Device for plant lighting


F21V13/08 - the elements being reflectors and filters

 

(57) Abstract:

The use of agriculture in the field of crop production in buildings protected ground. The inventive device consists of a source 1 of optical radiation, mounted on the flange 3. In the upper part 5 of the device and the base 8 is made of circular grooves 9, which are placed in the plate 10 forming the inner walls of the filter and the plate 11 forming the outer wall of the filter. Perform lateral longitudinal faces of the plates 11 inclined excludes plants direct light from the source of optical radiation through the gaps between the plates 11. The device can be used for lighting undersized and vysokostebelnyh plants by plants it respectively in the horizontal and vertical planes, while ensuring reliable cooling device due to convective heat transfer. In addition, the device is very convenient in use due to the possibility of its rapid disassembly to remove the dust on all surfaces of plates 10 and 11. 3 Il.

The invention relates to the cultivation of plants in artificial lighting conditions and can be used in agriculture the deposits, contains a source of light and heat filter with circulating water. However, the known device does not provide the possibility of effective use for lighting undersized and adult plants, as well as very difficult as a constructive, and in operational terms, as it involves the presence of water cooling.

It is also known a device for lighting plants containing a light source placed inside a heat filter, made in the form of a two-layer cylindrical vessel filled with a clear liquid. The specified device provides effective coverage of dwarf and tall plants through a system of optical fibers, however, the cooling device is provided with water, as in the above design. In addition, the system of optical fibers requires constant monitoring of dust, which is extremely inconvenient in operation.

An object of the invention is the provision of efficient lighting dwarf and tall plants due to the operation of the device both in vertical and in horizontal position, and cooling it in these polarisierte from the light source, dismantling and elimination of dust on all surfaces.

The technical problem is solved due to the fact that the outer and inner walls of the filter is made of plates of rectangular shape, mounted in circular grooves in the upper and lower parts of the device, while the plates constituting the outer wall of the filter made with bevels on the side longitudinal faces and installed with a clearance, the smaller the thickness of the plate multiplied by the cosine of the acute angle formed by the longitudinal and lateral frontal faces of the plate.

In Fig. 1 presents the proposed device, a General view of Fig.2 is a view along arrow a in Fig.1.

The device consists of a light source 1, fixed by means of the cap 2 on the flange 3 by bolting 4. The upper part 5 of the device is equipped with Windows 6 and by means of the pins 7 is connected with the base 8. In the upper part 5 and the base 8 is made of a circular groove 9, which houses made of silicate glass rectangular plate 10 forming the inner walls of the filter and is made of organic glass plate 11 forming the outer wall of the filter.

In Fig.2 shows the plates 10 and 11, and Taka through the gaps from the optical radiation source and providing a cooling filter.

In Fig.3 shows the relationship between the gap and the thickness b of the plate 11 and the bevel angle of the longitudinal side face 12.

Of the conditions to prevent direct light through the gap and < c x sin where is the angle formed by the front face plate 13 and the bevel 12 of the side longitudinal faces.

At the same time with x b x ctg

a< b cos

The device operates as follows.

When the lighting is low-growing plants device is installed in a horizontal position. The inner walls of the filter sucked the heat radiation of the light source. However due to the presence of gaps between the plates 10 and 11 provides an efficient cooling device due to the convective air flow. In other words, the heated air from the source 1 of light rises through the gaps in the walls of the filter, and from the bottom through the same gap to the light source 1 enters the cold air.

The outer wall of the filter, made of plexiglass, removes thermal radiation of the heated inner wall of the filter, increasing the use efficiency of plants physiologically active radiation. Performing with soskami 12 of the plate 11 forming the outer wall, exclude the possibility of direct trojstva for growing tall plants it can be installed directly between them. In this case, the cooling device will be provided for by the Convention of air through the window 6, located in the upper part 5 of the device.

If necessary, remove dust using screw connections 4 the filter is separated from the light source 1, removed plate 11, which provides fast and efficient removal of dust.

This ensures effective cooling of the unit when the horizontal and vertical use, and quickly remove any dirt on its surface.

DEVICE FOR LIGHTING PLANTS containing the source of optical radiation, placed in heat svecokarelian double-walled cylindrical housing, wherein the outer and inner side walls of the housing consists of a rectangular plate, the ends of which are located in the circular grooves made in the end walls of the casing, while the lateral longitudinal edges of any two adjacent plates of the outer wall of the body is inclined and placed with a gap whose width does not exceed the width of the projection of any of the mentioned faces on a plane passing through the nearest edges of the plates located on facing one of the parties is

 

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