Photovoltaic power station inverter fireproof device
By employing a two-stage fire suppression mechanism involving fire blanket coverage and fire extinguishing agent spraying, the pollution and corrosion problems of inverters caused by traditional fire suppression methods are solved, achieving efficient fire suppression and fire control, and protecting the inverter equipment.
Patent Information
- Application Number
- CN202511333652.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2025-11-18
AI Technical Summary
Traditional fire extinguishing methods pollute and corrode inverters, affecting the equipment's ability to resume power generation, and pose a significant risk of fire spreading.
The fire is extinguished by covering the fire with a fire blanket, which combines a two-stage fire extinguishing mechanism with the spraying of extinguishing agents. The fire blanket physically isolates the oxygen to suffocate the flames, while the spraying of extinguishing agents provides subsequent cooling and prevents the fire from spreading.
To achieve efficient fire suppression, protect the internal components of the inverter, avoid secondary damage, and improve the reliability of fire suppression and equipment protection.
Smart Images
Figure CN120960690A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a fire prevention device for photovoltaic power plant inverters, belonging to the field of photovoltaic inverter protection technology. Background Technology
[0002] Photovoltaic power generation, as a clean and renewable energy utilization method, has been widely applied and developed in recent years. Photovoltaic power plants convert solar energy into direct current (DC) energy through a large number of photovoltaic modules, which is then collected by combiner boxes and transmitted to the "heart" of the power plant—the inverter.
[0003] Inverters pose a fire risk under conditions such as prolonged high-load operation, component aging, internal short circuits, or improper maintenance. In the event of a fire, the internal plastic components, capacitor electrolytes, and electrical wiring become flammable, causing the fire to spread rapidly. Traditional fire suppression methods typically employ gaseous extinguishing systems (such as heptafluoropropane) or ultra-fine dry powder automatic extinguishing devices, spraying extinguishing agents to completely cover the entire transformer substation or equipment compartment. However, these methods have significant drawbacks: First, the sprayed extinguishing agents (especially dry powder) can severely contaminate and corrode the delicate electronic components inside the inverter, rendering the expensive inverter essentially unusable even after the fire is extinguished, resulting in substantial secondary economic losses. Second, some gaseous extinguishing agents require prolonged sealing in enclosed spaces after release, severely hindering the rapid restoration of power generation and causing power loss. Therefore, improvements are urgently needed. Summary of the Invention
[0004] In order to overcome the shortcomings of the prior art, the present invention designs a fire prevention device for photovoltaic power station inverters, which extinguishes fires by covering the inverter with a fire blanket. This not only achieves a good fire extinguishing effect, but also prevents the spread of fire, and can also protect the photovoltaic panels in advance.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A fireproof device for a photovoltaic power station inverter includes a base plate, a mounting platform is fixedly provided on the top of the base plate, and the inverter body is installed on the top of the mounting platform. The top of the base plate is also equipped with protective covers and fire extinguishing cover mechanisms installed at intervals and in parallel. The top of the protective cover is inclined towards the flipping mechanism and the protective cover covers the top of the inverter body. The fire extinguishing cover mechanism includes a drive slide rail, a flipping mechanism that is slidably mounted on the top of the drive slide rail and driven by the drive slide rail, and a fire extinguishing blanket mounted on the flipping mechanism. A temperature sensor is installed on the inner wall of the protective cover. The temperature sensor, the drive slide rail, and the flipping mechanism are all electrically connected to the host computer.
[0006] Furthermore, a heat dissipation window is provided at the top of the side of the protective cover away from the flipping mechanism. A sliding plate is movably covered at the heat dissipation window. The sliding plate is slidably connected to the protective cover through a second drive slide rail on the protective cover. The second drive slide rail is used to drive the sliding plate to slide downward and open the heat dissipation window.
[0007] Furthermore, a lifting plate is provided on the side of the sliding plate. The lifting plate is connected to the sliding plate through a lifting mechanism. The lifting mechanism is used to drive the lifting plate to lift upward when the sliding plate slides downward. Multiple nozzles are installed on the side of the lifting plate near the heat dissipation window. The nozzles are connected to an external fire extinguishing material pumping mechanism through pipes.
[0008] Furthermore, the lifting mechanism includes a hinge rod one, one end of which is hinged to the side of the sliding plate, and the other end of which is hinged to a hinge rod two. The free end of the hinge rod two is integrally fixedly connected to a hinge rod three, and the hinge rod two and the hinge rod three are hinged together at the side wall of the protective cover. The free end of the hinge rod three is vertically rotatably sleeved with a sleeve shaft, and the free end of the sleeve shaft is rotatably sleeved with a hinge rod four. The free end of the hinge rod four is hinged to the side of the lifting plate away from the heat dissipation window. The bottom end of the lifting plate is vertically fixedly connected to a fixed shaft, and the side wall of the protective cover is vertically fixedly connected to a limit post. The fixed shaft is vertically slidably inserted through the limit post.
[0009] Furthermore, the flipping mechanism includes a support platform, a U-shaped mounting frame, and a reciprocating flipping assembly for driving the U-shaped mounting frame to flip. Mounting frame one and mounting frame two are vertically spaced at the top of the support platform. A motor is mounted on mounting frame one, and the motor is driven by a drive shaft. The drive shaft rotates through the top of mounting frame one and then is driven by the reciprocating flipping assembly. A flipping rod is rotatably installed at the top of the second mounting bracket. One end of the flipping rod is connected to the reciprocating flipping assembly, and a U-shaped mounting bracket is fixedly installed at the other end of the flipping rod. The U-shaped groove of the U-shaped mounting bracket faces the inverter body, and the fire blanket is installed in the U-shaped groove of the U-shaped mounting bracket.
[0010] Furthermore, the reciprocating flipping assembly includes a guide rail horizontally installed on the side of the mounting frame two away from the U-shaped mounting frame, a sliding bar slidably installed on the guide rail on the side away from the mounting frame two, a meshing rack disposed at the top of the sliding bar, a meshing gear meshing with the meshing rack, a strip-shaped guide ring vertically fixedly installed on the side of the sliding bar away from the guide rail, a sliding block slidably sleeved in the strip-shaped guide ring, and a swing plate. One end of the swing plate is fixedly sleeved with the drive shaft, and the other end of the swing plate is vertically hinged to a hinge shaft. The free end of the hinge shaft is rotatably connected to the side of the sliding block away from the guide rail. A flipping shaft is fixedly sleeved on the inner ring of the meshing gear. The free end of the flipping shaft rotatably passes through the top of the mounting frame two and is fixedly sleeved with the flipping rod.
[0011] Furthermore, two slide grooves are symmetrically arranged on the side of the protective cover away from the flipping mechanism, and a second drive slide rail is installed in each of the two slide grooves.
[0012] Furthermore, multiple fire blankets are installed at intervals within the U-shaped groove of the U-shaped mounting bracket.
[0013] Furthermore, a limiting block is fixedly connected to one end of the fixed shaft that passes through the limiting post.
[0014] Furthermore, the hinge rod is hinged to the top side of the sliding plate.
[0015] Compared with the prior art, the present invention has the following features and beneficial effects: 1. In this invention, the fire blanket isolates oxygen and suffocates the flame by physically covering it, completely avoiding contact between the extinguishing agent (especially corrosive and polluting dry powder or chemical gas) and the precision electronic components inside the inverter. Moreover, after the open flame is extinguished, only the fire blanket needs to be replaced and the ignition point needs to be inspected, thus avoiding secondary losses caused by the fire extinguishing method itself.
[0016] 2. In this invention, the two-stage fire extinguishing mechanism of first covering and then spraying significantly improves fire extinguishing efficiency and reliability. The fire blanket directly acts on the fire source, achieving efficient and non-destructive fire extinguishing. The subsequent spraying of the extinguishing agent plays a role in consolidation and external protection, which can further cool down the area to prevent reignition, and also suppress any gaps or external areas that the fire blanket may not have fully covered, preventing the fire from spreading outward and protecting surrounding equipment.
[0017] 3. In this invention, the protective cover, the heat dissipation window on the top of the protective cover and its sliding plate can be opened or closed according to the temperature signal on a normal day to play a role in heat dissipation, thereby reducing the risk of fire caused by overheating from the source. In the event of a fire, this normal heat dissipation structure is transformed into part of the emergency fire extinguishing function. Attached Figure Description
[0018] Figure 1 This is a side view of the present invention; Figure 2 This is a three-dimensional structural diagram from a first perspective of the present invention; Figure 3 yes Figure 2 A magnified schematic diagram of the structure at point A; Figure 4 This is a three-dimensional structural schematic diagram of the invention from a second perspective; Figure 5 This is a three-dimensional structural schematic diagram of the flipping mechanism of the present invention from a first perspective; Figure 6 yes Figure 5 A magnified schematic diagram of the structure at point B; Figure 7 This is a three-dimensional structural diagram of the flipping mechanism of the present invention from a second perspective.
[0019] The attached diagrams are labeled as follows: 1. Base plate; 2. Protective cover; 3. Lifting mechanism; 4. Fire blanket; 401. U-shaped mounting bracket; 5. Tilting mechanism; 6. Drive rail one; 7. Mounting platform; 701. Inverter body; 201. Sliding plate; 202. Slide groove; 203. Drive rail two; 301. Hinge rod one; 302. Hinge rod two; 303. Hinge rod three; 304. Sleeve shaft; 305. Hinge rod four; 306. Lifting... Lifting plate; 307, fixed shaft; 3071, limiting block; 308, limiting post; 501, support platform; 502, mounting bracket one; 503, motor; 504, drive shaft; 505, swing plate; 5051, hinge shaft; 5052, sliding block; 506, strip guide ring; 507, sliding bar; 508, meshing gear; 5081, flipping shaft; 509, guide rail; 510, flipping rod; 511, mounting bracket two. Detailed Implementation
[0020] The present invention will now be described in more detail with reference to the embodiments.
[0021] Please see Figures 1 to 7 The photovoltaic power station inverter fire prevention device of this embodiment includes a base plate 1, a mounting platform 7 is fixedly installed on the top of the base plate 1, and the inverter body 701 is installed on the top of the mounting platform 7. The top of the base plate 1 is also equipped with protective covers 2 and fire extinguishing cover mechanisms at intervals and parallel to each other. The top of the protective covers 2 is inclined towards the flipping mechanism 5 and the protective covers 2 cover the top of the inverter body 701. The fire extinguishing cover mechanism includes a drive slide rail 6, a flipping mechanism 5 that is slidably mounted on the top of the drive slide rail 6 and driven by the drive slide rail 6, and a fire extinguishing blanket 4 mounted on the flipping mechanism 5. A temperature sensor is installed on the inner wall of the protective cover 2. The temperature sensor, the drive slide rail 6, and the flipping mechanism 5 are all electrically connected to the host computer.
[0022] A heat dissipation window is provided at the top of the side of the protective cover 2 away from the flipping mechanism 5. A sliding plate 201 is movably covered at the heat dissipation window. The sliding plate 201 is slidably connected to the protective cover 2 via a second drive slide rail 203 set on the protective cover 2. The second drive slide rail 203 is used to drive the sliding plate 201 to slide downward and open the heat dissipation window.
[0023] In this embodiment, a photovoltaic panel is installed on the top of the sliding plate 201. During normal use, the photovoltaic panel absorbs solar energy. In the event of a fire in the inverter, the sliding plate 201 can quickly move away with the photovoltaic panel to prevent it from being burned.
[0024] During normal operation, the protective cover 2 covers the top of the inverter body 701 to protect it from wind and rain.
[0025] When the temperature sensor detects that the temperature exceeds the threshold preset by the host computer, the heat dissipation window on the top of the protective cover 2 is opened, and the host computer controls the flipping mechanism 5 to flip to a suitable angle. Then, the drive slide rail 6 drives the flipping mechanism 5 to cover the fire blanket 4 on the inverter body 701, thus achieving initial fire extinguishing.
[0026] Furthermore, a lifting plate 306 is provided on the side of the sliding plate 201. The lifting plate 306 is connected to the sliding plate 201 through a lifting mechanism 3. The lifting mechanism 3 is used to lift the lifting plate 306 upward when the sliding plate 201 slides downward. Multiple nozzles are installed on the side of the lifting plate 306 near the heat dissipation window. The nozzles are connected to an external fire extinguishing material pumping mechanism through pipes.
[0027] The lifting mechanism 3 includes a hinge rod 301, one end of which is hinged to the side of the sliding plate 201, and the other end of which is hinged to a hinge rod 302. The free end of the hinge rod 302 is integrally and fixedly connected to a hinge rod 303, and the hinge rod 302 and the hinge rod 303 are connected at the side wall of the protective cover 2. The free end of the hinge rod 303 is vertically rotatably sleeved with a sleeve shaft 304, and the free end of the sleeve shaft 304 is rotatably sleeved with a hinge rod 305. The free end of the hinge rod 305 is hinged to the side of the lifting plate 306 away from the heat dissipation window. The bottom end of the lifting plate 306 is vertically and fixedly connected to a fixed shaft 307, and the side wall of the protective cover 2 is vertically and fixedly connected to a limit post 308. The fixed shaft 307 is vertically and slidably inserted through the limit post 308.
[0028] When the second drive rail 203 drives the sliding plate 201 to slide downward, the first hinge rod 301 moves synchronously. The first hinge rod 301 can drive the second hinge rod 302 and the third hinge rod 303 to swing. The free end of the third hinge rod 303 drives the fourth hinge rod 305 to move through the sleeve shaft 304.
[0029] Because the lifting plate 306 is limited by the limiting post 308 and the fixed shaft 307, when the hinge rod 305 moves, it can drive the lifting plate 306 to lift upward, and then the nozzle on the inner side of the lifting plate 306 can spray fire extinguishing agent onto the inverter body 701. Since the fire blanket 4 has been placed on the inverter body 701 at this time, the fire extinguishing agent will not damage the inverter body 701 and can prevent the fire from spreading and reduce the temperature.
[0030] Furthermore, the flipping mechanism 5 includes a support platform 501, a U-shaped mounting bracket 401, and a reciprocating flipping assembly for driving the U-shaped mounting bracket 401 to flip. Mounting bracket 1 502 and mounting bracket 2 511 are vertically spaced at the top of the support platform 501. A motor 503 is mounted on mounting bracket 1 502. The motor 503 is driven by a drive shaft 504. The drive shaft 504 rotates through the top of mounting bracket 1 502 and is then driven by the reciprocating flipping assembly. The top of the mounting bracket 511 is rotatably mounted with a flip rod 510. One end of the flip rod 510 is connected to the reciprocating flip assembly, and the other end of the flip rod 510 is fixedly mounted with a U-shaped mounting bracket 401. The U-shaped groove of the U-shaped mounting bracket 401 is set towards the inverter body 701, and the fire blanket 4 is installed in the U-shaped groove of the U-shaped mounting bracket 401.
[0031] The reciprocating tilting assembly includes a guide rail 509 horizontally mounted on the side of the mounting bracket 2 511 away from the U-shaped mounting bracket 401, a sliding bar 507 slidably mounted on the guide rail 509 away from the mounting bracket 2 511, a meshing rack at the top of the sliding bar 507, a meshing gear 508 meshing with the meshing rack, a strip-shaped guide ring 506 vertically fixedly mounted on the side of the sliding bar 507 away from the guide rail 509, a sliding block 5052 slidably sleeved in the strip-shaped guide ring 506, and a swing plate 505. One end of the swing plate 505 is fixedly sleeved with the drive shaft 504, and the other end of the swing plate 505 is vertically hinged to a hinge shaft 5051. The free end of the hinge shaft 5051 is rotatably connected to the side of the sliding block 5052 away from the guide rail 509. The inner ring of the meshing gear 508 is fixedly sleeved with a tilting shaft 5081. The free end of the tilting shaft 5081 rotates through the top of the mounting bracket 2 511 and is fixedly sleeved with a tilting rod 510.
[0032] Specifically, when the motor 503 starts, it drives the drive shaft 504 to rotate, and the swing plate 505, which is fixedly connected to the drive shaft 504, rotates together.
[0033] The hinge shaft 5051 at the other end of the swing plate 505 converts the circular motion into horizontal reciprocating linear motion through the sliding block 5052 and the strip guide ring 506, thereby pushing the sliding bar 507 to slide back and forth along the guide rail 509.
[0034] The meshing rack at the top of the sliding bar 507 moves with the guide rail 509 and drives the meshing gear 508 that meshes with the sliding bar 507 to rotate alternately in both directions.
[0035] The meshing gear 508 transmits the rotational motion to the flipping rod 510 through the internal flipping shaft 5081, which in turn drives the U-shaped mounting bracket 401 fixed to the end of the flipping rod 510 and the fire blanket 4 on it to reciprocate at a certain angle, thereby completing the action of covering and placing the fire blanket 4.
[0036] Normally, the fire blanket 4 is placed vertically or rotated periodically to prevent debris from remaining on the fire blanket 4 for a long time and affecting its fire extinguishing effect.
[0037] When the inverter body 701 catches fire, the fire blanket 4 flips to a horizontal position and quickly covers the inverter body 701 to extinguish the fire.
[0038] Furthermore, two slide grooves 202 are symmetrically arranged on the side of the protective cover 2 away from the flipping mechanism 5. Each slide groove 202 is equipped with a second drive slide rail 203. The two symmetrically arranged drive slide rails 203 ensure the stable movement of the sliding plate 201.
[0039] Furthermore, two fire blankets 4 are installed in the U-shaped groove of the U-shaped mounting bracket 401 at intervals. The multiple fire blankets 4 can be flipped and installed at any time. When the first fire blanket 4 is damaged during the fire extinguishing process, the spare fire blanket 4 can be flipped to the working position through the flipping mechanism 5 to continue the fire extinguishing operation, which greatly improves the reliability and continuity of fire extinguishing.
[0040] Furthermore, a limiting block 3071 is fixedly connected to one end of the fixed shaft 307 that passes through the limiting post 308.
[0041] Furthermore, the hinge rod 301 is hinged to the top side of the sliding plate 201.
[0042] The working principle of this invention is as follows: Under normal conditions, the protective cover 2 provides physical protection, and the heat dissipation window can be opened at night to assist the inverter body 701 in heat dissipation.
[0043] A temperature sensor installed on the inner wall of the protective cover 2 continuously monitors the ambient temperature around the inverter body 701.
[0044] When the inverter body 701 generates high temperature or open flame due to a fault, the temperature sensor immediately sends a signal to the host computer when it detects the preset alarm temperature threshold.
[0045] The host computer then activates the fire extinguishing cover mechanism. The flipping mechanism 5 first flips the fire blanket 4 to a horizontal position, and then drives the slide rail 6 to work, accurately and quickly moving the entire flipping mechanism 5 horizontally to directly above the fire inverter body 701, completing the positioning before fire extinguishing.
[0046] With the setting of the flipping mechanism 5, the fire blanket 4 can also be flipped 180° (this step requires moving the flipping mechanism 5 to the initial position to complete). Due to the setting of multiple fire blankets 4, multiple coverage protection can be achieved. When the first layer of fire blanket 4 is damaged during the fire extinguishing process, the backup fire blanket layer can be flipped to the working position through the flipping mechanism 5 to continue the fire extinguishing operation, which greatly improves the reliability and sustainability of fire extinguishing.
[0047] Fire blanket 4 extinguishes open flames quickly by physically isolating oxygen, perfectly protecting the precision components inside inverter body 701.
[0048] At the same time or after the fire blanket 4 covers the window, another linkage mechanism is activated: the host computer controls the drive slide rail 203 to work, which drives the sliding plate 201 covering the heat dissipation window to move downward along the slide groove 202, thereby opening the heat dissipation window.
[0049] When the sliding plate 201 moves down, a lifting mechanism 3 consisting of a hinge rod 1 301, a hinge rod 2 302, a hinge rod 303, a sleeve shaft 304, and a hinge rod 4 305 lifts the lifting plate 306 upward, so that the nozzle on the lifting plate 306 extends from the window and points towards the inverter covering the fire blanket 4.
[0050] When the lifting plate 306 moves upward, the fixed shaft 307 slides within the limiting post 308, and the limiting block 3071 plays a limiting role to ensure stable movement.
[0051] The externally connected fire extinguishing material pumping mechanism is activated, delivering the extinguishing agent (such as clean gas or coolant) to the nozzles through pipelines for directional spraying.
[0052] The spray serves two purposes: first, to cool the covered area and prevent reignition; and second, to suppress the fire around and outside the fire blanket 4, forming a protective barrier to prevent the fire from spreading outward and to protect adjacent equipment.
[0053] In the description of this invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.
[0054] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0055] Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
Claims
1. A fire prevention device for a photovoltaic power station inverter, characterized in that: Includes a base plate (1), and a mounting platform (7) is fixedly provided on the top of the base plate (1), and the inverter body (701) is installed on the top of the mounting platform (7); The top of the base plate (1) is also equipped with a protective cover (2) and a fire extinguishing cover mechanism installed at intervals and in parallel. The top of the protective cover (2) is inclined towards the flipping mechanism (5) and the protective cover (2) covers the top of the inverter body (701). The fire extinguishing cover mechanism includes a drive slide rail (6), a flipping mechanism (5) that is slidably installed on the top of the drive slide rail (6) and driven by the drive slide rail (6), and a fire blanket (4) installed on the flipping mechanism (5). A temperature sensor is installed on the inner wall of the protective cover (2). The temperature sensor, the drive slide rail (6), and the flipping mechanism (5) are all electrically connected to the host computer.
2. The fire prevention device for a photovoltaic power station inverter according to claim 1, characterized in that: The protective cover (2) has a heat dissipation window on the top of the side away from the flipping mechanism (5). A sliding plate (201) is movably covered at the heat dissipation window. The sliding plate (201) is slidably connected to the protective cover (2) through a second drive slide rail (203) set on the protective cover (2). The second drive slide rail (203) is used to drive the sliding plate (201) to slide downward and open the heat dissipation window.
3. A fire prevention device for a photovoltaic power station inverter according to claim 2, characterized in that: A lifting plate (306) is provided on the side of the sliding plate (201). The lifting plate (306) is connected to the sliding plate (201) through a lifting mechanism (3). The lifting mechanism (3) is used to lift the lifting plate (306) upward when the sliding plate (201) slides downward. Multiple nozzles are installed on the side of the lifting plate (306) near the heat dissipation window. The nozzles are connected to a fire extinguishing material pumping mechanism through a pipe.
4. A fire prevention device for a photovoltaic power station inverter according to claim 3, characterized in that: The lifting mechanism (3) includes a hinge rod one (301), one end of which is hinged to the side of the sliding plate (201), and the other end of which is hinged to a hinge rod two (302). The free end of the hinge rod two (302) is integrally fixedly connected to a hinge rod three (303), and the hinge rod two (302) and the hinge rod three (303) are hinged to the side wall of the protective cover (2). The free end of the hinge rod three (303) rotates vertically. A sleeve shaft (304) is movably connected, and a hinge rod (305) is rotatably connected to the free end of the sleeve shaft (304). The free end of the hinge rod (305) is hinged to the side of the lifting plate (306) away from the heat dissipation window. A fixed shaft (307) is vertically fixedly connected to the bottom end of the lifting plate (306). A limit post (308) is vertically fixedly connected to the side wall of the protective cover (2). The fixed shaft (307) is vertically slidably connected through the limit post (308).
5. A fire prevention device for a photovoltaic power station inverter according to claim 1, characterized in that: The flipping mechanism (5) includes a support platform (501), a U-shaped mounting frame (401), and a reciprocating flipping assembly for driving the U-shaped mounting frame (401) to flip. Mounting frame one (502) and mounting frame two (511) are vertically spaced at the top of the support platform (501). A motor (503) is mounted on mounting frame one (502). The motor (503) is driven by a drive shaft (504). The drive shaft (504) rotates through the top of mounting frame one (502) and is then driven by the reciprocating flipping assembly. The top of the mounting bracket 2 (511) is rotatably mounted with a flip rod (510). One end of the flip rod (510) is connected to the reciprocating flip assembly, and the other end of the flip rod (510) is fixedly mounted with a U-shaped mounting bracket (401). The U-shaped groove of the U-shaped mounting bracket (401) is set towards the inverter body (701), and the fire blanket (4) is installed in the U-shaped groove of the U-shaped mounting bracket (401).
6. A fire prevention device for a photovoltaic power station inverter according to claim 5, characterized in that: The reciprocating tilting assembly includes a guide rail (509) horizontally mounted on the side of the mounting bracket two (511) away from the U-shaped mounting bracket (401), a sliding bar (507) slidably mounted on the side of the guide rail (509) away from the mounting bracket two (511), a meshing rack disposed at the top of the sliding bar (507), a meshing gear (508) meshing with the meshing rack, a strip-shaped guide ring (506) vertically fixedly mounted on the side of the sliding bar (507) away from the guide rail (509), and a sliding sleeve fitted inside the strip-shaped guide ring (506). The moving block (5052) and the swing plate (505) are provided. One end of the swing plate (505) is fixedly sleeved with the drive shaft (504), and the other end of the swing plate (505) is vertically hinged with a hinge shaft (5051). The free end of the hinge shaft (5051) is rotatably connected to the side of the sliding block (5052) away from the guide rail (509). The inner ring of the meshing gear (508) is fixedly sleeved with a flip shaft (5081). The free end of the flip shaft (5081) rotates through the top of the mounting bracket two (511) and is fixedly sleeved with the flip rod (510).
7. A fire prevention device for a photovoltaic power station inverter according to claim 2, characterized in that: The protective cover (2) has two symmetrically arranged slides (202) on the side away from the flipping mechanism (5), and each of the two slides (202) is equipped with a drive slide rail (203).
8. A fire prevention device for a photovoltaic power station inverter according to claim 5, characterized in that: Multiple fire blankets (4) are installed in the U-shaped groove of the U-shaped mounting bracket (401) at intervals.
9. A fire prevention device for a photovoltaic power station inverter according to claim 4, characterized in that: The fixed shaft (307) is fixedly connected to a limiting block (3071) at one end of the limiting post (308).
10. A fire prevention device for a photovoltaic power station inverter according to claim 4, characterized in that: The hinge rod (301) is hinged to the top side of the sliding plate (201).