Non-constant current electric driving LED light-emitting device for plant lighting

A light-emitting device and plant lighting technology, applied in the field of plant lighting, can solve problems such as long cycle time, slow strobe irradiation, and stimulation of plant growth

Active Publication Date: 2018-06-22
ZHONGKE RARE EARTH (CHANGCHUN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this patent can stimulate the light and dark cycle of plants, the light and dark cycle time of this lighting system is 30 minutes, which is a long cycle time, which belongs to slow strobe irradiation, and cannot meet the needs of some plants for extremely fast strobe
Moreover, the luminous parameters in the bright period stage of this patent are constant, and the illumination cannot be changed according to the luminous curve during the bright period, so that it cannot effectively stimulate better growth of plants

Method used

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  • Non-constant current electric driving LED light-emitting device for plant lighting
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  • Non-constant current electric driving LED light-emitting device for plant lighting

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] figure 1 and figure 2 The basic structural parts of the LED lighting device of the present invention are shown. Such as figure 1 As shown, the circuit part connected to the LED lighting device includes a filter circuit 10 , a current limiting circuit 20 , a current control circuit 30 and an LED chip network 400 . The filter circuit 10 , the current limiting circuit 20 , the current control circuit 30 and the LED chip network 400 are serially connected in series, thereby eliminating radio interference and providing security for the LED chip network.

[0044]Preferably, the current control circuit 30 is used to control and divide the current, and control the current in the pulse period to be a non-constant current that changes according to a certain rule in at least two light-emitting stages. The current control circuit 30 at least includes a light engine module 300 . The light engine module 300 cuts the pulse current into two currents varying according to time in on...

Embodiment 2

[0059] This embodiment is a further improvement on Embodiment 1, and repeated content will not be repeated here.

[0060] Preferably, the preset pulse period lighting parameters of the present invention can be stored in the light engine module, or can be stored in the database 500 connected to the analysis module 100 . The database may be a database set in the current control circuit 30, or a third-party database. Preferably, the database is a cloud database.

[0061] Preferably, the analysis module 100 sends a matching request to the database 500 based on the plant parameters collected by the plant parameter collection module 200 to match at least one set of pulse period luminescence parameters corresponding to the plant parameters. Preferably, the database 500 stores pulse period lighting parameters for various growth stages of various plants. The analysis module 100 matches one set, two sets, three sets or even more pulse period lighting parameters from the database. Pre...

Embodiment 3

[0072] This embodiment is a further improvement on Embodiment 1 or Embodiment 2 and their combination, and the repeated content will not be repeated.

[0073] This embodiment describes the LED chips in the LED chip network in detail. The LED chip network includes at least blue, violet and / or ultraviolet LED chips coated with a luminescent coating. The luminescent coating includes a blue luminescent coating, a yellow luminescent coating and / or a red luminescent coating.

[0074] Preferably, the emission wavelength of the blue LED chip is 460 nanometers. The emission wavelength of the violet LED chip is 400nm. The emission wavelength of the ultraviolet LED chip is 254-365nm.

[0075] The LED light-emitting device formed by LED chips is composed of blue light, purple light or ultraviolet LED chips and blue light-emitting materials, green light-emitting materials, yellow light-emitting materials and / or red light-emitting materials. Wherein, the luminescent range of the yellow ...

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PUM

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Abstract

The invention relates to a non-constant current electric driving LED light-emitting device for plant lighting. The non-constant current electric driving LED light-emitting device at least comprises anoptical engine module and at least one group of LED chip network, wherein the at least one group of LED chip network is provided with a lighting driving circuit, the optical engine module is used forpartitioning a pulse current within a period into at least two controlled light-emitting stages and adjusting a light-emitting parameter related with time of each light-emitting stage according to change of an absorption parameter of plant leaves on light rays so as to form a group of pulse period light-emitting parameters related with the time, the LED chip network is used for generating controlled light of which the brightness can be changed within a pulse period in response to the pulse current of the optical engine module, and the light-emitting intensity of at least one light-emitting stage changes approximately to a zero-candela light-emitting curve. Various light-emitting curves are formed by dividing the pulse period into three light-emitting stages, the stroboscopic frequency ofthe LED light-emitting device is accelerated, so that plant can rapidly perform photosynthesis under stroboscopic stimulation, and the growth and mature time is shortened.

Description

technical field [0001] The invention relates to the technical field of plant lighting, in particular to a non-constant current electric drive LED lighting device for plant lighting and a manufacturing method thereof. Background technique [0002] Light Emitting Diode (Light Emitting Diode) is a new type of semiconductor lighting source, which has become a research hotspot in recent years due to its advantages of energy saving, environmental protection, long life and high luminous efficiency. In addition, with the development of semiconductor technology, LEDs are widely used in plant growth because of their pure spectrum, low energy consumption, and long life. The plant growth LED light uses LED as the light source, and its light can replace the sunlight needed by the law of plant growth, and it is a kind of lamp that creates an environment for plant growth and development. [0003] Photosynthesis is one of the indispensable and important factors affecting plant growth and d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00Y02B20/40
Inventor 李成宇张洪杰王森
Owner ZHONGKE RARE EARTH (CHANGCHUN) CO LTD
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