Hydrogen peroxide generation module and oral irrigator

Abstract

The utility model relates to hydrogen peroxide generation module technical field, specifically a kind of hydrogen peroxide generation module and oral irrigator, including shell, liquid inlet, liquid outlet, shell is equipped with electrolyte chamber, cathode reaction component, anode reaction component and spoiler assembly, cathode reaction component is used to generate hydrogen peroxide, spoiler assembly is connected between cathode reaction component and anode reaction component.The utility model is through setting hydrogen peroxide generation module, user only needs to inject suitable liquid from liquid inlet into electrolyte chamber, need not extra preparation separate hydrogen peroxide solution, can generate hydrogen peroxide solution in cathode reaction component instantaneously, avoid the situation that concentration change, sterilization effect is worse due to long-time storage, ensure that the expected sterilization and disinfection efficacy can be reached, the utility model is set through spoiler assembly, so that electrolyte flows fully between cathode reaction component and anode reaction component Reaction, improve the controllability of hydrogen peroxide generation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of hydrogen peroxide generating modules, specifically a hydrogen peroxide generating module and a dental flosser. Background Technology

[0002] Hydrogen peroxide, due to its strong oxidizing and bactericidal properties, has applications in household cleaning, oral healthcare, and nursing. For example, hydrogen peroxide solution is often used for wound rinsing and disinfection before and after oral surgery; some oral care products, such as mouthwash, also add low concentrations of hydrogen peroxide for daily oral disinfection and cleaning. However, most of these applications involve using pre-prepared hydrogen peroxide solutions directly, which presents problems such as fixed concentration and inconvenience in use.

[0003] Current methods of oral care using hydrogen peroxide, such as rinsing or using a standalone hydrogen peroxide solution, are cumbersome and require additional preparation and handling. Furthermore, high concentrations of hydrogen peroxide are corrosive and can damage the oral mucosa if used improperly. In addition, the concentration of pre-prepared hydrogen peroxide solutions can change during storage due to factors such as light and temperature, affecting their bactericidal effect, and the solution is not convenient to carry and store. Therefore, it is necessary to improve the methods of obtaining hydrogen peroxide and address its tendency to degrade, reducing additional preparation and handling while ensuring that its bactericidal effect meets expectations. Utility Model Content

[0004] To address the aforementioned technical problems of using a separate hydrogen peroxide solution for rinsing or washing, which is cumbersome, requires additional preparation and operation, and where high-concentration hydrogen peroxide is corrosive and may damage the oral mucosa if used improperly, and where pre-prepared hydrogen peroxide solutions are inconvenient to carry and store and easily become ineffective, thus affecting the bactericidal effect, the technical solution adopted by this utility model to solve these problems is as follows:

[0005] A hydrogen peroxide generating module includes a housing, an inlet and an outlet respectively communicating with the housing, an electrolyte chamber respectively communicating with the inlet and the outlet, a cathode reaction assembly and an anode reaction assembly respectively located in the electrolyte chamber, and a baffle assembly for increasing the liquid movement distance, the cathode reaction assembly for generating hydrogen peroxide, and the baffle assembly connected between the cathode reaction assembly and the anode reaction assembly.

[0006] Furthermore, in some embodiments of the present invention, the cathode reaction assembly includes a cathode electrode, a cathode conductive terminal connected to the cathode electrode, and a cathode electrode catalyst layer disposed on the surface of the cathode electrode; the anode reaction assembly includes an anode electrode and an anode conductive terminal connected to the anode electrode.

[0007] Furthermore, in some embodiments of this utility model, the baffle assembly is provided with a first baffle portion and a second baffle portion respectively located in the electrolyte chamber. The first baffle portion is provided with a first baffle portion opening for liquid to pass through, and the second baffle portion is provided with a second baffle portion opening for liquid to pass through. The extending directions of the first baffle portion and the second baffle portion intersect with the connection directions of the liquid inlet and the liquid outlet respectively.

[0008] Furthermore, in some embodiments of this utility model, the spoiler assembly is provided with a spoiler bracket connecting the first spoiler part and the second spoiler part. The spoiler bracket is provided with a bracket inner cavity, a first spoiler opening communicating with the bracket inner cavity and close to the liquid inlet side, and a second spoiler opening communicating with the bracket inner cavity and close to the liquid outlet side.

[0009] Furthermore, in some embodiments of this utility model, the housing includes a first housing and a second housing, the liquid inlet and the liquid outlet are both located in the first housing, the first housing is provided with a first housing mounting part, the second housing is provided with a second housing mating part, the first housing mounting part and the second housing mating part are mated and connected to each other so that the first housing and the second housing enclose the electrolyte chamber.

[0010] Furthermore, in some embodiments of this utility model, one side of the anode reaction assembly is connected to the bottom of the first housing, one side of the cathode reaction assembly is connected to the bottom of the second housing, the baffle assembly abuts against the other side of the cathode reaction assembly and the other side of the anode reaction assembly, the first baffle and the second baffle are arranged in parallel, both the first baffle and the second baffle are L-shaped, and the first baffle and the second baffle abut against the cathode electrode and the anode electrode respectively.

[0011] Furthermore, in some embodiments of this utility model, the first housing is provided with a first housing opening for the anode conductive end to extend out, a first housing protective cavity 82 for accommodating the anode conductive end, and a first housing protective cavity opening communicating with the first housing protective cavity; the second housing is provided with a second housing opening for the cathode conductive end to extend out, a second housing protective cavity for accommodating the cathode conductive end, and a second housing protective cavity opening communicating with the second housing protective cavity; the first housing opening and / or the second housing opening are provided with a sealing element; the first housing protective cavity opening is located on the side away from the second housing, and the second housing protective cavity opening is located on the side away from the first housing.

[0012] Furthermore, in some embodiments of this utility model, the first housing is provided with a positioning part that limits the anode reaction assembly, the cathode electrode and the anode electrode are both arranged in a flat plate, 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, and the outer side of the spoiler bracket is provided with a spoiler bracket limiting part that abuts against the inner wall of the first housing.

[0013] Furthermore, in some embodiments of this utility model, the cathode reaction assembly is located on the side near the liquid inlet, the liquid inlet and the liquid outlet are disposed opposite to each other on both sides of the first housing, the first opening and the second opening of the baffle plate are disposed opposite to each other, the first baffle opening and the second baffle opening are disposed opposite to each other, and both the first baffle opening and the second baffle opening are close to the anode electrode.

[0014] Another objective of this invention is to provide a dental flosser, including a hydrogen peroxide generating module as described above.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention, by incorporating a hydrogen peroxide generating module, allows users to simply inject a suitable liquid into the electrolyte chamber through the inlet, eliminating the need for a separate hydrogen peroxide solution. This enables the immediate generation of hydrogen peroxide solution within the cathode reaction assembly, preventing concentration changes and reduced sterilization effectiveness due to prolonged storage. Furthermore, the inclusion of a baffle assembly ensures ample flow and reaction of the electrolyte between the cathode and anode reaction assemblies, enhancing the controllability of the hydrogen peroxide generation rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a hydrogen peroxide generating module according to the present invention.

[0018] Figure 2 for Figure 1 AA sectional view.

[0019] Figure 3 This is an exploded view of a hydrogen peroxide generating module according to the present invention.

[0020] Figure 4 This is an exploded view of a hydrogen peroxide generating module according to the present invention.

[0021] Figure 5 This is a schematic diagram of the spoiler assembly of this utility model. Detailed Implementation

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0025] like Figures 1 to 5 The hydrogen peroxide generating module shown includes a housing 1, an inlet 2 and an outlet 3 respectively communicating with the housing 1, an electrolyte chamber 4 respectively communicating with the inlet 2 and the outlet 3, a cathode reaction assembly 5 and an anode reaction assembly 6 respectively located in the electrolyte chamber 4, and a baffle assembly 7 for increasing the liquid movement. The cathode reaction assembly 5 is used to generate hydrogen peroxide, and the baffle assembly 7 is connected between the cathode reaction assembly 5 and the anode reaction assembly 6.

[0026] This invention, by incorporating a hydrogen peroxide generating module, allows users to simply inject a suitable liquid into the electrolyte chamber through the inlet, eliminating the need for a separate hydrogen peroxide solution. This enables the immediate generation of hydrogen peroxide solution within the cathode reaction assembly, preventing concentration changes and reduced sterilization effectiveness due to prolonged storage. Furthermore, the inclusion of a baffle assembly ensures ample flow and reaction of the electrolyte between the cathode and anode reaction assemblies, enhancing the controllability of the hydrogen peroxide generation rate.

[0027] In the field of oral care, this invention, by setting up a hydrogen peroxide generating module, eliminates the need for users to prepare a separate hydrogen peroxide solution. Users simply inject a suitable liquid through the inlet, and the required hydrogen peroxide solution is instantly generated within the module. This avoids the corrosive risks associated with improper storage or misuse of pre-prepared high-concentration solutions. It not only simplifies the tedious preparation work before oral care but also prevents users from directly contacting high-concentration hydrogen peroxide concentrate. The produced hydrogen peroxide solution is suitable for oral care and does not damage the oral mucosa, reducing the possibility of adverse reactions such as burns and pain caused by improper operation. This meets users' needs for hydrogen peroxide for sterilization and disinfection.

[0028] In addition, traditional pre-prepared solutions are easily affected by external factors such as light and temperature and become ineffective. This invention, by setting up a hydrogen peroxide generating module, generates fresh hydrogen peroxide solution on the spot each time it is used, avoiding the situation where the concentration changes and the sterilization effect deteriorates due to long-term storage, and ensuring that the expected sterilization and disinfection effect can be achieved during use.

[0029] Specifically, this invention increases the liquid flow path by installing a baffle assembly inside the housing, allowing the electrolyte to flow and react fully between the cathode and anode reaction components. On the one hand, the baffle assembly improves the controllability of the hydrogen peroxide generation rate, enabling the production of a sufficient amount of solution to meet oral care needs in a short time. On the other hand, the baffle assembly promotes a more uniform and thorough reaction, resulting in a higher quality hydrogen peroxide solution and further enhancing the sterilization and disinfection effect.

[0030] Optionally, in some embodiments, during the electrolytic preparation of hydrogen peroxide, oxygen can diffuse to the cathode surface, where it undergoes a reduction reaction to generate hydrogen peroxide during the electrochemical reaction.

[0031] O2+ 2H + + 2e - → H2O2;

[0032] Simultaneously, an oxidation reaction occurs on the anode surface to generate oxygen:

[0033] 2H₂O → O₂ + 4H + + 4e - ;

[0034] The overall reaction of the entire electrolysis process is 2H2O + O2 → 2H2O2.

[0035] This invention uses a cathode reaction assembly to generate hydrogen peroxide, while the anode reaction assembly facilitates the rapid transfer of oxygen and its participation in the cathode reaction, thereby advancing the reaction. Compared to the method of generating hydrogen peroxide in a low-oxygen environment at the anode, this invention can improve the continuous production efficiency of hydrogen peroxide.

[0036] like Figures 2 to 5 The hydrogen peroxide generating module shown includes a cathode reaction assembly 5 comprising a cathode electrode 51, a cathode conductive terminal 52 connected to the cathode electrode 51, and a cathode electrode catalyst layer disposed on the surface of the cathode electrode 51. The anode reaction assembly 6 comprises an anode electrode 61 and an anode conductive terminal 62 connected to the anode electrode 61.

[0037] Furthermore, the anode electrode comprises inert conductive materials resistant to electrochemical corrosion, such as noble metal oxide coated electrodes, BDD, and graphene coated electrodes. The anode electrode exhibits excellent electrochemical oxidation catalytic activity and stability, effectively promoting the electrolysis of water. The cathode electrode is preferably a material with a three-dimensional structure, including nickel foam, porous graphite plates, sintered titanium, activated carbon felt, and carbon paper. The cathode catalyst is a nanomaterial containing a certain concentration of boron, nitrogen, carbon, or other inert metals.

[0038] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the cathode electrode catalytic layer on the cathode electrode surface and the anode electrode surface can reduce the activation energy of the chemical reaction. During the generation of hydrogen peroxide, the cathode electrode catalytic layer and the anode electrode provide more active sites for the electrochemical reaction, enabling the ions participating in the reaction to gain or lose electrons more efficiently, greatly accelerating the conversion rate from the electrolyte to the generation of hydrogen peroxide, reducing the time required for generation, and thus improving overall efficiency.

[0039] Specifically, for the cathode reaction assembly, the cathode electrode guides electrons to preferentially participate in the reduction reaction related to hydrogen peroxide generation, avoiding other competing reduction reactions that consume raw materials; for the anode reaction assembly, the anode electrode promotes the oxidation reaction to provide a suitable reaction environment for the generation of hydrogen peroxide at the cathode, ensuring higher purity of the generated hydrogen peroxide, stable and reliable solution quality, and reducing unnecessary side reactions.

[0040] Furthermore, the cathode and anode conductive ends, tightly connected to the cathode and anode electrodes respectively, act as conductive bridges. Throughout the electrolysis process, they stably and evenly transmit the current from the external power source to the electrode surface, avoiding current fluctuations caused by poor contact or excessive resistance. This ensures the continuous and stable progress of the electrode reaction, resulting in a smooth and orderly hydrogen peroxide generation process. It prevents fluctuations in solution concentration due to unstable current, guaranteeing the safety and effectiveness of oral care applications.

[0041] like Figures 2 to 5 The hydrogen peroxide generating module shown has a baffle assembly 7 with a first baffle 71 and a second baffle 72 located in the electrolyte chamber 4. The first baffle 71 has a first baffle opening 711 for liquid to pass through, and the second baffle 72 has a second baffle opening 721 for liquid to pass through. The extending directions of the first baffle 71 and the second baffle 72 intersect the connecting directions of the liquid inlet 2 and the liquid outlet 3, respectively.

[0042] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the arrangement of the first and second turbulence sections increases the flow path of the electrolyte within the electrolyte chamber, and the turbulence plate assembly prolongs the residence time of the liquid within the electrolyte chamber. When the liquid flows in from the inlet and encounters the first turbulence section, because its extension direction intersects with the connection direction of the inlet, the liquid is forced to change its flow direction, forming vortices and diversions when passing through the opening of the first turbulence section, promoting thorough mixing of the electrolyte in different areas. Similarly, during the flow towards the outlet, the second turbulence section again disrupts the smooth flow of the liquid, further enhancing the degree of mixing, ensuring uniform distribution of electrolyte components, and avoiding local concentration polarization caused by poor liquid flow, which leads to excessive differences in ion concentration near the electrode surface and the bulk solution concentration. This provides a more stable and uniform reaction environment for the cathode and anode reaction components, allowing ions in the electrolyte more time to contact the cathode electrode catalyst layer and the anode electrode surface, which is beneficial for the stable generation of high-quality hydrogen peroxide solution.

[0043] like Figures 2 to 5 The hydrogen peroxide generating module shown has a baffle assembly 7 with a baffle bracket 73 connecting the first baffle part 71 and the second baffle part 72. The baffle bracket 73 has a bracket inner cavity 730, a baffle first opening 731 communicating with the bracket inner cavity 730 and close to the liquid inlet 2, and a baffle second opening 732 communicating with the bracket inner cavity 730 and close to the liquid outlet 3.

[0044] Furthermore, as a preferred embodiment of this utility model and not a limitation, the first opening of the baffle plate in the baffle plate bracket is close to the liquid inlet, which can play a preliminary guiding and dispersing role for the electrolyte that has just flowed in. After the liquid enters from the liquid inlet, it is evenly dispersed into the inner cavity of the bracket through the first opening of the baffle plate. The baffle plate bracket plays a stabilizing role, which not only reduces the risk of displacement and deformation of the first baffle part 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 baffle part, so that the liquid achieves an initial smooth transition when entering the inner cavity of the bracket.

[0045] Specifically, the inner cavity of the support is interconnected with the first and second openings of the baffle, forming a localized small liquid circulation channel. When some liquid flows through the inner cavity of the support, it briefly stagnates and swirls within this small circulation channel due to pressure difference and liquid inertia, further promoting the mixing of electrolytes flowing in at different times. This not only helps to homogenize the electrolyte composition but also allows ions that have not yet fully reacted to have another opportunity to contact the electrode within the small circulation channel, indirectly improving the hydrogen peroxide production efficiency.

[0046] like Figures 2 to 4 The hydrogen peroxide generating module shown has a housing 1 including a first housing 8 and a second housing 9. The liquid inlet 2 and the liquid outlet 3 are both located in the first housing 8. The first housing 8 is provided with a first housing mounting part 80, and the second housing 9 is provided with a second housing mating part 90. The first housing mounting part 80 and the second housing mating part 90 are connected to each other so that the first housing 8 and the second housing 9 enclose the electrolyte chamber 4.

[0047] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the first and second shells are connected together to form an electrolyte chamber, making the electrolyte chamber more stable, tight, and reliable. This provides a closed and safe environment for the electrochemical reaction, ensuring the normal operation of the hydrogen peroxide generating module and the efficient conduct of the chemical reaction. The modular design makes the device easy to assemble and disassemble, facilitating maintenance. When cleaning or inspection of the electrolyte chamber is required, the split design allows the hydrogen peroxide generating module to be easily separated from the shell, directly contacting the interior of the electrolyte chamber for thorough cleaning or component replacement.

[0048] Optionally, in some embodiments, the first housing mounting part and the second housing mating part can be connected by one or more of the following methods: snap-fit ​​connection, fastener connection, threaded connection, magnetic connection, mortise and tenon connection, groove connection, etc.

[0049] Specifically, in some embodiments, the first housing mounting part is a connecting step part, and the second housing mating part is a snap-fit ​​part, and the connection between the first housing and the second housing is achieved through snap-fit ​​connection.

[0050] Specifically, in some embodiments, the first housing mounting portion is a groove, and the second housing mating portion is a protrusion, and the connection between the first housing and the second housing is achieved through a snap-fit ​​connection.

[0051] In addition, the fitting connection design between the first and second housings, with the inlet and outlet located on the first housing, reduces the risk of electrolyte leakage when flowing through the gap between the first and second housings, ensuring the sealing of the electrolyte chamber during operation.

[0052] like Figures 2 to 5 The hydrogen peroxide generating module shown has one side of the anode reaction assembly 6 connected to the bottom of the first housing 8, one side of the cathode reaction assembly 5 connected to the bottom of the second housing 9, and the baffle assembly 7 abutting against the other side of the cathode reaction assembly 5 and the other side of the anode reaction assembly 6. The first baffle portion 71 and the second baffle portion 72 are arranged in parallel, and both the first baffle portion 71 and the second baffle portion 72 are L-shaped. The first baffle portion 71 and the second baffle portion 72 abut against the cathode electrode 51 and the anode electrode 61, respectively.

[0053] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the cathode reaction assembly and the anode reaction assembly are respectively connected to the bottom of the second housing and the bottom of the first housing, and the baffle assembly is distributed on both sides of the cathode reaction assembly and the anode reaction assembly, making full use of the internal space of the housing and making the overall hydrogen peroxide generating module structure more compact. All components fit tightly together without redundant gaps, reducing the volume of the hydrogen peroxide generating module. In some embodiments, this improves the portability of the product and meets the user's need for oral care anytime, anywhere.

[0054] Specifically, the first and second turbulence sections are both L-shaped and arranged in parallel, and respectively abut against the cathode electrode and the anode electrode. After the liquid flows in from the inlet, it flows around the electrode surface under the guidance of the L-shaped first and second turbulence sections, ensuring that the electrolyte and the electrode are in full contact, allowing the cathode and anode reactions to work closely together, and ions can gain or lose electrons on the electrode surface in a timely manner to participate in the reaction, thereby increasing the hydrogen peroxide generation rate.

[0055] Specifically, the first and second flow-dissipating sections abut against the cathode and anode electrodes, respectively, forming a robust mechanical support structure to prevent problems such as loosening of connections, liquid leakage, or abnormal reactions caused by impact displacement. Especially for oral care applications, which are frequently used in various environments and at different angles, this stable and reliable structure ensures that the hydrogen peroxide generator module functions correctly with every use, providing users with safe and effective oral care.

[0056] like Figures 2 to 4The hydrogen peroxide generating module shown has the following features: a first housing 8 having a first housing opening 81 for the anode conductive end 62 to extend out, a first housing protective cavity 82 for accommodating the anode conductive end 62, and a first housing protective cavity opening 83 communicating with the first housing protective cavity 82; a second housing 9 having a second housing opening 91 for the cathode conductive end 52 to extend out, a second housing protective cavity 92 for accommodating the cathode conductive end 52, and a second housing protective cavity opening 93 communicating with the second housing protective cavity 92; the first housing opening 81 and / or the second housing opening 91 are provided with sealing elements; the first housing protective cavity opening 83 is located on the side away from the second housing 9, and the second housing protective cavity opening 93 is located on the side away from the first housing 8.

[0057] Furthermore, as a preferred embodiment of this utility model and not a limitation, the second housing has an opening for the cathode conductive end to extend, and the first housing has an opening for the anode conductive end to extend. The second and first housing protective cavities provide accommodating spaces for the cathode and anode conductive ends, respectively, providing a convenient channel for connecting the reaction components to an external power source. This ensures that current can be stably and smoothly input into the cathode and anode reaction components, maintaining the continuous generation of hydrogen peroxide. The sealing element further enhances the reliability of the connection. On the one hand, the sealing element prevents the liquid in the electrolyte chamber from overflowing into the external space; on the other hand, it also effectively prevents external moisture, dust, and other impurities from entering the electrolyte chamber through the opening, avoiding problems such as poor contact or short circuits at the conductive ends that could affect the normal operation of the hydrogen peroxide generating module, thus ensuring the electrical safety of the entire electrolysis reaction process.

[0058] In addition, in some embodiments, the opening of the first housing protection cavity is located on the side away from the second housing, and the opening of the second housing protection cavity is located on the side away from the first housing. This further reduces the possibility of entanglement between different power connection terminals and also reduces the risk of external foreign objects entering through the opening of the first housing protection cavity or the opening of the second housing protection cavity and interfering with the conductive terminals. This ensures that the electrolysis reaction of the hydrogen peroxide generating module continues and is stable, providing a guarantee for the water flosser to stably generate hydrogen peroxide solution.

[0059] like Figures 2 to 5 The hydrogen peroxide generating module shown has a first housing 8 with a positioning part 820 that limits the anode reaction component 6. The cathode electrode 51 and the anode electrode 61 are both flat. The area of ​​the anode electrode 61 is smaller than the area of ​​the cathode electrode 51, and the area of ​​the cathode electrode 51 is larger than the bottom area of ​​the inner cavity 730 of the support. The outer side of the baffle support 73 has a baffle support limiting part 733 that abuts against the inner wall of the first housing 8.

[0060] Furthermore, as a preferred embodiment of this utility model and not a limitation, the positioning part provided in the first housing serves to limit the position of the anode reaction assembly. During the assembly of the hydrogen peroxide generating module, this ensures that the anode electrode can be quickly and accurately installed in the predetermined position, maintaining a precise relative positional relationship with other components. This not only improves production assembly efficiency, but also ensures that the anode reaction assembly will not shift even when subjected to external forces such as vibration or shaking during the operation of the hydrogen peroxide generating module, guaranteeing the stability of the electrolysis reaction and continuously and stably providing a reducing environment for hydrogen peroxide generation, thus ensuring a stable output of the solution required for oral care.

[0061] Optionally, in some embodiments, the anode electrode is arranged in a flat plate with an area smaller than that of the cathode electrode. This arrangement increases the oxidation reaction area of ​​the cathode. During electrolysis, more ions can undergo oxidation reactions on the anode surface, combining with oxygen in the water to provide more sufficient reactants for the generation of hydrogen peroxide at the cathode, thus promoting the efficient generation of hydrogen peroxide. Simultaneously, the larger cathode electrode can better disperse the current density, reduce local overheating, and improve the stability and reaction efficiency of the entire electrode system, meeting the needs of oral care for rapid and sufficient preparation of hydrogen peroxide solution.

[0062] Optionally, in some embodiments, the cathode electrode area is larger than the bottom area of ​​the support cavity, allowing more space for the electrolyte to react fully as it flows through the cathode region. The liquid flows more uniformly and slowly over the large cathode surface, which is beneficial for ions to fully participate in the reaction and prevents some ions from leaving the electrode region before reacting due to excessively high flow rates. The baffle support limiting portion on the outer side of the baffle support abuts against the inner wall of the first housing, further fixing the position of the baffle support and ensuring that the baffle assembly guides the liquid flow path, allowing the electrolyte to form an efficient circulation flow between the cathode, anode, and support cavity, improving the reaction synergy between components and enhancing the quality of hydrogen peroxide generation.

[0063] like Figures 2 to 5 The hydrogen peroxide generating module shown has a cathode reaction assembly 5 on the side near the liquid inlet 2. The liquid inlet 2 and the liquid outlet 3 are disposed opposite each other on both sides of the first housing 8. The first opening 731 and the second opening 732 of the baffle plate are disposed opposite each other. The first baffle opening 711 and the second baffle opening 721 are disposed opposite each other in a staggered manner. Both the first baffle opening 711 and the second baffle opening 721 are close to the anode electrode 61.

[0064] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the cathode reaction assembly is positioned close to the inlet, allowing the electrolyte entering the hydrogen peroxide generation module to immediately contact the cathode reaction area. Since the inlet and outlet are positioned opposite each other on opposite sides of the first housing, the travel distance of the solution is extended. Furthermore, the electrolyte, upon entering, naturally flows along a predetermined path through the cathode, fully utilizing the kinetic energy of the liquid flowing in from the inlet. This encourages more raw materials to rapidly participate in the reduction reaction at the cathode to generate hydrogen peroxide, thereby increasing the initial reaction rate.

[0065] Furthermore, the staggered arrangement of the first and second openings of the baffle plate forces the electrolyte to form a complex, meandering flow path within the support cavity, further enhancing the liquid mixing effect and ensuring a uniform distribution of electrolyte components flowing in at different times. Simultaneously, it also allows for a more uniform liquid velocity as it flows through the cathode and anode regions, preventing excessively fast or slow local flow rates from affecting reaction efficiency, guiding the liquid to flow orderly between components, and optimizing the entire electrolysis reaction process.

[0066] Furthermore, both the first and second baffle openings are located close to the anode electrode. The flow velocity near the anode electrode is slightly higher, allowing some oxygen to move within the area. This enables the liquid flow guided by the baffle assembly to focus on the key site for hydrogen peroxide generation. More electrolyte containing reactants flows towards the cathode through the area between the first and second baffles, increasing the concentration of reactants on the cathode electrode surface and enhancing the reduction reaction process. This is beneficial for increasing the generation rate and yield of hydrogen peroxide. It also prevents the liquid from flowing away rapidly through the second or first opening of the baffle without contacting the cathode electrode. This concentrated flow design can also carry away the reaction products through the liquid flow velocity near the anode electrode, maintaining suitable reaction conditions on the cathode electrode surface and continuously and stably producing high-quality hydrogen peroxide solution for oral care.

[0067] This specific embodiment also provides a water flosser with a hydrogen peroxide generating module as described above. Specifically, the hydrogen peroxide generating module is integrated into the water flosser, eliminating the need for users to prepare hydrogen peroxide solution separately and saving them from cumbersome preparation steps. Users simply add an appropriate amount of water to the tank and turn on the water flosser, as they would with any other water flosser. The internal hydrogen peroxide generating module instantly generates a hydrogen peroxide solution of the appropriate concentration for oral rinsing, avoiding the problem of pre-prepared solutions becoming ineffective due to light and temperature.

[0068] Furthermore, when using hydrogen peroxide solution alone, improper concentration can easily damage the oral mucosa. This new water flosser sprays water carrying a suitable and stable concentration of hydrogen peroxide solution, allowing it to penetrate deep into hard-to-reach areas such as between teeth and gingival sulcus, powerfully killing bacteria and removing food debris. Compared to ordinary water flossers, its cleaning and sterilization effects are improved, avoiding the risks of storing high-concentration hydrogen peroxide in advance or misuse. Therefore, it provides stronger protection for oral health while efficiently cleaning and sterilizing.

[0069] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, this utility model, by setting a hydrogen peroxide generating module, allows the user to simply inject a suitable liquid into the electrolyte chamber through the inlet, without the need to prepare a separate hydrogen peroxide solution. This enables the immediate generation of hydrogen peroxide solution in the cathode reaction assembly, avoiding the situation where concentration changes and sterilization effects deteriorate due to long-term storage, and ensuring that the expected sterilization and disinfection effects are achieved. This utility model, by setting a baffle assembly, allows the electrolyte to flow and react fully between the cathode reaction assembly and the anode reaction assembly, improving the controllability of the hydrogen peroxide generation rate.

[0070] Example 1

[0071] like Figures 1 to 5 The hydrogen peroxide generating module shown includes a housing 1, an inlet 2 and an outlet 3 respectively communicating with the housing 1, an electrolyte chamber 4 respectively communicating with the inlet 2 and the outlet 3, a cathode reaction assembly 5 and an anode reaction assembly 6 respectively located in the electrolyte chamber 4, and a baffle assembly 7 for increasing the liquid movement. The cathode reaction assembly 5 is used to generate hydrogen peroxide, and the baffle assembly 7 is connected between the cathode reaction assembly 5 and the anode reaction assembly 6.

[0072] This invention, by incorporating a hydrogen peroxide generating module, allows users to simply inject a suitable liquid into the electrolyte chamber 4 through the inlet 2, eliminating the need for a separate hydrogen peroxide solution. This enables the immediate generation of hydrogen peroxide solution in the cathode reaction assembly 5, preventing concentration changes and reduced sterilization effectiveness due to prolonged storage and ensuring the achievement of the expected sterilization and disinfection effects. Furthermore, the invention utilizes a baffle assembly 7 to ensure sufficient flow and reaction of the electrolyte between the cathode reaction assembly 5 and the anode reaction assembly 6, thereby improving the controllability of the hydrogen peroxide generation rate.

[0073] Example 2

[0074] Based on Example 1, Example 2 also has the following implementation method:

[0075] 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 catalyst layer disposed on the surface of the cathode electrode 51. The anode reaction assembly 6 includes an anode electrode 61 and an anode conductive end 62 connected to the anode electrode 61.

[0076] The anode electrode 61 comprises one of the following electrochemically resistant inert conductive materials: noble metal oxide coated electrode, BDD, graphene coated electrode, etc. The cathode electrode 51 is preferably a material with a three-dimensional structure, including one of the following: nickel foam, porous graphite plate, sintered titanium, activated carbon felt, carbon paper, etc. The cathode catalyst is one of the following: boron, nitrogen, carbon, or other nano-nonmetallic materials or inert metallic materials with a certain concentration.

[0077] During the electrolytic preparation of hydrogen peroxide, oxygen can diffuse to the surface of the cathode electrode 51. During the electrochemical reaction, an oxygen reduction reaction occurs on the surface of the cathode electrode 51 to generate hydrogen peroxide.

[0078] O2+ 2H + + 2e - → H2O2;

[0079] Simultaneously, an oxidation reaction occurs on the surface of the anode electrode 61 to generate oxygen:

[0080] 2H₂O → O₂ + 4H + + 4e - ;

[0081] The overall reaction of the entire electrolysis process is 2H2O + O2 → 2H2O2.

[0082] This invention uses the cathode reaction component 5 to generate hydrogen peroxide, and the anode reaction component 6 to facilitate the rapid transfer of oxygen and its participation in the cathode reaction, thereby advancing the reaction. Compared with the method of generating hydrogen peroxide in a low-oxygen environment at the anode, this invention can improve the continuous production efficiency of hydrogen peroxide.

[0083] Example 3

[0084] Based on Example 1, Example 3 also has the following implementation method:

[0085] The baffle assembly 7 is provided with a first baffle portion 71 and a second baffle portion 72 respectively located in the electrolyte chamber 4. The first baffle portion 71 is provided with a first baffle portion opening 711 for liquid to pass through, and the second baffle portion 72 is provided with a second baffle portion opening 721 for liquid to pass through. The extending directions of the first baffle portion 71 and the second baffle portion 72 intersect with the connection direction of the liquid inlet 2 and the liquid outlet 3 respectively.

[0086] Example 4

[0087] Based on Example 3, Implementation 4 also has the following implementation methods:

[0088] The spoiler assembly 7 is provided with a spoiler bracket 73 connecting the first spoiler part 71 and the second spoiler part 72. The spoiler bracket 73 is provided with a bracket inner cavity 730, a first spoiler opening 731 communicating with the bracket inner cavity 730 and close to the liquid inlet 2, and a second spoiler opening 732 communicating with the bracket inner cavity 730 and close to the liquid outlet 3.

[0089] Example 5

[0090] Based on Example 1, Implementation 5 also has the following implementation methods:

[0091] The housing 1 includes a first housing 8 and a second housing 9. The liquid inlet 2 and the liquid outlet 3 are both located in the first housing 8. The first housing 8 is provided with a first housing mounting part 80, and the second housing 9 is provided with a second housing mating part 90. The first housing mounting part 80 and the second housing mating part 90 are connected to each other so that the first housing 8 and the second housing 9 enclose the electrolyte chamber 4.

[0092] Optionally, in some embodiments, the first housing mounting part and the second housing mating part can be connected by one or more of the following methods: snap-fit ​​connection, fastener connection, threaded connection, magnetic connection, mortise and tenon connection, groove connection, etc.

[0093] Specifically, in this embodiment, the first housing mounting part is a groove, and the second housing mating part is a protrusion, and the connection between the first housing and the second housing is achieved by a snap-fit ​​connection.

[0094] Specifically, in some other embodiments, the first housing mounting part is a connecting step part, and the second housing mating part is a snap-fit ​​part, and the connection between the first housing and the second housing is achieved through snap-fit ​​connection.

[0095] Example 6

[0096] Based on Embodiments 4 and 5, Embodiment 6 also has the following implementation methods:

[0097] One side of the anode reaction assembly 6 is connected to the bottom of the first housing 8, and one side of the cathode reaction assembly 5 is connected to the bottom of the second housing 9. The baffle assembly 7 abuts against the other side of the cathode reaction assembly 5 and the other side of the anode reaction assembly 6. The first baffle portion 71 and the second baffle portion 72 are arranged in parallel. Both the first baffle portion 71 and the second baffle portion 72 are L-shaped. The first baffle portion 71 and the second baffle portion 72 abut against the cathode electrode 51 and the anode electrode 61, respectively.

[0098] Example 7

[0099] Based on Example 6, Implementation 7 also has the following implementation methods:

[0100] The first housing 8 is provided with a first housing opening 81 for the anode conductive end 62 to extend out, a first housing protective cavity 82 for accommodating the anode conductive end 62, and a first housing protective cavity opening 83 communicating with the first housing protective cavity 82. The second housing 9 is provided with a second housing opening 91 for the cathode conductive end 52 to extend out, a second housing protective cavity 92 for accommodating the cathode conductive end 52, and a second housing protective cavity opening 93 communicating with the second housing protective cavity 92. The first housing protective cavity opening 83 is located on the side away from the second housing 9, and the second housing protective cavity opening 93 is located on the side away from the first housing 8.

[0101] Example 8

[0102] Example 8, based on Example 7, further includes the following implementation method:

[0103] The first housing opening 81 and the second housing opening 91 are provided with sealing elements.

[0104] Optionally, in some embodiments, when the second housing is located on the upper side during use and the electrolyte does not come into contact with the opening of the second housing, only the opening 81 of the first housing is provided with a seal.

[0105] Optionally, in some embodiments, when the first housing is located on the upper side during use and the electrolyte does not come into contact with the opening of the first housing, only the opening 91 of the second housing is provided with a seal.

[0106] Example 9

[0107] Based on Examples 4 and 5, Example 9 also has the following implementation method:

[0108] The first housing 8 is provided with a positioning part 820 that limits the anode reaction assembly 6. The cathode electrode 51 and the anode electrode 61 are both flat. 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 inner cavity 730 of the support. The area of ​​the cathode electrode 51 is larger than the bottom area of ​​the inner cavity 730 of the support. The outer side of the spoiler support 73 is provided with a spoiler support limiting part 733 that abuts against the inner wall of the first housing 8.

[0109] Example 10

[0110] Example 10, based on Examples 4 and 5, also has the following implementation method:

[0111] The cathode reaction assembly 5 is located on the side near the liquid inlet 2. The liquid inlet 2 and the liquid outlet 3 are arranged opposite each other on both sides of the first housing 8. The first opening 731 and the second opening 732 of the baffle plate are arranged opposite each other. The first baffle opening 711 and the second baffle opening 721 are staggered and arranged opposite each other. Both the first baffle opening 711 and the second baffle opening 721 are close to the anode electrode 61.

[0112] Example 11

[0113] Example 11, based on the above examples, also has the following implementation method:

[0114] This specific embodiment also provides a water flosser with a hydrogen peroxide generating module as described in the above embodiment. Specifically, by integrating the hydrogen peroxide generating module into the water flosser, users no longer need to prepare hydrogen peroxide solution separately, thus eliminating the cumbersome preparation steps. Users simply add an appropriate amount of water to the tank and turn on the water flosser, just like using a regular water flosser. The internal hydrogen peroxide generating module instantly generates a hydrogen peroxide solution of the appropriate concentration for oral rinsing, avoiding the situation where pre-prepared solutions are easily affected by light and temperature and become ineffective.

[0115] Furthermore, when using hydrogen peroxide solution alone, improper concentration can easily damage the oral mucosa. This new water flosser sprays water carrying a suitable and stable concentration of hydrogen peroxide solution, allowing it to penetrate deep into hard-to-reach areas such as between teeth and gingival sulcus, powerfully killing bacteria and removing food debris. Compared to ordinary water flossers, its cleaning and sterilization effects are improved, avoiding the risks of storing high-concentration hydrogen peroxide in advance or misuse. Therefore, it provides stronger protection for oral health while efficiently cleaning and sterilizing.

[0116] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A hydrogen peroxide generating module, comprising a housing (1), an inlet (2) and an outlet (3) respectively communicating with the housing (1), characterized in that: The housing (1) is provided with an electrolyte chamber (4) that is connected to the liquid inlet (2) and the liquid outlet (3) respectively, a cathode reaction assembly (5) and an anode reaction assembly (6) located in the electrolyte chamber (4) respectively, and a baffle assembly (7) for increasing the liquid movement. The cathode reaction assembly (5) is used to generate hydrogen peroxide, and the baffle assembly (7) is connected between the cathode reaction assembly (5) and the anode reaction assembly (6).

2. The hydrogen peroxide generating module according to claim 1, characterized in that: 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 catalyst layer disposed on the surface of the cathode electrode (51). The anode reaction assembly (6) includes an anode electrode (61) and an anode conductive end (62) connected to the anode electrode (61).

3. A hydrogen peroxide generating module according to claim 2, characterized in that: The baffle assembly (7) is provided with a first baffle (71) and a second baffle (72) located in the electrolyte chamber (4). The first baffle (71) is provided with a first baffle opening (711) for liquid to pass through, and the second baffle (72) is provided with a second baffle opening (721) for liquid to pass through. The extension directions of the first baffle (71) and the second baffle (72) intersect with the connection directions of the liquid inlet (2) and the liquid outlet (3), respectively.

4. A hydrogen peroxide generating module according to claim 3, characterized in that: The spoiler assembly (7) is provided with a spoiler bracket (73) connecting the first spoiler part (71) and the second spoiler part (72). The spoiler bracket (73) is provided with a bracket cavity (730), a first spoiler opening (731) communicating with the bracket cavity (730) and close to the liquid inlet (2), and a second spoiler opening (732) communicating with the bracket cavity (730) and close to the liquid outlet (3).

5. A hydrogen peroxide generating module according to claim 4, characterized in that: The housing (1) includes a first housing (8) and a second housing (9). The liquid inlet (2) and the liquid outlet (3) are both located in the first housing (8). The first housing (8) is provided with a first housing mounting part (80), and the second housing (9) is provided with a second housing mating part (90). The first housing mounting part (80) and the second housing mating part (90) are connected to each other so that the first housing (8) and the second housing (9) enclose the electrolyte chamber (4).

6. A hydrogen peroxide generating module according to claim 5, characterized in that: One side of the anode reaction assembly (6) is connected to the bottom of the first housing (8), and one side of the cathode reaction assembly (5) is connected to the bottom of the second housing (9). The baffle assembly (7) abuts against the other side of the cathode reaction assembly (5) and the other side of the anode reaction assembly (6). The first baffle (71) and the second baffle (72) are arranged in parallel. The first baffle (71) and the second baffle (72) are both L-shaped. The first baffle (71) and the second baffle (72) abut against the cathode electrode (51) and the anode electrode (61) respectively.

7. A hydrogen peroxide generating module according to claim 5, characterized in that: The first housing (8) is provided with a first housing opening (81) for the anode conductive end (62) to extend out, a first housing protective cavity (82) for accommodating the anode conductive end (62), and a first housing protective cavity opening (83) communicating with the first housing protective cavity (82). The second housing (9) is provided with a second housing opening (91) for the cathode conductive end (52) to extend out, a second housing protective cavity (92) for accommodating the cathode conductive end (52), and a second housing protective cavity opening (93) communicating with the second housing protective cavity (92). The first housing opening (81) and / or the second housing opening (91) are provided with sealing elements. The first housing protective cavity opening (83) is located on the side away from the second housing (9), and the second housing protective cavity opening (93) is located on the side away from the first housing (8).

8. A hydrogen peroxide generating module according to claim 5, characterized in that: The first housing (8) is provided with a positioning part (820) for limiting the anode reaction assembly (6). The cathode electrode (51) and the anode electrode (61) are both flat. 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 inner cavity (730) of the bracket. The outer side of the spoiler bracket (73) is provided with a spoiler bracket limiting part (733) that abuts against the inner wall of the first housing (8).

9. A hydrogen peroxide generating module according to claim 5, characterized in that: The cathode reaction assembly (5) is located on the side near the liquid inlet (2). The liquid inlet (2) and the liquid outlet (3) are arranged opposite to each other on both sides of the first housing (8). The first opening (731) and the second opening (732) of the baffle plate are arranged opposite to each other. The first baffle opening (711) and the second baffle opening (721) are staggered and arranged opposite to each other. The first baffle opening (711) and the second baffle opening (721) are both close to the anode electrode (61).

10. A dental flosser, characterized in that: Includes the hydrogen peroxide generating module according to any one of claims 1-9.

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