A bottom support for battery swapping of new energy vehicles

Abstract

The present invention relates to the technical field of battery replacement equipment, and discloses a base support for battery replacement of new energy vehicles, comprising: a base support plate, which is fixedly mounted on a vehicle frame, and is provided with a driving assembly and a secondary buffer assembly therein, wherein two first locking frames are slidably mounted in the base support plate, and the two first locking frames are driven by the driving assembly to move toward each other. The present invention forms an integral frame through the base support plate, a carrier frame equipped with a power battery pack, and a bottom plate, and fixes the base support plate on the vehicle frame. The connection between the carrier frame and the base support plate serves as the main frame for supporting the power battery pack. Through the outward expansion and inward contraction of the first locking frame and the second locking frame on the base support plate, the disassembly and installation of the carrier frame can be completed conveniently and quickly. The connection between the bottom plate and the bottom of the vehicle can also provide additional support for the carrier frame, thereby ensuring the stability of the installation structure. The built-in secondary buffer assembly of the base support plate can also assist in the disassembly of the carrier frame during disassembly.

Description

Technical Field

[0001] The present invention relates to the technical field of battery replacement equipment, and in particular to a base for battery replacement of new energy vehicles. Background Art

[0002] New energy vehicles are experiencing rapid development due to their energy-saving and environmentally friendly features. However, the limitation of driving range has become a bottleneck restricting their further popularization. Under the current technological background, traditional charging methods usually take several hours to fully charge the battery, which is a great inconvenience for users. In order to solve this problem, a new solution has emerged on the market - battery swapping technology. Battery swapping technology allows electric vehicles to quickly replace depleted battery packs at dedicated battery swapping stations. The entire process takes only a few minutes, which is comparable to the refueling time of traditional fuel vehicles. The application of this technology significantly reduces the user's waiting time and enables continuous driving of electric vehicles through pre-charged battery packs, greatly improving the convenience and flexibility of electric vehicles.

[0003] Under the current situation that power battery technology has not yet achieved a breakthrough improvement in energy density, increasing the number of batteries has become a direct means to extend the battery life of electric vehicles. The ensuing problem is that the total weight of the power battery pack has increased significantly. In order to support these heavy power battery packs, new energy vehicles are usually equipped with special battery bases, which not only fix the battery packs, but also disperse the weight and protect the batteries. However, traditional battery base designs often rely on welding or bolting, and the disassembly and assembly of various parts is relatively difficult, which makes it particularly inconvenient when the power battery pack needs to be replaced or repaired. In addition, due to the huge weight of the power battery pack and the limited space under the vehicle, the disassembly and installation process is extremely challenging, and unstable operation is very likely to cause the power battery pack to accidentally slip, thereby posing a serious safety risk. Based on this, the present invention purposely provides a base for new energy vehicle battery replacement that can facilitate the installation and disassembly of the power battery pack. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies in the prior art and provide a base bracket for new energy vehicle battery replacement that can facilitate the installation and removal of power battery packs, so as to solve the technical problem that the base bracket is not easy to remove, resulting in difficulty in replacing the power battery pack.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A base for battery replacement of new energy vehicles, comprising:

[0007] The bottom support plate is fixedly installed on the vehicle frame, and a driving component and a secondary buffer component are arranged inside it. Two first locking frames are slidably installed inside the bottom support plate, and both of the two first locking frames are driven by the driving component to move towards each other. Two second locking frames are correspondingly arranged for each first locking frame. The two second locking frames are symmetrically arranged with respect to the first locking frame and are both driven by the driving component to move towards each other. The second locking frames are slidably installed inside the bottom support plate. A wedge block is fixedly installed at the bottom end of each first locking frame and each second locking frame. An inclined side is provided on each wedge block. When the first locking frame moves towards the outside of the bottom support plate, the second locking frame synchronously moves towards the outside of the bottom support plate; when the first locking frame moves towards the inside of the bottom support plate, the second locking frame synchronously moves towards the inside of the bottom support plate.

[0008] The bearing frame is located below the bottom support plate and is between the first locking frame and the second locking frame. A power battery pack is loaded inside the bearing frame. The power battery pack is located below the secondary buffer component. Six wedge-shaped grooves are opened around the bottom of the bearing frame. An inclined angle is provided inside the wedge-shaped grooves. The wedge-shaped grooves are in sliding fit with the wedge blocks, and the inclined angle is in sliding fit with the inclined side. And

[0009] The bottom plate is provided with a plurality of first reserved holes around its perimeter. A screw is inserted into each first reserved hole. The bottom plate is fixedly connected to the vehicle bottom through the screws and is in contact with the bottom of the bearing frame.

[0010] As a further solution of the present invention: The driving component includes a bidirectional lead screw and a linkage rod. The bidirectional lead screw is rotatably installed inside the bottom support plate, and its two ends are respectively threadedly connected to the two first locking frames. One end of the linkage rod is rotatably connected to one end of the second locking frame, and the other end of the linkage rod is rotatably connected to one end of the first locking frame.

[0011] As a further solution of the present invention: The number of the secondary buffer components is not less than three groups, and multiple groups of secondary buffer components are horizontally equidistantly distributed.

[0012] As a further solution of the present invention: The secondary buffer component includes a buffer plate, a slider, a chute, a spring, and a buffer support assembly. The two chutes are opened on the bottom support plate, and the two chutes are symmetrically arranged. A slider is connected to each chute through a spring. The slider is slidably installed inside the chute and is connected to the buffer plate through the buffer support assembly. The buffer plate is located above the power battery pack.

[0013] As a further solution of the present invention: The buffer support assembly includes a first connecting rod, a round rod, a second connecting rod and a waist-shaped groove. The round rod is fixedly installed in the middle of the first connecting rod. The waist-shaped groove is opened in the middle of the second connecting rod. The round rod is slidably installed in the waist-shaped groove. One ends of the first connecting rod and the second connecting rod are rotatably connected to the buffer plate, and the other ends of both are respectively rotatably connected to two sliders. The distance between the rotational connection of the first connecting rod and the buffer plate and the rotational connection of the second connecting rod and the buffer plate is constant.

[0014] As a further solution of the present invention: A plurality of guide blocks are fixedly installed at the bottom of the bottom support plate. The guide blocks are slidably connected to the carrier frame. The guide blocks are slidable with the buffer plate. The bottom ends of the guide blocks are provided with rounded corners.

[0015] As a further solution of the present invention: A threaded hole is opened at the bottom of each wedge block. A plurality of second reserved holes with the same aperture as the threaded hole are opened on the bottom plate.

[0016] As a further solution of the present invention: A connecting plate is fixedly installed at the top of the power battery pack. The connecting plate is located above the carrier frame.

[0017] As a further solution of the present invention: A cooling channel is opened inside the carrier frame. The carrier frame is communicated with an inlet pipe and an outlet pipe. Both the inlet pipe and the outlet pipe are communicated with the in-vehicle cooling circulation assembly.

[0018] As a further solution of the present invention: Flexible layers are provided on both the bottom of the buffer plate and the inner wall of the carrier frame.

[0019] The beneficial effects of the present invention:

[0020] 1. In the present invention, a whole frame is formed by the bottom support plate, the carrier frame containing the power battery pack and the bottom plate. The bottom support plate is fixed on the vehicle frame. The connection between the carrier frame and the bottom support plate serves as the main frame for supporting the power battery pack. Through the outward expansion and inward retraction of the first locking frame and the second locking frame on the bottom support plate, the disassembly and installation of the carrier frame can be completed conveniently and quickly. Moreover, the connection between the bottom plate and the vehicle bottom can also provide additional support for the carrier frame, ensuring the stability of the installation structure. And the secondary buffer assembly built in the bottom support plate can play a buffering role for the power battery pack after installation, and can assist in the disassembly of the carrier frame during disassembly;

[0021] 2. In the present invention, when the carrier is installed, since its upward movement will cause the power battery pack to abut against the buffer plate, thereby pushing the buffer plate upward. The buffer plate transmits the force to the slider through the buffer support assembly, causing the slider to slide in the chute and compress the spring. When the spring is compressed to a certain state, that is, the pre-compressed state, at this time the installation of the carrier is also completed. Then when the vehicle encounters bumps during driving, the spring can play a buffering role for the power battery pack, thereby protecting the power battery pack. When disassembling the carrier, the elastic force of the spring acts on the buffer plate through the buffer support assembly, and will always generate a downward thrust on the buffer plate, which can help the carrier to separate from the bottom support plate, and there is no need for manual use of tools to pry the carrier out of the bottom support plate;

[0022] 3. In the present invention, after the bottom plate is installed on the vehicle floor by passing screws through the first reserved holes, then select screws to pass through the second reserved holes and screw them into the threaded holes, thereby fixedly installing the bottom plate on the wedge block, and the bottom plate is fixedly installed on the vehicle floor, so as to provide a more stable supporting effect for the carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 is the overall structural schematic diagram of the present invention;

[0025] Figure 2 is the structural schematic diagram of the cross-section of the bottom support plate in the present invention;

[0026] Figure 3 is in the present invention Figure 2 is the structural schematic diagram of the bottom view;

[0027] Figure 4 is the structural schematic diagram of the wedge block in the present invention;

[0028] Figure 5 is the structural schematic diagram of the wedge groove in the present invention;

[0029] Figure 6 is the structural schematic diagram of the secondary buffer assembly in the present invention;

[0030] Figure 7 is the structural schematic diagram of the bottom plate in the present invention.

[0031] In the figure: 1, bottom support plate; 2, carrier; 201, cooling channel; 202, water inlet pipe; 203, water outlet pipe; 3, bottom plate; 301, first reserved hole; 302, second reserved hole; 4, power battery pack; 401, connecting plate; 5, wedge groove; 501, bevel angle; 6, wedge block; 601, hypotenuse; 602, threaded hole; 7, first locking frame; 8, second locking frame; 9, linkage rod; 10, bidirectional lead screw; 11, guide block; 1101, rounded corner; 12, buffer plate; 13, flexible layer; 14, secondary buffer assembly; 15, first connecting rod; 1501, round rod; 16, second connecting rod; 1601, waist-shaped groove; 17, slider; 18, chute; 1801, spring. Detailed implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1-7 As shown, the present invention is a bottom support for new energy vehicle battery swapping, including:

[0034] The bottom support plate 1 is fixedly installed on the vehicle frame, and a driving component and a secondary buffer assembly 14 are arranged therein. Two first locking frames 7 are slidably installed in the bottom support plate 1, and both of the two first locking frames 7 are driven by the driving component to move towards each other. Two second locking frames 8 are correspondingly arranged for each first locking frame 7. The two second locking frames 8 are symmetrically arranged with respect to the first locking frame 7 and are both driven by the driving component to move towards each other. The second locking frames 8 are slidably installed in the bottom support plate 1. A wedge block 6 is fixedly installed at the bottom end of each first locking frame 7 and each second locking frame 8. A hypotenuse 601 is arranged on each wedge block 6. When the first locking frame 7 moves towards the outside of the bottom support plate 1, the second locking frame 8 synchronously moves towards the outside of the bottom support plate 1; when the first locking frame 7 moves towards the inside of the bottom support plate 1, the second locking frame 8 synchronously moves towards the inside of the bottom support plate 1;

[0035] The carrier 2 is located below the bottom support plate 1 and is located between the first locking frame 7 and the second locking frame 8. A power battery pack 4 is loaded in the carrier 2. The power battery pack 4 is located below the secondary buffer assembly 14. Six wedge grooves 5 are opened around the bottom of the carrier 2. A bevel angle 501 is arranged in the wedge groove 5. The wedge groove 5 is slidably matched with the wedge block 6, and the bevel angle 501 is slidably matched with the hypotenuse 601; and

[0036] The bottom plate 3 is provided with a plurality of first reserved holes 301 around its perimeter. A screw is inserted into each first reserved hole 301, and the bottom plate 3 is fixedly connected to the vehicle bottom through the screws and is in contact with the bottom of the carrier frame 2.

[0037] In practical application of this embodiment, when the power battery pack 4 needs to be replaced, first, use an automotive lift to raise the vehicle to an appropriate height. Then, remove the bottom plate 3 from the vehicle bottom. At this time, the carrier frame 2 installed in the bottom support plate 1 is exposed. Second, move the platform of the lifting machine close to the bottom of the carrier frame 2, leaving a certain space to prevent the platform of the lifting machine from exerting excessive pressure on the bottom of the carrier frame 2 after contacting it, which may damage the connection structure between the bottom support plate 1 and the vehicle frame and between the bottom support plate 1 and the carrier frame 2. Manually control the driving component to drive each first locking frame 7 and the second locking frame 8 to expand outward until the wedge-shaped blocks 6 at the bottoms of the first locking frame 7 and the second locking frame 8 are completely removed from the wedge-shaped grooves 5 at the bottom of the carrier frame 2. At this time, the unlocking process is completed, that is, the operation of removing the carrier frame 2 from the bottom support plate 1 is completed. At this time, the carrier frame 2 is located on the platform of the lifting machine. Then, the worker can disassemble the power battery pack 4 installed in the carrier frame 2 and replace or repair it; during installation, raise the carrier frame 2 equipped with the new power battery pack 4 through the platform of the lifting machine. When the wedge-shaped groove 5 is aligned with the wedge-shaped block 6, stop raising the platform of the lifting machine and manually control the driving component to drive each first locking frame 7 and the second locking frame 8 to retract inward. At this time, the hypotenuse 601 on the wedge-shaped block 6 will abut against the bevel angle 501 in the wedge-shaped groove 5. As the first locking frame 7 and the second locking frame 8 retract inward, the wedge-shaped block 6 will gradually penetrate into the wedge-shaped groove 5, and the bevel angle 501 will slide on the hypotenuse 601, so that the carrier frame 2 will gradually rise. During this process, the contact area between the bevel angle 501 and the hypotenuse 601 gradually increases, and the top of the power battery pack 4 abuts against the secondary buffer assembly 14 and gradually compresses the secondary buffer assembly 14 until the wedge-shaped groove 5 is completely inserted into the wedge-shaped block 6, the bevel angle 501 and the hypotenuse 601 are in full contact, and the secondary buffer assembly 14 reaches the pre-compressed state. Finally, reinstall the bottom plate 3 on the vehicle bottom, that is, complete the replacement operation of the entire power battery pack 4.

[0038] In the process of removing the carrier 2 from the bottom support plate 1, as the first locking frame 7 and the second locking frame 8 expand outward, the wedge block 6 will gradually move out of the wedge groove 5. Under the gravity of the carrier 2 and the power battery pack 4 and the rebound force of the secondary buffer assembly 14, the carrier 2 will move downward, and the hypotenuse 601 will always fit with the bevel 501, and the two will slide together, but the contact area between the two will gradually decrease, so as to ensure that the carrier 2 is always supported by the wedge block 6 during the descent process, and finally the carrier 2 will smoothly descend to the platform of the lifting machine, and then the first locking frame 7 and the second locking frame 8 will continue to expand outward until the wedge block 6 is completely moved out of the wedge groove 5. At this time, the carrier 2 is located between the secondary buffer assembly 14 and the lifting machine platform, and the rebound force of the secondary buffer assembly 14 can ensure the stability of the position of the carrier 2 on the lifting machine platform.

[0039] The bottom tray 1, the carrier frame 2 equipped with the power battery pack 4 and the bottom plate 3 form an integral frame, and the bottom tray 1 is fixed on the vehicle frame. The connection between the carrier frame 2 and the bottom tray 1 serves as the main frame for supporting the power battery pack 4. The disassembly and installation of the carrier frame 2 can be completed conveniently and quickly through the outward expansion and inward contraction of the first locking frame 7 and the second locking frame 8 on the bottom tray 1. The connection between the bottom plate 3 and the bottom of the vehicle can also provide additional support for the carrier frame 2, ensuring the stability of the installation structure. The built-in secondary buffer assembly 14 of the bottom tray 1 can buffer the power battery pack 4 after installation, and can assist in the disassembly of the carrier frame 2 during disassembly.

[0040] like Figure 2 As shown, as a preferred embodiment of the present invention, the driving assembly includes a bidirectional screw rod 10 and a linkage rod 9, the bidirectional screw rod 10 is rotatably installed in the bottom support plate 1, and its two ends are respectively threadedly connected to the two first locking frames 7, one end of the linkage rod 9 is rotatably connected to one end of the second locking frame 8, and the other end of the linkage rod 9 is rotatably connected to one end of the first locking frame 7.

[0041] In practical application, this embodiment is based on Figure 2Taking the direction shown as an example, manually rotate the bidirectional lead screw 10 clockwise. Due to the threaded connection between the bidirectional lead screw 10 and the first locking bracket 7, the two first locking brackets 7 will simultaneously move towards the middle of the base plate 1. At the same time, the two second locking brackets 8 are pulled closer to the first locking bracket 7 through the linkage rod 9, that is, the second locking bracket 8 also moves towards the middle of the base plate 1, so as to realize the state where the first locking bracket 7 and the second locking bracket 8 are simultaneously retracted inward, for installing the carrier 2 on the base plate 1; conversely, manually rotate the bidirectional lead screw 10 counterclockwise, the two first locking brackets 7 move towards the outside of the base plate 1, and the two second locking brackets 8 are pushed away from the first locking bracket 7 through the linkage rod 9, that is, the second locking bracket 8 synchronously moves towards the outside of the base plate 1, so as to realize the state where the first locking bracket 7 and the second locking bracket 8 are simultaneously expanded outward, for removing the carrier 2 from the base plate 1. Through this structure, the synchronous control of the first locking bracket 7 and the second locking bracket 8 is realized, so that the carrier 2 can be uniformly stressed, and the installation and disassembly process of the carrier 2 can be more stably controlled.

[0042] As Figure 4 shown, as a preferred embodiment of the present invention, the number of the secondary buffer components 14 is not less than three groups, and multiple groups of secondary buffer components 14 are horizontally equidistantly distributed.

[0043] In actual application of this embodiment, through the equidistant arrangement of multiple groups of secondary buffer components 14, a more uniform buffering effect and rebound force can be provided for the power battery pack 4, which is more beneficial to the installation and disassembly of the power battery pack 4.

[0044] As Figures 2-4 shown, as a preferred embodiment of the present invention, the secondary buffer component 14 includes a buffer plate 12, a slider 17, a chute 18, a spring 1801 and a buffer bracket assembly. The two chutes 18 are opened on the base plate 1, and the two chutes 18 are symmetrically arranged. Each chute 18 is connected with a slider 17 through a spring 1801. The slider 17 is slidably installed in the chute 18, and is connected with the buffer plate 12 through the buffer bracket assembly. The buffer plate 12 is located above the power battery pack 4.

[0045] In actual application of this embodiment, when the carrier 2 is installed, since its upward movement will cause the power battery pack 4 to abut against the buffer plate 12, thereby pushing the buffer plate 12 upward. The buffer plate 12 transmits the force to the slider 17 through the buffer support assembly, causing the slider 17 to slide in the chute 18 and compress the spring 1801. When the spring 1801 is compressed to a certain state, that is, the pre-compression state, at this time the installation of the carrier 2 is also completed. Then when the vehicle encounters bumps during driving, the spring 1801 can play a buffering role for the power battery pack 4, thereby protecting the power battery pack 4; and when disassembling the carrier 2, the elastic force of the spring 1801 acts on the buffer plate 12 through the buffer support assembly, and will always generate a downward thrust on the buffer plate 12, which can help the carrier 2 to separate from the bottom support plate 1, without the need for manual use of tools to pry the carrier 2 out of the bottom support plate 1.

[0046] As Figure 6 shown, as a preferred embodiment of the present invention, the buffer support assembly includes a first connecting rod 15, a round rod 1501, a second connecting rod 16 and a waist-shaped groove 1601. The round rod 1501 is fixedly installed in the middle of the first connecting rod 15. The waist-shaped groove 1601 is opened in the middle of the second connecting rod 16. The round rod 1501 is slidably installed in the waist-shaped groove 1601. One ends of the first connecting rod 15 and the second connecting rod 16 are rotatably connected to the buffer plate 12, and the other ends of both are respectively rotatably connected to the two sliders 17. The distance between the rotational connection position of the first connecting rod 15 and the buffer plate 12 and the rotational connection position of the second connecting rod 16 and the buffer plate 12 is constant.

[0047] In actual application of this embodiment, whether it is when installing the carrier 2 or when the vehicle is driving bumpily, when the buffer plate 12 is abutted and moved upward by the power battery pack 4, one ends of the first connecting rod 15 and the second connecting rod 16 rotate on the buffer plate 12, and the round rod 1501 will slide in the waist-shaped groove 1601. This process needs to overcome the friction between the round rod 1501 and the waist-shaped groove 1601, so it can be regarded as a primary buffer. The other ends of the first connecting rod 15 and the second connecting rod 16 will push the two sliders 17 to move, and the sliders 17 will squeeze the spring 1801. This process is regarded as a secondary buffer, so as to achieve the effect of multi-stage buffering. And in this structure, the rotational connection positions of the first connecting rod 15 and the second connecting rod 16 with the buffer plate 12 remain unchanged, avoiding the problem that the buffering effect changes due to the change of the force application point of the buffer plate 12.

[0048] As Figure 6 shown, as a preferred embodiment of the present invention, a plurality of guide blocks 11 are fixedly installed at the bottom of the bottom support plate 1. The guide blocks 11 are slidably connected to the carrier 2. The guide blocks 11 are slidably connected to the buffer plate 12. The bottom end of the guide block 11 is provided with a rounded corner 1101.

[0049] In actual application of this embodiment, the guiding block 11 can form a rough installation area at the bottom of the bottom support plate 1. When installing the bearing frame 2, align the bearing frame 2 with the installation area surrounded by the guiding block 11, and then insert the bearing frame 2 to achieve quick installation. At this time, the guiding block 11 plays a role in assisting installation, and the rounded corner 1101 can prevent the edge of the bearing frame 2 from directly hitting the guiding block 11. The buffer plate 12 slides on the guiding block 11, which can ensure that the buffer plate 12 is always in a horizontal position.

[0050] As Figure 3 shown, as a preferred embodiment of the present invention, a threaded hole 602 is provided at the bottom of each of the wedge blocks 6, and a plurality of second reserved holes 302 with the same aperture as the threaded hole 602 are provided on the bottom plate 3.

[0051] In actual application of this embodiment, after installing the bottom plate 3 on the vehicle bottom by passing a screw through the first reserved hole 301, then select a screw to pass through the second reserved hole 302 and screw it into the threaded hole 602, so as to fixedly install the bottom plate 3 on the wedge block 6, and the bottom plate 3 is fixedly installed on the vehicle bottom, thereby providing a more stable supporting effect for the bearing frame 2.

[0052] As Figures 3-5 shown, as a preferred embodiment of the present invention, a connecting plate 401 is fixedly installed on the top of the power battery pack 4, and the connecting plate 401 is located above the bearing frame 2.

[0053] In actual application of this embodiment, when it is necessary to take out the power battery pack 4 from the bearing frame 2, the connecting plate 401 around the power battery pack 4 can be manually lifted, so as to facilitate taking out the power battery pack 4.

[0054] As Figures 3-5 shown, as a preferred embodiment of the present invention, a cooling channel 201 is provided inside the bearing frame 2, and the bearing frame 2 is communicated with a water inlet pipe 202 and a water outlet pipe 203, and both the water inlet pipe 202 and the water outlet pipe 203 are communicated with the in-vehicle cooling circulation assembly.

[0055] In one case of this embodiment, it should be noted that the in-vehicle cooling circulation assembly described in the present invention includes components such as a coolant circulation pump, a radiator, a water pump, a fan, and a liquid storage tank. The above components are all prior arts, and the present invention has not improved them. Therefore, it is not necessary to disclose their specific mechanical structures and circuit structures, which does not affect the integrity of the present invention.

[0056] In actual application of this embodiment, when the vehicle is running, the power battery pack 4 generates heat. The coolant is injected into the cooling channel 201 through the water inlet pipe 202 by the in-vehicle cooling circulation component, and then flows out from the water outlet pipe 203. The coolant in the cooling channel 201 takes away the heat generated by the power battery pack 4, achieving the purpose of dissipating heat from the power battery pack 4.

[0057] As Figures 3-6 shown, as a preferred embodiment of the present invention, flexible layers 13 are provided on both the bottom of the buffer plate 12 and the inner wall of the carrier 2.

[0058] In actual application of this embodiment, the flexible layer 13 can be selected from a silica gel pad or a rubber pad, and this embodiment does not make specific limitations here; it is used to provide flexible support for the power battery pack 4 to avoid damaging the outer wall of the power battery pack 4.

[0059] Working principle of the present invention: In the above embodiments of the present invention, a bottom bracket for new energy vehicle battery swapping is provided. When the power battery pack 4 needs to be replaced, first, use an automotive lift to raise the vehicle to an appropriate height, and then remove the bottom plate 3 from the bottom of the vehicle. At this time, the carrier 2 installed in the bottom bracket plate 1 is exposed. Secondly, move the platform of the lifting machine close to the bottom of the carrier 2, and manually control the driving component to drive each first locking frame 7 and second locking frame 8 to expand outward until the wedge blocks 6 at the bottoms of the first locking frame 7 and second locking frame 8 are all removed from the wedge slots 5 at the bottom of the carrier 2. At this time, the unlocking process is completed, that is, the operation of removing the carrier 2 from the bottom bracket plate 1 is completed. At this time, the carrier 2 is located on the platform of the lifting machine, and then the worker can disassemble the power battery pack 4 installed in the carrier 2 and replace or repair it; during installation, raise the carrier 2 equipped with the new power battery pack 4 through the platform of the lifting machine. When the wedge slot 5 is aligned with the wedge block 6, stop raising the platform of the lifting machine and manually control the driving component to drive each first locking frame 7 and second locking frame 8 to retract inward. At this time, the hypotenuse 601 on the wedge block 6 will abut against the bevel 501 in the wedge slot 5, and as the first locking frame 7 and second locking frame 8 retract inward, the wedge block 6 will gradually penetrate into the wedge slot 5, and the bevel 501 will slide on the hypotenuse 601, so that the carrier 2 gradually rises. During this process, the contact area between the bevel 501 and the hypotenuse 601 gradually increases, and the top of the power battery pack 4 abuts against the secondary buffer assembly 14 and gradually compresses the secondary buffer assembly 14 until the wedge slot 5 is completely inserted into the wedge block 6, the bevel 501 and the hypotenuse 601 are in full contact and the secondary buffer assembly 14 reaches the pre-compression state. Finally, reinstall the bottom plate 3 to the bottom of the vehicle, that is, complete the entire replacement operation of the power battery pack 4.

[0060] The above has described in detail an embodiment of the present invention, but the above content is only a preferred embodiment of the present invention and cannot be considered as defining the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A base for battery replacement of new energy vehicles, characterized in that: include: A bottom support plate (1) is fixedly mounted on a vehicle frame and is provided with a driving assembly and a secondary buffer assembly (14). Two first locking frames (7) are slidably mounted in the bottom support plate (1). The two first locking frames (7) are driven by the driving assembly to move toward each other. Each first locking frame (7) is correspondingly provided with two second locking frames (8). The two second locking frames (8) are symmetrically arranged with respect to the first locking frames (7) and are driven by the driving assembly to move toward each other. The second locking frames (8) are slidably mounted in the bottom support plate (1). A wedge block (6) is fixedly mounted at the bottom end of each first locking frame (7) and the second locking frame (8). Each wedge block (6) is provided with a bevel (601). When the first locking frame (7) moves toward the outside of the bottom support plate (1), the second locking frame (8) moves toward the outside of the bottom support plate (1) synchronously; when the first locking frame (7) moves toward the inside of the bottom support plate (1), the second locking frame (8) moves toward the inside of the bottom support plate (1) synchronously. A carrier frame (2) is located below the bottom support plate (1) and between the first locking frame (7) and the second locking frame (8); a power battery pack (4) is loaded in the carrier frame (2); the power battery pack (4) is located below the secondary buffer assembly (14); six wedge-shaped grooves (5) are provided around the bottom of the carrier frame (2); an oblique angle (501) is provided in the wedge-shaped groove (5); the wedge-shaped groove (5) is slidably matched with the wedge block (6); and the oblique angle (501) is slidably matched with the oblique edge (601); and A bottom plate (3) is provided with a plurality of first reserved holes (301) on its periphery, a screw is inserted into each first reserved hole (301), the bottom plate (3) is fixedly connected to the bottom of the vehicle via the screws, and is in contact with the bottom of the carrier frame (2); The secondary buffer assembly (14) comprises a buffer plate (12), a slider (17), a slide groove (18), a spring (1801) and a buffer bracket assembly, wherein two slide grooves (18) are provided on the bottom support plate (1), and the two slide grooves (18) are symmetrically arranged, each slide groove (18) is connected to a slider (17) via a spring (1801), the slider (17) is slidably installed in the slide groove (18), and is connected to the buffer plate (12) via the buffer bracket assembly, and the buffer plate (12) is located above the power battery pack (4); The bottom of the buffer plate (12) and the inner wall of the supporting frame (2) are both provided with a flexible layer (13).

2. The base for battery replacement of new energy vehicles according to claim 1 is characterized in that: The driving assembly comprises a bidirectional screw rod (10) and a linkage rod (9); the bidirectional screw rod (10) is rotatably mounted in the bottom support plate (1), and its two ends are respectively threadedly connected to two first locking frames (7); one end of the linkage rod (9) is rotatably connected to one end of the second locking frame (8), and the other end of the linkage rod (9) is rotatably connected to one end of the first locking frame (7).

3. The base for battery replacement of new energy vehicles according to claim 1 is characterized in that: The number of the secondary buffer components (14) is no less than three groups, and the multiple groups of secondary buffer components (14) are distributed in a horizontally equidistant manner.

4. The base for battery replacement of new energy vehicles according to claim 1 is characterized in that: The buffer bracket assembly comprises a first connecting rod (15), a round rod (1501), a second connecting rod (16) and a waist-shaped groove (1601); the round rod (1501) is fixedly mounted at the middle of the first connecting rod (15); the waist-shaped groove (1601) is opened at the middle of the second connecting rod (16); the round rod (1501) is slidably mounted in the waist-shaped groove (1601); one end of the first connecting rod (15) and the second connecting rod (16) are rotatably connected to the buffer plate (12); and the other ends of the first connecting rod (15) and the buffer plate (12) are rotatably connected to two sliders (17) respectively; and the distance between the rotatable connection point between the first connecting rod (15) and the buffer plate (12) and the rotatable connection point between the second connecting rod (16) and the buffer plate (12) is constant.

5. The base for battery replacement of new energy vehicles according to claim 1 is characterized in that: A plurality of guide blocks (11) are fixedly mounted on the bottom of the bottom support plate (1); the guide blocks (11) are slidably connected to the support frame (2); the guide blocks (11) slide with the buffer plate (12); and the bottom ends of the guide blocks (11) are provided with rounded corners (1101).

6. The base for battery replacement of new energy vehicles according to claim 1 is characterized in that: A threaded hole (602) is provided at the bottom of each wedge-shaped block (6), and a plurality of second reserved holes (302) having the same diameter as the threaded hole (602) are provided on the bottom plate (3).

7. The base for battery replacement of new energy vehicles according to claim 1 is characterized in that: A connecting plate (401) is fixedly mounted on the top of the power battery pack (4), and the connecting plate (401) is located above the supporting frame (2).

8. The base for battery replacement of new energy vehicles according to claim 1 is characterized in that: A cooling channel (201) is provided inside the carrier frame (2), and the carrier frame (2) is in communication with a water inlet pipe (202) and a water outlet pipe (203), and both the water inlet pipe (202) and the water outlet pipe (203) are in communication with an in-vehicle cooling circulation component.

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