CN212367958U - Plant illumination area source of high mixed light degree of consistency - Google Patents
Plant illumination area source of high mixed light degree of consistency Download PDFInfo
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- CN212367958U CN212367958U CN201921638078.0U CN201921638078U CN212367958U CN 212367958 U CN212367958 U CN 212367958U CN 201921638078 U CN201921638078 U CN 201921638078U CN 212367958 U CN212367958 U CN 212367958U
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- led lamp
- bottom plate
- light
- diffuse reflection
- lamp beads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Cultivation Of Plants (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model discloses a plant lighting area light source with high light mixing uniformity, which comprises a radiator part with high heat radiation effect and a light source module; the light source module comprises LED lamp beads, a diffuse reflection bottom plate, a peripheral frame, a light mixing element made of PMMA and arranged on the LED lamp beads, and an emergent panel; the LED lamp bead is driven by an external dual modulation technology driving peripheral circuit, the dual modulation technology driving peripheral circuit is a driving peripheral circuit combining PAM and PWM, and the advantages of high PAM luminous efficiency and flexible PWM dimming performance are combined. Under the condition of not changing the average current, the current peak value is adjusted to compensate the color temperature drift, so that the light output of the lamp is stable, accurate and efficient. The utility model discloses mainly having solved current problem from the optics angle, utility model discloses a scientific, reasonable LED plant illumination area source, this lamps and lanterns utility model will provide scientific effectual solution for solving plant factory's plant illumination problem.
Description
Technical Field
The utility model relates to a plant illumination light source field, concretely relates to plant illumination area source of high mixed light degree of consistency.
Background
With the rapid development of modern agriculture, developed regions are increasingly short of land, traditional agriculture is increasingly declining, and in order to meet the increasing grain demand, it is becoming a great trend that plant factories are established in developed countries such as effective Japan and Germany to develop vertical agriculture and modern agriculture vigorously. As a key ring of plant growth, light occupies an important position in the aspect of plant growth, and LED plant light sources are produced accordingly, but most of the LED light sources currently used in plant factories use optical structures according to conventional LED lamps, such as optical structures of LED spot lamps, optical structures of LED advertisement lamps, and simple array lamps, so that although design cost is saved, since most of the lamp beads of plant lighting lamps are red, blue, red, yellow, red, orange, and the like, the conventional optical structures are difficult to achieve a very uniform polychromatic light mixing effect, so that the surface of a plant to be illuminated is locally too bright or too dark or the spectral distribution is not uniform, the growth uniformity of the planted plants is difficult to ensure, and finally the quality of the plants produced in the whole batch is uneven. The lamps with uneven spectral distribution are used for lighting, the growth requirements of different plants in different stages of growth are not facilitated, the optical framework of the common plant lighting lamp on the market is rough, the uniformity is poor, the light quality ratio distribution is uneven, the light quantum flux density (PPFD) on the illuminated surface is uneven, higher energy consumption and cost can be generated, and the improvement of the quality of actual production products is not facilitated. Therefore, the utility model designs a scientific and reasonable's plant light to above-mentioned not enough, its mix light degree of consistency, luminous efficiency and on the face of being lighted effective light energy utilization ratio, heat dissipation etc. aspect have all reached the very scientific effect that is favorable to vegetation. The application in plant factories can have great application prospects.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art's shortcoming and not enough, in order to solve the problem of the design academia of current vegetation lamp, disclose a plant illumination area source of high mixed light degree of consistency, mainly from improving vegetation lamp to the mixed light degree of consistency of polychromatic light, improve vegetation lamp's luminous efficiency, improve the not enough of prior art in the three aspect of radiating effect. The seedling growing lamp has high efficiency, high light mixing uniformity and high heat dissipation effect.
The purpose of the utility model is realized through one of following technical scheme at least.
A plant lighting area light source with high light mixing uniformity comprises a radiator part with high heat dissipation effect, a light source module and a peripheral circuit driven by double modulation technology; the light source module comprises LED lamp beads, a diffuse reflection bottom plate, a peripheral frame, a light mixing element made of PMMA and arranged on the LED lamp beads, and an emergent panel;
the LED lamp beads are arranged on the diffuse reflection bottom plate; the diffuse reflection bottom plate is arranged on the radiator part with high heat dissipation effect through heat conduction silica gel, and is fixed through a fixing clamping groove which is arranged and fixed on the radiator part with high heat dissipation effect through screws; each LED lamp bead is provided with a light mixing element made of PMMA; two long sides and one short side of the diffuse reflection bottom plate are surrounded by a peripheral frame, and the peripheral frame and the diffuse reflection bottom plate form an angle of 90 degrees; the emergent bottom plate is arranged on the peripheral frame and is parallel to the diffuse reflection bottom plate; the LED lamp beads are driven by the peripheral circuit driven by the dual modulation technology, and the peripheral circuit driven by the dual modulation technology is located at the joint of the LED lamp beads and the power supply and used for driving and dimming the LED lamp beads.
Furthermore, the LED lamp beads adopt COB-packaged red (R), green (G) and blue (B) tricolor LED lamp beads for adjusting the light-emitting spectrum of the lamp by driving the multi-path PWM signals sent out by the peripheral circuit through a dual modulation technology aiming at different types of plant seedlings so as to meet the requirements of different plant seedlings on different spectra.
Further, radiator part with high radiating effect, whole shape is a cube cavity structure, and whole material is metallic aluminum, and cavity and inside radiating structure integration processing form, and its inside radiating structure is a rectangle or rhombus radiating fin, and external outlet pipe and the inlet tube of cavity structure, the purpose is to the characteristics of plant factory vertical culture frame, and the water that uses the watering plant carries out the circulation heat dissipation for the planting system high efficiency compactness of whole mill, owing to borrowed the liquid stream heat dissipation, so the radiating effect is very high.
Furthermore, the radiating fins are arranged in the cavity in rows and columns, the interval between two adjacent rows of radiating fins is 2.0-2.8mm, and the interval between two adjacent rows of radiating fins is 1.1-1.5 mm.
Furthermore, the diffuse reflection bottom plate is a diffusion plate made of Polycarbonate (PC) materials, the thickness value is 0.5-3mm, the diffuse reflection bottom plate is used for installing LED lamp beads, the LED lamp beads on the diffuse reflection bottom plate are arranged in a hexagon shape, the hexagonal LED lamp bead array arrangement is adopted, the lamp distribution density is effectively reduced, each LED lamp bead is provided with a light mixing element made of PMMA, the side surface of each light mixing element is a light reflection surface, and the upper bottom surface and the lower bottom surface of each light mixing element are light transmission surfaces; the optical element composed of the diffuse reflection bottom plate and the light mixing element can divide light rays emitted by the LED into a direct part, a diffusion part and a reflection part, so that the coupling degree of the light rays is increased, and the uniformity is improved.
Furthermore, the outgoing panel is a diffusion plate made of PMMA, and the thickness value is 0.25-1.5 mm.
Furthermore, the dual modulation technology driving peripheral circuit is a dual modulation technology driving circuit combining PAM and PWM, and the advantages of high luminous efficiency of PAM and flexible PWM dimming performance are combined. The peripheral circuit driven by the dual modulation technology consists of two parts: a power loop and a control loop. The power circuit, namely the circuit main circuit, comprises an input rectifying and filtering circuit, a power conversion circuit and an output rectifying and filtering circuit, in the actual dimming process, the current amplitude is changed to perform color drift compensation, the luminous flux of the LED is adjusted by adjusting the duty ratio, the problem of color temperature drift caused by the problems of junction temperature change and aging of the LED is solved, and the current peak value is adjusted to compensate the color temperature drift under the condition of not changing the average current, so that the light output of the lamp is stable, accurate and efficient.
Further, the fixed card slot is made of plastic with an IP protection grade of IP43 or IP 44.
Furthermore, the peripheral frame is made of aluminum alloy, and the thickness value is 23-27 mm.
Compared with the prior art, the utility model has the advantages of it is following:
1. the lamp is arranged on the radiator part which uses liquid flow for heat dissipation and has high heat dissipation effect, and compared with the existing lamp, the heat dissipation effect is improved.
2. The utility model discloses mix the light problem with the basis of LED lamp pearl and combine together with the concrete optical structure of concrete lamps and lanterns, mix the light degree of consistency to the plant lighting lamp from photometry and colourity angle comprehensive, multi-angle, systematization and improve.
3. The utility model discloses a mixed light component that diffuse reflection bottom plate and PMMA made has improved the light energy utilization ratio of lamps and lanterns for the light of defeated outgoing is absorbed and then is used for photosynthesis by the plant as much as possible, and this characteristics can reduce the dissipation of light energy and reduce the power consumption, and then have saved manufacturing cost.
4. The utility model discloses applied by the dual modulation technique that pulse width modulation technique (PWM) and pulse amplitude modulation technique (PAM) combined, be favorable to high-efficient and accurate modulation plant light source.
Drawings
Fig. 1 is a schematic view of the overall structure of the plant lighting surface light source with high light mixing uniformity in this embodiment;
FIG. 2 is a specific structure diagram of the LED lamp bead selected for use in the embodiment of the present invention;
FIG. 3 is a view showing the structure of a surface light source in the present embodiment;
FIG. 4 is a block diagram of the peripheral circuit driven by the dual modulation technique in the present embodiment;
fig. 5 is a partial structural view of the heat sink having a high heat dissipation effect in the present embodiment.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
Example (b):
as shown in fig. 1, a plant lighting area light source with high light mixing uniformity is divided into three parts, namely a heat sink part 1 with high heat dissipation effect, a light source module 2 and a dual modulation technology driving peripheral circuit 12; the light source modules 2 are regularly arranged on the radiator part with high heat dissipation effect at equal intervals according to an array arrangement mode, and the external pump body 11 in the figure 1 is used for pumping the water which is not utilized by seedling irrigation into a heat dissipation cavity of the radiator part 1; the peripheral circuit 12 is driven by a dual modulation technology to drive and dim the LED lamp beads.
As shown in fig. 3, the light source module includes LED lamp beads 6, a diffuse reflection bottom plate 7, a peripheral frame 8, a light mixing element 9 made of PMMA and installed on the LED lamp beads, and an exit panel 10; the side surface of the light mixing element 9 is a reflecting surface, and the upper bottom surface and the lower bottom surface are light transmitting surfaces; the exit panel 10 is a diffusion plate.
The light source module 2 is installed on the radiator part 1 with high heat dissipation effect, and the specific installation mode is that, as shown in fig. 3, the LED lamp beads 6 are installed on the diffuse reflection bottom plate 7; the diffuse reflection bottom plate 7 is mounted on the radiator part 1 with high heat dissipation effect through heat conduction silica gel, and the diffuse reflection bottom plate 7 is fixed through a fixing clamping groove which is mounted and fixed on the radiator part 1 with high heat dissipation effect through screws, wherein in the embodiment, the fixing clamping groove is a plastic product with IP protection grade of IP 43; each LED lamp bead 1 is provided with a light mixing element 9 made of PMMA; two long sides and one short side of the diffuse reflection bottom plate 7 are surrounded by a peripheral frame 8, and the peripheral frame 8 and the diffuse reflection bottom plate 7 form an angle of 90 degrees; an exit substrate 10 is mounted on the peripheral frame 8, the exit substrate 10 being parallel to the diffuse reflection substrate 7.
In this embodiment, the LED lamp bead 6 is a COB-packaged red, green, and blue LED lamp bead, wherein, as shown in fig. 2, the size of the lamp bead is 13.5mm square, the size of the light-emitting surface is 9.6mm in diameter, the thickness of the lamp bead is 2.0mm, the power is 10W, the exterior is packaged by a full copper material, the forward voltage is 34-38V, and the rated current is 0.3A.
The diffuse reflection bottom plate 7 is a diffusion plate made of polycarbonate material, the thickness value is 0.5-3mm, the diffuse reflection bottom plate is used for installing the LED lamp beads 6, the LED lamp beads 6 on the diffuse reflection bottom plate 7 are arranged in a hexagon shape, and the lamp arrangement density is effectively reduced; each LED lamp bead 6 is provided with a light mixing element 9 made of PMMA, the side surface of the light mixing element 9 is a light reflecting surface, and the upper bottom surface and the lower bottom surface are light transmitting surfaces; the optical element composed of the diffuse reflection bottom plate 7 and the light mixing element 9 divides the light emitted by the LED into direct light, diffusion and reflection.
The emitting panel 10 is made of PMMA material and has a thickness value of 0.25-1.5 mm.
The peripheral frame 8 is made of aluminum alloy and has a thickness value of 23-27 mm.
As shown in fig. 5, the heat sink portion 1 with high heat dissipation effect is a cubic cavity structure, the whole material is aluminum, the cavity and the internal heat dissipation structure are integrally processed, the internal structure is a rectangular or rhombic heat dissipation fin 5, taking a rhombic fin as an example, water for irrigating seedlings flows in the cavity, and when in use, the water is sucked into the cavity through the external pump body 11 connected through the water inlet pipe 3 and then is conveyed out of the whole heat dissipation cavity through the water outlet pipe 4; the radiating fins are arranged in the cavity in rows and columns, the interval between every two adjacent rows of radiating fins is 2.0-2.8mm, and the interval between every two adjacent rows of radiating fins is 1.1-1.5 mm.
In addition, not only the light source module portion, but also the above-mentioned embodiment is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (9)
1. A plant lighting area light source with high light mixing uniformity is characterized by comprising a radiator part with high heat dissipation effect, a light source module and a peripheral circuit driven by double modulation technology; the light source module comprises LED lamp beads, a diffuse reflection bottom plate, a peripheral frame, a light mixing element made of PMMA and arranged on the LED lamp beads, and an emergent panel;
the LED lamp beads are arranged on the diffuse reflection bottom plate; the diffuse reflection bottom plate is arranged on the radiator part with high heat dissipation effect through heat conduction silica gel, and is fixed through a fixing clamping groove which is arranged and fixed on the radiator part with high heat dissipation effect through screws; each LED lamp bead is provided with a light mixing element made of PMMA; two long sides and one short side of the diffuse reflection bottom plate are surrounded by a peripheral frame, and the peripheral frame and the diffuse reflection bottom plate form an angle of 90 degrees; the emergent bottom plate is arranged on the peripheral frame and is parallel to the diffuse reflection bottom plate; the LED lamp beads are driven by the peripheral circuit driven by the dual modulation technology, and the peripheral circuit driven by the dual modulation technology is located at the joint of the LED lamp beads and the power supply and used for driving and dimming the LED lamp beads.
2. A plant lighting area light source as claimed in claim 1, wherein said LED beads are COB packaged red, green and blue LEDs for adjusting the light spectrum of the lamp by the multi-channel PWM signal sent from the peripheral circuit driven by the dual modulation technique for different types of plant seedlings.
3. A plant lighting area source with high uniformity of light mixing according to claim 1, wherein the heat sink part with high heat dissipation effect has a cubic cavity structure, the whole material is aluminum, the cavity and the internal heat dissipation structure are integrally formed, the internal heat dissipation structure is a rectangular or diamond-shaped heat dissipation fin, and the cavity structure is externally connected with the water outlet pipe and the water inlet pipe.
4. A plant lighting area source with high light mixing uniformity as defined in claim 1, wherein the diffuse reflection bottom plate is a diffusion plate made of polycarbonate material, the thickness value is 0.5-3mm, and the diffuse reflection bottom plate is a bottom plate for mounting LED lamp beads, and the LED lamp beads on the diffuse reflection bottom plate are arranged in a hexagon; each LED lamp bead is provided with a light mixing element made of PMMA, the side surface of the light mixing element is a light reflecting surface, and the upper bottom surface and the lower bottom surface of the light mixing element are light transmitting surfaces; the optical element composed of the diffuse reflection bottom plate and the light mixing element divides light rays emitted by the LED into a direct part, a diffusion part and a reflection part.
5. The plant lighting area light source of claim 1, wherein the dual modulation technology driving peripheral circuit is a dual modulation technology driving circuit combining PAM and PWM for driving LED lamp beads of different monochromatic lights, and the dual modulation technology driving peripheral circuit is composed of a power loop and a control loop, and the power loop is a circuit main loop and includes an input rectifying filter circuit, a power conversion circuit and an output rectifying filter circuit.
6. A plant lighting area source as claimed in claim 1, wherein the exit panel is a diffuser plate made of PMMA with a thickness of 0.25-1.5 mm.
7. A plant lighting area light source as claimed in claim 1, wherein the fixing slots are made of plastic with IP protection class IP43 or IP 44.
8. A plant lighting area source with high light mixing uniformity as defined in claim 1, wherein said peripheral frame is made of aluminum alloy and has a thickness of 23-27 mm.
9. A plant lighting area light source with high light mixing uniformity as defined in claim 3, wherein the fins are arranged in rows and columns within the cavity, the interval between two adjacent rows of fins is 2.0-2.8mm, and the interval between two adjacent rows of fins is 1.1-1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921638078.0U CN212367958U (en) | 2019-09-28 | 2019-09-28 | Plant illumination area source of high mixed light degree of consistency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921638078.0U CN212367958U (en) | 2019-09-28 | 2019-09-28 | Plant illumination area source of high mixed light degree of consistency |
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| Publication Number | Publication Date |
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| CN212367958U true CN212367958U (en) | 2021-01-19 |
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| CN201921638078.0U Expired - Fee Related CN212367958U (en) | 2019-09-28 | 2019-09-28 | Plant illumination area source of high mixed light degree of consistency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110583281A (en) * | 2019-09-28 | 2019-12-20 | 华南理工大学 | Plant illumination area source of high mixed light degree of consistency |
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2019
- 2019-09-28 CN CN201921638078.0U patent/CN212367958U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110583281A (en) * | 2019-09-28 | 2019-12-20 | 华南理工大学 | Plant illumination area source of high mixed light degree of consistency |
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Granted publication date: 20210119 |