Photovoltaic energy storage cabinet with multiple security protections

Abstract

The application belongs to the technical field of photovoltaic energy storage, in particular to a photovoltaic energy storage cabinet with multiple safety protections, which comprises an energy storage box, a plurality of energy storage cabinets are installed in the energy storage box, guide grooves are formed on both sides of the energy storage box below the energy storage cabinets, an electric telescopic rod is installed on one side of the guide groove, sliding baffles are fixed on both sides of the bottom end of the energy storage cabinet, the output shaft end of the electric telescopic rod is fixedly connected with the sliding baffles, a plurality of battery groups are installed in the energy storage cabinet, ventilation holes are formed on both sides of the energy storage cabinet, rotating baffles are rotatably connected in the ventilation holes, and a cabinet door is rotatably connected on one side of the energy storage cabinet. The energy storage cabinet can be pushed out from the inside of the energy storage box by the electric telescopic rod pushing the sliding baffles, which can prevent the energy storage cabinet from burning in the energy storage box and causing damage to other energy storage cabinets, prevent one group of energy storage cabinets from burning and causing multiple groups of energy storage cabinets to burn, and cause great loss.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic energy storage technology, specifically a photovoltaic energy storage cabinet with multiple safety protections. Background Technology

[0002] Electricity is currently the most widely used new energy source, used in industrial production, household electricity consumption, and new energy vehicles. Electricity can be generated through thermal power generation, hydropower generation, wind power generation, and photovoltaic power generation. In the process of photovoltaic power generation, solar energy is converted into electrical energy through photovoltaic panels, and the generated electrical energy needs to be stored through photovoltaic energy storage cabinets.

[0003] The external enclosure of a photovoltaic energy storage cabinet is typically container-shaped. Internally, it integrates auxiliary systems such as fire protection, temperature control, power distribution, and a battery management system (BMS), as well as the battery packs required for energy storage. During use, the cabinet is installed near the photovoltaic panels, which are connected to the BMS system via cables. The BMS system connects to multiple battery packs and distributes the required stored energy to them. During charging and discharging, the battery packs generate heat. The temperature control system monitors multiple battery packs and controls the heat dissipation of the internal cooling devices to maintain a stable operating environment. If the battery pack temperature becomes abnormal, it may catch fire. In the event of a fire, the temperature control system controls the fire suppression system through the power distribution system to extinguish and cool the battery packs. The temperature control system also distributes power through the power distribution system, thus ensuring stable storage and transmission of energy from the photovoltaic panels.

[0004] Existing technical solutions monitor the temperature of the battery packs in the photovoltaic energy storage cabinet during use and extinguish fires through the fire suppression system in the event of a fire. However, the energy storage batteries use lithium battery cells, which cannot be directly extinguished when they catch fire. The fire suppression system can only suppress the open flame and cool the battery. However, the multiple battery packs inside the photovoltaic energy storage box usually do not catch fire at the same time. Therefore, the heat generated by the combustion of one battery pack can affect other normal battery packs and even ignite them, resulting in high losses.

[0005] Therefore, the present invention provides a photovoltaic energy storage cabinet with multiple safety protections. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a photovoltaic energy storage cabinet with multiple safety protections, including an energy storage box, in which multiple energy storage cabinets are installed. Guide grooves are provided on both sides of the energy storage box below the energy storage cabinets. An electric telescopic rod is installed on one side of the guide groove. Sliding baffles are fixed on both sides of the bottom of the energy storage cabinets. The sliding baffles are slidably connected to the inside of the guide grooves. The output shaft end of the electric telescopic rod is fixedly connected to the sliding baffle. Multiple battery packs are installed inside the energy storage cabinet. Ventilation holes are provided on both sides of the energy storage cabinet. Rotating baffles are rotatably connected inside the ventilation holes. A cabinet door is rotatably connected to one side of the energy storage cabinet. When the energy storage cabinet extends from inside the energy storage box, the rotating baffle closes with the ventilation hole.

[0008] Preferably, a gear is fixed to one end of the rotating baffle shaft, and a rack is provided on both sides inside the energy storage cabinet. The rack meshes with multiple gears, and an inclined surface is provided at the bottom end of the rack. When the energy storage cabinet is moved into the energy storage box, the inclined plane slides inside the guide groove. When the sliding baffle enters the guide groove, the rack moves upward through the guide of the inclined plane and the rotating baffle rotates upward 90°. When the energy storage cabinet is moved out of the energy storage box, the rack moves downward and the rotating baffle rotates downward 90° to close the ventilation hole.

[0009] Preferably, a coil spring is fixed to the end of the rotating shaft at the other end of the rotating baffle, and the other end of the coil spring is fixedly connected to the energy storage cabinet.

[0010] Preferably, the bottom end of the toothed rod is provided with a positioning hole, and a second limiting post is provided on one side of the positioning hole. The second limiting post is slidably connected inside the energy storage cabinet and can be inserted into the positioning hole. A pushing component is provided on one side of the second limiting post.

[0011] Preferably, the pushing component includes a second heat-absorbing plate installed on both sides inside the energy storage box. The second heat-absorbing plate is filled with water. A second output pipe is fixed to one side of the second heat-absorbing plate. A second connecting cylinder is fixed to the bottom end of the second output pipe. The second connecting cylinder is inserted into the second limiting post.

[0012] Preferably, a second spring is fixed to the outside of the second limiting post, and the other end of the second spring is fixedly connected to the energy storage cabinet.

[0013] Preferably, side panels are fixed on both sides of the cabinet door, a tension spring is fixed on one side of the side panel, the other end of the tension spring is fixedly connected to the energy storage cabinet, a sliding hole is opened on one side of the side panel, the pushing assembly also includes a first limiting post disposed on one side of the side panel, the first limiting post is slidably connected to both sides of the energy storage cabinet, a first connecting cylinder is slidably connected inside the first limiting post, a first output pipe is fixed on one side of the first connecting cylinder, the bottom end of the first output pipe is fixedly connected to the second heat absorption plate, and a pull rope is fixed on one side of the first limiting post; When the first limiting post is inserted into the sliding hole, the maximum rotation angle of the cabinet door is 30°.

[0014] Preferably, a mounting base is fixed to one side of the cabinet door, a fire extinguisher is installed at the top of the mounting base, and multiple nozzles are evenly spaced on the side of the cabinet door away from the mounting base, with the nozzles communicating with the mounting base.

[0015] Preferably, a first heat-absorbing plate is fixed to the side of the cabinet door near the nozzle, the first heat-absorbing plate is filled with water, the bottom end of the mounting base is connected to a connecting shell, a sphere is rotatably connected inside the connecting shell, a fixing shell is fixed to one side of the connecting shell, a rotating cavity is opened inside the fixing shell, a connecting cavity is opened below the rotating cavity, the connecting cavity is connected to the inside of the first heat-absorbing plate through a pipe, and a rotating plate is fixed to the rotating shaft end of the sphere, the rotating plate being rotatably connected inside the rotating cavity.

[0016] Preferably, a fixing groove is provided at the bottom of the cabinet door, and an insert block is slidably connected to the bottom of the energy storage cabinet. A first spring is fixed on both sides of the insert block, and the first spring is fixedly connected to the energy storage cabinet. The bottom of the insert block extends out from the inside of the energy storage cabinet.

[0017] The beneficial effects of this invention are as follows: 1. The photovoltaic energy storage cabinet with multiple safety protections described in this invention can extend the energy storage cabinet from the inside of the energy storage box by pushing the sliding baffle with an electric telescopic rod. This can prevent the energy storage cabinet from burning inside the energy storage box and causing damage to other energy storage cabinets, thus preventing the combustion of one set of energy storage cabinets from causing multiple sets of energy storage cabinets to burn and resulting in significant losses.

[0018] 2. The photovoltaic energy storage cabinet with multiple safety protections described in this invention can be opened and closed by rotating the baffle inside the ventilation hole and by opening and closing the cabinet door on one side of the energy storage cabinet. This allows the flame to only be ejected through one side of the cabinet door when the energy storage cabinet extends from inside the energy storage box and is guided downward by the cabinet door, further preventing the flame from damaging other energy storage cabinets and surrounding facilities. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the extended energy storage cabinet in this invention; Figure 3 This is a bottom view of the energy storage cabinet in this invention; Figure 4 This is a schematic diagram of the internal structure of the energy storage cabinet in this invention; Figure 5 This is a schematic diagram of the cabinet door structure in this invention; Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle; Figure 7 This is a schematic diagram of the first limiting post structure in this invention; Figure 8 This is a partial structural diagram of the rotating baffle in this invention; Figure 9 This is a schematic diagram of the insert block structure in this invention; Figure 10 This is a schematic diagram of the internal structure of the connecting shell in this invention.

[0021] In the diagram: 1. Energy storage box; 11. Guide groove; 12. Energy storage cabinet; 121. Cabinet door; 122. Ventilation hole; 123. Electric telescopic rod; 124. Sliding baffle; 125. Side plate; 126. Sliding hole; 127. Tension spring; 13. Rotating baffle; 131. Coil spring; 132. Gear; 133. Gear rack; 134. Positioning hole; 135. Inclined surface; 14. Mounting base; 141. Fire extinguishing canister; 142. Nozzle; 143. First heat absorption plate 144. Insert block; 145. First spring; 15. First limiting post; 151. First connecting cylinder; 152. First output pipe; 153. Pull rope; 154. Second heat absorption plate; 155. Second output pipe; 156. Second connecting cylinder; 157. Second limiting post; 158. Second spring; 16. Connecting shell; 161. Sphere; 162. Fixed shell; 163. Rotating plate; 164. Rotating cavity; 165. Connecting cavity; 2. Battery pack. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 5As shown in the figure, a photovoltaic energy storage cabinet with multiple safety protections according to an embodiment of the present invention includes an energy storage box 1, a plurality of energy storage cabinets 12 installed inside the energy storage box 1, guide grooves 11 are provided on both sides below the energy storage cabinets 12 inside the energy storage box 1, an electric telescopic rod 123 is installed on one side inside the guide groove 11, sliding baffles 124 are fixed on both sides of the bottom end of the energy storage cabinets 12, the sliding baffles 124 are slidably connected inside the guide grooves 11, the output shaft end of the electric telescopic rod 123 is fixedly connected to the sliding baffles 124, a plurality of battery packs 2 are installed inside the energy storage cabinets 12, ventilation holes 122 are provided on both sides of the energy storage cabinets 12, a rotating baffle 13 is rotatably connected inside the ventilation holes 122, and a cabinet door 121 is rotatably connected to one side of the energy storage cabinets 12; When the energy storage cabinet 12 extends out of the energy storage box 1, the rotating baffle 13 closes with the ventilation hole 122. During the use of photovoltaic energy storage cabinets, multiple energy storage cabinets 12 are installed inside the energy storage box 1. The energy storage box 1 also integrates auxiliary systems such as fire protection, temperature control, power distribution, and BMS to cooperate with the energy storage cabinets 12 for energy storage. The battery packs 2 inside the energy storage cabinets 12 consist of multiple battery packs and can store the electrical energy generated by photovoltaic power generation. During use, the temperature control system monitors the temperature of the energy storage cabinets 12 in real time and uses the fire protection system to extinguish and cool them down when thermal runaway occurs. However, when the cells of the battery packs 2 experience thermal runaway, the fire protection system cannot directly extinguish the fire. At the same time, the flames produced by the burning lithium batteries are long and hot, which can easily damage other energy storage cabinets 12 inside the energy storage box 1 that have not experienced thermal runaway, or even ignite other energy storage cabinets 12, causing greater losses. To solve this problem, the energy storage cabinets 12 inside the energy storage box 1 are set up in a modular way, and two electric telescopic rods 123 are installed inside each chamber where an energy storage cabinet 12 is installed. During daily use, the electric telescopic rods 123 are retracted. Inside the guide groove 11, the sliding baffle 124 is pulled to place the energy storage cabinet 12 inside the cavity of the energy storage box 1. The temperature is monitored by the temperature control system of the energy storage box 1. At the same time, rotating the baffle 13 will rotate upward to open the ventilation hole 122, which can facilitate air circulation and heat dissipation inside the energy storage cabinet 12. When the heat of one of the energy storage cabinets 12 reaches the threshold, the electric telescopic rod 123 is activated to push the sliding baffle 124 to move the energy storage cabinet 12 out from the inside of the energy storage box 1, so that the entire energy storage cabinet 12 is placed outside the energy storage box 1. Simultaneously rotating the baffle 13 and closing the ventilation hole 122, the two sides of the energy storage cabinet 12 are sealed. At this time, when the battery pack 2 thermally runs away and catches fire, it will only be inside the energy storage cabinet 12. When the internal pressure of the energy storage cabinet 12 is high, the cabinet door 121 is pushed open by the internal pressure, and flames are sprayed outward through one side of the cabinet door 121, thereby preventing the flames from affecting other energy storage cabinets 12. In this way, the thermally runaway energy storage cabinet 12 can be separated from other normally used energy storage cabinets 12, minimizing economic losses.

[0024] like Figures 1 to 8 As shown, a gear 132 is fixed at one end of the rotating shaft of the rotating baffle 13, and a rack 133 is provided on both sides inside the energy storage cabinet 12. The rack 133 is meshed with multiple gears 132, and an inclined surface 135 is provided at the bottom end of the rack 133. When the energy storage cabinet 12 moves into the energy storage box 1, the inclined surface 135 slides inside the guide groove 11. When the sliding baffle 124 enters the guide groove 11, the rack 133 moves upward through the guide of the inclined surface 135, and the rotating baffle 13 rotates upward by 90°. When the energy storage cabinet 12 moves out of the energy storage box 1, the rack 133 moves downward, and the rotating baffle 13 rotates downward by 90° to close the ventilation hole 122. When the battery pack 2 inside the energy storage cabinet 12 is installed and moved into the energy storage box 1, the inclined surface 135 of the rack 133 extends out from the energy storage cabinet 12. The electric telescopic rod 123 drives the energy storage cabinet 12 into the energy storage box 1 through the sliding baffle 124. During this process, the bottom end of the rack 133 moves inside the guide groove 11. When the sliding baffle 124 moves into the guide groove 11, the inclined surface 135 contacts the edge of the guide groove 11. The edge of the guide groove 11 limits and guides the inclined surface 135, causing the rack 133 to move upward. During the upward movement of the rack 133, the gear 132 is driven to rotate, which can drive the rotating baffle 13 to rotate upward by 90°. At this time, the rotating baffle 13 and the ventilation hole 122 are opened, which facilitates the temperature control system inside the energy storage box 1 to remove the heat generated by the battery pack 2 through airflow. The rotating baffle 13 and the ventilation hole 122 can be opened automatically.

[0025] like Figures 1 to 8 As shown, a coil spring 131 is fixed to the end of the rotating shaft at the other end of the rotating baffle 13, and the other end of the coil spring 131 is fixedly connected to the energy storage cabinet 12. When the rack 133 drives the gear 132 to rotate the baffle 13, the baffle 13 drives the coil spring 131 to tighten. When the energy storage cabinet 12 is moved out of the energy storage box 1, the elastic force of the coil spring 131 drives the baffle 13 to rotate 90° in the opposite direction. At this time, the baffle 13 and the ventilation hole 122 are closed. At the same time, the gear 132 drives the rack 133 to descend and reset, which can realize the automatic closure between the baffle 13 and the ventilation hole 122.

[0026] like Figures 1 to 8 As shown, a positioning hole 134 is provided at the bottom end of the toothed rod 133, and a second limiting post 157 is provided on one side of the positioning hole 134. The second limiting post 157 is slidably connected to the inside of the energy storage cabinet 12, and the second limiting post 157 can be inserted into the positioning hole 134. A pushing component is provided on one side of the second limiting post 157. When the battery pack 2 inside the energy storage cabinet 12 experiences thermal runaway, the internal pressure of the energy storage cabinet 12 is relatively high. Therefore, the rotating baffle 13 will be pushed open by the internal pressure of the energy storage cabinet 12. To prevent this problem, a pushing component is provided. The pushing component pushes the second limiting post 157 into the positioning hole 134. At this time, the rack 133 can be limited, and the rotating baffle 13 can be limited by the gear 132 to prevent the rotating baffle 13 from opening due to internal pressure, causing the ventilation hole 122 to leak flame.

[0027] like Figures 1 to 8 As shown, the driving component includes a second heat absorption plate 154 installed on both sides inside the energy storage box 1. The second heat absorption plate 154 is filled with water. A second output pipe 155 is fixed on one side of the second heat absorption plate 154. A second connecting cylinder 156 is fixed at the bottom end of the second output pipe 155. The second connecting cylinder 156 is inserted into the second limiting post 157. When the battery pack 2 inside the energy storage cabinet 12 is burning, the inside of the energy storage cabinet 12 will be in a high-temperature environment. At this time, the second heat absorption plate 154 absorbs heat and heats the water inside and generates steam. The steam is input to the second connecting cylinder 156 through the second output pipe 155. The steam output from the second connecting cylinder 156 can push the second limiting post 157 into the interior of the positioning hole 134, thereby realizing automatic limiting of the toothed rod 133.

[0028] like Figures 1 to 8 As shown, a second spring 158 is fixed to the outside of the second limiting post 157, and the other end of the second spring 158 is fixedly connected to the energy storage cabinet 12. When the second limiting post 157 is pushed, the second spring 158 is squeezed. When the heat of the second heat absorption plate 154 decreases, the steam will condense into water, causing the pressure of the second connecting cylinder 156 to decrease. At this time, the elastic force of the second spring 158 pushes the second limiting post 157 to automatically reset, which can realize the automatic reset of the second limiting post 157 to facilitate subsequent processing of the inside of the energy storage cabinet 12.

[0029] like Figures 1 to 7 As shown, side plates 125 are fixed on both sides of the cabinet door 121. A tension spring 127 is fixed on one side of the side plate 125. The other end of the tension spring 127 is fixedly connected to the energy storage cabinet 12. A sliding hole 126 is opened on one side of the side plate 125. The pushing component also includes a first limiting post 15 disposed on one side of the side plate 125. The first limiting post 15 is slidably connected to both sides of the energy storage cabinet 12. A first connecting cylinder 151 is slidably connected inside the first limiting post 15. A first output pipe 152 is fixed on one side of the first connecting cylinder 151. The bottom end of the first output pipe 152 is fixedly connected to the second heat absorption plate 154. A pull rope 153 is fixed on one side of the first limiting post 15. When the first limiting post 15 is inserted into the sliding hole 126, the maximum rotation angle of the cabinet door 121 is 30°. When the internal temperature of the energy storage cabinet 12 rises, the second heat absorption plate 154 simultaneously outputs steam to the inside of the first connecting cylinder 151 through the first output pipe 152. At this time, the first limiting post 15 is pushed into the inside of the sliding hole 126. At this time, the internal pressure of the energy storage cabinet 12 is large and overcomes the tension of the tension spring 127 on the side plate 125. When the cabinet door 121 is pushed open, the sliding hole 126 slides outside the first limiting post 15. At this time, the first limiting post 15 can limit the sliding hole 126, so that the cabinet door 121 can only rotate a maximum of 30°. This allows the flames emitted by the energy storage cabinet 12 to be directed downwards, preventing the flames from damaging the surrounding facilities. When the cabinet door 121 needs to be opened after combustion, the pull rope 153 is pulled to reset the first limiting post 15, which can release the first limiting post 15 from limiting the sliding hole 126. Then the cabinet door 121 can be opened. This can realize automatic limiting of the cabinet door 121 to prevent the flames from damaging other surrounding facilities and other energy storage cabinets 12.

[0030] like Figures 1 to 5 As shown, a mounting base 14 is fixed on one side of the cabinet door 121, and a fire extinguisher 141 is installed on the top of the mounting base 14. Multiple nozzles 142 are evenly spaced on the side of the cabinet door 121 away from the mounting base 14, and the nozzles 142 are connected to the mounting base 14. After the heat inside the energy storage cabinet 12 reaches the threshold, the fire extinguishing tank 141 outputs fire extinguishing agent to the nozzle 142 through the mounting base 14. The nozzle 142 sprays out the fire extinguishing agent, which can suppress the combustion inside the energy storage cabinet 12 and achieve further protection for other energy storage cabinets 12.

[0031] like Figures 1 to 10 As shown, a first heat-absorbing plate 143 is fixed on the side of the cabinet door 121 near the nozzle 142. The first heat-absorbing plate 143 is filled with water. The bottom end of the mounting base 14 is connected to a connecting shell 16. A ball 161 is rotatably connected inside the connecting shell 16. A fixing shell 162 is fixed on one side of the connecting shell 16. A rotating cavity 164 is opened inside the fixing shell 162. A connecting cavity 165 is opened below the rotating cavity 164. The connecting cavity 165 is connected to the inside of the first heat-absorbing plate 143 through a pipe. A rotating plate 163 is fixed to the rotating shaft end of the ball 161. The rotating plate 163 can be rotatably connected inside the rotating cavity 164. When the energy storage cabinet 12 is burning, it will simultaneously heat the first heat absorption plate 143. At this time, the water inside the first heat absorption plate 143 is heated to generate steam. The steam is input into the connecting cavity 165 through the pipe. In the initial state, the sphere 161 is not connected to the connecting shell 16. At this time, the rotating plate 163 is at the bottom of the rotating cavity 164. The steam inside the connecting cavity 165 is input into the rotating cavity 164, pushing the rotating plate 163 to rotate upward by 90°. At this time, the sphere 161 is connected to the inside of the connecting shell 16, which allows the mounting base 14 to input the extinguishing agent into the nozzle 142. In this way, the extinguishing agent can be automatically output from the mounting base 14 to the nozzle 142.

[0032] like Figures 1 to 9 As shown, a fixing groove is provided at the bottom of the cabinet door 121, and a plug 144 is slidably connected to the bottom of the energy storage cabinet 12. A first spring 145 is fixed on both sides of the plug 144. The first spring 145 is fixedly connected to the energy storage cabinet 12, and the bottom of the plug 144 extends out from the inside of the energy storage cabinet 12. When the energy storage cabinet 12 enters the energy storage box 1, in order to prevent the cabinet door 121 from being opened from the outside, an insert block 144 is provided at the bottom of the energy storage cabinet 12. When the energy storage cabinet 12 moves into the energy storage box 1, the insert block 144 is pushed upward by the slope. At this time, the top of the insert block 144 is inserted into the fixing groove of the cabinet door 121, which can fix the cabinet door 121. When the energy storage cabinet 12 is moved out of the energy storage box 1, the elastic force of the first spring 145 pushes the insert block 144 to separate from the cabinet door 121, thereby releasing the limitation on the cabinet door 121 and making it easy to fix and release the cabinet door 121.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic energy storage cabinet with multiple safety protections, characterized in that: The device includes an energy storage box, inside which multiple energy storage cabinets are installed. Guide grooves are provided on both sides below the energy storage cabinets inside the energy storage box. An electric telescopic rod is installed on one side of each guide groove. Sliding baffles are fixed on both sides of the bottom of each energy storage cabinet, and these baffles are slidably connected inside the guide grooves. The output shaft end of the electric telescopic rod is fixedly connected to the sliding baffles. Multiple battery packs are installed inside each energy storage cabinet. Ventilation holes are provided on both sides of each energy storage cabinet, and rotating baffles are rotatably connected inside each ventilation hole. A cabinet door is rotatably connected to one side of each energy storage cabinet. When the energy storage cabinet extends from inside the energy storage box, the rotating baffle closes with the ventilation hole.

2. The photovoltaic energy storage cabinet with multiple safety protections according to claim 1, characterized in that: A gear is fixed to one end of the rotating baffle shaft, and a rack is provided on both sides inside the energy storage cabinet. The rack meshes with multiple gears, and an inclined surface is provided at the bottom end of the rack. When the energy storage cabinet is moved into the energy storage box, the inclined plane slides inside the guide groove. When the sliding baffle enters the guide groove, the rack moves upward through the guide of the inclined plane and the rotating baffle rotates upward 90°. When the energy storage cabinet is moved out of the energy storage box, the rack moves downward and the rotating baffle rotates downward 90° to close the ventilation hole.

3. A photovoltaic energy storage cabinet with multiple safety protections according to claim 2, characterized in that: A coil spring is fixed to the end of the shaft at the other end of the rotating baffle, and the other end of the coil spring is fixedly connected to the energy storage cabinet.

4. A photovoltaic energy storage cabinet with multiple safety protections according to claim 2, characterized in that: The bottom end of the toothed rod is provided with a positioning hole, and a second limiting post is provided on one side of the positioning hole. The second limiting post is slidably connected inside the energy storage cabinet and can be inserted into the positioning hole. A pushing component is provided on one side of the second limiting post.

5. A photovoltaic energy storage cabinet with multiple safety protections according to claim 4, characterized in that: The propulsion assembly includes a second heat-absorbing plate installed on both sides inside the energy storage box. The second heat-absorbing plate is filled with water. A second output pipe is fixed to one side of the second heat-absorbing plate. A second connecting cylinder is fixed to the bottom end of the second output pipe. The second connecting cylinder is inserted into the second limiting post.

6. A photovoltaic energy storage cabinet with multiple safety protections according to claim 4, characterized in that: A second spring is fixed to the outside of the second limiting post, and the other end of the second spring is fixedly connected to the energy storage cabinet.

7. A photovoltaic energy storage cabinet with multiple safety protections according to claim 1, characterized in that: Both sides of the cabinet door are fixed with side plates, and a tension spring is fixed to one side of the side plate. The other end of the tension spring is fixedly connected to the energy storage cabinet. A sliding hole is opened on one side of the side plate. The pushing component also includes a first limiting post disposed on one side of the side plate. The first limiting post is slidably connected to both sides of the energy storage cabinet. A first connecting cylinder is slidably connected inside the first limiting post. A first output pipe is fixed to one side of the first connecting cylinder. The bottom end of the first output pipe is fixedly connected to the second heat absorption plate. A pull rope is fixed to one side of the first limiting post. When the first limiting post is inserted into the sliding hole, the maximum rotation angle of the cabinet door is 30°.

8. A photovoltaic energy storage cabinet with multiple safety protections according to claim 7, characterized in that: A mounting base is fixed to one side of the cabinet door, and a fire extinguisher is installed on the top of the mounting base. Multiple nozzles are evenly spaced on the side of the cabinet door away from the mounting base, and the nozzles are connected to the mounting base.

9. A photovoltaic energy storage cabinet with multiple safety protections according to claim 8, characterized in that: A first heat-absorbing plate is fixed to the side of the cabinet door near the nozzle. The first heat-absorbing plate is filled with water. The bottom end of the mounting base is connected to a connecting shell. A sphere is rotatably connected inside the connecting shell. A fixing shell is fixed to one side of the connecting shell. A rotating cavity is opened inside the fixing shell. A connecting cavity is opened below the rotating cavity. The connecting cavity is connected to the inside of the first heat-absorbing plate through a pipe. A rotating plate is fixed to the rotating end of the sphere's rotating shaft. The rotating plate is rotatably connected inside the rotating cavity.

10. A photovoltaic energy storage cabinet with multiple safety protections according to claim 1, characterized in that: The bottom of the cabinet door is provided with a fixing groove, and the bottom of the energy storage cabinet is slidably connected with an insert block. Both sides of the insert block are fixed with a first spring, which is fixedly connected to the energy storage cabinet. The bottom of the insert block extends out from inside the energy storage cabinet.

Images