CN216851896U - Novel photovoltaic cell junction box device - Google Patents
Novel photovoltaic cell junction box device Download PDFInfo
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- CN216851896U CN216851896U CN202220248932.8U CN202220248932U CN216851896U CN 216851896 U CN216851896 U CN 216851896U CN 202220248932 U CN202220248932 U CN 202220248932U CN 216851896 U CN216851896 U CN 216851896U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a novel photovoltaic cell junction box device, which is characterized by comprising a photovoltaic cell, a junction box shell, a detection module and a bypass diode; the photovoltaic cell, the detection module and the bypass diode are all connected in parallel at the output end of the photovoltaic cell; the bypass diode is used for performing a bypass conduction function when the photovoltaic cell fails; the detection module and the bypass diode are packaged in the junction box shell; the detection module consists of a CPU module, a power supply module, a lightning protection module, a sampling module, an assembly selection module and an output module and is used for detecting whether the photovoltaic cell breaks down or not. The technology increases the performance of the photovoltaic cell junction box, saves the two three-way type MC4 wiring terminal connectors and corresponding sheath wires and other auxiliary materials which are additionally added for each photovoltaic cell, obviously reduces the material cost, the installation cost and the field construction amount of equipment, and simultaneously increases the reliability of the system.
Description
Technical Field
The invention belongs to the technical field of solar photovoltaic power generation, and particularly relates to a novel photovoltaic cell junction box device.
Background
With the urgent need of new energy application, the scale of solar photovoltaic power generation is continuously enlarged, and each link of operation, maintenance, management and the like of photovoltaic power generation urgently needs intelligent transformation and upgrading to improve efficiency and reduce cost. Therefore, the working state of each photovoltaic cell needs to be known accurately in real time. Although some monitoring methods exist at present, the cost is high. For example, the technical method disclosed in patent application No. 2020203163891 "a component-level photovoltaic power station failure detection system" is to additionally install a set of detection system on each photovoltaic cell, so that each photovoltaic cell needs to be additionally manufactured and added with two three-way type terminal connectors and corresponding auxiliary materials such as sheathed wires, and the like, thereby increasing the material cost and installation cost of the device and the field construction amount.
Disclosure of Invention
To the deficiencies of the prior art, the utility model provides a method of problem solution: a novel photovoltaic cell junction box device is characterized by comprising a photovoltaic cell, a junction box shell, a detection module and a bypass diode; the detection module and the bypass diode are connected in parallel at the output end of the photovoltaic cell; the bypass diode is used for performing a bypass conduction function when the photovoltaic cell fails; the detection module and the bypass diode are packaged in the junction box shell;
the detection module consists of a sampling module, a component selection module, a power supply module, a lightning protection module, a CPU module and an output module and is used for detecting whether the photovoltaic cell has faults or not;
the sampling module comprises a voltage sampling module, the input end of the sampling module is connected with the output end of the photovoltaic cell, and the output end of the sampling module is connected with the input end of the CPU module and is used for measuring the output signal of the photovoltaic cell;
the input end of the voltage sampling module is connected with the output end of the photovoltaic cell, and the output end of the voltage sampling module is connected with the input end of the CPU module, and is used for collecting the voltage value of the output end of the photovoltaic cell in real time and transmitting the voltage value to the CPU module;
the output end of the component selection module is connected with the input end of the CPU module and is used for identifying the sequence of the photovoltaic cells;
the input end of the power supply module is connected with the output end of the photovoltaic cell, and the output end of the power supply module is connected with the input end of the CPU module and used for supplying power to the CPU module by the photovoltaic cell;
the input end of the lightning protection module is connected with the output end of the photovoltaic cell and is used for preventing lightning stroke;
the CPU module is used for performing code conversion on the output end voltage and the sequence identification of the photovoltaic cell;
the input end of the output module is connected with the output end of the CPU module; the photovoltaic cell wireless transmission and display device is used for wirelessly transmitting and displaying the output signal and the sequence identification of the photovoltaic cell;
the output module comprises a communication module and a display module; the input ends of the communication module and the display module are connected with the output end of the CPU module; the communication module is used for wirelessly transmitting the output end voltage value and the sequence identification of the photovoltaic cell to an external receiving end, and the display module is used for directly displaying the output end voltage value and the sequence identification of the photovoltaic cell on the junction box.
2. The novel photovoltaic cell junction box device is further characterized in that the sampling module comprises a voltage sampling module and a current sampling module, and the input ends of the voltage sampling module and the current sampling module are connected with the output end of the photovoltaic cell; the system is used for acquiring the voltage value of the output end of the photovoltaic cell and the current value of a loop in real time;
the input end of the CPU module is connected with the output ends of the voltage sampling module and the current sampling module and is used for performing code conversion on the output end voltage value and the loop current value of the photovoltaic cell;
the communication module is used for wirelessly transmitting the output end voltage value, the loop current value and the sequence identification of the photovoltaic cell to an external receiving end, and the display module is used for directly displaying the output end voltage value, the loop current value and the sequence identification of the photovoltaic cell on the junction box.
3. The novel photovoltaic cell junction box device is further characterized in that the output module comprises a communication module.
Has the beneficial effects.
The invention has the advantages that the performance of the photovoltaic cell junction box is improved, the original junction box only plays a role of bypass conduction, and through the invention, the junction box can transmit the terminal voltage, the current and the sequence identification of the photovoltaic cell to an external receiving end, and the whole photovoltaic system does not need to additionally increase a voltage and current collector, thereby saving two three-way MC4 wiring terminal connectors and corresponding sheath wires and other auxiliary materials which are additionally added for each photovoltaic cell, obviously reducing the material cost, the installation cost and the field construction amount of equipment, and simultaneously increasing the reliability of the system.
Drawings
Fig. 1 is a schematic block diagram of a novel photovoltaic cell junction box device.
Fig. 2 is another schematic block diagram of a novel photovoltaic cell junction box device.
Detailed Description
Embodiment 1 is as shown in fig. 1, and comprises a photovoltaic cell, a junction box housing, a detection module and a bypass diode; the photovoltaic cell, the detection module and the bypass diode are all connected in parallel at the output end of the photovoltaic cell; the bypass diode is used for performing a bypass conduction function when the photovoltaic cell fails; the detection module and the bypass diode are packaged in the junction box shell;
the sampling module comprises a voltage sampling module; the detection module consists of a CPU module, a power supply module, a lightning protection module, a sampling module, an assembly selection module and an output module and is used for detecting whether the photovoltaic cell has faults or not; the output module comprises a communication module and a display module;
the input ends of the voltage sampling module, the power supply module and the lightning protection module are connected with the output end of the photovoltaic cell, the voltage sampling module is used for collecting the terminal voltage of the photovoltaic cell in real time, and the power supply module and the lightning protection module are used for supplying power to the detection module and preventing lightning stroke; the output ends of the voltage sampling module and the power supply module are connected with the input end of the CPU module; the output end of the component selection module is connected with the input end of the CPU module and is used for identifying the sequence of the photovoltaic cells; the CPU module is used for performing code conversion on the terminal voltage and the sequence identification of the photovoltaic cell;
the output end of the CPU module is connected with the input ends of the communication module and the display module, and the communication module and the display module are used for transmitting the voltage parameters and the sequence identification of the photovoltaic cell to an external receiving end;
the input end of the output module is connected with the output end of the CPU module; the photovoltaic cell wireless transmission and display device is used for wirelessly transmitting and displaying the output signal and the sequence identification of the photovoltaic cell;
the output module comprises a communication module and a display module; the input ends of the communication module and the display module are connected with the output end of the CPU module; the communication module is used for wirelessly transmitting the output end voltage value and the sequence identification of the photovoltaic cell to an external receiving end, and the display module is used for directly displaying the output end voltage value and the sequence identification of the photovoltaic cell on the junction box.
Embodiment 2 as shown in fig. 2, the novel photovoltaic cell junction box device is characterized by comprising a photovoltaic cell, a junction box housing, a detection module and a bypass diode; the photovoltaic cell, the detection module and the bypass diode are all connected in parallel at the output end of the photovoltaic cell; the bypass diode is used for playing a bypass conduction role when the photovoltaic cell has a fault; the detection module and the bypass diode are packaged in the junction box shell;
the sampling module comprises a voltage sampling module and a current sampling module; the detection module consists of a CPU module, a power supply module, a lightning protection module, a sampling module, an assembly selection module and an output module and is used for detecting whether the photovoltaic cell has faults or not; the output module comprises a communication module and a display module;
the input ends of the voltage sampling module, the current sampling module, the power supply module and the lightning protection module are connected with the output end of the photovoltaic cell, the voltage sampling module is used for collecting terminal voltage and output current parameters of the photovoltaic cell in real time, and the power supply module and the lightning protection module are used for supplying power to the detection module and preventing lightning stroke; the output ends of the voltage sampling module, the current sampling module and the power supply module are connected with the input end of the CPU module; the output end of the component selection module is connected with the input end of the CPU module and is used for identifying the sequence of the photovoltaic cells; the CPU module is used for performing code conversion on the terminal voltage, the current and the sequence identification of the photovoltaic cell;
the output end of the CPU module is connected with the input ends of the communication module and the display module, and the communication module and the display module are used for transmitting the voltage value, the current value and the sequence identification of the photovoltaic cell to an external receiving end.
The utility model discloses still can be used to other forms's photovoltaic power generation occasions.
Claims (3)
1. A novel photovoltaic cell junction box device is characterized by comprising a photovoltaic assembly, a junction box shell, a detection module and a bypass diode; the detection module and the bypass diode are connected in parallel at the output end of the photovoltaic module; the bypass diode is used for performing a bypass conduction function when the photovoltaic module fails; the detection module and the bypass diode are packaged in the junction box shell;
the detection module consists of a sampling module, a component selection module, a power supply module, a lightning protection module, a CPU module and an output module and is used for detecting whether the photovoltaic component has faults or not;
the sampling module comprises a voltage sampling module, the input end of the sampling module is connected with the output end of the photovoltaic module, and the output end of the sampling module is connected with the input end of the CPU module and is used for measuring the output signal of the photovoltaic module;
the input end of the voltage sampling module is connected with the output end of the photovoltaic module, and the output end of the voltage sampling module is connected with the input end of the CPU module, and is used for collecting the voltage value of the output end of the photovoltaic module in real time and transmitting the voltage value to the CPU module;
the output end of the component selection module is connected with the input end of the CPU module and is used for identifying the sequence of the photovoltaic components;
the input end of the power supply module is connected with the output end of the photovoltaic module, and the output end of the power supply module is connected with the input end of the CPU module and used for supplying power to the CPU module by the photovoltaic module;
the input end of the lightning protection module is connected with the output end of the photovoltaic module and used for preventing lightning stroke;
the CPU module is used for performing code conversion on the output end voltage and the sequence identification of the photovoltaic module;
the input end of the output module is connected with the output end of the CPU module; the photovoltaic module is used for wirelessly transmitting and displaying the output signal and the sequence identifier of the photovoltaic module;
the output module comprises a communication module and a display module; the input ends of the communication module and the display module are connected with the output end of the CPU module; the communication module is used for wirelessly transmitting the output end voltage value and the sequence identification of the photovoltaic module to an external receiving end, and the display module is used for directly displaying the output end voltage value and the sequence identification of the photovoltaic module on the junction box.
2. The novel photovoltaic cell junction box device as claimed in claim 1, wherein the sampling module comprises a voltage sampling module and a current sampling module, and the input ends of the voltage sampling module and the current sampling module are connected with the output end of the photovoltaic module and are used for collecting the output end voltage value and the loop current value of the photovoltaic module in real time;
the input end of the CPU module is connected with the output ends of the voltage sampling module and the current sampling module and is used for performing code conversion on the output end voltage value and the loop current value of the photovoltaic module;
the communication module is used for wirelessly transmitting the output end voltage value, the loop current value and the sequence identification of the photovoltaic module to an external receiving end, and the display module is used for directly displaying the output end voltage value, the loop current value and the sequence identification of the photovoltaic module on the junction box.
3. The novel photovoltaic cell junction box device as claimed in claim 1 or 2, wherein the output module comprises a communication module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220248932.8U CN216851896U (en) | 2022-02-07 | 2022-02-07 | Novel photovoltaic cell junction box device |
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| CN202220248932.8U CN216851896U (en) | 2022-02-07 | 2022-02-07 | Novel photovoltaic cell junction box device |
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| CN216851896U true CN216851896U (en) | 2022-06-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117991068A (en) * | 2024-04-03 | 2024-05-07 | 浙江明禾新能科技股份有限公司 | Detection device for diode of photovoltaic junction box |
| CN117991068B (en) * | 2024-04-03 | 2024-06-11 | 浙江明禾新能科技股份有限公司 | Detection device for diode of photovoltaic junction box |
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2022
- 2022-02-07 CN CN202220248932.8U patent/CN216851896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117991068A (en) * | 2024-04-03 | 2024-05-07 | 浙江明禾新能科技股份有限公司 | Detection device for diode of photovoltaic junction box |
| CN117991068B (en) * | 2024-04-03 | 2024-06-11 | 浙江明禾新能科技股份有限公司 | Detection device for diode of photovoltaic junction box |
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Effective date of registration: 20221129 Address after: No. 49, Shenbei Road, Shenbei New District, Shenyang City, Liaoning Province Patentee after: Shenyang Furun solar energy technology development Co.,Ltd. Address before: 2027-2, block a, Jinan international innovative design Industrial Park, No. 2, Wanshou Road, Shizhong District, Jinan City, Shandong Province, 250001 Patentee before: Shandong runkai Intelligent Technology Co.,Ltd. |