CN202868564U - LED light source used for plant growth - Google Patents
LED light source used for plant growth Download PDFInfo
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- CN202868564U CN202868564U CN2012203760949U CN201220376094U CN202868564U CN 202868564 U CN202868564 U CN 202868564U CN 2012203760949 U CN2012203760949 U CN 2012203760949U CN 201220376094 U CN201220376094 U CN 201220376094U CN 202868564 U CN202868564 U CN 202868564U
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Abstract
The utility model discloses an LED light source used for plant growth. The LED light source comprises a radiating substrate and sealing rings arranged on the surface of the radiating substrate, wherein a plurality of GaN-based blue-ray chips are arranged on the surface of the radiating substrate and are evenly located in a closed region surrounded by the sealing rings; a silica gel layer is sealed on the GaN-based blue-ray chips; and the surface of the silica gel layer is coated with red phosphor. The LED light source has the benefits that according to plant growth and development rhythms and the photosynthesis principle, the selective absorption principle of the plant growth for spectral wavelengths and different spectral sensitivities of plants are used, and scientific and reasonable supplementary lighting for the plant growth is performed, therefore sufficient photosynthesis is guaranteed for the plants, the plant blades are plump, root systems are developed, the growth vigor is good, the resistance and the immunity are strengthened, the precocity and the production increase of the plants are prompted, and the plant quality is improved.
Description
Technical field
The utility model relates to technical field of semiconductor illumination and plant growth technical field, specifically, be the fluorescent material that a kind of solid luminescence chip that utilizes specific band excites specific band, both are combined into the plant light compensation light source that solid light source comes Promoting plant growth, improves plant quality.
Background technology
Along with people's living standard progressively improve and to the change of food needs, health, green, environmental protection, life style more and more comes into one's own easily, health, nutrition, healthy food more and more are subject to liking of people, and wherein the victual of green non-pollution, fresh cleaning is particularly important to people's the modern life.And how quick, produce the important topic that this vegetables become people's concern with guaranteeing both quality and quantity.
Illumination is the necessary envirment factor of growth and development of plants.The normal growth of crop is grown, is yielded positive results and all regulate to finish by photosynthesis, photomorphogenesis, photoperiod.For ensureing the plant normal growth growth, must provide good illumination condition to plant.But the condition at winter-spring season and cloudy weather for several days running snow is descended, the illumination wretched insufficiency greenhouse in, illuminance a little less than, the deficiency of intensity of illumination and light application time can affect the photosynthesis of crop, make grow suppressed, thereby cause production declining.In addition, crop is at Seedling Stage and yielding positive results the phase, seedling percent is low if the illumination deficiency also can occur, anamorphosis, fruit drop so that crop quality descend.For growing up strong and sturdy of crops in the assurance warmhouse booth, need to carry out artificial light filling to plant.
At present, plant light compensation with fluorescent lamp as main artificial light source.Contain infrared and far red light in the fluorescent lamp spectrum, have considerable heat to be delivered in the environment in the mode of fuel factor, quantity of heat production is large, so the efficiency of light energy utilization is low, is unfavorable for the accurate control of environment in the plant factor, directly affects the raising of economic benefit.In addition, the power consumption of fluorescent lamp is large, and the electricity charge have become the major part of plant factor's operating cost, thereby has greatly increased the production cost of product, has also affected the performance of plant growth potentiality.How light supply apparatus reasonably is set, how to make intensity of illumination, light quality ratio, illumination frequency, the periodicity of illumination of light supply apparatus satisfy the requirement of growth and development of plants, guarantee simultaneously easy for installation, practical and attractive, energy-saving safety becomes a great problem that the crops light supply apparatus is developed.
Studies show that, the light of various wavelength has different reactions to photosynthesis of plant, growth rate.Leaf area expansion and photosynthetic rate are accelerated under " ruddiness " effect, and the content of chlorophyll content, soluble sugar and total reducing sugar is all the highest, and chlorophyll a/b value and total nitrogen content are low; Under " blue light " effect, promote the seedling stem to increase slightly, regulate stomatal opening, promote cell leakage and cytoplasm circulation; The growth of seedling can be better than " ruddiness " under " red blue light " mixes.Show with wavelength to be the Xiao Song dish of the red LED cultivation of 660nm, sugar part is original 1.3 times, near-infrared LED irradiation with 730nm, the content of vitamin has increased by 54%～72% in the crop, LED is under 400ms frequency and 50% dutycycle in application, the growth rate of romaine lettuce, photosynthetic rate all improve more than 20%, and therefore adopting the LED Intelligent supplemental lighting to shine plant is to meet very much scientic planting.
As the 4th generation the novel illumination light source, LED has many characteristics that are different from other electric light sources, this also makes it become the first-selection of energy-conserving and environment-protective light source.The LED that is applied to the plant growth field also has following characteristics: type of wavelength is abundant, just in time identical with the spectral region of plant photosynthesis and photomorphogenesis; Frequency spectrum wave width half width can make up as required and obtain pure monochromatic light and complex spectrum; The light that can concentrate specific wavelength is irradiate crops balancedly, greatly improves the utilization rate of spectrum; Not only crop flowers and solid can be regulated, the nutritional labeling of plant height and plant can also be controlled; System's heating is few, takes up room little, can be used for multilayer cultivation tridimensional combined system, has realized low heat loads and the miniaturization of production space; In addition, the durability of its extra-heavy has also reduced operating cost.Because these significant features, LED was fit to be applied to the plant culture in the controlled facilities environment in ten minutes, such as Plant Tissue Breeding, facilities horticulture and industrial seedling rearing and space flight ecology life support system etc.
The comparative analysis of table 1 Different Light photosynthetic active radiation
Table 1 has provided the comparative analysis of the effective radiation of Different Light physiology, as can be seen from the table, LED is applied to the greenhouse production crop, has the unrivaled advantage of other light sources, and led light source meets the requirement that national energy-saving reduces discharging policy, be a kind of light source of real green non-pollution, have technical background and the Policy Background of realizing industrialization.
But the led light source (such as Fig. 1) that is used for plant growth in the conventional art, generally be equidistantly to arrange in pairs or groups according to a certain percentage with blue chip 10 and red light chips 11, being arranged in substrate 12(with the arrangement mode of array can be metal, also can be ceramic material) on, and then be sealed in the enclosure space that is formed by epoxy resin ring (or silver-plated copper ring) 13 and substrate 12 with layer of silica gel 14.This led light source is owing to equidistantly arranging between the adjacent LED, and the number of red LED and blue led differs greatly (generally at 5:1 between the 9:1), so the light of outgoing is difficult to fully mix, causes the light phenomenon pockety of different colours.The inhomogeneous meeting of mixed light directly causes the unstability of crop quality, and causes the crop maturation time to differ, and increases management cost, reduces production efficiency.In addition, the cost of red chip is than high 1 ~ 2 times with the blue chip of equal-specification, and the consumption of red light chips is very large, and this also is a higher major reason of the special-purpose LED plant light source cost in greenhouse, thereby has affected applying of LED plant light source.
The utility model content
The purpose of this utility model is to solve the problem that mixed light is irregular, cost is higher that the prior art plant is used led light source, and the led light source that provides a kind of luminescence chip and fluorescent material to be used in conjunction with solves the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
The led light source that one plant growth is used, comprise heat-radiating substrate and sealing ring, described sealing ring is arranged on the heat-radiating substrate surface, it is characterized in that: the surface of described heat-radiating substrate is provided with some gallium nitride base blue light chips by array, described gallium nitride base blue light chip all is positioned at the closed area that sealing ring surrounds, be sealed with layer of silica gel on the gallium nitride base blue light chip, be coated with red fluorescence powder on the surface of described layer of silica gel.
In the utility model, described heat-radiating substrate is Metal Substrate heat-radiating substrate or the ceramic base heat-radiating substrate that is coated with high anti-layer.
In the utility model, described sealing ring is resin ring or the die-cast metal ring that is coated with high reflection layer.
In the utility model, described red fluorescence powder is the silicate red fluorescence powder.
In the utility model, the main light emission wavelength of described gallium nitride base blue light chip is 430 ~ 470nm, and the main light emission wavelength of described red fluorescence powder is 640 ~ 680nm.
In the utility model, the chromaticity coordinate of described led light source is x=0.41, y=0.16.
In the utility model, described resin ring is high temperature tolerance resin ring or the resin ring that formed by box dam point gum machine box dam.
In the utility model, described sealing ring be shaped as a kind of in square, rectangle, circle, ellipse, rhombus and the hexagon.
The beneficial effects of the utility model are mainly reflected in: according to the growth and development of plants rhythm and pace of moving things and photosynthesis principle, utilize plant growth to the selective principle of absorption of spectral wavelength and according to the difference of plant to spectral response, to the scientific and reasonable light filling of plant growth, guarantee that plant fully carries out photosynthesis, make plant leaf blade plumpness, well developed root system, grow fine, strengthen resistance and immunity, promoted jarovize, volume increase, improved plant quality.
The utility model has the advantage of:
Compare with the common electrical light source that uses in the traditional agriculture production, the utility model is according to the principle of photosynthesis principle and wavelength selectivity absorption, reasonably combined targetedly by intensity of illumination, light quality ratio, the illumination frequency of concrete spectrum are carried out, satisfy the specific demand of growth and development of plants; Because but irradiation at short distance can be satisfied the light compensation point requirement of plant better, radiation source efficient is higher, is particularly suitable for the facility cultivation environment of artificial light control type plant.
The utility model also has following unique features and significant advantage except some advantages with above traditional LED plant light source:
1) needs of the more suitable plant growth of light quality proportioning, photochromic uniformity consistency is better.Because through mixing fully, therefore there is not the relatively poor problem of the photochromic uniformity consistency of traditional LED lamp for plant growing in the ruddiness that the blue light that blue light sends and excitated red fluorescent powder send.
2) circuit control is more simple, does not have the problem that needs multichannel control in traditional LED lamp for plant growing, and the power of regulating illumination easily of the large I by electric current in the control circuit.
3) because fluorescent material shared ratio in whole led light source cost is generally less than 15%, and therefore red light chips shared large percentage (generally greater than 60%) in whole LED plant light source cost adopts this programme can greatly reduce the cost of LED plant light source.
Description of drawings
Fig. 1 is the profile that the plant growth of prior art is used led light source;
Fig. 2 is the profile of embodiment 1 in the utility model;
Fig. 3 is the profile of embodiment 2 in the utility model.
The specific embodiment
Embodiment 1
Referring to Fig. 2, on ceramic heat-dissipating substrate 22, form the resin ring 23 of sealing with box dam point gum machine point glue, the resin ring 23 of sealing can be square or circular, other situations, also allow such as rhombus or hexagon, in the space that ceramic heat-dissipating substrate 22 and the box dam 23 that seals form, be pasted with some gallium nitride base blue light chips 21, gallium nitride base blue light chip 21 is arranged by the arrangement mode of array, each arranges gallium nitrate based blue chip 21 is 12 (but not being defined as 12), gallium nitride base blue light chip 21 usefulness silica gel seal, then formed layer of silica gel 24 in 1-3 hour 150 ℃ of lower bakings, at last at layer of silica gel 24 surfaces coating one deck red fluorescence powder 25, test its chromaticity coordinates during coating red fluorescence powder 35, guarantee that chromaticity coordinates is positioned at x=0.41, near the y=0.16, addition by chromaticity coordinates control red fluorescence powder 35 obtains LED plant light source after the baking.
Embodiment 2
Referring to Fig. 3, above Metal Substrate heat-radiating substrate 32, be fixed with the sealing ring layer 33 that epoxy resin forms, the resin ring layer 33 of sealing can be square or circular, other situations, also allow such as rhombus or hexagon, in the space that Metal Substrate heat-radiating substrate 32 and the epoxy resin ring layer 33 of sealing form, be pasted with some gallium nitride base blue light chips 31, blue chip 31 is arranged by the arrangement mode of array, each arranges gallium nitrate based blue chip 21 is 12 (but not being defined as 12), gallium nitride base blue light chip 31 usefulness silica gel seal, then 150 ℃ of lower bakings 1-3 hour, form layer of silica gel 34, coating one deck silicate red fluorescence powder 35 above layer of silica gel is tested its chromaticity coordinates during coating red fluorescence powder 35 at last, guarantee that chromaticity coordinates is positioned at x=0.41, near the y=0.16, the addition by chromaticity coordinates control red fluorescence powder 35 obtains LED plant light source after the baking.
The above, it only is preferred embodiment of the present utility model, be not to limit the scope that the utility model is implemented, all equalizations of doing according to the described shape of the utility model claim scope, structure, feature and spirit change and modify, and all should be included in the claim scope of the present utility model.
Claims (5)
1. the led light source used of a plant growth, comprise heat-radiating substrate and sealing ring, described sealing ring is arranged on the heat-radiating substrate surface, it is characterized in that: the surface of described heat-radiating substrate is provided with some gallium nitride base blue light chips by array, described gallium nitride base blue light chip all is positioned at the closed area that sealing ring surrounds, be sealed with layer of silica gel on the gallium nitride base blue light chip, be coated with red fluorescence powder on the surface of described layer of silica gel.
2. led light source according to claim 1, it is characterized in that: described red fluorescence powder is the silicate red fluorescence powder.
3. led light source according to claim 1, it is characterized in that: the main light emission wavelength of described gallium nitride base blue light chip is 430 ~ 470nm, the main light emission wavelength of described red fluorescence powder is 640 ~ 680nm.
4. led light source according to claim 1, it is characterized in that: the chromaticity coordinate of described led light source is x=0.41, y=0.16.
5. led light source according to claim 1 is characterized in that: described sealing ring be shaped as a kind of in square, rectangle, circle, ellipse, rhombus and the hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203760949U CN202868564U (en) | 2012-07-31 | 2012-07-31 | LED light source used for plant growth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203760949U CN202868564U (en) | 2012-07-31 | 2012-07-31 | LED light source used for plant growth |
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| CN202868564U true CN202868564U (en) | 2013-04-10 |
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| CN2012203760949U Withdrawn - After Issue CN202868564U (en) | 2012-07-31 | 2012-07-31 | LED light source used for plant growth |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574489A (en) * | 2012-07-31 | 2014-02-12 | 无锡华兆泓光电科技有限公司 | LED (light emitting diode) light source for plant growth |
| CN103579422A (en) * | 2013-11-19 | 2014-02-12 | 中国科学院半导体研究所 | Plant supplementary lighting light emitting diode manufacturing method |
| CN104748073A (en) * | 2014-12-29 | 2015-07-01 | 李欣澄 | Full spectrum suitable for LED plant growing compound light |
| CN106051551A (en) * | 2016-07-15 | 2016-10-26 | 江苏华旦科技有限公司 | Illumination method and illumination equipment assisting plant growth |
| CN106688866A (en) * | 2016-12-13 | 2017-05-24 | 江苏云耕科技有限公司 | Plant wall with illumination systems |
-
2012
- 2012-07-31 CN CN2012203760949U patent/CN202868564U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574489A (en) * | 2012-07-31 | 2014-02-12 | 无锡华兆泓光电科技有限公司 | LED (light emitting diode) light source for plant growth |
| CN103574489B (en) * | 2012-07-31 | 2015-05-13 | 无锡华兆泓光电科技有限公司 | LED (light emitting diode) light source for plant growth |
| CN103579422A (en) * | 2013-11-19 | 2014-02-12 | 中国科学院半导体研究所 | Plant supplementary lighting light emitting diode manufacturing method |
| CN104748073A (en) * | 2014-12-29 | 2015-07-01 | 李欣澄 | Full spectrum suitable for LED plant growing compound light |
| CN106051551A (en) * | 2016-07-15 | 2016-10-26 | 江苏华旦科技有限公司 | Illumination method and illumination equipment assisting plant growth |
| CN106688866A (en) * | 2016-12-13 | 2017-05-24 | 江苏云耕科技有限公司 | Plant wall with illumination systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LED (light emitting diode) light source for plant growth Effective date of registration: 20130614 Granted publication date: 20130410 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Huazhaohong Optoelectronic Technology Co., Ltd. Registration number: 2013990000370 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130410 Effective date of abandoning: 20150513 |
|
| RGAV | Abandon patent right to avoid regrant | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20151103 Granted publication date: 20130410 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Huazhaohong Optoelectronic Technology Co., Ltd. Registration number: 2013990000370 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model |