CN218523454U

CN218523454U - Greenhouse lighting system

Info

Publication number: CN218523454U
Application number: CN202222286531.4U
Authority: CN
Inventors: 王森; 杨其长; 李宗耕; 周成波
Original assignee: Institute of Urban Agriculture of Chinese Academy of Agricultural Sciences
Current assignee: Institute of Urban Agriculture of Chinese Academy of Agricultural Sciences
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-02-24
Anticipated expiration: 2032-08-29

Abstract

The utility model relates to a greenhouse lighting system, including the light-emitting structure that is used for producing light with the illumination and is used for guiding the emergent light structure of light outgoing. The light emitting structure includes a light emitting element and a fixing plate for mounting the light emitting element. The fixed plate includes first axis, and the fixed plate has first region, second region and third region along first axis. First lamp and the second lamp of different quantity proportions set up respectively on first region, second area and the third region, when the light-emitting structure removed to overlap with the different regions of fixed plate, lighting system can jet out the light of different color ratios. The utility model discloses compare with the current method that can only simulate single sunlight factor, adopt simple mobile structure to realize simulating multiple sunlight factors such as the illumination intensity change of sunlight, illumination angle change and irradiant color ratio change simultaneously, can simulate the sunlight irradiation plant more truly when simple structure, promote vegetation.

Description

Greenhouse lighting system

Technical Field

The utility model relates to the technical field of lamps and lanterns, especially, relate to a greenhouse lighting system.

Background

Red and blue light are the most important lights to help plants grow robustly, and they can promote the accumulation of plant biomass and increase yield. When the plant receives more red light, it will prevent the chlorophyll from decomposing, and more chlorophyll is used to convert the light energy into chemical energy, so that the plant gets more energy. Blue light can promote plants to produce more chlorophyll, helping seedlings to better absorb and utilize photosynthetic light energy, and enabling plants to grow and mature at a faster rate. The ratio of red/blue light required by the plant at different growth stages is different, and providing the plant with different ratios of red/blue light at different time periods or different time periods within a day can promote plant growth.

The existing sunlight simulating device simulates the sunlight from the change of the intensity of the illumination and the change of the illumination angle. For example, CN201339834 discloses a sunlight simulating LED combination lamp, which comprises a lamp body and a light emitting source, and is characterized in that the light emitting source is a group of warm white LED lamps and a group of orange LED lamps, and the brightness of the warm white LED lamps and the orange LED lamps is adjusted according to different PWM outputted by an MCU. The prior art simulates the illumination intensity change of sunlight in different time periods of one day by adjusting the brightness intensity of the LED lamp, but the prior art has high requirement on the LED lamp, cannot find out control problems in time, and particularly influences the test conclusion easily in a test greenhouse.

CN204084026U discloses a plant growth lamp lampshade with an automatic light angle adjusting function, which comprises a lampshade, a light source controller and a rotating mechanism, wherein the light source is arranged in the lampshade, the lampshade comprises a top plate and side plates, the side plates are respectively hinged to the left side and the right side of the top plate through rotating shafts, and transmission gears are arranged at two ends of each rotating shaft; the light source controller is arranged at the upper end of the top plate and forms a series circuit with the light source, the rotating mechanism is respectively connected with the rotating shafts on the two sides, the rotating mechanism is composed of a driving motor, a driving gear and a motor controller, the driving motor is arranged above the top plate and forms a series circuit with the motor controller, and the driving gear is arranged on the rotating shaft of the driving motor and is matched and connected with the transmission gear. This prior art changes the angle of illumination of the light of shining the plant through changing the lamp shade rotation, nevertheless because the whole light quantity of device is fixed, under the condition that the scope of illumination reduces, the light intensity must increase, consequently can't accomplish regulation and control illumination intensity when angle of adjustment.

Besides the change of the illumination angle and the illumination intensity, the ratio of the sunlight to the light of each color in a day also changes. Sunlight is more intense in the morning or evening due to its more diffuse scattering through most of the atmosphere as it is closer to the horizon during the morning or evening, and is more intense in the morning or evening, and more intense in the daytime during the daytime.

In the prior art, when sunlight is simulated, only relatively single factors such as illumination angles or illumination intensity can be simulated, and multiple factors need to be simulated by combining a control algorithm or a more intelligent light-emitting element, so that the cost is increased, the structure is complex and the use is inconvenient.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor studied a lot of documents and patents when making the present invention, but the space did not list all details and contents in detail, however, this is by no means the present invention does not possess these prior art features, but on the contrary the present invention has possessed all features of the prior art, and the applicant reserves the right to increase the related prior art in the background art.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the application provides a greenhouse lighting system which can simulate the change of the angle of light and the change of the intensity of illumination in the sunlight irradiation process, and can simulate the proportional change of red light and blue light in different irradiation periods of sunlight so as to be more close to the real sunlight irradiation.

The specific technical scheme is as follows:

a greenhouse lighting system comprises a light emitting structure for generating light to illuminate and a light outlet structure for guiding the light to exit, wherein the light emitting structure comprises a light emitting element and a fixing plate for mounting the light emitting element. The fixing plate comprises a first central axis, and a first area, a second area and a third area are arranged along the first central axis. The light emitting structure can move along the first central axis of the fixing plate and is at least partially overlapped with the first area, the second area and the third area so as to be movably connected with the light emitting structure in a mode of transmitting light rays out of the first area, the second area and the third area.

According to a preferred embodiment, the light emitting element comprises a first lamp capable of generating a first color light and a second lamp capable of generating a second color light, the first area and the third area are respectively provided with a first lamp and a second lamp with a first proportion of number, the second area is provided with a first lamp and a second lamp with a second proportion of number, and the second proportion is larger than the first proportion.

According to a preferred embodiment, the light exit structure includes a light transmission region capable of transmitting light and a shielding region incapable of transmitting light, and the light transmission region is movably connected to the fixing plate through a moving structure in a manner that the light transmission region can be partially or completely overlapped with the first region, the second region and the third region to selectively transmit part of light in the first region, the second region and the third region.

According to a preferred embodiment, the displacement structure is arranged symmetrically with respect to the first central axis of the fastening plate on a first side and a second side of the fastening plate, which are different from the side on which the light-emitting elements are arranged, in such a way that the displacement structure does not interfere with the light-emitting elements during displacement.

According to a preferred embodiment, the moving structure comprises a slider, and one end of the light-transmitting area close to the first side surface and the second side surface is connected with the slider.

According to a preferred embodiment, the moving structure further comprises a power mechanism, and the slider is connected with the power mechanism in a manner of driving the light-transmitting area to move based on power control.

According to a preferred embodiment, the arrangement density of the first and second lamps is gradually increased from both ends of the fixing plate toward the center.

According to a preferred embodiment, the shielding region is connected to the edge of the light-transmitting region in such a way that it continuously shields the non-light-transmitting region in response to a change in position of the light-transmitting region. The connection mode can be detachable connection such as clamping and zipper, or fixed connection such as bonding and welding.

According to a preferred embodiment, the blocking area is provided as a light-tight flexible folding film.

According to a preferred embodiment, the power structure is a push rod motor or a chain driven by a motor.

The utility model discloses an useful part lies in:

first, light providing different color ratios can be simulated, and the use flexibility is strong. By controlling and adjusting the number and the arrangement density of the first lamps and the second lamps, a plurality of light emitting areas with different illumination intensities and color ratios can be formed on the same fixing plate. The mode of selecting the light rays emitted from different areas based on the movement of the light emitting structure and the light emitting structure can control the illumination intensity of the emitted light rays, and the ratio change of the red light and the blue light irradiated by sunlight in one day can be simulated by combining an appropriate control strategy.

And secondly, the change of the illumination angle, the change of the illumination intensity and the change of the color light ratio of the sunlight can be simulated at the same time, and the control is simple. The light emitting structure moves relative to the light emitting structure, and the relative position of the light emitting structure and the irradiated plant can be changed while the color ratio of light emitting is changed through the movement, so that the angle of the light irradiating the plant is changed; the quantity of the lamp beads arranged in different areas on the fixing plate is changed, the illumination intensity of each area on the fixing plate can be changed, when the illumination angle changes, because the light emitting areas overlapped by the light emitting structures are different, the intensity of light emitted at different angles is also different, the control of a plurality of factors is realized only by moving the light emitting structures, and the control is simple and convenient to operate.

Drawings

FIG. 1 is a schematic overall structure of a preferred embodiment of the present application;

FIG. 2 is a schematic power configuration of a preferred embodiment of the present application;

fig. 3 is a schematic structural diagram of a use state of a preferred embodiment of the present application.

List of reference numerals

100: a light emitting structure; 110: a light emitting element; 111: a first lamp; 112: a second lamp; 120: a fixing plate; 121: a first region; 122: a second region; 123: a third region; 124: a first central axis; 125: a first side surface; 126: a second side surface; 200: a light emitting structure; 210: a light-transmitting region; 220: an occlusion region; 300: a moving structure; 310: a slider; 320: and (4) a power structure.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 3.

A greenhouse lighting system comprising a light emitting structure 100, the light emitting structure 100 comprising light emitting elements 110 and a fixing plate 120 for mounting the light emitting elements 110. The light emitting element 110 includes a first lamp 111 capable of generating a first color light and a second lamp 112 capable of generating a second color light. The first lamp 111 and the second lamp 112 are disposed on the same side of the fixing plate 120. Preferably, the first lamps 111 and the second lamps 112 are arranged in an array. The fixing plate 120 has a first central axis 124, and the fixing plate 120 is provided with a first region 121, a second region 122, and a third region 123 along the first central axis 124. The first and

second lamps

111 and 112 are disposed in the first and

third regions

121 and 123 in a first ratio of number such that the first and

third regions

121 and 123 can generate first light of a first ratio of a first color to a second color. The first and

second lamps

111 and 112 are disposed in the second region 122 in a second ratio such that the second region 122 can generate the second light having the first and second colors in the second ratio. The second ratio is greater than the first ratio, such that along the first central axis 124 of the fixing plate 120, from the first end to the second end of the fixing plate 120, the first color light increases and then decreases, and the second color light decreases and then increases.

Preferably, the first color light is set to blue light, for example, and the second color light is set to red light, for example, from the first end to the second end of the fixed plate 120, the blue light is increased and then decreased, and the red light is decreased and then increased.

Preferably, the first color light and the second color light can also be violet light, green light, infrared light, or the like.

Preferably, the first lamps 111 and the second lamps 112 are arranged in a spaced or surrounding manner, so that the light rays of the respective colors generated by the light emitting structure 100 are uniformly mixed.

According to a preferred embodiment, the light-emitting structure 200 is further included for guiding light to exit, and the light-emitting structure 200 includes a light-transmitting area 210 capable of transmitting light and a blocking area 220 incapable of transmitting light. The light-transmitting region 210 of the light-emitting structure 200 is movably connected to the fixing plate 120 through the moving structure 300, so that the light-emitting structure 200 can move relative to the fixing plate 120. In the moving process of the light exit structure 200, the light-transmitting region 210 overlaps with part or all of the first region 121, the second region 122, and the third region 123, so that corresponding light rays of the first region 121, the second region 122, or the third region 123 are selectively transmitted, and the proportion of the transmitted light rays is selected by moving the light-transmitting region 210. Combining the moving structure 300 with the illumination intensity control adjustment simplifies the structure setup and control method.

According to a preferred embodiment, the shapes of the first region 121, the second region 122 and the third region 123 can be circular, square, rectangular, etc., and can be adjusted according to actual needs.

Preferably, the arrangement density of the first lamps 111 and the second lamps 112 gradually increases from both ends of the fixing plate 120 toward the center, so that the illumination intensity gradually increases from both ends of the fixing plate 120 toward the center.

Preferably, the fixing plate 120 is configured as a bar, and the first central axis 124 is a long axis. The fixing plate 120 is installed on a plant cultivation shelf in the greenhouse or on the top of the greenhouse. Preferably, the fixing plate 120 is provided in an arc shape. In the process that the light-transmitting area 210 moves along the fixing plate 120, the relative position of the light-transmitting area 210 and the plant is changed, and further the angle of the transmitted light irradiating the plant is changed, so that the irradiation angle change of the sunlight in one day is simulated. Meanwhile, in the process that the light-transmitting area 210 moves along the fixing plate 120, the light-transmitting area is partially or completely overlapped with the first area 121, the second area 122 and the third area 123, and further, in the process that the light-transmitting area 210 moves, the illumination intensity and the color ratio of light passing through the light-transmitting area are changed accordingly. The setting mode realizes the simultaneous simulation of the illumination intensity change, the color ratio change and the angle change of sunlight through simple structure setting, has low cost, does not need to use algorithm control, and has good stability in the use process. Preferably, the fixing plate 120 is linearly disposed, and a light-emitting cover capable of changing an angle is disposed at a front end of the light-transmitting region 210.

Preferably, the fixing plate 120 is installed on an indoor plant cultivation shelf, and may be installed in a conventional installation manner using a bracket, a screw, or the like.

According to a preferred embodiment, the moving structure 300 comprises a slider 310 and a sliding rail which are movably connected with each other in a clamping manner, the edge of the light-transmitting area 210 is connected with the slider 310, and the slider 310 is also connected with the power structure 320. Preferably, the power structure 320 is a push rod motor. The motor is arranged on the slide rail, and the output end of the motor is connected with the slide block 310. Preferably, the moving structure 300 can also be provided as a chain, with the output of the motor being connected to the chain through a gear. Preferably, the moving structure 300 can also be provided as a powered roller. The roller is disposed on the sliding block 310, and the roller is driven by the motor to rotate automatically, so as to drive the sliding block 310 to move along the sliding rail.

According to a preferred embodiment, the moving structure 300 is disposed on the first side 125 and the second side 126 of the fixing plate 120, which is different from the side on which the light emitting element 110 is disposed, to separate the working surface of the moving structure 300 and the working surfaces of the first lamp 111 and the second lamp 112 from each other, so as to avoid interference between the two during operation. The first side 125 and the second side 126 are two sides that are symmetrical about the first central axis 124 of the fixing plate 120.

According to a preferred embodiment, in the case that the light-transmitting region 210 moves relative to the fixing plate 120 based on the driving of the moving structure 300, the shielding region 220 is configured to change its shape to adapt to the position change of the light-transmitting region 210. Preferably, the blocking area 220 is provided as an opaque flexible folded film.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents. Throughout this document, the features referred to as "preferably" are only an optional feature and should not be understood as necessarily requiring that such applicant reserves the right to disclaim or delete the associated preferred feature at any time.

Claims

1. Greenhouse lighting system, comprising a light emitting structure (100) for generating light for illumination and a light exit structure (200) for guiding the light out, characterized in that the light emitting structure (100) comprises light emitting elements (110) and a fixing plate (120) for mounting the light emitting elements (110),

the fastening plate (120) comprises a first central axis (124), the fastening plate (120) having a first region (121), a second region (122) and a third region (123) along the first central axis (124),

the light emitting structure (200) is movably connected with the light emitting structure (100) in a manner that the light emitting structure can move along the first central axis (124) of the fixing plate (120) and is overlapped with at least part of the first area (121), the second area (122) and the third area (123) so as to transmit light rays of the first area (121), the second area (122) and the third area (123).

2. Greenhouse lighting system according to claim 1, wherein the light emitting elements (110) comprise a first lamp (111) capable of generating a first color light and a second lamp (112) capable of generating a second color light,

the first area (121) and the third area (123) are respectively provided with a first lamp (111) and a second lamp (112) with a first ratio of quantity,

the second area (122) is provided with a first lamp (111) and a second lamp (112) which are provided with a second proportion, and the second proportion is larger than the first proportion.

3. The greenhouse lighting system according to claim 2, wherein the first and second lamps (111, 112) are arranged at a gradually increasing density from both ends of the fixing plate (120) toward the center.

4. The greenhouse lighting system as claimed in claim 2, wherein the light extraction structure (200) comprises a light-transmitting region (210) capable of transmitting light and a light-non-transmitting shielding region (220), and the light-transmitting region (210) is movably connected to the fixing plate (120) by a moving structure (300) in a manner that can overlap with part or all of the first, second and third regions (121, 122, 123) to selectively transmit part of the light in the first, second and third regions (121, 122, 123).

5. Greenhouse lighting system according to claim 4, wherein the moving structure (300) is arranged symmetrically with respect to the first mid-axis (124) of the fixing plate (120) on a first side (125) and a second side (126) of the fixing plate (120) different from the side on which the light emitting element (110) is arranged, in such a way that it does not interfere with the light emitting element (110) when moving.

6. Greenhouse lighting system according to claim 5, wherein the moving structure (300) comprises a slider (310), the light-transmitting area (210) being connected to the slider (310) near one end of the first side (125) and the second side (126).

7. Greenhouse lighting system according to claim 6, wherein the moving structure (300) further comprises a power structure (320), the slider (310) being connected to the power structure (320) in such a way that the light-transmissive region (210) can be moved based on the electrical control.

8. Greenhouse lighting system according to claim 7, wherein the power structure (320) is a chain.

9. Greenhouse lighting system according to claim 8, wherein the shielding area (220) is connected to the edge of the light transmitting area (210) in such a way that it continuously shields the non-light transmitting area in adaptation to the change of the position of the light transmitting area (210).

10. Greenhouse lighting system according to claim 9, wherein the shading area (220) is provided as a light-tight flexible folded film.