Bottom support for new energy automobile battery replacement

Abstract

The invention relates to the technical field of battery replacement equipment, and discloses a bottom support for battery replacement of a new energy automobile, which comprises a bottom support plate, the bottom support plate is fixedly mounted on an automobile frame, a driving assembly and a secondary buffer assembly are arranged in the bottom support plate, two first locking frames are slidably mounted in the bottom support plate, and the two first locking frames are driven by the driving assembly to move in opposite directions; an integral frame is formed by the bottom supporting plate, the bearing frame provided with the power battery pack and the bottom plate, the bottom supporting plate is fixed to the vehicle frame, connection of the bearing frame and the bottom supporting plate serves as a main frame for supporting the power battery pack, and the power battery pack can be locked through outward expansion and inward contraction of the first locking frame and the second locking frame on the bottom supporting plate. The bearing frame can be disassembled and assembled conveniently and rapidly, the bottom plate is connected with the vehicle bottom, additional support can be provided for the bearing frame, the stability of the installation structure is guaranteed, and the secondary buffering assembly arranged in the bottom supporting plate can assist in disassembling the bearing frame during disassembling.

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 through the following technical solutions: A base for battery replacement of new energy vehicles, comprising: The bottom support plate is fixedly mounted on the frame, and a driving assembly and a secondary buffer assembly are arranged therein, two first locking frames are slidably mounted in the bottom support plate, the two first locking frames are driven by the driving assembly to move toward each other, each first locking frame is correspondingly provided with two second locking frames, the two second locking frames are symmetrically arranged about the first locking frame and are driven by the driving assembly to move toward each other, the second locking frame is slidably mounted in the bottom support plate, a wedge block is fixedly mounted at the bottom end of each first locking frame and the second locking frame, each wedge block is provided with a bevel, when the first locking frame moves toward the outside of the bottom support plate, the second locking frame moves toward the outside of the bottom support plate synchronously; when the first locking frame moves toward the inside of the bottom support plate, the second locking frame moves toward the inside of the bottom support plate synchronously; A carrier frame, which is located below the bottom support plate and between the first locking frame and the second locking frame, wherein a power battery pack is loaded in the carrier frame, wherein the power battery pack is located below the secondary buffer assembly, wherein six wedge-shaped grooves are provided around the bottom of the carrier frame, wherein the wedge-shaped grooves are provided with bevels, wherein the wedge-shaped grooves are slidably matched with the wedge-shaped blocks, and wherein the bevels are slidably matched with the beveled edges; and The bottom plate is provided with a plurality of first reserved holes around it, each of which is plugged with a screw, and the bottom plate is fixedly connected to the bottom of the vehicle through the screws, and is fitted with the bottom of the carrier frame.

[0006] As a further solution of the present invention: the driving assembly includes a bidirectional screw rod and a linkage rod, the bidirectional screw rod is rotatably installed in 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.

[0007] As a further solution of the present invention: the number of the secondary buffer components is not less than three groups, and the multiple groups of secondary buffer components are distributed in a horizontally equidistant manner.

[0008] As a further solution of the present invention: the secondary buffer assembly includes a buffer plate, a slider, a slide groove, a spring and a buffer bracket assembly, two of the slide grooves are opened on the bottom support plate, and the two slide grooves are symmetrically arranged, each slide groove is connected with a slider through a spring, the slider is slidably installed in the slide groove, and it is connected to the buffer plate through the buffer bracket assembly, and the buffer plate is located above the power battery pack.

[0009] As a further solution of the present invention: the buffer bracket 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, and the round rod is slidably installed in the waist-shaped groove, one end of the first connecting rod and the second connecting rod is rotatably connected to the buffer plate, and the other ends of the two are respectively rotatably connected to two sliders, and the distance between the rotation connection between the first connecting rod and the buffer plate and the rotation connection between the second connecting rod and the buffer plate is constant.

[0010] As a further solution of the present invention: a plurality of guide blocks are fixedly installed on the bottom of the bottom support plate, the guide blocks are slidably connected to the carrier frame, the guide blocks slide with the buffer plate, and the bottom ends of the guide blocks are provided with rounded corners.

[0011] As a further solution of the present invention: a threaded hole is provided at the bottom of each wedge-shaped block, and a plurality of second reserved holes having the same diameter as the threaded hole are provided on the bottom plate.

[0012] As a further solution of the present invention: a connecting plate is fixedly installed on the top of the power battery pack, and the connecting plate is located above the supporting frame.

[0013] As a further solution of the present invention: a cooling channel is opened inside the support frame, the support frame is connected with a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are both connected with an in-vehicle cooling circulation component.

[0014] As a further solution of the present invention: a flexible layer is provided on the bottom of the buffer plate and the inner wall of the supporting frame.

[0015] Beneficial effects of the present invention: 1. In the present invention, the bottom support plate, the carrier frame with the power battery pack installed and the bottom plate form an integral frame, the bottom support plate is fixed on the vehicle frame, and the connection between the carrier frame and the bottom support plate serves as the main frame for supporting the power battery pack. The first locking frame and the second locking frame on the bottom support plate are expanded and retracted, so that the carrier frame can be disassembled and installed conveniently and quickly. The connection between the bottom plate and the bottom of the vehicle can also provide additional support for the carrier frame, ensuring the stability of the installation structure. The secondary buffer component built into the bottom support plate can buffer the power battery pack after installation, and can assist in the disassembly of the carrier frame during disassembly. 2. In the present invention, when the carrier is installed, the power battery pack abuts against the buffer plate due to its upward movement, thereby pushing the buffer plate to move upward, and the buffer plate transmits force to the slider through the buffer bracket assembly, so that the slider slides in the slide groove and compresses the spring. When the spring is compressed to a certain state, that is, reaches a pre-compression state, the carrier is also installed. When the vehicle encounters bumps during driving, the spring can buffer the power battery pack, thereby protecting the power battery pack; when the carrier is disassembled, the elastic reaction of the spring acts on the buffer plate through the buffer bracket assembly, which will always generate a downward thrust on the buffer plate, which can help separate the carrier from the bottom support plate, without the need to manually use tools to dig the carrier out of the bottom support plate; 3. In the present invention, after the bottom plate is installed on the bottom of the vehicle by passing the screws through the first reserved holes, screws are selected to pass through the second reserved holes and screwed into the threaded holes, so that the bottom plate is fixedly installed on the wedge block, and the bottom plate is fixedly installed on the bottom of the vehicle, thereby providing a more stable support for the load-bearing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of a cross-section of the bottom support plate in the present invention; Figure 3 The present invention Figure 2 Schematic diagram of the structure viewed from above; Figure 4 It is a schematic diagram of the structure of the wedge block in the present invention; Figure 5 It is a schematic diagram of the structure of the wedge-shaped groove in the present invention; Figure 6 It is a structural schematic diagram of the secondary buffer component in the present invention; Figure 7 It is a structural schematic diagram of the bottom plate of the present invention.

[0018] In the figure: 1. bottom support plate; 2. load-bearing frame; 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; 6. wedge block; 601. bevel; 602. threaded hole; 7. first locking frame; 8. second locking frame; 9. linkage rod; 10. bidirectional screw rod; 11. guide block; 1101. fillet; 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. slide groove; 1801. spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7 As shown, the present invention is a base for battery replacement of new energy vehicles, comprising: A bottom support plate 1 is fixedly mounted on the vehicle frame, and is provided with a driving assembly and a secondary buffer assembly 14 therein, two first locking frames 7 are slidably mounted in the bottom support plate 1, and the two first locking frames 7 are driven by the driving assembly to move toward each other, and each first locking frame 7 is correspondingly provided with two second locking frames 8, and the two second locking frames 8 are symmetrically arranged about the first locking frames 7 and are driven by the driving assembly to move toward each other, and the second locking frames 8 are slidably mounted in the bottom support plate 1, and a wedge block 6 is fixedly mounted on the bottom end of each first locking frame 7 and the second locking frame 8, respectively, and each wedge block 6 is provided with a bevel 601, and 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, which 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 opened 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. The oblique angle 501 is slidably matched with the hypotenuse 601; and The bottom plate 3 is provided with a plurality of first reserved holes 301 around it, and a screw is inserted into each first reserved hole 301 . The bottom plate 3 is fixedly connected to the bottom of the vehicle through the screws, and is fitted with the bottom of the carrier frame 2 .

[0021] In actual application of this embodiment, when the power battery pack 4 needs to be replaced, first, use a car lift to raise the car to a suitable height, then remove the bottom plate 3 from the bottom of the car, and the carrier frame 2 installed in the bottom support plate 1 is exposed. Secondly, use the platform of the lifting machine to approach the bottom of the carrier frame 2, and reserve a certain space to prevent the lifting machine platform from abutting against the bottom of the carrier frame 2 and applying excessive pressure to the bottom of the carrier frame 2, causing the connection structure between the bottom support plate 1 and the frame and the bottom support plate 1 and the carrier frame 2 to be damaged. The manual control drive assembly drives each first locking frame 7 and the second locking frame 8 to expand outward until the wedge blocks 6 at the bottom of the first locking frame 7 and the second locking frame 8 are all moved out of the wedge groove 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, and then the worker can remove the power battery pack 4 installed in the carrier frame 2 and replace or repair it. During installation, the carrier frame 2 equipped with the new power battery pack 4 is raised through the lifting machine platform. When the wedge groove 5 is aligned with the wedge block 6, the lifting machine platform is stopped and the driving assembly is manually controlled to drive each first locking frame 7 and the second locking frame 8 to retract. At this time, the bevel 601 on the wedge block 6 will abut against the bevel 501 in the wedge groove 5, and as the first locking frame 7 and the second locking frame 8 are retracted, the wedge block 6 will gradually penetrate into the wedge groove 5, and the bevel 501 will slide on the bevel 601, so that the carrier frame 2 gradually rises. During this process, the contact area between the bevel 501 and the bevel 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 groove 5 is completely inserted into the wedge block 6, the bevel 501 and the bevel 601 are completely in contact and the secondary buffer assembly 14 reaches a pre-compression state, and finally the bottom plate 3 is reinstalled on the bottom of the vehicle, that is, the replacement operation of the entire power battery pack 4 is completed; 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. 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.

[0022] 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.

[0023] In practical application, this embodiment is based on Figure 2 Taking the direction shown as an example, the two-way screw rod 10 is manually rotated clockwise. Due to the threaded connection between the two-way screw rod 10 and the first locking frame 7, the two first locking frames 7 will move to the middle of the bottom support plate 1 at the same time, and at the same time, the two second locking frames 8 are pulled close to the first locking frame 7 through the linkage rod 9, that is, the second locking frame 8 also moves toward the middle of the bottom support plate 1, thereby realizing the state of synchronous inward retraction of the first locking frame 7 and the second locking frame 8, which is used to install the supporting frame 2 on the bottom support plate 1; anyway, the two-way screw rod 10 is manually rotated counterclockwise, and the two first locking frames 7 move toward the outside of the bottom support plate 1, and the two second locking frames 8 are pushed away from the first locking frame 7 through the linkage rod 9, that is, the second locking frame 8 moves toward the outside of the bottom support plate 1 synchronously, thereby realizing the state of synchronous outward expansion of the first locking frame 7 and the second locking frame 8, which is used to remove the supporting frame 2 from the bottom support plate 1. The structure realizes synchronous control of the first locking frame 7 and the second locking frame 8, so that the supporting frame 2 can be evenly stressed, and the installation and disassembly process of the supporting frame 2 can be more stably controlled.

[0024] like Figure 4 As shown, as a preferred embodiment of the present invention, the number of the secondary buffer components 14 is not less than three groups, and the multiple groups of secondary buffer components 14 are distributed equidistantly in the transverse direction.

[0025] In actual application, this embodiment can provide a more uniform buffering effect and rebound force for the power battery pack 4 by equidistantly arranging multiple groups of secondary buffer components 14, which is more conducive to the installation and removal of the power battery pack 4.

[0026] like Figure 2-Figure 4As shown, as a preferred embodiment of the present invention, the secondary buffer assembly 14 includes a buffer plate 12, a slider 17, a slide groove 18, a spring 1801 and a buffer bracket assembly, two of the slide grooves 18 are opened 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 through a spring 1801, the slider 17 is slidably installed in the slide groove 18, and it is connected to the buffer plate 12 through the buffer bracket assembly, and the buffer plate 12 is located above the power battery pack 4.

[0027] In actual application of this embodiment, when the carrier 2 is installed, its upward movement will cause the power battery pack 4 to abut against the buffer plate 12, thereby pushing the buffer plate 12 to move upward, and the buffer plate 12 transmits force to the slider 17 through the buffer bracket assembly, so that the slider 17 slides in the slide groove 18 and compresses the spring 1801. When the spring 1801 is compressed to a certain state, that is, it reaches a pre-stressed state, the carrier 2 is also installed. Then, when the vehicle encounters bumps during driving, the spring 1801 can buffer the power battery pack 4, thereby protecting the power battery pack 4; when disassembling the carrier 2, the elastic reaction of the spring 1801 acts on the buffer plate 12 through the buffer bracket assembly, which will always generate a downward thrust on the buffer plate 12, which can help separate the carrier 2 from the bottom support plate 1, and there is no need to manually use tools to pick the carrier 2 out of the bottom support plate 1.

[0028] like Figure 6 As shown, as a preferred embodiment of the present invention, the buffer bracket 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 end of the first connecting rod 15 and the second connecting rod 16 is rotatably connected to the buffer plate 12, and the other ends of the two are respectively rotatably connected to two sliders 17, and the distance between the rotation connection between the first connecting rod 15 and the buffer plate 12 and the rotation connection between the second connecting rod 16 and the buffer plate 12 is constant.

[0029] In actual application of this embodiment, whether when installing the carrier frame 2 or when the vehicle is bumpy, when the buffer plate 12 is abutted by the power battery pack 4 and moves upward, one end of the first connecting rod 15 and the second connecting rod 16 rotates on the buffer plate 12, and the round rod 1501 slides 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, thereby achieving a multi-stage buffering effect. Under this structure, the rotational connection position of the first connecting rod 15 and the second connecting rod 16 and the buffer plate 12 remains unchanged, thereby avoiding the problem of changes in the buffering effect caused by changes in the force point of the buffer plate 12.

[0030] like Figure 6 As 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 support frame 2, the guide blocks 11 slide with the buffer plate 12, and the bottom end of the guide block 11 is provided with a rounded corner 1101.

[0031] In actual application of this embodiment, a rough installation area can be formed at the bottom of the bottom support plate 1 through the guide block 11. When installing the carrier frame 2, the carrier frame 2 is aligned with the installation area surrounded by the guide block 11, and then the carrier frame 2 is inserted to achieve quick installation. At this time, the guide block 11 plays a role of auxiliary installation, and the rounded corner 1101 can prevent the edge of the carrier frame 2 from directly hitting the guide block 11, and the buffer plate 12 slides on the guide block 11, which can ensure that the buffer plate 12 is always in a horizontal position.

[0032] like Figure 3 As 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 having the same aperture as the threaded hole 602 are provided on the bottom plate 3 .

[0033] In actual application of this embodiment, after the bottom plate 3 is installed on the bottom of the vehicle by screwing through the first reserved hole 301, screws are selected to pass through the second reserved hole 302 and screwed into the threaded hole 602, so that the bottom plate 3 is fixedly installed on the wedge block 6, and the bottom plate 3 is fixedly installed on the bottom of the vehicle, thereby providing a more stable support for the carrier 2.

[0034] like Figure 3-Figure 5 As 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 carrier frame 2 .

[0035] In actual application of this embodiment, when the power battery pack 4 needs to be taken out from the carrier 2 , the connecting plate 401 around the power battery pack 4 can be manually pulled up, so as to facilitate taking out the power battery pack 4 .

[0036] like Figure 3-Figure 5 As shown, as a preferred embodiment of the present invention, a cooling channel 201 is opened inside the carrier 2, and the carrier 2 is connected to a water inlet pipe 202 and a water outlet pipe 203, and the water inlet pipe 202 and the water outlet pipe 203 are both connected to the in-vehicle cooling circulation component.

[0037] 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 does not improve them. Therefore, there is no need to disclose their specific mechanical structure and circuit structure, which does not affect the integrity of the present invention.

[0038] In actual application of this embodiment, when the vehicle is running, the power battery pack 4 will generate heat, and the coolant will be injected into the cooling channel 201 through the water inlet pipe 202 through the in-vehicle cooling circulation component, and then flow out from the water outlet pipe 203. The coolant in the cooling channel 201 will take away the heat generated by the power battery pack 4, thereby achieving the purpose of heat dissipation for the power battery pack 4.

[0039] like Figure 3-Figure 6 As shown, as a preferred embodiment of the present invention, a flexible layer 13 is provided on the bottom of the buffer plate 12 and the inner wall of the supporting frame 2 .

[0040] In actual application of this embodiment, the flexible layer 13 may be a silicone pad or a rubber pad, which is not specifically limited in this embodiment; 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.

[0041] Working principle of the present invention: The above-mentioned embodiment of the present invention provides a base support for battery replacement of new energy vehicles. When the power battery pack 4 needs to be replaced, first, use a car lift to raise the car to a suitable height, and then remove the bottom plate 3 from under the car. At this time, the carrier frame 2 installed in the base support plate 1 is exposed. Secondly, use the platform of the lifting machine to approach the bottom of the carrier frame 2, and manually control the driving assembly to drive each first locking frame 7 and the second locking frame 8 to expand outward until the wedge blocks 6 at the bottom of the first locking frame 7 and the second locking frame 8 are all moved out of the wedge groove 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 base support plate 1 is completed. At this time, the carrier frame 2 is located on the platform of the lifting machine, and then the worker can remove the power battery pack 4 installed in the carrier frame 2 and replace or repair it; during installation, the carrier frame 2 equipped with the new power battery pack 4 is placed through the support The lifting platform rises. When the wedge groove 5 is aligned with the wedge block 6, the lifting platform stops rising and the manual control driving assembly drives each first locking frame 7 and the second locking frame 8 to retract. At this time, the bevel 601 on the wedge block 6 will abut against the bevel 501 in the wedge groove 5, and as the first locking frame 7 and the second locking frame 8 are retracted, the wedge block 6 will gradually penetrate into the wedge groove 5, and the bevel 501 will slide on the bevel 601, so that the carrier 2 gradually rises. During this process, the contact area between the bevel 501 and the bevel 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 groove 5 is fully inserted into the wedge block 6, the bevel 501 and the bevel 601 are fully in contact and the secondary buffer assembly 14 reaches a pre-stressed state, and finally the bottom plate 3 is reinstalled on the bottom of the vehicle, that is, the replacement operation of the entire power battery pack 4 is completed.

[0042] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage 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 The bottom plate (3) is provided with a plurality of first reserved holes (301) on its periphery, and 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 fitted with the bottom of the support frame (2).

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 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, and each slide groove (18) is connected to a slider (17) via a spring (1801), and 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).

5. The base for battery replacement of new energy vehicles according to claim 4 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.

6. The base for battery replacement of new energy vehicles according to claim 4 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).

7. 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).

8. 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).

9. 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.

10. The base for battery replacement of new energy vehicles according to claim 1, characterized in that: The bottom of the buffer plate (12) and the inner wall of the supporting frame (2) are both provided with a flexible layer (13).

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