Dust removal box body for photovoltaic inverter

Abstract

The application provides a dust removal box body for a photovoltaic inverter, and relates to the technical field of photovoltaic inverter box bodies.The box body comprises a box body proper, two oppositely distributed guide sliding rails one are arranged on the inner side of the box body proper, wherein the guide sliding rail one is above a ventilation pipe;guide sliding blocks are slidably arranged in the two guide sliding rails one;guide sliding rail two is arranged between the bottoms of the two guide sliding blocks;an adjusting sliding block is slidably arranged in the guide sliding rail two;an air conveying pipe is arranged on the inner side of the adjusting sliding block;and a telescopic air flow pipe is further connected to the side of the positioning vertical pipe.The adjusting sliding block is adjusted to drive the air conveying pipe to face the high heat consumption area of the inverter, so that directional and targeted heat dissipation is realized on the high heat consumption area, the service life of components is prolonged, the overall working efficiency of the photovoltaic inverter is ensured, and the problem that the targetedness of some high heat consumption components is poor, so that the heat of the area is much higher than that of other positions is solved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic inverter enclosure technology, and more particularly to a dust removal enclosure for photovoltaic inverters. Background Technology

[0002] Photovoltaic inverters are the core equipment of photovoltaic power generation systems, converting direct current (DC) into AC standard AC. Photovoltaic inverters are widely deployed in outdoor ground-mounted photovoltaic power stations. Especially in windy and sandy areas such as the Northwest desert and Gobi regions, enclosures are needed to protect against dust and reduce its impact on inverter operation. However, current photovoltaic inverter enclosures generally use a full-area DC ventilation cooling solution for ventilating and dissipating heat from the built-in inverters. This solution is not very effective at targeting high-heat-consuming components, resulting in higher heat levels in these areas compared to other locations, thus affecting the overall operating efficiency of the photovoltaic inverter. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a dust collection enclosure for photovoltaic inverters, thereby solving the problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a dust collection enclosure for a photovoltaic inverter, specifically comprising: an enclosure body, wherein ventilation slots are provided on both sides of the bottom of the enclosure body, and a multi-directional airflow hood is installed on the top of the enclosure body; a shielding cover is installed on the top of the multi-directional airflow hood, wherein the top of the shielding cover has a conical structure; a slot is provided in the middle of the bottom of the multi-directional airflow hood, and a collection hood is rotatably installed inside the slot; a limiting protrusion is provided on the outer side of the collection hood, and a guide hood is connected to the bottom of the collection hood, wherein a rotary joint is installed at the bottom of the guide hood, and a serrated structure is provided on the outer side of the guide hood; a positioning vertical tube is rotatably installed on the rotary joint at the bottom of the guide hood; The positioning vertical tube is connected to two conveying pipes on its side; a ventilation pipe is installed inside the box body; the side end of the conveying pipe is connected to the ventilation pipe; two oppositely distributed guide rails are installed inside the box body, wherein the guide rails are located above the ventilation pipe; guide sliders are slidably installed inside both guide rails; a guide rail is installed between the bottoms of the two guide sliders; an adjusting slider is slidably installed inside the guide rail; an air supply pipe is installed inside the adjusting slider; a telescopic airflow pipe is also connected to the side of the positioning vertical tube; the side end of the telescopic airflow pipe is connected to the top of the air supply pipe.

[0005] Furthermore, the four sides of the multi-directional airflow hood are provided with interconnected slots, and the grooves on the four sides of the multi-directional airflow hood are all provided with guide grooves, and filters are installed in the grooves on the four sides of the multi-directional airflow hood.

[0006] Furthermore, a guide slide plate is slidably installed inside the guide groove; two cleaning scrapers are installed at the outer end of the guide slide plate.

[0007] Furthermore, brushes are provided on the inner side of both cleaning scrapers, and a gap is provided between the two cleaning scrapers. The brushes on the inner side of the cleaning scrapers are slidably installed on the outer side of the filter screen; air jet hoods are installed in the grooves on the four sides of the multi-directional airflow hood.

[0008] Furthermore, the jet hood faces the inside of the filter screen, and the gap between the jet hood and the two cleaning scrapers on the same side is aligned; the top of the multi-directional airflow hood is provided with a groove, and two air accumulators are installed on the top of the multi-directional airflow hood.

[0009] Furthermore, the air sac is provided with an air intake valve on its side, and both ends of the air sac are connected to guide tubes; the guide tubes have built-in counterflow valves, and the side ends of the guide tubes are connected to diverter tubes.

[0010] Furthermore, the side of the diverter pipe is connected to the side of the jet shroud; two drive cylinders are installed on the top of the multi-directional airflow shroud, and a traction bracket is installed on the output end of the top of the drive cylinder.

[0011] Furthermore, the traction bracket and the air sump are located inside the shielding cover; the bottom ends of the traction bracket are installed on the top of the air sump; and traction support plates are installed at the included angle of the side edges of the traction bracket.

[0012] Furthermore, a force-applying push plate is installed at the bottom of the side end of the traction support plate; the bottom of the force-applying push plate passes through the top of the multi-directional airflow hood and is connected to the bottom of the cleaning scraper and the jet hood.

[0013] Furthermore, a servo motor is installed at the bottom of the multi-directional airflow shroud, and a rotating gear is installed on the output end of the servo motor at the bottom; the side of the rotating gear meshes with the serrated structure on the side of the airflow shroud.

[0014] This invention provides a dust collection box for a photovoltaic inverter, which has the following advantages: In use, this invention gathers airflow through a guide shroud and delivers it sequentially through a positioning vertical pipe and a conveying pipe to a ventilation pipe. The slots at the bottom of the ventilation pipe enable large-scale, uniform ventilation and heat dissipation inside the housing, quickly dispersing heat from the equipment. Adjusting the slider position directs the air delivery pipe toward the high heat dissipation area of ​​the inverter, achieving targeted heat dissipation for that area. This is no longer limited to a uniform heat dissipation mode across the entire area, preventing a decrease in overall efficiency due to localized high temperatures, extending the lifespan of components, and ensuring the overall efficiency of the photovoltaic inverter.

[0015] In addition, the multi-directional airflow hood is equipped with filters around its perimeter, which can introduce airflow from multiple directions while intercepting dust within the airflow. The drive cylinder drives the traction bracket, which in turn allows the brushes on the cleaning scraper to directly scrape off the dust accumulated on the outer surface of the filter. The traction bracket presses down on the air accumulator, causing the gas inside to be ejected through the jet hood and sprayed outward from the inside of the filter. Dust can be discharged outward from the gap between the cleaning scrapers on both sides. This eliminates the need for frequent manual disassembly and cleaning of the filter, reducing maintenance workload, ensuring the airflow capacity of the filter, and guaranteeing the ventilation and heat dissipation effect of the photovoltaic inverter inside the cabinet. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0018] In the attached diagram: Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 A schematic cross-sectional view of the shielding cover of the present invention is shown; Figure 3 A cross-sectional view of the multi-directional airflow shroud of the present invention is shown; Figure 4 A three-dimensional structural schematic diagram of the air bladder of the present invention is shown; Figure 5 The invention is shown by Figure 4 A schematic diagram of the enlarged structure of part A is shown. Figure 6 A three-dimensional structural diagram of the collection cover of the present invention is shown; Figure 7 A three-dimensional structural diagram of the bottom of the flow guide shield of the present invention is shown; Figure 8 A three-dimensional structural diagram of the bottom of the ventilation duct of the present invention is shown; Figure 9 A schematic diagram of the three-dimensional structure of the positioning vertical tube of the present invention is shown.

[0019] List of reference numerals 1. Body of the enclosure; 101. Multi-directional airflow hood; 102. Shielding cover; 103. Guide chute; 104. Filter screen; 105. Guide slide plate; 106. Cleaning scraper; 107. Jet hood; 108. Air accumulator; 109. Flow guide pipe; 1010. Diverter pipe; 1011. Traction bracket; 1012. Traction support plate; 1013. Force application push plate; 2. Collection hood; 201. Flow guide hood; 202. Rotary gear; 3. Positioning vertical pipe; 301. Conveying pipe; 302. Ventilation pipe; 303. Guide slide rail one; 304. Guide slider; 305. Guide slide rail two; 306. Adjusting slider; 307. Air supply pipe; 308. Telescopic airflow pipe. Detailed Implementation

[0020] Please refer to Figures 1 to 9 : Example 1: This invention proposes a dust collection box for a photovoltaic inverter, comprising: a box body 1, ventilation slots on both sides of the bottom of the box body 1, and a multi-directional airflow hood 101 installed on the top of the box body 1; a shielding cover 102 installed on the top of the multi-directional airflow hood 101, wherein the top of the shielding cover 102 is a conical structure; the four sides of the multi-directional airflow hood 101 are provided with communicating slots, and guide grooves 103 are provided on the sides of the grooves on the four sides of the multi-directional airflow hood 101. A filter screen 104 is installed in each of the grooves on the surface; a guide slide plate 105 is slidably installed inside the guide slide 103; two cleaning scrapers 106 are installed at the outer end of the guide slide plate 105; brushes are provided on the inner side of each of the two cleaning scrapers 106, and there is a gap between the two cleaning scrapers 106. The brushes on the inner side of the cleaning scrapers 106 are slidably installed on the outer side of the filter screen 104; jet hoods 107 are installed in the grooves on the four sides of the multi-directional airflow hood 101; the jet hoods 107 face the inner side of the filter screen 104, and the jet hoods 107... Aligned with the gap between the two cleaning scrapers 106 on the same side; the top of the multi-directional airflow hood 101 is provided with a groove, and two air accumulators 108 are installed on the top of the multi-directional airflow hood 101; an air intake valve is provided on the side of the air accumulator 108, and both ends of the air accumulator 108 are connected to a guide pipe 109; the guide pipe 109 has a built-in counterflow valve, and a diverter pipe 1010 is connected to the side end of the guide pipe 109; the side of the diverter pipe 1010 is connected to the side of the jet hood 107; two drive cylinders are installed on the top of the multi-directional airflow hood 101, driving... A traction bracket 1011 is installed on the output end of the top of the cylinder; the traction bracket 1011 and the air accumulator 108 are located inside the shield cover 102; the bottom ends of the traction bracket 1011 are installed on the top of the air accumulator 108; a traction support plate 1012 is installed at the angle of the side edge of the traction bracket 1011; a force-applying push plate 1013 is installed at the bottom of the side end of the traction support plate 1012; the bottom of the force-applying push plate 1013 passes through the top of the multi-directional airflow cover 101 and is connected to the bottom of the cleaning scraper 106 and the jet cover 107.

[0021] In this embodiment of the invention, a photovoltaic inverter is installed inside the housing 1. The filters 104 on the inner sides of the four sides of the multi-directional airflow hood 101 can guide the airflow from different directions. The filters 104 filter the dust in the airflow. The dust accumulated on the outside of the filters 104 is cleaned periodically. The drive cylinders inside the top of the multi-directional airflow hood 101 and the shield cover 102 drive the traction bracket 1011 to move downward. The traction support plates 1012 at the four side edges of the traction bracket 1011 drive the force-applying push plate 1013 to move downward. The bottom of the force-applying push plate 1013 penetrates the top of the multi-directional airflow hood 101 and pushes the cleaning scraper 106 and the jet cover 107 to move downward synchronously. The guide slide plates 105 at both ends of the cleaning scraper 106 move along the guide groove 1. 03. The brush on the inner side of the cleaning scraper 106 scrapes and cleans the dust filtered out from the outer side of the filter screen 104. At the same time, when the traction bracket 1011 moves downward, the bottom of both ends of the traction bracket 1011 squeezes the air accumulator 108. The airflow inside the air accumulator 108 flows through the guide pipe 109 to the inside of the diversion pipe 1010. The airflow inside the diversion pipe 1010 then enters the inside of the jet hood 107. The jet hood 107 has a narrow jet slot, and the airflow is compressed and ejected at high pressure. The airflow is ejected from the inner side of the filter screen 104 and flows out through the gap between the two cleaning scrapers 106 on the same side, making the dust cleaning effect more obvious, ensuring the dust removal effect of the filter screen 104 on the ventilation airflow, and ensuring the ventilation and heat dissipation effect inside the housing body 1.

[0022] In Embodiment 2, based on Embodiment 1, a slot is provided in the middle of the bottom of the multi-directional airflow shroud 101, and a collecting shroud 2 is rotatably installed inside the slot; a limiting protrusion is provided on the outer side of the collecting shroud 2, and a guide shroud 201 is connected to the bottom of the collecting shroud 2. A rotary joint is installed at the bottom of the guide shroud 201, and a serrated structure is provided on the outer side of the guide shroud 201; a servo motor is installed at the bottom of the multi-directional airflow shroud 101, and a rotating gear 202 is installed on the output end of the servo motor; the side of the rotating gear 202 and the serrated structure on the side of the guide shroud 201 are... The servo motor at the bottom of the multi-directional airflow hood 101 drives the rotating gear 202 to rotate. The side of the rotating gear 202 meshes with and drives the guide hood 201 to rotate. The guide hood 201 drives the collection hood 2 to rotate inside the multi-directional airflow hood 101, so that the slots on the side of the collection hood 2 face the direction of airflow, so that the airflow is collected into the interior of the collection hood 2. The airflow then flows downward through the guide hood 201, so that the filtered clean airflow enters the interior of the housing body 1 to dissipate heat from the photovoltaic inverter.

[0023] In Example 3, based on Example 1, a positioning vertical pipe 3 is rotatably installed on the bottom rotary joint of the flow guide shroud 201; two conveying pipes 301 are connected to the side of the positioning vertical pipe 3; a ventilation pipe 302 is installed inside the box body 1; the side end of the conveying pipe 301 is connected to the ventilation pipe 302; two oppositely distributed guide rails 303 are installed inside the box body 1, wherein the guide rail 303 is above the ventilation pipe 302; guide sliders 304 are slidably installed inside both guide rails 303; a guide rail 305 is installed between the bottoms of the two guide sliders 304; an adjusting slider 306 is slidably installed inside the guide rail 305; an air supply pipe 307 is installed inside the adjusting slider 306; a telescopic airflow pipe 308 is also connected to the side of the positioning vertical pipe 3; the side end of the telescopic airflow pipe 308 is connected to the top of the air supply pipe 307, guiding... When the shroud 201 rotates, it in turn drives the top of the positioning vertical tube 3 to rotate. The collected airflow is diverted through the positioning vertical tube 3 to the inside of the delivery pipe 301 and then to the inside of the ventilation pipe 302. The slot at the bottom of the ventilation pipe 302 provides large-area ventilation and heat dissipation for the inside of the housing body 1. The position of the adjusting slider 306 is adjusted to make the guide slider 304 move along the inner side of the first guide rail 303. The guide slider 304 drives the second guide rail 305 to move. The adjusting slider 306 drives the air supply pipe 307 to move along the inner side of the second guide rail 305. This causes the adjusting slider 306 to cause the air supply pipe 307 and the telescopic air supply pipe 308 to expand and contract, so that the bottom of the air supply pipe 307 faces the high heat dissipation area of ​​the inverter, which is targeted to dissipate heat in this area and reduce the heat in this area in time, preventing the problem of reduced overall working efficiency due to high temperature in the high area.

[0024] The working principle of this embodiment is as follows: The four side filters 104 filter airflow from different directions. The drive cylinder at the top of the multi-directional airflow cover 101 drives the traction bracket 1011 to move downward. The traction bracket 1011 pushes the cleaning scraper 106 and the jet cover 107 downward synchronously through the force-applying push plate 1013 at the side end of the traction support plate 1012. The brush on the inner side of the cleaning scraper 106 cleans the dust filtered by the filter 104. At the same time, the downward movement of the traction bracket 1011 compresses the air accumulator 108. The airflow inside the air accumulator 108 flows through the guide pipe 109 into the split pipe 1010 and then enters the jet cover 107 and is ejected, expelling the dust on the filter 104 through the gap between the two cleaning scrapers 106 on the same side. The filter 104 is cleaned regularly. The filter 104 facilitates the ventilation of airflow. The dust removal effect of the flow is obvious. The output end of the servo motor drives the rotating gear 202 to mesh and drive the guide shroud 201 to rotate the collection shroud 2. This makes the slot on the side of the collection shroud 2 face the direction of the airflow. The airflow is collected in the collection shroud 2 and then flows downward through the guide shroud 201 into the positioning vertical pipe 3. The airflow is then diverted through the positioning vertical pipe 3 into the conveying pipe 301 and then into the ventilation pipe 302. The slot at the bottom of the ventilation pipe 302 provides large-area ventilation and heat dissipation for the inside of the housing body 1. The guide slider 304 moves along the inner side of the guide slide rail 1 303. The guide slider 304 drives the guide slide rail 2 305 to move. The adjusting slider 306 drives the air supply pipe 307 to move along the inner side of the guide slide rail 2 305. The bottom of the air supply pipe 307 faces the high heat dissipation area of ​​the inverter, providing targeted heat dissipation for this area and improving the overall working efficiency.

Claims

1. A dust collection box for a photovoltaic inverter, comprising: The box body (1) has ventilation slots on both sides of its bottom, and a multi-directional airflow hood (101) is installed on the top of the box body (1); a shielding cover (102) is installed on the top of the multi-directional airflow hood (101); the multi-directional airflow hood (101) has a slot in the middle of its bottom, and a collection hood (2) is rotatably installed inside the slot; a limiting protrusion is provided on the outside of the collection hood (2), and a guide hood (201) is connected to the bottom of the collection hood (2), wherein a rotary joint is installed at the bottom of the guide hood (201), and a serrated structure is provided on the outside of the guide hood (201); a positioning vertical pipe (3) is rotatably installed on the rotary joint at the bottom of the guide hood (201); two conveying pipes (301) are connected to the side of the positioning vertical pipe (3); the inner of the box body (1) A ventilation pipe (302) is installed on the side; the side end of the conveying pipe (301) is connected to the ventilation pipe (302); two guide rails (303) are installed on the inner side of the box body (1), with the guide rails (303) located above the ventilation pipe (302); guide sliders (304) are slidably installed inside both guide rails (303); a guide rail (305) is installed between the bottoms of the two guide sliders (304); an adjusting slider (306) is slidably installed inside the guide rail (305); an air supply pipe (307) is installed inside the adjusting slider (306); a telescopic airflow pipe (308) is also connected to the side of the positioning vertical pipe (3); the side end of the telescopic airflow pipe (308) is connected to the top of the air supply pipe (307).

2. The dust collector housing for a photovoltaic inverter according to claim 1, characterized in that, The four sides of the multi-directional airflow hood (101) are provided with connected slots, and the groove sides of the four sides of the multi-directional airflow hood (101) are all provided with guide grooves (103), and filter screens (104) are installed in the grooves of the four sides of the multi-directional airflow hood (101).

3. The dust collector housing for a photovoltaic inverter according to claim 2, characterized in that, The guide slide (103) is slidably installed inside the guide slide (105); two cleaning scrapers (106) are installed at the outer end of the guide slide (105).

4. A dust collector housing for a photovoltaic inverter according to claim 3, characterized in that, The inner side of both cleaning scrapers (106) is provided with a brush, and there is a gap between the two cleaning scrapers (106). The brush on the inner side of the cleaning scraper (106) is slidably installed on the outer side of the filter screen (104); the air jet hood (107) is installed in the grooves on the four sides of the multi-directional airflow hood (101).

5. A dust collector housing for a photovoltaic inverter according to claim 4, characterized in that, The jet hood (107) faces the inside of the filter screen (104), and the gap between the jet hood (107) and the two cleaning scrapers (106) on the same side is aligned; the top of the multi-directional airflow hood (101) is provided with a groove, and two air sacs (108) are installed on the top of the multi-directional airflow hood (101).

6. A dust collector housing for a photovoltaic inverter according to claim 5, characterized in that, The air sac (108) is provided with an air inlet valve on its side, and both ends of the air sac (108) are connected to a guide tube (109); the guide tube (109) has a built-in counterflow valve, and the side end of the guide tube (109) is connected to a diverter tube (1010).

7. A dust collector housing for a photovoltaic inverter according to claim 6, characterized in that, The side of the diverter (1010) is connected to the side of the jet hood (107); the top of the multi-directional airflow hood (101) is equipped with two drive cylinders, and a traction bracket (1011) is installed on the output end of the top of the drive cylinder.

8. A dust collector housing for a photovoltaic inverter according to claim 7, characterized in that, The traction bracket (1011) and the air sump (108) are located inside the shield cover (102); the bottom ends of the traction bracket (1011) are installed on the top of the air sump (108); a traction support plate (1012) is installed at the corner of the side edge of the traction bracket (1011).

9. A dust collector housing for a photovoltaic inverter according to claim 8, characterized in that, A force-applying push plate (1013) is installed at the bottom of the side end of the traction support plate (1012); the bottom of the force-applying push plate (1013) passes through the top of the multi-directional airflow hood (101) and is connected to the bottom of the cleaning scraper (106) and the jet hood (107).

10. A dust collector housing for a photovoltaic inverter according to claim 9, characterized in that, A servo motor is installed at the bottom of the multi-directional airflow shroud (101), and a rotary gear (202) is installed on the output end of the servo motor; the side of the rotary gear (202) meshes with the serrated structure on the side of the airflow shroud (201).

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