Rear anti-collision mechanism assembly and vehicle
By setting up a reinforced structure on the rear anti-collision beam of the rear anti-collision mechanism assembly, the engine is collided with the inclined surface of the reinforced structure, the deformation problem caused by the rear anti-collision beam hitting the engine is solved, and the effect of increasing the energy-absorbing space of the rear collision and improving the safety of the occupants is achieved.
Patent Information
- Application Number
- CN202422050226.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-22
AI Technical Summary
During the 50km/h tail rigid trolley obstacle collision, the rear anti-collision beam may hit the engine, causing the rear longitudinal beam to collapse and deformation and the passenger compartment to increase deformation, and the energy absorption effect is not ideal.
A rear collision mechanism assembly is designed. By setting a reinforcement structure on the rear collision beam, the engine is collided with the inclined surface of the reinforcement structure, causing the upper connection between the engine and the rear cross beam to be invalidated, and moving downward along the inclined surface of the reinforcement structure, thereby increasing the energy absorption space for rear collision.
By increasing the energy-absorbing space for rear collisions, the deformation of the passenger compartment is reduced and the safety of occupants in the vehicle is improved.
Smart Images
Figure CN222875931U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicles, in particular to a rear anti-collision mechanism assembly and a vehicle. Background Art
[0002] In some entry test evaluation systems, the 50km / h rear-end rigid trolley obstacle collision (hereinafter referred to as "50RR") presents unique challenges in protecting vehicle passengers, and it is necessary to evaluate the vehicle's ability to resist collision deformation during the collision.
[0003] During a 50RR collision, if the engine is too close to the rear anti-collision beam, the rear anti-collision beam will hit the engine in the early and middle stages of the collision, causing the rear longitudinal beam to collapse and deform in an unsatisfactory manner, and the energy absorption effect will be unsatisfactory, and the deformation of the passenger compartment will increase. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a rear anti-collision mechanism assembly, which increases the energy absorption space of the rear anti-collision beam collision, thereby reducing the deformation of the passenger compartment and improving the safety of the passengers in the vehicle.
[0005] According to the rear anti-collision mechanism assembly of the embodiment of the utility model, it includes: a rear anti-collision beam, a rear longitudinal beam, a rear cross beam and a reinforcement structure; the rear anti-collision beam is connected to the rear ends of the two rear longitudinal beams, the rear cross beam is connected between the two rear longitudinal beams and on the front side of the rear anti-collision beam, the rear cross beam is connected to an engine, the strength of the upper connection between the engine and the rear cross beam is less than the strength of the lower connection, and a distance is left between the bottom rear side of the engine and the vehicle chassis; the reinforcement structure is connected to the front side of the rear anti-collision beam, the upper part of the engine is opposite to the reinforcement structure along the front and rear direction of the vehicle, and the front part of the reinforcement structure is provided with an inclined surface inclined from front to rear along the up and down direction of the vehicle. When the rear end of the vehicle is hit, the inclined surface collides with the engine to make the upper connection between the engine and the rear cross beam invalid and the engine moves downward.
[0006] According to the rear anti-collision mechanism assembly of the embodiment of the utility model, a reinforcement structure is provided on the rear anti-collision beam. When the rear anti-collision beam is hit, the reinforcement structure collides with the engine, causing failure of the upper connection between the engine and the rear cross beam. The engine moves downward along the inclined surface of the reinforcement structure, thereby increasing the energy absorption space of the rear collision and reducing the deformation of the passenger compartment.
[0007] According to the rear anti-collision mechanism assembly of the embodiment of the utility model, the height of the reinforcement structure is higher than the height of the engine, and the upper part of the engine is directly opposite to at least part of the reinforcement structure along the front-rear direction of the vehicle.
[0008] According to the rear anti-collision mechanism assembly of the embodiment of the utility model, a mounting groove is provided on the front side of the rear anti-collision beam, the mounting groove is provided with an opening opened toward the engine, and the reinforcing structure is connected to the mounting groove and extends forward along the opening.
[0009] According to the rear anti-collision mechanism assembly of the embodiment of the utility model, the reinforcement structure includes a reinforcement portion, and when the reinforcement structure is connected to the installation groove, the reinforcement portion is located in the installation groove.
[0010] According to the rear anti-collision mechanism assembly of the embodiment of the utility model, the reinforcement portion is located in the middle position of the installation groove along the up-down direction of the vehicle.
[0011] According to the rear anti-collision mechanism assembly of the embodiment of the utility model, the reinforcement structure includes at least two first reinforcement plates spaced apart from each other up and down, and the anti-collision beam includes at least two second reinforcement plates spaced apart from each other up and down, the reinforcement portion is connected between the two first reinforcement plates, and the two first reinforcement plates connected by the reinforcement portion are directly opposite to two of the second reinforcement plates along the front and rear direction of the vehicle.
[0012] According to the rear anti-collision mechanism assembly of the embodiment of the utility model, part of the first reinforcement plate and part of the second reinforcement plate are staggered in distribution.
[0013] According to the rear anti-collision mechanism assembly of the embodiment of the utility model, it also includes a mounting member, which includes a first connecting portion and a second connecting portion. The mounting member is connected to the engine through the second connecting portion and is connected to the rear cross beam through the first connecting portion.
[0014] According to the rear anti-collision mechanism assembly of the embodiment of the utility model, the first connecting part includes an upper connecting surface and a lower connecting surface, the upper connecting surface is connected to the rear side of the rear cross beam to form an upper connection between the engine and the rear cross beam, and the lower connecting surface is connected to the bottom of the rear cross beam to form a lower connection between the engine and the rear cross beam.
[0015] The embodiment of the utility model also discloses a vehicle, comprising the above-mentioned rear anti-collision mechanism assembly.
[0016] The advantages of the vehicle compared to the prior art are the same as the advantages of the anti-collision mechanism assembly compared to the prior art, which will not be elaborated here.
[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0019] Figure 1 It is a structural schematic diagram of the rear anti-collision mechanism assembly of an embodiment of the utility model;
[0020] Figure 2 is a schematic diagram of the rear anti-collision mechanism assembly of the embodiment of the utility model from another angle;
[0021] Figure 3 This is a schematic diagram of the structure of the rear anti-collision beam and the reinforcement structure in the embodiment of the utility model;
[0022] Figure 4 It is a cross-sectional schematic diagram of the rear anti-collision beam and the reinforcement structure of an embodiment of the utility model;
[0023] Figure 5 This is a schematic diagram of the structure of the connection between the mounting member and the rear cross beam of the embodiment of the utility model;
[0024] Figure 6 It is a schematic structural diagram of another angle of connection between the mounting member and the rear cross beam of an embodiment of the utility model;
[0025] Figure 7 It is a cross-sectional schematic diagram of the connection between the mounting member of the embodiment of the utility model and the engine and the rear cross beam.
[0026] Reference numerals:
[0027] Rear anti-collision mechanism assembly 100,
[0028] Rear anti-collision beam 1, mounting groove 11, open mouth 111, second reinforcing plate 12, third reinforcing plate 13, fourth reinforcing plate 14, rear longitudinal beam 2, rear cross beam 3, reinforcing structure 4, inclined surface 41, first reinforcing plate 42, reinforcing portion 43, engine 5, mounting part 6, second connecting portion 61, connecting hole 611, first connecting portion 62, upper connecting surface 621, lower connecting surface 622, connecting shaft 7. DETAILED DESCRIPTION
[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] Unless otherwise specified, the front-to-back direction in the present application is the longitudinal direction of the vehicle, that is, the X direction; the left-right direction is the lateral direction of the vehicle, that is, the Y direction; and the up-down direction is the vertical direction of the vehicle, that is, the Z direction.
[0033] Reference below Figure 1-Figure 7 The rear anti-collision mechanism assembly 100 according to an embodiment of the utility model is described. By setting a reinforcing structure 4 on the rear anti-collision beam 1, when the rear anti-collision beam 1 is hit, the reinforcing structure 4 will collide with the engine 5, causing the upper connection between the engine 5 and the rear cross beam 3 to fail, and the engine 5 will move downward along the inclined surface 41 of the reinforcing structure 4, thereby increasing the energy absorption space of the rear collision, thereby reducing the deformation of the passenger compartment.
[0034] like Figure 1-Figure 7 As shown, a rear anti-collision mechanism assembly 100 according to an embodiment of the utility model includes: a rear anti-collision beam 1, a rear longitudinal beam 2, a rear cross beam 3 and a reinforcement structure 4.
[0035] Among them, the rear anti-collision beam 1 is connected to the rear ends of the two rear longitudinal beams 2, the rear cross beam 3 is connected between the two rear longitudinal beams 2 and on the front side of the rear anti-collision beam 1, the rear cross beam 3 is connected to the engine 5, the strength of the upper connection between the engine 5 and the rear cross beam 3 is less than the strength of the lower connection, and a distance is left between the bottom rear side of the engine 5 and the vehicle chassis; the reinforcement structure 4 is connected to the front side of the rear anti-collision beam 1, the upper part of the engine 5 is opposite to the reinforcement structure 4 along the front and rear direction of the vehicle, and the front part of the reinforcement structure 4 is provided with an inclined surface 41 inclined from front to rear along the up and down direction of the vehicle. When the rear end of the vehicle is collided, the inclined surface 41 collides with the engine 5, causing the upper connection between the engine 5 and the rear cross beam 3 to fail and the engine 5 to move downward.
[0036] In practice, the engine 5 of the embodiment of the utility model is located at the rear side of the passenger compartment of the vehicle, and there is a distance between the engine 5 and the rear anti-collision beam 1, such as the distance can be set to 190mm-192mm; of course, it can also be other suitable distances, and the distance can be designed according to the actual conditions of different vehicles.
[0037] In addition, the engine 5 is not only connected to the rear cross beam 3, but also the bottom front side of the engine 5 is connected to both sides of the vehicle chassis. However, there is a distance between the bottom rear side of the engine 5 and the vehicle chassis. During design, the strength of the upper connection between the engine 5 and the rear cross beam 3 is designed to be smaller than the strength of the lower connection between the engine 5 and the rear cross beam 3. For example, the engine 5 and the upper part of the rear cross beam 3 are connected by a weld, but the engine 5 and the lower part of the rear cross beam 3 are connected by a weld and a connecting piece. In this case, the upper part may fail under a large collision force. Then, when the upper part of the connection position between the engine 5 and the rear cross beam 3 fails locally, the distance between the bottom rear side of the engine 5 and the vehicle chassis can provide space for the engine 5 to move downward.
[0038] Specifically, a reinforcement structure 4 is provided on the front side of the rear anti-collision beam 1, and the reinforcement structure 4 can improve the strength of the rear anti-collision beam 1, thereby reducing deformation caused by collision. When the rear anti-collision beam 1 of the vehicle is collided, the rear longitudinal beam 2 of the vehicle collapses and deforms. Since the upper part of the engine 5 is opposite to the reinforcement structure 4 in the front-to-rear direction of the vehicle, the reinforcement structure 4 collides with the upper part of the engine 5 first at this time, and the surface where the reinforcement structure 4 collides with the engine 5 is an inclined surface 41, and the inclined surface 41 is inclined from front to rear in the up-down direction of the vehicle. The connection between the engine 5 and the upper part of the rear cross beam 3 can fail when the engine 5 is hit, and the engine 5 can move downward along the inclined surface 41, thereby increasing the energy absorption space, and also increasing the energy absorption space, providing a better buffer for the rear collision of the entire vehicle.
[0039] Therefore, the rear anti-collision mechanism assembly 100 of the embodiment of the utility model improves the anti-collision effect of the rear anti-collision beam 1, increases the energy absorption space of the rear collision, and thus reduces the deformation of the passenger compartment.
[0040] In some embodiments, the height of the reinforcing structure 4 is higher than the height of the engine 5 , and the upper portion of the engine 5 is directly opposite to at least a portion of the reinforcing structure 4 along the front-rear direction of the vehicle.
[0041] Specifically, the inclined surface 41 is inclined from front to rear along the vertical direction of the vehicle, so the distance between the upper part of the inclined surface 41 and the engine 5 in the front-to-back direction is smaller, that is, when the rear part of the anti-collision beam is hit, the position with a smaller front-to-back distance between the inclined surface 41 and the upper part of the engine 5 contacts the engine 5 first, thereby inducing the failure of the connection between the engine 5 and the upper part of the rear cross beam 3 more quickly, so that the engine 5 moves downward, and then after the engine 5 falls, the upper part of the engine 5 is directly opposite to at least part of the reinforcing structure 4 along the front-to-back direction of the vehicle, and the engine 5 can be away from or even staggered with the rear anti-collision beam 1 along the vertical direction of the vehicle, thereby increasing the space on the front side of the rear anti-collision beam 1 after the collision, thereby increasing the energy absorption space and the buffer space, and providing a buffer for the rear collision of the entire vehicle.
[0042] For example, if the extension length of the rear part of the engine 5 in the vehicle width direction is the same as the length of the reinforcing structure 4 in the vehicle width direction, or is slightly smaller than the extension length of the reinforcing structure 4 in the vehicle width direction, the force on the engine 5 in the vehicle width direction is balanced under the collision of the reinforcing structure 4, so that the force on the upper connection between the engine 5 and the rear cross beam 3 can be evenly distributed. When the reinforcing structure 4 hits the engine 5 and applies a forward force to the engine 5, the upper connection between the engine 5 and the rear cross beam 3 can be detached in the vehicle width direction, which is more conducive to increasing the energy absorption space of the rear anti-collision beam 1.
[0043] In some embodiments, a mounting groove 11 is provided at the front side of the rear anti-collision beam 1 . The mounting groove 11 is provided with an opening 111 which opens toward the engine 5 . The reinforcement structure 4 is connected to the mounting groove 11 and extends forward along the opening 111 .
[0044] Specifically, the rear anti-collision beam 1 is provided with a mounting groove 11, and the reinforcing structure 4 is installed in the mounting groove 11, which can reduce the space occupied by the reinforcing structure 4 on the front side of the rear anti-collision beam 1, and at the same time can reduce the weight of the rear anti-collision beam 1 and enhance the strength of the rear anti-collision beam 1. At least part of the reinforcing structure 4 extends out of the mounting groove 11, and the reinforcing structure 4 is opposite to at least part of the engine 5. When the rear anti-collision beam 1 is collided, the reinforcing structure 4 can first collide with the engine 5 to induce the engine 5 to move downward.
[0045] Furthermore, the mounting groove 11 is provided on the rear anti-collision beam 1 and partially extends in the width direction of the vehicle, such as being provided in the middle of the front side of the rear anti-collision beam 1, so that the reinforcing structure 4 connected at the mounting groove 11 can be opposite to the engine 5. A plurality of hollow cavities are provided in the rear anti-collision beam 1, and a plurality of hollow cavities are provided in the reinforcing structure 4, which can further reduce the overall weight of the rear anti-collision beam 1 while enhancing the strength of the rear anti-collision beam 1.
[0046] In some embodiments, the reinforcement structure 4 includes a reinforcement portion 43 . When the reinforcement structure 4 is connected to the mounting groove 11 , the reinforcement portion 43 is located in the mounting groove 11 .
[0047] Among them, the reinforcing portion 43 of the reinforcing structure 4 can improve the impact strength of the rear anti-collision beam 1. The reinforcing portion 43 is arranged in the mounting groove 11, and the strength at the mounting groove 11 is improved, thereby preventing the rear anti-collision beam 1 from being deformed too much at the mounting groove 11. In addition, the extension length of the reinforcing portion 43 along the vehicle width direction is the same as the extension length of the mounting groove 11 in the vehicle width direction, that is, the reinforcing portion 43 can reinforce all positions where the mounting groove 11 extends along the vehicle width direction.
[0048] Reference Figure 4 As shown, the reinforcing structure 4 is a triangular prism, and one side of the triangular prism facing the engine 5 is an inclined surface 41. The lower part of the inclined surface 41 is located in the mounting groove 11 and at the bottom of the mounting groove 11, and the upper part of the inclined surface 41 extends out of the mounting groove 11. The reinforcing portion 43 is constructed as a rice-shaped structure, which can improve the stability of the reinforcing portion 43 and improve the reinforcement effect.
[0049] In some embodiments, the reinforcement portion 43 is located in the middle of the mounting slot 11 along the up-down direction of the vehicle.
[0050] In practice, the reinforcing portion 43 is located in the middle of the mounting groove 11 in the up-down direction of the vehicle. When the reinforcing portion 43 collides with the engine 5, the position of the reinforcing portion 43 improves the force uniformity of the collision between the reinforcing structure 4 and the engine 5. For example, when the inclined surface 41 of the reinforcing structure 4 collides with the engine 5, the force can be transmitted to the reinforcing structure 4 and to the reinforcing portion 43 in the middle, so that the reinforcing portion 43 has a better effect of resisting collision.
[0051] In some embodiments, the reinforcement structure 4 includes at least two first reinforcement plates 42 spaced apart from each other up and down, and the anti-collision beam includes at least two second reinforcement plates 12 spaced apart from each other up and down, the reinforcement portion 43 is connected between the two first reinforcement plates 42, and the two first reinforcement plates 42 connected by the reinforcement portion 43 are directly opposite to two of the second reinforcement plates 12 along the front and rear direction of the vehicle.
[0052] In practice, the reinforcement portion 43 is located between the two first reinforcement plates 42, and the first reinforcement plate 42 is directly opposite to the second reinforcement plate 12. When the rear of the vehicle is hit, the reinforcement structure 4 hits the engine 5, and the engine 5 exerts a backward force on the reinforcement structure 4. This force can be transmitted to the second reinforcement plate 12 along the first reinforcement plate 42, and at the same time, when the reinforcement structure 4 hits the engine 5, there is a better support effect between the two.
[0053] Furthermore, both the rear anti-collision beam 1 and the reinforcement structure 4 are provided with cavities, which can reduce the weight of the entire rear anti-collision beam 1 and the reinforcement structure 4 after they are connected. The second reinforcement plate 12 separates the cavity in the rear anti-collision beam 1 into a plurality of sub-cavities. A third reinforcement plate 13 is provided in the upper sub-cavity of the rear anti-collision beam 1, and a fourth reinforcement plate 14 is provided in the lower sub-cavity of the rear anti-collision beam 1. The third reinforcement plate 13 extends obliquely from rear to front along the up-down direction of the vehicle, and the fourth reinforcement plate 14 is inclined from front to rear along the up-down direction of the vehicle, that is, the third reinforcement plate 13 and the fourth reinforcement plate 14 are inclined in opposite directions. When the rear anti-collision beam 1 of the vehicle is collided, the reinforcement structure 4 collides with the engine 5. While the reinforcement structure 4 applies a forward force to the engine 5, the engine 5 also applies a backward force to the reinforcement structure 4. At this time, the force can be transmitted to the second reinforcement plate 12 along the first reinforcement plate 42 inside the reinforcement structure 4, and can also be transmitted to the third reinforcement plate 13 and the fourth reinforcement plate 14 through the first reinforcement plate 42, effectively dispersing the force and improving the buffering effect of the rear anti-collision beam 1.
[0054] In some embodiments, a portion of the first reinforcing plates 42 and a portion of the second reinforcing plates 12 are staggered in distribution.
[0055] In practice, two first reinforcing plates 42 among the multiple first reinforcing plates 42 are directly opposite to the two second reinforcing plates 12 in the front-to-back direction, and the other first reinforcing plates 42 among the multiple first reinforcing plates 42 are staggered with the two second reinforcing plates 12 at this time, so as to improve the strength of the reinforcing structure 4 and facilitate the reasonable dispersion of the collision force between the reinforcing structure 4 and the engine 5 to the multiple first reinforcing plates 42.
[0056] In some embodiments, the rear anti-collision mechanism assembly 100 also includes a mounting member 6 , which includes a first connecting portion 62 and a second connecting portion 61 . The mounting member 6 is connected to the engine 5 via the second connecting portion 61 , and is connected to the rear cross beam 3 via the first connecting portion 62 .
[0057] In practice, the mounting member 6 connects the engine 5 to the rear cross beam 3, the second connecting portion 61 of the mounting member 6 is constructed as two connecting ears, each connecting ear is provided with a connecting hole 611, the engine 5 includes a connecting sleeve, the connecting shaft 7 passes through the connecting sleeve of the engine 5 and connects the connecting shaft 7 to the two connecting ears, so that the engine 5 is connected to the mounting member 6, and the other side of the mounting member 6 is also connected to the rear cross beam 3, so that the mounting member 6 connects the engine 5 to the rear cross beam 3.
[0058] Furthermore, after the mounting member 6 is connected to the rear cross beam 3, the connecting ear is inclined toward the rear and downward direction along the rear cross beam 3, thereby facilitating the connection between the engine 5 and the rear cross beam 3. When the engine 5 is hit forward by the reinforced structure 4, the bottom of the connecting ear has a forward force, and the top of the connecting ear has a backward force, that is, a force that separates from the rear cross beam 3, thereby making the upper connection between the mounting member 6 and the rear cross beam 3 more likely to fail, which is beneficial to the downward movement of the engine 5 and leaves more energy absorption space.
[0059] In some embodiments, the first connecting portion 62 includes an upper connecting surface 621 and a lower connecting surface 622, the upper connecting surface 621 is connected to the rear side of the rear beam 3 to form an upper connection between the engine 5 and the rear beam 3, and the lower connecting surface 622 is connected to the bottom of the rear beam 3 to form a lower connection between the engine 5 and the rear beam 3.
[0060] In practice, the rear cross beam 3 is a cubic structure, the rear side surface of the rear cross beam 3 is connected to the upper connecting surface 621 of the mounting member 6, and the lower connecting surface 622 of the mounting member 6 is connected to the bottom surface of the rear cross beam 3, that is, the upper connecting surface 621 is connected to the rear side surface of the rear cross beam 3 by a weld, and after the lower connecting surface 622 is connected to the bottom surface of the rear cross beam 3 by a weld, it is also connected by a plurality of bolts, thereby ensuring the reliability of the connection between the lower connecting surface 622 and the bottom surface of the rear cross beam 3. Therefore, after the mounting member 6 is separated from the rear side surface of the rear cross beam 3, the mounting member 6 and the bottom surface of the rear cross beam 3 are still connected, so that the mounting member 6 can rotate and the engine 5 can move downward when there is a forward force acting on the engine 5.
[0061] The utility model embodiment also discloses a vehicle, including the above-mentioned rear anti-collision mechanism assembly 100, by arranging a reinforcement structure 4 on the rear anti-collision beam 1, when the rear anti-collision beam 1 is hit, the reinforcement structure 4 collides with the engine 5, so that the upper connection between the engine 5 and the rear cross beam 3 fails, and the engine 5 moves downward along the inclined surface 41 of the reinforcement structure 4, thereby increasing the energy absorption space of the rear collision, reducing the deformation of the passenger compartment, and improving the safety of vehicle driving.
[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0063] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A rear anti-collision mechanism assembly, characterized in that: include: A rear anti-collision beam and a rear longitudinal beam, wherein the rear anti-collision beam is connected to the rear ends of the two rear longitudinal beams; A rear cross beam, the rear cross beam is connected between the two rear longitudinal beams and in front of the rear anti-collision beam, the rear cross beam is connected to an engine, the strength of the upper connection between the engine and the rear cross beam is less than the strength of the lower connection, and a distance is left between the bottom rear side of the engine and the vehicle chassis; A reinforcing structure is connected to the front side of the rear anti-collision beam, the upper part of the engine is opposite to the reinforcing structure along the front-to-back direction of the vehicle, and the front part of the reinforcing structure is provided with an inclined surface inclined from front to back along the up-down direction of the vehicle. When the rear end of the vehicle is hit, the inclined surface collides with the engine, causing the connection between the engine and the upper part of the rear beam to fail and the engine to move downward.
2. The rear anti-collision mechanism assembly according to claim 1, characterized in that: The height of the reinforcement structure is higher than the height of the engine, and the upper portion of the engine is directly opposite to at least a portion of the reinforcement structure along the front-rear direction of the vehicle.
3. The rear anti-collision mechanism assembly according to claim 1, characterized in that: A mounting groove is provided at the front side of the rear anti-collision beam, and the mounting groove is provided with an opening opening toward the engine. The reinforcement structure is connected to the mounting groove and extends forward along the opening opening.
4. The rear anti-collision mechanism assembly according to claim 3, characterized in that: The reinforcement structure includes a reinforcement portion. When the reinforcement structure is connected to the installation groove, the reinforcement portion is located in the installation groove.
5. The rear anti-collision mechanism assembly according to claim 4, characterized in that: The reinforcement portion is located at a middle position of the mounting groove along a vertical direction of the vehicle.
6. The rear anti-collision mechanism assembly according to claim 4, characterized in that: The reinforcement structure includes at least two first reinforcement plates spaced apart from each other up and down, and the anti-collision beam includes at least two second reinforcement plates spaced apart from each other up and down, the reinforcement portion is connected between the two first reinforcement plates, and the two first reinforcement plates connected by the reinforcement portion are directly opposite to two of the second reinforcement plates one by one along the front and rear direction of the vehicle.
7. The rear anti-collision mechanism assembly according to claim 6, characterized in that: Part of the first reinforcing plates and part of the second reinforcing plates are staggered.
8. The rear anti-collision mechanism assembly according to claim 1, characterized in that: It also includes a mounting member, which includes a first connecting portion and a second connecting portion. The mounting member is connected to the engine through the second connecting portion and is connected to the rear cross beam through the first connecting portion.
9. The rear anti-collision mechanism assembly according to claim 8, characterized in that: The first connecting portion includes an upper connecting surface and a lower connecting surface, the upper connecting surface is connected to the rear side of the rear cross beam to form an upper connection between the engine and the rear cross beam, and the lower connecting surface is connected to the bottom of the rear cross beam to form a lower connection between the engine and the rear cross beam.
10. A vehicle, characterized in that: It comprises the rear anti-collision mechanism assembly as described in any one of claims 1 to 9.