An emergency battery replacement system and a battery replacement method thereof

Abstract

The present application relates to a kind of emergency battery replacement system and its battery replacement method, including battery replacement trolley, battery replacement trolley includes car body, car body is provided with floating lifting device, and car body is provided with electric control box;Car body is provided with the floating connection device connected with floating lifting device;Car body is provided with universal wheel;It further includes fire-fighting battery rack;Battery replacement method includes the following steps: S1, moves battery replacement trolley to the bottom of vehicle;S2, floating lifting device removes battery pack;S3, moves battery replacement trolley to fire-fighting battery rack;S4, floating lifting device places battery pack on fire-fighting battery rack;S5, floating lifting device removes new battery pack from fire-fighting battery rack;S6, moves battery replacement trolley with new battery pack to the bottom of vehicle;S7, floating lifting device places new battery pack on vehicle;S8, exit battery replacement trolley and complete battery replacement.The present application can manually complete battery replacement operation in the case where battery replacement device in battery replacement station is damaged, and improve adaptability.

Description

Technical Field

[0001] This invention relates to the technical field of battery pack swapping, and in particular to an emergency battery swapping system and its swapping method. Background Technology

[0002] In recent years, with the popularization of new energy vehicles, the pure electric commercial vehicle market has also developed rapidly. In the commercial sector, battery-swapping light trucks have obvious advantages in reducing purchase costs and eliminating range anxiety, and have become an important development direction in the new energy commercial vehicle market.

[0003] Currently, battery swapping for electric vehicles typically requires the use of automated battery swapping carts within battery swapping stations. These carts are an integral part of the swapping station, performing the swapping operation. This method of battery swapping is highly automated and the technology is relatively mature. However, due to this high degree of automation, both the swapping station and the battery swapping cart are indispensable as a whole. If an outdoor swapping station encounters an accident that causes the internal battery swapping cart to lose power or become damaged, the entire swapping station will shut down, and vehicle battery swapping will be impossible. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an emergency battery swapping system and its swapping method.

[0005] The above-mentioned objective of the present invention is achieved through the following technical solution:

[0006] On the one hand, this application discloses an emergency battery swapping system.

[0007] The device includes a battery swapping vehicle, which includes a vehicle body, a floating lifting device for moving the battery pack vertically, and an electrical control box for controlling the floating lifting device.

[0008] The vehicle body is equipped with a floating connection device that is connected to the floating lifting device.

[0009] Several omnidirectional wheels are provided on the side of the vehicle body that is away from the floating lifting device;

[0010] It also includes fire-fighting battery racks.

[0011] The present invention is further configured such that: the vehicle body includes a chassis and a mounting frame disposed at one end of the chassis; the floating lifting device is disposed on the chassis; the electrical control box is disposed on the mounting frame; and a push handle is disposed on one side of the mounting frame, the push handle being disposed in a vertical direction.

[0012] The present invention is further configured such that a side armrest is detachably provided on one side of the base frame, and the side armrest and the push armrest are located on different sides of the base frame.

[0013] The present invention is further configured such that: the floating lifting device includes a floating plate disposed on the base frame, a disassembly lifting mechanism disposed on the floating plate, and a replacement lifting mechanism disposed on the floating plate, and the floating plate is provided with a connecting plate for the floating connection device.

[0014] The present invention is further configured such that: the disassembly lifting mechanism includes a lifting plate and a lifting assembly for lifting the lifting plate; the lifting plate is provided with a positioning pin and an unlocking pin; the unlocking pin is slidably disposed on the lifting plate in the vertical direction.

[0015] The present invention is further configured such that: the replacement lifting mechanism includes a replacement body and a translation plate slidably disposed on the replacement body; the replacement body is provided with a translation slide rail; a translation slider is slidably disposed on the translation slide rail; and the translation plate is fixedly connected to the translation slider.

[0016] The disassembly lifting mechanism is provided at intervals on the floating plate, and the replacement lifting mechanism is located between two adjacent disassembly lifting mechanisms.

[0017] The present invention is further configured such that: the floating connection device includes a fixed plate, a driving mechanism for driving the fixed plate to move, and a floating connection end disposed on the fixed plate, the end of the floating connection end away from the fixed plate being connected to the connection plate, the base frame being provided with a floating slide rail, and the fixed plate being slidably disposed on the floating slide rail.

[0018] The present invention is further configured such that: the driving mechanism includes a transmission rod, a drive motor for driving the transmission rod to rotate, a drive gear disposed on the transmission rod, and a driven rack fixedly connected to a fixed plate, wherein the drive gear meshes with the driven rack.

[0019] The present invention is further configured such that: the fire-fighting battery rack includes a frame, a support base disposed within the frame, and a buffer platform slidably disposed within the support base, the buffer platform sliding toward the vehicle body, and a support pad disposed on the buffer platform;

[0020] A fire hood is slidably mounted on the frame, and a lifting mechanism for moving the fire hood is provided on the frame.

[0021] On the other hand, this application discloses a battery pack swapping method, applied to the aforementioned emergency battery swapping system, comprising the following steps:

[0022] S1. Manually move the battery swapping trolley to the bottom of the vehicle;

[0023] S2. The floating lifting device removes the battery pack from the vehicle;

[0024] S3. Manually move the battery swapping trolley with the battery pack out and transfer it to the fire battery rack;

[0025] S4. The floating lifting device lifts the battery pack and sends it to the fire battery rack.

[0026] S5. The floating lifting device removes the new battery pack from the fire battery rack;

[0027] S6. Manually move the battery swapping trolley with the new battery pack to the bottom of the vehicle;

[0028] S7. The floating lifting device delivers the battery pack from the battery swapping trolley to the vehicle.

[0029] S8. Manually remove the battery swapping trolley from under the vehicle to complete the battery swapping operation.

[0030] In summary, the beneficial technical effects of the present invention are as follows:

[0031] 1. It enables manual battery swapping and transfer operations even if the battery swapping cart within the battery swapping station is damaged; the battery swapping logic is smooth and the operation is simple.

[0032] 2. The disassembly and replacement of the lifting mechanism are clearly defined, enabling both battery pack disassembly and relocation;

[0033] 3. Fire-fighting battery racks can protect battery packs and prevent spontaneous combustion in case of battery pack malfunction, thus preventing the fire from spreading and endangering other equipment in the battery swapping station. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the battery swapping vehicle in the embodiments of this application;

[0035] Figure 2 This is a structural diagram of the battery swapping vehicle;

[0036] Figure 3 This is a structural diagram of the vehicle body;

[0037] Figure 4 This is a schematic diagram of the floating lifting device;

[0038] Figure 5 This is a structural diagram of the replacement lifting mechanism;

[0039] Figure 6 This is a structural schematic diagram of the floating connection device;

[0040] Figure 7 yes Figure 6 Enlarged view of section A;

[0041] Figure 8 This is a structural diagram of the fire-fighting battery rack;

[0042] Figure 9 yes Figure 8Enlarged view of section B.

[0043] In the diagram, 1. Vehicle body; 11. Underframe; 12. Mounting bracket; 13. Push handle; 14. Side handle; 2. Floating lifting device; 21. Floating plate; 22. Disassembly of lifting mechanism; 221. Lifting plate; 222. Lifting assembly; 223. Positioning pin; 224. Add / remove unlocking pin; 23. Replacement of lifting mechanism; 231. Replacement of main body; 232. Translation plate; 233. Translation slide rail; 234. Translation slider; 24. Connecting plate; 25. Pad; 3. Electrical control box; 31. Display screen; 32. Control buttons; 4. Floating... 41. Moving connection device; 41. Fixed plate; 411. Driven rack; 42. Drive mechanism; 421. Transmission rod; 422. Drive motor; 423. Drive gear; 43. Floating connection end; 44. Floating slide rail; 5. Casters; 6. Fire battery rack; 61. Frame; 62. Support base; 621. Fixed pulley; 622. Fixed slide rail; 63. Buffer platform; 64. Support pad; 65. Fire cover; 651. Positioning plate; 66. Lifting mechanism; 661. Lifting chain; 662. Lifting plate; 663. Lifting pin. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-9 The present invention will be described in further detail below.

[0045] This application discloses an emergency battery swapping system, including a vehicle body 1 composed of a base frame 11 and a mounting frame 12. Both the base frame 11 and the mounting frame 12 are rectangular, with the base frame 11 being larger than the mounting frame 12. The mounting frame 12 is located at one end of the base frame 11. Four self-locking casters 5 are provided on the lower end face of the base frame 11, located at the four corners of the base frame 11. The base frame 11 can move on the ground under the action of the casters 5. A push handle 13 is fixedly connected to the side of the mounting frame 12 away from the base frame 11. The push handle 13 is arranged vertically. A side handle 14 is provided on one side of the base frame 11, inserted into and detachably connected to the base frame 11. The side handle 14 is arranged vertically. The push handle 13 and the side handle 14 are located on different sides of the base frame 11.

[0046] A floating plate 21 is mounted on the base frame 11. The floating plate 21 is rectangular and smaller than the base frame 11. A rectangular connecting plate 24 is connected to one side of the floating plate 21 along its length. Two sets of disassembly and lifting mechanisms 22 are fixedly connected to the floating plate 21. The two sets of disassembly and lifting mechanisms 22 are located at opposite ends of the floating plate 21. A replacement lifting mechanism 23 is provided between the two sets of disassembly and lifting mechanisms 22 and is also connected to the floating plate 21. The two sets of disassembly and lifting mechanisms 22 and the replacement lifting mechanism 23 together constitute the floating lifting device 2 of this application.

[0047] The disassembly lifting mechanism 22 includes a horizontally arranged lifting plate 221 and a lifting mechanism connected to the lifting plate 221. In this embodiment, the lifting assembly 222 includes a lifting scissor arm and a lifting motor for driving the lifting scissor arm. Under the drive of the lifting mechanism, the lifting plate 221 rises and falls vertically. A positioning pin 223 is fixedly connected to the upper surface of each lifting plate 221. The positioning pin 223 is arranged vertically and located at the corner of the lifting plate 221. The positions of the positioning pins 223 on different lifting plates 221 are different. An unlocking pin 224 is slidably arranged on each lifting plate 221. The unlocking pin 224 slides vertically. In this embodiment, two unlocking pins 224 are provided on one lifting plate 221, and the two unlocking pins 224 are located at opposite ends of the lifting plate 221. A pad 25 is fixedly connected to the upper surface of the lifting plate 221. The pad 25 is rectangular and located at the corner of the lifting plate 221.

[0048] The replacement lifting mechanism 23 includes a replacement body 231 and a translation plate 232 slidably mounted on the replacement body 231. Both the replacement body 231 and the translation plate 232 are rectangular. A lifting scissor arm is connected to the side of the replacement body 231 facing away from the translation plate 232, and the lifting scissor arm drives the replacement body 231 to rise and fall vertically. Two translation slide rails 233 are provided on the replacement body 231, and the two translation slide rails 233 are located on both sides of the length direction of the replacement body 231. A translation slider 234 is slidably connected to each translation slide rail 233. The translation slider 234 is fixedly connected to the translation plate 232, so that the translation plate 232 can slide relative to the replacement body 231 along the translation slide rail 233. A pad 25 is fixedly connected to the side of the translation plate 232 away from the replacement body 231. The pad 25 is rectangular. In this embodiment, the number of pads 25 on the translation plate 232 is set to four, and the four pads 25 are located at the four corners of the translation plate 232 respectively.

[0049] A drive motor 422 is fixedly connected to one end of the base frame 11. Transmission rods 421 are rotatably connected to both sides of the base frame 11 along its length. A transmission chain connects the drive motor 422 to the two transmission rods 421, allowing the drive motor 422 to drive the transmission rods 421 to rotate circumferentially. Referring to the figure, drive gears 423 are fitted onto both ends of the transmission rods 421. The drive gears 423 are coaxially arranged with the transmission rods 421. A fixed plate 41 is positioned vertically above each drive gear 423. A driven rack 411 is fixedly connected to the end face of the fixed plate 41 facing the drive gear 423. The drive gear 423 meshes with the driven rack 411. The drive motor 422, transmission rods 421, drive gears 423, and driven rack 411 together constitute a drive mechanism 42 for moving the fixed plate 41. The base frame 11 is provided with several floating slide rails 44, the length direction of which is consistent with the length direction of the driven rack 411. The fixed plate 41 is slidably mounted on the floating slide rails 44. A floating connecting end 43 is provided on the lower end surface of the fixed plate 41, and the end of the floating connecting end 43 away from the fixed plate 41 is connected to the connecting plate 24. The fixed plate 41, the drive mechanism 42, and the floating connecting end 43 constitute the floating connecting device 4 of this application.

[0050] The mounting bracket 12 holds an electrical control box 3. The electrical control box 3 is electrically connected to the floating lifting device 2 and the floating connection device 4. The electrical control box 3 is equipped with a display screen 31 and several control buttons 32. The multiple control buttons 32 are arranged at intervals along the length of the electrical control box 3.

[0051] The emergency battery swapping system disclosed in this application also includes a fire-fighting battery rack 6. The fire-fighting battery rack 6 includes a frame 61, which includes four vertically arranged supports. A support base 62 is fixedly connected to the middle of the frame 61. The support base 62 is box-shaped with one open end. A buffer platform 63 is slidably connected inside the support base 62. A fixed pulley 621 is rotatably arranged on the inner side wall of the end of the support base 62 away from the open end. Fixed slide rails 622 are arranged on both sides of the buffer platform 63 along its length. The fixed slide rails 622 cooperate with the fixed pulleys 621 to facilitate the sliding of the buffer platform 63. Multiple support pads 64 are arranged inside the buffer platform 63. The support pads 64 are spaced apart along the length of the buffer platform 63. The height of the support pads 64 is greater than the sum of the thickness of the replacement body 231 and the translation plate 232.

[0052] A fire-fighting battery rack 6 is equipped with a fire cover 65 on its upper part. The fire cover 65 protects the battery pack and prevents spontaneous combustion of the battery pack in case of malfunction, thus preventing the fire from spreading and endangering other equipment in the battery swapping station. A lifting chain 661 is installed at the top of the fire-fighting battery rack 6, extending vertically downwards. A lifting plate 662 is fixed to the lifting chain 661, and a positioning pin 223 is provided on the lifting plate 662. Positioning plates 651 with through holes are located at the four corners of the bottom of the fire cover 65, for engaging with the positioning pins 223. The lifting chain 661, lifting plates 662, and lifting pins 663 constitute a lifting mechanism 66 for moving the fire cover 65 vertically, thus enabling the movement of the fire cover 65.

[0053] This embodiment also discloses a battery swapping method applied to the above-mentioned emergency battery swapping system, including the following steps:

[0054] S1. Manually move the battery swapping trolley to the bottom of the vehicle until the side of the electrical control box 3 on the battery swapping trolley is aligned with the battery rack on the vehicle to be swapped.

[0055] S2. After the trolley is in place, the operator observes the deviation between the battery positioning pin 223 and the battery hole of the battery pack on the vehicle to be swapped. After the floating lifting mechanism is adjusted by controlling the control button 32, the disassembly lifting mechanism 22 is lifted, the positioning pin 223 is inserted into the battery hole, the unlocking mechanism is lifted to unlock the battery pack, and after the vehicle battery pack is removed, the disassembly lifting mechanism 22 is lowered.

[0056] S3. Manually move the battery swapping trolley with the battery pack out and transfer it to the fire battery rack 6.

[0057] S4. The buffer platform 63 extends. The replacement lifting mechanism 23 is controlled by the control button 32 to lift the battery pack until the replacement body 231 is higher than the buffer platform 63. The battery swapping trolley is manually pushed until the replacement body 231 is above the buffer platform 63. Since the bottom of the replacement lifting mechanism 23 is a scissor lift, the extended end of the buffer platform 63 is in a suspended state. Therefore, the buffer platform 63 can be embedded between the replacement body 231 and the floating plate 21 to avoid the translation plate 232 extending too far and causing instability. The translation plate 232 extends until the battery pack is directly above the buffer platform 63. The replacement lifting mechanism 23 is lowered until the battery pack is placed on the support pad 64. The translation plate 232 is removed and the replacement lifting mechanism 23 is lowered again so that the battery pack is stored on the battery rack of the fire-fighting battery swapping rack.

[0058] S5. The buffer platform 63 extends, the replacement lifting mechanism 23 rises, and the translation plate 232 moves toward the buffer platform 63 to remove the new battery pack. The translation plate 232 moves the new battery pack onto the battery swapping trolley. The operator observes the deviation between the battery positioning pin 223 and the battery hole of the new battery pack. After the floating lifting mechanism is adjusted by controlling the control button 32, the new battery pack is fixed on the battery swapping trolley.

[0059] S6. Manually move the battery swapping trolley with the new battery pack to the bottom of the vehicle;

[0060] S7. After the trolley is in place, the operator controls the floating lifting mechanism and the disassembly lifting mechanism 22 to lift and unlock the mechanism to lock the battery pack. After the new battery pack is replaced, the floating lifting mechanism and the disassembly lifting mechanism 22 will lower.

[0061] S8. Manually remove the battery swapping trolley from under the vehicle to complete the battery swapping operation.

[0062] The implementation principle of this embodiment is as follows: the operator pushes the battery swapping trolley to remove the battery pack from the vehicle to be swapped and moves the trolley to the fire-fighting battery rack 6. The empty battery pack is stored on the fire-fighting battery rack 6, and then the new battery pack is removed from the fire-fighting battery rack 6 and installed on the vehicle to be swapped. The battery swapping trolley disclosed in this application has a simple structure and can perform battery swapping operations independently without relying on other devices in the battery swapping station. When the existing trolley in the battery swapping station is damaged, the operator can perform battery swapping operations in a timely manner, which improves the risk resistance capability of the battery swapping station. The disassembly of the lifting mechanism 22 and the replacement of the lifting mechanism 23 are clearly divided, which can not only complete the disassembly and assembly of the battery pack, but also complete the transfer of the battery pack. The structure is simple, the operation is convenient, and the practicality is improved. In addition, the fire-fighting battery rack 6 can protect the safety of the battery pack and prevent the battery pack from spontaneously combusting due to failure, and prevent the fire from spreading and endangering other equipment in the battery swapping station.

[0063] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An emergency battery swapping system, comprising a battery swapping trolley, characterized in that: The battery swapping vehicle includes a vehicle body (1), a floating lifting device (2) for driving the battery pack to move in the vertical direction is provided on the vehicle body (1), and an electrical control box (3) for controlling the floating lifting device (2) is provided on the vehicle body (1). The vehicle body (1) is provided with a floating connection device (4) that is connected to the floating lifting device (2). Several casters (5) are provided on the side of the vehicle body (1) that is away from the floating lifting device (2). It also includes a fire-fighting battery rack (6); The floating lifting device (2) includes a floating plate (21) mounted on a base frame (11), a disassembly lifting mechanism (22) mounted on the floating plate (21), and a replacement lifting mechanism (23). The floating plate (21) is provided with a connecting plate (24) for the floating connection device (4). The disassembly lifting mechanism (22) includes a lifting plate (221) and a lifting assembly (222) for lifting the lifting plate (221). The lifting plate (221) is provided with a positioning pin (223) and an unlocking pin (224). The unlocking pin (224) is slidably disposed on the lifting plate (221) in the vertical direction. The replacement lifting mechanism (23) includes a replacement body (231) and a translation plate (232) slidably disposed on the replacement body (231). A translation slide rail (233) is provided on the replacement body (231), and a translation slider (234) is slidably disposed on the translation slide rail (233). The translation plate (232) and the translation slider (234) are fixedly connected. The vehicle body (1) includes a chassis (11) and a mounting frame (12) at one end of the chassis (11). The floating lifting device (2) is mounted on the chassis (11), and the electrical control box (3) is mounted on the mounting frame (12). A push handle (13) is provided on one side of the mounting frame (12), and the push handle (13) is arranged in a vertical direction. A side armrest (14) is detachably provided on one side of the base frame (11), and the side armrest (14) and the push armrest (13) are located on different sides of the base frame (11).

2. The emergency battery swapping system according to claim 1, characterized in that: The disassembly lifting mechanism (22) is provided in multiple intervals on the floating plate (21), and the replacement lifting mechanism (23) is located between two adjacent disassembly lifting mechanisms (22).

3. The emergency battery swapping system according to claim 1, characterized in that: The floating connection device (4) includes a fixed plate (41), a drive mechanism (42) for driving the fixed plate (41) to move, and a floating connection end (43) disposed on the fixed plate (41). The end of the floating connection end (43) away from the fixed plate (41) is connected to the connection plate (24). A floating slide rail (44) is disposed on the base frame (11), and the fixed plate (41) is slidably disposed on the floating slide rail (44).

4. An emergency battery swapping system according to claim 3, characterized in that: The drive mechanism (42) includes a transmission rod (421), a drive motor (422) for driving the transmission rod (421) to rotate, a drive gear (423) disposed on the transmission rod (421), and a driven rack (411) fixedly connected to the fixed plate (41). The drive gear (423) meshes with the driven rack (411).

5. An emergency battery swapping system according to claim 1, characterized in that: The fire battery rack (6) includes a frame (61), a support base (62) set in the frame (61), and a buffer platform (63) slidably set in the support base (62). The buffer platform (63) slides toward the vehicle body (1), and a support pad (64) is provided on the buffer platform (63). A fire cover (65) is slidably mounted on the frame (61), and a lifting mechanism (66) is provided on the frame (61) for moving the fire cover (65).

6. A battery pack swapping method, characterized in that: The emergency battery swapping system applied to any one of claims 1-5 comprises the following steps: S1. Manually move the battery swapping trolley to the bottom of the vehicle; S2, The floating lifting device (2) removes the battery pack from the vehicle; S3. Manually move the battery swapping trolley with the battery pack out and transfer it to the fire battery rack (6); S4. The floating lifting device (2) lifts the battery pack and sends it to the fire battery rack (6); S5. The floating lifting device (2) removes the new battery pack from the fire battery rack (6); S6. Manually move the battery swapping trolley with the new battery pack to the bottom of the vehicle; S7. The floating lifting device (2) delivers the battery pack from the battery swapping trolley to the vehicle. S8. Manually remove the battery swapping trolley from under the vehicle to complete the battery swapping operation.

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