Battery protection structure in vehicle and vehicle

Abstract

The invention discloses a battery protection structure in a vehicle and the vehicle, and belongs to the technical field of vehicles. According to one specific embodiment, the battery protection structure comprises a protection beam and a sliding assembly, wherein the protective beam is arranged in front of or behind the battery module, and in a non-collision state, the protective beam is higher than the bottom of the battery module; the sliding assembly is connected with the protection beam, the sliding assembly is arranged in the front-back direction of the vehicle, and the part of the sliding assembly is lower than the bottom of the battery module or flush with the bottom of the battery module; and in a collision state, the protective beam slides along the sliding assembly under the pushing of an obstacle. According to the embodiment, the obstacle can be prevented from colliding with the battery module at the bottom of the vehicle, so that the safety of the battery module is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a battery protection structure in a vehicle and the vehicle. Background Art

[0002] Currently, the power batteries of new energy vehicles are generally installed under the vehicle body. While driving, the vehicle may encounter obstacles on the road. If the obstacle is higher than the gap between the vehicle and the road, the vehicle's underbody may collide with the obstacle, causing damage to the power battery. Therefore, protecting the power battery under the vehicle body and minimizing its impact with road obstacles is crucial to battery safety. Summary of the Invention

[0003] In view of this, the present invention provides a battery protection structure in a vehicle and a vehicle, wherein a protection beam is provided in front of or behind the battery module, and the initial height of the protection beam is higher than the bottom of the battery module. The protection beam is connected to a sliding assembly, and a portion of the sliding assembly is lower than the bottom of the battery module or is flush with the bottom of the battery module. Therefore, if the vehicle encounters a road obstacle during driving, the obstacle will abut against the protection beam before hitting the battery module, and as the vehicle continues to drive, the protection beam can slide along the sliding assembly under the resistance of the obstacle, thereby moving to a position flush with the bottom of the battery module or below the battery module, thereby preventing the obstacle from colliding with the battery module at the bottom of the vehicle, thereby ensuring the safety of the battery module.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] According to a first aspect of an embodiment of the present invention, the present invention provides a battery protection structure in a vehicle, comprising: a protection beam and a sliding assembly; wherein,

[0006] The protection beam is arranged in front of or behind the battery module. In a non-collision state, the height of the protection beam is higher than the bottom of the battery module.

[0007] The sliding assembly is connected to the protection beam, and the sliding assembly is arranged along the front-rear direction of the vehicle, and a portion of the sliding assembly is lower than the bottom of the battery module or is flush with the bottom of the battery module;

[0008] In a collision state, the protection beam slides along the sliding assembly under the push of the obstacle.

[0009] Optionally, the sliding assembly includes a shaft, guide rails provided on both sides of the battery module, and a sliding component cooperating with the guide rails; wherein,

[0010] The shaft body is arranged across the guide rails on both sides of the battery module, and the sliding components are arranged at both ends of the shaft body;

[0011] The shaft is fixedly connected to the protection beam;

[0012] When the protection beam is hit, it drives the shaft to slide along the guide rail.

[0013] Optionally, the guide rail includes: a first linear guide rail, a second linear guide rail and a curved guide rail; wherein, when the protection beam is arranged in front of the battery module,

[0014] The first linear guide rail is located at the front side of the battery module, and the height of the first linear guide rail is higher than the bottom of the battery module;

[0015] The second linear guide rail is located beside the battery module, and the height of the second linear guide rail is flush with or lower than the bottom of the battery module;

[0016] The first linear guide rail and the second linear guide rail are connected through the curved guide rail.

[0017] Optionally, the height of the second linear guide rail decreases in the front-to-rear direction of the vehicle;

[0018] Optionally, the curved guide rail includes an arcuate end portion and a connecting portion; the arcuate end portion is connected to the first linear guide rail and the second linear guide rail respectively, and the arcuate end portion is connected via the connecting portion; the connecting portion is arranged along the up-down direction of the battery module;

[0019] Optionally, the curved guide rail is an arc-shaped guide rail.

[0020] Optionally, the longitudinal section of the protection beam is in the shape of an inwardly concave arc.

[0021] Optionally, the bottom end of the protection beam is flush with or lower than the bottom of the battery;

[0022] Optionally, an angle between the arc-shaped opening direction of the protection beam and the initial sliding direction of the sliding assembly is smaller than a preset threshold.

[0023] Optionally, the protection beam is made of a rigid material;

[0024] Optionally, the protection beam is made of a multilayer material consisting of a rigid material and a flexible material, and the flexible material layer is coated on the rigid material layer.

[0025] Optionally, the battery protection structure further includes: a buffer component; wherein,

[0026] The buffer assembly is arranged along the front-rear direction of the vehicle, and the front side of the buffer assembly is connected to the shaft body;

[0027] In a collision state, the protection beam abuts against the buffer assembly when sliding along the guide rail and pushes the buffer assembly to move, so as to absorb collision energy through the buffer assembly;

[0028] After the collision, the protection beam returns to its original position under the elastic push of the buffer assembly.

[0029] Optionally, the buffer assembly includes a spring and a damper;

[0030] The spring and the damper are arranged along the guide rail, and one end of the spring is connected to the shaft, and the other end is connected to the damper;

[0031] The other end of the damper abuts against the end of the guide rail.

[0032] According to a second aspect of an embodiment of the present invention, the present invention provides a vehicle, comprising: any one of the battery protection structures provided in the first aspect and a battery module.

[0033] The technical solution of the above invention has the following advantages or beneficial effects: by arranging a protective beam in front of or behind the battery module, the initial height of the protective beam (the height in the absence of a collision) is higher than the bottom of the battery module. In addition, the protective beam is connected to a sliding assembly, and a portion of the sliding assembly is lower than the bottom of the battery module or is flush with the bottom of the battery module. Therefore, if the vehicle encounters a road obstacle during driving, the obstacle will abut against the protective beam before hitting the battery module, and as the vehicle continues to drive, the protective beam can slide along the sliding assembly under the push of the obstacle, thereby moving to a position flush with the bottom of the battery module or below the battery module, thereby preventing the obstacle from colliding with the battery module at the bottom of the vehicle, thereby ensuring the safety of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a structural schematic diagram of a vehicle including a battery protection structure provided according to an embodiment of the present invention;

[0035] Figure 2 2 is a schematic structural diagram of a battery protection structure in a vehicle according to an embodiment of the present invention;

[0036] Figure 3 is a front view of a battery protection structure in a vehicle provided according to an embodiment of the present invention;

[0037] Figure 4 This is a schematic structural diagram of a guide rail in a battery protection structure provided according to an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the relative positions of the guide rails and the battery module in a battery protection structure provided according to an embodiment of the present invention;

[0039] Figure 6 2. A schematic diagram of an arc-shaped opening direction of a protection beam in a battery protection structure provided by an embodiment of the present invention;

[0040] Figure 7 2. A schematic diagram of the arc-shaped opening direction of a protection beam in another battery protection structure provided by an embodiment of the present invention;

[0041] Figure 8 1 is a schematic structural diagram of a battery protection structure including a buffer assembly according to an embodiment of the present invention;

[0042] Figure 9 2 is a schematic diagram of main modules of a vehicle provided according to an embodiment of the present invention.

[0043] The reference numerals are as follows:

[0044] 10-Battery protection structure;

[0045] 11-protection beam, 12-sliding assembly;

[0046] 121- shaft, 122- guide rail, 123- sliding component;

[0047] 1221-first linear guide rail; 1222-second linear guide rail; 1223-curved guide rail;

[0048] 20-battery module;

[0049] 30-Vehicles;

[0050] 40-buffer assembly; 41-spring; 42-damper. DETAILED DESCRIPTION

[0051] The following description of exemplary embodiments of the present invention is made in conjunction with the accompanying drawings, in which various details of the embodiments of the present invention are included to facilitate understanding. These details should be considered as merely exemplary. Therefore, it should be appreciated by those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0052] It should be pointed out that, in the absence of conflict, the embodiments of the present invention and the technical features therein may be combined with each other.

[0053] The terms "first" and "second" in the embodiments of the present invention are used to distinguish different structures or components and do not limit the number or order of the structures or components. For example, the first linear guide and the second linear guide in the embodiments of the present invention are used to distinguish different sections of the guide rail.

[0054] The vehicle involved in the embodiment of the present invention may be an internal combustion engine vehicle using an engine as a power source, a hybrid vehicle using an engine and an electric motor as power sources, an electric vehicle using an electric motor as a power source, or the like.

[0055] In order to protect the integrity and safety performance of the battery module at the bottom of the vehicle, an embodiment of the present invention provides a battery protection structure in a vehicle, such as Figure 1 and Figure 2 As shown, the battery protection structure 10 includes: a protection beam 11 and a sliding assembly 12; wherein,

[0056] The protection beam 11 is provided in front of or behind the battery module 20. In a non-collision state, the height of the protection beam 11 is higher than the bottom of the battery module 20.

[0057] The sliding assembly 12 is connected to the protection beam 11 . The sliding assembly 12 is arranged along the front-to-rear direction of the vehicle 30 , and a portion of the sliding assembly 12 is lower than or flush with the bottom of the battery module 20 .

[0058] In a collision state, the protection beam 11 slides along the sliding assembly 12 under the push of the obstacle.

[0059] The front-to-back direction of the vehicle refers to the relative direction between the front and rear ends of the vehicle, with the front end being the front of the vehicle and the rear end being the rear end of the vehicle. Therefore, the front of the battery module 20 is the direction close to the front end of the vehicle, and the rear of the battery module 20 is the direction close to the rear end of the vehicle. In other words, if the protective beam 11 is disposed in front of the battery module 20, the distance between the protective beam 11 and the front end of the vehicle is smaller than the distance between the battery module 20 and the front end of the vehicle; if the protective beam 11 is disposed behind the battery module 20, the distance between the protective beam 11 and the front end of the vehicle is greater than the distance between the battery module 20 and the front end of the vehicle. Furthermore, the sliding assembly 12 is disposed along the front-to-back direction of the vehicle 30, indicating that the sliding direction of the sliding assembly 12 is from front to back or from back to front.

[0060] In current new energy vehicles, the battery module 20 is generally installed at the bottom of the vehicle 30. To adapt to different body structures, the battery module 20 can be set at the front of the vehicle (front battery) or the rear of the vehicle (rear battery), where the front battery is closer to the front of the vehicle and the rear battery is closer to the rear of the vehicle. Different from the setting position of the front battery and the rear battery, the collision direction of the battery module with road obstacles is also different. For example, for the front battery, it is more likely to collide with road obstacles during the forward movement of the vehicle, and during the reversing process, due to the obstruction of other components at the rear of the vehicle, even if there are obstacles on the road, the obstacles may not collide with the front battery due to the obstruction of other components at the rear. On the contrary, for the rear battery, it is more likely to collide with road obstacles during the reversing process, and during the forward movement of the vehicle, due to the obstruction of other components at the front of the vehicle, the possibility of the obstacle colliding with the battery module is lower.

[0061] Therefore, to protect the battery module, when the battery module is installed at the front of the vehicle, the protective beam 11 is located in front of the battery module 20; when the battery module is installed at the rear of the vehicle, the protective beam 11 is located behind the battery module 20. Therefore, for the front-mounted battery, if the vehicle encounters an obstacle while driving, the obstacle will first contact the protective beam 11 in front of the battery module 20, and the protective beam 11 will prevent the obstacle from colliding with the battery module. For the rear-mounted battery, if the vehicle encounters an obstacle while reversing, the obstacle will contact the protective beam 11 behind the battery module 20, and the protective beam 11 will prevent the obstacle from colliding with the battery module.

[0062] In addition, it can be understood that if the battery module is set in the middle position of the bottom of the vehicle, or if the battery module is large and occupies most of the area of the bottom of the vehicle, the protective beam 11 can be set in front of the battery module 20. This is because the vehicle will move forward in most scenarios, so setting the protective beam 11 in front of the battery module 20 is more conducive to protecting the safety performance of the battery module. It should be understood that the front and rear setting positions of the protective beam 11 are adapted to the front and rear positions of the battery module relative to the vehicle body. Regardless of whether the protective beam is set in front of or behind the battery module, the movement mechanism of the protective beam along the sliding assembly is basically the same. The only difference brought about by different positions is the movement direction of the protective beam - when the protective beam is set in front of the battery module, the protective beam slides along the sliding assembly toward the rear of the vehicle during a collision; when the protective beam is set behind the battery module, the protective beam slides along the sliding assembly toward the front of the vehicle during a collision. In the subsequent embodiments, for the sake of convenience of description, the protective beam is often set in front of the battery module as an example.

[0063] Thus, by setting the initial height of the protection beam 11 (the height when not in collision) higher than the bottom of the battery module, the protection beam is able to resist higher obstacles encountered by the vehicle during driving—obstacles that are higher than the distance between the bottom of the battery module and the road surface. Furthermore, during the resistance process, the protection beam 11 slides along the sliding assembly, gradually lowering its height until it is level with or lower than the bottom of the battery module, thus protecting the bottom of the battery module 20 during the obstacle resistance process.

[0064] Among them, the height of the protective beam 11 refers to the height of the protective beam 11 relative to the ground, that is, the distance between the plane where the protective beam 11 is located and the ground. This distance can be the distance between the axis of the protective beam and the ground, or the distance between the height of the top of the protective beam and the ground. The battery module 20 is an integral unit composed of multiple battery cells. The assembled battery module 20 is generally a cube or a quasi-cube (such as a cube-like shape, but with rounded corners). When it is set at the bottom of the vehicle, the top of the battery module 20 is the side close to the bottom of the vehicle, and the bottom is the side close to the ground. The height of the protective beam 11 is higher than the bottom of the battery module 20, which means that the distance between the protective beam 11 and the ground is greater than the distance between the bottom of the battery module 20 and the ground.

[0065] In addition, in order to further protect the bottom of the battery module 20, the bottom end height of the protective beam 11 is flush with or lower than the bottom of the battery, thereby preventing obstacles from directly colliding with the bottom of the battery module without abutting against the protective beam 11. The fact that the sliding component is partially lower than the bottom of the battery module or flush with the bottom of the battery module means that at least a portion of the sliding component is lower than the bottom of the battery module or flush with the bottom of the battery module. For example, for the guide rail in the sliding component, the portion connected to the protective beam is higher than the bottom of the battery module, but the portion away from the protective beam is lower than the bottom of the battery module or flush with the bottom of the battery module. In addition, the height of the protective beam and the sliding component relative to the battery module can be designed based on parameters such as the vehicle model, the size of the battery module, and the driving scenarios in which the vehicle is most commonly used. For example, for a vehicle with a lower chassis, the portion of the sliding assembly away from the protective beam can be set slightly lower than the bottom of the battery module to better protect the bottom of the battery module; for a vehicle with a higher chassis, the portion of the sliding assembly away from the protective beam can be set to be level with the bottom of the battery module, that is, the distance of a part of the sliding assembly relative to the ground is basically the same as the distance of the battery module relative to the ground.

[0066] In one embodiment of the present invention, sliding components 123 are provided on both sides of the protection beam 11, and guide rails 122 are provided on both sides of the battery module 20. The protection beam 11 is arranged astride the guide rails 122 on both sides, and the sliding components 123 cooperate with the guide rails 122. Therefore, when the protection beam is hit by a road obstacle, it can slide along the guide rails 122 toward the rear of the vehicle via the sliding components 123.

[0067] In order to further facilitate the sliding of the protection beam 11 and improve the rigidity of the protection beam 11 during the collision, in one embodiment of the present invention, as shown in FIG. Figure 2 and Figure 3 As shown, the sliding assembly 12 includes a shaft 121, guide rails 122 arranged on both sides of the battery module 20, and a sliding component 123 cooperating with the guide rails 122; wherein, the shaft 121 is arranged across the guide rails 122 on both sides of the battery module 20, and the sliding components 123 are provided at both ends of the shaft 121; the shaft is fixedly connected to the protective beam 11; when the protective beam 11 is hit, it drives the shaft to slide along the guide rails 122.

[0068] Here, both ends of the shaft 121 are connected to the guide rail 122 via a sliding component 123. Thus, after encountering a higher road obstacle, the obstacle will first contact the protective beam 11. At this time, if the vehicle continues to move forward, the presence of the obstacle will push the protective beam 11 backward and drive the shaft 121 to slide along the guide rail 122, thereby causing the protective beam 11 to move from an initial position higher than the bottom of the battery module to a position flush with or lower than the bottom of the battery module. During this process, the obstacle is always in contact with the protective beam, thereby preventing the obstacle from scraping against the battery module through the protective beam, thereby protecting the safety of the battery module. In addition, the guide rails are provided on both sides of the battery module 20, and can also protect the sides of the battery module 20, which is beneficial for preventing the battery module 20 from being hit from the side.

[0069] The sliding member 123 may be Figure 3 The roller shown in FIG. 1 is a roller, and accordingly, the guide rail 122 is a slide rail, wherein the cross section of the slide rail is C-shaped or In addition, the sliding member 123 and the guide rail 122 can also be other parts that cooperate with each other, such as the guide rails on both sides are grooves with left and right openings, or grooves with upward openings, and the sliding member is a convex structure that can engage with the groove.

[0070] In order to guide the protection beam 11 to slide smoothly from the initial position above the bottom of the battery module to the rear of the vehicle, in one embodiment of the present invention, Figure 4As shown, the guide rail 122 includes: a first linear guide rail 1221, a second linear guide rail 1222 and a curved guide rail 1223; wherein, when the protective beam 11 is arranged in front of the battery module 20, the first linear guide rail 1221 is located in front of the battery module 20, and the height of the first linear guide rail 1221 is higher than the bottom of the battery module 20; the second linear guide rail 1222 is located beside the battery module 20, and the height of the second linear guide rail 1222 is flush with or lower than the bottom of the battery module 20; the first linear guide rail 1221 and the second linear guide rail 1222 are connected by the curved guide rail 1223. Therefore, the first linear guide rail 1221 and the second linear guide rail 1222 are connected by the non-linear curved guide rail 1223, which increases the smoothness of the moving path corresponding to the guide rail, thereby facilitating guiding the anti-collision beam 11 from a position higher than the bottom of the battery module to a position flush with or lower than the bottom of the battery module during a collision, and helps to avoid the negative impact of the anti-collision beam on passability.

[0071] Among them, similar to the front-to-back position of the protective beam 11 and the battery module 20, the first linear guide 1221 being located in front of the battery module 20 means that the first linear guide 1221 is closer to the front of the vehicle than the battery module 20. In the embodiment of the present invention, the height of the first linear guide 1221 being higher than the bottom of the battery module 20 means that the distance between the first linear guide 1221 and the ground is greater than the distance between the bottom of the battery module 20 and the ground. In addition, as described above, the assembled battery module 20 is generally in the shape of a cube or a quasi-cube, and in addition to a top and a bottom, it also has front and rear sides and left and right sides. The front and rear sides and left and right sides here are also relative to the front and rear sides of the vehicle, that is, the front and rear sides of the battery module refer to the two sides of the battery module close to the front and rear of the vehicle, respectively, and the sides of the battery module correspond to the two sides on the left and right sides of the vehicle. In the embodiment of the present invention, the second linear guide 1222 is located beside the battery module 20, which means that the second linear guide 1222 is arranged on the left and right sides of the battery module 20, so that the protective beam 11 can protect the battery module from the side during the movement along the guide rail. It can also be understood that the first linear guide 1221 and the second linear guide 1222 are guide rails extending in a straight line direction, which may produce slight fluctuations in actual manufacturing and installation, and are not absolutely straight lines. However, in the embodiment of the present invention, during the movement of the protective beam 11 along the first linear guide 1221 and the second linear guide 1222, the movement direction is basically a straight line direction. For example, the movement trend of the protective beam 11 along the first linear guide 1221 is from front to back. Similarly, the movement trend of the protective beam 11 along the second linear guide 1222 is also from front to back.

[0072] Continue to refer Figure 4The curved guide rail 1223 includes an arcuate end portion and a connecting portion. The arcuate end portion is connected to the first linear guide rail 1221 and the second linear guide rail 1222, respectively, and the arcuate end portion is connected via the connecting portion. The connecting portion is provided along the vertical direction of the battery module 20. Here, the connecting portion is provided along the vertical direction of the battery module 20, indicating that the guiding direction of the connecting portion is from top to bottom. In other words, when the protective beam 11 moves along the connecting portion, it slides from top to bottom. In other words, the two ends of the curved guide rail 1223 are arc-shaped, respectively connecting the first linear guide rail 1221 and the second linear guide rail 1222. This facilitates the smooth sliding of the protective beam 11 from the first linear guide rail 1221 to the curved guide rail 1223. The protective beam 11 is adjusted relative to the battery module 20 by the vertically arranged connecting portions of the curved guide rail 1223, i.e., it slides from a position above the bottom of the battery module 20 to a position flush with or below the bottom of the battery module. The protective beam 11 then smoothly slides onto the second linear guide rail 1223 via the arc-shaped ends of the curved guide rail 1223, and continues to move toward the rear of the vehicle under the guidance of the second linear guide rail 1223. In addition to the curved guide rails of the aforementioned structure, embodiments of the present invention may also employ curved guide rails of other structures. For example, an arc-shaped guide rail may be employed to smoothly guide the protective beam 11 from the first linear guide rail 1221 to the second linear guide rail 1222.

[0073] It should be understood that if the protective beam 11 is arranged behind the battery module 20, the first linear guide rail 1221, the second linear guide rail 1222 and the curved guide rail 1223 are only arranged in the opposite direction to the case where the anti-collision beam 11 is arranged in front of the battery module, that is, the first linear guide rail 1221 is arranged on the rear side of the battery module 20, and the other settings are basically the same as the case where the anti-collision beam 11 is arranged in front of the battery module.

[0074] In addition, in addition to Figure 2 and Figure 4 In the case where the height of the second linear guide rail 1222 shown in FIG. 1 is consistent front to back, in one embodiment of the present invention, as shown in FIG. Figure 5 As shown, the height of the second linear guide rail 1222 may also decrease in the front-to-rear direction of the vehicle. The starting height of the second linear guide rail 1222 (the height of the connection with the curved guide rail) may be flush with the bottom of the battery module or slightly higher than the height of the bottom of the battery module, and the ending height of the second linear guide rail 1222 may be slightly lower than the height of the bottom of the battery module. Thus, the protective beam 11 may continue to lower its height during the sliding process along the second linear guide rail 1222, thereby protecting the bottom of the battery module 20. In this case, the curved guide rail 1223 connected to the second linear guide rail 1222 may be the above-mentioned structure including the arc-shaped end portion and the connecting portion, or may be a structure such as Figure 5 The curved guide rail shown.

[0075] In addition, in order to facilitate the contact between the road obstacle and the protection beam 11, thereby pushing the protection beam 11 to slide along the sliding assembly, in one embodiment of the present invention, as shown in FIG. Figure 2 and Figure 5 As shown, the longitudinal section of the protective beam 11 is in the shape of an inward-concave arc. Here, the concavity of the protective beam 11 is described based on the perspective of the front of the vehicle, that is, in the longitudinal section of the protective beam 11, the middle part is closer to the rear of the vehicle relative to the upper and lower sides, so that from the perspective of the front of the vehicle, the protective beam 11 is in the shape of an inward-concave arc. In addition, the angle between the arc-shaped opening direction of the protective beam 11 and the initial sliding direction of the sliding component 12 is less than a preset threshold. Among them, the arc-shaped opening direction of the protective beam 11 is a direction perpendicular to the arc tangent, and the initial sliding direction of the sliding component is also the sliding direction of the first linear guide rail 1221. When the angle between these two directions is less than the preset threshold, the arc-shaped opening of the protective beam can be in the direction toward the front of the vehicle (the angle is 0), or it can be Figure 6 Shown slightly toward the roof or Figure 7 As shown, it is slightly tilted toward the ground so that when encountering a high obstacle on the road during driving, the obstacle will contact the protective beam through the arc-shaped opening and continue to push the protective beam backward. The angle of the protective beam 11 toward the roof or toward the ground can be designed based on the vehicle model and battery module size, that is, the preset threshold can be designed based on actual parameters such as the vehicle model and battery module size.

[0076] In addition, in order to facilitate the protection beam 11 to block obstacles, in an embodiment of the present invention, the protection beam 11 is made of a rigid material, such as a metal material such as stainless steel or an iron-aluminum alloy, so as to avoid being pierced by the obstacle and damaging the battery during the process of sliding backward against the obstacle. Furthermore, in order to buffer the collision energy, the protection beam 11 can be made of a multilayer material consisting of a rigid material and a flexible material, and the flexible material layer is coated on the rigid material layer. For example, if the protection beam 11 is made of stainless steel, a flexible material layer such as a foam board or sponge is coated on the outside of the stainless steel. As a result, when the protection beam 11 collides with an obstacle, the collision energy is partially absorbed by the flexible material layer first, and the rigidity provided by the rigid material layer prevents the protection beam from being pierced by the obstacle and damaging the battery.

[0077] In order to further absorb the collision energy, Figure 8 As shown, the battery protection structure provided by the embodiment of the present invention further includes: a buffer assembly 40; wherein the buffer assembly 40 is arranged along the front-to-back direction of the vehicle, and the front side of the buffer assembly 40 is connected to the shaft 121;

[0078] During a collision, the protective beam 11 slides along the guide rail 122, abutting against the buffer assembly 40 and pushing the buffer assembly 40 to absorb the collision energy. After the collision, the protective beam 11 returns to its original position under the elastic force of the buffer assembly 40. In this embodiment, the buffer assembly 40 is arranged along the front-to-back direction of the vehicle, indicating that the buffer component 40 also moves from the front to the rear or from the rear to the front of the vehicle.

[0079] Specifically, in one embodiment of the present invention, the buffer assembly 40 includes a spring 41 and a damper 42. The spring 41 and damper 42 are arranged along the guide rail 122, with one end of the spring 41 connected to the shaft 121 and the other end connected to the damper 42. The other end of the damper 42 abuts against the end of the guide rail 122. Thus, when the protective beam 11 blocks an obstacle and moves toward the rear of the vehicle, the damper absorbs some of the collision energy, slowing the movement. After the collision (after the vehicle passes the obstacle), the spring's rebound force returns the protective beam 11 to its initial position, allowing it to resist any subsequent obstacles.

[0080] The following uses the example of a protective beam positioned in front of a battery module to further illustrate the movement mechanism and process of the battery protection structure provided by an embodiment of the present invention. In this embodiment of the present invention, in a non-collision state, the protective beam is positioned in front of the battery module, with its axis higher than the bottom of the battery module and its lower end flush with or slightly below the bottom of the battery module. Guide rails are provided on both sides of the battery module, extending from the sides of the battery module to the front of the battery module where they connect with the protective beam. When a vehicle encounters a high, raised obstacle on the road surface during driving, the obstacle first strikes the protective beam in front of the battery module, effectively blocking it before striking the battery module. As the vehicle continues to move, the protective beam slides backward under the force of the obstacle. During this process, the springs and dampers in the buffer assembly absorb some of the collision energy. Guided by the guide rails, the protective beam moves to a position flush with or slightly below the bottom of the battery module, preventing the obstacle from scraping against the sides or bottom of the battery module, thereby protecting the integrity and safety of the battery module.

[0081] like Figure 9 As shown, another embodiment of the present invention further provides a vehicle 30 , comprising: the battery protection structure 10 and the battery module 20 provided in any one of the above embodiments.

[0082] Among them, continue to refer to Figure 1The battery module 20 is arranged at the bottom of the vehicle body; the setting of the anti-collision beam and the sliding assembly can prevent the battery module 20 from directly colliding with obstacles on the road during the driving of the vehicle, thereby protecting the battery module 20.

[0083] It can be seen from the battery protection structure and vehicle according to the embodiment of the present invention that by setting a protection beam in front of or behind the battery module, the initial height of the protection beam is higher than the bottom of the battery module. In addition, the protection beam is connected to the sliding assembly, and a part of the sliding assembly is lower than the bottom of the battery module or flush with the bottom of the battery module. Therefore, if the vehicle encounters a road obstacle during driving, the obstacle will abut against the protection beam before hitting the battery module, and as the vehicle continues to drive, the protection beam can slide along the sliding assembly under the resistance of the obstacle, thereby moving to a position flush with the bottom of the battery module or below the battery module, thereby preventing the obstacle from colliding with the battery module at the bottom of the vehicle, thereby ensuring the safety of the battery module.

[0084] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A battery protection structure in a vehicle, characterized in that: include: A protective beam (11) and a sliding assembly (12); wherein, The protection beam (11) is arranged in front of or behind the battery module (20); in a non-collision state, the height of the protection beam (11) is higher than the bottom of the battery module (20); The sliding assembly (12) is connected to the protection beam (11), the sliding assembly (12) is arranged along the front-rear direction of the vehicle (30), and a part of the sliding assembly (12) is lower than the bottom of the battery module (20) or is flush with the bottom of the battery module (20); In a collision state, the protection beam (11) slides along the sliding assembly (12) under the push of an obstacle.

2. The battery protection structure according to claim 1, characterized in that: The sliding assembly (12) includes a shaft (121), guide rails (122) arranged on both sides of the battery module (20), and a sliding component (123) cooperating with the guide rails (122); wherein, The shaft (121) is arranged across the guide rails (122) on both sides of the battery module (20), and the sliding components (123) are provided at both ends of the shaft (121); The shaft (121) is fixedly connected to the protection beam (11); When the protection beam (11) is struck, it drives the shaft (121) to slide along the guide rail (122).

3. The battery protection structure according to claim 2, characterized in that: The guide rail (122) includes: a first linear guide rail (1221), a second linear guide rail (1222) and a curved guide rail (1223); wherein, when the protection beam (11) is arranged in front of the battery module (20), The first linear guide rail (1221) is located on the front side of the battery module (20), and the height of the first linear guide rail (1221) is higher than the bottom of the battery module (20); The second linear guide rail (1222) is located beside the battery module (20), and the height of the second linear guide rail (1222) is flush with or lower than the bottom of the battery module (20); The first linear guide rail (1221) and the second linear guide rail (1222) are connected via the curved guide rail (1223).

4. The battery protection structure according to claim 3, characterized in that: The height of the second linear guide rail (1222) decreases in the front-rear direction of the vehicle (30); and / or, The curved guide rail (1223) includes an arcuate end portion and a connecting portion; the arcuate end portion is respectively connected to the first linear guide rail (1221) and the second linear guide rail (1222), and the arcuate end portion is connected via the connecting portion; the connecting portion is arranged along the upper and lower directions of the battery module (20); and / or, The curved guide rail (1223) is an arc-shaped guide rail.

5. The battery protection structure according to claim 1, characterized in that: The longitudinal section of the protection beam (11) is in an inwardly concave arc shape.

6. The battery protection structure according to claim 5, characterized in that: The bottom end of the protection beam (11) is flush with or lower than the bottom of the battery; and / or, The angle between the arc-shaped opening direction of the protection beam (11) and the initial sliding direction of the sliding component (12) is smaller than a preset threshold.

7. The battery protection structure according to claim 1, characterized in that: The protection beam (11) is made of a rigid material; or, The protection beam (11) is made of a multilayer material consisting of a rigid material and a flexible material, and the flexible material layer is coated on the rigid material layer.

8. The battery protection structure according to claim 2, characterized in that: Also includes: Buffer component; wherein, The buffer assembly is arranged along the front-rear direction of the vehicle (30), and the front side of the buffer assembly is connected to the shaft (121); In a collision state, the protection beam (11) abuts against the buffer assembly when sliding along the guide rail (122), and pushes the buffer assembly to move, so that the collision energy is absorbed by the buffer assembly; After the collision, the protection beam (11) returns to its initial position under the elastic push of the buffer assembly.

9. The battery protection structure according to claim 8, characterized in that: The buffer assembly includes a spring and a damper; The spring and the damper are arranged along the guide rail (122), and one end of the spring is connected to the shaft (121), and the other end is connected to the damper; The other end of the damper abuts against the end of the guide rail (122).

10. A vehicle, characterized in that: include: The battery protection structure (10) and battery module (20) according to any one of claims 1 to 9.

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