A thermostat heating cup mat
By combining voice recognition and weighing sensors in the control system, along with the design of acrylic panels and heat insulation panels, the problems of heating empty cups and uneven heating in existing heated coasters have been solved. This has enabled intelligent constant temperature control and safe heating, extending the lifespan of the equipment and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO JINGCHENG INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-12
AI Technical Summary
Existing heated coasters continue to heat even when the cup is empty, which wastes resources and poses safety hazards. Furthermore, the simple control method makes them prone to uneven heating or localized overheating.
The system employs a control method that combines a voice recognition module and a weighing sensor. Voice commands control the start, stop, and temperature of heating, while the weighing sensor determines the amount of water in the cup to prevent heating an empty cup. An acrylic plate is used as the bearing surface to ensure that the cup is accurately aligned with the heating element. The wires are designed with a spring wire structure to prevent breakage. The internal heat insulation plate uses a low thermal conductivity material to isolate high-temperature components, protecting the sensor and reducing the temperature of the outer shell.
It achieves intelligent constant temperature control, avoids heating with an empty cup, improves heating efficiency and safety, extends equipment life, and enhances human-machine interaction convenience and usage safety.
Smart Images

Figure CN224344658U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heated coaster technology, specifically a constant temperature heated coaster. Background Technology
[0002] A heated coaster is a small household appliance that heats the bottom of a cup to keep the beverage inside warm.
[0003] Chinese Patent No. 202221515695.3 discloses a heated coaster, including a housing, a heating element, and a control module. The heating element is used to heat the heating panel on the top of the housing. It also includes a warm air supply assembly disposed inside the housing. The warm air supply assembly includes an air inlet and an air outlet disposed in the housing, an air duct connecting the air inlet and the air outlet, and a fan and a heating assembly disposed in the air duct. The fan generates airflow that flows through the heating assembly to form a warm airflow that is discharged from the air outlet.
[0004] While the control method of this invention is relatively simple, it is prone to heating an empty cup, which not only wastes resources but also poses a danger. Utility Model Content
[0005] The purpose of this invention is to provide a constant temperature heating coaster to solve the problems mentioned in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a constant temperature heating coaster, comprising a coaster body; the coaster body consists of an outer shell and a holding plate, a protective shell is installed at the bottom of the holding plate, the bottom of the protective shell extends into the interior of the outer shell, a weighing sensor is installed between the bottom of the protective shell and the interior of the outer shell, a controller is installed at the front end of the outer shell, a voice recognition module is installed on the other side of the front end of the outer shell, a heating element is installed inside the bottom end of the holding plate, a temperature sensor is installed inside the protective shell, the temperature sensor, the heating element, the weighing sensor and the voice recognition module are connected to the controller via wires, a wire is installed at one end of the controller, and a conductive plug is installed at the end of the wire.
[0007] Preferably, a friction pad is provided at the bottom of the outer casing, and the friction pad is attached to the bottom of the outer casing with adhesive.
[0008] Preferably, an acrylic sheet is provided at the upper end of the holding plate, the acrylic sheet is attached to the upper side of the holding plate with adhesive, and a marking ring is provided on the upper side of the acrylic sheet.
[0009] Preferably, a spring wire is provided in the middle of the conductor, and the spring wire and the conductor are integrally formed.
[0010] Preferably, a heat insulation plate is provided inside the protective shell, and the heat insulation plate is attached to the inside of the protective shell with adhesive.
[0011] Preferably, a display is mounted on the upper side of the controller, and control buttons are mounted on the upper side of the controller at a position next to the display.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. Heating can be started, stopped, and the heating temperature can be controlled by voice. At the same time, the weight sensor can store the weight of the cup and identify the amount of water in the cup by comparison. The controller will automatically determine whether to continue heating based on the amount of water to avoid heating an empty cup and to prevent heating from continuing when there are no cups on the upper part of the serving plate.
[0014] 2. The acrylic plate, which is fixed to the upper part of the holding plate with adhesive, serves as the surface that directly supports the cup. It has high hardness and wear resistance, which can protect the heating element below from friction damage to the bottom of the cup. The marking ring on the upper part of the acrylic plate serves as a position guide: when the user places the cup in the marking ring, the bottom of the cup can be accurately aligned with the heating element below, ensuring concentrated heat conduction and avoiding reduced heating efficiency or local overheating due to positional deviation.
[0015] 3. The spring wire integrated with the conductor adopts a spiral elastic structure design. When the coaster needs to be moved or the conductor is frequently bent, the spring wire can absorb the bending stress through its own elastic deformation, avoiding the internal metal core from breaking or the outer sheath from being damaged due to rigid bending. This design allows the conductor to maintain structural integrity during long-term use, extends the electrical connection life of the equipment, and reduces equipment failure caused by conductor failure.
[0016] 4. The heat insulation board inside the protective shell, bonded with adhesive, is made of ceramic fiber, aerogel, and other heat insulation materials with extremely low thermal conductivity. When the heating element is working, the heat insulation board effectively blocks heat from being transferred into the protective shell. The heat generated by the heating element is mainly conducted upwards to the cup through the serving plate and acrylic plate. The temperature sensor, weighing sensor, and other components inside the protective shell are protected from high temperatures due to the insulation effect of the heat insulation board, ensuring the detection accuracy and service life of the sensors. At the same time, the heat insulation board also reduces heat transfer to the outer shell, lowers the surface temperature of the outer shell, and prevents burns when the user touches it. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2This is a top view of the structure of this utility model;
[0020] Figure 3 This is a side view of the internal structure of the present invention;
[0021] Figure 4 This is a schematic diagram of the internal structure of the protective shell of this utility model.
[0022] In the diagram: 1. Coaster body; 2. Voice recognition module; 3. Controller; 4. Outer shell; 5. Container plate; 6. Marking ring; 7. Wire; 8. Spring wire; 9. Conductive plug; 10. Display; 11. Control button; 12. Acrylic sheet; 13. Heating element; 14. Protective shell; 15. Heat insulation plate; 16. Temperature sensor; 17. Friction pad; 18. Weighing sensor. Detailed Implementation
[0023] 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 some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 In this embodiment of the utility model, a constant temperature heating coaster includes a coaster body 1; the coaster body 1 is composed of an outer shell 4 and a holding plate 5. A protective shell 14 is installed at the bottom of the holding plate 5, and the bottom of the protective shell 14 extends into the interior of the outer shell 4. A weighing sensor 18 is installed between the bottom of the protective shell 14 and the interior of the outer shell 4. A controller 3 is installed at the front end of the outer shell 4, and a voice recognition module 2 is installed on the other side of the front end of the outer shell 4. A heating element 13 is installed inside the bottom end of the holding plate 5, and a temperature sensor 16 is installed inside the protective shell 14. The temperature sensor 16, the heating element 13, the weighing sensor 18, and the voice recognition module 2 are connected to the controller 3 through a wire 7. A wire 7 is installed at one end of the controller 3, and a conductive plug 9 is installed at the end of the wire 7.
[0025] A friction pad 17 is provided at the bottom of the outer casing 4. The friction pad 17 is attached to the bottom of the outer casing 4 with adhesive. The friction pad 17 attached to the bottom of the outer casing 4 with adhesive is made of rubber or silicone and has a rough and elastic surface. When the coaster is placed on the table, the friction pad 17 is in close contact with the table. The friction force of the material itself and the surface texture increase the coefficient of friction with the table, thereby offsetting the influence of external force on the coaster, preventing the coaster from sliding during the heating process, ensuring the stable placement of the device, and avoiding uneven heating or liquid spillage due to positional displacement.
[0026] An acrylic plate 12 is provided on the upper end of the serving plate 5. The acrylic plate 12 is attached to the upper side of the serving plate 5 with adhesive. A marking ring 6 is provided on the upper side of the acrylic plate 12. The acrylic plate 12, which is fixed to the upper end of the serving plate 5 with adhesive, serves as the surface that directly supports the cup. It has high hardness and wear resistance, which can protect the heating element 13 below from friction damage to the bottom of the cup. The marking ring 6 on the upper side of the acrylic plate 12 serves as a position guide: when the user places the cup in the marking ring 6, the bottom of the cup can be accurately aligned with the heating element 13 below, ensuring concentrated heat conduction and avoiding reduced heating efficiency or local overheating due to positional deviation.
[0027] A spring wire 8 is installed in the middle of the conductor 7. The spring wire 8 and the conductor 7 are integrated. The spring wire 8, which is integrated with the conductor 7, adopts a spiral elastic structure design. When the coaster needs to be moved or the conductor 7 is frequently bent, the spring wire 8 can absorb the bending stress through its own elastic deformation, preventing the conductor 7 from breaking the internal metal core or damaging the outer sheath due to rigid bending. This design allows the conductor 7 to maintain its structural integrity during long-term use, extends the electrical connection life of the equipment, and reduces equipment failure caused by conductor 7 failure.
[0028] A heat insulation plate 15 is installed inside the protective shell 14. The heat insulation plate 15 is attached to the inside of the protective shell 14 with adhesive. The heat insulation plate 15 attached to the inside of the protective shell 14 with adhesive is made of heat insulation materials such as ceramic fiber and aerogel. Its thermal conductivity is extremely low. When the heating element 13 is working, the heat insulation plate 15 can effectively block the heat from being transferred to the inside of the protective shell 14. The heat generated by the heating element 13 is mainly conducted upward to the cup through the holding plate 5 and the acrylic plate 12. The temperature sensor 16, the weighing sensor 18 and other components inside the protective shell 14 are protected from high temperature due to the insulation effect of the heat insulation plate 15, ensuring the detection accuracy and service life of the sensors. At the same time, the heat insulation plate 15 can also reduce the heat transfer to the outer shell 4, reduce the surface temperature of the outer shell 4 and prevent the user from being burned when touching it.
[0029] A display 10 is mounted on the upper side of the controller 3, and control buttons 11 are mounted on the upper side of the controller 3 to the side of the display 10. The display 10 on the upper side of the controller 3 is electrically connected to the controller 3 and can display the equipment operating parameters in real time. When the heating element 13 is working, the display 10 dynamically displays information such as the current temperature, target temperature, and working mode. Users can intuitively understand the equipment status without using voice commands. The control buttons 11 on the side of the display 10 serve as the manual operation entry point. Users can directly set the temperature, switch working modes, or start and stop the heating function through the buttons. These button signals are transmitted to the controller 3 through the wire 7. The controller 3 then parses the signals and executes the corresponding commands, providing an alternative operation method for users who are not familiar with voice interaction and improving the compatibility and convenience of human-machine interaction.
[0030] The working principle and usage process of this utility model are as follows: When in use, the cup is placed on the holding plate 5. The heating element 13 at the bottom of the holding plate 5, upon receiving a command from the controller 3, is powered on and heats up the bottom of the cup. The temperature sensor 16 inside the protective shell 14 monitors the heating temperature in real time and feeds the temperature signal back to the controller 3. The controller 3 dynamically adjusts the on / off state of the heating element 13 according to a preset program—pausing heating when the temperature is too high and continuing heating when the temperature is insufficient, thereby achieving precise constant temperature control and ensuring that the beverage remains at a suitable temperature. The core functions of the coaster body 1 revolve around intelligent voice control and precise heating protection. When the user issues a voice command, such as "start heating," "stop heating," or "heat to 50℃," the voice recognition module 2 at the front of the outer shell 4 quickly captures the voice signal and transmits it to the controller. The signal is converted into an electrical signal and transmitted to the controller 3. After the controller 3 interprets the command, it controls the start and stop of the heating function or adjusts the heating temperature. At the same time, the weighing sensor 18 between the holding plate 5 and the outer shell 4 plays a key role: when the cup is first placed on the holding plate 5, the sensor detects its weight and transmits the data to the controller 3. The controller 3 stores the weight data as an initial reference value. In subsequent use, as the water in the cup is consumed, the weight will change. The weighing sensor 18 monitors in real time and transmits the weight data again. The controller 3 compares the new data with the initial reference value and calculates the remaining water in the cup. When the water level is lower than the set threshold, such as when an empty cup is detected or there is no cup on the holding plate 5, the controller 3 automatically cuts off the power to the heating element 13 to avoid heating with an empty cup or heating without a load, ensuring safe use and energy saving.
[0031] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A constant temperature heating coaster, comprising a coaster body (1); characterized in that: The coaster body (1) consists of an outer shell (4) and a holding plate (5). A protective shell (14) is installed at the bottom of the holding plate (5). The bottom of the protective shell (14) extends into the interior of the outer shell (4). A weighing sensor (18) is installed between the bottom of the protective shell (14) and the interior of the outer shell (4). A controller (3) is installed at the front end of the outer shell (4). A voice recognition module (2) is installed on the other side of the front end of the outer shell (4). A heating element (13) is installed inside the bottom of the holding plate (5). A temperature sensor (16) is installed inside the protective shell (14). The temperature sensor (16), heating element (13), weighing sensor (18), and voice recognition module (2) are connected to the controller (3) via wires (7). A wire (7) is installed at one end of the controller (3). A conductive plug (9) is installed at the end of the wire (7).
2. The constant temperature heating coaster according to claim 1, characterized in that: A friction pad (17) is provided at the bottom of the outer shell (4), and the friction pad (17) is attached to the bottom of the outer shell (4) with adhesive.
3. The constant temperature heating coaster according to claim 1, characterized in that: An acrylic plate (12) is provided on the upper end of the holding plate (5). The acrylic plate (12) is attached to the upper side of the holding plate (5) with adhesive. A marking ring (6) is provided on the upper side of the acrylic plate (12).
4. A constant temperature heating coaster according to claim 1, characterized in that: A spring wire (8) is provided in the middle of the conductor (7), and the spring wire (8) and the conductor (7) are integrally formed.
5. A constant temperature heating coaster according to claim 1, characterized in that: The protective shell (14) is provided with a heat insulation plate (15) inside, and the heat insulation plate (15) is attached to the inside of the protective shell (14) by adhesive.
6. A constant temperature heating coaster according to claim 1, characterized in that: A display (10) is mounted on the upper side of the controller (3), and a control button (11) is mounted on the upper side of the controller (3) on one side of the display (10).