CN209282907U - A kind of solar street light power supply system - Google Patents
A kind of solar street light power supply system Download PDFInfo
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- CN209282907U CN209282907U CN201920002194.7U CN201920002194U CN209282907U CN 209282907 U CN209282907 U CN 209282907U CN 201920002194 U CN201920002194 U CN 201920002194U CN 209282907 U CN209282907 U CN 209282907U
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Abstract
The utility model embodiment discloses a kind of solar street light power supply system, including solar battery, battery, controller and load lamp, wherein the controller includes central control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit.The battery is single-lithium-battery core, the driving circuit that the solar street light power supply system passes through the access 12V on the major loop of PWM charging circuit, and using the driving circuit of 12V as the switch of accessory power supply control the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, solve the problems, such as that the conducting of metal-oxide-semiconductor caused by low voltage difference is difficult and metal-oxide-semiconductor generates heat, entire solar street light power supply system is powered using single-lithium-battery core for solar street light, and achieve the purpose that continually and steadily to work, to realize the effective use of single-lithium-battery core.
Description
Technical field
The utility model relates to power supply control field more particularly to a kind of solar street light power supply systems.
Background technique
Solar controller is applied in solar energy photovoltaic system, and it is solar charging discharging controller that he is whole, coordinates too
It is positive can solar panel, battery, load work, be very important component in photovoltaic system.Make entire solar energy photovoltaic system
Efficiently, safe running.Solar street lamp controller is mainly used for the sun such as family, shopping centre, factory, traffic, pastoral area, communication
It can power supply system.
Solar street lamp controller is mostly 12V/24V system on the market, with the development of science and technology, present lithium battery
Have become the mainstream of solar street lamp controller battery unit.But as lithium battery applications are more and more, accordingly not
Good elimination product is also more and more, however these superseded lithium battery packs are often that there are problem, big portions for individual battery cores therein
Point battery core be it is normal, single-lithium-battery core with lithium battery pack it is superseded not only can waste of resource, but also environment is caused very big
Pollution.So the utilization of single-lithium-battery core becomes an extremely urgent problem.
Utility model content
The utility model aim is to provide a kind of solar street light power supply system, to solve the above problems.
The utility model solves technical problem and adopts the following technical scheme that
A kind of solar street light power supply system, including solar battery, battery, controller and load lamp, wherein described
Controller includes central control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit, and the battery is single
Lithium cell is saved, the major loop of the PWM charging circuit includes:
The drain electrode of first metal-oxide-semiconductor, first metal-oxide-semiconductor is electrically connected with the cathode of solar battery, first metal-oxide-semiconductor
Grid is electrically connected with the driving circuit of 12V；
The grid of second metal-oxide-semiconductor, second metal-oxide-semiconductor is electrically connected with the driving circuit of 12V, and passes through first resistor and institute
The source electrode electrical connection of the first metal-oxide-semiconductor is stated, the source electrode of second metal-oxide-semiconductor is electrically connected with the source electrode of first metal-oxide-semiconductor, and described the
The drain electrode of two metal-oxide-semiconductors is electrically connected by the parallel connection of second resistance and 3rd resistor with battery terminal negative；
First polar capacitor, the anode of the first polar capacitor are electric with the solar battery anode and battery positive voltage respectively
Connection, the cathode ground connection of first polar capacitor.
Solar street light power supply system disclosed by the utility model, by accessing 12V on the major loop of PWM charging circuit
Driving circuit, and using the driving circuit of 12V as accessory power supply control the first MOS pipe and the second metal-oxide-semiconductor switch, solution
The problem of difficult and metal-oxide-semiconductor fever is connected in metal-oxide-semiconductor caused by low voltage difference of having determined, and enables entire solar street light power supply system sharp
It is powered with single-lithium-battery core for solar street light, and achievees the purpose that continually and steadily to work, to realize single-lithium-battery core
Effective use.
Detailed description of the invention
Fig. 1 is a kind of existing solar street light power supply system；
Fig. 2 is the major loop schematic diagram of solar street light power supply system PWM charging circuit provided by the utility model；
The driving circuit signal that Fig. 3 is the 12V of solar street light power supply system PWM charging circuit provided by the utility model
Figure；
Fig. 4 is that the solar power supply circuit of solar street light power supply system PWM charging circuit provided by the utility model shows
It is intended to；
Fig. 5 is the major loop schematic diagram of solar street light power supply system PWM discharge circuit provided by the utility model；
Fig. 6 is the drive circuit schematic diagram of solar street light power supply system PWM discharge circuit provided by the utility model；
Fig. 7 is another solar street light power supply system schematic diagram provided by the utility model.
Specific embodiment
As described in background, the utilization of single-lithium-battery core becomes an extremely urgent problem at present.Inventor
For this problem, is explored by conscientious thinking and single-lithium-battery core is used solar street light power supply system by experiment, discovery
It is a feasible scheme in system.
By carefully analyzing to existing solar street light power supply system, inventor has found existing solar street light power supply
System, comprising: solar battery, battery, controller and load lamp.Wherein, as shown in Figure 1, the controller includes center
Control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit.In physical circuit distribution, central control circuit
It is electrically connected, is mainly controlled by MCU, system voltage is adopted with PWM charging circuit, battery management circuit and PWM discharge circuit respectively
Sample simultaneously imported into control algolithm and is calculated, then to the logical output control signal of entire letter, and finally to the charge and discharge of whole system
Electricity and battery management carry out logic control；Battery management circuit is electrically connected with battery, and respectively with PWM charging circuit and PWM
Discharge circuit electrical connection, internal mainly includes sample circuit, protection circuit and indicator light circuit, and realization is monitored battery
And protection.
It has been investigated that the battery of existing solar street light power supply system is based on lithium battery pack, 12V system PWM
Charging MOS drive circuit inside charging circuit is driven by solar battery pressure difference, i.e., the driving of switch metal-oxide-semiconductor is by solar energy
The positive and negative anodes pressure difference of battery determines.For single-lithium-battery core, voltage only has 3.2V, solar battery positive and negative anodes when charging
Pressure difference by single-unit lithium cell voltage clamping to 3.2V, so the driving voltage of switch metal-oxide-semiconductor is too low, cause metal-oxide-semiconductor conducting tired
Difficulty, and the risk of fever damage is had having the metal-oxide-semiconductor for driving low conducting.
Inventor aiming at the problem that finding further above, by deeper into thinking and experiment, propose a kind of sun
Energy streetlight power supply system, the solar street light power supply system include solar battery, battery, controller and load lamp, wherein
The controller includes central control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit, and the battery is
Single-lithium-battery core, the major loop of the PWM charging circuit include: the first metal-oxide-semiconductor, the drain electrode of first metal-oxide-semiconductor and solar energy
The cathode of battery is electrically connected, and the grid of first metal-oxide-semiconductor is electrically connected with the driving circuit of 12V；Second metal-oxide-semiconductor, described second
The grid of metal-oxide-semiconductor is electrically connected with the driving circuit of 12V, and is electrically connected by first resistor with the source electrode of first metal-oxide-semiconductor,
The source electrode of second metal-oxide-semiconductor is electrically connected with the source electrode of first metal-oxide-semiconductor, and the drain electrode of second metal-oxide-semiconductor passes through the second electricity
Resistance and the parallel connection of 3rd resistor are electrically connected with battery terminal negative；First polar capacitor, the first polar capacitor anode respectively with institute
State solar battery anode and battery positive voltage electrical connection, the cathode ground connection of first polar capacitor.
Above-mentioned solar street light power supply system by the major loop of PWM charging circuit access 12V driving circuit, and
Using the driving circuit of 12V as the switch of accessory power supply control the first metal-oxide-semiconductor and the 2nd MOS pipe, solves low voltage difference and cause
The problem of metal-oxide-semiconductor conducting is difficult and metal-oxide-semiconductor fever, enable entire solar street light power supply system using single-lithium-battery core come
It powers for solar street light, and achievees the purpose that continually and steadily to work, to realize the effective use of single-lithium-battery core.
The technical solution of the utility model is further elaborated below with reference to examples and drawings.
Present embodiments provide a kind of solar street light power supply system, including solar battery, battery, controller and negative
Carry lamp, wherein the controller includes central control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit.Its
In, the battery is single-lithium-battery core.By STM32 chip as master chip, STM32 chip has the central control circuit
12 channels AD, can be realized system voltage and sample and imported into control algolithm and calculated, and then export control letter to system
Number.Battery management circuit includes that sample circuit (can recognize cell voltage 2.8V-8.4V, and sample to input and output electric current
To achieve the purpose that control electric current), protection circuit and indicator light circuit, for being monitored and protecting to battery.
As shown in Fig. 2, the major loop of the PWM charging circuit includes:
First metal-oxide-semiconductor Q1, the drain electrode of the first metal-oxide-semiconductor Q1 are electrically connected with the cathode PV- of solar battery, and described
The grid of one metal-oxide-semiconductor is electrically connected with the driving circuit of 12V；
Second metal-oxide-semiconductor Q2, the grid of the second metal-oxide-semiconductor Q2 is electrically connected with the driving circuit of 12V, and passes through first resistor
R1 is electrically connected with the source electrode of the first metal-oxide-semiconductor Q1, the source electrode of the source electrode of the second metal-oxide-semiconductor Q2 and the first metal-oxide-semiconductor Q1
Electrical connection, parallel connection and battery terminal negative BAT- of the drain electrode of the second metal-oxide-semiconductor Q2 by second resistance R2 and 3rd resistor R3
Electrical connection；
First polar capacitor C1, the first polar capacitor C1 anode respectively with the solar battery anode PV+ and electric power storage
Pond anode BAT+ electrical connection, the cathode ground connection of the first polar capacitor C1.
In addition, being additionally provided with a two-way TVS pipe, between the positive and negative anodes of solar battery to prevent rushing for high current
It hits, protects the controller.
As shown in figure 3, the driving circuit of the 12V, comprising:
Emitter input the first PWM wave PWQG_PV of third transistor Q3, the third transistor Q3, the described 3rd 3
The base stage of pole pipe Q3 is grounded by the 4th resistance R4, the collector of the third transistor Q3 and the anode electricity of first diode D1
Connection；
The emitter of 4th triode Q4, the 4th triode Q4 are grounded, and the base stage of the 4th triode Q4 passes through
5th resistance R5 accesses the solar battery anode PV+, the collector of the 4th triode Q4 and the second diode D2's
Anode electrical connection；
The anode of third diode D3, the third diode D3 are electrically connected with solar battery cathode PV-, and pass through the
Six resistance R6 access the solar battery anode PV+, the cathode of the third diode D3 pass sequentially through the 7th resistance R7 and
8th resistance R8 is electrically connected with the cathode of the cathode of the first diode D1 and the second diode D2 respectively；
The base stage of 5th triode Q5, the 5th triode Q5 pass through the 7th resistance R7's and third diode D3
Cathode electrical connection, the collector of the 5th triode Q5 access solar power supply circuit by the 9th resistance R9, and the described 5th
The emitter of triode Q5 is electrically connected with the source electrode of the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 respectively；
The collector of 6th triode Q6, the 6th triode Q6 pass through the tenth resistance R10 and solar power supply circuit
Electrical connection, grid of the emitter of the 6th triode Q6 respectively with the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 are electrically connected
Connect, the base stage of the 6th triode Q6 respectively with the collector of the 5th triode Q5, the 4th zener diode D4 it is negative
The electrical connection of the cathode of pole and the 5th diode D5, the hair of the anode and the 5th triode Q5 of the 4th zener diode D4
Emitter-base bandgap grading electrical connection, the anode of the 5th diode D5 pass through the emitter of eleventh resistor R11 and the 6th triode Q6
Electrical connection.
As shown in figure 4, the solar power supply circuit, comprising:
Boost chip U1, the boost chip U1 include NC interface, IN interface, EN interface, SW interface, GND interface and FB
Interface；
Wherein, the positive PV+ of the IN interface and the solar battery is electrically connected, and passes through inductance L1 and the SW interface
Electrical connection, and pass through the earth of the second polar capacitor C2, third capacitor C3, the 4th capacitor C4 and the 5th capacitor C5；
The EN interface is electrically connected by twelfth resistor R12 with the IN interface；
The SW interface is electrically connected with the anode of the 6th rectifier diode D6；
The GND interfacing ground；
The FB interface is electrically connected by thirteenth resistor R13 with the cathode of the 6th rectifier diode D6, by the
14 resistance R14 ground connection；
The cathode of the 6th rectifier diode D6 is electrically connected with the driving circuit of the 12V, and by the 6th capacitor C6,
The earth of 7th capacitor C7 and the 8th capacitor C8.
When specific works, monolithic machine testing battery voltage, if battery voltage is lower than setting value, then it represents that battery electricity
Amount is insufficient, needs to open charge circuit.At this point, the first PWM wave PWQG_PV of single-chip microcontroller output is low level, third transistor
Q3 shutdown, the 5th triode Q5 base stage are turned off without high level, and the 6th triode Q6 base stage is high level conducting, solar powered electricity
It is 12V that road, which exports VDD, and VDD is connected the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 by the 6th triode Q6, starts to electric power storage
The charging of pond battery.First PWM wave high level for a period of time, metal-oxide-semiconductor is turned off, and detect battery voltage, if battery voltage
Then continue to charge a battery lower than setting value.If battery voltage, which is higher than setting value, will close the first metal-oxide-semiconductor Q1 and the 2nd MOS
Pipe Q2 stops charging.The PWM charging circuit can control solar battery and fill by set charging curve to battery
Electricity, and avoid battery because of over-discharge, overcharges, superpressure and damage.
Solar street light power supply system disclosed in the present embodiment, by accessing 12V's on the major loop of PWM charging circuit
Driving circuit, and using the driving circuit of 12V as the switch of accessory power supply control the first metal-oxide-semiconductor and the second metal-oxide-semiconductor, it solves
The problem of conducting of metal-oxide-semiconductor caused by low voltage difference hardly possible and metal-oxide-semiconductor fever, entire solar street light power supply system is enabled to utilize list
Section lithium cell powers for solar street light, and achievees the purpose that continually and steadily to work, to realize having for single-lithium-battery core
Effect utilizes.
As shown in figure 5, the major loop of the PWM discharge circuit, comprising:
7th metal-oxide-semiconductor Q7, the drain electrode of the 7th metal-oxide-semiconductor Q7 are electrically connected with the load lamp cathode LOAD-, and described
The source electrode of seven metal-oxide-semiconductor Q7 is electrically connected by the 17th resistance R17 with the grid of the 7th metal-oxide-semiconductor Q7, passes sequentially through the 15th
Resistance R15, the parallel connection of the 16th resistance 16 and second resistance R2, the parallel connection of 3rd resistor R3 and the cathode BAT- of the battery
Electrical connection, the grid electricity of the 7th MOS pipe Q7 are electrically connected with the driving circuit of PWM discharge circuit.15th resistance R15 and
16th resistance R16 is current sampling resistor.
In addition, being additionally provided with a two-way TVS pipe between the positive and negative anodes of battery, to prevent the impact of high current, protect
Protect the controller.
As shown in fig. 6, the driving circuit of the PWM discharge circuit, comprising:
The collector of 8th triode Q8, the 8th triode Q8 are discharged by the 18th resistance R18 and PWM
The major loop of circuit is electrically connected, and the emitter of the 8th triode Q8 is electrically connected with storage battery power supply circuit, and passes through the 9th
The earth of capacitor C9 and the tenth capacitor C10, the base stage of the 8th triode Q8 by the 19th resistance R19 with it is described
The emitter of 8th triode Q8 is electrically connected；
7th diode D7, the 7th diode D7 anode input the second PWM wave PWQG_load, the described 7th 2
The cathode of pole pipe D7 is electrically connected with one end of the 20th resistance R20；
The collector of 9th triode Q9, the 9th triode Q9 pass through the 21st resistance R21 and the described 8th 3
The base stage of pole pipe Q8 is electrically connected, and the base stage of the 9th triode Q9 is electrically connected with the other end of the 20th resistance R20,
And be electrically connected with the cathode of the 8th diode D8, the emitter and the 8th diode D8 of the 9th triode Q9 is just
Pole electrical connection, ground connection, and be electrically connected by the 22nd resistance R22 with the base stage of the 9th triode Q9.
The storage battery power supply circuit is identical as the solar power supply circuit structure, and the difference of the two is mainly the storage
The IN interface of boost chip is electrically connected with the battery positive voltage in battery feed circuit, boosting in the storage battery power supply circuit
The SW interface of chip is electrically connected by rectifier diode with the driving circuit of the PWM discharge circuit.
In specific works, battery terminal negative BAT- is connect by the 7th metal-oxide-semiconductor Q7 with load lamp cathode LOAT- and is electrically connected
It connects, since the conduction voltage drop of the 7th metal-oxide-semiconductor Q7 is small, therefore realizes concora crush output.Storage battery power supply circuit output VDD is similarly 12V,
By the gate driving of the 7th metal-oxide-semiconductor Q7 of the 8th triode Q8 and the 18th resistance R18 connection, the 8th triode Q8 is turned off, then
7th metal-oxide-semiconductor Q7 does not work without driving, load lamp.It could be only connected when the 8th triode Q8 base stage is low level, the 7th MOS
Pipe Q7 has driving that can just light load lamp, and the 8th triode Q8 base stage is controlled by the 9th triode Q9, the 9th triode Q9 base stage
It is controlled by the second PWM wave PWQG_load that single-chip microcontroller exports.Battery voltage is low then to close the 7th metal-oxide-semiconductor Q7, stops load
Output, open simultaneously charging the first metal-oxide-semiconductor and the second metal-oxide-semiconductor start to charge, on the contrary it is then stop charge start to discharge.
As shown in fig. 7, the solar street light power supply system, further includes infrared communications set, and the infrared communication fills
It sets and is electrically connected with the central control circuit.
In addition, the sheathing material of the solar street light power supply system is aluminium, external electromagnetic wave can be shielded to internal electricity
Road influences and the internal electromagnetic wave outside radiation generated, and enhances heat dissipation.
The sequencing of above embodiments is not only for ease of description, represent the advantages or disadvantages of the embodiments.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (8)
1. a kind of solar street light power supply system, including solar battery, battery, controller and load lamp, wherein the control
Device processed includes central control circuit, PWM charging circuit, battery management circuit and PWM discharge circuit, which is characterized in that the storage
Battery is single-lithium-battery core, and the major loop of the PWM charging circuit includes:
The drain electrode of first metal-oxide-semiconductor, first metal-oxide-semiconductor is electrically connected with the cathode of solar battery, the grid of first metal-oxide-semiconductor
It is electrically connected with the driving circuit of 12V；
The grid of second metal-oxide-semiconductor, second metal-oxide-semiconductor is electrically connected with the driving circuit of 12V, and passes through first resistor and described the
The source electrode of one metal-oxide-semiconductor is electrically connected, and the source electrode of second metal-oxide-semiconductor is electrically connected with the source electrode of first metal-oxide-semiconductor, and described second
The drain electrode of metal-oxide-semiconductor is electrically connected by the parallel connection of second resistance and 3rd resistor with battery terminal negative；
The anode of first polar capacitor, the first polar capacitor is electrically connected with the solar battery anode and battery positive voltage respectively
It connects, the cathode ground connection of first polar capacitor.
2. solar street light power supply system according to claim 1, which is characterized in that the driving circuit of the 12V, comprising:
Third transistor, the emitter of the third transistor input the first PWM wave, and the base stage of the third transistor passes through the
Four resistance eutral groundings, the collector of the third transistor are electrically connected with the anode of first diode；
4th triode, the emitter ground connection of the 4th triode, the base stage of the 4th triode are connect by the 5th resistance
Enter the solar battery anode, the collector of the 4th triode is electrically connected with the anode of the second diode；
The anode of third diode, the third diode is electrically connected with solar battery cathode, and is accessed by the 6th resistance
Solar battery anode, the cathode of the third diode pass sequentially through the 7th resistance and the 8th resistance respectively with described the
The electrical connection of the cathode of the cathode of one diode and the second diode；
The base stage of 5th triode, the 5th triode is electrically connected by the 7th resistance with the cathode of the third diode,
The collector of 5th triode accesses solar power supply circuit, the emitter point of the 5th triode by the 9th resistance
It is not electrically connected with the source electrode of first metal-oxide-semiconductor and the second metal-oxide-semiconductor；
The collector of 6th triode, the 6th triode is electrically connected by the tenth resistance with solar power supply circuit, described
The emitter of 6th triode is electrically connected with the grid of first metal-oxide-semiconductor and the second metal-oxide-semiconductor respectively, the 6th triode
Collector, the cathode of fourth zener diode and the cathode of fiveth diode of the base stage respectively with the 5th triode are electrically connected
It connects, the anode of the 4th zener diode is electrically connected with the emitter of the 5th triode, and the 5th diode is just
Pole is electrically connected by eleventh resistor with the emitter of the 6th triode.
3. solar street light power supply system according to claim 2, which is characterized in that the solar power supply circuit, comprising:
Boost chip, the boost chip include NC interface, IN interface, EN interface, SW interface, GND interface and FB interface；
Wherein, the anode of the IN interface and the solar battery is electrically connected, and is electrically connected by inductance with the SW interface, and
By the second polar capacitor, third capacitor, the 4th capacitor and the 5th capacitor earth；
The EN interface is electrically connected by twelfth resistor with the IN interface；
The SW interface is electrically connected with the anode of the 6th rectifier diode；
The GND interfacing ground；
The FB interface is electrically connected by thirteenth resistor with the cathode of the 6th rectifier diode, is connect by the 14th resistance
Ground；
The cathode of 6th rectifier diode is electrically connected with the driving circuit of the 12V, and passes through the 6th capacitor, the 7th capacitor
With the earth of the 8th capacitor.
4. solar street light power supply system according to claim 1, which is characterized in that the major loop of the PWM discharge circuit,
Include:
The drain electrode of 7th metal-oxide-semiconductor, the 7th metal-oxide-semiconductor is electrically connected with the load lamp cathode, and the source electrode of the 7th metal-oxide-semiconductor is logical
The 17th resistance is crossed to be electrically connected with the grid of the 7th metal-oxide-semiconductor, pass sequentially through the 15th resistance, the 16th resistance parallel connection and
The parallel connection of second resistance, 3rd resistor is electrically connected with the cathode of the battery, and the grid electricity of the 7th metal-oxide-semiconductor is put with PWM
The driving circuit of circuit is electrically connected.
5. solar street light power supply system according to claim 4, which is characterized in that the driving electricity of the PWM discharge circuit
Road, comprising:
8th triode, the collector of the 8th triode pass through the major loop of the 18th resistance and the PWM discharge circuit
Electrical connection, the emitter of the 8th triode are electrically connected with storage battery power supply circuit, and pass through the 9th capacitor and the tenth capacitor
Earth, the base stage of the 8th triode is electrically connected by the 19th resistance with the emitter of the 8th triode；
7th diode, anode the second PWM wave of input of the 7th diode, the cathode and the 20th of the 7th diode
One end of resistance is electrically connected；
The collector of 9th triode, the 9th triode passes through the base stage of the 21st resistance and the 8th triode electricity
Connection, the base stage of the 9th triode is electrically connected with the other end of the 20th resistance, and the cathode with the 8th diode
Electrical connection, the emitter of the 9th triode is electrically connected with the anode of the 8th diode, is grounded, and passes through the 22nd
Resistance is electrically connected with the base stage of the 9th triode.
6. solar street light power supply system according to claim 5, which is characterized in that the storage battery power supply circuit with it is described
Solar power supply circuit structure is identical, and the IN interface of boost chip and the battery positive voltage in the storage battery power supply circuit
It is electrically connected, the SW interface of boost chip passes through rectifier diode and the PWM discharge circuit in the storage battery power supply circuit
Driving circuit electrical connection.
7. solar street light power supply system according to claim 1, which is characterized in that further include infrared communications set, and institute
Infrared communications set is stated to be electrically connected with the central control circuit.
8. solar street light power supply system according to claim 1, which is characterized in that the solar street light power supply system
Sheathing material is aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920002194.7U CN209282907U (en) | 2019-01-02 | 2019-01-02 | A kind of solar street light power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920002194.7U CN209282907U (en) | 2019-01-02 | 2019-01-02 | A kind of solar street light power supply system |
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| CN209282907U true CN209282907U (en) | 2019-08-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332518A (en) * | 2020-10-26 | 2021-02-05 | 成都华体慧城科技有限公司 | Environmental protection wisdom street lamp |
| CN112467855A (en) * | 2020-10-26 | 2021-03-09 | 成都华体慧城科技有限公司 | Wisdom street lamp system |
-
2019
- 2019-01-02 CN CN201920002194.7U patent/CN209282907U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332518A (en) * | 2020-10-26 | 2021-02-05 | 成都华体慧城科技有限公司 | Environmental protection wisdom street lamp |
| CN112467855A (en) * | 2020-10-26 | 2021-03-09 | 成都华体慧城科技有限公司 | Wisdom street lamp system |
| CN112332518B (en) * | 2020-10-26 | 2021-10-22 | 成都华体慧城科技有限公司 | Environmental protection wisdom street lamp |
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