An energy storage type charging device
Patent Information
- Application Number
- CN202610960943.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-30
- Publication Date
- 2026-09-25
AI Technical Summary
[0004]本发明的目的是针对背景技术中存在储能电池火灾难控的问题，提出一种储能式充电装置
本发明通过柔性气囊内相变灭火液体与囊体配合，实现电池组柔性缓冲吸能及均温散热，有效吸收冲击并延缓电池老化；同时通过设定氟橡胶储液层熔点，在热失控时触发柔性气囊破裂，结合弹性补偿机构释放存液管高压液体快速喷淋，实现明火高效扑灭与防蔓延，显著提升装置安全性与可靠性。
Smart Images
Figure CN122822941A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of battery protection technology, and in particular to an energy storage charging device. Background Technology
[0002] Energy storage charging devices are charging facilities that integrate energy storage and supply functions. Their core is the built-in energy storage unit. This device can store energy when the grid load is low and release the stored energy when the electricity demand is high or when the grid cannot directly supply power, so as to quickly charge electric vehicles and other equipment. Such devices can alleviate the instantaneous pressure on the grid, improve the absorption capacity of renewable energy, and are suitable for scenarios with weak grid coverage. They have the advantages of load regulation and improved power supply reliability.
[0003] However, the core component (battery) of such devices poses a fire risk during use. Most existing designs lack targeted and efficient fire extinguishing systems. Once the battery catches fire due to a malfunction, the fire spreads rapidly, is difficult to extinguish, and is prone to reignition, posing a significant safety hazard. Therefore, this application proposes an energy storage charging device. Summary of the Invention
[0004] The purpose of this invention is to address the problem of fire control of energy storage batteries in the background art by proposing an energy storage charging device.
[0005] The technical solution of the present invention: An energy storage charging device includes a housing and a charging gun. A battery pack is disposed inside the housing. A connector one is installed on the outside of the battery pack. A connector two is inserted into the inside of connector one. The output end of connector two is connected to a converter. The output end of the converter is connected to the charging gun. The device also includes: Two rigid back plates are located at the top and bottom of the battery pack, respectively. A connecting box is fixed to one side of each rigid back plate that is facing away from each other. A connecting plate is fixed inside the connecting box. Multiple independent flexible airbags are fixed inside the connecting plate. The flexible airbags are filled with phase change fire extinguishing liquid. An adjustment mechanism used to control the height of the rigid backplate, enabling the flexible airbag to precisely compress the battery pack. A liquid storage tube is fixed to the side of the connection box away from the battery pack. An injection port for filling phase change fire extinguishing liquid is opened on the outside of the liquid storage tube. A one-way valve is installed inside the injection port. And an elastic compensation mechanism is installed inside the liquid storage tube. The elastic compensation mechanism is used to control the internal pressure of the liquid storage tube so that when the flexible airbag ruptures, the phase change fire extinguishing liquid is quickly sprayed onto the surface of the battery pack.
[0006] Optionally, the elastic compensation mechanism includes a piston plate, a piston rod, a fixed plate, and a spring. The piston plate is slidably connected to the inner wall of the liquid storage tube. The piston rod is fixedly connected to the piston plate and slides through the liquid storage tube to the outside of the liquid storage tube. The end of the piston rod away from the piston plate is fixedly connected to the fixed plate. The spring is fixedly connected between the liquid storage tube and the fixed plate.
[0007] Optionally, the adjustment mechanism includes a concave plate, two sets of screws, a throttle, and two sets of guide rods. The concave plate is fixedly connected to the inner wall of the housing. The two sets of screws are rotatably connected to two sets of rigid back plates, and both sets of screws are threadedly connected to the concave plate. The throttle is fixedly connected to the end of the screw away from the rigid back plate. Both sets of guide rods are fixedly connected to the inner wall of the concave plate, and the guide rods slide through the two sets of rigid back plates.
[0008] Optionally, side plates are fixed to the outer sides of the two sets of guide rods, and fixing blocks are fixed to the top and bottom of the side plates. Fixing blocks are fixed to the outer sides of the battery pack. Traction ropes are sleeved inside the two sets of fixing blocks, and the middle section of the traction ropes passes through fixing blocks.
[0009] Optionally, the top and bottom ends of the second connector are provided with clamping plates, and the two sets of clamping plates are connected by four bolts through a common thread. The periphery of the fixing plate is provided with a release mechanism, which is used to control the movement of the clamping plates that hold the second connector, so that the second connector is disengaged from the connection with the first connector.
[0010] Optionally, the unlocking mechanism includes a horizontal plate, a triangular block, two sets of guide blocks, a second guide rod, and a transmission rod. The horizontal plate is connected to a fixed plate. The two sets of guide blocks are respectively fixed to both sides of the triangular block. The second guide rod slides through the guide block. The end of the second guide rod away from the guide block is fixed to the inner wall of the housing. The transmission rod is fixed between the clamping plate and the triangular block.
[0011] Optionally, a baffle is fixed to one end of the guide rod two near the guide block, and the diameter of the baffle is larger than the diameter of the guide rod two.
[0012] Optionally, a groove is provided at the end of the horizontal plate away from the fixed plate, and a wheel is rotatably connected inside the groove.
[0013] Optionally, a guide rod three is fixedly connected to the end of the connecting box away from the battery pack, and the guide rod three slides through the horizontal plate.
[0014] Optionally, the rigid backplate is integrally stamped from an insulating rigid sheet material. The rigid backplate is provided with several weight-reducing holes, and the edges of the rigid backplate are provided with rounded corner transition structures to prevent scratching the flexible airbag and battery pack casing.
[0015] Compared with the prior art, this application includes at least one of the following beneficial technical effects: This invention utilizes a flexible airbag containing a phase-change extinguishing liquid to achieve flexible buffering and energy absorption of the battery pack, as well as uniform heat dissipation, effectively absorbing impact and delaying battery aging. Simultaneously, by setting the melting point of the fluororubber reservoir, the flexible airbag is triggered to rupture in the event of thermal runaway. Combined with an elastic compensation mechanism, the high-pressure liquid in the reservoir tube is released for rapid spraying, achieving efficient extinguishing of open flames and preventing their spread, significantly improving the safety and reliability of the device.
[0016] Furthermore, the clamping plate spacing is adjusted by bolts to achieve a stable clamping of connector two. Combined with the release mechanism, when the flexible airbag ruptures, the clamping plate is automatically controlled to drive connector two to separate from connector one, thereby quickly cutting off the charging connection when the battery pack experiences thermal runaway, effectively preventing the risk of continuous power transmission from escalating, and significantly improving the safety and reliability of the device. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of an energy storage charging device; Figure 2 This is a cross-sectional schematic diagram of the shell; Figure 3 A schematic diagram of the charging gun and converter; Figure 4 This is a schematic diagram of a battery pack explosion. Figure 5 This is a cross-sectional schematic diagram of the rigid back plate, connecting box, and concave plate; Figure 6 This is a cross-sectional view of the connecting box and the liquid storage tube; Figure 7 A schematic diagram of the structure of fixing block one, fixing block two, and traction rope; Figure 8 This is a structural diagram of the horizontal plate and guide rod three; Figure 9 for Figure 8 A magnified structural diagram at point A; Figure 10 for Figure 8 A magnified structural diagram at point B.
[0018] Reference numerals: 1. Housing; 2. Charging gun; 3. Battery pack; 4. Connector 1; 5. Connector 2; 6. Converter; 7. Rigid back plate; 8. Connecting box; 9. Connecting plate; 10. Flexible airbag; 11. Liquid storage tube; 12. Injection port; 13. Piston plate; 14. Piston rod; 15. Fixing plate; 16. Spring; 17. Concave plate; 18. Screw; 19. Turning handle; 20. Guide rod 1; 21. Side plate; 22. Fixing block 1; 23. Fixing block 2; 24. Traction rope; 25. Clamping plate; 27. Bolt; 28. Horizontal plate; 29. Triangular block; 30. Guide block; 31. Guide rod 2; 32. Transmission rod; 33. Baffle; 34. Slide groove; 35. Rotary wheel; 36. Guide rod 3; 37. Weight reduction hole; 40. Adjustment mechanism; 41. Elastic compensation mechanism; 42. Unlocking mechanism. Detailed Implementation
[0019] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0020] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.
[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0022] like Figure 1 , Figure 2 and Figure 4As shown, the present invention proposes an energy storage charging device, including a housing 1 and a charging gun 2. The housing 1 protects its internal structure, while the charging gun 2 can be connected to external devices such as electric vehicles. A battery pack 3 is installed inside the housing 1, and a connector 4 is installed on the outside of the battery pack 3. A connector 5 is inserted into the inside of the connector 4. The output end of the connector 5 is connected to a converter 6. The battery pack 3 transmits power to the converter 6 through the connector 4 and the connector 5. The output end of the converter 6 is connected to the charging gun 2. The converter 6 then converts the power from the battery pack 3 into a specification suitable for charging external devices, and finally transmits it to electric vehicles or other devices through the charging gun 2. It should be noted that the charging gun 2, battery pack 3, connector 4, connector 5, and converter 6 are all conventional technologies in existing charging devices and are mature technologies, which will not be elaborated further.
[0023] As one implementation method, such as Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the energy storage charging device also includes two rigid back plates 7 located at the top and bottom of the battery pack 3, respectively. A connecting box 8 is fixed to one side of each of the two rigid back plates 7 facing away from each other. A connecting plate 9 is fixed inside the connecting box 8. Multiple independent flexible airbags 10 are fixed inside the connecting plate 9. The rigid back plate 7 is integrally stamped from an insulating rigid plate. The rigid back plate 7 is provided with several weight-reducing holes 37, which are evenly distributed to reduce the overall weight of the device while ensuring structural strength. The edges of the rigid back plate 7 are provided with rounded corner transition structures to prevent scratching the flexible airbags 10 and the outer shell of the battery pack 3. The flexible airbag 10 adopts a double-layer sealing structure. The inner layer is a fluororubber liquid storage layer with a melting point of 90°C. The outer layer is a high-temperature resistant silicone wear-resistant protective layer. The interior of the flexible airbag 10 is filled with a phase change fire extinguishing liquid, which is a water-based flame retardant liquid.
[0024] Furthermore, such as Figure 3 and Figure 5 As shown, the energy storage charging device also includes an adjustment mechanism 40 for controlling the height of the rigid back plate 7 so that the flexible airbag 10 can precisely squeeze the battery pack 3. When fixing the position of the battery pack 3, the distance between the two sets of rigid back plates 7 is first adjusted by the adjustment mechanism 40. When the two sets of rigid back plates 7 are in motion, multiple sets of flexible airbags 10 will move synchronously through the connecting box 8 and the connecting plate 9. Finally, when the flexible airbag 10 squeezes the battery pack 3, the position of the battery pack 3 can be fixed and limited. Normal operating conditions: When the battery pack 3 is charging and discharging normally, and the battery pack 3 experiences slight shaking or equipment vibration, the phase change extinguishing liquid inside the flexible airbag 10 works in conjunction with the flexible airbag 10 itself to achieve flexible buffering and absorb impact energy; secondly, the phase change extinguishing liquid has a passive heat conduction function, which can conduct the heat on the surface of the battery pack 3 to the connecting box 8 for dissipation, achieving uniform heat dissipation of the battery pack 3 and slowing down the aging of the battery pack 3. Fire extinguishing operation: When the battery pack 3 experiences thermal runaway and catches fire, the open flame directly burns the flexible airbag 10. At this time, the temperature reaches 90℃, and the flexible airbag 10 will rupture. At this time, the liquid will flow precisely to the surface of the battery pack 3, and the liquid will cool down and extinguish the fire at the fire site of the battery pack 3, thereby achieving the function of quickly extinguishing the open flame and preventing the accident from spreading.
[0025] Furthermore, such as Figure 3 , Figure 5 and Figure 6 As shown, the energy storage charging device also includes a liquid storage pipe 11 fixed to the side of the connecting box 8 away from the battery pack 3 and an elastic compensation mechanism 41 disposed inside the liquid storage pipe 11. An injection port 12 for filling with phase change extinguishing liquid is provided on the outer side of the liquid storage pipe 11. When filling the flexible airbag 10 with phase change extinguishing liquid, it can be filled through the injection port 12. The liquid filled into the liquid storage pipe 11 will eventually enter the flexible airbag 10 through the connecting box 8. A one-way valve is installed inside the injection port 12. As a mature existing technology, the one-way valve can prevent liquid leakage. In the current backflow situation; the elastic compensation mechanism 41 is used to control the internal pressure of the liquid storage tube 11, so that when the flexible airbag 10 is damaged, the phase change fire extinguishing liquid will be quickly sprayed onto the surface of the battery pack 3. In the initial state, the elastic compensation mechanism 41 ensures that the internal pressure of the liquid storage tube 11 is constant. When one or more flexible airbags 10 are burned by the burning battery pack 3, the elastic compensation mechanism 41 will instantly release the pressure inside the liquid storage tube 11 from the damaged part of the flexible airbag 10. At this time, the high-pressure liquid will be instantly sprayed onto the burning battery pack 3, thereby accelerating the fire extinguishing speed and improving the safety of the device during use.
[0026] As one implementation method, such as Figure 3 , Figure 5 and Figure 6 As shown, the elastic compensation mechanism 41 includes a piston plate 13, a piston rod 14, a fixed plate 15, and a spring 16. The elastic compensation mechanism 41 is described in detail below: The piston plate 13 is slidably connected to the inner wall of the liquid storage tube 11. When liquid is injected into the liquid storage tube 11 through the injection port 12 and fills the inside of the liquid storage tube 11 below the piston plate 13, the liquid continues to fill, squeezing the piston plate 13 and forcing it to move away from the connecting box 8. The piston rod 14 is fixedly connected to the piston plate 13 and slides through the liquid storage tube 11, extending to the outside of the liquid storage tube 11. A fixing plate 15 is fixedly connected to the end of the piston rod 14 away from the piston plate 13. The movement of the piston plate 13 will cause the fixing plate 15 to move through the piston rod 14. The spring 16 is fixedly connected between the liquid storage tube 11 and the fixing plate 15. The movement of the fixing plate 15 will pull the spring 16, causing the spring 16 to deform under force. The elastic potential energy is generated. When one or more flexible airbags 10 rupture, the pressure inside the liquid storage tube 11 can no longer remain constant. The spring 16 will release the elastic potential energy and pull the fixing plate 15 to reset. The reset of the fixing plate 15 will drive the piston plate 13 to reset through the piston rod 14. It should be noted that when initially filling the fire extinguishing liquid, the liquid is injected through the injection port 12 to ensure that the internal space of the liquid storage tube 11, the connecting box 8 and the flexible airbag 10 are filled with liquid, forming a liquid-tight communicating cavity without air gaps. Therefore, when the piston plate 13 is reset and pushed forward, it fits tightly against the inner wall of the liquid storage tube 11 and directly squeezes the incompressible liquid in the communicating cavity. The liquid then forms a high-pressure jet through the rupture of the flexible airbag 10 and is quickly sprayed onto the surface of the battery pack 3 to achieve efficient fire extinguishing.
[0027] Furthermore, such as Figure 3 and Figure 5 As shown, the adjustment mechanism 40 includes a concave plate 17, two sets of screws 18, a throttle 19, and two sets of guide rods 20. The adjustment mechanism 40 is described in detail below: The concave plate 17 is fixedly connected to the inner wall of the housing 1. Two sets of screws 18 are rotatably connected to two sets of rigid back plates 7, and both sets of screws 18 are threadedly connected to the concave plate 17. A handle 19 is fixedly connected to the end of the screw 18 away from the rigid back plate 7. When adjusting the distance between the two sets of rigid back plates 7, the two handles 19 can be rotated. The handles 19 are designed to facilitate hand exertion. When the handles 19 are rotated, they move along the interior of the concave plate 17, and the movement of the concave plate 17 causes the rigid back plate 7 to move. The two sets of guide rods... Both 20 are fixed to the inner wall of the concave plate 17, and the guide rod 20 slides through the two sets of rigid back plates 7. Under the guidance of the two sets of guide rods 20, the stability of the rigid back plate 7 when moving is improved. Finally, when the rigid back plate 7 moves, the rigid back plate 7 can also drive the liquid-filled flexible airbag 10 to squeeze the battery pack 3 through the connecting box 8 and the connecting plate 9, and fix the battery pack 3. Conversely, if the handle 19 is turned in the opposite direction, the rigid back plate 7 can be driven away from the battery pack 3, so that the flexible airbag 10 can release the fixation of the battery pack 3.
[0028] Furthermore, such as Figure 7 As shown, side plates 21 are fixed to the outer sides of the two sets of guide rods 20, and the guide rods 20 support the side plates 21. Fixing blocks 22 are fixed to the top and bottom of the side plates 21. Fixing blocks 23 are fixed to the outer side of the battery pack 3. Traction ropes 24 are sleeved inside the two sets of fixing blocks 22. The middle section of the traction rope 24 passes through the fixing blocks 23. The traction rope 24 can connect the battery pack 3 to the side plates 21 through the fixing blocks 23 and the two sets of fixing blocks 22. At this time, after the flexible airbag 10 ruptures, that is, when the flexible airbag 10 releases the fixation of the battery pack 3, the traction rope 24 can still provide traction for the battery pack 3, preventing the battery pack 3 from shaking and falling, and preventing the falling battery pack 3 from damaging other electronic components inside the casing 1.
[0029] As one implementation method, such as Figure 8 Figure 9 and Figure 10 As shown, clamping plates 25 are provided at both the top and bottom of the second connector 5. Four bolts 27 are threadedly connected to the interior of both sets of clamping plates 25. These four bolts 27 allow adjustment of the distance between the two sets of clamping plates 25, enabling them to be adjusted to a suitable position and clamp and fix the second connector 5. A release mechanism 42 is provided around the fixing plate 15. This release mechanism 42 controls the movement of the clamping plates 25 holding the second connector 5, disengaging the second connector 5 from the first connector 4. Subsequently, when the flexible airbag 10 ruptures, the spring 16 releases its elastic potential energy, pulling the fixing plate 15 towards the battery pack 3. At this time, the fixing plate 15 controls the release mechanism 42 to operate. When 42 is activated, it controls the clamping plate 25 to move away from the connector 4. Since the two clamping plates 25 are clamping the connector 5, when the clamping plates 25 move, they will also drive the connector 5 to move synchronously. At this time, the movement of the connector 5 will disengage it from the connector 4 (the connectors 4 and 5 use a conventional plug-in connection). This prevents the battery pack 3 from being powered through the connectors 4 and 5 even when it is on fire, thus improving the safety of the device. It should be noted that the elastic potential energy released by the spring 16 is sufficient to overcome the friction of the release mechanism 42 and the clamping plate 25 when they move, as well as the friction of the connectors 4 and 5 when they are connected.
[0030] Furthermore, such as Figure 8 , Figure 9 and Figure 10 As shown, the unlocking mechanism 42 includes a horizontal plate 28, a triangular block 29, two sets of guide blocks 30, a guide rod 31, and a transmission rod 32. The unlocking mechanism 42 is described in detail below: The horizontal plate 28 is connected to the fixed plate 15. When the fixed plate 15 moves, it drives the horizontal plate 28 to move synchronously. A groove 34 is provided at the end of the horizontal plate 28 away from the fixed plate 15. A rotating wheel 35 is rotatably connected inside the groove 34. The movement of the horizontal plate 28 will drive the rotating wheel 35 to move. Two sets of guide blocks 30 are respectively fixed to both sides of the triangular block 29. As the rotating wheel 35 moves, it will contact the inclined surface of the triangular block 29 and apply pressure to the inclined surface of the triangular block 29. The second guide rod 31 slides through the guide block 30. The second guide rod 31 moves away from the guide block. One end of 30 is fixed to the inner wall of the housing 1. At this time, the triangular block 29 will move along the outside of the guide rod 31 through the guide block 30 when it is under force. When the rotating wheel 35 squeezes the triangular block 29 to move, the rotating wheel 35 will also rotate along the edge of the triangular block 29, thereby reducing the friction when the two are in contact and improving the service life of the device. The transmission rod 32 is fixed between the clamping plate 25 and the triangular block 29. Finally, when the triangular block 29 moves, it will drive the transmission rod 32 to move, so that the transmission rod 32 drives the clamping plate 25 to move, and drives the clamping plate 25 to drive the connector 2 5 to disengage from the connector 1 4.
[0031] Furthermore, such as Figure 10 As shown, a baffle 33 is fixedly connected to one end of the guide rod 31 near the guide block 30. The diameter of the baffle 33 is larger than the diameter of the guide rod 31. The baffle 33 can prevent the unlocking mechanism 42 from disengaging from the outside of the guide rod 31, thus avoiding the situation where the triangular block 29 falls off and cannot work in coordination with the horizontal plate 28.
[0032] In addition, such as Figure 8 As shown, a guide rod 36 is fixedly connected to the end of the connecting box 8 away from the battery pack 3. The guide rod 36 slides through the horizontal plate 28. The guide rod 36 can guide the movement of the horizontal plate 28, so that the horizontal plate 28 can only move up and down, avoiding the horizontal plate 28 from shaking and improving the stability of the device during use.
[0033] In this embodiment, firstly, by rotating the throttle 19, the drive screw 18 is driven to bring the two sets of rigid back plates 7 closer together. The rigid back plates 7, through the connecting box 8 and the connecting plate 9, cause the flexible airbag 10, which is filled with phase change extinguishing liquid, to precisely squeeze the battery pack 3, thereby fixing and limiting the battery pack 3. At the same time, phase change extinguishing liquid is injected into the liquid storage tube 11 through the injection port 12. The liquid enters the flexible airbag 10 through the connecting box 8. During the filling process, the liquid squeezes the piston plate 13, causing it to move away from the connecting box 8. The piston plate 13, through the piston rod 14, drives the fixing plate 15 to stretch the spring 1. 6. The system stores elastic potential energy, thus maintaining a constant pressure inside the liquid storage tube 11. Under normal operating conditions, the battery pack 3 is charged and discharged normally, transmitting power to the converter 6 via connector 4 and connector 5. The converter 6 converts the power to the appropriate specifications and then supplies it to the outside via the charging gun 2. Simultaneously, the phase change extinguishing liquid inside the flexible airbag 10 works with the airbag body to achieve flexible buffering to absorb impact energy and passively conducts heat from the surface of the battery pack 3 to the connecting box 8 for dissipation. When the battery pack 3 catches fire, the open flame burns the flexible airbag 10 until its temperature reaches 90°C. When the inner fluororubber reservoir ruptures, the spring 16 in the elastic compensation mechanism 41 releases its elastic potential energy, pulling the fixed plate 15 back to its original position. The fixed plate 15, through the piston rod 14, drives the piston plate 13 to squeeze the liquid in the reservoir tube 11 near the connecting box 8, causing the high-pressure liquid to be rapidly sprayed from the ruptured flexible airbag 10 onto the surface of the burning battery pack 3 for cooling and fire extinguishing. At the same time, as the fixed plate 15 moves, it drives the horizontal plate 28 in the unlocking mechanism 42 to move synchronously. The rotating wheel 35 at the end of the horizontal plate 28 contacts and squeezes the inclined surface of the triangular block 29. The triangular block 29 moves along the guide block 30. The second rod 31 moves and drives the clamping plate 25 to move away from the first connector 4 via the transmission rod 32. Since the clamping plate 25 clamps and fixes the second connector 5 by the bolt 27, the second connector 5 is disengaged from the plug-in connection with the first connector 4, cutting off the power transmission circuit of the battery pack 3. In addition, the traction rope 24 connects the battery pack 3 to the side plate 21 through the first fixing block 22 and the second fixing block 23. After the flexible airbag 10 ruptures and releases the fixation of the battery pack 3, the traction rope 24 provides traction for the battery pack 3, preventing it from shaking and falling and damaging other electronic components inside the housing 1.
[0034] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An energy storage charging device, comprising a housing (1) and a charging gun (2), wherein a battery pack (3) is disposed inside the housing (1), a connector (4) is mounted on the outside of the battery pack (3), a connector (5) is inserted into the inside of the connector (4), a converter (6) is connected to the output end of the connector (5), and the output end of the converter (6) is connected to the charging gun (2), characterized in that, Also includes: Two rigid back plates (7) are located at the top and bottom of the battery pack (3) respectively. A connecting box (8) is fixed to the opposite side of the two rigid back plates (7). A connecting plate (9) is fixed inside the connecting box (8). Multiple independent flexible airbags (10) are fixed inside the connecting plate (9). The flexible airbags (10) are filled with phase change fire extinguishing liquid. An adjustment mechanism (40) is used to control the height of the rigid backplate (7) so that the flexible airbag (10) can precisely squeeze the battery pack (3). A liquid storage pipe (11) is fixed to the side of the connection box (8) away from the battery pack (3). An injection port (12) for filling phase change fire extinguishing liquid is opened on the outside of the liquid storage pipe (11). A one-way valve is installed inside the injection port (12). And an elastic compensation mechanism (41) is provided inside the liquid storage tube (11). The elastic compensation mechanism (41) is used to control the internal pressure of the liquid storage tube (11) so that when the flexible airbag (10) breaks, the phase change fire extinguishing liquid is quickly sprayed onto the surface of the battery pack (3).
2. The energy storage charging device according to claim 1, characterized in that, The elastic compensation mechanism (41) includes a piston plate (13), a piston rod (14), a fixing plate (15), and a spring (16). The piston plate (13) is slidably connected to the inner wall of the liquid storage tube (11). The piston rod (14) is fixedly connected to the piston plate (13), and the piston rod (14) slides through the liquid storage tube (11) and extends to the outside of the liquid storage tube (11). The end of the piston rod (14) away from the piston plate (13) is fixedly connected to the fixing plate (15). The spring (16) is fixedly connected between the liquid storage tube (11) and the fixing plate (15).
3. The energy storage charging device according to claim 1, characterized in that, The adjustment mechanism (40) includes a concave plate (17), two sets of screws (18), a throttle (19), and two sets of guide rods (20). The concave plate (17) is fixed to the inner wall of the housing (1). The two sets of screws (18) are rotatably connected to the two sets of rigid back plates (7), and both sets of screws (18) are threaded to the concave plate (17). The throttle (19) is fixed to the end of the screw (18) away from the rigid back plate (7). The two sets of guide rods (20) are fixed to the inner wall of the concave plate (17), and the guide rods (20) slide through the two sets of rigid back plates (7).
4. The energy storage charging device according to claim 3, characterized in that, Side plates (21) are fixed to the outer sides of the two sets of guide rods (20). Fixing blocks (22) are fixed to the top and bottom of the side plates (21). Fixing blocks (23) are fixed to the outer side of the battery pack (3). Traction ropes (24) are sleeved inside the two sets of fixing blocks (22). The middle section of the traction ropes (24) passes through the fixing blocks (23).
5. The energy storage charging device according to claim 2, characterized in that, The top and bottom ends of the connector two (5) are provided with clamping plates (25). The two sets of clamping plates (25) are connected by four bolts (27) with common threads. The periphery of the fixing plate (15) is provided with a release mechanism (42). The release mechanism (42) is used to control the movement of the clamping plates (25) that clamp the connector two (5) so that the connector two (5) is disengaged from the connection with the connector one (4).
6. The energy storage charging device according to claim 5, characterized in that, The unlocking mechanism (42) includes a horizontal plate (28), a triangular block (29), two sets of guide blocks (30), a second guide rod (31), and a transmission rod (32). The horizontal plate (28) is connected to the fixed plate (15). The two sets of guide blocks (30) are respectively fixed to both sides of the triangular block (29). The second guide rod (31) slides through the guide block (30). The end of the second guide rod (31) away from the guide block (30) is fixed to the inner wall of the housing (1). The transmission rod (32) is fixed between the clamping plate (25) and the triangular block (29).
7. The energy storage charging device according to claim 6, characterized in that, A baffle (33) is fixed to one end of the guide rod (31) near the guide block (30), and the diameter of the baffle (33) is larger than the diameter of the guide rod (31).
8. The energy storage charging device according to claim 6, characterized in that, The horizontal plate (28) has a groove (34) at one end away from the fixed plate (15), and a wheel (35) is rotatably connected inside the groove (34).
9. The energy storage charging device according to claim 6, characterized in that, The end of the connecting box (8) away from the battery pack (3) is fixed with a guide rod three (36), which slides through the horizontal plate (28).
10. The energy storage charging device according to claim 1, characterized in that, The rigid backplate (7) is integrally stamped from an insulating hard plate. The rigid backplate (7) has several weight-reducing holes (37) and the edges of the rigid backplate (7) have rounded corner transition structures to prevent scratching the flexible airbag (10) and the battery pack (3) shell.