A kind of LED plant growth lamp
The utility model relates to the LED lighting field, specifically is meant a kind of LED lamp that is used for the plant light filling.
Led light source has characteristics such as energy-saving and environmental protection; And its spectral composition, intensity of illumination flexible and controllable; Therefore the LED illumination more and more receives people's attention as a kind of novel energy-saving environment-friendly product, its application also more and more widely, wherein plant light filling aspect is a new research field.Show that according to research specific red blue spectrum proportioning has significant promotion and regulating and controlling effect for growth and development of plant.Adopt existing application of LED plant growth lamp of fixing red/blue lamp pearl combination at present; It is main with simple products such as bulb and fluorescent tubes mainly; Directly utilize AC power; Adopt 0.06 watt of small light pearl or 1.00 watts of lamp pearls to process tubulose, discoid, bulb shape product, the technology that relates to module and light source control aspect is not arranged at present in fixedly ruddiness, the combination of blue-ray light pearl ratio.Can't satisfy the requirement of different floristics in different growth phases, different tissues position and breeding phase, different cultivation purposes in existing these LED plant growth lamp designs, the distribution consistency degree of different spectrum is also relatively poor; Forms such as bulb, fluorescent tube are unfavorable for the installation versatility of different facility space structures simultaneously.
Summary of the invention
The problem that the utility model need solve provides and a kind ofly can be applicable to different plants, the intensity of illumination LED plant growth lamp adjustable, that controllability is strong of the different growth and development stages of kindred plant.
For addressing the above problem; The technical scheme that the utility model is taked is: a kind of LED plant growth lamp; Comprise led light source and control circuit thereof; Said led light source comprises substrate and is installed on the LED lamp pearl on the substrate, the wavelength that said LED lamp pearl comprises red, blue bicolored light pearl and has a coordinate plant growth effect be in the lamp pearl of 320-380nm, 630nm, 730nm one or more.
Said plant growth lamp further comprises the lamp pearl of regulating vision colourity.
Concrete; The arrangement mode of lamp pearl is on the said substrate: red colored lamp pearl and blue lamp pearl are spaced; The blue lamp pearl is spaced with the fixed wave length lamp pearl with coordinate plant growth effect or adjusting vision colourity; The red colored lamp pearl is spaced with the lamp pearl of the fixed wave length with coordinate plant growth effect or adjusting vision colourity, and the red colored lamp pearl can adjacently be arranged.
The lamp pearl of concrete said adjusting vision colourity comprise wavelength be 540-560nm the green light pearl or/and colour temperature less than the white lamps pearl of 5000k.
Concrete, said control circuit comprises: MCU Main Processing Unit reaches with it and is connected the constant current output unit that receives its control, and said constant current output unit connects the led light source substrate; Said control circuit also is included as the voltage feed unit that the constant current output unit provides operating voltage, said voltage feed unit Adjustable Output Voltage; Said control circuit comprises three tunnel constant current output units, and it receives the control signal of MCU Main Processing Unit respectively and then controls red colored lamp pearl, blue lamp pearl respectively and have the coordinate plant growth effect or the lamp pearl of adjusting vision colourity; Said control circuit further comprises the wireless signal receiving element, and this unit is connected with MCU Main Processing Unit.
Compared with prior art, the beneficial effect of the said LED plant growth lamp of the utility model is: 1, be convenient in same facility space, carry out research, the production of multiple different light filling objects (plant); 2, can carry out the luminous environment optimization or the sequencing regulation and control of light filling object different developmental phases of the same race, improve the validity of luminous energy, promote growing of light filling object, shorten the production cycle; 3, can carry out photoperiodic induction or directly photoperiodic induction stimulation under the light filling condition according to the photoperiod characteristic of light filling object, effectively regulate and control the process of growing and the morphological feature of light filling object; 4, improve the service efficiency of facility, shorten standby time, reduce power consumption, reduce the integrated cost input.
On the other hand, said plant growth lamp is processed the module form, is beneficial to and splices and combines use, helps the streamline large-scale production, reduces production costs.
Description of drawings
Fig. 1 is that said plant growth lamp substrate of the utility model and basic onboard led lamp pearl are arranged the enforcement illustration;
Fig. 2 is that sketch map is used in said plant growth lamp combination;
Fig. 3 is said control circuit sketch map;
Fig. 4 is a voltage supply circuit sketch map in the said control circuit.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further to specify.
The said LED plant growth lamp of the utility model; Comprise led light source and control circuit thereof; Its light source is that the LED lamp pearl of different colours is arranged by ad hoc fashion; Make on its substrate that evenly distributes, and regulate and control promotion and the adjusting of the realizations such as luminous intensity of versicolor lamp pearl the plant growth state and the speed of growth through control circuit.Because the ruddiness blue spectrum is photosynthesis of plant and the main action spectrum that grows; Therefore fixedly install the lamp pearl of red blue two kinds of colors on the substrate; In addition according to the needs of the different growth phases of different plants or same kind of plant, arrange in pairs or groups other one or more have a lamp pearl of the fixed wave length that is fit to this plant or this growth period effect.For example wavelength is 320-380nm (ultraviolet system), 630nm (pink colour system), 730nm (infrared system).
The inherent colour that owing to human eyes under the above-mentioned illumination visual effect of plant obviously is different from plant under the natural environment in addition; Consider from visual effect and hommization; Can on substrate, increase 540-560nm (green system), colour temperature less than the lamp pearl that 5000k (white color system) etc. can improve the human eyes visual effect, increase the sight under the specific environment.
Like Fig. 1 is the arrangement enforcement illustration of said plant growth lamp substrate and basic onboard led lamp pearl.The substrate structure that is rectangle among the embodiment, a substrate is provided with 50 lamp pearls.The particular arrangement mode of said lamp pearl is: red colored lamp pearl and blue lamp pearl are spaced; The blue lamp pearl is spaced with the fixed wave length lamp pearl with coordinate plant growth effect; The red colored lamp pearl is spaced with the lamp pearl with fixed wave length of coordinate plant growth effect, and the red colored lamp pearl can adjacently be arranged.The said LED lamp of the utility model can be regarded a plant growth lamp module as, when needs light filling intensity or space are big, can said plant growth lamp permutation and combination be used together, and adjusting function is constant.The rectangular substrate structure of rule is convenient to single LED plant growth lamp is made up along its length or width in the present embodiment, and is as shown in Figure 2.Certain said substrate in combination also can be other shape, as long as each substrate is convenient to mutual combination and is used, the value volume and range of product of lamp pearl also can increase and decrease as required on the substrate.The arrangement mode of the pearl of lamp described in the utility model is a preferred arrangement.
Another innovative point of the utility model is the control circuit of said lamp.Like Fig. 3, said control circuit comprises: MCU Main Processing Unit and be connected three tunnel constant current output units that receive its control with it, the voltage feed unit of operating voltage is provided for the constant current output unit.Three tunnel constant current output units all connect the led light source substrate, and it receives the control signal of MCU Main Processing Unit respectively and then controls red colored lamp pearl, blue lamp pearl respectively and have coordinate plant growth effect lamp pearl; Said constant current output unit receives the pwm signal of main control unit, the adjustment size of current of each LED lamp pearl of flowing through according to the pulsewidth of pwm signal, thus reach the effect of light modulation.
Said control circuit also comprises the wireless signal receiving element that is connected with MCU Main Processing Unit, is convenient to the user realizes said LED plant growth lamp through remote controller control various adjustings.Be that the user passes through remote controller control, the parameters such as intensity of illumination of each color that needs are set, the wireless signal receiving element is transferred to MCU after receiving this signal, finally realizes light modulation by the corresponding pwm signal control of MCU decoding output constant current output unit.
MCU Main Processing Unit is through the PWM light modulation; Voltage is lied prostrate to changing between the constant current output unit supply voltage value and then the realization light modulation zero; Also be provided with the adjustable voltage supply circuit of voltage in the utility model, be used for to constant current output unit power supply, make like this dimming scope more greatly, more flexible.Said voltage supply circuit is as shown in Figure 4.Adopt the highly sensitive potentiometer Rw of 10 gears to regulate in the said circuit, potentiometer tip side Dimming connects the constant current output unit, and the constant current chip is the adjustment size of current of LED of flowing through according to gained voltage, thereby reaches the effect of light modulation.
Also be provided with open loop protection circuit, short-circuit protection circuit, current foldback circuit, thermal-shutdown circuit, temperature-compensation circuit in the said control circuit of the utility model.Therefore said plant growth lamp is safe, can be suitable for various adverse circumstances.
The not concrete functional module of introducing is functional module ripe in the prior art in the utility model, therefore repeats no more.
Above embodiment is merely the preferable embodiment of the utility model, not breaking away under the utility model design prerequisite its any minor variations of doing and being equal to replacement, all should belong to the protection domain of the utility model.