RU206336U1 - Plant irradiation device - Google Patents

Abstract

The utility model relates to lighting engineering, namely to irradiation devices intended for artificial illumination of plants, in particular in closed ground, with a luminous flux with a changing spectrum, aimed at stimulating plant growth, increasing crop yields. The device for irradiating plants contains a housing, two boards with LED groups located on them, protective glass, and cooling radiators. Moreover, the side and top walls of the case are equipped with ventilation holes, and the LED groups are made in the form of LED strips of red, orange, blue and UV spectrum of optical radiation, which are located along the width of the luminaire with asymmetric alternation on two boards, the groups of LEDs are connected to individual power sources in the form controlled drivers with a common control unit. The technical result of the claimed utility model is to increase the operational reliability of the device for irradiation of plants, to ensure uniform irradiation of plants and to ensure regulation of the spectral composition of optical radiation. 4 ill.

Description

The utility model relates to lighting engineering, namely to irradiation devices intended for artificial illumination of plants, in particular in closed ground, with a luminous flux with a changing spectrum, aimed at stimulating plant growth, increasing crop yields.

Known linear LED phyto-lamp [RU 2709465 C1 F21S 4/24 (2016.01), A01G 7/04 (2006.01), 12/18/2019], containing an aluminum body, an LED strip installed in the lower part of the aluminum body and a channel for forced water cooling.

The disadvantage of the device is the need for forced water cooling, which reduces the operational reliability of the device. In the device, all LEDs are connected to one power source in series, which does not allow separate control of LEDs with different spectrum.

Known LED lamp with erythemal irradiator [RU 163737 U1 F21S 8/00 (2006.01), Н05В 33/08 (2006.01), 08/10/2016], containing an emitter with LED modules in the visible range and an emitter with an ultraviolet module, with a wavelength in the range from 280 nm to 400 nm, drivers of emitters of the visible and ultraviolet ranges and a directive controller with a control panel.

The disadvantage of the device is that the presence of two lines of LEDs limits the spectrum of optical radiation in the white and UV range, in addition, all LEDs are connected to one power source without the possibility of individual control of the radiation spectrum.

Known LED lamp for greenhouses [RU 178403 Ul A01G 7/04 (2006.01), 05.04.2018], consisting of placed in the casing and fixed on mounting strips, an optical unit, a convection-type cooling unit, two power supplies, a back box for switching electrical connections ...

The disadvantage of the luminaire is that the emission spectrum depends on the composition of the phosphor and does not make it possible to regulate the emission spectrum of the luminaire.

The prototype of the proposed device is a universal LED phyto-irradiator [RU 2744302 C1 A01G 9/24 (2006.01), 05.03.2021], consisting of groups of LEDs with an adjustable radiation spectrum of each group and a control unit for the intensity and spectral composition of radiation, which has a computer and a sensor.

The disadvantage of the device is the need for forced water cooling, which reduces the operational reliability of the device, in addition, the arrangement of LED strips along the length of the lamp reduces the uniformity of illumination when regulating the spectral composition due to the presence of wide dark zones of switched off LEDs.

The technical result of the claimed utility model is to increase the operational reliability of the device for irradiation of plants, to ensure uniform irradiation of plants and to ensure regulation of the spectral composition of optical radiation.

The claimed technical result is achieved by the fact that the claimed device for irradiating plants comprises a housing, two boards with LED groups located on them, protective glass, and cooling radiators. Moreover, the side and top walls of the case are equipped with ventilation holes, and the LED groups are made in the form of LED strips of red, orange, blue and UV spectrum of optical radiation, which are located along the width of the luminaire with asymmetric alternation on two boards, the groups of LEDs are connected to individual power sources in the form controlled drivers with a common control unit.

The essence of the utility model is illustrated by drawings, where:

fig. 1 is a general view of a device for irradiating plants;

fig. 2 is a vertical section of a device for irradiating plants;

fig. 3 - arrangement of LED groups on the boards of the device for irradiating plants;

fig. 4 - LED power supply circuit.

The plant irradiation device, as shown in FIG. 1 and FIG. 2, contains a housing 1 covering the internal elements of the lamp, in the side and upper walls of the housing there are ventilation holes 2 for air access to the cooling radiators 3. Two boards 4 with an aluminum base are attached to the radiators, on which LED groups 5 are located in the form of red LED strips , orange, blue and UV spectrum of optical radiation. The LEDs are protected from dust and moisture by a protective glass 6, hermetically fixed to the body 1.

FIG. 3 shows the arrangement of LED groups on the boards of the device for irradiating plants. LED groups are made in the form of LED strips, grouped according to the spectra of optical radiation of LEDs K - red 7, C - blue 8, O - orange 9, UV-ultraviolet 10. These strips are located across the width of the luminaire with asymmetric alternation on boards 4.

FIG. 4 shows the power supply circuit for the LEDs. The circuit consists of a control unit 11, individual power supplies of LED groups in the form of controlled drivers 12, 13, 14, 15, LED strips of red 7.1-7.n, blue 8.1-8.n, orange 9.1-9.n and UV 10.1- 10.n spectrum of optical radiation, where n is the number of series-connected tapes in each group, power supply 16.

The claimed device for irradiating plants operates as follows.

The device for irradiating plants is placed above the surface of the bed along it at the required height. Power to the controlled drivers 12-15, LED groups 7-10 and the control unit 11 is supplied from the power supply 16, which converts the alternating current of the network into direct current. Individual power supplies in the form of controlled drivers 12-15 power the LED groups of LED strips 7-10 and provide a change in the radiation intensity of each light group depending on the control signals received from the control unit 11 and the optimal mode of operation of the groups. Controlled drivers 12-15 work independently of each other, which makes it possible to create the required spectral composition of the luminaire radiation. As a result, the specified parameters are fed to the groups of LED strips 7-10, which create a combined luminous flux with phytobiological activity. Heat removal from the LEDs is carried out by means of radiators on which the LED boards are located.

Sources of information

1.RU 2709465 C1 F21S 4/24 (2016.01), A01G 7/04 (2006.01), 18.12.2019

2.RU 163737 U1 F21S 8/00 (2006.01), H05B 33/08 (2006.01), 10.08.2016

3. RU 178403 Ul A01G 7/04 (2006.01), 05.04.2018

4. RU 2744302 C1 A01G 9/24 (2006.01), 05.03.2021

Claims (1)

The device for irradiating a plant contains a housing, two boards with LED groups located on them, protective glass, cooling radiators, characterized in that the side and upper walls of the housing are equipped with ventilation holes, while the LED groups are made in the form of LED strips of red, orange, blue and ultraviolet spectrum of optical radiation, which are located across the width of the luminaire with asymmetric alternation on two boards, while the groups of LEDs are connected to individual power supplies in the form of controlled drivers with a common control unit.

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