CN2438320Y

CN2438320Y - Plant growing box with ultrabright light-emitting diode as artifical light source

Info

Publication number: CN2438320Y
Application number: CN 00254761
Authority: CN
Inventors: 方炜; 饶瑞佶; 李登华
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-26
Filing date: 2000-09-26
Publication date: 2001-07-11
Anticipated expiration: 2010-09-26

Abstract

The utility model relates to a plant growing box with a super-bright light-emitting diode as an artificial light source, which comprises at least one light fixture installed in the plant growing box to generate light to cultivate plants. The light fixture has a plurality of super-bright red light LEDs and a plurality of blue light LEDs, and the super-bright red light LEDs and the blue light LEDs are arranged by a mixing mode.

Description

With the growth chamber of superhigh brightness LED as artificial light source

The utility model relates to a kind of with the growth chamber of superhigh brightness LED as artificial light source, particularly relating to a kind of is hybrid light source with the light emitting diode of high light type ruddiness and the light emitting diode of blue light, and light quantity, light quality and illumination work are than adjustable growth chamber.

Past is cultivated tissue culturing seedling in tissue culture room, usually use fluorescent lamp (tubefluorescent lamp) as artificial light source, yet fluorescent lamp belongs to the heating light source, to cause in the tissue culture flasks under the light, superheating phenomenon being arranged, must manage separately to improve, hurt the possibility of cultivating the seedling growth otherwise have, thereby people's research and utilization light emitting diode is not arranged recently repeatly, and (lightemitting diode LED) cultivates tissue culturing seedling.Light emitting diode is a cold light source, when cultivation can with plant very near and improve the utilization rate in space, and have long, characteristics such as power consumption is little of life-span.

People such as Hoenecke in 1992 cooperate blue light fluorescent tube (tube fluorescent lamp) to come the culturing vegetable seedling and the (Hoenecke that succeeds with the light emitting diode of high light type ruddiness, M.E., R.J.Bula, and T.W.Tibbitts.1992.Iporyance of ' Blue ' photonlevels for lettuce seedlings grown under red-light-emitting diodes.Hort Science 27 (5): 427-430).Thereafter, blue-ray LED came out in 1993, Okamoto used high light type red-light LED and blue-ray LED in 1996, in ratio blue, the ruddiness quantum number is can cultivate normal vegetables (Okamoto 1: 2 time, K., T.Yanagi, and S.Takita.1996.Development of plant growth apparatus using blue and red LED asartificial light source.Acta Hort., 440:111-116).People such as Yanagi cultivated lettuce in the environment of pure blue-ray LED (170 μ mole/m2/s) in 1996, but confirm really differential growth, though dry matter is less than pure ruddiness or red, blue light and the plant of leaving, the shorter strong and healthy (Yanagi but the plant under the ethereal blue light seems, T., K.Okamoto, and S.Takita.1996.Effects of blue, red and blue/red lights of two differentPPF levels on growth and morphogensis of lettuce plants.Acta Hort.440:117-122).

But forefathers are many to study the feasibility of light emitting diode as plant cultivation with bench-scale testing, and the utility model is a starting point with a large amount of productions then, superhigh brightness LED is installed on as artificial light source comes cultivated plant in the growth chamber.

It is a kind of with the growth chamber of superhigh brightness LED as artificial light source that the purpose of this utility model is to provide, to overcome existing defective in the prior art.

Task of the present utility model is finished in the following manner, a kind of with the growth chamber of superhigh brightness LED as artificial light source, its key is, comprise at least one light fixture, be installed in this growth chamber, this light fixture comprises a plurality of first light emitting diodes and a plurality of second light emitting diode, and described first light emitting diode and described second light emitting diode dispose with hybrid mode.

Above-mentioned first light emitting diode is preferably the light emitting diode of high light type ruddiness, and described second light emitting diode is preferably the light emitting diode of blue light.

The light emitting diode of above-mentioned high light type ruddiness can be arranged in several ruddiness row, and the light emitting diode of described blue light also can be arranged in several blue lights row, and preferably described red, blue light is listed as with interlace mode and disposes.

Can also comprise a driver in the above-mentioned growth chamber, be used for separately controlling light quantity, light quality, the illumination work ratio of the light emitting diode of described high light type ruddiness, and the light quantity of the light emitting diode of described blue light, light quality, illumination work ratio.

Above-mentioned driver preferably is made up of a waveform generation and a control circuit and a current amplifier, this waveform generation and control circuit are in order to produce required waveform and voltage, and can arbitrarily adjust wave amplitude, frequency and the work ratio of output pulse wave, and this current amplifier is used for amplifying this output pulse wave, described light fixture is given in power supply again, makes this light fixture produce corresponding light quantity, light quality and illumination work ratio.

Below in conjunction with accompanying drawing shown in embodiment and the cooperation above-mentioned purpose of the present utility model, feature and advantage are described in further details.

Fig. 1 is the stereogram of growth chamber of the present utility model;

Fig. 2 is the allocation plan of the light emitting diode on the circuit board of light fixture of the present utility model;

Fig. 3 is the block diagram of driver of the present utility model.

With reference to Fig. 1, Fig. 1 is the stereogram of growth chamber of the present utility model.Wherein, growth chamber 1 is separated into several sheaf spaces with dividing plate 11 from top to bottom, end face at each layer all is provided with light fixture 12, and light fixture 12 is the hybrid light source of the light emitting diode of the light emitting diode of high light type ruddiness and blue light, the then corresponding plant 2 that is placed with required cultivation below light fixture 12.In addition, be provided with a driver 16 at the end face of growth chamber 1, driver 16 is used to adjust voltage, electric current, frequency and the work of power supply output than (duty cycle), controls light quantity, light quality and the corresponding illumination work ratio of light fixture 12 whereby.Details are as follows for light fixture 12 and driver 16:

With reference to Fig. 2, Fig. 2 is the plane of light fixture of the present utility model, wherein, light fixture 12 has a circuit board 120, the light emitting diode 121 of the high light type ruddiness that being plugged with on circuit board 120 forms a line is listed as and the light emitting diode 122 of blue light, and the ruddiness row are interconnected with the blue light row, have again, light emitting diode 121 spacing to each other of ruddiness row is less, and light emitting diode 122 spacing to each other of blue light row is bigger, in the present embodiment, the number of the light emitting diode 12l of high light type ruddiness is about two times of light emitting diode 122 of blue light.In addition, each row light emitting diode 121,122 all is connected to driver 16 via connector 123.

Driver 16 can be controlled red respectively, the light quantity of the light emitting diode of blue light, light quality and illumination work ratio, with reference to Fig. 3, Fig. 3 is the block diagram of driver of the present utility model, driver 16 is made up of a waveform generation and a control circuit 161 and a current amplifier 162, wherein, waveform generation and control circuit 161 are in order to produce required waveform (square wave, triangular wave, the string ripple, pulse wave etc.) and voltage, and the user can arbitrarily adjust the wave amplitude of output pulse wave, frequency, and work ratio, amplify output pulse wave and powering via current amplifier 162 then, make light fixture 12 produce corresponding light quantity to light fixture 12, light quality and illumination work ratio.

In sum, the utility model is a starting point with a large amount of productions, and corresponding develop a kind of with the growth chamber of superhigh brightness LED as artificial light source, wherein, the growth case inside be divided into several layers, and each the layer all dispose light fixture, in order to cultivate the plant of a greater number simultaneously.That driver can be adjusted respectively is red, light quantity, light quality and the illumination work ratio of the light emitting diode of blue light, to be fit to all kinds of cultivations of plants, and for academic research unit, can be used for assessing light quantity and the light quality that the Different Crop growth is fit to, and assess admissible illumination work ratio, to make factory when producing, be saved electric power with appropriate illumination work ratio, reduce production costs.

Though the utility model with the most preferred embodiment explanation as above; but it is not to be used for limiting the utility model; ordinary skill in any present technique field; in not breaking away from design of the present utility model and scope; still can do suitable change and retouching, therefore protection domain of the present utility model should be as the criterion with the protection domain that claim was limited.

Claims

1, a kind ofly it is characterized in that, comprising with the growth chamber of superhigh brightness LED as artificial light source:

At least one light fixture is installed in this growth chamber, and this light fixture comprises a plurality of first light emitting diodes and a plurality of second light emitting diode, and described first light emitting diode and described second light emitting diode dispose with hybrid mode.

2, as claimed in claim 1ly it is characterized in that with the growth chamber of superhigh brightness LED described first light emitting diode is the light emitting diode of high light type ruddiness as artificial light source, and the light emitting diode that described second light emitting diode is a blue light.

3, as claimed in claim 2 with the growth chamber of superhigh brightness LED as artificial light source, it is characterized in that, the light emitting diode of described high light type ruddiness is arranged in several ruddiness row, and the light emitting diode of described blue light is arranged in several blue lights row, and described red, blue light is listed as with interlace mode and disposes.

4, as claimed in claim 2 with the growth chamber of superhigh brightness LED as artificial light source, it is characterized in that, also comprise a driver, be used for light quantity, light quality, illumination work ratio, and the light quantity of the light emitting diode of described blue light, light quality, illumination work are than separately control with the light emitting diode of described high light type ruddiness.

5, as claimed in claim 4 with the growth chamber of superhigh brightness LED as artificial light source, it is characterized in that, described driver comprises a waveform generation and a control circuit and a current amplifier, this waveform generation and control circuit are in order to produce required waveform and voltage, and can arbitrarily adjust wave amplitude, frequency and the work ratio of output pulse wave, amplify this output pulse wave via this current amplifier then, described light fixture is given in power supply again, makes this light fixture produce corresponding light quantity, light quality and illumination work ratio.