Liftable experimental battery box charging station fire experiment platform and experimental system

Abstract

This invention relates to the field of battery box technology, and proposes a fire-fighting experimental platform and system for charging stations with a liftable and replaceable experimental battery box. The system includes a top frame and a lifting base that drives the top frame to move up and down. The top frame is equipped with a clamping platform for receiving the replaced battery box. The clamping platform is equipped with a clamping device to control the clamping distance and an electric roller assembly to deliver the battery box out of the clamping platform. Below the top frame is a battery box replacement platform for placing the battery box to be installed. The replacement platform is elastically supported on the lifting base by elastic guides. Two sets of lifting components are provided on both sides of the replacement platform to lift it up when the top frame moves down. When the battery box to be installed on the replacement platform is lifted to the height of the clamping platform, this invention enables the alternating installation of old and new battery boxes, thereby improving replacement efficiency and providing a platform for fire-fighting battery box replacement experiments in charging stations. It also solves the problem of the cumbersome experimental demonstration process in existing technologies.

Description

Technical Field

[0001] This invention relates to the field of battery box technology, and more specifically to a fire-fighting experimental platform for a charging station with a liftable and replaceable experimental battery box. Background Technology

[0002] With the increasing number of new energy vehicles, their safety is receiving more and more attention. The biggest safety issue for new energy vehicles is the thermal runaway of the battery pack. Generally, thermal runaway in the battery pack mainly stems from collisions and compressions, punctures, overcharging, over-discharging, external short circuits, localized overheating, and aging. These factors cause internal short circuits within the battery, leading to internal exothermic reactions, localized temperature increases, and ultimately the decomposition and chemical reactions of the separator and electrode materials, resulting in thermal runaway. When a battery pack malfunctions, it needs to be replaced promptly to prevent fires, explosions, and other hazards.

[0003] However, the existing charging station battery box replacement technology is not yet mature. Therefore, manufacturers still need to conduct fire safety tests and demonstrations of battery box charging stations. In the existing fire safety tests and demonstrations of battery box charging stations, the vehicle needs to be lifted by a jack and then replaced with a mobile lifting platform truck. In this process, the mobile lifting platform truck needs to first remove the disassembled faulty battery box and then transport the new battery box to the bottom of the vehicle to complete the replacement of the old and new battery boxes. The test demonstration process is relatively cumbersome and affects the replacement efficiency of the battery box. Summary of the Invention

[0004] This invention proposes a fire-fighting experimental platform for a charging station with a liftable and replaceable experimental battery box, which solves the problem of the cumbersome experimental demonstration process in the prior art.

[0005] The technical solution of the present invention is as follows: A fire-fighting experimental platform for a charging station with a liftable and replaceable experimental battery box, comprising a top frame (2) and a lifting base (1) for driving the top frame (2) to move up and down. The top frame (2) is provided with a clamping platform (3) for receiving the replaced battery box. The clamping platform (3) is provided with a clamping device (7) for controlling the clamping distance of the clamping platform (3) and an electric roller group (8) for sending the battery box out of the clamping platform (3). Below the top frame (2) is a space for placing the battery box to be installed. The battery box changing platform (4) is elastically supported on the lifting base (1) by the elastic guide (5). Two sets of lifting components (6) are provided on both sides of the battery box changing platform (4) to lift the battery box changing platform (4) when the top frame (2) moves down. When the battery box to be installed on the battery box changing platform (4) is lifted to the height of the clamping platform (3), the clamping platform (3) clamps the battery box to be installed under the drive of the clamping device (7). The lifting base (1) lifts the clamping platform (3) and installs the battery box to be installed into the battery compartment.

[0006] Furthermore, the lifting base (1) includes a base frame (11), and each of the four corners of the base frame (11) is fixed with a column (12). A top pressure rod (13) is slidably sleeved on the inner side of the top of the column (12), and a cylinder (14) is fixed on the inner side of the bottom of the column (12). The top pressure rod (13) is fixed to the output end of the cylinder (14), and the top pressure rod (13) is fixed on the top frame (2).

[0007] Furthermore, the clamping platform (3) includes two clamps (31), which are arranged opposite to each other and are slidably mounted on the top frame (2). Each clamp (31) has a spaced through groove (32), and the electric roller group (8) is rotatably mounted in the through groove (32). The clamp (31) has a bayonet (35).

[0008] Furthermore, the top frame (2) includes a frame plate (21), which is fixed to the top of the top pressure rod (13). The top two sides of the frame plate (21) are fixed with slide rails (22) that are perpendicular to the length direction of the clamp (31). The bottom two sides of the clamp (31) are fixed with sliders (33), which are slidably mounted on the slide rails (22).

[0009] Furthermore, the clamping device (7) includes a second spring (71), both ends of which are fixed with electromagnets (72), and the sides of the two clamps (31) are fixed with mounting plates (34), and the two electromagnets (72) are respectively fixed on the mounting plates (34) of the two clamps (31).

[0010] Furthermore, both sides of the frame plate (21) are fixed with stop plates (23) to limit the movement of the mounting plates (34) when they move away from each other.

[0011] Furthermore, the elastic guide (5) includes a fixing plate (51), which is fixed on the base frame (11). The box changing platform (4) includes a platform (41), and the top of the platform (41) is provided with an alignment groove (42) for inserting the battery to be installed. Sliding sleeves (43) are fixed on both sides of the platform (41). A vertical guide rod (52) is fixed on the fixing plate (51). The sliding sleeve (43) is slidably sleeved on the guide rod (52). A first spring (53) is sleeved on the guide rod (52). The two ends of the first spring (53) are fixedly connected to the sliding sleeve (43) and the fixing plate (51) respectively.

[0012] Furthermore, the lifting assembly (6) includes a first movable arm (61) and a second movable arm (62), which are distributed in a cross pattern. There are two of each of the first movable arm (61) and the second movable arm (62). The two first movable arms (61) and the two second movable arms (62) are respectively fixedly connected by a shaft (65). A support (15) is fixed on the base frame (11). The shaft (65) is rotatably connected to the support (15). One end of the first movable arm (61) and one end of the second movable arm (62) are fixed with a limiting clamp (63) that swings with the lifting rod (13). The other end of the first movable arm (61) and the other end of the second movable arm (62) are both equipped with a pressure roller (64). Wheel rails (44) are fixed on both sides of the bottom of the platform (41). The pressure roller (64) is rolled in the wheel rail (44).

[0013] Furthermore, the top pressure rod (13) has a slot (131) and a limiting shaft (132) is fixed inside the slot (131). The column (12) has a movable slot (121) corresponding to the position of the slot (131). The limiting clamp (63) passes through the movable slot (121) and the slot (131) and is locked on the limiting shaft (132).

[0014] The present invention also provides a fire protection test system for a charging station with a liftable and replaceable experimental battery box, comprising a recycling device for recycling used battery boxes, a lifting machine for lifting new energy vehicles, and an experimental platform as described in any one of claims 1 to 9; the lifting machine lifts the new energy vehicle to a certain height, and then moves the experimental platform to below the battery compartment of the new energy vehicle; the experimental platform drags the faulty battery box of the new energy vehicle and lowers it, and then sends it to the recycling device.

[0015] The beneficial effects of this invention are as follows:

[0016] In this invention, by setting up a clamping platform and a battery box replacement platform, the clamping platform first sends out the disassembled battery box, and then the battery box to be replaced is placed on the clamping platform. This enables the alternating installation of old and new battery boxes, thereby improving the replacement efficiency and providing a platform for fire-fighting battery box replacement experiments in charging stations. This solves the problem that the experimental demonstration process in the prior art is relatively cumbersome. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of a fire-fighting experimental platform for a charging station with a liftable and replaceable experimental battery box, as proposed in this invention.

[0019] Figure 2 This is a front view structural diagram of a fire-fighting experimental platform for a charging station with a liftable and replaceable experimental battery box proposed in this invention;

[0020] Figure 3 This is a schematic diagram of the lifting base structure proposed in this invention;

[0021] Figure 4 This is a schematic diagram of the top frame structure proposed in this invention;

[0022] Figure 5 This is a schematic diagram of the clamping structure proposed in this invention;

[0023] Figure 6 This is a schematic diagram of the clamping platform proposed in this invention from another perspective;

[0024] Figure 7 This is a schematic diagram of the box-changing platform structure proposed in this invention;

[0025] Figure 8 This is a schematic diagram of the box-changing platform proposed in this invention from another perspective;

[0026] Figure 9 This is a schematic diagram of the column half-section structure proposed in this invention;

[0027] Figure 10 This is a schematic diagram of the lifting component structure proposed in this invention;

[0028] In the diagram: 1. Lifting base; 11. Base frame; 12. Column; 121. Movable groove; 13. Top pressure rod; 131. Groove; 132. Limiting shaft; 14. Cylinder; 15. Support; 2. Top frame; 21. Frame plate; 22. Slide rail; 23. Stop plate; 3. Clamping platform; 31. Clamp; 32. Through groove; 33. Slider; 34. Mounting plate; 35. Bayonet; 4. Box changing platform; 41. Platform; 42. Alignment groove; 43. Sliding sleeve; 44. Wheel rail; 5. Elastic guide; 51. Fixing plate; 52. Guide rod; 53. First spring; 6. Lifting assembly; 61. First movable arm; 62. Second movable arm; 63. Limiting clamp; 64. Pressure roller; 65. Shaft; 7. Clamping device; 71. Second spring; 72. Electromagnet; 8. Electric roller assembly. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1This invention provides a technical solution: a fire-fighting test platform for a charging station with a liftable and replaceable experimental battery box, including a top frame 2 and a lifting base 1 for driving the top frame 2 to move up and down. The top frame 2 is provided with a clamping platform 3 for receiving the replaced battery box. The clamping platform 3 is provided with a clamping device 7 for controlling the clamping distance of the clamping platform 3 and an electric roller group 8 for sending the battery box out of the clamping platform 3. A battery box changing platform 4 for placing the battery box to be installed is provided below the top frame 2. The battery box changing platform 4 is elastically supported on the lifting base 1 by an elastic guide 5. Two sets of lifting components 6 are provided on both sides of the battery box changing platform 4 to lift the battery box changing platform 4 when the top frame 2 moves down. When the battery box to be installed on the battery box changing platform 4 is lifted to the height of the clamping platform 3, the clamping platform 3 clamps the battery box to be installed under the drive of the clamping device 7. The lifting base 1 lifts the clamping platform 3 to install the battery box to be installed into the battery compartment.

[0031] See Figure 2 , Figure 3 The lifting base 1 includes a base frame 11, with columns 12 fixed at each of the four corners of the base frame 11. A top pressure rod 13 is slidably sleeved on the inner side of the top of the column 12, and a cylinder 14 is fixed on the inner side of the bottom of the column 12. The top pressure rod 13 is fixed to the output end of the cylinder 14 and is fixed on the top frame 2.

[0032] See Figure 2 , Figure 5 , Figure 6 The clamping platform 3 includes two clamps 31, which are symmetrically arranged and slidably mounted on the top frame 2. Each clamp 31 has an equally spaced through groove 32, and the electric roller group 8 is rotatably mounted in the through groove 32. The clamp 31 has a bayonet 35, the length of which is less than the length of the battery box, so that the battery box can be clamped when the two clamps 31 contact the outer side of the battery box.

[0033] See Figure 2 , Figure 4 , Figure 5 The top frame 2 includes a frame plate 21, which is fixed to the top of the top pressure rod 13. The top two sides of the frame plate 21 are fixed with slide rails 22 that are perpendicular to the length direction of the clamp 31. The bottom two sides of the clamp 31 are fixed with sliders 33, which are slidably mounted on the slide rails 22.

[0034] See Figure 4 , Figure 5Figure 6 shows that the clamping device 7 includes a second spring 71, with electromagnets 72 fixed at both ends of the second spring 71. Mounting plates 34 are fixed to the sides of the two clamps 31, and the two electromagnets 72 are respectively fixed to the mounting plates 34 of the two clamps 31. Stop plates 23 are fixed to both sides of the frame plate 21 to limit the mounting plates 34 from moving away from each other. The clamping platform 3 has two working states: when the two electromagnets 72 are de-energized, the two clamps 31 are kept away from each other by the elastic force of the second spring 71, and a fixed distance is maintained by the contact between the mounting plate 34 and the stop plate 23. This distance allows the battery box to pass through vertically. When the two electromagnets 72 are energized, the two clamps 31 are close to each other and can clamp the two sides of the battery box. When the battery box changing platform 4 falls back, the clamps 31 support the battery box.

[0035] See Figure 2 , Figure 3 , Figure 7 The elastic guide 5 includes a fixing plate 51, which is fixed to the base frame 11. The battery box changing platform 4 includes a platform 41. The top of the platform 41 is provided with an alignment groove 42 for inserting the battery to be installed. The bottom of the battery box in the experiment demonstration is provided with a protrusion that matches the size of the alignment groove 42 for limiting the battery box. The width of the platform 41 is smaller than the width of the battery box. That is, after the battery box is placed on the platform 41, the two sides of the battery box protrude outside the platform 41 for the two clamps 31 to support the battery box from the bottom. Sliding sleeves 43 are fixed on both sides of the platform 41. A vertical guide rod 52 is fixed on the fixing plate 51. The sliding sleeve 43 is slidably sleeved on the guide rod 52. A first spring 53 is sleeved on the guide rod 52. The two ends of the first spring 53 are fixedly connected to the sliding sleeve 43 and the fixing plate 51, respectively.

[0036] See Figure 2 , Figure 8 , Figure 10 The lifting assembly 6 includes a first movable arm 61 and a second movable arm 62, which are distributed in a cross pattern. There are two of each type of movable arm. The two first movable arms 61 and the two second movable arms 62 are fixedly connected to each other by a shaft 65. A support 15 is fixed on the base frame 11, and the shaft 65 is rotatably connected to the support 15. One end of the first movable arm 61 and one end of the second movable arm 62 are fixed with a limiting clamp 63 that swings with the lifting rod 13. The other end of the first movable arm 61 and the other end of the second movable arm 62 are both equipped with a pressure roller 64. Wheel rails 44 are fixed on both sides of the bottom of the platform 41, and the pressure rollers 64 are rolled in the wheel rails 44.

[0037] See Figure 9 , Figure 10The top pressure rod 13 has a slot 131, and a limiting shaft 132 is fixed in the slot 131. The column 12 has a movable slot 121 corresponding to the position of the slot 131. The limiting clamp 63 passes through the movable slot 121 and the slot 131. The limiting clamp 63 is locked on the limiting shaft 132. The upward movement of the top pressure rod 13 can be pushed by the limiting shaft 132 to push the limiting clamp 63, so that the first movable arm 61 and the second movable arm 62 rotate crosswise, so that the two pressure rollers 64 move away from each other and their height is reduced. The box changing platform 4 moves downward under its own weight and the elastic force of the first spring 53. Conversely, when the top pressure rod 13 moves downward, the box changing platform 4 moves upward against the elastic force of the first spring 53.

[0038] A fire-fighting test system for a charging station with a liftable and replaceable experimental battery box includes a recycling device for recycling used battery boxes, a lifting machine for lifting new energy vehicles, a cover bolt removal tool or robot, a faulty battery box, a battery box to be installed, and the aforementioned test platform.

[0039] The working principle and usage process of this invention are as follows: During the fire protection experiment demonstration, the new energy vehicle is lifted to a certain height by a lifting machine, and this device is placed below the battery compartment of the new energy vehicle. In the initial state, the cylinders 14 in each column 12 push the frame plate 21 to gradually rise to the bottom of the battery compartment through the top pressure rod 13, and support the faulty battery box falling in the battery compartment. During this process, the upward movement of the top pressure rod 13 can push the limit clamp 63 by the limit shaft 132, so that the first movable arm 61 and the second movable arm 62 rotate crosswise, thereby making the two pressure rollers 64 move away from each other and reduce the height. The battery box changing platform 4 moves downward under its own weight and the elastic force of the first spring 53, thereby increasing the distance with the clamp 3, making it easier to place the battery box to be installed on the battery box changing platform 4.

[0040] Electromagnet 72 drives the two clamps 31 to move closer together, clamping the replaced battery box. Then, cylinder 14 pulls the frame plate 21 back down gradually via top pressure rod 13. Figure 2 As shown, the battery box is completely detached from the battery compartment of the new energy vehicle. Cylinder 14 stops working, keeping the old and new battery boxes at different heights. The electric roller group 8 on the clamping platform 3 starts working to push the replaced battery box to one side, where it is collected by the recycling device on the side.

[0041] After the replaced battery box leaves the clamping platform 3, the electromagnet 72 circuit is disconnected. Under the elastic force of the second spring 71, the two clamps 31 move away from each other and maintain a certain distance under the contact of the mounting plate 34 and the stop plate 23. Then, the cylinder 14 continues to pull the frame plate 21 down through the top pressure rod 13, while the first movable arm 61 and the second movable arm 62 continue to rotate crosswise. Through the pressure roller 64, the pressure plate 41 is pushed up, causing the plate 41 to overcome the elastic force of the first spring 53 and move upward. The plate 41 holding the battery box to be installed passes through the frame plate 21 and is level with the height position of the slot 35 on the clamping platform 3. The cylinder 14 stops working.

[0042] When the electromagnet 72 works again, it drives the two clamps 31 to move closer together and clamp them on both sides of the battery box to be replaced. Driven by the cylinder 14, the battery box replacement platform 4 falls back, and the clamps 31 support the battery box to be replaced. Then, the cylinder 14 pushes the frame plate 21 to rise again through the top pressure rod 13, and loads the new battery box into the battery compartment of the new energy vehicle to complete the fire-fighting experiment demonstration of replacing the battery box of the new energy vehicle.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fire experiment platform of a replaceable experimental battery box charging station, characterized in that, The device includes a top frame (2) and a lifting base (1) for moving the top frame (2) up and down. The top frame (2) is provided with a clamping platform (3) for receiving the replaced battery box. The clamping platform (3) is provided with a clamping device (7) for controlling the clamping distance of the clamping platform (3) and an electric roller group (8) for sending the battery box out of the clamping platform (3). The bottom of the top frame (2) is provided with a battery box changing platform (4) for placing the battery box to be installed. The battery box changing platform (4) is elastically supported on the lifting base (1) by an elastic guide (5). The two sides of the battery box changing platform (4) are provided with two sets of lifting components (6) that lift the battery box changing platform (4) when the top frame (2) moves down. When the battery box to be installed on the battery box changing platform (4) is lifted to the height of the clamping platform (3), the clamping platform (3) clamps the battery box to be installed under the drive of the clamping device (7). The lifting base (1) lifts the clamping platform (3) and puts the battery box to be installed into the battery compartment. The clamping platform (3) includes two clamps (31), which are arranged opposite to each other and slidably mounted on the top frame (2). Each clamp (31) has a spaced through groove (32), and the electric roller group (8) is rotatably mounted in the through groove (32). The clamp (31) has a bayonet (35); the length of the bayonet (35) is less than the length of the battery box. The clamping device (7) includes a second spring (71), both ends of which are fixed with electromagnets (72), and the sides of the two clamps (31) are fixed with mounting plates (34), and the two electromagnets (72) are respectively fixed on the mounting plates (34) of the two clamps (31). The top frame (2) includes a frame plate (21), which is fixed to the top of the top of the top pressure rod (13). The top two sides of the frame plate (21) are fixed with slide rails (22) that are perpendicular to the length direction of the clamp (31). The bottom two sides of the clamp (31) are fixed with sliders (33), which are slidably mounted on the slide rails (22). The two sides of the frame plate (21) are fixed with stop plates (23) that limit the mounting plates (34) when they move away from each other. When the two electromagnets (72) are de-energized, the two clamps (31) are kept apart by the elastic force of the second spring (71) and maintain a fixed distance under the contact between the mounting plate (34) and the stop plate (23), which allows the battery box to pass through vertically.

2. The fire-fighting experimental platform for a lifting and replaceable experimental battery box charging station according to claim 1, characterized in that, The lifting base (1) includes a base frame (11), and each of the four corners of the base frame (11) is fixed with a column (12). A top pressure rod (13) is slidably sleeved on the inner side of the top of the column (12), and a cylinder (14) is fixed on the inner side of the bottom of the column (12). The top pressure rod (13) is fixed to the output end of the cylinder (14), and the top pressure rod (13) is fixed on the top frame (2).

3. The fire-fighting experimental platform for a charging station with a liftable and replaceable experimental battery box according to claim 2, characterized in that, The elastic guide (5) includes a fixing plate (51), which is fixed on the base frame (11). The box changing platform (4) includes a platform (41), and the top of the platform (41) is provided with an alignment groove (42) for inserting the battery to be installed. Sliding sleeves (43) are fixed on both sides of the platform (41). A vertical guide rod (52) is fixed on the fixing plate (51). The sliding sleeve (43) is slidably sleeved on the guide rod (52). A first spring (53) is sleeved on the guide rod (52). The two ends of the first spring (53) are fixedly connected to the sliding sleeve (43) and the fixing plate (51) respectively.

4. The fire-fighting experimental platform for a charging station with a liftable and replaceable experimental battery box according to claim 3, characterized in that, The lifting assembly (6) includes a first movable arm (61) and a second movable arm (62). The first movable arm (61) and the second movable arm (62) are distributed in a cross pattern. There are two of each of the first movable arm (61) and the second movable arm (62). The two first movable arms (61) and the two second movable arms (62) are respectively fixedly connected by a shaft (65). A support (15) is fixed on the base frame (11). The shaft (65) is rotatably connected to the support (15). One end of the first movable arm (61) and one end of the second movable arm (62) are fixed with a limiting clamp (63) that swings with the lifting rod (13). The other end of the first movable arm (61) and the other end of the second movable arm (62) are both equipped with a pressure roller (64). Wheel rails (44) are fixed on both sides of the bottom of the platform (41). The pressure roller (64) is rolled in the wheel rail (44).

5. The fire-fighting experimental platform for a charging station with a liftable and replaceable experimental battery box according to claim 4, characterized in that, The top pressure rod (13) has a slot (131) and a limiting shaft (132) is fixed inside the slot (131). The column (12) has a movable slot (121) corresponding to the position of the slot (131). The limiting clamp (63) passes through the movable slot (121) and the slot (131) and is locked on the limiting shaft (132).

6. A fire-fighting experimental system for a charging station with a liftable and replaceable experimental battery box, characterized in that, The device includes a recycling unit for recycling used battery boxes, a lifting machine for raising and lowering new energy vehicles, and an experimental platform as described in any one of claims 1 to 5. The lifting machine raises the new energy vehicle to a certain height, and then moves the experimental platform to below the battery compartment of the new energy vehicle. The experimental platform drags the faulty battery box of the new energy vehicle and lowers it before sending it to the recycling unit.

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