Thermal runaway battery fire-fighting device

Abstract

The utility model discloses a fire-fighting device for a thermal runaway battery, which belongs to the technical field of battery replacement equipment, comprises a fire-fighting water tank and a battery bracket for receiving the thermal runaway battery, and is characterized in that a mounting bracket is arranged at the top of the fire-fighting water tank, and at least two portal frames are arranged along the length direction of the battery bracket; limiting hooks for limiting the portal frames are arranged between the installation support and the portal frames, and the installation support is further provided with a limiting removing assembly which drives the limiting hooks to rotate so as to remove limiting of the portal frames by the limiting hooks and enable the battery bracket to fall into the fire water tank under the action of gravity. According to the utility model, the battery bracket is limited through the limiting hook, so that the thermal runaway battery can be moved to the battery bracket, and the thermal runaway battery falls into the fire-fighting water tank for treatment through gravity after the limitation of the battery bracket is relieved, and the rapid treatment of the thermal runaway battery can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of battery swapping equipment technology, specifically relating to a thermal runaway battery fire suppression device. Background Technology

[0002] With the development of new energy technologies, more and more cars are using batteries as their power source. Electric vehicles can be recharged in two ways: charging and battery swapping. To save charging time, electric vehicles, such as logistics vehicles and light trucks, mostly use battery swapping. Drivers take their vehicles to the nearest battery swapping station to exchange the battery.

[0003] To meet the high demand for battery replacements, battery swapping stations typically store a large number of batteries. Improper storage or unavoidable thermal runaway risks during charging can easily lead to fires or even explosions.

[0004] Current technologies for handling thermal runaway batteries typically involve transferring the battery to a specialized device, followed by lifting or flipping it before it can be placed into a fire water tank. Both lifting and flipping methods are time-consuming and not conducive to the rapid handling of thermal runaway batteries. Summary of the Invention

[0005] The problem this utility model aims to solve is to provide a thermal runaway battery fire-fighting device. After the battery as a whole enters the battery holder, the limit of the battery holder is released, and the battery quickly falls into the fire water tank under the action of gravity. The whole process is short and can realize the rapid handling of thermal runaway batteries.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a thermal runaway battery fire-fighting device, including a fire water tank and a battery bracket for receiving thermal runaway batteries. The key feature is that: an installation bracket is provided on the top of the fire water tank, and at least two gantry frames are arranged along the length of the battery bracket. A limiting hook is provided between the installation bracket and each gantry frame to limit the movement of the gantry frame. A limiting release component is provided on the installation bracket to drive the limiting hook to rotate, thereby releasing the limiting hook from limiting the gantry frame and allowing the battery bracket to fall into the fire water tank under the action of gravity.

[0007] Furthermore, vertical limiting strips are provided on both sides of the gantry frame, and limiting grooves that cooperate with the limiting strips are provided on the inner wall of the fire water tank.

[0008] Furthermore, the gantry frame is provided with a contact plate that contacts the limiting part of the limiting hook.

[0009] Furthermore, a damping component is provided between the mounting bracket and each gantry frame to slow down the movement speed of the battery bracket into the fire water tank after the limit is released. The damping component includes a pulley and a damping part set on the mounting bracket, and a steel wire with one end connected to the damping part and the other end passing around the pulley and connected to the gantry frame.

[0010] Furthermore, the battery bracket includes two longitudinal beams arranged side by side and multiple crossbeams connecting the two longitudinal beams. The two ends of the gantry frame are respectively connected to the two longitudinal beams. An end positioning block for positioning the end of the thermal runaway battery is provided on the crossbeam located at the end of the longitudinal beam and / or a limiting plate for positioning the bottom locking pin of the thermal runaway battery is provided on the longitudinal beam.

[0011] Furthermore, a connecting seat is provided on the mounting bracket, and the limiting hook is hinged to the connecting seat.

[0012] Furthermore, the connecting part of the limiting hook is located in the mounting groove of the connecting seat, and the middle part of the connecting part is hinged to the connecting seat.

[0013] Furthermore, the limit release assembly includes a linear drive device with its two ends connected to the mounting bracket and the limit hook, respectively.

[0014] Furthermore, the limit release assembly includes a drive rod that is slidably limited on the mounting bracket and connected to all limit hooks, a connecting rod that connects the drive rod and the limit hooks, a spring that is fitted on the drive rod and limited between the connecting rod and the mounting bracket, and a drive plate that is fixed to the drive end of the drive rod and slidably limited on the mounting bracket.

[0015] Furthermore, the limiting hook and the matching connecting seat are symmetrically arranged in two sets on the mounting bracket with the driving rod as the center of symmetry. The two ends of the connecting rod are respectively limited in the long groove of the connecting part. The driving rod passes through the connecting rod and is connected to the connecting rod by means of connecting bolts.

[0016] The beneficial effects of this utility model are: 1. By limiting the battery bracket with a limiting hook, the thermal runaway battery can be moved onto the battery bracket, and after the limiting hook is released, it falls into the fire water tank by gravity for treatment, which can achieve rapid treatment of thermal runaway batteries; 2. A damping component is designed between the mounting bracket and the gantry to prevent the battery bracket from falling rapidly and causing water in the fire water tank to splash out of the tank; 3. The limiting hook can be released from the limiting state of the battery bracket through a mechanical structure, which has good reliability.

[0017] The present invention will now be described in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the thermal runaway battery fire-fighting device of this utility model;

[0019] Figure 2 This is another structural schematic diagram of the thermal runaway battery fire-fighting device of this utility model;

[0020] Figure 3 This is a schematic diagram showing the connection between the limit hook and the mounting bracket in the thermal runaway battery fire-fighting device of this utility model;

[0021] Figure 4 This is a schematic diagram of the limiting hook in the thermal runaway battery fire-fighting device of this utility model;

[0022] Figure 5 yes Figure 1 A schematic diagram of the structure after removing the battery tray;

[0023] Figure 6 This is a schematic diagram of the battery bracket in the thermal runaway battery fire-fighting device of this utility model.

[0024] In the attached diagram, 1. Fire water tank; 1-1. Limiting groove; 2. Battery bracket; 2-1. Longitudinal beam; 2-2. Cross beam; 3. Mounting bracket; 4. Limiting hook; 4-1. Limiting part; 4-2. Connecting part; 4-3. Long groove; 5. Gantry frame; 6. Limiting strip; 7. Contact plate; 8. Pulley; 9. Damping component; 10. Steel wire; 11. End positioning block; 12. Limiting plate; 13. Guide strip; 14. Connecting seat; 14-1. Mounting groove; 15. Drive rod; 16. Connecting rod; 17. Spring; 18. Drive plate. Detailed Implementation

[0025] See appendix Figure 1-6 This invention provides a thermal runaway battery fire suppression device, including a fire water tank 1 and a battery holder 2 for receiving the thermal runaway battery. A mounting bracket 3 is provided on the top of the fire water tank 1 to mount a limiting hook 4, thereby limiting the battery holder 2. At least two gantry frames 5 are arranged along the length of the battery holder 2 to ensure stable limiting of the battery holder 2 via the gantry frames 5. The thermal runaway battery can pass through the space formed by the gantry frames 5 and the battery holder 2 to allow the battery to enter the battery holder 2 as a whole. A limiting hook 4 is provided between the mounting bracket 3 and each gantry frame 5 to limit the gantry frame 5. A limit release component is also provided on the mounting bracket 3 to drive the limiting hook 4 to rotate, thereby releasing the limiting hook 4 from limiting the gantry frame 5 and allowing the battery holder 2 to fall into the fire water tank 1 under gravity. By limiting the gantry frame 5 with the limiting hook 4, the thermal runaway battery can enter the battery holder 2. Once the battery is fully inserted into the battery holder 2, the limit release component releases the limit on the gantry 5, allowing the battery holder 2 and the thermal runaway battery to quickly fall into the fire water tank 1 under the action of gravity, thus achieving rapid handling of the thermal runaway battery.

[0026] See appendix Figure 1 , 5 To ensure that the battery bracket 2 falls into the fire water tank 1 in a predetermined direction, vertical limiting strips 6 are provided on both sides of the gantry frame 5, and limiting grooves 1-1 are provided on the inner wall of the fire water tank 1 to cooperate with the limiting strips 6 to form a guide structure. When the gantry frame 5 is in the limiting state, the end of the limiting strip 6 is located in the limiting groove 1-1 to ensure that the gantry frame 5 moves vertically downward along the limiting groove 1-1 after the limiting is released.

[0027] See appendix Figure 3 and 4 The limiting hook 4 includes a horizontally positioned limiting part 4-1 and a vertically positioned connecting part 4-2. The limiting part 4-1 is used to limit the gantry frame 5. To facilitate limiting with the limiting hook 4, a contact plate 7 is provided on the gantry frame 5 to contact the limiting part 4-1 of the limiting hook 4. The connecting part 4-2 is used to connect with the mounting bracket 3. A connecting seat 14 is provided on the mounting bracket 3, and the limiting hook 4 is hinged to the connecting seat 14. Specifically, the connecting part 4-2 is located in the mounting groove 14-1 of the connecting seat 14, and the middle part of the connecting part 4-2 is hinged to the connecting seat 14 via a hinge shaft.

[0028] See appendix Figure 1 and 2 To prevent the battery bracket 2 and the thermal runaway battery from falling rapidly and splashing water out of the fire water tank 1, damping components are provided between the mounting bracket 3 and each gantry 5 to slow down the movement of the battery bracket 2 into the fire water tank 1 after the limit is released. The damping components include pulleys 8 and damping parts 9 mounted on the mounting bracket 3, and a steel wire 10 with one end connected to the damping part 9 and the other end passing over the pulley 8 and connected to the gantry 5. In this embodiment, each gantry 5 is equipped with two sets of damping components. The damping part 9 is a gas spring. Furthermore, different numbers of damping components can be configured according to the overall weight of the battery bracket 2 and the thermal runaway battery.

[0029] See appendix Figure 6 The aforementioned battery bracket 2 includes two longitudinal beams 2-1 arranged side by side and multiple crossbeams 2-2 connecting the two longitudinal beams 2-1. The two ends of the gantry 5 are respectively connected to the outer sides of the two longitudinal beams 2-1. An end positioning block 11 for positioning the end of the thermal runaway battery is provided on the crossbeam 2-2 located at the end of the longitudinal beams 2-1. Furthermore, a limiting plate 12 for limiting the locking pin in the thermal runaway battery can be provided on each longitudinal beam 2-1 to cooperate with the end positioning block 11 to prevent the thermal runaway battery from moving on the battery bracket 2 during descent. Guide strips 13 are also connected to all crossbeams 2-2 to cooperate with the rollers at the bottom of the battery to provide guidance.

[0030] Example 1 of Limit Release Component: In this embodiment, the limit release component includes a linear drive device with its two ends connected to the mounting bracket 3 and the limit hook 4, respectively. The linear drive device can be an electric push rod, a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, or other components. By synchronously driving the corresponding limit hook 4 to rotate through the matching linear drive device, the limit on the gantry 5 and the limit release are achieved.

[0031] Example 2 of Limit Release Component: In this example, the limit release component adopts a mechanical structure. The limit hook 4 is driven to rotate by external force to release the limit on the gantry 5, making the whole device more reliable and preventing the drive components under electrical control from failing to drive.

[0032] The aforementioned limit release assembly includes a drive rod 15 that slides and limits on the mounting bracket 3 and connects all limit hooks 4, a connecting rod 16 connecting the drive rod 15 and the limit hooks 4, a spring 17 fitted on the drive rod 15 and limited between the connecting rod 16 and the mounting bracket 3, and a drive plate 18 fixed to the drive end of the drive rod 15 and slidably limited on the mounting bracket 3. Specifically, two sets of limit hooks 4 and matching connecting seats 14 are symmetrically arranged on the mounting bracket 3 with the drive rod 15 as the center of symmetry. The two ends of the connecting rod 16 are respectively limited in the long grooves 4-3 of the connecting part 4-2. The drive rod 15 passes through the connecting rod 16 and is connected to the connecting rod 16 by means of connecting bolts. The function of the spring 17 is to keep the limit hooks 4 in a limited state on the gantry frame 5. Multiple sliding sleeves matching the drive rod 15 are provided on the mounting bracket 3 to facilitate relative sliding of the drive rod 15. The drive plate 18 is connected to the drive rod 15 at its center, and guide rods on both sides are provided to cooperate with the mounting bracket 3 to achieve stable movement of the drive plate 18. In this embodiment, the drive plate 18 is moved towards the mounting bracket 3 by external force, thereby causing the connecting rod 16 to drive all the limit hooks 4 to rotate and release the limit on all the gantry 5. Those skilled in the art can also imagine that a linear drive device is provided between the drive plate 18 and the mounting bracket 3 to drive all the limit hooks 15 through the drive plate 18 and the drive rod 15.

[0033] Since the device for pushing the battery into the battery tray 2 can be the battery push-pull device in the battery swapping equipment, the drive plate 18 can be pushed through the actuator of the battery push-pull device, and the limit hook 4 can be driven to rotate through the drive rod 15 and the connecting rod 16, thereby realizing the release of the limit.

[0034] Taking Embodiment 2 as an example, the working process of the device of this utility model is as follows.

[0035] a. When a battery is found to be in a thermal runaway state, the unlocking device in the battery swapping equipment will first unlock the thermal runaway battery from the battery compartment so that the locking pin in the sliding bracket at the bottom of the battery leaves the limit position. Then, the push-pull device in the battery swapping equipment will pull the battery into the battery swapping equipment.

[0036] b. The battery swapping equipment moves the thermal runaway battery to the battery inlet side of the battery tray 2. The push-pull device in the battery swapping equipment pushes the thermal runaway battery as a whole into the battery tray 2 and is limited by the end positioning block 11. During this process, the unlocking device keeps the locking pin of the locking component in the bottom sliding tray of the battery in an unlocked state. The locking pin is located in the tray and does not affect the movement of the battery into the tray. Subsequently, the unlocking device no longer unlocks the locking component. The locking pin extends out of the sliding tray under the action of the matching spring, thereby limiting the battery between the positioning block 11 and the limiting plate 12. The push-pull device drives the unlocking device to reset.

[0037] c. The height of the push-pull device of the battery swapping equipment is adjusted, and the drive plate 18 is pushed by the components in the unlocking device to release the limit hook 4 from the gantry 5. Then, under the action of gravity, the battery bracket 2 and the battery fall into the fire water tank 1 for processing.

[0038] It should be noted that the battery swapping equipment used in the above embodiments can also be implemented using battery stacking equipment with related devices.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A thermal runaway battery fire suppression device, comprising a fire water tank (1) and a battery holder (2) for receiving thermal runaway batteries, characterized in that: A mounting bracket (3) is provided on the top of the fire water tank (1), and at least two gantry frames (5) are provided along the length of the battery bracket (2). A limiting hook (4) is provided between the mounting bracket (3) and each gantry frame (5) to limit the gantry frame (5). A limiting release component is provided on the mounting bracket (3) to drive the limiting hook (4) to rotate and release the limiting hook (4) from the gantry frame (5) so that the battery bracket (2) falls into the fire water tank (1) under the action of gravity.

2. The thermal runaway battery fire suppression device according to claim 1, characterized in that: Limiting strips (6) are provided vertically on both sides of the gantry frame (5), and a limiting groove (1-1) that cooperates with the limiting strips (6) is provided on the inner wall of the fire water tank (1).

3. The thermal runaway battery fire suppression device according to claim 1, characterized in that: A contact plate (7) is provided on the gantry frame (5) to contact the limiting part (4-1) of the limiting hook (4).

4. The thermal runaway battery fire suppression device according to claim 1, characterized in that: A damping component is provided between the mounting bracket (3) and each gantry (5) to slow down the movement speed of the battery bracket (2) into the fire water tank (1) after the limit is released. The damping component includes a pulley (8) and a damping component (9) set on the mounting bracket (3), and a steel wire (10) with one end connected to the damping component (9) and the other end passing around the pulley (8) and connected to the gantry (5).

5. The thermal runaway battery fire suppression device according to claim 1, characterized in that: The battery bracket (2) includes two longitudinal beams (2-1) arranged side by side and multiple crossbeams (2-2) connecting the two longitudinal beams (2-1). The two ends of the gantry frame (5) are respectively connected to the two longitudinal beams (2-1). An end positioning block (11) for positioning the end of the thermal runaway battery is provided on the crossbeam (2-2) located at the end of the longitudinal beam (2-1) and / or a limiting plate (12) for positioning the bottom locking pin of the thermal runaway battery is provided on the longitudinal beam (2-1).

6. The thermal runaway battery fire suppression device according to any one of claims 1-5, characterized in that: A connecting seat (14) is provided on the mounting bracket (3), and the limiting hook (4) is hinged to the connecting seat (14).

7. The thermal runaway battery fire suppression device according to claim 6, characterized in that: The connecting part (4-2) of the limiting hook (4) is located in the mounting groove (14-1) of the connecting seat (14), and the middle part of the connecting part (4-2) is hinged to the connecting seat (14).

8. The thermal runaway battery fire suppression device according to claim 6, characterized in that: The limit release assembly includes a linear drive device whose two ends are respectively connected to the mounting bracket (3) and the limit hook (4).

9. The thermal runaway battery fire suppression device according to claim 6, characterized in that: The limit release assembly includes a drive rod (15) that slides on the mounting bracket (3) and connects all the limit hooks (4), a connecting rod (16) that connects the drive rod (15) and the limit hooks (4), a spring (17) that is fitted on the drive rod (15) and limited between the connecting rod (16) and the mounting bracket (3), and a drive plate (18) that is fixed to the drive end of the drive rod (15) and slides on the mounting bracket (3).

10. The thermal runaway battery fire suppression device according to claim 9, characterized in that: The limiting hook (4) and the matching connecting seat (14) are symmetrically arranged in two sets on the mounting bracket (3) with the driving rod (15) as the center of symmetry. The two ends of the connecting rod (16) are respectively limited in the long groove (4-3) of the connecting part (4-2). The driving rod (15) passes through the connecting rod (16) and is connected to the connecting rod (16) by means of connecting bolts.

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