A hydrogen-rich water cup

Abstract

The application discloses a hydrogen-rich water cup, which comprises a cup seat and a cup body, a water storage cavity for storing drinking water is arranged on the cup body, a water tank for containing electrolytic water and a water hydrolysis hydrogen production module for electrolyzing water to produce hydrogen are arranged in the cup seat, and the electrolytic water flows in circulation between the water tank and the water hydrolysis hydrogen production module through pipelines. The water hydrolysis hydrogen production module is arranged in the base, the water tank and the water hydrolysis hydrogen production module are connected through the pipelines to form a closed electrolytic water circulation loop, the electrolytic water only flows in the circulation loop and is physically isolated from the drinking water in the water storage cavity, therefore, even if tea, juice or water containing minerals is added into the water storage cavity, the electrolysis module will not be polluted or damaged, the service life of the water hydrolysis hydrogen production module is effectively prolonged, and the stable electrolysis efficiency is maintained.

Description

Technical Field

[0001] This invention relates to the field of water treatment equipment technology, specifically to a hydrogen-rich water cup. Background Technology

[0002] Hydrogen-rich water, rich in hydrogen, has potential health benefits such as scavenging free radicals and anti-oxidation, and has received widespread market attention in recent years. Portable hydrogen-rich water cups have become mainstream products due to their convenience.

[0003] Various hydrogen-rich water cup solutions have been disclosed in the prior art. For example, patent application CN201520659205.0 discloses an integrated hydrogen-rich water manufacturing device. The device has a first water storage chamber and a second water storage chamber inside the drinking cup. A cation exchange membrane is set between the two chambers. A cathode electrolysis plate and an anode electrolysis plate are set above and below the cation exchange membrane, respectively. The electrodes are in direct contact with drinking water in the water storage chamber. For example, patent application CN202022328655.5 discloses a hydrogen-rich water cup with a press pump, which dispenses water through the press pump, but its electrolysis structure is directly connected to the water storage chamber. Patent application CN205933329U discloses a hydrogen-rich water cup, which discloses that hydrogen collection channels and oxygen emission channels are respectively set on both sides of the inner wall of the cup body, and the hydrogen generation electrode is directly set inside the cup body and in contact with drinking water. The patent application with application number CN201720306800 discloses a hydrogen-rich water cup with hydrogen-oxygen separation that does not allow water to flow out. It achieves hydrogen-oxygen separation by setting positive and negative electrodes and unidirectional electrode membranes in the ionization chamber, but the electrodes are still in direct contact with the water in the cup.

[0004] However, the aforementioned existing technologies generally suffer from the following problems: First, the electrolysis structure (electrodes, proton exchange membranes, etc.) is directly placed inside the water storage chamber or in contact with the drinking water inside the cup. Because the electrolysis module is in direct contact with the drinking water, when users add tea, juice, or mineral-containing water to the cup, impurities can easily adhere to the surface of the electrodes and proton exchange membranes, leading to decreased electrolysis efficiency, shortened module lifespan, and even damage to the membrane electrodes. On the other hand, for solutions using purified water for electrolysis, due to corrosion and wear of the electrodes during the electrolysis process, corrosion products may directly enter the drinking water, affecting drinking water safety. Second, the boundary between electrolyzed water and drinking water is unclear. In the aforementioned existing technologies, the water used for electrolysis is directly obtained from the water storage chamber. The electrolysis reaction consumes the water that the user intends to drink. Users need to add water to the water storage chamber of the cup more frequently, resulting in a poor user experience. At the same time, this structure makes it difficult to maintain and protect the electrolysis module independently, which limits the stability of the product in the long term. Third, hydrogen is not completely separated from other electrolysis byproducts. In addition to hydrogen, oxygen and possible trace compounds are also generated on the anode side during electrolysis. With the open and interconnected structure of the water storage chamber, byproduct gases can easily mix into the drinking water in the water storage chamber, affecting the purity of hydrogen and the taste of drinking water, and reducing the health value of hydrogen-rich water.

[0005] Therefore, existing hydrogen-rich water cups still have significant shortcomings in terms of isolating electrolyzed water from drinking water and separating hydrogen and oxygen. There is an urgent need for a hydrogen-rich water generation device that can completely separate electrolyzed water from drinking water and achieve independent circulation of electrolyzed water. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a hydrogen-rich water cup.

[0007] To solve the above-mentioned technical problems, the technical solution proposed by this invention is as follows: A hydrogen-rich water cup includes a cup base and a cup body. The cup body is provided with a water storage cavity for storing drinking water. The cup base is provided with a water tank for containing electrolyzed water and a hydrolysis hydrogen production module for electrolyzing water to generate hydrogen. The electrolyzed water circulates between the water tank and the hydrolysis hydrogen production module through a pipeline. The hydrogen outlet of the hydrolysis hydrogen production module is unidirectionally connected to the water storage chamber so that the hydrogen generated by electrolysis can be introduced into the drinking water in the water storage chamber.

[0008] Furthermore, it also includes a water pump, the inlet and outlet of which are connected to a water tank and a hydrolysis hydrogen production module, respectively.

[0009] Furthermore, the cup holder is detachably connected to the cup body, and the water tank is integrally connected to or sealed to the inner wall of the cup holder.

[0010] Furthermore, the water tank is equipped with an exhaust structure, which is used to discharge the by-product gases generated by electrolysis.

[0011] Furthermore, the water tank is equipped with a water level detection component, which includes a float and a float limiting tube. The float limiting tube is connected to the inner cavity of the water tank. The float is set inside the float limiting tube and can move up and down with the water level. A sensor is provided at the bottom or corresponding position of the water tank to detect the position of the float and control the water pump to stop working when the water level is lower than the set value.

[0012] Furthermore, the cross-section of the float limiting tube is arc-shaped, and there is a gap between it and the inner wall of the water tank cavity. The gap forms a channel for electrolyzed water to enter the float limiting tube.

[0013] Furthermore, the hydrogen outlet of the hydrolysis hydrogen production module is connected to the water storage chamber via a hydrogen delivery passage, and a hydrogen filter is provided in the hydrogen delivery passage to disperse the hydrogen into tiny bubbles.

[0014] Furthermore, the hydrogen delivery passage is at least partially formed inside or through the water tank, with its upper end connected to the water storage cavity and its lower end connected to the hydrogen outlet.

[0015] Furthermore, the water electrolysis hydrogen production module includes an anode plate, a cathode plate, and a proton exchange membrane located between the anode plate and the cathode plate, with an electrolytic cell formed between the anode plate and the cathode plate.

[0016] Furthermore, the electrolytic cell includes an anode tank located within the anode plate and a cathode tank located within the cathode plate. The anode tank is connected to the module inlet and module outlet of the water electrolysis hydrogen production module, and the cathode tank is connected to the hydrogen outlet.

[0017] Furthermore, the anode tank and / or cathode tank are provided with multiple flow channels to increase the contact area between the electrolyzed water and the electrodes.

[0018] Furthermore, the water electrolysis hydrogen production module also includes an upper pressure plate and a lower pressure plate, and the anode sheet, cathode sheet and proton exchange membrane are stacked and pressed between the upper pressure plate and the lower pressure plate.

[0019] Furthermore, the water tank has an inner cavity for storing electrolyzed water, and a one-way channel is provided on the water tank for one-way communication between the water storage cavity and the inner cavity.

[0020] Furthermore, a one-way valve is provided in the one-way channel, and the one-way valve is connected to the water pump through a pipe.

[0021] Furthermore, the hydrogen delivery passage is also provided with a support disc located below the hydrogen filter plate. The support disc has multiple small-diameter through holes A in the central area and multiple large-diameter through holes B in the outer peripheral area. A plug is provided at the center of the lower end face of the support disc. The hydrogen delivery passage is also provided with a floating valve core that can float up and down located below the support disc. The floating valve core has a through groove in the middle, and its lower end is shaped like a frustum. Multiple secondary through grooves are distributed circumferentially on the inclined surface of the frustum.

[0022] Furthermore, when the hydrogen pressure is lower than the set value, the floating valve core is not lifted, and the hydrogen gas passes through the through groove and the through hole A in sequence into the water storage chamber; when the hydrogen pressure is higher than the set value, the floating valve core is lifted, and its upper end face abuts against the plug to seal the groove opening, and the hydrogen gas flows out from the secondary through groove and then contacts the hydrogen filter through the through hole B.

[0023] Compared with the prior art, the advantages of the present invention are as follows: This invention features an independent water tank to hold electrolyzed water, with a hydrolysis hydrogen production module housed within a cup holder. The water tank and the hydrolysis hydrogen production module are connected via pipelines to form a closed electrolyzed water circulation loop. The electrolyzed water flows only within this loop, physically isolated from the drinking water in the storage chamber. The water consumed by the user does not participate in the electrolysis reaction throughout the process. Therefore, even if tea, juice, or mineral-containing water is added to the storage chamber, it will not contaminate or damage the electrolysis module, effectively extending its service life and maintaining stable electrolysis efficiency. Simultaneously, the electrode corrosion products generated by the electrolysis module itself are isolated within the circulation loop and will not enter the drinking water, ensuring drinking water safety. The hydrogen output port of the hydrolysis hydrogen production module is unidirectionally connected to the water storage chamber, and the hydrogen produced by electrolysis is directed into the drinking water. The oxygen and other by-product gases produced by electrolysis are discharged through the exhaust structure and do not enter the water storage chamber. Compared with the existing technology where electrolysis by-products (oxygen, acidic water, etc.) are easily mixed into drinking water, this solution ensures that only high-purity hydrogen is dissolved in the drinking water, thus guaranteeing the quality and taste of hydrogen-rich water. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an explosion of a hydrogen-rich water cup disclosed in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the cup body disclosed in a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the cup body disclosed in a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the water pump pipeline structure disclosed in a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the cross-section of the float limiting tube disclosed in a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of a partial cross-sectional structure of the cup body disclosed in a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of the hydrolysis hydrogen production module structure disclosed in a preferred embodiment of the present invention; Figure 8 This is an exploded schematic diagram of the hydrolysis hydrogen production module disclosed in a preferred embodiment of the present invention; Figure 9 This is a schematic diagram of the cathode sheet structure disclosed in a preferred embodiment of the present invention; Figure 10 This is a schematic diagram of the through-hole structure disclosed in a preferred embodiment of the present invention; Figure 11 This is a schematic diagram of the cup lid and cup body assembly structure disclosed in a preferred embodiment of the present invention; Figure 12This is a top view schematic diagram of the water tank structure according to a preferred embodiment of the present invention; Figure 13 This is a schematic diagram of the cross-sectional structure of the floating valve core and the support disc disclosed in a preferred embodiment of the present invention; Figure 14 This is a schematic diagram of the relative positions of the floating valve core and the plug when the hydrogen flow rate is relatively low, as disclosed in a preferred embodiment of the present invention; Figure 15 This is a schematic diagram of the relative positions of the floating valve core and the plug when the hydrogen flow rate is large, as disclosed in a preferred embodiment of the present invention; Figure 16 This is a schematic diagram of the preferred embodiment of the floating valve core and the support disc assembly structure of the present invention.

[0025] Legend: 1. Cup holder; 11. Control display screen; 12. Charging interface; 13. Base; 14. Base connecting rod; 2. Cup body; 21. Water storage chamber; 3. Cup lid; 4. Battery; 5. Circuit board; 6. Water tank; 60. One-way channel; 601. One-way valve; 602. Connecting pipe; 61. Exhaust structure; 62. Water tank inner cavity; 63. Box body; 64. Box lid; 65. Float limit tube; 66. Float; 67. Hydrogen delivery passage; 68. Hydrogen filter; 69. Connecting channel; 71 71a. Support disc; 71b. Through hole A; 71c. Through hole B; 71d. Plug; 72. Floating valve core; 72d. Through groove; 72d. Through secondary groove; 72d. Frustum inclined surface; 7. Water pump; 8. Hydrogen production module by hydrolysis; 81. Hydrogen outlet; 82. Module water inlet; 83. Module water outlet; 84. Upper pressure plate; 85. Lower pressure plate; 86. Anode plate; 87. Cathode plate; 88. Proton exchange membrane; 89. Anode groove; 810. Cathode groove; 811. Insulating gasket. Detailed Implementation

[0026] To facilitate understanding of the present invention, the present invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of protection of the present invention is not limited to the following specific embodiments.

[0027] like Figures 1 to 12 As shown in the figure, this embodiment discloses a water cup, specifically a water cup capable of producing hydrogen-rich water.

[0028] See attached document Figure 1 and attached Figure 3 The water cup includes a cup base 1 and a cup body 2 disposed on the cup base 1. The cup body 2 is provided with a cup lid 3. The cup body 2 has a water storage cavity 21 for storing drinking water. The cup body 2 and the cup lid 3 can be connected by threads or snaps. In this embodiment, a threaded connection is used. A food-grade sealing ring is provided at the connection to ensure a seal.

[0029] The bottom structural component of the cup holder 1 is the base 13, which is integrally or separately connected to the side wall of the cup holder 1. The base 13 carries the internal components (battery, circuit board, water pump, water tank, etc.) and plays a supporting role for the whole machine. Anti-slip pads or ventilation holes can be set at the bottom of the base.

[0030] It also includes a base connecting rod 14, a rod-like structure connecting the base 13 to other parts of the cup holder 1, used to enhance the overall strength and ensure the structural stability of the cup holder. Multiple base connecting rods 14 can be provided, evenly distributed circumferentially.

[0031] The cup body 2 is preferably made of copolyester material, which meets food contact standards, is free of bisphenol A (BPA), has a heat resistance temperature of ≥100℃, and can be directly filled with boiling water. The outer shell of the cup base 1 is preferably made of 6063-T5 aluminum alloy, with an anodized surface treatment, which takes into account both structural strength and corrosion resistance.

[0032] The cup holder 1 has a charging port 12 and a control display screen 11 on its side wall. The control display screen 11 is a touch screen, which is electrically connected to the circuit board 5. It is used to set and display various operating parameters of the hydrogen-rich water cup, such as hydrogen production time, hydrogen concentration, power consumption, and operating mode. Users can start or stop the hydrogen production function through touch operation. The charging port 12 is usually a Type-C or Micro-USB interface, which is electrically connected to the battery 4 for charging the rechargeable battery 4. A waterproof sealing plug can be installed at the charging port to prevent moisture from entering.

[0033] See attached document Figure 2 The cup holder 1 is equipped with a water tank 6 for containing electrolyzed water and a water electrolysis hydrogen production module 8. The water tank 6 and the water electrolysis hydrogen production module 8 are connected by a pipeline to form a circulation loop for electrolyzed water. The electrolyzed water is circulated in the circulation loop by a pump.

[0034] The lower pressure plate 85 of the hydrolysis hydrogen production module 8 is fixed to the base connecting rod 14 by screws, thereby realizing the overall installation and positioning of the hydrolysis hydrogen production module 8.

[0035] See attached document Figure 4 Specifically, the cup holder 1 is also equipped with a water pump 7 as a pumping actuator, which is connected to the water tank 6 and the hydrolysis hydrogen production module 8 through a hose or rigid pipe.

[0036] See attached document Figure 7 The outlet of water tank 6 is connected to the inlet of water pump 7 through a pipeline. The outlet of water pump 7 is connected to the module inlet 82 of hydrolysis hydrogen production module 8 through a pipeline. The module outlet 83 of hydrolysis hydrogen production module 8 is connected to the return outlet of return water tank 6 through a pipeline, thus forming a closed electrolytic water circulation loop. Water pump 7 is powered by battery 4 and its start / stop and flow rate are controlled by circuit board 5.

[0037] The hydrolysis hydrogen production module 8 has a hydrogen output port (i.e., hydrogen outlet 81), which is unidirectionally connected to the water storage chamber 21 to introduce the hydrogen generated by electrolysis into the drinking water in the water storage chamber 21.

[0038] See attached document Figure 2 Specifically, the hydrogen outlet 81 is connected to the water storage chamber 21 through the hydrogen delivery passage 67, and the hydrogen delivery passage 67 is equipped with a hydrogen filter 68 that can break up water bubbles. A one-way valve (not shown) can also be installed to ensure that hydrogen can only flow from the hydrolysis hydrogen production module 8 to the water storage chamber 21, while water or gas in the water storage chamber 21 cannot flow back into the hydrolysis hydrogen production module 8.

[0039] See attached document Figure 11 Specifically, the water tank 6 includes a tank body 63 and a tank cover 64. The tank body 63 has an integrally formed or sealed hydrogen delivery passage 67. The bottom of the hydrogen delivery passage 67 extends downward to near the hydrogen outlet 81 of the hydrolysis hydrogen production module 8 and is connected to the hydrogen outlet 81 through a sealing joint.

[0040] See attached document Figure 3 The hydrogen delivery passage 67 includes two parts: one is a channel inside the housing 63, and the other is a connecting channel 69 inside the housing cover 64.

[0041] In general, the top of the hydrogen delivery passage 67 extends upward to the cover 64 and communicates with the water storage chamber 21. The upper end of the connecting channel 69 is connected to the water storage chamber 21, and the lower end abuts against the top of the channel opened inside the box 63 and communicates with the water electrolysis hydrogen production module 8 through the channel.

[0042] The hydrogen filter 68 is installed in the mounting hole below the connecting channel 69 and is pressed and fixed by the lower end of the cover 64. When the hydrogen filter 68 needs to be replaced, it can be taken out for cleaning or replacement simply by unscrewing the cover 64.

[0043] In addition, a sealing ring for the lid 64 is provided between the lid 64 and the connecting channel 69. It is usually an O-ring rubber sealing ring. The sealing ring for the lid 64 is used to ensure the airtightness between the lid 64 and the connecting channel 69 and to prevent hydrogen from leaking from the connection. The material can be food-grade silicone or fluororubber.

[0044] A rotating handle is provided on the top of the cover 64, which is integrally formed or fixedly connected to the cover 64. The rotating handle is a cross-shaped, straight, or plum blossom-shaped protrusion, which makes it easy for users to manually rotate and remove the cover 64, thereby facilitating the replacement of the hydrogen filter 68.

[0045] To further improve hydrogen dissolution efficiency and hydrogen-rich water concentration, a hydrogen filter 68 is provided in the hydrogen transport passage 67 between the hydrogen outlet 81 of the hydrolysis hydrogen production module 8 and the water storage chamber 21.

[0046] The hydrogen filter 68 can be made of microporous ceramic, titanium alloy sintered filter element or porous polymer material, and its pore size is preferably 0.1μm to 50μm.

[0047] When high-pressure hydrogen passes through the filter, it is dispersed into tiny bubbles with a diameter of ≤50μm, which significantly increases the contact area between hydrogen and drinking water and prolongs the residence time of the bubbles in the water, thereby greatly improving the hydrogen dissolution efficiency and making the concentration of hydrogen-rich water in the water storage chamber 21 stably reach more than 1200ppb.

[0048] See attached document Figure 5 The tank body 63 has a water tank cavity 62 for storing electrolyzed water. The water tank cavity 62 is connected to the float limit tube 65 and the exhaust structure 61. When the water pump 7 is working, the water in the water tank cavity 62 is pumped out and transported to the hydrolysis hydrogen production module 8. The remaining water and oxygen after electrolysis are returned to the water tank cavity 62.

[0049] See attached document Figure 10 It should be noted that in this embodiment, there is a one-way channel 60 (located on the tank body 63) between the water storage chamber 21 and the water tank 6 for conveying electrolyzed water (pure water). The opening end of the one-way channel 60 faces the water storage chamber 21, and the other end communicates with the inner cavity 62 of the water tank 6. A one-way valve 601 is provided at the junction of the one-way channel 60 and the inner cavity 62 of the water tank, so that only the water in the water storage chamber 21 can flow into the inner cavity 62 of the water tank, while the electrolyzed water in the inner cavity 62 of the water tank cannot be flushed back into the water storage chamber 21.

[0050] The one-way valve 601 is connected to the water pump 7 through a connecting pipe 602. So when the water pump 7 is started, the water in the water storage chamber 21 enters the inner chamber 62 of the water tank through the one-way valve 601.

[0051] The one-way valve 601 can be a miniature spring-loaded one-way valve or a duckbill-type one-way valve (which is existing technology, and the internal structure is not described in this embodiment). Its valve body is made of corrosion-resistant and aging-resistant food-grade fluororubber or silicone. The valve seat and the inner wall of the one-way channel 60 are fixed by interference fit or ultrasonic welding to ensure that it is normally closed when no external pressure is applied.

[0052] When the user starts the hydrogen production function through the control display screen 11, the circuit board 5 controls the water pump 7 to start working. The suction effect of the water pump 7 is transmitted to the outlet side of the one-way valve 601 through the connecting pipe 602, which generates negative pressure inside the one-way valve 601, thereby overcoming the spring force or the valve disc self-sealing force, opening the valve port, and the drinking water in the water storage chamber 21 is sucked into the inner cavity 62 of the water tank until the water level in the water tank 6 reaches the set value (monitored by the water level detection component).

[0053] When the water pump 7 stops working, the one-way valve 601 closes quickly under the combined action of its own reset force and the water pressure inside the water tank 6, cutting off the one-way channel 60 and preventing the electrolyzed water (which may contain trace amounts of electrode reaction products or residual oxygen) in the water tank 6 from flowing back into the water storage chamber 21, thereby completely eliminating cross-contamination.

[0054] Furthermore, the connecting pipe 602 is preferably made of highly elastic food-grade silicone tubing, whose inner diameter fits tightly with the interface of the one-way valve 601 and the inlet of the water pump 7. The pipe is fixed by a retaining groove inside the housing 63 to prevent it from falling off due to vibration or water flow impact. With the above design, the user does not need to manually add water to the water tank 6. The water source of the water tank 6 comes directly from the drinking water in the water storage chamber 21, but the two are physically isolated during normal operation. Water can only flow from the water storage chamber 21 into the water tank 6 in one direction, while the water in the electrolytic circulation loop will never return to the water storage chamber 21. This simplifies the user's operation and ensures drinking water safety.

[0055] See attached document Figure 2 In order to promptly discharge the by-product gases generated by electrolysis (mainly oxygen, and possibly trace amounts of chlorine, etc.) and prevent them from accumulating in the circulation loop and affecting the electrolysis efficiency, the water tank 6 is equipped with an exhaust structure 61. The exhaust structure 61 can be a one-way exhaust structure or an automatic pressure relief valve. One end of it is connected to the inner cavity of the water tank 6, and the other end can be directly connected to the atmosphere or connected to the inside of the cup holder 1 and then discharged through the vent on the outer shell.

[0056] Optionally, the exhaust structure 61 can be a miniature umbrella-shaped one-way valve or a duckbill-type one-way valve. Its valve body is integrally molded from corrosion-resistant fluororubber and installed on the top of the tank cover 64 or the upper part of the side wall of the tank body 63. The air inlet of the exhaust structure 61 is connected to the inner cavity 62 of the water tank, and the air outlet is connected to the atmosphere through a concealed vent hole opened on the outer shell of the cup seat 1. The valve is kept closed by its own elasticity under normal pressure. It will only open automatically to exhaust when the air pressure inside the water tank 6 is slightly higher than the external atmospheric pressure (e.g., more than 1.2 kPa). After exhausting, it immediately resets. This structure can not only discharge the oxygen generated by electrolysis in time, but also prevent external dust or liquid from flowing back into the water tank 6, and at the same time avoid the leakage of electrolyzed water when the cup body 2 is tilted.

[0057] In this embodiment, the exhaust structure 61 uses a waterproof and breathable membrane that can block water in one direction to achieve the purpose of allowing only oxygen to pass through. That is, the liquid in the water tank 6 cannot flow out through the exhaust structure 61, and only the oxygen generated in the water tank 6 can flow out through the exhaust structure 61.

[0058] When the hydrolysis hydrogen production module 8 is electrolyzing, the oxygen generated at the anode returns to the water tank 6 with the water flow. After escaping from the water, the oxygen is discharged through the exhaust structure 61. Since the exhaust structure 61 only allows gas to be discharged and prevents external air from entering, the gas-liquid balance of the circulation loop is ensured.

[0059] To ensure sufficient water volume for electrolysis and prevent the water pump 7 from running dry or the hydrogen production module 8 from burning dry, a water level detection component is installed in the water tank 6.

[0060] See attached document Figure 5 and attached Figure 6 In one specific embodiment, the water level detection component includes a float 66 and a float limiting tube 65. The float limiting tube 65 is vertically arranged inside the water tank 6 and communicates with the inner cavity of the water tank 6. A vent hole can be provided at the top of the float limiting tube 65 to balance the air pressure. The float 66 is arranged inside the float limiting tube 65. The density of the float 66 is less than that of water, and it can move up and down with the rise and fall of the water level.

[0061] For details, see attached. Figure 12 As shown, the cross-section of the float limiting tube 65 is arc-shaped, and there is a gap between it and the inner wall of the water tank cavity 62. The gap between the two side walls of the float limiting tube 65 and the inner wall of the water tank cavity 62 is connected to the water tank cavity 62. The electrolyzed water in the water tank cavity 62 will enter the float limiting tube 65 through the gap, causing the float 66 to float.

[0062] A sensor (such as a Hall switch, reed switch or photoelectric sensor) is provided at the bottom of the water tank 6 or at the lower end of the corresponding float limit tube 65. This is a well-known technology and will not be described in detail here. It is also not shown in the figure.

[0063] When the water level in the water tank 6 is normal, the float 66 is at a high position and the sensor outputs a normal signal; when the water level drops below the set safety threshold, the float 66 moves to a low position, the sensor triggers a signal and transmits it to the circuit board 5, the circuit board 5 controls the water pump 7 to stop working, and at the same time can issue an alarm (such as a buzzer or a prompt on the control display screen 11). This design effectively prevents equipment damage caused by water shortage.

[0064] Optionally, to improve the reliability of water level detection, a permanent magnet (such as a neodymium iron boron magnet) is pre-embedded inside the float 66. The sensor uses a reed switch or Hall effect switch and is installed on the outside of the lower end of the float limit tube 65 (not in contact with water). When the water level in the water tank 6 is normal, the float 66 is located at the upper part of the float limit tube 65, the magnet is away from the sensor, and the sensor outputs a high-level signal. When the water level drops below the safety threshold due to consumption or evaporation of electrolyzed water, the float 66 falls to the bottom of the float limit tube 65, the magnet approaches the sensor, the sensor outputs a low-level signal, the circuit board 5 immediately cuts off the power supply to the water pump 7, and controls the control display screen 11 to display the "water shortage" alarm information. To prevent the float 66 from jumping frequently due to water surface fluctuations, the circuit board 5 has a preset delay judgment program (such as executing the stop only after the signal lasts for more than 1 second) to ensure stable and reliable control action.

[0065] like Figure 3 , Figure 5As shown, in order to facilitate the installation and replacement of the hydrogen filter 68 and to optimize the internal structure of the water tank 6, at least a portion of the hydrogen delivery passage 67 is integrated into the water tank 6 in this embodiment.

[0066] In this embodiment, to further improve the adaptive adjustment capability of the hydrogen flow rate and protect the hydrogen filter 68, a combined flow guiding and diverting structure is provided in the hydrogen delivery passage 67. Specifically, a support disc 71 is fixedly installed below the hydrogen filter 68. The support disc 71 is generally in the shape of a thin circular sheet, with multiple small-diameter through holes A71a evenly distributed around its central area and multiple large-diameter through holes B71b evenly distributed around its outer periphery.

[0067] The lower end face of the support disc 71 has an integrally formed or fixedly connected plug 713 at the center, which is cylindrical or frustoconical.

[0068] See attached document Figure 13-16 Below the support disc 71, a floating valve core 72 that can float up and down is also provided in the hydrogen delivery passage 67. The floating valve core 72 has a rotating body structure, and a through groove 721 extending circumferentially is provided in the middle. The through groove 721 is an annular groove or several radial through grooves, which are used to allow hydrogen to pass through when the valve core is not lifted. The lower end of the floating valve core 72 is machined into a frustum shape. Multiple secondary through grooves 722 are evenly provided on the inclined surface 723 of the frustum along the circumferential direction. The secondary through grooves 722 extend along the generatrix of the frustum or are radially radial.

[0069] Preferably, the angle between the lower frustum-shaped inclined surface 723 of the floating valve core 72 and the horizontal plane is 30°~60°. The width of the secondary groove 722 is 0.3~0.8mm, the diameter of the hole A71a is 0.2~0.5mm, and the diameter of the hole B71b is 0.8~1.5mm. A gap of 0.5~2mm is provided between the support disc 71 and the hydrogen filter 68 to allow the hydrogen flowing out from the hole B71b to diffuse evenly to the entire lower surface of the hydrogen filter 68.

[0070] When the hydrogen flow rate and pressure generated by the hydrolysis hydrogen production module 8 are small, such as when it is just started or in low voltage hydrogen production conditions, the hydrogen cannot overcome the weight of the floating valve core 72 or the elastic force of the return spring. The floating valve core 72 remains in the lower position, and its lower end face is parallel and separated from the support disc 71 or passes through the groove 721 without being blocked by the plug 713.

[0071] At this time, hydrogen enters the middle of the floating valve core 72 through the groove 721 from bottom to top, then passes directly through the through hole A71a in the central area of ​​the support disc 71, then enters the connecting channel 69, and finally enters the water storage chamber 21.

[0072] Because the diameter of the through hole A71a is small (0.2~0.5mm), a high jet velocity can still be formed at low flow rates, generating fine hydrogen bubbles, which ensures the dissolution efficiency at low gas production. During this process, the hydrogen basically does not come into contact with the hydrogen filter 68, avoiding unnecessary pressure loss.

[0073] When the hydrogen flow rate increases and the pressure rises, such as in full-power hydrogen production, the upward thrust of the hydrogen is sufficient to overcome the gravity of the floating valve core 72 and push the floating valve core 72 upward.

[0074] As the floating valve core 72 moves upward, the slot of the through groove 721 opened on its upper end gradually approaches and finally abuts against the plug 713 at the lower end of the support disc 71, thereby completely sealing the through groove 721. At this time, the central passage is cut off, and hydrogen can no longer pass through the through hole A71a.

[0075] Instead, hydrogen is forced to flow out from the secondary groove 722 on the truncated cone slope 723 at the lower end of the floating valve core 72. Since the secondary groove 722 is located on the outer periphery, the hydrogen is ejected outward and upward from the slope and then passes through the large-diameter through hole B71b in the outer peripheral area of ​​the support disc 71.

[0076] Because the diameter of the holes B71b is relatively large (0.8~1.5mm) and there are many of them, the hydrogen gas comes into contact with the hydrogen filter 68 above at a low surface flow rate. The hydrogen filter 68 further disperses the hydrogen gas into micron-sized bubbles, and then enters the water storage chamber 21 through the connecting channel 69.

[0077] At low flow rates, the high-speed central jet ensures fine bubbles; at high flow rates, it automatically switches to the outer peripheral path, allowing hydrogen to pass through the filter evenly in a radial direction, effectively reducing surface impact and extending its service life; at the same time, it achieves pressure adaptive switching without the need for electronic control.

[0078] The following is in conjunction with the appendix Figures 6 to 8 The specific structure of the water electrolysis hydrogen production module 8 is described in detail. The water electrolysis hydrogen production module 8 adopts a proton exchange membrane (PEM) electrolyzer structure, which is cylindrical or square in shape, including an upper pressure plate 84, a lower pressure plate 85, an anode plate 86, a cathode plate 87, and a proton exchange membrane 88 located between the anode plate 86 and the cathode plate 87. An electrolyzer is formed between the anode plate 86 and the cathode plate 87.

[0079] See attached document Figure 7-9 Specifically, both the anode plate 86 and the cathode plate 87 are made of titanium alloy substrate, and the surface can be coated with platinum group metals to enhance catalytic activity and corrosion resistance. An anode groove 89 is formed on the inner side of the anode plate 86 (the side facing the proton exchange membrane 88), and a cathode groove 810 is formed on the inner side of the cathode plate 87.

[0080] The proton exchange membrane 88 is sandwiched between the anode tank 89 and the cathode tank 810 and sealed by a sealing ring (such as a fluororubber gasket). The upper pressure plate 84 and the lower pressure plate 85 are located on the back side of the anode plate 86 and the cathode plate 87, respectively. The above layers are pressed and fixed by multiple series bolt assemblies. Insulating gaskets 811 can also be provided between the upper pressure plate 84 and the cathode plate 87, and between the lower pressure plate 85 and the anode plate 86 to prevent short circuits.

[0081] Specifically, an independent fluororubber sealing gasket is provided between the anode plate 86 and the proton exchange membrane 88, and between the cathode plate 87 and the proton exchange membrane 88. The shape of the sealing gasket matches the contour of the anode groove 89 and the cathode groove 810 on the electrode plate. When the upper pressure plate 84 and the lower pressure plate 85 are tightened by bolts, the sealing gasket is uniformly compressed, completely isolating the water flow channel on the anode side from the hydrogen channel on the cathode side, and preventing electrolyzed water from leaking to the outside from the edge of the module. In addition, miniature O-rings are also installed at the pipe joints of the module water inlet 82, module water outlet 83 and hydrogen outlet 81 to ensure the airtightness of the external pipeline connection.

[0082] It should be noted that a sealing ring is provided between the anode plate 86 and the proton exchange membrane 88, and an elastic sealing element is provided between the cathode plate 87 and the proton exchange membrane 88. The sealing ring is usually made of fluororubber or silicone and is used to seal the electrolytic cell to prevent leakage of electrolyzed water and cross-flow of hydrogen and oxygen gas. When the upper and lower pressure plates are locked, the sealing ring is compressed and deformed to form a reliable seal.

[0083] Both the anode tank 89 and the cathode tank 810 are provided with multiple crisscrossing flow channels (such as serpentine flow channels, parallel flow channels or grid flow channels) to increase the contact area between the electrolyzed water and the electrodes and promote mass transfer. The anode tank 89 is connected to the module inlet 82 and the module outlet 83, and the cathode tank 810 is connected to the hydrogen outlet 81. Gas nozzles or pipe joints are provided at the module inlet 82, the module outlet 83 and the hydrogen outlet 81 for easy connection to external pipelines.

[0084] After the first use or after a long period of non-use, the user only needs to add purified water to the water storage chamber 21 of the cup body 2, and then start the "water replenishment" mode through the control display screen 11.

[0085] At this time, the water pump 7 is running, and the pure water in the water storage chamber 21 is drawn into the water tank 6 through the one-way channel 60 and the one-way valve 601. At the same time, the exhaust structure 61 remains open to expel the air in the inner cavity 62 of the water tank. When the water level detection component detects that the water level in the water tank 6 has reached the highest set value, the circuit board 5 automatically stops the water pump 7 and prompts "water replenishment complete", and the user can start normal hydrogen production.

[0086] Specifically, water pump 7 pumps the electrolyzed water (pure water) in water tank 6 into anode tank 89 through module inlet 82. Under the action of DC electric field, an oxidation reaction occurs on the anode side, and the generated oxygen and unreacted water flow out from module outlet 83 and return to water tank 6. Oxygen in the water is discharged from the exhaust structure 61 of the water tank 6. Hydrogen ions migrate through the proton exchange membrane 88 to the cathode tank 810 under the drive of the electric field. They gain electrons on the cathode side to generate hydrogen gas. The generated hydrogen gas is output from the hydrogen outlet 81, passes through the hydrogen transport passage 67 and the hydrogen filter 68, and enters the water storage chamber 21, where it dissolves in drinking water to form hydrogen-rich water.

[0087] Since the water storage chamber 21 is completely isolated from the water tank 6 in this embodiment, electrolyzed water will not enter the water storage chamber 21, and the water in the water storage chamber 21 will not enter the electrolysis circuit. Therefore, users can add tea, juice, coffee and other beverages to the water storage chamber 21 at will. These substances will not come into contact with the electrolysis module and will not cause contamination of the proton exchange membrane 88 or scale buildup on the electrodes.

[0088] Meanwhile, oxygen and any byproducts generated at the anode during electrolysis are discharged through the exhaust structure 61, preventing them from entering the water storage chamber 21 and ensuring the pure taste and highest safety standards of the drinking water.

[0089] In addition, the cup holder 1 and the cup body 2 are detachably connected (for example, the cup holder 1 has an internal thread at the top and the cup body 2 has an external thread at the bottom, and the connection and separation can be achieved by rotation).

[0090] To ensure a tight seal at the connection, a food-grade silicone sealing ring (not shown) is fitted under the external thread at the bottom of the cup body 2. This sealing ring has an O-shaped or rectangular cross-section. When the cup body 2 is screwed onto the cup holder 1, the sealing ring is pressed between the bottom end face of the cup body 2 and the top stepped surface of the cup holder 1, forming a reliable watertight and airtight barrier. Simultaneously, an annular rib is provided on the top edge of the cup holder 1, which engages with the annular groove at the bottom of the cup body 2 to further prevent accidental water leakage into the electronic component area inside the cup holder 1.

[0091] The water tank 6 is integrally connected to the inner wall of the cup holder 1 (e.g., by ultrasonic welding or injection molding) or fixed by a sealing ring and buckle, thereby forming a relatively closed water-proof cavity at the bottom of the cup holder 1. Electrical components such as the battery 4, circuit board 5, and water pump 7 can be placed in this water-proof cavity to achieve water and electricity separation and improve safety.

[0092] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A hydrogen-rich water cup, comprising a cup base (1) and a cup body (2), wherein the cup body (2) is provided with a water storage cavity (21) for storing drinking water, characterized in that, The cup holder (1) is provided with a water tank (6) for holding water for electrolysis and a hydrolysis hydrogen production module (8) for electrolyzing water to generate hydrogen. The water for electrolysis circulates between the water tank (6) and the hydrolysis hydrogen production module (8) through pipelines. The hydrogen output port of the hydrolysis hydrogen production module (8) is unidirectionally connected to the water storage chamber (21) so as to introduce the hydrogen generated by electrolysis into the drinking water in the water storage chamber (21); It also includes a water pump (7), the inlet and outlet of which are connected to the water tank (6) and the hydrolysis hydrogen production module (8), respectively; The hydrogen outlet (81) of the hydrolysis hydrogen production module (8) is connected to the water storage chamber (21) through a hydrogen delivery passage (67), and the hydrogen delivery passage (67) is provided with a hydrogen filter (68) for dispersing hydrogen into tiny bubbles. The hydrogen delivery passage (67) is also provided with a support disc (71) located below the hydrogen filter (68). The support disc (71) has multiple small-diameter through holes A (71a) located in the central area and multiple large-diameter through holes B (71b) located in the outer peripheral area. A plug (713) is provided at the center of the lower end face of the support disc (71). The hydrogen delivery passage (67) is also provided with a floating valve core (72) located below the support disc (71). The floating valve core (72) has a through groove (721) in the middle and its lower end is frustum-shaped. Multiple through secondary grooves (722) are distributed circumferentially on the inclined surface (723) of the frustum. When the hydrogen pressure is lower than the set value, the floating valve core (72) is not lifted, and the hydrogen enters the water storage chamber (21) through the through groove (721) and the through hole A (71a) in sequence; when the hydrogen pressure is higher than the set value, the floating valve core (72) is lifted, and its upper end face abuts against the plug (713) to seal the groove opening of the through groove (721), and the hydrogen flows out from the secondary through groove (722) and then contacts the hydrogen filter (68) through the through hole B (71b).

2. The hydrogen-rich water cup according to claim 1, characterized in that, The cup holder (1) is detachably connected to the cup body (2), and the water tank (6) is integrally connected to or sealed to the inner wall of the cup holder (1).

3. The hydrogen-rich water cup according to claim 1, characterized in that, The water tank (6) is provided with an exhaust structure (61), which is used to discharge the by-product gas generated by electrolysis.

4. A hydrogen-rich water cup according to claim 1, characterized in that, The water tank (6) is equipped with a water level detection component, which includes a float (66) and a float limiting tube (65). The float limiting tube (65) is connected to the inner cavity (62) of the water tank. The float (66) is set inside the float limiting tube (65) and can move with the rise and fall of the water level. The bottom or corresponding position of the water tank (6) is equipped with a sensor to detect the position of the float (66) and control the water pump (7) to stop working when the water level is lower than the set value.

5. A hydrogen-rich water cup according to claim 4, characterized in that, The cross-section of the float limiting tube (65) is arc-shaped, and there is a gap between it and the inner wall of the water tank cavity (62). The gap forms a channel for the electrolytic water to enter the float limiting tube (65).

6. A hydrogen-rich water cup according to claim 1, characterized in that, The hydrogen delivery passage (67) is at least partially formed inside or through the water tank (6), with its upper end connected to the water storage cavity (21) and its lower end connected to the hydrogen outlet (81).

7. A hydrogen-rich water cup according to claim 1, characterized in that, The hydrolysis hydrogen production module (8) includes an anode plate (86), a cathode plate (87), and a proton exchange membrane (88) located between the anode plate (86) and the cathode plate (87), with an electrolytic cell formed between the anode plate (86) and the cathode plate (87).

8. A hydrogen-rich water cup according to claim 7, characterized in that, The electrolytic cell includes an anode tank (89) located in the anode plate (86) and a cathode tank (810) located in the cathode plate (87). The anode tank (89) is connected to the water inlet (82) and the water outlet (83), and the cathode tank (810) is connected to the hydrogen outlet (81).

9. A hydrogen-rich water cup according to claim 8, characterized in that, The anode tank (89) and / or cathode tank (810) are provided with multiple flow channels to increase the contact area between the electrolytic water and the electrodes.

10. A hydrogen-rich water cup according to claim 9, characterized in that, The hydrolysis hydrogen production module (8) also includes an upper pressure plate (84) and a lower pressure plate (85), wherein the anode sheet (86), cathode sheet (87) and proton exchange membrane (88) are stacked and pressed between the upper pressure plate (84) and the lower pressure plate (85).

11. A hydrogen-rich water cup according to claim 1, characterized in that, The water tank (6) has a water tank cavity (62) for storing water for electrolysis, and a one-way channel (60) is provided on the water tank (6) for one-way communication between the water storage cavity (21) and the water tank cavity (62).

12. A hydrogen-rich water cup according to claim 11, characterized in that, A one-way valve (601) is provided in the one-way channel (60), and the one-way valve (601) is connected to the water pump (7) through a pipe.

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