Energy absorption box, anti-collision beam assembly and vehicle

Abstract

The invention provides an energy absorption box, an anti-collision beam assembly and a vehicle. The energy absorption box comprises a fixed part, a movable part, a limiting piece and a first driving piece. The movable part is movably connected with the fixed part and can move in the first direction relative to the fixed part; the limiting piece is movably connected with the movable part, and the first driving piece is connected with the limiting piece and suitable for driving the limiting piece to move in the second direction relative to the movable part; wherein the first direction intersects with the second direction; a limiting part is arranged on the fixed part, and under the condition that the limiting piece moves to be matched with the limiting part, the limiting piece limits the movement of the movable part in the first direction; under the condition that the limiting piece moves to be separated from the limiting part, the movable part can move in the first direction relative to the fixed part. According to the anti-collision beam, the size of the energy absorption box in the first direction can be changed, so that the protection action of the anti-collision beam can be correspondingly adjusted, the anti-collision beam can execute different actions according to different collision scenes, and the driving safety of a vehicle can be improved.

Description

Technical Field

[0001] This application relates to the field of crash beam technology, and in particular to an energy-absorbing box, a crash beam assembly, and a vehicle. Background Technology

[0002] As an important component of the vehicle body, the anti-collision beam assembly typically includes an energy-absorbing box, which connects the anti-collision beam to the longitudinal beams of the vehicle body. When a collision occurs, the energy-absorbing box can weaken the impact force to a certain extent, forming a force transmission path from the anti-collision beam to the energy-absorbing box and from the energy-absorbing box to the longitudinal beams. This helps protect the longitudinal beams from damage and reduces maintenance costs.

[0003] However, in the existing technology, the energy-absorbing box is directly fixed between the anti-collision beam and the longitudinal beam, and its size cannot be changed. This makes it impossible to adjust the protective action of the anti-collision beam. If a vehicle hits a pedestrian, the vehicle is likely to cause serious injury to the pedestrian and endanger the pedestrian's life. Therefore, there is an urgent need to design an energy-absorbing box to solve the problem of the anti-collision beam's protective action being unable to be adjusted. Summary of the Invention

[0004] In view of this, this application provides an energy-absorbing box, a crash beam assembly, and a vehicle to at least solve the problem in the prior art that the size of the energy-absorbing box cannot be changed, resulting in the inability to adjust the protective action of the crash beam.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows: In a first aspect, this application provides an energy-absorbing box, comprising: a fixed portion, a movable portion, a limiting member, and a first driving member; the movable portion is movably connected to the fixed portion, and the movable portion is capable of moving relative to the fixed portion along a first direction; the limiting member is movably connected to the movable portion, and the first driving member is connected to the limiting member, adapted to drive the limiting member to move relative to the movable portion along a second direction; wherein, the first direction intersects the second direction; The fixed part is provided with a limiting part. When the limiting member moves to cooperate with the limiting part, the limiting member restricts the movement of the movable part along the first direction. When the limiting member moves to separate from the limiting part, the movable part can move relative to the fixed part along the first direction.

[0006] Optionally, the movable part includes a pressure plate disposed at the end of the movable part along the first direction; the limiting member is disposed on at least one side of the pressure plate along the second direction and is movably connected to the pressure plate; the first driving member is disposed on the pressure plate.

[0007] Optionally, the limiting member is slidably connected to the pressure plate; and / or, the limiting member is a limiting plate, the limiting part is a groove, the groove is arranged along a third direction, wherein the third direction intersects the first direction and the second direction respectively.

[0008] Optionally, there are at least two limiting portions, and the at least two limiting portions are spaced apart along the first direction.

[0009] Optionally, the fixed part is a cylindrical tube, and the cylindrical tube has a hollow cavity arranged along the first direction; the movable part is movably disposed in the hollow cavity.

[0010] Optionally, the energy-absorbing box further includes: a second driving member; the second driving member is disposed in the hollow cavity and connected to the movable part; the second driving member is adapted to drive the movable part to move relative to the fixed part along the first direction.

[0011] Optionally, the first driving member and / or the second driving member can be any one of a telescopic electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0012] Optionally, the energy-absorbing box further includes: an elastic element; the elastic element is disposed along the first direction, one end of the elastic element is connected to the inner wall of the hollow cavity, and the other end of the elastic element is connected to the movable part.

[0013] Secondly, this application provides a crash beam assembly, including a crash beam and an energy-absorbing box as described in any of the preceding claims, wherein the movable part of the energy-absorbing box is fixedly connected to the crash beam.

[0014] Optionally, the anti-collision beam assembly further includes a controller; the controller is electrically connected to the first drive member, and the controller is adapted to control the action of the first drive member.

[0015] Optionally, the anti-collision beam assembly further includes an identification device; the identification device is electrically connected to the controller, and the identification device is adapted to identify the collision object of the anti-collision beam and generate a first signal or a second signal according to the collision object; The controller is adapted to control the first driving member to perform an action upon receiving the first signal, so as to drive the limiting member to move to a position separate from the limiting portion; the controller is also adapted to control the first driving member not to perform an action upon receiving the second signal, wherein, when the first driving member does not perform an action, the limiting member remains in a position cooperating with the limiting portion.

[0016] Thirdly, this application provides a vehicle including the anti-collision beam assembly described in any of the preceding claims.

[0017] Compared with existing technologies, the energy-absorbing box, anti-collision beam assembly, and vehicle described in this application have the following advantages: The energy-absorbing box of this application has a movable part that can move relative to the fixed part along a first direction X, allowing the size of the energy-absorbing box in the first direction X to be adjustable, that is, to change the vehicle's buffer energy-absorbing space. A first driving member can drive a limiting member to move relative to the movable part along a second direction Y, thereby restricting or releasing the movement of the movable part along the first direction X. Since the movable part is connected to the anti-collision beam, in scenarios where both occupants and pedestrians need to be protected simultaneously when the vehicle collides with a pedestrian, the first driving member can drive the limiting member to a position separated from the upper limit of the fixed part. At this time, the movable part can move relative to the fixed part along the first direction X, causing the anti-collision beam to retract, thereby increasing the vehicle's buffer energy-absorbing space and providing better protection against pedestrian collisions. In scenarios where a vehicle collides with another vehicle or road obstacle, where the protection of occupants is paramount, the first driving component can drive the limiting component to move to a position that mates with the upper limit of the fixed portion. At this point, the movable portion cannot move relative to the fixed portion along the first direction X. Consequently, upon impact, both the movable and fixed portions will undergo crushing deformation sequentially. Both the movable and fixed portions can act as energy absorbers and buffers, thus better protecting the occupants. Therefore, the energy-absorbing box of this embodiment can perform different actions according to different collision scenarios, enabling the vehicle to flexibly respond to various traffic accidents while strengthening the protection of both occupants and pedestrians, thereby improving vehicle driving safety.

[0018] The anti-collision beam assembly and vehicle of this application have the same or similar advantages as the prior art and the aforementioned energy-absorbing box, which will not be elaborated here. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is one of the schematic diagrams of an energy-absorbing box in an extended state according to an embodiment of this application; Figure 2 This is one of the schematic diagrams showing the cooperation between a limiting member and a limiting part in an embodiment of this application; Figure 3 This is one of the schematic diagrams showing the separation of the limiting member and the limiting part in an embodiment of this application; Figure 4 This is a side sectional view of an energy-absorbing box according to an embodiment of this application; Figure 5 This is a schematic diagram of an energy-absorbing box in a retracted state according to an embodiment of this application; Figure 6 This is the second schematic diagram of an energy-absorbing box in an extended state in an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures: 1-Fixed part, 10-Hollow cavity, 2-Moving part, 21-Pressure plate, 22-Extension, 3-Limiting part, 4-First driving part, 5-Elastic part, 6-Second driving part, 61-Connecting shaft, 7-Anti-collision beam; X - First direction, Y - Second direction, Z - Third direction. Detailed Implementation

[0021] 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.

[0022] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0023] The term "comprising" or any other variations thereof in the specification and claims of this application is intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0024] The following detailed description of a specific embodiment of an energy-absorbing box, a crash beam assembly, and a vehicle provided in this application is illustrated below.

[0025] In a first aspect, embodiments of this application provide an energy-absorbing box, referring to... Figure 1The energy-absorbing box includes: a fixed part 1, a movable part 2, a limiting member 3, and a first driving member 4; the movable part 2 is movably connected to the fixed part 1, and the movable part 2 can move relative to the fixed part 1 along a first direction X; the limiting member 3 is movably connected to the movable part 2, and the first driving member 4 is connected to the limiting member 3, which is suitable for driving the limiting member 3 to move relative to the movable part 2 along a second direction Y; wherein, the first direction X and the second direction Y intersect; the fixed part 1 is provided with a limiting part, and when the limiting member 3 moves to cooperate with the limiting part, the limiting member 3 restricts the movement of the movable part 2 along the first direction X; when the limiting member 3 moves to separate from the limiting part, the movable part 2 can move relative to the fixed part 1 along the first direction X.

[0026] Specifically, the movable part 2 is movably connected to the fixed part 1, and the movable part 2 can move relative to the fixed part 1 along the first direction X. For example, the movable part 2 and the fixed part 1 can be slidably connected, with a guide rail arranged along the first direction X on one of the movable part 2 and the fixed part 1, and a slider on the other. The movable part 2 can move relative to the fixed part 1 along the first direction X by sliding the slider in the guide rail. Alternatively, the movable part 2 and the fixed part 1 can be slidably connected, with a ball bearing, roller, or other rolling element on one of the movable part 2 and the guide rail arranged along the first direction X on the other. The movable part 2 can move relative to the fixed part 1 along the first direction X by rolling the rolling element in the guide rail. The movable part 2 and the fixed part 1 can also be telescopically connected, with the movable part 2 and the fixed part 1 using nested tubular components. The extension or retraction of the tubular components allows the movable part 2 to move relative to the fixed part 1 along the first direction X. This embodiment does not limit the specific method of movably connecting the movable part 2 and the fixed part 1.

[0027] The movable part 2 can move relative to the fixed part 1 along the first direction X. Figure 1The diagram shows a first direction X, which intersects with the extension direction of the anti-collision beam 7. By moving the movable part 2 relative to the fixed part 1 along the first direction X, the size of the energy-absorbing box in the first direction X is adjustable, meaning the vehicle's buffer energy-absorbing space can be changed. The buffer energy-absorbing space refers to the buffer area reserved by the vehicle before a collision occurs. Its function is to prolong the collision contact time, reduce the initial impact intensity, and decrease the severity of the direct collision, thereby reducing the damage to the collision object. In contrast to the buffer energy-absorbing space is the collision energy-absorbing space, which refers to the area where the vehicle absorbs energy during a collision through active deformation of the vehicle body structure (such as deformation of the energy-absorbing box). Its function is to convert the collision kinetic energy into the internal energy of structural deformation, preventing energy from being directly transferred to the passenger compartment, thus providing better protection for the occupants. The movable part 2 is adapted to connect with the vehicle's anti-collision beam 7, so that during the movement of the movable part 2 relative to the fixed part 1, the movable part 2 can drive the anti-collision beam 7 to move synchronously along the first direction X, so that the anti-collision beam 7 can retract or extend, that is, the protective action of the anti-collision beam 7 can be adjusted accordingly.

[0028] Figure 5 A schematic diagram of an energy-absorbing box in a retracted state is shown, indicating that the energy-absorbing box is relatively small in the first direction X. Figure 1 A schematic diagram of an energy-absorbing box in an extended state is shown, indicating that the energy-absorbing box has a larger dimension in the first direction X. That is, as the movable part 2 moves relative to the fixed part 1 along the first direction X, the protective action of the anti-collision beam 7 can be adjusted.

[0029] The energy-absorbing box also includes a limiting member 3, which is movably connected to the movable part 2, meaning that relative movement can occur between the limiting member 3 and the movable part 2. Similarly, the limiting member 3 and the movable part 2 can also be connected by sliding connection, rolling connection, telescopic connection, etc. This embodiment does not limit the specific way in which the limiting member 3 and the movable part 2 are movably connected.

[0030] The first driving member 4 is connected to the limiting member 3, and the first driving member 4 can drive the limiting member 3 to move relative to the movable part 2 in the second direction Y. Figure 1 The diagram shows a second direction Y, which intersects with the first direction X. Figure 1 The diagram shows an angle of approximately 90° between the second direction Y and the first direction X, which facilitates the limiting member 3 in restricting the movement of the movable part 2 and reduces the design complexity of the energy-absorbing box. Of course, the angle between the second direction Y and the first direction X can also be other angles, and this embodiment does not impose any limitations on this.

[0031] The fixed part 1 is provided with a limiting part that matches the limiting member 3. For example, the limiting member 3 is a protrusion, and the limiting part is a groove that matches the protrusion. When the limiting member 3 moves to engage with the limiting part, the limiting member 3 can restrict the movement of the movable part 2 along the first direction X. Figure 2 This illustration shows a schematic diagram of the cooperation between a limiting member 3 and a limiting part in an embodiment of this application, as shown below. Figure 2 As shown, in this case, the movable part 2 cannot move relative to the fixed part 1 along the first direction X; when the limiting member 3 moves to a position away from the limiting part, the movable part 2 can move relative to the fixed part 1 along the first direction X. Figure 3 This illustration shows a schematic diagram of the separation of the limiting member 3 from the limiting portion in an embodiment of this application, as shown below. Figure 3 As shown, in this case, the movable part 2 can drive the anti-collision beam 7 to retract or extend forward.

[0032] In this embodiment of the energy-absorbing box, the movable part 2 can move relative to the fixed part 1 along the first direction X, thereby making the size of the energy-absorbing box adjustable in the first direction X, that is, changing the vehicle's buffer energy-absorbing space. The first driving member 4 can drive the limiting member 3 to move relative to the movable part 2 along the second direction Y, so as to restrict or release the movement of the movable part 2 along the first direction X. Since the movable part 2 is connected to the anti-collision beam 7, in the scenario where it is necessary to protect both the occupants and the pedestrians when the vehicle collides with the pedestrian, the first driving member 4 can drive the limiting member 3 to move to a position separated from the upper limit of the fixed part 1. At this time, the movable part 2 can move relative to the fixed part 1 along the first direction X, causing the anti-collision beam 7 to retract. When the anti-collision beam 7 retracts, the vehicle's buffer energy-absorbing space increases accordingly, thereby providing a better protection effect for pedestrian collisions. In scenarios where a vehicle collides with another vehicle or road obstacle, where the protection of occupants is paramount, the first driving component 4 can drive the limiting component 3 to move to a position that mates with the upper limit of the fixed component 1. At this point, the movable component 2 cannot move relative to the fixed component 1 along the first direction X. Consequently, upon impact, both the movable component 2 and the fixed component 1 will undergo crushing deformation sequentially. Both the movable component 2 and the fixed component 1 can act as energy absorbers and buffers, thus better protecting the occupants. Therefore, the energy-absorbing box of this embodiment can perform different actions according to different collision scenarios, enabling the vehicle to flexibly respond to different traffic accidents while strengthening the protection of both occupants and pedestrians, thereby improving vehicle driving safety.

[0033] In some optional embodiments of this application, reference is made to Figure 1 The diagram shows one of the schematic diagrams of an energy-absorbing box in an extended state according to an embodiment of this application. The movable part 2 includes a pressure plate 21, which is disposed at the end of the movable part 2 along the first direction X; a limiting member 3 is disposed on at least one side of the pressure plate 21 along the second direction and is movably connected to the pressure plate 21; and a first driving member 4 is disposed on the pressure plate 21.

[0034] Specifically, the pressure plate 21 is located at the end of the movable part 2 along the first direction X, and the side of the movable part 2 away from the pressure plate 21 is adapted to connect with the anti-collision beam 7. The limiting member 3 is movably connected to the pressure plate 21, so that the limiting member 3 is located at the end of the movable part 2 along the first direction X, and limits the movement at the end of the movable part 2, which helps to provide sufficient movement space for the movable part 2.

[0035] The first driving component 4 is disposed on the pressure plate 21 and connected to the limiting component 3. The first driving component 4 can drive the limiting component 3 to move relative to the pressure plate 21 in the second direction Y. For example, the first driving component 4 can adopt a telescopic electric cylinder, pneumatic cylinder, hydraulic cylinder, gear rack, etc. The fixed end of the first driving component 4 is fixedly connected to the pressure plate 21, such as by bolting or welding it to the pressure plate 21. The output end of the first driving component 4 is connected to the limiting component 3, such as by connecting the piston of a pneumatic cylinder to the limiting component 3, and can drive the limiting component 3 to move relative to the pressure plate 21 in the second direction Y.

[0036] The limiting member 3 can be located on one side of the pressure plate 21 along the second direction Y. Correspondingly, a limiting part is provided on one side of the fixing part 1. The limiting member 3 and the limiting part cooperate to achieve a single-sided limiting effect. Alternatively, the limiting member 3 can be located on both sides of the pressure plate 21 along the second direction Y. Correspondingly, a limiting part is provided on both sides of the fixing part 1. The limiting member 3 and the limiting part cooperate to achieve a double-sided limiting effect. The single-sided limiting method is simple and helps to simplify the structure of the energy-absorbing box and facilitates processing. The double-sided limiting method has a better limiting effect and helps to improve the energy-absorbing box's ability to prevent collapse and deformation. The specific setting can be made according to actual needs, and this embodiment does not limit it.

[0037] In some optional embodiments of this application, there are at least two limiting portions, which are spaced apart along the first direction X. Specifically, there are two or more limiting portions, any one of which can cooperate with the limiting member 3. The two or more limiting portions are spaced apart along the first direction X, so that the movable part 2 can be restricted to two or more positions. This allows the energy-absorbing box to have more different sizes, and the vehicle to have more different buffer energy-absorbing spaces, thereby improving the flexibility of the energy-absorbing box in dealing with different traffic accidents.

[0038] In some optional embodiments of this application, the limiting member 3 is slidably connected to the pressure plate 21; and / or, the limiting member 3 is a limiting plate, the limiting part is a groove, and the groove is set along the third direction Z.

[0039] Specifically, in one embodiment, one or more guide rails can be provided on the pressure plate 21 along the second direction Y, and the limiting member 3 is slidably connected to the guide rail. This helps to improve the stability of the limiting member 3 moving along the second direction Y, and thus helps to ensure the limiting effect of the limiting member 3 on the moving part 2.

[0040] In another embodiment, the limiting member 3 is a limiting plate, and the limiting part is a groove provided along a third direction Z. The third direction Z intersects with the first direction X and the second direction Y, respectively, so that the first direction X, the second direction Y and the third direction Z intersect each other in pairs. Figure 1 The diagram illustrates a configuration where the first direction X, the second direction Y, and the third direction Z are mutually perpendicular. Perpendicularity includes not only absolute perpendicularity but also approximate perpendicularity as commonly understood. A groove is positioned along the third direction Z. The first driving member 4 drives the limiting plate to move along the second direction Y. When a portion of the limiting plate is embedded in the groove, the limiting plate restricts the movement of the movable part 2 along the first direction X. This increases the contact area between the limiting member 3 and the limiting part, thereby improving the limiting effect of the limiting member 3 on the movable part 2.

[0041] This embodiment can adopt any of the above-described implementation methods, or a combination of the two above-described implementation methods, and can be flexibly set according to actual needs.

[0042] In some optional embodiments of this application, reference is made to Figure 1 The fixed part 1 is a cylindrical tube, and the cylindrical tube has a hollow cavity 10 arranged along the first direction X; the movable part 2 is movably disposed in the hollow cavity 10.

[0043] Specifically, the cylindrical tube has a hollow cavity 10 arranged along the first direction X. The movable part 2 is also a cylindrical structure. The shape and structure of the movable part 2 are adapted to the shape and structure of the hollow cavity 10. The size of the hollow cavity 10 is slightly larger than the size of the movable part 2. The movable part 2 is located inside the hollow cavity 10 and can move along the first direction X inside the hollow cavity 10.

[0044] For example, in one embodiment, there is a certain gap between the outer wall of the movable part 2 and the inner wall of the hollow cavity 10. In other words, the movable part 2 and the hollow cavity 10 are fitted with a gap, so that the movable part 2 can move in the first direction X within the hollow cavity 10. Alternatively, in another embodiment, a slide rail is provided on the inner wall of at least one side of the hollow cavity 10, which is arranged in the first direction X. A slider is provided on the outer wall of the movable part 2, and the movable part 2 can move in the first direction X within the hollow cavity 10 through the sliding fit between the slider and the slide rail. Alternatively, in another embodiment, a guide rail is provided on the inner wall of at least one side of the hollow cavity 10, which is arranged in the first direction X. A rolling element such as a ball or roller is provided on the outer wall of the movable part 2, and the movable part 2 can move in the first direction X within the hollow cavity 10 through the fit between the rolling element and the guide rail.

[0045] The inner wall of the hollow cavity 10 is equivalent to the inner wall of the cylindrical tube, and the outer wall of the cylindrical tube is opposite to the inner wall of the cylindrical tube. The outer wall of the cylindrical tube forms the outer surface of the cylindrical tube.

[0046] In this embodiment, the fixed part 1 is a cylindrical tube with a hollow cavity 10, and the movable part 2 is movably disposed in the hollow cavity 10. This is beneficial to improving the stability of the movable part 2 moving along the first direction X, as well as improving the overall structural stability of the energy absorption box.

[0047] In some optional embodiments of this application, reference is made to Figures 1 to 5 The energy-absorbing box also includes a second driving member 6; the second driving member 6 is disposed within the hollow cavity 10 and connected to the movable part 2; the second driving member 6 is adapted to drive the movable part 2 to move relative to the fixed part 1 along the first direction X. Thus, through the driving action of the second driving member 6, the resistance of the movable part 2 during its movement along the first direction X can be reduced, and the reliability of the movable part 2's movement along the first direction X can be improved.

[0048] In some optional embodiments of this application, the first driving member 4 and / or the second driving member 6 are any one of a telescopic electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0049] For example, Figure 1 The diagram shows that the first driving component 4 is a telescopic electric cylinder. A telescopic electric cylinder is an actuator that can convert electrical energy into linear reciprocating motion. It can use a servo motor, stepper motor or DC motor as a power source to convert electrical energy into the rotational motion of the motor shaft. Then, through a mechanical transmission mechanism, the rotational motion of the motor shaft is converted into the linear motion of the piston. A common mechanical transmission mechanism can be a ball screw drive.

[0050] When the first driving component 4 is a telescopic electric cylinder, the cylinder body of the telescopic electric cylinder is fixedly connected to the pressure plate 21 of the movable part 2. It can be connected by fastener assembly, welding, adhesive bonding, limit snapping, etc. The piston of the telescopic electric cylinder is fixedly connected to the limit component 3. At the same time, the piston of the telescopic electric cylinder is set along the second direction Y, so that the telescopic electric cylinder can drive the limit component 3 to move along the second direction Y.

[0051] Reference Figure 1 and Figure 4 , Figure 4 A side sectional view of an energy-absorbing box according to an embodiment of this application is shown. The second driving component 6, located inside the hollow cavity 10 of the cylindrical tube, also employs a telescopic electric cylinder. The cylinder body of the telescopic electric cylinder is fixedly connected to the wall of the cylindrical tube. For example, a connection hole is provided on the wall of the cylindrical tube, and the cylinder body of the telescopic electric cylinder is connected to the connection hole through one or more connecting shafts 61, thereby fixing the telescopic electric cylinder within the hollow cavity 10. The piston of the telescopic electric cylinder is fixedly connected to the movable part 2, and the piston of the telescopic electric cylinder is positioned along the first direction X, so that the telescopic electric cylinder can drive the movable part 2 to move along the first direction X.

[0052] Compared to pneumatic cylinders and hydraulic cylinders, the first driving component 4 and / or the second driving component 6 adopts a telescopic electric cylinder, which can have a faster response speed, higher precision, higher driving efficiency and better environmental performance.

[0053] In some optional embodiments of this application, reference is made to Figure 6 The diagram shows a second schematic of an energy-absorbing box in an extended state according to an embodiment of this application. The energy-absorbing box further includes an elastic member 5; the elastic member 5 is arranged along a first direction, one end of the elastic member 5 is connected to the inner wall of the hollow cavity 10, and the other end of the elastic member 5 is connected to the movable part 2.

[0054] Specifically, the elastic element 5 can deform under external force and return to its original shape after the external force is removed, thereby playing a role in buffering and resetting. In this embodiment, the elastic element 5 can be a helical spring, a metal sheet, a rubber elastic block, etc., all of which have good elastic properties. This embodiment does not limit the specific type of elastic element 5.

[0055] One end of the elastic element 5 is connected to the inner wall of the hollow cavity 10, which refers to the inner wall opposite to the pressure plate 21 of the movable part 2, thus facilitating the connection of the elastic element 5. The other end of the elastic element 5 is connected to the movable part 2. When the movable part 2 moves along the first direction X towards the inner wall, the elastic element 5 is compressed, providing a certain buffering effect on the movement of the movable part 2, which helps to improve the energy absorption effect of the energy-absorbing box in the event of a collision. When the movable part 2 moves along the first direction X away from the inner wall, the elastic element 5 gradually recovers its deformation, which helps to restore the movable part 2 to its initial position.

[0056] The connection between the elastic element 5 and the inner wall of the hollow cavity 10 and the movable part 2 can be achieved by adhesive bonding, limiting snap-fit, or other methods, as long as the reliability of the connection between them can be guaranteed. The specific connection method is not limited in this embodiment.

[0057] like Figure 6 As shown, the elastic element 5 is a helical spring, positioned along the first direction X. One end of the helical spring is connected to the inner wall of the hollow cavity 10, and the other end is connected to the movable part 2. During a vehicle collision, the anti-collision beam 7 transmits the impact force to the movable part 2, pushing it along the first direction X towards the side closer to the inner wall. The helical spring is compressed, acting as a buffer and absorbing energy. After the impact force is removed, the helical spring, relying on its elastic restoring force, pushes the movable part 2 along the first direction X towards the side away from the inner wall, returning it to its initial position.

[0058] Secondly, embodiments of this application also provide a crash beam assembly, referring to... Figure 1 The anti-collision beam assembly includes an anti-collision beam 7 and an energy-absorbing box according to any of the preceding embodiments, wherein the movable part 2 of the energy-absorbing box is fixedly connected to the anti-collision beam 7.

[0059] Specifically, in a vehicle, the anti-collision beam 7 mainly refers to the vehicle's crossbeam. The movable part 2 of the energy-absorbing box is fixedly connected to the anti-collision beam 7. The movable part 2 of the energy-absorbing box can be fixedly connected to the anti-collision beam 7 through fastener assembly, welding, or other methods to ensure the reliability of the connection between the movable part 2 and the anti-collision beam 7. For example... Figure 1 In the middle, the movable part 2 has extensions 22 on both sides along the third direction Z. The extensions 22 abut against the surface of the anti-collision beam 7. The extensions 22 are provided with connecting holes. The anti-collision beam 7 is also provided with connecting holes at positions corresponding to the connecting holes on the extensions 22. Fasteners such as bolts are inserted into the connecting holes on the extensions 22 and the anti-collision beam 7 to achieve a fixed connection between the movable part 2 and the anti-collision beam 7.

[0060] In some embodiments, the fixing part 1 of the energy-absorbing box can also be fixedly connected to the longitudinal beam of the vehicle. This fixed connection can be achieved through fastener assembly, welding, or other methods to ensure reliable connection. Thus, the energy-absorbing box is located between the anti-collision beam 7 and the longitudinal beam, and can effectively buffer and absorb energy between the anti-collision beam 7 and the longitudinal beam when a vehicle collision occurs.

[0061] The anti-collision beam assembly of this application adopts the energy-absorbing box of any of the foregoing embodiments. The energy-absorbing box can perform different actions according to different collision scenarios, thereby enabling the anti-collision beam assembly to flexibly respond to different traffic accidents, while strengthening the protection of people inside and outside the vehicle, which helps to improve the safety of the anti-collision beam assembly.

[0062] In some optional embodiments of this application, the anti-collision beam assembly further includes a controller; the controller is electrically connected to the first drive member 4, and the controller is adapted to control the operation of the first drive member 4. The controller may be dependent on the vehicle control system.

[0063] Specifically, the controller can control the movement of the first drive component 4 according to the driver's operation, the road conditions, or the scenario of a sudden collision. This embodiment does not impose any limitations on these aspects. When the first drive component 4 performs an action, it can drive the limiting member 3 to move along the second direction Y to a position separate from the limiting part on the fixed part 1, so that the movable part 2 can move along the first direction X. When the first drive component 4 does not perform an action, the limiting member 3 can remain in a position that cooperates with the limiting part on the fixed part 1 to restrict the movement of the movable part 2 along the first direction X.

[0064] Of course, if the energy-absorbing box includes the second drive member 6, the second drive member 6 can also be electrically connected to the controller, so that the controller can also control the action of the second drive member 6 to control the movement of the active part 2 along the first direction X.

[0065] For example, after the collision ends, the controller can issue an extension command. Upon receiving the extension command, the second drive member 6 can control the movable part 2 to move along the first direction X, so that the movable part 2 is in an extended state relative to the fixed part 1. Then, the first drive member 4 drives the limiting member 3 to move along the second direction Y to a position that cooperates with the limiting part on the fixed part 1, so that the movable part 2 is in a non-extendable state, so as to provide an effective buffering and energy absorption effect in the case of a normal collision.

[0066] In some optional embodiments of this application, the anti-collision beam assembly further includes an identification device; the identification device is electrically connected to the controller, and the identification device is adapted to identify the collision object of the anti-collision beam 7, and generate a first signal or a second signal according to the collision object; the controller is adapted to control the first driving member 4 to perform an action when receiving the first signal, so as to drive the limiting member 3 to move to a position separate from the limiting part; the controller is adapted to control the first driving member 4 not to perform an action when receiving the second signal, wherein when the first driving member 4 does not perform an action, the limiting member 3 remains in a position cooperating with the limiting part.

[0067] Specifically, the identification device can employ radar sensors, vision sensors, collision sensors, etc. The identification device is electrically connected to the controller. In the event of a vehicle collision, the identification device can identify the object that collided with the crash beam 7 and generate a first signal or a second signal based on the collision object. For example, when the crash beam 7 collides with a pedestrian, the identification device can generate a first signal; when the crash beam 7 collides with a vehicle or road obstacle (such as a bridge pier, guardrail, roadside vegetation, etc.), the identification device can generate a second signal. The first and second signals can be any type of electrical signal.

[0068] When the controller receives the first signal, it controls the first driving member 4 to perform an action, so that the first driving member 4 can drive the limiting member 3 to move along the second direction Y to a position that is separated from the limiting part on the fixed part 1. At this time, the movable part 2 can move relative to the fixed part 1 along the first direction X, causing the anti-collision beam 7 to retract, thereby increasing the vehicle's buffer energy absorption space and providing better protection for pedestrians in collisions.

[0069] When the controller receives the second signal, it controls the first drive member 4 to not perform any action. When the first drive member 4 does not perform any action, the limit member 3 remains in the position that cooperates with the upper limit part of the fixed part 1. At this time, the movable part 2 cannot move relative to the fixed part 1 in the first direction X. As a result, when a collision occurs, the movable part 2 and the fixed part 1 will be crushed and deformed one after the other. Both the movable part 2 and the fixed part 1 can play an energy absorption and buffering role, which is conducive to better protecting the people inside the vehicle.

[0070] Thirdly, this application also provides a vehicle including the anti-collision beam assembly of any of the foregoing embodiments. The vehicle in this embodiment may include pure electric vehicles, hybrid vehicles, range-extended vehicles, and gasoline vehicles, etc., and this embodiment does not limit the specific type of vehicle. The vehicle type may also include small cars, mid-size cars, sedans, trucks, trailers, CDVs (Car Derived Vans), MPVs (Multi-Purpose Vehicles), SUVs (Sport Utility Vehicles), etc., and this embodiment does not limit the specific type of vehicle.

[0071] The vehicle of this application adopts the anti-collision beam assembly of any of the foregoing embodiments. The energy-absorbing box in the anti-collision beam assembly can perform different actions according to different collision scenarios, thereby enabling the vehicle to flexibly cope with different traffic accidents, while strengthening the protection of people inside and outside the vehicle, which helps to improve the safety of the vehicle.

[0072] It should be understood that the phrase "some embodiments" throughout the specification means that a particular feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, "some embodiments" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0073] Finally, it should be noted that the above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An energy-absorbing box, characterized in that, include: Fixed part, movable part, limiting part and first driving part; The movable part is movably connected to the fixed part, and the movable part is capable of moving relative to the fixed part along a first direction; The limiting member is movably connected to the movable part, and the first driving member is connected to the limiting member, adapted to drive the limiting member to move relative to the movable part in a second direction; Wherein, the first direction intersects with the second direction; The fixed part is provided with a limiting part. When the limiting member moves to cooperate with the limiting part, the limiting member restricts the movement of the movable part along the first direction. When the limiting member moves to separate from the limiting part, the movable part can move relative to the fixed part along the first direction.

2. The energy-absorbing box according to claim 1, characterized in that, The movable part includes a pressure plate, which is disposed at the end of the movable part along the first direction; The limiting member is disposed on at least one side of the pressure plate along the second direction and is movably connected to the pressure plate; the first driving member is disposed on the pressure plate.

3. The energy-absorbing box according to claim 2, characterized in that, The limiting member is slidably connected to the pressure plate; And / or, the limiting member is a limiting plate, the limiting part is a groove, the groove is arranged along a third direction, wherein the third direction intersects the first direction and the second direction respectively.

4. The energy-absorbing box according to claim 1, characterized in that, There are at least two limiting parts, and the at least two limiting parts are spaced apart along the first direction.

5. The energy-absorbing box according to claim 1, characterized in that, The fixed part is a cylindrical tube, and the cylindrical tube has a hollow cavity arranged along the first direction; the movable part is movably disposed in the hollow cavity.

6. The energy-absorbing box according to claim 5, characterized in that, Also includes: Second drive unit; The second driving member is disposed in the hollow cavity and connected to the movable part; The second driving member is adapted to drive the movable part to move relative to the fixed part along the first direction.

7. The energy-absorbing box according to claim 6, characterized in that, The first driving component and / or the second driving component is any one of a telescopic electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

8. The energy-absorbing box according to claim 5, characterized in that, Also includes: Elastic components; The elastic element is arranged along the first direction, one end of the elastic element is connected to the inner wall of the hollow cavity, and the other end of the elastic element is connected to the movable part.

9. A crash beam assembly, characterized in that, It includes a crash beam and an energy-absorbing box as described in any one of claims 1 to 8, wherein the movable part of the energy-absorbing box is fixedly connected to the crash beam.

10. The anti-collision beam assembly according to claim 9, characterized in that, It also includes the controller; The controller is electrically connected to the first drive unit, and the controller is adapted to control the operation of the first drive unit.

11. The anti-collision beam assembly according to claim 10, characterized in that, It also includes identification devices; The identification device is electrically connected to the controller, and the identification device is adapted to identify the collision object of the anti-collision beam and generate a first signal or a second signal according to the collision object; The controller is adapted to control the first driving member to perform an action upon receiving the first signal, so as to drive the limiting member to move to a position separate from the limiting part; The controller is adapted to control the first drive member not to perform an action when receiving the second signal, wherein when the first drive member does not perform an action, the limiting member remains in a position cooperating with the limiting portion.

12. A vehicle, characterized in that, Includes the anti-collision beam assembly as described in any one of claims 9 to 11.

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