RU223102U1 - LED module - Google Patents

Abstract

The utility model relates to the field of lighting engineering, namely to lighting devices using LEDs, and can be used as an LED light source for industrial, household, street lighting, in particular for plant growing. The LED module contains an aluminum circuit board; at least four white LEDs located on an aluminum circuit board; at least one optical group lens located on an aluminum circuit board on top of the white LEDs; a group of LEDs with an emission spectrum in the range of 300-800 nm, located on an aluminum printed circuit board.

Description

The utility model relates to the field of lighting engineering, namely to lighting devices using LEDs, and can be used as an LED light source for industrial, household, street lighting, in particular for plant growing.

A phyto-LED module is known according to RF patent No. 186764 (publication date: 01/31/2019, IPC: A01G 7/04), which contains a group of LEDs with an emission spectrum in the range from 400 to 700 nm, a power supply, a varistor and a self-recovering fuse; in this case, the power supply includes: a diode bridge, a current stabilizer microcircuit, a current-setting resistor and a capacitor, and the phyto-LED module is made in the form of a printed circuit board with an aluminum base, on which LEDs, a varistor, a self-recovering fuse and all elements of the power supply are installed using automatic surface mounting.

The common features of the known and inventive modules are the presence of a group of LEDs and the implementation of the module in the form of a printed circuit board with an aluminum base.

The disadvantage of the known phyto-LED module is that the power supply elements are installed on the board itself, which does not allow placing a larger number of LEDs on the board, reducing the efficiency of the module (µmol/J), deteriorating the maintainability of the product because The power supply cannot be replaced separately.

An LED irradiator for plants is known according to RF patent No. 148495 (publication date: 12/10/2014, IPC: F21S 2/00, A01G 9/24), which contains LEDs and a power supply and control unit. The irradiator contains white LEDs of a cold shade, as well as red LEDs with a peak wavelength of 660...680 nm in an equal ratio in terms of radiation power with white LEDs, while the power supply and control unit is designed with the ability to separately regulate the radiation intensity of white and red LEDs.

Common features of the known and proposed solutions are the presence of white LEDs and red LEDs.

However, the known solution does not use a group optical lens, which allows distributing the luminous flux and protecting the LEDs from damage, and also does not use LEDs with an emission spectrum in the range of 710-730 nm (far red LEDs) and LEDs with an emission spectrum in the range of 360-400 nm (ultraviolet (UV) spectrum LEDs), which affects the process of growing plants, namely the duration and quality of cultivation.

The closest analogue (prototype) is the technical solution to RF patent No. 2575299 (publication date: 02/20/2016, IPC: F21S 2/00, F21S 13/00), which contains a radiator housing made of heat-conducting material with fins, two end covers, at least one light module located in the housing, at least one external power source, contains at least one monolithic translucent protective screen made of impact-resistant material with lenses covering the corresponding light module with independent sealing of two zones.

Common features of the known and claimed devices are the presence of a radiator, an external power source (power supply), a light module, and group lenses with LEDs.

However, the disadvantage of the known LED lamp is the lack of LEDs of different emission spectrums (different LEDs), which affects the process of growing plants, namely the quality and speed of ripening.

The technical problem of the proposed technical solution is the improvement of LED modules, intended, among other things, for growing plants.

The technical result is an increase in the productivity of growing plants (increased yield) through the use of LEDs of different emission spectrums and the design of the LED module (location of LEDs on a printed circuit board).

The technical result is achieved due to the fact that the LED module contains:

printed circuit board;

white LEDs located on the printed circuit board;

at least one optical group lens located on the printed circuit board on top of the white LEDs;

ultraviolet LEDs with an emission spectrum of 300-400 nm;

red LEDs with an emission spectrum of 630-680 nm;

far red LEDs with an emission spectrum of 710-800 nm.

This allows you to obtain a wide, universal combined spectrum of light for plants, increasing the quality and quantity of the harvest due to additional intensity in the red region of the spectrum. The use of white LEDs allows the use of a universal base spectrum with maximum efficiency for growing plants. The use of ultraviolet LEDs, the emission spectrum of which is 300-400 nm, allows, in the main spectrum, to stimulate rapid vegetation and growth of plant biomass, as well as increase the concentration of secondary metabolites in plants. The use of far red LEDs, the emission spectrum of which is 710-800 nm, makes it possible to enhance plant growth in height and stimulate an increase in leaf area. The use of red LEDs, the emission spectrum of which is 630-680 nm, can significantly improve plant photosynthesis. Thus, the LED module allows you to achieve maximum productivity of different types of plants in all phases of their growth.

The design of the module uses a unifying approach, which makes it possible to obtain a module with power and emission spectrum adapted for growing a specific crop. The result is achieved through the use of different types of LED modules with different LED compositions to obtain different spectra in the luminaire. LED modules are unified by type of connection and installation, which allows you to combine them into arbitrary combinations. The LED modules have mounts for secondary optics (group optical lens), which allows you to create different light scattering angles and focus the radiation of all LEDs on the plants.

When implementing the LED module, the circuit board may be an aluminum circuit board.

When implementing an LED module, the width of the printed circuit board can be in the range from 50 mm to 56 mm.

When implementing an LED module, the length of the printed circuit board can be in the range from 80 mm to 500 mm.

When implementing an LED module, the size of the group lens can be 50×50 mm. A group lens with a size of 49.9×49.9 mm can also be used, and the size error can be 0.1 mm.

The LED module can be mounted on the heatsink using screws. In this case, the cooling radiator can include from 1 to 5 such LED modules.

Attaching the LED module to the heatsink can be done using screw holes on the PCB.

The optical group lens can be secured to a printed circuit board using a screw hole located in the center of the lens. Accordingly, the board also has a hole for attaching an optical lens.

When implementing an LED module, the thickness of the printed circuit board can be 1.0-2.0 mm.

When implementing an LED module, the printed circuit board may additionally contain holes that are designed to allow the lenses to rotate by 90°. The optical lens has special feet for positioning into holes on the aluminum printed circuit board. This ability to rotate the lenses by 90° allows you to distribute the light flux in different directions.

To supply power, the LED module may contain board-to-board or board-to-wire connectors or contact pads for soldering wires.

LEDs of type STW7C12C-E0 (4000 K) can be used as white LEDs.

LEDs of type SZDR5A0C can be used as red LEDs. LEDs of type CUN86B1G can be used as ultraviolet LEDs.

LEDs of type SZFR5A0B can be used as far red LEDs.

Boards of various colors can be used as a printed circuit board: black, red, blue. The type of board is selected depending on the need to create certain conditions for growing plants. For example, a black aluminum board can be used with white LEDs and LEDs with an emission spectrum of 630-680 nm (red LEDs). This module supplies plants with a universal spectrum with maximum efficiency. The blue PCB can be used with white LEDs, as well as LEDs with an emission spectrum of 630-768 nm (red) and LEDs with an emission spectrum of 300-400 nm (ultraviolet LEDs). This combination in an LED module will ensure rapid vegetation and a gain of plant biomass. A red printed aluminum board with white LEDs and LEDs with an emission spectrum of 630-680 nm (red) and with an emission spectrum of 710-780 (far-red LEDs) can also be used. This LED module enhances the growth (stretching) of plants. The essence of the proposed technical solution is illustrated by the following figures:

Fig. 1 - LED module diagram,

Fig. 2 is an example of the implementation of an LED module on a black aluminum board,

Fig 3 is an example of the implementation of an LED module on a black aluminum board,

Fig. 4 is an example of the implementation of an LED module on a blue aluminum board,

Fig. 5 example of implementation of an LED module on a red aluminum board,

Fig. 6 example of attaching LED modules to a cooling radiator,

Fig. 7 - comparison of mounting optical lenses with a difference of 90 degrees.

The following notations are used in the figures:

1 - printed circuit board;

2 - optical group lens;

3 - (VL1, VL2…VLn) - white LEDs;

n is the number of white LEDs in the module;

4 (VR1, VR2…VRm) - LEDs with an emission spectrum in the range of 630-680 nm (red);

m is the number of LEDs in the module with an emission spectrum in the range of 630-680 nm;

5 (VU1, VU2…VUk) - LEDs with an emission spectrum in the range of 300-400 nm (ultraviolet);

k is the number of LEDs in the module with an emission spectrum in the range of 300-400 nm;

6 - holes for screws for attaching the optical lens to the printed circuit board;

7 - holes on the group lens for rotating the lenses 90 degrees;

8 - resistors;

9 - connectors for powering the module (board-to-board type or contact pads for soldering wires).

10 (VF1, VF2…VF1) - LEDs with an emission spectrum in the range of 710-800 nm (far red);

l is the number of LEDs with an emission spectrum in the range of 710-750 nm;

11 - holes for attaching LED modules to the cooling radiator.

The LED module contains a printed circuit board 1; 3 white LEDs located on printed circuit board 1; at least one optical group lens 2 located on the printed circuit board 1 on top of the white LEDs 3; a group of LEDs with a light emission spectrum in the range of 300-800 nm (4, 5, 10), located on printed circuit board 1. In FIG. Figure 1 shows the following group of LEDs: red LEDs 4 with an emission spectrum in the range of 630-680 nm, ultraviolet LEDs 5 with an emission spectrum in the range of 300-400 nm.

The LED module also contains LEDs 10 (red distant) with an emission spectrum in the range of 710-800 nm, located on a printed circuit board (not shown in Fig. 1).

The width of the printed circuit board 1 can be in the range of 50 mm. up to 56 mm. The length of the printed circuit board 1 can be in the range of 80 mm. up to 500 mm. The size of the optical group lens can be 50×50 mm. A group lens with a size of 49.9×49.9 mm can also be used, and the size error can be 0.1 mm. The LED module can be fixed to a cooling radiator (not shown in the figure) using hole 11 on the board and screws. The cooling radiator can include from 1 to 5 LED modules. The LED modules can be mounted using screw holes 6 on the group lens 2 and the printed circuit board 1. The screw holes 6 on the group lens 3 can be located in the center of the lens. The thickness of the aluminum printed circuit board can range from 1.0-2.0 mm. The LED module additionally has holes 7 on the group lens 2, which are made with the ability to rotate the lens by 180° or 90°. The LED module may additionally contain four connectors 9 for powering the module (board-to-board type or contact pads for soldering wires). The module may also contain 8 resistors.

In fig. 1 shows an LED module with five optical group lenses 2, which are located on an aluminum circuit board 1. In this case, the group lenses 2 are located on the aluminum circuit board 1 using screws and holes 6. Each group lens 2 is located on the aluminum circuit board 1 on top of the white LEDs 3. In FIG. 1 shows an embodiment of an optical lens that contains sixteen white LEDs 3, while when implementing a utility model, the module can contain from four white LEDs 3 depending on the growing conditions of a particular type of plant. The LEDs are located on an aluminum printed circuit board using a soldering method. Thus, the LED module in FIG. 1 contains 80 white LEDs 2, that is n=80: VL1, VL2…VL80. The LED module also contains 4 LEDs with an emission spectrum in the range of 630-680 nm. In fig. 1 LEDs 4 are presented in the amount of six, that is, m=6: VR1, VR2…VR6. There are 5 LEDs with an emission spectrum in the range of 300-400 nm (shown in the figure as 2), that is, k=2: VU1, VU2. Holes 7 on the group lens for rotating the lenses by 90° are also shown. Rotating the lenses 90° allows you to direct the light flux to the entire area where the plants are located.

An example of an LED module implementation.

In fig. 2, 3 (Fig. 3 shows an identical module to Fig. 2, only without optical group lenses to display the location of white LEDs 3) shows an example of an LED module. The module contains an aluminum printed circuit board 1 black, the dimensions of which are: length 300 mm, width 54 mm, thickness 1.5 mm. The module contains n=80 white LEDs 3 of type STW7C12C-E0, as well as m=6 LEDs 4 with an emission spectrum of 660 nm type SZDR5A0C. The optical group lenses 2 have a size of 50x50 mm (0.1 mm error), and are attached to the aluminum circuit board 1 on top of the white LEDs 3 using holes 6 and screws. In fig. 2 also shows holes 7 for rotating the lenses 90 degrees, if it is necessary to direct the light flux in the other direction. 8 resistors are used: 4 resistors type 2512 12 Ohm 5% and 3 resistors type 2512 000 5%. Also shown are connectors 9 for powering the module. Such a module can be attached to a cooling radiator using holes 11 (on each side of the printed circuit board).

Another example of implementing an LED module.

In fig. Figure 4 shows an example of an LED module. The module contains an aluminum printed circuit board 1 blue, the dimensions of which are: length 300 mm, width 54 mm, thickness 1.5 mm. The module contains n=80 white LEDs 3 of type STW7C12C-E0, as well as m=6 LEDs 4 with an emission spectrum of 660 nm, type SZDR5A0C, and k=2 LEDs 5 with an emission spectrum of 385 nm, type CUN86B1G. The optical group lenses 2 have a size of 50x50 mm (0.1 mm error), and are attached to the aluminum circuit board 1 on top of the white LEDs 3 using holes 6 and screws. In fig. 4 also shows holes 7 for rotating the lenses by 90°, if it is necessary to direct the light flux in the other direction. 8 resistors are used: 1 resistor type R2512 000 5% and 2 resistors type R2512 4.7 Ohm 5%. Also shown are connectors 9 for powering the module. Such a module can be attached to a cooling radiator using holes 11 (on each side of the printed circuit board).

Another example of implementing an LED module.

In fig. Figure 5 shows an example of an LED module. The module contains an aluminum printed circuit board 1 red, the dimensions of which are: length 300 mm, width 54 mm, thickness 1.5 mm. The module contains n=80 white LEDs 3 of type STW7C12C-E0, as well as m=6 LEDs 4 with an emission spectrum of 660 nm, type SZDR5A0C, and l=2 LEDs with an emission spectrum of 730 nm, type SZFR5A0B. The optical group lenses 2 have a size of 50x50 mm (0.1 mm error), and are attached to the aluminum circuit board 1 on top of the white LEDs 3 using holes 6 and screws. In fig. 4 also shows holes 7 for rotating the lenses 90 degrees, if it is necessary to direct the light flux in the other direction. 8 resistors are used: 3 resistors type R2512 0 Ohm 5%. Also shown are connectors 9 for powering the module. Such a module can be attached to a cooling radiator using holes 11 (on each side of the printed circuit board).

Moreover, in any implementation example, the number of LEDs, as well as the color of the aluminum printed circuit board, can be changed depending on the need for a particular light spectrum.

In fig. Figure 6 shows an example of attaching two LED modules to a cooling radiator. The LED modules are attached to the cooling radiator using holes 11 on the circuit board 1 and screws, and the modules are interconnected and used together to improve the productivity of plant cultivation.

In fig. 7 shows an example of mounting optical lenses 2 with a difference of 90°. In figure 7 a), the optical lenses are arranged in a standard manner, that is, the convex parts (under which there are white LEDs 3) are located vertically (when viewed from above the optical lens). In this case, the legs (not shown in the figure) are positioned in holes 7, which are located along the edges of the aluminum board. In fig. 7 b) shows an option for mounting optical lenses 2 with a 90° turn - that is, the convex parts (under which there are white LEDs 3) are located horizontally. In this case, the legs (not shown in the figure) are positioned in holes 7, which are located in the middle of the aluminum board. The figure shows that the luminous flux in different options (a and b) is distributed differently.

Thus, through the use of an LED module, an increase in the productivity of growing plants (increased yield) is achieved, namely through the use of LEDs of different emission spectrum and the design of the LED module (location of LEDs on the printed circuit board), that is, the LED module allows you to obtain a module with power and spectrum radiation adapted for growing a specific agricultural crop. The result is achieved through the use of different LEDs to obtain different emission spectra.

Claims (15)

1. LED module containing a printed circuit board; white LEDs located on the printed circuit board; at least one optical group lens located on the printed circuit board on top of the white LEDs; ultraviolet LEDs with an emission spectrum of 300-400 nm; red LEDs with an emission spectrum of 630-680 nm; far-red LEDs with an emission spectrum of 710-800 nm. 2. LED module according to claim 1, in which the width of the printed circuit board is in the range from 50 mm to 56 mm. 3. LED module according to claim 1, in which the length of the printed circuit board is in the range from 80 mm to 500 mm. 4. LED module according to claim 1, in which the size of the group lens is 50×50 mm. 5. LED module according to claim 1, which is mounted on the cooling radiator using screws. 6. LED module according to claim 5, in which the cooling radiator includes from 1 to 5 LED modules. 7. The LED module according to claim 5, wherein the mounting is carried out using screw holes on the printed circuit board. 8. The LED module of claim 1, wherein the optical group lens is secured to the printed circuit board using a screw hole located at the center of the lens. 9. LED module according to claim 1, in which the thickness of the printed circuit board is from 1.0 mm to 2.0 mm. 10. LED module according to claim 1, in which the printed circuit board additionally contains holes that are designed to rotate the group lens by 90°. 11. LED module according to claim 1, which additionally contains four connectors for powering the module. 12. LED module according to claim 1, which uses white LEDs of type STW7C12C-E0. 13. LED module according to claim 1, which uses LEDs of type SZDR5A0C. 14. LED module according to claim 1, which uses LEDs of the CUN86B1G type. 15. LED module according to claim 1, which uses LEDs of type SZFR5A0B.