CN203099468U - Annular LED light supplementation device for greenhouse cultivation canopies - Google Patents

Abstract

The utility model relates to a ring-shaped LED supplementary light device for facility cultivation canopies. The device includes a lamp housing, a heat dissipation member arranged in the lamp housing and a base plate in the shape of a ring wall. The outer surface of the base board is provided with red light and blue light LEDs. For the lamp bead, a lampshade is arranged on the outside of the substrate. The structure of the device is reasonable, and it can realize close-distance and horizontal all-round light supplementation between rows of canopies or inside the canopy.

Description

A ring-shaped LED light supplement device for facility cultivation canopy

technical field

The utility model belongs to the technical field of artificial light sources for plant cultivation, in particular to an annular LED supplementary light device for facility cultivation canopies.

Background technique

Facility horticulture is an important form of modern agriculture. It can carry out intensive cultivation and off-season production of vegetables, flowers, fruit trees and Chinese medicinal materials inside facilities (greenhouses, plant factories, plastic greenhouses, etc.), with high multiple cropping index, high yield and environmental factors. With the advantages of adjustable and annual production, it is the main production method to meet the needs of urban and rural residents for winter and spring vegetables and other horticultural products, and has an irreplaceable role. my country is a big country in the production of protected horticulture, and the cultivated area and output of protected horticulture rank first in the world. However, since the cultivation forms of protected horticulture in my country are mainly solar greenhouses and plastic greenhouses, the light inside the facilities is only about 70% of that outside the facilities. The frequent occurrence of adversity stress seriously restricts the growth and development and the formation of yield and quality of facility crops. In my country, continuous cloudy days caused by severe weather such as rain, snow, smog, etc. occur from time to time. The combination of low temperature and weak light often leads to crop yield reduction or even failure, and economic benefits cannot be guaranteed. Especially around metropolitan areas, the low transparency of the atmosphere caused by air pollution also exacerbates the occurrence and harm of cloudy days.

Artificial light supplement is an important technical means to ensure the high quality and high yield of protected gardening under the condition of low light and little light. However, traditional supplementary lights, such as high-pressure sodium lamps, have the defects of high energy consumption, low light efficiency, and a large difference between the spectrum and the photosynthesis requirements of plants, and it is difficult to ensure the efficient production of facility crops. LED is a semiconductor solid-state light source, which has the advantages of small size, light weight, energy saving and environmental protection, long life, and the spectrum can be adjusted according to the needs of plants. It has incomparable photoelectric advantages compared with traditional light sources. ideal light source. More importantly, the LED light source is a cold light source, which can be irradiated close to the surface of plant leaves, reducing the irradiation distance and improving the biological light effect.

At present, the LED artificial light source technology for plant cultivation mostly adopts ceiling lights. Due to the common problem of weak light in LED light sources, the supplementary light distance is greatly limited. In order to solve this problem, the utility model further improves the existing LED light source device for plant cultivation

Utility model content

Aiming at the above technical problems, the utility model provides a facility cultivation canopy annular LED light supplement device which is flexible and convenient to use and can realize sufficient light supplement for facilities cultivation plants.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A ring-shaped LED supplementary light device for facility cultivation canopies, characterized in that it includes a lamp housing, a heat sink disposed in the lamp housing, and an annular wall-shaped substrate, and the outer surface of the substrate is provided with red and blue LED lamp beads , the outer side of the substrate is provided with a lampshade.

Further, the surface of the annular wall of the base plate is one of the following forms: composed of a plurality of planes, composed of convex curved surfaces, composed of at least one flat surface and at least one convex curved surface.

Further, the heat dissipation element is arranged on the inner surface of the substrate, and the gaps therebetween are filled with a heat conducting material. Furthermore, the extension part of the heat dissipation element is saw-toothed.

Further, the material of the substrate is aluminum.

Further, the red and blue LED beads on the surface of the substrate are arranged in multiple parallel rows.

Further, the wavelengths of the red and blue LEDs are 620-700 nm and 420-500 nm respectively, and the light intensity ratio of the red and blue LEDs is 2-8:1.

Further, the lampshade is parallel to the surface of the substrate.

Further, the LED supplementary light device further includes a power cord connected to the LED lamp bead.

Further, a pendant, such as a suspension ring, is provided on the lamp housing for suspending the LED supplementary light device.

At present, the LED artificial light source technology for plant cultivation mostly adopts ceiling lights. Due to the common problem of weak light in LED light sources, the supplementary light distance is greatly limited, so the annular LED supplementary light in the crop canopy is an effective method to solve the photosynthesis of crops. The ring-shaped LED supplementary light device of the utility model can realize supplementary light in the canopy of facility crops, especially can realize short-distance horizontal omni-directional supplementary light between canopy rows or inside the canopy, and can also be realized by connecting multiple lamps in series. The upper and lower floors have a large vertical span and a large area to fill the light; according to the needs of different crops, the light intensity and wavelength of the red and blue LED beads can be adjusted.

The utility model is a practical and efficient artificial light supplement technology, which is flexible and convenient to use, and can fully supplement light to facility plants; not only reduces the number of lamps used, can fully supplement light to row plants, but also facilitates scale Intensive management has changed the traditional technology of using ceiling lights as the main supplementary light for plant cultivation in facility horticulture, and provided a new way for the application of LED light source devices in supplementary light for facility horticulture.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the annular LED supplementary light device in the embodiment.

Fig. 2 is a schematic diagram of LED lamp bead strips in the device shown in Fig. 1 .

FIG. 3 is a schematic diagram of the positional relationship between the heat sink and the substrate in the device shown in FIG. 1 .

FIG. 4 is an example diagram of the shape of the annular wall of the substrate in the device shown in FIG. 1 .

Among them, 1- lamp housing, 2- aluminum substrate, 3- LED lamp bead strip, 31- red LED lamp bead, 32- blue LED lamp bead, 4- hanging ring, 5- lampshade, 6- power cord, 7- Heat sink, 8- thermal grease.

Detailed ways

The utility model will be further described below through specific embodiments and in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of the overall structure of a ring-shaped LED supplementary light device for protected cultivation canopies in this embodiment. In this device, an aluminum base plate 2 is provided inside the lamp housing 1 (upper and lower cover plates). The aluminum base plate 2 has a ring-shaped wall, and multiple rows of LED lamp bead strips 3 are arranged on its surface in parallel, including red LED lamp beads 31. (shown as a solid point in FIG. 2 ), and a blue LED lamp bead 32 (shown as a hollow circle in FIG. 2 ). 6 in Figure 1 is the power cord connected to the LED lamp bead. A lampshade (protective cover) 5 is arranged on the outside of the aluminum substrate, and the lampshade is made of a material with high light transmittance, and the edge of the lampshade is connected with the edge of the lamp housing. Both ends of the lamp housing are provided with rings (ie pendants) 4 for hanging the LED supplementary light device. In this embodiment, the size of the entire lamp is: 300mm in length, 150mm in width, and 170mm in height.

In this embodiment, the LED supplementary light device also includes a heat sink 7, which is arranged on the inner surface of the aluminum substrate (the heat sink is not shown in Figure 1, please refer to Figure 3), and the heat sink is fixed on the lamp housing , The gap between the heat sink and the aluminum substrate is filled with thermally conductive silicone grease 8 and other thermally conductive materials. The positional relationship between the heat sink 7 and the aluminum base plate is shown in Figure 3, which can be seen as the top view of Figure 1, where the heat sink is arranged in a ring close to the aluminum base plate. The extension part of the heat sink can adopt a zigzag shape, that is, a structure including a plurality of heat sink teeth, so as to increase the heat dissipation area; for details, reference can be made to the structure of the heat sink of the LED lamp in the prior art, which will not be described in detail in the present invention. In this embodiment, the upper and lower surfaces of the lamp housing are used as heat dissipation surfaces, and the heat dissipation teeth of the heat dissipation element are in contact with the air to dissipate heat through the heat dissipation surfaces. Openings or slits can also be provided on the upper and lower sides of the lamp housing to facilitate heat dissipation.

In this embodiment, the red and blue LED lamp beads packaged on the aluminum substrate are arranged in parallel in three rows, as shown in Figure 2, the distance between the LED lamp beads is about 10mm, the ratio of the light intensity of the red and blue light is 8:1, and the red and blue light Blue LED light wavelengths are 680nm and 480nm respectively. The lampshade 3 is parallel to the surface of the annular aluminum substrate with red and blue LED lamp beads (that is, the shape and radian of the lampshade are consistent with the radian of the substrate), and the distance is 10mm, which is conducive to keeping the light effect of the LED light source unchanged.

In this embodiment, the aluminum substrate may be in the shape shown in FIG. 1 , the walls at both ends are arc-shaped, and the middle is two parallel planes, that is, the shape shown in FIG. 4( a ). However, in other embodiments, other annular wall surfaces may also be used, such as polygonal as shown in Fig. 4(b) and (c), ellipse as shown in Fig. 4(d), and the like. The utility model forms an annular wall-shaped light-emitting surface (short tube-shaped) through the base plate, so as to realize 360-degree supplementary light around the horizontal level. The light-emitting surface (annular wall) itself can be a plane or an outer convex surface, such as an arc surface, etc., in general , can be one of the following forms: composed of a plurality of planes, composed of convex curved surfaces, composed of at least one flat surface and at least one convex curved surface. In addition, the aluminum base plate can be integrated, or spliced or welded by a plurality of plates.

The above embodiments are only used to illustrate the technical solution of the utility model and not to limit it. Those skilled in the art can modify or equivalently replace the technical solution of the utility model without departing from the spirit and scope of the utility model. The scope of protection of the utility model should be based on the claims.

Claims (9)

1. a facility cultivation canopy annular LED light compensating apparatus is characterized in that, comprises lamp housing, is located at the radiating piece and the substrate of wall shape ringwise in the lamp housing, and the outer surface of this substrate is provided with ruddiness and blue LED lamp pearl, and this substrate outside is provided with lampshade.

2. facility cultivation canopy annular LED light compensating apparatus as claimed in claim 1, it is characterized in that the surface of the annular wall of described substrate is a kind of in the following form: constitute, constitute, constitute by the curved surface of at least one plane and at least one evagination by the curved surface of evagination by a plurality of planes.

3. facility cultivation canopy annular LED light compensating apparatus as claimed in claim 1, it is characterized in that: described radiating piece is located at the inner surface of described substrate, and fill with Heat Conduction Material in the slit therebetween.

4. facility cultivation canopy annular LED light compensating apparatus as claimed in claim 3, it is characterized in that: the epitaxial part of described radiating piece is a zigzag.

5. facility cultivation canopy annular LED light compensating apparatus as claimed in claim 1, it is characterized in that: the material of described substrate is an aluminium.

6. facility cultivation canopy annular LED light compensating apparatus as claimed in claim 1 is characterized in that: the ruddiness of described substrate surface is parallel many rows with the blue LED lamp pearl and is provided with.

7. as claim 1 or 6 described facility cultivation canopy annular LED light compensating apparatus, it is characterized in that: ruddiness and blue-ray LED optical wavelength are respectively 620 ~ 700nm and 420 ~ 500nm, and the light intensity ratio of ruddiness and blue-ray LED is 2 ~ 8:1.

8. facility cultivation canopy annular LED light compensating apparatus as claimed in claim 1 is characterized in that: described LED light compensating apparatus also comprises the power line that connects described LED lamp pearl.

9. facility cultivation canopy annular LED light compensating apparatus as claimed in claim 1 is characterized in that: be provided with suspension member on described lamp housing.

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