Full-spectrum illumination device for plant seedling culture

Abstract

The invention provides a plant seedling raising full-spectrum illumination device which comprises a full-spectrum illumination lamp assembly, a control host assembly, a steering motor, a steering shaft, an extension tube, a telescopic rod and a connecting plate, and the full-spectrum illumination lamp assembly comprises a lampshade body, a full-spectrum light source disc, a sensor module and a diffusion plate. The full-spectrum light source disc is connected to the lower side of the interior of the lampshade body through screws. The sensor module is welded to the lower right side of the lampshade body. The device is reasonable in structural design, such as the application of a height and angle adjustable bracket, a reflecting cover and a diffusion plate, so that light can be uniformly irradiated to each corner of a plant seedling raising area. The plant growth difference caused by non-uniform illumination is avoided, and the consistency and stability of the whole seedling raising effect are improved. The device is suitable for seedling raising of various plants, and illumination regulation and control can be carried out on vegetables, flowers, fruits, traditional Chinese medicinal materials and the like according to specific growth requirements of the vegetables, the flowers, the fruits and the traditional Chinese medicinal materials.

Description

Technical Field

[0001] This invention belongs to the technical field of plant seedling equipment, and in particular relates to a full-spectrum light irradiation device for plant seedling cultivation. Background Technology

[0002] In the process of plant seedling cultivation, light is one of the key factors affecting plant growth and development. Natural light is constrained by various factors such as climate, season, geographical location, and planting site, making it uncontrollable and unstable. For example, in cloudy or rainy weather, during winter when daylight hours are short, or in planting sites with poor lighting conditions such as indoors or greenhouses, plants often cannot obtain sufficient and suitable light. This can lead to problems such as hindered photosynthesis, slow growth, and poor development in plants during their growth cycle due to insufficient light or poor light quality. Consequently, the quality of the harvested plants' effective components fluctuates greatly, making it difficult to guarantee stability and consistency, and thus failing to meet the needs of current large-scale development.

[0003] To address the deficiencies of natural light, artificial light sources are widely used in plant cultivation. Plant grow lights primarily mimic the principle of sunlight, providing supplemental lighting for plants during specific periods or completely replacing sunlight. With the development of photobiological intelligent control technology, the lighting methods used for plant growth are no longer singular. Different plants, or even the same plant at different growth stages, can be subject to different control measures and different spectral illumination. For example, during the seedling stage, to promote robust growth, the proportion of blue light is increased.

[0004] Relatively stable artificial light sources can prevent significant fluctuations in the quality of harvested plant active ingredients due to climate and planting location influences during the plant's growth cycle. This inconsistency and inability to guarantee stability and consistency fails to meet the needs of current large-scale development. Therefore, with the development of large-scale and industrialized plant cultivation, obtaining high-quality plant active ingredients and developing large-scale planting techniques have become urgent needs.

[0005] However, existing artificial lighting devices have many shortcomings, such as a single spectrum, which cannot simulate the full spectrum of natural sunlight and cannot meet the needs of plants for multiple wavelengths of light at different growth stages; the light intensity and duration are difficult to control precisely, and cannot provide a personalized lighting environment according to the actual growth status of the plants; the unreasonable structural design of the device leads to uneven lighting, and some plants cannot be fully irradiated, affecting the overall seedling effect, etc.

[0006] Therefore, it is essential to invent a full-spectrum light source for plant seedling cultivation. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides a full-spectrum illumination device for plant seedling cultivation. This device can precisely control the intensity, duration, and spectral composition of light by simulating the full spectrum of natural sunlight. This solves the problem of large fluctuations in the quality of effective plant components and the inability to meet the needs of large-scale development caused by unstable light and incomplete spectrum in existing plant seedling cultivation processes.

[0008] A full-spectrum lighting device for plant seedling cultivation includes a full-spectrum lighting assembly, a control unit assembly, a steering motor, a steering shaft, an extension tube, a telescopic rod, and a connecting plate.

[0009] The full-spectrum lighting assembly includes a lampshade body, a full-spectrum light source disk, a sensor module, and a diffuser plate. The full-spectrum light source disk is screwed to the lower inner side of the lampshade body; the sensor module is welded to the lower right side of the lampshade body; and the diffuser plate is screwed to the three lower sides of the lampshade body.

[0010] The steering shaft coupling is connected to the output end of the steering motor; the lower end of the extension tube is bolted to the front and rear sides of the lamp cover body; the upper end of the extension tube is threaded to the output end of the telescopic rod; the connecting plate is screwed to the upper end of the telescopic rod; the connecting plate is sleeved on the outer surface of the steering shaft and fixed with bolts.

[0011] Preferably, a brushless DC fan is screwed to the upper interior of the lampshade body, and a heat dissipation fin is screwed to the lower interior of the lampshade body. The heat dissipation fin is located below the brushless DC fan and above the full-spectrum light source disk.

[0012] Preferably, the control host assembly includes a human-machine interface housing, a touch screen, a main controller, and a multi-channel constant current drive power supply. The touch screen is screwed to the upper front middle position of the human-machine interface housing; the main controller is screwed to the middle internal position of the human-machine interface housing; and the multi-channel constant current drive power supply is screwed to the lower left internal position of the human-machine interface housing.

[0013] Preferably, a USB communication interface is embedded in the lower right side of the human-computer interaction housing; multiple USB communication interfaces are provided.

[0014] Preferably, a retaining ring is welded to the upper end of the connecting plate.

[0015] Preferably, an LED lamp array is welded to the lower side of the full-spectrum light source disk. The LED lamp array is a combination of light-emitting diodes (LEDs), consisting of one or more of red LEDs, blue LEDs, green LEDs, purple LEDs, infrared LEDs, and ultraviolet LEDs to form a full spectrum.

[0016] Preferably, the functional wavelengths of the LED tube matrix include: a first spectrum, a second spectrum, a third spectrum, and a fourth spectrum. The wavelength range of the second spectrum is 410–485 nm; the wavelength range of the second spectrum is 485–625 nm; the peak wavelength of the first spectrum is between 450 nm and 5 nm; the peak wavelength of the second spectrum is between 585 nm and 10 nm; and the peak wavelength of the third spectrum is between 660 nm and 5 nm.

[0017] Preferably, each array of the LED tube matrix can be independently grouped and controlled.

[0018] Preferably, the human-computer interaction interface of the touch screen can be a touch screen or connected to a mobile APP for selecting and customizing light recipes and setting parameters; the main controller 23 can be a microprocessor unit at its core, pre-store various standard plant seedling light recipes (such as spectral ratio, intensity, photoperiod), and support Wi-Fi, Bluetooth or ZigBee for accessing an IoT platform to achieve remote monitoring and cluster control; the multi-channel constant current drive power supply provides stable, flicker-free drive current for each array of the LED tube matrix.

[0019] Preferably, the sensor module includes a spectral sensor, a temperature sensor, and an optional environmental sensor.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The full-spectrum light source disk and LED lamp matrix configuration described in this invention facilitates the provision of full-spectrum illumination, simulating the spectral composition of natural sunlight. This allows for the provision of "customized light formulas" tailored to specific growth stages of particular plant varieties, meeting the plant's needs for various wavelengths of light at different growth stages. This promotes photosynthesis, growth, development, and metabolism, thereby improving seedling quality and fundamentally ensuring the consistency and stability of the finished product's quality. It results in robust plant growth, vibrant green leaves, thick stems, well-developed root systems, and stable and consistent levels of active ingredients, laying a solid foundation for subsequent planting and production.

[0022] 2. The steering motor, steering shaft, extension tube and telescopic rod of the present invention facilitate the flexible adjustment of the position and angle of the lighting device according to the height of the plant seedling container and the light angle requirements of different plants, so as to ensure that the light can be vertically and evenly irradiated onto the plant surface.

[0023] 3. The brushless DC fan and heat sink configuration described in this invention are beneficial for enhancing air circulation, further reducing the internal temperature of the device, and ensuring the stable operation of the light source module and electronic components.

[0024] 4. The touchscreen, main controller, and multi-channel constant current drive power supply configuration described in this invention enable the light control system to precisely adjust light intensity, duration, and spectral composition according to the actual needs of the plants. Users can flexibly set light parameters based on plant species, growth stage, and environmental changes to create the most suitable light environment for the plants. This personalized light control method helps improve plant growth efficiency, shorten the seedling cycle, and reduce production costs.

[0025] 5. The sensor module described in this invention is designed to facilitate the monitoring and adjustment of environmental changes.

[0026] In summary, the invention's rational device structure design, such as the application of adjustable height and angle supports, reflectors, and diffusers, ensures that light can evenly illuminate every corner of the plant seedling area. This avoids differences in plant growth caused by uneven lighting, improving the consistency and stability of the overall seedling effect. It is suitable for the seedling cultivation of various plants, including vegetables, flowers, fruits, and medicinal herbs, allowing for light control according to their specific growth needs. Furthermore, it can be widely applied in various planting environments such as indoor seedling cultivation, greenhouse seedling cultivation, and plant factories, demonstrating excellent versatility and practicality. Using high-efficiency and energy-saving LEDs as the light source offers advantages over traditional lighting fixtures, including high photoelectric conversion efficiency and low energy consumption. While meeting the light requirements for plant seedling cultivation, it effectively reduces energy consumption, aligning with the development concept of energy conservation and environmental protection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention.

[0028] Figure 2 This is a bottom view structural diagram of the lampshade body of the present invention.

[0029] Figure 3 This is a schematic diagram of the internal structure of the lampshade body of the present invention.

[0030] Figure 4 This is a schematic diagram of the control host structure of the present invention.

[0031] Figure 5 This is a structural diagram of the application state of the present invention.

[0032] In the picture:

[0033] 1. Full-spectrum lighting assembly; 11. Lampshade body; 12. Full-spectrum light source panel; 121. LED tube matrix; 13. Sensor module; 14. Diffuser plate; 15. Brushless DC fan; 16. Heat sink fins; 2. Control host assembly; 21. Human-machine interface housing; 22. Touch screen; 23. Main controller; 24. Multi-channel constant current drive power supply; 3. Steering motor; 4. Steering shaft; 5. Extension tube; 6. Telescopic rod; 7. Connecting plate; 71. Fixing ring. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings:

[0035] Example:

[0036] As attached Figure 1 To be continued Figure 5 As shown, the present invention provides a full-spectrum lighting device for plant seedling cultivation, comprising a full-spectrum lighting assembly 1, a control host assembly 2, a steering motor 3, a steering shaft 4, an extension tube 5, a telescopic rod 6, and a connecting plate 7.

[0037] The full-spectrum lighting assembly 1 includes a lampshade body 11, a full-spectrum light source disk 12, a sensor module 13, and a diffuser plate 14. The full-spectrum light source disk 12 is screwed to the lower inner side of the lampshade body 11; the sensor module 13 is welded to the lower right side of the lampshade body 11; and the diffuser plate 14 is screwed to the three sides of the lower part of the lampshade body 11.

[0038] The steering shaft 4 is connected to the output end of the steering motor 3 via a coupling; the lower end of the extension tube 5 is bolted to the front and rear sides of the lamp cover body 11; the upper end of the extension tube 5 is threaded to the output end of the telescopic rod 6; the connecting plate 7 is screwed to the upper end of the telescopic rod 6; the connecting plate 7 is sleeved on the outer surface of the steering shaft 4 and fixed with bolts.

[0039] In the above implementation scheme, specifically, a brushless DC fan 15 is connected to the upper inner side of the lampshade body 11 by screws, and a heat dissipation fin 16 is connected to the lower inner side of the lampshade body 11 by screws. The heat dissipation fin 16 is located below the brushless DC fan 15 and above the full-spectrum light source disk 12.

[0040] In the above implementation scheme, specifically, the control host component 2 includes a human-machine interface housing 21, a touch screen 22, a main controller 23, and a multi-channel constant current drive power supply 24. The touch screen 22 is screwed to the middle of the upper front side of the human-machine interface housing 21; the main controller 23 is screwed to the middle of the inside of the human-machine interface housing 21; and the multi-channel constant current drive power supply 24 is screwed to the lower left side of the inside of the human-machine interface housing 21.

[0041] In the above implementation scheme, specifically, a USB communication interface is embedded in the lower right side of the human-computer interaction housing 21; multiple USB communication interfaces are provided.

[0042] In the above implementation scheme, specifically, a fixing ring 71 is welded to the upper end of the connecting plate 7.

[0043] In the above implementation scheme, specifically, an LED lamp matrix 121 is welded to the lower side of the full-spectrum light source disk 12. The LED lamp matrix 121 is a combination of light-emitting diodes (LEDs), which is formed by one or more combinations of red LEDs, blue LEDs, green LEDs, purple LEDs, infrared LEDs and ultraviolet LEDs.

[0044] In the above implementation scheme, specifically, the functional bands of the LED lamp array 121 include: a first spectrum, a second spectrum, a third spectrum, and a fourth spectrum. The band range of the second spectrum is 410–485 nm; the band range of the second spectrum is 485–625 nm; the peak wavelength of the first spectrum is between 450 nm and 5 nm; the peak wavelength of the second spectrum is between 585 nm and 10 nm; and the peak wavelength of the third spectrum is between 660 nm and 5 nm.

[0045] In the above implementation scheme, specifically, each array of the LED tube matrix 121 can be independently grouped and controlled.

[0046] In the above implementation scheme, specifically, the human-computer interaction interface of the touch screen 22 can be a touch screen or connected to a mobile APP, used to select and customize the light formula and set parameters; the main controller 23 can be a microprocessor unit at its core, pre-store various standard plant seedling light formulas (such as spectral ratio, intensity, photoperiod), and support Wi-Fi, Bluetooth or ZigBee for accessing the Internet of Things platform to realize remote monitoring and cluster control; the multi-channel constant current drive power supply 24 provides stable and flicker-free drive current for each array of LED tube matrix 121.

[0047] In the above implementation scheme, specifically, the sensor module 13 includes a spectral sensor, a temperature sensor, and an optional environmental sensor.

[0048] The working process of this invention is as follows: The device is hung directly above the seedling bed via a fixing ring 71, and a steering motor 3 is fixed thereon. The user can select the type of crop to be planted (such as lettuce, tomato, or Dendrobium) and the growth stage (such as germination period, vegetative growth period) via a touch screen 22 or a mobile APP; and set the corresponding light parameters, calling the preset optimal light formula for that stage (e.g., blue light: red light = 1:4, intensity 200 μmol / m²).2 / s, 16 hours of sunlight per day).

[0049] According to the formula instructions, the main controller 23 controls the multi-channel constant current drive power supply 24 to drive the corresponding LED lamp array 121 to emit light with a specific current. After passing through the diffuser plate 14, the light is uniformly mixed and diffused, and evenly illuminates the seedling tray below.

[0050] During operation, sensor module 13 continuously monitors the illumination and feeds the data back to main controller 23. If the light intensity decreases or the spectrum drifts due to LED aging or any other reason, the main controller will immediately calculate the compensation value and fine-tune the drive current to ensure that the actual illumination parameters remain consistent with the preset formula. At the same time, temperature sensor monitors the lamp board temperature and intelligently adjusts the speed of brushless DC fan 15 to achieve a balance between quiet operation and heat dissipation.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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.

[0052] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A full-spectrum illumination device for plant seedling cultivation, characterized in that, The plant seedling full-spectrum lighting device includes a full-spectrum lighting assembly (1), a control host assembly (2), a steering motor (3), a steering shaft (4), an extension tube (5), a telescopic rod (6), and a connecting plate (7). The full-spectrum lighting assembly (1) includes a lampshade body (11), a full-spectrum light source disk (12), a sensor module (13), and a diffuser plate (14). The full-spectrum light source disk (12) is screwed to the lower inner side of the lampshade body (11); the sensor module (13) is welded to the lower right side of the lampshade body (11); and the diffuser plate (14) is screwed to the three sides of the lower part of the lampshade body (11). The steering shaft (4) is connected to the output end of the steering motor (3) by a coupling; the lower end of the extension tube (5) is bolted to the front and rear sides of the lamp cover body (11); the upper end of the extension tube (5) is threaded to the output end of the telescopic rod (6); the connecting plate (7) is screwed to the upper end of the telescopic rod (6); the connecting plate (7) is sleeved on the outer surface of the steering shaft (4) and fixed with bolts.

2. The plant seedling full-spectrum illumination device as described in claim 1, characterized in that, A brushless DC fan (15) is screwed to the upper inside of the lampshade body (11), and a heat dissipation fin (16) is screwed to the lower inside of the lampshade body (11). The heat dissipation fin (16) is located below the brushless DC fan (15) and above the full-spectrum light source disk (12).

3. The plant seedling full-spectrum illumination device as described in claim 1, characterized in that, The control host component (2) includes a human-machine interface housing (21), a touch screen (22), a main controller (23), and a multi-channel constant current drive power supply (24). The touch screen (22) is screwed to the middle of the upper front part of the human-machine interface housing (21); the main controller (23) is screwed to the middle of the inside of the human-machine interface housing (21); and the multi-channel constant current drive power supply (24) is screwed to the lower left side of the inside of the human-machine interface housing (21).

4. The plant seedling full-spectrum illumination device as described in claim 1, characterized in that, The lower right side of the human-computer interaction housing (21) is inlaid with a USB communication interface; multiple USB communication interfaces are provided.

5. The plant seedling full-spectrum illumination device as described in claim 1, characterized in that, A retaining ring (71) is welded to the upper end of the connecting plate (7).

6. The plant seedling full-spectrum illumination device as described in claim 1, characterized in that, The lower side of the full-spectrum light source disk (12) is welded with an LED lamp matrix (121). The LED lamp matrix (121) is a combination of light-emitting diodes (LEDs), which is formed by one or more combinations of red LEDs, blue LEDs, green LEDs, purple LEDs, infrared LEDs and ultraviolet LEDs.

7. The plant seedling full-spectrum illumination device as described in claim 1, characterized in that, The functional bands of the LED lamp array (121) include: a first spectrum, a second spectrum, a third spectrum, and a fourth spectrum. The band range of the second spectrum is 410–485 nm; the band range of the second spectrum is 485–625 nm; the peak wavelength of the first spectrum is between 450 nm and 5 nm; the peak wavelength of the second spectrum is between 585 nm and 10 nm; and the peak wavelength of the third spectrum is between 660 nm and 5 nm.

8. The plant seedling full-spectrum illumination device as described in claim 1, characterized in that, The human-computer interaction interface of the touch screen (22) can be a touch screen or connected to a mobile phone APP, used to select and customize the light formula and set parameters; the main controller (23) can be a microprocessor unit at its core, pre-store various standard plant seedling light formulas (such as spectral ratio, intensity, photoperiod), and support Wi-Fi, Bluetooth or ZigBee, for accessing the Internet of Things platform to realize remote monitoring and cluster control; the multi-channel constant current drive power supply (24) provides stable and flicker-free drive current for each array of LED tube matrix (121).

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