A heat preservation box of graphene electric heating film

Abstract

The utility model discloses a heat preservation box of graphene electric heating film, including the box, and its characterized in that: the box inner side wall forms graphene heating film layer and heat conducting layer in proper order to the inside, the middle of box is provided with the partition along the length direction of box, and this partition divides the box into two containing space, the partition top is provided with two hinged shafts, and the cover is hingedly connected through the hinged shaft respectively, is used for covering two containing space respectively, the bottom surface vertical setting of each containing space has the isolation net body, and the isolation net body with heat conducting layer is set up with certain gap, and the isolation net body is used for preventing the object of waiting for heat preservation that puts into containing space to stick to the local temperature excessively high that happens in heat conducting layer inner wall, the utility model discloses a partition and divides the box into two independent containing space, and every space is equipped with independent cover, realizes small area temperature control, and makes temperature control more accurate.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation equipment technology, specifically a thermal insulation box with a graphene electric heating film. Background Technology

[0002] Existing insulated boxes mostly use traditional heating methods, typically involving heating wires or hot water circulation within the box walls. This results in uneven heating, high energy consumption, and localized overheating. In scenarios requiring the storage of different items in separate areas, traditional insulated boxes cannot achieve temperature control within small zones, leading to poor insulation. This is especially true for scenarios where the insulated area is large; because the heating elements are located within the box walls, the temperature distribution decreases from the inner wall inwards, and there is no airflow to evenly distribute the heat.

[0003] In addition, uneven heat distribution inside the insulated box can easily cause localized overheating or underheating of items, seriously affecting the preservation effect. In particular, if the object to be heated is placed in close contact with the inner wall of the insulated box, it is easy to cause heat accumulation and overheating.

[0004] Therefore, there is a need for an insulated box that provides uniform heating, energy efficiency, and independent temperature control for different zones. Utility Model Content

[0005] The purpose of this invention is to provide a heat preservation box with a graphene electric heating film to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A heat preservation box with a graphene electric heating film includes a box body, characterized in that: a graphene heating film layer and a heat-conducting layer are formed sequentially on the inner side wall of the box body; a partition is provided in the middle of the box body along the length direction of the box body, which divides the box body into two accommodating spaces; two hinge shafts are provided on the top of the partition, and a cover is respectively hinged to the hinge shafts to cover the two accommodating spaces; an isolation mesh is erected on the bottom surface of each accommodating space, and the isolation mesh is set with a certain gap from the heat-conducting layer, the isolation mesh being used to prevent the object to be insulated placed in the accommodating space from sticking to the inner wall of the heat-conducting layer and causing local overheating.

[0008] Preferably, the gap between the insulating mesh and the heat-conducting layer is 10 to 20 millimeters.

[0009] Preferably, the isolation net includes multiple longitudinal columns erected on the bottom surface of the accommodating space, and multiple square horizontal bars connecting the longitudinal columns.

[0010] Preferably, the partition has four independent air inlet channels at the four corners. One end of each air inlet channel forms an air inlet nozzle that connects to the corresponding accommodating space, and the other end forms an air outlet. The air outlet is connected to the air inlet of a fan, and the air outlet of the fan blows air into the gap between the isolation mesh and the heat-conducting layer to evenly disperse the heat on the inner wall of the heat-conducting layer.

[0011] Preferably, a flow guide block is provided in the middle of the inner wall of the heat-conducting layer away from the partition. The flow guide block is a trapezoidal body that is set vertically. The two sides of the trapezoidal body are concave arc surfaces, which are used to guide the air blown in from the certain gap between the isolation mesh and the heat-conducting layer to the middle of the accommodating space, so as to keep the object to be insulated placed in the accommodating space warm.

[0012] Preferably, each of the air inlet channels has two air inlets, which are formed near the center of the side of the partition.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model divides the box into two independent storage spaces by using a partition, and each space is equipped with an independent cover, which realizes temperature control in a small area, making the temperature control more precise, while meeting the storage needs of different items and improving the flexibility and convenience of use.

[0015] 2. In this utility model, an isolation net is erected on the bottom surface of each of the accommodating spaces to ensure that the object placed inside is isolated from the inner wall of the heat-conducting layer at a certain distance, preventing the object from directly sticking to the inner wall of the heat-conducting layer and preventing local overheating.

[0016] 3. Through the combined design of the air inlet channel and the fan, this utility model can evenly disperse the heat of the inner wall of the heat-conducting layer to the entire containment space, avoiding local temperatures that are too high or too low. At the same time, the setting of the guide block further optimizes the airflow path, ensuring uniform heat transfer and improving the heat preservation effect and energy efficiency ratio. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a top view of the present invention with the cover disassembled;

[0019] Figure 3 for Figure 2 A magnified view of part A in the image;

[0020] Figure 4 This is a three-dimensional structural diagram of the present invention with the cover disassembled.

[0021] Figure 5 for Figure 4 A magnified view of part B in the image.

[0022] In the diagram: 1-box body; 2-graphene heating film layer; 3-heat-conducting layer; 4-partition; 5-accommodating space; 6-hinge shaft; 7-cover body; 8-isolation mesh body; 9-longitudinal column; 10-square horizontal bar; 11-air inlet channel; 12-air inlet nozzle; 13-air outlet; 14-fan; 15-guide block. 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] like Figures 1 to 5 As shown, this utility model is a graphene electric heating film insulated box used to keep objects warm, especially suitable for keeping food warm. For example, in the existing food delivery industry, this insulated box can be used to place the food being delivered and keep it warm during the delivery process. Figures 1 to 4 As shown, the graphene electric heating film insulation box includes a box body 1. A graphene heating film layer 2 and a heat-conducting layer 3 are formed sequentially on the inner wall of the box body 1. The graphene heating film layer 2 has high-efficiency heat conduction and energy-saving characteristics, enabling it to quickly and evenly transfer heat to the heat-conducting layer 3. Further optimized, a partition 4 is provided along the length of the box body 1, dividing the box body 1 into two independent storage spaces 5. Each storage space 5 is hinged to a lid 7 via a hinge shaft 6. The lid 7 can be opened and closed independently, facilitating the storage and retrieval of items in different areas.

[0025] Furthermore, an insulating mesh 8 is erected vertically on the bottom surface of each accommodating space 5, with a gap of 10 to 20 millimeters between the insulating mesh 8 and the heat-conducting layer 3. More specifically, the insulating mesh 8 includes multiple longitudinal columns 9 and multiple square horizontal bars 10 connecting the longitudinal columns 9. This structural design can effectively prevent the object to be insulated from directly contacting the inner wall of the heat-conducting layer 3, avoiding excessively high local temperatures.

[0026] like Figure 2 , Figure 3 and Figure 4As shown, four independent air inlet channels 11 are formed at the four corners of the partition 4. One end of each air inlet channel 11 is connected to the air inlet nozzle 12 of the accommodating space 5, and the other end is connected to the air outlet of the fan 14. When the fan 14 is working, the airflow enters the accommodating space 5 through the air inlet nozzle 12, dispersing the heat on the inner wall of the heat-conducting layer 3 evenly. The air pressure near the air inlet nozzle 12 will decrease, and the air in the middle of the accommodating space 5 will flow to supplement the air pressure near the air inlet nozzle 12, forming a flow circulation and evenly distributing the heat. In a further optimized design, each air inlet channel 11 has two air inlets 12, located near the middle of the side of the partition 4, to enhance the airflow coverage.

[0027] like Figure 2 and Figure 5 As shown, a flow guide block 15 is provided in the middle of the inner wall of the heat-conducting layer 3 away from the partition 4. The flow guide block 15 is a vertically arranged trapezoidal body (such as...). Figure 5 As shown in the figure, its two sides are concave arc surfaces. This design can guide airflow to the middle area of ​​the containing space 5, further optimize heat distribution, and ensure that the object to be insulated is heated evenly.

[0028] When using this insulated box, users can place different items into the two compartments 5 as needed and independently control the temperature of each compartment. The graphene heating film layer 2 generates heat when energized, which is transferred to the compartments 5 through the heat-conducting layer 3. After the fan 14 is started, the airflow passes sequentially through the air inlet nozzle 12 and the air inlet channel 11, flows through the inner wall of the heat-conducting layer 3, and then enters the compartments 5, evenly dispersing the heat. The guide block 15 further guides the airflow towards the central area to prevent heat accumulation. The design of the insulating mesh 8 effectively prevents items from directly contacting the high-temperature inner wall, preventing heat buildup and ensuring safety.

[0029] This invention features a simple structure, uniform heating, and high energy efficiency, making it particularly suitable for scenarios requiring independent temperature control in different areas.

[0030] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A heat preservation box with a graphene electric heating film, comprising a box body (1), characterized in that: The inner wall of the box (1) is formed with a graphene heating film layer (2) and a heat-conducting layer (3) in sequence. A partition (4) is provided in the middle of the box (1) along the length of the box (1), which divides the box (1) into two accommodating spaces (5). Two hinge shafts (6) are provided on the top of the partition (4), and a cover (7) is respectively hinged to the hinge shafts (6) to cover the two accommodating spaces (5). An isolation net (8) is provided upright on the bottom surface of each accommodating space (5), and the isolation net (8) is provided with a certain gap from the heat-conducting layer (3). The isolation net (8) is used to prevent the object to be insulated from sticking to the inner wall of the heat-conducting layer (3) and causing local overheating.

2. The insulated box according to claim 1, characterized in that: The gap between the isolation mesh (8) and the heat-conducting layer (3) is 10 to 20 millimeters.

3. The insulated box according to claim 1, characterized in that: The isolation net (8) includes multiple longitudinal columns (9) erected on the bottom surface of the accommodating space (5), and multiple square horizontal bars (10) connecting the longitudinal columns (9).

4. The insulated box according to claim 1, characterized in that: The partition (4) has four independent air inlet channels (11) formed at the four corners. One end of the air inlet channel (11) forms an air inlet nozzle (12) that connects to the corresponding accommodating space (5), and the other end forms an air outlet (13). The air outlet (13) is connected to the air inlet of a fan (14). The air outlet of the fan (14) blows air into the gap between the isolation mesh (8) and the heat-conducting layer (3) to evenly disperse the heat on the inner wall of the heat-conducting layer (3).

5. The insulated box according to claim 4, characterized in that: A flow guide block (15) is provided in the middle of the inner wall of the heat-conducting layer (3) away from the partition (4). The flow guide block (15) is a trapezoidal body that is set upright. The two sides of the trapezoidal body are concave arc surfaces, which are used to guide the air blown from the certain gap between the isolation net (8) and the heat-conducting layer (3) to the middle of the accommodating space (5) to keep the object to be insulated in the accommodating space (5) warm.

6. The insulated box according to claim 4, characterized in that: Each of the air inlet channels (11) has two air inlet nozzles (12), which are formed near the center of the side of the partition (4).

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