Dustproof photovoltaic box-type transformer

Abstract

The present application relates to the technical field of transformer, and discloses a dustproof photovoltaic box-type transformer, which comprises a box body, a V-shaped photovoltaic panel is arranged on the top of the box body, a transformer body is arranged on the inner side of the box body, a wind shield is further arranged on the inner side of the box body, a fan is arranged on the inner side of the wind shield, an air outlet is arranged on the side of the box body away from the wind shield, and an air inlet is arranged on the same side of the box body and the wind shield. The dustproof photovoltaic box-type transformer is driven to work by the dust scraping assembly and the deep cleaning assembly in cooperation with the cylindrical dustproof cylinder. Under normal circumstances, the second spring pushes the dust scraping plate to adhere to the outer wall of the dustproof cylinder, so that the surface accumulated dust can be scraped in real time; the motor driven reciprocating screw rod driven by photovoltaic power drives the bristles to reciprocate up and down, and the dust inside the mesh is deeply cleaned. Meanwhile, the disassembly assembly can quickly disassemble and clean the bristles, so that the problems of easy blockage and difficult cleaning of the traditional dustproof net are solved, and the air inlet and heat dissipation efficiency of the box body are continuously guaranteed.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, and in particular to a dustproof photovoltaic box-type transformer. Background Technology

[0002] Photovoltaic box-type transformers are core integrated equipment in photovoltaic power generation systems, also known as photovoltaic step-up transformers. They consist of a transformer, high and low voltage switches, protection and monitoring modules pre-installed in a sealed enclosure. Existing photovoltaic box-type transformers still have the following shortcomings in use: Currently, photovoltaic box-type transformers generally employ a structure with perforated enclosures and built-in dust filters, relying on natural ventilation for heat dissipation and basic dust protection. During operation, internal electrical components continuously generate heat, which is transferred through the enclosure's air inlet via convection heat exchange to maintain normal operating temperature. The dust filter traps external dust and debris, preventing foreign objects from entering the enclosure. However, this traditional protective structure has significant drawbacks. With the dust filter constantly exposed, external dust and lint accumulate on the mesh surface and in the mesh gaps, easily causing blockage over time. Obstructed ventilation significantly reduces airflow efficiency inside the enclosure, preventing heat from dissipating and causing abnormally high internal temperatures. This not only reduces the operational stability of electrical components but also accelerates component aging, drastically shortening the overall lifespan of the equipment. Furthermore, existing dust filters only provide dust protection and lack moisture protection. In outdoor environments, moisture and water vapor generated by rainy weather and diurnal temperature variations can easily seep into the enclosure through the air intake ventilation channels. Moisture adhering to the surfaces of precision electrical components such as lines, switches, and transformers can easily cause short circuits due to moisture, corrosion of metal parts, and decreased insulation performance. Frequent electrical faults directly disrupt the normal power supply operation of photovoltaic transformer substations, significantly increasing the probability and extent of equipment failure. This leads to increased workload in subsequent troubleshooting, parts replacement, and overall maintenance, not only raising operation and maintenance costs but also intermittently affecting the continuity of photovoltaic power generation and grid connection, which is detrimental to the long-term stable and efficient operation of photovoltaic power plants. Summary of the Invention

[0003] Given that existing technologies suffer from problems such as dust filters becoming clogged after prolonged use, affecting heat dissipation, and the lack of moisture-proof structures allowing moisture to enter and cause short circuits in internal circuit components, a dustproof photovoltaic box-type transformer is proposed.

[0004] This application provides a dustproof photovoltaic box-type transformer, the purpose of which is to: avoid dust screen blockage, set up a moisture-proof structure, effectively block moisture from entering the box, and reduce the probability of equipment failure and the degree of damage.

[0005] The technical solution of the present invention is as follows: a dustproof photovoltaic box-type transformer, including a box body, a V-shaped photovoltaic panel is provided on the top of the box body, a transformer body is provided inside the box body, a wind cover is also provided inside the box body, a fan is provided inside the wind cover, an air outlet is provided on the side of the box body away from the wind cover, an air inlet is provided on the same side of the box body and the wind cover, and a dustproof and moisture-proof unit is also provided on the air inlet. The dustproof and moisture-proof unit includes a dustproof component and a moisture-proof component installed on the air inlet. The dustproof component includes a dustproof and moisture-proof assembly, an intermittent rotation assembly, and a windshield assembly installed inside the air inlet. The dustproof component is used to remove dust from the gas entering the box, and the moisture-proof component is used to dehumidify the gas entering the box. The dustproof and moisture-proof component includes a dustproof cylinder installed inside the air inlet, a bottom sealing plate installed at the bottom inside the air inlet, the bottom sealing plate and the dustproof cylinder being rotatably connected, a waterproof mesh installed inside the dustproof cylinder, and the waterproof mesh being slidably connected to the housing.

[0006] Furthermore, the intermittent rotation assembly includes a second cavity disposed on the housing, a connecting shaft disposed inside the second cavity, the bottom of the connecting shaft being fixedly connected to the dustproof cylinder, a ratchet disposed at the top of the connecting shaft, and a rotating plate disposed outside the connecting shaft, with a pawl disposed on the rotating plate via a fixed shaft, the pawl being engaged with the ratchet.

[0007] Furthermore, the windshield assembly includes a baffle mounted on the housing, a push rod mounted on the baffle, a windshield plate mounted at one end of the push rod, a rotating rod mounted at the other end of the push rod, the rotating rod being rotatably connected to a rotating plate, and a first spring mounted between the windshield plate and the baffle, the first spring being sleeved on the push rod.

[0008] Furthermore, the dustproof component also includes a dust scraping assembly, a deep cleaning assembly, and a disassembly assembly mounted on the housing; The dust scraping assembly includes a slide groove on the housing, a slider inside the slide groove, a second spring between the slider and the inner wall of the slide groove, a dust scraper on the slider, and one side of the dust scraper is in contact with the outer wall of the dustproof cylinder.

[0009] Furthermore, the deep cleaning component includes a first cavity disposed on the housing, the first cavity being connected to the air inlet, a reciprocating lead screw disposed inside the first cavity, a moving block disposed inside the first cavity, the moving block being threadedly connected to the outer side of the reciprocating lead screw, a cavity disposed on the housing, a motor disposed inside the cavity, the motor output shaft being fixedly connected to the reciprocating lead screw, an mounting block disposed on the moving block, and brush bristles disposed on the mounting block, the brush bristles being in contact with the outer wall of the dustproof cylinder.

[0010] Furthermore, the disassembly and assembly assembly includes two disassembly and assembly slots symmetrically distributed on the mounting block, and two disassembly and assembly blocks symmetrically distributed on the moving block, with the disassembly and assembly blocks being inserted into the inner side of the disassembly and assembly slots.

[0011] Furthermore, the moisture-proof component includes a vibration assembly installed inside the dustproof cylinder, and a drainage assembly is also installed on the housing; The vibration assembly includes a U-shaped plate set at the top of the inner side of the dustproof cylinder, a third spring set between the U-shaped plate and the waterproof mesh, two iron blocks symmetrically distributed at the top of the waterproof mesh, and a magnet set at the top of the inner side of the dustproof cylinder.

[0012] Furthermore, the drainage assembly includes a drainage hole on the housing, a movable rod inside the drainage hole, a sealing plate on the top of the movable rod, a fourth spring between the sealing plate and the drainage hole, the fourth spring being sleeved on the movable rod, and a through hole on the bottom sealing plate, the sealing plate sealing the through hole.

[0013] The beneficial effects of this invention are: The dust scraping and deep cleaning components work in conjunction with the rotating cylindrical dustproof cylinder. Under normal conditions, a second spring pushes the dust scraper plate against the outer wall of the dustproof cylinder, effectively removing accumulated dust in real time. A photovoltaic-powered motor drives a reciprocating screw, causing the brush bristles to move up and down, deeply cleaning the dust inside the mesh. Simultaneously, a disassembly and assembly component allows for quick removal and replacement of the brush bristles, solving the problems of easy clogging and difficult dust removal associated with traditional dustproof meshes, and continuously ensuring efficient air intake and heat dissipation for the enclosure.

[0014] The system utilizes a vibration and drainage assembly to automatically shake off moisture and drain accumulated water, achieving a moisture-proof function. During the rotation of the dustproof cylinder, the magnet and iron block intermittently attract and separate, working in conjunction with a third spring to vibrate the waterproof mesh up and down, shaking off water droplets condensed on the mesh surface and preventing water film from clogging the mesh and obstructing ventilation. Accumulated water gathers on the bottom sealing plate; once it reaches a certain weight, it automatically presses down on the sealing plate, allowing the water to drain through the through-holes and drainage holes. After the water is drained, the system automatically resets and seals, effectively preventing moisture from entering the enclosure and protecting electrical components.

[0015] By combining a windshield assembly with an intermittent rotation component, the dustproof cylinder achieves unidirectional intermittent rotation driven solely by wind power, requiring no additional energy consumption. Natural wind blows, compressing the first spring of the windshield, causing the rotating plate to swing back and forth. Through the unidirectional engagement of the pawl and ratchet, the dustproof cylinder is driven to rotate and reset in only one direction, achieving intermittent self-rotation dust removal. Self-cleaning can be completed using ambient wind power. Powered by a top-mounted V-shaped photovoltaic panel auxiliary device, the overall energy consumption is extremely low, enabling long-term stable automatic dust removal, suitable for long-term unattended operation scenarios of outdoor photovoltaic transformer substations. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 This is a schematic diagram of the side sectional view of the housing structure of the present invention; Figure 4 This is a schematic diagram of the dustproof and moisture-proof unit structure of the present invention; Figure 5 This is a cross-sectional view of the dustproof and moisture-proof unit of the present invention; Figure 6 This is a schematic diagram of the intermittent rotation component structure of the present invention; Figure 7 This is an exploded view of the intermittent rotation component of the present invention; Figure 8 This is an exploded view of the dust scraper assembly of the present invention; Figure 9 This is a schematic diagram of the deep cleaning component structure of the present invention; Figure 10 This is an exploded view of the deep cleaning component of the present invention; Figure 11 This is a schematic diagram of the internal structure of the first cavity of the present invention; Figure 12 This is a schematic diagram of the vibration component structure of the present invention; Figure 13 This is a schematic diagram of the drainage component structure of the present invention.

[0017] In the picture: 1. Housing; 11. V-shaped photovoltaic panel; 12. Transformer body; 13. Fan cover; 14. Fan; 15. Air outlet; 16. Air inlet; 2. Dustproof and moisture-proof components; 21. Dustproof cylinder; 22. Bottom sealing plate; 23. Waterproof mesh; 3. Intermittent rotation component; 31. Connecting shaft; 32. Ratchet; 33. Rotating plate; 34. Pawl; 4. Windshield component; 41. Baffle; 42. Push rod; 43. Windshield; 44. Rotating rod; 45. First spring; 5. Dust scraper component; 51 52. Slider; 53. Second spring; 6. Dust scraper; 6. Deep cleaning assembly; 61. First cavity; 62. Reciprocating screw; 63. Moving block; 64. Motor; 65. Mounting block; 66. Brush bristles; 7. Disassembly assembly; 71. Disassembly groove; 72. Disassembly block; 8. Vibration assembly; 81. U-shaped plate; 82. Third spring; 83. Iron block; 84. Magnet; 9. Drainage assembly; 91. Drainage hole; 92. Moving rod; 93. Sealing plate; 94. Fourth spring; 95. Through hole. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Example 1, referring to Figures 1-5 The first embodiment of the present invention provides a dustproof photovoltaic box-type transformer, including a box body 1, a V-shaped photovoltaic panel 11 fixedly connected to the top of the box body 1, a transformer body 12 fixedly connected to the inside of the box body 1, a fan shroud 13 fixedly connected to the inside of the box body 1, a fan 14 fixedly connected to the inside of the fan shroud 13, an air outlet 15 on the side of the box body 1 away from the fan shroud 13, and an air inlet 16 on the same side of the box body 1 and the fan shroud 13. It also includes a dustproof and moisture-proof unit installed on the air inlet 16; the dustproof and moisture-proof unit includes a dustproof component and a dustproof... The dustproof and moisture-proof components include a dustproof and moisture-proof assembly 2, an intermittent rotation assembly 3, and a windshield assembly 4 installed inside the air inlet 16. The dustproof component is used to remove dust from the gas entering the housing 1, and the moisture-proof component is used to dehumidify the gas entering the housing 1. The dustproof and moisture-proof assembly 2 includes a dustproof cylinder 21 rotatably connected to the inside of the air inlet 16. A bottom sealing plate 22 is fixedly connected to the bottom of the inside of the air inlet 16. The bottom sealing plate 22 and the dustproof cylinder 21 are rotatably connected. A waterproof mesh 23 is rotatably connected to the inside of the dustproof cylinder 21. The waterproof mesh 23 is slidably connected to the housing 1.

[0020] Specifically, the V-shaped photovoltaic panel 11 fixed to the top of the housing 1 can autonomously absorb solar energy and convert it into electrical energy, continuously powering the fan 14 inside the shroud 13 without the need for external power supply, achieving energy-saving self-driven heat dissipation. After the fan 14 is powered on and started, under the guidance of the shroud 13, a negative pressure air duct is formed inside the housing 1. Outside air flows in through the air inlet 16 of the housing 1, and the heated air is discharged through the air outlet 15, continuously carrying away the heat generated by the transformer body 12, completing the circulating ventilation and heat dissipation. During the air intake process, the dustproof and moisture-proof unit at the air inlet 16 works simultaneously, achieving dual protection against dust and moisture. Under the action of the dustproof cylinder 21, the air entering the housing 1 can be dusted, effectively preventing dust from entering the housing 1. Under the action of the waterproof mesh 23, the air entering the housing 1 can be dehumidified, effectively preventing moisture from entering the housing 1 and corroding the circuit components inside the housing 1. The dust collector 21 is rotatable, and the rotation of the dust collector 21 can scrape off the dust on its outer wall, preventing dust from accumulating and clogging the mesh of the dust collector 21. Furthermore, the cylindrical structure of the dust collector 21 increases the filtration area, significantly improving the gas contact filtration area, increasing the air intake capacity, and improving filtration efficiency. This ensures efficient heat dissipation and solves the problems of traditional housing 1, which is prone to dust accumulation and moisture, greatly reducing equipment failure rate and subsequent maintenance costs.

[0021] Reference Figure 6 and Figure 7The intermittent rotating assembly 3 includes a second cavity opened on the housing 1. A connecting shaft 31 is rotatably connected to the inside of the second cavity. The bottom of the connecting shaft 31 is fixedly connected to the dustproof cylinder 21. A ratchet 32 ​​is fixedly connected to the top of the connecting shaft 31. A rotating plate 33 is also rotatably connected to the outside of the connecting shaft 31. A pawl 34 is rotatably connected to the rotating plate 33 through a fixed shaft. The pawl 34 is engaged with the ratchet 32.

[0022] Specifically, a torsion spring is provided between the pawl 34 and the rotating plate 33, and the torsion spring is sleeved on the fixed shaft. When the rotating plate 33 rotates clockwise, it drives the pawl 34 to rotate clockwise. The pawl 34 meshes with the ratchet 32, causing the pawl 34 to rotate against the teeth of the ratchet 32, driving the ratchet 32 ​​to rotate, which in turn causes the connecting shaft 31 to rotate the dust cover 21. When the rotating plate 33 rotates counterclockwise, it drives the pawl 34 to rotate counterclockwise, causing the pawl 34 to rotate along the teeth of the ratchet 32. Under the action of the fixed shaft and the torsion spring, the pawl 34 rotates on the rotating plate 33. At this time, the ratchet 32 ​​does not rotate. When the rotating plate 33 reciprocates, the ratchet 32 ​​rotates intermittently under the action of the pawl 34, driving the dust cover 21 to rotate intermittently, which can effectively clean the dust on the dust cover 21.

[0023] Reference Figure 6 and Figure 7 The windshield assembly 4 includes a baffle 41 fixedly connected to the housing 1. A push rod 42 is slidably connected to the baffle 41. One end of the push rod 42 is fixedly connected to a windshield 43, and the other end of the push rod 42 is rotatably connected to a rotating rod 44. The rotating rod 44 is rotatably connected to a rotating plate 33. A first spring 45 is fixedly connected between the windshield 43 and the baffle 41. The first spring 45 is sleeved on the push rod 42.

[0024] Specifically, when there is wind, the wind blows on the wind deflector 43, squeezing it and the first spring 45. This causes the push rod 42 to move, which in turn moves the rotating rod 44, causing the rotating plate 33 to rotate. Since the push rod 42 moves linearly while the rotating plate 33 rotates circumferentially, the rotating rod 44 rotates when the push rod 42 pushes it, ensuring that there is no interference between the rotating plate 33 and the rotating rod 44. When the wind disappears, the first spring 45 returns to its original position, causing the push rod 42 to move back to its original position, which in turn causes the rotating plate 33 to rotate back to its original position. This means that when there is wind, the rotating plate 33 rotates once, and when the wind disappears, the rotating plate 33 rotates back to its original position.

[0025] Example 2, refer to Figures 8-11This is the second embodiment of the present invention, which differs from the first embodiment in that: the dustproof component further includes a dust scraping assembly 5, a deep cleaning assembly 6, and a disassembly assembly 7 installed on the housing 1; the dust scraping assembly 5 includes a slide groove opened on the housing 1, a slider 51 is slidably connected to the inner side of the slide groove, a second spring 52 is fixedly connected between the slider 51 and the inner wall of the slide groove, a dust scraper 53 is fixedly connected to the slider 51, and one side of the dust scraper 53 is in contact with the outer wall of the dustproof cylinder 21.

[0026] Specifically, under the action of the second spring 52, the slider 51 slides towards the dustproof cylinder 21, causing the dust scraper 53 to move towards the dustproof cylinder 21, so that the dust scraper 53 fits against the outer wall of the dustproof cylinder 21. When the dustproof cylinder 21 rotates, under the action of the ratchet 32 ​​and the pawl 34, the dustproof cylinder 21 always rotates clockwise, scraping off the dust on the dustproof cylinder 21 and preventing the dust from clogging the mesh of the dustproof cylinder 21.

[0027] Reference Figures 9-11 The deep cleaning component 6 includes a first cavity 61 formed on the housing 1, which is connected to the air inlet 16. A reciprocating screw 62 is rotatably connected to the inside of the first cavity 61. A moving block 63 is also slidably connected to the inside of the first cavity 61. The moving block 63 is threadedly connected to the outside of the reciprocating screw 62. A cavity is also formed on the housing 1. A motor 64 is fixedly connected to the inside of the cavity. The output shaft of the motor 64 is fixedly connected to the reciprocating screw 62. An mounting block 65 is also provided on the moving block 63. Brush bristles 66 are fixedly connected to the mounting block 65. The brush bristles 66 are in contact with the outer wall of the dustproof cylinder 21.

[0028] Specifically, the motor 64 is electrically connected to the V-shaped photovoltaic panel 11. The electricity generated by the V-shaped photovoltaic panel 11 powers the motor 64. When the motor 64 starts, it drives the reciprocating screw 62 to rotate. Under the action of the first cavity 61, the moving block 63 moves up and down inside the first cavity 61, driving the mounting block 65 to move up and down. Through the movement of the bristles 66, the outer wall of the dustproof cylinder 21 is deeply cleaned, effectively removing dust from the mesh of the dustproof cylinder 21. When dust adheres to the bristles 66, the scraper 53 can be pushed, causing the slider 51 to slide inside the groove, opening the first cavity 61, disassembling the mounting block 65 and the moving block 63, and removing the bristles 66 from inside the first cavity 61, making it convenient to clean the dust on the bristles 66 or replace them with new bristles 66.

[0029] Reference Figure 10 The disassembly and assembly component 7 includes two disassembly and assembly slots 71 symmetrically distributed on the mounting block 65, and two disassembly and assembly blocks 72 symmetrically distributed and fixedly connected on the moving block 63. The disassembly and assembly blocks 72 are inserted into the inner side of the disassembly and assembly slots 71.

[0030] Specifically, the disassembly block 72 and the disassembly slot 71 are inserted into each other to facilitate the disassembly of the moving block 63 and the mounting block 65, and at the same time, facilitate the subsequent installation of the moving block 63 and the mounting block 65. The rest of the structure is the same as that of Embodiment 1.

[0031] Example 3, referring to Figure 12 and Figure 13 This is the third embodiment of the present invention, which differs from the second embodiment in that: the moisture-proof component includes a vibration assembly 8 installed inside the dustproof cylinder 21, and a drainage assembly 9 is also installed on the housing 1; the vibration assembly 8 includes a U-shaped plate 81 set at the top of the inside of the dustproof cylinder 21, a third spring 82 is fixedly connected between the U-shaped plate 81 and the waterproof mesh 23, two iron blocks 83 are fixedly connected symmetrically at the top of the waterproof mesh 23, and a magnet 84 is fixedly connected to the top of the inside of the dustproof cylinder 21.

[0032] Specifically, when the dustproof cylinder 21 rotates, it causes the magnet 84 to rotate as well. Under the action of the iron block 83, the magnet 84 generates a suction force, attracting the iron block 83. This causes the waterproof mesh 23 to move upward, compressing the third spring 82. When the magnet 84 rotates away from the iron block 83, the iron block 83 loses its suction force. Under the action of the third spring 82, the waterproof mesh 23 moves downward. As the dustproof cylinder 21 rotates, the waterproof mesh 23 vibrates up and down under the action of the third spring 82, shaking off the small water droplets that have condensed on the waterproof mesh 23. This prevents the small water droplets from adhering to the waterproof mesh 23 and clogging the mesh openings, thus affecting the entry of gas into the housing 1.

[0033] Reference Figure 2 and Figure 3 The drainage component 9 includes a drainage hole 91 opened on the housing 1. A moving rod 92 is slidably connected to the inside of the drainage hole 91. A sealing plate 93 is fixedly connected to the top of the moving rod 92. A fourth spring 94 is fixedly connected between the sealing plate 93 and the drainage hole 91. The fourth spring 94 is sleeved on the moving rod 92. A through hole 95 is opened on the bottom sealing plate 22. The sealing plate 93 blocks the through hole 95.

[0034] Specifically, the inner diameter of the through hole 95 is smaller than the inner diameter of the drain hole 91. The sealing plate 93 can block the through hole 95, but cannot block the drain hole 91. When water droplets on the waterproof mesh 23 fall onto the bottom sealing plate 22, the water droplets gather together to form a large water droplet. When the weight of the large water droplet is greater than the elastic force of the fourth spring 94, it will compress the sealing plate 93 and move it downwards, causing the moving rod 92 to move downwards. The sealing plate 93 will no longer block the through hole 95, allowing the large water droplet to flow down from the through hole 95 and be discharged from the drain hole 91. After the large water droplet flows down, the weight of the water droplet on the bottom sealing plate 22 becomes smaller and insufficient to compress the fourth spring 94. The sealing plate 93 will move upwards to reset and reseal the through hole 95, ensuring the airtightness of the dustproof cylinder 21. The remaining structure is the same as that in Embodiment 2.

[0035] Based on embodiments 1-3, the working principle of this invention is as follows: The dustproof cylinder 21 prevents dust from entering the housing 1. The waterproof mesh 23 prevents moisture from entering the housing 1. When there is wind, the wind force compresses the wind baffle 43, causing the push rod 42 to be compressed, which in turn moves the rotating rod 44, causing the rotating plate 33 to rotate, which in turn rotates the pawl 34. At this time, the pawl 34 rotates against the teeth of the ratchet 32, which in turn rotates the ratchet 32, causing the connecting shaft 31 to rotate the dustproof cylinder 21. Under the action of the dust scraper 53, the dust on the dustproof cylinder 21 is scraped off. Under the action of the second spring 52, the dust scraper 53 remains in contact with the dustproof cylinder 21. The motor 64 is started, driving the reciprocating screw 62 to rotate, causing the moving block 63 to move up and down inside the first cavity 61, which in turn moves the brush bristles 66 to deeply clean the dust inside the mesh of the dustproof cylinder 21. The dustproof cylinder 21 rotates, causing the magnet 84 to rotate as well. Under the action of the iron block 83, the magnet 84 and the iron block 83 attract each other, causing the waterproof mesh 23 to move upward and compress the third spring 82. When the magnet 84 and the iron block 83 separate, the third spring 82 causes the waterproof mesh 23 to move downward, making the waterproof mesh 23 vibrate up and down, which helps to shake off the water droplets on the waterproof mesh 23. The shaken-off water droplets squeeze the sealing plate 93, compressing the fourth spring 94, making the through hole 95 and the drain hole 91 connected, allowing the water droplets on the bottom sealing plate 22 to be discharged from the drain hole 91.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A dustproof photovoltaic box-type transformer, comprising a box body (1), a V-shaped photovoltaic panel (11) disposed on the top of the box body (1), a transformer body (12) disposed inside the box body (1), a hood (13) disposed inside the box body (1), a fan (14) disposed inside the hood (13), an air outlet (15) disposed on the side of the box body (1) away from the hood (13), and an air inlet (16) disposed on the same side of the box body (1) and the hood (13), characterized in that: It also includes a dustproof and moisture-proof unit installed on the air inlet (16); The dustproof and moisture-proof unit includes a dustproof component and a moisture-proof component installed on the air inlet (16). The dustproof component includes a dustproof and moisture-proof assembly (2), an intermittent rotation assembly (3), and a windshield assembly (4) installed on the inner side of the air inlet (16). The dustproof component is used to remove dust from the gas entering the box (1), and the moisture-proof component is used to dehumidify the gas entering the box (1). The dustproof and moisture-proof component (2) includes a dustproof cylinder (21) set inside the air inlet (16), a bottom sealing plate (22) is set at the bottom inside the air inlet (16), the bottom sealing plate (22) and the dustproof cylinder (21) are rotatably connected, a waterproof mesh (23) is set inside the dustproof cylinder (21), and the waterproof mesh (23) and the box body (1) are slidably connected.

2. The dustproof photovoltaic box-type transformer according to claim 1, characterized in that: The intermittent rotation assembly (3) includes a second cavity disposed on the housing (1). A connecting shaft (31) is disposed inside the second cavity. The bottom of the connecting shaft (31) is fixedly connected to the dustproof cylinder (21). A ratchet (32) is disposed at the top of the connecting shaft (31). A rotating plate (33) is also disposed outside the connecting shaft (31). A pawl (34) is disposed on the rotating plate (33) through a fixed shaft. The pawl (34) is engaged with the ratchet (32).

3. The dustproof photovoltaic box-type transformer according to claim 2, characterized in that: The windshield assembly (4) includes a baffle (41) mounted on the housing (1), a push rod (42) mounted on the baffle (41), a windshield (43) mounted on one end of the push rod (42), a rotating rod (44) mounted on the other end of the push rod (42), the rotating rod (44) being rotatably connected to the rotating plate (33), and a first spring (45) mounted between the windshield (43) and the baffle (41), the first spring (45) being sleeved on the push rod (42).

4. The dustproof photovoltaic box-type transformer according to claim 1, characterized in that: The dustproof components also include a dust scraping assembly (5), a deep cleaning assembly (6), and a disassembly assembly (7) disposed on the housing (1). The dust scraper assembly (5) includes a slide groove on the housing (1), a slider (51) is provided on the inner side of the slide groove, a second spring (52) is provided between the slider (51) and the inner wall of the slide groove, a dust scraper (53) is provided on the slider (51), and one side of the dust scraper (53) is attached to the outer wall of the dustproof cylinder (21).

5. The dustproof photovoltaic box-type transformer according to claim 4, characterized in that: The deep cleaning component (6) includes a first cavity (61) disposed on the housing (1), the first cavity (61) being connected to the air inlet (16), a reciprocating screw (62) being disposed inside the first cavity (61), a moving block (63) being disposed inside the first cavity (61), the moving block (63) being threadedly connected to the outside of the reciprocating screw (62), a cavity being disposed on the housing (1), a motor (64) being disposed inside the cavity, the output shaft of the motor (64) being fixedly connected to the reciprocating screw (62), an mounting block (65) being disposed on the moving block (63), bristles (66) being disposed on the mounting block (65), and the bristles (66) being attached to the outer wall of the dustproof cylinder (21).

6. The dustproof photovoltaic box-type transformer according to claim 5, characterized in that: The disassembly and assembly assembly (7) includes two disassembly and assembly slots (71) symmetrically distributed on the mounting block (65), and two disassembly and assembly blocks (72) symmetrically distributed on the moving block (63). The disassembly and assembly blocks (72) are inserted into the inside of the disassembly and assembly slots (71).

7. The dustproof photovoltaic box-type transformer according to claim 1, characterized in that: The moisture-proof component includes a vibration component (8) installed inside the dustproof cylinder (21), and a drainage component (9) is also installed on the box body (1). The vibration assembly (8) includes a U-shaped plate (81) set on the top of the inner side of the dustproof cylinder (21), a third spring (82) set between the U-shaped plate (81) and the waterproof mesh (23), two iron blocks (83) symmetrically distributed on the top of the waterproof mesh (23), and a magnet (84) set on the top of the inner side of the dustproof cylinder (21).

8. The dustproof photovoltaic box-type transformer according to claim 7, characterized in that: The drainage assembly (9) includes a drainage hole (91) provided on the housing (1), a moving rod (92) provided inside the drainage hole (91), a sealing plate (93) provided on the top of the moving rod (92), a fourth spring (94) provided between the sealing plate (93) and the drainage hole (91), the fourth spring (94) being sleeved on the moving rod (92), and a through hole (95) provided on the bottom sealing plate (22), the sealing plate (93) sealing the through hole (95).

Images