Rear side members and vehicle

Abstract

The application relates to the technical field of vehicles and discloses a rear longitudinal beam and a vehicle. The rear longitudinal beam comprises a rear longitudinal beam body and a guiding assembly. The guiding assembly comprises at least one bending-inducing structure. The guiding assembly is connected with the rear longitudinal beam body and is configured to guide the rear longitudinal beam body to bend at the bending-inducing structure when the rear longitudinal beam body is subjected to external force. The rear longitudinal beam and the vehicle provided by the application avoid extrusion of the CDU when the rear longitudinal beam deforms, and the safety factor of the vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a rear longitudinal beam and a vehicle. Background Technology

[0002] Plug-in hybrid electric vehicles have advantages such as low cost, low fuel consumption, low emissions, and high power output.

[0003] Currently, hybrid vehicles are generally upgraded based on traditional fuel vehicle platforms and do not have a reserved installation location for CDU (Conversion Distribution Unit, high-voltage electronic control module). The CDU is usually placed on the rear floor of the trunk.

[0004] However, in this arrangement, the CDU is located between the two rear longitudinal beams. When the rear of the car is impacted, the rear longitudinal beams will deform and compress the CDU, posing a significant electrical safety risk. Summary of the Invention

[0005] In view of this, this application provides a rear longitudinal beam and a vehicle that avoids compression of the CDU when the rear longitudinal beam deforms, thereby improving the safety factor of the vehicle.

[0006] Specifically, the embodiments of this application include the following technical solutions:

[0007] The first aspect of this application provides a rear longitudinal beam for use in a vehicle, the rear longitudinal beam including a rear longitudinal beam body and a guide assembly;

[0008] The guiding component includes at least one bending induction structure, the guiding component is connected to the rear longitudinal beam body, and is configured to guide the rear longitudinal beam body to bend at the bending induction structure when the rear longitudinal beam body is subjected to an external force.

[0009] In one implementation of this application, the number of bending structures is two, including a first bending structure and a second bending structure;

[0010] The guiding component includes a first reinforcing plate, at least a portion of which is attached to the rear longitudinal beam body, and the first bending structure and the second bending structure are arranged at intervals along the length direction of the first reinforcing plate.

[0011] Alternatively, the guiding assembly may further include a second reinforcing plate, at least a portion of which is attached to the rear longitudinal beam body and spaced apart from the first reinforcing plate. The gap between the first and second reinforcing plates forms the first bending structure, and the second bending structure is located on the side of the first reinforcing plate closer to the second reinforcing plate.

[0012] In one implementation of this application, the bending direction of the rear longitudinal beam body at the first bending structure is opposite to the bending direction of the rear longitudinal beam body at the second bending structure.

[0013] In one implementation of this application, the second bending structure includes at least one opening, which is located at the edge of the first reinforcing plate along the length direction.

[0014] When there are multiple openings, the multiple openings are arranged at intervals along the length direction.

[0015] In one implementation of this application, the rear longitudinal beam body includes a protruding section and a straight section connected thereto. The protruding section protrudes from the surface of the rear longitudinal beam body away from the first reinforcing plate in a direction away from the first reinforcing plate.

[0016] The connection point between the protruding segment and the straight segment is located in the length direction, which corresponds to the position of the second bending structure in the length direction.

[0017] In one implementation of this application, the rear longitudinal beam body has a U-shaped cross-section perpendicular to the length direction, and there is a cavity between the rear longitudinal beam body and the first reinforcing plate.

[0018] In one implementation of this application, the cross-section of the first reinforcing plate along the length direction is U-shaped, and the opening direction of the first reinforcing plate faces the rear longitudinal beam body.

[0019] The inner wall of the rear longitudinal beam body is connected to the outer wall of the first reinforcing plate.

[0020] In one implementation of this application, the guiding component further includes a reinforcing part located between the inner wall of the rear longitudinal beam body and the outer wall of the first reinforcing plate, and connected to or abutting against the inner wall and the outer wall respectively.

[0021] The reinforcing part is located on the side of the first reinforcing plate away from the first bending structure.

[0022] A second aspect of this application provides a vehicle including the aforementioned rear longitudinal beam.

[0023] In one implementation of the embodiments of this application,

[0024] The number of rear longitudinal beams is two, and they are arranged at intervals along the width direction of the vehicle.

[0025] The vehicle also includes a high-voltage electronic control module, which is located between the two rear longitudinal beams and on the side of the rear longitudinal beam where the bending induction structure is provided.

[0026] The beneficial effects of the technical solutions provided in this application include at least the following:

[0027] The rear longitudinal beam and vehicle provided in this application embodiment, by setting a guide component on the rear longitudinal beam body, cause the rear longitudinal beam to deform at the bending position when subjected to external impact force, and control the bending position of the rear longitudinal beam to be as far away from the arrangement position of the CDU as possible, so as to avoid the rear longitudinal beam squeezing the CDU when it deforms. Compared with the traditional vehicle rear longitudinal beam, the bending position is controllable, which can meet the safety of the CDU under different vehicle models. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A partial exploded view of the rear longitudinal beam body provided in an embodiment of this application is shown;

[0030] Figure 2 An exploded view of the rear longitudinal beam provided in an embodiment of this application is shown;

[0031] Figure 3 A schematic diagram of the structure of the rear longitudinal beam provided in an embodiment of this application is shown;

[0032] Figure 4 A partially enlarged view of the rear longitudinal beam body provided in an embodiment of this application is shown;

[0033] Figure 5 A schematic diagram of the structure of the first reinforcing plate provided in an embodiment of this application is shown.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Rear longitudinal beam body; 11. Protruding section; 12. Straight section; 13. Second plate part; 14. Second connecting part; 15. First body; 16. Second body;

[0036] 2. Guiding component; 21. Bending structure; 211. First bending structure; 212. Second bending structure; 2122. Opening; 23. First reinforcing plate; 231. First plate body; 232. First connecting part; 24. Second reinforcing plate; 25. Reinforcing part. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. To make the technical solutions and advantages of this application clearer, the rear longitudinal beam and vehicle, etc., will be described in detail below with reference to the accompanying drawings.

[0038] Pure electric vehicles suffer from technical problems such as slow charging and short battery range, while plug-in hybrid electric vehicles effectively solve the range problem of pure electric vehicles and combine traditional power systems with pure electric power systems, making up for their respective disadvantages and having advantages such as low cost, low fuel consumption, low emissions, and high power output.

[0039] Currently, hybrid vehicles are generally upgraded based on traditional fuel vehicle platforms and do not have a reserved installation location for CDU. The CDU is usually placed on the rear floor of the larger trunk, between the two rear longitudinal beams, on the side near the rear of the vehicle.

[0040] When the rear longitudinal beam is impacted, it deforms towards the inside of the vehicle under the impact force, which will compress the CDU between the two rear longitudinal beams. Since the CDU is a high-voltage component, there is a risk of short circuit and leakage when it is compressed, which reduces the safety factor of the whole vehicle.

[0041] In response, this application provides a rear longitudinal beam, applicable to vehicles, such as... Figure 1 As shown, the rear longitudinal beam includes a rear longitudinal beam body 1 and a guide assembly 2; the guide assembly 2 includes at least one bending induction structure 21, the guide assembly 2 is connected to the rear longitudinal beam body 1, and is configured to guide the rear longitudinal beam body 1 to bend at the bending induction structure 21 when the rear longitudinal beam body 1 is subjected to an external force.

[0042] In the rear longitudinal beam provided in this application embodiment, by setting a guide component 2 on the rear longitudinal beam body 1, the rear longitudinal beam deforms at the bending structure 21 when subjected to external impact force, controlling the bending position of the rear longitudinal beam to be as far away from the arrangement position of the CDU as possible, avoiding the compression of the CDU when the rear longitudinal beam deforms. Compared with the traditional vehicle rear longitudinal beam, the bending position is controllable, which can meet the safety requirements of the CDU under different vehicle models.

[0043] It should be noted that there are two rear longitudinal beams in the vehicle, located on both sides of the frame along the width direction.

[0044] In some embodiments, the CDU is located inside the rear longitudinal beam and close to the end of the rear longitudinal beam body 1 along the length direction. The aforementioned bending induction structure 21 can be set at a position away from the end of the rear longitudinal beam body 1 to control the deformation position of the rear longitudinal beam body 1 away from the CDU, so as to avoid the rear longitudinal beam from squeezing the CDU when subjected to impact force.

[0045] Furthermore, the bending direction of the rear longitudinal beam body 1 at the bending structure 21 can be towards the outside of the vehicle, that is, away from the arrangement position of the CDU on the inside of the rear longitudinal beam body 1, so that the bent rear longitudinal beam body 1 is away from the CDU, further improving the safety factor of the vehicle.

[0046] In addition, the fuel tank in the vehicle is generally located on the inner side of the rear longitudinal beam. By setting the guide component 2 provided in this application embodiment, the deformation position of the rear longitudinal beam body 1 can be controlled to avoid the location of the fuel tank, so as to prevent the fuel tank from being squeezed when the vehicle is subjected to impact force, avoid fuel tank damage and oil leakage, and improve vehicle safety.

[0047] To prevent excessive deformation of the rear longitudinal beam body 1 under external impact force, in one implementation of this application embodiment, such as... Figure 2 As shown, there can be two bending structures, including a first bending structure 211 and a second bending structure 212; the guide component 2 includes a first reinforcing plate 23, at least a portion of which is attached to the rear longitudinal beam body 1, and the first bending structure 211 and the second bending structure 212 are arranged at intervals along the length direction of the first reinforcing plate 23.

[0048] The rear longitudinal beam provided in this application embodiment forms two bending points on the rear longitudinal beam body 1 by setting a first bending structure 211 and a second bending structure 212 at intervals on the first reinforcing plate 23. This causes the rear longitudinal beam body 1 to deform at the first bending structure 211 and the second bending structure 212 respectively when subjected to impact force, distributing the impact force to the two bending points. This helps to prevent excessive deformation of the rear longitudinal beam body 1 when the vehicle is subjected to a large impact force, thus ensuring the integrity of the vehicle structure.

[0049] Furthermore, by setting the first reinforcing plate 23, the structural strength of the rear longitudinal beam body 1, excluding the bending induction structure 21, is also reinforced.

[0050] In addition to the method of simultaneously providing a first bending structure 211 and a second bending structure 212 on the first reinforcing plate 23, in some embodiments, the guide assembly 2 may also include a second reinforcing plate 24. At least a portion of the second reinforcing plate 24 is attached to the rear longitudinal beam body 1 and is spaced apart from the first reinforcing plate 23. The gap between the first reinforcing plate 23 and the second reinforcing plate 24 forms the first bending structure 211, and the second bending structure 212 is located on the side of the first reinforcing plate 23 closer to the second reinforcing plate 24.

[0051] The rear longitudinal beam body 1 is provided with a first reinforcing plate 23 and a second reinforcing plate 24 at intervals. At the interval between the first reinforcing plate 23 and the second reinforcing plate 24, the structural strength of the rear longitudinal beam body 1 is lower than that at the location where the reinforcing plates are arranged, thus forming a bending point at the interval. This arrangement eliminates the need to process two bending induction structures 21 on the first reinforcing plate 23. Instead, the position of the bending point can be controlled directly by adjusting the interval between the first reinforcing plate 23 and the second reinforcing plate 24. Compared with the above embodiment where two bending induction structures 21 are arranged on the first reinforcing plate 23, the processing difficulty is simplified, and the position of the bending point is easier to adjust.

[0052] In some embodiments, the guide assembly 2 may further include a third reinforcing plate. The first reinforcing plate 23, the second reinforcing plate 24, and the third reinforcing plate are arranged sequentially at intervals. A first bending structure 211 is formed at the interval between the first reinforcing plate 23 and the second reinforcing plate 24, and a second bending structure 212 is formed at the interval between the second reinforcing plate 24 and the third reinforcing plate. This arrangement eliminates the need to process bending structures on the first reinforcing plate 23 and / or the second reinforcing plate 24. The reinforcing plates can be assembled after injection molding, simplifying the processing steps.

[0053] However, both the first reinforcing plate 23 and the second reinforcing plate 24 contribute to improving structural strength. When both are installed simultaneously, the overall structural strength of the rear longitudinal beam body 1 is enhanced, which also improves the structural strength at the intervals. If the bending induction structure 21 is formed solely by setting intervals, the high structural strength at the intervals may prevent the guiding component 2 from guiding the rear longitudinal beam body 1 to bend in time, thus compressing the CDU.

[0054] Therefore, in one implementation of the present application, the second bending structure 212 may include at least one opening 2122, and the at least one opening 2122 is opened on the edge of the first reinforcing plate 23 along the length direction; when there are multiple openings 2122, the multiple openings 2122 are arranged at intervals along the length direction.

[0055] The rear longitudinal beam provided in this application embodiment has a second bending structure 212 near the CDU side, which is set as at least one opening 2122 on the edge of the first reinforcing plate 23. Since there is no solid structure at the opening 2122, the structural strength of the edge used to form the opening 2122 is low. Therefore, when the rear longitudinal beam body 1 is subjected to impact force, the opening 2122 is more likely to deform than the bending point formed by the interval, thereby guiding the rear longitudinal beam body 1 to bend.

[0056] In addition, the guiding performance of the guide component 2 can be improved by adjusting parameters such as the number, shape, and depth of the openings 2122.

[0057] Alternatively, the opening 2122 can be obtained by cutting the first reinforcing plate 23 and / or the second reinforcing plate 24, or it can also be obtained by direct injection molding.

[0058] In one implementation of this application, the bending direction of the rear longitudinal beam body 1 at the first bending structure 211 is opposite to the bending direction of the rear longitudinal beam body 1 at the second bending structure 212, so that when the rear longitudinal beam body 1 is subjected to impact and deforms, the whole body has a Z-shaped structure, wherein the Z-shaped structure has the following advantages.

[0059] (1) The Z-shaped structure provides better energy absorption. In the event of a collision, this shape can effectively disperse and absorb the impact energy to reduce the impact force during the collision, thereby protecting the passengers inside the vehicle.

[0060] (2) The Z-shaped structure is relatively stable and requires a greater impact force than usual to cause the Z-shaped structure to deform again. Therefore, the Z-shaped structure is not only conducive to absorbing energy, but also helps to prevent the vehicle body from deforming excessively during a collision, thereby maintaining the structural integrity of the vehicle.

[0061] In some embodiments, the rear longitudinal beam body 1 is bent at the second bending structure 212 toward the direction close to the first reinforcing plate 23, and at the first bending structure 211 toward the direction away from the first reinforcing plate 23. The rear longitudinal beam body 1 is Z-shaped, so that the bent rear longitudinal beam body 1 is away from the arrangement position of the CDU, further improving the safety factor of the vehicle.

[0062] Depend on Figure 2 It can be seen that the opening 2122 is located on the inner side of the rear longitudinal beam body 1. When the rear longitudinal beam body 1 is subjected to an impact force, the impact force will not be applied to the second bending structure 212 (opening 2122) immediately, but will act on the rear longitudinal beam body 1 first.

[0063] To enhance the guiding function of the guiding component 2, in one implementation of this application embodiment, the rear longitudinal beam body 1 includes a protruding section 11 and a straight section 12 connected thereto. The protruding section 11 protrudes from the surface of the rear longitudinal beam body 1 away from the first reinforcing plate 23 and in a direction away from the first reinforcing plate 23. The position of the connection between the protruding section 11 and the straight section 12 in the length direction corresponds to the position of the second bending structure 212 in the length direction.

[0064] A protruding section 11 is provided on the rear longitudinal beam body 1. The protruding section 11 and the straight section 12 are at an angle, so a bending point is formed at the connection between the protruding section 11 and the straight section 12, making the rear longitudinal beam body 1 more prone to bending at this point. Furthermore, the connection between the protruding section 11 and the straight section 12 corresponds to the second bending inducer structure 212, which, together with the second bending inducer structure 212, further enhances the guiding effect of the guide component 2.

[0065] It should be noted that when the number of second bending structures 212 on the first reinforcing plate 23 is more than one, the corresponding number of protruding segments 11 on the rear longitudinal beam body 1 is also multiple, and the number is the same as that of the second bending structures 212.

[0066] In some embodiments, the rear longitudinal beam body 1 may not have a protruding section 11, but instead has a through hole at the corresponding position of the second bending structure 212. By setting the through hole and cooperating with the second bending structure 212, the rear longitudinal beam body 1 is guided to bend. Compared with the rear longitudinal beam body 1 with a protruding section 11 in the above embodiments, the structure of the component is simpler and the manufacturing difficulty is reduced.

[0067] In one implementation of this application, the rear longitudinal beam body 1 has a U-shaped cross-section perpendicular to the length direction, and there is a cavity between the rear longitudinal beam body 1 and the first reinforcing plate 23.

[0068] In the rear longitudinal beam provided in this application embodiment, the cross-section of the rear longitudinal beam body 1 is U-shaped, and together with the first reinforcing plate 23, it forms a component with an internal cavity. When the vehicle is hit, the rear longitudinal beam body 1 and the first reinforcing plate 23 deform, which in turn causes the cavity to deform, so as to better absorb the impact energy and weaken the impact force, thereby better protecting the occupants of the vehicle and preventing them from being injured by the impact.

[0069] Furthermore, the cavity design between the rear longitudinal beam body 1 and the first reinforcing plate 23 makes it easier for the first reinforcing plate 23 to deform under impact force compared to the first reinforcing plate 23 being directly attached to the surface of the rear longitudinal beam body 1. This allows for better and faster guidance of the rear longitudinal beam body 1 to bend, thus improving the guiding and responsiveness of the guiding component 2.

[0070] Based on this, in one implementation of the present application, the first reinforcing plate 23 has a U-shaped cross-section along its length, and the opening 2122 of the first reinforcing plate 23 faces the rear longitudinal beam body 1; the inner wall of the rear longitudinal beam body 1 is connected to the outer wall of the first reinforcing plate 23.

[0071] The cross-sectional shape of the first reinforcing plate 23 can also be U-shaped. While forming a cavity with the rear longitudinal beam body 1, it also increases the wall thickness of the cavity wall used to form the cavity, preventing excessive deformation in the area outside the second bending structure 212, which would have a negative impact on the CDU.

[0072] In some embodiments, such as Figure 4 and Figure 5 As shown, the first reinforcing plate 23 includes a first plate body 231 and two first connecting parts 232; the two first connecting parts 232 are respectively located on opposite sides of the first plate body 231 along the width direction and are connected to the first plate body 231, with the width direction and length direction being perpendicular to each other; the rear longitudinal beam body 1 includes a second plate body 13 and two second connecting parts 14; the two second connecting parts 14 are respectively located on opposite sides of the second plate body 13 along the width direction and are connected to the second plate body 13; the first plate body 231, the two second connecting parts 14 and the second plate body 13 form a cavity.

[0073] The length of the first connecting part 232 can be less than the length of the first plate part 231, so that the end of the first connecting part 232 is higher than the first plate part 231 in the height direction. The second bending structure 212 mentioned above is naturally formed at the position where the height changes, without the need to cut the first reinforcing plate 23.

[0074] Since the CDU is generally located inside the rear longitudinal beam body 1 and close to the end of the rear longitudinal beam body 1 along the length direction, deformation near the end of the rear longitudinal beam body 1 should be avoided as much as possible to reduce the negative impact of bending of the rear longitudinal beam body 1 on the CDU.

[0075] Therefore, in one implementation of this application embodiment, the guide component 2 may further include a reinforcing part 25, which is located between the inner wall of the rear longitudinal beam body 1 and the outer wall of the first reinforcing plate 23, and is connected to or abuts against the inner wall and the outer wall respectively; wherein, the reinforcing part 25 is located on the side of the first reinforcing plate 23 away from the first bending structure 211.

[0076] In the rear longitudinal beam provided in this application embodiment, by providing an additional reinforcing part 25 on the side of the first reinforcing plate 23 away from the first bending structure 211, that is, near the end of the first reinforcing plate 23 and the rear longitudinal beam body 1, the structural strength near the end of the first reinforcing plate 23 and the rear longitudinal beam body 1 is reinforced, ensuring that the area near the end of the rear longitudinal beam body 1 will not deform excessively (or will not deform) when subjected to impact force, thus ensuring the integrity of the area near the end of the rear longitudinal beam and avoiding compression of the CDU.

[0077] In some embodiments, the reinforcing part 25 may include a third plate body and two third connecting parts. The two third connecting parts are located on opposite sides of the third plate body along the width direction and are connected to the third plate body. The cross section of the reinforcing part 25 perpendicular to the length direction is also U-shaped and is adapted to the shape of the first reinforcing plate 23. It is sleeved on the outside of the first reinforcing plate 23 and is connected to the first reinforcing plate 23 and the rear longitudinal beam body 1 respectively.

[0078] Optionally, the first reinforcing plate 23, the reinforcing part 25, and the rear longitudinal beam body 1 are welded together. Those skilled in the art can select and adjust the connection method between the three according to actual needs. For example, they can be connected by screws.

[0079] Optionally, at least one of the first reinforcing plate 23, the reinforcing part 25, and the rear longitudinal beam body 1 is a metal component made of high-strength duplex steel.

[0080] Optionally, the rear longitudinal beam body 1 is a DP590 component with a thickness between 1.2mm and 1.8mm; and / or,

[0081] The reinforcing part 25 is a DP780 component with a thickness between 1.6mm and 2.0mm; and / or,

[0082] The first reinforcing plate 23 is a DP590 component with a thickness between 1.1mm and 1.3mm.

[0083] Those skilled in the art can select and adjust the thickness of the rear longitudinal beam body 1, the reinforcing part 25 and the first reinforcing plate 23 according to actual needs.

[0084] For example, the thickness of the rear longitudinal beam body 1 is 1.4 mm, the thickness of the reinforcing part 25 is 1.8 mm, and the thickness of the first reinforcing plate 23 is 1.2 mm.

[0085] In some embodiments, such as Figure 2 and Figure 3As shown, the rear longitudinal beam body 1 may include a first body 15 and a second body 16, which are separately configured. A portion of the second body 16 is stacked on the first body 15, and a portion of the first reinforcing plate 23 is stacked on the side of the first body 15 away from the second body 16. The side of the first reinforcing plate 23 away from the first body 15 is connected to the first body 15. During assembly, the second body 16 and the first reinforcing plate 23 are respectively attached to both sides of the first body 15, and then the second body 16 and the first reinforcing plate 23 are welded together to complete the assembly.

[0086] It should be noted that, Figure 3 The rear longitudinal beam is located on the right side of the vehicle, near the front on the left and near the rear on the right. There is another rear longitudinal beam positioned opposite it, and the two beams are symmetrical along the vehicle's longitudinal axis. The CDU is located... Figure 3 The inner side of the middle and rear longitudinal beams.

[0087] When the vehicle is impacted, the rear ends of the two rear longitudinal beams are impacted first, and then bend sequentially at the second bending structure and the first bending structure, forming a Z-shaped structure.

[0088] This application also provides a vehicle including the aforementioned rear longitudinal beam.

[0089] The vehicle provided in this application embodiment, by setting a guide component 2 on the rear longitudinal beam body 1, causes the rear longitudinal beam to deform at the bending position 21 when subjected to external impact force, controlling the bending position of the rear longitudinal beam to be as far away from the arrangement position of the CDU as possible, avoiding the compression of the CDU when the rear longitudinal beam deforms. Compared with the traditional vehicle rear longitudinal beam, the bending position is controllable, which can meet the safety requirements of the CDU under different vehicle models.

[0090] In one implementation of this application, there are two rear longitudinal beams, which are spaced apart along the width direction of the vehicle.

[0091] The vehicle also includes a high-voltage electronic control module, which is located between the two rear longitudinal beams and on the side of the rear longitudinal beams where the bending induction structure 21 is provided.

[0092] It should be noted that the CDU is usually located between two rear longitudinal beams. Placing the CDU on the side of the rear longitudinal beam with the bending induction structure 21 can prevent the bending point of the rear longitudinal beam body 1 from being squeezed by the CDU when the rear longitudinal beam deforms, thereby improving the safety factor of the vehicle.

[0093] It should be noted that the rear longitudinal beam provided in this application embodiment is not only applicable to hybrid vehicles, but also to pure electric vehicles, to protect the internal devices of the vehicle from being damaged by compression, or to traditional vehicles, to protect the fuel tank from being squeezed and leaking.

[0094] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0095] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0096] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A rear longitudinal beam, used in a vehicle, characterized in that, The rear longitudinal beam includes a rear longitudinal beam body (1) and a guide assembly (2); The guide assembly (2) includes at least one bending structure (21), the guide assembly (2) is connected to the rear longitudinal beam body (1) and is configured to guide the rear longitudinal beam body (1) to bend at the bending structure (21) when the rear longitudinal beam body (1) is subjected to an external force; The number of the bending induction structures (21) is two, including a first bending induction structure (211) and a second bending induction structure (212). The guide assembly (2) includes a first reinforcing plate (23), at least a portion of which is attached to the rear longitudinal beam body (1), and the first bending structure (211) and the second bending structure (212) are arranged at intervals along the length direction of the first reinforcing plate (23). Alternatively, the guide assembly (2) may further include a second reinforcing plate (24), at least a portion of which is attached to the rear longitudinal beam body (1) and spaced apart from the first reinforcing plate (23). The gap between the first reinforcing plate (23) and the second reinforcing plate (24) forms the first bending structure (211), and the second bending structure (212) is located on the side of the first reinforcing plate (23) near the second reinforcing plate (24).

2. The rear longitudinal beam according to claim 1, characterized in that, The bending direction of the rear longitudinal beam body (1) at the first bending structure (211) is opposite to the bending direction of the rear longitudinal beam body (1) at the second bending structure (212).

3. The rear longitudinal beam according to claim 1 or 2, characterized in that, The second bending structure (212) includes at least one opening (2122), which is formed at the edge of the first reinforcing plate (23) along the length direction; When there are multiple openings (2122), the multiple openings (2122) are arranged at intervals along the length direction.

4. The rear longitudinal beam according to claim 1 or 2, characterized in that, The rear longitudinal beam body (1) includes a protruding section (11) and a straight section (12) connected thereto. The protruding section (11) protrudes from the surface of the rear longitudinal beam body (1) away from the first reinforcing plate (23) in a direction away from the first reinforcing plate (23). The connection between the protruding segment (11) and the straight segment (12) is located in the length direction, which corresponds to the position of the second bending structure (212) in the length direction.

5. The rear longitudinal beam according to claim 1, characterized in that, The rear longitudinal beam body (1) has a U-shaped cross section perpendicular to the length direction, and there is a cavity between the rear longitudinal beam body (1) and the first reinforcing plate (23).

6. The rear longitudinal beam according to claim 5, characterized in that, The first reinforcing plate (23) has a U-shaped cross section along the length direction, and the opening (2122) of the first reinforcing plate (23) faces the rear longitudinal beam body (1). The inner wall of the rear longitudinal beam body (1) is connected to the outer wall of the first reinforcing plate (23).

7. The rear longitudinal beam according to claim 1, characterized in that, The guide assembly (2) further includes a reinforcing part (25), which is located between the inner wall of the rear longitudinal beam body (1) and the outer wall of the first reinforcing plate (23), and is connected to or abuts against the inner wall and the outer wall respectively; The reinforcing part (25) is located on the side of the first reinforcing plate (23) away from the first bending structure (211).

8. A vehicle, characterized in that, Includes the rear longitudinal beam as described in any one of claims 1 to 7.

9. The vehicle according to claim 8, characterized in that, The number of rear longitudinal beams is two, and they are arranged at intervals along the width direction of the vehicle. The vehicle also includes a high-voltage electronic control module located between the two rear longitudinal beams and on the side of the rear longitudinal beams where the bending induction structure (21) is provided.

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