Hydrogen water cup

By introducing a power module into the hydrogen water cup to electrolyze water to generate hydrogen water, and by using a straw and pressure relief valve design, the problems of low hydrogen solubility and overflow are solved, thus achieving the maintenance of hydrogen concentration and the improvement of solubility.

CN223722886UActive Publication Date: 2025-12-26HEBEI HYDROGEYUAN NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202423017471.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-03-27
Filing Date
2024-12-06
Publication Date
2025-12-26
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

The hydrogen solubility in existing hydrogen water cups is low, and hydrogen is prone to overflow during use, resulting in a decrease in hydrogen concentration and waste.

Method used

A hydrogen water cup has been designed, which includes a power module for electrolyzing water to generate hydrogen water, a straw design to prevent hydrogen from overflowing, and a pressure relief valve to regulate the internal pressure and ensure hydrogen concentration and solubility.

Benefits of technology

It improves the solubility of hydrogen in water, prevents hydrogen from overflowing, ensures the hydrogen concentration in the hydrogen water cup, and enhances the user experience and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a hydrogen water cup. The hydrogen water cup comprises a cup body, a suction pipe, a power module and a pressure release valve. A cavity used for containing liquid is formed in the cup body, the suction pipe is communicated with the cavity and used for sucking the liquid in the cavity out of the cavity under the external action suction force, and a pipe opening of the suction pipe is higher than the pressure release valve in the height direction of the cup body. The power supply module is arranged at the bottom of the cup body, at least part of the power supply module extends to the cavity, and the power supply module is configured to electrolyze liquid in the cavity; the pressure release valve is arranged at the end, away from the power module, of the cup body and is configured to adjust the pressure in the cavity so as to increase the hydrogen content of liquid in the cavity. According to the hydrogen water cup provided by the invention, the solubility of hydrogen in water can be improved by about 8-10%, and the hydrogen water cup has a better effect on promoting the metabolism of a user body and improving the immunity.
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Description

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202420612762.6, filed in China on March 27, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of water cup technology, and more specifically, to a hydrogen water cup. Background Technology

[0004] In recent years, scholars from various countries have discovered that hydrogen gas has significant therapeutic effects on nearly a hundred common diseases. A popular view is that hydrogen molecules have selective antioxidant properties, actively combining with harmful free radicals to form water, thereby eliminating these free radicals. One way the human body utilizes hydrogen is by dissolving it in water. Hydrogen uses water as a carrier to enter the digestive system, is absorbed, enters the bloodstream, and reaches various organs, thus reducing harmful free radicals in the body. This provides a treatment method for diseases caused by oxidative damage and, more importantly, a preventative measure against disease and aging. Hydrogen water has a wide range of applications, such as drinking, gargling, foot baths, and bathing, which are beneficial to health. Currently, most mainstream hydrogen water cups integrate a conventional water cup with a hydrogen generation module. However, due to the low pressure inside the hydrogen water cup, the liquid cannot be efficiently electrolyzed, resulting in low hydrogen solubility and a low hydrogen content in the water. Furthermore, when users use hydrogen water cups, the open lid allows for significant contact between the liquid and air, causing the hydrogen source to overflow. Utility Model Content

[0005] The purpose of this disclosure is to address technical problems in related technologies by providing a hydrogen water cup, comprising: a cup body having an internal cavity for holding liquid; a straw having a connecting portion communicating with the cavity; a power module connected to the bottom of the cup body and extending at least partially into the cavity, configured to electrolyze the liquid in the cavity; and a pressure relief valve disposed at one end of the cup body away from the power module, configured to adjust the pressure in the cavity, wherein the opening of the straw is higher than the pressure relief valve in the height direction of the cup body.

[0006] In some embodiments, the power module includes: a power module configured to provide electrical energy; and a water electrolysis module connected at the bottom to the power module and configured to electrolyze the liquid.

[0007] In some embodiments, the water electrolysis module is entirely located inside the cavity, configured to increase the contact area between the water electrolysis module and the liquid inside the cavity.

[0008] In some embodiments, the straw side wall is provided with a water level line configured to limit the highest liquid level in the straw.

[0009] In some embodiments, the pressure relief valve is an electromagnetic pressure relief valve, which is opened in response to the liquid surface in the straw reaching the water level line, for controlling the liquid in the straw not to exceed the water level line.

[0010] In some embodiments, the straw is internally provided with a valve configured to prevent the liquid in the straw from flowing backward.

[0011] In some embodiments, the valve is provided between the pipe opening and the water level line.

[0012] In some embodiments, the distance from the connection part to the power module is much smaller than the distance from the connection part to the pressure relief valve.

[0013] In some embodiments, the cavity inner wall is provided with a water injection line for limiting the highest water injection level of the liquid in the cavity.

[0014] In some embodiments, the power module comprises a switch having an open state and a closed state, configured to control the working state of the electrolytic water module.

[0015] Compared with the related art, the above-mentioned scheme of the embodiments of the present disclosure has at least the following beneficial effects:

[0016] The hydrogen water cup provided by the present disclosure generates hydrogen water by electrolyzing water through the power module, and is provided with a straw to avoid the undissolved hydrogen gas in the hydrogen water cup overflowing into the air along with the action of opening the cup cover when the user drinks the hydrogen water, thereby ensuring the hydrogen concentration in the hydrogen water cup. The setting of the pressure relief valve can avoid the hydrogen water overflowing from the straw due to excessive pressure in the hydrogen water cup during the electrolysis of water.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure. It is apparent that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings. In the drawings:

[0019] Figure 1 is a structural schematic diagram of a hydrogen water cup according to an exemplary embodiment.

[0020] Figure 2 FIG. 1 is a structural schematic diagram of a power module according to an example embodiment.

[0021] Figure 3 FIG. 2 is a structural schematic diagram of a straw valve according to an example embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0023] Hydrogen water cup 1000; cup cover 100; pressure relief valve 110; cup body 200; straw 300; straw mouth 301; connecting part 310; valve 320; hard sheet film 321; power module 400; power module 410; switch 411; electrolytic water module 420. DETAILED DESCRIPTION

[0024] In order to make the purposes, technical solutions and advantages of the present disclosure clearer, the following will further describe the present disclosure in detail with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present disclosure.

[0025] The terms used in the embodiments of the present disclosure are only for the purpose of describing particular embodiments and are not intended to limit the present disclosure. The singular forms "a", "an" and "the" used in the embodiments of the present disclosure and the appended claims are intended to include plural forms, unless the context clearly indicates otherwise. "Multiple" generally includes at least two, and other quantifiers are similar.

[0026] It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present disclosure to describe, these descriptions should not be limited to these terms. These terms are only used to distinguish the described objects. For example, without departing from the scope of the embodiments of the present disclosure, the first can also be referred to as the second, similarly, the second can also be referred to as the first. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship. The singular forms "a", "said" and "the" are also intended to include plural forms, unless the context clearly indicates otherwise.

[0028] In the description of the present disclosure, it should be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] It should also be noted that the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the goods or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such goods or devices. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of another identical element in the goods or devices including the element.

[0030] In the related art, with the development of hydrogen energy, the application effect of hydrogen in the medical field is also gradually explored by people. In 2013, the Shanghai Hydrogen Molecular Medical Society was established, and in the same year, "Hydrogen Molecular Biology" was published; In 2014, the Hydrogen Molecular Biology Medical Branch of China Medical Promotion Association was established; Since 2016, hydrogen water cups, hydrogen suction machines and other hydrogen energy health products have appeared in China, and the market has increased year by year; In 2020, Xu Kecheng published "Hydrogen Gas Cancer Control Theory and Practice", and hydrogen medical devices obtained clinical use license. Hydrogen medical devices are gradually entering people's daily life. At present, the mainstream hydrogen water cup mostly adopts the way of integrating a conventional water cup with a hydrogen module. After pure water is filled into the hydrogen water cup, the water at the bottom enters the hydrogen module, and hydrogen is generated by electrolysis of water through the built-in battery. However, due to the small pressure in the hydrogen water cup, the liquid cannot be efficiently electrolyzed in the hydrogen water cup, and the hydrogen solubility is low, resulting in low hydrogen content in the water in the conventional hydrogen water cup.

[0031] Therefore, the present disclosure provides a hydrogen water cup, comprising: a cup body, the cup body has a cavity inside for holding liquid; a straw having a connecting portion, the connecting portion being in communication with the cavity; a power module connected to the bottom of the cup body and at least partially extending into the cavity, configured to electrolyze the liquid in the cavity; and a pressure relief valve arranged at one end of the cup body away from the power module, configured to adjust the pressure in the cavity, wherein the straw mouth is higher than the pressure relief valve in the height direction of the cup body.

[0032] The hydrogen water cup provided by the present disclosure electrolyzes water through a power module to generate hydrogen water, and a straw is arranged to avoid the undissolved hydrogen gas in the hydrogen water cup from overflowing into the air when the cup cover is opened when the user drinks the hydrogen water. In the process of sucking out the hydrogen water through the straw, the hydrogen gas concentration in the hydrogen water cup can be ensured, and the pressure in the hydrogen water cup can be increased to improve the solubility of the liquid and the hydrogen gas in the hydrogen water cup. The arrangement of the pressure relief valve can avoid the hydrogen water from overflowing out of the straw due to excessive pressure in the hydrogen water cup during the electrolysis of water.

[0033] The optional embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0034] In some embodiments, the hydrogen water cup 1000 includes a cup body 200, a straw 300, a power module 400, and a pressure relief valve 110. The cup body 200 has a cavity inside for containing liquid, and the straw 300 communicates with the cavity and is used to suck out the liquid in the cavity under the action of external suction. The power module 400 is arranged at the bottom of the cup body 200, at least part of the power module 400 extends into the cavity, and the pressure relief valve 110 is arranged on the side of the cup body 200 away from the power module 400 and is configured to adjust the pressure in the cavity to increase the hydrogen content of the liquid in the cavity. The hydrogen water cup 1000 provided by the present disclosure can increase the solubility of hydrogen in water by about 8%-10%, which has a better effect on promoting the metabolism of the user's body and improving immunity.

[0035] In some embodiments, as shown in Figure 1 The cup body of the hydrogen water cup 1000 is composed of a cup body 200, a base, and a cup cover 100. The cup body 200 has a cavity inside for containing liquid.

[0036] The shape of the cup body can be a regular shape such as a cylinder, a cuboid, a cube, a cone, or other irregular shapes, and the present disclosure does not make specific limitations thereon. The cup body can be composed of transparent or opaque materials. The shape of the cavity for containing liquid can be a regular shape such as a cylinder, a cuboid, a cube, a cone, or other irregular shapes. The liquid can be a beverage such as drinking water, fruit juice, tea, etc., or can be domestic water such as water for washing, etc., and the user can select the type of liquid according to his / her own needs.

[0037] In some embodiments, the power module 400 can be configured as the base of the cup body. The power module 400 includes a power module 410 and an electrolytic water module 420, as shown in Figure 2As shown, the power module 410 is connected with the electrolytic water module 420 for providing power for the electrolytic water module 420, and the power module 410 is provided with a switch 411, by which the working state of the electrolytic water module 420 can be controlled.

[0038] Specifically, the switch 411 has an open state and a closed state, in response to the switch 411 being in the open state, the electrolytic water module 420 starts to work to electrolyze the liquid in the cavity; in response to the switch 411 being in the closed state, the electrolytic water module 420 stops working and no longer electrolyzes the liquid in the cavity.

[0039] In some embodiments, the electrolytic water module 420 can be configured in a long strip shape, and the bottom of the electrolytic water module 420 is connected with the power module 410, when the power module 400 is assembled with the cup body 200, the electrolytic water module 420 is entirely inside the cavity, configured to increase the contact area of the electrolytic water module 420 with the liquid, to reduce the water temperature in the cavity by using the heat absorption characteristics of electrolytic water, and to improve the solubility of hydrogen in water and the hydrogen content of the liquid in the cavity.

[0040] The electrolytic water module 420 is used to ionize the liquid in the cavity, which can ionize the drinking water in the cavity into drinking water containing hydrogen, which has a better effect on the body of the drinker.

[0041] In some embodiments, the electrolytic water module 420 can be a platinum electrode electrolytic water module. Platinum electrode has high catalytic activity and stability, and can efficiently catalyze electrolysis reaction at a lower voltage, so that water molecules in drinking water are decomposed into hydrogen and oxygen, thereby obtaining electrolytic water rich in hydrogen, and without introducing other harmful substances, ensuring the safety and drinkability of hydrogen water.

[0042] It should be separately pointed out that the specific structure of the electrolytic water module 420 is not limited in the present disclosure, and the structure emphasized by the present disclosure is that the design of the straw 300 of the hydrogen water cup 1000 and the cooperation of the pressure relief valve and the straw increase the solubility of hydrogen in the hydrogen water cup 1000.

[0043] In some embodiments, the power module 410 also has a charging port, which can be connected with a power source through an external charging line to supply power to the power module 410. The power module 410 has a certain storage power capacity, so that the hydrogen water cup 1000 can still supply the electrolytic water module 420 to work when disconnected from the power source.

[0044] In some embodiments, the hydrogen water cup 1000 further comprises a straw 300, the straw 300 having a connecting portion 310, through which the straw 300 is in communication with the cup body 200.

[0045] Specifically, as shown in the drawings, the straw 300 extends along the height direction of the cup body, and the connecting portion 310 has a certain bending curvature, which is suitable for connecting the straw 300 with the cup body 200. The inside of the straw 300 is in communication with the cavity in the cup body 200, and the user can use the straw 300 to suck out the liquid in the cavity. Figure 1

[0046] In some embodiments, due to the wicking effect and the action of liquid surface tension, the liquid level in the straw 300 is slightly higher than the page height in the cavity. Therefore, in the height direction of the cup body 200, the straw mouth 301 of the straw 300 is higher than the cup cover 100 of the hydrogen water cup 1000.

[0047] When the electrolytic water module 420 is in a working state, hydrogen gas is generated due to the ionization reaction of water, part of the hydrogen gas is combined with water to form drinking water containing hydrogen elements. Under the action of hydrogen gas, the liquid level in the straw 300 rises, and as the liquid level in the straw 300 rises, the pressure in the straw 300 increases, thereby increasing the pressure in the cavity and accelerating the reaction rate of hydrogen elements and liquid in the cavity, thereby improving the solubility of hydrogen gas and the hydrogen content of the liquid.

[0048] In some embodiments, due to the arrangement of the straw 300, the user does not need to open the cup cover when drinking hydrogen water. Therefore, the hydrogen gas that is not completely combined with the liquid in the hydrogen water cup 1000 will not overflow into the air, causing waste of hydrogen water. On the other hand, when the user uses the straw 300 to suck out the liquid from the inside of the hydrogen water cup 1000, if the pressure relief valve is not opened, the inside of the hydrogen water cup 1000 can be regarded as a closed space at this time. At this time, the increase of the pressure in the hydrogen water cup 1000 can improve the solubility of the liquid and hydrogen in the hydrogen water cup 1000.

[0049] In some embodiments, in the height direction of the cup body 200, the straw mouth 301 of the straw 300 is higher than the cup cover 100 of the hydrogen water cup 1000. Since the straw 300 is in communication with the cavity, when the straw mouth 301 of the straw 300 is higher than the cup mouth of the cup body, there is a pressure difference between the gas in the cavity and the gas in the straw 300, which can promote the increase of the pressure in the cavity, thereby increasing the reaction rate.

[0050] ​In some embodiments, the distance from the connecting portion 310 to the power module 400 is much smaller than the distance from the connecting portion 310 to the pressure relief valve 110. When the user drinks water using the straw 300, the straw 300 will suck out the liquid at the bottom of the cavity. Since the electrolytic water module 420 is adjacent to the position, the liquid at the position has a higher hydrogen content, which is more conducive to the user's use demand for hydrogen-rich drinking water.

[0051] When drinking carbonated beverages using the straw 300, the corrosion of carbonic acid to human teeth can be reduced. In another aspect, when the connecting portion 310 is arranged adjacent to the power module 400, the user will suck out the liquid at a lower liquid level in the cavity when using the straw 300 to drink water, reducing the number of times the user opens the cup cover 100 to drink directly, and improving the user's experience.

[0052] In some embodiments, the sidewall of the straw 300 is provided with a water level line. When the electrolytic water module 420 is not working and under the action of no external force, the liquid level of the liquid in the straw 300 does not exceed the water level line. If the highest liquid level in the straw 300 exceeds the water level line, it is very likely that the liquid will overflow from the straw 300 spout 301.

[0053] Therefore, the present disclosure is provided with a pressure relief valve 110 on the bottle cover. When the highest liquid level in the straw 300 exceeds the water level line, the pressure relief valve 110 can be opened to reduce the pressure in the cavity, so that the liquid level in the straw 300 is below the water level line, avoiding the liquid from flowing out of the straw 300 spout 301.

[0054] In some embodiments, the pressure relief valve 110 can be controlled by electromagnetic induction. In response to the liquid level in the straw 300 reaching the water level line, the pressure relief valve 110 is opened to reduce the pressure in the cavity, and is configured to control the stable air pressure in the cavity to ensure that the liquid in the straw 300 does not exceed the water level line.

[0055] In some embodiments, the pressure relief valve 110 releases a pressure that is at least the pressure required for the liquid to rise from the height of the water level line to the liquid level height above the water level line at the release moment, so as to ensure that after the release is completed, the liquid level in the straw 300 is below the water level line, avoiding the liquid from overflowing from the spout 301 due to insufficient release.

[0056] It should be separately pointed out that the control method of the pressure relief valve 110 is not specifically limited in the present disclosure, including but not limited to the manual control and electromagnetic induction control mentioned above, and can also be achieved by remote sensing control, infrared induction control and other control methods that can control the opening or closing of the pressure relief valve 110.

[0057] In some embodiments, the straw 300 is internally provided with a valve 320, which can be arranged between the water level line and the pipe opening 301, and is configured to prevent the liquid in the straw 300 from flowing backward.

[0058] Specifically, as shown in the drawings, the valve 320 can be a plurality of inverted hard sheet membranes 321. When no external force is applied, the plurality of hard sheet membranes 321 are gathered together and in a closed state, which can block the liquid in the straw 300 from flowing out of the pipe opening 301. When an external force is applied, such as when the pressure in the cavity is too high or the user uses the straw 300 to suck liquid or air into the oral cavity, the valve 320 will be forced to open outward to form an open channel. The straw 300 provided with the valve 320 can prevent external dust or other impurities from entering the cavity through the straw 300, thereby avoiding pollution. Figure 3

[0059] In some embodiments, the valve 320 in the straw 300 is provided with at least one, and can also be provided with a plurality of valves. The plurality of valves 320 are arranged at different positions inside the straw 300, respectively, and are used to prevent the liquid in the straw 300 from flowing.

[0060] It should be noted that the present disclosure does not specifically limit the arrangement position of the valve 320. The valve 320 can be arranged between the water level line and the pipe opening 301, or between the water level line and the connecting portion 310, or at any position inside the straw 300.

[0061] In some embodiments, during the electrolysis of water, excessive gas generated in the hydrogen water cup 1000 can cause the pressure in the hydrogen water cup 1000 to be too high, which can damage the closed state of the valve 320 by the gas or liquid. If the closed state of the valve 320 is damaged, the valve 320 will be forced to open outward to form an open channel, allowing external air to enter the hydrogen water cup 1000 or hydrogen gas in the hydrogen water cup 1000 to overflow into the air, causing waste of hydrogen source. The pressure in the hydrogen water cup 1000 can be appropriately adjusted by the pressure relief valve 110 to avoid a too large pressure difference between the inside and outside of the hydrogen water cup 1000, or the liquid in the straw 300 cannot be sucked out, or the cup cover of the hydrogen water cup 1000 is difficult to open.

[0062] In some embodiments, the cup cover 100 is used to close the top of the cavity, and the cup cover 100 is provided with a pressure relief valve 110 for adjusting the pressure in the cavity. When the pressure in the cavity is too high, causing the liquid level in the straw 300 to exceed the water level line, the pressure relief valve 110 can be opened to reduce the pressure in the cavity.

[0063] ​In other embodiments, instead of the pressure relief valve 110, a pressure regulating group valve can be used, which can be used to increase the pressure inside the cavity, accelerate the ionization speed of the liquid in the cavity, and increase the hydrogen content of the liquid, in addition to pressure relief.

[0064] In some embodiments, the inner wall of the cavity is provided with a water injection line for limiting the maximum water injection level of the liquid in the cavity. When the power module 410 is turned on and the electrolytic water module 420 starts to work, the liquid in the cavity will generate a large number of bubbles under the driving of the electrolytic water module 420. Further, the pressure in the cavity increases, and the liquid level in the cavity rises. Therefore, the amount of water injection in the cavity needs to be limited to avoid the cup cover 100 being opened due to excessive water injection or excessive water pressure, causing water spilling or the cup cover 100 bouncing up and other accidents.

[0065] The specific structure, working principle, and beneficial effects of the hydrogen water cup 1000 provided by the embodiments of the present disclosure can refer to the hydrogen water cup 1000 described in any of the above embodiments, and will not be repeated here.

[0066] Finally, it should be noted that: the embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to. For the system or device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method part.

[0067] The above embodiments are only used to illustrate the technical solutions of the present disclosure, but not limit them; although the foregoing disclosure has been made in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A hydrogen water cup, characterized by, The hydrogen water cup comprises: a cup body, which has a cavity inside for containing liquid; a straw, which has a connecting part in communication with the cavity; a power module, which is connected to the bottom of the cup body and extends at least partially into the cavity, and is configured to electrolyze the liquid in the cavity; and a pressure relief valve, which is arranged at the end of the cup body away from the power module, and is configured to adjust the pressure in the cavity, wherein the mouth of the straw is higher than the pressure relief valve in the height direction of the cup body. The power module comprises:

2. The hydrogen water cup according to claim 1, characterized by a power module, which is configured to provide electric energy; an electrolytic water module, which is connected to the bottom of the power module, and is configured to electrolyze the liquid.

3. The hydrogen water cup according to claim 2, wherein the electrolytic water module is arranged entirely inside the cavity, and is configured to increase the contact area between the electrolytic water module and the liquid in the cavity.

4. The hydrogen water cup according to claim 1, wherein the sidewall of the straw is provided with a water level line, which is configured to limit the maximum liquid level in the straw.

5. The hydrogen water cup according to claim 4, wherein the pressure relief valve is an electromagnetic pressure relief valve, which is opened in response to the liquid surface in the straw reaching the water level line, and is used to control the liquid in the straw not to exceed the water level line.

6. The hydrogen water cup according to claim 4, wherein the straw is provided with a valve inside, which is configured to prevent the liquid in the straw from flowing backward.

7. The hydrogen water cup according to claim 6, wherein the valve is arranged between the mouth and the water level line.

8. The hydrogen water cup according to claim 2, wherein the distance from the connecting part to the power module is much smaller than the distance from the connecting part to the pressure relief valve.

9. The hydrogen water cup according to claim 1, wherein the inner wall of the cavity is provided with a water filling line, which is used to limit the maximum water filling level of the liquid in the cavity. The power module comprises:

10. The hydrogen water pitcher of claim 2, wherein, a switch, which has an open state and a closed state, and is configured to control the working state of the electrolytic water module. ​