Intelligent water heating cup with TDS water quality detection function

Abstract

The utility model discloses an intelligent water heating cup with a TDS water quality detection function, and relates to the technical field of water heating cup equipment. A heating device and an inner container used for containing liquid are arranged in the water heating cup; the heating device comprises a metal heat conduction surface; the heating device is connected with an inner cavity of the inner container only through the metal heat conduction face. The warm water cup further comprises an NTC probe and a TDS chip, and the NTC probe partially penetrates into an inner cavity of the inner container to detect the temperature of liquid. The TDS chip comprises a first signal line and a second signal line; the first signal line is connected with the metal heat-conducting surface, the second signal line is connected with the NTC probe, and finally, the electric conductivity of the water is detected by using a loop formed by the water, the metal heat-conducting surface, the NTC probe and the TDS chip so as to obtain a TDS value; compared with the prior art, the water heating cup has the advantages of being simple, reliable, lower in cost and easy to produce and maintain, and an existing water heating cup can be conveniently upgraded and reformed.

Description

Technical Field

[0001] The utility model relates to the technical field of warm water cup equipment, in particular to an intelligent warm water cup with TDS water quality detection function. Background Art

[0002] In daily life, people often need to keep the temperature of drinks in different occasions and times, such as hot water in winter, cold drinks in summer, or brewed coffee, tea, etc. Traditional cups often cannot effectively keep the water temperature, while warm water cups can keep the water temperature for a long time through their unique insulation design, meeting people's demand for drink temperature.

[0003] The smart water heater is a further improvement on the water heater. The smart water heater combines advanced intelligent technology to accurately control the temperature of the drink and intelligently adjust it according to the needs of the user. Whether it is needed for quick heating or long-term heat preservation, the smart water heater can provide personalized services according to the needs of the user. In addition, some smart water heaters also have functions such as temperature display and intelligent reminder, making it more convenient and intuitive to use.

[0004] For example, the patent document with the announcement number CN219895312U provides a portable self-heating water cup. Like the common water cup design, this solution has a built-in heating device in the cup, and separates the heating device from the inner tank that stores the liquid, leaving only the heat conductive sheet to conduct the heat generated by the heating device to the liquid. In order to achieve intelligent heating and precise temperature control, the water cup is also equipped with a temperature measuring unit such as NTC (Negative Temperature Coefficient Sensor, a temperature sensor).

[0005] In addition to maintaining temperature, more and more users have higher requirements for the quality of drinking water. In the field of water quality testing and home appliances, the quality of drinking water is usually reflected by the TDS (Total dissolved solids) test results. However, the current smart water cups only focus on precise temperature control, and simply boil the water or keep it warm for drinking, ignoring water quality testing. Users cannot understand the water quality in the cup in time.

[0006] Therefore, it is urgent to provide a smart warm water cup with TDS water quality detection to solve the above technical problems. Summary of the invention

[0007] In view of the problems in the related technology, the utility model proposes an intelligent warm water cup with TDS water quality detection, which has the TDS detection function and is simple, reliable and lower in cost.

[0008] The utility model is achieved in this way:

[0009] A smart warm water cup with TDS water quality detection, comprising a heating device and an inner liner for containing liquid; the heating device is used to heat the liquid in the inner liner, and comprises a metal heat-conducting surface; the heating device is connected to the inner cavity of the inner liner only through the metal heat-conducting surface;

[0010] The warm water cup also includes an NTC probe and a TDS chip. The NTC probe partially penetrates into the inner cavity of the inner pot to detect the temperature of the liquid. The TDS chip includes a first signal line and a second signal line. The first signal line is connected to the metal heat-conducting surface and is connected to the liquid in the inner pot through the metal heat-conducting surface. The second signal line is connected to the NTC probe and is connected to the liquid in the inner pot through the NTC probe.

[0011] The metal heat-conducting surface is connected to the inner cavity of the inner tank, that is, when the inner tank contains liquid, the liquid contacts the metal heat-conducting surface, but other parts of the heating device are sealed and isolated from the inner cavity of the inner tank.

[0012] TDS is the abbreviation of Total Dissolved Solids, which refers to the concentration of total dissolved substances in water, with the unit of milligrams per liter (mg / L). It mainly reflects the concentration of calcium, magnesium, sodium, potassium and other ions in water, and has a good correspondence with the hardness and conductivity of water. The smaller the TDS value, the lower the concentration of calcium, magnesium, sodium, potassium and other ions in water, and the lower the conductivity. The conventional solution is to set a TDS probe and extend it into the inner tank to contact the water to detect the TDS value of the water; in this solution, a circuit composed of water, metal thermal conductive surface, NTC probe and TDS chip is used to detect the conductivity of water, and then the TDS value is obtained;

[0013] In contrast, this solution saves a TDS probe, as well as the corresponding opening and mounting position on the inner tank, and utilizes the metal conductive properties of the NTC and thermal conductive surface to detect the TDS value. It has the advantages of being simple and reliable, lower cost, and easy to produce and maintain, and is also convenient for upgrading existing hot water cups.

[0014] As a further optimization of the above solution, the heating device is arranged at the bottom of the inner pot; the NTC probe is installed on the side of the inner pot, or on the metal heat-conducting surface.

[0015] As a further optimization of the above solution, a mounting port is provided in the warm water cup, and the mounting port is opened on the side of the inner tank, or is provided on the metal heat-conducting surface; the NTC probe and the mounting port are adapted to each other.

[0016] The mounting opening is connected to the inner cavity of the inner liner and the cavity of the warm water cup outside the inner liner.

[0017] As a further optimization of the above solution, a sealing ring is further provided between the NTC probe and the installation port, and the sealing ring is made of a non-conductive material.

[0018] The sealing ring is set on the side of the NTC probe; on the one hand, the sealing ring is used as an insulating material to seal the inner cavity of the inner liner and the cavity outside the inner liner; on the other hand, the thermal conductive surface is made of metal materials, such as 304 stainless steel, and the inner liner can be made of glass or 304 stainless steel. Metal materials such as 304 stainless steel are conductive, and the NTC probe is also conductive. If the thermal conductive surface or inner liner made of metal directly contacts the NTC probe, it will cause a short circuit and make the TDS detection invalid. Therefore, the sealing ring made of non-conductive material is used to prevent the NTC probe from contacting the metal thermal conductive surface and inner liner.

[0019] As a further optimization of the above solution, a concave positioning groove is provided on the side of the inner container, and the installation opening is opened at the bottom of the positioning groove;

[0020] Or the metal heat-conducting surface is provided with a concave positioning groove, and the mounting opening is opened at the bottom of the positioning groove.

[0021] The NTC probe is a smaller structure, and providing a positioning groove can assist in the installation of the NTC probe.

[0022] As a further optimization of the above solution, the positioning groove gradually shrinks from inside to outside; or the positioning groove gradually shrinks from top to bottom.

[0023] The contracted surface forms an inclined surface or a curved surface, which further improves the convenience of installing the NTC probe.

[0024] As a further optimization of the above solution, the top of the peripheral side of the NTC probe protrudes outward to form a limiting protrusion; during installation, the bottom of the NTC probe passes through the sealing ring and is then inserted into the installation port from the inner cavity of the liner.

[0025] As a further optimization of the above solution, the bottom of the NTC probe is provided with a thread, and the thread is adapted to the nut; during installation, the NTC probe is inserted into the installation port, and the nut is installed outside the inner tank.

[0026] A nut is provided to further improve the stability and sealing of the NTC probe installation.

[0027] As a further optimization of the above scheme, the warm water cup includes a cup body and a cup cover, the heating device is arranged in the cup cover, and only the metal heat-conducting surface is exposed outward; the inner liner is arranged in the cup body, and the inner liner is provided with a first opening facing downward; the metal heat-conducting surface and the first opening are adapted to each other; the NTC probe is arranged on the metal heat-conducting surface.

[0028] When the user wants to heat the water in the cup or test the TDS, he only needs to put the cup cover in the lower position to heat or test; when the user wants to drink water, he only needs to put the cup body in the lower position and open the cup cover to drink water.

[0029] As a further optimization of the above solution, the inner liner is further provided with a second opening on the opposite side of the first opening; the warm water cup further comprises a waterproof plug cover; the waterproof plug cover passes through the cup body and is adapted to the second opening.

[0030] When the user wants to drink water, the user can also place the cup cover in the lower position and open the waterproof plug cover to drink water.

[0031] The beneficial effects are as follows:

[0032] The utility model provides an intelligent warm water cup with TDS water quality detection. A metal heat conductive surface connected to an inner tank and an NTC probe partially extending into the inner tank are arranged in the warm water cup, a TDC chip is arranged outside the inner tank, a first signal line and a second signal line on the TDC chip are respectively connected to the metal heat conductive surface and the NTC probe, and a loop composed of water, the metal heat conductive surface, the NTC probe and the TDS chip is used to detect the conductivity of water, and then the TDS value is obtained. Compared with the prior art, the present solution saves a TDS probe, as well as a corresponding opening and mounting position on the inner tank, and utilizes the metal conductive characteristics of the NTC and the heat conductive surface to detect the TDS value. The present solution has the advantages of being simple and reliable, lower cost, and easy to produce and maintain, and is also convenient for upgrading and transforming the existing warm water cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the structure of a warm water cup provided by an embodiment of the utility model;

[0034] Figure 2 for Figure 1 A local enlarged schematic diagram at point a.

[0035] Reference numerals:

[0036] 1. Cup body;

[0037] 2. Cup lid;

[0038] 3. Inner liner; 31. First opening; 32. Second opening; 33. Waterproof plug cover;

[0039] 4. Heating device; 41. Metal heat conducting surface; 42. Positioning groove; 43. Mounting port;

[0040] 5. NTC probe; 51. limit convex part; 52. thread;

[0041] 6. Sealing ring;

[0042] 7. TDS chip; 71. first signal line; 72. second signal line;

[0043] 8. Nut. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] like Figure 1 , Figure 2 As shown, this embodiment provides a smart warm water cup with TDS water quality detection, including a cup body 1 and a cup cover 2;

[0046] The cup body 1 is provided with an inner liner 3 made of glass, and the inner liner 3 is used to contain liquid; the inner liner 3 is provided with a first opening 31 opening downward, and a second opening 32 opening upward; the hot water cup also includes a waterproof plug cover 33, and the surface of the waterproof plug cover is made of elastic silicone material; the waterproof plug cover 33 passes through the cup body 1 and is adapted to the second opening 32; an insulating cavity is formed between the inner liner 3 and the cup body 1, which has a heat-insulating effect.

[0047] A heating device 4 is provided in the cup cover 2 for heating the liquid in the inner liner 3. The heating device 4 includes a metal heat-conducting surface 41, and the metal material of the metal heat-conducting surface 41 is 304 stainless steel. Only the metal heat-conducting surface 41 of the heating device 4 in the cup cover 2 is exposed outward. When the cup cover 2 is installed on the first opening 31, the heating device 4 is connected to the inner cavity of the inner liner 3 only through the metal heat-conducting surface 41, that is, when the inner liner 3 contains liquid, the liquid contacts the metal heat-conducting surface 41, but the other parts of the heating device 4 are sealed and isolated from the inner cavity of the inner liner 3.

[0048] In this embodiment, a concave positioning groove 42 is provided on the metal heat conducting surface 41, and the positioning groove 42 gradually shrinks from top to bottom; a mounting opening 43 is provided at the bottom of the positioning groove 42. Below the mounting opening 43 is a cavity, and the surrounding side is a heating pipe of the heating device 4, etc.;

[0049] The warm water cup further includes an NTC probe 5 and a TDS chip 7; wherein the TDS chip 7 is installed in a cavity below the installation opening 43 and inside the cup cover 2, and the TDS chip 7 further includes a first signal line 71 and a second signal line 72;

[0050] In this embodiment, the top of the peripheral side of the NTC probe 5 protrudes outward to form a limiting protrusion 51; the peripheral side of the NTC probe 5 is provided with a waterproof and anti-conductive sealing ring 6 made of non-conductive silicone below the limiting protrusion 51; the peripheral side of the NTC probe 5 is provided with a thread 52 below the sealing ring 6; after the NTC probe 5 partially passes through the installation port 43, the nut 8 is matched and connected with the thread 52.

[0051] The NTC probe 5 is a relatively small structure. The positioning groove 42 and its shrinkage surface can improve the convenience of installing the NTC probe 5. The nut 8 is provided to improve the stability and sealing of the installation of the NTC probe 5. The sealing ring 6 is sleeved on the peripheral side of the NTC probe 5; on the one hand, the sealing ring 6 is used as an insulating material to seal the inner cavity of the inner liner 3 and the cavity outside the inner liner 3; on the other hand, the thermal conductive surface is made of metal material, such as 304 stainless steel, and the inner liner 3 can be made of glass or 304 stainless steel. Metal materials such as 304 stainless steel are conductive, and the NTC probe 5 is also conductive. The direct contact between the thermal conductive surface or the inner liner 3 made of metal and the NTC probe 5 will cause a short circuit and make the TDS detection invalid. Therefore, the sealing ring 6 made of non-conductive material is used to prevent the NTC probe 5 from contacting the metal thermal conductive surface 41 and the inner liner 3.

[0052] The first signal line 71 is connected to the metal heat-conducting surface 41, and is connected to the liquid in the inner pot 3 through the metal heat-conducting surface 41; the second signal line 72 is connected to the NTC probe 5, and is connected to the liquid in the inner pot 3 through the NTC probe 5. When there is water in the inner pot 3 and the cup cover 2 is in the lower position, the circuit composed of water, the metal heat-conducting surface 41, the NTC probe 5 and the TDS chip 7 can detect the conductivity of the water and obtain the TDS value;

[0053] When the user wants to heat the water in the cup or test the TDS, the user only needs to put the cup cover 2 in the lower position to heat or test;

[0054] When the user wants to drink water, he only needs to put the cup body 1 in the lower position and open the cup cover 2 to drink water; or put the cup cover 2 in the lower position and open the waterproof plug cover 33 to drink water.

[0055] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A smart warm water cup with TDS water quality detection, comprising a heating device and an inner liner for containing liquid; the heating device is used to heat the liquid in the inner liner, and comprises a metal heat-conducting surface; the characteristics are: The heating device is connected to the inner cavity of the inner container only through the metal heat-conducting surface; The warm water cup also includes an NTC probe and a TDS chip. The NTC probe partially penetrates into the inner cavity of the inner pot to detect the temperature of the liquid. The TDS chip includes a first signal line and a second signal line. The first signal line is connected to the metal heat-conducting surface and is connected to the liquid in the inner pot through the metal heat-conducting surface. The second signal line is connected to the NTC probe and is connected to the liquid in the inner pot through the NTC probe.

2. The intelligent warm water cup with TDS water quality detection according to claim 1, characterized in that: The heating device is arranged at the bottom of the inner pot; the NTC probe is installed on the side of the inner pot or on the metal heat-conducting surface.

3. The intelligent warm water cup with TDS water quality detection according to claim 2, characterized in that: The warm water cup is provided with a mounting opening, which is opened on the side of the inner liner or arranged on the metal heat-conducting surface; the NTC probe is adapted to the mounting opening.

4. The intelligent warm water cup with TDS water quality detection according to claim 3, characterized in that: A sealing ring is also provided between the NTC probe and the installation port, and the sealing ring is made of a non-conductive material.

5. The intelligent warm water cup with TDS water quality detection according to claim 3, characterized in that: A concave positioning groove is provided on the side of the inner container, and the installation opening is opened at the bottom of the positioning groove; Or the metal heat-conducting surface is provided with a concave positioning groove, and the mounting opening is opened at the bottom of the positioning groove.

6. The intelligent warm water cup with TDS water quality detection according to claim 5, characterized in that: The positioning groove gradually shrinks from inside to outside; or the positioning groove gradually shrinks from top to bottom.

7. The intelligent warm water cup with TDS water quality detection according to claim 4, characterized in that: The top of the peripheral side of the NTC probe protrudes outward to form a limiting convex portion; during installation, the bottom of the NTC probe passes through the sealing ring and is then inserted into the installation port from the inner cavity of the inner tank.

8. The intelligent warm water cup with TDS water quality detection according to claim 7, characterized in that: The bottom of the NTC probe is provided with a thread, and the thread is matched with a nut; during installation, the NTC probe is inserted into the installation port, and the nut is installed outside the inner tank.

9. The intelligent warm water cup with TDS water quality detection according to claim 4, characterized in that: The warm water cup includes a cup body and a cup cover, the heating device is arranged in the cup cover, and only the metal heat-conducting surface is exposed outward; the inner liner is arranged in the cup body, and the inner liner is provided with a first opening facing downward; the metal heat-conducting surface and the first opening are adapted to each other; the NTC probe is arranged on the metal heat-conducting surface.

10. The intelligent warm water cup with TDS water quality detection according to claim 9, characterized in that: The inner liner is further provided with a second opening on the opposite side of the first opening; the warm water cup further comprises a waterproof plug cover; the waterproof plug cover passes through the cup body and is adapted to the second opening.

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