Heatable cup cover and vacuum cup

By integrating the heating element and temperature control module into the lid, the safety hazards and space occupation issues of heated and insulated cups are solved, achieving improved stability and capacity, and creating a portable heated and insulated cup design.

CN223886626UActive Publication Date: 2026-02-10THERMOS (JIANGSU) HOUSEWARES CO LTD
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Patent Information

Application Number
CN202520330565.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-02-10
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

Existing heated and insulated cups have the problems of leakage risk and safety hazards, lithium battery safety risks in high temperature environment, reduced capacity due to components occupying the inner liner space, and instability and easy tipping of the cup.

Method used

Design a heatable cup lid, including a stopper, an inner stopper, a heating element, and a temperature control module. The heating element and the temperature control module are concentrated inside the cup lid. Lightweight materials are used. Combined with the polystyrene module and the temperature control module, safe heating is achieved through a touch display control screen and a temperature sensor, avoiding taking up space in the cup body.

Benefits of technology

It achieves a safe and reliable heating function, avoids the risk of electric leakage, improves the stability and capacity of the cup, and reduces the size and weight of the cup, making it easy to carry.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223886626U_ABST
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Abstract

The utility model discloses a heatable cup lid and a vacuum cup, and relates to the vacuum cup technical field, the heatable cup lid comprises a plug body, an inner plug, a heating assembly, a temperature control module assembly and an upper cover, the upper cover is arranged on the upper end of the plug body, the temperature control module assembly is arranged in a cavity formed between the plug body and the upper cover, the inner plug is arranged on the lower end of the plug body, and the heating assembly is arranged on the inner plug. A heating assembly is installed in a cavity formed between the inner plug and the plug body and connected with the temperature control module assembly. According to the utility model, through the arrangement of the upper cover, the plug body and the inner plug, the interlayer is formed in the cup cover, the heating assembly and the temperature control module can be isolated and installed, the heating assembly and the temperature control module are concentrated in the cup cover, the stability of the whole cup body is not influenced, the cup body is not prone to toppling over, and the volume space of the cup body is prevented from being occupied.
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Description

Technical Field

[0001] This utility model relates to the field of thermos cup technology, and in particular to a heatable cup lid and a thermos cup. Background Technology

[0002] Many insulated water bottles on the market are powered by electricity, often using a three-phase AC high-power plug or a built-in lithium battery. They integrate a heating plate and various components inside the bottom. Since the bottle body is made of metal, a leak in these components could result in a voltage high enough to cause injury or death. Furthermore, lithium batteries pose a safety risk when exposed to high temperatures for extended periods.

[0003] Because the components, leads, and plugs are relatively large, they take up space at the bottom of the inner liner, reducing the actual usable capacity of the thermos and making it larger, heavier, and less portable. The bottom of the thermos is also relatively light, resulting in poor overall stability and making it easy to tip over. Utility Model Content

[0004] The purpose of this invention is to provide a heatable cup lid and a thermos cup to solve the above-mentioned technical problems.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A heatable cup lid includes a stopper body, an inner stopper, a heating element, a temperature control module assembly, and a top cover. The top cover is disposed at the upper end of the stopper body. The temperature control module assembly is disposed in the cavity formed between the stopper body and the top cover. The inner stopper is installed at the lower end of the stopper body. The heating element is installed in the cavity formed between the inner stopper and the stopper body. The heating element is connected to the temperature control module assembly.

[0007] Preferably, the assembly also includes a polystyrene module, which is disposed within the cavity formed by the top cover and the plug, and is located on one side of the temperature control module assembly.

[0008] Preferably, the top cover is welded to the upper surface of the plug.

[0009] Preferably, the upper end of the plug is provided with a welding groove, which includes a first trapezoidal groove and two second trapezoidal grooves, wherein one of the second trapezoidal grooves is located inside the other second trapezoidal groove, and the first trapezoidal groove is located between the two second trapezoidal grooves and communicates with the two second trapezoidal grooves.

[0010] As a further preferred embodiment, the lower surface of the upper cover is provided with a welding rib that mates with the first trapezoidal groove.

[0011] Preferably, the assembly also includes a Type-C female connector. A mounting hole is provided on one side of the plug body, and the Type-C female connector is disposed in the mounting hole. The Type-C female connector, the heating element, and the temperature control module assembly are connected by a lead wire.

[0012] Preferably, the cross-section of the inner plug is arranged in an "arch" shape, and the lower end of the plug body is provided with a slot for installing the inner plug.

[0013] As a further preferred embodiment, the upper end of the inner plug is disposed within the slot and is interference-fitted with the slot.

[0014] As a further preferred embodiment, a silicone ring is also included, wherein the silicone ring is disposed inside the upper end of the inner plug.

[0015] A thermos cup includes a heatable lid and a cup body, the lid being disposed at the upper end of the cup body.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] In this invention, the arrangement of the top cover, the stopper and the inner stopper creates a sandwich structure inside the cup lid, which can isolate and install the heating element and the temperature control module. By concentrating the heating element and the temperature control module inside the cup lid, the stability of the entire cup body is not affected, making it less likely to tip over and avoiding taking up space in the cup body itself. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of the heatable cup lid of this utility model;

[0019] Figure 2 This is a schematic diagram of the welding groove in this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the fit between the cup lid and the cup body in this utility model.

[0021] In the diagram: 1. Plug body; 2. Inner plug; 3. Heating element; 4. Temperature control module assembly; 5. Top cover; 6. Polystyrene module; 7. Welding groove; 8. First trapezoidal groove; 9. Second trapezoidal groove; 10. Type-C female connector; 11. Lead wire; 12. Card slot; 13. Silicone ring; 14. Cup body. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Figure 1 This is a cross-sectional schematic diagram of the heatable cup lid of this utility model; Figure 2 This is a schematic diagram of the welding groove in this utility model; please refer to [link / reference]. Figures 1 to 2 The image shows a preferred embodiment of a heatable cup lid, comprising a stopper 1, an inner stopper 2, a heating element 3, a temperature control mold assembly 4, and a top cover 5. The top cover 5 is located at the upper end of the stopper 1. The temperature control mold assembly 4 is disposed within the cavity formed between the stopper 1 and the top cover 5. The inner stopper 2 is installed at the lower end of the stopper 1. The heating element 3 is installed within the cavity formed between the inner stopper 2 and the stopper 1. The heating element 3 is connected to the temperature control mold assembly 4. In this embodiment, see [reference needed]. Figure 1 As shown, the inner plug 2 is made of stainless steel. The inner plug 2 is fastened to the lower end of the plug body 1, forming a cavity between the inner plug 2 and the plug body 1. The lower inner wall of the inner plug 2 has a gap of more than 6mm with the lower end of the plug body 1 to prevent the heating component 3 from directly contacting the plug body 1, which would cause the generated heat to directly contact the plug body 1 and thus damage the plug body 1.

[0026] The heating element 3 is an electric heating wire heating plate, which is welded to the lower inner wall of the inner plug 2. The heating wire heating plate is made of lightweight materials such as aluminum to reduce product weight and facilitate portability. There is a gap between the heating wire heating plate and the plug body 1. The temperature control module 4 includes a PLC controller and a sensor probe. The sensor probe and the electric heating wire heating plate are connected to the PLC controller. The sensor probe detects the water level inside the cup. When the cup body 14 is inverted, the water inside the cup body 14 submerges the sensor probe, which then generates a signal that is transmitted to the PLC controller. The PLC controller then controls the electric heating wire heating plate to operate. The sensor probe is located at the bottom of the inner plug 2 and is connected to the PLC controller via a wire that passes through the inner plug 2. The connection between the wire and the inner plug 2 is waterproofed. The sensor probe can be a water-immersible sensor probe.

[0027] In this embodiment, the upper cover 5 may be equipped with a touch display control screen, which is connected to a PLC controller. The heating temperature or heating temperature range of the heating element can be preset via the touch display control screen, facilitating the control of the internal temperature of the cup body 14 within a reasonable range. From a safety and practicality perspective, the temperature control module assembly 4 is set to 55℃, ensuring immediate drinking.

[0028] Furthermore, as a preferred embodiment, it also includes a polystyrene module 6. The polystyrene module 6 is disposed within the cavity formed by the upper cover 5 and the plug body 1, and is located on one side of the temperature control module assembly 4. The polystyrene module 6 is block-shaped and can play an auxiliary role in heat preservation, while also providing heat insulation to prevent heat loss from the top of the plug body 1 during the heating process of the heating element.

[0029] Furthermore, as a preferred embodiment, the upper cover 5 is welded to the upper surface of the plug 1, specifically using ultrasonic hot melt welding. The upper end of the plug 1 is provided with a welding groove 7, which includes a first trapezoidal groove 8 and two second trapezoidal grooves 9. One second trapezoidal groove 9 is located inside the other second trapezoidal groove 9, and the first trapezoidal groove 8 is located between and communicates with the two second trapezoidal grooves 9. The lower surface of the upper cover 5 is provided with welding ribs that cooperate with the first trapezoidal groove 8. The width of the first trapezoidal groove 8 is greater than the width of the second trapezoidal groove 9. During ultrasonic hot melt welding, the welding ribs at the bottom of the upper cover 5 vibrate and melt, and under pressure, excess molten material flows into the two second trapezoidal grooves 9, increasing the molten welding surface and improving welding strength and firmness. One side cross-section of both the first trapezoidal groove 8 and the second trapezoidal groove 9 has a trapezoidal structure that is wider at the top and narrower at the bottom. The height of the upper surface of the first trapezoidal groove 8 and the second trapezoidal groove 9 is lower than the height of the upper surface of the plug 1. The first trapezoidal groove 8 and the second trapezoidal groove 9 are both distributed in a shape on the upper end of the plug body 1.

[0030] Furthermore, as a preferred embodiment, it also includes a Type-C female connector 10. A mounting hole is provided on one side of the plug body 1, and the Type-C female connector 10 is disposed within the mounting hole. The Type-C female connector 10, the heating element 3, and the temperature control module assembly 4 are connected by a lead wire 11. The Type-C female connector 10 is selected to have a waterproof rating. The pins of the Type-C female connector 10 are sealed and fixed to the plug body 1, and the periphery is sealed with an airtight adhesive. The lead wire 11 is a conductive wire used to provide electrical power.

[0031] Furthermore, as a preferred embodiment, the cross-section of the inner plug 2 is generally arranged in an "arch" shape, and a slot 12 for installing the inner plug 2 is provided at the lower end of the plug body 1. See also Figure 1 As shown, the cross-section of the inner plug 2 refers to its longitudinal section. The overall cross-section of the inner plug 2 is shaped like an "arch" after being rotated 90° counterclockwise. The upper end of the inner plug 2 is located within the slot 12 and is press-fitted with the slot 12. The inner plug 2 is made of stainless steel. The press-fit between the upper end of the inner plug 2 and the slot 12 inside the plug body 1 prevents the inner plug 2 from rotating and affecting the overall integrity.

[0032] Furthermore, as a preferred embodiment, a silicone ring 13 is also included. The silicone ring 13 is disposed inside the upper end of the inner plug 2, and can be securely fitted inside the upper end of the inner plug 2, preventing it from easily falling off. The silicone ring 13 is used to engage with the opening at the upper end of the cup body 14 to prevent water leakage from inside the cup body 14.

[0033] The above are merely preferred embodiments of the present utility model, and do not limit the scope of protection and implementation of the present utility model. Based on the above embodiments, the present utility model also has the following embodiments:

[0034] See Figure 3 As shown, a thermos cup is provided, including a heatable lid and a cup body 14. The lid is located at the upper end of the cup body 14. The cup body 14 and the inner plug 2 can be threaded or screwed together. The cup body 14 is a vacuum thermos cup, which can lock in the water temperature for a long time. The temperature control module assembly 4 is lightweight and fixed inside the lid, without affecting the capacity of the inner liner of the cup body 14.

[0035] When heating the water inside the cup body 14 is required, the heating temperature of the heating element 3 can be pre-input via the touch display control screen. The thermos is then placed upside down, with the lid facing down and the cup body 14 facing up. When the sensor probe touches the water, it transmits a signal to the PLC controller. The PLC controller then automatically activates the heating element 3 to heat the water inside the cup body 14. Once the preset temperature is reached, the PLC controller automatically stops the heating element 3. A temperature sensor can be installed at the bottom of the inner plug 2 to detect the temperature inside the cup body 14. This temperature sensor is connected to the PLC controller. When the temperature reaches the preset value, the temperature sensor sends a signal to the PLC controller, which then stops the heating element 3 from operating.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heatable cup lid, characterized in that, The device includes a plug body, an inner plug, a heating element, a temperature control module assembly, and a top cover. The top cover is provided at the upper end of the plug body. The temperature control module assembly is disposed in the cavity formed between the plug body and the top cover. The inner plug is installed at the lower end of the plug body. The heating element is installed in the cavity formed between the inner plug and the plug body. The heating element is connected to the temperature control module assembly.

2. The heatable cup lid as described in claim 1, characterized in that, It also includes a polystyrene module, which is disposed in the cavity formed by the top cover and the plug, and the polystyrene module is located on one side of the temperature control module assembly.

3. The heatable cup lid as described in claim 1, characterized in that, The top cover is welded to the upper surface of the plug.

4. The heatable cup lid as described in claim 1, characterized in that, The upper end of the plug is provided with a welding groove, which includes a first trapezoidal groove and two second trapezoidal grooves. One of the second trapezoidal grooves is located inside the other second trapezoidal groove, and the first trapezoidal groove is located between the two second trapezoidal grooves and communicates with the two second trapezoidal grooves.

5. The heatable cup lid as described in claim 4, characterized in that, The lower surface of the upper cover is provided with welding ribs that mate with the first trapezoidal groove.

6. The heatable cup lid as described in claim 1, characterized in that, It also includes a Type-C female connector, and a mounting hole is provided on one side of the plug body. The Type-C female connector is disposed in the mounting hole, and the Type-C female connector, the heating element and the temperature control module are connected by a lead wire.

7. The heatable cup lid as described in claim 1, characterized in that, The cross-section of the inner plug is generally arranged in the shape of an "arch", and a slot for installing the inner plug is provided at the lower end of the plug body.

8. The heatable cup lid as described in claim 7, characterized in that, The upper end of the inner plug is located inside the slot and is interference-fitted with the slot.

9. The heatable cup lid as described in claim 7, characterized in that, It also includes a silicone ring, which is disposed inside the upper end of the inner plug.

10. A thermos cup, comprising the heatable lid as described in any one of claims 1-9, characterized in that, It also includes a cup body, with the cup lid located at the upper end of the cup body.