Intelligent food warming device
Patent Information
- Application Number
- PCT/CN2025/115046
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-25
- Filing Date
- 2025-08-15
- Publication Date
- 2026-10-01
Smart Images

Figure CN2025115046_01102026_PF_FP_ABST
Abstract
Description
A smart food warming device Technical Field
[0001] This application relates to the field of food warming boards, and more particularly to an intelligent food warming device. Background Technology
[0002] A food warmer is a small kitchen appliance that uses an electric heating element to heat or maintain the temperature of food placed on it. For example, when the room temperature is relatively low and the user needs to prepare several dishes that cannot be finished simultaneously, the food will quickly cool to room temperature after being served, affecting its taste and texture. A food warmer can keep the food warm, allowing people to enjoy their meals while eating.
[0003] Among them, Chinese utility model patent CN221180227U discloses an intelligent food warming device. Multiple spaced-apart, downward-protruding heat-insulating support blocks are provided on the bottom surface of the main body of the food warming board. These heat-insulating support blocks suspend the main body of the food warming board on the table, preventing it from burning the table. A heat dissipation channel is formed between the heat-insulating support blocks and the bottom surface of the main body of the food warming board, communicating with the outside. Simultaneously, a heat dissipation device is provided on the main body of the food warming board to increase the airflow velocity within the heat dissipation channel, thereby reducing the temperature at the bottom of the main body. This heat dissipation device increases the airflow velocity within the heat dissipation channel, reducing the temperature at the bottom of the main body. Thus, even if the temperature of the upper surface of the main body of the food warming board increases, it will not burn the table, enabling the food warming board to heat the food.
[0004] However, the problem with this type of food warmer is that the warmer itself has a certain thickness and a limited effective heating area. At the same time, the area of the dining table is also limited. As a result, the warmer can only hold a certain number of plates, and the remaining plates containing food can only be placed on the table outside the warmer. The effective utilization area is low. In addition, in order to keep the plates on the warmer warm or heat them at the same time, the heating element of the warmer is always in working condition, and the power is relatively high, which leaves room for improvement. Summary of the Invention
[0005] To facilitate the keeping or heating of dishes, this application provides an intelligent food warming device.
[0006] The intelligent food warming device provided in this application adopts the following technical solution:
[0007] A smart food warming device includes a main controller and multiple sub-food warming plates. The main controller is provided with a power interface and multiple working interfaces, the same number as the multiple food warming plates. The power interface is used to connect an external power source to power the main controller. Multiple connecting lines are provided between the multiple working interfaces and the multiple sub-food warming plates. The main controller is electrically connected to a corresponding sub-food warming plate and a corresponding working interface through at least one of the multiple connecting lines. The multiple connecting lines are detachably connected to the multiple working interfaces. The main controller is used to adjust the working status of the multiple sub-food warming plates.
[0008] By adopting the above technical solution, the main controller is equipped with a power interface, which supplies power to the main controller. The main controller also has several working interfaces, and the number of sub-warming plates matches the number of working interfaces. The main controller and the sub-warming plates are connected via connecting cables. Users can freely control the number of sub-warming plates connected to the main controller according to their needs. Sub-warming plates only work when connected to the main controller via connecting cables; those not connected are in a non-working state. This positively contributes to reducing the overall energy consumption of the food warming device. Furthermore, the placement of the sub-warming plates along the table can be adjusted freely, improving the space utilization of the table and not affecting the heating or heat preservation effect of the plates placed on the sub-warming plates, thus positively contributing to improving the heating or heat preservation effect of the dishes.
[0009] Preferably, each of the plurality of sub-warming plates includes a base, and the base has a receiving groove for receiving the corresponding connecting wire among the plurality of connecting wires.
[0010] By adopting the above technical solution, when the sub-warming cutting board does not need to be connected to the main controller via a connecting cable, the connecting cable can be stored in the receiving slot, reducing the space occupied by the sub-warming cutting board, so as to facilitate the stacking and storage of several sub-warming cutting boards.
[0011] Preferably, each of the plurality of sub-warming plates further includes a placement section for placing plates.
[0012] By adopting the above technical solution, the design of the placement part helps to improve the stability of the plate when it is placed on the sub-warming cutting board, and at the same time helps to increase the contact area between the plate and the sub-warming cutting board, thereby helping to better conduct the heat emitted by the sub-warming cutting board to the plate.
[0013] Preferably, when the corresponding connecting line is located within the receiving groove, the sub-warming plate is used to place plates or as a mat.
[0014] By adopting the above technical solution, if the plate currently holding the food does not need to be kept warm or heated (e.g., for cold dishes), the cutting board can be used as a placemat, which is highly practical.
[0015] Preferably, each of the plurality of sub-warming plates is provided with a plug-in interface, and the end of a corresponding connecting line of the plurality of connecting lines away from the corresponding working interface of the plurality of working interfaces is plugged into the plug-in interface. A plug is provided on the plug-in interface, and the plug is used to seal the plug-in interface.
[0016] By adopting the above technical solution, the sub-warming plate is equipped with a plug interface. When the sub-warming plate is not in use, the connecting wire can be removed along the plug interface, and the plug interface can be sealed by plugging. The sub-warming plate can then be rinsed directly without any foreign objects entering the plug interface, making it easy to clean the sub-warming plate.
[0017] Preferably, the base is provided with a support structure.
[0018] By adopting the above technical solution, the base is equipped with a support structure, which helps to improve the heat dissipation capacity of the base and reduces the probability of damage to the dining table or the surface to be placed due to excessive temperature of the base.
[0019] Preferably, the main controller has a storage area for storing the plurality of connecting cables.
[0020] By adopting the above technical solution, the main controller has a storage area, which makes it easy to store the connecting cable directly inside the main controller, effectively reducing the probability of the connecting cable being lost due to inconvenience in storing the connecting cable.
[0021] Preferably, it also includes a mother warming plate, and the main controller is disposed on the mother warming plate.
[0022] By adopting the above technical solution, the main controller is integrated into the warming plate, so that plates can also be placed on the warming plate without affecting the normal operation of the main controller, thus further improving space utilization.
[0023] Preferably, the base and the placement part are connected by liquid silicone, and the upper surface of the base is provided with a wiring groove in the circumferential direction.
[0024] By adopting the above technical solution, the wiring troughs ensure that the wiring is evenly arranged and not easily confused.
[0025] In summary, this application includes at least one of the following beneficial technical effects:
[0026] 1. Users can freely control the number of sub-warming plates connected to the main controller according to their needs. The sub-warming plates can only work when they are connected to the main controller via a connecting cable. Sub-warming plates not connected to the main controller are in a non-working state. This plays a positive role in reducing the overall energy consumption of the food warming device. In addition, the placement of the sub-warming plates along the table can be adjusted at will, which is conducive to improving the space utilization of the table.
[0027] 2. When the sub-warming cutting board does not need to be connected to the main controller via a connecting cable, the connecting cable can be stored in the receiving slot, reducing the space occupied by the sub-warming cutting board, so that several sub-warming cutting boards can be stacked and stored together.
[0028] 3. The main controller is integrated into the warming plate, so that plates can also be placed on the warming plate without affecting the normal operation of the main controller, effectively improving space utilization. Attached Figure Description
[0029] Figure 1 is a schematic diagram of the sub-warming plate in an intelligent food warming device of this application.
[0030] Figure 2 is a schematic diagram of the structure of a portion of the sub-warming plates in an intelligent food warming device of this application, which are connected to the main controller via connecting wires.
[0031] Figure 3 is a schematic diagram of the structure of a smart food warming device according to this application, in which several sub-food warming boards are simultaneously connected to the main controller via connecting wires.
[0032] Figure 4 is a schematic diagram of the overall structure of another embodiment of the intelligent food warming device of this application.
[0033] Figure 5 is a schematic diagram of the assembly relationship between the base and the placement part in an intelligent food warming device of this application.
[0034] Explanation of reference numerals in the attached drawings: 1. Main controller; 11. Power interface; 12. Working interface; 2. Sub-warming plate; 21. Base; 211. Receiving slot; 212. Support structure; 22. Placement part; 23. Insertion interface; 3. Connecting wire; 4. Mother warming plate; 5. Wiring slot. Detailed Implementation
[0035] The present application will be further described in detail below with reference to Figures 1-5.
[0036] This application discloses an intelligent food warming device. Referring to Figures 1-3, the intelligent food warming device includes a main controller 1 and multiple sub-food warming plates 2. The main controller 1 is provided with a power interface 11 and multiple working interfaces 12, the same number as the multiple sub-food warming plates 2. The power interface 11 is used to connect an external power source to power the main controller 1. Multiple connecting lines 3 are correspondingly provided between the multiple working interfaces 12 and the multiple sub-food warming plates 2. The main controller 1 is electrically connected between a corresponding sub-food warming plate 2 and a corresponding working interface 12 through at least one of the multiple connecting lines 3. The multiple connecting lines 3 are detachably connected to the multiple working interfaces 12. The main controller 1 is used to adjust the working state of the multiple sub-food warming plates 2.
[0037] First, in this embodiment, the "main controller 1" can be a microcontroller unit (MCU), including a central processing unit (CPU), memory, and additional peripheral circuitry integrated on a single chip. Alternatively, it can be an existing controller used to adjust the operating power, time, power-on / off status, and locking mode of the food warming device, offering intelligent and convenient operation. The specific composition and working principle of the main controller 1 will not be elaborated here. Furthermore, the main controller 1 can be powered simply by connecting it to the household power grid (mains power) via the power interface 11 and connecting it with a wire, making operation easy.
[0038] Furthermore, referring to Figures 1 and 5, each sub-warming plate 2 includes a base 21, a placement part 22, and a heating element (not shown in the figures). The placement part 22 is used to place the plate, and it covers the base 21, enclosing the heating element between the base 21 and the placement part 22, thereby protecting the heating element and enabling it to work normally when powered on. Meanwhile, the base 21 and the placement part 22 can be integrally molded using liquid silicone, and the upper surface of the base 21 is circumferentially surrounded by wiring grooves 5.
[0039] Correspondingly, the heating element can be a heating wire or heating plate, etc., which are used to realize electrothermal conversion. Since the function of the food warming device in this application is to keep the food in the plate warm or heat it, its working limit temperature rise value is 130°C (International System of Units, degrees Celsius). It plays the same role in this embodiment, and the specific type of heating element is not limited or described here.
[0040] It should also be noted that the shapes of the main controller 1 and the sub-warming plate 2 can be flexibly changed according to usage requirements (such as round, rectangular, rhomboid or other irregular shapes, etc.), and their specific shapes are not limited here.
[0041] Meanwhile, the base 21 has a receiving groove 211, which is used to abut against the dining table (or other placement surface) so that the sub-warming plate 2 can be stably placed on the dining table. The receiving groove 211 is used to store the connecting wire 3. The receiving groove 211 is formed by the base 21 being recessed along the thickness direction. When the connecting wire 3 is located in the receiving groove 211, the connecting wire 3 is snapped in place by the receiving groove 211. Thus, when the sub-warming plate 2 does not need to be connected to the main controller 1 through the connecting wire 3, the connecting wire 3 can be stored through the receiving groove 211, reducing the space occupied by the sub-warming plate 2, so that several sub-warming plates 2 can be stacked and stored together.
[0042] Furthermore, a protective ring (not shown in the figure) is provided at the edge of the placement part 22. The protective ring is used to contain liquid. When the plate is placed on the placement part 22, the liquid that spills along the plate is blocked by the protective ring and stored on the placement part 22, so as not to spill onto the table, thus improving the overall cleanliness.
[0043] It should be mentioned here that the placement part 22 can be made of silicone. The silicone material has the characteristics of temperature resistance and stable physical and chemical properties, so that the plates will not make any noise when placed on the placement part 22, and the placement part 22 is easy to clean.
[0044] Meanwhile, when the connecting line 3 is located in the receiving groove 211, the sub-warming cutting board 2 is used to place plates or as a mat. If the plate currently holding the food does not need to be kept warm or heated (e.g., cold dishes), the sub-warming cutting board 2 can be used as a placemat, which is highly practical.
[0045] In another embodiment, the sub-warming cutting board 2 is provided with an interface 23. The end of the connecting wire 3 away from the working interface 12 is connected to the interface 23. A plug (not shown in the figure) is provided on the interface 23 to seal the interface 23. Since the sub-warming cutting board 2 is provided with an interface 23, when the sub-warming cutting board 2 is not in use, the connecting wire 3 can be removed along the interface 23 and the interface 23 can be sealed by the plug, so that the sub-warming cutting board 2 can be directly rinsed without foreign objects entering the interface 23, which facilitates the cleaning of the sub-warming cutting board 2.
[0046] In addition, the base 21 is provided with a support structure 212, which is composed of several protruding ridges formed along the base 21. Because the base 21 is provided with a support structure 212, it is beneficial to improve the heat dissipation capacity of the base 21 and reduce the probability of damage to the dining table or the table surface caused by the base being too hot.
[0047] Meanwhile, after the insertion port 23 is sealed by plugging, the placement part 22 of the sub-warming cutting board 2 can also be used as a bone plate. After use, the sub-warming cutting board 2 can be cleaned.
[0048] Meanwhile, a storage area (not shown in the figure) is provided on the main controller 1. The storage area is used to store the connecting cable 3. The storage area can be formed by recessing from the side wall of the main controller 1 toward the geometric center of the main controller 1, which improves the convenience of storing the connecting cable 3.
[0049] In another embodiment, referring to FIG4, a mother warming plate 4 is also included, and a main controller 1 is disposed on the mother warming plate 4. The components of the mother warming plate 4 and the child warming plate 2 are the same, and will not be described in detail here. By integrating the main controller 1 onto the mother warming plate 4, plates (such as soup bowls or soup pots) can also be placed on the mother warming plate 4, while the child warming plate 2 is used to place plates, forming a shape where the plates are located around the soup pot, which is more aesthetically pleasing and does not affect the normal operation of the main controller 1, effectively improving space utilization.
[0050] The implementation principle of an intelligent food warming device according to an embodiment of this application is as follows: The main controller 1 is equipped with a power interface 11, which supplies power to the main controller 1. Simultaneously, the main controller 1 has several working interfaces 12, and the number of sub-food warming plates 2 is matched with the number of working interfaces 12. The main controller 1 and the sub-food warming plates 2 are connected via a connecting cable 3. Users can freely control the number of sub-food warming plates 2 connected to the main controller 1 according to their needs. Only when a sub-food warming plate 2 is connected to the main controller 1 via the connecting cable 3 can the sub-food warming plate 2 work. Sub-food warming plates 2 not connected to the main controller 1 are in a non-working state. This positively guides the reduction of the overall energy consumption of the food warming device. Furthermore, the placement of the sub-food warming plates 2 along the table can be adjusted freely, which is beneficial for improving the space utilization of the table and will not affect the heating or heat preservation effect of the plates placed on the sub-food warming plates 2, thus positively guiding the improvement of the heating or heat preservation effect of the dishes.
[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A smart food warming device, characterized in that: The system includes a main controller (1) and multiple sub-warming plates (2). The main controller (1) is provided with a power interface (11) and multiple working interfaces (12) in the same number as the multiple sub-warming plates (2). The power interface (11) is used to connect an external power source to power the main controller (1). Multiple working interfaces (12) are connected to the multiple sub-warming plates (2) by multiple connecting lines (3). The main controller (1) is electrically connected to the corresponding sub-warming plate (2) and the corresponding working interface (12) through at least one of the multiple connecting lines (3). The multiple connecting lines (3) are detachably connected to the multiple working interfaces (12). The main controller (1) is used to adjust the working status of the multiple sub-warming plates (2).
2. The intelligent food warming device according to claim 1, characterized in that: Each of the multiple sub-warming plates (2) includes a base (21), and the base (21) has a receiving groove (211) for receiving the multiple connecting wires (3).
3. The intelligent food warming device according to claim 1, characterized in that: Each of the multiple sub-warming plates (2) also includes a placement section (22) for placing plates.
4. The intelligent food warming device according to claim 2, characterized in that: When the corresponding connecting line (3) is located in the receiving groove (211), the sub-warming plate (2) is used to place the plate or as a mat.
5. The intelligent food warming device according to claim 1, characterized in that: Each of the multiple sub-warming plates (2) is provided with a plug-in interface (23). The end of the corresponding connecting line (3) of the multiple connecting lines (3) away from the corresponding working interface (12) of the multiple working interfaces (12) is plugged into the plug-in interface (23). The plug-in interface (23) is provided with a plug for sealing the plug-in interface (23).
6. The intelligent food warming device according to claim 2, characterized in that: A support structure (212) is provided on the base (21).
7. The intelligent food warming device according to claim 1, characterized in that: The main controller (1) has a storage area for storing the multiple connecting wires (3).
8. The intelligent food warming device according to claim 1, characterized in that: It also includes a mother warming plate (4), and the main controller (1) is disposed on the mother warming plate (4).
9. The intelligent food warming device according to claim 1, characterized in that: Each of the multiple sub-warming plates (2) includes a base (21) and a placement part (22) connected by liquid silicone, and the upper surface of the base (21) is provided with a wiring groove (5) in the circumferential direction.