Dehumidifying and de-insecting grain storage box

Abstract

The application discloses a dehumidifying and deinsectizing grain storage box, which comprises a rice bucket main body with a hollow structure, wherein the rice bucket main body comprises an expansion layer, a rice storage layer and a base layer from top to bottom, the top of the expansion layer is covered with a bucket cover, a rice taking assembly and a refrigeration system assembly are installed in the base layer, the rice taking assembly is assembled on one side of the base layer, the refrigeration system assembly is installed on the other side of the base layer, one end of the refrigeration system assembly is communicated with a cavity of the rice storage layer, and the other end of the refrigeration system assembly is communicated with the outside atmosphere; and the application relates to the technical field of grain storage devices. The application utilizes internal closed circulation, and through condensation and concentration, water droplets are left on the refrigeration fin; then, the water droplets are vaporized by using the heat of the semiconductor and the waste heat of the heating end fin in the heat chamber; through a gas pump and two electromagnetic valves, high-humidity gas is discharged into the air by utilizing external closed circulation; one cycle is completed in a short time, and the application is energy-saving and efficient.

Description

Technical Field

[0001] This invention relates to the field of grain storage device technology, and in particular to a dehumidifying and insect-repelling grain storage box. Background Technology

[0002] Food is the most important thing for people, especially grains and legumes, which are the main sources of energy and nutrition for humans. Therefore, grain storage is an important issue.

[0003] Taking the Chinese as an example, rice jars have traditionally been made of earthenware or wood. Earthenware jars are generally a good choice, but their large size and weight make them suitable only for large families in the past, not for small families today. While wooden buckets can be made smaller, their poor moisture resistance and tendency to mold make them unsuitable materials.

[0004] Thanks to technological advancements, there are now many options for materials used to make grain storage containers, including stainless steel, ceramic, glass, and various types of plastic. Each type has its own advantages and disadvantages. Currently, the most common material for rice containers is various types of plastic because they are inexpensive and do not absorb water, making them the primary material for rice containers.

[0005] Of course, grain can be vacuum-packed at the factory to remove the air, preventing insects, mold, and spoilage; it can also be filled with dry nitrogen to achieve the same effect. However, once purchased and opened, proper storage is crucial. For most households, two key storage conditions must be considered: temperature and humidity.

[0006] Based on a review of various literature and materials, we compiled data and statistically analyzed the effects of temperature and humidity on grain, aiming to identify optimal methods for grain preservation. The statistics revealed a critical point: temperatures below 15 degrees Celsius and humidity below 45% are considered unfavorable for grain storage. Below these conditions, conditions detrimental to grain preservation are created. Therefore, creating such an environment, even if only one condition is met, is beneficial for grain preservation.

[0007] According to statistical yearbooks, the average annual relative humidity in southern cities is mostly above 65%, with Guangzhou, Haikou, Guiyang, and Chengdu reaching 82%, while Beijing's average annual humidity is only 49%. This shows that in southern regions where rice is the staple food, the high humidity is extremely detrimental to grain preservation!

[0008] Regardless of temperature, as long as the humidity is below 40%, pests, mold, and spoilage will be minimized, greatly extending the shelf life and safety of food.

[0009] In domestic homes, indoor temperatures typically range from 20 to 30 degrees Celsius, a suitable environment for humans but also conducive to insects and mold growth. Continuously lowering the temperature of a rice container to below 15 degrees Celsius is costly and energy-intensive, making it impractical. Rice, flour, and bean storage containers are enclosed spaces. Finding ways to reduce humidity to 40-45 degrees Celsius within this microenvironment, while simultaneously minimizing temperature to ensure safe food storage, has become a pressing problem for those skilled in the art.

[0010] Chinese utility model patent, patent number 202122596732.X, application date October 27, 2021, discloses a constant temperature and dehumidification rice container, including a rice container and an internal circulation pipe connected to the rice container. A semiconductor refrigeration dehumidification module is installed on the internal circulation pipe, as well as a first damper and a second damper for controlling the opening and closing of the internal circulation pipe. The first damper and the second damper are respectively located on both sides of the semiconductor refrigeration dehumidification module. Addressing the technical problem that existing constant temperature rice containers easily lead to rice clumping and mold growth, this utility model provides a constant temperature and dehumidification rice container that utilizes low-humidity cold air to achieve constant temperature and low humidity. Simultaneously, it can control the temperature of the rice inside the container to decrease slowly, ensuring even cooling and preventing caking due to drastic temperature drops. In this invention, the humidity sensor is positioned between the inner and outer containers, making it unable to monitor the humidity inside the rice container. Furthermore, in this embodiment, it is positioned between the fourth and fifth air vents, completely detached from the humidity inside the rice container. Additionally, even when the drain vent 6 is opened, the condensed water droplets do not drip down sufficiently, and there is no airflow to vaporize them, making it difficult to remove moisture that affects humidity. Moreover, this structure is primarily for low-temperature storage; when rice is taken out, humid air easily enters, causing moisture to condense and clump together upon contact with the cold rice. When this problem occurs, there is no mechanism to monitor the humidity inside the rice container or to activate in response to condensation or high humidity. Therefore, this invention is primarily designed for temperature control and cooling, with poor humidity control.

[0011] Therefore, how to develop a grain storage box that can actively dehumidify and exhaust steam has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0012] The purpose of this invention is to provide a dehumidifying and insect-repelling grain storage box to solve the problem that existing storage equipment does not dehumidify thoroughly enough.

[0013] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0014] This invention discloses a dehumidifying and insect-repellent grain storage box, comprising a hollow rice bucket body. The rice bucket body includes, from top to bottom, an expansion layer, a rice storage layer, and a base layer. The top of the expansion layer is covered with a lid. A rice dispensing component and a refrigeration system component are installed inside the base layer. The rice dispensing component is assembled on one side of the base layer, and the refrigeration system component is installed on the other side of the base layer. One end of the refrigeration system component is connected to the cavity of the rice storage layer, and the other end is connected to the outside atmosphere. The top of the rice dispensing component is connected to the rice leakage port of the rice storage layer.

[0015] Preferably, the expansion layer and the rice storage layer are separated by a perforated partition but are spatially connected, and the rice storage layer and the base layer are separated into two independent spaces by a closed partition.

[0016] Preferably, the base layer is divided into a cold cavity and a hot cavity by a vertically placed partition. The cold cavity and the hot cavity are arranged side by side. All components of the refrigeration system assembly are respectively installed in the cold cavity and the hot cavity, with the cold cavity located on the inner side and the hot cavity located on the outer side.

[0017] Preferably, the refrigeration system components include an air pump, a closed-circuit cooling fin, a semiconductor cooling chip, heat dissipation fins, a hot-end fan, a control board, a battery, and two solenoid valves. The air pump, closed-circuit cooling fin, control board, battery, and first solenoid valve are installed in the cold cavity of the base layer. The control board and battery are placed close to the rice dispensing component. The heat dissipation fin, hot-end fan, and second solenoid valve are installed in the hot cavity of the base layer. The air pump, semiconductor cooling chip, hot-end fan, first solenoid valve, and second solenoid valve are all electrically connected to the control board. The air inlet of the air pump is connected to the opening of the second solenoid valve, the air outlet of the air pump is connected to one end of the closed-circuit cooling fin, the other end of the closed-circuit cooling fin is connected to the opening of the first solenoid valve, and the opening of the first solenoid valve is connected to the air inlet pipe. The first air inlet of the air intake pipe is located within the rice storage layer. The third opening of the first solenoid valve extends through the drain outlet of the pipe, passing through the partition and into the water collection tank provided in the hot chamber. The second opening of the second solenoid valve is connected to the air outlet pipe, and the exhaust end of the air outlet pipe is set as the air outlet. The third opening of the second solenoid valve extends through the pipe to the top of the heat dissipation fins, and the front end of the pipe is set as the second air inlet. The semiconductor cooling chip is installed in the mounting hole in the middle of the partition. The closed cooling fins are located on the cold end side of the semiconductor cooling chip. The heat dissipation fins are installed on the partition and are tightly attached to the hot end side of the semiconductor cooling chip. The hot end fan is installed on the outside of the heat dissipation fins. The side wall of the base layer is provided with heat dissipation holes, and the heat dissipation holes correspond to the positions of the hot end fan.

[0018] Preferably, the heat dissipation holes are provided in a plurality of form and are distributed in a matrix on the side wall of the base layer.

[0019] Preferably, the first air inlet is connected to the air inlet mesh via a sealing ring, and the air inlet mesh is placed at the bottom of the cavity of the rice storage layer; the air outlet is connected to an air outlet mesh, which includes a first mesh layer and a sponge filter mesh that are combined together.

[0020] Preferably, a humidity sensor and a display are provided on the side wall of the rice storage layer. The humidity sensor and the display are both electrically connected to the control motherboard, and the humidity sensor is located above the display.

[0021] Preferably, the rice dispensing assembly includes a moving plate assembly and a rice holding box. The moving plate assembly includes a rice dispensing moving plate and a return spring. One end of the rice dispensing moving plate is connected to a plug that matches the rice leakage opening of the rice storage layer. The other end of the rice dispensing moving plate is connected to the return spring. The other end of the rice dispensing moving plate is subjected to downward force and compresses the return spring, causing the whole assembly to move downward. The rice leakage opening of the rice storage layer opens, and the rice falls into the rice holding box. The rice holding box is slidably connected to the base layer and is located directly below the rice dispensing moving plate.

[0022] Preferably, the expansion layer is configured as a steamer-type structure, and multiple grain bottles are placed inside the steamer-type structure, with multiple ventilation holes provided on the top cover of the grain bottles.

[0023] Preferably, the expansion layer is configured as a drawer-type structure, and the bottom plate of the drawer-type structure is provided with multiple ventilation holes.

[0024] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0025] The main function of this invention is to condense the humidity inside the rice container into water droplets through an internal closed-loop circulation, which remain on the fins of the cooler. Then, the condensed water droplets are vaporized by the semiconductor reheat and the residual heat of the heating end fins in the hot chamber. Through an air pump and two solenoid valves, the high-humidity gas is finally discharged outside the rice container through an external closed-loop circulation. One cycle is completed in a short time. Through multiple cycles of small amounts, the moisture is discharged from the rice container. This is both energy-saving and efficient, effectively ensuring the dryness of the internal space of the storage box, achieving the effects of dehumidification, insect control, and mold prevention. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram (internal perspective) of the dehumidifying and insect-repelling grain storage box of the present invention;

[0028] Figure 2 This is a schematic diagram of the dehumidification operation of the present invention;

[0029] Figure 3 This is a schematic diagram of the drainage operation state of the present invention;

[0030] Figure 4 This is a schematic diagram of the air inlet of the rice storage container of the present invention;

[0031] Figure 5 This is a schematic diagram of the air outlet of the rice storage bucket of the present invention;

[0032] Figure 6 This is a schematic diagram of the connection structure between the movable plate assembly and the rice container of the present invention;

[0033] Figure 7 This is a front view (sectional view) of the grain bottle of the present invention;

[0034] Figure 8 This is a top view of the grain bottle of the present invention;

[0035] Figure 9 This is a front view of the steamer-type expansion layer of the present invention;

[0036] Figure 10 This is a top view of the steamer-type expanded layer of the present invention;

[0037] Figure 11 This is a front view of the drawer-type expansion layer of the present invention;

[0038] Figure 12 This is a front view of the solenoid valve of the present invention;

[0039] Figure 13 This is a top view of the solenoid valve of the present invention;

[0040] Explanation of reference numerals in the attached diagram: 1. Lid; 2. Grain container; 3. Expansion layer; 4. Air outlet mesh; 5. Rice storage layer; 6. Air pump; 7. Enclosed cooling fins; 8. Semiconductor cooling chip; 9. Partition; 10. Heat dissipation fins; 11. Hot-end fan; 12. Heat dissipation hole; 13. First solenoid valve; 14. Base layer; 15. Water collection tank; 16. Humidity sensor; 17. Display; 18. Air inlet mesh; 19. Control main board; 20. Battery; 21. Moving board assembly; 22. Rice container; 23. Second solenoid valve; 24. First air inlet; 25. Air inlet pipe; 26. Air outlet pipe; 27. Air outlet; 28. Second air inlet; 29. ​​Drain outlet;

[0041] 4-1. First mesh layer; 4-2. Sponge filter screen; 21-1. Rice dispensing moving plate; 21-2. Return spring; 24-1. Sealing ring. Detailed Implementation

[0042] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0044] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0045] like Figure 1-13 As shown, a dehumidifying and insect-repellent grain storage box includes a hollow rice bucket body. The rice bucket body includes, from top to bottom, an expansion layer 3, a rice storage layer 5, and a base layer 14. The top of the expansion layer 3 is covered with a lid 1. A rice dispensing component and a refrigeration system component are installed inside the base layer 14. The rice dispensing component is assembled on one side of the base layer 14, and the refrigeration system component is installed on the other side of the base layer 14. One end of the refrigeration system component is connected to the cavity of the rice storage layer 5, and the other end of the refrigeration system component is connected to the outside atmosphere. The top of the rice dispensing component is connected to the rice leakage port of the rice storage layer 5.

[0046] Specifically, the expansion layer 3 and the rice storage layer 5 are separated by a perforated partition but are spatially connected. The rice storage layer 5 and the base layer 14 are separated into two independent spaces, upper and lower, by a closed partition. The base layer 14 is divided into a cold cavity and a hot cavity by a vertically placed partition 9. The cold cavity and the hot cavity are arranged side by side. All components of the refrigeration system assembly are installed in the cold cavity and the hot cavity, respectively, with the cold cavity located on the inner side and the hot cavity on the outer side.

[0047] Specifically, the refrigeration system components include an air pump 6, a closed-circuit cooling fin 7, a semiconductor cooling chip 8, a heat dissipation fin 10, a hot-end fan 11, a control board 19, a battery 20, and two solenoid valves. The air pump 6, closed-circuit cooling fin 7, control board 19, battery 20, and first solenoid valve 13 are installed in the cold cavity of the base layer 14. The control board 19 and battery 20 are placed close to the rice-dispensing component. The heat dissipation fin 10, hot-end fan 11, and second solenoid valve 23 are installed in the hot cavity of the base layer 14. The air pump 6, semiconductor cooling chip 8, hot-end fan 11, first solenoid valve 13, and second solenoid valve 23 are all electrically connected to the control board 19. Specifically, the air pump 6 is a small air pump, which is low-flow, high-pressure, with an outlet pressure of approximately -60 kPa to 100 kPa. Under the negative pressure of intake and the high pressure of outlet, its pressure can easily pass through the gaps in the rice, and a cycle can be completed in a small space of about 20 liters within three to four minutes.

[0048] like Figure 2-3 As shown in Figures 12 and 13, the air inlet of the air pump 6 is connected to the opening N1 of the second solenoid valve 23, and the air outlet of the air pump 6 is connected to one end of the closed-type cooling fin 7. The other end of the closed-type cooling fin 7 is connected to the opening N1 of the first solenoid valve 13. The opening N2 of the first solenoid valve 13 is connected to the air inlet pipe 25. The first air inlet 24 of the air inlet pipe 25 is located inside the rice storage layer 5. The opening N3 of the first solenoid valve 13 extends into the water collection tank 15 set in the hot cavity through the drain outlet 29 of the pipe, passing through the partition 9. The opening N2 of the second solenoid valve 23 is connected to the air outlet pipe 26. The exhaust end of the air outlet pipe 26 is set as the air outlet 27. The opening of the second solenoid valve 23... The N3 gas duct extends above the heat sink 10 via a pipe. The front end of the pipe is configured as a second air inlet 28, which is mainly used to transfer the heat from the heat sink 10 to the cooling fins 7 via the air pump 6, and vaporize the water condensed on the cooling fins 7 into a small amount of steam for discharge. The semiconductor cooling chip 8 is installed in the mounting hole in the middle of the partition 9. The closed cooling fin 7 is located on the cold end side of the semiconductor cooling chip 8. The heat sink 10 is installed on the partition 9 and is tightly attached to the hot end side of the semiconductor cooling chip 8. The hot end fan 11 is installed on the outside of the heat sink 10. The side wall of the base layer 14 is provided with heat dissipation holes 12, which correspond to the positions of the hot end fan 11.

[0049] like Figure 4 , 5As shown, specifically, the first air inlet 24 is connected to the air inlet mesh 18 via a sealing ring 24-1, and the air inlet mesh 18 is placed at the bottom of the cavity of the rice storage layer 5; the air outlet 27 is connected to an air outlet mesh 4, which includes a first mesh layer 4-1 and a sponge filter 4-2 combined together. Specifically, the air inlet mesh 18 is configured as a filter structure, which has the function of dust removal and filtration, and can prevent the air in the rice container from circulating into the refrigeration parts and sucking in fine dust and broken rice, and can be easily disassembled and cleaned at regular intervals. Meanwhile, the rice storage layer 5, which is the box for storing rice, has a sloped bottom, allowing rice to be taken out from the bottom without opening the lid. During the internal dehumidification and circulation operation, dry gas enters from the bottom. To ensure that rice does not block the air inlet on the air inlet pipe 25 or fall into the air inlet, a special porous air inlet mesh 18 is designed. The air inlet mesh 18 is designed as a porous cup structure, and the end face of the air inlet pipe 25 is higher than the air outlet hole, ensuring smooth airflow. The dry air passes through the gaps between the rice grains in all directions, carrying away the moisture between the rice grains into the dehumidification cycle. The porous nature of the air inlet mesh 18 will not cause blockage.

[0050] like Figure 12 , 13 As shown, during operation, the rear end is divided into two parts by a partition. The part near the rice container is the cold chamber for cooling, whose main function is to extract the water vapor from the rice container and the expansion layer, condense it onto the closed cooling fins 7 to form water droplets or ice crystals, and then discharge the water vapor collected on the closed cooling fins 7 through the dehumidification stroke. The rear end is the hot chamber for heating, which has the heating end of the cooler (i.e., the heating end of the closed cooling fins 7 and the semiconductor cooling chip 8 is close to the hot chamber). The cooling fan 11 dissipates heat and cools the heating end of the cooler. In conjunction with the second solenoid valve 23, its main function is to discharge the large amount of heat generated during cooling. During the dehumidification stroke, the first solenoid valve 13, in conjunction with the air pump 6 in the cold chamber and the second solenoid valve 23, discharges the water vapor.

[0051] Specifically, regarding the power supply: the semiconductor cooling chip 8 is a semiconductor cooler. This cooling system component primarily functions as a dehumidifier. During the dehumidification process, the temperature of the dried air will be lower than room temperature, which can incidentally lower the temperature inside the rice container. However, the temperature difference is very limited. It is designed with two different dehumidification and dehumidification processes. Through effective dehumidification, the power consumption can be reduced to an extremely low level. According to a specific embodiment, the semiconductor cooling chip 8 is 20cm × 20cm × 4cm (length, height, and thickness), with a power of 10W. The hot-end fan 11 for cooling is approximately 1.5W, and the air pump 6 is approximately 4W. The total power consumption of the two small solenoid valves and the control board 19 will not exceed 18W. For the portability of the rice container and its sustainability during power outages, a 10000mAh battery pack (i.e., battery 20) is used. 10000 × 3.7V = 37000 milliwatt-hours = 37W / H, meaning it can operate at full power (18W) for 2.05 hours, or 123 minutes. With each dehumidification cycle not exceeding five minutes, it can operate 24.6 times. Even operating four times a day, it can last for 6.15 days, approximately one week. Even in high humidity environments, only increased charging frequency is needed. Battery 20, as the power source, does not require a large power supply; it can be charged using a standard mobile phone charger or supplemented with a regular power bank. Therefore, the placement of the rice container is highly flexible. Furthermore, a prominent low-voltage indicator light is installed near the charging port; when the light turns red, it's time to charge. If there is a power outlet where the rice container is placed, it can be plugged in for a long time. The control board 19 is equipped with an overcharge protection device to effectively avoid overcharging problems.

[0052] Furthermore, to improve efficiency and optimize dehumidification, according to theory, water vapor can condense as long as the temperature is 10 degrees or more below the room temperature. When the temperature is high enough to reach condensation, the area of ​​contact between the closed condenser fins 7 and the airflow is maximized to capture the maximum amount of water vapor contained in the air. Moreover, because the condensed water droplets are close to the room temperature, they can vaporize and be discharged at the fastest speed.

[0053] Specifically, a humidity sensor 16 and a display 17 are installed on the side wall of the rice storage layer 5. Both the humidity sensor 16 and the display 17 are electrically connected to the control main board 19, and the humidity sensor 16 is located above the display 17. The humidity sensor 16 facilitates real-time detection of problems in the rice container and allows for timely adjustments. The display 17 is designed for easy viewing by operators, facilitating quality control.

[0054] like Figure 6As shown, the rice dispensing assembly includes a moving plate assembly 21 and a rice container 22. The moving plate assembly 21 includes a rice dispensing moving plate 21-1 and a return spring 21-2. One end of the rice dispensing moving plate 21-1 is connected to a plug that mates with the rice outlet of the rice storage layer 5. The other end of the rice dispensing moving plate 21-1 is connected to the return spring 21-2. When the other end of the rice dispensing moving plate 21-1 is subjected to downward force and compresses the return spring 21-2, the entire assembly moves downward, opening the rice outlet of the rice storage layer 5, and the rice falls into the rice container 22. The rice container 22 is removably connected within the base layer 14 and is located directly below the rice dispensing moving plate 21-1. Specifically, the upper part is a push-button type, which is convenient and quick to operate, facilitating quantitative rice dispensing.

[0055] In one embodiment, such as Figure 9 , 10 As shown, the expansion layer 3 is configured as a steamer-style structure, and multiple grain bottles 2 are placed inside the steamer-style structure. The top cover of each grain bottle 2 has multiple ventilation holes. Specifically, it can be expanded upwards by one layer during use. The bottom has many ventilation holes, allowing gas circulation with the main layer (rice storage layer 5). More layers can also be stacked to expand upwards. Specifically, the grain bottles 2 are several small cylinders, each with a capacity of approximately one liter, suitable for small packages of beans and grains. The top cover has many small ventilation holes, allowing air circulation within the expansion container. This maintains the humidity inside the grain bottle consistent with the entire rice container. Furthermore, the cylindrical design of the grain bottles ensures that even when tightly packed together, gaps remain, facilitating moisture escape.

[0056] In another embodiment, such as Figure 11 As shown, the expansion layer 3 is configured as a drawer-type structure, and the bottom plate of the drawer-type structure has multiple ventilation holes. In this embodiment, the expansion layer can be heightened and several drawers that can be pulled outward can be installed, so that the required ingredients can be obtained by pulling out the drawers without opening the top cover. However, the opening of the drawers needs to be better sealed.

[0057] Specifically, most households store a variety of beans and grains, in small quantities but with many different types. This is because usage varies, and there are also many snacks and nuts that need drying, as well as medicinal herbs like goji berries and astragalus. For these needs, an expansion layer can be added. The total area occupied remains the same; simply adding more layers upwards provides more space. For easier observation, the expansion layer can be made of a transparent material for convenient access. The humidity level of the expansion layer is the same as the main layer. Because foods with higher humidity have higher vapor pressure, they automatically diffuse to areas with lower humidity, so a circulating fan is not needed to achieve overall humidity balance. When the humidity of the main layer reaches the set upper limit, the dehumidification cycle will be activated.

[0058] The workflow of this invention is as follows:

[0059] Step 1, Initial state (standby): The control motherboard 9 is responsible for monitoring, turning off the cooler composed of the enclosed cooling fins 7 and the semiconductor cooling chip 8, turning off the hot end fan 11, turning off the air pump 6, turning off the first solenoid valve 13, and turning off the second solenoid valve 23.

[0060] Step two: When the humidity exceeds the set upper limit, such as 42% or above, the humidity sensor 16 will be triggered.

[0061] Step 3: Air pump 6 is turned on for 30 seconds. The first and second solenoid valves are still closed to expel any water vapor that may have remained in the closed cooling fins 7 and valves.

[0062] Step four, after 30 seconds, switch to the dehumidification cycle: (e.g.) Figure 2 As shown, when the power is turned on, the N1-N2 channels of the two solenoid valves open and the N1-N3 channels close, and the dehumidification program starts; the air pump continues, the cooler composed of the closed-type cooling fins 7 and the semiconductor cooling chip 8 is on, the hot end fan is on, the second solenoid valve 23 is open and the second opening N2 draws in air from the first air inlet 24 at the top of the rice storage layer 5, through the air inlet pipe 25, enters from the second opening N2 of the second solenoid valve 23 and is then sent to the air inlet of the air pump 6 through the first opening N1; the air pump 6 pumps the high humidity air in the rice storage layer 5 into the closed-type cooling fins 7 used for heat absorption at the cold end, and the cold end fins are closed, so they can only enter from the air outlet of the air pump. The condensed dry air then enters the first opening N1 of the first solenoid valve 13 from the outlet of the closed-type cooling fins 7 and is discharged to the bottom of the rice bucket through the second opening N2 (internal circulation begins). This is the dehumidification cycle, which lasts for one minute.

[0063] Step 5: If the humidity reaches the set value of 40%, the cooler will be powered off, the hot-end fan will be powered off, the first solenoid valve 13 will be closed, the second solenoid valve 23 will be closed, and the air pump 6 will continue to operate. Figure 3 As shown, at this time, the solenoid valve is de-energized, the N1-N3 channel is open, and the N1-N2 channel is closed. This is the drainage stroke. Connect the outlet of the second solenoid valve 23 (N3) to the heat sink fin 10. The residual heat of the heat sink fin 10 at the hot end is pressurized by the air pump to the closed cooling fin 7 at the cold end. Combined with the increase in temperature at the cold end due to heat conduction, the condensed water droplets are vaporized and discharged into the hot cavity through the outlet of the first solenoid valve 13 (N1) and outlet of the outlet (N3). After one minute, the machine stops and returns to the initial state.

[0064] Step Six: If another condition is encountered: the humidity has not reached 40% within one minute, return to Step Four to start the next cycle. The cycle can continue until the humidity reaches the set 40%. Then, after completing Step Five, stop the machine and return to the initial state.

[0065] Step 7: The control board monitors the voltage value at all times. When the battery level reaches a low point, the warning light flashes to notify the user to charge the battery.

[0066] Finally, the times set above are for reference only and will be adjusted according to the optimal timing of the experiment.

[0067] The main function of this invention is to condense the humidity inside the rice container into water droplets through an internal closed-loop circulation, which remain on the closed-loop cooling fins. Then, the condensed water droplets are vaporized by the semiconductor reheat and the residual heat from the heat dissipation fins at the hot end of the hot chamber. Finally, the high-humidity gas is discharged outside the rice container through an external closed-loop circulation via an air pump and two solenoid valves. One cycle is completed in a short time. Through multiple small cycles, the moisture is discharged from the rice container, which is both energy-saving and efficient.

[0068] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A dehumidifying and insect-repelling grain storage box, characterized in that: The rice bucket body includes a hollow structure. From top to bottom, the rice bucket body includes an expansion layer (3), a rice storage layer (5), and a base layer (14). The top of the expansion layer (3) is covered with a lid (1). The base layer (14) is equipped with a rice dispensing component and a refrigeration system component. The rice dispensing component is assembled on one side of the base layer (14), and the refrigeration system component is installed on the other side of the base layer (14). One end of the refrigeration system component is connected to the cavity of the rice storage layer (5), and the other end of the refrigeration system component is connected to the outside atmosphere. The top of the rice dispensing component is connected to the rice leakage port of the rice storage layer (5). The expansion layer (3) and the rice storage layer (5) are separated by a perforated partition but are spatially connected. The rice storage layer (5) and the base layer (14) are separated into two independent spaces by a closed partition. The base layer (14) is divided into a cold cavity and a hot cavity by a vertically placed partition (9). The cold cavity and the hot cavity are arranged side by side. All components of the refrigeration system assembly are installed in the cold cavity and the hot cavity respectively. The cold cavity is located on the inner side and the hot cavity is located on the outer side. The refrigeration system components include an air pump (6), a closed-type refrigeration fin (7), a semiconductor refrigeration chip (8), a heat sink (10), a hot-end fan (11), a control board (19), a battery (20), and two solenoid valves. The air pump (6), the closed-type refrigeration fin (7), the control board (19), the battery (20), and the first solenoid valve (13) are installed in the cold cavity of the base layer (14). The control board (19) and the battery (20) are placed close to the rice dispensing component. The heat sink (10), the hot-end fan (11), and the second solenoid valve (23) are installed in the hot cavity of the base layer (14). The air pump (6), the semiconductor refrigeration chip (8), the hot-end fan (11), the first solenoid valve (13), and the second solenoid valve (23) are all electrically connected to the control board (19). The air inlet of the air pump (6) is connected to the opening (N1) of the second solenoid valve (23), the air outlet of the air pump (6) is connected to one end of the closed cooling fin (7), the other end of the closed cooling fin (7) is connected to the opening (N1) of the first solenoid valve (13), the opening (N2) of the first solenoid valve (13) is connected to the air inlet pipe (25), the first air inlet (24) of the air inlet pipe (25) is located inside the rice storage layer (5), and the first solenoid valve... (13) Opening three (N3) passes through the drain port (29) of the pipe and extends into the water collection tank (15) set in the hot cavity; Opening two (N2) of the second solenoid valve (23) is connected to the exhaust pipe (26), the exhaust end of the exhaust pipe (26) is set as the exhaust port (27), and Opening three (N3) of the second solenoid valve (23) extends through the pipe to the top of the heat dissipation fins (10), and the front end of the pipe is set as the second air inlet (28); The semiconductor cooling chip (8) is installed in the mounting hole in the middle of the partition plate (9). The closed cooling fin (7) is located on the cold end side of the semiconductor cooling chip (8). The heat dissipation fin (10) is installed on the partition plate (9) and closely attached to the hot end side of the semiconductor cooling chip (8). The hot end fan (11) is installed on the outside of the heat dissipation fin (10). The side wall of the base layer (14) is provided with heat dissipation holes (12), and the heat dissipation holes (12) correspond to the positions of the hot end fan (11).

2. The dehumidifying and insect-repelling grain storage box according to claim 1, characterized in that: Multiple heat dissipation holes (12) are provided and distributed in a matrix on the side wall of the base layer (14).

3. The dehumidifying and insect-repelling grain storage box according to claim 1, characterized in that: The first air inlet (24) is connected to the air inlet mesh (18) through a sealing ring (24-1), and the air inlet mesh (18) is placed at the bottom of the cavity of the rice storage layer (5); the air outlet (27) is connected to the air outlet mesh (4), and the air outlet mesh (4) includes a first mesh layer (4-1) and a sponge filter (4-2) that are combined together.

4. The dehumidifying and insect-repelling grain storage box according to claim 1, characterized in that: A humidity sensor (16) and a display (17) are provided on the side wall of the rice storage layer (5). The humidity sensor (16) and the display (17) are both electrically connected to the control motherboard (19), and the humidity sensor (16) is located above the display (17).

5. The dehumidifying and insect-repelling grain storage box according to claim 1, characterized in that: The rice dispensing assembly includes a moving plate assembly (21) and a rice container (22). The moving plate assembly (21) includes a rice dispensing moving plate (21-1) and a return spring (21-2). One end of the rice dispensing moving plate (21-1) is connected to a plug that matches the rice outlet of the rice storage layer (5). The other end of the rice dispensing moving plate (21-1) is connected to the return spring (21-2). When the other end of the rice dispensing moving plate (21-1) is subjected to downward force and compresses the return spring (21-2), the whole assembly moves downward, the rice outlet of the rice storage layer (5) opens, and the grain falls into the rice container (22). The rice container (22) is detachably connected to the base layer (14), and the rice container (22) is located directly below the rice dispensing moving plate (21-1).

6. The dehumidifying and insect-repelling grain storage box according to claim 1, characterized in that: The expansion layer (3) is configured as a steamer-type structure, and multiple grain bottles (2) are placed in the trough of the steamer-type structure. Multiple ventilation holes are provided on the top cover of the grain bottles (2).

7. The dehumidifying and insect-repelling grain storage box according to claim 1, characterized in that: The expansion layer (3) is configured as a drawer-type structure, and the bottom plate of the drawer-type structure is provided with multiple ventilation holes.

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