Distributed photovoltaic energy storage device with fire protection mechanism

Abstract

The utility model relates to the technical field of photovoltaic energy storage devices, in particular to a distributed photovoltaic energy storage device with a fire-fighting fireproof mechanism, which comprises a photovoltaic energy storage device main body, fire extinguishing mechanisms are arranged on two sides of the photovoltaic energy storage device main body and penetrate into the photovoltaic energy storage device main body, and the fire extinguishing mechanisms are arranged on the two sides of the photovoltaic energy storage device main body. The top end of the photovoltaic energy storage device body is slidably connected with a heat dissipation mechanism, and the heat dissipation mechanism penetrates through the two sides of the outer wall of the photovoltaic energy storage device body. According to the photovoltaic energy storage device, through mutual cooperation of internal parts of the heat dissipation mechanism, heat generated in the photovoltaic energy storage device body can be conveniently dissipated when the photovoltaic energy storage device body stores electric energy, dust entering the photovoltaic energy storage device body in the heat dissipation process is reduced, and through mutual cooperation of internal parts of the fire extinguishing mechanism, the fire extinguishing effect is improved. When parts in the photovoltaic energy storage device body are on fire due to high-temperature short circuit, fire sources in the photovoltaic energy storage device body can be extinguished in time, and therefore fire spreading is prevented.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic energy storage device technology, specifically to a distributed photovoltaic energy storage device with a fire prevention mechanism. Background Technology

[0002] Distributed photovoltaic (PV) power generation specifically refers to PV power generation facilities built near user sites, operating in a mode of self-consumption by the user side, with surplus electricity fed into the grid, and characterized by balancing and regulating the power distribution system. Distributed PV power generation follows the principles of adapting to local conditions, clean and efficient, decentralized layout, and local utilization, making full use of local solar energy resources to replace and reduce fossil energy consumption.

[0003] A search revealed a utility model patent with publication number CN218920322U, which discloses a distributed photovoltaic energy storage device. The device includes an energy storage box with a vertical plate fixedly installed on its top. A buffer mechanism is located on the top of the vertical plate, and an adjustment mechanism is provided on the surface of the energy storage box. This utility model utilizes the buffer mechanism to provide cushioning when external force strikes the photovoltaic panel. The torsion springs help to prevent direct, hard contact between the external force and the photovoltaic panel, thus avoiding damage. The adjustment mechanism allows for adjustment of the photovoltaic panel's angle. An electric slide rail moves a sliding block, which in turn moves a connecting plate. The connecting plate then moves a U-shaped block, which in turn adjusts the photovoltaic panel's angle towards the sun, facilitating better solar energy collection and improving energy utilization.

[0004] Although the aforementioned patent allows for adjustment of the photovoltaic panel via a U-shaped block, facilitating changes in the panel's angle towards the sun and improving solar energy collection efficiency, the photovoltaic energy storage device transmits the electricity generated by photovoltaic power generation to the battery via an inverter for storage. During this transmission and storage process, a significant amount of heat is generated between the inverter and the battery. This heat accumulation within the photovoltaic energy storage device can lead to a short circuit and potential combustion of the inverter or battery.

[0005] Therefore, it is necessary to propose a distributed photovoltaic energy storage device with fire protection mechanism to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a distributed photovoltaic energy storage device with a fire prevention mechanism. Through the cooperation of the internal parts of the heat dissipation mechanism, the heat generated inside the photovoltaic energy storage device body is dissipated during energy storage, and dust ingress is reduced during the heat dissipation process. Through the cooperation of the internal parts of the fire extinguishing mechanism, the fire source inside the photovoltaic energy storage device body can be extinguished in time when the internal parts of the photovoltaic energy storage device body catch fire due to high temperature short circuit, thereby preventing the spread of fire. This solves the problem in the prior art where a large amount of heat is generated between the inverter and the battery when the inverter transmits and stores electrical energy, and the continuous accumulation of heat inside the photovoltaic energy storage device can cause short circuit and combustion of the inverter or battery inside the photovoltaic energy storage device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a distributed photovoltaic energy storage device with a fire prevention mechanism, comprising a photovoltaic energy storage device body, fire extinguishing mechanisms placed on both sides of the photovoltaic energy storage device body and extending into the interior of the photovoltaic energy storage device body, and a heat dissipation mechanism slidably connected to the top of the photovoltaic energy storage device body and extending into both sides of the outer wall of the photovoltaic energy storage device body.

[0008] The fire extinguishing mechanism includes a storage tank, which is placed on both sides of the main body of the photovoltaic energy storage device. A fire pipe is sealed between the storage tank and the main body of the photovoltaic energy storage device and extends into the interior of the main body of the photovoltaic energy storage device. A booster pump is sleeved on the outer wall of the fire pipe and is fixed between the main body of the photovoltaic energy storage device and the storage tank by a support. A connecting frame is mechanically connected to the side of the fire pipe away from the storage tank. Multiple fire nozzles are threadedly connected to the side of the connecting frame away from the fire pipe. Infrared photoelectric sensors are mechanically connected between the multiple fire nozzles and are signal-connected to the booster pump through cables.

[0009] The heat dissipation mechanism includes multiple ventilation plates, which are rotatably connected to both sides of the outer wall of the main body of the photovoltaic energy storage device. A support frame is machined at the top of the main body of the photovoltaic energy storage device. A cooling fan is mechanically connected to the top of the support frame and extends into the interior of the support frame. Multiple connecting teeth are machined on the outer wall of the drive shaft of the cooling fan. Sliding rods are slidably connected to both sides of the support frame and are located on one side of the connecting teeth.

[0010] Preferably, the heat dissipation mechanism further includes a support plate, which is slidably connected to the inner wall of the photovoltaic energy storage device body and located at the bottom end of the sliding rod away from the support frame. A telescopic spring is connected between the bottom end of the support plate and the inner wall of the photovoltaic energy storage device body. Lifting plates are mechanically machined at both ends of the bottom end of the support plate and are slidably connected to the inside of the photovoltaic energy storage device body and located at both ends of the outer wall of the ventilation plate. Connecting shafts are sleeved at both ends of the ventilation plate and are rotatably connected to the inside of the photovoltaic energy storage device body and located on one side of the lifting plate.

[0011] Preferably, a photovoltaic power generation panel is installed and connected to the top of the main body of the photovoltaic energy storage device, an inverter and an energy storage battery are installed inside the main body of the photovoltaic energy storage device, heat dissipation holes matching the support frame are opened at the top of the main body of the photovoltaic energy storage device, and dustproof nets are installed and connected to the top of the support frame and the inner wall of the ventilation plate.

[0012] Preferably, the storage tank contains perfluorohexanone fire extinguishing agent, and the agent circulates between the storage tank and the connecting frame through a fire pipe. A drive motor for driving a cooling fan is installed at the bottom of the support frame.

[0013] Preferably, the outer wall of the connecting teeth is trapezoidal and densely distributed on the outer wall of the cooling fan output shaft. The contact surfaces between the sliding rod and the connecting teeth are conical surfaces, and the support frame has a transmission groove inside that matches the connecting teeth and the sliding rod.

[0014] Preferably, the inner wall of the main body of the photovoltaic energy storage device is provided with a telescopic groove that matches the support plate and the lifting plate, the outer wall of the connecting shaft near the lifting plate is machined with tooth blocks, and the side of the lifting plate is provided with a tooth groove that matches the tooth blocks on the outer wall of the connecting shaft.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. The cooling fan is driven by a drive motor to rotate on the support frame. The rotation of the cooling fan drives the connecting teeth to rotate. The rotating connecting teeth contact and press with the sliding rod through the conical surface, pushing the sliding rod to move and contact the support plate. This causes the support plate to be compressed and the extension spring to contract and move. The movement of the support plate drives the lifting plate to move. The movement of the lifting plate drives the connecting shaft to rotate through the tooth groove. The rotation of the connecting shaft drives the ventilation plate to rotate and open, thus forming ventilation holes on both sides of the bottom and top of the main body of the photovoltaic energy storage device, thereby completing the heat dissipation and ventilation of the internal heat of the main body of the photovoltaic energy storage device.

[0017] 2. By installing and fixing infrared photoelectric sensors on the connecting frame, when a fire occurs due to a short circuit in the internal electrical components of the photovoltaic energy storage device caused by insufficient heat dissipation, the infrared photoelectric sensors detect the fire and high-temperature smoke. The sensors then control the booster pump to operate, causing it to deliver perfluorohexanone extinguishing agent stored in the storage tank through the fire hose to the fire sprinklers on the connecting frame. This allows the fire sprinklers to extinguish the fire inside the photovoltaic energy storage device, thus completing the post-fire treatment of the device's interior without causing secondary damage to the insulation and conductivity of the electrical equipment within the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a cross-sectional structural diagram of the main body of the photovoltaic energy storage device of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure of the connecting frame of this utility model;

[0023] Figure 5 This is a cross-sectional structural diagram of the support frame of this utility model;

[0024] Figure 6 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 7 This is the system control flowchart of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Main body of photovoltaic energy storage device; 2. Fire extinguishing mechanism; 201. Storage tank; 202. Fire pipe; 203. Booster pump; 204. Connecting frame; 205. Fire sprinkler head; 206. Infrared photoelectric sensor; 3. Heat dissipation mechanism; 301. Ventilation plate; 302. Support frame; 303. Cooling fan; 304. Connecting tooth; 305. Sliding rod; 306. Support plate; 307. Telescopic spring; 308. Lifting plate; 309. Connecting shaft. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model provides, for example Figure 1-7 The distributed photovoltaic energy storage device with fire prevention mechanism shown includes a photovoltaic energy storage device body 1, fire extinguishing mechanism 2 is placed on both sides of the photovoltaic energy storage device body 1 and penetrates into the interior of the photovoltaic energy storage device body 1, and heat dissipation mechanism 3 is slidably connected to the top of the photovoltaic energy storage device body 1 and penetrates into both sides of the outer wall of the photovoltaic energy storage device body 1.

[0030] The fire extinguishing mechanism 2 includes a storage tank 201, which is placed on both sides of the main body 1 of the photovoltaic energy storage device. A fire pipe 202 is sealed between the storage tank 201 and the main body 1 of the photovoltaic energy storage device and extends into the interior of the main body 1 of the photovoltaic energy storage device. A booster pump 203 is sleeved on the outer wall of the fire pipe 202 and is fixed between the main body 1 of the photovoltaic energy storage device and the storage tank 201 by a support. A connecting frame 204 is mechanically connected to the side of the fire pipe 202 away from the storage tank 201. Multiple fire nozzles 205 are threadedly connected to the side of the connecting frame 204 away from the fire pipe 202. Infrared photoelectric sensors 206 are mechanically connected between the multiple fire nozzles 205 and are signal-connected to the booster pump 203 through cables.

[0031] The heat dissipation mechanism 3 includes multiple ventilation plates 301, which are rotatably connected to both sides of the outer wall of the photovoltaic energy storage device body 1. A support frame 302 is machined at the top of the photovoltaic energy storage device body 1. A cooling fan 303 is mechanically connected to the top of the support frame 302 and extends into the interior of the support frame 302. Multiple connecting teeth 304 are machined on the outer wall of the drive shaft of the cooling fan 303. Sliding rods 305 are slidably connected to both sides of the support frame 302 and are located on one side of the connecting teeth 304.

[0032] Through the cooperation between the internal parts of the heat dissipation mechanism 3, the photovoltaic energy storage device body 1 can dissipate the heat generated inside the photovoltaic energy storage device body 1 when storing electrical energy, and reduce the entry of dust during the heat dissipation process. Through the cooperation between the internal parts of the fire extinguishing mechanism 2, the fire source inside the photovoltaic energy storage device body 1 can be extinguished in time when the internal parts of the photovoltaic energy storage device body 1 catch fire due to high temperature short circuit, thereby preventing the spread of fire.

[0033] Refer to the instruction manual appendix Figure 1-7The heat dissipation mechanism 3 also includes a support plate 306, which is slidably connected to the inner wall of the photovoltaic energy storage device body 1 and located at the bottom end of the sliding rod 305 away from the support frame 302. A telescopic spring 307 is connected between the bottom end of the support plate 306 and the inner wall of the photovoltaic energy storage device body 1. Lifting plates 308 are machined at both ends of the bottom end of the support plate 306 and are slidably connected to the inside of the photovoltaic energy storage device body 1 and located at both ends of the outer wall of the ventilation plate 301. Connecting shafts 309 are sleeved at both ends of the ventilation plate 301 and are rotatably connected to the inside of the photovoltaic energy storage device body 1 and located on one side of the lifting plate 308. Through the mutual cooperation between the internal parts of the heat dissipation mechanism 3, the ventilation plate 301 can be easily opened and closed on both sides of the photovoltaic energy storage device body 1, so that the air inside the photovoltaic energy storage device body 1 can circulate and dissipate heat.

[0034] Refer to the instruction manual appendix Figure 1-7 A photovoltaic power generation panel is installed and connected to the top of the main body 1 of the photovoltaic energy storage device. An inverter and a storage battery are installed inside the main body 1 of the photovoltaic energy storage device. The top of the main body 1 of the photovoltaic energy storage device has heat dissipation holes that match the support frame 302. Dustproof nets are installed and connected to the top of the support frame 302 and the inner wall of the ventilation plate 301. The heat dissipation holes that match the support frame 302 and the dustproof nets installed and connected to the top of the support frame 302 and the inner wall of the ventilation plate 301 facilitate heat dissipation inside the main body 1 of the photovoltaic energy storage device and effectively prevent dust from entering the main body 1 of the photovoltaic energy storage device.

[0035] Refer to the instruction manual appendix Figure 1-7 The storage tank 201 contains perfluorohexanone fire extinguishing agent, which circulates between the storage tank 201 and the connecting frame 204 via the fire extinguishing pipe 202. The bottom of the support frame 302 is equipped with a drive motor that drives the cooling fan 303 to rotate. The perfluorohexanone fire extinguishing agent stored in the storage tank 201 and circulates between the fire extinguishing pipe 202 and the connecting frame 204 facilitates the effective fire extinguishing of the photovoltaic energy storage device body 1 by the perfluorohexanone fire extinguishing agent, and will not cause secondary damage to the insulation and conductivity of the electrical equipment inside the photovoltaic energy storage device body 1 after fire extinguishing.

[0036] Refer to the instruction manual appendix Figure 1-7The outer wall of the connecting teeth 304 is trapezoidal and densely distributed on the outer wall of the output shaft of the cooling fan 303. The contact surfaces of the sliding rod 305 and the connecting teeth 304 are both conical. The support frame 302 has a transmission groove inside that matches the connecting teeth 304 and the sliding rod 305. The outer wall of the connecting teeth 304 is trapezoidal and densely distributed on the outer wall of the output shaft of the cooling fan 303. The contact surfaces of the sliding rod 305 and the connecting teeth 304 are both conical. The support frame 302 has a transmission groove inside that matches the connecting teeth 304 and the sliding rod 305, which facilitates the continuous rotation of the connecting teeth 304 to continuously compress the sliding rod 305.

[0037] Refer to the instruction manual appendix Figure 1-7 The inner wall of the main body 1 of the photovoltaic energy storage device is provided with a telescopic groove that matches the support plate 306 and the lifting plate 308. The outer wall of the connecting shaft 309 near the lifting plate 308 is machined with tooth blocks, and the side of the lifting plate 308 is provided with a tooth groove that matches the tooth blocks on the outer wall of the connecting shaft 309. The tooth blocks on the outer wall of the connecting shaft 309 near the lifting plate 308 and the tooth groove on the side of the lifting plate 308 that matches the tooth blocks on the outer wall of the connecting shaft 309 facilitate the movement of the lifting plate 308 and drive the connecting shaft 309 to rotate through the tooth groove.

[0038] The working principle of this practical application is as follows:

[0039] Refer to the instruction manual appendix Figure 1-7 The cooling fan 303 is driven by a drive motor to rotate on the support frame 302. The rotation of the cooling fan 303 drives the connecting tooth 304 to rotate. The rotating connecting tooth 304 contacts and presses the sliding rod 305 through the conical surface, pushing the sliding rod 305 to move and contact the support plate 306. The support plate 306 is then compressed and the telescopic spring 307 is contracted and moved. The movement of the support plate 306 drives the lifting plate 308 to move. The movement of the lifting plate 308 drives the connecting shaft 309 to rotate through the tooth groove. The rotation of the connecting shaft 309 drives the ventilation plate 301 to rotate and open, so that ventilation holes are formed on both sides of the bottom and the top of the photovoltaic energy storage device body 1, thereby completing the heat dissipation and ventilation of the inside of the photovoltaic energy storage device body 1.

[0040] Refer to the instruction manual appendix Figure 1-7By installing and fixing an infrared photoelectric sensor 206 on the connecting frame 204, when a fire occurs due to a short circuit in the internal electrical components of the photovoltaic energy storage device 1 caused by insufficient heat dissipation, the infrared photoelectric sensor 206 detects the fire and high-temperature smoke and controls the booster pump 203 to be energized. The booster pump 203 then delivers the perfluorohexanone fire extinguishing agent stored in the storage tank 201 through the fire pipe 202 to the fire sprinkler head 205 on the connecting frame 204, so that the fire sprinkler head 205 can extinguish the fire inside the photovoltaic energy storage device 1. This completes the post-fire extinguishing treatment of the inside of the photovoltaic energy storage device 1 without causing secondary damage to the insulation and conductivity of the internal electrical equipment.

[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A distributed photovoltaic energy storage device with a fire prevention mechanism, characterized in that: The device includes a photovoltaic energy storage device body (1), fire extinguishing mechanisms (2) are placed on both sides of the photovoltaic energy storage device body (1) and penetrate into the interior of the photovoltaic energy storage device body (1), and a heat dissipation mechanism (3) is slidably connected to the top of the photovoltaic energy storage device body (1) and penetrates into both sides of the outer wall of the photovoltaic energy storage device body (1). The fire extinguishing mechanism (2) includes a storage tank (201), which is placed on both sides of the photovoltaic energy storage device body (1). A fire pipe (202) is sealed between the storage tank (201) and the photovoltaic energy storage device body (1) and extends into the interior of the photovoltaic energy storage device body (1). A booster pump (203) is sleeved on the outer wall of the fire pipe (202) and is fixed between the photovoltaic energy storage device body (1) and the storage tank (201) by a support. A connecting frame (204) is mechanically connected to the side of the fire pipe (202) away from the storage tank (201). A plurality of fire nozzles (205) are threadedly connected to the side of the connecting frame (204) away from the fire pipe (202). An infrared photoelectric sensor (206) is mechanically connected between the plurality of fire nozzles (205) and is signal-connected to the booster pump (203) by a cable. The heat dissipation mechanism (3) includes multiple ventilation plates (301), which are rotatably connected to both sides of the outer wall of the photovoltaic energy storage device body (1). A support frame (302) is machined at the top of the photovoltaic energy storage device body (1). A cooling fan (303) is mechanically connected to the top of the support frame (302) and extends into the interior of the support frame (302). Multiple connecting teeth (304) are machined on the outer wall of the drive shaft of the cooling fan (303). Sliding rods (305) are slidably connected to both sides of the support frame (302) and are located on one side of the connecting teeth (304).

2. A distributed photovoltaic energy storage device with a fire prevention mechanism according to claim 1, characterized in that: The heat dissipation mechanism (3) also includes a support plate (306), which is slidably connected to the inner wall of the photovoltaic energy storage device body (1) and located at the bottom end of the sliding rod (305) away from the support frame (302). A telescopic spring (307) is connected between the bottom end of the support plate (306) and the inner wall of the photovoltaic energy storage device body (1). Lifting plates (308) are machined at both ends of the bottom end of the support plate (306) and are slidably connected to the inside of the photovoltaic energy storage device body (1) and located at both ends of the outer wall of the ventilation plate (301). Connecting shafts (309) are sleeved at both ends of the ventilation plate (301) and are rotatably connected to the inside of the photovoltaic energy storage device body (1) and located on one side of the lifting plate (308).

3. A distributed photovoltaic energy storage device with a fire prevention mechanism according to claim 1, characterized in that: A photovoltaic power generation panel is installed and connected to the top of the main body (1) of the photovoltaic energy storage device. An inverter and an energy storage battery are installed inside the main body (1). A heat dissipation hole matching the support frame (302) is opened at the top of the main body (1) of the photovoltaic energy storage device. A dustproof net is installed and connected to the top of the support frame (302) and the inner wall of the ventilation plate (301).

4. A distributed photovoltaic energy storage device with a fire prevention mechanism according to claim 1, characterized in that: The storage tank (201) contains perfluorohexanone fire extinguishing agent and circulates with the connecting frame (204) through the fire pipe (202). The bottom of the support frame (302) is equipped with a drive motor that drives the cooling fan (303) to rotate.

5. A distributed photovoltaic energy storage device with a fire prevention mechanism according to claim 1, characterized in that: The outer wall of the connecting tooth (304) is trapezoidal and is densely distributed on the outer wall of the output shaft of the cooling fan (303). The contact surfaces of the sliding rod (305) and the connecting tooth (304) are both conical. The support frame (302) has a transmission groove inside that matches the connecting tooth (304) and the sliding rod (305).

6. A distributed photovoltaic energy storage device with a fire prevention mechanism according to claim 2, characterized in that: The inner wall of the main body (1) of the photovoltaic energy storage device is provided with a telescopic groove that matches the support plate (306) and the lifting plate (308). The outer wall of the connecting shaft (309) near the lifting plate (308) is machined with tooth blocks, and the side of the lifting plate (308) is provided with a tooth groove that matches the tooth blocks on the outer wall of the connecting shaft (309).

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