Oral irrigator with function of instantly adjusting hydrogen peroxide concentration and control method of oral irrigator

Abstract

The invention relates to the technical field of oral irrigators, in particular to an oral irrigator with a function of instantly adjusting hydrogen peroxide concentration and a control method of the oral irrigator with the function of instantly adjusting the hydrogen peroxide concentration, and the oral irrigator with the function of instantly adjusting the hydrogen peroxide concentration comprises a shell. The shell is provided with a water tank assembly, a hydrogen peroxide generation module connected with the water tank assembly, a pump body assembly, a water outlet assembly connected with the hydrogen peroxide generation module and the pump body assembly, and a circuit board assembly electrically connected with the hydrogen peroxide generation module and the pump body assembly. The hydrogen peroxide generation module is used for converting liquid in the water tank assembly into a hydrogen peroxide solution, and the pump body assembly is started to drive the hydrogen peroxide solution to be discharged from the water outlet assembly. The hydrogen peroxide generation module is integrated in the oral irrigator, so that the hydrogen peroxide generation module in the oral irrigator can instantly generate a hydrogen peroxide solution with a proper concentration for irrigating an oral cavity, and the situation that a pre-prepared solution is easily influenced by illumination and temperature and fails is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of water flossers, and in particular to a water flosser with a function of instantly adjusting the concentration of hydrogen peroxide and a control method thereof. Background Art

[0002] As a common oral cleaning auxiliary tool, the water flosser mainly uses pulsed water flow to impact the gaps between teeth, gingival sulcus and other parts to remove food residues, dental plaque and other dirt. It continues to develop in terms of nozzle design, water flow pattern adjustment and overall portability, but the basic principle is still based on the simple action of water flow.

[0003] Hydrogen peroxide has certain applications in the field of oral medicine and care due to its strong oxidizing and bactericidal properties. For example, hydrogen peroxide solution is often used for wound irrigation and disinfection before and after oral surgery; some oral care products such as mouthwash also add low-concentration hydrogen peroxide for daily oral sterilization and cleaning. However, most of these applications directly use pre-prepared hydrogen peroxide solutions, which have problems such as fixed concentration, inconvenience in use, and inability to work with water flossers. However, water flossers that rely solely on water flow are difficult to completely remove bacteria, viruses, and stubborn dental plaque in the mouth, especially in hard-to-reach areas such as gaps between teeth and gingival sulci. Long-term incomplete cleaning may lead to oral problems such as caries, periodontitis, and bad breath.

[0004] Existing methods of using hydrogen peroxide for oral care, such as gargling or rinsing with a separate hydrogen peroxide solution, are cumbersome to operate and require additional preparation and operation. Moreover, high-concentration hydrogen peroxide is corrosive and may damage the oral mucosa if used improperly. In addition, the concentration of the pre-prepared hydrogen peroxide solution may change during storage due to factors such as light and temperature, affecting the sterilization effect, and the solution is not convenient to carry and store. At present, there is a lack of a device on the market that can instantly adjust the concentration of hydrogen peroxide during the use of the water flosser. The oral conditions and needs of different users are different. For example, some users may only need a lower concentration of hydrogen peroxide for daily oral cleaning and prevention, while for users with oral diseases such as periodontitis, a higher concentration of hydrogen peroxide may be required for enhanced sterilization during treatment, but the existing technology cannot meet this personalized and immediate needs. Therefore, it is necessary to improve the structure of the water flosser to improve the immediacy and convenience of the use process. Summary of the invention

[0005] In view of the technical problems that the above-mentioned oral irrigator uses a separate hydrogen peroxide solution for gargling or rinsing, the operation is cumbersome and requires additional preparation and operation. High-concentration hydrogen peroxide is corrosive and may damage the oral mucosa if used improperly. The pre-prepared hydrogen peroxide solution is not convenient to carry and store, and is prone to failure and affects the sterilization effect. The technical solution adopted by the present invention to solve the technical problem is: A water flosser with the function of instantly adjusting the concentration of hydrogen peroxide, comprising a shell, the shell being provided with a water tank assembly, a hydrogen peroxide generating module connected to the water tank assembly, a pump body assembly, a water outlet assembly respectively connected to the hydrogen peroxide generating module and the pump body assembly, the shell being provided with a circuit board assembly respectively electrically connected to the hydrogen peroxide generating module and the pump body assembly, the hydrogen peroxide generating module being used to convert the liquid in the water tank assembly into a hydrogen peroxide solution, and the pump body assembly being started to drive the hydrogen peroxide solution to be discharged from the water outlet assembly.

[0006] Furthermore, the hydrogen peroxide generating module is provided with a liquid inlet connected to the water tank assembly, a liquid outlet connected to the water outlet assembly, an electrolyte chamber respectively connected to the liquid inlet and the liquid outlet, a cathode reaction assembly and an anode reaction assembly located in the electrolyte chamber, and the cathode reaction assembly is used to generate hydrogen peroxide.

[0007] Furthermore, the hydrogen peroxide generating module is provided with a spoiler assembly for increasing the liquid movement stroke, the spoiler assembly is connected between the cathode reaction assembly and the anode reaction assembly, the spoiler assembly is provided with a first spoiler and a second spoiler respectively located in the electrolyte chamber, the first spoiler is provided with a first spoiler opening for liquid to pass through, the second spoiler is provided with a second spoiler opening for liquid to pass through, and the extension directions of the first spoiler and the second spoiler respectively intersect with the connection directions of the liquid inlet and the liquid outlet.

[0008] Furthermore, the cathode reaction component includes a cathode electrode, a cathode conductive end connected to the cathode electrode, and a cathode electrode catalyst layer arranged on the surface of the cathode electrode, and the anode reaction component includes an anode electrode and an anode conductive end connected to the anode electrode.

[0009] Furthermore, the spoiler assembly is provided with a spoiler bracket connecting the first spoiler portion and the second spoiler portion, and the spoiler bracket is provided with a bracket inner cavity, a first spoiler opening connected to the bracket inner cavity and close to the liquid inlet, and a second spoiler opening connected to the bracket inner cavity and close to the liquid outlet.

[0010] Furthermore, the hydrogen peroxide generating module includes a first shell and a second shell, the liquid inlet and the liquid outlet are both located in the first shell, the first shell is provided with a positioning portion for limiting the anode reaction component, the area of ​​the anode electrode is smaller than the area of ​​the cathode electrode, the area of ​​the cathode electrode is larger than the bottom area of ​​the inner cavity of the bracket, the cathode reaction component is close to the side of the liquid inlet, the liquid inlet and the liquid outlet are relatively arranged on both sides of the first shell, the first opening of the spoiler and the second opening of the spoiler are relatively arranged, the first spoiler opening and the second spoiler opening are staggered and relatively arranged, and the first spoiler opening and the second spoiler opening are both close to the anode electrode.

[0011] Furthermore, the pump body assembly includes a driving member, a pressure assembly connected to the driving member and the water outlet assembly, the shell is provided with a fixed bracket, the fixed bracket is provided with a fixed bracket cavity for accommodating the driving member, one side of the fixed bracket is connected to a hydrogen peroxide generating module, one side of the fixed bracket is connected to a circuit board assembly, the water outlet assembly includes a nozzle connected to the outside of the shell, a water outlet pipe respectively connected to the nozzle and the pressure assembly, and a reaction module connecting pipe is connected between the liquid outlet and the water outlet pipe.

[0012] Furthermore, a power supply assembly is connected to one side of the hydrogen peroxide generating module, and the hydrogen peroxide generating module is provided with a first supporting end for supporting the power supply assembly and a first limiting end for limiting the power supply assembly. The hydrogen peroxide generating module is provided with a first positioning end for positioning one end of the power supply assembly, and the fixed bracket is provided with a second positioning end for positioning the other end of the power supply assembly.

[0013] Furthermore, the water tank assembly includes a water tank located in the shell, a water tank cover covering the water tank, and a water pump for transporting liquid to the hydrogen peroxide generating module. The fixed bracket is provided with a first fixed portion and a first clamping portion. The hydrogen peroxide generating module is provided with a second fixed portion cooperatedly connected to the first fixed portion, and a second clamping portion clampedly connected to the first clamping portion.

[0014] The object of the present invention is to provide a method for controlling a water flosser, comprising the water flosser with the function of instantly adjusting the concentration of hydrogen peroxide as described above, the steps of which include: S1. Start the water flosser, select the desired hydrogen peroxide concentration, start the pump assembly, and the solution of the water tank assembly enters the hydrogen peroxide generating module to react and obtain a hydrogen peroxide solution; S2, the pump body assembly drives the hydrogen peroxide solution to be discharged from the water outlet assembly 13 according to a set frequency; S3. The circuit board assembly adjusts the voltage and flow rate to drive the hydrogen peroxide concentration to be adjusted instantly.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention integrates the hydrogen peroxide generating module into the oral irrigator, so the user does not need to prepare hydrogen peroxide solution separately, thus eliminating the cumbersome preparation steps. The user adds an appropriate amount of electrolyte to the water tank assembly. After starting the oral irrigator, the internal hydrogen peroxide generating module can instantly generate hydrogen peroxide solution of appropriate concentration for oral rinsing, thus avoiding the situation where the pre-prepared solution is easily affected by light and temperature and becomes ineffective. The present invention controls the generation rate of hydrogen peroxide through the circuit board assembly, and uses the pump body assembly to drive the hydrogen peroxide solution to be discharged from the water outlet assembly, so that it can penetrate into the dead corners of oral cleaning such as the gaps between teeth and gingival sulcus, providing strong protection for oral health while efficiently cleaning and sterilizing.

[0016] 2. The actual application of the oral irrigator with the function of adjusting the concentration of hydrogen peroxide in the selected mode of the present invention. The oral irrigator can adjust the concentration of hydrogen peroxide in time according to the required environment. Its convenient and efficient functional characteristics can meet the diverse oral care needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a water flosser with the function of instantly adjusting the concentration of hydrogen peroxide according to the present invention.

[0018] Figure 2 This is an exploded view of the water flosser with the function of instantly adjusting the concentration of hydrogen peroxide according to the present invention.

[0019] Figure 3 for Figure 2 Sectional view of part A.

[0020] Figure 4 for Figure 3 Exploded diagram.

[0021] Figure 5 Schematic diagram of the hydrogen peroxide generating module of the present invention.

[0022] Figure 6 for Figure 5 BB cross-sectional view.

[0023] Figure 7 Exploded view of the hydrogen peroxide generating module of the present invention.

[0024] Figure 8 Exploded view of the hydrogen peroxide generating module of the present invention.

[0025] Fig. 9 Schematic diagram of a spoiler assembly of the present invention. DETAILED DESCRIPTION

[0026] The water flosser comprises a shell 10, wherein the shell 10 is provided with a water tank assembly 11, a hydrogen peroxide generating module 1 connected to the water tank assembly 11, a pump body assembly 12, a water outlet assembly 13 respectively connected to the hydrogen peroxide generating module 1 and the pump body assembly 12, and a circuit board assembly 14 respectively electrically connected to the hydrogen peroxide generating module 1 and the pump body assembly 12, wherein the hydrogen peroxide generating module 1 is used to convert the liquid in the water tank assembly 11 into a hydrogen peroxide solution, and the pump body assembly 12 drives the hydrogen peroxide solution to be discharged from the water outlet assembly 13 after being started. The present invention integrates the hydrogen peroxide generation module into the water flosser, so that the user does not need to prepare hydrogen peroxide solution additionally, and the cumbersome preparation steps are omitted. The user adds an appropriate amount of electrolyte to the water tank assembly. After starting the water flosser, the internal hydrogen peroxide generation module can immediately generate a hydrogen peroxide solution of appropriate concentration for oral rinsing, avoiding the situation where the pre-prepared solution is easily affected by light and temperature and becomes ineffective. The present invention controls the generation rate of hydrogen peroxide through the circuit board assembly, and uses the pump body assembly to drive the hydrogen peroxide solution to be discharged from the water outlet assembly, which can penetrate into the oral cleaning dead corners such as the tooth gap and the gingival sulcus, and provide strong protection for oral health while efficiently cleaning and sterilizing. The circuit board assembly can timely control the voltage and flow rate of the hydrogen peroxide generation module, and at the same time, by controlling the frequency of the pump body assembly to generate different pressures, water columns with different flushing pressures can be obtained, thereby cleaning the oral cavity.

[0027] In addition, when hydrogen peroxide solution is used alone in the traditional way, if the concentration is not properly controlled, it is very easy to damage the oral mucosa. The water flow sprayed by the water flosser of the present invention carries an appropriate amount of hydrogen peroxide solution with a stable concentration, which effectively avoids the corrosive risks caused by the use of high-concentration hydrogen peroxide. Through the intelligent regulation of the concentration of hydrogen peroxide during the water flossing process, the damage caused to the oral mucosa by hydrogen peroxide solution can be reduced. Hydrogen peroxide solution can penetrate into the dead corners of oral cleaning such as the gaps between teeth and gingival sulci, strongly kill bacteria, and remove food residues. Compared with ordinary water flossers, its cleaning and sterilization effect is improved, avoiding the risk of early storage and misuse of high-concentration hydrogen peroxide, thereby efficiently cleaning and sterilizing while providing more powerful protection for oral health.

[0028] In addition, the hydrogen peroxide generation module is integrated into the oral irrigator, so users no longer need to prepare hydrogen peroxide solution, and the tedious preparation steps are also eliminated. Just like using the oral irrigator normally, add an appropriate amount of clean water to the water tank component, start the oral irrigator, and the internal hydrogen peroxide generation module can instantly generate a hydrogen peroxide solution of appropriate concentration for oral rinsing, avoiding the situation where the pre-prepared solution is easily affected by light and temperature and becomes ineffective.

[0029] In addition, the integrated design makes it easy for users to carry. Users no longer need to carry a bottle of hydrogen peroxide solution separately, avoiding the trouble of solution leakage, bottle breakage, etc. Whether it is daily business trips, travel, or temporary oral cleaning after dining out, users can use it conveniently anytime and anywhere to keep their mouths clean at all times and maintain a good image.

[0030] like Figures 5 to 8 The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide shown in the figure, the hydrogen peroxide generating module 1 is provided with a liquid inlet 2 connected to the water tank assembly 11, a liquid outlet 3 connected to the water outlet assembly 13, an electrolyte chamber 4 respectively connected to the liquid inlet 2 and the liquid outlet 3, a cathode reaction assembly 5 and an anode reaction assembly 6 located in the electrolyte chamber 4, and the cathode reaction assembly 5 is used to generate hydrogen peroxide. By setting up the hydrogen peroxide generating module, the present invention only needs to inject a suitable liquid into the electrolyte chamber from the liquid inlet, without the need to prepare a separate hydrogen peroxide solution, and the hydrogen peroxide solution can be instantly generated in the cathode reaction assembly, thereby avoiding the situation where the concentration changes and the sterilization effect deteriorate due to long-term storage, and ensuring that the expected sterilization and disinfection effect can be achieved.

[0031] The liquid inlet can stably obtain the required basic liquid components from the water tank, while the liquid outlet can accurately deliver the instantly generated hydrogen peroxide solution of appropriate concentration to the water outlet component, ensuring a continuous and stable supply of bactericidal components during the flushing process, without any interruption in flow or uneven liquid supply, laying the foundation for efficient oral cleaning.

[0032] All key reaction components are integrated into a compact module, reducing the interference of external factors on the hydrogen peroxide generation process. The electrolyte chamber is like a stable "reaction cradle", providing a suitable working environment for the cathode and anode reaction components to avoid abnormal reactions or solution leakage due to external factors such as shaking and collision. At the same time, the integrated structural design makes the internal layout of the entire water flosser more regular, reduces the probability of failure, and extends the service life, allowing users to enjoy convenient and efficient oral cleaning services for a long time.

[0033] Optionally, in some embodiments, during the process of preparing hydrogen peroxide by electrolysis, oxygen may diffuse to the cathode surface, and during the electrochemical reaction, a reduction reaction of oxygen occurs on the cathode surface to generate hydrogen peroxide: O 2 + 2H + +2e - → H 2 O 2 ; At the same time, water oxidation reaction occurs on the anode surface to generate oxygen: 2H 2 O → O 2 + 4H+ +4e - ; The overall reaction formula of the entire electrolysis process is 2H 2 O + O 2 →2H 2 O 2 .

[0034] The present invention is used to generate hydrogen peroxide through the cathode reaction component, and the anode reaction component is conducive to the rapid transfer of oxygen and participation in the cathode reaction, thereby promoting the reaction.

[0035] Optionally, in some embodiments, the water tank assembly includes a water tank (not shown in the drawings), a water pump (not shown in the drawings) and a water tank cover. The water pump can pump water into the hydrogen peroxide generating module. The user can add the solution to the water tank and then use the water tank cover to seal the water inlet of the water tank, so that the liquid in the water tank can be poured out in time when not in use.

[0036] like Figures 6 to 9 The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide shown, the hydrogen peroxide generating module 1 is provided with a spoiler assembly 7 for increasing the liquid movement stroke, the spoiler assembly 7 is connected between the cathode reaction assembly 5 and the anode reaction assembly 6, the spoiler assembly 7 is provided with a first spoiler 71 and a second spoiler 72 respectively located in the electrolyte chamber 4, the first spoiler 71 is provided with a first spoiler opening 711 for liquid to pass through, the second spoiler 72 is provided with a second spoiler opening 721 for liquid to pass through, and the extension directions of the first spoiler 71 and the second spoiler 72 are respectively intersected with the connection direction of the liquid inlet 2 and the liquid outlet 3. The present invention improves the controllability of the hydrogen peroxide generation rate by arranging the spoiler assembly so that the electrolyte fully flows and reacts between the cathode reaction assembly and the anode reaction assembly.

[0037] Specifically, the present invention increases the liquid movement range by arranging a spoiler assembly in the shell, so that the electrolyte can fully flow and react between the cathode reaction assembly and the anode reaction assembly. On the one hand, the spoiler assembly improves the controllability of the hydrogen peroxide generation rate, and can produce an expected and sufficient amount of solution in a short time to meet oral care needs; on the other hand, the spoiler assembly promotes a more uniform and thorough reaction, and the generated hydrogen peroxide solution is of better quality, further improving the sterilization and disinfection effect.

[0038] Further, the first spoiler and the second spoiler are arranged so that the flow path of the electrolyte in the electrolyte chamber increases, and the spoiler assembly prolongs the residence time of the liquid in the electrolyte chamber. When the liquid flows in from the inlet and encounters the first spoiler, because its extension direction intersects with the connection direction of the inlet, the liquid is forced to change the flow direction, and forms a vortex and a shunt when passing through the opening of the first spoiler, which promotes the electrolyte in different regions to be fully mixed. Similarly, in the process of flowing to the liquid outlet, the second spoiler disrupts the smooth flow of the liquid again, further strengthens the degree of mixing, ensures that the electrolyte components are evenly distributed, avoids the phenomenon of local concentration polarization caused by poor liquid flow, and causes the ion concentration near the electrode surface to be too different from the concentration of the solution body, providing a more stable and uniform reaction environment for the cathode and anode reaction components, and the ions in the electrolyte have more time to contact the cathode electrode catalyst layer and the anode electrode surface on the cathode electrode surface, which is conducive to the stable generation of high-quality hydrogen peroxide solution.

[0039] like Figures 6 to 9 The toothbrush with the function of instantly adjusting the concentration of hydrogen peroxide shown, the cathode reaction component 5 includes a cathode electrode 51, a cathode conductive end 52 connected to the cathode electrode 51, and a cathode electrode catalyst layer arranged on the surface of the cathode electrode 51, and the anode reaction component 6 includes an anode electrode 61 and an anode conductive end 62 connected to the anode electrode 61. Further, the anode electrode includes an inert conductive material resistant to electrochemical corrosion such as a noble metal oxide coating electrode, a boron-doped diamond coating electrode, and a graphene coating electrode. The anode electrode has good electrochemical oxidation catalytic activity and stability, and can effectively promote the electrolysis reaction of water. The cathode electrode is preferably a material with a three-dimensional structure, including foamed nickel, porous graphite plate, sintered titanium, activated carbon felt, carbon paper and other materials. The cathode catalyst is a nano non-metallic material or a metal organic framework derived carbon catalyst with a certain concentration of boron, nitrogen, carbon, etc.

[0040] Optionally, the cathode catalyst of the present invention is a BN-doped mesoporous carbon or a nitrogen-doped metal organic framework-derived carbon catalyst. Specifically, the presence of BN bonds can change the electronic structure of the carbon material, generate more active sites, thereby improving the catalytic activity for the oxygen reduction reaction, and is beneficial to promote the two-electron oxygen reduction reaction to generate hydrogen peroxide, thereby improving the selectivity of the product.

[0041] Preparation method of BN-doped mesoporous carbon; M1, polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer and 1,3,5-triisopropylbenzene were dissolved in ethanol, and then boron phenolic resin solution was added, and hydrochloric acid was added to control the pH of the system to 4; Specifically, calculated by mass, polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer is used as a soft template to form an ordered mesoporous structure, and the dosage is 0.5-2 parts. 1,3,5-triisopropylbenzene is used as an organic solvent and structure directing agent to help form a uniformly dispersed system, and the dosage is 1-3 parts. Ethanol is used as a solvent to dissolve other components and adjust the viscosity of the solution, and the dosage is 50-100 parts. The boron phenolic resin solution adopts TY03 boron phenolic resin to provide a boron source and a carbon source to form BN-doped carbon in a pyrolysis reaction, and the dosage is 2-5 parts of boron phenolic resin to prepare a 20wt% solution. A 0.1M hydrochloric acid solution is used to adjust the pH value to about 4 to promote crosslinking and stabilize the gel structure.

[0042] M2, first evaporate at 25 °C for 24 h, then cross-link at 100 °C for 24 h, and finally heat to 800 °C in a nitrogen atmosphere at a heating rate of 1 °C / min and calcine for 2 h.

[0043] The preparation method of the nitrogen-doped metal organic framework-derived carbon catalyst is as follows: N1. Dissolve cobalt nitrate in methanol, stir evenly at room temperature to form a transparent solution, stir at 300 rpm, prepare the cobalt nitrate solution with a concentration of 0.1 mol / L, a molar ratio of cobalt nitrate to 2-methylimidazole of 1:2 to 1:4, react at 80°C, and react for 16 hours to obtain ZIF-67 nanocrystals; N2. The synthesized nanocrystals are pyrolyzed in a nitrogen inert atmosphere with a gas flow rate controlled at 30-100 mL / min, a pyrolysis temperature of 800°C, a heating rate usually controlled at 5°C / min, and a pyrolysis time of 4 hours to obtain a metal organic framework-derived carbon catalyst.

[0044] Specifically, metal organic framework materials have abundant metal centers and organic ligands. In the process of pyrolysis derivatization, metal atoms can serve as active sites. At the same time, the doping of nitrogen atoms can also introduce additional active sites, which greatly improves the active site density of the catalyst, enhances the catalytic activity of the oxygen reduction reaction, and is conducive to the efficient generation of hydrogen peroxide. After pyrolysis derivatization, a stable chemical bond or interaction is formed between the carbon material and the metal species, so that the catalyst has good structural stability and chemical stability during the electrochemical reaction, and can maintain high catalytic performance for a long time, reduce the deactivation of the catalyst, and improve the service life of the catalyst. The organic components of ZIF-67 nanocrystals are fully decomposed and carbonized, and the cobalt element is reduced and dispersed on the carbon substrate to form a derived carbon composite electrocatalyst with good electrochemical performance. Some nitrogen atoms in 2-methylimidazole will be fixed on the carbon skeleton. This nitrogen doping can change the electronic structure of the carbon material and produce more active sites, which is conducive to improving the performance of the catalyst in the preparation of electrochemical hydrogen peroxide.

[0045] Furthermore, the cathode electrode catalyst layer on the cathode electrode surface and the anode electrode surface can reduce the activation energy of the chemical reaction. In the process of generating hydrogen peroxide, the cathode electrode catalyst layer and the anode electrode provide more active sites for the electrochemical reaction, so that the ions involved in the reaction can gain and lose electrons more efficiently, greatly accelerating the conversion rate from electrolyte to hydrogen peroxide generation, reducing the time required for generation, and thus improving the overall use efficiency.

[0046] Specifically, for the cathode reaction component, the cathode electrode guides electrons to preferentially participate in the reduction reaction related to the generation of hydrogen peroxide, avoiding other competitive reduction reactions from consuming raw materials; for the anode reaction component, the anode electrode promotes the oxidation reaction to provide a suitable reaction environment for the cathode to generate hydrogen peroxide, ensuring that the generated hydrogen peroxide has a higher purity, the solution quality is stable and reliable, and unnecessary side reactions are reduced.

[0047] In addition, the cathode conductive end and the anode conductive end can act as a conductive bridge by being closely connected to the cathode electrode and the anode electrode respectively. During the entire electrolysis process, the current of the external power supply can be stably and evenly transmitted to the electrode surface, avoiding current fluctuations caused by poor contact or excessive resistance, ensuring that the electrode reaction proceeds continuously and stably, making the generation process of hydrogen peroxide smooth and orderly, and preventing the solution concentration from fluctuating due to unstable current, thereby ensuring the safety and effectiveness of oral care.

[0048] like Figures 6 to 9 The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide shown, the spoiler assembly 7 is provided with a spoiler bracket 73 connecting the first spoiler 71 and the second spoiler 72, the spoiler bracket 73 is provided with a bracket inner cavity 730, a spoiler first opening 731 connected to the bracket inner cavity 730 and close to the liquid inlet 2, and a spoiler second opening 732 connected to the bracket inner cavity 730 and close to the liquid outlet 3. Further, the first opening of the spoiler of the spoiler bracket is close to the liquid inlet, which can play a preliminary drainage and dispersion role for the electrolyte that has just flowed in. After the liquid enters from the liquid inlet, it is evenly dispersed to the bracket inner cavity through the first opening of the spoiler, and the spoiler bracket plays a stabilizing role, which not only reduces the risk of displacement and deformation of the first spoiler due to long-term stress, but also avoids the problem of excessive local flow velocity and uneven mixing caused by a large amount of liquid directly impacting the first spoiler, so that the liquid can achieve a preliminary smooth transition when entering the bracket inner cavity.

[0049] Specifically, the inner cavity of the bracket is interconnected with the first opening of the spoiler and the second opening of the spoiler, forming a local small liquid circulation channel. When part of the liquid flows through the inner cavity of the bracket, it will be temporarily retained and swirled in this small cycle due to the pressure difference and liquid inertia, further promoting the mixing between the electrolytes flowing in at different times. This not only helps to even out the electrolyte composition, but also allows ions that have not yet fully reacted to get the opportunity to contact the electrode again in the small circulation channel, indirectly improving the output efficiency of hydrogen peroxide.

[0050] like Figures 6 to 9 The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide shown in the figure, the hydrogen peroxide generating module 1 includes a first shell 8 and a second shell 9, the liquid inlet 2 and the liquid outlet 3 are both located in the first shell 8, the first shell 8 is provided with a positioning portion 82 for limiting the anode reaction component 6, the area of ​​the anode electrode 61 is smaller than the area of ​​the cathode electrode 51, the area of ​​the cathode electrode 51 is larger than the bottom area of ​​the bracket inner cavity 730, the cathode reaction component 5 is close to the side of the liquid inlet 2, the liquid inlet 2 and the liquid outlet 3 are relatively arranged on both sides of the first shell 8, the first opening 731 of the spoiler and the second opening 732 of the spoiler are relatively arranged, the first spoiler opening 711 and the second spoiler opening 721 are staggered and relatively arranged, and the first spoiler opening 711 and the second spoiler opening 721 are both close to the anode electrode 61. Furthermore, the first shell and the second shell are connected together by matching to form an electrolyte chamber, making the electrolyte chamber more stable, tight and reliable, providing a closed and safe environment for the electrochemical reaction, and ensuring the normal operation of the hydrogen peroxide generating module and the efficient chemical reaction. The modular design makes the device easy to assemble and disassemble, and convenient for maintenance. When the electrolyte chamber needs to be cleaned or inspected, the split design allows the hydrogen peroxide generating module to easily separate the shell and directly contact the inside of the electrolyte chamber for thorough cleaning or component replacement.

[0051] The first shell 8 is provided with a first shell mounting portion 80, and the second shell 9 is provided with a second shell matching portion 90, and the first shell mounting portion 80 is matched and connected with the second shell matching portion 90, so that the first shell 8 and the second shell 9 are enclosed to form the electrolyte chamber 4. Optionally, in some embodiments, the first shell mounting portion and the second shell matching portion can be connected by one or a combination of multiple modes such as snap connection, fastener connection, threaded connection, magnetic connection, mortise and tenon connection, and groove connection.

[0052] Specifically, in some embodiments, the first shell mounting portion is a connecting step portion, and the second shell matching portion is a snap-fit ​​portion, and the connection between the first shell and the second shell is achieved through snap-fit ​​connection.

[0053] Specifically, in some embodiments, the first shell mounting portion is a groove, the second shell matching portion is a protrusion, and the connection between the first shell and the second shell is achieved through a snap connection.

[0054] In addition, the matching connection design between the first shell and the second shell, with the liquid inlet and the liquid outlet located on the first shell, reduces the risk of electrolyte penetration when flowing through the gap between the first shell and the second shell, and ensures the sealing of the electrolyte chamber during operation.

[0055] Furthermore, the positioning portion provided on the first shell has a limiting effect on the anode reaction component. During the assembly process of the hydrogen peroxide generation module, it is ensured that the anode electrode can be quickly and accurately installed in the predetermined position and maintain a precise relative position relationship with other components. This not only improves the production and assembly efficiency, but also when the hydrogen peroxide generation module is in operation, even if it is affected by external forces such as vibration and shaking, the anode reaction component will not be displaced, thereby ensuring the stability of the electrolytic reaction, continuously and stably providing a reducing environment for the generation of hydrogen peroxide, and ensuring the stable output of the solution required for oral care.

[0056] Optionally, in some embodiments, the anode electrode is arranged in a flat plate and its area is smaller than that of the cathode electrode. This arrangement increases the oxidation reaction area of ​​the cathode. During the electrolysis process, more ions can undergo oxidation reactions on the anode surface to cooperate with oxygen in the water, providing more sufficient reactants for the cathode to generate hydrogen peroxide, thereby promoting the efficient generation of hydrogen peroxide. At the same time, a cathode electrode with a larger area can better disperse the current density, reduce local overheating, improve the stability and reaction efficiency of the entire electrode system, and meet the oral care needs for rapid and sufficient preparation of hydrogen peroxide solution.

[0057] Optionally, in some embodiments, the cathode electrode area is larger than the bottom area of ​​the bracket lumen, so that the electrolyte has more space to fully react when flowing through the cathode area. The flow of liquid on the large cathode surface is more uniform and slow, which is conducive to the full participation of ions in the reaction and avoids some ions leaving the electrode area before they have time to react due to excessive flow rate. The spoiler bracket limiter on the outside of the spoiler bracket abuts against the inner wall of the first shell, further fixing the position of the spoiler bracket, ensuring that the spoiler assembly guides the liquid flow path, allowing the electrolyte to form an efficient circulation flow between the cathode, anode and bracket lumen, improving the reaction synergy between the components, and improving the quality of hydrogen peroxide generation.

[0058] Furthermore, the cathode reaction component is close to the liquid inlet, so that the electrolyte that has just entered the hydrogen peroxide generation module can contact the cathode reaction area at the first time. Since the liquid inlet and the liquid outlet are relatively arranged on both sides of the first shell, on the one hand, the travel of the solution is extended, and on the other hand, the electrolyte will naturally flow through the cathode along the set path after entering, making full use of the kinetic energy of the liquid flowing in from the liquid inlet, prompting more raw materials to quickly participate in the reduction reaction of the cathode to generate hydrogen peroxide, and increasing the initial rate of the reaction.

[0059] In addition, the first opening of the spoiler and the second opening of the spoiler are arranged in a staggered manner, forcing the electrolyte to form a complex circuitous flow path in the inner cavity of the bracket, further enhancing the liquid mixing effect and ensuring that the electrolyte components flowing in at different times are evenly distributed. At the same time, it also makes the liquid flow more evenly when passing through the cathode and anode areas, avoiding the local flow rate being too fast or too slow to affect the reaction efficiency, guiding the liquid to flow in an orderly manner between the components, and optimizing the entire electrolysis reaction process.

[0060] Furthermore, the first spoiler opening and the second spoiler opening are both close to the anode electrode, and the flow rate near the anode electrode will be slightly larger. Part of the oxygen can move in the regional space, so that the liquid flow guided by the spoiler assembly can be focused on the key part of hydrogen peroxide generation, and more electrolyte containing reactants flows toward the cathode through the area between the first spoiler and the second spoiler, increasing the concentration of reactants on the cathode electrode surface, strengthening the reduction reaction process, and being beneficial to increasing the generation rate and output of hydrogen peroxide, and preventing the liquid from flowing away quickly through the second opening of the spoiler or the first opening of the spoiler without contacting the cathode electrode. This centralized flow design can also carry away the products generated by the reaction through the liquid flow rate close to the anode electrode, maintain suitable reaction conditions on the cathode electrode surface, and continuously and stably produce high-quality hydrogen peroxide solution for oral care.

[0061] The first spoiler 71 and the second spoiler 72 are arranged in parallel, and the first spoiler 71 and the second spoiler 72 are both L-shaped, and the first spoiler 71 and the second spoiler 72 are respectively in contact with the cathode electrode 51 and the anode electrode 61. Further, the cathode reaction component and the anode reaction component are respectively connected to the bottom of the first shell and the bottom of the second shell, and the spoiler components are distributed on both sides of the cathode reaction component and the anode reaction component, making full use of the space inside the shell, so that the entire hydrogen peroxide generation module structure layout is more compact. Each component fits tightly, there is no redundant gap, and the volume of the hydrogen peroxide generation module is reduced. In some embodiments, the portability of the product can be improved to meet the needs of users for oral care anytime and anywhere.

[0062] Specifically, the first spoiler and the second spoiler are both L-shaped and arranged in parallel, and are respectively in contact with the cathode electrode and the anode electrode. After the liquid flows in from the liquid inlet, it flows along the electrode surface under the guidance of the L-shaped first spoiler and the second spoiler, ensuring that the electrolyte is in full contact with the electrode, allowing the cathode and anode reactions to work closely together, and the ions can gain or lose electrons on the electrode surface in time to participate in the reaction, thereby increasing the hydrogen peroxide generation rate.

[0063] Specifically, the first spoiler and the second spoiler are respectively in contact with the cathode electrode and the anode electrode, forming a stable mechanical support structure to prevent problems such as loose connection, liquid leakage or abnormal reaction caused by impact displacement. Especially for oral care applications, which are often used in different environments and use angles, a stable and reliable structure ensures that the hydrogen peroxide generation module can work normally every time it is used, providing users with safe and effective oral care protection.

[0064] The first shell 8 is provided with a first shell opening 81 for the anode conductive end 62 to extend out, a first shell protection cavity 82 for accommodating the anode conductive end 62, and a first shell protection cavity opening 83 communicating with the first shell protection cavity 82; the second shell 9 is provided with a second shell opening 91 for the cathode conductive end 52 to extend out, a second shell protection cavity 92 for accommodating the cathode conductive end 52, and a second shell protection cavity opening 93 communicating with the second shell protection cavity 92; the first shell opening 81 and / or the second shell opening 91 are provided with a sealing member; the first shell protection cavity opening 83 is located on a side away from the second shell 9; and the second shell protection cavity opening 93 is located on a side away from the first shell 8.

[0065] Furthermore, the second shell opening is for the cathode conductive end to extend out, and the first shell opening is for the anode conductive end to extend out. The second shell protection cavity and the first shell protection cavity provide accommodation space for the cathode conductive end and the anode conductive end, respectively, providing a convenient channel for the connection between the reaction component and the external power supply, ensuring that the current can be stably and smoothly input into the cathode reaction component and the anode reaction component to maintain the continuous generation of hydrogen peroxide. The seal further enhances the reliability of the connection. On the one hand, the seal can prevent the liquid in the electrolyte chamber from overflowing into the external space. On the other hand, it also effectively prevents external impurities such as water vapor and dust from entering the electrolyte chamber through the opening, avoiding problems such as poor contact or short circuit of the conductive end that affect the normal operation of the hydrogen peroxide generation module, and ensuring the electrical safety of the entire electrolytic reaction process.

[0066] Additionally, in some embodiments, the opening of the first shell protective cavity is disposed on a side away from the second shell, and the opening of the second shell protective cavity is disposed on a side away from the first shell, thereby further reducing the possibility of entanglement between different power connection terminals, and also reducing the risk of external foreign matter entering through the opening of the first shell protective cavity or the opening of the second shell protective cavity and interfering with the conductive end, thereby ensuring that the electrolytic reaction of the hydrogen peroxide generating module proceeds continuously and stably, thereby providing a guarantee for the stable generation of hydrogen peroxide solution by the oral irrigator.

[0067] like Figures 2 to 4 The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide shown in the figure, the pump body assembly 12 includes a driving member, a pressure assembly 122 connected to the driving member and the water outlet assembly 13, the housing 10 is provided with a fixed bracket 15, the fixed bracket 15 is provided with a fixed bracket cavity for accommodating the driving member, one side of the fixed bracket 15 is connected to the hydrogen peroxide generating module 1, one side of the fixed bracket 15 is connected to the circuit board assembly 14, the water outlet assembly 13 includes a nozzle 131 connected to the outside of the housing 10, and a water outlet pipe 132 respectively connected to the nozzle 131 and the pressure assembly 122, and a reaction module connecting pipe 16 is connected between the liquid outlet 3 and the water outlet pipe 132. The circuit board assembly can timely control the voltage and flow rate of the hydrogen peroxide generating module, and at the same time, by controlling the frequency of generating different pressures of the pump body assembly, water columns with different flushing pressures can be obtained, thereby cleaning the oral cavity.

[0068] Optionally, in some embodiments, the driving member is a motor or a solenoid valve, which can drive the movement of the pressure component to generate different pressures at the water outlet component position.

[0069] Optionally, in some embodiments, the driver and the piston can cooperate to drive the piston to reciprocate in the direction of the cavity opening of the water outlet pipe, and the pump membrane set by silicone is switched between a blocked state and an open state and set in the water outlet pipe. When the movement speed of the driver is changed, the water column will rush out to the nozzle at different frequencies.

[0070] Optionally, in some embodiments, the electromagnetic valve can be coordinated with a pump membrane set with silicone so that water can be discharged from the water outlet pipe in a pulsed form.

[0071] Preferably, the driver is responsible for driving the pressure assembly to generate different pressures. The liquid in the water tank assembly is extracted into the hydrogen peroxide generating module, and the pressure assembly applies pressure to the water flow transported by the water outlet pipe to ensure the stable pulse water flow pressure required for flushing. The driver and the pressure assembly work together to meet the regular pressure requirements for daily cleaning of the teeth and gingival sulcus, and can also be mixed with the hydrogen peroxide solution to flexibly adjust the pressure according to the user's oral condition, so that the water flow carrying hydrogen peroxide can more efficiently impact every corner of the mouth, achieving the dual effects of deep cleaning and sterilization.

[0072] Furthermore, the water pump, hydrogen peroxide generating module and circuit board assembly are connected together by setting a fixed bracket. This compact integrated design greatly saves space in the shell, making the overall structure of the water flosser more streamlined and easy to carry. The fixed bracket not only bears the weight of the water pump and the operating vibration, but also buffers the slight shaking that may occur when the hydrogen peroxide generating module is working, as well as the slight thermal expansion and contraction of the circuit board assembly during the power-on process. The various components support each other and work together through the fixed bracket, so that the internal structure of the water flosser remains stable during frequent use and movement, reducing the risk of failure caused by loose and displaced components, extending the service life, and continuously providing users with a reliable oral cleaning experience.

[0073] In addition, the nozzle of the water outlet assembly is directly connected to the outside of the shell with the water outlet pipe, ensuring that the water flow can reach the oral cleaning area accurately and smoothly. The liquid outlet and the water outlet pipe are connected through the reaction module connecting pipe, so that the hydrogen peroxide solution can be mixed with the water flow before it is sprayed out of the nozzle, ensuring that the sterilizing liquid is evenly mixed each time, maximizing the sterilization and cleaning efficiency.

[0074] like Figures 2 to 4 The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide shown in the figure has a power supply component 17 connected to one side of the hydrogen peroxide generating module 1, and the hydrogen peroxide generating module 1 is provided with a first supporting end 101 for supporting the power supply component 17 and a first limiting end 102 for limiting the power supply component 17.

[0075] Furthermore, the power supply assembly is directly connected to one side of the hydrogen peroxide generation module, thereby shortening the length of the power supply line, reducing the loss during the power transmission process, and ensuring stable and sufficient power support for the hydrogen peroxide generation module. This enables the cathode reaction assembly and the anode reaction assembly to continuously and efficiently perform electrolysis reactions and stably generate hydrogen peroxide, without affecting the output efficiency of the sterilizing liquid due to power supply fluctuations.

[0076] Specifically, the first supporting end and the first limiting end provided on the hydrogen peroxide generating module provide precise installation and positioning for the power supply assembly. On the one hand, the first supporting end can reliably bear the weight of the power supply assembly to prevent the line from loosening or poor contact due to the pulling and shaking of gravity; on the other hand, the first limiting end constrains from the side to prevent the power supply assembly from shifting during the movement and use of the water flosser, effectively protecting the power supply assembly from collision damage, while ensuring the stability of the entire circuit system and extending the service life of the water flosser.

[0077] In addition, the power supply assembly is combined with the hydrogen peroxide generating module, and cooperates with the pump body assembly, circuit board assembly, etc. connected to the fixed bracket to form an internal structure with a reasonable layout and high space utilization. It not only reduces unnecessary space occupation and makes the appearance of the water flosser more compact and portable, but also facilitates the installation and debugging of components during the production and assembly process, thereby improving production efficiency.

[0078] Optionally, in some embodiments, the first limiting end is made of plastic material, and has an arc-shaped structure that fits and snaps onto the outside of the circular power supply assembly.

[0079] like Figures 2 to 4 The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide shown, the hydrogen peroxide generating module 1 is provided with a first positioning end 103 for positioning one end of the power supply assembly 17, and the fixed bracket 15 is provided with a second positioning end 151 for positioning the other end of the power supply assembly 17. Furthermore, the first positioning end of the hydrogen peroxide generating module and the second positioning end of the fixed bracket are positioned from both ends of the power supply assembly, respectively, forming an all-round constraint. For example, during daily carrying and shaking, or high-frequency vibration during water flossing, the power supply assembly can be firmly fixed in a predetermined position, reducing the risk of displacement. When the power supply assembly is firmly fixed, the circuit will no longer be pulled or twisted due to the shaking of the assembly, reducing the probability of circuit breakage and short circuit failure. This not only ensures the immediate use safety of the water flosser, avoids the risk of accidental power failure or leakage caused by line problems, but also reduces the inconvenience and cost expenditure caused by line maintenance.

[0080] In addition, during the assembly process, the operator can quickly and accurately install the power supply component according to the first positioning end and the second positioning end without repeatedly adjusting the position, which greatly shortens the assembly time, improves the overall efficiency of the production line, and reduces production costs.

[0081] like Figures 2 to 4The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide shown, the fixed bracket 15 is provided with a first fixed portion 152, and a first clamping portion 153, the hydrogen peroxide generating module 1 is provided with a second fixed portion 104 connected with the first fixed portion 152, and a second clamping portion 105 connected with the first clamping portion 153. Further, in the daily use, frequent start and stop, and possible collision and bumping of the water flosser, the coordinated connection between the first fixed portion and the second fixed portion, and the clamping mode of the first clamping portion and the second clamping portion can ensure that the hydrogen peroxide generating module and the fixed bracket are tightly fitted and firmly connected, and there will be no loosening, displacement, etc. The tight connection structure effectively disperses the vibration energy generated when the water flosser is running. Whether it is the vibration caused by the operation of the water pump or the slight vibration of the hydrogen peroxide generating module during the electrolysis process, it can be absorbed and buffered by the firm connection between the fixed bracket and the hydrogen peroxide generating module, so as to avoid the vibration from being transmitted and amplified inside the water flosser, thereby reducing the noise generated by the resonance of the components.

[0082] In addition, when production and assembly are required, this efficient connection method can increase assembly speed, improve production line capacity, and reduce production costs. When the hydrogen peroxide generation module or the components associated with the fixed bracket need to be inspected and maintained, maintenance personnel can easily separate the first clamping part and the second clamping part, the first fixing part and the second fixing part, and quickly and non-destructively disassemble the hydrogen peroxide generation module, which is convenient for troubleshooting, parts replacement, etc., and shortens maintenance time.

[0083] Optionally, in some embodiments, the first fixing portion and the second fixing portion are aligned by means of a connecting column and connected by means of a fastener.

[0084] Optionally, in some embodiments, the first fixing portion and the second fixing portion are aligned in the form of connecting columns and connected using fasteners.

[0085] Optionally, in some embodiments, the first fixing portion and the second fixing portion are connected by magnetic attraction, and may be connected by a card block and a card slot.

[0086] Optionally, in some embodiments, the first engaging portion is in the form of a slot, and the second engaging portion is in the form of a block engaged in the slot.

[0087] Optionally, in some other embodiments, the first engaging portion is in the form of a card block, and the second engaging portion is in the form of a card slot to cooperate with the card block.

[0088] A method for controlling a water flosser, comprising the water flosser with the function of instantly adjusting the concentration of hydrogen peroxide as described above, comprising the following steps: S1. Start the water flosser, select the desired hydrogen peroxide concentration mode, start the pump assembly 12, and the solution in the water tank assembly 11 enters the hydrogen peroxide generating module 1 to react and obtain a hydrogen peroxide solution; hydrogen peroxide, as an effective antibacterial agent, can effectively reduce the number of bacteria in the oral cavity, improve the oral environment, and prevent oral diseases. Users can choose a suitable hydrogen peroxide concentration mode according to their personal oral health conditions and needs, which not only improves the flexibility of treatment, but also ensures that each use can achieve the best effect and meet the diverse needs of different users. By instantly adjusting the hydrogen peroxide concentration, the water flosser can provide efficient cleaning and sterilization effects while ensuring safety.

[0089] S2. The pump body component 12 drives the hydrogen peroxide solution to be discharged from the water outlet component 13 at a set frequency; by precisely controlling the generation and discharge of hydrogen peroxide, the water flosser can ensure the cleaning effect.

[0090] S3, the circuit board assembly 14 adjusts the voltage and flow rate to drive the instant adjustment of the hydrogen peroxide concentration. The control method of the present invention achieves instant adjustment of the hydrogen peroxide concentration by accurately adjusting the voltage and flow rate through the circuit board assembly. This intelligent control method not only improves the convenience of operation of the device, but also ensures the accuracy and stability of each use.

[0091] Specifically, the water flosser includes an external display panel electrically connected to the circuit board assembly, a power switch, and a gear control button. The power switch is a mechanical switch, and the gear control button has three modes. The water storage tank has a capacity of 200-500 ml, and the nozzle is a detachable multi-nozzle linear nozzle. The flow rate of the pump assembly can be adjusted between 15-100 ml / min.

[0092] The circuit board assembly is connected to the various components of the water flosser to control and monitor the water pump, hydrogen peroxide generation module and other functional components to ensure that the components work together. Among them, the controller on the circuit board assembly has an intelligent control function, which can automatically adjust the concentration of hydrogen peroxide and the water flow pressure and pulse frequency of the pump body according to the different cleaning modes selected by the user (such as gentle mode, standard mode, strong mode, etc.). For example, in the gentle mode, the control circuit reduces the hydrogen peroxide concentration to a lower level, while reducing the water flow pressure and pulse frequency to meet the needs of users with oral sensitivity; in the strong mode, the hydrogen peroxide concentration is increased, and the water flow pressure and pulse frequency are increased for deep cleaning and treatment of serious oral diseases. In addition, the control circuit can also monitor the water level in the water tank in real time. When the water level is too low, the operation of the hydrogen peroxide generation module is suspended to avoid dry burning and other situations, and remind the user to add water in time.

[0093] The hydrogen peroxide generation module can efficiently convert water or specific solutions into hydrogen peroxide at low voltage through electrochemical reactions. The hydrogen peroxide generation module is small in size, suitable for integration into the water flosser, and has good stability. By adjusting the power supply mode and water flow rate through the control circuit, the concentration of hydrogen peroxide can be accurately controlled to ensure its safety and effectiveness.

[0094] The nozzle is provided with multiple safety protection devices between the hydrogen peroxide generating module and the water storage tank. Preferably, a one-way valve is installed between each component to prevent water or hydrogen peroxide solution from flowing back to the hydrogen peroxide generating module to avoid damaging the internal components of the hydrogen peroxide generating module. Among them, an overpressure protection device is also provided at the connection of the pipelines of each component, which automatically releases the pressure when the system pressure exceeds the safety threshold to prevent the water flosser from being damaged or causing harm to the user due to excessive pressure. Among them, a temperature sensor and an overheating protection circuit are also provided around the hydrogen peroxide electrochemical reaction module. When the temperature rises abnormally during the reaction process, it can automatically identify and cut off the power supply in time and vibrate to remind, to prevent safety accidents caused by overheating.

[0095] Among them, the water flosser with the function of instantly adjusting the concentration of hydrogen peroxide has a specific working principle. After the user starts the water flosser, the water pump delivers water to the flushing nozzle. At the same time, the intelligent control system starts the electrochemical hydrogen peroxide generation module to produce a certain concentration of hydrogen peroxide solution. The generated hydrogen peroxide solution is mixed with the reaction water to form a flushing liquid with bactericidal ability. Then the mixed flushing liquid passes through the nozzle and is sprayed onto the tooth surface and tooth gaps in a high-pressure pulsed water flow, killing bacteria and biofilms while cleaning. Among them, the intelligent controller monitors the operating status of the equipment in real time to ensure safety and efficiency.

[0096] Specifically, the hydrogen peroxide concentration mode includes a first treatment mode, a second treatment mode, and a third treatment mode. The first treatment mode is used to provide sterilization and cleaning effects and can improve the oral environment. The second mode is used to clean food residues and dental plaque between teeth. The third mode is used to clean the gaps between teeth.

[0097] Among them, the flow rates corresponding to the first processing mode, the second processing mode, and the third processing mode are 15-35 ml / min, 45-60 ml / min, and 80-120 ml / min, respectively.

[0098] In specific applications, the concentration of hydrogen peroxide in the water flosser can be adjusted through the intelligent controller, and its specific operating logic is: When the water flosser is started, the controller on the circuit board assembly controls the water pump to draw tap water into the hydrogen peroxide generation module, and at the same time applies a certain voltage between the electrodes, and realizes instant concentration adjustment by precisely adjusting the voltage and current between the electrodes and the flow rate of the water pump and other parameters. When the water flow rate is low, the water flow in the hydrogen peroxide generation module is slow, and the water stays in the hydrogen peroxide generation module for a longer time, which is conducive to the generation of hydrogen peroxide. To ensure that the concentration of hydrogen peroxide is at the set value, the controller can intelligently reduce the electrode voltage and current; conversely, when the water flow rate is high, the water stays in the hydrogen peroxide generation module for a shorter time, and the generation of hydrogen peroxide slows down. To ensure that the concentration of hydrogen peroxide is constant, the controller can increase the electrode voltage and current in real time, thereby realizing precise adjustment of the hydrogen peroxide concentration within a wider water flow range.

[0099] The spoiler bracket is made of an insulating hard material, including but not limited to hard plastic, glassy carbon, composite materials, etc. The spoiler bracket can physically isolate the cathode electrode and the anode electrode in the hydrogen peroxide generating module, and can change the flow direction of the liquid inside the electrochemical generating module, so that the internal liquid can form turbulence, which is beneficial to the discharge of hydrogen peroxide generated on the cathode surface and enhances the performance of the reactor.

[0100] The first shell and the second shell are mainly made of high-strength, corrosion-resistant and chemically stable materials, such as special ceramics or high-strength plastics. The water tank is used to store flushing water, and its material is non-toxic and corrosion-resistant plastic. The liquid inlet of the first shell can be connected to the water tank through a hose, and the liquid outlet can be connected to a water pump. Through the action of the water pump, the reaction water can be pumped from the water tank into the hydrogen peroxide generation module. After the immediate reaction produces hydrogen peroxide, it can be discharged from the liquid outlet to the water flosser nozzle to achieve the function of sterilizing the oral cavity. The anode area of ​​the hydrogen peroxide generation module is 1.5cm×3cm, the cathode area is 1.5cm×4cm, and the electrode spacing is 2.5mm.

[0101] Specifically, in the first treatment mode, the water storage tank capacity is 300 ml, the reaction voltage is 8 V, and at 20 ml / min, the concentration of hydrogen peroxide can be maintained at about 5 ppm.

[0102] Specifically, in the second treatment mode, the water storage tank capacity is 300 ml, the reaction voltage is 12 V, and at 50 ml / min, the concentration of hydrogen peroxide can be maintained at about 5 ppm.

[0103] Specifically, in the third treatment mode, the water storage tank capacity is 300 ml, the reaction voltage is 18 V, and at 100 ml / min, the concentration of hydrogen peroxide can be maintained at about 5 ppm.

[0104] Embodiment 1 like Figures 1 to 9 The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide shown in the figure comprises a shell 10, wherein the shell 10 is provided with a water tank assembly 11, a hydrogen peroxide generating module 1 connected to the water tank assembly 11, a pump body assembly 12, and a water outlet assembly 13 respectively connected to the hydrogen peroxide generating module 1 and the pump body assembly 12, wherein the hydrogen peroxide generating module 1 is used to convert the liquid in the water tank assembly 11 into a hydrogen peroxide solution, and the pump body assembly 12 drives the hydrogen peroxide solution to be discharged from the water outlet assembly 13 after being started. The present invention integrates the hydrogen peroxide generating module 1 into the oral irrigator, so the user does not need to prepare hydrogen peroxide solution separately, thus eliminating the tedious preparation steps. The user adds an appropriate amount of electrolyte to the water tank assembly 11, and after starting the oral irrigator, the internal hydrogen peroxide generating module 1 can instantly generate a hydrogen peroxide solution of appropriate concentration for oral rinsing, thus avoiding the situation where the pre-prepared solution is easily affected by light and temperature and becomes ineffective. The present invention controls the generation rate of hydrogen peroxide through the circuit board assembly 14, and uses the pump body assembly 12 to drive the hydrogen peroxide solution to be discharged from the water outlet assembly 13, so that the hydrogen peroxide solution can penetrate deep into the blind spots of oral cleaning such as the gaps between teeth and gingival sulci, providing strong protection for oral health while efficiently cleaning and sterilizing.

[0105] Embodiment 2 Embodiment 2 Based on Embodiment 1, the following implementation is also provided: the hydrogen peroxide generation module 1 is provided with a liquid inlet 2 connected to the water tank assembly 11, a liquid outlet 3 connected to the water outlet assembly 13, an electrolyte chamber 4 respectively connected to the liquid inlet 2 and the liquid outlet 3, a cathode reaction assembly 5 located in the electrolyte chamber 4, and an anode reaction assembly 6, wherein the cathode reaction assembly 5 is used to generate hydrogen peroxide. By providing the hydrogen peroxide generation module 1, the present invention allows the user to inject a suitable liquid into the electrolyte chamber 4 from the liquid inlet 2 without additionally preparing a separate hydrogen peroxide solution, thereby enabling the cathode reaction assembly 5 to generate a hydrogen peroxide solution immediately, thereby avoiding the situation where the concentration changes and the sterilization effect deteriorate due to long-term storage, and ensuring that the expected sterilization and disinfection effect can be achieved. The cathode reaction assembly 5 includes a cathode electrode 51, a cathode conductive end 52 connected to the cathode electrode 51, and a cathode electrode catalytic layer provided on the surface of the cathode electrode 51, and the anode reaction assembly 6 includes an anode electrode 61 and an anode conductive end 62 connected to the anode electrode 61.

[0106] The anode electrode 61 includes one of the inert conductive materials resistant to electrochemical corrosion, such as a noble metal oxide coating electrode, BDD, and a graphene coating electrode. The cathode electrode 51 is preferably a material with a three-dimensional structure, including one of foamed nickel, porous graphite plate, sintered titanium, activated carbon felt, and carbon paper. The cathode catalyst is one of the nano non-metallic materials or inert metal materials with a certain concentration of boron, nitrogen, carbon, etc.

[0107] During the electrolytic preparation of hydrogen peroxide, oxygen can diffuse to the surface of the cathode electrode 51. During the electrochemical reaction, a reduction reaction of oxygen occurs on the surface of the cathode electrode 51 to generate hydrogen peroxide: O 2 + 2H + +2e - → H 2 O 2 ; At the same time, water oxidation reaction occurs on the surface of the anode electrode 61 to generate oxygen: 2H 2 O → O 2 + 4H + +4e - ; The overall reaction formula of the entire electrolysis process is 2H 2 O + O 2 →2H 2 O 2 .

[0108] The present invention uses the cathode reaction component 5 to generate hydrogen peroxide, and the anode reaction component 6 is conducive to the rapid transfer of oxygen and participation in the cathode reaction, thereby promoting the reaction. Compared with the method of generating hydrogen peroxide in the low-oxygen environment of the anode, the present invention can improve the continuous preparation efficiency of hydrogen peroxide.

[0109] Embodiment 3 Embodiment 3 Based on Embodiment 1, the following implementation methods are also provided: The spoiler assembly 7 is provided with a first spoiler portion 71 and a second spoiler portion 72 respectively located in the electrolyte chamber 4, the first spoiler portion 71 is provided with a first spoiler portion opening 711 for liquid to pass through, and the second spoiler portion 72 is provided with a second spoiler portion opening 721 for liquid to pass through, and the extension directions of the first spoiler portion 71 and the second spoiler portion 72 respectively intersect with the connection directions of the liquid inlet 2 and the liquid outlet 3.

[0110] Embodiment 4 Implementation 4, based on implementation 3, also has the following implementation mode: the spoiler assembly 7 is provided with a spoiler bracket 73 connecting the first spoiler portion 71 and the second spoiler portion 72, the spoiler bracket 73 is provided with a bracket inner cavity 730, a spoiler first opening 731 connected to the bracket inner cavity 730 and close to the liquid inlet 2, and a spoiler second opening 732 connected to the bracket inner cavity 730 and close to the liquid outlet 3.

[0111] Embodiment 5 Implementation 5, based on implementation example 1, also has the following implementation mode: the hydrogen peroxide generating module 1 includes a first shell 8 and a second shell 9, the liquid inlet 2 and the liquid outlet 3 are both located in the first shell 8, the first shell 8 is provided with a first shell mounting portion 80, the second shell 9 is provided with a second shell matching portion 90, the first shell mounting portion 80 is matched and connected with the second shell matching portion 90, so that the first shell 8 and the second shell 9 enclose the electrolyte chamber 4.

[0112] Optionally, in some embodiments, the first shell mounting portion and the second shell matching portion can be connected by one or more combinations of snap connection, fastener connection, threaded connection, magnetic connection, mortise and tenon connection, groove connection, etc. Specifically, in this embodiment, the first shell mounting portion is a groove, and the second shell matching portion is a protrusion, and the connection between the first shell and the second shell is achieved by snap connection.

[0113] Specifically, in some other embodiments, the first shell mounting portion is a connecting step portion, and the second shell matching portion is a snap-fit ​​portion, and the connection between the first shell and the second shell is achieved through snap-fit ​​connection.

[0114] Embodiment 6 Implementation 6, based on implementation examples 4 and 5, also has the following implementation methods: one side of the anode reaction component 6 is connected to the bottom of the first shell 8, one side of the cathode reaction component 5 is connected to the bottom of the second shell 9, the spoiler assembly 7 is abutted against the other side of the cathode reaction component 5 and the other side of the anode reaction component 6, the first spoiler 71 and the second spoiler 72 are arranged in parallel, the first spoiler 71 and the second spoiler 72 are both L-shaped, and the first spoiler 71 and the second spoiler 72 are respectively abutted against the cathode electrode 51 and the anode electrode 61.

[0115] Embodiment 7 Embodiment 7, based on embodiment 6, further comprises the following implementation manner: the first shell 8 is provided with a first shell opening 81 for the anode conductive end 62 to extend out, a first shell protection cavity 82 for accommodating the anode conductive end 62, and a first shell protection cavity opening 83 communicating with the first shell protection cavity 82; the second shell 9 is provided with a second shell opening 91 for the cathode conductive end 52 to extend out, a second shell protection cavity 92 for accommodating the cathode conductive end 52, and a second shell protection cavity opening 93 communicating with the second shell protection cavity 92; the first shell protection cavity opening 83 is located on a side away from the second shell 9, and the second shell protection cavity opening 93 is located on a side away from the first shell 8.

[0116] Embodiment 8 Embodiment 8 Based on Embodiment 7, the following implementation is further provided: the first shell opening 81 and the second shell opening 91 are provided with a seal. Optionally, in some embodiments, when the second shell is located at the upper side during use and the electrolyte does not contact the second shell opening, only the first shell opening 81 is provided with a seal. Optionally, in some embodiments, when the first shell is located at the upper side during use and the electrolyte does not contact the first shell opening, only the second shell opening 91 is provided with a seal.

[0117] Embodiment 9 Embodiment 9, based on Embodiment 4 and Embodiment 5, further has the following implementation manner: the first shell 8 is provided with a positioning portion 82 for limiting the anode reaction component 6, the cathode electrode 51 and the anode electrode 61 are both arranged in a flat plate, the area of ​​the anode electrode 61 is smaller than the area of ​​the cathode electrode 51, the area of ​​the anode electrode 61 is smaller than the bottom area of ​​the bracket inner cavity 730, the area of ​​the cathode electrode 51 is larger than the bottom area of ​​the bracket inner cavity 730, and the outer side of the spoiler bracket 73 is provided with a spoiler bracket limiting portion 733 abutting against the inner wall of the first shell 8.

[0118] Embodiment 10 Embodiment 10, based on Embodiment 4 and Embodiment 5, further has the following implementation manner: the cathode reaction component 5 is close to the side of the liquid inlet 2, the liquid inlet 2 and the liquid outlet 3 are relatively arranged on both sides of the first shell 8, the first opening 731 of the spoiler and the second opening 732 of the spoiler are relatively arranged, the first spoiler opening 711 and the second spoiler opening 721 are staggered and relatively arranged, and the first spoiler opening 711 and the second spoiler opening 721 are both close to the anode electrode 61.

[0119] Embodiment 11 Embodiment 11 Based on Embodiment 2, the following implementation is also provided: the housing 10 is provided with a circuit board assembly 14 electrically connected to the hydrogen peroxide generating module 1 and the pump assembly 12 respectively, the pump assembly 12 includes a driving member, a pressure assembly 122 connected to the driving member and the water outlet assembly 13, the housing 10 is provided with a fixing bracket 15, the fixing bracket 15 is provided with a fixing bracket cavity for accommodating the driving member, one side of the fixing bracket 15 is connected with the hydrogen peroxide generating module 1, one side of the fixing bracket 15 is connected with the circuit board assembly 14, the water outlet assembly 13 includes a nozzle 131 connected to the outside of the housing 10, and a water outlet pipe 132 respectively connected to the nozzle 131 and the pressure assembly 122, and a reaction module connecting pipe 16 is connected between the liquid outlet 3 and the water outlet pipe 132. The driving member is a motor, which cooperates with a turbine member, a piston, and a silicone pump membrane to make the liquid burst out.

[0120] Embodiment 12 The difference between the twelfth embodiment and the eleventh embodiment is that the driving element is a solenoid valve.

[0121] Embodiment 13 Example 13, based on Example 12, further has the following implementation manner: a power supply component 17 is connected to one side of the hydrogen peroxide generating module 1, and the hydrogen peroxide generating module 1 is provided with a first supporting end 101 for supporting the power supply component 17 and a first limiting end 102 for limiting the power supply component 17.

[0122] Embodiment 14 Embodiment 14 is based on Embodiment 12 and further has the following implementation modes: The hydrogen peroxide generating module 1 is provided with a first positioning end 103 for positioning one end of the power supply assembly 17 , and the fixing bracket 15 is provided with a second positioning end 151 for positioning the other end of the power supply assembly 17 .

[0123] Embodiment 15 Embodiment 15, based on Embodiment 12, further has the following implementation mode: the water tank assembly 11 includes a water tank located in the housing 10, a water tank cover 18 covering the water tank, and a water pump for conveying liquid to the hydrogen peroxide generating module 1, the water pump is located between the water tank and the hydrogen peroxide generating module 1, the fixing bracket 15 is provided with a first fixing portion 152, and a first clamping portion 153, the hydrogen peroxide generating module 1 is provided with a second fixing portion 104 connected with the first fixing portion 152, and a second clamping portion 105 connected with the first clamping portion 153. The first fixing portion 152 and the second fixing portion 104 are aligned in the form of a connecting column and connected by a fastener. The first clamping portion 153 is in the form of a card slot, and the second clamping portion 105 is in the form of a card block and is clamped in the card slot.

[0124] Embodiment 16 The difference between the sixteenth embodiment and the fifteenth embodiment is that the water pump is located between the hydrogen peroxide generating module 1 and the water outlet assembly 13 .

[0125] Embodiment 17 Embodiment 17 Based on the above embodiments, there is also the following implementation method: a method for controlling a water flosser, comprising the water flosser with the function of instantly adjusting the concentration of hydrogen peroxide as described above, the steps comprising: S1, starting the water flosser, selecting the desired hydrogen peroxide concentration mode, starting the pump assembly 12, and the solution of the water tank assembly 11 entering the hydrogen peroxide generating module 1 to react and obtain a hydrogen peroxide solution; S2, the pump body component 12 drives the hydrogen peroxide solution to be discharged from the water outlet component 13 according to the set frequency; S3. The circuit board assembly 14 adjusts the voltage and flow rate to drive the hydrogen peroxide concentration to be adjusted instantly.

[0126] The water flosser includes an external display panel electrically connected to the circuit board assembly 14, a power switch, and a gear control button. The power switch is a mechanical switch, and the gear control button has three modes. The water tank has a capacity of 200-500 ml, and the nozzle is a detachable multi-nozzle linear nozzle. The flow rate of the pump assembly can be adjusted between 15-100 ml / min. The control circuit can also monitor the water level in the water tank in real time. When the water level is too low, the operation of the hydrogen peroxide generation module is suspended to avoid dry burning and other situations, and remind the user to add water in time.

[0127] A one-way valve is installed between each component to prevent water or hydrogen peroxide solution from flowing back into the hydrogen peroxide generating module and to avoid damaging the internal components of the hydrogen peroxide generating module. An overpressure protection device is also provided at the connection of each component pipeline. When the system pressure exceeds the safety threshold, it automatically releases the pressure to prevent the water flosser from being damaged or causing harm to the user due to excessive pressure. A temperature sensor and an overheating protection circuit are also provided around the hydrogen peroxide electrochemical reaction module. When the temperature rises abnormally during the reaction process, it can automatically identify and cut off the power supply in time and vibrate to remind, to prevent safety accidents caused by overheating.

[0128] The circuit board assembly is connected to various components of the water flosser to control and monitor the water pump, hydrogen peroxide generation module and other functional components to ensure that the components work together. Among them, the controller on the circuit board assembly has an intelligent control function, which can automatically adjust the concentration of hydrogen peroxide and the water flow pressure and pulse frequency of the pump body according to the different cleaning modes selected by the user (such as gentle mode, standard mode, strong mode, etc.). For example, in the gentle mode, the control circuit reduces the hydrogen peroxide concentration to a lower level, while reducing the water flow pressure and pulse frequency to meet the needs of users with oral sensitivity; in the strong mode, the hydrogen peroxide concentration is increased, and the water flow pressure and pulse frequency are increased for deep cleaning and treatment of serious oral diseases. In addition, the hydrogen peroxide generation module can efficiently convert water or a specific solution into hydrogen peroxide at a low voltage through an electrochemical reaction. Among them, the hydrogen peroxide generation module is small in size, suitable for integration inside the water flosser, and has good stability. By adjusting the power supply mode and water flow rate by the control circuit, the concentration of hydrogen peroxide can be accurately controlled to ensure its safety and effectiveness.

[0129] The nozzle is provided with multiple safety protection devices between the hydrogen peroxide generating module and the water storage tank. Preferably, the water flosser with the function of instantly adjusting the concentration of hydrogen peroxide has a specific working principle that after the user starts the water flosser, the water pump delivers water to the flushing nozzle, and at the same time, the intelligent control system starts the electrochemical hydrogen peroxide generating module to produce a hydrogen peroxide solution of a certain concentration. The generated hydrogen peroxide solution is mixed with the reaction water to form a flushing liquid with bactericidal ability. Then the mixed flushing liquid passes through the nozzle and is sprayed onto the tooth surface and the gaps between the teeth in a high-pressure pulsed water flow, killing bacteria and biofilms while cleaning. Among them, the intelligent controller monitors the operating status of the equipment in real time to ensure safety and efficiency.

[0130] Specifically, the hydrogen peroxide concentration mode includes a first treatment mode, a second treatment mode, and a third treatment mode. The first treatment mode is used to provide sterilization and cleaning effects, which can improve the oral environment and is suitable for first-time use or for children, the elderly and other oral sensitive users. The second mode is used to clean food residues and dental plaque between teeth and is suitable for daily cleaning and washing of the oral cavity. The third mode is used to clean the gaps between teeth and is used for deep cleaning and treatment of serious oral diseases. The flow rates corresponding to the first treatment mode, the second treatment mode, and the third treatment mode are 15-35 ml / min, 45-60 ml / min, and 80-120 ml / min, respectively.

[0131] In specific applications, the concentration of hydrogen peroxide in the water flosser can be adjusted through the intelligent controller. The specific operation logic is as follows: when the water flosser is started, the controller provided on the circuit board assembly controls the water pump to draw tap water into the hydrogen peroxide generation module, and at the same time applies a certain voltage between the electrodes. The concentration is immediately adjusted by accurately adjusting the voltage and current between the electrodes and the flow rate of the water pump and other parameters. When the water flow rate is low, the water flow in the hydrogen peroxide generation module is slow, and the residence time of water in the hydrogen peroxide generation module is increased, which is conducive to the generation of hydrogen peroxide. To ensure that the concentration of hydrogen peroxide is at the set value, the controller can intelligently reduce the electrode voltage and current; conversely, when the water flow rate is high, the residence time of water in the hydrogen peroxide generation module is reduced, and the generation of hydrogen peroxide slows down. To ensure that the concentration of hydrogen peroxide is constant, the controller can increase the electrode voltage and current in real time, thereby achieving accurate adjustment of the concentration of hydrogen peroxide within a wide water flow range.

[0132] During the whole tooth flushing process, the microprocessor can realize the automatic stop function according to the monitoring time, and the tooth flushing time is internally set to 3 minutes. Optionally, in some embodiments, step S101 is further included, by presetting the concentration of hydrogen peroxide, so that the intelligent controller can automatically control the voltage and flow rate so that the hydrogen peroxide concentration meets the expectation.

[0133] Embodiment 18 Example 18 Based on the above examples, the following implementation methods are also provided: the spoiler bracket is made of insulating polytetrafluoroethylene material. The first shell and the second shell are mainly made of high-strength, corrosion-resistant and chemically stable polytetrafluoroethylene. The anode area of ​​the hydrogen peroxide generation module is 1.5cm×3cm, the anode adopts a platinum-titanium electrode, the cathode area is 1.5cm×4cm, the cathode electrode is sintered titanium, and the cathode electrode adopts the BN-doped mesoporous carbon catalyst prepared as above, and the electrode spacing is 2.5mm. Add 300mL of tap water to the water tank of the water irrigator, press the power switch of the water irrigator, select the operation mode of different gears, and under the action of the water pump, the water flow is drawn from the water tank of the water irrigator into the generation module, and then sprayed out through the nozzle. The concentration at the nozzle is tested with hydrogen peroxide test paper, and a sample is taken every 30s, for a total of 6 samples. In this embodiment, hydrogen peroxide is prepared under different flow rates of water flow, and 6 samples are continuously taken according to the sampling interval to determine the stability of hydrogen peroxide production by the hydrogen peroxide generation module under different flow rates.

[0134] Experiment 1: The reaction water is tap water, the anode area of ​​the hydrogen peroxide generation module is 1.5cm×3cm, the cathode area is 1.5cm×4cm, the electrode spacing is 2.5mm, and the water flosser gear is: gentle gear-first treatment mode, standard gear-second treatment mode, strong gear-third treatment mode. Specifically, in the first treatment mode, the water storage tank capacity is 300 ml, the reaction voltage is 8V, and at 20ml / min, the detection time is 30s, 60s, 90s, 120s, 150s, and 180s, which can keep the concentration of hydrogen peroxide at about 5ppm.

[0135] Experiment 2: The reaction water was tap water. In the second treatment mode, the water storage tank capacity was 300 ml, the reaction voltage was 12 V, and at 50 ml / min, the detection time was 30 s, 60 s, 90 s, 120 s, 150 s, and 180 s, which could keep the concentration of hydrogen peroxide at around 5 ppm.

[0136] Experiment 3: The reaction water is tap water. In the third treatment mode, the water storage tank capacity is 300 ml, the reaction voltage is 18V, and at 100ml / min, the detection time is 30s, 60s, 90s, 120s, 150s, and 180s, which can keep the concentration of hydrogen peroxide at about 5ppm. In this embodiment, when using 300mL of water for reaction, under different flow rates, the concentration of hydrogen peroxide produced by the hydrogen peroxide generation module of the present invention can be maintained at about 5ppm. The above embodiments show the actual application of water flossers with the function of instantly adjusting the concentration of hydrogen peroxide in different modes. Water flossers have the functional characteristics of flushing and sterilization, which can meet the diverse oral care needs of users.

[0137] Embodiment 19 The difference between Example 19 and Example 18 is that the spoiler bracket is made of glassy carbon material. The first shell and the second shell are made of silicon nitride ceramics. The anode area of ​​the hydrogen peroxide generation module is 1.5cm×3cm, the anode adopts a boron-doped diamond coating electrode, the cathode area is 1.5cm×4cm, the cathode electrode is a porous graphite plate, and the cathode adopts a metal organic framework derived carbon catalyst prepared as above, and the electrode spacing is 2.0mm. The concentration of hydrogen peroxide is pre-set to 6ppm, 450mL of tap water is added to the water tank of the water irrigator, the power switch of the water irrigator is pressed, and the operation mode of different gears is selected. Under the action of the water pump, the water flow is drawn into the generation module from the water tank of the water irrigator, and then sprayed out through the nozzle. The concentration at the nozzle is tested with hydrogen peroxide test paper, and a sample is taken every 30s, for a total of 6 samples. In this embodiment, hydrogen peroxide is prepared under different flow rates of water flow, and 6 samples are continuously taken according to the sampling interval to determine the stability of hydrogen peroxide production by the hydrogen peroxide generation module under different flow rates.

[0138] Experiment 1: The reaction water is tap water, the anode area of ​​the hydrogen peroxide generating module is 1.5cm×3cm, the cathode area is 1.5cm×4cm, the electrode spacing is 2.0mm, and the water flosser gear is: gentle gear-first treatment mode, standard gear-second treatment mode, strong gear-third treatment mode. Specifically, in the first treatment mode, the water storage tank capacity is 450 ml, the reaction voltage is 8V, and at 35ml / min, the detection time is 30s, 60s, 90s, 120s, 150s, and 180s, which can keep the concentration of hydrogen peroxide at about 6ppm.

[0139] Experiment 2: The reaction water was tap water. In the second treatment mode, the water storage tank capacity was 450 ml, the reaction voltage was 12 V, and at 60 ml / min, the detection time was 30 s, 60 s, 90 s, 120 s, 150 s, and 180 s, which could keep the concentration of hydrogen peroxide at around 6 ppm.

[0140] Experiment 3: The reaction water is tap water. In the third treatment mode, the water storage tank capacity is 450 ml, the reaction voltage is 18V, and at 120 ml / min, the detection time is 30s, 60s, 90s, 120s, 150s, and 180s, which can keep the concentration of hydrogen peroxide at about 6ppm. In this embodiment, when using 450mL of water for reaction, under different flow rates, the concentration of hydrogen peroxide generated by the hydrogen peroxide generation module of the present invention can be maintained at about the preset 6ppm. The above embodiments show the actual application of the water flosser with the function of instantly adjusting the concentration of hydrogen peroxide in different modes. The water flosser has the functional characteristics of flushing and sterilization, which can meet the diverse oral care needs of users.

Claims

1. A water flosser with a function of instantly adjusting the concentration of hydrogen peroxide, comprising a housing (10), characterized in that: The housing (10) is provided with a water tank assembly (11), a hydrogen peroxide generating module (1) connected to the water tank assembly (11), a pump assembly (12), a water outlet assembly (13) respectively connected to the hydrogen peroxide generating module (1) and the pump assembly (12), and a circuit board assembly (14) respectively electrically connected to the hydrogen peroxide generating module (1) and the pump assembly (12); the hydrogen peroxide generating module (1) is used to convert liquid in the water tank assembly (11) into a hydrogen peroxide solution; and the pump assembly (12) drives the hydrogen peroxide solution to be discharged from the water outlet assembly (13) after being started.

2. The water flosser with instant adjustment function of hydrogen peroxide concentration according to claim 1, characterized in that: The hydrogen peroxide generating module (1) is provided with a liquid inlet (2) connected to the water tank assembly (11), a liquid outlet (3) connected to the water outlet assembly (13), an electrolyte chamber (4) respectively connected to the liquid inlet (2) and the liquid outlet (3), a cathode reaction assembly (5) located in the electrolyte chamber (4), and an anode reaction assembly (6), wherein the cathode reaction assembly (5) is used to generate hydrogen peroxide.

3. The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide according to claim 2, characterized in that: The hydrogen peroxide generating module (1) is provided with a spoiler assembly (7) for increasing the travel distance of the liquid. The spoiler assembly (7) is connected between the cathode reaction assembly (5) and the anode reaction assembly (6). The spoiler assembly (7) is provided with a first spoiler (71) and a second spoiler (72) respectively located in the electrolyte chamber (4). The first spoiler (71) is provided with a first spoiler opening (711) for liquid to pass through, and the second spoiler (72) is provided with a second spoiler opening (721) for liquid to pass through. The extension directions of the first spoiler (71) and the second spoiler (72) respectively intersect with the connection direction of the liquid inlet (2) and the liquid outlet (3).

4. The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide according to claim 3, characterized in that: The cathode reaction component (5) comprises a cathode electrode (51), a cathode conductive end (52) connected to the cathode electrode (51), and a cathode electrode catalyst layer arranged on the surface of the cathode electrode (51); and the anode reaction component (6) comprises an anode electrode (61) and an anode conductive end (62) connected to the anode electrode (61).

5. The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide according to claim 4, characterized in that: The spoiler assembly (7) is provided with a spoiler bracket (73) connected to the first spoiler portion (71) and the second spoiler portion (72); the spoiler bracket (73) is provided with a bracket inner cavity (730), a spoiler first opening (731) communicating with the bracket inner cavity (730) and close to the liquid inlet (2), and a spoiler second opening (732) communicating with the bracket inner cavity (730) and close to the liquid outlet (3).

6. The water flosser with instant adjustment function of hydrogen peroxide concentration according to claim 5, characterized in that: The hydrogen peroxide generating module (1) comprises a first shell (8) and a second shell (9); the liquid inlet (2) and the liquid outlet (3) are both located in the first shell (8); the first shell (8) is provided with a positioning portion (82) for limiting the anode reaction component (6); the area of ​​the anode electrode (61) is smaller than the area of ​​the cathode electrode (51); the area of ​​the cathode electrode (51) is larger than the bottom area of ​​the bracket inner cavity (730); the cathode reaction component (5) is close to the side of the liquid inlet (2); the liquid inlet (2) and the liquid outlet (3) are arranged on both sides of the first shell (8); the first opening (731) of the spoiler and the second opening (732) of the spoiler are arranged opposite to each other; the first spoiler opening (711) and the second spoiler opening (721) are arranged opposite to each other in a staggered manner; and the first spoiler opening (711) and the second spoiler opening (721) are both close to the anode electrode (61).

7. The water flosser with instant adjustment function of hydrogen peroxide concentration according to claim 2, characterized in that: The pump body assembly (12) comprises a driving member, a pressure assembly (122) connected to the driving member and the water outlet assembly (13); the fixed bracket (15) is provided with a fixed bracket cavity for accommodating the driving member; one side of the fixed bracket (15) is connected to a hydrogen peroxide generating module (1); one side of the fixed bracket (15) is connected to a circuit board assembly (14); the water outlet assembly (13) comprises a nozzle (131) connected to the outside of the housing (10), and a water outlet pipe (132) respectively connected to the nozzle (131) and the pressure assembly (122); and a reaction module connecting pipe (16) is connected between the liquid outlet (3) and the water outlet pipe (132).

8. The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide according to claim 7, characterized in that: One side of the hydrogen peroxide generating module (1) is connected to a power supply assembly (17); the hydrogen peroxide generating module (1) is provided with a first supporting end (101) for supporting the power supply assembly (17), a first limiting end (102) for limiting the power supply assembly (17), and a first positioning end (103) for positioning one end of the power supply assembly (17); and the fixing bracket (15) is provided with a second positioning end (151) for positioning the other end of the power supply assembly (17).

9. The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide according to claim 7, characterized in that: The water tank assembly (11) comprises a water storage tank located in a housing (10), a water tank cover (18) covering the water storage tank, and a water pump for conveying liquid to the hydrogen peroxide generating module (1); the fixing bracket (15) is provided with a first fixing portion (152) and a first clamping portion (153); the hydrogen peroxide generating module (1) is provided with a second fixing portion (104) cooperating with the first fixing portion (152) and a second clamping portion (105) clamping with the first clamping portion (153).

10. A method for controlling a water flosser, characterized in that: The water flosser with the function of instantly adjusting the concentration of hydrogen peroxide according to any one of claims 1 to 9 comprises the following steps: S1, the water flosser is started, the desired hydrogen peroxide concentration mode is selected, the pump assembly (12) is started, and the solution in the water tank assembly (11) enters the hydrogen peroxide generating module (1) to react and obtain a hydrogen peroxide solution; S2, the pump body component (12) drives the hydrogen peroxide solution to be discharged from the water outlet component (13) according to a set frequency; S3, the circuit board assembly (14) adjusts the voltage and flow rate to drive the hydrogen peroxide concentration to be adjusted instantly.

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