Collision energy absorbing device, vehicle steering device, and vehicle

Abstract

The application provides a collision energy-absorbing device, a vehicle steering device and a vehicle. The collision energy-absorbing device is used for absorbing the collision energy of a struck mechanism. The struck mechanism comprises a fixed body and a sliding body in sliding connection with the fixed body. The collision energy-absorbing device comprises: a fixed seat in fixed connection with the fixed body; and an energy-absorbing assembly arranged on the fixed seat and connected with the sliding body, used for adjusting the energy-absorbing capacity based on a collision condition and absorbing the collision energy transmitted by the sliding body. In this way, the collision energy-absorbing device can selectively adjust its energy-absorbing capacity based on the collision condition, so that the energy-absorbing device can absorb the collision energy with the optimal energy-absorbing capacity, thereby effectively converting the collision energy received by the struck mechanism to the collision energy-absorbing device.

Description

TECHNICAL FIELD

[0001] The application relates to the field of energy absorption devices, and particularly relates to a collision energy absorption device, a vehicle steering device and a vehicle. BACKGROUND

[0002] After the design of the struck mechanism is determined, the energy absorption capacity and mode are fixed, but the conditions for the struck mechanism to collide are changing, such as different motion speeds, different collision objects and different collision positions, which all affect the size of the collision impact energy. In order to better protect the struck mechanism, it is expected that the energy absorption capacity of the collision energy absorption device of the struck mechanism can be changed according to the change of the collision conditions, so that the collision energy absorption device can be optimally used, thereby better protecting the struck mechanism. SUMMARY

[0003] The application provides a collision energy absorption device, a vehicle steering mechanism and a vehicle, which selectively adjust the energy absorption capacity of the energy absorption device according to the collision conditions, so that the energy absorption device can absorb the collision energy with the best energy absorption capacity.

[0004] In order to solve the above technical problems, the application adopts the technical scheme of providing a collision energy absorption device for absorbing the collision energy of a struck mechanism, the struck mechanism comprising a fixed main body and a sliding main body in sliding connection with the fixed main body, and the collision energy absorption device comprising: a fixed seat in fixed connection with the fixed main body; an energy absorption assembly arranged on the fixed seat and connected with the sliding main body, for adjusting the energy absorption capacity based on the collision conditions and absorbing the collision energy transmitted by the sliding main body; the energy absorption assembly comprising: an energy absorption steel belt, a first bending portion and a plurality of second bending portions being sequentially arranged between a first end and a second end of the energy absorption steel belt, the sliding main body being in fixed connection with the first end of the energy absorption steel belt, and the fixed main body being connected with the second end of the energy absorption steel belt, wherein the first bending portion is arranged close to the first end of the energy absorption steel belt relative to the second bending portion, and the length direction of the energy absorption steel belt is the same as the sliding direction of the sliding main body; a fixed retaining column in fixed connection with the fixed seat, the fixed retaining column being arranged in the first bending portion and in surface contact with the first bending portion; a plurality of adjusting assemblies corresponding to the plurality of second bending portions, the adjusting assemblies being selectively arranged in the corresponding second bending portions based on the collision conditions, so as to adjust the energy absorption capacity of the energy absorption steel belt.

[0005] The collision energy absorption device is used in the steering mechanism of a vehicle, the struck mechanism is the steering mechanism of the vehicle, the collision conditions comprise motion parameters of the vehicle and / or physical index parameters of a driver, and the collision energy absorption device further comprises: a processing circuit connected with the adjusting assemblies, for acquiring the motion parameters of the vehicle and / or the physical index parameters of the driver, determining an energy absorption parameter based on the motion parameters and / or the physical index parameters, and controlling the adjusting assemblies to be selectively arranged in the corresponding second bending portions by using the energy absorption parameter, so as to adjust the energy absorption capacity of the energy absorption steel belt.

[0006] The collision energy includes a first collision energy, the processing circuit obtains first motion parameters and / or first physical index parameters of the driver when the vehicle collides for the first time, determines first energy absorption parameters based on the first motion parameters and / or the first physical index parameters, and controls the corresponding number of adjustment components to be arranged in the corresponding second curved portion in the adjustment direction to make the energy absorption steel belt obtain the energy absorption capacity corresponding to the first collision energy by using the first energy absorption parameters; and the adjustment direction is from the first end to the second end.

[0007] The collision energy also includes a second collision energy; after the energy absorption steel belt absorbs the first collision energy, the processing circuit obtains second motion parameters and / or second physical index parameters of the driver when the vehicle collides for the second time, determines second energy absorption parameters based on the second motion parameters and / or the second physical index parameters, and continues to control the unadjusted adjustment components to be arranged in the corresponding second curved portion in the adjustment direction to make the energy absorption steel belt obtain the energy absorption capacity corresponding to the second collision energy by using the second energy absorption parameters.

[0008] The adjustment component is arranged in the corresponding second curved portion to increase the energy absorption capacity of the energy absorption steel belt; and the adjustment component is separated from the corresponding second curved portion to reduce the energy absorption capacity of the energy absorption steel belt.

[0009] The adjustment component includes: a magnetic attraction retaining column arranged in parallel with the fixed retaining column in the axial direction; an elastic member connected to one end of the magnetic attraction retaining column; and an electromagnetic member arranged at the other end of the elastic member and used for receiving an electric signal and generating a magnetic attraction force based on the electric signal to attract the magnetic attraction retaining column; the magnetic attraction retaining column is ejected by the elastic member when the electromagnetic member does not receive the electric signal.

[0010] The adjustment component further includes: a warehouse pipe provided with a sliding cavity arranged in the axial direction, and an end wall of the sliding cavity is provided with an opening; the electromagnetic member and the elastic member are arranged in the sliding cavity; one end of the magnetic attraction retaining column connected to the elastic member is arranged in the sliding cavity and can slide in the sliding cavity; and the warehouse pipe is arranged on the fixed seat.

[0011] The magnetic attraction retaining column is provided with a first limiting portion extending in the axial direction thereof, and a side wall of the sliding cavity is provided with a second limiting portion extending in the axial direction, and the first limiting portion cooperates with the second limiting portion to limit the circumferential movement of the magnetic attraction retaining column in the sliding cavity.

[0012] To solve the above technical problems, the technical scheme adopted by the present application is to provide a vehicle steering device, which comprises the above-mentioned collision energy absorption device, and further comprises a steering mechanism, the steering mechanism comprising: a fixed main body and a sliding main body in sliding connection with the fixed main body.

[0013] To solve the above-mentioned technical problems, the technical solution adopted in this application is to provide a vehicle that includes the above-mentioned vehicle steering device.

[0014] The beneficial effects of the embodiments of this application are: This application provides an energy absorption device, wherein the energy absorption device includes an energy absorption component, and the energy absorption component can selectively adjust its own energy absorption capacity based on the collision conditions so that the energy absorption device absorbs the collision energy with the best energy absorption capacity, thereby effectively converting the collision energy received by the collided mechanism to the energy absorption device. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the vehicle steering device.

[0016] Figure 2 yes Figure 1 A schematic diagram of the collision energy absorption device;

[0017] Figure 3 yes Figure 2 Schematic diagram of the structure of the medium energy-absorbing steel strip;

[0018] Figure 4 yes Figure 2 A schematic diagram of the structure of the adjustment component;

[0019] Figure 5 yes Figure 2 A schematic diagram of the structure of the fixed base. Detailed Implementation

[0020] 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, and 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.

[0021] The terms "first" and "second" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such processes, methods, products, or apparatus.

[0022] The collision energy absorbing device of the present application can be used in the steering mechanism of a vehicle, i.e. the struck mechanism is the steering mechanism, and can also be used in other struck mechanisms. Hereinafter, the steering mechanism of a vehicle is taken as an example for description.

[0023] The steering mechanism of a vehicle is one of the main devices for ensuring the safety of a driver, and is a protection device for reducing the harm to a driver and a struck person or living being when a vehicle collides. However, once the steering column is designed, the energy absorbing capacity and mode are fixed, but the conditions of a vehicle collision are varied, such as different vehicle speeds, different collision objects, different collision positions, and different driver weights, etc., which will affect the size of the collision impact energy. In order to better protect the driver, we hope that the collision energy absorbing device of the steering column can change the energy absorbing capacity and change with the change of the collision conditions, so as to play the optimal performance of the collision energy absorbing device, thereby better protecting the driver.

[0024] The present application provides a collision energy absorbing device 10, as shown in Figure 1 and Figure 2 , which is a structural schematic diagram of an embodiment of a vehicle steering device. Figure 1 is a structural schematic diagram of a collision energy absorbing device in Figure 2 is Figure 1 , the collision energy absorbing device 10 is used to absorb the collision energy of the struck mechanism, wherein the struck mechanism (the steering mechanism 40 in Figure 1 is the struck mechanism in this embodiment) includes a fixed body 30 and a sliding body 20 which is in sliding connection with the fixed body 30.

[0025] The struck mechanism is a mechanism which is directly in contact with the driver in a collision, and is used to transmit the collision energy received by the driver to the collision energy absorbing device 10, so that the collision energy absorbing device 10 absorbs the collision energy.

[0026] The collision energy absorbing device 10 includes a fixed seat 100 and an energy absorbing assembly 200.

[0027] The fixed seat 100 is connected with the fixed body 30, and is used to provide mechanical support for the energy absorbing assembly 200.

[0028] The energy absorbing assembly 200 is arranged on the fixed seat 100 and is connected with the sliding body 20, and is used to adjust the energy absorbing capacity based on the collision conditions and absorb the collision energy transmitted by the sliding body 20.

[0029] In different application scenarios, the struck mechanism can be any mechanism suitable for installing the collision energy-absorbing device 10. For example, in the present embodiment, the struck mechanism is the steering mechanism 40 of a vehicle. After the vehicle is subjected to a collision, the driver, due to inertia, collides against the sliding main body 20 of the struck mechanism with a large amount of kinetic energy, i.e., collision energy. The sliding main body 20 conducts the collision energy to the collision energy-absorbing device 10, which has been adjusted to have an energy-absorbing capacity based on the collision condition, so that the collision energy-absorbing device 10 absorbs the collision energy, thereby effectively protecting the life safety of the driver.

[0030] Optionally, the energy-absorbing assembly 200 includes an energy-absorbing steel belt 210, a fixed retaining column 220, and a plurality of adjusting assemblies 230.

[0031] As shown in FIG. 2, Figure 3 Figure 3 is Figure 2 a structural schematic diagram of the energy-absorbing steel belt. The energy-absorbing steel belt 210 is an important part for absorbing collision energy. A first bending portion 213 and a second bending portion 214 are sequentially arranged between a first end 211 and a second end 212 of the energy-absorbing steel belt 210, and the first bending portion 213 is arranged close to the first end 211 of the energy-absorbing steel belt. In the present embodiment, the energy-absorbing steel belt 210 is formed by bending a rigid steel belt having a certain length multiple times to form an energy-absorbing steel belt 210 having a plurality of parallel sub-segments. Each bending connection between a sub-segment and another sub-segment starting from a first segment of the energy-absorbing steel belt 210 is the first bending portion 213 and a plurality of second bending portions 214 of the energy-absorbing steel belt 210, respectively. In other embodiments, the energy-absorbing steel belt 210 can adopt other structural forms, which are not described in detail here.

[0032] The sliding main body 20 is fixedly connected to the first end 211 of the energy-absorbing steel belt 210, and the fixed main body 30 is fixedly connected to the second end 212 of the energy-absorbing steel belt 210. The length direction of the energy-absorbing steel belt 210 is the same as the sliding direction, which can be understood as that the sliding direction of the sliding main body 20 is the same as the extension direction of each sub-segment of the energy-absorbing steel belt 210.

[0033] ​The fixed retaining column 220 is fixedly connected with the fixed seat 100, the fixed retaining column 220 is arranged in the first curved portion 213, and the outer surface of the fixed retaining column 220 is in surface contact with the side wall surface of the first curved portion 213. The fixed retaining column 220 is connected with the energy-absorbing steel belt 210 in the above manner, and the energy-absorbing steel belt 210 is subjected to the friction force and the abutting force of the fixed retaining column 220, thereby increasing the energy-absorbing capacity. The surface of the fixed retaining column 220 and the surface of the energy-absorbing steel belt 210 have a certain roughness, so as to increase the friction force between the fixed retaining column 220 and the energy-absorbing steel belt 210. At the same time, the width of the energy-absorbing steel belt 210 can be increased to increase the comprehensive friction coefficient between the energy-absorbing steel belt 210 and the fixed retaining column 220, thereby improving the energy-absorbing capacity of the energy-absorbing steel belt 210.

[0034] The plurality of adjusting components 230 are arranged in one-to-one correspondence with the plurality of second curved portions 214, and the adjusting components 230 can be selectively arranged in the corresponding second curved portions 214 based on collision adjustment. The part of the adjusting component 230 arranged in the second curved portion 214 also has a certain roughness, and the adjusting component 230 arranged in the second curved portion 214 can further increase the energy-absorbing capacity of the energy-absorbing steel belt 210 in a similar manner to the connection of the fixed retaining column 220 with the first curved portion 213. The adjusting component 230 can be selectively arranged in the corresponding second curved portion 214, so that the energy-absorbing steel belt 210 can be endowed with the energy-absorbing capacity corresponding to the collision energy when the vehicle collides, thereby effectively ensuring the safety of the driver.

[0035] The adjusting component 230 arranged in the corresponding second curved portion 214 can increase the energy-absorbing capacity of the energy-absorbing steel belt 210, and the adjusting component 230 separated from the corresponding second curved portion 214 can reduce the energy-absorbing capacity of the energy-absorbing steel belt 210. In other words, the principle of the adjusting component 230 for adjusting the energy-absorbing capacity of the energy-absorbing steel belt 210 is similar to that of the fixed retaining column 220. When the adjusting component 230 is arranged in the second curved portion 214, the outer surface of the adjusting component 230 is in surface contact with the surface of the second curved portion 214. When the adjusting component 230 is arranged in the corresponding second curved portion 214, the number of friction forces acting on the energy-absorbing steel belt 210 is increased, thereby increasing the energy-absorbing capacity of the energy-absorbing steel belt 210. Conversely, when the adjusting component 230 is separated from the corresponding second curved portion 214, the number of friction forces acting on the energy-absorbing steel belt 210 is reduced, thereby reducing the energy-absorbing capacity of the energy-absorbing steel belt 210. Selectively controlling the corresponding number of adjusting components 230 arranged in or separated from the second curved portion 214 can effectively adjust the energy-absorbing capacity of the energy-absorbing steel belt 210, so that the energy-absorbing device can adjust the energy-absorbing capacity corresponding to the collision energy according to the collision condition.

[0036] Different from the prior art, the application provides an energy absorption device, wherein the collision energy absorption device 10 comprises an energy absorption assembly 200, which can selectively adjust its energy absorption capacity based on a collision condition, so that the energy absorption device can absorb collision energy with the best energy absorption capacity, thereby effectively converting the collision energy received by the driver to the collision energy absorption device 10, and effectively ensuring the safety of the driver.

[0037] Optionally, the collision condition comprises a motion parameter of the vehicle and / or a physical index parameter of the driver. It can be understood that, when adjusting the energy absorption capacity, the collision energy absorption device 10 can use the motion parameter of the vehicle and the physical index parameter of the driver as the basis for judgment, or use any of the motion parameter of the vehicle or the physical index parameter of the driver alone. The similar expressions involved in the following text can also be understood in this way. In this embodiment, the collision energy absorption device 10 uses the motion parameter of the vehicle and the physical index parameter of the driver as the basis for judgment, so as to effectively obtain the energy absorption parameter of the environment in which the driver is located, and effectively ensure the safety of the driver. It is worth noting that when the collision energy absorption device 10 is applied to other application scenarios, the collision energy absorption device 10 should use the corresponding basis for judgment corresponding to the corresponding application scenario, which is not described in detail here.

[0038] The motion parameter comprises motion information such as the speed signal of the vehicle, and the physical index parameter comprises parameters such as the weight information of the driver.

[0039] Optionally, the collision energy absorption device 10 further comprises a processing circuit (not shown in the figure).

[0040] The processing circuit is connected with the adjusting assembly 230, and is used to obtain the motion parameter of the vehicle and / or the physical index parameter of the driver, and determine the energy absorption parameter based on the motion parameter and / or the physical index parameter, and control the adjusting assembly 230 to be selectively arranged in the corresponding second curved portion 214 by using the energy absorption parameter, so as to adjust the energy absorption capacity of the energy absorption steel belt 210.

[0041] In other words, the processing circuit is a multifunctional circuit for obtaining the collision condition and selectively controlling the adjusting assembly 230 to be arranged in the second curved portion 214 based on the collision condition. Through the processing circuit, the collision condition can be intelligently monitored in real time, and the corresponding adjusting assembly 230 can be reasonably controlled to be connected with the corresponding second curved portion 214 based on the collision condition, so as to adjust the energy absorption steel belt 210 to obtain the best energy absorption capacity, and effectively protect the safety of the driver. It is worth noting that the best energy absorption capacity means that the collision energy received by the driver can be fully absorbed, and the reaction force of the steering mechanism 40 received by the driver is within the range of the body of the driver, which can be calculated by the above-mentioned collision adjustment.

[0042] The processing circuit can be composed of a control chip and the acquisition circuit, and details are not described herein.

[0043] When the vehicle is in an accident, after the vehicle is subjected to a collision, the vehicle can be subjected to multiple inertia collisions, causing the driver to collide with the steering mechanism 40 multiple times. If the collision energy of all collisions cannot be absorbed, or the steering mechanism 40 loses the energy absorption ability after being subjected to a collision, the driver will be irreparably damaged after being subjected to a second or more collisions.

[0044] Alternatively, to solve the above problems, the collision energy absorption device 10 of the present application can absorb the collision energy of multiple collisions. Taking two collisions as an example, specifically, the collision energy includes the first collision energy and the second collision energy, wherein the first collision energy is the collision energy transmitted by the driver to the steering mechanism 40 when the vehicle is subjected to a first collision, and the second collision energy is the collision energy suffered by the driver after being subjected to a second or more collisions after the first collision. The method for adjusting the energy absorption capacity of the energy absorption steel belt 210 by the processing circuit is as follows.

[0045] Before the vehicle is subjected to a first collision, the processing circuit obtains the motion parameters of the vehicle and the body index parameters of the driver in advance when the first collision occurs. Further, the processing circuit obtains the first motion parameters of the vehicle and the first body index parameters of the driver when the first collision occurs, and determines the first energy absorption parameters based on the first motion parameters and the first body index parameters, and controls the corresponding number of adjustment assemblies 230 to be sequentially arranged in the corresponding second bending part 214 based on the first energy absorption parameters in the adjustment direction, so that the energy absorption steel belt 210 obtains the energy absorption capacity corresponding to the first collision energy.

[0046] Further, before the vehicle is subjected to a second collision, the processing circuit obtains the second motion parameters of the vehicle and the second body index parameters of the driver based on the second collision when the second collision occurs, and determines the second energy absorption parameters based on the second motion parameters and the second body index parameters, and continues to control the unadjusted adjustment assemblies 230 to be arranged in the corresponding second bending part based on the second energy absorption parameters in the adjustment direction, so that the energy absorption steel belt 210 obtains the energy absorption capacity corresponding to the second collision energy.

[0047] The adjustment direction is the direction from the first end 211 of the energy absorption steel belt 210 to the second end 212 of the energy absorption steel belt 210.

[0048] Specifically, the energy-absorbing steel belt 210 absorbs energy by friction with the fixed retaining column 220 and the corresponding number of adjusting assemblies 230 and its own deformation, and its deformation sequence is in turn in the adjusting direction in the corresponding sub-segment when the collision occurs. In the first collision, the processing circuit adjusts the corresponding adjusting assembly 230 in the adjusting direction to pass through the corresponding second bending part 214, so that the energy-absorbing steel belt 210 absorbs the first collision energy with the first energy-absorbing capacity to protect the driver from the first collision. After the first collision, the part of the energy-absorbing steel belt 210 with the adjusting assembly 230 has been deformed and all or partially failed, while the part behind in the adjusting direction still has the energy-absorbing capacity, so in the second collision, the processing circuit controls the corresponding number of adjusting assemblies 230 that are not adjusted to pass through the corresponding second bending part 214 in the adjusting direction, and the energy-absorbing steel belt 210 still has the energy-absorbing capacity corresponding to the second collision energy, thereby effectively ensuring the driver from the second collision.

[0049] Further, if there are more collisions after the second collision, as long as there are enough number of adjusting assemblies 230 and enough length of energy-absorbing steel belt 210, the processing circuit can still adjust the energy-absorbing capacity of the energy-absorbing steel belt 210 in the adjusting direction, thereby ensuring the safety of the driver in an accident.

[0050] Optionally, as shown in Figure 4 , the structure of the adjusting assembly in Figure 4 is shown. Figure 2 The adjusting assembly 230 includes a magnetic retaining column 231, an elastic member 232, an electromagnetic member 233, and a warehouse pipe 234.

[0051] The magnetic retaining column 231 is a retaining column that can be attracted by magnetic force, and the axial direction of the magnetic retaining column 231 is arranged parallel to the axial direction of the fixed retaining column 220 in the collision energy-absorbing device.

[0052] The elastic member 232 is an element with elasticity, which is a spring in this embodiment, and can be other elements with elasticity in other embodiments. One end of the elastic member 232 is connected with the magnetic retaining column 231, wherein the connection relationship between the elastic member 232 and the magnetic retaining column 231 can be abutment or welding by welding rod.

[0053] The electromagnetic element 233 is an element with controllable magnetic force. The electromagnetic element 233 is arranged at the other end of the elastic element 232 and is connected with the processing circuit, and is used to receive the electric signal of the processing circuit. The processing circuit sends an electric signal to the electromagnetic element 233 to control the electromagnetic element 233 to generate a magnetic attraction force to suck back the magnetic attraction holding column 231. When the processing circuit does not apply an electric signal to the electromagnetic element 233, the electromagnetic element 233 loses the magnetic attraction force, and the magnetic attraction holding column 231 is ejected by the elastic element 232. The magnetic attraction force generated by the electromagnetic element 233 is much greater than the elastic force of the elastic element 232 and the frictional force between the magnetic attraction holding column 231 and the energy-absorbing steel belt 210, so as to ensure that the magnetic attraction holding column 231 can be smoothly sucked back into the warehouse pipe 234 by the magnetic attraction force of the electromagnetic element 233.

[0054] The warehouse pipe 234 is an element for providing mechanical support for the magnetic attraction holding column 231, the elastic element 232 and the electromagnetic element 233.

[0055] The warehouse pipe 234 is arranged on the fixed seat 100. The warehouse pipe 234 is provided with a sliding cavity arranged in the axial direction, and the end wall of the sliding cavity is provided with an opening. The electromagnetic element 233 and the elastic element 232 are arranged in the sliding cavity. The electromagnetic element 233 is fixed in the sliding cavity and the opening of the end wall of the sliding cavity.

[0056] The end of the magnetic attraction holding column 231 connected with the elastic element 232 is arranged in the sliding cavity and can slide along the sliding cavity. When the electromagnetic element 233 generates a magnetic attraction force, the magnetic attraction holding column 231 is controlled by the magnetic attraction force of the electromagnetic element 233 and is sucked back into the sliding cavity.

[0057] Specifically, the magnetic attraction holding column 231 is always pushed by the elastic element 232 to be arranged in the second bending part when the electromagnetic element 233 does not receive an electric signal. The elastic element 232 ensures that the magnetic attraction holding column 231 does not deviate from the second bending part 214 when the energy-absorbing device 10 is in energy absorption, thereby effectively ensuring the reliability of the adjusting assembly 230. At the same time, the electromagnetic element 233 is connected with the processing circuit, so that the processing circuit can adjust the connection relationship of the magnetic attraction holding column 231 and the second bending part 214 under different collision adjustments, thereby realizing the function of adjusting the energy absorption capacity of the energy-absorbing device 10. Through the above-mentioned manner, the energy absorption capacity of the energy-absorbing device 10 can be adjusted without complex structure, thereby effectively saving the cost of the energy-absorbing device 10.

[0058] Optionally, the magnetic attraction retaining column 231 is provided with a first limiting portion extending along the axial direction thereof, and the side wall of the sliding cavity is provided with a second limiting portion extending along the axial direction, the first limiting portion and the second limiting portion are matched to limit the circumferential movement of the magnetic attraction retaining column 231 in the sliding cavity, so as to prevent the magnetic attraction retaining column 231 from moving circumferentially due to excessive friction when the crash energy absorption device 10 is absorbing energy, thereby losing the binding effect on the energy absorption steel belt 210, and causing energy absorption failure.

[0059] Optionally, as shown in Figure 5 , Figure 5 is Figure 2 the structure diagram of the fixed seat. In this embodiment, the fixed seat 100 is a "j" structure member, which includes a first fixed rib plate part 110, a second fixed rib plate part 120 and a beam part 130. The first fixed rib plate part 110 and the second fixed rib plate part 120 are arranged in parallel to form a containing space, and the energy absorption steel belt 210 is arranged in the containing space. The beam part 130 is arranged at one end of the first fixed rib plate part 110 and the second fixed rib plate part 120 to connect and fix the first fixed rib plate part 110 and the second fixed rib plate part 120.

[0060] The first fixed rib plate part 110 is provided with a first fixed hole 111 corresponding to the first bending part 213, and the corresponding second fixed rib plate part 120 is provided with a second fixed hole 121 corresponding to the fixed hole. The fixed retaining column 220 is arranged between the first fixed hole 111 and the second fixed hole 121 to be fixed with the fixed seat 100. The fixed retaining column 220 is provided with a second limiting portion along the axial direction thereof, and the first fixed hole 111 and the second fixed hole 121 are provided with a third limiting portion corresponding to the second limiting portion. The second limiting portion and the third limiting portion are matched to limit the circumferential movement of the fixed retaining column 220, so as to prevent the fixed retaining column 220 from moving axially due to excessive friction when the crash energy absorption device 10 is absorbing energy, thereby losing the binding effect on the energy absorption steel belt 210, and causing energy absorption failure.

[0061] The first fixed rib portion 110 is also provided with a plurality of first through holes 112 corresponding to the second curved portions 214, and the second fixed rib portion 120 is also provided with second through holes 122 corresponding to the plurality of first through holes 112. The first fixed rib portion 110 is further provided with a first fixed portion surrounding the first through hole 112. The outer periphery of the opening end of the storage tube 234 is provided with a second fixed portion corresponding to the first fixed portion. After being fixed by the first fixed portion and the second fixed portion through the connector, the storage tube 234 is fixed on the side of the first fixed rib portion 110 away from the second fixed rib portion 120. The magnetic holding column 231 in the adjustment assembly 230 can pass through the first through hole 112 and then pass through the second curved portion 214 and the second through hole 122. This allows the magnetic holding column 231 to be supported by the first fixed rib portion 110 and the second fixed rib portion 120 when it passes through the second curved portion 214. This effectively improves the radial force on the magnetic holding column 231 and prevents the collision energy absorption device 10 from detaching from the storage tube 234 due to the radial force on the magnetic holding column 231, thereby affecting the adjustment of the energy absorption capacity of the collision energy absorption device 10.

[0062] The connectors can be screws or other fasteners.

[0063] In this application, the number of adjustment components 230 and the number of second curved portions 214 can be determined based on the actual application scenario of the collision energy absorption device 10. For example, in the embodiment of this application, the number of adjustment components 230 is three, and the corresponding number of second curved portions 214 is also three.

[0064] This application also provides a vehicle steering device 50, wherein the first love steering device includes the above-mentioned collision energy absorption device 10, and the vehicle steering device 50 further includes a steering mechanism 40, wherein the steering mechanism 40 includes: the above-mentioned fixed body 30 and the above-mentioned sliding body 20 slidably connected to the fixed body 30.

[0065] This application also provides a vehicle, wherein the vehicle includes the vehicle steering device 50 described above.

[0066] In summary, this application provides an energy-absorbing device, which includes an energy-absorbing component 200. The energy-absorbing component 200 can selectively adjust its own energy-absorbing capacity based on the collision conditions so that the energy-absorbing device can absorb the collision energy with the best energy-absorbing capacity, thereby effectively converting the collision energy received by the driver to the collision energy-absorbing device 10, thereby effectively ensuring the driver's life safety.

[0067] Furthermore, the collision energy absorption device of this application includes a processing circuit, and the adjustment component 230 of this application is configured in the above manner and, in conjunction with the processing circuit, enables the collision energy absorption device 10 to continuously absorb energy from multiple collisions, thereby effectively ensuring that the driver is protected from multiple collisions in the event of an accident.

[0068] It is worth noting that the accompanying drawings are only for illustrating the structural and connection relationships of the product of this invention, and do not limit the specific structural dimensions of the product of this invention.

[0069] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A crash energy absorption device, characterized in that The application relates to a collision energy absorbing device for absorbing the collision energy of a collision body, the collision body comprising a fixed body and a sliding body in sliding connection with the fixed body, the collision energy absorbing device comprising: a fixed seat in fixed connection with the fixed body; an energy absorbing assembly arranged on the fixed seat and connected with the sliding body, used for adjusting the energy absorbing capacity based on a collision condition and absorbing the collision energy transmitted by the sliding body; the energy absorbing assembly comprising: an energy absorbing steel belt, a first bending part and a plurality of second bending parts being sequentially arranged between the first end and the second end of the energy absorbing steel belt, the sliding body being in fixed connection with the first end of the energy absorbing steel belt, and the fixed body being connected with the second end of the energy absorbing steel belt, wherein the first bending part is arranged close to the first end of the energy absorbing steel belt relative to the second bending part, and the length direction of the energy absorbing steel belt is the same as the sliding direction of the sliding body; a fixed retaining column in fixed connection with the fixed seat, the fixed retaining column being arranged in the first bending part and in surface contact with the first bending part; a plurality of adjusting assemblies corresponding to the plurality of second bending parts, the adjusting assembly being selectively arranged in the corresponding second bending part based on the collision condition, so as to adjust the energy absorbing capacity of the energy absorbing steel belt; the adjusting assembly is arranged in the corresponding second bending part, so as to increase the energy absorbing capacity of the energy absorbing steel belt; the adjusting assembly is separated from the corresponding second bending part, so as to reduce the energy absorbing capacity of the energy absorbing steel belt; the adjusting assembly comprising: a magnetic retaining column arranged in parallel with the fixed retaining column in the axial direction; an elastic member connected with the magnetic retaining column at one end; and an electromagnetic member arranged at the other end of the elastic member and used for receiving an electric signal and generating a magnetic attraction force based on the electric signal, so as to attract the magnetic retaining column; the magnetic retaining column is ejected by the elastic member when the electromagnetic member does not receive the electric signal.

2. The crash energy management device of claim 1, wherein The collision energy absorbing device is used for a steering mechanism of a vehicle, the collision body is the steering mechanism of the vehicle, the collision condition comprises a motion parameter of the vehicle and / or a physical index parameter of a driver, and the collision energy absorbing device further comprises: a processing circuit connected with the adjusting assembly, used for acquiring the motion parameter of the vehicle and / or the physical index parameter of the driver, determining an energy absorbing parameter based on the motion parameter and / or the physical index parameter, and controlling the adjusting assembly to be selectively arranged in the corresponding second bending part based on the energy absorbing parameter, so as to adjust the energy absorbing capacity of the energy absorbing steel belt.

3. The crash energy management device of claim 2, wherein The collision energy comprises first collision energy, the processing circuit acquires a first motion parameter of the vehicle and / or a first physical index parameter of the driver when the vehicle collides for the first time, determines a first energy absorbing parameter based on the first motion parameter and / or the first physical index parameter, and controls a corresponding number of adjusting assemblies to be sequentially arranged in the corresponding second bending part along an adjusting direction based on the first energy absorbing parameter, so that the energy absorbing steel belt acquires an energy absorbing capacity corresponding to the first collision energy; wherein the adjusting direction is the direction from the first end to the second end.

4. The crash energy management device of claim 3, wherein The collision energy further includes a second collision energy; After the energy-absorbing steel belt absorbs the first collision energy, the processing circuit acquires a second motion parameter and / or a second physical index parameter of the driver when the vehicle collides for the second time, determines a second energy-absorbing parameter based on the second motion parameter and / or the second physical index parameter, and continues to control the unadjusted adjusting assembly along the adjusting direction in sequence to pass through the corresponding second bending part, so that the energy-absorbing steel belt acquires an energy-absorbing capacity corresponding to the second collision energy.

5. The crash energy management device of claim 1, wherein The adjusting assembly further includes: The cartridge is provided with a sliding cavity arranged along the axial direction, and an end wall of the sliding cavity is provided with an opening. The electromagnetic element and the elastic element are arranged in the sliding cavity, and one end of the magnetic attraction retaining column connected with the elastic element is arranged in the sliding cavity and can slide along the sliding cavity. The cartridge is arranged on the fixed seat.

6. The crash energy management device of claim 5, wherein The magnetic attraction retaining column is provided with a first limiting part extending along the axial direction thereof, and a side wall of the sliding cavity is provided with a second limiting part extending along the axial direction. The first limiting part cooperates with the second limiting part to limit the circumferential movement of the magnetic attraction retaining column in the sliding cavity.

7. A vehicle steering apparatus characterized by comprising: The vehicle steering device comprises the collision energy-absorbing device according to any one of claims 1-6, and further comprises a steering mechanism, wherein the steering mechanism comprises the fixed body and the sliding body in sliding connection with the fixed body.

8. A vehicle characterized by comprising: The vehicle steering device comprises the vehicle steering device according to claim 7.

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