Meal bag with heating function
By incorporating insulation, heat insulation, and an electric heating system into the bread rolls, the problem of food temperature loss is solved, providing convenient heating functions and temperature monitoring to ensure the food's taste.
Patent Information
- Application Number
- CN202520266503.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing meal packs require external tools to reheat after the food loses its temperature, which is inconvenient.
Design a dinner bag with an insulation layer, a heat insulation layer, and a reinforcement layer. It has a built-in battery, controller, and electric heating wire. It heats the food by heating water vapor and is equipped with a temperature sensor and display screen to monitor the temperature in real time.
It enables a convenient food heating process, improves heat preservation and insulation, ensures food taste, and avoids overheating or underheating.
Smart Images

Figure CN223667448U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a lunch bag technical field, especially in lunch bag with heating function. BACKGROUND
[0002] Lunch bag is a common food packaging form, usually used for packing breakfast, lunch or dinner, convenient for people to carry and eat. It can be a simple paper bag or box, or a complex layered container, lunch bag can contain a variety of food, such as sandwiches, hamburgers, rice balls, sushi rolls, etc. After processing and packaging, these foods become meal products that are convenient for consumers to eat or carry directly. When using lunch bag, since the food is placed in the lunch bag, the temperature is lost, and when eating the food again, the taste of the food is not good, so users usually use a microwave oven or place it on a steamer to heat it, which is very inconvenient. Therefore, we provide a lunch bag with heating function. SUMMARY
[0003] In order to solve the above problems, the utility model provides a lunch bag with heating function to solve the problems in the background art.
[0004] The lunch bag with heating function in the utility model, including lunch bag main part, the inner wall of lunch bag main part is equipped with heat preservation layer, one side of heat preservation layer is equipped with heat insulation layer, one side of heat insulation layer is equipped with reinforcing layer, the upper end of lunch bag main part is movably equipped with upper cover, the upper end of upper cover is equipped with handle, the inside center top of upper cover is equipped with temperature sensor, the lower end of lunch bag main part is screwedly connected with base, the base is internally provided with cavity, the cavity is equipped with battery and controller, the upper end of cavity is equipped with water storage tank, the water storage tank is equipped with electric heating wire, the lunch bag main part is internally provided with through hole, the through hole is communicated with water storage tank.
[0005] In the above scheme, the heat insulation layer is arranged between the heat preservation layer and the reinforcing layer, and the heat insulation layer is made of vacuum material.
[0006] In the above scheme, the handle is externally sleeved with a rubber anti-skid sleeve.
[0007] In the above scheme, the upper end of the upper cover is communicated with a vent hole on one side, and the vent hole is provided with a cover plate on the upper end.
[0008] In the above scheme, the upper end of the upper cover is provided with a display screen connected to the temperature sensor.
[0009] In the above scheme, the base is provided with a charging port on the outside, the charging port is connected to the battery, and the base is provided with a rotary knob on the outside.
[0010] In the above scheme, the base is provided with a suction cup at the lower end.
[0011] The utility model discloses a kind of lunch bags with heating function, through base, battery, knob, controller, water storage tank and electric heating wire, user can complete the heating of food in lunch bag with water, bring the heating of food Convenient;Through heat-insulating layer and reinforcing layer, its heat-insulating effect can be effectively improved, heat loss is prevented while heat insulation;Through air hole, cover, temperature sensor and display screen, it is convenient for user to observe the food heating condition in lunch bag main body in real time, guarantee the heating effect of food. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, for ordinary skilled person in the art, on the premise of not paying the creativity labor intensity, other drawings can also be obtained according to these drawings.
[0013] Fig. 1 It is the structural schematic diagram of the utility model.
[0014] Fig. 2 It is the internal structure schematic diagram of the utility model.
[0015] Fig. 3 It is the heat-insulating layer structure schematic diagram of the utility model.
[0016] In the drawing: 1, lunch bag main body 11, heat-insulating layer 12, heat-insulating layer 13, reinforcing layer 15, through hole 2, upper cover 21, air hole 22, cover 23, handle 24, rubber antiskid sleeve 25, temperature sensor 26, display screen 3, base 31, charging port 32, knob 33, battery 34, controller 35, suction cup 36, electric heating wire 37, cavity 38, water storage tank. DETAILED DESCRIPTION
[0017] The specific implementation of the utility model is further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.
[0018] As Figs. 1-3The utility model discloses a meal bag with heating function, including meal bag main body 1, the inner wall of meal bag main body 1 is equipped with heat preservation layer 11, one side of heat preservation layer 11 is equipped with heat insulation layer 12, one side of heat insulation layer 12 is equipped with reinforcing layer 13, heat insulation layer 12 sets up between heat preservation layer 11 and reinforcing layer 13, heat insulation layer 12 is made of vacuum material, by the cooperation of heat preservation layer 11 and heat insulation layer 12 that are arranged in the inner wall of meal bag main body 1, the heat preservation and heat insulation effect can be effectively improved, heat loss is prevented while heat insulation, and the internal structure strength can be effectively increased by the arrangement of reinforcing layer 13, so that damage caused by collision and extrusion is prevented.
[0019] The upper end of the meal bag main body 1 is movably provided with an upper cover 2, the upper end of the upper cover 2 is provided with a handle 23, the inner center top of the upper cover 2 is provided with a temperature sensor 25, and the upper cover 2 can be opened from the upper end of the meal bag main body 1 by rotating upward, so that the food to be carried can be taken out or placed. When the food is heated, the upper cover 2 is closed to the upper end of the meal bag main body 1, and the temperature sensor 25 can sense the temperature inside the meal bag main body 1. The upper end of the upper cover 2 is provided with a display screen 26 connected with the temperature sensor 25, and the temperature signal detected by the temperature sensor 25 is transmitted to the position of the display screen 26. The temperature is displayed through the display screen 26, and the user can observe the temperature of the meal bag main body 1 in real time when it is heated, so as to better master the heating condition of the food and avoid over-heating or insufficient heating, which affects the taste of the food.
[0020] The lower end of the meal bag main body 1 is threadedly connected with a base 3, the base 3 is provided with a cavity 37, the cavity 37 is provided with a storage battery 33 and a controller 34, the upper end of the cavity 37 is provided with a water storage tank 38, the water storage tank 38 is provided with an electric heating wire 36, the meal bag main body 1 is provided with a through hole 15, the through hole 15 is communicated with the water storage tank 38, when the food inside the meal bag main body 1 needs to be heated, the base 3 is threadedly rotated and taken off from the lower end of the meal bag main body 1, at this time, the water storage tank 38 at the upper end of the cavity 37 is in an open state, water is injected into the water storage tank 38, and the base 3 is threadedly installed at the lower end of the meal bag main body 1 again, the outer side of the base 3 is provided with a knob 32, the knob 32 on the side of the base 3 can control the temperature rising of the electric heating wire 36 through the controller 34, by rotating the knob 32, the controller 34 controls the storage battery 33 to make the electric heating wire 36 start to supply power and heat, after the electric heating wire 36 is heated, the water in the water storage tank 38 is heated, after the water is heated, hot steam is generated, the steam enters the inner wall of the meal bag main body 1 through the through hole 15, and the food is heated, which can avoid the user from heating the food in the meal bag when there is no microwave oven or the like heating tool, and ensure the safety and taste of the food.
[0021] In the above scheme, the handle 23 is externally sleeved with a rubber anti-skid sleeve 24, and the rubber anti-skid sleeve 24 can prevent the lunch box body 1 from slipping from the hand and causing food to fall off.
[0022] In the above scheme, the upper end of the upper cover 2 is provided with a ventilation hole 21 on one side, and a cover plate 22 is arranged at the upper end of the ventilation hole 21. When the food is heated, the cover plate 22 of the ventilation hole 21 is opened, the water vapor in the inside is led out from the lunch box body 1, the ventilation of the water vapor in the lunch box is ensured, and the heating effect of the food is ensured.
[0023] In the above scheme, the base 3 is externally provided with a charging port 31, and the charging port 31 is connected with a storage battery 33. The charging port 31 is connected with an external charger, and the storage battery 33 is charged.
[0024] In the above scheme, the base 3 is externally provided with a charging port 31, and the charging port 31 is connected with a storage battery 33. The charging port 31 is connected with an external charger, and the storage battery 33 is charged.
[0025] Working principle:
[0026] The lunch box with the heating function can effectively improve the heat preservation and insulation effect by cooperating the heat preservation layer 11 and the heat insulation layer 12 arranged on the inner wall of the lunch box body 1. The heat insulation and the prevention of heat loss are realized. The reinforcing layer 13 is arranged, the internal structural strength is effectively increased, and the lunch box body 1 is prevented from being damaged due to collision and extrusion. When the food in the lunch box body 1 needs to be heated, the base 3 is screwed and removed from the lower end of the lunch box body 1. At this time, the water storage groove 38 at the upper end of the cavity 37 is in an open state. Water is injected into the water storage groove 38. The rotating knob 32 is rotated, the controller 34 controls the storage battery 33 to start power supply and heating of the electric heating wire 36. After the electric heating wire 36 is heated, the water is heated, and hot water vapor is generated. The water vapor enters the inner wall of the lunch box body 1 through the through hole 15, and the food is heated. The temperature signal detected by the temperature sensor 25 is transmitted to the display screen 26. The temperature is displayed on the display screen 26. The user can observe the temperature of the lunch box body 1 in real time, and can better master the heating condition of the food.
[0027] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A lunch bag with a heating function, comprising a lunch bag main body (1), characterized in that, The inner wall of the meal bag body (1) is provided with a heat preservation layer (11), one side of the heat preservation layer (11) is provided with a heat insulation layer (12), one side of the heat insulation layer (12) is provided with a reinforcing layer (13), the upper end of the meal bag body (1) is movably provided with an upper cover (2), the upper end of the upper cover (2) is provided with a handle (23), the inner center top of the upper cover (2) is provided with a temperature sensor (25), the lower end of the meal bag body (1) is threadedly connected with a base (3), the base (3) is internally provided with a cavity (37), the cavity (37) is internally provided with a storage battery (33) and a controller (34), the upper end of the cavity (37) is provided with a water storage tank (38), the water storage tank (38) is internally provided with an electric heating wire (36), the meal bag body (1) is internally provided with a through hole (15), and the through hole (15) is communicated with the water storage tank (38).
2. The lunch bag with a heating function according to claim 1, wherein The heat insulation layer (12) is arranged between the heat preservation layer (11) and the reinforcing layer (13), and the heat insulation layer (12) is made of vacuum material.
3. The lunch bag with a heating function according to claim 1, wherein The handle (23) is externally sleeved with a rubber anti-skid sleeve (24).
4. The lunch bag with a heating function according to claim 1, wherein The upper end of the upper cover (2) is communicated with a vent hole (21) on one side, and the upper end of the vent hole (21) is provided with a cover plate (22).
5. The lunch bag with a heating function according to claim 1, wherein The upper end of the upper cover (2) is provided with a display screen (26) connected with the temperature sensor (25).
6. The lunch bag with a heating function according to claim 1, wherein The outer side of the base (3) is provided with a charging port (31), the charging port (31) is connected with the storage battery (33), and the outer side of the base (3) is provided with a knob (32).
7. The lunch bag with a heating function according to claim 1, wherein The lower end of the base (3) is provided with a suction cup (35).