CN112997722A

CN112997722A - Plant growing lamp

Info

Publication number: CN112997722A
Application number: CN202110331447.7A
Authority: CN
Inventors: 胡东文
Original assignee: Shenzhen Meizhi Photoelectric Technology Co ltd
Current assignee: Shenzhen Meizhi Photoelectric Technology Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-06-22
Also published as: CA3115205C; CA3115205A1

Abstract

The invention discloses a plant growth lamp, which comprises a light source plate and a light emitting module arranged on the light source plate, wherein the light emitting module comprises a plurality of LED lamp beads arranged side by side along the length direction of the light source plate, and a positive wire and a negative wire arranged along the length direction of the light source plate, and power supply access ends of the positive wire and the negative wire are respectively arranged in the middles of the LED lamp beads; or the power access ends of the anode wire and the cathode wire are respectively arranged at two opposite ends of the plurality of LED lamp beads arranged side by side, and the plurality of LED lamp beads are respectively electrically connected with the anode wire and the cathode wire. The plant growth lamp can reduce the voltage drop of the circuit on the light source plate and improve the uniformity of the brightness of the plant growth lamp.

Description

Plant growing lamp

Technical Field

The invention relates to the field of indoor plant cultivation, in particular to a plant growth lamp.

Background

The luminous environment is one of the indispensable important physical environmental factors for plant growth and development, and the control of plant morphogenesis through light quality regulation is an important technology in the field of facility cultivation. The plant growth lamp has the functions of environmental protection and energy conservation, the LED plant lamp provides photosynthesis for plants, promotes the growth of the plants, shortens the time for the plants to bloom and bear fruits, improves the production, and is an indispensable product for crops in modern construction.

In the process of implementing the invention, the inventor finds that the existing plant growth lamp has the following problems: the circuit on the light source board of current vegetation lamp generally is according to the structural design of normal light, and power positive pole incoming end and negative pole incoming end all set up in the same end of light source board. The problem that the head-to-tail voltage drop is too high due to the overlong circuit of the circuit is often ignored, so that the brightness of the LED lamp at the front section of the circuit is high, the brightness of the LED lamp at the tail section of the circuit is low, and the brightness difference is obvious when the circuit is longer. Meanwhile, the power loss on the circuit is increased due to too high voltage drop, so that the light sources of the LED lamps on the light source board are further unevenly distributed.

Disclosure of Invention

The invention aims to provide a plant growth lamp, which can reduce the voltage drop of a circuit on a light source plate and improve the uniformity of the brightness of the plant growth lamp.

The technical scheme is as follows:

the plant growth lamp comprises a light source plate and a light emitting module arranged on the light source plate, wherein the light emitting module comprises a plurality of LED lamp beads arranged side by side along the length direction of the light source plate, and a positive wire and a negative wire arranged along the length direction of the light source plate, and power supply access ends of the positive wire and the negative wire are respectively arranged in the middles of the LED lamp beads; or the power access ends of the anode wire and the cathode wire are respectively arranged at two opposite ends of the plurality of LED lamp beads arranged side by side, and the plurality of LED lamp beads are respectively electrically connected with the anode wire and the cathode wire.

Furthermore, a patch capacitor is arranged on the light source board and connected with the positive wiring or the negative wiring in series.

Furthermore, a plurality of LED lamp pearls are arranged on the light source board at unequal intervals.

Further, the density of the LED lamp beads in the middle of the light source board is smaller than that of the LED lamp beads at the edge of the light source board.

Further, extend along the middle part of light source board to the marginal direction of light source board, the density of LED lamp pearl increases gradually.

Further, the LED lamp bead comprises an LED red light lamp and an LED white light lamp.

Further, the number ratio of the LED white light lamps to the LED red light lamps is 27: 1.

Furthermore, the LED lamp beads comprise three LED white light lamp strings connected in parallel in series and one LED red light lamp string connected in parallel, and the three LED white light lamp strings connected in parallel in series are connected with one LED red light lamp string connected in parallel in series.

Further, the LED white light lamp string comprises eighteen LED white light lamps connected in series, and the LED red light lamp string comprises two LED red light lamps connected in series.

Furthermore, a plurality of groups of light emitting modules are installed on the light source board and connected in parallel.

The following illustrates the advantages or principles of the invention:

1. the light source board of vegetation lamp is provided with the positive pole and walks the line and walk the line with the negative pole, because a plurality of LED lamp pearls are arranged into one row on the light source board, in an embodiment, can walk the power incoming end that line, negative pole were walked to the positive pole and set up respectively in the middle part of a plurality of LED lamp pearls of arranging into one row. The positive wire and the negative wire are respectively electrically connected with the DC through the power supply access end. In this embodiment, due to the above arrangement of the power access end of the anode wire and the cathode wire, the distance from the power access end to the LED lamp beads at the end of the row is approximately half of the length of the row of LED lamp beads. The purpose of reducing the pressure drop is achieved by shortening the wiring of the LED lamp beads at the end part of the light source plate, namely the wiring of the anode and the wiring of the cathode, so that the brightness difference of the LED lamp beads on the light source plate is reduced, and the brightness uniformity of the LED lamp beads is improved.

2. In an embodiment, the power supply access ends of the anode wire and the cathode wire can be respectively arranged at two opposite ends of the plurality of LED beads arranged in a row, and DC direct current can be simultaneously supplied through the two opposite ends. In this embodiment, the voltage difference at the power supply both ends is little, and the luminance of LED lamp pearl is more even on the light source board.

3. A plurality of LED lamp pearls are the range of unequal interval on the light source board, and extend to the edge direction of light source board along the middle part of light source board, and the density of LED lamp pearl increases gradually. According to the invention, the LED lamp beads are arranged at unequal intervals, the density of the LED lamp beads at the edge of the light source plate is increased as much as possible, the density of the LED lamp beads at the middle part of the light source plate is reduced, the illumination intensity at the middle part of the light source plate is reduced, the illumination range of the light emitting module is more uniform, and the growth of plants is promoted.

Drawings

Fig. 1 is a schematic structural view of a light source board according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a light source board according to a second embodiment of the present invention;

FIG. 3 is a circuit diagram of a light source board of a third embodiment of the present invention;

description of reference numerals:

10. a light source plate; 20. LED lamp beads; 30. wiring the positive electrode; 40. a negative electrode wiring; 50. and (4) a chip capacitor.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "middle", "inner", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

The first embodiment:

as shown in fig. 1, the present embodiment discloses a vegetation lamp including a light source board 10, and a light emitting module mounted on the light source board 10. The light emitting module comprises a plurality of LED lamp beads 20 arranged side by side along the length direction of the light source board 10, and a positive wiring 30 and a negative wiring 40 arranged along the length direction of the light source board 10, wherein the plurality of LED lamp beads 20 are respectively electrically connected with the positive wiring 30 and the negative wiring 40.

Further, a plurality of LED lamp pearls 20 are arranged on the light source board 10 at unequal intervals. The density of the LED lamp beads 20 in the middle of the light source board 10 is less than that of the LED lamp beads 20 at the edge of the light source board 10. Preferably, the density of the LED beads 20 gradually increases along the middle of the light source board 10 extending to the edge direction of the light source board 10.

In the existing plant growth lamp, the adjacent LED lamp beads 20 are generally distributed at equal intervals, the light intensity and light radiation energy required by growth of planted cash crops are not fully considered, the irradiation area of light irradiating on plants is small, and all the planted plants cannot be covered. The plant growth lamp with large volume has very high brightness and strong radiation in the central area, and the brightness radiation is too high or the water of plant leaves can be baked and withered. The brightness of the edge area of the plant growth lamp is low, which is not beneficial to the growth of plants or causes the growth of plants to be undesirable.

This embodiment sets up a plurality of LED lamp pearls 20 on light source board 10 to unequal interval arrangement, and extends to the edge direction of light source board 10 along the middle part of light source board 10, and LED lamp pearl 20's density crescent. LED lamp pearl 20 is arranged through unequal interval to this embodiment to increase the density of LED lamp pearl 20 at light source board 10 edge as far as possible, reduce the density of the LED lamp pearl 20 in light source board 10 middle part. This embodiment reduces the illumination intensity at light source board 10 middle part through above-mentioned setting, strengthens the illumination intensity of light source board 10 edges, makes the irradiation range of vegetation lamp more even, more is favorable to urging into the growth of plant.

On the vegetation lamp, the farther the distance of the wiring between the positive and negative electrodes of the light source plate 10, the larger the voltage drop will be. The influence of the pressure drop of the plant growth lamp with the small volume on the brightness of the LED lamp beads 20 is slightly smaller, but for the plant growth lamp with the large volume, the pressure drop is larger, so that the brightness difference of the LED lamp beads 20 is larger. Taking a plant growth lamp with power of 1000W as an example, if the voltage drop of the light source plate 10 of the plant growth lamp is about 2V and the current is about 10A, one plant growth lamp will have power consumption of about 20W, and if there are 100 plant growth lamps in one planting room, waste of about 2000W will be caused.

In order to reduce the voltage drop of the circuit of the light source board 10 and further improve the uniformity of the brightness of the LED lamp beads 20, the power access ends of the anode wire 30 and the cathode wire 40 of the embodiment are respectively arranged in the middle of the plurality of LED lamp beads 20.

In this embodiment, since the power access ends of the positive wire 30 and the negative wire 40 are respectively disposed in the middle of the LED beads 20 arranged in a row, the distance from the power access end to the LED bead 20 at the end of the row is approximately half of the length of the LED bead 20 in the row. Through shortening the positive pole and walk line 30, the negative pole is walked 40 and is walked the line to the LED lamp pearl 20 at light source board 10 edge, reaches the purpose that reduces the pressure drop to reduce the luminance difference of LED lamp pearl 20 on the light source board 10, improve the homogeneity of LED lamp pearl 20 luminance. Taking the light source board 10 with the length of 1049MM as an example, with the above arrangement of this embodiment, the voltage drop can be reduced by about 30% compared to the arrangement in which the power source access ends of the positive wiring 30 and the negative wiring 40 are disposed at the same end of the light source board 10.

When the vegetation lamp is accessed into the AC power grid, if the L-pole live wire, the N-pole zero line are reversely connected with the L-pole live wire and the N-pole zero line of the AC power grid, when the switch of the vegetation lamp is closed, the LED lamp beads 20 on the light source plate 10 can emit the condition of slightly bright afterglow. If no other light sources are arranged around the plant growth lamp, under the dark environment, the slightly bright condition of the residual light of the LED lamp bead 20 is more obvious. Simultaneously, have the existence of response electricity on the light source board 10, if this response electricity does not put, long-term use causes LED lamp pearl 20 on the light source board 10 easily to receive the damage of not equidimension to further lead to the degree of consistency reduction of light source on the light source board 10.

In order to discharge the electricity that is not discharged on the light source board 10 or the electricity generated by induction, the patch capacitor 50 is disposed on the light source board 10, and the patch capacitor 50 is connected in series with the positive trace 30 or the negative trace 40. Preferably, the patch capacitor 50 is connected in series with the negative trace 40.

The light source plate 10 is generally provided with mounting holes, and the light source plate 10 is fixed to the housing of the vegetation lamp by mounting screws in the mounting holes. In this embodiment, since the patch capacitor 50 is connected in series to the negative wiring 40, when the switch of the plant production lamp is turned off, the electricity that is not discharged or is generated by induction on the light source board 10 is discharged to the housing through the screw. After the induction electricity is released, the condition that the residual light of the LED lamp beads 20 is slightly bright can disappear, so that the LED lamp beads 20 are prevented from being damaged due to the existence of the induction electricity, and the uniformity of a light source of the light source board 10 is prevented from being influenced due to the damage of part of the LED lamp beads 20.

Second embodiment:

the present embodiment also discloses a plant growth lamp, which is different from the first embodiment in that:

as shown in fig. 2, the power supply access ends of the positive wire 30 and the negative wire 40 of the present embodiment are respectively disposed at two opposite ends of the plurality of LED beads 20 arranged side by side.

In this embodiment, the power supply access ends of the positive wire 30 and the negative wire 40 are respectively disposed at two opposite ends of the plurality of LED beads 20 arranged in a row, and DC power is simultaneously supplied through the two opposite ends. This embodiment reduces the voltage difference at power supply both ends through above-mentioned setting, improves the homogeneity of 20 luminance of LED lamp pearls on light source board 10.

The third embodiment:

based on the first embodiment and the second embodiment, further, the LED lamp bead 20 of the light emitting module of the present embodiment includes an LED red light lamp and an LED white light lamp. Preferably, the number ratio of the LED white light lamps to the LED red light lamps is 27: 1. The wavelength of the LED red light lamp is 660nm, and the voltage of the LED red light lamp is 2.0V; the voltage of the LED white light lamp is 2.8V to 3.0V.

Further, the light emitting module comprises three series-parallel LED white light lamp strings and one series-parallel LED red light lamp string, and the three series-parallel LED white light lamp strings and the one series-parallel LED red light lamp strings are connected in series. Preferably, the LED white light lamp string comprises eighteen LED white light lamps connected in series, and the LED red light lamp string comprises two LED red light lamps connected in series.

As shown in fig. 3, in an embodiment, a plurality of sets of light emitting modules are mounted on the light source board 10, and the plurality of sets of light emitting modules are connected in parallel.

The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the present invention can be modified, substituted or combined in other various forms without departing from the basic technical idea of the present invention.

Claims

1. The plant growth lamp comprises a light source plate and a light emitting module arranged on the light source plate, and is characterized in that the light emitting module comprises a plurality of LED lamp beads arranged side by side along the length direction of the light source plate, and a positive wire and a negative wire arranged along the length direction of the light source plate, wherein power supply access ends of the positive wire and the negative wire are respectively arranged in the middles of the LED lamp beads; or the power access ends of the anode wire and the cathode wire are respectively arranged at two opposite ends of the plurality of LED lamp beads arranged side by side, and the plurality of LED lamp beads are respectively electrically connected with the anode wire and the cathode wire.

2. The vegetation lamp of claim 1, wherein a patch capacitor is disposed on the light source plate, the patch capacitor being in series with the positive trace or the negative trace.

3. The plant growth lamp as claimed in any one of claims 1 or 2, wherein a plurality of the LED beads are arranged at unequal intervals on the light source plate.

4. The vegetation lamp of claim 3, wherein the density of the LED beads in the middle of the light source plate is less than the density of the LED beads at the edge of the light source plate.

5. The plant growth lamp of claim 3, wherein the density of the LED beads is gradually increased along the middle of the light source plate toward the edge of the light source plate.

6. The plant growth lamp of claim 1, wherein the LED lamp bead comprises an LED red light lamp and an LED white light lamp.

7. The plant growth lamp of claim 6, wherein the number ratio of the LED white light lamps to the LED red light lamps is 27: 1.

8. The plant growth lamp of claim 1, wherein the plurality of LED lamp beads comprises three series-parallel LED white light strings and one series-parallel LED red light string, and the three series-parallel LED white light strings are connected in series with the one series-parallel LED red light string.

9. The plant growth lamp of claim 8, wherein the LED white light string comprises eighteen LED white light lamps connected in series, and the LED red light string comprises two LED red light lamps connected in series.

10. The plant growth lamp of claim 1, wherein a plurality of groups of light emitting modules are mounted on the light source plate, and the plurality of groups of light emitting modules are connected in parallel.