Cigarette low-temperature storage equipment

Abstract

The low-temperature storage equipment comprises a closed storage container and semiconductor chilling plates arranged on at least one side face of the closed storage container, the semiconductor chilling plates are connected with a direct-current power source outside the closed storage container, and the hot ends of the semiconductor chilling plates are located on the outer side of the closed storage container. The cold end of the semiconductor chilling plate is located on the inner side of the closed storage container. The semiconductor chilling plate is arranged on the side face of the closed storage container, so that the cold end absorbs heat in the closed storage container and transmits the heat to the outside of the closed storage container from the hot end, the interior of the closed storage container is cooled, the temperature difference between the cold end and the hot end reaches a balance point after reaching a preset value, and the temperature of the cold end and the hot end is kept stable; the temperature stability of the low-temperature storage equipment is improved, the cigarettes are kept in a low-temperature environment all the time, the mould breeding probability is reduced, and meanwhile the smoking taste of the cigarettes is kept stable.

Description

Technical Field

[0001] This application relates to the field of cigarette technology, and more specifically, to a low-temperature storage device for cigarettes. Background Technology

[0002] Aspergillus flavus is an aerobic bacterium that readily grows in grains, oil crops, dried fruits, and other foods. Under suitable temperature and humidity conditions, the mold begins to multiply. Its optimal growth temperature is 25℃~40℃, so mold growth often occurs in hot and humid environments during the summer.

[0003] In hot and humid air, cigarette tobacco absorbs moisture more quickly, creating more favorable conditions for mold growth and causing cigarettes to spoil. Therefore, it is necessary to eliminate the root causes of mold growth to prevent cigarette spoilage, namely, reducing the temperature and humidity of the environment where cigarettes are stored. However, the temperature control stability of existing cigarette storage equipment is poor. Utility Model Content

[0004] This application provides a low-temperature storage device for cigarettes. A semiconductor cooling chip is provided on the side of a sealed storage container, so that the cold end absorbs heat from inside the sealed storage container and transfers it from the hot end to the outside of the sealed storage container, thereby cooling the inside of the sealed storage container. After the temperature difference between the cold and hot ends reaches a preset value, an equilibrium point is reached, and the temperature of the cold and hot ends remains stable. This improves the temperature stability of the low-temperature storage device, keeps the cigarettes in a low-temperature environment at all times, reduces the chance of mold growth, and maintains a stable smoking taste.

[0005] This application provides a low-temperature storage device for cigarettes, including a sealed storage container and a thermoelectric cooler disposed on at least one side of the sealed storage container. The thermoelectric cooler is connected to a DC power supply outside the sealed storage container, with the hot end of the thermoelectric cooler located outside the sealed storage container and the cold end of the thermoelectric cooler located inside the sealed storage container.

[0006] Preferably, the semiconductor cooling chip includes multiple thermocouple pairs, each thermocouple pair including an N-type semiconductor element and a P-type semiconductor element.

[0007] Preferably, a heat transfer layer is provided on the cold end and / or hot end of the semiconductor cooling chip.

[0008] Preferably, the heat transfer layer is a graphene film.

[0009] Preferably, the switch for the DC power supply is an insulated insert.

[0010] Preferably, the sealed storage container is rectangular or cylindrical in shape.

[0011] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0012] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0013] Figure 1 An overall structural diagram of the low-temperature storage device for cigarettes provided in this application;

[0014] Figure 2 for Figure 1 Enlarged view of the lower part;

[0015] Figure 3 for Figure 1 A bottom view;

[0016] Figure 4 for Figure 1 The lower front view. Detailed Implementation

[0017] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0018] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0019] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0020] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0021] This application provides a low-temperature storage device for cigarettes. A semiconductor cooling chip is disposed on the side of a sealed storage container, allowing the cold end to absorb heat from inside the sealed storage container and transfer it from the hot end to the outside of the sealed storage container, thus cooling the interior of the sealed storage container. Once the temperature difference between the cold and hot ends reaches a preset value, an equilibrium point is reached, maintaining a stable temperature at both ends. This improves the temperature stability of the low-temperature storage device, keeping the cigarettes in a consistently low-temperature environment, reducing the likelihood of mold growth, and maintaining a stable smoking flavor. Furthermore, a heat transfer layer is disposed on at least one end of the semiconductor cooling chip, utilizing a graphene film with excellent thermal conductivity to assist in heat exchange between the cold and hot ends and the air. This accelerates heat dissipation from the hot end to the outside air and heat transfer from the surrounding air to the cold end, further lowering the cold end temperature, improving cooling efficiency, significantly reducing energy consumption, and extending the lifespan of the semiconductor cooling chip.

[0022] The low-temperature storage device for cigarettes provided in this application is used for low-temperature preservation of cigarette products. It includes a sealed storage container and a semiconductor cooling chip disposed on at least one side of the sealed storage container. The semiconductor cooling chip is connected to a DC power supply outside the sealed storage container. The hot end of the semiconductor cooling chip is located outside the sealed storage container, and the cold end of the semiconductor cooling chip is located inside the sealed storage container.

[0023] The sealed storage container 100 can be rectangular, cylindrical, or other shapes, depending on the shape of the cigarette box containing the stored cigarettes.

[0024] Figure 1-4 In the illustrated embodiment, a thermoelectric cooler 110 is provided on the bottom surface of the sealed storage container 100. The thermoelectric cooler 110 is connected to a DC power supply 120 outside the sealed storage container 100. The hot end 111 of the thermoelectric cooler 110 is located on the outside of the sealed storage container 100, and the cold end 112 of the thermoelectric cooler 110 is located on the inside of the sealed storage container 100.

[0025] As one embodiment, the switch 130 of the DC power supply 120 is an insulating insert. When it is necessary to turn off the DC power supply 120, the insulating insert is inserted between the positive and negative terminals of the power supply to disconnect the connection between the positive and negative terminals. When it is necessary to turn on the DC power supply 120, the insulating insert is pulled out to connect the positive and negative terminals of the DC power supply, thereby forming a closed circuit between the power supply and the thermoelectric cooler, generating current in the thermoelectric cooler, and starting operation.

[0026] As an example, such as Figure 1-4As shown, the thermoelectric cooler 110 includes multiple thermocouple pairs 113, each thermocouple pair 113 including an N-type semiconductor element and a P-type semiconductor element. When a direct current flows through the thermocouple pair, heat transfer occurs between the two ends of the thermoelectric cooler 110. When the current flows from the junction of the N-type semiconductor element to the junction of the P-type semiconductor element, it absorbs heat and becomes the cold junction 112. When the current flows from the junction of the P-type semiconductor element to the junction of the N-type semiconductor element, it releases heat and becomes the hot junction 111.

[0027] The sealed storage container forms a closed area. As can be seen from the above, the heat inside the container is absorbed by the cold end of the semiconductor cooling chip, which lowers the temperature. The hot end of the semiconductor cooling chip transfers heat to the outside, causing the outside temperature of the container to rise. When the temperature difference between the cold and hot ends reaches a preset value, the heat transfer reaches an equilibrium point, and the temperature of the cold and hot ends will no longer change. This keeps the temperature inside the sealed storage container stable, keeping the cigarettes inside the sealed storage container in a low-temperature environment at all times, reducing the chance of mold growth, and maintaining a stable cigarette flavor.

[0028] Preferably, a heat transfer layer is provided on the cold end and / or hot end of the thermoelectric cooler to help the thermoelectric cooler quickly reach the preset temperature.

[0029] As one example, the heat transfer layer is a graphene film. Graphene has excellent thermal conductivity, enabling cooling without the need for any fluids or chemical agents. Furthermore, it boasts high cooling efficiency and short cooling time, significantly reducing energy consumption. By laying the graphene film on the semiconductor cooling chip, graphene facilitates heat exchange between the hot and cold ends and the air, accelerating heat dissipation from the hot end to the outside air and heat transfer from the surrounding air to the cold end. As the temperature of the hot end decreases, the temperature of the cold end also decreases accordingly, resulting in a lower overall temperature.

[0030] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A low-temperature storage device for cigarettes, characterized by comprising: The application relates to a closed storage container and a semiconductor refrigerating sheet arranged on at least one side of the closed storage container, wherein the semiconductor refrigerating sheet is connected with a direct-current power supply outside the closed storage container, the hot end of the semiconductor refrigerating sheet is located outside the closed storage container, and the cold end of the semiconductor refrigerating sheet is located inside the closed storage container. A heat transfer layer is arranged on the cold end and / or the hot end of the semiconductor refrigerating sheet, and the heat transfer layer is a graphene film used at least for accelerating heat dissipation of the hot end to external air. The closed storage container is a cigarette case used for storing cigarettes. The direct-current power supply is provided with a switch used for switching off and on according to use requirements.

2. The low temperature storage apparatus for cigarettes according to claim 1, wherein The semiconductor refrigerating sheet comprises a plurality of thermocouple pairs, each of which comprises an N-type semiconductor element and a P-type semiconductor element.

3. The low temperature storage apparatus for cigarettes according to claim 1, wherein The switch of the direct-current power supply is an insulating sheet.

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