Low energy consumption power conversion energy saving device

Abstract

The utility model provides a kind of low energy consumption power conversion energy-saving equipment, including main component, the top of main component is provided with cleaning assembly, the surface of cleaning assembly bottom is equipped with power conversion module, and the power conversion module includes soft switch topology circuit, composite filter circuit and conducting part;The cleaning assembly includes first motor, threaded rod, sliding table, liquid inlet pipe, pump, water distribution pipe, spray head, support, second motor, brush and squeegee.The utility model passes through the adoption soft switch topology circuit, utilizes SiC-MOSFET switch tube in phase-shift full-bridge circuit and parallel buffer capacitor, can effectively reduce switch tube in the process of on-off switching loss;The use of high-frequency filter unit and low-frequency filter unit in composite filter circuit, different frequency harmonic can be effectively filtered, reduce harmonic loss, to improve power conversion efficiency.

Description

Technical Field

[0001] This utility model relates to the field of power conversion equipment technology, specifically a low-energy power conversion and energy-saving device suitable for various power equipment such as transformers and inverters. Background Technology

[0002] In a solar photovoltaic conversion system (PV system), the inverter is the core power conversion device, while the transformer is an auxiliary voltage regulation and electrical isolation device. The two work together to ensure that the power generated by the photovoltaic modules meets the power demand for grid-connected or off-grid use.

[0003] Existing solar photovoltaic conversion equipment generally suffers from high energy loss during operation, mainly in the following aspects: First, the power conversion circuit topology design is unreasonable, resulting in large switching losses during the switching process of the switching transistors. At the same time, the filtering effect of the filtering circuit is poor, leading to increased harmonic losses. Second, the equipment surface is exposed to the external environment for a long time. Dust, sand and other particulate matter in the natural environment, as well as pollutants generated by human activities, accumulate on the equipment surface. This not only blocks the equipment surface, reduces the amount of solar radiation received by the equipment, and lowers the photovoltaic conversion efficiency, thus affecting the output performance of the battery, but also accelerates the aging and corrosion of the equipment, shortening its service life. Therefore, a low-energy power conversion energy-saving device is proposed. Utility Model Content

[0004] In view of this, the present invention provides a low-energy power conversion energy-saving device to solve or alleviate one of the technical problems existing in the prior art, and at least achieve the purpose of reducing energy loss and improving conversion efficiency.

[0005] The technical solution of this utility model embodiment is implemented as follows: a low-energy power conversion energy-saving device includes a main component, a cleaning component is provided on the top of the main component, and a power conversion module is installed on the bottom surface of the cleaning component. The power conversion module includes a soft-switching topology circuit, a composite filter circuit, and conductive components. The cleaning assembly includes a first motor, a threaded rod, a slide, an inlet pipe, a pump, a water distribution pipe, a nozzle, a bracket, a second motor, a brush, and a scraper. The soft-switching topology circuit is electrically connected to the composite filter circuit through conductive components. The output shaft of the first motor is fixedly connected to one end of a threaded rod. A slide is threadedly connected to the outer wall of the threaded rod. A water distribution pipe is fixedly connected to the top of the slide. One end of the water distribution pipe is connected to an inlet pipe. A pump is installed on the inlet pipe. Spray nozzles are evenly installed at the bottom of the slide. The spray nozzles are connected to the water distribution pipe. A bracket is fixedly connected to the bottom of the slide. A second motor is installed on one side of the bracket. The output shaft of the second motor is fixedly connected to one end of a brush. The brush is rotatably connected to the inner wall of the bracket. A scraper is fixedly connected to the bottom of the bracket.

[0006] A further preferred embodiment: the main component includes a water tank and a controller, with the controller mounted on the top of the water tank.

[0007] A further preferred embodiment: the top of the water tank is symmetrically and fixedly connected with support columns, and the top of the support columns is fixedly connected with a support plate.

[0008] A further preferred embodiment: a photovoltaic panel is installed on the top of the support plate.

[0009] A further preferred embodiment: the first motor is mounted on one side of the support plate, and the slide is slidably connected to the inner wall of the support plate.

[0010] A further preferred embodiment: a recycling component is provided at the bottom of one end of the cleaning component, the recycling component including a recycling tank, a return pipe and a filter plate; The bottom of the recycling tank is connected to a return pipe, one end of which is connected to a water tank. A filter plate is detachably and fixedly connected to the inner wall of the recycling tank.

[0011] A further preferred embodiment: the recycling tank is fixedly connected to one side of the water tank.

[0012] A further preferred embodiment: the composite filter circuit includes a high-frequency filter unit and a low-frequency filter unit, which are connected in series.

[0013] The beneficial effects of this utility model are: 1. This utility model adopts a soft-switching topology circuit, utilizing SiC-MOSFET switching transistors and parallel buffer capacitors in the phase-shifted full-bridge circuit to effectively reduce switching losses during the switching process. Simultaneously, the SiC-MOSFET switching transistors possess high temperature resistance and low on-resistance characteristics, further reducing energy loss. The combined use of high-frequency and low-frequency filtering units in the composite filter circuit effectively filters harmonics of different frequencies, reducing harmonic losses and thus improving power conversion efficiency. 2. The conductive component of this utility model is made of oxygen-free copper and silver-plated. Oxygen-free copper has a low resistivity, and the silver plating layer can further reduce the surface contact resistance and reduce energy loss during the conduction process. 3. This utility model controls the pump to work through the controller, which delivers cleaning liquid into the water distribution pipe. The first motor works to move the slide table, which uses the nozzle to wash the photovoltaic panel. The second motor drives the brush to scrub the photovoltaic panel, and the scraper removes excess water. This allows for regular cleaning of the photovoltaic panel surface, reducing the impact of pollutants on the photovoltaic panel and improving the photoelectric conversion efficiency. 4. This utility model recovers and filters the cleaning liquid through a recycling component, and then returns the filtered cleaning liquid to the water tank for future use, which can save resources and reduce waste of cleaning liquid.

[0014] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a structural view of the present invention from one perspective; Figure 2 This is another structural view of the present invention; Figure 3 This is a structural diagram of the slide table of this utility model; Figure 4 This is a structural diagram of the internal structure of the recycling tank of this utility model; Figure 5 This is a schematic diagram of the power conversion module of this utility model.

[0017] Reference numerals: 10. Main component; 11. Water tank; 12. Controller; 13. Support column; 14. Support plate; 15. Photovoltaic panel; 20. Cleaning component; 21. First motor; 22. Threaded rod; 23. Slide table; 24. Liquid inlet pipe; 25. Pump; 26. Water distribution pipe; 27. Nozzle; 28. Bracket; 29. ​​Second motor; 210. Brush; 211. Scraper; 30. Recycling component; 31. Recycling tank; 32. Return pipe; 33. Filter plate; 40. Power conversion module; 401. Soft switching topology circuit; 402. Composite filter circuit; 403. Conductive component; 4021. High-frequency filter unit; 4022. Low-frequency filter unit. Detailed Implementation

[0018] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive. Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0019] like Figures 1-5 As shown, this utility model embodiment provides a low-energy power conversion energy-saving device, including a main component 10, a cleaning component 20 is provided on the top of the main component 10, and a power conversion module 40 is installed on the bottom surface of the cleaning component 20. The power conversion module 40 includes a soft-switching topology circuit 401, a composite filter circuit 402, and a conductive component 403. The cleaning assembly 20 includes a first motor 21, a threaded rod 22, a slide 23, an inlet pipe 24, a pump 25, a water distribution pipe 26, a nozzle 27, a bracket 28, a second motor 29, a brush 210, and a scraper 211. The soft-switching topology circuit 401 is electrically connected to the composite filter circuit 402 through the conductive component 403; The power conversion module 40 includes a soft-switching topology circuit 401, a composite filter circuit 402, and a conductive component 403. The soft-switching topology circuit 401 is electrically connected to the composite filter circuit 402. The conductive component 403 is made of oxygen-free copper and has a silver layer plated on its surface. The silver layer thickness is set to 0.5-1μm, which can effectively reduce contact resistance. The soft-switching topology circuit 401 includes a phase-shifted full-bridge circuit, which consists of four SiC-MOSFET switches. The selected SiC-MOSFET switches are model C2M0080120D. Each SiC-MOSFET switch is connected in parallel with a buffer capacitor. The buffer capacitor is a 1000pF ceramic capacitor, which can absorb overvoltage across the switch and reduce switching losses. The composite filter circuit 402 includes a high-frequency filter unit 4021 and a low-frequency filter unit 4022. The high-frequency filter unit 4021 uses a CFU-100 ceramic filter, which can filter high-frequency harmonics above 1MHz. The low-frequency filter unit 4022 uses an inductor-capacitor filter circuit. The inductor is a surface-mount inductor with a nanocrystalline alloy core, and the capacitor is an electrolytic capacitor, which can filter low-frequency harmonics of 50-100kHz. The high-frequency filter unit 4021 and the low-frequency filter unit 4022 are connected in series to achieve full-band harmonic filtering.

[0020] The soft-switching topology circuit 401 in the power conversion module 40 realizes the conversion of electrical energy, and the composite filter circuit 402 filters the harmonics generated during the conversion process, thereby reducing the conductive losses of the transformer and inverter.

[0021] The output shaft of the first motor 21 is fixedly connected to one end of the threaded rod 22. A slide 23 is threadedly connected to the outer wall of the threaded rod 22. A water distribution pipe 26 is fixedly connected to the top of the slide 23. One end of the water distribution pipe 26 is connected to an inlet pipe 24. A pump 25 is installed on the inlet pipe 24. Spray nozzles 27 are evenly installed at the bottom of the slide 23. The spray nozzles 27 are connected to the water distribution pipe 26. A bracket 28 is fixedly connected to the bottom of the slide 23. A second motor 29 is installed on one side of the bracket 28. The output shaft of the second motor 29 is fixedly connected to one end of a brush 210. The brush 210 is rotatably connected to the inner wall of the bracket 28. A scraper 211 is fixedly connected to the bottom of the bracket 28. The spray nozzles 27 are used to rinse the photovoltaic panel 15. The second motor 29 drives the brush 210 to rotate and brush the photovoltaic panel 15. The scraper 211 is used to scrape off excess water. This allows for regular cleaning of the surface of the photovoltaic panel 15 and reduces the impact of pollutants on the photovoltaic panel 15. Cleaning liquid is injected into the water tank 11. After the photovoltaic panel 15 has been working for a period of time, the pump 25 is controlled by the controller 12 to send the cleaning liquid into the water distribution pipe 26. The first motor 21 drives the threaded rod 22 to rotate, causing the slide table 23 to move along the support plate 14. The spray nozzle 27 is used to rinse the photovoltaic panel 15. The second motor 29 drives the brush 210 to rotate and brush the photovoltaic panel 15. The scraper 211 removes excess water. This can clean the surface of the photovoltaic panel 15 regularly, reduce the impact of pollutants on the photovoltaic panel 15, and improve the photoelectric conversion efficiency. The cleaning liquid flows into the recovery tank 31 along the surface of the photovoltaic panel 15. Impurities are filtered out by the filter plate 33. The filtered cleaning liquid is sent back to the water tank 11 through the return pipe 32 for the next use, which can save resources and reduce the waste of cleaning liquid. In this embodiment, specifically: the main component 10 includes a water tank 11 and a controller 12. The controller 12 is installed on the top of the water tank 11. The controller 12 controls the cleaning component 20 to perform cleaning work periodically to prevent scale buildup on the surface of the photovoltaic panel 15.

[0022] In this embodiment, specifically: the top of the water tank 11 is symmetrically and fixedly connected with support columns 13.

[0023] In this embodiment, specifically: a support plate 14 is fixedly connected to the top of the support column 13.

[0024] In this embodiment, specifically: a photovoltaic panel 15 is installed on the top of the support plate 14, and the photovoltaic conversion is completed through the photovoltaic panel 15. After the photovoltaic panel 15 has been working for a period of time, the cleaning component 20 cleans it periodically.

[0025] In this embodiment, specifically: the first motor 21 is installed on one side of the support plate 14, and the slide 23 is slidably connected to the inner side wall of the support plate 14. When the first motor 21 works, it drives the threaded rod 22 to rotate, so that the slide 23 moves along the support plate 14.

[0026] In this embodiment, specifically: the recycling component 30 includes a recycling tank 31, a return pipe 32, and a filter plate 33; The bottom of the recycling tank 31 is connected to a return pipe 32, one end of which is connected to the water tank 11. A filter plate 33 is detachably and fixedly connected to the inner wall of the recycling tank 31. Impurities are filtered through the filter plate 33, and the filtered cleaning liquid is returned to the water tank 11 through the return pipe 32 for the next use.

[0027] In this embodiment, specifically: the recycling tank 31 is fixedly connected to one side of the water tank 11, and the cleaning liquid flows into the recycling tank 31 along the surface of the photovoltaic panel 15.

[0028] By employing a soft-switching topology circuit 401, and utilizing the SiC-MOSFET switching transistors and parallel buffer capacitors in the phase-shifted full-bridge circuit, the switching losses of the switching transistors during the switching process can be effectively reduced. At the same time, the SiC-MOSFET switching transistors have the characteristics of high temperature resistance and low on-resistance, further reducing energy loss. In the composite filter circuit 402, the high-frequency filter unit 4021 and the low-frequency filter unit 4022 work together to effectively filter harmonics of different frequencies, reduce harmonic losses, and thus improve power conversion efficiency.

[0029] The conductive component 403 is made of oxygen-free copper and is silver-plated. Oxygen-free copper has a low resistivity, and the silver plating layer can further reduce the surface contact resistance and reduce energy loss during the conduction process.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A low-energy power conversion and energy-saving device, comprising a main component (10), characterized in that: A cleaning component (20) is provided on the top of the main component (10), and a power conversion module (40) is installed on the bottom surface of the cleaning component (20). The power conversion module (40) includes a soft-switching topology circuit (401), a composite filter circuit (402), and a conductive component (403). The cleaning assembly (20) includes a first motor (21), a threaded rod (22), a slide (23), an inlet pipe (24), a pump (25), a water distribution pipe (26), a nozzle (27), a bracket (28), a second motor (29), a brush (210), and a scraper (211). The soft-switching topology circuit (401) is electrically connected to the composite filter circuit (402) through a conductive component (403). The output shaft of the first motor (21) is fixedly connected to one end of a threaded rod (22). A slide (23) is threadedly connected to the outer wall of the threaded rod (22). A water distribution pipe (26) is fixedly connected to the top of the slide (23). One end of the water distribution pipe (26) is connected to an inlet pipe (24). A pump (25) is installed on the inlet pipe (24). The bottom of the slide (23) is evenly equipped with nozzles (27), the nozzles (27) are connected to the water distribution pipe (26), the bottom of the slide (23) is fixedly connected with a bracket (28), a second motor (29) is installed on one side of the bracket (28), the output shaft of the second motor (29) is fixedly connected to one end of the brush (210), the brush (210) is rotatably connected to the inner side wall of the bracket (28), and a scraper (211) is fixedly connected to the bottom of the bracket (28).

2. The low-energy power conversion and energy-saving device according to claim 1, characterized in that: The main component (10) includes a water tank (11) and a controller (12), with the controller (12) mounted on the top of the water tank (11).

3. The low-energy power conversion and energy-saving device according to claim 2, characterized in that: The top of the water tank (11) is symmetrically and fixedly connected to a support column (13), and the top of the support column (13) is fixedly connected to a support plate (14).

4. The low-energy power conversion and energy-saving device according to claim 3, characterized in that: A photovoltaic panel (15) is installed on the top of the support plate (14).

5. The low-energy power conversion and energy-saving device according to claim 4, characterized in that: The first motor (21) is installed on one side of the support plate (14), and the slide (23) is slidably connected to the inner wall of the support plate (14).

6. The low-energy power conversion and energy-saving device according to claim 1, characterized in that: The bottom of one end of the cleaning component (20) is provided with a recycling component (30), which includes a recycling tank (31), a return pipe (32) and a filter plate (33). The bottom of the recycling tank (31) is connected to a return pipe (32), one end of which is connected to a water tank (11). A filter plate (33) is detachably and fixedly connected to the inner wall of the recycling tank (31).

7. The low-energy power conversion and energy-saving device according to claim 6, characterized in that: The recycling tank (31) is fixedly connected to one side of the water tank (11).

8. The low-energy power conversion and energy-saving device according to claim 1, characterized in that: The composite filter circuit (402) includes a high-frequency filter unit (4021) and a low-frequency filter unit (4022), which are connected in series.

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