WO2021142714A1 - 一种组合式led植物补光系统 - Google Patents

一种组合式led植物补光系统 Download PDF

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Publication number
WO2021142714A1
WO2021142714A1 PCT/CN2020/072483 CN2020072483W WO2021142714A1 WO 2021142714 A1 WO2021142714 A1 WO 2021142714A1 CN 2020072483 W CN2020072483 W CN 2020072483W WO 2021142714 A1 WO2021142714 A1 WO 2021142714A1
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WIPO (PCT)
Prior art keywords
led
circuit
led light
plate
constant current
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PCT/CN2020/072483
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English (en)
French (fr)
Inventor
陈洪川
杨�远
李家钦
马兵
Original Assignee
深圳市朗文科技实业有限公司
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Filing date
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Application filed by 深圳市朗文科技实业有限公司 filed Critical 深圳市朗文科技实业有限公司
Priority to CA3106546A priority Critical patent/CA3106546A1/en
Priority to GB2100855.2A priority patent/GB2594550A/en
Priority to EP20837918.0A priority patent/EP3873180A4/en
Priority to US17/152,018 priority patent/US11895955B2/en
Publication of WO2021142714A1 publication Critical patent/WO2021142714A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
    • F21V21/116—Fixing lighting devices to arms or standards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/043—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures mounted by means of a rigid support, e.g. bracket or arm
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/345—Current stabilisation; Maintaining constant current
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/355—Power factor correction [PFC]; Reactive power compensation
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/39—Circuits containing inverter bridges
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/19—Controlling the light source by remote control via wireless transmission
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G7/00—Botany in general
    • A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
    • A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
    • 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

Definitions

  • the invention relates to the field of plant light supplementation, in particular to a combined LED plant light supplementation system using LEDs to supplement light for plants.
  • the lamps used to promote plant growth are a special kind of lamps. According to most plant growth laws, they must require sunlight.
  • the lamps used to promote plant growth use the principle of sunlight and use the emitted lights instead. Sunlight, to provide a good growth and development environment for plants, so as to achieve the effect of promoting plant growth and development.
  • High-power gas discharge lamps, metal halide lamps, etc. are often used to supplement light for plants because they produce strong light.
  • the light wavelength of lamps used to promote plant growth is very suitable for plant growth, flowering and fruiting.
  • indoor plants will grow worse and worse with time. The main reason is the lack of light irradiation.
  • the LED lights suitable for the required spectrum of plants can be irradiated to promote their growth and development.
  • Chinese Patent Publication No. CN 208566289U discloses an LED plant lighting lamp.
  • the LED plant lighting lamp includes a sliding rail and an LED lamp body; the sliding rail is used to be fixed in the factory building; the LED The lamp body is slidably arranged on the sliding rail along the sliding rail.
  • the LED lamp body is arranged on the sliding rail, which is convenient for the user to slide the LED lamp body away from the plant stand along the sliding rail and then replace it, avoiding the restriction of the plant stand when replacing the LED lamp body, and is convenient for the user to operate.
  • the present invention provides a combined LED plant lighting system capable of adjusting the power of the LED plant lamp.
  • a combined LED plant lighting system comprising an LED light rail and at least one LED light bar connected longitudinally along the LED light rail;
  • a remote control signal receiving device for receiving remote control signals is also provided in the track, and a processing device for processing the remote control signal received by the remote control signal receiving device to generate a control signal for controlling the power of the LEDs in each LED light bar.
  • the light bar is connected;
  • the LED light bar is provided with an LED constant current power supply and a constant current control circuit, the constant current control circuit is connected to the processing device, and the LED light bar (1 )
  • the power control signal controls the LED constant current power supply.
  • a remote control method is adopted to adjust the power of the LED light bar, which overcomes the deficiencies in the prior art.
  • the signal required to control the power of the LED light bar in the remote control signal is converted into a PWM signal and sent to the constant current control circuit.
  • the empty ratio is the percentage of the maximum power that controls the LED light bar.
  • the LED constant current power supply includes an EMI filter rectifier circuit, a CRMPFC circuit, an LLC half-bridge resonant circuit and an output rectifier filter circuit;
  • the commercial power is filtered and rectified by the EMI filter rectifier circuit Later, it enters the CRMPFC circuit to form a high-voltage direct current signal and enters the LLC half-bridge resonant circuit.
  • the switch of the LLC half-bridge resonant circuit is controlled by the PWM signal received by the constant current control circuit.
  • the resonant signal output by the LLC half-bridge resonant circuit is rectified and filtered by the output rectifier filter circuit.
  • the above-mentioned combined LED plant light supplement system further includes a negative feedback circuit, the negative feedback circuit includes an LED constant current sampling circuit, and the output of the LED constant current sampling circuit is connected to a constant current control circuit.
  • the flow control circuit adjusts the PWM signal according to the output of the LED constant current sampling circuit.
  • the LLC half-bridge resonant circuit has two resonant frequencies, one is around 45KHz and the other is around 120KHz, and the working frequency is between these two resonant frequencies.
  • the connection structure of the LED light bar slidably connected along the longitudinal direction of the LED light rail includes a buckle for connecting the LED light rail and the LED light bar
  • the buckle includes: The hook plate, the pressing plate and the hanging plate, one end of the hook plate is provided with a hook, the other end of the hook plate is provided with a hook plate connecting ear with a mounting hole, one end of the pressing plate is provided with a pressing plate connecting ear, and the pressing plate connecting ear is provided with a hook in parallel
  • the board connection hole and the hanging board connection hole, one end of the hanging board is provided with a hanging piece perpendicular to the main body, the other end of the hanging board is provided with a hanging board connecting ear with a mounting hole, and the hook of the hook plate is arranged in the same direction as the hanging piece of the pressure plate.
  • the connecting ears of the pressing plate are respectively connected with the connecting ears of the hook plate and the connecting trunnion hole of the hanging plate to form a structure in which the hook plate rotates around the pressing plate and the pressing plate drives the hook plate to rotate around the hanging plate.
  • the surface of the LED light rail is provided with the hook plate.
  • the convex corrugation corresponding to the hook, the surface of the light bar is provided with a slot corresponding to the hanging piece of the hanging plate, one end of the buckle is hooked to the convex corrugation of the LED light rail (1) through the hook, and the buckle is The other end is plugged into the slot of the LED light bar through a hanging piece.
  • the distance between the connecting ears of the pressing plate is greater than the distance between the connecting ears of the hook plate
  • the distance between the connecting ears of the hanging plate is greater than the distance between the connecting ears of the pressing plate
  • the other end of the pressing plate is provided with a bent hand pressing part.
  • Figure 1 is a schematic block diagram of the combined LED plant light supplement system of the present invention.
  • Figure 2 is a structural diagram of the combined LED plant lighting system of the present invention.
  • Fig. 3 is a partial enlarged view A of Fig. 2.
  • Fig. 4 is a schematic diagram of the structure of the buckle used in the present invention.
  • Fig. 5 is a view from the direction B of Fig. 4.
  • Fig. 6 is a view from the direction C of Fig. 4.
  • Embodiment 1 is a detachable and freely combined LED plant lighting system. As shown in Figures 1 and 2, a suitable number of LED light bars can be freely combined on the LED light rail 1.
  • the LED light bar 2 in the detachable and freely combinable LED plant supplement light system includes light bars of various spectrums, such as white light, red light, blue light, ultraviolet light, etc., in the mains power adapter of the LED light rail 1. , Transfer the mains power to all the LED light strips 2 connected by sliding on it.
  • a remote control signal receiving device in the LED light rail 1 to receive the remote control signal sent by the remote control.
  • the remote control signal received by the signal receiving device is processed to generate a control signal for controlling the power of the LED in each LED light bar 2.
  • the processing device is respectively connected to each LED light bar 2; the LED light bar 2 is provided with an LED constant current power supply and a constant current control circuit.
  • the constant current control circuit is connected to the processing device and receives the information about the LED light bar 1 sent by the processing device.
  • the power control signal controls the LED constant current power supply.
  • the LED plant light dimming control process the operator inputs a brightness value of 0% to 100% through the man-machine interface of the SLC controller, or inputs a brightness value of 0% to 100% through other remote controllers, and the SLC controls
  • the remote controller or remote control will send out a 0-10V analog signal.
  • the remote control signal receiving device of LED light rail 1 receives it and transmits it to the processing device. After processing in the processing device, the received 0-10V analog signal is converted into The 0% ⁇ 100% PWM signal is sent to the constant current control circuit of the LED light bar, and the constant current control circuit controls the current on the LED from 0 ⁇ 2A according to the 0% ⁇ 100% PWM signal to realize the brightness of the LED. It varies from 0% to 100%.
  • the signal required to control the power of the LED light bar 2 in the remote control signal is converted into a PWM signal and sent to the constant current control circuit.
  • the duty cycle of the PWM signal is the one that controls the maximum power of the LED light bar 2 percentage.
  • the LED constant current power supply includes an EMI filter rectifier circuit, a CRMPFC circuit, an LLC half-bridge resonant circuit and an output rectifier filter circuit; the mains is filtered and rectified by the EMI filter rectifier circuit and then enters the CRMPFC circuit to form a high voltage
  • the direct current signal enters the LLC half-bridge resonant circuit.
  • the switch of the LLC half-bridge resonant circuit is controlled by the PWM signal received by the constant current control circuit.
  • the resonant signal output by the LLC half-bridge resonant circuit is rectified and filtered by the output rectifier filter circuit and then connected to the LED.
  • the LED needs a constant current source capable of constant current to work stably, the rectified voltage is a voltage source and the voltage is unstable. Direct driving will burn the LED. Therefore, the addition of PFC can improve the power factor and reduce the pollution of harmonic currents on the grid, and the role of adding the LLC half-bridge resonant circuit is to convert the constant voltage after rectification, filtering and PFC boost into voltage and current suitable for stable operation of LEDs.
  • the LLC half-bridge resonant circuit has two resonant frequencies, one is around 45KHz and the other is around 120KHz, and the operating frequency is between these two resonant frequencies.
  • the LED constant current power supply of this embodiment also has an output rectifier filter circuit that rectifies and filters the resonant signal output by the LLC half-bridge resonant circuit.
  • the constant DC voltage after the PFC boost is stepped down and inverted by the LLC circuit, it will become a high-frequency AC, which needs to be rectified and filtered before it can be converted into a voltage and current value suitable for LED operation.
  • EMI filter rectification is to rectify the power frequency AC voltage input from the power grid into a one-way steamed bun wave, and filter out high frequency harmonics.
  • the LED constant current power supply of this embodiment also includes a negative feedback circuit.
  • the negative feedback circuit includes an LED constant current sampling circuit.
  • the output of the LED constant current sampling circuit is connected to a constant current control circuit.
  • the constant current control circuit samples according to the LED constant current. The output of the circuit adjusts the PWM signal.
  • the LED light rail 1 there is also its own voltage stabilizing circuit, which converts the mains power into the DC power supply required by the processing device, namely MCU, etc.
  • the voltage stabilizing circuit includes EMI filtering and rectifying to rectify and filter the 100-270V AC mains power. Circuit and AC-DC conversion auxiliary power supply.
  • the AC-DC conversion auxiliary power supply is a low-power power supply of flyback topology, which is used to convert the input 100 ⁇ 277V alternating current into 12V direct current to the light rail, including the MCU in the light rail.
  • the processing device inside is powered.
  • the input of LED light rail 1 is AC, which is filtered and rectified by the EMI filter rectifier circuit to become a high-voltage DC of 141 ⁇ 390V. This voltage is too high and no current is directly supplied to the MCU controller. It must be controlled by the MCU after the auxiliary power supply is stepped down. ⁇ Device use.
  • the MCU in the processing device outputs the PWM signal only a 1KHz fixed frequency signal, and the control LLC is a variable frequency signal from 45kHZ to 300kHz, so it cannot be used directly. Therefore, the constant current control circuit is a circuit that integrates sampling, error amplification, and loop compensation. Its function is to sample the current output to the LED, compare and amplify the set value, and then the amplified error The signal is compared with the PFM comparator to obtain a set of PFM signals to drive the LLC half-bridge to work within the frequency range required by the set current value. In the negative feedback circuit, the sampling circuit samples the current output to the LED light bar. In the constant current control circuit, the sampling signal is used to modify the duty cycle of the PWM.
  • 8 LED light bars 2 can be connected to one LED light rail 1, and the LED light rail 1 is connected to the mains, and the mains is switched, and the mains is used
  • the power frequency cable is transferred to each LED light bar 2, and rectification and filtering are performed in each LED light bar 2 to form a constant current power supply required by the LED.
  • a control signal for controlling the power of each LED light bar 2 is also generated in the LED light rail 1, and transmitted to the LED light bar by a signal cable (RJ11).
  • connection structure of the LED light bar 2 slidably connected along the longitudinal direction of the LED light rail 1 includes a buckle 3 for connecting the LED light rail 1 and the LED light bar 2, including: a hook plate 3-1, a pressing plate 3- 2 and hanging board 3-3.
  • One end of the hook plate 3-1 is provided with a hook 3-1-1
  • the other end of the hook plate 3-1 is provided with a hook plate connecting ear 3-1-2 with a mounting hole.
  • One end of the pressure plate 3-2 is provided with a pressure plate connecting ear 3-2-1.
  • Hanging board connection hole 3-2-1-2 is set at the end.
  • the other end of the pressing plate 3-2 of this embodiment is preferably provided with a bent hand pressing portion 3-2-2.
  • One end of the hanging plate 3-3 is provided with a hanging piece 3-3-1 perpendicular to the main body.
  • the hanging piece 3-3-1 and the main body of the hanging plate 3-3 are L-shaped, and the other end of the hanging plate 3-3 has a mounting hole.
  • the hanging plate is connected to the ear 3-3-2.
  • the hook 3-1-1 of the hook plate 3-1 is arranged in the same direction as the hanger 3-3-1 of the pressure plate 3-3.
  • the pressure plate connecting ears 3-2-1 are respectively connected with the hook plate connecting ears 3-1-2 and the hanging plate connecting ears 3-3-2 shaft holes to form the hook plate 3-1 to rotate around the pressure plate 3-2 and the pressure plate 3-2 A structure that drives the hook plate 3-1 to rotate around the hanging plate 3-3.
  • the hook plate 3-1 and the pressing plate 3-2 are movably connected via the hook plate connecting shaft 3-5.
  • the pressing plate 3-2 and the hanging plate 3-3 are movably connected by the hanging plate connecting shaft 3-4.
  • the preferred spacing of the pressure plate connecting ears 3-2-1 in this embodiment is greater than the spacing of the hook plate connecting ears 3-1-2, and the spacing of the hanging plate connecting ears 3-3-2 is greater than the pressure plate connecting ears 3-2.
  • the spacing of -1 forms a structure in which the hook plate 3-1 is installed in the pressing plate 3-2, and the pressing plate 3-2 is installed in the hanging plate 3-3.
  • the surface of the LED light rail 1 is provided with a convex flute 1-1 corresponding to the hook 3-1-1 of the hook plate 3-1.
  • the height of the convex flute 1-1 should meet the size requirements of the hook 3-1-1 that can be hooked tightly.
  • the surface of the LED light bar 2 is provided with a slot 2-1 corresponding to the hanging piece 3-3-1 of the hanging board 3-3.
  • One end of the buckle 3 is hooked with the protrusion 1-1 of the LED light rail 1 through the hook 3-1-1, and the other end of the buckle 3 is connected to the slot 3-1 of the LED light bar 2 through the hanging piece 3-3-1 Plug in.

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  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Botany (AREA)
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Abstract

一种组合式LED植物补光系统，包括LED灯轨（1）和沿LED灯轨（1）纵向滑动连接的至少一根LED灯条（2）；在LED灯轨（1）内还设置有接收遥控信号的遥控信号接收装置，对遥控信号接收装置接收的遥控信号进行处理产生控制各LED灯条（2）中LED功率的控制信号的处理装置，处理装置分别与各LED灯条（2）相连；LED灯条（2）中设置有LED恒流电源和恒流控制电路，恒流控制电路与处理装置相连，接受处理装置发出的关于该LED灯条（2）的功率的控制信号对LED恒流电源进行控制。该组合式LED植物补光系统采用遥控方式调节LED灯条的功率，使其在不同的时刻发光功率都适合于植物生长。

Description

一种组合式LED植物补光系统 技术领域
本发明涉及植物补光领域，特别涉及一种利用LED对植物补光的组合式LED植物补光系统。
背景技术
目前，用于促进植物生长的灯具是一种特殊的灯具，依照绝大多数的植物生长规律必须需要太阳光，而用于促进植物生长的灯具就是利用太阳光的原理，利用发出的灯光来代替太阳光，以给植物提供良好的生长发育环境，从而实现促进植物生长发育的效果。
大功率气体放电灯、金卤灯等由于产生光线强烈，经常用于植物补光。但经过应用测试，用于促进植物生长的灯具的灯光波长非常适合植物的生长、开花和结果。一般室内植物，会随着时间而长势越来越差，主要原因就是缺少光的照射，通过适合植物所需光谱的LED灯照射，可以促进其生长和发育。把这种高效光源系统应用到大棚、温室等设施等农业生产上，一方面可以解决日照不足导致番茄、黄瓜等大棚蔬菜口感下降的弊端，另一方面还可以使冬季大棚茄果类蔬菜提前到春节前后上市，从而达到反季节培植的目的。
目前，LED植物照明灯也不少，中国专利公开号CN 208566289U就公开了一种LED植物照明灯，该LED植物照明灯，其包括滑轨和LED灯体；滑轨用于固定于厂房；LED灯体能够沿滑轨滑动地设置于滑轨。这样的LED植物照明灯中，LED灯体设置于滑轨，便于用户将LED灯体沿滑轨滑至远离植物架后进行更换，避免更换LED灯体时受植物架限制，方便用户操作。
但是，在实践过程中往往需要对LED植物照明灯进行调节，使其在不同的时刻发光功率都适合于植物生长。
发明内容
本发明是针对目前LED植物照明灯的上述不足，提供一种可以调节LED植物灯功率的组合式LED植物补光系统。
本发明为实现其技术目的所采用的技术方案是：一种组合式LED植物补光系统，包括LED灯轨和沿LED灯轨纵向滑动连接的至少一根LED灯条；在所述的LED灯轨内还设置有接收遥控信号的遥控信号接收装置，对遥控信号接收装置接收的遥控信号进行处理产生控制各LED灯条中LED功率的控制信号的处理装置，所述的处理装置分别与各LED灯条相连；所述的LED灯条中设置有LED恒流电源和恒流控制电路，所述的恒流控制电路与所 述的处理装置相连，接受处理装置发出的关于该LED灯条(1)的功率的控制信号对LED恒流电源进行控制。
本发明中采用遥控方式调节LED灯条的功率，克服现有技术中的不足。
进一步的，上述的组合式LED植物补光系统中：在所述的处理装置中，将遥控信号中要求控制LED灯条功率大小的信号转换成PWM信号发送到恒流控制电路，PWM信号的占空比为控制LED灯条的最大功率的百分比。
进一步的，上述的组合式LED植物补光系统中：所述的LED恒流电源包括EMI滤波整流电路、CRMPFC电路、LLC半桥谐振电路和输出整流滤波电路；市电经由EMI滤波整流电路滤波整流以后进入CRMPFC电路形成高压直流电信号进入LLC半桥谐振电路中，LLC半桥谐振电路的开关由恒流控制电路接收的PWM信号控制，LLC半桥谐振电路输出的谐振信号由输出整流滤波电路整流滤波后接LED。
进一步的，上述的组合式LED植物补光系统中：还包括负反馈电路，所述的负反馈电路包括LED恒流采样电路，所述的LED恒流采样电路的输出接恒流控制电路，恒流控制电路根据LED恒流采样电路的输出调整PWM信号。
进一步的，上述的组合式LED植物补光系统中：所述的LLC半桥谐振电路有两个谐振频率，一个在45KHz附近，一个在120KHz附近，工作频率在这两个谐振频率之间。
进一步的，上述的组合式LED植物补光系统中：沿LED灯轨纵向滑动连接的LED灯条的连接结构包括用于连接LED灯轨和LED灯条的搭扣，所述的搭扣包括：钩板、压板和挂板，所述的钩板一端设有弯钩，钩板另一端设有带安装孔的钩板连接耳，压板一端设有压板连接耳，压板连接耳上平行设有钩板连接孔和挂板连接孔，挂板一端设有与主体垂直的挂片，挂板另一端设有带安装孔的挂板连接耳，钩板的弯钩与压板的挂片同向设置，压板连接耳分别与钩板连接耳和挂板连接耳轴孔连接，形成钩板绕压板转动、压板带动钩板绕挂板转动的结构，所述的LED灯轨的表面设有与钩板的弯钩相对应的凸楞，所述的灯条的表面设有与挂板的挂片相对应的插槽，搭扣一端通过弯钩与LED灯轨(1)的凸楞钩接，搭扣另一端通过挂片与LED灯条的插槽插接。
进一步的，上述的组合式LED植物补光系统中：所述的压板连接耳的间距大于钩板连接耳的间距，挂板连接耳的间距大于压板连接耳的间距。
进一步的，上述的组合式LED植物补光系统中：所述的压板的另一端设有弯折的手压部。
下面结合附图和具体实施方式对本发明进行进一步的说明。
附图说明
附图1是本发明组合式LED植物补光系统原理框图。
附图2是本发明组合式LED植物补光系统结构图。
附图3是附图2的局部放大图A。
附图4是本发明使用的搭扣的结构示意图。
附图5是附图4的B向视图。
附图6是附图4的C向视图。
具体实施方式
实施例1，本实施例是一种可拆卸可自由组合的LED植物补光系统，如图1和图2所示，在LED灯轨1上可以自由组合数量合适的LED灯条，本实施例的可拆卸可自由组合的LED植物补光系统中的LED灯条2包括各种光谱的灯条，如白光，红光，蓝光，紫外光等，在LED灯轨1中市电电源转接器，将市电转接到其上滑动连接的所有LED灯条2中，另外，在LED灯轨1中还有一个遥控信号接收装置，接收由遥控器发出的遥控信号，另外，还有对遥控信号接收装置接收的遥控信号进行处理产生控制各LED灯条2中LED功率的控制信号的处理装置。处理装置分别与各LED灯条2相连；在LED灯条2中设置有LED恒流电源和恒流控制电路，恒流控制电路与处理装置相连，接受处理装置发出的关于该LED灯条1的功率的控制信号对LED恒流电源进行控制。在遥控的过程中通过对不同光谱的LED灯条的功率调整，可以调整整个系统的发光频谱，以适合于植物生长。
本实施例中，LED植物灯调光控制过程：操作员通SLC控制器的人机界面输入一个0％～100％的亮度值或者其它遥控器输入一个0％～100％的亮度值，SLC控制器或者遥控器就会发出一个0～10V的模拟信号，LED灯轨1的遥控信号接收装置接收后，传送给处理装置，在处理装置中处理后，将收到的0～10V模拟信号转化成0％～100％的PWM信号发给LED灯条的恒流控制电路，恒流控制电路根据0％～100％的PWM信号控制LED上的电流从0～2A的范围变化，从而实现LED的亮度从0％～100％的范围变化。本实施例中，处理装置中，将遥控信号中要求控制LED灯条2功率大小的信号转换成PWM信号发送到恒流控制电路，PWM信号的占空比为控制LED灯条2的最大功率的百分比。
如图1所示，本实施例中，LED恒流电源包括EMI滤波整流电路、CRMPFC电路、LLC半桥谐振电路和输出整流滤波电路；市电经由EMI滤波整流电路滤波整流以后进入CRMPFC电路形成高压直流电信号进入LLC半桥谐振电路中，LLC半桥谐振电路的开关由恒流控制电路接收的PWM信号控制，LLC半桥谐振电路输出的谐振信号由输出整流滤波电 路整流滤波后接LED。由于LED需要一个能恒定电流的恒流源才能稳定工作，整流后的电压是个电压源且电压不稳定，直接驱动会烧坏LED。因此，加入PFC可以提高功率因数减少谐波电流对电网的污染，而加入LLC半桥谐振电路的作用是将整流滤波及PFC升压后的恒定电压，转化成适合LED稳定工作的电压与电流。这里，LLC半桥谐振电路有两个谐振频率，一个在45KHz附近，一个在120KHz附近，工作频率在这两个谐振频率之间。
本实施例的LED恒流电源中除了对100～270V交流电进行滤波整流的EMI滤波整流电路外，还具有对LLC半桥谐振电路输出的谐振信号进行整流滤波的输出整流滤波电路。PFC升压后的恒定直流电压通过LLC电路降压逆变后，会变成高频的交流电，需要整流滤波后才能转化成适合LED工作的电压与电流值。EMI滤波整流是将电网输入的工频交流电压整流成单向的馒头波，及将高频谐波过滤掉。
本实施例的LED恒流电源中还包括负反馈电路，负反馈电路包括LED恒流采样电路，所述的LED恒流采样电路的输出接恒流控制电路，恒流控制电路根据LED恒流采样电路的输出调整PWM信号。
在LED灯轨1中，也有自己的稳压电路，将市电转换成处理装置也就是MCU等所需要的直流电源，该稳压电路包括对100～270V交流市电进行整流滤波的EMI滤波整流电路和AC-DC转换辅助电源，这里，AC-DC转换辅助电源是一种反激拓扑的小功率电源，用来将输入的100～277V交流电转化成12V的直流电给灯轨里的包括MCU在内的处理装置供电。LED灯轨1的输入是交流电，经EMI滤波整流电路滤波整流后变成141～390V的高压直流电，这个电压太高无流直接给MCU控制器供电，必须经过辅助电源降压后才能给MCU控制器使用。
本实施例中，这里LED灯轨中，处理装置中的MCU输出的就是PWM信号只是一个1KHz的定频信号，而控制LLC的是从45kHZ～300kHz的可变频信号，所以无法直接使用。因此，恒流控制电路是一个集采样，误差放大，与环路补偿于一体的电路，其作用是，采样输出给LED的电流，与设定值做比较与放大，再将这个放大后的误差信号与PFM比较器作比较，得到一组PFM信号驱动LLC半桥在设定的电流值所需的频率范围内工作。负反馈电路中，采样电路是采样输出给LED灯条的电流，在恒流控制电路中，采样信号用于修正PWM的占空比。
本实施例的组合式LED植物补光系统中，一根LED灯轨1下可以连接8根LED灯条2，LED灯轨1与市电相接，对市电进行转接，将市电采用工频电缆转接到各LED灯条2中，在各LED灯条2中进行整流滤波等形成LED所需要的恒流电源。另外，在LED灯轨1 中还产生控制各LED灯条2中功率的控制信号，利用信号电缆(RJ11)传送给LED灯条中。
本实施例中，沿LED灯轨1纵向滑动连接的LED灯条2的连接结构包括用于连接LED灯轨1和LED灯条2的搭扣3，包括：钩板3-1、压板3-2和挂板3-3。钩板3-1一端设有弯钩3-1-1，钩板3-1另一端设有带安装孔的钩板连接耳3-1-2。压板3-2一端设有压板连接耳3-2-1。压板连接耳3-2-1上平行设有钩板连接孔3-2-1-1和挂板连接孔3-2-1-2，钩板连接孔3-2-1-1设置在中部，挂板连接孔3-2-1-2设置在端部。为便于压紧压板3-2，本实施例优选的压板3-2的另一端设有弯折的手压部3-2-2。挂板3-3一端设有与主体垂直的挂片3-3-1，挂片3-3-1与挂板3-3主体呈L型，挂板3-3另一端设有带安装孔的挂板连接耳3-3-2。
钩板3-1的弯钩3-1-1与压板3-3的挂片3-3-1同向设置。压板连接耳3-2-1分别与钩板连接耳3-1-2和挂板连接耳3-3-2轴孔连接，形成钩板3-1绕压板3-2转动、压板3-2带动钩板3-1绕挂板3-3转动的结构。在本实施例中，钩板3-1与压板3-2通过钩板连接轴3-5活动连接。压板3-2与挂板3-3通过挂板连接轴3-4活动连接。为便于组装，本实施例优选的压板连接耳3-2-1的间距大于钩板连接耳3-1-2的间距，挂板连接耳3-3-2的间距大于压板连接耳3-2-1的间距，形成钩板3-1安装在压板3-2内、压板3-2安装在挂板3-3内的结构。
所述的LED灯轨1的表面设有与钩板3-1的弯钩3-1-1相对应的凸楞1-1。凸楞1-1的高度应满足弯钩3-1-1可以钩紧的尺寸要求。所述的LED灯条2的表面设有与挂板3-3的挂片3-3-1相对应的插槽2-1。搭扣3一端通过弯钩3-1-1与LED灯轨1的凸楞1-1钩接，搭扣3另一端通过挂片3-3-1与LED灯条2的插槽3-1插接。
对LED灯轨1与LED灯条2进行固定安装时，首先，按安装位置摆放LED灯轨1与LED灯条2；然后，将搭扣3的挂片3-3-1插入LED灯条2的插槽2-1内，并向前推进搭扣3，使弯钩3-1-1位于LED灯轨1的凸楞1-1上方；最后，将压板3-2的手压部3-2-2向下按压，压板3-2、钩板3-1相对挂板3-3转动过程中，弯钩3-1-1与LED灯轨1的凸楞1-1紧密贴合，通过搭扣3将LED灯轨1与LED灯条2固定形成一个整体。整个安装过程，简单、灵活、快捷、高效。

Claims (8)

  1. 一种组合式LED植物补光系统，包括LED灯轨(1)和沿LED灯轨(1)纵向滑动连接的至少一根LED灯条(2)；其特征在于：
    在所述的LED灯轨(1)内还设置有接收遥控信号的遥控信号接收装置，对遥控信号接收装置接收的遥控信号进行处理产生控制各LED灯条(2)中LED功率的控制信号的处理装置，所述的处理装置分别与各LED灯条相连；
    所述的LED灯条(2)中设置有LED恒流电源和恒流控制电路，所述的恒流控制电路与所述的处理装置相连，接受处理装置发出的关于该LED灯条(2)的功率的控制信号对LED恒流电源进行控制。
  2. 根据权利要求1所述的组合式LED植物补光系统，其特征在于：在所述的处理装置中，将遥控信号中要求控制LED灯条(2)功率大小的信号转换成PWM信号发送到恒流控制电路，PWM信号的占空比为控制LED灯条(2)的最大功率的百分比。
  3. 根据权利要求2所述的组合式LED植物补光系统，其特征在于：所述的LED恒流电源包括EMI滤波整流电路、CRMPFC电路、LLC半桥谐振电路、输出整流滤波电路，市电经由EMI滤波整流电路滤波整流以后进入CRMPFC电路形成高压直流电信号进入LLC半桥谐振电路中，LLC半桥谐振电路的开关由恒流控制电路接收的PWM信号控制，LLC半桥谐振电路输出的谐振信号由输出整流滤波电路整流滤波后接LED。
  4. 根据权利要求3所述的组合式LED植物补光系统，其特征在于：还包括负反馈电路，所述的负反馈电路包括LED恒流采样电路，所述的LED恒流采样电路的输出接恒流控制电路，恒流控制电路根据LED恒流采样电路的输出调整PWM信号。
  5. 根据权利要求3所述的组合式LED植物补光系统，其特征在于：所述的LLC半桥谐振电路有两个谐振频率，一个在45KHz附近，一个在120KHz附近，工作频率在这两个谐振频率之间。
  6. 根据权利要求1至5中任一所述的组合式LED植物补光系统，其特征在于：沿LED灯轨(1)纵向滑动连接的LED灯条(2)的连接结构包括用于连接LED灯轨(1)和LED灯条(2)的搭扣，所述的搭扣(3)包括：钩板(3-1)、压板(3-2)和挂板(3-3)，所述的钩板(3-1)一端设有弯钩(3-1-1)，钩板(3-1)另一端设有带安装孔的钩板连接耳(3-1-2)，压板(3-2)一端设有压板连接耳(3-2-1)，压板连接耳(3-2-1)上平行设有钩板连接孔(3-2-1-1)和挂板连接孔(3-2-1-2)，挂板(3-3)一端设有与主体垂直的挂片(3-3-1)，挂板(3-3)另一端设有带安装孔的挂板连接耳(3-3-2)，钩板(3-1)的弯钩(3-1-1)与压板(3-3)的挂片(3-3-1)同向设置，压板连接耳(3-2-1)分别与钩板连接耳(3-1-2)和挂板连接耳 (3-3-2)轴孔连接，形成钩板(3-1)绕压板(3-2)转动、压板(3-2)带动钩板(3-1)绕挂板(3-3)转动的结构，所述的LED灯轨(1)的表面设有与钩板(3-1)的弯钩(3-1-1)相对应的凸楞(1-1)，所述的灯条(2)的表面设有与挂板(3-3)的挂片(3-3-1)相对应的插槽(2-1)，搭扣(3)一端通过弯钩(3-1-1)与LED灯轨(1)的凸楞(1-1)钩接，搭扣(3)另一端通过挂片(3-3-1)与LED灯条(2)的插槽(2-1)插接。
  7. 根据权利要求6所述的组合式LED植物补光系统，其特征在于：所述的压板连接耳(3-2-1)的间距大于钩板连接耳(3-1-2)的间距，挂板连接耳(3-3-2)的间距大于压板连接耳(3-2-1)的间距。
  8. 根据权利要求6所述的组合式LED植物补光系统，其特征在于：所述的压板(3-2)的另一端设有弯折的手压部(3-2-2)。
PCT/CN2020/072483 2020-01-15 2020-01-16 一种组合式led植物补光系统 WO2021142714A1 (zh)

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