drive unit is located on the second flow channel between the water cup and the water distribution valve, and the first drive unit can pressurize the liquid supply channel.

6. The cleaning apparatus as described in claim 5, characterized in that, The water distribution valve includes at least one of the following operating states or a combination thereof: first operating state, second operating state, and third operating state; In the first working state, the water distribution valve is only connected to the second flow channel; In the second working state, the water distribution valve is simultaneously connected to the second flow channel and the liquid supply flow channel; In the third operating state, the water distribution valve only connects the liquid supply channel.

7. The cleaning apparatus as described in claim 1, characterized in that, The cleaning device includes a dissolved air chamber, inside which a dissolved air cavity is formed. The dissolved air chamber is independently disposed on the outer side wall of the inner liner, or the dissolved air chamber is integrated into the outer side wall of the inner liner, and the dissolved air cavity is not directly connected to the inner liner.

8. The cleaning apparatus as described in claim 7, characterized in that, The dissolved gas box is a hollow box in the shape of a plate, and the box has relative height, width and thickness dimensions; The liquid input section includes an infusion pipe that communicates with the housing, and multiple nozzles are provided on the infusion pipe at intervals in the height direction and / or width direction.

9. The cleaning apparatus as described in claim 1, characterized in that, The bottom of the dissolved gas chamber is provided with a stop mechanism, which is used to form a liquid seal layer of a predetermined height at the bottom of the dissolved gas chamber. The air inlet of the dissolved gas chamber is located above the liquid seal layer, and the liquid outlet of the liquid input part is at least partially located above the liquid seal layer.

10. The cleaning apparatus as described in claim 9, characterized in that, The sterilization gas generating module is provided with an air inlet and a sterilization gas outlet. The air inlet is connected to the inner liner, and the sterilization gas outlet is connected to the air inlet of the dissolved gas chamber.

11. The cleaning apparatus as described in claim 10, characterized in that, The stop mechanism forms a return liquid cavity with the side wall of the dissolved gas cavity, and one end of the first flow channel is connected to the return liquid cavity; the stop mechanism includes a first communication port provided near the bottom wall of the dissolved gas cavity and a stop part located downstream of the first communication port, the stop part extends upward from the bottom wall, and the height of the stop part is higher than or equal to the height of the liquid seal layer.

12. The cleaning apparatus as described in claim 11, characterized in that, The top of the liquid return chamber is provided with a second communication port, and the liquid return chamber is connected to the space above the liquid seal layer of the dissolved gas chamber through the second communication port.

13. The cleaning apparatus as described in claim 12, characterized in that, The inner liner is provided with a first air inlet, a first air outlet, and a second air outlet; the cleaning device further includes a fan and a bypass duct, the bypass duct being connected between the first air inlet and the first air outlet, and the second air outlet being connected to the air inlet; the bypass duct, the inner liner, the sterilization gas generating module, the dissolved gas chamber, the second connecting port, the first flow channel, and the water cup are sequentially connected; When the fan and the sterilizing gas generating module are started, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the dissolved gas chamber, the second connecting port, the first flow channel, the water cup, the inner liner, the bypass air duct, and the inner liner.

14. The cleaning apparatus as described in claim 10, characterized in that, The bottom of the dissolved gas chamber is connected to a drain pipe, and a drain valve is installed on the drain pipe. When the drain valve is opened, it is used to discharge the liquid seal layer in the dissolved gas chamber.

15. The cleaning apparatus as described in claim 14, characterized in that, The inner liner is provided with a first air inlet, a first air outlet, and a second air outlet; the cleaning device further includes a fan and a bypass duct, the bypass duct being connected between the first air inlet and the first air outlet, and the second air outlet being connected to the air inlet; the bypass duct, the inner liner, the sterilization gas generating module, the dissolved gas chamber, the first flow channel, and the water cup are sequentially connected. After the liquid seal layer in the dissolved gas chamber is discharged through the drain pipe, when the fan and the sterilizing gas generating module are started, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the dissolved gas chamber, the first flow channel, the water cup, the inner liner, the bypass air duct, and the inner liner.

16. The cleaning apparatus as described in claim 1, characterized in that, The sterilizing gas generating module is provided with an air inlet and a sterilizing gas outlet. The air inlet is connected to the inner liner. A first gas path is provided between the sterilizing gas outlet and the air inlet of the dissolved gas chamber. A second gas path is provided between the sterilizing gas outlet and the inner liner. The cleaning device also includes a gas path control valve, which is used to control the opening and closing of the first gas path and the second gas path.

17. The cleaning apparatus as described in claim 16, characterized in that, The inner liner is provided with a first air inlet, a first air outlet and a second air outlet; the cleaning device further includes: a fan and a bypass duct, the bypass duct is connected between the first air inlet and the first air outlet, the second air outlet is connected to the air inlet, and the bypass duct, the inner liner, the sterilization gas generating module and the first air path can be connected in sequence. When the first gas path is connected and the fan and the sterilizing gas generating module are started, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the bypass air duct and the inner liner; Alternatively, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the inner liner, the bypass duct, and the inner liner.

18. The cleaning apparatus as described in any one of claims 13, 15, or 17, characterized in that, The bypass duct is also equipped with a heating element.

19. The cleaning apparatus as described in claim 1, characterized in that, The first drive unit integrates a heating module and / or the circulating dissolved gas channel is provided with a heating module.

20. The cleaning apparatus as described in claim 1, characterized in that, The volume of the dissolved air chamber is less than 5 liters.

21. The cleaning apparatus as described in claim 1, characterized in that, The sterilization gas generating module includes an electrolysis module capable of electrolyzing air to generate ozone.

22. The cleaning apparatus as described in claim 1, characterized in that, The sterilizing gas generating module is located inside or outside the dissolved gas chamber; The sterilization gas generating module is provided with an air inlet and a sterilization gas outlet. The air inlet is connected to the inner liner, and the sterilization gas outlet is connected to the dissolved gas chamber. The cleaning device also includes a fan. When the fan is started, the sterilization gas generating module is activated, and the air in the inner liner can flow through the sterilization gas generating module to form a sterilization airflow. The sterilization airflow returns to the inner liner through the dissolved gas chamber and the water cup, forming a gas sterilization circuit.

23. The cleaning apparatus as described in claim 22, characterized in that, The cleaning device further includes a heating element, which is disposed in the gas sterilization circuit and is used to heat the fluid in the gas sterilization circuit.

24. The cleaning apparatus as described in claim 23, characterized in that, The inner liner has a first sidewall and a second sidewall. The sterilization gas generating module is disposed on the first sidewall, and the second sidewall is provided with a bypass air duct. The second sidewall is provided with a first air inlet and a first air outlet, and the first sidewall is provided with a second air outlet. The bypass air duct connects the first air inlet and the first air outlet, and the second air outlet is connected to the air inlet. The heating element and the fan are disposed in the bypass air duct.

25. A cleaning device, characterized in that, The cleaning device includes: The inner liner is provided with at least one spray arm. A water cup that provides cleaning fluid to the spray arm; The dissolved air chamber has a volume smaller than that of the inner liner. The dissolved air chamber is provided with a liquid inlet for supplying fluid into the dissolved air chamber. A sterilizing gas generating module, which is used to supply sterilizing gas to the dissolved gas chamber; The first flow channel has one end connected to the dissolved air chamber and the other end connected to the water cup; The second flow channel has one end connected to the water cup and the other end connected to the liquid inlet. A bypass channel is provided, which is connected in parallel with the water cup. One end of the bypass channel is connected to the first channel through a first control valve, and the other end of the bypass channel is connected to the second channel through a second control valve. The first driving unit is disposed in the second flow channel. After the sterilization gas generation module and the first driving unit are started, the dissolved gas chamber, the first flow channel, the bypass flow channel, the second flow channel and the liquid input section can cooperate to form a circulating dissolved gas flow channel.

26. The cleaning apparatus as described in claim 25, characterized in that, Downstream of the first drive unit, along the fluid flow direction, a water distribution valve is also provided on the second flow channel. A liquid supply channel is provided between the water distribution valve and the spray arm. The first drive unit can pressurize the liquid supply channel. When the first control valve and the second control valve close the bypass channel, the water in the water cup can be supplied to the spray arm through the liquid supply channel.

27. A control method for a cleaning apparatus based on any one of claims 1 to 26, characterized in that, The control method includes: The preset mode of the cleaning device is obtained, and the preset mode includes at least a first mode and a second mode; When the preset mode is the first mode, the first drive unit is started, the circulating dissolved gas channel is connected, and the sterilization gas generation module is started to perform circulating dissolved gas. When the preset termination conditions are met, the sterilization gas generation module is turned off, and the dissolved fluid is guided to the spray arm for spray cleaning. Alternatively, before the preset termination condition is met, the dissolved fluid is directed to the spray arm for spray cleaning, and the sterilization gas generation module is turned off when the preset termination condition is met.

28. The control method of the cleaning apparatus as described in claim 27, characterized in that, The cleaning device further includes a second drive unit, which is used to provide driving force for the fluid flowing into and out of the sterilizing gas generating module. The control method further includes activating the second drive unit during circulating dissolved gas.

29. The control method of the cleaning apparatus as described in claim 27, characterized in that, The preset termination condition includes any one or a combination of the following: the circulation time of the circulating dissolved gas reaches a preset time or the concentration of the bactericidal substance in the fluid reaches a predetermined concentration.

30. The control method of the cleaning device as described in claim 29, characterized in that, The sterilizing gas generating module includes an electrolysis module capable of electrolyzing air to generate ozone, wherein the sterilizing substance is ozone, and the predetermined concentration is above 0.05 PPM.

31. The control method of the cleaning device as described in claim 27, characterized in that, Along the fluid flow direction, downstream of the first drive unit, a water distribution valve is also provided on the second flow channel, and a liquid supply flow channel is provided between the water distribution valve and the spray arm; During the circulation and dissolution of gas and the guidance of the dissolved gas fluid to the spray arm for spray cleaning, the water distribution valve can simultaneously connect the water cup to the second flow channel and the liquid supply channel. Alternatively, during the circulation of dissolved air, the water distribution valve can connect the water cup to the second flow channel. When the dissolved air fluid is guided to the spray arm for spray cleaning, the water distribution valve connects the water cup to the second flow channel and the liquid supply channel simultaneously. Alternatively, during the circulating gas dissolution process, the water distribution valve connects the water cup to the second flow channel; and during the process of guiding the dissolved gas fluid to the spray arm for spray cleaning, the water distribution valve connects the water cup to the liquid supply flow channel.

32. The control method of the cleaning device as described in claim 27, characterized in that, The control method further includes: determining the real-time water volume contained in the cleaning device, and when the real-time water volume does not meet the predetermined water volume, adding water to the dissolved air chamber and / or the water cup.

33. The control method of the cleaning device as described in claim 32, characterized in that, The process of introducing water into the dissolved air chamber and / or the water cup includes: Water is introduced into the dissolved air chamber until the water introduction time reaches a predetermined time or the water introduction volume reaches a predetermined water introduction volume, so that a liquid seal layer with a predetermined height is formed in the dissolved air chamber; Alternatively, water can be added to the cup until the water addition time reaches a predetermined time or the water addition amount reaches a predetermined amount. After the water addition is completed, the first drive unit is activated to supply the water in the cup to the dissolved air chamber, so that a liquid seal layer with a predetermined height is formed in the dissolved air chamber.

34. The control method of the cleaning device as described in claim 27, characterized in that, The first drive unit integrates a heating module and / or a heating module is provided in the circulating solvent flow channel. After the spray cleaning is completed, the control method further includes: The first drive unit is started and the heating module is started to circulate and heat the sterilized fluid after cleaning. After the preset cycle heating stop condition is met, the first drive unit and the heating module are turned off.

35. The control method for the cleaning apparatus as described in claim 27, characterized in that, The first drive unit integrates a heating module and / or the first flow channel and / or the second flow channel are provided with a heating module; the cleaning device also includes a heating element and a fan. After the first drive unit completes the spray cleaning, the control method further includes: The first drive unit, the heating module, the heating element, and the fan are started to perform cyclic heating; After the preset cycle heating stop condition is met, the first drive unit and the heating module are turned off, and the heating element and the fan are also turned off.

36. The control method for the cleaning apparatus as described in claim 34 or 35, characterized in that, The preset cycle heating stop condition includes any one of the following: The cyclic heating time reaches the preset heating duration; The concentration of bactericidal substances in the circulating fluid in the circulating dissolved air channel is reduced to below a predetermined safe concentration.

37. The control method for the cleaning apparatus as described in claim 34 or 35, characterized in that, The water cup is provided with a drain outlet, the drain outlet is connected to a drain pipe, and a drain pump is provided on the drain pipe; the control method further includes: After the circulating heating is completed, the drain pump is turned on to discharge the fluid from the cleaning device.

38. The control method of the cleaning device as described in claim 27, characterized in that, The cleaning device includes: a fan; the control method includes: When the preset mode is the second mode, the fan and the sterilization gas generation module are started to perform cyclic disinfection.

39. The control method of the cleaning device as described in claim 38, characterized in that, When the fan and the sterilizing gas generating module are started for cyclic disinfection, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the dissolved gas chamber, the first flow channel, the water cup, the inner liner.

40. The control method of the cleaning device as described in claim 38, characterized in that, The sterilizing gas generating module is provided with an air inlet and a sterilizing gas outlet. The air inlet is connected to the inner liner. A first gas path is provided between the sterilizing gas outlet and the air inlet of the dissolved gas chamber. A second gas path is provided between the sterilizing gas outlet and the inner liner. The cleaning device also includes a gas path control valve, which is used to control the opening and closing of the first gas path and the second gas path. When the fan and the sterilizing gas generating module are started, the second gas path is simultaneously connected through the gas path control valve to perform cyclic sterilization. During cyclic sterilization, the sterilizing gas generated by the sterilizing gas generating module can return to the sterilizing gas generating module through the second gas path and the inner liner.

41. The control method of the cleaning device as described in claim 38, characterized in that, The cleaning device further includes a heating element; the control method further includes: Start the fan and the heating element to perform circulating heating.

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