RU217148U1 - Plant Irradiation LED Device - Google Patents

Abstract

The utility model relates to the field of lighting engineering and concerns an LED device for irradiating plants. The device contains a housing, two boards with LED groups located on them, a protective glass, cooling radiators and fasteners connected to a device for adjusting the height of the suspension. Two boards with LEDs are placed in parallel. LED groups are connected to individual power sources in the form of controlled drivers with a common control unit and are made in the form of alternating two red ribbons, two blue ribbons, seven orange ribbons and one ultraviolet optical radiation spectrum ribbon located along the width of the lamp. In this case, the ribbons of the red, blue and ultraviolet spectrum alternate on the boards asymmetrically. The technical result consists in increasing the operational reliability, ensuring the uniformity of irradiation of plants and ensuring the adjustment of the spectral composition of optical radiation. 4 ill.

Description

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

A linear LED phytolamp is known [RU 2709465 C1 F21S 4/24 (2016.01), A01G 7/04 (2006.01), 12/18/2019] containing an aluminum housing, an LED strip installed in the lower part of the aluminum housing 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 the same power supply in series, which does not allow separately controlling LEDs with different spectra.

Known LED lamp with erythema irradiator [RU 163737 U1 F21S 8/00 (2006.01), H05 B 33/08 (2006.01), 10.08.2016], containing an emitter with LED modules in the visible range and an emitter with an ultraviolet range module, with a wavelength of range from 280 nm to 400 nm, drivers for 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 ranges, in addition, all the LEDs are connected to the same power source without the possibility of individual control of the emission spectrum.

Known LED lamp for greenhouses [RU 178403 U1 A01G 7/04 (2006.01), 04/05/2018], consisting of an optical unit placed in a casing and fixed on mounting strips, a convection-type cooling unit, two power supplies, a mounting box for switching electrical connections .

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

The prototype of the claimed device is a universal LED phytoirradiator [RU 2744302 C1 A01G 9/24 (2006.01), 03/05/2021], consisting of groups of LEDs with an adjustable emission spectrum of each group and a control unit for the intensity and spectral composition of the radiation, having a computer, 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 location of LED strips along the length of the lamp reduces the uniformity of illumination when adjusting the spectral composition due to the presence of wide dark zones of disabled LEDs.

The technical result of the claimed utility model is to increase the operational reliability of the LED device for irradiating plants, ensuring the uniformity of irradiation of plants and ensuring the adjustment of the spectral composition of optical radiation.

The claimed technical result is achieved by the fact that the claimed LED device for irradiating plants contains a housing, two boards with LED groups located on them, the LED groups are connected to individual power sources in the form of controlled drivers with a common control unit, protective glass, cooling radiators, mounts connected to suspension height adjustment device. Moreover, two boards are placed in parallel, and the LED groups are made in the form of alternating two red tapes, two blue tapes, seven orange tapes and one tape of the ultraviolet spectrum of optical radiation, located across the width of the lamp with asymmetric alternation on the boards of red, blue and ultraviolet spectrum tapes.

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

fig. 1 - general view of the LED device for irradiating plants;

fig. 2 - vertical section of the LED device for irradiating plants;

fig. 3 - the composition of the boards of the LED device for irradiating plants;

fig. 4 is a control circuit of an LED plant irradiation device.

An LED plant irradiation device as shown in FIG. 1 and FIG. 2, contains a housing 1 that covers 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, placed parallel to the device, on which LED groups 5 are located in the form of LED strips of red, orange, blue and UV spectrum of optical radiation. The LEDs are protected from dust and moisture by a protective glass 6 hermetically fixed on the housing 1. The housing 1 is equipped with fasteners 7 connected to the suspension height adjustment device 8.

In FIG. 3 shows the arrangement of LED arrays on two parallel boards of a plant irradiator. The LED groups are made in the form of alternating two tapes K - red 9, two tapes C - blue 10, seven tapes O - orange 11 and one tape UV - ultraviolet 12 of the optical radiation spectrum. These tapes are located along the width of the luminaire with asymmetric alternation on the boards of red 9, blue 10 and ultraviolet 12 spectrum tapes.

In FIG. 4 shows the control circuit of the LED device for irradiating plants. The circuit consists of a control unit 13, individual power supplies for LED groups in the form of controlled drivers 14, 15, 16, 17, LED strips red 9.1-9.n, blue 10.1-10.n, orange 11.1-1l.n and UV 12.1- 12.1n of the optical radiation spectrum, where n is the number of series-connected tapes in each group, power supply 18, height control unit 19.

The claimed LED device for irradiating plants works as follows.

The LED device for irradiating plants is placed above the surface of the bed along it, attaching the body 1 with the help of fasteners 7 to the suspension height adjustment device 8. the controlled drivers 14-17 and the control unit 13 are fed from the power supply unit 16, and the controlled drivers are powered by alternating voltage, and the control unit is supplied by a constant voltage. Individual power sources, in the form of controlled drivers 14-17, feed the LED groups of LED strips 9-12 with a given current value, provide a change in the radiation intensity of each light group depending on the control signals received from the control unit 13, and the optimal mode of operation of the groups. The heat generated by the working LED groups 5 is removed by means of cooling radiators 3, on which two boards with an aluminum base 4 are placed in parallel. Controlled drivers 14-17 operate independently of each other, which allows you to create the necessary spectral composition of the lamp radiation. As a result, the specified parameters are sent to the LED groups of LED strips 9-12, which create a combined luminous flux.

The device makes it possible to increase the operational reliability of the LED device for irradiating plants, to ensure the uniformity of irradiation of plants and to ensure the regulation of the spectral composition of optical radiation.

Information sources

1. RU 2709465 C1 F21S 4/24 (2016.01), A01G 7/04 (2006.01), 12/18/2019.

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

3. RU 178403 U1 A01G 7/04 (2006.01), 04/05/2018.

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

Claims (1)

SUBSTANCE: light-emitting diode device for irradiating plants, comprising a housing, two boards with LED groups located on them, groups of LEDs connected to individual power sources in the form of controlled drivers with a common control unit, protective glass, cooling radiators, mounts connected to a suspension height adjustment device, different the fact that two boards with LEDs are placed in parallel, while the LED groups are made in the form of alternating two ribbons of red, two blue ribbons, seven orange ribbons and one ribbon of the ultraviolet spectrum of optical radiation, located along the width of the lamp, while the ribbons are red, blue and ultraviolet spectra are interleaved on the boards asymmetrically.

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