Multifunctional water cup with temperature difference power generation hydrogen production, phase change energy storage and light absorption heating functions

Abstract

The utility model discloses a multifunctional water cup with thermoelectric power generation hydrogen production, phase change energy storage and light absorption heating functions, relates to the technical field of thermoelectric power generation, and solves the problems that an existing water cup is single in function, and the use scene of a hydrogen-rich water cup is limited by a power supply. A light absorption coating is arranged on the inner side of the outer wall of a cup body; a thermoelectric power generation sheet is arranged outside the middle wall; a water storage cavity is formed in the inner wall, a phase change heat storage cavity is formed between the inner wall and the middle wall, and a vacuum / heat-conducting medium double-working-condition cavity is formed between the middle wall and the outer wall; a transmission device is arranged at the lower end of the piston; a heat-conducting medium liquid storage cavity is formed in the bottom of the cup body and is communicated with the double-working-condition cavity; an electricity storage assembly and a hydrogen production assembly are arranged in the cup base. Heating and heat preservation of water are achieved by converting the working state of the vacuum / heat-conducting medium double-working-condition cavity and being matched with the light absorption coating and the phase change heat storage material. The waste heat of water is utilized to realize thermoelectric power generation, so that energy conservation and efficiency improvement are realized, and hydrogen-rich water is formed by hydrogen production.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of thermoelectricity, specifically to a multifunctional water cup with thermoelectricity hydrogen production, phase change energy storage and light absorption heating. BACKGROUND

[0002] In modern life, water cups are essential in people's daily life, and there are various types. With the improvement of people's living standards and the diversification of life scenes, people have more requirements for the functions of water cups. People hope that water cups can be used in different scenes, such as outdoors, summer or winter, and at the same time, they can meet multiple functions in one, such as heat preservation, rapid cooling and heating, etc. At the same time, with the growth of people's health awareness, new requirements are put forward for water quality, and hydrogen-rich water gradually appears in people's life. Although there are various types of water cups on the market, there are still some deficiencies in meeting the diversified needs of consumers, such as traditional water cups that can only achieve single heat preservation function and cannot quickly reach the appropriate drinking water temperature; at the same time, the heat loss of the water cup is an irreversible process, which makes the heat preservation efficiency not high, even if the water cup is heated, the charging also needs power supply, and the use scene is limited; the hydrogen production process of the hydrogen-rich water cup also cannot be separated from the power supply, and the use range is limited. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses in order to solve the above-mentioned existing water cup function single, hydrogen-rich water cup use scene is limited by power, hereby proposes a kind of multifunctional water cup with thermoelectricity hydrogen production, phase change energy storage and light absorption heating. The utility model discloses heat and heat preservation of water are realized by the working state of conversion vacuum / heat-conducting medium double working condition cavity and cooperate light absorption coating and phase change heat storage material;At the same time, the waste heat of water is used to realize thermoelectricity, which realizes energy saving and efficiency increasing, and can be used to produce hydrogen to form hydrogen-rich water beneficial to health when needed.

[0004] The utility model discloses a kind of multifunctional water cup with thermoelectricity hydrogen production, phase change energy storage and light absorption heating, it specifically includes cup cover, cup body and cup seat;Cup body upper end is provided with cup cover, lower end is provided with cup seat;Cup body includes inner wall, middle wall and outer wall, the outer wall is transparent material, inner surface is provided with light absorption coating;Difference generating sheet is provided on the outer surface of middle wall;Inner wall is provided with water storage cavity, and phase change heat storage cavity is arranged between inner wall and middle wall, and vacuum / heat-conducting medium double working condition cavity is arranged between middle wall and outer wall;Vacuum / heat-conducting medium double working condition cavity is provided with piston, and the lower end of piston is provided with transmission device;Cup body bottom is provided with heat-conducting medium storage cavity, and heat-conducting medium storage cavity and vacuum / heat-conducting medium double working condition cavity are communicated;Cup seat is provided with electricity storage assembly and hydrogen production assembly, and electricity storage assembly includes circuit board and battery, and circuit board is connected with difference generating sheet, battery and hydrogen production assembly respectively.

[0005] Further, the hydrogen production assembly comprises a cathode, an anode, an ion film and a water inlet; the water inlet is communicated with the water storage cavity at the upper end and sequentially provided with the cathode, the ion film and the anode at the lower end.

[0006] Further, the hydrogen production assembly further comprises a waterproof layer and an oxygen outlet, and the oxygen outlet is arranged below the anode; the waterproof layer is arranged at the inlet of the oxygen outlet.

[0007] Further, the electricity storage assembly further comprises a power transmission hole, and the power transmission hole is connected with the circuit board and the battery.

[0008] Further, the cup body is provided with a water transmission channel, and the water transmission channel connects the water storage cavity and the water inlet.

[0009] Further, the surface of the thermoelectric power generation sheet is provided with a film layer.

[0010] Further, the lower end of the vacuum / heat-conducting medium double-working-condition cavity is provided with a limiting structure.

[0011] Further, the cup seat comprises a shell, and the shell is internally provided with the electricity storage assembly and the hydrogen production assembly.

[0012] The multifunctional water cup with the thermoelectric power generation hydrogen production, phase change energy storage and light absorption heating has the following beneficial effects:

[0013] (1) The multifunctional water cup with the thermoelectric power generation hydrogen production, phase change energy storage and light absorption heating moves the piston to below the vacuum / heat-conducting medium double-working-condition cavity through the transmission device to form a vacuum cavity, and has the heat preservation effect; when the water cup contains boiling water, the phase change material in the phase change heat storage cavity absorbs heat to change phase, so that the water temperature is reduced to about 50 DEG C, and most of the heat cannot be dissipated to the external environment due to the blockage of the vacuum cavity. Compared with the traditional heat preservation cup, the multifunctional water cup can realize the functions of long-time water temperature maintenance and rapid cooling at the same time.

[0014] (2) The multifunctional water cup with the thermoelectric power generation hydrogen production, phase change energy storage and light absorption heating moves the piston to above the vacuum / heat-conducting medium double-working-condition cavity through the transmission device, and the high-heat-conducting liquid is diffused from the liquid storage cavity to the vacuum / heat-conducting medium double-working-condition cavity to form a heat-conducting cavity. At this time, if the water storage cavity contains boiling water, the heat can be smoothly conducted to the outside of the water cup, at this time, the thermoelectric power generation sheet can generate electricity by taking the high-temperature phase change material as a heat source and the surrounding environment as a cold source, and store the electric energy in the battery of the cup seat, which can be used for hydrogen production to form hydrogen-rich water when needed. At this time, the water cup can meet the purpose of not needing heat preservation and rapid cooling, and the waste heat of water is used for power generation and storage, so that the waste heat is reused.

[0015] (3) The multifunctional cup with hydrogen production by thermoelectric power generation, phase change energy storage and light absorption heating has the functions of heat preservation, cooling and heating of the cup by moving the piston through the transmission device, realizes one cup with multiple functions, realizes rapid cooling and prolongs the heat preservation time through the heat storage cavity, realizes energy saving and efficiency increasing by utilizing the waste heat of water for thermoelectric power generation, and can be used for hydrogen production to form hydrogen-rich water beneficial to health when needed.

[0016] (4) The multifunctional cup with hydrogen production by thermoelectric power generation, phase change energy storage and light absorption heating has the functions of heat preservation, cooling and heating of the cup by moving the piston through the transmission device, realizes one cup with multiple functions, realizes rapid cooling and prolongs the heat preservation time through the heat storage cavity, realizes energy saving and efficiency increasing by utilizing the waste heat of water for thermoelectric power generation, and can be used for hydrogen production to form hydrogen-rich water beneficial to health when needed. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated herein in their entirety.

[0018] In the drawings:

[0019] Figure 1 is a structural schematic view of the multifunctional cup with hydrogen production by thermoelectric power generation, phase change energy storage and light absorption heating;

[0020] Figure 2 is a sectional view of the cup cover of the multifunctional cup with hydrogen production by thermoelectric power generation, phase change energy storage and light absorption heating;

[0021] Figure 3 is a sectional view of the cup body of the multifunctional cup with hydrogen production by thermoelectric power generation, phase change energy storage and light absorption heating;

[0022] Figure 4 is a local enlarged view of I in the multifunctional cup with hydrogen production by thermoelectric power generation, phase change energy storage and light absorption heating; Figure 3

[0023] Figure 5 is a local enlarged view of II in the multifunctional cup with hydrogen production by thermoelectric power generation, phase change energy storage and light absorption heating; Figure 3

[0024] Figure 6 ​​It is the section view of the cup seat of the multifunctional water cup with temperature difference power generation hydrogen production, phase change energy storage and light absorption heating of the utility model;

[0025] Wherein: 1- water storage cavity, 2- phase change heat storage cavity, 3- thermoelectric power generation sheet, 4- vacuum / heat conducting medium double working condition cavity, 5- heat conducting medium storage cavity, 6- inner wall, 7- middle wall, 8- film layer, 9- outer wall, 10- piston, 11- transmission device, 12- limit structure, 13- cup cover, 14- cup body, 15- water delivery channel, 16- light absorption coating, 17- cup seat, 18- battery, 19- circuit board, 20- power transmission hole, 21- cathode, 22- anode, 23- ion membrane, 24- water delivery port, 25- oxygen discharge port, 26- waterproof layer, 27- electricity storage assembly, 28- hydrogen production assembly, 29- shell. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings, and obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. The device or element indicated or implied must have a particular orientation, construction and operation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" 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 indirectly connected through an intermediate medium, or the communication between two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] DETAILED DESCRIPTION Figures 1-6 The cup body 14 includes an inner wall 6, a middle wall 7, and an outer wall 9. The middle wall 7 is provided with a thermoelectric power generation sheet 3 on the outer surface. The outer wall 9 is made of a transparent material and is provided with a light-absorbing coating 16 on the inner surface. The inner wall 6 is provided with a water storage cavity 1. The inner wall 6 and the middle wall 7 are provided with a phase change heat storage cavity 2. The phase change heat storage cavity 2 is provided with a phase change heat storage material. The phase change heat storage material is used to absorb heat and store heat energy at high temperature. The middle wall 7 and the outer wall 9 are provided with a vacuum / heat-conducting medium dual working condition cavity 4. The vacuum / heat-conducting medium dual working condition cavity 4 is provided with a piston 10. The lower end of the piston 10 is provided with a transmission device 11. The transmission device 11 can control the piston 10 to move up and down in the vacuum / heat-conducting medium dual working condition cavity 4. The bottom of the cup body 14 is provided with a heat-conducting medium storage cavity 5. The heat-conducting medium storage cavity 5 stores a liquid with high heat conductivity. The heat-conducting medium storage cavity 5 and the vacuum / heat-conducting medium dual working condition cavity 4 are connected. The flow of the heat-conducting medium in the vacuum / heat-conducting medium dual working condition cavity 4 is controlled by the up and down movement of the piston 10. When the piston 10 moves to the lower end of the vacuum / heat-conducting medium dual working condition cavity 4, the inside of the vacuum / heat-conducting medium dual working condition cavity 4 is in a vacuum state. When the piston 10 moves to the upper end of the vacuum / heat-conducting medium dual working condition cavity 4, the heat-conducting medium flows out of the heat-conducting medium storage cavity 5 and enters the inside of the vacuum / heat-conducting medium dual working condition cavity 4. The inside of the vacuum / heat-conducting medium dual working condition cavity 4 is in a heat-conducting state. The lower end of the vacuum / heat-conducting medium dual working condition cavity 4 is provided with a limiting structure 12 to prevent the piston 10 from separating from the dual working condition cavity 4.

[0031] The cup seat 17 is provided with an electricity storage assembly 27 and a hydrogen production assembly 28. The electricity storage assembly 27 is connected with the thermoelectric power generation sheet 3 and the hydrogen production assembly 28.

[0032] The hydrogen production assembly 28 includes a cathode 21, an anode 22, an ion membrane 23, and a water inlet 24. The upper end of the water inlet 24 is connected with the water storage cavity 1. The lower end is sequentially provided with the cathode 21, the ion membrane 23, and the anode 22. The cathode 21 is arranged on the upper surface of the ion membrane 23. The anode 22 is arranged on the lower surface of the ion membrane 23. The hydrogen production assembly 28 further includes a waterproof layer 26 and an oxygen outlet 25. The oxygen outlet 25 is arranged below the anode 22. The waterproof layer 26 is arranged at the inlet of the oxygen outlet 25.

[0033] The electricity storage assembly 27 comprises a circuit board 19 and a battery 18, and the circuit board 19 is connected with the thermoelectric generator 3, the battery 18 and the hydrogen production assembly 28 respectively.

[0034] The cup body 14 is provided with a water delivery channel 15 at the bottom, and the water delivery channel 15 is connected with the water storage cavity 1 and a water delivery port 24; when hydrogen is needed to be produced, the water in the water storage cavity 1 is delivered into the hydrogen production assembly 28 through the water delivery channel 15 and the water delivery port 24 for electrolysis to produce hydrogen.

[0035] The thermoelectric generator 3 is provided with a thin film layer 8 on the surface, and the thin film layer 8 protects the thermoelectric generator 3.

[0036] The cup seat 17 comprises a shell 29, and the shell 29 is provided with the electricity storage assembly 27 and the hydrogen production assembly 28.

[0037] The light-absorbing coating 16 comprises but is not limited to a copper oxide coating, a black chromium coating, a black carbon coating, a graphene coating and a black nickel coating.

[0038] The phase change material in the phase change heat storage cavity 2 comprises but is not limited to a paraffin phase, a fatty acid phase, a nano composite phase and a graphene phase.

[0039] The cup body 14 is a prismatic structure, which facilitates the selection and installation of the thermoelectric generator 3 in the production process and reduces the cost of customized components.

[0040] The high-thermal-conductivity liquid in the liquid storage cavity 5 comprises but is not limited to pure water, an alcohol aqueous solution, silicon oil, an ionic liquid and a nano fluid.

[0041] The specific working process of the multifunctional water cup with thermoelectric power generation, phase change energy storage and light-absorbing heating is as follows:

[0042] When it is desired to store warm water and maintain the temperature for a long time, the cup seat 17 and the cup body 14 can be assembled, and then boiling water is injected into the water storage cavity 1 and the cup cover 13 is covered. The heat of the water will quickly pass through the inner wall 6 to the phase change heat storage cavity 2, so that the phase change heat storage material filled in the phase change heat storage cavity 2 is fully heated to change phase and absorb heat, so that the temperature of the boiling water rapidly drops to a temperature interval (45-55℃) suitable for drinking. When the temperature of the warm water begins to drop and is lower than the temperature of the phase change heat storage material, the phase change material begins to change phase again to release heat to maintain the temperature of the warm water. Since the heat dissipation intensity is positively related to the temperature of the heat source when the temperature of the cold source is constant, the heat preservation capacity of the utility model is stronger than that of the ordinary water cup at a lower initial temperature. In this process, the heat preservation or heat dissipation power generation mode of the water cup can be switched by adjusting the adiabatic piston 10 through the transmission device 11. If the adiabatic piston 10 is pushed to the lowest point, it is the heat preservation working condition, at this time, the vacuum heat preservation cavity between the film layer 8 and the outer wall 9 blocks most of the heat conduction, and the heat preservation effect can be achieved for a longer time; if the adiabatic piston 10 is pushed to the highest point, it is the heat dissipation power generation working condition, at this time, the heat conduction cavity between the film layer 8 and the outer wall 9 is filled with high thermal conductivity liquid from the liquid storage cavity 5, and since the heat conduction efficiency is high, it can be used as the cold end of the thermoelectric power generation sheet to improve the power generation efficiency. By switching the two working conditions, the user can choose to use the heat preservation mode with longer heat preservation time but lower power generation efficiency or the power generation mode with higher power generation efficiency but shorter heat preservation time. In addition, the light absorbing coating 16 on the inner side of the outer wall 2 can also hinder long wave radiation, so that the heat dissipation is as small as possible.

[0043] When it is desired to obtain warm water, the cup seat 17 and the cup body 14 can be assembled, and then normal temperature water is injected into the water storage cavity 1 and the cup cover 13 is covered, and the water cup is placed under sunlight and the adiabatic piston 10 is pushed to the highest point. Since the outer wall 9 is made of transparent material, sunlight can shine on the light absorbing coating 16 from any direction. The radiant energy of sunlight is received by the light absorbing coating 16 and converted into heat energy, which is transmitted to the water in the water storage cavity 1 through the radially distributed heat conduction cavity, the film layer 8, the thermoelectric power generation sheet 3, the middle wall 7, the phase change heat storage cavity 2 and the inner wall 6, so that the water is heated. In this process, the double-mode switching cavity is in power generation mode, the heat conduction cavity between the film layer 8 and the outer wall 9 is filled with high thermal conductivity liquid, which can reduce the thermal resistance and more efficiently utilize solar energy to heat the water. When the water temperature reaches the melting point of the phase change material, the phase change heat storage material no longer continues to heat the water, so the water temperature will not be too high.

[0044] The electricity storage assembly 27 stores the electricity generated by the thermoelectric generator 3, which can be used for hydrogen production by the hydrogen production assembly 28 or discharged through the electricity outlet 20. In order to ensure the power supply of the hydrogen production assembly 28, the electricity storage assembly 27 can also be charged through the electricity outlet 20. The hydrogen production assembly 28 produces hydrogen by electrolysis of water and releases the hydrogen into the water to form hydrogen-rich water which is beneficial to health. When it is desired to obtain hydrogen-rich water, the cup seat 17 and the cup body 14 can be assembled, water is injected into the water storage cavity 1 and the cup cover 13 is covered, and the hydrogen production assembly 28 is started under the condition that sufficient electricity is ensured. The water in the water storage cavity 1 can enter the hydrogen production assembly 28 through the water inlet channel 15 and form healthy drinking water rich in hydrogen molecules by electrolysis. During the electrolysis process, oxygen is discharged from the oxygen outlet 25 through the waterproof layer 26, ensuring the stability of the hydrogen production process.

[0045] In summary of the above implementation cases, the multifunctional water cup with thermoelectric power generation, phase change energy storage and light absorption heating has the heat preservation effect, when the water cup contains boiling water, the phase change material in the phase change heat storage cavity 2 absorbs heat and changes phase, so that the water temperature decreases to about 50 DEG C, and most of the heat cannot be dissipated to the external environment due to the blockage of the vacuum cavity. Compared with the traditional vacuum cup, the multifunctional water cup can realize rapid cooling while realizing long-time water temperature maintenance by using the heat storage material.

[0046] The multifunctional water cup with thermoelectric power generation, phase change energy storage and light absorption heating has the heat preservation effect, when the water cup contains boiling water, the phase change material in the phase change heat storage cavity 2 absorbs heat and changes phase, so that the water temperature decreases to about 50 DEG C, and most of the heat cannot be dissipated to the external environment due to the blockage of the vacuum cavity. Compared with the traditional vacuum cup, the multifunctional water cup can realize rapid cooling while realizing long-time water temperature maintenance by using the heat storage material.

[0047] The multifunctional water cup with thermoelectric power generation, phase change energy storage and light absorption heating has the heat preservation effect, when the water cup contains boiling water, the phase change material in the phase change heat storage cavity 2 absorbs heat and changes phase, so that the water temperature decreases to about 50 DEG C, and most of the heat cannot be dissipated to the external environment due to the blockage of the vacuum cavity. Compared with the traditional vacuum cup, the multifunctional water cup can realize rapid cooling while realizing long-time water temperature maintenance by using the heat storage material.

[0048] The multifunctional cup with the functions of hydrogen production by temperature difference power generation, phase change energy storage and light absorption heating, through the transmission device 11 moves the piston 10 to realize the water cup's heat preservation, cooling and heating functions, integrates multiple functions, realizes one cup with multiple functions; simultaneously through the phase change heat storage cavity 2 realizes the effect of quick cooling and prolongs the heat preservation time; and utilizes the water's waste heat to realize temperature difference power generation, realizes energy saving and efficiency increasing, and can be used for hydrogen production to form hydrogen-rich water beneficial to health when needed.

[0049] The above-described specific embodiments further specifically describe the purpose, technical scheme and beneficial effects of the utility model. It should be understood that the above-described is only a specific embodiment of the utility model and is not used to limit the utility model, and can be a reasonable combination of the features described in the above-described embodiments, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A multifunctional water cup with hydrogen production by thermoelectric power generation, phase change energy storage and light absorption heating, characterized in that: The cup cover (13), the cup body (14) and the cup seat (17) are included; the cup cover (13) is arranged at the upper end of the cup body (14), and the cup seat (17) is arranged at the lower end of the cup body (14); the cup body (14) includes an inner wall (6), a middle wall (7) and an outer wall (9), the outer wall (9) is a transparent material, and the inner surface is provided with a light-absorbing coating (16); the middle wall (7) is provided with a thermoelectric power generation sheet (3) on the outer surface; the inner wall (6) is provided with a water storage cavity (1) inside, a phase change heat storage cavity (2) is arranged between the inner wall (6) and the middle wall (7), and a vacuum / heat conducting medium double working condition cavity (4) is arranged between the middle wall (7) and the outer wall (9); the vacuum / heat conducting medium double working condition cavity (4) is provided with a piston (10), and the lower end of the piston (10) is provided with a transmission device (11); the bottom of the cup body (14) is provided with a heat conducting medium storage cavity (5), and the heat conducting medium storage cavity (5) and the vacuum / heat conducting medium double working condition cavity (4) are communicated; The cup seat (17) is provided with an electricity storage assembly (27) and a hydrogen production assembly (28), the electricity storage assembly (27) includes a circuit board (19) and a battery (18), and the circuit board (19) is connected with the thermoelectric power generation sheet (3), the battery (18) and the hydrogen production assembly (28) respectively.

2. The multifunctional water cup with hydrogen production by thermoelectric generation, phase change energy storage and light absorption heating according to claim 1, characterized in that: The hydrogen production assembly (28) includes a cathode (21), an anode (22), an ion membrane (23) and a water inlet (24); the upper end of the water inlet (24) is communicated with the water storage cavity (1), and the lower end is sequentially provided with the cathode (21), the ion membrane (23) and the anode (22).

3. The multifunctional water cup with hydrogen production by thermoelectric generation, phase change energy storage and light absorption heating according to claim 2, characterized in that: The hydrogen production assembly (28) further includes a waterproof layer (26) and an oxygen outlet (25), and the oxygen outlet (25) is arranged below the anode (22); the waterproof layer (26) is arranged at the inlet of the oxygen outlet (25).

4. The multi-functional water cup with hydrogen production by thermoelectric generation, phase change energy storage and light absorption heating according to claim 3, characterized in that: The electricity storage assembly (27) further includes a power transmission hole (20), and the power transmission hole (20) is connected with the circuit board (19) and the battery (18) respectively.

5. The multi-functional water cup with hydrogen production by thermoelectric generation, phase change energy storage and light absorption heating according to claim 3, characterized in that: The cup body (14) is provided with a water inlet channel (15), and the water inlet channel (15) is connected with the water storage cavity (1) and the water inlet (24).

6. The multi-functional water cup with hydrogen production by thermoelectric generation, phase change energy storage and light absorption heating according to claim 1, characterized in that: The surface of the thermoelectric power generation sheet (3) is provided with a film layer (8).

7. The multi-functional water cup with hydrogen production by thermoelectric generation, phase change energy storage and light absorption heating according to claim 1, characterized in that: The lower end of the vacuum / heat conducting medium double working condition cavity (4) is provided with a limiting structure (12).

8. The multi-functional water cup with hydrogen production by thermoelectric generation, phase change energy storage and light absorption heating according to claim 1, characterized in that: The cup seat (17) includes an outer shell (29), and the outer shell (29) is provided with the electricity storage assembly (27) and the hydrogen production assembly (28) inside.

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