Wireless charging heating lunch box

By designing a wireless charging heated lunch box, which uses graphene five-sided heating elements and a multi-functional design, the problems of inconvenient and uneven heating of traditional lunch boxes and unreasonable tableware storage are solved, achieving convenient and efficient food heating and hygienic tableware storage.

CN223994491UActive Publication Date: 2026-03-17SHENZHEN JINGXIN HARDWARE ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Traditional lunch boxes have limited functionality, cannot meet the food temperature requirements in different scenarios, are inconvenient and uneven in heating, have inefficient tableware storage, and are limited in their usage scenarios.

Method used

Design a wireless charging and heating lunch box, which adopts a multi-functional lid, outer box, display and power supply module, lunch box body and five-sided heating module, including graphene five-sided heating sheet, has wireless and wired charging functions, and provides uniform heating and tableware storage.

Benefits of technology

It enables convenient and efficient food heating, ensures even heating of food, provides hygienic tableware storage, expands usage scenarios, and meets a variety of needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a wireless charging heating lunch box, which relates to the technical field of lunch boxes and comprises a multifunctional cover body, an outer box body, a display power supply module, a lunch box body, a fixed frame body and a five-surface heating module, the lunch box has the advantages of being reasonable and simple in structure, low in production cost and convenient to install, the lunch box body can be conveniently taken and placed for food filling through the design of the multifunctional cover body, the containing groove is further formed for containing tableware, and use is convenient and sanitary; the lunch box has a wireless charging function and a wired charging function, flexible selection can be achieved according to use scenes, the electric quantity of a battery can be visually checked through the display power supply module, normal power supply of the lunch box is guaranteed, and heating time can be reserved in advance; according to the utility model, the five-surface heating module is adopted, and the graphene five-surface heating sheet is used for comprehensively heating the heat-conducting inner container, so that the lunch box body placed in the heat-conducting inner container is uniformly heated, food can be uniformly heated, and the heating effect and the taste of the food are improved.
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Description

Technical Field

[0001] This utility model relates to the field of lunch box technology, and in particular to a wireless charging and heating lunch box. Background Technology

[0002] In daily life, people's needs for lunchboxes are becoming increasingly diverse. Traditional lunchboxes have a relatively simple function, only capable of holding food and unable to meet people's requirements for food temperature in different situations. For example, for people who frequently travel for work, study, or leisure, it is difficult to ensure that they can eat warm meals without heating equipment such as microwave ovens. This not only affects the dining experience, but long-term consumption of cold food may also have adverse effects on health.

[0003] With the continuous advancement of technology and the accelerating pace of life, lunch boxes with heating functions have emerged. However, early heated lunch boxes mostly had many limitations. Some heated lunch boxes used corded power supply, requiring users to find a power outlet, which was extremely inconvenient outdoors or in places with limited power, greatly limiting their usage scenarios. Moreover, the heating method of traditional heated lunch boxes was often uneven, easily resulting in localized overheating or underheating of food, affecting the taste and nutritional content of the food.

[0004] Furthermore, in terms of tableware storage, ordinary lunch boxes lack dedicated space, and storing tableware and food together is not only unhygienic but also prone to loss or damage to the internal structure of the lunch box during transport. To address these issues and meet people's demand for convenient, efficient, and fully functional lunch boxes, the development of a new type of wireless charging and heating lunch box is urgently needed. Utility Model Content

[0005] The purpose of this utility model is to provide a wireless charging and heating lunch box to solve the above-mentioned problems, which solves the problems of traditional lunch boxes having single function, inconvenient heating, uneven heating, and unreasonable tableware storage.

[0006] To address the aforementioned problems, this utility model provides a technical solution: a wireless charging and heating lunch box, comprising a multifunctional lid, an outer box, a display and power supply module, a lunch box body, a fixed frame, and a five-sided heating module; the display and power supply module is located on the lower side of the inner side of the outer box; the five-sided heating module is fixedly connected to the inside of the outer box body through the fixed frame, and the five-sided heating module is electrically connected to the display and power supply module; the outer side of the lunch box body is located inside the upper side of the five-sided heating module; the multifunctional lid is connected to the upper side of the fixed frame.

[0007] Preferably, the multifunctional cover includes a top cover, a placement groove, a handle, a lid, and a retaining ring; the top cover has a placement groove on one side, and a lid is provided on the upper side of the placement groove; the lower side of the handle is movably connected to the upper center of both sides of the top cover; there are two retaining rings, which are movably connected to the lower center of both sides of the top cover, and the lower sides of the two retaining rings are respectively connected to the protrusions provided in the center of both sides of the fixed frame.

[0008] Preferably, a handle slot is provided on the other side edge of the top cover.

[0009] Preferably, the specific structure of the display power supply module includes a transparent protective plate, a connecting plate, a display screen, a battery, a battery cover, a circuit board, and a charging module; the connecting plate is fixedly connected to the central opening on the front side of the outer casing, the transparent protective plate is fixedly connected to the outer side of the central opening of the connecting plate, and the display screen is fixedly connected to the inner side of the central opening of the connecting plate; the battery is fixedly connected to the inner center of the lower side of the outer casing through the battery cover; the circuit board is fixedly connected to the lower rear side inside the outer casing, the power supply terminal of the circuit board is electrically connected to the battery, a charging module is provided on the rear side of the circuit board, and the output terminal of the circuit board is electrically connected to the five-sided heating module.

[0010] Preferably, the charging module is a wireless or wired charging module.

[0011] Preferably, the specific structure of the five-sided heating module includes a heat-conducting inner liner, five-sided heating elements, and a heat-insulating box; the heat-insulating box is fixedly connected to the outside of the outer box via a fixed frame, the heat-conducting inner liner is fixedly connected inside the heat-insulating box, and the five-sided heating elements are fixedly connected to the outer surface of the heat-conducting inner liner.

[0012] Preferably, the five-sided heating element is a graphene five-sided heating element.

[0013] The beneficial effects of this utility model are: (1) This utility model has the characteristics of reasonable and simple structure, low production cost and convenient installation. The multi-functional cover design makes it convenient to take out and place the lunch box for food filling. It also has a placement slot for storing tableware, which is convenient and hygienic to use.

[0014] (2) This utility model has both wireless and wired charging functions, which can be flexibly selected according to the usage scenario. The battery power can be viewed intuitively through the power supply module, ensuring the normal power supply of the lunch box.

[0015] (3) The present invention uses a five-sided heating module, which uses graphene five-sided heating sheets to heat the heat-conducting inner liner in a comprehensive manner, so that the lunch box body placed inside is heated evenly, ensuring that the food is heated evenly, improving the heating effect and the taste of the food.

[0016] (4) When carrying this utility model, it can be easily lifted by the handle on the cover. When not using the handle, it can be stored in the slot of the top cover to avoid shaking and affecting carrying. The overall functions are complete and meet a variety of usage needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 for Figure 1 Exploded view.

[0019] Figure 3 This is a schematic diagram of the structure of a multifunctional cover.

[0020] Figure 4 This is a schematic diagram of the power supply module.

[0021] Figure 5 This is a schematic diagram of the five-sided heating module.

[0022] 1-Multifunctional lid; 2-Outer box; 3-Display power supply module; 4-Lunch box body; 5-Fixing frame; 6-Five-sided heating module; 11-Top cover; 12-Placement slot; 13-Handle; 14-Lid; 15-Fixing ring; 31-Transparent protective plate; 32-Connecting plate; 33-Display screen; 34-Battery; 35-Battery cover; 36-Circuit board; 37-Charging module; 61-Heat-conducting inner liner; 62-Five-sided heating element; 63-Insulated box body. Detailed Implementation

[0023] like Figure 1 and Figure 2 As shown, this specific embodiment adopts the following technical solution: a wireless charging heated lunch box, including a multi-functional lid 1, an outer box 2, a display and power supply module 3, a lunch box body 4, a fixed frame 5, and a five-sided heating module 6; the display and power supply module 3 is provided on the lower inner side of the outer box body 2; the five-sided heating module 6 is fixedly connected to the inside of the outer box body 2 through the fixed frame 5, and the five-sided heating module 6 is electrically connected to the display and power supply module 3; the outside of the lunch box body 4 is located inside the upper side of the five-sided heating module 6; the multi-functional lid 1 is connected to the upper side of the fixed frame 5.

[0024] like Figure 3 As shown, the specific structure of the multifunctional cover 1 includes a top cover 11, a placement groove 12, a handle 13, a lid 14, and a fixing ring 15; the top cover 11 has a placement groove 12 on one side, and a lid 14 is provided on the upper side of the placement groove 12; the handle 13 is movably connected to the upper center of both sides of the top cover 11; there are two fixing rings 15, which are movably connected to the lower center of both sides of the top cover 11, and the lower interior of the two fixing rings 15 are respectively connected to the protrusions provided in the center of both sides of the fixing frame 5.

[0025] The top cover 11 has a slot for a handle 13 on the other side edge.

[0026] like Figure 4 As shown, the specific structure of the display power supply module 3 includes a transparent protective plate 31, a connecting plate 32, a display screen 33, a battery 34, a battery cover 35, a circuit board 36, and a charging module 37. The connecting plate 32 is fixedly connected to the central opening on the front side of the outer box 2. The transparent protective plate 31 is fixedly connected to the outer side of the central opening of the connecting plate 32, and the display screen 33 is fixedly connected to the inner side of the central opening of the connecting plate 32. The battery 34 is fixedly connected to the lower center of the outer box 2 through the battery cover 35. The circuit board 36 is fixedly connected to the lower rear side inside the outer box 2. The power supply terminal of the circuit board 36 is electrically connected to the battery 34. The charging module 37 is provided on the rear side of the circuit board 36, and the output terminal of the circuit board 36 is electrically connected to the five-sided heating module 6.

[0027] The charging module 37 is a wireless and wired charging module.

[0028] like Figure 5 As shown, the specific structure of the five-sided heating module 6 includes a heat-conducting inner liner 61, five-sided heating elements 62, and a heat-insulating box 63. The heat-insulating box 63 is fixedly connected to the outside of the outer box 2 via a fixing frame 5. The heat-conducting inner liner 61 is fixedly connected inside the heat-insulating box 63, and the five-sided heating elements 62 are fixedly connected to the outer surface of the heat-conducting inner liner 61.

[0029] The five-sided heating element 62 is a graphene five-sided heating element.

[0030] The usage state of this utility model is as follows: This utility model has a reasonable and simple structure, low production cost, convenient installation, and complete functions. When using it, first pick up the multi-functional cover 1, and easily lift the top cover 11 through the handle 13 to remove the lunch box 4 from the upper side of the fixed frame 5. At this time, food can be filled in, and the power supply module 3 can be observed. The transparent protective plate 31 protects the display screen 33, and the battery 34 power status can be checked. If the power is low, the outer box 2 can be placed on the wireless charging pad to charge it using the wireless charging function of the charging module 37; alternatively, the wired charging function of the charging module 37 can be used by connecting the charging cable. The battery 34 is installed inside the lower center of the outer box 2 fixed by the battery cover 35 to power the entire lunch box. Then, The food-filled lunchbox body 4 is placed back into the outer box body 2. At this time, the lunchbox body 4 is located inside the upper side of the five-sided heating module 6. During heating, the fixing ring 15 of the multi-functional lid 1 connects with the protrusions set in the center of both sides of the fixing frame 5, firmly connecting the multi-functional lid 1 to the upper side of the fixing frame 5. The display power supply module 3 is activated. After receiving the instruction, the circuit board 36 transmits the power of the battery 34 to the five-sided heating module 6. The heat insulation box 63 of the five-sided heating module 6 is fixed inside the outer box body 2. The five-sided heating plate 62 (graphene five-sided heating plate) on the outside of the heat-conducting inner liner 61 inside it starts to work, heating the heat-conducting inner liner 61 comprehensively, and then heating the lunchbox body 4 placed inside the heat-conducting inner liner 61 from all five sides, ensuring that the food can be heated evenly. If you need to carry it, you can easily lift the lunchbox using the handle 13 on the multi-functional lid 1. If you need to use the utensils or other items placed in the slot 12, you can open the lid 14 to take them out. When you are not using the handle 13, you can place it in the slot on the other side edge of the top cover 11 to prevent the handle from shaking and affecting carrying.

[0031] The control method of this utility model is either manual start-up or control through existing automation technology. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0032] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are 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.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A wireless charging heating lunch box, characterized in that: Including multifunctional cover (1), outer box (2), display power module (3), lunch box (4), fixed frame (5) and five heating module (6); The lower side of the outer box (2) is provided with a display power module (3); The five heating module (6) is fixedly connected inside the outer box (2) through the fixed frame (5), and the five heating module (6) is electrically connected with the display power module (3); The lunch box (4) is located inside the upper side of the five heating module (6); The multifunctional cover (1) is connected with the upper side of the fixed frame (5); The specific structure of the display power module (3) includes a transparent guard plate (31), a connecting plate (32), a display screen (33), a battery (34), a battery cover (35), a circuit board (36) and a charging module (37); The connecting plate (32) is fixedly connected at the central opening of the front side of the outer box (2), the outer side of the central opening of the connecting plate (32) is fixedly connected with the transparent guard plate (31), and the inner side of the central opening of the connecting plate (32) is fixedly connected with the display screen (33); The battery (34) is fixedly connected inside the central lower side of the outer box (2) through the battery cover (35); The circuit board (36) is fixedly connected to the inner rear lower side of the outer box (2), the power supply end of the circuit board (36) is electrically connected with the battery (34), the rear side of the circuit board (36) is provided with the charging module (37), and the output end of the circuit board (36) is electrically connected with the five heating module (6); The charging module (37) is a wireless and wired charging module.

2. The wireless charging heating bento box of claim 1, wherein: The specific structure of the multifunctional cover (1) includes a top cover (11), a placing groove (12), a handle (13), a cover (14) and a fixed clasp ring (15); The top cover (11) is provided with a placing groove (12) on one side of the upper surface, and the upper side of the placing groove (12) is provided with a cover (14); The lower side of the handle (13) is movably connected to the upper side of the central part of the two sides of the top cover (11); The fixed clasp ring (15) is two, and the two fixed clasp rings (15) are movably connected to the lower central part of the two sides of the top cover (11), respectively, and the inner sides of the two fixed clasp rings (15) are connected with the protrusions provided on the central part of the two sides of the fixed frame (5).

3. The wireless charging heating bento box of claim 2, wherein: The other side edge of the top cover (11) is provided with a clamping groove of the handle (13).

4. The wireless charging heating bento box of claim 1, wherein: The specific structure of the five heating module (6) includes a heat-conducting inner container (61), a five heating sheet (62) and a heat insulation box (63); The heat insulation box (63) is fixedly connected inside the outer box (2) through the fixed frame (5), the heat-conducting inner container (61) is fixedly connected inside the heat insulation box (63), and the five heating sheet (62) is fixedly connected to the outer side surface of the heat-conducting inner container (61).

5. The wireless charging heating bento box of claim 4, wherein: The five heating sheet (62) is a graphene five heating sheet.