Vehicle body rear collision protection structure and vehicle

Abstract

The invention provides a vehicle body rear collision protection structure and a vehicle. The vehicle body rear collision protection structure comprises a rear floor, a storage box, a high-voltage electric appliance module and an installation support. The storage box is arranged on the rear floor, and the high-voltage electric appliance module and the mounting bracket are arranged in the storage box. The mounting bracket comprises a main body part for fixing the high-voltage electric appliance module and a fixing part rotationally connected with the main body part, and the fixing part is fixed with the storage box. When the rear part of the vehicle body is subjected to external force, the main body part rotates relative to the fixed part and drives the high-voltage electric appliance module to turn upwards. The high-voltage electric appliance module and the mounting bracket are integrally arranged in the storage box, so that the Z-direction space occupation is effectively reduced, and the utilization rate of the vehicle storage space is improved. Meanwhile, by arranging the turnover mounting bracket, when the rear part of the vehicle body is subjected to external force, the main body part can rotate relative to the fixed part and drive the high-voltage electric appliance module to turn upwards, so that the high-voltage electric appliance module is effectively prevented from being damaged by collision and extrusion, the safety risk of high-voltage electric leakage is reduced, and the safety of the whole vehicle is guaranteed.

Description

Technical Field

[0001] This application relates to the field of vehicles, and more particularly to a rear-end collision protection structure and vehicle. Background Technology

[0002] As the automotive industry moves towards new energy vehicles, hybrid and range-extended electric vehicles have become important market trends due to their balance of fuel economy and range. These vehicles have complex engine compartment structures, integrating a large engine, intake system, exhaust system, as well as components such as a front motor, electric air conditioning compressor, PTC (positive temperature coefficient heater), and electrical distribution box. This results in insufficient space for the high-voltage electrical modules traditionally located in the engine compartment, necessitating a redesigned layout.

[0003] For vehicles with seating arrangements, interior space is often limited, and high-voltage electrical modules are highly sensitive to ambient temperature. Therefore, the rear storage compartment becomes a suitable location. In existing technologies, during a rear-end collision, components such as the rear bumper beam and rear sill can deform under pressure, potentially compressing the rear storage compartment and its internal high-voltage electrical modules. Due to the lack of effective protective structures, these modules are easily damaged, affecting vehicle functionality and potentially causing serious safety incidents such as high-voltage leakage, threatening the lives of occupants. Furthermore, traditional high-voltage electrical module placement and protective structures often struggle to balance safety and space utilization, failing to meet the dual requirements of high-voltage safety and practical space utilization in current vehicle models.

[0004] Therefore, it is necessary to provide an improved rear-end collision protection structure and vehicle to solve the above problems. Summary of the Invention

[0005] This application provides a rear-end collision protection structure and vehicle that occupies little space and has high collision safety.

[0006] This application provides a rear collision protection structure for a vehicle body, including: a rear floor, a storage box, a high-voltage electrical module, and a mounting bracket; the storage box is disposed on the rear floor, and the high-voltage electrical module and the mounting bracket are disposed inside the storage box; the mounting bracket includes a main body for fixing the high-voltage electrical module and a fixing part rotatably connected to the main body, the fixing part being fixed to the storage box, and when the rear of the vehicle body is subjected to an external force, the main body rotates relative to the fixing part and causes the high-voltage electrical module to flip upward.

[0007] Furthermore, the fixing part includes a front part and a rear part disposed on both sides of the main body part, and the front part and the rear part are rotatably connected to the main body part through a rotating shaft.

[0008] Furthermore, the storage box includes a box body and a flange located on the outer edge of the box body; the main body is fixed to the bottom of the box body, and the front and rear parts are fixed to the flange.

[0009] Furthermore, the box body is provided with a cavity, the bottom wall of the cavity is provided with an upwardly protruding support part and a snap-fit ​​part, the main body is provided on the support part, the snap-fit ​​part is provided on at least one side of the main body, and the main body is snapped with the snap-fit ​​part.

[0010] Furthermore, the flange includes a front flange located on the front side of the box body and a rear flange located on the rear side of the box body. The front part is screwed and fixed to the front flange, and the rear flange is provided with an upwardly protruding hook portion, which is engaged with the hook portion.

[0011] Furthermore, the front part includes a rotating part and a mounting part fixed together, the rotating part being rotatably connected to the main body part, and the rotating part folding with the main body part upon rear collision; the rear part includes a support part and a straight part and a flanged part fixed to both sides of the support part, the straight part being rotatably connected to the main body part, and the straight part folding with the main body part upon rear collision.

[0012] Furthermore, the high-voltage electrical module and the main body are horizontally arranged in the storage box, and in the event of a rear collision, the front side of the high-voltage electrical module and the main body is lower than the rear side of the high-voltage electrical module and the main body.

[0013] Furthermore, a muffler is provided below the storage box, and the muffler is connected to the rear floor. In the event of a rear collision, the muffler supports the storage box and the high-voltage electrical module.

[0014] Furthermore, the pivot includes a first pivot and a second pivot, the front part is rotatably connected to the main body through the first pivot, and the rear part is rotatably connected to the main body through the second pivot; the axes of the first pivot and the second pivot are parallel to the width direction of the vehicle body.

[0015] Furthermore, the high-voltage electrical module is fixed to the mounting bracket by a number of mounting points, all of which are located on the main body and on both sides of the high-voltage electrical module along the width of the vehicle body.

[0016] Furthermore, the mounting point includes a mounting platform extending downward from the main body and mounting plates located on both sides of the high-voltage electrical module; the main body and the mounting platform are provided with fixing holes, and the mounting plates are provided with mounting holes aligned with the fixing holes.

[0017] This application also provides a vehicle including the rear-side collision protection structure as described above.

[0018] This application integrates the high-voltage electrical module and mounting bracket into the storage box, effectively reducing the space occupied in the Z-direction and improving the utilization rate of vehicle storage space. Simultaneously, by incorporating a flip-up mounting bracket, when the rear of the vehicle is subjected to external force, the main body can rotate relative to the fixed part, causing the high-voltage electrical module to flip upwards. This effectively prevents damage to the high-voltage electrical module from collisions and compression, reduces the safety risk of high-voltage leakage, and ensures the safety of the entire vehicle. Attached Figure Description

[0019] Figure 1 This is a side view of the rear collision protection structure of the vehicle body assembled on the vehicle body.

[0020] Figure 2 yes Figure 1 The diagram shows a top view of the rear collision protection structure assembled on the vehicle body.

[0021] Figure 3 yes Figure 2 The diagram shows a three-dimensional view of the storage box, high-voltage electrical module, and mounting bracket assembled together.

[0022] Figure 4 yes Figure 3 The exploded view of the storage box, high-voltage electrical module, and mounting bracket shown.

[0023] Figure 5 yes Figure 3 The top view shows the storage box, high-voltage electrical module, and mounting bracket assembled together.

[0024] Figure 6 yes Figure 3 The side view shows the storage box, high-voltage electrical module, and mounting bracket assembled together.

[0025] Figure 7 yes Figure 3 The diagram shows the storage box and mounting bracket assembled together.

[0026] Figure 8 yes Figure 7 A perspective view of the storage compartment in the rear collision protection structure of the vehicle body.

[0027] Figure 9 yes Figure 7 A perspective view of the snap-fit ​​part of the rear collision protection structure of the vehicle body.

[0028] Figure 10 yes Figure 3 The diagram shows a partial 3D view of the storage box, high-voltage electrical module, and mounting bracket assembled together.

[0029] Figure 11 yes Figure 10 The diagram shows the hook part and the rear part assembled together.

[0030] Figure 12 yes Figure 3 A perspective view of the mounting bracket for the rear collision protection structure of the vehicle body.

[0031] Figure 13 yes Figure 12 A perspective view of the mounting bracket for the rear collision protection structure of the vehicle body.

[0032] Figure 14 yes Figure 12 The exploded view of the mounting bracket for the rear collision protection structure of the vehicle body is shown.

[0033] Figure 15 This is a side view of the vehicle of this application in a certain state when it is subjected to a rear-end collision.

[0034] Figure 16 This is a side view of the vehicle in this application under another state when it is subjected to a rear-end collision.

[0035] Figure 17 This is a side view of the vehicle in this application under another state of rear-end collision.

[0036] Explanation of icon numbers:

[0037] 100. Rear vehicle collision protection structure; 10. Rear floor; 20. Storage box; 21. Box body; 210. Cavity; 211. Support part; 212. Snap-fit ​​part; 2121. Base; 2122. Hook; 22. Flanged edge; 221. Front flange; 2211. Assembly hole; 2212. Bolt; 222. Rear flange; 223. Hook part; 224. Side flange; 30. High-voltage electrical module; 31. Mounting point; 311. Mounting platform; 312. Mounting piece; 3121. First mounting piece; 312 2. Second mounting plate; 313. Fixing hole; 314. Mounting hole; 315. Fixing component; 40. Mounting bracket; 41. Main body; 42. Fixing part; 421. Front part; 4211. Rotating part; 4212. Mounting part; 4213. Screw hole; 422. Rear part; 4221. Bracket part; 4222. Straight part; 4223. Flanged part; 43. Rotating shaft; 431. First rotating shaft; 432. Second rotating shaft; 50. Muffler; 200. Anti-collision beam; 300. Rear panel; 400. Rear sill. Detailed Implementation

[0038] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0039] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0040] See Figures 1 to 4 As shown, this application provides a rear collision protection structure for a vehicle body, including a rear floor 10, a storage box 20, a high-voltage electrical module 30, a mounting bracket 40, and a muffler 50. The storage box 20 is disposed on the rear floor 10. The high-voltage electrical module 30 and the mounting bracket 40 are disposed inside the storage box 20. The muffler 50 is disposed below the storage box 20 and connected to the rear floor 10.

[0041] The storage box 20 includes a box body 21 and a flange 22. The flange 22 is located on the outer edge of the box body 21 and extends outward. A cavity 210 is provided inside the box body 21. The storage box 20 and the high-voltage electrical module 30 are assembled into the cavity 210. Please also refer to... Figures 5 to 8 As shown, the bottom wall of the cavity 210 is provided with an upwardly protruding support portion 211 and a snap-fit ​​portion 212. The support portion 211 is used to support the mounting bracket 40, and the snap-fit ​​portion 212 is used to snap and fix the mounting bracket 40. In the embodiments of this application, there are two support portions 211 and two snap-fit ​​portions 212, but this application does not limit the number of support portions 211 and two snap-fit ​​portions 212.

[0042] According to the embodiments of this application, the storage box 20 is made of plastic to reduce the weight of the whole vehicle, and the flange 22 and the box body 21 are integrally injection molded.

[0043] See Figures 9 to 11As shown, the support portion 211 has a rectangular cross-section and is located near the center of the bottom wall of the cavity 210. The latching portion 212 is located on the outer side of the mounting bracket 40. The latching portion 212 includes a base 2121 extending upward from the bottom wall of the cavity 210 and a latch 2122 extending laterally from the base 2121. The latch 2122 protrudes to the upper surface of the mounting bracket 40 to latch and fix the mounting bracket 40. The double fixation of the support portion 211 and the latching portion 212 prevents the mounting bracket 40 from vibrating during vehicle movement, and the latching portion 212 is easy to detach from the mounting bracket in the event of a rear collision.

[0044] See Figure 8 As shown, the flange 22 includes a front flange 221 located on the front side of the housing 21, a rear flange 222 located on the rear side of the housing 21, and two side flanges 224 connecting the front flange 221 and the rear flange 222. The rear flange 222 has an upwardly protruding hook portion 223. The hook portion 223 is located on the rear side of the high-voltage electrical module 30 and the mounting bracket 40, and is engaged and fixed to the mounting bracket 40. The hook portion 223 has a similar or identical structure to the engaging portion 212 and both engage with the mounting bracket 40. In the embodiments of this application, the front side is along the length direction of the vehicle body (e.g., ...). Figure 6 (The arrow points in the direction of the front) and the rear side is the rear along the length of the vehicle body.

[0045] According to other embodiments of this application, the snap-fit ​​portion 212 and the snap hook portion 223 can be replaced with a magnetic structure or a low-strength bolt to achieve automatic unlocking upon rear collision, thereby triggering the high-voltage electrical module 30 and the mounting bracket 40 to flip.

[0046] join Figures 12 to 14 As shown, the high-voltage electrical module 30 is fixed to the mounting bracket 40 via several mounting points 31. Each mounting point 31 includes a mounting platform 311 protruding downwards from the mounting bracket 40 and mounting plates 312 located on both sides of the high-voltage electrical module 30. The mounting bracket 40 and mounting platform 311 are provided with fixing holes 313, and the mounting plates 312 are provided with mounting holes 314 aligned with the fixing holes 313. Fasteners 315 are assembled into the fixing holes 313 and mounting holes 314 to secure the high-voltage electrical module 30 and the mounting bracket 40.

[0047] According to the embodiments of this application, the number of mounting platform 311, mounting piece 312, fixing hole 313, and mounting hole 314 are all four. However, this application does not limit the number of mounting platform 311, mounting piece 312, fixing hole 313, and mounting hole 314, and the number can be selected according to actual needs.

[0048] In some embodiments, the mounting platform 311 is a rectangular boss, and the fixing hole 313 is formed in the middle of the mounting platform 311. The mounting piece 312 is L-shaped and includes a first mounting piece 3121 fixed to the side of the high-voltage electrical module 30 and a second mounting piece 3122 fixed to the mounting bracket 40. The first mounting piece 3121 is perpendicular to the second mounting piece 3122, and the mounting hole 314 is formed on the second mounting piece 3122.

[0049] The mounting bracket 40 includes a main body 41 and a fixing part 42. The fixing part 42 is rotatably connected to the main body 41. The main body 41 is used to fix the high-voltage electrical module 30. The fixing part 42 is fixed to the storage box 20. When the rear of the vehicle is subjected to external force, the main body 41 rotates relative to the fixing part 42, causing the high-voltage electrical module 30 to flip upward. By rotating the high-voltage electrical module 30 upward, it effectively avoids damage to the high-voltage electrical module 30 due to collision and compression.

[0050] The fixing part 42 includes a front part 421 located on the front side of the main body part 41 and a rear part 422 located on the rear side of the main body part 41. Both the front part 421 and the rear part 422 are rotatably connected to the main body part 41 via a pivot 43, making the rotation structure of the mounting bracket 40 more stable. In the event of a rear-end collision, the front part 421 and the rear part 422 can synchronously drive the main body part 41 to rotate, preventing the high-voltage electrical module 30 from flipping, shifting, or being damaged due to uneven force on one side, ensuring smooth flipping of the high-voltage electrical module 30, and further improving the stability of the collision protection.

[0051] According to other embodiments of this application, only one fixing part 42 may be provided. Specifically, when only the front part 421 is provided, the front part 421 is rotatably connected to the main body part 41, the front part 421 is fixed to the front flange 221, and the main body part 41 is fixed to the box body 21. In the event of a high-speed rear impact, the fixing point between the main body part 41 and the box body 21 first disengages, the rear side of the main body part 41 is squeezed upward and rotates relative to the front part 421, causing the high-voltage electrical module 30 to flip upward. When only the rear part 422 is provided, the rear part 422 is rotatably connected to the main body part 41, the rear part 422 is fixed to the rear flange 222, and the main body part 41 is fixed to the box body 21. In the event of a high-speed rear impact, the front side of the rear part 422 flips upward, the main body part 41 rotates relative to the rear part 422, and causes the high-voltage electrical module 30 to flip upward.

[0052] The pivot 43 includes a first pivot 431 and a second pivot 432. The front part 421 is rotatably connected to the main body 41 via the first pivot 431, and the rear part 422 is rotatably connected to the main body 41 via the second pivot 432. The axes of the first pivot 431 and the second pivot 432 are parallel to the width direction of the vehicle body. The dual pivot structure can enhance the rollover stability of the mounting bracket 40 and avoid the risk of single-point failure.

[0053] According to other embodiments of this application, the first pivot 431 and the second pivot 432 are also replaced with rotatable elements such as elastic hinges.

[0054] According to an embodiment of this application, a plurality of mounting points 31 are distributed on the main body 41 and located on both sides of the high-voltage electrical module 30 along the width direction of the vehicle body. A mounting platform 311 protrudes downward from the main body 41. Fixing holes 313 are also provided on the main body 41.

[0055] The main body 41 is fixed to the bottom of the box 21, and the front part 421 and the rear part 422 are fixed to the flange 22. The main body 41 is provided on the support part 211. The snap-fit ​​part 212 is provided on one side of the main body 41 along the width direction of the vehicle body, and the main body 41 snaps into the snap-fit ​​part 212. The front part 421 is screwed into the front flange 221, and the rear part 422 snaps into the hook part 223.

[0056] Specifically, the front part 421 includes a rotating part 4211 and a mounting part 4212 fixed together, with the rotating part 4211 rotatably connected to the main body part 41. The rotating part 4211 is inclined relative to the mounting part 4212, and upon rear impact, the rotating part 4211 approaches the main body part 41 and folds with the main body part 41. The rear part 422 includes a support part 4221 and a straight part 4222 and a flanged part 4223 fixed to the front and rear sides of the support part 4221. The straight part 4222 is rotatably connected to the main body part 41, and the flanged part 4223 engages with the hook part 223. Upon rear impact, the straight part 4222 approaches the main body part 41 and folds with the main body part 41.

[0057] The mounting portion 4212 is provided with a screw hole 4213, and the front flange 221 is provided with an assembly hole 2211 corresponding to the screw hole 4213. The bolt 2212 is assembled to the screw hole 4213 and the assembly hole 2211 to fix the front flange 221 and the front portion 421. In the embodiments of this application, there are two screw holes 4213 and two assembly holes 2211.

[0058] According to other embodiments of this application, the front portion 421 includes a rotating portion 4211 but does not have a mounting portion 4212. The rotating portion 4211 is an inclined plate and rotatably connected to the main body portion 41, and the rotating portion 4211 is fixed to the front portion of the storage box 20. Furthermore, in another embodiment, the front portion 421 includes a mounting portion 4212 but does not have a rotating portion 4211. The mounting portion 4212 is an inclined plate and rotatably connected to the main body portion 41. It is an inclined plate and rotatably connected to the main body portion 41 and fixed to the front portion of the storage box 20.

[0059] In some other embodiments, the rear portion 422 includes a straight portion 4222 and a flanged portion 4223 fixed together, but without a support portion 4221. The straight portion 4222 is rotatably connected to the main body portion 41, and the flanged portion 4223 engages with a hook portion 223 on the rear flanged portion 222. Furthermore, in another embodiment, the rear portion 422 includes a support portion 4221 and a flanged portion 4223 fixed together, but without a straight portion 4222. The support portion 4221 is rotatably connected to the main body portion 41, and the flanged portion 4223 engages with a hook portion 223 on the rear flanged portion 222.

[0060] According to other embodiments of this application, the front part 421 and the rear part 422 may also include three or more multi-fold structures connected together. In this regard, this application does not impose specific restrictions on the structure of the front part 421 and the rear part 422. In the event of a high-speed rear collision, the main body 41 can be flipped relative to the front part 421 and the rear part 422 and drive the high-voltage electrical module 30 to flip.

[0061] The main body 41 is first set on the two support parts 211, and the edge of the main body 41 is engaged and fixed with the snap-fit ​​part 212. The edge of the flange part 4223 is engaged and fixed with the hook part 223. Upon subsequent collision, the flange part 4223 disengages from the hook part 223 first.

[0062] According to the embodiments of this application, the high-voltage electrical module 30 and the main body 41 are horizontally disposed in the storage box 20. When there is a rear collision, the front side of the high-voltage electrical module 30 and the main body 41 is lower than the rear side of the high-voltage electrical module 30 and the main body 41, and the rear side of the high-voltage electrical module 30 flips upward.

[0063] The muffler 50 supports the storage box 20 and the high-voltage electrical module 30 to prevent the storage box 20 from breaking and the high-voltage electrical module 30 and mounting bracket 40 from falling during a rear-end collision. The muffler 50 serves as a support and protection to prevent the high-voltage electrical module 30 from falling. Alternatively, a fall protection net or other protective structure can be used instead of the muffler for support.

[0064] According to other embodiments of this application, the high-voltage electrical module 30 and the main body 41 can also be tilted and arranged in the cavity 210 of the storage box 20. This application mainly uses the rotating shaft 43 of the mounting bracket 40 to flip it. The layout of the high-voltage electrical module 30 and the main body 41 with the front high and the back low or the front low and the back high can achieve flipping during rear collision.

[0065] See Figures 15 to 17 As shown, this application also provides a vehicle, including the rear collision protection structure 100, anti-collision beam 200, rear panel 300, and rear sill 400 as described above. The rear collision protection structure 100 is disposed on the front side of the anti-collision beam 200 and the rear panel 300.

[0066] According to the embodiments of this application, the rear of the vehicle body is subjected to external forces, including rear-end collisions. When the rear-end collision force does not reach a certain level, structures such as the anti-collision beam 200, rear panel 300, and rear sill 400 can withstand the rear-end collision force, protecting the storage box 20 and the high-voltage electrical module 30 from being squeezed or collided. When the rear-end collision force reaches a certain level, such as in the case of a high-speed rear-end collision, structures such as the anti-collision beam 200, rear panel 300, and rear sill 400 deform, the storage box 20 is damaged by the force, and the main body 41 can rotate relative to the fixed part 42, causing the high-voltage electrical module 30 to flip upwards, thereby effectively avoiding safety problems caused by collision damage to the high-voltage electrical module 30.

[0067] According to other embodiments of this application, the external force on the rear of the vehicle body also includes the rear of the vehicle body being squeezed. When the squeezing force reaches a certain level, the anti-collision beam 200, the rear panel 300 and the rear sill 400 and other structures are deformed, the storage box 20 is damaged by the force, and the main body 41 can rotate relative to the fixed part 42 and drive the high voltage electrical module 30 to flip upward, thereby effectively avoiding the safety problems caused by the collision damage to the high voltage electrical module 30.

[0068] like Figure 1 This is the initial state before a rear-end collision, where the mounting bracket 40 is fixed inside the storage box 20, and the high-voltage electrical module 30 is mounted on the mounting bracket 40. When the vehicle body is subjected to a rear-end collision, such as... Figure 15 As shown, the anti-collision beam 200 is squeezed and deformed, and the anti-collision beam 200 is squeezed to the rear panel 300 and the rear sill 400. At this time, the mounting bracket 40 still maintains its original installation state.

[0069] like Figure 16 As shown, the anti-collision beam 200, rear panel 300, and rear sill 400 continue to press forward, causing the muffler 50 to deform under pressure. The main body 41 and rear part 422 of the mounting bracket 40 are detached from the storage box 20 and rotate along the pivot 43. The rear side of the main body 41 lifts, causing the rear side of the high-voltage electrical module 30 to lift. When the vehicle body is further rear-ended, such as... Figure 17 As shown, the straight portion 4222 of the rear portion 422 almost overlaps with the main body portion 41, and the rotating portion 4211 of the front portion 421 is close to the main body portion 41. At this time, the high voltage electrical module 30 and the main body portion 41 are inclined relative to the horizontal direction, and the front side of the high voltage electrical module 30 and the main body portion 41 is lower than the rear side of the high voltage electrical module 30 and the main body portion 41, so the high voltage electrical module 30 is not squeezed.

[0070] This application integrates the high-voltage electrical module 30 and the mounting bracket 40 within the storage box 20, effectively reducing the space occupied in the Z-direction and improving the utilization rate of vehicle storage space. Simultaneously, by providing a flip-up mounting bracket 40, in the event of a rear-end collision, the main body 41 can rotate relative to the fixed part 42, causing the high-voltage electrical module 30 to flip upwards. This effectively prevents damage to the high-voltage electrical module 30 due to collision and compression, reduces the safety risk of high-voltage leakage, and ensures the safety of the entire vehicle.

[0071] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A rear-end collision protection structure for a vehicle body, characterized in that, include: The rear floor, storage box, high-voltage electrical module, and mounting bracket are provided. The storage box is located on the rear floor, and the high-voltage electrical module and the mounting bracket are located inside the storage box. The mounting bracket includes a main body for fixing the high-voltage electrical module and a fixing part rotatably connected to the main body. The fixing part is fixed to the storage box. When the rear of the vehicle is subjected to an external force, the main body rotates relative to the fixing part and causes the high-voltage electrical module to flip upward.

2. The rear collision protection structure of the vehicle body according to claim 1, characterized in that, The fixing part includes a front part and a rear part located on both sides of the main body part, and the front part and the rear part are rotatably connected to the main body part through a rotating shaft.

3. The rear collision protection structure of the vehicle body according to claim 2, characterized in that, The storage box includes a box body and a flange located on the outer edge of the box body; the main body is fixed to the bottom of the box body, and the front and rear parts are fixed to the flange.

4. The rear collision protection structure of the vehicle body according to claim 3, characterized in that, The box body has a recessed cavity, and the bottom wall of the recessed cavity has an upwardly protruding support part and a snap-fit ​​part. The main body is disposed on the support part, and the snap-fit ​​part is disposed on at least one side of the main body, and the main body is snapped into the snap-fit ​​part.

5. The rear collision protection structure of the vehicle body according to claim 3, characterized in that, The flange includes a front flange on the front side of the box body and a rear flange on the rear side of the box body. The front part is screwed and fixed to the front flange, and the rear flange is provided with an upwardly protruding hook part, which is engaged with the hook part.

6. The rear collision protection structure of the vehicle body according to claim 2, characterized in that, The front part includes a rotating part and a mounting part fixed together. The rotating part is rotatably connected to the main body. Upon rear collision, the rotating part approaches the main body and folds with the main body. The rear part includes a support part and a straight part and a flanged part fixed on both sides of the support part. The straight part is rotatably connected to the main body. Upon rear collision, the straight part approaches the main body and folds with the main body.

7. The rear collision protection structure of the vehicle body according to claim 1, characterized in that, The high-voltage electrical module and the main body are horizontally arranged in the storage box, and in the event of a rear collision, the front side of the high-voltage electrical module and the main body is lower than the rear side of the high-voltage electrical module and the main body.

8. The rear collision protection structure of the vehicle body according to claim 1, characterized in that, A muffler is provided below the storage box. The muffler is connected to the rear floor. In the event of a rear collision, the muffler supports the storage box and the high-voltage electrical module.

9. The rear collision protection structure of the vehicle body according to claim 2, characterized in that, The pivot includes a first pivot and a second pivot. The front part is rotatably connected to the main body through the first pivot, and the rear part is rotatably connected to the main body through the second pivot. The axes of the first pivot and the second pivot are parallel to the width direction of the vehicle body.

10. The rear collision protection structure of the vehicle body according to claim 2, characterized in that, The high-voltage electrical module and the mounting bracket are fixed by a number of mounting points, all of which are located on the main body and on both sides of the high-voltage electrical module along the width of the vehicle body.

11. The rear collision protection structure of the vehicle body according to claim 10, characterized in that, The mounting point includes a mounting platform extending downward from the main body and mounting plates on both sides of the high-voltage electrical module; the main body and the mounting platform are provided with fixing holes, and the mounting plates are provided with mounting holes aligned with the fixing holes.

12. A vehicle, characterized in that, Includes the rear-end collision protection structure of the vehicle body as described in any one of claims 1-11.

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