CN104582149B - A kind of LED street lamp with charging pile - Google Patents
A kind of LED street lamp with charging pile Download PDFInfo
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- CN104582149B CN104582149B CN201410796948.2A CN201410796948A CN104582149B CN 104582149 B CN104582149 B CN 104582149B CN 201410796948 A CN201410796948 A CN 201410796948A CN 104582149 B CN104582149 B CN 104582149B
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- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a kind of LED street lamp with charging pile, including：Correcting circuit, it is used to be corrected and compensation of power factor the current distortion in driver circuit, improves the quality of power supply；The influence of filter circuit, Eliminate highter harmonic and clutter to the driver circuit；PWM on-off circuits, it drives the LED street lamp to work by the ON time of controlling switch pipe, to realize the function of being dimmed in real time to the LED street lamp；Charge circuit, it is arranged between the filter circuit and the PWM on-off circuits, for being charged to electric automobile；Wherein, correcting circuit described in the charge circuit and the PWM on-off circuits are controlled from same control module with simultaneously, complete to coordinate the charging process of automobile on the basis of dimming LED street lamp.The present invention is integrated with the dual-use function of LED street lamp illumination and charging electric vehicle, with huge application value.
Description
Technical field
The present invention relates to a kind of street lamp, particularly a kind of LED street lamp with charging pile.
Background technology
Existing street lamp is controlled frequently with alternating current timing constant pressure type of drive, and control is simple, and current research heat
Point is the light source for using LED as street lamp, and more preferably, efficiency height and environmental protection, service life are longer for illuminating effect.
But such a control mode is disadvantageous in that：LED can not be adjusted according to external bright dark degree in real time
Exiting light beam intensity, can only timing open and close, and given driving voltage is constant, becomes alternating current frequently with simple fairing
Into direct current, then directly it is filtered device and comes to waveform shaping, finally by the DC powered illuminating lamp after shaping, due to
Fairing is directly connected with filter, and electric current has a charge and discharge process on filter capacitor, works as AC-input voltage
When instantaneous value is less than the voltage on filter capacitor, commutation diode is not turned on, and in extremely narrow pass range, can be produced greatly
Conducting electric current, make supply current be in pulse type, reduce the power factor of system, cause LED illumination lamp emergent ray
It is unstable.
On the other hand, today of energy society is being particular about, pure electric automobile has become the focus of pursuing of people, and energy-conservation subtracts
It can also be reduced expenses while row, also there is corresponding subsidy policy various countries, promote increasing people using electric automobile to make
For trip instrument, at the same time, the construction of the supporting infrastructure such as charging device is also extremely urgent, nowadays sets and concentrates mostly
The charging station of formula is charged.
But such a mode is disadvantageous in that：Because the charging station of centralization can not also be popularized, filled to electric automobile
It is very inconvenient when electric, during than not enough power supply if in the process of moving, trouble can be caused to road traffic, is limited to a certain extent
The popularization of electric automobile.
The content of the invention
For above-mentioned technical problem, the invention discloses a kind of LED street lamp with charging pile, LED street lamp is efficiently solved
The problem of bright dark degree is uncontrollable and light is unstable.
A further object of the invention is to solve the problem of charging electric vehicle is inconvenient, is provided with and fills in street lamp tower
Electric stake so that electric automobile can be charged in roadside at any time.
Meanwhile, the present invention is come while control correcting circuit and PWM on-off circuits with same control module, is realized pair
The compensation of power factor of LED street lamp system, eliminates the influence to LED street lamp when automobile charges.
In order to realize that there is provided a kind of LED street lamp with charging pile, bag according to object of the present invention and further advantage
Include：
Correcting circuit, it is used to be corrected and compensation of power factor the current distortion in driver circuit, improves
The quality of power supply, reduces harmonic wave and power supply is interfered, while making LED street lamp steady operation, reduce the flicker of its emergent ray；Filter
Wave circuit, it receives the electric current after being handled through the correcting circuit, filters the alternating component in electric current, while gentle electric current is dashed forward
The shadow of change so that the curent change in the driver circuit is more stablized, Eliminate highter harmonic and clutter to the driver circuit
Ring；PWM on-off circuits, it drives the LED street lamp to work by the ON time of controlling switch pipe, to realize to described
The function that LED street lamp is dimmed in real time；Charge circuit, it is arranged between the filter circuit and the PWM on-off circuits, is used for
Electric automobile is charged；Wherein, the correcting circuit and the PWM on-off circuits from same control module simultaneously with
Control, coordinates the charging process of automobile, realizes the current constant control to the LED street lamp, eliminates when automobile charges to the LED
The influence of street lamp.
It is preferred that, the correcting circuit is connected to the DC output end of rectification circuit, and the structure of the correcting circuit is：Electricity
Feel L1, it is connected on direct-flow positive pole, for suppressing electric current instantaneous mutation；Switching tube Q1, it is connected between direct current both positive and negative polarity,
Colelctor electrode is connected to the leading-out terminal of the inductance L1, for the electric current of pulsation to be cut into high frequency interrupted current；Diode D1, its sun
Pole is connected with the leading-out terminal of the inductance L1, for carrying out rectification again to the high frequency interrupted current.
It is preferred that, the filter circuit includes：The inductance L2 that is connected with the diode D1 negative electrodes, be connected in parallel its two
The electric capacity C1 and C2 at end, described electric capacity C1, C2 are used to buffer the electricity for filtering the alternating component in electric current, the inductance L2
Hold C1, C2 from discharge process.
It is preferred that, the PWM on-off circuits include：The isolating transformer T1 being connected with the inductance L2 other ends and its
The current-limiting resistance R2 of primary side negative pole connection, the switch being connected between the current-limiting resistance R2 and the rectification circuit direct current negative pole
Pipe Q2.
It is preferred that, also including inductance L4, it is connected between the current-limiting resistance R2 and the isolating transformer T1, is used for
The mutation of induced electromotive force on the isolating transformer T1 is relaxed, stablizes the light extraction of the LED street lamp.
It is preferred that, the charge circuit includes：The high frequency transformer T2 being connected with the inductance L2 other ends and its primary side
The current-limiting resistance R1 of negative pole connection, the switching tube being connected between the current-limiting resistance R1 and the rectification circuit direct current negative pole
Q3, the secondary current rectifying and wave filtering circuit being connected with the high frequency transformer T2 secondary.
It is preferred that, also including charge system, ARM chip controllers, human-computer interaction interface and accessory power supply, with the charging
Loop constitutes the charging pile of electric automobile together, and the charging pile is arranged on inside the tower of LED street lamp.
It is preferred that, current signal and voltage signal of the control module in the driver circuit received, warp
Processing obtains control signal, and the switching tube Q1 and the switching tube Q2 open and close process are controlled with this.
It is preferred that, in automobile charging process, opened described in the ARM chip controllers and control module cooperation control
Pipe Q1, Q2 and Q3 open and close process are closed, to complete the charging to automobile, while eliminating the interference to LED street lamp.
The present invention at least includes following beneficial effect：A kind of LED street lamp with charging pile provided, in power driving circuit
In have additional correcting circuit, improve the power factor (PF) of LED street lamp system, while effectively reduce the influence of the abnormal ripple of electric current,
The stability of LED street lamp work is improved, while realizing the function to LED street lamp exiting light beam intensity real-time, tunable；On LED roads
The charging pile of electric automobile is had additional in the drive circuit of lamp, resource is taken full advantage of, while being brought to automobile user
Huge convenience, solves the problem of charging electric vehicle is difficult, is more beneficial for the popularization and application of electric automobile, not only reduces energy
Source is consumed, and also advantageous effects is brought to environment, with huge application value.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the structural representation of the LED street lamp with charging pile of the present invention；
Fig. 2 is the schematic circuit of one embodiment of the present of invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
In this manual, when an element is mentioned as " be connected to or be coupled in " another element or " is arranged on another
In one element " when, its can " direct " be connected to or be coupled in another element or " direct " is arranged in another element.Or with
The intervenient mode of other elements is connected to or is coupled in another element or is arranged in another element, unless it is mentioned as
" be directly coupled to or be connected to " another element or " directly setting " are in another element.It should be appreciated that used herein all
As " having ", "comprising" and " comprising " term do not allot the presence or addition of one or more of the other element or its combination.
As shown in Fig. 1 according to a kind of way of realization of the present invention, including：
Correcting circuit 20, AC power by being connected after the rectification of rectification circuit 10 with one end of the correcting circuit 20, its
For being corrected and compensation of power factor to the current distortion in driver circuit, the quality of power supply is improved, harmonic wave pair is reduced
Power supply is interfered, while making LED street lamp steady operation, reduces the flicker of its emergent ray；Filter circuit 30, its one end and school
The other end connection of positive circuit 20, and the electric current after being handled through the correcting circuit 20 is received, the alternating component in electric current is filtered,
While gentle current break so that the curent change in the driver circuit is more stablized, and Eliminate highter harmonic and clutter are to institute
State the influence of LED street lamp, cause the flicker of light, difference and prior art, rectification circuit 10 and filter circuit 30 it
Between have additional correcting circuit 20, if fairing is directly connected with filter, electric current has one on filter capacitor and filled
Discharge process, when instantaneous AC input voltage is less than the voltage on filter capacitor, commutation diode is not turned on, that is, institute
It only can just be turned near alternating current peak value, and in extremely narrow pass range, great conducting electric current can be produced, make power supply
Electric current is in pulse type, reduces the power factor of system, while the unstable of street lamp emergent ray is caused, influence illumination effect
Really, while the electric current of pulse type can be impacted to LED, its Q-percentile life is reduced.The purpose of this correcting circuit 20 is set just
It is, in order to solve this problem, the direct current of pulsation to be become by the interrupted current waveform of high frequency by correcting circuit 20, is passing through
Filter circuit 30 is sent to after rectification so that the same phase of current waveform and voltage waveform of output, improves the power of LED illumination member
Factor, and the current distortion in circuit is effectively eliminated, improve the illuminating effect of street lamp；PWM on-off circuits 40, its one end with
The other end connection of filter circuit 30, the LED street lamp is driven by the ON time for the PWM switching tubes for controlling to set thereon
Work, to realize the function of being dimmed in real time to the LED street lamp, lotus root connects LED street lamp 60 and PWM on-off circuits 40, so as to realize
LED street lamp 60 is electrically connected.Charge circuit 54, it is connected between filter circuit 30 and PWM on-off circuits 40, for electronic
Automobile is charged, it is achieved thereby that in street lamp integration electric automobile charging pile function, solve charging electric vehicle difficult
The problem of, the use of electric automobile has been promoted, has been that society decreases waste gas discharge while saving the energy, optimizes life cycle
Border；Wherein, the correcting circuit 20 and the PWM on-off circuits 40 are controlled from same control module 70 with simultaneously, so that
The current constant control to the LED street lamp is realized, and the bright dark degree of street lamp can be conveniently adjusted according to the power of ambient light, is saved
Electric energy is saved, meanwhile, when automobile charges, the running of the correcting circuit 20 and the PWM on-off circuits 40 is controlled, charging is eliminated
Impact of the electric current on LED street lamp influences, it is achieved thereby that the illumination functions and the charge function of electric automobile of LED street lamp, and fill
Divide and make use of available circuit element, cost is saved, with huge promotional value.
In a kind of example, as shown in Fig. 2 the correcting circuit 20 is connected to the DC output end of rectification circuit 10, institute
The structure for stating correcting circuit 20 is：Inductance L1, it is connected on direct-flow positive pole, one end and the direct current output positive pole of rectification circuit 10
Connection, for suppressing electric current instantaneous mutation；NPN triode Q1 is used in switching tube, the present embodiment, naturally it is also possible to use other
Element with switching function, such as metal-oxide-semiconductor, the colelctor electrode of the triode Q1 are connected with the inductance L1 other end, emitter stage
It is connected with direct current negative pole, triode Q1 turn-on and turn-off is controlled by adjusting the driving voltage of base stage, continuous pulsation
Constant current cuts into high frequency interrupted current；Diode D1, its anode tap is connected with inductance L1 and triode Q1 connection end, for pair
The high frequency interrupted current carries out rectification again, and delivers to filter circuit 30.
In the LED street lamp with charging pile of embodiment of the present invention, the filter circuit 30 includes：With the diode
The inductance L2 of D1 negative electrodes connection, it is connected in the electric capacity C1 and C2 at its two ends in parallel, so as to form filter circuit, the electric capacity C1,
C2 is used to filtering alternating component in electric current, the inductance L2 be used to buffering described electric capacity C1, C2 from discharge process, through described
Electric current after the processing of correcting circuit 20 is again after the filtered filtering process of circuit 30 so that the same phase of voltage and current waveform and phase
It is identical, the power factor (PF) of system is improved, and high impulse harmonic wave and current distortion in circuit are eliminated, stabilize LED roads
The light extraction of lamp, reduces flicker.It is understood that the present embodiment is to propose a kind of way of realization, other have correction electricity
Road function and filter circuit function circuit structure, power factor (PF) and other shapes of elimination noise are improved with the use of to reach
Formula accommodation is also within the declared range of the present invention.
In embodiments of the present invention, the PWM on-off circuits 40 include：With isolating that the inductance L2 other ends are connected
Transformer T1, the current-limiting resistance R2 being connected with its negative pole, the poles of NPN tri- being connected between the current-limiting resistance R2 and direct current negative pole
Pipe Q2, the PWM on-off circuits 40 are used for the bright dark degree for adjusting LED street lamp, to reach road conditions lighting demand, particular by
Triode Q2 base drive voltage is controlled to adjust triode Q2 ON time, so as to realize the bright dark of control LED street lamp.
In embodiments of the present invention, the LED street lamp with charging pile also includes inductance L4, and it is connected on the limit
Between leakage resistance R2 and the isolating transformer T1, the mutation for relaxing induced electromotive force on the isolating transformer T1 is protected
Shield triode Q2 is not damaged by, and is slowed down the self-oscillation of the isolating transformer T1, is stablized the light extraction of the LED street lamp.
In embodiments of the present invention, the charge circuit 54 includes：The high frequency being connected with the inductance L2 other ends becomes
Depressor T2, the current-limiting resistance R1 being connected with its primary side negative pole, to be connected on the current-limiting resistance R1 and the rectification circuit direct current negative
NPN triode Q3 between pole, the current rectifying and wave filtering circuit being connected with the high frequency transformer T2 secondary, current rectifying and wave filtering circuit include
Commutation diode D2, filter capacitor C4 and inductance L5, described charge back is controlled by controlling NPN triode Q3 ON time
The power output on road, realizes the charging to on-vehicle battery rapidly and efficiently.
In embodiments of the present invention, the LED street lamp with charging pile also includes also including charge system 51, ARM
Chip controller 52, human-computer interaction interface 53 and accessory power supply 55, constitute filling for electric automobile together with the charge circuit 54
Electric stake 5, the charging pile 5 is arranged on inside the tower of LED street lamp, during charging, can take out charging connection plug out of tower.
In embodiments of the present invention, the LED street lamp 60 by diode D3, electric capacity C1 and inductance L3 constitute it is secondary
Filter rectifier is connected to the secondary of the isolating transformer T1, and control module 70 is adjusted according to voltage, current signal in circuit
The whole ON time to triode Q1 and Q2, realizes dark regulation bright to the LED street lamp.
In embodiments of the present invention, control module 70 described in the present embodiment is answered using correction and PWM switching functions
Box-like chip, it obtains control signal according to the current signal and voltage signal received through processing, and simultaneous transmission is extremely
The base stage of the NPN triode Q1 and the NPN triode Q2, its open and close process is controlled with this, while ARM chip controllers
52 coordinate control Q3 ON time, so as to realize LED street lamp light modulation and coordinate the process of charging electric vehicle, eliminate automobile and fill
Electric current is to the impulsive disturbance of LED street lamp, to reach the dual-use function of illumination and charging.Specifically, in the friendship of rectification circuit 10
Stream end sets divider resistance R5 and circuit R6 for gathering the voltage signal of ac input end, and inputs chip pin 3.In rectification
The DC output end of circuit 10 sets resistance R10 and circuit R11 for gathering the voltage signal of direct-flow input end, and inputs chip
Pin 2.Voltage-stabilized power supply is provided with direct-flow input end, it is by divider resistance R9, voltage-regulator diode DZ1 and diode D5 structures
Into, and be connected with the pin of chip 1, provide power supply for chip.The pin of chip 1 is connected by electric capacity C5 with 12 pins, and 12 pins connect
Ground, for eliminating oscillation, divider resistance R7 is provided with the direct current both positive and negative polarity between filter circuit 30 and PWM on-off circuits 40
With circuit R8, for gathering the voltage signal of filtered input, and chip pin 9 is inputted.The pin connecting triode of chip 8
Q2 colelctor electrode, for gathering PWM feedback electric current.While the pin connecting triode Q2 of chip 11 base stage, for controlling three poles
Pipe Q2 break-make.The pin of chip 5 is connected with LED street lamp, gathers the current signal of LED street lamp.The pin of chip 10 and triode Q1
Base stage connection, control its break-make.Ac input end is additionally provided with switch S, and the pin of chip 4 is connected thereto, when appearance in circuit
During excessively stream, controlling switch S disconnects, and thereby protects late-class circuit, 7 pins of chip are connected with high frequency transformer T2 primary side negative poles,
Gather the current signal on charge circuit 54.The accessory power supply 55 is by divider resistance R4, voltage-regulator diode DZ2 and diode D4
Constitute, the ARM chip controllers 52 are connected on the direct-flow positive pole of driver circuit by accessory power supply 55, ARM chip controls
Device 52 gathers the charging status signal of on-vehicle battery, and controls NPN triode Q3 ON time, so as to realize to charging process
Effective control.
As described above, the present invention improves the power factor (PF) of LED street lamp system, while effectively reducing the abnormal ripple of electric current
Influence, improves the stability of LED street lamp work, while realizing the function to LED street lamp exiting light beam intensity real-time, tunable；
The charging pile of electric automobile is had additional in the drive circuit of LED street lamp, existing system resource is taken full advantage of, and do not interfere with
The normal work of LED street lamp, while bringing huge convenience to automobile user, solves asking for charging electric vehicle hardly possible
Topic, is more beneficial for the popularization and application of electric automobile, not only reduces energy resource consumption, also bring advantageous effects to environment, have
Huge application value.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (8)
1. a kind of LED street lamp with charging pile, it is characterised in that including：
Correcting circuit, it is used to be corrected and compensation of power factor the current distortion in driver circuit, improves electric energy
Quality, reduces harmonic wave and power supply is interfered, while making LED street lamp steady operation, reduce the flicker of its emergent ray；The school
Positive circuit is connected to the DC output end of rectification circuit, and the structure of the correcting circuit is：Inductance L1, it is connected on direct-flow positive pole
On, for suppressing electric current instantaneous mutation；Switching tube Q1, it is connected between direct current both positive and negative polarity, and one end is connected to the inductance L1
Leading-out terminal, for the constant current of continuous pulsation to be cut into high frequency interrupted current ripple；Diode D1, its anode and the inductance L1
Leading-out terminal connection, for the high frequency interrupted current carry out rectification again；
Filter circuit, it receives the electric current after being handled through the correcting circuit, filters the alternating component in electric current, while gentle electricity
Stream mutation so that the curent change in the driver circuit is more stablized, and Eliminate highter harmonic and clutter are to the driver circuit
Influence；
PWM on-off circuits, it drives the LED street lamp to work by the ON time of controlling switch pipe, to realize to described
The function that LED street lamp is dimmed in real time；
Charge circuit, it is arranged between the filter circuit and the PWM on-off circuits, for being filled to electric automobile
Electricity；
Wherein, the correcting circuit and the PWM on-off circuits are controlled from same control module with simultaneously, coordinate automobile
Charging process, realizes the current constant control to the LED street lamp, eliminates the influence when automobile charges to the LED street lamp.
2. the LED street lamp as claimed in claim 1 with charging pile, it is characterised in that the filter circuit includes:With described two
The inductance L2 of pole pipe D1 negative electrodes connection, the electric capacity C2 and C3 for being connected in inductance L2 two ends in parallel, described electric capacity C2, C3 are used to filter
Alternating component in electric current, the inductance L2 be used to buffering described electric capacity C2, C3 from discharge process.
3. the LED street lamp as claimed in claim 2 with charging pile, it is characterised in that the PWM on-off circuits include：With institute
State the inductance L2 other ends connection isolating transformer T1, be connected with its primary side negative pole current-limiting resistance R2, be connected on the current limliting
Switching tube Q2 between resistance R2 and the rectification circuit direct current negative pole.
4. the LED street lamp as claimed in claim 3 with charging pile, it is characterised in that also including inductance L4, it is connected on described
Between current-limiting resistance R2 and the isolating transformer T1, the mutation for relaxing induced electromotive force on the isolating transformer T1,
Stablize the light extraction of the LED street lamp.
5. the LED street lamp as claimed in claim 1 with charging pile, it is characterised in that the charge circuit includes：With the electricity
The high frequency transformer T2 of sense L2 other ends connection, the current-limiting resistance R1 being connected with its primary side negative pole, it is connected on the current-limiting resistance
Switching tube Q3 between R1 and the rectification circuit direct current negative pole, the secondary rectification being connected with high frequency transformer T2 secondary filter
Wave circuit.
6. the LED street lamp as claimed in claim 5 with charging pile, it is characterised in that also including charge system, ARM chip controls
Device processed, human-computer interaction interface and accessory power supply, constitute the charging pile of electric automobile, the charging pile together with the charge circuit
It is arranged on inside the tower of LED street lamp.
7. the LED street lamp with charging pile as claimed in claim 6, it is characterised in that the control module is according to receiving
Current signal and voltage signal in the driver circuit, are obtained control signal through processing, the switching tube Q1 are controlled with this
With the open and close process of the switching tube Q2.
8. the LED street lamp as claimed in claim 7 with charging pile, it is characterised in that in automobile charging process, the ARM
Chip controller and the control module coordinate control described switching tube Q1, Q2 and Q3 open and close process, to complete to automobile
Charging, while eliminating the interference to LED street lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410796948.2A CN104582149B (en) | 2014-12-19 | 2014-12-19 | A kind of LED street lamp with charging pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410796948.2A CN104582149B (en) | 2014-12-19 | 2014-12-19 | A kind of LED street lamp with charging pile |
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| CN104582149B true CN104582149B (en) | 2017-07-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105101549A (en) * | 2015-08-07 | 2015-11-25 | 苏州晶雷光电照明科技有限公司 | Control method of street lamp control system |
| CN105072764A (en) * | 2015-08-19 | 2015-11-18 | 深圳市自然光环境艺术有限公司 | Multifunctional intelligent urban illumination and public information system |
| CN105953137A (en) * | 2016-02-04 | 2016-09-21 | 任红霞 | Multifunctional street lamp type charging pile |
| CN109309998B (en) * | 2018-12-04 | 2023-12-29 | 天津光电惠高电子有限公司 | Tower lamp signal acquisition device and implementation method |
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| CN103326357A (en) * | 2013-06-17 | 2013-09-25 | 曹广平 | Electric vehicle equipment power supply and distribution method |
| CN204103555U (en) * | 2013-11-21 | 2015-01-14 | 国家电网公司 | A kind of charging pile device |
| CN103921690A (en) * | 2014-05-09 | 2014-07-16 | 陈继业 | Electric vehicle charging pile |
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| CN104582149A (en) | 2015-04-29 |
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Effective date of registration: 20180208 Address after: 226600 Jiangsu city of Nantong province Haian Industrial Park, Bridgeport Road No. 68 Patentee after: NANTONG HUAWEI POWER EQUIPMENT Co.,Ltd. Address before: Hu high tech Zone of Suzhou City, Jiangsu province 215151 Guan Hu Yang Road No. 88 Patentee before: SUZHOU JIA YI DA ELECTRIC APPLIANCE Co.,Ltd. |
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Denomination of invention: LED street lamp with charging post Effective date of registration: 20210622 Granted publication date: 20170718 Pledgee: Bank of China Limited by Share Ltd. Haian branch Pledgor: NANTONG HUAWEI POWER EQUIPMENT Co.,Ltd. Registration number: Y2021980005075 |
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Denomination of invention: LED street lamp with charging pile Effective date of registration: 20220705 Granted publication date: 20170718 Pledgee: Bank of China Limited by Share Ltd. Haian branch Pledgor: NANTONG HUAWEI POWER EQUIPMENT Co.,Ltd. Registration number: Y2022980009842 |
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