CN108870282A - A kind of solar street light with solar tracking function - Google Patents
A kind of solar street light with solar tracking function Download PDFInfo
- Publication number
- CN108870282A CN108870282A CN201810385222.8A CN201810385222A CN108870282A CN 108870282 A CN108870282 A CN 108870282A CN 201810385222 A CN201810385222 A CN 201810385222A CN 108870282 A CN108870282 A CN 108870282A
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- CN
- China
- Prior art keywords
- fixing seat
- solar
- cabin
- tracking function
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003028 elevating effect Effects 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
- F21S9/03—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
- F21S9/035—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light the solar unit being integrated within the support for the lighting unit, e.g. within or on a pole
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- 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
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of solar street lights with solar tracking function,Including support column,The support top end is provided with cabin,Lamp body is symmetrically arranged at left and right sides of the cabin,Fixing seat is provided with above cabin,Top is provided with support plate in the middle part of the fixing seat,Solar panel is symmetrically arranged at left and right sides of the support plate,The solar panel is articulated and connected with support plate top respectively,Elevating mechanism is provided in fixing seat,Support plate is supported in fixing seat by elevating mechanism,Fixing seat corresponds to and is provided with fixed link on the downside of solar panel outer end,It is articulated and connected on the downside of the fixed link top and solar panel,Battery is provided in the fixing seat,The present invention provides a kind of solar street light with solar tracking function,Structure setting is ingenious and connection and reasonable arrangement,Support column is fixed on the ground by fixed bottom plate,And then realize the tracking sun,Greatly improve solar energy utilization ratio,Structural stability is greatly improved simultaneously.
Description
Technical field
The present invention relates to new energy equipment technical field, specifically a kind of solar street light with solar tracking function.
Background technique
With the development in an all-round way of global industry, demand of the every country various industries to the energy sharply expands, and the energy needs
How much oneself warps asked become the standard for measuring a country Economic Development Status.Renewable energy mainly has water energy, too
The Energy situations such as positive energy, wind energy, geothermal energy, biomass energy, the feature of maximum are with self-recovery ability, and people are using
In the process, renewable energy can continuously be supplemented from nature, it is inexhaustible energy
Source.By the research and demonstration of scholar, it has been recognized that solar energy and wind energy are to solve energy crisis and environmental pollution most
It is new century most important energy source type effectively with feasible energy source type.Especially solar energy is more next with its unique advantage
More it is concerned by people, it is renewable because solar energy is inexhaustible；Application of solar energy region is extensive；Solar energy
Cleaning, it is pollution-free；Solar power generation does not have moving component, is hardly damaged, and maintenance is simple.
With the development of society and technology, solar street light occurs and is widely applied at present, however traditional solar energy
Lamp post structure is stiff, has a single function, and especially the efficiency of solar energy utilization is low and structural stability is poor.
Summary of the invention
The purpose of the present invention is to provide a kind of solar street lights with solar tracking function, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides the following technical solutions：
A kind of solar street light with solar tracking function, including support column, the support top end is provided with cabin, described
It is symmetrically arranged with lamp body at left and right sides of cabin, fixing seat is provided with above cabin, top is provided with support in the middle part of the fixing seat
Plate, is symmetrically arranged with solar panel at left and right sides of the support plate, the solar panel respectively with support plate top
It is articulated and connected, is provided with elevating mechanism in fixing seat, support plate is supported in fixing seat by elevating mechanism, and fixing seat is corresponding too
It is positive to be provided with fixed link on the downside of solar panel outer end, it is articulated and connected on the downside of the fixed link top and solar panel, it is described
Battery is provided in fixing seat.
As a further solution of the present invention：The support column bottom end is provided with fixed bottom plate, and support column passes through fixed bottom
Plate fixes on the ground.
As further scheme of the invention：Fixing seat bottom middle position is provided with rotary shaft, and fixing seat is logical
Rotary shaft to be crossed to be mounted at the top of cabin, rotary shaft bottom end is sleeved in the fixing bearing being arranged at the top of cabin and protrudes into cabin,
Rotary shaft driving mechanism is provided in cabin.
As further scheme of the invention：The elevating mechanism includes vertical screw axis, the vertical screw axis bottom
On the bearing block that end cap is arranged in the fixing seat, it is provided with vertical screw axis driving mechanism in fixing seat, on vertical screw axis
It is set with movable plate, screw rod sliding block is fixedly installed in the middle part of the movable plate, the screw rod slide block set is mounted on vertical screw axis,
Movable plate left and right ends are provided with push rod, and the push rod top is fixedly installed push plate, and the support plate bottom end is fixed on push plate
On.
As further scheme of the invention：The vertical screw axis top is provided with limited block.
As further scheme of the invention：The vertical screw axis driving mechanism includes driven pulley, described driven
Belt wheel is sleeved in fixing seat on vertical screw axis, and driving pulley is provided in the fixing seat and drives driving pulley rotation
Lifting motor is set with driving belt between driving pulley and driven pulley.
As further scheme of the invention：The rotary shaft driving mechanism includes vertical bevel gear, the vertical cone
Gear set is provided with lateral bevel gear and drives the rotation of lateral bevel gear rotation on cabin inner rotary shaft in the cabin
Motor, the transverse direction bevel gear and vertical bevel gear engaged transmission.
As horizontal slide rail is symmetrically set in fixing seat described in the present invention further scheme, the level is sliding
Rail is provided with sliding block, and fixed link bottom end is fixed on sliding block.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention provide it is a kind of with solar tracking function too
Positive energy streetlight, structure setting is ingenious and connection and reasonable arrangement, and support column is fixed on the ground by fixed bottom plate, when work, electric rotating
Machine drives lateral bevel gear rotation, and lateral bevel gear and the engaged transmission driving rotary shaft rotation of vertical bevel gear, rotary shaft drive
Fixing seat rotation, and then solar panel azimuth is adjusted, so that the solar panel more solar azimuth side of being adjusted
Parallactic angle, while the lifting of solar panel top is pushed by elevating mechanism, and then adjust unilateral solar panel inclination angle, into
And realize the tracking sun, solar energy utilization ratio is greatly improved, solar panel design triangular in shape in two sides greatly improves structure
Stability is conducive to air-flow guiding, effectively avoids unilateral solar panel from answering inclination angle is excessive to form great windage, influences stable structure
Property, and the solar energy utilization ratio of the meridian hour is not influenced, whole solar energy utilization ratio is still higher, and battery stores up in fixing seat
Deposit the electric energy of solar panel generation, the power supply for motor and lamp body.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the solar street light with solar tracking function.
Fig. 2 is the structural schematic diagram of elevating mechanism in the solar street light with solar tracking function.
Fig. 3 is the structural schematic diagram of vertical screw axis driving mechanism in the solar street light with solar tracking function.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~3, in the embodiment of the present invention, a kind of solar street light with solar tracking function, including support
Column 1,1 top of support column are provided with cabin 3, lamp body 2 are symmetrically arranged at left and right sides of the cabin 3, is arranged above cabin 3
There is fixing seat 5, the 5 middle part top of fixing seat is provided with support plate 8, is symmetrically arranged with the sun at left and right sides of the support plate 8
Energy solar panel 7, the solar panel 7 are articulated and connected with 8 top of support plate respectively, are provided with elevating mechanism in fixing seat 5,
Support plate 8 is supported in fixing seat 5 by elevating mechanism, and fixing seat 5 is provided with fixation on the downside of corresponding 7 outer end of solar panel
Bar 10 is articulated and connected on the downside of 10 top of fixed link and solar panel 7, is provided with battery 6 in the fixing seat 5.
1 bottom end of support column is provided with fixed bottom plate 18, and support column 1 passes through fixed bottom plate 18 and fixes on the ground.
The 5 bottom middle position of fixing seat is provided with rotary shaft 4, and fixing seat 5 is mounted on the top of cabin 3 by rotary shaft 4
Portion, 4 bottom end of rotary shaft are sleeved in the fixing bearing 14 being arranged at the top of cabin 3 and protrude into cabin 3, and rotation is provided in cabin 3
Shaft driving mechanism.
The elevating mechanism includes vertical screw axis 9, and vertical 9 bottom end of screw axis is sleeved on setting in fixing seat 5
On bearing block 13, it is provided with vertical screw axis driving mechanism in fixing seat 5, movable plate 23 is set on vertical screw axis 9, it is described
Screw rod sliding block 22 is fixedly installed in the middle part of movable plate 23, the screw rod sliding block 22 is sleeved on vertical screw axis 9, and movable plate 23 is left
Right both ends are provided with push rod 21, and 21 top of push rod is fixedly installed push plate 19, and 8 bottom end of support plate is fixed on push plate 19
On.
9 top of vertical screw axis is provided with limited block 20.
The vertical screw axis driving mechanism includes driven pulley 24, and the driven pulley 24 is sleeved in fixing seat 5 and erects
To on screw axis 9, the lifting motor 27 that driving pulley 26 is provided in the fixing seat 5 and driving pulley 26 is driven to rotate is main
Driving belt 25 is set between movable belt pulley 26 and driven pulley 24.
The rotary shaft driving mechanism includes vertical bevel gear 15, and the vertical bevel gear 15 is sleeved on rotation in cabin 3
On axis 4, the rotating electric machine 16 that lateral bevel gear 17 is provided in the cabin 3 and lateral bevel gear 17 is driven to rotate, the cross
To 15 engaged transmission of bevel gear 17 and vertical bevel gear.
Horizontal slide rail 12 is symmetrically set in the fixing seat 3, the horizontal slide rail 12 is provided with sliding block 11, fixed
10 bottom end of bar is fixed on sliding block 11.
The working principle of the invention is：The present invention provides a kind of solar street light with solar tracking function, and structure is set
Set ingenious and connection and reasonable arrangement, support column is fixed on the ground by fixed bottom plate, and when work, rotating electric machine drives lateral bevel gear
Rotation, lateral bevel gear and the engaged transmission driving rotary shaft rotation of vertical bevel gear, rotary shaft drives fixing seat rotation, and then adjusts
Whole solar panel azimuth so that solar panel more solar azimuth is adjusted azimuth, while passing through lifting
The lifting of mechanism urges solar panel top, and then unilateral solar panel inclination angle is adjusted, and then realize the tracking sun, greatly
Big to improve solar energy utilization ratio, solar panel design triangular in shape in two sides greatly improves structural stability, is conducive to air-flow
Guiding effectively avoids unilateral solar panel from answering inclination angle is excessive to form great windage, influences structural stability, and do not influence high noon
The solar energy utilization ratio of time-division, whole solar energy utilization ratio is still higher, and battery storage solar panel produces in fixing seat
Raw electric energy, the power supply for motor and lamp body.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of solar street light with solar tracking function, including support column, which is characterized in that the support top end is set
Be equipped with cabin, lamp body be symmetrically arranged at left and right sides of the cabin, be provided with fixing seat above cabin, in the middle part of the fixing seat on
Side is provided with support plate, and solar panel, the solar panel difference are symmetrically arranged at left and right sides of the support plate
It being articulated and connected with support plate top, is provided with elevating mechanism in fixing seat, support plate is supported in fixing seat by elevating mechanism,
Fixing seat corresponds to and is provided with fixed link on the downside of solar panel outer end, cuts with scissors on the downside of the fixed link top and solar panel
It connects in succession, battery is provided in the fixing seat, fixing seat bottom middle position is provided with rotary shaft, and fixing seat passes through
Rotary shaft is mounted at the top of cabin, and rotary shaft bottom end is sleeved in the fixing bearing being arranged at the top of cabin and protrudes into cabin, machine
Rotary shaft driving mechanism is provided in storehouse；The rotary shaft driving mechanism includes vertical bevel gear, the vertical bevel gear suit
On cabin inner rotary shaft, it is provided with lateral bevel gear in the cabin and drives the rotating electric machine of lateral bevel gear rotation, institute
State lateral bevel gear and vertical bevel gear engaged transmission.
2. the solar street light according to claim 1 with solar tracking function, which is characterized in that the support column bottom
End is provided with fixed bottom plate, and support column is fixed on the ground by fixed bottom plate.
3. the solar street light according to claim 1 with solar tracking function, which is characterized in that the elevating mechanism
Including vertical screw axis, the vertical screw axis bottom end is sleeved on the bearing block being arranged in fixing seat, is provided in fixing seat
Vertical screw axis driving mechanism is set with movable plate on vertical screw axis, is fixedly installed screw rod sliding block in the middle part of the movable plate,
For the screw rod slide block set on vertical screw axis, movable plate left and right ends are provided with push rod, the push rod top fixed setting
There is push plate, the support plate bottom end is fixed in push plate.
4. the solar street light according to claim 3 with solar tracking function, which is characterized in that the vertical screw rod
Axis top is provided with limited block.
5. the solar street light according to claim 3 with solar tracking function, which is characterized in that the vertical screw rod
Axis driving mechanism includes driven pulley, and the driven pulley is sleeved in fixing seat on vertical screw axis, is set in the fixing seat
It is equipped with driving pulley and drives the lifting motor of driving pulley rotation, transmission skin is set between driving pulley and driven pulley
Band.
6. the solar street light according to claim 1 with solar tracking function, which is characterized in that in the fixing seat
It is symmetrically set with horizontal slide rail, the horizontal slide rail is provided with sliding block, and fixed link bottom end is fixed on sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810385222.8A CN108870282A (en) | 2018-04-26 | 2018-04-26 | A kind of solar street light with solar tracking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810385222.8A CN108870282A (en) | 2018-04-26 | 2018-04-26 | A kind of solar street light with solar tracking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108870282A true CN108870282A (en) | 2018-11-23 |
Family
ID=64327244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810385222.8A Withdrawn CN108870282A (en) | 2018-04-26 | 2018-04-26 | A kind of solar street light with solar tracking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108870282A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110249861A (en) * | 2019-07-01 | 2019-09-20 | 安徽省宝景生态农业科技有限公司 | A kind of Collapsible movable full-closed environment solar energy picks up after-culture object device for raising seedlings |
| CN112212275A (en) * | 2020-10-15 | 2021-01-12 | 合肥凌山新能源科技有限公司 | Solar street lamp with adjustable angle |
| WO2021109604A1 (en) * | 2019-12-04 | 2021-06-10 | 苏州必加互联网科技有限公司 | Smart city lighting device |
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| KR20090011838A (en) * | 2007-07-27 | 2009-02-02 | 주식회사 세기도장 | Tracker of solar power generator |
| CN202948328U (en) * | 2012-11-16 | 2013-05-22 | 施潺 | Solar photovoltaic plate tracking device |
| CN104329819A (en) * | 2014-10-10 | 2015-02-04 | 浙江英科新能源有限公司 | Installing frame for support type solar water heater |
| CN204794848U (en) * | 2015-07-17 | 2015-11-18 | 中节能（临沂）光伏农业科技有限公司 | Photovoltaic green house solar panel support frame that can follow spot |
| CN204836052U (en) * | 2015-08-07 | 2015-12-02 | 江阴万事兴技术有限公司 | Photovoltaic system of ability automatically regulated solar irradiance angle |
| CN106685331A (en) * | 2017-01-16 | 2017-05-17 | 泉州市泉港智源商贸有限公司 | Communication base station with self power generation function |
| CN206831390U (en) * | 2017-06-28 | 2018-01-02 | 洪海勇 | A kind of LED street lamp with illuminator level regulation with solar panels cleaning function |
| CN107911068A (en) * | 2017-12-20 | 2018-04-13 | 孝感奥新新材料技术有限公司 | A kind of photovoltaic solar power generator easy to repair |
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2018
- 2018-04-26 CN CN201810385222.8A patent/CN108870282A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090011838A (en) * | 2007-07-27 | 2009-02-02 | 주식회사 세기도장 | Tracker of solar power generator |
| CN202948328U (en) * | 2012-11-16 | 2013-05-22 | 施潺 | Solar photovoltaic plate tracking device |
| CN104329819A (en) * | 2014-10-10 | 2015-02-04 | 浙江英科新能源有限公司 | Installing frame for support type solar water heater |
| CN204794848U (en) * | 2015-07-17 | 2015-11-18 | 中节能（临沂）光伏农业科技有限公司 | Photovoltaic green house solar panel support frame that can follow spot |
| CN204836052U (en) * | 2015-08-07 | 2015-12-02 | 江阴万事兴技术有限公司 | Photovoltaic system of ability automatically regulated solar irradiance angle |
| CN106685331A (en) * | 2017-01-16 | 2017-05-17 | 泉州市泉港智源商贸有限公司 | Communication base station with self power generation function |
| CN206831390U (en) * | 2017-06-28 | 2018-01-02 | 洪海勇 | A kind of LED street lamp with illuminator level regulation with solar panels cleaning function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110249861A (en) * | 2019-07-01 | 2019-09-20 | 安徽省宝景生态农业科技有限公司 | A kind of Collapsible movable full-closed environment solar energy picks up after-culture object device for raising seedlings |
| WO2021109604A1 (en) * | 2019-12-04 | 2021-06-10 | 苏州必加互联网科技有限公司 | Smart city lighting device |
| CN112212275A (en) * | 2020-10-15 | 2021-01-12 | 合肥凌山新能源科技有限公司 | Solar street lamp with adjustable angle |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20181123 |