A new energy battery pack processing thermal runaway processing device

Abstract

The application relates to the technical field of thermal runaway processing devices, and discloses a thermal runaway processing device for new energy battery pack processing, which comprises a support frame, a top frame is fixedly installed at the top end of the support frame, a water tank is fixedly installed in the inside of the support frame, the inside of the water tank is filled with brine, and two downward split processing table surfaces are hingedly connected to the top of the top frame. When the battery pack generates thermal runaway, the two downward split processing table surfaces are unlocked through the ratchet support mechanism, so that the battery pack placed on the processing table surface can fall into the water tank, the brine in the water tank can cool the battery pack with thermal runaway, the effect of preventing fire spreading is achieved, compared with the operation mode in the prior art that the battery pack with thermal runaway is sunk into water through an electric lifting platform, the problem that the control system is disabled due to high temperature generated by the battery pack with thermal runaway can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal runaway processing devices, in particular to a thermal runaway processing device for new energy battery pack processing. BACKGROUND

[0002] Thermal runaway is usually caused by internal faults of the battery, such as overcharging, overdischarging, short circuit, internal short circuit or overheating, etc. When the battery temperature is too high, it will cause electrolyte decomposition, gas release and even fire; the thermal runaway processing device in battery pack processing is a key safety measure to prevent or reduce the harm caused by thermal runaway of the battery pack, especially in electric vehicles, power tools and energy storage equipment, thermal runaway of the battery pack may cause fire, explosion and other serious accidents.

[0003] In the prior art, to solve the thermal runaway of the battery pack during processing, a lifting platform is used, once thermal runaway occurs, the lifting platform and the battery pack with thermal runaway are lowered into the water, which plays a role in preventing the spread of fire. They all adopt hydraulic or electric lifting, and in the working condition of thermal runaway, the hydraulic pipeline and the electric wire may be burned out, thereby causing the device to be invalid. SUMMARY

[0004] The purpose of the present application is to solve the shortcomings of the prior art and provide a thermal runaway processing device for new energy battery pack processing.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] A thermal runaway processing device for new energy battery pack processing, comprising a support frame, a top frame is fixedly installed at the top end of the support frame, a water tank is fixedly installed inside the support frame, the water tank is filled with brine, two downwardly split processing table surfaces are hingedly connected to the top of the top frame, a floating plate is installed inside the water tank, a roll-over prevention assembly is installed between the water tank and the floating plate, two groups of ratchet support mechanisms are symmetrically installed on the lower surface of the top frame at the joint of the two processing table surfaces, and two groups of buoyancy adjustment mechanisms are symmetrically installed on the bottom of the floating plate.

[0007] As a further scheme of the present application, the roll-over prevention assembly comprises a plurality of T-shaped guide rails fixedly installed on the inner walls of the opposite sides of the water tank, T-shaped clamping grooves are formed in the side edges of the floating plate and match the T-shaped guide rails, and the T-shaped guide rails and the T-shaped clamping grooves are slidably installed on the inner walls.

[0008] As a further scheme of the present application, the ratchet wheel supporting mechanism comprises two mounting plates symmetrically fixedly installed on the lower surface of the top frame, a supporting shaft rotatably installed between the two mounting plates, a supporting plate fixedly installed on the outer surface of the supporting shaft and supporting the bottom of the two machining table surfaces, and a ratchet wheel fixedly installed on the outer surface of the supporting shaft.

[0009] As a further scheme of the present application, the unlocking assembly comprises a rotating shaft rotatably installed on the bottom of the supporting frame, a torsion spring installed between the rotating shaft and the supporting frame, a pull line wheel fixedly installed on each end of the rotating shaft, a steel wire rope fixedly installed between the outer periphery of the pull line wheel and the pawl, a plurality of buckles installed on the outer surface of the supporting frame and used for limiting the steel wire rope, the steel wire rope sequentially passing through the plurality of buckles, and a pedal fixedly installed on the outer surface of the rotating shaft close to the middle position.

[0010] As a further scheme of the present application, the buoyancy adjusting mechanism comprises two side plates slidably installed on the lower surface of the floating plate, a plurality of baffle plates uniformly fixedly installed between the two side plates, the bottom of each baffle plate being in a tapered structure, the upper surface of each baffle plate being attached to the lower surface of the floating plate, a plurality of through grooves uniformly and correspondingly formed in the upper surface of the floating plate, a spring rod fixedly installed on the lower surface of the floating plate, the telescopic end of the spring rod being fixedly installed on the outer surface of the side plate away from the baffle plate, and a pushing assembly installed between the baffle plate close to the side wall of the water tank and the water tank.

[0011] As a further scheme of the present application, the pushing assembly comprises a pushing block fixedly installed on the outer surface of the baffle plate close to the side wall of the water tank, a trapezoidal extrusion block fixedly installed on the inner wall of the water tank close to the pushing block, and the trapezoidal extrusion block corresponding to the position of the pushing block.

[0012] As a further scheme of the present application, the inner part of each of the opposite sides of the water tank is movably installed with a lifting frame, and the bottom end outer surface of the lifting frame close to the floating plate is fixedly installed with a lifting block.

[0013] As a further scheme of the present application, the bottom of the supporting frame is fixedly installed with a plurality of universal wheels.

[0014] As a further scheme of the present application, a gap is left between the periphery of the floating plate and the inner wall of the water tank, the floating plate is made of a corrosion-resistant light material, and the machining table surface is made of an insulating material.

[0015] The present application has the following beneficial effects:

[0016] 1. When the battery pack experiences thermal runaway, the operator immediately presses down on the pedal, causing the pedal to rotate via the shaft, which in turn pulls the wire rope. This pulls the pawl upward, releasing it from its restraint on the ratchet wheel and freeing the support shaft. The tray mounted on the support shaft can then freely flip downward, no longer supporting the two processing tables. Under its own weight, the two downward-opening processing tables can flip downward, allowing the battery pack placed on the processing tables to fall into the water tank. The brine in the water tank cools the thermally runaway battery pack, preventing the fire from spreading. Compared to the existing method of using an electric lifting platform to submerge the thermally runaway battery pack in water, this method avoids the problem of the electric lifting platform's control system failing due to the high temperature generated by the battery pack's thermal runaway.

[0017] 2. When the battery pack falls into the water tank, it will land on the float plate floating on the salt water surface. Because there are gaps between the float plate and the inner wall of the water tank, when the float plate moves downward under the weight of the battery pack, the water will flow through the gaps and the through-channels on the float plate to the top of the float plate. This allows the float plate to buffer the impact of the falling battery pack and avoid secondary collision damage to the battery pack.

[0018] 3. By adjusting the buoyancy of the float plate, it can sink quickly when the battery pack first enters the water tank, which can quickly buffer the impact of the falling battery pack, avoid hard contact between the battery pack and the float plate surface, and prevent damage to both the battery pack and the float plate. It also allows the battery pack to sink quickly into the salt water. After the float plate sinks to the trapezoidal compression block, it can automatically increase the buoyancy of the float plate, which can slow down the sinking speed of the battery pack and prevent the battery pack from sinking too fast, causing impact with the bottom of the water tank and secondary damage to the battery pack. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a thermal runaway treatment device for new energy battery pack processing proposed in this invention.

[0020] Figure 2 This is a schematic diagram of the top frame structure of a thermal runaway treatment device for new energy battery pack processing proposed in this invention;

[0021] Figure 3 This is a schematic diagram of the bottom structure of a thermal runaway treatment device for processing new energy battery packs proposed in this invention.

[0022] Figure 4 This is a schematic diagram of the top structure of the water tank in a thermal runaway treatment device for new energy battery pack processing proposed in this invention.

[0023] Figure 5This is a schematic diagram of the internal structure of the water tank in a thermal runaway treatment device for new energy battery packs proposed in this invention.

[0024] Figure 6 This is a schematic diagram of the bottom structure of the floating plate of a thermal runaway treatment device for new energy battery pack processing proposed in this invention;

[0025] Figure 7 This is a schematic diagram of the baffle structure of a thermal runaway handling device for new energy battery pack processing proposed in this invention.

[0026] Figure 8 for Figure 2 Enlarged view of the structure at point A in the middle.

[0027] In the diagram: 1. Support frame; 2. Processing table; 3. Water tank; 4. Casters; 5. Float; 6. T-slot; 7. T-rail; 8. Support shaft; 9. Pallet; 10. Ratchet; 11. Pad; 12. Shaft; 13. Pull wheel; 14. Wire rope; 15. Pedal; 16. Through groove; 17. Spring rod; 18. Side plate; 19. Baffle; 20. Push block; 21. Trapezoidal extrusion block; 22. Lifting frame; 23. Lifting block; 24. Top frame. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] See attached document Figure 1 -Appendix Figure 8 A thermal runaway handling device for processing new energy battery packs includes a support frame 1, a top frame 24 fixedly installed at the top of the support frame 1, a water tank 3 fixedly installed inside the support frame 1, the water tank 3 being filled with brine, two downward-opening processing tables 2 hinged to the top of the top frame 24, a float 5 installed inside the water tank 3, an anti-tipping component installed between the water tank 3 and the float 5, two sets of ratchet support mechanisms symmetrically installed on the lower surface of the top frame 24 at the junction of the two processing tables 2, and two sets of buoyancy adjustment mechanisms symmetrically installed on the bottom of the float 5.

[0031] In this embodiment, the anti-tipping component includes multiple T-shaped guide rails 7 fixedly installed on the inner walls of opposite sides of the water tank 3. The side of the float 5 is provided with a T-shaped slot 6 that matches the T-shaped guide rail 7. The T-shaped guide rail 7 and the inner wall of the T-shaped slot 6 are slidably installed.

[0032] When the battery pack lands on the float 5, the float 5 will sink vertically along the T-shaped guide rail 7 to prevent the battery pack from becoming unstable and causing the float 5 to tip over, causing the battery pack to fall directly to the bottom of the water tank 3 and cause secondary damage to the battery pack.

[0033] In this embodiment, the ratchet support mechanism includes two mounting plates symmetrically fixedly installed on the lower surface of the top frame 24. A support shaft 8 is rotatably installed between the two mounting plates. A support plate 9 for supporting the bottom of the two processing table surfaces 2 is fixedly installed on the outer surface of the support shaft 8. A ratchet 10 is fixedly installed on the outer surface of the support shaft 8. A pawl 11 matching the ratchet 10 is rotatably installed on the outer surface of one of the mounting plates. An unlocking component is installed between the support frame 1 and the pawl 11.

[0034] In this embodiment, the unlocking component includes a rotating shaft 12 rotatably mounted on the bottom of the support frame 1. A torsion spring is installed between the rotating shaft 12 and the support frame 1. Pull wheels 13 are fixedly installed at both ends of the rotating shaft 12. A steel wire rope 14 is fixedly installed between the outer periphery of the pull wheel 13 and the pawl 11. Multiple buckles for limiting the steel wire rope 14 are installed on the outer surface of the support frame 1. The steel wire rope 14 passes through the multiple buckles in sequence. A pedal 15 is fixedly installed on the outer surface of the rotating shaft 12 near its middle position.

[0035] In this embodiment, the buoyancy adjustment mechanism includes two side plates 18, which are slidably installed on the lower surface of the float plate 5. Multiple baffles 19 are uniformly fixed between the two side plates 18. The bottom of each baffle 19 is conical, and the upper surface of the baffle 19 is in contact with the lower surface of the float plate 5. Multiple through slots 16 matching the baffles 19 are uniformly opened on the upper surface of the float plate 5. A spring rod 17 is fixedly installed on the lower surface of the float plate 5. The telescopic end of the spring rod 17 is fixedly installed on the outer surface of the side plate 18 away from the baffles 19. A pushing component is installed between a baffle 19 near the side wall of the water tank 3 and the water tank 3.

[0036] In this embodiment, the pushing component includes a push block 20 fixedly installed on the outer surface of a baffle 19 near the side wall of the water tank 3, and a trapezoidal extrusion block 21 fixedly installed on the inner wall of the water tank 3 near the push block 20, with the trapezoidal extrusion block 21 corresponding to the position of the push block 20.

[0037] In this embodiment, lifting frames 22 are movably installed inside the water tank 3 on both sides, and lifting blocks 23 are fixedly installed on the outer surface of the bottom end of the lifting frame 22 near the float 5.

[0038] When it is necessary to remove the battery pack that has been submerged in the water tank 3, use a lifting tool to hook the two lifting frames 22 so that the lifting blocks 23 installed at the bottom of the lifting frames 22 can be locked at the bottom of the float plate 5. Then, the float plate 5 and the battery pack can be lifted out of the water tank 3 by the lifting tool, making it easy to remove the battery pack.

[0039] In this embodiment, multiple casters 4 are fixedly installed at the bottom of the support frame 1.

[0040] When in use, the multiple casters 4 can raise the height of the support frame 1, leaving enough space for the pedal 15 to be stepped on, and at the same time increasing the mobility of the device. In the event of thermal runaway of the battery pack, the device can be pushed to an open space to avoid affecting the work of other workstations in the workshop.

[0041] In this embodiment, there is a gap between the float plate 5 and the inner wall of the water tank 3, and the float plate 5 is made of a corrosion-resistant lightweight material, while the processing table 2 is made of an insulating material.

[0042] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: When in use, the battery pack to be processed is placed on the processing table 2. When the battery pack experiences thermal runaway, the operator immediately steps down on the pedal 15, causing the pedal 15 to drive the pull wheel 13 to rotate through the rotating shaft 12. This causes the pull wheel 13 to pull the wire rope 14, which in turn pulls the pawl 11 upward, so that the pawl 11 is no longer limited by the ratchet 10, thus releasing the restriction on the support shaft 8. This allows the support plate 9 mounted on the support shaft 8 to freely flip downward, no longer supporting the two processing tables 2. The two downward-opening processing tables 2 can then flip downward under their own weight, allowing the battery pack placed on the processing table 2 to fall into the water tank 3. The brine in the water tank 3 cools the thermally runaway battery pack, preventing the fire from spreading. Compared with the prior art, which uses an electric lifting platform to submerge the thermally runaway battery pack in water, this method avoids the problem of the electric lifting platform failing due to the high temperature caused by the thermal runaway of the battery pack.

[0043] When the battery pack falls into the water tank 3, it will fall onto the float 5 floating on the salt water surface. Since there are gaps between the float 5 and the inner wall of the water tank 3, when the float 5 moves downward under the weight of the battery pack, the water will flow through the gaps and the through groove 16 opened on the float 5 to the top of the float 5, so that the float 5 can buffer the impact force of the falling battery pack and avoid secondary collision damage to the battery pack.

[0044] When the float plate 5 descends to the trapezoidal squeezing block 21, the push block 20 will abut against the inclined surface of the trapezoidal squeezing block 21. Under the action of the inclined surface, the push block 20 is pushed by the trapezoidal squeezing block 21, so that the push block 20 can push multiple baffles 19 to move as a whole, so that the baffles 19 can block the through groove 16 opened on the float plate 5, increase the area between the bottom of the float plate 5 and the brine, thereby increasing the drainage volume of the float plate 5, increasing the buoyancy of the float plate 5, and slowing down the sinking speed of the float plate 5.

[0045] By adjusting the buoyancy of the float plate 5, it can sink quickly when the battery pack first falls into the water tank 3, which can quickly buffer the impact of the falling battery pack, avoid hard contact between the battery pack and the surface of the float plate 5, and prevent damage to the battery pack and the float plate 5. It also allows the battery pack to sink quickly into the salt water. After the float plate 5 sinks to the trapezoidal compression block 21, it can automatically increase the buoyancy of the float plate 5, which slows down the sinking speed of the battery pack and prevents the battery pack from sinking too fast, causing impact with the bottom of the water tank 3 and secondary damage to the battery pack.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A thermal runaway handling device for processing new energy battery packs, comprising a support frame (1), a top frame (24) fixedly installed at the top of the support frame (1), and a water tank (3) fixedly installed inside the support frame (1), characterized in that, The water tank (3) is filled with salt water. The top of the top frame (24) is hinged to two downward-opening processing tables (2). A float plate (5) is installed inside the water tank (3). An anti-tipping component is installed between the water tank (3) and the float plate (5). Two sets of ratchet support mechanisms are symmetrically installed on the lower surface of the top frame (24) at the junction of the two processing tables (2). Two sets of buoyancy adjustment mechanisms are symmetrically installed on the bottom of the float plate (5). The buoyancy adjustment mechanism includes two side plates (18), which are slidably mounted on the lower surface of the float (5). Multiple baffles (19) are uniformly fixed between the two side plates (18). The bottoms of the multiple baffles (19) are conical structures, and the upper surface of the baffles (19) is in contact with the lower surface of the float (5). Multiple through slots (16) matching the baffles (19) are uniformly opened through the upper surface of the float (5). A spring rod (17) is fixedly mounted on the lower surface of the float (5). The telescopic end of the spring rod (17) is fixedly installed on the outer surface of the side plate (18) away from the baffle (19). A pushing assembly is installed between the baffle (19) near the side wall of the water tank (3) and the water tank (3). The pushing assembly includes a push block (20) fixedly installed on the outer surface of the baffle (19) near the side wall of the water tank (3). A trapezoidal extrusion block (21) is fixedly installed on the inner wall of the water tank (3) near the push block (20). The trapezoidal extrusion block (21) is positioned corresponding to the push block (20).

2. The thermal runaway handling device for new energy battery pack processing according to claim 1, characterized in that, The anti-tipping assembly includes multiple T-shaped guide rails (7) fixedly installed on the inner walls of opposite sides of the water tank (3). The side of the float (5) is provided with a T-shaped slot (6) that matches the T-shaped guide rail (7). The T-shaped guide rail (7) and the inner wall of the T-shaped slot (6) are slidably installed.

3. The thermal runaway handling device for new energy battery pack processing according to claim 1, characterized in that, The ratchet support mechanism includes two mounting plates symmetrically fixedly installed on the lower surface of the top frame (24). A support shaft (8) is rotatably installed between the two mounting plates. A support plate (9) for supporting the bottom of the two processing tables (2) is fixedly installed on the outer surface of the support shaft (8). A ratchet (10) is fixedly installed on the outer surface of the support shaft (8). A pawl (11) matching the ratchet (10) is rotatably installed on the outer surface of one of the mounting plates. An unlocking component is installed between the support frame (1) and the pawl (11).

4. The thermal runaway handling device for new energy battery pack processing according to claim 3, characterized in that, The unlocking assembly includes a rotating shaft (12) rotatably mounted on the bottom of the support frame (1). A torsion spring is installed between the rotating shaft (12) and the support frame (1). Both ends of the rotating shaft (12) are fixedly mounted with pull wheels (13). A steel wire rope (14) is fixedly mounted between the outer periphery of the pull wheel (13) and the pawl (11). The outer surface of the support frame (1) is equipped with multiple buckles for limiting the steel wire rope (14). The steel wire rope (14) passes through the multiple buckles in sequence. A pedal (15) is fixedly mounted on the outer surface of the rotating shaft (12) near its middle position.

5. The thermal runaway handling device for new energy battery pack processing according to claim 1, characterized in that, Lifting frames (22) are movably installed inside the water tank (3) on both sides. Lifting blocks (23) are fixedly installed on the outer surface of the bottom end of the lifting frame (22) near the float (5).

6. The thermal runaway handling device for new energy battery pack processing according to claim 1, characterized in that, The bottom of the support frame (1) is fixedly equipped with multiple casters (4).

7. The thermal runaway handling device for new energy battery pack processing according to claim 1, characterized in that, The float (5) has a gap between its perimeter and the inner wall of the water tank (3), and the float (5) is made of a corrosion-resistant lightweight material, while the processing table (2) is made of an insulating material.

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