Self-powered vacuum insulation kettle based on wireless transmission and method

By introducing a thermoelectric generator and a self-powered system into the thermos, the thermos uses the temperature difference between hot and cold water to generate electricity to power the rechargeable battery, thus solving the problem of resource waste in battery power supply and realizing an energy-saving and environmentally friendly self-powered thermos design.

CN116058682BActive Publication Date: 2026-07-03JIANGSU XINUO INDAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU XINUO INDAL
Filing Date
2023-02-06
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The current weighing sensors for thermos flasks rely on batteries for power, which have limited power and require frequent replacement, resulting in resource waste and environmental pollution.

Method used

It employs a thermoelectric generator and a self-powered system to generate electricity by utilizing the temperature difference between hot and cold water. The electricity is then used to charge the rechargeable battery through the Seebeck effect, which powers the weighing sensor and the display screen.

Benefits of technology

It eliminates the need for frequent battery replacements, saves resources, is easy to use, and achieves energy-saving and environmentally friendly results.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This application relates to a self-powered vacuum thermos flask and method based on wireless transmission, belonging to the technical field of vacuum thermos flasks. It includes an outer liner and an inner liner disposed within the outer liner. A weighing sensor is disposed below the outer liner and electrically connected to a display screen. A closed water tank is disposed inside the outer liner. Several thermoelectric generators are disposed between the closed water tank and the inner liner. An electric motor is disposed between the outer liner and the inner liner, and the electric motor is electrically connected to the thermoelectric generators. A magnetic rotor is connected to the drive shaft of the electric motor. A base is integrally disposed at the bottom of the outer liner, and a power generation component is disposed within the base. The power generation component includes a generator, a first adsorption rotor, a boost module, and a rechargeable battery. This application has the advantages of convenient use, reduced resource waste, and energy conservation and environmental protection.
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Description

Technical Field

[0001] This application relates to the technical field of vacuum thermos flasks, and in particular to a self-powered vacuum thermos flask and method based on wireless transmission. Background Technology

[0002] Currently, a thermos cup refers to a water container made of ceramic or stainless steel with a vacuum layer. The thermos cup can effectively keep hot water warm. At the same time, some multi-functional thermos flasks on the market have different functions, such as detecting the temperature and volume of hot water inside the thermos cup.

[0003] One related technology involves a thermos flask, which includes a cup body and a weighing sensor located at the bottom of the cup body. The weighing sensor is connected to a battery, which powers the weighing sensor. The weighing sensor can detect the weight of the cup body and further detect the amount of water inside the cup.

[0004] Regarding the aforementioned technologies, which directly power the weighing sensor via a battery, the battery's capacity is limited. This necessitates frequent battery replacements when using such functional water cups, which is inconvenient and wastes resources, hindering energy conservation and environmental protection. Therefore, improvements are needed. Summary of the Invention

[0005] The purpose of this application is to provide a self-powered vacuum thermos flask and method based on wireless transmission, which is convenient to use, reduces resource waste, and is energy-saving and environmentally friendly.

[0006] In a first aspect, this application provides a self-powered vacuum thermos based on wireless transmission, employing the following technical solution: It includes an outer liner and an inner liner disposed within the outer liner. A weighing sensor is disposed below the outer liner, and the weighing sensor is electrically connected to a display screen, which is disposed outside the outer liner. A closed water tank is disposed inside the outer liner, and several thermoelectric generators are disposed between the closed water tank and the inner liner. One end of each thermoelectric generator is in contact with the bottom wall of the inner liner, and the other end is in contact with the outer wall of the closed water tank. An electric motor is disposed between the outer liner and the inner liner, and the electric motor is electrically connected to the thermoelectric generators. A magnetic rotor is connected to the drive shaft of the electric motor. A base is integrally disposed at the bottom of the outer liner, and a power generation component is disposed within the base. The power generation component includes a generator, a first adsorption rotor, a boost module, and a rechargeable battery. The generator is disposed within the base, and the first adsorption rotor is connected to the rotor of the generator. The first adsorption rotor corresponds to and attracts the magnetic rotor. The boost module is electrically connected between the rechargeable battery and the generator. The rechargeable battery supplies power to the weighing sensor and the display screen.

[0007] By adopting the above technical solution, when using the thermos, hot water is poured into the inner liner. Since the inner liner is located inside the outer liner, a weighing sensor can measure the total weight of the inner and outer liners. The overall weight of the thermos can then be observed on the display screen, and the amount of water in the inner liner can be inferred from the overall weight. The heat from the hot water in the inner liner is transferred to the inner liner. The hot end of the thermoelectric generator is in contact with the bottom wall of the inner liner, and the cold end of the thermoelectric generator is in contact with the closed water tank. This allows the two ends of the thermoelectric generator to contact the cold source and the hot source respectively. The motor is electrically connected to the thermoelectric generator. When a temperature difference is generated... The thermoelectric generator can power an electric motor, which in turn drives a magnetic rotor. The first adsorption rotor inside the base rotates along with the magnetic rotor due to its magnetic force, generating electricity through a generator. This electricity is then regulated by a boost module and stored in a rechargeable battery. The weighing sensor and display screen are electrically connected to the rechargeable battery for power. This allows the battery to be charged using the Seebeck effect as long as there is hot water inside the tank, effectively utilizing resources, eliminating the need for frequent battery replacements, and providing convenient and energy-saving benefits.

[0008] Optionally, the closed water tank is arranged in a ring shape, with a through hole at the center of the closed water tank, the motor located inside the through hole, and a second adsorption rotor rotatably arranged on the inner wall of the closed water tank. The second adsorption rotor corresponds to and attracts the magnetic rotor. The side wall of the second adsorption rotor is inclined with stirring blades, and the length direction of the stirring blades is arranged along the radial direction of the closed water tank.

[0009] By adopting the above technical solution, cold water is stored in the closed water tank, which can serve as a good cold source for the thermoelectric generator. When the motor in the arrangement hole drives the magnetic rotor to rotate, the second adsorption rotor in the closed water tank is subjected to the magnetic force of the magnetic rotor and rotates with the magnetic rotor. The second adsorption rotor can rotate along the circumference of the closed water tank. When the second adsorption rotor rotates, it drives the stirring blade to rotate. The stirring blade can stir the cold water in the closed water tank, which is conducive to heat dissipation and reduces the phenomenon of the closed water tank heating up after being subjected to heat conduction by the thermoelectric generator. It maintains a high temperature difference between the two ends of the thermoelectric generator, which is conducive to the thermoelectric generator generating electricity.

[0010] Optionally, the surface of the stirring blade is provided with a plurality of guide strips, the length direction of which is inclined to the length direction of the stirring blade.

[0011] By adopting the above technical solution, when the second adsorption rotor rotates along the circumference of the closed water tank under the magnetic force of the magnetic rotor, the guide strip can play a good guiding role for the cold water in the closed water tank. Since the length direction of the guide strip is inclined to the length direction of the stirring blade, and the stirring blade itself is also inclined, the stirring blade is conducive to the water flow forming a vortex rotation in the closed water tank after rotation. This is conducive to the continuous circulation of cold water at the bottom of the closed water tank to the top of the closed water tank, keeping the end of the closed water tank near the cold end of the thermoelectric generator at a relatively low temperature.

[0012] Optionally, a number of mounting platforms are provided on the bottom of the inner tank, and a number of mounting brackets are provided on the side wall of the closed water tank. The number of mounting brackets corresponds to the number of mounting platforms. A screw is provided on the mounting bracket, and a mounting hole is provided on the mounting platform for the screw to pass through. A nut is threaded onto the screw, and the nut abuts against the upper surface of the mounting platform.

[0013] By adopting the above technical solution, when installing the closed water tank, the motor is first installed at the bottom of the inner tank. Then, the closed water tank is fitted over the motor, with the motor positioned inside the mounting hole. Simultaneously, the thermoelectric generator is placed between the closed water tank and the inner tank. The closed water tank is slid to allow the screw to pass through the mounting hole on the mounting platform. The screw slides within the mounting hole. When both ends of the thermoelectric generator are tightly fitted with the inner tank and the closed water tank, the nuts on the screw are rotated, causing the nuts to abut against the upper surface of the mounting platform. Several nuts secure the screw, thereby fixing the closed water tank. This allows for quick installation of the closed water tank and the thermoelectric generator between the inner tank, improving the ease of installation.

[0014] Optionally, a limiting plate is rotatably provided on the mounting frame, and a torsion spring is provided at the rotatable connection between the limiting plate and the mounting frame, the torsion spring driving the limiting plate to abut against the end wall of the thermoelectric generator.

[0015] By adopting the above technical solution, after the closed water tank is installed, the limiting plate can be rotated, and the torsion spring drives the limiting plate to abut against the end wall of the thermoelectric generator. The limiting plate limits the thermoelectric generator, which improves the stability of the thermoelectric generator between the closed water tank and the inner tank. There is no need to install and fix the thermoelectric generator separately, which improves the convenience of installation.

[0016] Optionally, the top ends of the outer liner and the inner liner are fixed to each other, and a vacuum layer is provided between the outer liner and the inner liner.

[0017] By adopting the above technical solution, the heat preservation function of the thermos is achieved through a vacuum layer.

[0018] Optionally, an insulation layer is provided between the motor and the inner liner.

[0019] By adopting the above technical solution, it is possible to avoid establishing additional heat conduction channels between the hot and cold ends of the thermoelectric generator.

[0020] Optionally, the enclosed water tank is made of aluminum alloy.

[0021] By adopting the above technical solution, aluminum alloy is relatively lightweight, which helps to reduce the weight of the closed water tank, thereby reducing the weight of the thermos. At the same time, aluminum alloy has good corrosion resistance and sealing performance, which helps to extend the service life of the closed water tank. In addition, aluminum alloy has good thermal conductivity, which helps to keep the surface of the closed water tank at a relatively low temperature.

[0022] Secondly, the method for using a self-powered vacuum thermos based on wireless transmission provided in this application adopts the following technical solution, including the following steps:

[0023] The hot water poured into the inner tank serves as the heat source for the thermoelectric generator, while the cold water in the water tank serves as the cold source for the thermoelectric generator, generating electricity through the thermoelectric generator.

[0024] The electrical energy generated by the thermoelectric generator drives the electric motor, which in turn drives the magnetic rotor to rotate. At the same time, the first adsorption rotor rotates with the magnetic rotor under the magnetic adsorption force, generating electrical energy through the generator.

[0025] The computer generated by the generator stores electrical energy in the rechargeable battery through the adjustment of the boost module. The rechargeable battery powers the load cell and the display screen. The load cell can continuously transmit the detected data to the display screen for display.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By incorporating a closed water tank, a thermoelectric generator, an electric motor, a magnetic rotor, a base, a generator, a first adsorption rotor, a booster module, and a rechargeable battery, heat from the hot water inside the inner tank is transferred to the inner tank. The cold end of the thermoelectric generator is in close contact with the closed water tank, allowing its two ends to contact the cold and hot sources respectively. When a temperature difference is generated, the thermoelectric generator can activate the electric motor, which drives the magnetic rotor to rotate. At the same time, the first adsorption rotor inside the base rotates along with the magnetic rotor, thereby generating electrical energy through the generator. The electrical energy generated by the generator is regulated by the booster module and stored in the rechargeable battery for power supply. This allows the rechargeable battery to be charged using the Seebeck effect as long as there is hot water inside the inner tank, effectively utilizing resources, eliminating the need for frequent battery replacements, making it convenient to use, and achieving energy-saving and environmentally friendly results.

[0028] 2. By setting up arrangement holes, a second adsorption rotor, stirring blades, and guide strips, when the motor in the arrangement holes drives the magnetic rotor to rotate, the second adsorption rotor in the closed water tank is subjected to the magnetic force of the magnetic rotor and rotates with the magnetic rotor. The second adsorption rotor can rotate along the circumference of the closed water tank. When the second adsorption rotor rotates, it drives the stirring blades to rotate. The stirring blades can stir the cold water in the closed water tank, which is conducive to heat dissipation and reduces the phenomenon of the closed water tank heating up after being subjected to heat conduction by the thermoelectric generator. It maintains a high temperature difference effect at both ends of the thermoelectric generator, which is conducive to the thermoelectric generator generating electricity.

[0029] 3. By setting up an installation platform, mounting bracket, screws, mounting holes, and nuts, when installing a closed water tank, first install the motor at the bottom of the inner tank, then fit the closed water tank over the motor, positioning the motor within the mounting hole. Simultaneously, place the thermoelectric generator between the closed water tank and the inner tank. Slide the closed water tank so that the screw passes through the mounting hole on the installation platform. The screw slides within the mounting hole. When both ends of the thermoelectric generator are tightly fitted with the inner tank and the closed water tank, rotate the nuts on the screw so that the nuts abut against the upper surface of the installation platform. Several nuts secure the screw, thereby fixing the closed water tank in place. This allows for quick installation of the closed water tank and the thermoelectric generator between the inner tank and the inner tank, improving installation convenience. Attached Figure Description

[0030] Figure 1 This is a cross-sectional schematic diagram of a self-powered vacuum thermos based on wireless transmission provided in an embodiment of this application;

[0031] Figure 2 yes Figure 1 A magnified view of part A in the middle;

[0032] In the diagram, 1. Outer tank; 11. Inner tank; 12. Base; 2. Weighing sensor; 21. Display screen; 3. Enclosed water tank; 31. Thermoelectric generator; 32. Motor; 33. Magnetic rotor; 34. Arrangement hole; 4. Second adsorption rotor; 41. Stirring blade; 42. Guide bar; 5. Mounting platform; 51. Mounting bracket; 52. Screw; 53. Mounting hole; 54. Nut; 6. Limiting plate; 61. Torsion spring; 7. Vacuum layer; 8. Insulation layer; 9. Power generation component; 91. Generator; 92. First adsorption rotor; 93. Boost module; 94. Rechargeable battery. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail below.

[0034] This application discloses a self-powered vacuum thermos based on wireless transmission, referring to... Figure 1The thermos includes an outer liner 1 and an inner liner 11 housed within the outer liner 1. The inner liner 11 is made of aluminum, while the outer liner 1 can be made of stainless steel. The tops of the inner liner 11 and the outer liner 1 are fixed together by welding. There is a gap between the outer wall of the inner liner 11 and the inner wall of the outer liner 1, and a gap between the bottom wall of the inner liner 11 and the bottom wall of the outer liner 1. A vacuum layer 7 is provided between the inner liner 11 and the outer liner 1. When the inner liner 11 is filled with hot water, the vacuum layer 7 can reduce the heat loss of the hot water inside the inner liner 11, thus achieving the heat preservation function of the thermos.

[0035] Reference Figure 1 and Figure 2 An enclosed water tank 3 is installed inside the outer tank 11, located at the bottom of the inner tank 11. The enclosed water tank 3 is made of aluminum alloy and contains cold water. Several thermoelectric generators 31 are installed between the enclosed water tank 3 and the inner tank 11. Thermoelectric generators 31 can be square, annular, circular, or other non-square shapes; their number and size are variable, determined by the bottom dimensions of the inner tank 11 and the desired power generation effect. The thermoelectric generators 31 are approximately 4 mm thick, covering about half the bottom area of ​​the inner tank 11. The hot end of the thermoelectric generator 31 is in contact with the bottom wall of the inner tank 11, and the cold end is in contact with the outer wall of the enclosed water tank 3.

[0036] Reference Figure 1 and Figure 2 An electric motor 32 is installed between the outer liner 1 and the inner liner 11. The electric motor 32 is located at the bottom of the inner liner 11 and is electrically connected to a thermoelectric generator 31. A magnetic rotor 33 is connected to the drive shaft of the electric motor 32. A base 12 is integrally installed at the bottom of the outer liner 1. A weighing sensor 2 is connected to the bottom of the base 12 and is electrically connected to a display screen 21, which is located on the outer wall of the outer liner 1. When the thermos is placed on a table, the weighing sensor 2 can measure the total weight of the inner liner 11 and the outer liner 1, and then observe the overall weight of the thermos through the display screen 21. The amount of water in the inner liner 11 can be inferred from the overall weight.

[0037] Reference Figure 1 and Figure 2The base 12 houses a power generation assembly 9, which includes a generator 91, a first adsorption rotor 92, a boost module 93, and a rechargeable battery 94. The generator 91 is fixedly mounted within the base 12. The first adsorption rotor 92 is connected to the rotor of the generator 91, and the first adsorption rotor 92 corresponds to and attracts the magnetic rotor 33. The boost module 93 is electrically connected between the rechargeable battery 94 and the generator 91, and acts as a regulator. The load cell 2 and the display screen 21 are powered and electrically connected to the rechargeable battery 94. When hot water is stored in the inner tank 11, the thermoelectric generator 31 senses the heat of the inner tank 11, causing its two ends to contact a cold source and a hot source, respectively. When a temperature difference is generated, the thermoelectric generator 31 can activate the motor 32, which drives the magnetic rotor 33 to rotate. At this time, the first adsorption rotor 92 within the base 12 is subjected to the magnetic force of the magnetic rotor 33 and rotates along with it, thereby generating electrical energy through the generator 91. The electrical energy generated by generator 91 is regulated by boost module 93 and stored in rechargeable battery 94. The rechargeable battery 94 is then used to supply power, thus eliminating the need for frequent battery replacements. This method is convenient to use, effectively utilizes resources, and achieves energy conservation and environmental protection.

[0038] Reference Figure 1 and Figure 2 The magnetic rotor 33 and the first adsorption rotor 92 can be composed of several small magnets arranged alternately with positive and negative poles along the circumference on a housing, or they can be composed of a single magnetic strip with positive and negative poles. If several small magnets are used, the number and size of the small magnets can be varied, and the center of the housing should be fixed on the shaft of the motor 32 and the generator 91. If a single magnetic strip is used, the center of the magnetic strip should be fixed on the shaft of the motor 32 and the generator 91.

[0039] Reference Figure 1 and Figure 2The closed water tank 3 is a single tank arranged in a ring shape. A perforation 34 is provided through the center of the closed water tank 3, and the motor 32 is located within the perforation 34. A second adsorption rotor 4 is rotatably mounted on the inner wall of the closed water tank 3, located around the perforation 34 in a ring shape, and in close contact with the inner wall of the closed water tank 3. The second adsorption rotor 4 corresponds to and attracts the magnetic rotor 33. An agitator blade 41 is inclinedly mounted on the side wall of the second adsorption rotor 4, with its length direction along the radial direction of the closed water tank 3. Several guide strips 42 are provided on the surface of the agitator blade 41, with their length direction inclined to the length direction of the agitator blade 41. When the motor 32 inside the arrangement hole 34 drives the magnetic rotor 33 to rotate, the second adsorption rotor 4 inside the closed water tank 3 is driven by the magnetic force of the magnetic rotor 33 and rotates with the magnetic rotor 33. When the second adsorption rotor 4 rotates, it drives the stirring blade 41 to rotate along the circumference of the closed water tank 3. The stirring blade 41 can stir the cold water in the closed water tank 3, and at the same time, the guide strip 42 can guide the cold water in the closed water tank 3. When the stirring blade 41 rotates, it helps the water flow to form a vortex rotation in the closed water tank 3. In this way, the cold water at the bottom of the closed water tank 3 is continuously circulated to the top of the closed water tank 3, keeping the end of the closed water tank 3 near the cold end of the thermoelectric generator 31 at a relatively low temperature. This maintains a high temperature difference between the hot and cold ends of the thermoelectric generator 31, which is beneficial for the thermoelectric generator 31 to generate electricity.

[0040] Reference Figure 1 Several mounting platforms 5 are provided at the bottom of the inner tank 11 and on its side wall. Several mounting brackets 51 are fixedly provided on the side wall of the closed water tank 3, and the number of mounting brackets 51 corresponds to the number of mounting platforms 5. Screws 52 are welded and fixed on the mounting brackets 51. The mounting platforms 5 have mounting holes 53 for the screws 52 to pass through. The mounting holes 53 and the screws 52 are mutually compatible. Nuts 54 are threaded onto the screws 52. When installing the closed water tank 3, the motor 32 is first installed at the bottom of the inner tank 11. Then, the closed water tank 3 is fitted over the motor 32, so that the motor 32 is located in the arrangement hole 34. At the same time, the thermoelectric generator 31 is placed between the closed water tank 3 and the inner tank 11. Then slide the closed water tank 3 so that the screw 52 passes through the mounting hole 53 on the mounting platform 5. The screw 52 slides in the mounting hole 53. When the two ends of the thermoelectric generator 31 are tightly fitted with the inner tank 11 and the closed water tank 3, rotate the nut 54 on the screw 52 so that the nut 54 abuts against the upper surface of the mounting platform 5, thereby quickly realizing the installation of the closed water tank 3 and the thermoelectric generator 31.

[0041] Reference Figure 1A limiting plate 6 is rotatably mounted on the mounting bracket 51. A torsion spring 61 is provided at the rotatable connection between the limiting plate 6 and the mounting bracket 51. After the closed water tank 3 is installed, the limiting plate 6 can be rotated, and the torsion spring 61 drives the limiting plate 6 to abut against the end wall of the thermoelectric generator 31. The limiting plate 6 limits the thermoelectric generator 31, thereby improving the stability of the thermoelectric generator 31 between the closed water tank 3 and the inner tank 11.

[0042] Reference Figure 1 An insulation layer 8 is provided between the motor 32 and the inner liner 11. The insulation layer 8 is made of foam plastic. The insulation layer 8 can avoid establishing an additional heat conduction channel between the cold end and the hot end of the thermoelectric generator 31, ensuring the normal operation of the thermoelectric generator 31.

[0043] The implementation principle of this application embodiment is as follows:

[0044] When using the thermos, hot water is poured into the inner liner 11, causing the temperature of the inner liner 11 to rise. The hot end of the thermoelectric generator 31 is in contact with the bottom wall of the inner liner 11, while the cold end of the thermoelectric generator 31 is in contact with the closed water tank 3, so that the two ends of the thermoelectric generator 31 are in contact with the cold source and the hot source, respectively. Utilizing the Seebeck effect, the thermoelectric generator 31 drives the motor 32 to work, which in turn drives the magnetic rotor 33 to rotate. At this time, the first adsorption rotor 92 in the base 12 is subjected to the magnetic force of the magnetic rotor 33 and rotates with the magnetic rotor 33, thereby generating electrical energy through the generator 91. The electrical energy generated by the generator 91 is regulated by the boost module 93 and can be stored in the rechargeable battery 94. This means that as long as there is hot water in the inner liner 11, the rechargeable battery 94 can be charged using the Seebeck effect, effectively utilizing resources, eliminating the need for frequent battery replacements, making it convenient to use, and achieving energy-saving and environmentally friendly effects.

[0045] This application also discloses a method for using a self-powered vacuum thermos based on wireless transmission, which adopts the following technical solution: including the following steps:

[0046] The hot water poured into the inner tank 11 serves as the heat source for the thermoelectric generator 31, while the cold water in the water tank serves as the cold source for the thermoelectric generator 31, generating electrical energy through the thermoelectric generator 31.

[0047] The electrical energy generated by the thermoelectric generator 31 drives the motor 32 to work. The motor 32 drives the magnetic rotor 33 to rotate. At the same time, the first adsorption rotor 92 rotates with the magnetic rotor 33 under the magnetic adsorption force, and generates electrical energy through the generator 91.

[0048] The computer generated by generator 91 stores electrical energy in rechargeable battery 94 through the adjustment of boost module 93. Rechargeable battery 94 supplies power to weighing sensor 2 and display screen 21. Weighing sensor 2 can continuously transmit the detected data to display screen 21 for display.

[0049] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A self-powered vacuum insulation kettle based on wireless transmission, comprising an outer barrel (1) and an inner barrel (11) arranged in the outer barrel (1), a weighing sensor (2) is arranged below the outer barrel (1), the weighing sensor (2) is electrically connected with a display screen (21), and the display screen (21) is arranged outside the outer barrel (1); characterized in that, The outer liner (1) is equipped with a closed water tank (3). A plurality of thermoelectric generators (31) are arranged between the closed water tank (3) and the inner liner (11). One end of each thermoelectric generator (31) is in contact with the bottom wall of the inner liner (11), and the other end is in contact with the outer wall of the closed water tank (3). An electric motor (32) is arranged between the outer liner (1) and the inner liner (11). The electric motor (32) is electrically connected to the thermoelectric generators (31), and a magnetic rotor (33) is connected to the drive shaft of the electric motor (32). A base (12) is integrally provided at the bottom of the outer liner (1). The base (12) is provided with a power generation component (9), which includes a generator (91), a first adsorption rotor (92), a boost module (93), and a rechargeable battery (94). The generator (91) is located in the base (12). The first adsorption rotor (92) is connected to the rotor of the generator (91). The first adsorption rotor (92) corresponds to and attracts the magnetic rotor (33). The boost module (93) is electrically connected between the rechargeable battery (94) and the generator (91). The rechargeable battery (94) is used to supply power to the weighing sensor (2) and the display screen (21).

2. A self-powered vacuum-insulated flask based on wireless transmission according to claim 1, characterized in that, The closed water tank (3) is arranged in a ring shape. A layout hole (34) is provided through the center of the closed water tank (3). The motor (32) is located in the layout hole (34). A second adsorption rotor (4) is rotatably arranged on the inner wall of the closed water tank (3). The second adsorption rotor (4) corresponds to and attracts the magnetic rotor (33). A stirring blade (41) is inclinedly arranged on the side wall of the second adsorption rotor (4). The length direction of the stirring blade (41) is arranged along the radial direction of the closed water tank (3).

3. A self-powered vacuum-insulated flask based on wireless transmission according to claim 2, characterized in that, The surface of the stirring blade (41) is provided with a plurality of guide strips (42), and the length direction of the guide strips (42) is inclined to the length direction of the stirring blade (41).

4. The self-powered vacuum-insulated flask based on wireless transmission according to claim 1, characterized in that, The inner liner (11) has several mounting platforms (5) at its bottom end. The closed water tank (3) has several mounting brackets (51) on its side wall. The number of mounting brackets (51) corresponds to the number of mounting platforms (5). The mounting brackets (51) are equipped with screws (52). The mounting platforms (5) have mounting holes (53) for the screws (52) to pass through. The screws (52) are threaded with nuts (54). The nuts (54) abut against the upper surface of the mounting platforms (5).

5. A self-powered vacuum-insulated flask based on wireless transmission according to claim 4, characterized in that, A limiting plate (6) is rotatably mounted on the mounting bracket (51). A torsion spring (61) is provided at the rotatable connection between the limiting plate (6) and the mounting bracket (51). The torsion spring (61) drives the limiting plate (6) to abut against the end wall of the thermoelectric generator (31).

6. The self-powered vacuum-insulated flask based on wireless transmission according to claim 1, characterized in that, The top ends of the outer liner (1) and the inner liner (11) are fixed to each other, and a vacuum layer (7) is provided between the outer liner (1) and the inner liner (11).

7. The self-powered vacuum-insulated flask based on wireless transmission according to claim 1, characterized in that, An insulation layer (8) is provided between the motor (32) and the inner liner (11).

8. The self-powered vacuum-insulated flask based on wireless transmission according to claim 1, characterized in that, The enclosed water tank (3) is made of aluminum alloy.

9. A method of using a self-powered vacuum-insulated flask based on wireless transmission as claimed in claim 1, characterized in that: Includes the following steps: The hot water poured into the inner tank (11) serves as the heat source for the thermoelectric generator (31), and the cold water in the water tank serves as the cold source for the thermoelectric generator (31). Electricity is generated through the thermoelectric generator (31). The electrical energy generated by the thermoelectric generator (31) drives the motor (32) to work. The motor (32) drives the magnetic rotor (33) to rotate. At the same time, the first adsorption rotor (92) rotates with the magnetic rotor (33) under the magnetic adsorption force, and generates electrical energy through the generator (91). The computer generated by the generator (91) stores electrical energy in the rechargeable battery (94) through the regulation of the boost module (93). The rechargeable battery (94) supplies power to the weighing sensor (2) and the display screen (21). The weighing sensor (2) can continuously transmit the detected data to the display screen (21) for display.