Portable health preserving and heat preserving water cup

By incorporating an electromagnetic coil and heating base inside the thermos, combined with a temperature sensor and a voltage booster circuit, the problem of heat loss from the thermos is solved, achieving stable water temperature maintenance and portability, making it convenient to drink anytime and enhancing health benefits.

CN224125660UActive Publication Date: 2026-04-17NINGBO JADE BIRD IND DESIGN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO JADE BIRD IND DESIGN CO LTD
Filing Date
2025-06-04
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing thermos cups suffer from irreversible heat loss when maintaining hot water temperature, making drinking inconvenient and unable to effectively maintain the suitable temperature range of 35℃-50℃, thus affecting health benefits.

Method used

An electromagnetic coil and heating base are installed inside the thermos. The electromagnetic heating principle converts electrical energy into a magnetic field and then into heat energy. Combined with a temperature sensor and a boost circuit, the water temperature is maintained within a suitable range. The design of conductive contacts and conductive points makes it portable.

Benefits of technology

It achieves a stable water temperature between 35℃ and 50℃ inside the thermos, making it convenient to drink anytime and improving health benefits. The battery power supply and portable design enhance its ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable health preserving heat preservation water cup which comprises a cup body and a heating base, the cup body comprises an inner cup, a heat insulation layer and an outer shell, the inner cup is arranged in the outer shell, and the heat insulation layer is arranged between the inner cup and the outer shell; the inner cup comprises a metal inner container, an electromagnetic coil and an insulating layer, the electromagnetic coil is arranged on the outer surface of the metal inner container in a surrounding mode, and the insulating layer covers the electromagnetic coil in a wrapping mode; a circuit board is arranged in the heating base, the cup body is located on the heating base, the circuit board is electrically connected with the electromagnetic coil, and the circuit board provides electric energy for the electromagnetic coil to enable the electromagnetic coil to generate an alternating magnetic field. The electromagnetic coil is arranged in the inner cup, the heating base provides electric energy to heat the heat preservation water cup according to the electromagnetic heating principle, hot water in the heat preservation water cup is kept within a proper temperature range all the time, and people can drink the water conveniently for life cultivation and health preservation.
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Description

Technical Field

[0001] This utility model relates to the field of thermos cup technology, and in particular to a portable health-preserving thermos cup. Background Technology

[0002] A thermos is a portable insulated product used to slow down heat loss and prolong the time it takes for the contents of the container to cool down. There are many types of thermoses, such as insulated water cups and insulated water bottles.

[0003] Chinese people are accustomed to drinking hot water. Drinking hot water or adding condiments to hot water is a common way to maintain health. The temperature of hot water that is suitable for direct drinking is generally between 35℃ and 50℃. Although a thermos can keep the temperature, the heat loss over time is irreversible.

[0004] This means that people need to drink the hot water from their thermos at appropriate times. Drinking the water too early when it is too hot can damage the stomach lining and esophageal wall, while drinking it too late when it is too cold will not achieve the purpose of health preservation. Therefore, it is not very convenient for people to use ordinary thermos cups to drink hot water for health preservation. Utility Model Content

[0005] The purpose of this invention is to provide a portable health-preserving insulated water cup. An electromagnetic coil is installed in the inner cup of the insulated water cup, and the heating base provides electrical energy. Through the principle of electromagnetic heating, the electrical energy is converted into a magnetic field, and then the magnetic energy is converted into heat energy. Through the conversion of electricity, magnetism and heat, the insulated water cup is heated to maintain the temperature of the hot water in the insulated water cup within a suitable range, so that people can drink hot water between 35℃ and 50℃ at any time.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a portable health-preserving insulated water cup, comprising a cup body and a heating base, wherein the cup body comprises an inner cup, a heat insulation layer and an outer shell, the inner cup being disposed within the outer shell, and a heat insulation layer being disposed between the inner cup and the outer shell; the inner cup comprises a metal liner, an electromagnetic coil and an insulating layer, the electromagnetic coil being disposed around the outer surface of the metal liner, and the insulating layer covering the electromagnetic coil; the heating base contains a circuit board, the cup body being seated on the heating base, the circuit board being electrically connected to the electromagnetic coil, and the circuit board providing electrical energy to the electromagnetic coil to generate an alternating magnetic field.

[0007] By adopting the above technical solution, an electromagnetic coil is set in the inner cup, and the heating base provides power to heat the insulated water cup using the principle of electromagnetic heating, so that the hot water in the insulated water cup is always maintained within a suitable temperature range, making it convenient for people to drink and maintain health.

[0008] A further feature of this invention is that the bottom of the outer casing is provided with two conductive contacts, and the two conductive contacts are respectively electrically connected to the electromagnetic coil.

[0009] A further feature of this invention is that the heating base is provided with two conductive contacts, and the two conductive contacts are electrically connected to the circuit board respectively.

[0010] By adopting the above technical solution, electrical conduction is carried out through contact between conductive contact pieces and conductive contact points, allowing the insulated water cup to be picked up or put down from the heating base at any time, thus increasing the portability of the insulated water cup.

[0011] A further feature of this invention is that: a storage battery is provided inside the heating base, the storage battery is electrically connected to the circuit board, an oscillation circuit is provided on the circuit board, the oscillation circuit is electrically connected to the storage battery, and the oscillation circuit converts the direct current output by the storage battery into an alternating current output.

[0012] By adopting the above technical solution, the battery-powered electrical system makes it easier to carry the insulated water bottle, further increasing its portability.

[0013] A further feature of this invention is that the circuit board is also provided with a boost circuit, the boost circuit is electrically connected to the oscillation circuit, and the boost circuit boosts the alternating current output by the oscillation circuit before outputting it.

[0014] By adopting the above technical solution, the boost circuit increases the output voltage while reducing the current flowing in the electromagnetic coil. When the thermos cup is heated, the current flowing in is maintained between 10 mA and 20 mA, ensuring electrical safety.

[0015] The present invention is further configured as follows: the oscillation circuit includes a high-frequency oscillation transformer T1, an oscillation transistor Q1, a capacitor C1, a capacitor C2, and a resistor R2. The high-frequency oscillation transformer T1 includes a winding L1 and a winding L3. One end of winding L1 is connected to the positive terminal of the battery, and the other end is connected to the capacitor C2. One end of winding L3 is connected to the emitter E of the oscillation transistor Q1, and the other end is connected to the negative terminal of the battery. The collector C of the oscillation transistor Q1 is connected to the positive terminal of the battery. The base B of the oscillation transistor Q1 is connected to the capacitor C2. The capacitor C1 is connected in parallel with the battery. The two ends of the resistor R2 are respectively connected to the base B and the collector C of the oscillation transistor Q1.

[0016] A further configuration of this invention is as follows: the boost circuit includes diodes D1, D2, D3, C3, C4, and C5. Diodes D1, D2, and D3 are connected in series. The anode of diode D1 is connected to one end of winding L2 of the high-frequency oscillation transformer T1. One end of capacitor C3 is connected to the cathode of diode D1, and the other end is connected to the other end of winding L2. One end of capacitor C4 is connected to the cathode of diode D2, and the other end is connected to the anode of diode D1. One end of capacitor C5 is connected to the cathode of diode D3, and the other end is connected to the anode of diode D2.

[0017] A further feature of this invention is that a temperature sensor is provided on the heating base, the temperature sensor is electrically connected to the circuit board, and the temperature sensor is inserted into the outer shell to monitor the temperature of the metal inner liner.

[0018] By adopting the above technical solution, the temperature sensor monitors the temperature of the insulated water cup, and heating can be stopped when the appropriate temperature is reached.

[0019] A further feature of this invention is that the heating base is provided with a charging interface, the charging interface is connected to a circuit board, and the charging interface is electrically connected to the battery via the circuit board.

[0020] By adopting the above technical solution, the charging interface replenishes the battery with electrical energy.

[0021] A further feature of this invention is that the heating base is also provided with a control panel, which is electrically connected to the circuit board.

[0022] Compared with the prior art, this utility model has the following beneficial effects: 1. A portable health-preserving insulated water cup has an electromagnetic coil installed in the inner cup body. The heating base provides electrical energy, and the electrical energy is converted into a magnetic field through the principle of electromagnetic heating, and then the magnetic energy is converted into heat energy to heat the inner cup body of the insulated water cup and maintain the water temperature in an appropriate range, making it convenient for people to drink for health preservation at any time; 2. The insulated water cup can be placed on the heating base for heating at any time, and is powered by a rechargeable battery, making the insulated water cup easy to carry; 3. The temperature sensor allows the insulated water cup to stop heating when it reaches the appropriate temperature, saving energy consumption. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the cup body sitting on the heating base in the embodiment.

[0024] Figure 2 This is a schematic diagram of the cup body in the embodiment.

[0025] Figure 3 This is a cross-sectional view of the cup body in the embodiment.

[0026] Figure 4 This is a schematic diagram of the heating base in the embodiment.

[0027] Figure 5 This is a cross-sectional view of the heating base in the embodiment.

[0028] Figure 6 This is a block diagram of the oscillation circuit and boost circuit on the circuit board in the embodiment.

[0029] Figure 7 This is a circuit diagram of the oscillation circuit and the boost circuit in the embodiment.

[0030] In the diagram: 1. Cup body; 11. Metal inner liner; 12. Electromagnetic coil; 13. Insulation layer; 14. Heat insulation layer; 15. Outer shell; 16. Conductive contact; 17. Inner cup; 2. Heating base; 21. Conductive contact; 22. Circuit board; 23. Battery; 24. Button; 25. Temperature sensor; 26. Charging interface; 27. Charging circuit board; 28. Oscillation circuit; 29. ​​Boost circuit. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. It should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] A portable health-preserving insulated water bottle includes a bottle body 1 and a heating base 2, such as Figure 1-5 The cup body 1 includes a metal inner liner 11, an electromagnetic coil 12, an insulating layer 13, a heat insulation layer 14, and an outer shell 15. The electromagnetic coil 12 is arranged around the outer surface of the metal inner liner 11, and the insulating layer 13 is coated and covered on the electromagnetic coil 12. The metal inner liner 11, the electromagnetic coil 12, and the insulating layer 13 constitute an inner cup 17, which is disposed inside the outer shell 15. A heat insulation layer 14 is provided between the inner cup 17 and the outer shell 15.

[0033] The heating base 2 is located at the bottom of the cup body 1. Two conductive contact pieces 16 are provided at the bottom of the outer shell 15. The two conductive contact pieces 16 are electrically connected to the electromagnetic coil 12 respectively. The heating base 2 is provided with two conductive contacts 21. The heating base 2 is provided with a circuit board 22. The circuit board 22 is electrically connected to the two conductive contacts 21. When the cup body 1 is placed on the heating base 2, the conductive contacts 21 are electrically connected to the conductive pieces.

[0034] In this embodiment, the portable health-preserving insulated water cup has a circuit board 22 electrically connected to an electromagnetic coil 12 to generate an alternating magnetic field. The metal inner liner 11 cuts the alternating magnetic field lines, generating eddy currents on the surface of the metal inner liner 11. The eddy currents cause the free electrons inside the surface of the metal inner liner 11 to move at high speed and randomly. The high-speed moving free electrons collide and vibrate with atoms and other free electrons, converting electrical energy into heat energy, thereby heating the metal inner liner 11 and heating the water in the insulated water cup.

[0035] like Figure 5 , Figure 6 The heating base 2 is equipped with a storage battery 23, which is electrically connected to a circuit board 22. An oscillation circuit 28 is provided on the circuit board 22 and is electrically connected to the storage battery 23. The oscillation circuit 28 converts the DC power output from the storage battery 23 into an alternating current of a certain frequency, which is output from the conductive contact 21 to the electromagnetic coil 12 to generate an alternating magnetic field. The oscillation circuit 28 converts the DC power of the storage battery 23 into an alternating power and outputs it to the electromagnetic coil 12 to generate a changing alternating magnetic field.

[0036] In other embodiments, the circuit board 22 is also provided with a boost circuit 29, such as Figure 6 The boost circuit 29 is electrically connected to the oscillation circuit 28, which boosts the alternating current output by the oscillation circuit 28 and outputs it to the electromagnetic coil 12. The boosted alternating current output is high frequency, high voltage and low current. While improving the energy conversion efficiency of the alternating magnetic field, the low current ensures the safety of electricity use.

[0037] In other embodiments, the electromagnetic coil 12 is enameled wire.

[0038] like Figure 7In this embodiment, the oscillation circuit 28 includes a high-frequency oscillation transformer T1, an oscillation transistor Q1, capacitors C1 and C2, resistors R1, R2, and R3. The positive terminal of the battery 23 is connected to one end of the winding L1 on the primary side of the high-frequency oscillation transformer T1. The other end of the winding L1 is connected to one end of capacitor C2. The other end of capacitor C2 is connected to the base B of the oscillation transistor Q1. The collector C of the oscillation transistor Q1 is connected to the positive terminal of the battery 23, and the emitter E of the oscillation transistor Q1 is connected to the high-frequency oscillation transformer T1. One end of the primary winding L3 is connected to one end of the button 24K, and the other end of the button 24K is connected to the negative terminal of the battery 23. The working indicator LED1 and the resistor R1 are connected in parallel to the battery 23 and the button 24K. The capacitor C1 is connected in parallel with the battery 23. One end of the resistor R2 is connected to the collector C of the oscillating transistor Q1, and the other end of the resistor R2 is connected to the base B of the oscillating transistor Q1. The resistor R3 is connected in parallel across the two ends of the winding L3. In this embodiment, the oscillating transistor Q1 is an NPN power transistor.

[0039] In this embodiment, the boost circuit 29 is a tripler rectifier circuit, such as... Figure 7 The boost circuit 29 includes diodes D1, D2, and D3, capacitors C3, C4, and C5, and resistor R4. Diodes D1, D2, and D3 are connected in series, with the anode of diode D1 connected to one end of winding L2 on the secondary side of the high-frequency oscillation transformer T1, and the cathode of diode D3 connected to the output of conductive contact 21. One end of capacitor C3 is connected to the cathode of diode D1, and the other end of capacitor C3 is connected to the other end of winding L2. One end of capacitor C4 is connected to the cathode of diode D2, and the other end of capacitor C4 is connected to the anode of diode D1. One end of capacitor C5 is connected to the cathode of diode D3, and the other end of capacitor C5 is connected to the anode of diode D2. One end of resistor R4 is connected to the cathode of diode D3, and the other end of resistor R4 is connected to the other end of winding L2. The other end of winding L2 is connected to the output of conductive contact 21.

[0040] like Figure 1 , Figure 5 A button 24 is provided on the heating base 2. Pressing the button 24 turns on the power to heat the thermos cup. The button 24 can be turned off at any time to stop the heating of the thermos cup.

[0041] like Figure 4 , Figure 5 The heating base 2 is equipped with a temperature sensor 25, which is arranged parallel to the conductive contact 21. The outer shell 15 is provided with a corresponding socket for the temperature sensor 25. When the insulated water cup is placed on the heating base 2, the temperature sensor 25 is inserted into the outer shell 15 through the socket. The temperature sensor 25 is electrically connected to the circuit board 22 and transmits the temperature signal to the circuit board 22. The temperature sensor 25 monitors the temperature inside the insulated water cup and stops heating when the appropriate temperature is reached.

[0042] like Figure 4 , Figure 5 A charging interface 26 is provided on the heating base 2. The charging interface 26 is connected to a charging circuit board 27. The charging interface 26 is electrically connected to the battery 23 through the charging circuit board 27, and the battery 23 is replenished with power through the charging interface 26.

[0043] In this embodiment, the metal inner liner 11 is made of 304 stainless steel in one piece.

[0044] The heating base 2 is also equipped with a control panel (shown in the attached diagram). The control panel is electrically connected to the circuit board 22. The control panel can set and display the heating temperature and heating time. When the set temperature or time is reached, the disconnect button 24 stops the heating.

[0045] The basic working principle of this utility model is as follows: When the thermos cup is placed on the heating base 2, the button 24 is turned on, the battery 23 releases DC current, the DC current passes through the oscillation circuit 28 and the boost circuit 29 to output a high-frequency AC current, the AC current flows through the conductive contact 21 and the conductive contact piece 16 to the electromagnetic coil 12, the changing magnetic field of the electromagnetic coil 12 causes eddy currents to be generated in the metal inner liner 11, the eddy currents heat the metal inner liner 11 and thus heat the liquid inside the metal inner liner 11.

[0046] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A portable health preserving and warming cup, characterized in that: The device includes a cup body (1) and a heating base (2). The cup body (1) includes an inner cup (17), a heat insulation layer (14), and an outer shell (15). The inner cup (17) is disposed inside the outer shell (15), and the heat insulation layer (14) is disposed between the inner cup (17) and the outer shell (15). The inner cup (17) includes a metal inner liner (11), an electromagnetic coil (12), and an insulating layer (13). The electromagnetic coil (12) is disposed around the outer surface of the metal inner liner (11), and the insulating layer (13) covers the electromagnetic coil (12). The heating base (2) is provided with a circuit board (22). The cup body (1) sits on the heating base (2). The circuit board (22) is electrically connected to the electromagnetic coil (12). The circuit board (22) provides electrical energy to the electromagnetic coil (12) to generate an alternating magnetic field.

2. The portable health preserving and warming cup according to claim 1, characterized in that: The bottom of the outer casing (15) is provided with two conductive contacts (16), which are electrically connected to the electromagnetic coil (12) respectively.

3. The portable health preserving and warming cup according to claim 2, characterized in that: The heating base (2) is provided with two conductive contacts (21), and the two conductive contacts (21) are electrically connected to the circuit board (22) respectively.

4. The portable health preserving and warming cup according to claim 1, characterized in that: The heating base (2) is equipped with a storage battery (23), which is electrically connected to the circuit board (22). The circuit board (22) is equipped with an oscillation circuit (28), which is electrically connected to the storage battery (23). The oscillation circuit (28) converts the DC power output by the storage battery (23) into an alternating current output.

5. The portable health preserving and warming cup according to claim 4, characterized in that: The circuit board (22) is also provided with a boost circuit (29), which is electrically connected to the oscillation circuit (28). The boost circuit (29) boosts the alternating current output by the oscillation circuit (28) and outputs it.

6. The portable health preserving and warming cup according to claim 4, characterized in that: The oscillation circuit (28) includes a high-frequency oscillation transformer T1, an oscillation transistor Q1, a capacitor C1, a capacitor C2, and a resistor R2. The high-frequency oscillation transformer T1 includes a winding L1 and a winding L3. One end of the winding L1 is connected to the positive terminal of the battery (23), and the other end is connected to the capacitor C2. One end of the winding L3 is connected to the emitter E of the oscillation transistor Q1, and the other end is connected to the negative terminal of the battery (23). The collector C of the oscillation transistor Q1 is connected to the positive terminal of the battery (23). The base B of the oscillation transistor Q1 is connected to the capacitor C2. The capacitor C1 is connected in parallel with the battery (23). The two ends of the resistor R2 are connected to the base B and the collector C of the oscillation transistor Q1, respectively.

7. The portable health preserving and warming cup according to claim 5, characterized in that: The boost circuit (29) includes diodes D1, D2, D3, C3, C4, and C5. Diodes D1, D2, and D3 are connected in series. The positive terminal of diode D1 is connected to one end of the winding L2 of the high-frequency oscillation transformer T1. One end of capacitor C3 is connected to the negative terminal of diode D1, and the other end is connected to the other end of the winding L2. One end of capacitor C4 is connected to the negative terminal of diode D2, and the other end is connected to the positive terminal of diode D1. One end of capacitor C5 is connected to the negative terminal of diode D3, and the other end is connected to the positive terminal of diode D2.

8. The portable health preserving and warming cup according to claim 1, characterized in that: The heating base (2) is equipped with a temperature sensor (25), which is electrically connected to the circuit board (22). The temperature sensor (25) is inserted into the outer shell (15) to monitor the temperature of the metal inner liner (11).

9. The portable health preserving and warming cup according to claim 4, characterized in that: The heating base (2) is provided with a charging interface (26), which is connected to a circuit board. The charging interface (26) is electrically connected to the battery (23) via the circuit board.

10. The portable health preserving and warming cup according to claim 1, characterized in that: The heating base (2) is also provided with a control panel, which is electrically connected to the circuit board (22).