CN108266692A - Electric installation is supplied based on the LED street lamp that multiple-energy-source utilizes - Google Patents
Electric installation is supplied based on the LED street lamp that multiple-energy-source utilizes Download PDFInfo
- Publication number
- CN108266692A CN108266692A CN201810215723.1A CN201810215723A CN108266692A CN 108266692 A CN108266692 A CN 108266692A CN 201810215723 A CN201810215723 A CN 201810215723A CN 108266692 A CN108266692 A CN 108266692A
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- Prior art keywords
- street lamp
- led street
- energy
- lamp
- wind
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- 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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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
- F21S9/032—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 separate from the lighting unit
-
- 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
- F21S9/04—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a generator
- F21S9/043—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a generator driven by wind power, e.g. by wind turbines
-
- 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
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
- F21V23/023—Power supplies in a casing
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/54—Cooling arrangements using thermoelectric means, e.g. Peltier elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
-
- 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
-
- 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
- Y02B20/72—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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Power Engineering (AREA)
- Sustainable Energy (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a kind of LED street lamp utilized based on multiple-energy-source for electric installation, which realizes that waste thermal energy when working wind energy, solar energy, LED street lamp carries out utilizing power generation and respectively LED street lamp lamp bead, street lamp lamp box, street lamp heat radiator radiator fan are powered using three kinds of photovoltaic power generation technology, wind generating technology, thermoelectric generation generation technologies.The present invention does not depend on power grid power supply, various energy resources can be utilized to power, can improve efficiency of energy utilization.
Description
Technical field
Electric installation is supplied the present invention relates to a kind of LED street lamp, belongs to field of energy utilization.
Background technology
Conventional road lamp is directly powered mostly using power grid, this just makes street lamp power supply, road lamp power supply system need input a large amount of in process of construction
Power transmission line and booster apparatus construction fund, therefore it is high with street lamp operation energy consumption to cause street lamp power supply, road lamp power supply system Construction of high cost.At present,
In China, many exurb highways and some national highways, provincial highway etc. are all fitted without street lamp, this will give pedestrian and driver
Bring very big security risk.
At present, the lamp box for advertising is seen everywhere on street lamp post, this part lamp box is at night to reach beautiful
The purpose for changing brightening can be decorated using light, and lamp box can fully attract passing passerby's after night is using light decoration
Attention plays good advertisement function.But the power supply of lamp box is directly powered by municipal power grid on current street lamp post,
A large amount of electric energy is consumed, is unfavorable for energy-saving and emission-reduction.
Typical high power LED street lamp can discharge a large amount of waste heats, generally use heat-pipe radiator or aluminium section bar heat dissipation when working
Device radiates, large-power LED light bead lighting process generate heat radiator in a manner of free convection into air
Heat dissipation.Heat transfer free convection is without extraneous driving force, by the temperature difference institute between lower air in radiator and upper strata air
The hot pressing of formation carries out heat convection.In identical heat dissipation area with radiating under the temperature difference, heat transfer free convection is compared to pressure pair
Its heat dissipation capacity of stream heat exchange mode is far smaller than forced convertion, and typical high power LED street lamp radiator is set in lampshade, radiates
The easy dust collection of device is so as to reduce the heat dissipation capacity of typical high power LED street lamp radiator.
Invention content
It is high in view of conventional road lamp operation energy consumption and ask without recuperation of heat measure and street lamp power supply, road lamp power supply system Construction are of high cost
Topic, the present invention can utilize solar energy, wind energy, LED street lamp waste heat energy to power for LED street lamp, meet LED street lamp difference electricity consumption need
It asks, achievees the purpose that multiple-energy-source utilizes；Realizing street lamp for electric installation based on the LED street lamp that multiple-energy-source utilizes need not be by power grid
The purpose of power supply and have the function of Waste Heat Recovery recycling.
The technical solution adopted by the present invention to solve the technical problems is：Denso is supplied based on the LED street lamp that multiple-energy-source utilizes
It puts, solar panel is fixed on street lamp post, solar panel converts solar energy into electrical energy, the solar cell
Plate is connected as power storage module 2 with its switching power supply by conductor wire and charges, and the power storage module 2 passes through conductor wire and LED
Streetlamp driving power supply is connected as the LED lamp bead power supply of street lamp.Wind-driven generator is placed on street lamp post top, wind-driven generator will
Wind energy transformation is electric energy, and the wind-driven generator is connected as power storage module 1 with its switching power supply by conductor wire and charges, institute
It is to power for the street lamp lamp box of advertising that power storage module 1, which is stated, by conductor wire.It coats and leads in the lamp bead aluminum substrate of LED street lamp
Semiconductor temperature differential generating patch is placed after thermal medium, semiconductor temperature differential generating patch is useless by what is generated in LED street lamp operational process
Thermal transition is electric energy, and the semiconductor temperature differential generating patch is connected as road lamp cooling wind by conductor wire and its switching power supply
Fan power supply.
The lamp bead of the LED street lamp is the 1-8 large-power LED light bead with aluminum substrate；The power storage module, which uses, to be exempted to tie up
Protect accumulator；The light pole is band access hole and is hollow light pole；The wind-driven generator for vertical axis aerogenerator,
Magneto wind-driven generator；The solar panel is monocrystalline Silicon photrouics, polysilicon photovoltaic cells；The semiconductor temperature
Difference power generation patch is made of 1-8 electricity generation module, the electricity generation module PN junction Te-Bi compound-material higher for the figure of merit, thermoelectricity
Transformation efficiency is in 5%-8%；The road lamp cooling fan be 1-4 ball bearing fan or liquid bearing fan, supply voltage
For direct current DC5V；The radiator of the LED street lamp is pure Aluminium Radiator, pure copper radiator, embedding copper formula Aluminium Radiator, heat
Tube radiator, die casting copper formula Aluminium Radiator.
The beneficial effects of the invention are as follows：Solar use can be generated electricity for electric installation based on the LED street lamp that multiple-energy-source utilizes
To power for LED street lamp, secondly wind energy utilization power generation can be come to power for street lamp lamp box, moreover it is possible to will be in LED street lamp operational process
The non-road lamp cooling fan power supply of waste-heat power generation of generation, realizes the purpose for strengthening LED street lamp radiator heat exchange.It is not only utilized
Solar energy, wind energy also use the waste heat generated in LED street lamp operational process, improve efficiency of energy utilization.LED street lamp without
Power grid is needed to power, saves exurb street lamp power transmission and distribution investment, operational management is simple.
Description of the drawings
Fig. 1 is the LED street lamp power supply schematic device utilized based on multiple-energy-source.
Fig. 2 is that the LED street lamp utilized based on multiple-energy-source supplies electric installation vertical section structural map.
In figure：1st, LED street lamp lamp bead, 2, semiconductor temperature differential generating patch, 3, radiator, 4, radiator fan, 5, semiconductor
Thermo-electric generation patch switching power supply, 6, LED street lamp driving power, 7, solar panel power storage module, 8, solar-electricity
Pond switching plate regulated power supply, 9, solar panel, 10, wind-driven generator, 11, wind-driven generator switching power supply, 12, wind
Power generator power storage module, 13, street lamp lamp box, 14, conductor wire, 15, heat-conducting medium.
Specific embodiment
With reference to specific embodiment, the present invention is described further.As shown in Figure 1, Figure 2, it is utilized based on multiple-energy-source
LED street lamp supplies electric installation, including LED street lamp lamp bead 1, semiconductor temperature differential generating patch 2, radiator 3, radiator fan 4, semiconductor
Thermo-electric generation patch switching power supply 5, LED street lamp driving power 6, solar panel power storage module 7, solar panel
Switching power supply 8, solar panel 9, wind-driven generator 10, wind-driven generator switching power supply 11, wind-driven generator
Power storage module 12, street lamp lamp box 13, conductor wire 14, heat-conducting medium 15.The present invention is divided into three power generation, electric power storage, electricity consumption modules,
Middle electricity generation module includes three kinds of solar panel power generation, wind turbine power generation, semiconductor temperature differential generating patch power generation power generations
Technology, power storage module include solar panel power storage module and wind-driven generator power storage module, and electricity consumption module includes LED street lamp
Lamp bead electricity consumption, the street lamp lamp box electricity consumption of advertising, street lamp heat radiator radiator fan electricity consumption.
Solar panel 9 converts solar energy into electrical energy on daytime and passes through solar panel switching power supply 8
Only solar panel power storage module 7 charges, and solar panel power storage module 7 is only that LED street lamp lamp bead 1 supplies at night
Electricity, 9 area of solar panel are 0.72-1.1 square metres, and the generated energy of one day can meet LED roads when sunny
The electricity consumption at 1 one nights of lamp lamp bead, the solar panel power storage module 7 are made of one piece of maintenance-free battery.
Wind-driven generator 10 converts wind energy into electric energy under certain wind speed and passes through wind-driven generator switching power supply
11 be only that wind-driven generator power storage module 12 charges, and wind-driven generator power storage module 12 is on the road that night is only for advertising
Lamp lamp box 13 is powered.The wind-driven generator 10 can be started to charge up in the following wind speed of 3 meter per seconds, the wind-driven generator electric power storage mould
Block 12 is made of two pieces of maintenance-free batteries and a controller, and the controller controls two pieces of accumulator wheel current charges, preferentially
It charges to the few accumulator of charge capacity, when LED street lamp lamp bead 1 works, the controller controls two pieces of accumulators to discharge in turn,
Accumulator preferential discharge more than charge capacity stops electric discharge when reaching final discharging voltage.13 shape of street lamp lamp box is circle
Shape lamp box, rectangular lamp box, post lamp box, rotating lamp box, 13 light source of street lamp lamp box is LED light bar, EEFL fluorescent tubes.
When LED street lamp lamp bead 1 works, the waste heat that LED street lamp lamp bead 1 is generated converts semiconductor temperature differential generating patch 2
For electric energy and to pass through semiconductor temperature differential generating patch switching power supply 5 be directly that street lamp heat radiator radiator fan 4 is powered, heat dissipation
Street lamp heat radiator 3 is at forced-convection heat transfer environment after fan 4 works.The LED street lamp lamp bead 1, semiconductor temperature differential generating
Heat-conducting medium is coated respectively between patch 2, radiator 3, the heat-conducting medium is heat conductive silica gel, heat conduction silicone oil.
The solar panel power storage module 7, wind-driven generator power storage module 12 are placed in access hole and are hollow
In light pole, apart from ground 1-1.5 meters of eminence, lamp stand center of gravity can be reduced, increases lamp stand resisting deflection, while convenient to overhaul.
Claims (8)
1. based on the LED street lamp that multiple-energy-source utilizes for electric installation, it is characterized in that including LED street lamp lamp bead, semiconductor temperature differential generating
Patch, radiator, radiator fan, semiconductor temperature differential generating patch switching power supply, LED street lamp driving power, solar-electricity
Pond plate power storage module, solar panel switching power supply, solar panel, wind-driven generator, wind-driven generator switch
Regulated power supply, wind-driven generator power storage module, street lamp lamp box, conductor wire, heat-conducting medium, the solar panel lead to when working
The switching power supply for crossing solar panel is only that the power storage module of solar panel charges, solar panel electric power storage mould
Block is only the power supply of LED street lamp lamp bead at night, passes through the switching power supply of wind-driven generator when the wind-driven generator works
The only power storage module charging of wind-driven generator, the power storage module of wind-driven generator are only used for the street lamp of advertising at night
Lamp box is powered, and the waste heat that the semiconductor temperature differential generating patch generates when LED street lamp lamp bead is worked is converted into electric energy and passes through
The switching power supply of semiconductor temperature differential generating patch is directly powered for street lamp heat radiator radiator fan.
2. require the LED street lamp utilized based on multiple-energy-source for electric installation according to right 1, the LED street lamp lamp bead its
It is characterized in the large-power LED light bead with aluminum substrate.
3. the LED street lamp utilized based on multiple-energy-source is required for electric installation, its feature of the power storage module according to right 1
It is made of maintenance-free battery.
4. the LED street lamp utilized based on multiple-energy-source is required for electric installation, its spy of the wind-driven generator according to right 1
Sign is vertical axis aerogenerator, magneto wind-driven generator.
5. require the LED street lamp utilized based on multiple-energy-source for electric installation according to right 1, the solar panel its
It is characterized in monocrystalline Silicon photrouics, polysilicon photovoltaic cells.
6. the LED street lamp utilized based on multiple-energy-source is required for electric installation, its feature of the radiator fan according to right 1
It is ball bearing fan or liquid bearing fan.
7. require the LED street lamp utilized based on multiple-energy-source for electric installation according to right 1, the radiator it is characterized in that
Pure Aluminium Radiator, pure copper radiator, embedding copper formula Aluminium Radiator, heat-pipe radiator, die casting copper formula Aluminium Radiator.
8. require the LED street lamp utilized based on multiple-energy-source for electric installation according to right 1, described its feature of street lamp lamp box
It is round lamp house, rectangular lamp box, post lamp box, rotating lamp box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215723.1A CN108266692A (en) | 2018-03-15 | 2018-03-15 | Electric installation is supplied based on the LED street lamp that multiple-energy-source utilizes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215723.1A CN108266692A (en) | 2018-03-15 | 2018-03-15 | Electric installation is supplied based on the LED street lamp that multiple-energy-source utilizes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108266692A true CN108266692A (en) | 2018-07-10 |
Family
ID=62774972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810215723.1A Withdrawn CN108266692A (en) | 2018-03-15 | 2018-03-15 | Electric installation is supplied based on the LED street lamp that multiple-energy-source utilizes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108266692A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201772383U (en) * | 2010-07-22 | 2011-03-23 | 重庆通达汽车有限公司 | Solar-energy multiple-direction wind-energy LED street lamp system |
| CN201852020U (en) * | 2010-11-26 | 2011-06-01 | 刘洪福 | Street lamp capable of generating electricity by utilizing wind energy, solar energy and temperature difference |
| CN202165951U (en) * | 2011-08-11 | 2012-03-14 | 东莞巨扬电器有限公司 | Light-emitting diode (LED) street lamp with improved radiating function |
| CN102506371A (en) * | 2011-09-02 | 2012-06-20 | 房雪锋 | Wind, light and thermoelectricity complementary light-emitting diode (LED) streetlamp device |
| CN102647122A (en) * | 2012-05-15 | 2012-08-22 | 上海电力学院 | Solar photovoltaic-temperature difference automatic temperature control joint power generation unit |
| CN202432363U (en) * | 2011-12-28 | 2012-09-12 | 莫金成 | High-heat-dissipation LED (light emitting diode) street lamp |
| CN203442603U (en) * | 2013-08-23 | 2014-02-19 | 浙江天耀光电科技有限公司 | LED streetlamp with optimized heat radiating structure |
| CN204026476U (en) * | 2014-08-15 | 2014-12-17 | 云南联能节能科技有限公司 | Energy recovery solar street light |
| CN104539234A (en) * | 2014-12-04 | 2015-04-22 | 西安航空学院 | Concentrating photovoltaic and temperature difference compound street lamp power supply system |
| CN204704727U (en) * | 2015-05-06 | 2015-10-14 | 扬州绿安新节能照明科技有限公司 | The LED street lamp that a kind of radiating efficiency is high |
| CN205690272U (en) * | 2016-06-18 | 2016-11-16 | 西南科技大学城市学院 | LED street lamp electric supply installation based on multi-energy complementation |
| CN106382602A (en) * | 2016-10-22 | 2017-02-08 | 浙江聚珖科技股份有限公司 | Light fixture for generating power through photovoltaic temperature difference waste heat |
| CN206320718U (en) * | 2016-11-18 | 2017-07-11 | 深圳市思坎普科技有限公司 | A kind of road lamp radiating structure |
| CN206496255U (en) * | 2017-02-22 | 2017-09-15 | 黄紫旭 | Lamp box electric supply installation based on LED street lamp waste heat recovery |
-
2018
- 2018-03-15 CN CN201810215723.1A patent/CN108266692A/en not_active Withdrawn
Patent Citations (14)
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|---|---|---|---|---|
| CN201772383U (en) * | 2010-07-22 | 2011-03-23 | 重庆通达汽车有限公司 | Solar-energy multiple-direction wind-energy LED street lamp system |
| CN201852020U (en) * | 2010-11-26 | 2011-06-01 | 刘洪福 | Street lamp capable of generating electricity by utilizing wind energy, solar energy and temperature difference |
| CN202165951U (en) * | 2011-08-11 | 2012-03-14 | 东莞巨扬电器有限公司 | Light-emitting diode (LED) street lamp with improved radiating function |
| CN102506371A (en) * | 2011-09-02 | 2012-06-20 | 房雪锋 | Wind, light and thermoelectricity complementary light-emitting diode (LED) streetlamp device |
| CN202432363U (en) * | 2011-12-28 | 2012-09-12 | 莫金成 | High-heat-dissipation LED (light emitting diode) street lamp |
| CN102647122A (en) * | 2012-05-15 | 2012-08-22 | 上海电力学院 | Solar photovoltaic-temperature difference automatic temperature control joint power generation unit |
| CN203442603U (en) * | 2013-08-23 | 2014-02-19 | 浙江天耀光电科技有限公司 | LED streetlamp with optimized heat radiating structure |
| CN204026476U (en) * | 2014-08-15 | 2014-12-17 | 云南联能节能科技有限公司 | Energy recovery solar street light |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180710 |