Unattended solar semiconductor air water taking flower irrigation device

Abstract

The invention discloses an unattended solar semiconductor air water taking flower irrigation device, and relates to the technical field of automatic flower irrigation devices, the unattended solar semiconductor air water taking flower irrigation device comprises a shell, a circulating device located on the shell is used for discharging air into the shell, and a plurality of gathered circulating airflow groups are formed in the shell while the air is discharged; a semiconductor refrigeration unit driven by solar energy is arranged in the area where each gathered circulating airflow cluster is located, the refrigeration units are used for cooling air in the areas where the circulating airflow clusters are located to be below the dew point, the bottom of the shell is communicated with a flow collecting box used for collecting condensate water, and the flow collecting box is communicated with a water outlet pipe used for supplying water to flower soil. The solar semiconductor is used for supplying energy to the device, water can be obtained by condensing air in a self-sufficiency mode, work of refrigeration and irrigation equipment is automatically controlled according to changes of the liquid level of condensed water and the soil humidity, high adaptability is achieved, the device meets the requirements of various environments and different flower plants, and the internal structure of the shell is set, so that the device is convenient to use. Condensation efficiency is improved while water is extracted from condensed air.

Description

Technical Field

[0001] The invention relates to the technical field of automatic flower irrigation devices, in particular to an unattended solar semiconductor air watering flower irrigation device. Background Art

[0002] Plants usually need to be supplied with nutrient solution or watered or supplemented in other ways at least once a week to survive. Especially delicate ornamental potted plants such as crabapples, cyclamen and dahlias need to adjust the amount and frequency of watering according to the growth cycle, environmental temperature and humidity. Excessive or insufficient watering will affect the death of flowers.

[0003] The development of unattended automated flower irrigation devices can realize automatic watering of flowers and plants, especially when individuals are away for a long time, which can reduce people's pressure on maintenance and care. However, existing irrigation devices rely on the preset water tank capacity, and the capacity of the pre-installed water tank is limited. Especially when individuals are away for a long time, the water tank may not be able to store enough water, resulting in water shortage in the later stage. For flowers and plants with a long maintenance cycle or a large demand for water, this limited water source is not enough to maintain their growth, resulting in the risk of plants drying up or dying. Summary of the invention

[0004] 1) Technical issues solved

[0005] The invention provides an unattended solar semiconductor air watering flower irrigation device to solve the problem that the existing irrigation device relies on a fixed water source and has insufficient water source.

[0006] 2) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: an unattended solar semiconductor air watering flower irrigation device, comprising a solar cell panel, and also comprising:

[0008] case;

[0009] a circulation device, located on the shell, for discharging air into the shell;

[0010] A flow guide device is arranged inside the shell and is used to guide the exhausted air to form a plurality of concentrated circulating airflow groups inside the shell;

[0011] A refrigeration unit is configured to be powered by the solar panel to drive a semiconductor refrigerator in the refrigeration unit, and a refrigeration unit is provided on the housing corresponding to each area where the concentrated circulating airflow group is located, and the refrigeration unit is used to cool the air of the circulating airflow group in the corresponding area to below the dew point;

[0012] a collecting box, connected to the bottom of the shell, for collecting condensed water; and

[0013] The water outlet pipe is communicated with the collecting box and leads to the flower soil.

[0014] Furthermore, the shell is hemispherical, and the circulation device includes a plurality of exhaust fans evenly distributed on the arc-shaped side wall of the shell, and the exhaust fans are driven by the solar panel to exhaust air into the shell;

[0015] A plurality of air outlets are arranged on the plane side wall of the shell, and the refrigeration unit is located on the plane side wall of the shell.

[0016] Furthermore, the flow guide device includes a flow guide plate, and the flow guide plate is used to divide the interior of the shell into a plurality of separated spaces, and each of the separated spaces corresponds to a refrigeration unit;

[0017] When the refrigeration unit and the exhaust fan are started, the guide plate guides the exhausted air to form a concentrated circulating airflow group in each of the divided spaces;

[0018] Each refrigeration unit condenses the air moisture in the circulating airflow in the corresponding separated space into condensed water, and the guide plate receives the falling condensed water and flows it to the collecting box.

[0019] Furthermore, the refrigeration unit includes condensing fins, semiconductor refrigeration fins, heat sinks and a heat dissipation fan which are sequentially arranged from the inside of the shell to the outside, wherein:

[0020] The condensing fins are connected to the semiconductor refrigeration fins, and the condensing fins are used to provide a cooling surface for the gathered circulating airflow group, so that the moisture in the air condenses into condensed water droplets on the surface of the condensing fins;

[0021] The semiconductor refrigeration sheet cools down one side of the condensation fins providing the cooling surface to below the dew point;

[0022] The heat sink is located outside the housing, and is configured to dissipate heat generated by the semiconductor refrigeration chip when it is working into the air;

[0023] The heat dissipation fan is located outside the housing and is configured to assist the heat sink in discharging heat outside the housing.

[0024] Furthermore, a valve with an adjustable valve opening is provided at the connection point between the collecting box and the water outlet pipe;

[0025] A humidity sensor is provided at the end of the water outlet pipe away from the valve. The humidity sensor is used to monitor the humidity of the flower soil. The humidity sensor is configured so that the difference between the soil humidity detected by the humidity sensor and a preset threshold is used to control the valve opening of the valve.

[0026] Furthermore, a detection unit for detecting the condensed water capacity is provided in the header tank, and the detection unit includes a liquid level sensor, and the liquid level sensor is used to detect the liquid level of the condensed water in real time. The liquid level sensor is configured to control the start and stop of each of the exhaust fans and refrigeration units when the difference between the detected liquid level value and the preset liquid level threshold is used; specifically:

[0027] When the liquid level detected by the liquid level sensor is lower than the set lower limit liquid level value, the exhaust fan is triggered to start working to discharge air into the shell, the semiconductor refrigeration sheet is controlled to start working to cool the condensing fins to below the dew point, thereby condensing the moisture in the air in the shell, and the heat dissipation fan is controlled to cooperate with the heat dissipation sheet to start heat dissipation;

[0028] When the liquid level sensor detects again that the condensed water level reaches the set upper limit liquid level value, it triggers the control of the semiconductor refrigeration plate to stop working, and turns off the heat dissipation fan and the exhaust fan.

[0029] Furthermore, the shell is made of heat-insulating material or a heat-insulating layer is arranged on the outer side of the shell.

[0030] 3) Beneficial effects:

[0031] Compared with the prior art, the invention has the following beneficial effects:

[0032] The present invention uses solar semiconductors to power the device, ensuring that the device can be self-sufficient in an environment with sufficient light, reducing dependence on the power grid, being environmentally friendly and energy-saving, and automatically controlling the operation of refrigeration and irrigation equipment according to changes in condensed water level and soil moisture. It has high adaptability and is suitable for a variety of environments and the needs of different flowers and plants.

[0033] By planning the structure inside the shell, the exhausted air forms a concentrated circulating airflow group inside the shell, which strengthens the air flow and plans the airflow distribution. The refrigeration unit used to cool the air is arranged in the area where the circulating airflow group is located, which improves the condensation efficiency while condensing and extracting water from the air, and avoids the reduction of condensation efficiency due to wind flow interference and the ineffective cooling of other air in the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A three-dimensional schematic diagram of an unattended solar semiconductor air watering flower irrigation device provided by an embodiment of the present invention;

[0035] Figure 2 A schematic diagram of the positional relationship between a refrigeration unit and a guide plate in an irrigation device provided by an embodiment of the present invention;

[0036] Figure 3A schematic diagram of a scene in which a concentrated circulating airflow mass is formed inside a housing when an exhaust fan in an irrigation device provided by an embodiment of the present invention starts exhausting air;

[0037] Figure 4 A principle block diagram of an irrigation device provided by an embodiment of the present invention;

[0038] Figure 5 A schematic diagram of an application scenario in which a liquid level sensor in a collecting box of an irrigation device provided by an embodiment of the present invention detects the liquid level of collected condensed water, and a positional relationship between a humidity sensor in a water outlet pipe and a valve;

[0039] Figure 6 A comparison cloud diagram of the gas velocity distribution in the shell after stable operation at normal temperature and pressure when the shell of the irrigation device provided in another embodiment of the present invention is a square shell and a spherical shell respectively;

[0040] Figure 7 A schematic diagram showing a comparison of the air temperature in the shell and the condensing fin temperature of the shell in an irrigation device provided by another embodiment of the present invention without heat preservation and at different shell volumes;

[0041] Figure 8 A schematic diagram showing a comparison of the air temperature in the shell and the condensing fin temperature under different shell volume sizes in the shell of an irrigation device provided by another embodiment of the present invention under heat preservation conditions;

[0042] In the figure:

[0043] 10. Shell;

[0044] 20. Exhaust fan;

[0045] 30. Air outlet;

[0046] 40. Refrigeration unit; 401. Condensation fins; 402. Semiconductor refrigeration sheet; 403. Heat sink; 404. Cooling fan;

[0047] 50. Guide plate;

[0048] 60. Collecting box; 601. Liquid level sensor;

[0049] 70, water outlet pipe; 701, humidity sensor; 702, valve;

[0050] 80. Solar panels. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0052] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0053] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0054] In the process of automatically watering plants and flowers, the inventors found that:

[0055] Most automatic irrigation systems rely on pre-installed water tanks for water supply. The capacity of pre-installed water tanks is limited. Especially when individuals are away for a long time, the water tanks may not be able to store enough water, resulting in water shortages later. For plants with long maintenance cycles or high water requirements, this limited water source is not enough to maintain their growth, causing the risk of plants drying up or dying. In addition, users need to manually add water regularly, which increases the maintenance burden of users, especially when users are away from home and no one can regularly add water. This water tank-dependent design is not ideal for unattended situations.

[0056] Furthermore, in order to improve the various defects in the above-mentioned prior art, the embodiment of the present invention proposes an unattended solar semiconductor air watering flower irrigation device, which can use air condensed water to irrigate flowers, so that the device does not rely on external water sources, and increases the independence of the irrigation device. The device is powered by solar semiconductors to ensure that the device can be self-sufficient in an environment with sufficient light, reducing dependence on the power grid, being environmentally friendly and energy-saving. According to the changes in the condensed water level and soil moisture, the operation of the refrigeration and irrigation equipment is automatically controlled, with high adaptability, suitable for a variety of environments and the needs of different plants.

[0057] First, the embodiment of the present invention provides an unattended solar semiconductor air watering flower irrigation device. Figures 1 to 5The irrigation device uses a shell 10 as a supporting structure for the entire device, forming a substantially closed space, restricting the free diffusion of gas and providing a physical boundary for the formation of air masses.

[0058] Please note that, please refer to Figure 6 , Figure 6 When the housing 10 in the irrigation device provided in another embodiment of the present invention is a square housing 10 and a spherical housing 10, respectively, a comparison cloud diagram of the gas velocity distribution in the housing 10 after stable operation at normal temperature and pressure is provided. As can be seen from the figure, when the gas is continuously filled into the housing 10, the velocity distribution of the airflow in the central area of ​​the square housing 10 is more dispersed, especially in the corner area, where the velocity drops or irregular flow occurs, resulting in a more complex airflow field. The airflow velocity of the spherical housing 10 is more concentrated in the central area, the flow velocity is higher and evenly distributed, the airflow path is simple, and the overall flow is more stable.

[0059] More specifically, since the square housing 10 has a structure of straight edges and right angles, the air flow path in the square housing 10 will encounter multiple corners, which easily generates turbulence and airflow accumulation at the corners of the housing 10. Therefore, the distribution of gas velocity in the central area of ​​the housing 10 is relatively dispersed, and the velocity gradient is uneven, resulting in unstable flow.

[0060] The spherical structure has a continuous curved surface that can naturally guide the air to the center without obvious corners or boundaries blocking the airflow. The air flows more evenly, and the velocity distribution is more concentrated in the central area, reducing the velocity dispersion phenomenon. In addition, the symmetry of the spherical structure also helps the air to distribute and circulate more naturally, forming a more stable airflow path, so that the gas maintains a more stable velocity distribution when entering the central area.

[0061] Different from the flat bottom of the square shell 10 , the bottom of the spherical shell 10 is a curved structure, so the condensed water can be smoothly gathered at the bottom of the spherical shell 10 , and the evaporation of the condensed water is reduced, which is convenient for collecting the condensed water.

[0062] In summary, it can be understood that the spherical shell 10 is more suitable for use in air-water irrigation devices that require uniform airflow distribution, and can improve condensation efficiency and reduce energy loss caused by airflow turbulence.

[0063] Regarding how to continuously fill the gas into the hemispherical shell 10 and form a concentrated circulating airflow group inside the shell 10, in some feasible embodiments of the present invention, the circular plane of the hemispherical shell 10 faces upward to ensure that the airflow forms a smooth flow in the arc-shaped side wall, and multiple air outlets 30 are arranged on the circular plane of the shell 10, and the air outlets 30 are used to discharge the cooled air, and the semiconductor refrigeration unit 40 driven by solar energy is also arranged on the shell 10 on the same side as the air outlet 30. Multiple exhaust fans 20 are arranged on the arc-shaped side wall of the shell 10, and these exhaust fans 20 are located in the same horizontal plane, each exhaust fan 20 is slightly inclined toward the air outlet 30, and the exhaust fan 20 is used to discharge the flowing air into the shell 10.

[0064] For information on how to make the exhausted air form a concentrated circulating airflow mass inside the housing 10, please refer to Figure 2 and Figure 3 The key lies in the reasonable planning of the layout of the guide plate 50 provided in the housing 10. Specifically, the guide plate 50 provided inside the housing 10 divides the interior of the housing 10 into at least two interconnected spaces, wherein: the exhaust fan 20 is located in the bottom space below the guide plate 50, and the space is used to accommodate the air exhausted from the exhaust fan 20. The guide plate 50 guides the air from the bottom space to the upper condensing space where the refrigeration unit 40 is located, and forms a concentrated circulating airflow mass there.

[0065] It is understandable that the guide plate 50 needs to be installed at a specific tilt angle so that the air exhausted from the exhaust fan 20 flows upward along the surface of the guide plate 50 and enters the upper space evenly. In some feasible embodiments of the present invention, the guide plate 50 is an arc-shaped plate.

[0066] Compared with the case where the guide plate 50 is not provided, the provision of the guide plate 50 significantly optimizes the airflow organization inside the housing 10. The guide plate 50 divides the space inside the housing 10 into two areas (the bottom area and the upper condensation area), effectively isolating the high-speed airflow directly discharged by the exhaust fan 20 from the low-speed concentrated airflow group in the condensation area. Through the design of the guide plate 50, the air continuously discharged by the exhaust fan 20 is forced to be guided upward and evenly distributed to the condensation area. Since the condensation airflow group is away from the high-speed flow of the intake airflow, the airflow temperature gradient and dew point conditions in the condensation area are easier to maintain stability, thereby greatly improving the condensation efficiency. In some feasible embodiments of the present invention, a plurality of baffles can be provided on the guide plate 50 to continue to divide the upper condensation area into a plurality of small separation spaces. The discharged air is guided along the guide plate 50 and enters each separation space, and regional cooling is performed in each separation space.

[0067] In addition, in order to further improve the stability of the gathered airflow, a partition is provided between the guide plate 50 and the air outlet 30. The partition plans the airflow distribution in the condensation area, ensures that the condensation airflow is controlled, and improves the condensation efficiency. The partition blocks the direct connection between the condensation area and the air outlet 30, and prevents the suction effect of the air outlet 30 from directly disturbing the airflow distribution in the condensation area. Under the guidance of the partition, the condensation airflow flows in an orderly manner from the bottom gap or the outlet provided at the bottom to the air outlet 30, maintaining the stability of the airflow. It is understandable that the condensed water formed after the airflow is cooled by the refrigeration unit 40 drips onto the guide plate 50, and flows along the inclined guide plate 50 from the bottom gap of the partition or the outlet provided at the bottom to the bottom of the shell 10.

[0068] The partition is designed to make the airflow in the condensation area more controlled, and the gathered condensation airflow will not disperse due to the interference of the upper and lower flows, forming a relatively closed condensation environment, which helps the water vapor to fully contact the refrigeration unit 40. The condensed airflow can only flow from the gap at the bottom of the partition to the air outlet 30, preventing the airflow from passing through the condensation area in a straight line and disrupting the airflow distribution. By clearly planning the exhaust path of the airflow, the stability of the gathered airflow is further enhanced.

[0069] In summary, it can be concluded that the exhaust fan 20 continuously discharges external air into the bottom area of ​​the shell 10, and the guide plate 50 guides the airflow to the upper space to avoid directly impacting the condensation area where the refrigeration unit 40 is located, and forms a concentrated airflow group in the upper condensation area. The partition limits the flow range of the airflow group, effectively prolonging the residence time of the airflow in the condensation area, so that the water vapor in the air can be fully condensed, reducing the discharge of uncondensed water vapor, so that it remains concentrated and stable in the condensation area. The condensation airflow group gathers in the condensation area, and the semiconductor refrigeration unit 40 cools the airflow to below the dew point. The water vapor in the air condenses into condensed water, and because of the separation effect of the guide plate 50, the condensation airflow will not be disturbed by the exhaust fan 20 The air after condensation flows to the air outlet 30 through the gap at the bottom of the partition and is discharged from the shell 10. Taken together, the concentrated airflow group design reduces energy waste, allowing the refrigeration unit 40 to use resources more efficiently for cooling.

[0070] In addition, the inventors have discovered that the oxygen content in the condensed water formed by the air cooled by the refrigeration unit 40 is greatly reduced after being placed for a period of time, which is not conducive to watering flowers. Therefore, in some feasible embodiments of the invention, a plurality of small holes are dug on the surface of the guide plate 50 for receiving the dripping condensed water. When the circulating air flow passes through these small holes, tiny vortices or jets are formed to disturb the gas. The gas disturbance increases the contact frequency and contact area between the oxygen in the air and the dripping condensed water droplets, thereby enhancing the dissolved oxygen in the condensed water.

[0071] According to Henry's law, the concentration of gas dissolved in liquid is proportional to the partial pressure in the gas phase, that is, the mass transfer rate is determined by the contact area and contact time between the gas and the liquid. By providing a porous structure on the guide plate 50, that is, digging a plurality of small holes on the surface of the guide plate 50 that receives the condensed water, the porous structure can disturb the airflow, increase the contact frequency and effective surface area between the water droplets and oxygen, and improve the gas mass transfer efficiency. In addition, tiny eddies will be generated on the surface of the porous structure. When the gas flows through the guide plate 50, the flow obstruction formed by the holes can induce local turbulence, and the turbulence increases the mixing rate between the gas and the water droplets. That is to say, when the dripping condensed water flows through these small hole areas, the turbulence formed in the small hole areas promotes the mixed absorption of the water droplets and oxygen. Regarding the aperture of the small holes, it is necessary to ensure that the size is moderate to prevent the disturbance effect from being reduced due to the large size, and to prevent the resistance from being increased due to the small size.

[0072] Regarding the refrigeration unit 40, it is necessary to ensure its positional relationship with the formed concentrated circulating airflow group. The best situation is that one refrigeration unit 40 is directly above a formed concentrated circulating airflow group to ensure the condensation efficiency.

[0073] For details, please refer to Figure 2 The refrigeration unit 40 includes a condensing fin 401 , a semiconductor refrigeration fin 402 , a heat sink 403 and a heat dissipation fan 404 which are arranged in sequence from the inside of the shell 10 to the outside.

[0074] Among them, the condensing fins 401 are directly in contact with the air flow of the circulating air flow group inside the shell 10 and provide a cooling surface for it. When the air flows through the condensing fins 401, the water vapor condenses into water droplets when encountering the low-temperature surface. These condensed water droplets flow into the water collection area through gravity, thereby realizing water collection.

[0075] When the semiconductor refrigeration chip 402 is powered on, a thermoelectric effect is generated, and the temperature of the cold side is lowered to keep the condensing fin 401 below the dew point. The semiconductor refrigeration chip 402 has two sides, the cold side directly contacts the condensing fin 401 to provide cooling, and the hot side is connected to the heat sink 403.

[0076] The heat sink 403 is connected to the hot side of the semiconductor cooling chip 402 and is responsible for dissipating the excess heat generated during the cooling process. Since the accumulation of heat will affect the efficiency of the semiconductor cooling, the heat sink 403 is designed to be located outside the housing 10 to release the heat into the air more quickly.

[0077] The cooling fan 404 is installed outside the housing 10 and works with the heat sink 403 to enhance the heat dissipation effect. The cooling fan 404 accelerates the heat dissipation of the heat sink 403 by forcing air flow, ensuring that the semiconductor refrigeration plate 402 maintains a sufficiently low cold side temperature to continuously condense moisture.

[0078] refer to Figure 5 , a solar panel 80 is provided, which converts sunlight into electrical energy to power the refrigeration unit 40 and the exhaust fan in the irrigation device. When the refrigeration fin is powered on, the cold side cools down rapidly and contacts the condensing fins 401, so that the fin temperature drops below the dew point of the air. The water vapor in the air forms condensed water droplets on the surface of the condensing fins 401. On the hot side of the refrigeration fin, the cooperation of the heat sink 403 and the cooling fan 404 can effectively discharge excess heat and prevent heat reflux from affecting the condensation efficiency. Water vapor continuously condenses on the condensing fins 401, and after forming water droplets, it enters the collection system to achieve the purpose of air water extraction. In addition, the solar panel 80 also provides continuous power supply for other electrical equipment in the device.

[0079] In summary, the irrigation device provided in the embodiment of the present invention uses the solar panel 80 to provide clean energy and ensures an efficient cooling process under solar conditions. The heat sink 403 and the heat dissipation fan 404 cooperate to improve the heat dissipation efficiency, prevent the influence of heat accumulation on the condensation process, and ensure long-term stable operation. In addition, the irrigation device uses solar energy to generate electricity, avoids dependence on the power grid, is suitable for unattended environments, and the condensing fins 401 and the heat sink 403 have simple structures and high durability.

[0080] Among them, the above-mentioned condensing fins 401 can be made of high thermal conductivity materials such as aluminum or copper alloy to improve the condensation efficiency. Other materials such as stainless steel coated with high thermal conductivity coatings can also be used to enhance the condensation effect. The structure of the condensing fins 401 can adopt various shapes such as honeycomb and corrugated to increase the surface area and further improve the condensation efficiency. A hydrophobic coating can also be added to the surface of the fins to facilitate the rapid flow of condensed water and reduce water accumulation.

[0081] The material of the semiconductor cooling sheet 402 may be, but is not limited to, bismuth telluride, gallium nitride, etc., to meet different temperature difference requirements. In addition, a double-layer or multi-layer cooling sheet stack can be used to obtain a lower temperature.

[0082] The heat sink 403 may be made of, but not limited to, copper, aluminum, and nickel-plated materials, which have good thermal conductivity and are more durable after anti-oxidation treatment. In addition, the shape of the heat sink 403 may adopt a dense fin design, a tower fin structure, etc. to increase the heat dissipation area, or a hollow or microporous structure to optimize air circulation and enhance heat dissipation.

[0083] The cooling fan 404 may be, but is not limited to, a brushless DC fan, a high static pressure fan, etc. Fans of different powers and air volumes may be selected to meet different cooling requirements and airflow conditions.

[0084] On this basis, the inventors also considered that in cold environments, heating elements can be added to prevent condensed water from freezing on the fins to maintain continuous condensation. In addition, a filter is added at the air inlet to prevent dust or particulate matter from entering the condensing unit, keeping the device clean and running efficiently.

[0085] In some scenarios, traditional irrigation devices use timers to supply water at predetermined times. This method is suitable for situations where the plant's water demand is relatively stable. For some ornamental plants that have higher water requirements, the timed watering method may cause problems of excessive or insufficient irrigation for plants and flowers in different growth periods.

[0086] To this end, in some embodiments of the present invention, an irrigation device that can irrigate on demand is provided.

[0087] For details, please refer to Figure 4 and Figure 5 The bottom of the shell 10 is connected to a collecting box 60, which is used to collect and store condensed water dripping from the condensing fins 401. A liquid level sensor 601 is provided in the collecting box 60. The liquid level sensor 601 monitors the condensed water level in the collecting box 60 in real time and determines the change of the water level. The liquid level sensor 601 is connected to each exhaust fan 20 and the semiconductor cooling plate 402 and the cooling fan 404 in each refrigeration unit 40. The liquid level sensor 601 is configured to control the start and stop of each component by setting the upper and lower limit liquid level values. Specifically, refer to Figure 5 The set lower limit of the liquid level is la, and the upper limit of the liquid level is Lb. When the liquid level of the condensed water is lower than the lower limit la, the refrigeration and fan system is started to produce condensed water; when the liquid level reaches the upper limit Lb, the system stops working to prevent excessive water accumulation.

[0088] More specifically, when the liquid level sensor 601 detects that the condensed water level collected in the collecting box 60 is lower than the set lower limit liquid level value, the exhaust fan 20 is started to transport air to the inside of the shell 10. In this way, air flows into the condensation area, and the heat is taken away by the air flow, which helps to accelerate the condensation process. The semiconductor refrigeration sheet 402 is started, and the solar energy is converted into electrical energy to reduce the surface temperature of the condensation fin 401 to below the dew point. In this way, the water vapor in the air will form condensed water on the condensation fin 401. The cooling fan 404 starts to work, helping the heat sink 403 to discharge heat out of the shell 10, avoiding overheating of the refrigeration unit 40 and maintaining efficient operation.

[0089] During the condensation process, when the liquid level sensor 601 detects that the collected condensed water level reaches the set upper limit level value again, it automatically triggers to stop working, turn off the exhaust fan 20, stop the operation of the semiconductor cooling plate 402, and turn off the heat dissipation fan 404. This control mechanism effectively prevents the over-operation of the condensation system and avoids the accumulation of excessive condensed water.

[0090] It is understandable that through real-time monitoring of the liquid level sensor 601, the entire condensation water extraction process can be automatically adjusted to ensure that the device starts when needed and automatically stops after reaching a certain water level, avoiding unnecessary energy consumption. The combination of solar semiconductor technology and intelligent liquid level control system can efficiently extract moisture from the air without human intervention. The combination of the liquid level sensor 601 and the control system provides precise water volume control to ensure that the condensed water in the header 60 remains within a set reasonable range.

[0091] This design ensures efficient operation of the equipment and rational management of water resources through the linkage of liquid level control and refrigeration system, while also reducing the need for human intervention and providing an intelligent, energy-saving and automatic flower irrigation device.

[0092] Regarding how to use the collected condensed water to accurately irrigate plants and flowers, in some feasible embodiments of the present invention, please refer to Figure 5 The water outlet provided at the bottom of the header box 60 is connected to the water outlet pipe 70, ensuring that the condensed water collected from the header box 60 can be transported to the root area of ​​the plants and flowers through the water outlet for irrigation. An adjustable valve 702 is provided at the water outlet to control the opening of the water flow and adjust the water volume. The opening of the valve 702 is precisely adjusted according to the detection result of the soil moisture, thereby realizing accurate water volume control.

[0093] Specifically, a humidity sensor 701 is provided at the end of the water outlet pipe 70 for probing into the soil where the plants and flowers are planted. The humidity sensor 701 is used to monitor the soil humidity in real time. When the soil humidity is lower than a preset threshold, the humidity sensor 701 will trigger the device to start the irrigation function; when the soil humidity reaches the set threshold, the device will automatically stop supplying water to avoid over-irrigation.

[0094] It is understandable that the water outlet of the above-mentioned collecting box 60 can be connected to multiple water outlet pipes 70 or connected to drip irrigation equipment, so that one irrigation device can irrigate multiple plants by simply adjusting the soil moisture setting threshold corresponding to different plants.

[0095] More specifically, the difference between the soil moisture detected by the humidity sensor 701 and the preset threshold value is used as the basis for controlling the opening of the valve 702. The larger the difference, the larger the opening of the valve 702, and the more water flows into the soil; the smaller the difference, the smaller the opening of the valve 702, and the less water flows into the soil, until the soil moisture reaches the set ideal state.

[0096] The adjustable valve 702 adjusts the water flow according to the feedback from the humidity sensor 701. If the soil is too dry, the humidity sensor 701 will detect a large humidity difference (i.e., lower than the set threshold), and the valve 702 will open to allow more condensed water to flow into the soil; on the contrary, if the soil humidity is close to or reaches the set value, the valve 702 will be opened less or even closed to stop irrigation.

[0097] This design based on humidity difference control can accurately adjust the amount of water. By precisely controlling irrigation, soil moisture is kept within the optimal range, promoting healthy plant growth and avoiding plant health problems (such as root rot or drought) caused by excessive or insufficient irrigation. The irrigation device can also be adjusted according to the humidity requirements of different plants and adapt to a variety of plants and flowers. The device can automatically adjust the water flow to maintain the rationality of irrigation.

[0098] The valve 702 may be, but is not limited to, an electric control valve, a solenoid valve, a proportional valve, and a servo valve. The selection of the valve 702 depends on factors such as the scale of the device, the control accuracy requirements, and the budget, and is not specifically limited in the embodiment of the present invention.

[0099] In addition, during the condensation operation, the heat preservation condition has a significant impact on the air temperature in the housing 10 and the temperature of the condensation fins 401, thereby affecting the condensation efficiency. Figure 7 and Figure 8 As shown, without insulation, the air temperature in the shell 10 is significantly affected by the outside air temperature and will change with the external temperature fluctuations, especially during the day when solar radiation may cause the outside temperature to be higher, and the shell 10 itself cannot effectively maintain a low temperature. At this time, the air temperature in the shell 10 is higher, and the condensing fins 401 are affected by the increase in temperature, so that the temperature difference between the condensing fins 401 and the air is smaller, resulting in a lower efficiency in the formation of condensed water. In addition, the increase in the volume of the shell 10 increases the impact of this temperature.

[0100] Due to the lack of thermal insulation, the surface temperature of the condensing fins 401 will be affected by the fluctuation of the external ambient temperature. When the temperature difference between day and night is large, the temperature of the fins will also change significantly, which makes the condensation process unstable and the condensation efficiency low.

[0101] Under the condition of heat preservation, the influence of the outside temperature on the temperature inside the housing 10 is reduced, the low temperature environment inside the housing 10 is maintained, and the invasion of external heat is avoided. Due to the heat preservation effect of the housing 10, the surface temperature of the condensing fins 401 is relatively stable and lower than the dew point temperature of the air inside the housing 10, ensuring that the water vapor in the air condenses into water droplets on the fins. This stable temperature difference promotes the collection of condensed water and significantly improves the condensation efficiency.

[0102] The temperature of the small-volume shell 10 is adjusted faster and the temperature difference changes more. Even with the insulation layer, the cooling and heating speed of the air is relatively fast, which may cause fluctuations in the condensation efficiency. However, the insulation material still helps to reduce such fluctuations and stabilize the temperature inside the shell 10 at a lower level. The large-volume shell 10 has a slower temperature change due to its larger heat capacity, but it is also more susceptible to the external ambient temperature. Under the action of the insulation layer, the large-volume shell 10 can effectively maintain the internal temperature and reduce the impact of external temperature fluctuations on the condensation effect. Therefore, the large-volume shell 10 can usually achieve a more stable condensation effect under insulation conditions.

[0103] In summary, in order to ensure the condensation efficiency, the shell 10 uses a heat-insulating material or a heat-insulating layer is provided on the outside of the shell 10. The heat-insulating material may be, but is not limited to, polyurethane foam, glass wool, polystyrene foam (EPS), etc. These materials have good thermal insulation and can effectively reduce the impact of the external temperature on the inside of the shell 10. In addition, the heat-insulating material may evenly cover the entire shell 10, or only cover the side walls and bottom of the shell 10. The thickness of the heat-insulating layer and the selection of the material should be changed according to the range of the external ambient temperature, the volume of the shell 10, and the condensation efficiency requirements, and are not specifically limited in the embodiments of the present method.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. An unattended solar semiconductor air watering flower irrigation device, comprising a solar panel (80), characterized in that: Also includes: Housing (10); a circulation device, located on the housing (10) and used to discharge air into the interior of the housing (10); A flow guide device, arranged inside the shell (10), used for guiding the exhausted air to form a plurality of concentrated circulating airflow groups inside the shell (10); A refrigeration unit (40) is configured to be powered by the solar panel (80) to drive a semiconductor refrigerator in the refrigeration unit (40), wherein a refrigeration unit (40) is provided on the housing (10) corresponding to each area where the concentrated circulating airflow group is located, and the refrigeration unit (40) is used to cool the air of the circulating airflow group in the corresponding area to below the dew point; a collecting box (60), connected to the bottom of the housing (10) and used for collecting condensed water; and The water outlet pipe (70) is in communication with the collecting box (60) and leads to the flower soil.

2. The unattended solar semiconductor air watering flower irrigation device according to claim 1 is characterized in that: The shell (10) is hemispherical, and the circulation device comprises a plurality of exhaust fans (20) evenly distributed on the arc-shaped side wall of the shell (10), and the exhaust fans (20) are driven by the solar cell panel (80) and are used to exhaust air into the interior of the shell (10); A plurality of air outlets (30) are arranged on the plane side wall of the shell (10), and the refrigeration unit (40) is located on the plane side wall of the shell (10).

3. The unattended solar semiconductor air watering flower irrigation device according to claim 2 is characterized in that: The flow guide device comprises a flow guide plate (50), and the flow guide plate (50) is used to divide the interior of the shell (10) into a plurality of separated spaces, and each of the separated spaces corresponds to a refrigeration unit (40); When the refrigeration unit (40) and the exhaust fan (20) are started, the guide plate (50) guides the exhausted air to form a concentrated circulating airflow group in each of the separated spaces; Each refrigeration unit (40) condenses air moisture in the circulating airflow in the corresponding separated space into condensed water, and the guide plate (50) receives the falling condensed water and flows it to the collecting box (60).

4. The unattended solar semiconductor air watering flower irrigation device according to claim 3 is characterized in that: The refrigeration unit (40) comprises condensing fins (401), semiconductor refrigeration fins (402), heat sinks (403) and a heat dissipation fan (404) which are arranged in sequence from the inside of the housing (10) to the outside, wherein: The condensing fin (401) is connected to the semiconductor refrigeration fin (402), and the condensing fin (401) is used to provide a cooling surface for the gathered circulating airflow group, so that the moisture in the air condenses into condensed water droplets on the surface of the condensing fin (401); The semiconductor refrigeration sheet (402) cools down one side of the condensation fin (401) providing a cooling surface to below the dew point; The heat sink (403) is located outside the housing (10), and the heat sink (403) is configured to dissipate heat generated by the semiconductor cooling plate (402) when it is working into the air; The heat dissipation fan (404) is located outside the housing (10), and the heat dissipation fan (404) is configured to assist the heat sink (403) in discharging heat outside the housing (10).

5. The unattended solar semiconductor air watering flower irrigation device according to claim 4 is characterized in that: A valve (702) with an adjustable valve opening is provided at the connection point between the collecting box (60) and the water outlet pipe (70); A humidity sensor (701) is provided at the end of the water outlet pipe (70) away from the valve (702), and the humidity sensor (701) is used to monitor the humidity of the flower soil. The humidity sensor (701) is configured such that the difference between the soil humidity detected by the humidity sensor (701) and a preset threshold value is used to control the valve opening of the valve (702).

6. The unattended solar semiconductor air watering flower irrigation device according to claim 5, characterized in that: A detection unit for detecting the condensed water capacity is arranged in the collecting box (60), and the detection unit comprises a liquid level sensor (601). The liquid level sensor (601) is used to detect the liquid level of the condensed water in real time. The liquid level sensor (601) is configured to control the start and stop of each of the exhaust fans (20) and the refrigeration unit (40) when the difference between the liquid level value detected by the liquid level sensor and a preset liquid level threshold is used; specifically: When the liquid level detected by the liquid level sensor (601) is lower than a set lower limit liquid level value, the exhaust fan (20) is triggered to start working to discharge air into the shell (10), the semiconductor refrigeration sheet (402) is controlled to start working to cool the condensing fins (401) to below the dew point, thereby condensing moisture in the air in the shell (10), and the heat dissipation fan (404) is controlled to cooperate with the heat dissipation sheet (403) to start heat dissipation; When the liquid level sensor (601) detects again that the condensed water level has reached the set upper limit liquid level value, it triggers the semiconductor refrigeration plate (402) to stop working, and turns off the heat dissipation fan (404) and the exhaust fan (20).

7. The unattended solar semiconductor air watering flower irrigation device according to claim 1, characterized in that: The shell (10) is made of heat-insulating material or a heat-insulating layer is provided on the outside of the shell (10).

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