CN117458691A - Solar energy efficiency improving system - Google Patents
Solar energy efficiency improving system Download PDFInfo
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- CN117458691A CN117458691A CN202210847210.9A CN202210847210A CN117458691A CN 117458691 A CN117458691 A CN 117458691A CN 202210847210 A CN202210847210 A CN 202210847210A CN 117458691 A CN117458691 A CN 117458691A
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- power
- component
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- point tracking
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- 238000010248 power generation Methods 0.000 claims abstract description 38
- 238000012544 monitoring process Methods 0.000 claims abstract description 34
- 238000004891 communication Methods 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims abstract description 19
- 230000002035 prolonged effect Effects 0.000 claims abstract description 12
- 238000004364 calculation method Methods 0.000 claims abstract description 6
- 230000002708 enhancing effect Effects 0.000 claims description 40
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
- G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
- H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention relates to a solar energy efficiency improving system, wherein the solar energy efficiency improving system is distributed with mutually connected efficiency improving devices, the efficiency improving devices are provided with capacitor boosting components which are connected with solar power generation devices, and the solar power generation devices output to a maximum power point tracking device through power output components to collect power and store the power into a storage power group. The communication monitoring component monitors and sets that the power output by the capacitor boosting component to the power output component is within a preset value, when the power exceeds the preset value, the power output time is controlled to be prolonged by the working time prolonging component and the power management calculation component, and meanwhile, the communication monitoring component informs the intelligent management chip component to connect other efficiency boosting devices to control the power output to the maximum power point tracking device.
Description
Technical Field
The invention relates to a solar energy efficiency improvement system, wherein the solar energy efficiency improvement system is distributed with interconnected efficiency improvement devices, and the efficiency improvement devices store the electric power generated by a solar power generation device into the technical field of a storage electric power set through a maximum power point tracking device.
Background
In the present solar system 10, a solar power generation device 101 is distributed, and the solar power generation device 101 is connected to a rectifying/inverting device 20, and the rectifying/inverting device 20 is connected to a storage power pack 30. The solar power generation device 101 is distributed with one to two solar panels 102, the single solar panel 102 of the solar power generation device 101 can generate about 40V of power, the power generated by the solar panel 102 can be stored into the storage power set 30 through the rectifying and inverting device 20, in addition, the power stored in the storage power set 30 is converted into alternating current and outputted from outside through the inverting function of the rectifying and inverting device 20, and the maximum processable power flow of the rectifying and inverting device 20 is about 150W to 12.5W (as shown in fig. 1).
However, the power generated by the solar power generation device 101 is rectified and stored in the storage power set 30 only by the rectifying and inverting device 20. When the power generated by the solar power generation device 101 is too low, the conversion power of the rectifying and inverting device 20 is often too low, which may even affect the failure of the rectifying and inverting device 20 to operate normally or stop swinging. When the power generated by the solar power generation device 101 is too high, the power conversion of the rectifying and inverting device 20 is overloaded, and the redundant power generated by the solar power generation device 101 is wasted and cannot be stored, and the rectifying and inverting device 20 is often damaged due to the overload, so that the problem of power conversion of the solar power system 10 is found, and the improvement is needed (as shown in fig. 1).
Disclosure of Invention
The main purpose of the invention is that: the power generated by the solar panel is stably output to the power output assembly through the capacitor boosting assembly at 5V to 40V, and is output to the maximum power point tracking device through the power output assembly at 1800W at the highest, and the maximum power point tracking device gathers the substantial benefit that the power of each performance boosting device is stored in the stored power group.
The solar energy efficiency improving system of the invention is at least connected with: a solar power generation device, a maximum power point tracking device and a stored power set. The solar energy efficiency improvement system is distributed with two to twelve interconnected efficiency improvement devices, and the efficiency improvement devices are at least provided with: the system comprises a capacitor boosting component, a communication monitoring component, an intelligent management chip component, an operating time prolonging component, a power output component and a power management calculation component. The capacitor boosting component is connected with the solar power generation device, the solar power generation device is arranged to form a solar power generation field, the solar power generation device is provided with one to two solar panels, the maximum power generated by each solar panel is about 40V, the power generated by the solar panels is stably output to the power output component through the capacitor boosting component at 5V to 40V, the maximum power is output to the maximum power point tracking device through the power output component at 1800W, and the power of each efficiency boosting device is collected by the maximum power point tracking device and stored in the storage power group. The communication monitoring component monitors and sets that the power output by the capacitor boosting component to the power output component is within a preset value, when the power exceeds the preset value, the power output time is controlled to be prolonged by the working time prolonging component and the power management calculation component, and meanwhile, the communication monitoring component informs the intelligent management chip component to connect other efficiency boosting devices to control the power output to the maximum power point tracking device.
The efficiency improving device is additionally provided with an intelligent monitoring management component and a solar panel protection inversion component, and the intelligent monitoring management component and the solar panel protection inversion component at least monitor the voltage value, the output current and the temperature condition of the solar panel.
The solar energy efficiency improving system is connected with the efficiency improving devices in series, each efficiency improving device is connected with the maximum power point tracking device through the power output component, and in addition, the stored power of the stored power group is inverted into alternating current to be externally output and supplied by the maximum power point tracking device.
The solar energy efficiency improving system is connected with the efficiency improving device in parallel, the solar energy generating device is provided with an adapter connected with the efficiency improving device, the adapter is connected with the intelligent management chip component with the efficiency improving device, and each efficiency improving device is connected with the maximum power point tracking device through the power output component.
The invention can also realize the following benefits: 1. the maximum power point tracking device gathers the substantial benefits of storing the power of each performance enhancing device into the stored power set.
2. The communication monitoring component monitors and sets that the power output by the capacitor boosting component to the power output component is within a preset value, when the power exceeds the preset value, the power output time is controlled to be prolonged by the working time prolonging component and the power management calculation component, and meanwhile, the communication monitoring component informs the intelligent monitoring management component to connect other performance lifting devices to control the substantial benefit of the power output to the maximum power point tracking device.
3. The intelligent monitoring management component and the solar panel protection inversion component monitor the substantial benefits of the voltage value, the output current and the temperature condition of the solar power generation device.
4. The solar energy efficiency improving system is connected with the efficiency improving device in series, and in addition, the electric power stored by the stored electric power group is inverted into the substantial benefit of alternating current to external output power supply by the maximum power point tracking device.
5. The solar energy efficiency improving system is connected with the efficiency improving device in parallel, the solar energy generating device is provided with an adapter connected with the efficiency improving device, the adapter is connected with the intelligent management chip component of the efficiency improving device, and each efficiency improving device is connected with the substantial benefit of the maximum power point tracking device through the power output component.
Drawings
Fig. 1 is a schematic diagram of a conventional solar energy system.
Fig. 2 is a schematic top view of the solar energy efficiency improvement system of the present invention.
FIG. 3 is a schematic diagram of an intelligent monitoring management component of the performance enhancing apparatus according to the present invention.
FIG. 4 is a schematic diagram of a serial performance enhancing apparatus of the solar performance enhancing system of the present invention.
FIG. 5 is a schematic diagram of a parallel performance enhancing apparatus of the solar performance enhancing system according to the present invention.
In the figure:
the prior art comprises the following steps: 10: a solar energy system; 101: a solar power generation device; 102: a solar panel; 20: a rectifying inverter; 30: storing the power pack;
the invention comprises the following steps: 1: a solar energy efficiency improvement system; 11: an efficiency enhancing device; 111: an intelligent monitoring management component; 112: the solar panel protects the inversion assembly; 12: a capacitor boosting component; 13: a communication monitoring component; 14: an intelligent management chip assembly; 15: an extended working time assembly; 16: a power output assembly; 17: a power management algorithm component; 18: an intelligent management chip assembly; 2: a solar power generation device; 2A: a solar power generation field; 21: a solar panel; 3: maximum power point tracking means; 4: storing the power pack; 5: an adapter.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the invention, so that those skilled in the art may better understand the invention and practice it.
The invention relates to a solar energy efficiency improving system, wherein the solar energy efficiency improving system 1 is at least connected with: a solar power generation device 2, a maximum power point tracking device 3 and a stored power set 4. The solar energy efficiency improvement system 1 is distributed with two to twelve interconnected efficiency improvement devices 11, the efficiency improvement devices 11 are at least configured with: a capacitor boost component 12, a communication monitoring component 13, an intelligent management chip component 14, an extended operating time component 15, a power output component 16 and a power management algorithm component 17. The capacitor boosting component 12 is connected with the solar power generation device 2, the solar power generation device 2 is arranged to form a solar power generation field 2A, the solar power generation device 2 is provided with one to two solar panels 21, the maximum power generated by each solar panel 21 is about 40V, the power generated by the solar panel 21 is stably output to the power output component 16 through the capacitor boosting component 12 at 5V to 40V, the maximum power is output to the maximum power point tracking device 3 at 1800W by the power output component 16, and the power collected by each efficiency enhancing device 11 by the maximum power point tracking device 3 is stored in the storage power group 4. The communication monitoring component 13 monitors and sets that the power output from the capacitor boosting component 12 to the power output component 16 is within a preset value, when the power exceeds the preset value, the power output time is controlled to be prolonged by the prolonged working time component 15 and the power management calculating component 17, and meanwhile, the communication monitoring component 13 informs the intelligent management chip component 14 to connect with other performance boosting devices 11 to control the power output to the maximum power point tracking device 3 (as shown in fig. 2).
Accordingly, the solar energy efficiency enhancing system 1 is mainly used for stabilizing and enhancing the power conversion rate generated by the solar panel 21, and is not limited by the combination mode of the solar panel 21 and by the brand specification of the maximum power point tracking device 3. Furthermore, the power output unit 16 of the performance enhancing device 11 outputs 1800W to the maximum power point tracking device 3, and the maximum power generated by the four solar panels 21 is approximately 1700W, so that each performance enhancing device 11 can safely process the power generated by the four solar panels 21. And the power generated by the solar panel 21 is output to the maximum power point tracking device 3 through the solar energy efficiency enhancing system 1, and the maximum power point tracking device 3 gathers the power of each efficiency enhancing device 11 and stores the power into the stored power set 4 (as shown in fig. 2).
The communication monitoring component 13 monitors and sets the power output from the capacitor boosting component 12 to the power output component 16 to be controlled within a preset value, so as to prevent the power from impacting the built-in equipment of the performance enhancing device 11 and the maximum power point tracking device 3, and when the power exceeds the preset value, the power output time is controlled to be prolonged by the prolonged working time component 15 and the power management calculating component 17, and meanwhile, the communication monitoring component 13 informs the intelligent management chip component 14 to connect other performance enhancing devices 11 together to control the power to be amplified and output to the maximum power point tracking device 3, and the maximum power point tracking device 3 amplifies the power and stores the amplified power into the stored power set 4 (as shown in fig. 2).
The efficiency improving device 11 of the present invention is additionally provided with an intelligent monitoring management component 111 and a solar panel protection inversion component 112, wherein the intelligent monitoring management component 111 and the solar panel protection inversion component 112 monitor at least the voltage value, the output current and the temperature condition of the solar panel 21, so that the use condition of the solar power generation device 2 is effectively and remotely protected and monitored, and the solar power generation device 2 can be timely maintained and ensured to generate power. The intelligent monitoring and managing component 111 and the solar panel protection inverter component 112 can monitor that the solar panel 21 stops operating to emit power when the output current is overloaded, and then the solar panel 21 is started to generate power, so as to prevent the solar panel 21 from being damaged due to the overload of the generated current. In addition, the intelligent monitoring and managing component 111 and the solar panel protection inverter component 112 can monitor that the solar panel 21 stops generating electricity until cooling when the temperature is too high, and start the solar panel 21 to generate electricity after the solar panel 21 is still in compliance with the safe operation condition, thereby preventing the solar panel 21 from being damaged due to the too high temperature of the generated electricity (as shown in fig. 3).
The solar energy efficiency enhancing system 1 of the present invention is further connected with the efficiency enhancing devices 11 in series, each efficiency enhancing device 11 is connected with the maximum power point tracking device 3 by the power output component 16, when the power exceeds the preset value, the power output time is controlled to be prolonged by the operation time prolonging component 15 and the power management calculating component 17, and meanwhile, the communication monitoring component 13 informs the intelligent management chip component 14 to connect with other efficiency enhancing devices 11 to control the power output to the maximum power point tracking device 3. In addition, the stored power of the stored power set 4 is further inverted by the maximum power point tracking device 3 to be ac power (as shown in fig. 4).
The solar energy efficiency enhancing system 1 of the present invention is further connected with the efficiency enhancing device 11, the solar energy generating device 2 is additionally provided with an adapter 5 connected with the efficiency enhancing device 11, the adapter 5 is further connected with the intelligent management chip component 14 connected with the efficiency enhancing device 11, each efficiency enhancing device 11 is further connected with the maximum power point tracking device 3 through the power output component 16, when the power exceeds the preset value, the power output time is controlled to be prolonged by the prolonged working time component 15 and the power management calculating component 17, and meanwhile, the communication monitoring component 13 notifies the intelligent management chip component 14 to connect with other efficiency enhancing devices 11 through the adapter 5 to control the power output to the maximum power point tracking device 3 (as shown in fig. 5).
From the above description, it can be seen that: the solar energy efficiency enhancing system 1 is mainly used for stabilizing and enhancing the power conversion rate generated by the solar panel 21, and is not limited by the combination mode of the solar panel 21 and the maximum power point tracking device 3. The power generated by the solar panel 21 is output to the maximum power point tracking device 3 through the solar energy efficiency enhancing system 1, and the maximum power point tracking device 3 gathers the first excellent characteristics of storing the power of each efficiency enhancing device 11 into the stored power set 4.
Another excellent feature of the present invention is that: the communication monitoring component 13 monitors and sets the power output from the capacitor boosting component 12 to the power output component 16 to be controlled within a preset value, so as to prevent the power from impacting the built-in equipment of the performance enhancing device 11 and the maximum power point tracking device 3, and when the power exceeds the preset value, the power output time can be controlled to be prolonged, and at the same time, other performance enhancing devices 11 are informed to control the power to be amplified and output to the maximum power point tracking device 3, and the power benefit stored in the stored power group 4 is amplified by the maximum power point tracking device 3, so that the special benefit of the present invention is obtained.
The invention is also characterized in that: the efficiency improving device 11 is provided with the intelligent monitoring management component 111 and the solar panel protection inversion component 112, and the intelligent monitoring management component 111 and the solar panel protection inversion component 112 monitor the voltage value, the output current and the temperature condition of the solar panel 21, so that the use condition of the solar power generation device 2 is effectively and remotely protected and monitored, the solar power generation device 2 can be timely maintained and ensured to generate power of the solar panel 21, and the solar panel 21 can be prevented from being damaged due to overload current of power generation, and the characteristic benefit of preventing the solar panel 21 from being damaged due to overhigh temperature of power generation can be prevented.
The invention has the other excellent characteristics that: the solar energy efficiency enhancing system 1 is connected with the efficiency enhancing device 11 in series, and when the power exceeds a preset value, the intelligent management chip component 14 is connected with other efficiency enhancing devices 11 to control the power output to the special benefit of the maximum power point tracking device 3.
The invention has the following excellent characteristics: the solar power generation device 2 is provided with the adapter 5 connected with the performance enhancing device 11, and when the power exceeds a preset value, the communication monitoring component 13 informs the intelligent management chip component 14 to control the power output to the maximum power point tracking device 3 together by connecting other performance enhancing devices 11 through the adapter 5.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (4)
1. A solar energy efficiency enhancement system, wherein the solar energy efficiency enhancement system is connected with at least: a solar power generation device, a maximum power point tracking device and a stored power set; the solar energy efficiency improvement system is distributed with two to twelve interconnected efficiency improvement devices, and the efficiency improvement devices are at least provided with: the system comprises a capacitor boosting component, a communication monitoring component, an intelligent management chip component, an operating time prolonging component, a power output component and a power management calculation component; the capacitor boosting component is connected with the solar power generation device, the solar power generation device is arranged to form a solar power generation field, the solar power generation device is provided with one to two solar panels, the maximum power generated by each solar panel is 40V, the power generated by the solar panels is stably output to the power output component through the capacitor boosting component at 5V to 40V, the maximum power is output to the maximum power point tracking device through the power output component at 1800W, and the power of each efficiency boosting device is collected by the maximum power point tracking device and stored in the storage power group; the communication monitoring component can monitor and set the power output by the capacitor boosting component to the power output component within a preset value, when the power exceeds the preset value, the power output time is controlled to be prolonged by the working time prolonging component and the power management calculation component, and meanwhile, the communication monitoring component informs the intelligent management chip component to connect with other efficiency boosting devices to control the power output to the maximum power point tracking device.
2. The solar energy efficiency enhancement system according to claim 1, wherein the efficiency enhancement device is further provided with an intelligent monitoring management component and a solar panel protection inverter component, wherein the intelligent monitoring management component and the solar panel protection inverter component are further configured to monitor at least voltage values, output currents and temperature conditions of the solar panel.
3. The system of claim 1, wherein the solar energy efficiency enhancing system is further connected in series with the efficiency enhancing devices, each of the efficiency enhancing devices is further connected to the maximum power point tracking device by the power output component, and the power stored in the stored power set is further inverted from the maximum power point tracking device to an ac power for external output.
4. The solar energy efficiency enhancement system according to claim 1, wherein the solar energy efficiency enhancement system is further connected with the efficiency enhancement device in parallel, the solar power generation device is additionally provided with an adapter connected with the efficiency enhancement device, the adapter is also connected with the intelligent management chip component of the efficiency enhancement device, and each efficiency enhancement device is further connected with the maximum power point tracking device through the power output component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210847210.9A CN117458691A (en) | 2022-07-19 | 2022-07-19 | Solar energy efficiency improving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210847210.9A CN117458691A (en) | 2022-07-19 | 2022-07-19 | Solar energy efficiency improving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117458691A true CN117458691A (en) | 2024-01-26 |
Family
ID=89578654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210847210.9A Pending CN117458691A (en) | 2022-07-19 | 2022-07-19 | Solar energy efficiency improving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117458691A (en) |
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2022
- 2022-07-19 CN CN202210847210.9A patent/CN117458691A/en active Pending
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