Lunch box heating bag

Abstract

The lunch box heating bag comprises a box body and a box cover, an inner cavity of the box body is used for containing a lunch box, the top of the box body is open, and heating wires used for heating the lunch box are arranged at the bottom and on the side faces of the box body; the box cover is connected to the opening in the top of the box body in an openable and closable mode. The lunch box heating bag can uniformly heat the lunch box, the heating time is shortened, and the heating efficiency and the taste of meals are improved.

Description

Technical Field

[0001] This application relates to the technical field of daily necessities, and particularly relates to a lunch box heating bag. Background Art

[0002] In the related art, a lunch box is a box specifically used to hold meals. Generally, students or office workers, for the convenience of carrying, usually put the lunch box in a lunch box bag, which is not only portable but also can keep warm to a certain extent. However, the lunch box bag with a heat preservation function usually heats the lunch box at the bottom, which not only requires a long heating time, but also the temperature of the meals in the lunch box is not uniform, affecting the taste of the user when eating. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, this application provides a lunch box heating bag, which can uniformly heat the lunch box, reduce the heating time, and improve the heating efficiency and the taste of the meals.

[0004] The lunch box heating bag according to an embodiment of the utility model includes: a box body and a box cover. The inner cavity of the box body is used to place the lunch box. The top of the box body is open, and heating wires for heating the lunch box are provided at the bottom and the side; the box cover is detachably connected to the opening at the top of the box body.

[0005] The lunch box heating bag according to an embodiment of the utility model has at least the following beneficial effects: This lunch box heating bag includes a box body and a box cover. Heating wires are provided at both the bottom and the side of the box body, so that the lunch box located in the box body can be heated in multiple directions, making the meals in the lunch box heated more evenly and improving the taste when eating. The box cover is detachably connected to the opening at the top of the box body to realize the closing or opening of the box body; therefore, this lunch box heating bag can uniformly heat the lunch box, reduce the heating time, and improve the heating efficiency and the taste of the meals.

[0006] According to some embodiments of the utility model, it further includes a plug-in part and a temperature controller. The plug-in part is exposed on the side of the box body and is used to connect to the power supply. The temperature controller is electrically connected to the heating wire and the plug-in part respectively and is used to maintain a constant temperature inside the box body.

[0007] According to some embodiments of the utility model, it further includes an AC power cord and a DC power cord. The plug-in part includes an AC plug-in part and a DC plug-in part. The heating wire includes two groups arranged side by side, namely a first heating wire and a second heating wire. The AC plug-in part is electrically connected to the first heating wire, and the AC power cord is used to connect the AC plug-in part and the power supply. The DC plug-in part is electrically connected to the second heating wire, and the DC power cord is used to connect the DC plug-in part and the power supply.

[0008] According to some embodiments of the present utility model, a first side pocket and a second side pocket are respectively arranged outside the box body. The first side pocket is openably connected to the first side surface of the box body, and the insertion part is arranged between the first side surface and the first side pocket. The second side pocket is openably connected to the second side surface of the box body, and the space between the second side surface and the second side pocket is used to accommodate the AC power cord and the DC power cord.

[0009] According to some embodiments of the present utility model, the insertion part, the thermostat and the heating wire are all coated with a rubber layer.

[0010] According to some embodiments of the present utility model, it further includes a hanging rope. Hooks are arranged on two opposite sides outside the box body, and two ends of the hanging rope are detachably connected to the two hooks.

[0011] According to some embodiments of the present utility model, a partition net is arranged on the inner side of the box cover, and a receiving space is formed between the partition net and the inner side of the box cover for accommodating tableware.

[0012] According to some embodiments of the present utility model, the box body includes a support layer and an outer layer from the inside to the outside. The support layer forms the main body of the box body and is used to support the heating wire and the lunch box, and the heating wire is arranged inside the support layer.

[0013] According to some embodiments of the present utility model, it further includes a heat conduction layer. The heat conduction layer is arranged inside the support layer, and the heating wire is arranged between the heat conduction layer and the support layer. The heat conduction layer is used to transfer the heat generated by the heating wire to the inner cavity of the box body.

[0014] According to some embodiments of the present utility model, it further includes a heat insulation layer. The heat insulation layer is arranged inside the support layer, and the heating wire is arranged between the heat conduction layer and the heat insulation layer. The heat insulation layer is used to isolate the heat transfer between the heating wire and the support layer.

[0015] Some additional aspects and advantages of the present application will be given in the following description, some will become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following will further illustrate the present utility model in conjunction with the drawings and embodiments, where:

[0017] Figure 1 is a schematic diagram of the overall structure of one embodiment of the lunch box heating bag of the present utility model;

[0018] Figure 2 is Figure 1 a schematic diagram of the structure of the lunch box heating bag shown in

[0019] Figure 3 after removing the heat conduction layer and the non-woven fabric layer; Figure 1 is a schematic diagram of another perspective of the lunch box heating bag shown in

[0020] Figure 4 is Figure 1 The structural schematic diagram of the lunch box heating bag shown in [reference] after removing the first side bag;

[0021] Figure 5 is Figure 2 The partial enlarged view at position A in [reference];

[0022] Figure 6 is Figure 1 The layer structure schematic diagram of the box body in the lunch box heating bag shown in [reference].

[0023] Reference numerals:

[0024] Box body 100; First side bag 101; Second side bag 102; Hook 103; Outer layer 110; Support layer 120; Heat insulation layer 130; Non-woven fabric layer 141; Non-woven fabric layer 142; Heat conduction layer 150; Box cover 200; Partition net 210; Heating wire 310; First heating wire 311; Second heating wire 312; Insertion part 320; AC insertion part 321; DC insertion part 322; Temperature controller 330. Detailed implementation manners

[0025] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0026] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

[0027] In the description of the present application, the meaning of several is more than one, and the meaning of multiple is more than two. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0028] In the description of the present application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific content of the technical solution.

[0029] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0030] Reference below Figures 1 to 6 The lunch box heating bag according to the embodiment of the utility model is described.

[0031] like Figures 1 to 2 As shown, the lunch box heating bag according to the embodiment of the utility model includes: a box body 100 and a box cover 200. The inner cavity of the box body 100 is used to place the lunch box. The top of the box body 100 is open, and the bottom and side are provided with heating wires 310 for heating the lunch box; the box cover 200 is connected to the opening at the top of the box body 100 in an openable and closable manner.

[0032] It can be understood that this lunch box heating bag includes a box body 100 and a box cover 200. The bottom and sides of the box body 100 are provided with heating wires 310, so that the lunch box located in the box body 100 can be heated in all directions, so that the food in the lunch box is heated more evenly and the eating taste is improved. The box cover 200 can be opened and closed and connected to the opening at the top of the box body 100, so as to realize the closing or opening of the box body 100; therefore, this lunch box heating bag can heat the lunch box evenly, reduce the heating time, and improve the heating efficiency and the taste of the food.

[0033] Specifically, the box cover 200 can be connected to the box body 100 by a zipper, a magnet, or a buckle.

[0034] It is understandable that it also includes a plug-in portion 320 and a thermostat 330. The plug-in portion 320 is exposed on the side of the box body 100 and is used to connect the power supply. The thermostat 330 is electrically connected to the heating wire 310 and the plug-in portion 320, respectively, and is used to maintain a constant temperature in the box body 100. For example, Figures 1 to 4As shown, in this embodiment, the plug-in part 320 is used to connect to a power source. The temperature controller 330 is electrically connected to the heating wire 310 and the plug-in part 320 respectively. When an external power source is connected, the temperature controller 330 can sense the temperature inside the lunch box heating bag. When the temperature is lower than the set temperature, heating can be turned on through the temperature controller 330 until the temperature inside the box body 100 reaches the set temperature. At this time, after the temperature controller 330 senses that the set temperature is reached, heating will stop and remain at the set temperature until the temperature drops and heating will be carried out again, so as to maintain the temperature inside the lunch box heating bag at the set temperature value all the time.

[0035] It can be understood that an AC power cord and a DC power cord are also included. The plug-in part 320 includes an AC plug-in part 321 and a DC plug-in part 322. The heating wire 310 includes two groups arranged side by side, namely the first heating wire 311 and the second heating wire 312. The AC plug-in part 321 is electrically connected to the first heating wire 311. The AC power cord is used to connect the AC plug-in part 321 and the power source. The DC plug-in part 322 is electrically connected to the second heating wire 312. The DC power cord is used to connect the DC plug-in part 322 and the power source. For example, as Figures 4 to 5 shown, in this embodiment, the AC power cord is used to connect the AC plug-in part 321 and the power source, so as to be able to adapt to the 120V alternating current in the United States. The DC power cord has two modes. One is to adapt to the 12V direct current on a small car, and the other is to adapt to the 24V direct current on a truck. The versatility of the use environment of this lunch box heating bag is improved through the three modes.

[0036] It can be understood that a first side bag 101 and a second side bag 102 are respectively provided outside the box body 100. The first side bag 101 is openably connected to the first side of the box body 100. The plug-in part 320 is arranged between the first side and the first side bag 101. The second side bag 102 is openably connected to the second side of the box body 100. The space between the second side and the second side bag 102 is used to accommodate the AC power cord and the DC power cord. For example, as Figures 1 to 4 shown, in this embodiment, the first side bag 101 is used to set the plug-in part 320, and the second side bag 102 is used to place the AC power cord and the DC power cord, so it can play a role in protecting and storing.

[0037] It can be understood that the plug-in part 320, the temperature controller 330 and the heating wire 310 are all coated with a rubber coating layer. For example, in this embodiment, through the setting of the rubber coating layer, the waterproof performance of the lunch box heating bag can be improved, so as to facilitate the cleaning of the lunch box heating bag and keep it clean.

[0038] It can be understood that a hanging rope is also included. Hooks 103 are provided on two opposite sides outside the box body 100. The two ends of the hanging rope are detachably connected to the two hooks 103. For example, as Figures 2 to 3As shown, in this embodiment, through the detachable connection between the lanyard and the hook 103, it is convenient to hang on the body for easy carrying.

[0039] Specifically, a handle is provided on the top of the lid 200. Therefore, if the method of hanging on the body with a lanyard is not used, it can also be carried by holding the handle.

[0040] It can be understood that a partition net 210 is provided on the inner side of the lid 200, and an accommodation space is formed between the partition net 210 and the inner side of the lid 200 for accommodating tableware. For example, as Figure 2 shown, in this embodiment, the partition net 210 is arranged on the inner side of the lid 200, so that tableware or some other small sundries can be separated from the lunch box by being placed between the partition net 210 and the lid 200.

[0041] It can be understood that the box body 100 includes a support layer 120 and an outer layer 110 from the inside to the outside. The support layer forms the main body of the box body 100 and is used to support the heating wire 310 and the lunch box. The heating wire 310 is arranged inside the support layer 120. For example, as Figure 6 shown, in this embodiment, the outer layer 110 is arranged outside the support layer 120 to play a role in protection and appearance modification. The support layer 120 is used to support the heating wire 310 and the lunch box, forming the main part of the box body 100, thereby improving the overall strength of the lunch box.

[0042] Specifically, the support layer 120 is a PP glue board, which is not only heat-resistant but also fatigue-resistant; the outer layer 110 is made of Oxford cloth.

[0043] It can be understood that a heat conduction layer 150 is also included. The heat conduction layer 150 is arranged inside the support layer 120, and the heating wire 310 is arranged between the heat conduction layer 150 and the support layer 120. The heat conduction layer 150 is used to transfer the heat generated by the heating wire 310 to the inner cavity of the box body 100. For example, as Figure 6 shown, in this embodiment, while the heat conduction layer 150 realizes the isolation between the heating wire 310 and the lunch box, it can also better transfer the heat of the heating wire 310 to the inside of the box body 100, thereby realizing the heating of the lunch box.

[0044] Specifically, the heat conduction layer 150 is made of aluminum foil.

[0045] It can be understood that a heat insulation layer 130 is also included. The heat insulation layer 130 is arranged inside the support layer 120, and the heating wire 310 is arranged between the heat conduction layer 150 and the heat insulation layer 130. The heat insulation layer 130 is used to isolate the heat transfer between the heating wire 310 and the support layer 120. For example, as Figure 6 shown, in this embodiment, the heat insulation layer 130 is located between the heating wire 310 and the support layer 120 to prevent heat dissipation. Specifically, the heat insulation layer 130 is made of pearl cotton.

[0046] It should be understood that it also includes a non-woven fabric layer 142 and a non-woven fabric layer 141. The inner and outer sides of the heating wire 310 are respectively fixed to the non-woven fabric layer 142 and the non-woven fabric layer 141. The heating wire 310 is fixedly arranged between the non-woven fabric layer 142 and the non-woven fabric layer 141, and the non-woven fabric layer 141 and the non-woven fabric layer 142 are sewn between the heat conduction layer 150 and the outer layer 110. The heat insulation layer 130 and the support layer 120 are stuffed between the non-woven fabric layer 141 and the outer layer 110.

[0047] The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the above embodiments. Various changes can be made without departing from the gist of the present application within the scope of knowledge possessed by those of ordinary skill in the art. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. Lunch box heating bag, characterized in that: include: A box body, wherein the inner cavity of the box body is used to place the lunch box, the top of the box body is open, and the bottom and sides are provided with heating wires for heating the lunch box; A box cover, openably connected to the opening of the box body; Among them, the lunch box heating bag also includes a plug-in part and a thermostat. The plug-in part is exposed on the side of the box body and is used to connect to a power source. The thermostat is electrically connected to the heating wire and the plug-in part respectively, and is used to maintain a constant temperature inside the box body.

2. The lunch box heating bag according to claim 1, characterized in that: It also includes an AC power cord and a DC power cord, the plug-in part includes an AC plug-in part and a DC plug-in part, the heating wire includes two groups arranged side by side and are respectively a first heating wire and a second heating wire, the AC plug-in part is electrically connected to the first heating wire, the AC power cord is used to connect the AC plug-in part and a power source, the DC plug-in part is electrically connected to the second heating wire, and the DC power cord is used to connect the DC plug-in part and a power source.

3. The lunch box heating bag according to claim 2, characterized in that: The box body is provided with a first side pocket and a second side pocket respectively, the first side pocket is openably connected to the first side surface of the box body, the plug-in portion is provided between the first side surface and the first side pocket, the second side pocket is openably connected to the second side surface of the box body, and the second side surface and the second side pocket are used to accommodate the AC power cord and the DC power cord.

4. The lunch box heating bag according to any one of claims 1 to 3, characterized in that: The plug-in portion, the temperature controller and the heating wire are all covered with a rubber layer.

5. The lunch box heating bag according to claim 1, characterized in that: A hanging rope is also included. Hooks are arranged on two opposite sides of the box body. Both ends of the hanging rope are detachably connected to the two hooks.

6. The lunch box heating bag according to claim 5, characterized in that: A partition net is arranged on the inner side of the box cover, and a receiving position is formed between the partition net and the inner side of the box cover for receiving tableware.

7. The lunch box heating bag according to claim 1, characterized in that: The box body comprises a support layer and an outer layer from the inside to the outside. The support layer constitutes the main body of the box body and is used to support the heating wire and the lunch box. The heating wire is arranged inside the support layer.

8. The lunch box heating bag according to claim 7, characterized in that: It also includes a heat-conducting layer, which is arranged inside the supporting layer. The heating wire is arranged between the heat-conducting layer and the supporting layer. The heat-conducting layer is used to transfer the heat generated by the heating wire to the inner cavity of the box body.

9. The lunch box heating bag according to claim 8, characterized in that: It also includes a heat insulation layer, which is arranged inside the supporting layer. The heating wire is arranged between the heat conductive layer and the heat insulation layer. The heat insulation layer is used to isolate the heat transfer between the heating wire and the supporting layer.

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