Vehicle body rear protection structure and vehicle
By designing and installing brackets and guide structures at the rear of the vehicle, the electrical modules are driven to rotate along a preset trajectory, which solves the problem of damage to electrical components in high-speed rear-end collisions, improves the safety and reliability of the vehicle, and reduces the risk of injury to occupants.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-21
AI Technical Summary
In the event of a high-speed rear-end collision, the high-voltage electrical components of existing vehicles are located in thin-plate areas, making them prone to impacting chassis parts or seats, leading to functional failure and posing a risk of high-voltage short circuits, leakage, or fire, thus affecting the safety of occupants.
A rear protective structure for the vehicle body was designed, including a mounting bracket and an electrical module. The mounting bracket is suspended below the rear floor assembly. In the event of a high-speed rear-end collision, the bracket drives the electrical module to flip along a preset trajectory to avoid collision with other components. The module is also guided to slide by a guide part in contact with the rear subframe, thereby enhancing safety.
This effectively avoids damage to the electrical modules during high-speed rear-end collisions, reduces the risk of short circuits and fires, improves the vehicle's high-speed collision safety and reliability, and ensures the safety of occupants.
Smart Images
Figure CN224146022U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, and more particularly to a rear protective structure for a vehicle body and a vehicle. Background Technology
[0002] In recent years, with the rapid development of new energy vehicles, the number of various electrical components has been increasing, and OEMs have been raising their requirements for the safety of electrical components, especially high-voltage components.
[0003] For vehicles with high-voltage electrical components located at the rear, especially those with short rear overhangs, most only meet the safety requirements for low- to medium-speed rear-end collisions. Significant risks remain in high-speed rear-end collisions. When a vehicle is involved in a high-speed rear-end collision, the high-voltage electrical components, often located in thin-walled areas, can impact chassis parts or seats, causing damage, malfunction, and potentially leading to high-voltage short circuits, electrical leaks, or fires, resulting in property damage and life-threatening situations for the occupants.
[0004] Therefore, it is necessary to provide an improved rear protective structure and vehicle to solve the above problems. Utility Model Content
[0005] This application provides a rear-end protection structure and vehicle for improving safety in high-speed rear-end collisions.
[0006] This application discloses a rear protective structure for a vehicle body, including: a rear floor assembly, an electrical module, and a mounting bracket; the electrical module is suspended below the rear floor assembly via the mounting bracket; the mounting bracket is fixed to both the electrical module and the rear floor assembly; the mounting bracket includes a bracket body and a reinforcing plate fixed to the bracket body, the bracket body including a main body portion and a guide portion bent downward from the front side of the main body portion; the main body portion is disposed above the electrical module, and the guide portion is located at the front side of the electrical module.
[0007] Furthermore, both the mounting bracket and the front of the electrical module are inclined downwards; the main board covers the upper part of the electrical module, and the guide portion covers the front side of the electrical module.
[0008] Furthermore, the main board is provided with a plurality of first mounting points that are connected to the rear floor assembly. The plurality of first mounting points are located on the left and right sides of the main board, and the first mounting points are U-shaped holes with the opening facing backward.
[0009] Furthermore, the motherboard is also provided with a plurality of second mounting points connected to the electrical module; the plurality of first mounting points are arranged around the plurality of second mounting points.
[0010] Furthermore, the rear protective structure of the vehicle body also includes a rear subframe, which is disposed in front of the mounting bracket and the electrical module; in the event of a rear collision, the guide portion is used to contact the rear side of the rear subframe to slide forward and downward toward the rear subframe.
[0011] Furthermore, the bracket body also includes a rear cover portion that bends downward from the rear side of the motherboard portion, the rear cover portion shielding the rear side of the electrical module.
[0012] Furthermore, the reinforcing plate includes a main board reinforcing part, a guide reinforcing part, and a rear cover reinforcing part, which are respectively provided corresponding to the main board part, the guide part, and the rear cover part.
[0013] Furthermore, the reinforcing plate is provided with a reinforcing rib running through it from front to back, and the reinforcing plate, the main plate, the guide plate and the rear cover plate all form a circumferentially closed cross section; and / or, the cross section of the reinforcing plate is wavy; and / or, the mounting bracket is a sheet metal part.
[0014] Furthermore, the rear floor assembly includes a rear floor body and a suspension bracket, the suspension bracket being fixed to the lower part of the rear floor body; the front part of the suspension bracket protrudes downward relative to the rear part of the suspension bracket; and the mounting bracket is assembled below the suspension bracket.
[0015] Furthermore, the rear protective structure of the vehicle body also includes a rear bulkhead and a collision block. The rear bulkhead is located on the rear side of the rear floor assembly, and the collision block is fixed on the rear side of the rear bulkhead and located behind the mounting bracket.
[0016] Furthermore, the collision block includes multiple irregular closed cavities extending in the left-right direction; the collision block also includes an upper upright portion and a lower upright portion staggered in the front-back direction, with the upper upright portion located behind the lower upright portion.
[0017] This application also discloses a vehicle including the rear protective structure described above.
[0018] The rear protective structure and vehicle of this application are equipped with mounting brackets. These brackets are fixed to both the electrical module and the rear floor assembly, with the electrical module suspended below the rear floor assembly via the mounting brackets. In a high-speed rear-end collision, the mounting brackets protect the electrical module, ensuring its integrity and preventing it from colliding with other vehicle components. The mounting brackets include a main board section and a downward-bent guide section on the front side of the main board section. This allows the mounting bracket to cause the electrical module to flip downwards along a preset trajectory during a rear-end collision, improving the reliability and safety of the vehicle in high-speed rear-end collisions.
[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description
[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.
[0021] Figure 1 This is a side view of one embodiment of the rear protective structure of the vehicle body according to this application.
[0022] Figure 2 yes Figure 1 A magnified view of a portion of the image.
[0023] Figure 3 yes Figure 1 A 3D view of the mounting brackets and electrical modules assembled into the rear floor assembly.
[0024] Figure 4 yes Figure 1 A 3D view of the mounting bracket and electrical modules after assembly.
[0025] Figure 5 yes Figure 4 Side view.
[0026] Figure 6 yes Figure 1 A 3D view of the mounting bracket.
[0027] Figure 7 yes Figure 6 A three-dimensional view of the central support body.
[0028] Figure 8 yes Figure 6 A three-dimensional view of the central reinforcing plate.
[0029] Figure 9 yes Figure 8 A stereoscopic view from another perspective.
[0030] Figure 10 yes Figure 1 A three-dimensional view showing a partial cross-section of the mounting bracket.
[0031] Figure 11 yes Figure 1 A 3D view of the electrical module.
[0032] Figure 12 yes Figure 1 A three-dimensional view showing the collision block and the rear panel being fixed together.
[0033] Figure 13 yes Figure 12 A 3D view of the collision blocks.
[0034] Figure 14 yes Figure 13 Side view.
[0035] Figure 15 yes Figure 1 A schematic diagram of the force flow transmission path of the rear protective structure of the vehicle body during a rear-end collision.
[0036] Explanation of reference numerals in the attached figures:
[0037] 1. Rear floor assembly; 11. Rear floor body; 111. Rear storage box; 12. Suspension bracket; 121. Connecting plate; 2. Electrical module; 21. Mounting platform; 3. Mounting bracket; 301. First mounting point; 302. Second mounting point; 303. Weight reduction hole; 31. Bracket body; 311. Main board; 312. Guide section; 313. Rear cover; 32. Reinforcing plate; 321. Main board reinforcement section; 322. Guide reinforcement section; 323. Rear cover reinforcement section; 324. Reinforcing rib; 4. Rear panel; 5. Rear bumper beam; 6. Rear subframe; 7. Collision block; 71. Irregular enclosed cavity; 72. Upper upright section; 73. Lower upright section; 8. Fasteners. 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] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0040] The embodiments described in this specification will now be described in detail. In this application, "front" refers to the direction in which the vehicle travels forward, "rear" refers to the direction in which the vehicle travels backward, and "left and right" refer to the width direction of the vehicle.
[0041] like Figure 1 and Figure 2 As shown, this application provides a rear protective structure for a vehicle body, including a rear floor assembly 1, an electrical module 2, a mounting bracket 3, a rear bulkhead 4, and a rear anti-collision beam 5.
[0042] The rear floor assembly 1 and the rear bumper beam 5 are respectively installed on the front and rear sides of the rear bulkhead 4. The mounting bracket 3 is fixed to the electrical module 2 and the rear floor assembly 1 respectively. The electrical module 2 is fixed to the mounting bracket 3, and the mounting bracket 3 is fixed to the rear floor assembly 1.
[0043] Electrical module 2 is a high-voltage electrical module. In the event of a rear-end collision, the mounting bracket 3 can rotate the electrical module 2 to avoid impact, thus protecting the electrical module 2 and ensuring its integrity during the rear-end collision. This prevents the electrical module 2 from colliding with other parts of the vehicle body, thereby avoiding the risk of short circuits and leakage caused by rigid collisions, and effectively improving the safety and reliability of the vehicle in a rear-end collision.
[0044] In this embodiment, both the mounting bracket 3 and the electrical module 2 are located below the rear floor assembly 1. The electrical module 2 is suspended below the rear floor assembly 1 by the mounting bracket 3, and in the event of a rear-end collision, the mounting bracket 3 causes the electrical module 2 to flip downwards and detach.
[0045] Furthermore, the rear protective structure of the vehicle body in this embodiment also includes a rear subframe 6. The rear subframe 6 is located in front of the mounting bracket 3 and the electrical module 2. In the event of a rear 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 forward and downward toward the rear subframe 6, thereby avoiding direct impact between the electrical module 2 and the rear subframe 6.
[0046] Please refer to the following at the same time Figure 3 The rear floor assembly 1 includes a rear floor body 11 and a suspension bracket 12. The rear part of the rear floor body 11 is connected to the rear panel 4, and the suspension bracket 12 is fixed to the lower part of the rear floor body 11. The mounting bracket 3 is assembled below the suspension bracket 12, and the electrical module 2 is assembled below the mounting bracket 3.
[0047] Specifically, in this embodiment, both the rear floor body 11 and the suspension bracket 12 are made of metal. The rear floor body 11 includes a rear storage box 111, and the suspension bracket 12 is fixed below the rear storage box 111. There are two suspension brackets 12, both of which are beam structures extending in the front-to-back direction, and are respectively located on the left and right sides of the bottom of the rear storage box 111. The interior of the suspension bracket 12 is hollow to reduce weight.
[0048] The middle and rear part of the suspension bracket 12 contacts and is welded to the bottom of the rear storage box 111, while the front part of the suspension bracket 12 is suspended. An upwardly extending connecting plate 121 is provided at the front end of the suspension bracket 12. The upper part of the connecting plate 121 contacts and is welded to the front part of the rear storage box 111 to reinforce the connection between the rear storage box 111 and the front part of the suspension bracket 12. It is understood that the specific shape of the suspension bracket 12 and its specific connection method with the rear floor body 11 can be flexibly designed according to the needs of different vehicle models, and this application does not impose any restrictions on this.
[0049] The bottom of the rear storage box 111 is roughly horizontal, and the front of the suspension bracket 12 protrudes downward relative to the rear of the suspension bracket 12. Thus, the front of both the mounting bracket 3 and the electrical module 2 are tilted downward, and in the event of a rear collision, the mounting bracket 3 causes the electrical module 2 to flip downward and detach.
[0050] like Figures 4 to 7 As shown, the mounting bracket 3 includes a bracket body 31. The bracket body 31 includes a main board portion 311, a guide portion 312, and a rear cover portion 313. The guide portion 312 bends downward from the front side of the main board portion 311, and the rear cover portion 313 bends downward from the rear side of the main board portion 311. The main board portion 311 is positioned above the electrical module 2, covering the upper side of the electrical module 2. The guide portion 312 is located on the front side of the electrical module 2, covering the front side of the electrical module 2. The rear cover portion 313 is located below the rear panel 4 and on the rear side of the electrical module 2, covering the rear side of the electrical module 2.
[0051] The mounting bracket 3, by setting the main board part 311, the guide part 312 and the rear cover part 313, respectively shields the upper, front and rear parts of the electrical module 2, forming a physical barrier between the electrical module 2 and other structures of the vehicle body, providing multi-directional protection for the electrical module 2 and reducing functional damage to the electrical module 2 during a collision.
[0052] In a rear-end collision, the guide portion 312 also contacts the rear side of the rear subframe 6 to slide forward and downward. Thus, by bending forward and downward, and ensuring that the guide portion 312 contacts the rear side of the rear subframe 6 first during a rear-end collision, it provides trajectory guidance for the subsequent movement of the mounting bracket 3 and the electrical module 2, preventing the mounting bracket 3 from jamming due to a rigid collision. Simultaneously, since the front parts of both the mounting bracket 3 and the electrical module 2 are inclined downward, it is more conducive to their downward flipping along a preset trajectory upon a rear-end collision, improving the smoothness and robustness of the mounting bracket 3 under complex collision conditions, and enhancing the overall structural reliability and safety.
[0053] Furthermore, please also refer to Figure 8 and Figure 9To enhance the overall strength of the mounting bracket 3, the mounting bracket 3 also includes a reinforcing plate 32. The reinforcing plate 32 is fixed to the bracket body 31 and includes a main board reinforcing part 321, a guide reinforcing part 322, and a rear cover reinforcing part 323. The main board reinforcing part 321, the guide reinforcing part 322, and the rear cover reinforcing part 323 are respectively provided corresponding to and cover the main board part 311, the guide part 312, and the rear cover part 313. In some cases, the reinforcing plate 32 may only reinforce one or both of the main board part 311, the guide part 312, and the rear cover part 313.
[0054] Please refer to the following at the same time Figure 10 The reinforcing plate 32 is provided with reinforcing ribs 324, which protrude upwards, so that the reinforcing plate 32 and the bracket body 31 form a circumferentially closed cross section. Thus, the mounting bracket 3 as a whole has high bending and torsional stiffness, effectively resisting impacts in the front-rear direction and providing better protection for the electrical module 2. In this embodiment, the reinforcing ribs 324 extend along the front-rear direction and penetrate the reinforcing plate 32, and the reinforcing plate 32, the main plate portion 311, the guide portion 312, and the rear cover portion 313 all form a circumferentially closed cross section. There are two reinforcing ribs 324, and the cross section of the reinforcing plate 32 perpendicular to the front-rear direction is wavy.
[0055] Specifically, in this embodiment, the mounting bracket 3 is a sheet metal part, which has good rigidity and strength. Both the bracket body 31 and the reinforcing plate 32 are made of metal and are welded together.
[0056] like Figure 6 and Figure 7 As shown, the mounting bracket 3 includes several first mounting points 301 and several second mounting points 302. Both the first mounting points 301 and the second mounting points 302 are located on the main board portion 311. The first mounting points 301 are used to connect to the rear floor assembly 1, and the second mounting points 302 are used to connect to the electrical module 2.
[0057] Several first mounting points 301 are disposed on the left and right edges of the main board 311 to cooperate with the suspension bracket 12. In this embodiment, there are four first mounting points 301, which are respectively disposed near the four corners of the main board 311, thereby improving the torsional rigidity of the connection between the mounting bracket 3 and the rear floor assembly 1 and avoiding the twisting or tearing of the mounting bracket 3 due to single-point force.
[0058] The first mounting point 301 is a U-shaped hole with its opening facing rearward. A corresponding opening is provided on the suspension bracket 12. Fasteners 8 pass through the first mounting point 301 and the suspension bracket 12 sequentially from bottom to top. The pre-tightening force of the fasteners 8 secures the mounting bracket 3 to the suspension bracket 12. When the vehicle body is subjected to a rear-end collision, the first mounting point 301, under the impact of the external impact force, can overcome the pre-tightening force of the fasteners 8 and detach from the rear floor assembly 1 through the rear opening of the U-shaped hole, causing the mounting bracket 3, along with the electrical module 2, to detach from the rear floor assembly 1.
[0059] It is understood that this application does not limit the specific form and shape of the first mounting point 301, as long as it can achieve the separation of the mounting bracket 3 from the rear floor assembly 1 in the event of an impact.
[0060] Furthermore, when assembling the mounting bracket 3 under the rear floor assembly 1, the preload of the fasteners 8 corresponding to the two front first mounting points 301 can be slightly less than the preload of the fasteners 8 corresponding to the two rear first mounting points 301. This allows the front of the mounting bracket 3 to detach from the rear floor assembly 1 more quickly in the event of a rear-end collision, facilitating the connection between the mounting bracket 3 and the electrical module 2. Figure 1 Rotating it counterclockwise downwards from a viewing angle helps to better protect electrical module 2.
[0061] Please refer to the following at the same time Figure 11 The second mounting point 302 is a circular through hole. The electrical module 2 is provided with mounting platforms 21 extending to the left, right, and rear sides, each with corresponding openings that mate with the second mounting point 302. Fasteners 8 pass through the mounting platforms 21 and the second mounting point 302 from bottom to top, 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.
[0062] There are four second mounting points 302 and four mounting platforms 21. Two of the second mounting points 302 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 arranged around the several second mounting points 302 to facilitate the U-shaped design of the first mounting points 301. Several weight-reducing holes 303 are also provided on the mounting bracket 3 to reduce weight.
[0063] When the vehicle suffers a rear-end collision, the mounting bracket 3 moves forward under impact. Since both the mounting bracket 3 and the front of the electrical module 2 are tilted downwards, and the front of the mounting bracket 3 has a downward-bending guide portion 312, the guide portion 312 contacts the rear subframe 6 and guides the mounting bracket 3 and electrical module 2 to move forward and downward, providing sufficient buffer time for the vehicle's controller to disconnect the power to the electrical module 2. When the mounting bracket 3 moves to a certain extent, it detaches from the rear floor assembly 1, causing the electrical module 2 to also detach from the vehicle body. This avoids severe damage to the electrical module 2 immediately after the rear-end collision, preventing functional failure and the risk of fire, thus improving safety.
[0064] According to one embodiment of this application, when the mounting bracket 3 contacts the rear subframe 6, since the reinforcing plate 32 is fixed above the bracket body 31, the guide reinforcement part 322 located at the front end of the reinforcing plate 32 directly contacts the rear subframe 6 and guides the movement trajectory of the mounting bracket 3 and the electrical module 2.
[0065] Furthermore, such as Figure 12 As shown, in some embodiments, the rear protective structure of the vehicle body also includes a collision block 7. The collision block 7 is located at the rear of the mounting bracket 3 and below the rear anti-collision beam 5. It can deform under impact, effectively absorb the energy of the collision, reduce the impact force on the mounting bracket 3, and create a safer buffer space for the electrical module 2.
[0066] Please refer to the following at the same time Figure 13 and Figure 14 The collision block 7 is fixed to the rear side of the rear bulkhead 4, including an upper upright portion 72 and a lower upright portion 73 staggered in the front-rear direction. The upper upright portion 72 is located behind the lower upright portion 73, achieving a tight fit with the rear bulkhead 4. The upper upright portion 72 and the lower upright portion 73 are respectively fixed to the rear bulkhead 4 by fasteners 8, further improving the connection strength between the collision block 7 and the rear bulkhead 4. In this way, the collision block 7 can locally reinforce the rear bulkhead 4 from the rear, improving the overall structural strength of the rear body protection structure of this application. At the same time, since the collision block 7 is located at the rear of the mounting bracket 3, it can guide and transfer the collision force to the mounting bracket 3 during a rear collision, facilitating the flipping and detachment of the mounting bracket 3.
[0067] The impact block 7 includes multiple irregularly shaped closed cavities 71 extending in the left-right direction. Under impact, these irregularly shaped closed cavities 71 can deform and wrinkle, significantly improving the energy absorption efficiency per unit volume. The lower part of the impact block 7 is located behind and close to the rear cover 313 and rear cover reinforcement 323 of the mounting bracket 3. This allows it to fully contact the mounting bracket 3 during a collision, pushing the mounting bracket 3 forward.
[0068] In this embodiment, the collision block 7 is an aluminum extrusion part, which is lightweight and facilitates lightweight design. In some cases, the collision block 7 can also be designed as an open-type plastic or cast part with multiple reinforcing ribs, or as a sheet metal reinforcing part with reinforcing ribs. The collision block 7 can also be designed to be welded and fixed to the rear panel 4.
[0069] like Figure 15 As shown, when the vehicle suffers a rear-end collision, the collision barrier first contacts the rear bumper beam 5. After the rear bumper beam 5 deforms, the collision barrier then contacts the collision block 7. The collision block 7 pushes the mounting bracket 3 forward. Since the front parts of both the mounting bracket 3 and the electrical module 2 are tilted downwards, and the front part of the mounting bracket 3 is provided with a downwardly bent guide part 312, the guide part 312 contacts the rear subframe 6 and guides the mounting bracket 3 and the electrical module 2 to move forward and downward, giving the vehicle's controller sufficient buffer time to disconnect the power to the electrical module 2. 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 also detach from the vehicle body. This avoids serious damage to the electrical module 2 in the short time immediately after the rear-end collision, which could lead to functional failure and fire risk, thus improving safety.
[0070] This application also provides a vehicle including the rear protective structure described above.
[0071] The rear protective structure and vehicle of this application include a mounting bracket 3, which is fixed to both the electrical module 2 and the rear floor assembly 1. The electrical module 2 is suspended below the rear floor assembly 1 via the mounting bracket 3. In the event of a high-speed rear-end collision, the mounting bracket 3 protects the electrical module 2, ensuring its integrity and preventing it from colliding with other vehicle components. The mounting bracket 3 includes a main board portion 311 and a guide portion 312 that bends downwards at the front of the main board portion 311. This allows the mounting bracket 3 to cause the electrical module 2 to flip downwards along a preset trajectory during a rear-end collision, improving the reliability and safety of the vehicle in a high-speed rear-end collision.
[0072] This application's rear-end protection structure and vehicle employ different protection strategies for the high-voltage electrical module in rear-end collisions at different speeds: at low to medium speeds, the rear-end collision force is minimal, and the basic rear structure of the vehicle body can provide good protection for the high-voltage electrical module, meeting safety requirements. In high-speed collisions, such as at speeds between 84 km / h and 100 km / h, the rear of the vehicle body incorporates an inducing rollover structure or protective structure to cause the high-voltage electrical module to roll over or detach, thus avoiding impact with the rear subframe and other structures in front, meeting the collision impact safety requirements for high-speed collisions. When the speed or impact exceeds a certain level, such as at speeds greater than 100 km / h, a power-off measure is implemented; therefore, even if the high-voltage electrical module rolls over or detaches, sufficient time is allowed for power-off. This application, by adopting a segmented rear-end collision protection strategy, significantly improves rear-end collision safety and effectively reduces injuries to vehicle occupants.
[0073] 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 protective structure for a vehicle body, characterized in that, include: The rear floor assembly, electrical module, and mounting bracket are provided. The electrical module is suspended below the rear floor assembly via the mounting bracket. The mounting bracket is fixed to both the electrical module and the rear floor assembly. The mounting bracket includes a bracket body and a reinforcing plate fixed to the bracket body. 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 is located above the electrical module, and the guide portion is located at the front side of the electrical module.
2. The vehicle body rear protection structure according to claim 1, characterized by The mounting bracket and the front of the electrical module are both inclined downwards; the main board covers the upper part of the electrical module, and the guide part covers the front side of the electrical module.
3. The vehicle body rear protection structure according to claim 1, characterized by The main board is provided with a plurality of first mounting points that are connected to the rear floor assembly. The plurality of first mounting points are located on the left and right sides of the main board and the first mounting points are U-shaped holes with the opening facing backward.
4. The rear body protection structure according to claim 3, characterized by The motherboard is also provided with a plurality of second mounting points that are connected to the electrical module; the plurality of first mounting points are located around the plurality of second mounting points.
5. The vehicle body rear protection structure according to claim 1, characterized by The rear protective structure of the vehicle body also includes a rear subframe, which is disposed in front of the mounting bracket and the electrical module; in the event of a rear collision, the guide portion is used to contact the rear side of the rear subframe to slide forward and downward toward the rear subframe.
6. The rear protective structure of the vehicle body according to claim 1, characterized in that, The bracket body also includes a rear cover portion that bends downward from the rear side of the main board portion, the rear cover portion shielding the rear side of the electrical module.
7. The rear body protection structure according to claim 6, characterized by The reinforcing plate includes a main board reinforcing part, a guide reinforcing part, and a rear cover reinforcing part, which are respectively provided corresponding to the main board part, the guide part, and the rear cover part.
8. The rear body protection structure according to claim 7, characterized by The reinforcing plate is provided with a reinforcing rib running through it from front to back. The reinforcing plate, the main plate, the guide plate and the rear cover plate all form a circumferentially closed cross section; and / or, the cross section of the reinforcing plate is wavy; and / or, the mounting bracket is a sheet metal part.
9. The vehicle body rear protection structure according to claim 2, characterized by The rear floor assembly includes a rear floor body and a suspension bracket, the suspension bracket being fixed to the lower part of the rear floor body; the front part of the suspension bracket protrudes downward relative to the rear part of the suspension bracket; the mounting bracket is assembled below the suspension bracket.
10. The vehicle body rear protection structure according to claim 1, characterized by The rear protective structure of the vehicle body also includes a rear bulkhead and a collision block. The rear bulkhead is located on the rear side of the rear floor assembly, and the collision block is fixed on the rear side of the rear bulkhead and located behind the mounting bracket.
11. The vehicle body rear protection structure according to claim 10, characterized by The collision block includes multiple irregular closed cavities that extend in the left-right direction; the collision block also includes an upper upright part and a lower upright part that are staggered in the front-back direction, with the upper upright part located behind the lower upright part.
12. A vehicle, characterized in that, Includes the rear protective structure of the vehicle body as described in any one of claims 1-11.