A battery pack forward anti-collision extension bracket for an electric vehicle front bumper

Abstract

This invention relates to the field of new energy vehicle safety, and mainly discloses a forward anti-collision extension bracket for a battery pack in the front bumper of an electric vehicle. It includes a vehicle chassis bracket, an extension bracket on the side of the positioning frame, an anti-collision bracket on the side of the mounting base, a pre-set inducing crumple groove on the surface of the anti-collision bracket, and a protective plate at the bottom of the buffer plate. The invention utilizes an inverted triangular arrangement of the anti-collision bracket to form a stable mechanical triangle, effectively dispersing impact force. Furthermore, the pre-set inducing crumple groove has an hourglass-shaped cross-section, allowing for controlled and efficient absorption of collision energy during high-speed collisions. Additionally, the inclined angle of the protective plate, in conjunction with the extension bracket, facilitates the passage of debris from a frontal impact under the anti-collision bracket, allowing it to directly impact the front corner or bottom of the battery pack. Moreover, the extension bracket is installed on top of the existing anti-collision bracket, eliminating the need for additional installation equipment on the vehicle's underside.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle safety, and more specifically, to a forward anti-collision extension bracket for a battery pack in the front bumper of an electric vehicle. Background Technology

[0002] With the explosive growth of the new energy vehicle industry, the safety of power battery systems has become a primary concern for consumers. Unlike traditional gasoline vehicles, the power battery packs of pure electric vehicles are usually installed in a "flat" layout under the chassis. In order to maximize interior space and driving range, the front end of the battery pack often extends to the front axle, in the most prominent low area at the front of the vehicle.

[0003] Existing front bumper protection structures for electric vehicles, when addressing battery pack protection, primarily follow the design of traditional gasoline-powered vehicles, with their installation height typically located in front of the radiator in the engine compartment, a relatively high position. However, the front of the battery pack in electric vehicles is positioned lower and further forward. In the event of a 25% small overlap collision or encountering road obstructions (such as stones or damaged sections of speed bumps), the impact object can easily pass under the bumper beam, directly impacting the front corner or bottom of the battery pack. The lack of effective physical connection and coverage between the existing front bumper structure and the battery pack results in the battery pack being directly exposed to high-risk impact areas. Some existing technologies attempt to improve crashworthiness by significantly increasing the thickness of the aluminum plate in the battery pack casing or using high-strength steel, but this significantly increases the overall vehicle weight, reduces the driving range, violates the lightweight design principles of new energy vehicles, and is difficult to widely adopt in mass-produced models.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a forward anti-collision extension bracket for a battery pack in the front bumper of an electric vehicle, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A forward collision avoidance extension bracket for a battery pack in the front bumper of an electric vehicle includes a vehicle chassis bracket, a battery pack disposed on the surface of the vehicle chassis bracket, a placement groove formed on the side of the vehicle chassis bracket, a mounting block disposed on the side of the placement groove, a positioning frame mounted on the surface of the mounting block, an extension frame disposed on the side of the positioning frame, a support plate disposed on the side of the extension frame, a positioning screw disposed on the surface of the support plate, and an arc-shaped protrusion in the middle of the extension frame.

[0008] The positioning screw is fitted with a mounting base, the mounting base is provided with a collision protection frame on its side, the collision protection frame is provided with a preset inducing collapse groove on its surface, the collision protection frame is provided with an auxiliary frame on its inner side, and the collision protection frame is arranged in an inverted triangle shape.

[0009] The bottom of the vehicle chassis bracket is provided with a mounting base plate, the bottom of the mounting base plate is provided with a buffer plate, and the bottom of the buffer plate is provided with a protective plate.

[0010] Furthermore, a threaded groove is provided on the side of the placement slot, and a mounting screw is screwed into the threaded groove. A guide rod is provided on the end face of the mounting screw.

[0011] Furthermore, a first buffer spring is sleeved on the surface of the guide rod, one end of the first buffer spring is fixedly connected to the end face of the mounting block, and the other end of the first buffer spring is fixedly connected to the end face of the mounting screw.

[0012] Furthermore, the mounting block is sleeved on the guide rod, the mounting block is slidably connected to the guide rod, a limit block is provided on the end face of the guide rod, the positioning frame is fixedly connected to the mounting block, two sets of positioning frames are provided, the two sets of positioning frames are symmetrically distributed about the car chassis bracket, a positioning plate is provided on the end face of the mounting block, and the positioning plate is fixedly connected to the side of the placement groove.

[0013] Furthermore, a second buffer spring is provided on the end face of the vehicle chassis bracket. One end of the second buffer spring is fixedly connected to the end face of the vehicle chassis bracket, and the other end of the second buffer spring is fixedly connected to a mounting base. Two sets of the second buffer spring are provided, and the two sets of the second buffer spring are symmetrically distributed about the center line of the long side of the end face of the vehicle chassis bracket. The mounting base is fixedly connected to the inner side of the extension frame.

[0014] Furthermore, the extension frame has a hollow internal structure and is equipped with reinforcing ribs. Several sets of reinforcing ribs are provided inside the extension frame, and the support plate is fixedly connected to the side of the extension frame.

[0015] Furthermore, an auxiliary plate is provided at the bottom of the support plate, and a hole is opened on the side of the auxiliary plate. A rotating rod is provided in the hole, and the rotating rod is rotatably connected to the auxiliary plate.

[0016] Furthermore, one side of the protective plate is fixedly connected to the end face of the rotating rod, a rubber pad is provided at the bottom of the protective plate, and the protective plate is arranged at a 30° angle to the bottom of the car chassis bracket.

[0017] Furthermore, the mounting base plate is fixedly connected to the bottom of the vehicle chassis bracket, the upper end of the buffer plate is fixedly connected to the bottom of the mounting base plate, the lower end of the buffer plate is fixedly connected to the surface of the protective plate, and the length of the long side of the buffer plate is less than the length of the long side of the mounting base plate.

[0018] Furthermore, the outer side of the anti-collision frame is provided with a reinforcing plate, one end of which is fixedly connected to the surface of the positioning frame. There are two sets of reinforcing plates, which are symmetrically distributed about the anti-collision frame. The surface of the positioning frame is provided with a baffle, and there are two sets of baffles, which are respectively fixedly connected to the surfaces of the two positioning frames. The auxiliary frame is fixedly connected to the inner side of the anti-collision frame. There are multiple sets of preset induced collapse grooves, all of which are formed on the surface of the anti-collision frame. The end face of the anti-collision frame is provided with a connecting plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The structure of the present invention is arranged in an inverted triangle shape by the overall anti-collision frame, forming a stable mechanical triangle that effectively disperses the impact force. In addition, the pre-set induced crumple groove opened on the surface of the anti-collision frame, the cross-section of the pre-set induced crumple groove is an hourglass-shaped groove, which can cause controllable and progressive folding deformation during high-speed collision, efficiently absorbing the collision energy. In addition, the inclined setting of the protective plate and its cooperation with the extension frame make it easy for the debris generated by the front impact of the vehicle to pass under the anti-collision frame and directly impact the front corner or bottom surface of the battery pack. The hollow setting of the extension frame, in conjunction with the reinforcing ribs, not only reduces the overall weight of the extension frame, but also increases the overall impact resistance of the hollow extension frame. In addition, the extension frame is installed on the basis of the connection of the anti-collision frame, so there is no need to set up the installation equipment under the vehicle. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a forward anti-collision extension bracket for a battery pack in an electric vehicle front bumper according to an embodiment of the present invention.

[0022] Figure 2 This is a side view of an integral device in a forward anti-collision extension bracket for a battery pack in an electric vehicle according to an embodiment of the present invention;

[0023] Figure 3 yes Figure 2 Enlarged structural diagram at point A in the diagram;

[0024] Figure 4 yes Figure 2 Enlarged structural diagram at point B in the diagram;

[0025] Figure 5 This is a schematic diagram of the anti-collision frame and extension frame structure in a battery pack forward anti-collision extension bracket for an electric vehicle according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the anti-collision frame and the extension frame in the forward anti-collision extension bracket of the battery pack for the front bumper of an electric vehicle according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the vehicle chassis bracket and battery pack structure in a forward anti-collision extension bracket for a battery pack in an electric vehicle according to an embodiment of the present invention.

[0028] Figure 8 This is a partial cross-sectional view of the extension frame in a forward anti-collision extension bracket for a battery pack in an electric vehicle according to an embodiment of the present invention.

[0029] Figure 9 yes Figure 8 Enlarged structural diagram at point C;

[0030] Figure 10 This is a schematic diagram of the structure of a battery pack forward anti-collision extension bracket for an electric vehicle according to an embodiment of the present invention after the extension frame is removed.

[0031] Figure 11 yes Figure 10 A magnified structural diagram at point D in the diagram.

[0032] Figure label:

[0033] 1. Car chassis bracket; 2. Battery pack; 3. Placement slot; 4. Mounting block; 5. Positioning frame; 6. Extension frame; 7. Support plate; 8. Positioning screw; 9. Mounting seat; 10. Anti-collision frame; 11. Pre-set induction crumple groove; 12. Auxiliary frame; 13. Mounting base plate; 14. Buffer plate; 15. Protective plate; 16. Threaded groove; 17. Mounting screw; 18. Guide rod; 19. First buffer spring; 20. Limiting block; 21. Second buffer spring; 22. Mounting base; 23. Reinforcing rib; 24. Auxiliary plate; 25. Rotating rod; 26. Rubber pad; 27. Reinforcing plate; 28. Baffle; 29. ​​Positioning clamping plate; 30. Connecting plate. Detailed Implementation

[0034] The invention will now be further described with reference to the accompanying drawings and specific embodiments:

[0035] Example 1

[0036] Please see Figure 1-11 According to an embodiment of the present invention, a forward anti-collision extension bracket for a battery pack in the front bumper of an electric vehicle includes a vehicle chassis bracket 1, a battery pack 2 disposed on the surface of the vehicle chassis bracket 1, a placement groove 3 provided on the side of the vehicle chassis bracket 1, a mounting block 4 disposed on the side of the placement groove 3, the mounting block 4 being generally square plate-shaped, a positioning frame 5 mounted on the surface of the mounting block 4, the positioning frame 5 being fixedly connected to the surface of the mounting block 4 by multiple sets of bolts, an extension frame 6 disposed on the side of the positioning frame 5, a support plate 7 disposed on the side of the extension frame 6, a positioning screw 8 disposed on the surface of the support plate 7, and an arc-shaped protrusion in the middle of the extension frame 6. The arc-shaped protrusion in the middle of the extension frame 6 facilitates a buffering effect in the event of a subsequent impact, and also facilitates the dispersion of the impact force to both sides of the extension frame 6.

[0037] The positioning screw 8 is fitted with a mounting base 9. After the mounting base 9 is fitted onto the positioning screw 8, the mounting base 9 is fixed by screwing a nut onto the positioning screw 8. The mounting base 9 is provided with a crash barrier 10 on its side. The surface of the crash barrier 10 is provided with a preset inducing collapse groove 11. The cross-section of the preset inducing collapse groove 11 is hourglass-shaped. The hourglass-shaped collapse groove is not a simple material thinning. It ensures that the support undergoes progressive and predictable folding under a specific impact threshold, rather than random breakage or rigid transmission, thereby dissipating the collision kinetic energy in the most stable and efficient way and protecting the battery pack 2 behind it to the greatest extent. The inner side of the crash barrier 10 is provided with an auxiliary frame 12. The crash barrier 10 is arranged in an inverted triangle to form a stable mechanical triangle and effectively disperse the impact force, as shown in Table 1 below.

[0038] Table 1 (Comparison Test between this Design and Existing Crane Barriers)

[0039]

[0040] The bottom of the vehicle chassis bracket 1 is provided with a mounting base plate 13, the bottom of the mounting base plate 13 is provided with a buffer plate 14, and the bottom of the buffer plate 14 is provided with a protective plate 15. Through the cooperation of the buffer plate 14 and the protective plate 15, the protective plate 15 is tilted at an overall angle, which facilitates the protection against the flying debris from the vehicle impact and prevents the debris from directly hitting the surface of the battery pack 2.

[0041] Example 2

[0042] Please see Figures 1-5As shown, a threaded groove 16 is provided on the side of the placement slot 3, and an installation screw 17 is screwed into the threaded groove 16. The threaded groove 16 facilitates the subsequent installation and removal of the installation screw 17. A guide rod 18 is provided on the end face of the installation screw 17, and a first buffer spring 19 is sleeved on the surface of the guide rod 18. One end of the first buffer spring 19 is fixedly connected to the end face of the mounting block 4, and the other end of the first buffer spring 19 is fixedly connected to the end face of the installation screw 17. The mounting block 4 and the guide rod 18 can slide. When the vehicle is impacted, the mounting block 4 loses its limit, and the impact force on the mounting block 4 can be reduced by the elastic force of the first buffer spring 19, which helps to reduce the impact force generated by the impact and improve the protection effect of the battery pack 2.

[0043] The mounting block 4 is sleeved on the guide rod 18, and the mounting block 4 is slidably connected to the guide rod 18. A limit block 20 is provided on the end face of the guide rod 18 to prevent the mounting block 4 from detaching from the guide rod 18. The positioning frame 5 is fixedly connected to the mounting block 4. There are two sets of positioning frames 5, which are symmetrically distributed about the car chassis bracket 1. A positioning plate 29 is provided on the end face of the mounting block 4. The positioning plate 29 is fixedly connected to the side of the placement groove 3 by bolts. When the vehicle is subjected to a distance impact, the positioning plate 29 will break, which facilitates the subsequent buffer protection of the mounting block 4 by the first buffer spring 19.

[0044] The end face of the vehicle chassis bracket 1 is provided with a second buffer spring 21, which facilitates the improvement of the buffering effect on the inner side of the extension frame 6. One end of the second buffer spring 21 is fixedly connected to the end face of the vehicle chassis bracket 1, and the other end of the second buffer spring 21 is fixedly connected to a mounting base 22. There are two sets of the second buffer spring 21, which are symmetrically distributed about the center line of the long side of the end face of the vehicle chassis bracket 1. The mounting base 22 is fixedly connected to the inner side of the extension frame 6 by bolts.

[0045] Example 3

[0046] Please see Figure 8 and Figure 9 As shown, the extension frame 6 has a hollow internal structure, which facilitates the reduction of the overall weight of the extension frame 6 and thus the overall weight of the vehicle. The extension frame 6 is provided with reinforcing ribs 23, and several sets of reinforcing ribs 23 are provided. All sets of reinforcing ribs 23 are fixedly connected to the inside of the extension frame 6. The extension frame 6 has multiple sets of reinforcing ribs 23 inside, which facilitates the improvement of the overall impact resistance of the extension frame 6. As shown in Table 2 below, the support plate 7 is fixedly connected to the side of the extension frame 6.

[0047] Table 2 (Comparison Test between this Design and Existing Extension Frames)

[0048]

[0049] As shown in Table 3 below, an auxiliary plate 24 is provided at the bottom of the support plate 7. The auxiliary plate 24 has a hole on its side, and a rotating rod 25 is provided in the hole. The rotating rod 25 is rotatably connected to the auxiliary plate 24, which facilitates the rotation of the subsequent protective plate 15. One side of the protective plate 15 is fixedly connected to the end face of the rotating rod 25. A rubber pad 26 is provided at the bottom of the protective plate 15. The rubber pad 26 helps to reduce the damage caused by flying gravel to the surface of the protective plate 15, and also reduces the noise problem caused by the contact between the gravel and the protective plate 15. The protective plate 15 is arranged at 30° with the bottom of the car chassis bracket 1, which facilitates the displacement and guidance of flying gravel, etc., so that the gravel, etc., can fly in other directions, thereby improving the protection effect of the battery pack 2.

[0050] Table 3 (Comparison Test between this Design and Existing Structures)

[0051]

[0052] The mounting base plate 13 is fixedly connected to the bottom of the vehicle chassis bracket 1. The upper end of the buffer plate 14 is fixedly connected to the bottom of the mounting base plate 13, and the lower end of the buffer plate 14 is fixedly connected to the surface of the protective plate 15. The buffer plate 14 has an overall arc-shaped plate structure. The buffer plate 14 can be compressed and reset. The length of the long side of the buffer plate 14 is shorter than the length of the long side of the mounting base plate 13. The buffer plate 14 also helps to reduce the hard contact between the protective plate 15 and the flying gravel.

[0053] Please see Figures 5-9As shown, the outer side of the anti-collision frame 10 is provided with a reinforcing plate 27. One end of the reinforcing plate 27 is fixedly connected to the surface of the positioning frame 5. Two sets of reinforcing plates 27 are provided, and the two sets of reinforcing plates 27 are symmetrically distributed about the anti-collision frame 10. The two sets of reinforcing plates 27 facilitate the increase of the overall stability of the anti-collision frame 10. The reinforcing plates 27 are fixedly connected to the surface of the positioning frame 5 with bolts. The surface of the positioning frame 5 is provided with a baffle 28. Two sets of baffles 28 are provided, and the two sets of baffles 28 are respectively fixedly connected to the surfaces of the two positioning frames 5 with limiting bolts. The two sets of baffles 28 facilitate the covering of the end face of the battery pack 2. The baffles 28 are generally square plate structures. The shielding formed by the two sets of baffles 28 facilitates the protection of the front end of the battery pack 2 and avoids point-to-surface contact between subsequent impacts and the surface of the battery pack 2. To facilitate the dispersion of impact force and ensure that the impact force is evenly applied to the end face of the battery pack 2, thereby improving the protection of the battery pack 2, the auxiliary frame 12 is fixedly connected to the inner side of the anti-collision frame 10, which facilitates the improvement of the overall stability of the anti-collision frame 10. Multiple sets of preset induced crumple grooves 11 are provided, and all sets of preset induced crumple grooves 11 are opened on the surface of the anti-collision frame 10. The end face of the anti-collision frame 10 is provided with a connecting plate 30, which is connected to the inside of the vehicle through the connecting plate 30 and the positioning bolt. The preset induced crumple groove 11 has an hourglass-shaped groove in cross section, which can undergo controllable and progressive folding deformation during high-speed collisions, efficiently absorbing collision energy. The extension frame 6 is connected to the anti-collision frame 10 through existing installation points and structures, without occupying valuable front compartment space or adding complex independent supports. The assembly process is good and it is very suitable for mass production and promotion.

[0054] Through the above-described solution of the present invention, the anti-collision frame 10 is arranged in an inverted triangle to form a stable mechanical triangle, effectively dispersing the impact force. In addition, the pre-set induced crumple groove 11 opened on the surface of the anti-collision frame 10, the pre-set induced crumple groove 11 has an hourglass-shaped groove in cross section, which can undergo controllable and progressive folding deformation during high-speed collision, efficiently absorbing collision energy. In addition, the inclined setting of the protective plate 15 and its cooperation with the extension frame 6 facilitate the passage of debris generated by the frontal impact of the vehicle through the underside of the anti-collision frame 10 to directly impact the front corner or bottom surface of the battery pack 2. The hollow setting of the extension frame 6, in conjunction with the reinforcing rib 23, not only reduces the overall weight of the extension frame 6, but also increases the overall impact resistance of the hollow extension frame 6. Furthermore, the installation of the extension frame 6 is based on the connection of the anti-collision frame 10, so there is no need to set up the installation equipment at the bottom of the vehicle.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forward collision avoidance extension bracket for a battery pack in the front bumper of an electric vehicle, comprising a vehicle chassis bracket (1), wherein a battery pack (2) is disposed on the surface of the vehicle chassis bracket (1), characterized in that, The car chassis bracket (1) has a placement groove (3) on its side, a mounting block (4) is provided on the side of the placement groove (3), a positioning frame (5) is installed on the surface of the mounting block (4), an extension frame (6) is provided on the side of the positioning frame (5), a support plate (7) is provided on the side of the extension frame (6), a positioning screw (8) is provided on the surface of the support plate (7), and the middle part of the extension frame (6) is an arc-shaped protrusion; The positioning screw (8) is fitted with a mounting base (9), and the mounting base (9) is provided with a crash shield (10) on its side. The crash shield (10) is provided with a pre-set induction collapse groove (11) on its surface. The crash shield (10) is provided with an auxiliary frame (12) on its inner side. The crash shield (10) is arranged in an inverted triangle. The bottom of the vehicle chassis bracket (1) is provided with a mounting base plate (13), the bottom of the mounting base plate (13) is provided with a buffer plate (14), and the bottom of the buffer plate (14) is provided with a protective plate (15). The placement groove (3) has a threaded groove (16) on its side, and a mounting screw (17) is screwed into the threaded groove (16). A guide rod (18) is provided on the end face of the mounting screw (17). The guide rod (18) is fitted with a first buffer spring (19), one end of the first buffer spring (19) is fixedly connected to the end face of the mounting block (4), and the other end of the first buffer spring (19) is fixedly connected to the end face of the mounting screw (17). The mounting block (4) is sleeved on the guide rod (18), and the mounting block (4) and the guide rod (18) are slidably connected. The end face of the guide rod (18) is provided with a limit block (20). The positioning frame (5) is fixedly connected to the mounting block (4). There are two sets of positioning frames (5), and the two sets of positioning frames (5) are symmetrically distributed about the car chassis bracket (1). The end face of the mounting block (4) is provided with a positioning plate (29), and the positioning plate (29) is fixedly connected to the side of the placement groove (3).

2. The forward anti-collision extension bracket for a battery pack in an electric vehicle front bumper according to claim 1, characterized in that, The end face of the car chassis bracket (1) is provided with a second buffer spring (21). One end of the second buffer spring (21) is fixedly connected to the end face of the car chassis bracket (1), and the other end of the second buffer spring (21) is fixedly connected to a mounting base (22). There are two sets of the second buffer spring (21), and the two sets of the second buffer spring (21) are symmetrically distributed about the center line of the long side of the end face of the car chassis bracket (1). The mounting base (22) is fixedly connected to the inner side of the extension frame (6).

3. The forward anti-collision extension bracket for a battery pack in the front bumper of an electric vehicle according to claim 1, characterized in that, The extension frame (6) has a hollow structure inside. The extension frame (6) is provided with reinforcing ribs (23). Several sets of reinforcing ribs (23) are provided. Several sets of reinforcing ribs (23) are fixedly connected inside the extension frame (6). The support plate (7) is fixedly connected to the side of the extension frame (6).

4. A forward anti-collision extension bracket for a battery pack in an electric vehicle front bumper according to claim 3, characterized in that, The support plate (7) has an auxiliary plate (24) at its bottom. The auxiliary plate (24) has a hole on its side and a rotating rod (25) is installed in the hole. The rotating rod (25) is rotatably connected to the auxiliary plate (24).

5. A forward anti-collision extension bracket for a battery pack in an electric vehicle front bumper according to claim 1, characterized in that, One side of the protective plate (15) is fixedly connected to the end face of the rotating rod (25). A rubber pad (26) is provided at the bottom of the protective plate (15). The protective plate (15) is arranged at 30° with the bottom of the car chassis bracket (1).

6. A forward anti-collision extension bracket for a battery pack in an electric vehicle front bumper according to claim 1, characterized in that, The mounting base plate (13) is fixedly connected to the bottom of the car chassis bracket (1), the upper end of the buffer plate (14) is fixedly connected to the bottom of the mounting base plate (13), the lower end of the buffer plate (14) is fixedly connected to the surface of the protective plate (15), and the length of the long side of the buffer plate (14) is less than the length of the long side of the mounting base plate (13).

7. A forward anti-collision extension bracket for a battery pack in the front bumper of an electric vehicle according to claim 1, characterized in that, The outer side of the anti-collision frame (10) is provided with a reinforcing plate (27). One end of the reinforcing plate (27) is fixedly connected to the surface of the positioning frame (5). There are two sets of reinforcing plates (27), which are symmetrically distributed about the anti-collision frame (10). The surface of the positioning frame (5) is provided with a baffle (28). There are two sets of baffles (28), which are fixedly connected to the surfaces of the two sets of positioning frames (5). The auxiliary frame (12) is fixedly connected to the inner side of the anti-collision frame (10). There are multiple sets of preset induction collapse grooves (11), which are all opened on the surface of the anti-collision frame (10). The end face of the anti-collision frame (10) is provided with a connecting plate (30).

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