CN205487032U - Real apparatus of instructing of new forms of energy teaching - Google Patents
Real apparatus of instructing of new forms of energy teaching Download PDFInfo
- Publication number
- CN205487032U CN205487032U CN201521085932.7U CN201521085932U CN205487032U CN 205487032 U CN205487032 U CN 205487032U CN 201521085932 U CN201521085932 U CN 201521085932U CN 205487032 U CN205487032 U CN 205487032U
- Authority
- CN
- China
- Prior art keywords
- energy
- circuit board
- light source
- new forms
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012549 training Methods 0.000 claims description 32
- 230000001105 regulatory effect Effects 0.000 claims description 22
- 230000000087 stabilizing effect Effects 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 abstract description 9
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000001228 spectrum Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract 2
- 238000013461 design Methods 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 11
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Landscapes
- Instructional Devices (AREA)
Abstract
The utility model discloses a real apparatus of instructing of new forms of energy teaching, include: battery, solar cell panel, simulation light source and circuit board, the simulation light source is located solar cell panel circuit board top, if solar cell panel includes dry battery spare, be connected for dismantling between battery pack and the solar cell panel. In this way, the utility model provides a real apparatus of instructing of new forms of energy teaching, the sunlight is simulated to the lamp that adopts luminous (spectrum) to be close the sunlight, make the real standard project to go on at any time, need not receive weather change's restriction, stress engineering practicability, adopt the panel, the intelligent control ware, the battery, require all with the scene application in the same, it uses to make the student understand the on -the -spot of solar photovoltaic electricity generation deeply, each part is the complete independence, the student can be based on the own understanding that the electricity generation was used to solar photovoltaic and touches it by oneself to connect at the real in -process of instructing.
Description
Technical field
This utility model relates to a kind of actual training device, particularly relates to new forms of energy teaching training device device.
Background technology
What current era was particular about is low-carbon (LC), accomplish this step, it is accomplished by developing the new energy, the new reproducible energy is fewer for the destruction of current ecological environment, also energy consumption structure can be optimized, and the foundation of nascent, it is also possible to pull domestic demand, there is provided more job opportunity, so this is the strategic selection promoting social sustainable development.The particularly financial crisis in the range of our times, the development of New Energy Industry will be conducive to country's reply financial crisis, change economic depressed situation, and prospect is broad.
Existing in a kind of fixed photovoltaic array scheme, the floor space of existing solar photovoltaic power plant array is relatively big, and is inconvenient to move.Just because of the existence of this design, cause photovoltaic array cannot apply to flexibly, among teaching, have that solar energy utilization rate is relatively low, industry development is slow.
Another situation is, the electrical equipment of existing new forms of energy is the heaviest, and device therefor is all that encapsulation is dead, just because have employed the program, causes existing new forms of energy equipment the ultimate principle of each equipment to be displayed intuitively, it is impossible to be directly used in teaching.
Existing new forms of energy product uses integrated seal formula circuit, constructs less, and data transmission and ultimate principle are opaque, it is impossible to applying to imparts knowledge to students has directly influenced study and the secondary development of user.
Existing solar photovoltaic power plant takes up an area larger, and equipment heaviness can not apply to teaching flexibly, is difficult to carry out experimental real-training project.
Utility model content
This utility model uses luminous (spectrum) to carry out simulated solar irradiation close to the lamp of sunlight mainly solving the technical problems that how to provide a kind of, practical training project is carried out at any time, need not be limited by Changes in weather, emphasize engineering practicability, use cell panel, intelligent controller, accumulator, require all as on-the-spot application, make the on-the-spot application of student's profound understanding solar energy power generating, various piece is completely self-contained, student during real training can according to oneself to solar energy power generating application understanding do it yourself connect new forms of energy teaching training device.
For solving above-mentioned technical problem, the technical scheme that this utility model uses is: provide a kind of new forms of energy teaching training device device, including: accumulator, solar panel, analog light source and circuit board, described analog light source is positioned at solar panel circuit board, if described solar panel includes dry battery assembly, for removably connecting between described battery component and solar panel.
Combining inverter, analog light source actuator and the first power meter/electric energy meter is included on described circuit board, described analog light source actuator includes the actuator for regulating analog light source, it is electrically connected with between described combining inverter and accumulator, the first power meter/electric energy meter, for from accumulator power taking and be reverse into 220V alternating current, the first power meter/electric energy meter is used for detecting generated energy.
In a preferred embodiment, described circuit board also includes off-network inverter, D.C. voltmeter, the second power meter and load, described D.C. voltmeter detection battery tension, after being connected between described off-network inverter and the second power meter, is connected directly to load.
In a preferred embodiment, voltage stabilizing regulated power supply, potentiometer and digital display voltmeter is also included on described circuit board, described voltage stabilizing regulated power supply is 2 groups, controls to be connected, be electrically connected with between described digital display voltmeter and voltage stabilizing regulated power supply between described potentiometer with voltage stabilizing regulated power supply.
In a preferred embodiment, described voltage stabilizing regulated power supply is the input of alternating current power supply 220v, DC source 0-28v output.
The beneficial effects of the utility model are: use luminous (spectrum) to carry out simulated solar irradiation close to the lamp of sunlight, practical training project is carried out at any time, need not be limited by Changes in weather, emphasize engineering practicability, use cell panel, intelligent controller, accumulator, requirement all as on-the-spot application, make the on-the-spot application of student's profound understanding solar energy power generating.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, in describing embodiment below, the required accompanying drawing used is briefly described, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the combining inverter attachment structure schematic diagram of this utility model new forms of energy teaching training device device one specific embodiment；
Fig. 2 be this utility model new forms of energy teaching training device device one specific embodiment from inverter attachment structure schematic diagram；
Fig. 3 is the voltage stabilizing regulated power supply attachment structure schematic diagram of this utility model new forms of energy teaching training device device one specific embodiment.
Detailed description of the invention
Technical scheme in this utility model embodiment will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present utility model rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1-3, a kind of new forms of energy teaching training device device is provided in a specific embodiment of the present utility model, described new forms of energy teaching training device device includes: accumulator, solar panel, analog light source and circuit board, described analog light source is positioned at solar panel circuit board, if described solar panel includes dry battery assembly, for removably connecting between described battery component and solar panel.
Combining inverter, analog light source actuator and the first power meter/electric energy meter is included on described circuit board, described analog light source actuator includes the actuator for regulating analog light source, it is electrically connected with between described combining inverter and accumulator, the first power meter/electric energy meter, for from accumulator power taking and be reverse into 220V alternating current, the first power meter/electric energy meter is used for detecting generated energy.
Also include off-network inverter, D.C. voltmeter, the second power meter and load, described D.C. voltmeter detection battery tension on described circuit board, after being connected between described off-network inverter and the second power meter, be connected directly to load.
Also include on described circuit board that voltage stabilizing regulated power supply, potentiometer and digital display voltmeter, described voltage stabilizing regulated power supply are 2 groups, control between described potentiometer with voltage stabilizing regulated power supply to be connected, be electrically connected with between described digital display voltmeter and voltage stabilizing regulated power supply.
Described voltage stabilizing regulated power supply is the input of alternating current power supply 220v, DC source 0-28v output.
In FIG, the luminosity of analog light source is regulated by the potentiometer of analog light source actuator.The C-V characteristic under different illumination can be completed；Combining inverter is reverse into 220V alternating current from accumulator power taking and uses electric energy meter/power meter detection generated energy to civil power.
In fig. 2, off-network inverter, from accumulator power taking, uses D.C. voltmeter monitoring battery tension.Off-network inverter directly connects AC load after being directly connected to power meter.Off-network is to need not and arrive civil power use.Inverter directly exports the alternating current of 220V50Hz.
In figure 3, being furnished with 2 groups of voltage stabilizing regulated power supply 0-28V adjustable, use 220V AC-powered, regulated power supply uses potentiometer to be adjusted, band digital display voltmeter display voltage.
In a specific embodiment, the device of a kind of new forms of energy teaching equipment that this utility model provides can complete the multinomial experiments of electricity class such as solar electrical energy generation, solar electrical energy generation principle, Experiment of Electronic Technology.Same experiment has multiple layout, be effectively improved manipulative ability, allow student have one complete, practical, close to real experimentation, learn and operation involved by grasping wherein, strengthen student's understanding to correlation theories knowledge, train and improve students ' actual situation manipulative ability；On this basis, by the innovative experiment that design is relevant, preliminary training student is pinpointed the problems, problem analysis, problem-solving ability；Additionally, the scientific research for teacher provides support platform.
New forms of energy indoor real training examination platform: the links of solar energy power generating is become can assemble dismountable module in a modular fashion, and utilize different assembly modules to realize simple solar electrical energy generation real training；The installation training of solar energy system；The debugging of each equipment in solar power system, detection real training；The off-network of solar electrical energy generation, grid-connected system real training；The various teaching contents such as solar energy system detection, system debug real training.
Experimental facilities frame for movement, laboratory table central authorities are furnished with general-purpose circuit board, and circuit board is molded, and surface is furnished with circuit extension jack, arbitrarily interpolation can become experimental circuit thereon, keep in repair easy accessibility.Components and parts are placed in the cabinet of laboratory table following left and right, substantially increase management level, planningization degree, significantly reduce the work of teacher's Preparatory work of experiment.
Laboratory table and equipment thereof have more perfect safety precautions, low pressure alarming, and low pressure turns off, and overvoltage turns off, and overload turns off, overtemperature protection, cross thermal output and are automatically switched off.
Solar energy power generating experiment training system device is respectively photovoltaic electroplax, controller for solar module, solar inverter module, instrument display part four part composition；The practice teaching table that each control system integration is integrated in photovoltaic generation；Each system is attached by connecting cable, is formed and a set of completes photo-voltaic power generation station, synchronizes grid-connected, the experiment of off-network power supply and teaching demonstration.Help student to understand solar grid-connected, the principle of off-network electricity generation system, thus play the effect of study practical implementation technical ability.
Experimental real-training platform uses 40*40 aluminium alloy design (long 1280mm), and total uses aluminium alloy to be the Model Design that main net orifice plate (2.0 thick), aluminium sheet (character cut in bas-relief rotten plate technique, word is with colour-fast) combine with sheet metal box body.
Described controller for solar uses single-chip microcomputer and special-purpose software, it is achieved Based Intelligent Control, automatically identifies 24V system.Use tandem PWM charging control mode, make the loss of voltage more former diode charging mode of charge circuit reduce half, charge efficiency more non-PWM height 3-6%;Crossing the lifting charging putting recovery, the most directly fill, floating charge automatic control mode is conducive to improving the life of storage battery.Multi-protective function, including reverse connection of accumulator, the protection of accumulator over voltage, solar module short-circuit protection, has the output overcurrent defencive function of recovery automatically, output short circuit protection function.
There is abundant mode of operation, as light-operated, light-operated+time delay, general controls isotype.Having direct current output or 1Hz stroboscopic exports 2 kinds of outputs and selects, stroboscopic output is particularly well-suited to LED Traffic alarm light etc..At stroboscopic output mode, load can use inductive load.Floating charging temperature compensation function, employ digital LED show and arrange, operating in a key can complete all settings, convenient directly perceived, control panel has 5 detection ports (direct current 2 mouths of output amount to 6 for electroplax 2 mouths of input, 2 mouths of accumulator), the charging of test controller respectively, the DC voltage change under discharge condition and DC current change.
In one embodiment, each parts provided have following characteristics, accumulator (12V7AH): generally lead-acid battery, have a characteristic that 1) self-discharge rate is low；2) service life is long；3) deep discharge ability is strong；4) charge efficiency is high；5) operating temperature range width.
Off-network inverter and sinewave inverter: 1) pure sine wave output (distortion rate < 4%)；2) the completely isolated design of input and output；3) can fast parallel start-up capacitance, inductive load；4) tri-colour LED shows, input voltage, output voltage；5) load level and failure situations；6) load controls fan coolling；7) overvoltage/under-voltage/short circuit/overload/overtemperature prote；Control panel arranges Wiring port at 13 (direct current 2 mouths of input, exchange 2 mouths of output, 2 mouths of input direct-current electric current, 5 mouths of pwm control signal, inversion filtering front signal 2), it is used for testing the technical specification of inversion system, including: DC voltage, the change of DC current；DC changes the display (using oscillograph detection) etc. of the change curve of AC reversals.
Load: 1) DC load includes: LED, blower fan etc.；2) AC load includes: electricity-saving lamp and alternating current generator etc..
Combining inverter: 1) combining inverter has the structure of DC-DC and DC-AC two-stage energy conversion.2) operating point of DC-DC transform part adjustment photovoltaic array makes it follow the tracks of maximum power point.3) DC-AC inversion link mainly makes output electric current and line voltage same phase, obtains unity power factor simultaneously.4) control panel arranges many places Wiring port (direct current 2 mouths of input, exchange 2 mouths of output, 2 mouths of input direct-current electric current, 2 mouths of pwm control signal, 2 mouths of network wave test lead), it is used for testing the technical specification of inversion system, including: DC voltage, the change of DC current；The comparison of the display of the change curve of reversals, parallel network reverse waveform and network wave.
Measuring instrument (panel type exchange instrument 1 (voltage x current power can be shown), DC voltage instrument 1, DC ammeter 1, use SOC design, 6 Digital sum show, voltage maximum display 0.00000-499.999V, electric current shows 0.00000-4.99999A, internal point 3 grades of ranges automatically, can with manual switching range also can automatic range switching, there is bus communication function, can free networking, use application specific standard enclosure designs): complete the reading of data during experiment, the voltage and current of solar battery group can be monitored；The voltage and current of combining inverter output；The voltage and current of off-network inverter output.
Other: 1) device tool experiment time stand-by power supply (1 road 0-28V/1A direct current adjustable stabilized voltage supply)；2) voltage module is set, it is ensured that the safety of experimentation；3) guide book of experiment is provided；4) experimental real-training platform uses the design of 40*40 aluminium alloy, and total uses aluminium alloy to be the Model Design that main net orifice plate, aluminium sheet combine with sheet metal box body.
Therefore, this utility model has the advantage that
(1) luminous (spectrum) is used to carry out simulated solar irradiation close to the lamp of sunlight, practical training project is carried out at any time, need not be limited by Changes in weather, emphasize engineering practicability, use cell panel, intelligent controller, accumulator, require all as on-the-spot application, make the on-the-spot application of student's profound understanding solar energy power generating, various piece is completely self-contained, the understanding of solar energy power generating application can be done it yourself to connect according to oneself during real training by student, use standard industry cell panel, it is placed in indoor and outdoor, offer multiple analog application real training: solar street light, solar alarming lamp, inverter also/off-network experiment etc., band hanging cupboard puts real training equipment for anti-；
(2) solar photovoltaic cell panel uses the efficient photovoltaic module of 10W, by photovoltaic module array miniaturization bigger for floor space, can be directly mounted on practical traning platform, its area occupied about 0.1；
(3) use modularized design, module individually can be debugged, revise and store, volume the least this installation being easy to user and restructuring；Interchangeability, the structure at module interface position, size and standard parameter, easily realize the exchange of intermodule, it is achieved the optimum use of resource；Improve the versatility of equipment, the module being advantageously implemented between horizontal series, vertical series of products general, it is achieved the module across between series of products general simultaneously；
(4) principle transparence, control hierarchy, combine by the interlock condition of each several part and supplemented and revise, the complete line controlling to require can be met, make signal through suitable combination and conversion by main, obtain the working signal required for executive component under certain condition；Components and parts can be increased and decreased at any time and change the compound mode of contact, to meet the working condition of system and to control requirement, owing to this method for designing is simple, easily grasped by abecedarian, for the electric personnel with certain working experience, also can complete design task quickly, can be generally used in electrical design；
(5) device miniaturization, principle is intuitively changed, and mounts and dismounts extremely convenient.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (4)
1. a new forms of energy teaching training device device, it is characterized in that, including: accumulator, solar panel, analog light source and circuit board, described analog light source is positioned at solar panel circuit board, if described solar panel includes dry battery assembly, for removably connecting between described battery component and solar panel；
Combining inverter, analog light source actuator and the first power meter/electric energy meter is included on described circuit board, described analog light source actuator includes the actuator for regulating analog light source, it is electrically connected with between described combining inverter and accumulator, the first power meter/electric energy meter, for from accumulator power taking and be reverse into 220V alternating current, the first power meter/electric energy meter is used for detecting generated energy.
New forms of energy teaching training device device the most according to claim 1, it is characterized in that, off-network inverter, D.C. voltmeter, the second power meter and load is also included on described circuit board, described D.C. voltmeter detection battery tension, is connected directly to load between described off-network inverter and the second power meter after being connected.
New forms of energy teaching training device device the most according to claim 1, it is characterized in that, voltage stabilizing regulated power supply, potentiometer and digital display voltmeter is also included on described circuit board, described voltage stabilizing regulated power supply is 2 groups, control between described potentiometer with voltage stabilizing regulated power supply to be connected, be electrically connected with between described digital display voltmeter and voltage stabilizing regulated power supply.
New forms of energy teaching training device device the most according to claim 3, it is characterised in that described voltage stabilizing regulated power supply is the input of alternating current power supply 220v, DC source 0-28v output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521085932.7U CN205487032U (en) | 2015-12-24 | 2015-12-24 | Real apparatus of instructing of new forms of energy teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521085932.7U CN205487032U (en) | 2015-12-24 | 2015-12-24 | Real apparatus of instructing of new forms of energy teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205487032U true CN205487032U (en) | 2016-08-17 |
Family
ID=56661352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521085932.7U Expired - Fee Related CN205487032U (en) | 2015-12-24 | 2015-12-24 | Real apparatus of instructing of new forms of energy teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205487032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374263A (en) * | 2015-12-24 | 2016-03-02 | 上海鑫叠机电科技有限公司 | New energy teaching practical-training equipment device |
| CN107945608A (en) * | 2017-12-21 | 2018-04-20 | 国网浙江省电力公司培训中心 | Almightiness type power supply station Training in Comprehensive Skills device |
-
2015
- 2015-12-24 CN CN201521085932.7U patent/CN205487032U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374263A (en) * | 2015-12-24 | 2016-03-02 | 上海鑫叠机电科技有限公司 | New energy teaching practical-training equipment device |
| CN107945608A (en) * | 2017-12-21 | 2018-04-20 | 国网浙江省电力公司培训中心 | Almightiness type power supply station Training in Comprehensive Skills device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102684220B (en) | Marine photovoltaic power generation grid-connected experimental platform | |
| CN108550305A (en) | Distributed new O＆M simulation training system | |
| CN102157099B (en) | Photovoltaic power generation teaching training system | |
| CN105207340B (en) | A kind of wind-solar hybrid new energy application experiment platform | |
| CN205487032U (en) | Real apparatus of instructing of new forms of energy teaching | |
| CN201859578U (en) | Experiment training device for solar photovoltaic power generation system | |
| CN104091502B (en) | Low-tension centralized meter reading and installation training device based on carrier technology | |
| CN204789831U (en) | Little electric wire netting simulation experiment platform | |
| CN202549131U (en) | Teaching training table for wind and light complementation power supply system | |
| CN105374263A (en) | New energy teaching practical-training equipment device | |
| CN106251755B (en) | Portable photovoltaic power plant simulator | |
| CN108988382A (en) | The grid-connected monitoring and evaluation method and system of photo-voltaic power generation station | |
| CN108648580A (en) | Distributed photovoltaic power generation O＆M simulation training system | |
| CN202487044U (en) | Practical training table for wind energy power generating system teaching | |
| CN204557896U (en) | A kind of solar energy power generating teaching training apparatus | |
| CN203480745U (en) | Commercial power complementary type photovoltaic generation practical training device | |
| CN215265242U (en) | Photovoltaic power generation simulation intelligent training system | |
| CN210295573U (en) | Industrial-grade modularized wind-solar hybrid power generation training platform | |
| CN201773517U (en) | Solar power supply demonstration device used for teaching | |
| CN207038003U (en) | A kind of multi-functional wind light mutual complementing power generation teaching experiment platform | |
| CN204649850U (en) | Photovoltaic DC-to-AC converter emc testing system | |
| CN202838768U (en) | Alternating current and direct current hybrid photovoltaic system experiment device | |
| CN103487702A (en) | Small-power movable micro-grid connection detecting system | |
| CN202033933U (en) | Photovoltaic power generation teaching training system | |
| CN201812421U (en) | Solar photovoltaic power generation comprehensive real training table |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 |