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 assembly, an electric appliance module, a mounting bracket, a rear enclosing plate, a rear anti-collision beam and a collision block, wherein the rear floor assembly and the rear anti-collision beam are arranged on the front side and the rear side of the rear enclosing plate; the electric appliance module is fixed below the rear floor assembly through the mounting bracket; the front portion of the installation support and the front portion of the electric appliance module incline downwards, and the collision block is located behind the electric appliance module. According to the vehicle body rear collision protection structure and the vehicle, the safety performance during high-speed rear-end collision can be improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle body rear collision protection structure and a vehicle. Background Art

[0002] In recent years, with the rapid development of new energy vehicles, the number of various electrical components has continued to increase, and the main manufacturers have also continuously increased their requirements for the safety of electrical components, especially high-voltage components.

[0003] Vehicles with anti-collision components, such as high-voltage electrical components, located at the rear, particularly those with short rear overhangs, can only meet safety requirements for low- and medium-speed rear-end collisions, but still present significant risks in high-speed rear-end collisions. In a high-speed rear-end collision, high-voltage electrical components, often located in thin areas, can collide with chassis components or seats, causing damage and malfunction, potentially leading to high-voltage short circuits or fires, resulting in property damage and life-threatening consequences for occupants.

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

[0005] The present application provides a vehicle body rear collision protection structure and a vehicle that improves high-speed rear-end collision safety performance.

[0006] The present application discloses a rear vehicle body collision protection structure, comprising: a rear floor assembly, an electrical module, a mounting bracket, a rear panel, a rear anti-collision beam and a collision block, wherein the rear floor assembly and the rear anti-collision beam are arranged on the front and rear sides of the rear panel; the electrical module is fixed below the rear floor assembly by the mounting bracket; the front parts of the mounting bracket and the electrical module are both inclined downward, and the collision block is located behind the electrical module.

[0007] Furthermore, the mounting bracket includes a bracket body, a plurality of first mounting points connected to the rear floor assembly, and a plurality of second mounting points connected to the electrical module; the plurality of first mounting points and the plurality of second mounting points are both arranged on the bracket body.

[0008] Furthermore, the plurality of first mounting points include a plurality of front first mounting points arranged on the front side of the mounting bracket and a plurality of rear first mounting points arranged on the rear side of the mounting bracket; the number of the front first mounting points is less than the number of the rear first mounting points.

[0009] Furthermore, the rear floor assembly includes a rear floor body and several bosses protruding downward from the rear floor body, the several bosses respectively corresponding to the several first mounting points, and the downward protruding length of the boss located on the front side is greater than the downward protruding length of the boss located on the rear side.

[0010] Furthermore, the bracket body includes a main board portion and a guide portion bent downward from the front side of the main board portion, the main board portion shields the upper portion of the electrical module, and the guide portion shields the front side of the electrical module.

[0011] Furthermore, the vehicle body rear collision protection structure also includes a rear subframe, which is arranged in front of the mounting bracket and the electrical module; the guide portion is used to guide the mounting bracket to move forward and downward during a rear collision.

[0012] Furthermore, a plurality of cavities penetrating along the front-to-back direction are formed on the collision block; and / or the collision block is an aluminum extrusion.

[0013] Furthermore, the bracket body also includes a fixing portion extending backward from the rear side of the main board portion; the collision block is mounted on the fixing portion.

[0014] Furthermore, the front portion of the collision block is also tilted downward, and the rear portion of the collision block protrudes below the rear anti-collision beam.

[0015] Furthermore, the mounting bracket also includes a plurality of third mounting points, the front of the collision block is located below the mounting bracket and connected to the third mounting points; the rear of the collision block forms a bevel, and the bevel is arranged perpendicular to the horizontal direction.

[0016] Furthermore, the bracket body also includes a bent portion bent downward from the rear side of the main board portion, and the mounting bracket also includes a reinforcing plate assembled to the bracket body, the reinforcing plate covering the main board portion, the guide portion and the bent portion.

[0017] The present application also discloses a vehicle, comprising the vehicle body rear collision protection structure as described above.

[0018] The present invention's rear-end collision protection structure and vehicle are equipped with a mounting bracket, which secures the electrical module to the underside of the rear floor assembly. The mounting bracket and the front of the electrical module are both tilted downward. During a rear-end collision, the mounting bracket can cause the electrical module to tilt downward and evade the vehicle, allowing it to fall off the rear floor assembly. In high-speed rear-end collisions, the mounting bracket's protection ensures the integrity of the electrical module, preventing it from colliding with other vehicle body components. This prevents functional failure and safety risks caused by rigid collisions, effectively improving the safety and reliability of the vehicle during high-speed rear-end collisions.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0021] Figure 1 It is a side view of an embodiment of the vehicle body rear collision protection structure of the present application.

[0022] Figure 2 yes Figure 1 A partial enlarged view of .

[0023] Figure 3 yes Figure 1 A three-dimensional view of the center-rear floor assembly.

[0024] Figure 4 yes Figure 1 A perspective view of the mounting bracket.

[0025] Figure 5 yes Figure 4 A three-dimensional view of the assembled mounting bracket and rear floor assembly.

[0026] Figure 6 yes Figure 1 A partial enlarged view of the bottom view of the rear impact protection structure of the mid-body.

[0027] Figure 7 yes Figure 1 A three-dimensional diagram of the electrical module.

[0028] Figure 8 yes Figure 1 A three-dimensional diagram of the local structure.

[0029] Figure 9 yes Figure 8 A stereogram from another perspective.

[0030] Figure 10 yes Figure 1 Schematic diagram of the force flow transmission path of the rear collision protection structure of the vehicle body during a rear collision.

[0031] Figure 11 It is a side view of another embodiment of the vehicle body rear collision protection structure of the present application.

[0032] Figure 12 yes Figure 10 A three-dimensional diagram of the assembled mounting bracket and electrical module.

[0033] Description of reference numerals:

[0034] 1. 1', rear floor assembly; 11. Rear floor body; 12. 121, 122, boss; 2. 2', electrical module; 21. Mounting platform; 3. 3', mounting bracket; 301, first mounting point; 3011, front first mounting point; 3012, rear first mounting point; 302, second mounting point; 303, third mounting point; 31. 31', bracket body; 311, 311', main board; 312, 312', guide portion; 313, fixing portion; 314', bending portion; 32', reinforcement plate; 4. 4', rear panel; 5. 5', rear anti-collision beam; 6. 6', rear subframe; 7. 7', collision block; 71, cavity; 72, chamfered surface; 8. fastener. DETAILED DESCRIPTION

[0035] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0036] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0037] Hereinafter, the embodiments of the present specification will be described in detail. In the present application, the front refers to the direction in which the vehicle is traveling forward, the rear refers to the direction in which the vehicle is traveling backward, and the left and right sides refer to the two sides in the width direction of the vehicle.

[0038] like Figure 1 and Figure 2 As shown, the present application provides a vehicle body rear collision protection structure, including a rear floor assembly 1, an electrical module 2, a mounting bracket 3, a rear panel 4 and a rear anti-collision beam 5.

[0039] The rear floor assembly 1 and rear anti-collision beam 5 are mounted on the front and rear sides of the rear panel 4. Mounting brackets 3 are secured to the electrical module 2 and rear floor assembly 1, respectively. The electrical module 2 is secured to the underside of the rear floor assembly 1 via the mounting brackets 3. In the event of a rear-end collision, the mounting brackets 3 can tilt and drop the electrical module 2 downward, protecting it.

[0040] Furthermore, the rear collision protection structure of this embodiment further includes a rear subframe 6. The rear subframe 6 is disposed in front of the mounting bracket 3 and the electrical module 2. During a rear-end collision, the mounting bracket 3 contacts the rear side of the rear subframe 6 to guide the mounting bracket 3 and the electrical module 2 to slide toward the front and bottom of the rear subframe 6, thereby preventing direct impact between the electrical module 2 and the rear subframe 6.

[0041] like Figure 3 As shown, the rear floor assembly 1 includes a rear floor body 11 and several bosses 12. The rear portion of the rear floor body 11 is connected to the rear panel 4, and the bosses 12 protrude downward from the rear floor body 11. The mounting bracket 3 is assembled below the bosses 12, and the electrical module 2 is assembled below the mounting bracket 3. Specifically, in this embodiment, the rear floor body 11 and bosses 12 are both made of plastic and integrally molded to reduce weight, facilitating a lightweight design.

[0042] The bottom of the rear floor panel 11 is generally horizontal, with the front boss 12 extending downward longer than the rear boss 12. This allows the bottom of the front boss 12 to be lower than the bottom of the rear boss 12. The mounting bracket 3 and the front of the electrical module 2 are both tilted downward, allowing the mounting bracket 3 to cause the electrical module 2 to flip downward and fall off during a rear-end collision.

[0043] like Figure 4 As shown, the mounting bracket 3 includes a bracket body 31. The bracket body 31 comprises a main plate portion 311 and a guide portion 312. The main plate portion 311 is positioned above the electrical module 2, shielding the upper side of the electrical module 2. The guide portion 312 bends downward from the front side of the main plate portion 311 and is positioned in front of the electrical module 2, shielding the front side of the electrical module 2.

[0044] In this embodiment, the mounting bracket 3 is a sheet metal component with good rigidity and strength. The mounting bracket 3, by providing a main plate portion 311 and a guide portion 312, shields the upper portion and the front portion of the electrical module 2, respectively. This creates a physical barrier between the electrical module 2 and the rear subframe 6, providing comprehensive protection for the electrical module 2 and minimizing functional damage to the module 2 during a collision.

[0045] During a rear-end collision, guide portion 312 contacts the rear side of rear subframe 6, guiding mounting bracket 3 and electrical module 2 toward the front and lower portion of rear subframe 6. By bending guide portion 312 forward and downward, and ensuring that it initially contacts the rear side of rear subframe 6 during a rear-end collision, this provides a trajectory guide for the subsequent movement of mounting bracket 3 and electrical module 2, preventing mounting bracket 3 from becoming stuck due to rigid collisions. Furthermore, since the front portions of mounting bracket 3 and electrical module 2 are both tilted downward, they are more likely to rotate downward along a predetermined trajectory during a rear-end collision, improving the smoothness and robustness of mounting bracket 3 under complex collision conditions and enhancing the reliability and safety of the overall structure.

[0046] Please also refer to Figure 5 and Figure 6 The mounting bracket 3 includes a plurality of first mounting points 301 and a plurality of second mounting points 302. Both the first mounting points 301 and the second mounting points 302 are disposed on the mainboard portion 311. The first mounting points 301 correspond to the bosses 12 and are used to connect to the rear floor assembly 1. The second mounting points 302 are used to connect to the electrical module 2.

[0047] The first mounting point 301 is a through-hole, and a corresponding opening is provided at the bottom of the boss 12. Fasteners 8 pass through the first mounting point 301 and the boss 12 from bottom to top, securing the mounting bracket 3 to the boss 12 through the preload of fasteners 8. In the event of a rear-end collision, the plastic boss 12 breaks under the combined force of the impact and the forces of the mounting bracket 3, tearing the lower portion of the boss 12 and separating it from the rear floor assembly 1. The mounting bracket 3, along with the damaged lower portion of the boss 12 and the electrical module 2, falls off the rear floor assembly 1.

[0048] The plurality of first mounting points 301 include a plurality of front first mounting points 3011 disposed on the front side of the mounting bracket 3 and a plurality of rear first mounting points 3012 disposed on the rear side of the mounting bracket 3. The number of the front first mounting points 3011 is smaller than the number of the rear first mounting points 3012. As a result, the connection strength between the front first mounting points 3011 and the boss 12 is weaker than the connection strength between the rear first mounting points 3012 and the boss 12, making the front boss 12 more susceptible to breakage.

[0049] At the same time, since the downward protrusion length of the front boss 121 is greater than the downward protrusion length of the rear boss 122, the front boss 121 is easier to deform and has weaker rigidity than the rear boss 122, and thus will break first during a collision.

[0050] Therefore, when the vehicle body is hit from the rear, the front portion of the mounting bracket 3 can be separated from the rear floor assembly 1 more quickly, making it easier for the mounting bracket 3 to be aligned with the electrical module 2. Figure 1Flipping downward counterclockwise from the viewing angle is beneficial to avoiding direct collision between the electrical module 2 and the rear sub-frame 6 as much as possible, thereby better protecting the electrical module 2.

[0051] In this embodiment, there are two front first mounting points 3011 and four rear first mounting points 3012. The two front first mounting points 3011 are located on the left and right edges of the main board portion 311, respectively, to facilitate first detachment from the rear floor assembly 1. The four rear first mounting points 3012 are located on the left and right sides and rear of the main board portion 311.

[0052] It is understood that the present application does not impose any restrictions on the specific form and shape of the first mounting point 301, as long as it can achieve separation of the mounting bracket 3 from the rear floor assembly 1 in the event of an impact. In some cases, other methods can be used to separate the mounting bracket 3 from the rear floor assembly 1. For example, the mounting bracket 3 can overcome the preload force of the fastener 8 and move away from the boss 12, thereby causing the electrical module 2 to be separated from the rear floor assembly 1.

[0053] Please also refer to Figure 7 The second mounting point 302 is a circular through-hole. The electrical module 2 is equipped with mounting platforms 21 extending to the left, right, and rear sides. These platforms have corresponding openings that mate with the second mounting points 302. Fasteners 8 pass through the second mounting points 302 and mounting platforms 21 from top to bottom, securing the mounting bracket 3 to the electrical module 2. In the event of a rear-end collision, the mounting bracket 3 and the electrical module 2 remain connected and move together, providing continuous protection for the electrical module 2.

[0054] There are four second mounting points 302 and four mounting platforms 21, two of which are located on the left and right sides of the electrical module 2, and the other two are located on the rear side of the electrical module 2. Several first mounting points 301 are located around the second mounting points 302. Several weight-reducing holes are also provided on the mounting bracket 3 to reduce weight.

[0055] When the vehicle is struck from behind, mounting bracket 3 moves forward. Because the front portions of mounting bracket 3 and electrical module 2 are both tilted downward, and a downwardly curved guide portion 312 is provided on the front portion of mounting bracket 3, guide portion 312 contacts rear subframe 6 and guides mounting bracket 3 and electrical module 2 forward and downward, providing sufficient buffer time for the vehicle's controller to disconnect power to electrical module 2. When mounting bracket 3 moves to a certain extent, it disengages from rear floor assembly 1, allowing electrical module 2 to also disengage from the vehicle body. This prevents severe damage to electrical module 2 in the immediate period immediately following a rear-end collision, potentially leading to malfunction and fire, and thus improves safety.

[0056] Further, if Figure 8 and Figure 9As shown, in some embodiments, the rear vehicle body collision protection structure further includes a collision block 7. The collision block 7 is fixed to the mounting bracket 3 and is located behind the electrical module 2. The collision block 7 can deform under impact, effectively absorbing the energy of the collision, reducing the impact of the collision force on the electrical module 2, and creating a safer buffer space for the electrical module 2.

[0057] The bracket body 31 also includes a fixing portion 313 extending rearward from the rear side of the main plate portion 311. The collision block 7 is mounted on the fixing portion 313. Specifically, the fixing portion 313 is provided with a plurality of third mounting points 303, which are circular through-holes. The front portion of the collision block 7 is located below the mounting bracket 3 and is provided with a plurality of corresponding openings connected to the third mounting points 303. The fasteners 8 pass through the third mounting points 303 and the collision block 7 from top to bottom, thereby assembling the collision block 7 with the mounting bracket 3. In this embodiment, there are two third mounting points 303.

[0058] The collision block 7 is formed with multiple cavities 71 extending forward and backward, providing high rigidity. Under impact, these cavities 71 absorb energy and collapse, thereby reducing the risk of damage to the electrical module 2. A chamfered surface 72 is formed on the rear of the collision block 7. When not in collision, the chamfered surface 72 is perpendicular to the horizontal direction, increasing the contact area with the collision barrier and enabling the collision block 7 to achieve better energy absorption.

[0059] The rear portion of the collision block 7 protrudes below the rear anti-collision beam 5. In the event of a rear-end collision, the rear anti-collision beam 5 will first deform to absorb some of the collision energy. The front portion of the collision block 7 is also tilted downward, so that the collision block 7 is generally lower in front and higher in the back. When the collision block 7 is subjected to the impact force, the rear bevel 72 first contacts the collision barrier, guiding the collision block 7 to form a counterclockwise rotation trend, with the rear portion of the collision block 7 tilting upward and the front portion pressing downward. Because the front portion of the collision block 7 is connected to the mounting bracket 3, the front portion of the collision block 7 will apply a downward force to the mounting bracket 3, which facilitates the rapid disengagement of the rear first mounting point 3012 of the mounting bracket 3 from the rear floor assembly 1.

[0060] In this embodiment, the collision block 7 is an aluminum extrusion, which is lightweight and conducive to lightweight design while having high structural strength. In some cases, the collision block 7 can also be designed to be a material with a certain energy absorption effect, such as foamed aluminum or plastic, to minimize damage to the electrical module 2.

[0061] like Figure 10As shown, when the vehicle is hit from the rear, the collision barrier first hits the rear anti-collision beam 5, which will first deform to absorb part of the collision energy. After the rear anti-collision beam 5 is deformed, the collision barrier will contact the collision block 7. After the collision block 7 absorbs the energy and collapses, it pushes the mounting bracket 3 and the electrical module 2 forward, and the rear floor assembly 1 also moves forward. Since the front parts of the mounting bracket 3 and the electrical module 2 are both tilted downward, and the front part of the mounting bracket 3 is provided with a downwardly bent guide portion 312, the guide portion 312 contacts the rear subframe 6 forward and guides the mounting bracket 3 and the electrical module 2 to move forward and downward. When the mounting bracket 3 moves to a certain extent, it will detach from the rear floor assembly 1, causing the electrical module 2 to detach from the vehicle body together, thereby avoiding serious damage to the electrical module 2 in a short period of time after the vehicle is rear-ended, resulting in functional failure and fire risks, thereby improving safety.

[0062] Figure 11 A partially enlarged side view of another embodiment of the vehicle body rear protection structure of the present application is shown. The vehicle body rear protection structure of this embodiment includes a rear floor assembly 1', an electrical module 2', a mounting bracket 3', a rear panel 4', a rear anti-collision beam 5', a rear subframe 6', and a collision block 7'.

[0063] The main difference between this embodiment and the previous embodiment lies in the specific structure of the rear floor assembly 1', the mounting bracket 3', and the collision block 7'. In this embodiment, the collision block 7' is assembled on the rear panel 4'.

[0064] like Figure 12 As shown, Figure 11 In the embodiment, the bracket body 31' further includes a bent portion 314' bent downward from the rear side of the main plate portion. The bent portion 314' is located at the rear side of the electrical module 2', shielding the rear side of the electrical module 2' and providing more comprehensive protection for the electrical module 2'.

[0065] The mounting bracket 3' further includes a reinforcing plate 32' assembled to the bracket body 31'. The reinforcing plate 32' covers the main plate portion 311', the guide portion 312' and the bent portion 314' to enhance the overall strength of the mounting bracket 3'.

[0066] The present application also provides a vehicle, comprising the vehicle body rear collision protection structure as described above.

[0067] The present invention's rear-end collision protection structure and vehicle are equipped with a mounting bracket, which secures the electrical module to the underside of the rear floor assembly. The mounting bracket and the front of the electrical module are both tilted downward. During a rear-end collision, the mounting bracket can cause the electrical module to tilt downward and evade the vehicle, allowing it to fall off the rear floor assembly. In high-speed rear-end collisions, the mounting bracket's protection ensures the integrity of the electrical module, preventing it from colliding with other vehicle body components. This prevents functional failure and safety risks caused by rigid collisions, effectively improving the safety and reliability of the vehicle during high-speed rear-end collisions.

[0068] The rear collision protection structure of the vehicle body and the vehicle of the present application adopt different protection strategies for the high-voltage electrical module in response to rear-end collisions at different vehicle speeds: at medium and low speeds, the damage caused by the rear collision force is small, and the basic structure of the rear vehicle body can better protect the high-voltage electrical module to meet safety requirements. In the event of a high-speed collision, such as when the speed is between 84km / h and 100km / h, the rear of the vehicle body is provided with an induced flipping structure or a protective structure to cause the high-voltage electrical module to flip or fall off and thus avoid collision with the rear subframe and other structures in front, thereby meeting the collision impact safety requirements of high-speed collisions. When the speed or collision exceeds a certain level, such as when the speed is greater than 100km / h, a power-off measure is adopted; therefore, the flipping or falling of the high-voltage electrical module can leave enough time for power-off. The present application significantly improves the safety of rear collisions and effectively reduces the damage caused to the occupants in the vehicle by adopting a segmented rear collision protection strategy.

[0069] It should be noted that the technical solutions or technical 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 shall be included in the scope of protection of this application.

Claims

1. A vehicle body rear collision protection structure, characterized in that: include: The rear floor assembly, the electrical module, the mounting bracket, the rear panel, the rear anti-collision beam and the collision block, wherein the rear floor assembly and the rear anti-collision beam are arranged on the front and rear sides of the rear panel; the electrical module is fixed to the bottom of the rear floor assembly through the mounting bracket; the front of the mounting bracket and the electrical module are both tilted downward, and the collision block is located behind the electrical module.

2. The vehicle body rear collision protection structure according to claim 1, characterized in that: The mounting bracket includes a bracket body, a plurality of first mounting points connected to the rear floor assembly, and a plurality of second mounting points connected to the electrical module; the plurality of first mounting points and the plurality of second mounting points are both arranged on the bracket body.

3. The vehicle body rear collision protection structure according to claim 2, characterized in that: The plurality of first mounting points include a plurality of front first mounting points arranged on the front side of the mounting bracket and a plurality of rear first mounting points arranged on the rear side of the mounting bracket; the number of the front first mounting points is less than the number of the rear first mounting points.

4. The vehicle body rear collision protection structure according to claim 2, characterized in that: The rear floor assembly includes a rear floor body and a plurality of bosses protruding downward from the rear floor body, wherein the plurality of bosses respectively correspond to the plurality of first mounting points, and the downward protruding length of the boss located on the front side is greater than the downward protruding length of the boss located on the rear side.

5. The vehicle body rear collision protection structure according to claim 2, characterized in that: The bracket body includes a main board portion and a guide portion bent downward from the front side of the main board portion. The main board portion shields the upper portion of the electrical module, and the guide portion shields the front side of the electrical module.

6. The vehicle body rear impact protection structure according to claim 5, characterized in that: The rear collision protection structure of the vehicle body further includes a rear subframe, which is arranged in front of the mounting bracket and the electrical module; the guide portion is used to guide the mounting bracket to move forward and downward during a rear collision.

7. The vehicle body rear impact protection structure according to claim 5, characterized in that: The collision block is formed with a plurality of cavities penetrating along the front-to-back direction; and / or the collision block is an aluminum extrusion part.

8. The vehicle body rear impact protection structure according to claim 7, characterized in that: The bracket body further includes a fixing portion extending backward from the rear side of the main board portion; the collision block is mounted on the fixing portion.

9. The vehicle body rear impact protection structure according to claim 7, characterized in that: The front portion of the collision block is also tilted downward, and the rear portion of the collision block protrudes below the rear anti-collision beam.

10. The vehicle body rear impact protection structure according to claim 7, characterized in that: The mounting bracket further includes a plurality of third mounting points. The front portion of the collision block is located below the mounting bracket and connected to the third mounting points. The rear portion of the collision block forms an oblique cut surface, which is arranged perpendicular to the horizontal direction.

11. The vehicle body rear impact protection structure according to claim 5, characterized in that: The bracket body further includes a bent portion bent downward from the rear side of the main board portion, and the mounting bracket further includes a reinforcing plate assembled onto the bracket body, the reinforcing plate covering the main board portion, the guide portion, and the bent portion.

12. A vehicle, characterized in that: The vehicle body rear impact protection structure comprises the vehicle body rear impact protection structure according to any one of claims 1 to 11.

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