Solar radiation calibrator

Abstract

This application discloses a solar radiation calibrator, belonging to the field of calibrators. It mainly includes a calibrator assembly, comprising an upper solar radiation meter housing and a lower solar radiation meter housing. A screw a connects the two housings. Both the upper and lower solar radiation meter housings are made of aluminum alloy with powder coating and utilize a high-strength aluminum alloy flange, sealed and fixed by screw a. The solar radiation calibrator of this application features a compact structure and a simple, easy-to-understand operation process. On-site calibration can be quickly completed without professional personnel, significantly saving manpower and time costs. Compared to traditional factory calibration methods, this calibrator can quickly and accurately calibrate the radiation meter on-site at a solar photovoltaic power plant, avoiding long-term data loss due to transportation and waiting, and ensuring the continuity and integrity of photovoltaic power plant monitoring data.

Description

Technical Field

[0001] This application relates to the field of calibration instrument technology, specifically solar radiation calibration instruments. Background Technology

[0002] A solar radiation calibrator is a specialized device used for the precise measurement and calibration of instruments related to solar radiation. It is typically based on an internationally standardized structure and integrates radiation sensing elements, such as thermopile sensors, signal processing units, and data display and transmission modules, to achieve accurate capture of solar radiation parameters. In photovoltaic power plants, solar radiation meters are key monitoring devices, and the accuracy of their data directly affects the assessment of power generation efficiency and system optimization.

[0003] However, in the current technology, the calibration of solar radiation meters mainly relies on the traditional factory calibration method, which has significant drawbacks: First, the factory calibration cycle is long, consuming a lot of manpower and resources, and increasing maintenance costs; second, the factory calibration results in long-term gaps in the data of ground monitoring stations, which seriously affects the continuity and integrity of the data, and cannot meet the urgent needs of photovoltaic power plants for real-time and continuous radiation data, thus affecting the accurate assessment of power generation efficiency and the formulation of optimization strategies.

[0004] Therefore, it is necessary to provide a solar radiation calibrator to solve the above problems. Utility Model Content

[0005] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a solar radiation calibrator to solve the problem that the calibration of solar radiation meters in photovoltaic power plants relies on factory calibration, resulting in poor data continuity and high human and material costs.

[0006] The technical solution adopted by this application to solve its technical problem is: a solar radiation calibrator, including a calibrator assembly, the calibrator assembly including an upper solar radiation meter housing and a lower solar radiation meter housing, a screw a connecting the two parts is provided between the upper solar radiation meter housing and the lower solar radiation meter housing, the upper solar radiation meter housing and the lower solar radiation meter housing are both made of aluminum alloy powder coating, and a high-strength aluminum alloy flange is used and sealed and fixed by screw a.

[0007] Furthermore, an outer mounting base is fixedly installed on the outer casing of the upper solar radiation meter. A screw b is provided through the outer mounting base to connect with the outer casing of the upper solar radiation meter. An outer glass cover is threaded onto the outer mounting base. A sealing ring is provided between the outer casing of the upper solar radiation meter and the outer mounting base.

[0008] Furthermore, an inner fixing seat is provided on the outer shell of the upper solar radiation meter, and an outer fixing seat covers the inner fixing seat and is aligned and sealed. A screw c is installed through the inner fixing seat, and an inner glass cover is threadedly connected to the inner fixing seat. The outer glass cover and the inner glass cover are hemispherical and made of high light transmittance quartz material.

[0009] Furthermore, a mica sheet is provided on the outer shell of the upper solar radiation meter. The mica sheet is protected by a double layer of glass cover and an inner glass cover. A winding core is connected to the outer shell of the upper solar radiation meter by bolts. The mica sheet is adhered to the winding core. A thermopile sensor is provided inside the outer shell of the upper solar radiation meter. A radiation chip is fixedly installed on the outer shell of the upper solar radiation meter. The circuit in the radiation chip is connected to the winding core.

[0010] Furthermore, an aviation plug is provided on the outside of the upper solar radiation meter housing, and a threaded block is threadedly connected to the upper solar radiation meter housing. The threaded block contains a desiccant and is screwed into the upper solar radiation meter housing through the threads and then sealed with glue. A level is threadedly connected to the upper solar radiation meter housing.

[0011] Furthermore, a display and control module is fixedly installed on the outer side of the lower solar radiation meter housing. The display and control module integrates a display screen and control buttons. A power socket and a power switch are provided on the lower solar radiation meter housing.

[0012] Furthermore, several sets of connection ports are fixedly installed on the outer shell of the lower solar radiation meter. From top to bottom, the connection ports are the connection port of the radiation meter to be calibrated and the connection port of the host computer. The upper connection port is directly connected to the radiation meter to be tested through a shielded twisted pair cable, and the lower connection port supports communication with the host computer.

[0013] The beneficial effects of this application are:

[0014] The solar radiation calibrator provided in this application has a sophisticated structural design and a simple and easy-to-understand operation process. It can quickly complete on-site calibration without the need for professional personnel, which significantly saves manpower and time costs. Compared with the traditional method of returning to the factory for calibration, this calibrator can quickly and accurately calibrate the radiation meter on-site in the solar photovoltaic field, avoiding long-term data loss caused by transportation and waiting, and ensuring the continuity and integrity of photovoltaic power station monitoring data.

[0015] The solar radiation calibrator provided in this application adopts a high-reliability design to ensure long-term stable operation and reduce maintenance costs. Its portable design makes it unrestricted by installation location and can be flexibly applied to various photovoltaic power plants. It also supports cyclic use between sites, further improving equipment utilization and reducing overall calibration costs.

[0016] The solar radiation calibrator provided in this application integrates a standard radiation meter, a display screen, and a connection port into one unit, making it easy to carry and operate on-site. It uses a radiation meter that conforms to international standards as the calibration benchmark to ensure the accuracy of calibration. The display screen shows key data in real time, which is convenient for users to perform on-site calibration and monitoring. Furthermore, through the host computer connection port, the calibration data can be transmitted to the background to realize data management and analysis. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the solar radiation calibrator in this application;

[0019] Figure 2 This is a sectional view of the external fixing seat;

[0020] Figure 3 This is a schematic diagram of the outer casing of the solar radiation meter.

[0021] Figure 4 This is a schematic diagram of the internal fixation seat;

[0022] Figure 5 This is a schematic diagram of a mica sheet.

[0023] The following are the labeling elements in the figure:

[0024] 10. Calibrator assembly; 11. Upper solar radiation meter housing; 12. Lower solar radiation meter housing; 121. Display and control module; 13. Screw a; 14. Connection port; 15. Aviation plug; 16. Threaded block; 17. Level; 18. External mounting bracket; 181. Screw b; 182. Outer glass cover; 183. Sealing ring; 19. Inner mounting bracket; 191. Screw c; 192. Inner glass cover; 193. Mica sheet; 194. Winding core; 195. Radiation chip. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] like Figures 1-5 As shown, this application provides a solar radiation calibrator, including a calibrator assembly 10. The calibrator assembly 10 can be a standard radiation meter. The calibrator assembly 10 is a device used for accurately measuring and calibrating solar radiation-related instruments. The calibrator assembly 10 includes an upper solar radiation meter housing 11 and a lower solar radiation meter housing 12. A screw a13 is provided between the upper solar radiation meter housing 11 and the lower solar radiation meter housing 12 to connect the two parts. Both the upper solar radiation meter housing 11 and the lower solar radiation meter housing 12 are made of aluminum alloy powder coating. They use high-strength aluminum alloy flanges and are sealed and fixed by screw a13 to ensure good environmental protection performance. In addition, the internal cables are neatly wired through professional waterproof cable trays, which not only ensures the safety of the wiring but also facilitates maintenance.

[0028] The upper solar radiation meter housing 11 and the lower solar radiation meter housing 12 serve as calibration references and also comply with ISO9060 and WMO technical standards, ensuring the accuracy and reliability of calibration. Meanwhile, the lower solar radiation meter housing 12 adopts a modular design, and each unit is electrically interconnected through onboard connectors on the PCB board, ensuring efficient and stable transmission of data signals.

[0029] An outer mounting base 18 is fixedly installed on the outer casing 11 of the upper solar radiation meter. A screw b181 is provided through the outer mounting base 18 to connect with the outer casing 11 of the upper solar radiation meter. An outer glass cover 182 is threadedly connected to the outer mounting base 18. A sealing ring 183 is provided between the outer casing 11 of the upper solar radiation meter and the outer mounting base 18.

[0030] The outer casing 11 of the upper solar radiation meter is provided with an inner fixing seat 19, and an outer fixing seat 18 covers the inner fixing seat 19 to seal it. An inner glass cover 192 is threadedly connected to the inner fixing seat 19, and a screw c191 is installed through the inner fixing seat 19. The inner fixing seat 19 is installed on the outer casing 11 of the upper solar radiation meter through a mica sheet 193. The outer glass cover 182 and the inner glass cover 192 are hemispherical and are made of high light transmittance quartz material, which has high light transmittance, high stability, high strength, wear resistance, pressure resistance and corrosion resistance. After the outer glass cover 182 and the inner glass cover 192 are threadedly connected to the outer fixing seat 18 and the inner fixing seat 19, they are further bonded with sealant to further ensure stability.

[0031] The upper solar radiation meter housing 11 is equipped with a mica sheet 193, which absorbs solar radiation. The mica sheet 193 is protected by a double layer of glass cover 182 and an inner glass cover 192. A winding core 194 is bolted to the upper solar radiation meter housing 11. The winding core 194 converts photothermal signals into electrical signals. The mica sheet 193 is bonded to the winding core 194. At the same time, a thermopile sensor is installed inside the upper solar radiation meter housing 11. Precision temperature compensation ensures measurement accuracy. The thermopile sensor model can be TMP007. It can monitor its own temperature and the ambient temperature in real time, has excellent linearity, and a stable output signal. It is suitable as the core sensing element of the upper solar radiation meter housing 11. Together with the outer glass cover 182 and the inner glass cover 192, it forms a reference measurement unit to provide reliable raw data for calibration.

[0032] A radiation chip 195 is fixedly installed on the outer casing 11 of the solar radiation meter. The circuit in the radiation chip 195 is connected to the winding core 194 for temperature compensation, and then the analog signal is transmitted to the acquisition board in the middle through the circuit.

[0033] The outer side of the solar radiation meter housing 11 is provided with an aviation plug 15 for directly transmitting solar radiation data of the standard radiation meter.

[0034] A display and control module 121 is fixedly installed on the outside of the outer casing 12 of the lower solar radiation meter. The display and control module 121 integrates a display screen and control buttons. The display screen can display the following information in real time: time, solar radiation value of the standard radiation meter, exposure amount, ambient temperature, comparison value between the standard radiation meter and the calibrated radiation meter, and operation of the control buttons such as switches.

[0035] Meanwhile, the outer casing 12 of the solar radiation meter also has a power socket (not shown) and a power switch (not shown). The power socket can be used with a 12V 10A power adapter.

[0036] Several sets of connection ports 14 are fixedly installed on the outer casing 12 of the lower solar radiation meter. These connection ports 14 meet the IP67 protection standard. From top to bottom, the connection ports 14 are the connection port of the radiation meter to be calibrated and the connection port of the host computer. The connection port of the radiation meter to be calibrated is used to connect to the solar radiation sensor of the site to be calibrated and receive its data. The connection port of the host computer is used to connect to host computer devices such as a host computer to transmit calibration data to the background for analysis and storage. The upper connection port 14 can be directly connected to the radiation meter under test through shielded twisted pair cable, while the lower connection port 14 supports communication with the host computer.

[0037] The calibration instrument assembly 10 is capable of receiving solar radiation and transmitting the data to the internal processing unit. Simultaneously, the aviation connector 15 receives data from the solar radiation sensor at the site to be calibrated. The internal processing unit then compares and analyzes the two sets of data and displays the results in real time on the display and control module 121. Furthermore, the user can transmit the calibration data to the backend via the connection port 14 for further analysis and recording. If a deviation is found during the comparison, the user can adjust the coefficient of the site radiation meter according to the standard value provided by the calibration instrument assembly 10 to achieve self-calibration of sensitivity, thereby ensuring the accuracy of the site radiation meter reading and keeping it consistent with the standard value.

[0038] It should be noted that in this application, the display screen integrated in the display and control module 121 displays information such as time, solar radiation value, exposure amount, and ambient temperature in real time; the control buttons implement the logic of switching operations; the power socket is adapted to the power supply method of a 12V 10A power adapter; and the interface design of the connection port 14, which complies with the IP67 protection standard, transmits data through shielded twisted pair cables, and supports communication with the host computer, all adopt conventional technical means in this field.

[0039] Furthermore, a threaded block 16 is threadedly connected to the upper solar radiation meter housing 11. The threaded block 16 contains a desiccant and is tightly screwed into the upper solar radiation meter housing 11 through the threads, and then sealed with glue to ensure its airtightness.

[0040] The solar radiation meter housing 11 is threaded with a level 17. The level 17 contains a small bubble. If the calibrator assembly 10 is not placed evenly, the small bubble will shift off-center, thus facilitating the adjustment and placement of the calibrator assembly 10.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A solar radiation calibrator, characterized in that: The calibrator assembly (10) includes an upper solar radiation meter housing (11) and a lower solar radiation meter housing (12). A screw a (13) is provided between the upper solar radiation meter housing (11) and the lower solar radiation meter housing (12) to connect the two parts. Both the upper solar radiation meter housing (11) and the lower solar radiation meter housing (12) are made of aluminum alloy powder coating and are sealed and fixed by a high-strength aluminum alloy flange.

2. The solar radiation calibrator according to claim 1, characterized in that: An outer mounting base (18) is fixedly installed on the outer casing (11) of the upper solar radiation meter. A screw b (181) is provided through the outer mounting base (18) to connect with the outer casing (11). An outer glass cover (182) is threaded onto the outer mounting base (18). A sealing ring (183) is provided between the outer casing (11) of the upper solar radiation meter and the outer mounting base (18).

3. The solar radiation calibrator according to claim 2, characterized in that: An inner fixing seat (19) is provided on the outer casing (11) of the upper solar radiation meter. An outer fixing seat (18) covers the inner fixing seat (19) and is aligned and sealed. A screw c (191) is installed through the inner fixing seat (19). An inner glass cover (192) is threadedly connected to the inner fixing seat (19). The outer glass cover (182) and the inner glass cover (192) are hemispherical and made of high light transmittance quartz material.

4. The solar radiation calibrator according to claim 1, characterized in that: A mica sheet (193) is provided on the outer shell (11) of the upper solar radiation meter. The mica sheet (193) is double-protected by an outer glass cover (182) and an inner glass cover (192). A winding core (194) is connected to the outer shell (11) of the upper solar radiation meter by bolts. The mica sheet (193) is bonded to the winding core (194). A thermopile sensor is provided inside the outer shell (11) of the upper solar radiation meter. A radiation chip (195) is fixedly installed on the outer shell (11) of the upper solar radiation meter. The circuit in the radiation chip (195) is connected to the winding core (194).

5. The solar radiation calibrator according to claim 1, characterized in that: An aviation plug (15) is provided on the outside of the upper solar radiation meter housing (11). A threaded block (16) is threadedly connected to the upper solar radiation meter housing (11). The threaded block (16) contains a desiccant and is screwed into the upper solar radiation meter housing (11) by the thread and then sealed with glue. A level (17) is threadedly connected to the upper solar radiation meter housing (11).

6. The solar radiation calibrator according to claim 1, characterized in that: A display and control module (121) is fixedly installed on the outside of the lower solar radiation meter housing (12). The display and control module (121) integrates a display screen and control buttons. A power socket and a power switch are provided on the lower solar radiation meter housing (12).

7. The solar radiation calibrator according to claim 1, characterized in that: Several sets of connection ports (14) are fixedly installed on the outer shell (12) of the lower solar radiation meter. The connection ports (14) are, from top to bottom, the connection port of the radiation meter to be calibrated and the connection port of the host computer. The upper connection port is directly connected to the radiation meter to be tested through a shielded twisted pair cable, and the lower connection port supports communication with the host computer.

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