Disinfection tanks, dishwashers and their control methods

Abstract

This invention relates to the field of household appliance technology, and discloses a disinfection water tank, a dishwasher, and a control method thereof. The disinfection water tank includes: a tank body with an opening at the top; a tank cover detachably installed at the opening; and an electrolysis module detachably suspended from the tank cover. The electrolysis module is connected to a driving power supply and can discharge under the drive of the power supply to generate active substances, which dissolve in the water in the tank body to form activated water. By detachably suspending the electrolysis module from the tank cover, the electrolysis module and the tank cover can be disassembled and reassembled as a whole. When maintenance or replacement of the electrolysis module is desired, the tank cover can be opened directly, greatly facilitating the subsequent replacement and maintenance of the electrolysis module.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to disinfection water tanks, dishwashers, and their control methods. Background Technology

[0002] With technological advancements and improved living standards, dishwashers, as kitchen appliances that automatically clean dishes and other tableware, are increasingly entering more and more households, bringing convenience to people's lives. Existing dishwashers typically have functions such as washing, drying, storing, and sterilizing; after users place dishes and other tableware inside, the dishwasher can automatically complete a series of cleaning tasks according to the user's needs, effectively reducing the user's workload.

[0003] Currently, most industry solutions employ high-temperature or ultraviolet (UV) disinfection. However, due to the temperature resistance limitations of dishwasher parts and tableware, the required disinfection temperatures cannot be reached. UV disinfection suffers from obstruction caused by stacked tableware and cannot disinfect residual water in the dishwasher's internal piping. Therefore, those skilled in the art have developed an electrolysis module within the disinfection tank to prepare activated water for comprehensive disinfection of tableware, the internal cavity, and piping. However, the existing electrolysis module's installation position within the tank is unreasonable, leading to scale buildup on its surface, reduced electrolysis efficiency, an unstable tank center of gravity causing it to tip over, and significant inconvenience in disassembly and maintenance. Summary of the Invention

[0004] In view of this, the present invention provides a disinfection water tank, a dishwasher and a control method thereof, to solve the problems of unreasonable installation position of the electrolysis module in the prior art disinfection water tank and inconvenient disassembly and maintenance.

[0005] In a first aspect, the present invention provides a disinfection water tank, comprising: The water tank body has an opening at the top; The water tank cover is detachably installed at the opening; The electrolysis module is detachably suspended on the top cover of the water tank. The electrolysis module is connected to the driving power supply. Under the drive of the driving power supply, the electrolysis module can discharge to generate active substances, which dissolve in the water in the water tank to form active water. Beneficial effects: The water tank cover is detachably connected to the water tank body, facilitating its installation and removal. By detachably suspending the electrolysis module on the water tank cover, the module and cover can be disassembled as a single unit. For maintenance or replacement of the electrolysis module, simply open the cover. This greatly simplifies future replacement and maintenance. Compared to traditional bottom-fixed or side-fixed designs, this suspended design avoids the problems associated with bottom-fixed modules being constantly submerged, which can lead to damage, scale buildup, and reduced electrolysis efficiency. It also prevents the tank from becoming unstable and tipping over due to the module being mounted on the side wall. Furthermore, the connection design between the electrolysis module and the drive power supply facilitates subsequent polarity reversal and removal of scale from the cathode surface of the electrolysis module.

[0006] In one alternative embodiment, the water tank cover has a downwardly recessed mounting profile with a first mounting hole inside, and the electrolysis module is detachably connected to the first mounting hole.

[0007] Beneficial effects: By setting a downwardly recessed mounting profile on the water tank cover and opening the first mounting hole in the mounting profile, the structural strength of the water tank cover at the opening is increased on the one hand, preventing deformation caused by the suspension of the electrolysis module. On the other hand, the recessed design can accommodate the connection structure of the electrolysis module, such as nuts and wire connectors, making the overall appearance of the water tank cover flatter and more aesthetically pleasing. It also avoids the problem of the connection structure protruding and easily interfering with other components.

[0008] In one alternative embodiment, a bolt post is fixedly provided on the electrolysis module, the bolt post extending into the first mounting hole and being locked and fixed by the first locking nut; The bolt post has a protruding section that extends into the mounting mold, a first locking nut is threaded onto the protruding section, and the recess depth of the mounting mold is greater than the height of the protruding section, and the first locking nut is accommodated in the mounting mold. Beneficial effects: The electrolysis module is fixed by bolt posts and the first locking nut, which is not only convenient to disassemble and assemble, but also secure and stable. Furthermore, by adopting a design in which the depth of the recess in the mounting mold is greater than the height of the protruding section, it is ensured that the first locking nut can be completely accommodated in the molding groove. This not only provides protection against impacts, but also avoids the risk of short circuits that may be caused by exposed nuts, thus improving electrical safety.

[0009] In one alternative implementation, the electrolysis module includes: The electrode structure is fixed at the top of the electrode structure with bolts. The connecting wire and the bolt post are configured as conductive posts with external threads. The connecting wire is connected between the bolt post and the drive power supply to realize the electrical connection between the electrode structure and the drive power supply.

[0010] Beneficial effects: By designing the bolt post directly as a conductive post with external threads, the bolt post serves as a dual carrier for both conduction and fixation, achieving multiple uses in one device. This eliminates the need for additional wire soldering or complex adapter terminals, simplifies the assembly process, reduces contact resistance, and minimizes heat loss. Furthermore, the connecting wire directly connects the bolt post to the drive power supply, ensuring stable signal transmission and facilitating quick assembly and disassembly by tightening the nut.

[0011] In one optional embodiment, the disinfection tank further includes: Waterproof cover, which is detachably installed on the top cover of the water tank, is used for sealing and molding.

[0012] Beneficial effects: By adding a waterproof cover to seal the installation molding, it is possible to effectively prevent external water sources from coming into contact with the live bolts and the connection points between the bolts and the connecting wires, which greatly improves the electrical safety and long-term reliability of the product in a humid kitchen environment.

[0013] In one optional embodiment, a first annular rib is fixedly provided on the top cover of the water tank, and the first annular rib is arranged around the outer periphery of the mounting mold. The bottom wall of the waterproof cover is provided with a second annular rib corresponding to the first annular rib, and the second annular rib is snapped and fastened to the outside of the first annular rib.

[0014] Beneficial effects: The design of the first and second annular ribs enables the rapid installation and positioning of the waterproof cover and the water tank cover, and also serves to block water, preventing external water from flowing into the installation molded part through the assembly gap between the waterproof cover and the water tank cover.

[0015] In one alternative implementation, the water tank cover is screwed to the water tank body. Beneficial effects: The top cover is connected to the water tank body with screws instead of clips, which ensures the connection strength between the top cover and the water tank body, can withstand the weight of the electrolysis module and the liquid level detection module, and maintains good sealing performance during long-term use to prevent water leakage.

[0016] In one optional embodiment, the disinfection tank further includes: The liquid level detection module is detachably suspended and installed on the top cover of the water tank. The liquid level detection module is used to detect the liquid level information inside the water tank. Beneficial effects: By integrating a liquid level detection module into the disinfection tank, real-time monitoring of the liquid level within the tank is achieved, effectively preventing water overflow and dry burning risks, and ensuring that the electrolysis process always proceeds within a safe water level range. Furthermore, by detachably suspending the liquid level detection module on the tank cover, the module and cover can be disassembled as a single unit. When maintenance or replacement of the module is needed, simply open the tank cover, greatly simplifying future maintenance and replacement. Moreover, installing the module on the tank cover provides greater stability compared to installing it on the side wall, making the tank less prone to tipping. Compared to installing it on the bottom wall, this avoids the problems of the module being easily damaged or affected by scale buildup due to prolonged immersion in water.

[0017] In one optional embodiment, the water tank cover is provided with a second mounting hole, which is a countersunk hole; The top of the liquid level detection module is provided with a threaded connection section, and the threaded connection section is provided with a positioning nut and a second sealing ring from bottom to top; The threaded connection section extends into the second mounting hole and is locked in place by the second locking nut, so as to press the second sealing ring against the bottom circumferential edge of the second mounting hole.

[0018] Beneficial effects: The countersunk design of the second mounting hole allows the second locking nut and threaded connection section to be accommodated, avoiding the problem of the second locking nut and threaded connection section protruding and interfering with other components, thus affecting the overall aesthetics. Furthermore, the cooperation of the positioning nut, the second sealing ring, and the second locking nut not only achieves the suspended vertical installation of the liquid level detection module, but also forms a reliable waterproof seal through the tight pressure between the second sealing ring and the bottom of the countersunk hole, preventing water from the water tank from seeping out along the installation gap of the liquid level detection module.

[0019] Secondly, the present invention also provides a dishwasher, including an inner tank and a disinfection water tank according to any of the above embodiments, the disinfection water tank being used to deliver activated water to the inner tank.

[0020] Thirdly, the present invention also provides a control method applicable to the above-mentioned dishwasher, the control method comprising: During the active water preparation stage, the driving power supply is controlled to supply power to the electrolysis module with the initial polarity to continuously prepare active water; During the electrode descaling stage, the output polarity of the control drive power supply is reversed, so that the original positive electrode of the electrolysis module becomes the negative electrode and the original negative electrode becomes the positive electrode, and the reverse power supply is maintained for the set descaling time to remove the scale accumulated on the surface of the original negative electrode.

[0021] Beneficial effects: By controlling the polarity of the drive power supply to turn the original negative electrode into the positive electrode, the scale attached to the original negative electrode is dissolved and peeled off using electrochemical principles. This effectively solves the problem of calcium and magnesium ions easily accumulating and forming scale on the negative electrode during electrolysis. Compared with adding chemical descaling agents, the above descaling method is simpler and more efficient, ensuring the long-term operating efficiency of the electrolysis module, extending the service life of the electrodes, and ensuring the continuity of the disinfection effect.

[0022] In one alternative implementation, the polarity reversal operation of the drive power supply is performed periodically, and the period is determined based on the total runtime of the electrolysis module or the cumulative number of times the dishwasher is used.

[0023] Beneficial effects: The descaling operation is set to a periodic action based on the total running time or the cumulative number of uses, which makes the timing of descaling more reasonable. This avoids the problem of frequent descaling occupying user time and wasting resources, and also prevents excessive scale buildup that is difficult to remove.

[0024] In one optional implementation, during the active water preparation stage, the driving power supply is controlled to supply power to the electrolysis module with an initial polarity to continuously prepare active water, specifically including the following steps: Receive the signal for activated water preparation; The water inlet mechanism is controlled to supply water to the water tank body, while the water level information inside the water tank body is monitored in real time. When the water level inside the tank reaches the set maximum level, stop adding water to the tank. It also controls the drive power supply to supply power to the electrolysis module with the initial polarity to prepare activated water until the electrolysis module reaches the set working time.

[0025] Beneficial effects: Electrolysis is only started after confirming that the water level has reached the maximum level, which fundamentally eliminates the risk of dry burning damage caused by the electrolysis module working in a waterless or low water level state, and improves the safety of product use.

[0026] In one optional implementation, after the activated water preparation stage is completed, the following steps are also performed: The system controls the water pump to draw active water from the main body of the water tank into the inner tank, and monitors the water level information inside the main body of the water tank in real time. When the water level in the tank reaches the set minimum level, the pump is stopped. At the same time, the dishwasher's washing pump is activated, drawing the active water from the inner tub to the dishwasher's spray arm, and then spraying it into the inner tub.

[0027] Beneficial effects: After the activated water is prepared, the water pump delivers the activated water from the tank to the inner tank and monitors the water level in the tank in real time. When the water level in the tank reaches the set minimum level, the water pump stops working, protecting the pump and preventing damage from dry running. This ensures that the high-concentration activated water can be accurately delivered to the inner tank, and the rotating spray arm sprays the tableware, inner cavity, and pipelines for comprehensive disinfection, improving the user experience. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of the disinfection tank in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the water tank body in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the water tank cover in an embodiment of the present invention; Figure 4 This is a schematic diagram of the assembly of the electrolysis module in an embodiment of the present invention; Figure 5 This is an assembly diagram of the liquid level detection module in an embodiment of the present invention; Figure 6 This is a schematic diagram of the electrolysis module in an embodiment of the present invention; Figure 7 This is an exploded view of the electrolysis module in an embodiment of the present invention; Figure 8 This is a control flowchart of the dishwasher in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures: 1. Water tank body; 11. Screw post; 2. Water tank cover; 200. First mounting hole; 201. Second mounting hole; 202. Water inlet; 203. Water outlet; 204. Screw hole; 21. Mounting molding; 22. First annular rib; 221. Cable routing port; 3. Electrolysis module; 30. Bolt post; 31. Connecting wire; 32. First locking nut; 33. Limiting nut; 34. First sealing ring; 35. Positive electrode plate; 36. Negative electrode plate; 37. Positive conductive strip; 38. Negative conductive strip; 39. Insulating block; 4. Waterproof cover; 41. Second annular rib; 5. Liquid level detection module; 51. Second locking nut; 52. Positioning nut; 53. Second sealing ring. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0036] According to an embodiment of the present invention, in one aspect, combined with Figures 1 to 7 As shown, the present invention provides a disinfection water tank, including: a water tank body 1, a water tank cover 2, and an electrolysis module 3. The top of the water tank body 1 is provided with an opening; the water tank cover 2 is detachably installed at the opening; the electrolysis module 3 is detachably suspended and installed on the water tank cover 2. The electrolysis module 3 is connected to a driving power supply. The electrolysis module 3 can discharge under the drive of the driving power supply to generate active substances, which dissolve in the water of the water tank body 1 to form active water. In the above embodiment, the water tank cover 2 is detachably connected to the water tank body 1, facilitating the installation and removal of the water tank cover 2. By detachably suspending the electrolysis module 3 on the water tank cover 2, the electrolysis module 3 and the water tank cover 2 can be disassembled and installed as a whole. When maintenance or replacement of the electrolysis module 3 is desired, the water tank cover 2 can be opened directly, greatly facilitating the replacement and maintenance of the electrolysis module 3 in the future. Compared with the traditional bottom-fixed or side-fixed design, the suspended design of suspending the electrolysis module 3 on the water tank cover 2 not only avoids the problems of the electrolysis module 3 being easily damaged and prone to scale buildup due to long-term immersion in water, which leads to reduced electrolysis efficiency, but also avoids the problem of the water tank being unstable and prone to tipping due to the electrolysis module 3 being installed on the side wall of the water tank. At the same time, the connection design between the electrolysis module 3 and the drive power supply also facilitates subsequent polarity reversal and removal of scale from the cathode surface of the electrolysis module 3.

[0037] Based on the above embodiments, as a further limited implementation method, the disinfection tank is applied to a dishwasher, but is not limited to dishwashers and can also be applied to other household appliances, such as fruit and vegetable washing machines, smart toilets, robot vacuum cleaners, humidifiers, etc.

[0038] Based on the above embodiments, as a further defined implementation, both the water tank body 1 and the water tank cover 2 are plastic parts. The water tank body 1 is a container with an open top and is used to hold activated water. The open side can be used to place the water tank cover 2, which is the cover of the water tank body 1. The water tank cover 2 is provided with a water inlet 202 and a water outlet 203. The water inlet 202 is connected to an external water inlet mechanism for water to enter the water tank body 1, and the water outlet 203 is connected to a water pump.

[0039] Based on the above embodiments, as a further defined implementation, the electrolysis module 3 is vertically suspended on the water tank cover 2. Driven by the power supply, the electrolysis module 3 continuously generates highly active substances near the positive electrode. These highly active substances then organically dissolve in the water, forming activated water with highly effective bactericidal properties. During normal operation, the electrolysis module 3 generates highly active substances at the positive electrode, while the negative electrode accumulates a large number of Mg2+, Ca2+, and other scale ions, easily forming sediment. The power supply can remove the scale on the surface of the negative electrode by reversing the polarity.

[0040] In some embodiments, the water tank cover 2 is provided with a downwardly recessed mounting profile 21, and the mounting profile 21 is provided with a first mounting hole 200, and the electrolysis module 3 is detachably connected to the first mounting hole 200.

[0041] In the above embodiment, by providing a downwardly recessed mounting mold 21 on the water tank cover 2 and opening a first mounting hole 200 in the mounting mold 21, the structural strength of the water tank cover 2 at the opening is increased on the one hand, preventing deformation caused by the suspension of the electrolysis module 3. On the other hand, the recessed design can accommodate the connection structure of the electrolysis module 3, such as nuts and wire connectors, making the overall appearance of the water tank cover more flat and beautiful, while also avoiding the problem of the connection structure protruding and easily interfering with other components.

[0042] Based on the above embodiments, as a further defined implementation, the electrolysis module 3 is fixed in the first mounting hole 200 by bolts, nuts, or snap-fit. Preferably, the electrolysis module 3 is fixed in the first mounting hole 200 by bolts or nuts.

[0043] In some embodiments, a bolt post 30 is fixedly provided on the electrolysis module 3. The bolt post 30 extends into the first mounting hole 200 and is locked and fixed by the first locking nut 32. The bolt post 30 has a protruding section that extends into the mounting mold 21. The first locking nut 32 is threadedly connected to the protruding section, and the recess depth of the mounting mold 21 is greater than the height of the protruding section. The first locking nut 32 is accommodated in the mounting mold 21. In the above embodiment, the electrolysis module 3 is fixed by the bolt post 30 and the first locking nut 32, which is not only convenient to disassemble and assemble, but also secure and stable. Furthermore, by adopting the design that the recessed depth of the mounting mold 21 is greater than the height of the protruding section, it is ensured that the first locking nut 32 can be completely accommodated in the molded groove, which not only achieves anti-collision protection, but also avoids the short circuit risk that may be caused by the exposed nut, thus improving electrical safety.

[0044] Based on the above embodiments, as a further defined implementation method, combined with... Figure 4 , Figure 6 and Figure 7 As shown, a first sealing ring 34 is also provided on the bolt post 30 of the electrolysis module 3. A sealing groove is provided in the first mounting hole 200. The first sealing ring 34 is sleeved on the bolt post 30. When the electrolysis module 3 is fixed to the water tank cover 2, the first sealing ring 34 is pressed against the top circumferential edge of the first mounting hole 200 by the first locking nut 32 to achieve the sealing of the first mounting hole 200.

[0045] In some embodiments, the electrolysis module 3 includes an electrode structure and a connecting wire 31, with a bolt post 30 fixedly disposed on the top of the electrode structure; the bolt post 30 is configured as a conductive post with external threads, and the connecting wire 31 is connected between the bolt post 30 and the driving power supply to realize the electrical connection between the electrode structure and the driving power supply.

[0046] In the above embodiments, by directly designing the bolt post 30 as a conductive post with external threads, the bolt post 30 serves as a dual carrier for both conduction and fixation, achieving multiple uses in one device. This eliminates the need for additional wire soldering or complex adapter terminals, simplifies the assembly process, reduces contact resistance, and minimizes heat loss. Furthermore, the connecting wire 31 directly connects the bolt post 30 to the drive power supply, ensuring stable signal transmission and facilitating quick assembly and disassembly by tightening the nut.

[0047] Based on the above embodiments, as a further defined implementation, a connecting ring is provided at one end of the connecting wire 31 that connects to the bolt post 30. The connecting ring is sleeved on the outer circumference of the bolt post 30 and contacts the bolt post 30 to achieve electrical connection between the connecting wire 31 and the bolt post 30. A limit nut 33 is provided on the bolt post 30, and the connecting ring is clamped and limited between the limit nut 33 and the first locking nut 32. When it is desired to disassemble the connecting wire 31, the limit nut 33 can be unscrewed directly, and the connecting ring can be removed from the bolt post 30. During installation, the connecting ring is directly sleeved on the bolt post 30, and then the limit nut 33 is screwed on to clamp the connecting ring between it and the first locking nut 32. Compared with welding for electrical connection, this method is more convenient for subsequent disassembly and maintenance.

[0048] In some embodiments, combined with Figures 4 to 7 As shown, the electrode structure includes a positive electrode plate 35 and a negative electrode plate 36, which are arranged in parallel and spaced apart. They are respectively connected to the high-voltage and low-voltage ends of the driving power supply. When energized, the positive electrode plate 35 and negative electrode plate 36 can electrolyze to generate highly active substances. The electrode structure also includes a positive conductive strip 37 connected to the positive electrode plate 35 and a negative conductive strip 38 connected to the negative electrode plate 36. Bolt posts 30 are respectively provided on the positive conductive strip 37 and the negative conductive strip 38.

[0049] In some preferred embodiments, the electrode structure includes a plurality of positive electrode plates 35 and a plurality of negative electrode plates 36, which are arranged alternately in sequence; the electrode structure also includes a positive conductive strip 37 and a negative conductive strip 38, which are spaced above the positive electrode plates 35 and the negative electrode plates 36, and the plurality of positive electrode plates 35 are fixed and electrically connected to the positive conductive strip 37, and the plurality of negative electrode plates 36 are fixed and electrically connected to the negative conductive strip 38, and bolt posts 30 are respectively provided at both ends of the positive conductive strip 37 and the negative conductive strip 38.

[0050] In the above embodiments, multiple positive electrode plates 35 and negative electrode plates 36 are arranged in parallel and staggered sequence, maximizing the effective reaction area of ​​the electrode plates and significantly improving the yield of active material per unit time. The positive electrode conductive strip 37 and negative electrode conductive strip 38 respectively collect the current, ensuring uniform current distribution and avoiding the problem of low local electrolysis efficiency. This also facilitates the centralized connection of the positive electrode plates 35 and negative electrode plates 36 to the driving power supply, avoiding the inconvenience of connecting multiple electrode plates to the driving power supply one by one. Furthermore, the two bolt posts 30 at each end of the top of the positive electrode conductive strip 37 and negative electrode conductive strip 38 respectively form a four-point fixation, further enhancing the stability of the electrolysis module 3 when suspended.

[0051] Based on the above embodiments, as a further defined implementation, the positive electrode conductive strip 37 and the negative electrode conductive strip 38 are elongated plate-like structures and are metal plates. Bolt posts 30 are integrally formed on the positive electrode conductive strip 37 and the negative electrode conductive strip 38. The length direction of the positive electrode conductive strip 37 and the negative electrode conductive strip 38 is consistent with the arrangement direction of the positive electrode plate 35 and the negative electrode plate 36, and the length of the positive electrode conductive strip 37 and the negative electrode conductive strip 38 is not less than the arrangement length of the positive electrode plate 35 and the negative electrode plate 36. The positive electrode conductive strip 37 and the negative electrode conductive strip 38 are arranged at intervals along the length direction of the positive electrode plate 35 and the negative electrode plate 36. Two bolt posts 30 are provided at both ends of the positive electrode conductive strip 37, and two bolt posts 30 are provided at both ends of the negative electrode conductive strip 38. The four bolt posts 30 are distributed in a quadrilateral shape, further improving the stability of the electrode module. Four first mounting holes 200 are correspondingly provided in the mounting mold 21.

[0052] In some embodiments, the electrode structure further includes a plurality of insulating blocks 39, the number of which is the same as the sum of the number of positive electrode plates 35 and negative electrode plates 36. A clearance opening is provided on the positive electrode plate 35 at the position corresponding to the negative electrode conductive strip 38, and an insulating block 39 is installed in the clearance opening. The insulating block 39 is used to isolate the positive electrode plate 35 from the negative electrode plate 36 and from the negative electrode conductive strip 38. Similarly, a clearance opening is also provided on the negative electrode plate 36 at the position corresponding to the positive electrode conductive strip 37, and an insulating block 39 is installed in the clearance opening. The insulating block 39 is used to isolate the positive electrode plate 35 from the negative electrode plate 36 and from the negative electrode plate 36 to the positive electrode conductive strip 37.

[0053] In this embodiment, the positive electrode plate 35 and the negative electrode plate 36 are arranged alternately in sequence; the number of each positive electrode plate 35 and negative electrode plate 36 is not less than one, and preferably multiple; the positive electrode plate 35 and the negative electrode plate 36 of the electrolysis module 3, as well as the positive electrode plate 35 and the negative electrode conductive strip 38, and the negative electrode plate 36 and the positive electrode conductive strip 37, are separated by insulating blocks 39; the insulating blocks 39 are assembled and fixed to the positive electrode plate 35 and the negative electrode plate 36 by slots. The driving power supply is located outside the disinfection tank. The positive and negative electrodes of the electrolysis module 3 are fixedly connected to the conductive strips respectively; all the positive electrodes are welded to a single conductive strip; all the positive electrode plates 35 are welded to a single positive electrode conductive strip 37, and all the negative electrode plates 36 are welded to a single negative electrode conductive strip 38. The driving power supply and the conductive strips are connected by connecting wires 31 to provide + / - power. The conductive strips are provided with cylindrical conductive posts with threaded features for the installation and fixing of the electrolysis module 3, and can be connected to the driving power supply.

[0054] In some embodiments, combined with Figure 1 , Figure 3 and Figure 4 As shown, the disinfection tank also includes a waterproof cover 4, which is detachably installed on the tank cover 2 and used to seal the installation pressure type 21.

[0055] In the above embodiments, by adding a waterproof cover 4 to seal the installation pressure 21, it is possible to effectively prevent external water sources from contacting the live bolt post 30 and the connection part between the bolt post 30 and the connecting wire 31, which greatly improves the electrical safety and long-term operational reliability of the product in a humid kitchen environment.

[0056] In some embodiments, a first annular rib 22 is fixedly provided on the water tank cover 2, and the first annular rib 22 surrounds the outer periphery of the mounting mold 21; a second annular rib 41 is provided on the bottom wall of the waterproof cover 4 corresponding to the first annular rib 22, and the second annular rib 41 is snapped and fastened to the outside of the first annular rib 22. Through the design of the first annular rib 22 and the second annular rib 41, it is possible to achieve quick installation and positioning of the waterproof cover 4 and the water tank cover 2, and it can also play a role in blocking water, preventing external water from flowing into the interior of the mounting mold 21 from the assembly gap between the waterproof cover 4 and the water tank cover 2.

[0057] Based on the above embodiments, as a further defined implementation, the first annular rib 22 is provided with a wiring opening 221 for the connecting wire 31 to pass through. There are two connecting wires 31, one of which is connected to the bolt post 30 on the positive conductive strip 37, and the other is connected to the bolt post 30 on the negative conductive strip 38. The first annular rib 22 is provided with two corresponding wiring openings 221.

[0058] In some embodiments, the water tank cover 2 is screwed to the water tank body 1. In the above embodiment, the top cover and the water tank body 1 are connected by screws instead of clips, which ensures the connection strength between the water tank top cover 2 and the water tank body 1, can withstand the weight of the electrolysis module 3 and the liquid level detection module 5, and maintains good sealing performance during long-term use to prevent water leakage.

[0059] Based on the above embodiments, as a further defined implementation, the water tank cover 2 is provided with a plurality of screw holes 204 spaced apart along the circumference, and a plurality of screw posts 11 are correspondingly provided on the inner circumferential wall of the water tank body 1. The plurality of screw holes 204 and screw posts 11 are connected one-to-one by the plurality of screws to realize the connection and fixation between the water tank cover 2 and the water tank body 1.

[0060] In some embodiments, combined with Figure 1 , Figure 4 , Figure 5 As shown, the disinfection tank also includes a liquid level detection module 5, which is detachably suspended and installed on the tank cover 2. The liquid level detection module 5 is used to detect the liquid level information inside the tank body 1. In the above embodiments, by integrating the liquid level detection module 5 into the disinfection water tank, real-time monitoring of the liquid level inside the tank body 1 is achieved, effectively preventing water overflow and the risk of dry burning, and ensuring that the electrolysis process is always carried out within a safe water level range. Furthermore, by detachably suspending the liquid level detection module 5 on the tank cover 2, the liquid level detection module 5 and the tank cover 2 can be disassembled and reassembled as a whole. When maintenance or replacement of the liquid level detection module 5 is desired, simply open the tank cover 2, greatly facilitating future maintenance and replacement. Moreover, by installing the liquid level detection module 5 on the tank cover 2, compared to installing it on the side wall of the tank, the overall center of gravity of the tank is more stable and less prone to tipping over. Compared to installing it on the bottom wall of the tank, this avoids the problems of the liquid level detection module 5 being easily damaged or having scale buildup affecting detection sensitivity due to long-term immersion in water.

[0061] In some embodiments, combined with Figure 1 , Figures 3 to 5 As shown, the water tank cover 2 is provided with a second mounting hole 201, which is a countersunk hole; the top of the liquid level detection module 5 is provided with a threaded connection section, and the threaded connection section is provided with a positioning nut 52 and a second sealing ring 53 from bottom to top; the threaded connection section extends into the second mounting hole 201 and is locked and fixed by the second locking nut 51, so as to press the second sealing ring 53 against the bottom circumferential edge of the second mounting hole 201.

[0062] In the above embodiment, the second mounting hole 201 adopts a countersunk hole design, which allows the second locking nut 51 and the threaded connection section to be accommodated, avoiding the problem that the second locking nut 51 and the threaded connection section protrude outwards and easily interfere with other components, affecting the overall aesthetics. Furthermore, through the cooperation of the positioning nut 52, the second sealing ring 53, and the second locking nut 51, not only is the vertical suspension installation of the liquid level detection module 5 achieved, but the tight pressure between the second sealing ring 53 and the bottom of the countersunk hole forms a reliable waterproof sealing structure, preventing water in the water tank from seeping out along the installation gap of the liquid level detection module 5.

[0063] Based on the above embodiments, as a further defined implementation, a portion of the water tank cover 2 is recessed downwards to form a pressed structure. A through hole is opened in the middle of the pressed structure, and the inner cavity of the pressed structure and the through hole form a stepped hole, namely the second mounting hole 201. The middle portion of the pressed structure is recessed upwards to form an annular groove. The annular groove is located on the outer periphery of the through hole. When the liquid level detection module 5 is installed in place, the positioning nut 52 and the second sealing ring 53 are located in the annular groove and are tightly abutted and limited within the annular groove. Through the design of the annular groove, the installation efficiency of the liquid level detection module 5 and the sealing effect at the second mounting hole 201 can be further improved.

[0064] The overall assembly process of the disinfection water tank provided in this embodiment is as follows: The electrolysis module 3 is fixed by nuts and is suspended and vertically assembled on the water tank cover 2; the electrolysis module 3 and the water tank cover 2 are sealed by a first sealing ring 34. Under the drive of the power supply, the electrolysis module 3 continuously generates highly active substances near the positive electrode for a certain period of time, which then dissolve in the water to form active water with high efficiency in killing bacteria. The liquid level detection module 5 is used to detect the liquid level in the water tank body 1 when water is introduced, to prevent the liquid level in the water tank body 1 from being too high, resulting in overflow or other abnormalities. The liquid level detection module 5 is fixed by nuts and is suspended and vertically assembled on the water tank cover 2; the liquid level detection module 5 and the water tank cover 2 are sealed by a second sealing ring 53. The water tank cover 2, with the liquid level detection module 5, electrolysis module 3, and other components assembled, is installed and fixed on the water tank body 1.

[0065] The disinfection water tank provided in this embodiment has the function of generating active water and using active water to thoroughly disinfect tableware, the inner cavity of the dishwasher and the pipeline; and by periodically reversing the polarity to remove scale on the cathode surface, it ensures the operational stability of generating active water and extends the service life of the electrolysis module 3.

[0066] According to an embodiment of the present invention, in another aspect, a dishwasher is provided, including an inner tank and a disinfection water tank of any of the above embodiments, the disinfection water tank being used to deliver activated water to the inner tank.

[0067] By applying the aforementioned disinfection water tank to a dishwasher, the dishwasher gains the ability to generate activated water. This activated water not only kills bacteria on the surface of tableware but also flows through the inner tank and pipes, achieving comprehensive, three-dimensional disinfection.

[0068] According to an embodiment of the present invention, in another aspect, a control method suitable for the above-described dishwasher is also provided, combined with... Figure 8 As shown, the control method includes the following steps: Step S101: In the active water preparation stage, the driving power supply is controlled to supply power to the electrolysis module 3 with the initial polarity to continuously prepare active water; Step S102: During the electrode descaling stage, the output polarity of the drive power supply is reversed, so that the original positive electrode of the electrolysis module becomes the negative electrode and the original negative electrode becomes the positive electrode, and the reverse power supply is maintained for the set descaling time to remove the scale accumulated on the surface of the original negative electrode.

[0069] In the above embodiments, by controlling the polarity of the drive power supply to change the original negative electrode to the positive electrode, the scale attached to the original negative electrode is dissolved and peeled off using the electrochemical principle. This effectively solves the problem of calcium and magnesium ions easily accumulating and forming scale on the negative electrode during electrolysis. Compared with adding chemical descaling agents, the above descaling method is simpler and more efficient, ensuring the long-term operating efficiency of the electrolysis module 3, extending the service life of the electrodes, and ensuring the continuity of the disinfection effect.

[0070] Based on the above embodiments, as a further defined implementation method, the descaling time is set to 2 to 5 minutes, preferably 2 minutes.

[0071] Based on the above embodiments, as a further defined implementation method, the output polarity of the drive power supply is reversed, so that the original positive terminal of the electrolysis module becomes the negative terminal and the original negative terminal becomes the positive terminal. Specifically, the drive power supply reverses the power supply from the "positive terminal" to the "negative terminal" of the electrolysis module 3; at the same time, the power supply from the "negative terminal" to the "positive terminal" of the electrolysis module 3 is reversed.

[0072] More specifically, in the activated water preparation stage: the end of the driving power supply connected to the positive conductive strip 37 is the high-voltage end, and the end connected to the negative conductive strip 38 is the low-voltage end. In other words, in the activated water preparation stage: the driving power supply provides positive charge to the positive conductive strip 37 and negative charge to the negative conductive strip 38; in the electrode descaling stage: the driving power supply provides negative charge to the positive conductive strip 37 and positive charge to the negative conductive strip 38.

[0073] In some embodiments, the polarity reversal operation of the drive power supply is performed periodically, and the period is determined based on the total runtime of the electrolysis module 3 or the cumulative number of times the dishwasher is used.

[0074] In the above embodiments, the descaling operation is set as a periodic action based on the total running time or the cumulative number of uses, which makes the timing of descaling more reasonable. This avoids the problem of frequent descaling occupying user time and wasting resources, and also prevents excessive scale buildup that is difficult to remove.

[0075] Based on the above embodiments, as a further defined implementation, when the total running time of the electrolysis module 3 reaches the set cleaning time, and the electrolysis module 3 completes the current activated water preparation task, the drive power supply is controlled to perform a polarity reversal operation to remove scale from the cathode surface of the electrolysis module 3. For example, after the electrolysis module 3 has run for 50 minutes and the activated water preparation is complete, the drive power supply reverses the polarity of the positive and negative electrodes to remove scale from the cathode surface.

[0076] As an alternative implementation, the drive power supply can be controlled to perform a polarity reversal operation when a descaling trigger signal is received from the user.

[0077] In some embodiments, during the active water preparation stage, the driving power supply is controlled to supply power to the electrolysis module 3 with an initial polarity to continuously prepare active water, specifically including the following steps: Step S201: Receive the activated water preparation signal; Step S202: Control the water inlet mechanism to introduce water into the water tank body 1, and at the same time monitor the water level information in the water tank body 1 in real time; Step S203: When it is determined that the water level in the water tank body 1 has reached the set maximum liquid level, stop adding water to the water tank body 1; Step S204: Control the drive power supply to supply power to the electrolysis module 3 with the initial polarity to prepare activated water until the electrolysis module 3 reaches the set working time.

[0078] In the above embodiments, electrolysis is only started after confirming that the water level has reached the maximum level, which fundamentally eliminates the risk of dry burning damage caused by the electrolysis module 3 working in a waterless or low water level state, and improves the safety of product use.

[0079] In some embodiments, after the activated water preparation stage is completed, the following steps are also performed: Step S301: Control the water pump to draw the activated water in the water tank body 1 into the inner tank, and monitor the water level information in the water tank body 1 in real time. Step S302: When it is determined that the water level in the water tank body 1 has reached the set minimum liquid level, control the water pump to stop working; Step S303: Simultaneously control the dishwasher's washing pump to start, drawing the active water in the inner tub to the dishwasher's spray arm, and then spraying it into the inner tub through the spray arm.

[0080] In the above embodiment, after the activated water is prepared, the water pump delivers the activated water from the water tank to the inner tank and monitors the water level information in the water tank body 1 in real time. When it is determined that the water level in the water tank body 1 has reached the set minimum liquid level, the water pump is controlled to stop working, protecting the water pump and preventing damage from dry running. This ensures that the high-concentration activated water can be accurately delivered to the inner tank, and the rotating spray arm is used to spray to achieve comprehensive disinfection of tableware, inner cavity and pipeline, improving the user experience.

[0081] The dishwasher control method provided in this embodiment can use the activated water prepared by the electrolysis module 3 to thoroughly disinfect and sterilize the dishwasher, and also descale the electrolysis module 3. The specific working process is as follows: After the active water preparation program is started, external water enters the water tank body 1 through the water inlet 202 of the water tank cover 2; the liquid level detection module 5 detects whether the liquid level has reached the maximum level; when the liquid level detection module 5 detects that the liquid has reached the maximum level, the electrolysis module 3 is started to prepare highly active substances and dissolve them in the water to form active water. The electrolysis module 3 discharges to generate highly active substances at the positive electrode, and a large number of Mg2+, Ca2+ and other scale ions are collected at the negative electrode, which easily form sediment scale. After the electrolysis module 3 runs for a period of time, the active water preparation is completed; the drive power supply reverses the polarity of the positive and negative electrodes to remove scale on the cathode surface; the polarity is reversed and the set time is run; the active water is drawn into the dishwasher inner tub through the water outlet 203; the liquid level detection module 5 detects whether the liquid level has reached the minimum level; when the liquid level detection module 5 detects that the liquid has reached the minimum level, the washing pump is turned on; the active water is driven by the washing pump to flow through the spray arm over the surface of the tableware and all corners, completing the disinfection and sterilization of the tableware, the dishwasher inner cavity and pipes. After the set disinfection time, the drying program is executed, and the process ends.

[0082] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the protection scope of the embodiments of this application.

Claims

1. A disinfection water tank, characterized in that, include: The water tank body (1) has an opening at the top; The water tank cover (2) is detachably installed at the opening; An electrolysis module (3) is detachably suspended on the top cover (2) of the water tank. The electrolysis module (3) is connected to a driving power source. The electrolysis module (3) can discharge under the drive of the driving power source to generate active substances, which dissolve in the water of the water tank body (1) to form active water.

2. The disinfection tank according to claim 1, characterized in that, The water tank cover (2) is provided with a downwardly recessed mounting mold (21), and the mounting mold (21) is provided with a first mounting hole (200). The electrolysis module (3) is detachably connected to the first mounting hole (200).

3. The disinfection tank according to claim 2, characterized in that, The electrolysis module (3) is fixedly provided with a bolt post (30), which extends into the first mounting hole (200) and is locked and fixed by the first locking nut (32); The bolt post (30) has a protruding section extending into the mounting mold (21), the first locking nut (32) is threaded to the protruding section, and the recess depth of the mounting mold (21) is greater than the height of the protruding section, and the first locking nut (32) is accommodated in the mounting mold (21).

4. The disinfection tank according to claim 3, characterized in that, The electrolysis module (3) includes: The electrode structure, wherein the bolt post (30) is fixedly disposed on the top of the electrode structure; A connecting wire (31) is provided, wherein the bolt post (30) is configured as a conductive post with external threads, and the connecting wire (31) is connected between the bolt post (30) and the driving power supply to realize the electrical connection between the electrode structure and the driving power supply.

5. The disinfection tank according to any one of claims 2 to 4, characterized in that, The disinfection tank also includes: Waterproof cover (4), which is detachably installed on the water tank cover (2) to seal the mounting mold (21).

6. The disinfection tank according to claim 5, characterized in that, The water tank cover (2) is fixedly provided with a first annular rib (22), which surrounds the outer periphery of the mounting mold (21); The bottom wall of the waterproof cover (4) is provided with a second annular rib (41) corresponding to the first annular rib (22), and the second annular rib (41) is snapped and fastened to the outside of the first annular rib (22).

7. The disinfection tank according to any one of claims 1 to 4, characterized in that, The water tank cover (2) is screwed to the water tank body (1).

8. The disinfection tank according to any one of claims 1 to 4, characterized in that, The disinfection tank also includes: The liquid level detection module (5) is detachably suspended and installed on the top cover (2) of the water tank. The liquid level detection module (5) is used to detect the liquid level information in the water tank body (1).

9. The disinfection tank according to claim 8, characterized in that, The water tank cover (2) is provided with a second mounting hole (201), which is a countersunk hole; The top of the liquid level detection module (5) is provided with a threaded connection section, and the threaded connection section is provided with a positioning nut (52) and a second sealing ring (53) from bottom to top. The threaded connection section extends into the second mounting hole (201) and is locked in place by the second locking nut (51) to press the second sealing ring (53) against the bottom circumferential edge of the second mounting hole (201).

10. A dishwasher, characterized in that, It includes an inner tank and a disinfection water tank as described in any one of claims 1 to 9, wherein the disinfection water tank is used to deliver activated water to the inner tank.

11. A control method applicable to the dishwasher according to claim 10, characterized in that, The control method includes: During the active water preparation stage, the driving power supply is controlled to supply power to the electrolysis module (3) with the initial polarity to continuously prepare active water; During the electrode descaling stage, the output polarity of the control drive power supply is reversed, so that the original positive electrode of the electrolysis module (3) becomes the negative electrode and the original negative electrode becomes the positive electrode, and the reverse power supply is maintained for the set descaling time to remove the scale accumulated on the surface of the original negative electrode.

12. The control method for a dishwasher according to claim 11, characterized in that, The polarity reversal operation of the drive power supply is performed periodically, and the period is determined based on the total running time of the electrolysis module (3) or the cumulative number of times the dishwasher is used.

13. The control method for a dishwasher according to claim 11, characterized in that, In the active water preparation stage, the driving power supply is controlled to supply power to the electrolysis module (3) with the initial polarity to continuously prepare active water, specifically including the following steps: Receive the signal for activated water preparation; The water inlet mechanism is controlled to introduce water into the water tank body (1), while the water level information in the water tank body (1) is monitored in real time. When it is determined that the water level in the water tank body (1) has reached the set maximum liquid level, water is stopped being introduced into the water tank body (1); The drive power supply is controlled to supply power to the electrolysis module (3) with the initial polarity to prepare activated water until the electrolysis module (3) reaches the set working time.

14. The control method for a dishwasher according to claim 11, characterized in that, After the activated water preparation stage is completed, the following steps are also performed: The water pump is controlled to draw the active water in the water tank body (1) into the inner tank, and the water level information in the water tank body (1) is monitored in real time. When it is determined that the water level in the water tank body (1) has reached the set minimum liquid level, the water pump is controlled to stop working; At the same time, the dishwasher's washing pump is activated, drawing the active water from the inner tank to the dishwasher's spray arm, and then spraying it into the inner tank through the spray arm.

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