A vehicle door assembly and vehicle
By installing an energy-absorbing device between the outer and inner panels of the car door, including energy-absorbing components and a crash plate, the problem of severe damage to the car door during side collisions is solved, and maintenance costs can be reduced by simply replacing the outer panel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AVATR CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-07
AI Technical Summary
In existing technology, the door anti-collision beam is welded to the outer and inner panels of the door as a whole, which causes serious damage to the inner panel, interior trim, window regulator and other accessories when the vehicle is involved in a side collision, resulting in high maintenance costs.
Multiple energy-absorbing devices, including energy-absorbing components and anti-collision plates, are installed between the outer and inner panels of the car door. The energy-absorbing components absorb energy and buffer during a collision, reducing the probability of damage to the inner panel and accessories of the car door.
By absorbing energy and cushioning, the probability of damage to the inner door panel and accessories is reduced, and only the outer door panel needs to be repaired or replaced, thus reducing the maintenance costs of the accident vehicle.
Smart Images
Figure CN224465632U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, and more particularly to a door assembly and a vehicle. Background Technology
[0002] In related technologies, a car door consists of an outer door panel, an inner door panel, and a door impact beam, which are connected together by welding. However, since the door impact beam is welded to the outer and inner door panels as a single unit, when the vehicle is impacted from the side, the deformation of the door impact beam can damage the inner door panel, interior trim panels, window regulators, speakers, locks, and other related door accessories, resulting in severe vehicle damage. Utility Model Content
[0003] In view of this, this application provides a door assembly in which an energy-absorbing component is used to absorb energy and buffer when the outer door panel is hit by a collision, thereby reducing the probability of damage to the anti-collision plate, the inner door panel and related door accessories. Only the outer door panel needs to be repaired or replaced, thus reducing the maintenance cost of the accident vehicle.
[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:
[0005] In a first aspect, embodiments of this application provide a vehicle door assembly, including: an outer door panel; an inner door panel located inside the outer door panel; and a plurality of energy-absorbing devices, the plurality of energy-absorbing devices being spaced apart between the outer door panel and the inner door panel, each energy-absorbing device including an energy-absorbing element and a crash barrier, the energy-absorbing element being connected to the inner door panel, and the crash barrier being located on the side of the energy-absorbing element closer to the outer door panel, wherein when the outer door panel is subjected to a collision, the energy-absorbing element is used for energy absorption and buffering.
[0006] The door assembly provided in this application embodiment has multiple energy-absorbing devices between the outer door panel and the inner door panel. Each energy-absorbing device includes an energy-absorbing component and a crash plate. When the outer door panel is hit by a collision, the energy-absorbing component is used to absorb energy and buffer, thereby reducing the probability of damage to the crash plate, the inner door panel and related door accessories. Only the outer door panel needs to be repaired or replaced, thus reducing the maintenance cost of the accident vehicle.
[0007] In one possible implementation of this application, the anti-collision plate is spaced apart from the outer panel of the vehicle door.
[0008] In one possible implementation of this application, a plurality of the energy-absorbing devices are arranged at intervals along a first direction and / or a second direction.
[0009] In one possible implementation of this application, the energy-absorbing device further includes a housing, the energy-absorbing element includes an elastomer, the elastomer is telescopically located within the housing, and one end of the housing is connected to the inner panel of the vehicle door.
[0010] In one possible implementation of this application, the energy-absorbing device further includes a support member connected between the elastomer and the anti-collision plate, with one end of the support member located inside the housing and the other end located outside the housing.
[0011] In one possible implementation of this application, the projection of the elastic body is located within the projection plane of the anti-collision plate, perpendicular to the projection plane of the elastic body.
[0012] In one possible implementation of this application, the anti-collision plate includes a plurality of plates arranged at an angle, with a rounded transition between two adjacent plates.
[0013] In one possible implementation of this application, the elastic body includes a spring.
[0014] In one possible implementation of this application, the energy-absorbing element includes a damper.
[0015] Secondly, embodiments of this application provide a vehicle, including a door assembly. The vehicle provided in this application, since it includes the door assembly provided in any of the above embodiments, has the same technical effect: the energy-absorbing component is used for energy absorption and buffering, thereby reducing the probability of damage to the crash barrier, inner door panel, and related door accessories. Only the outer door panel needs to be repaired or replaced, reducing the maintenance costs of the accident vehicle. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a door assembly according to some embodiments of this application.
[0017] Figure label:
[0018] 10. Door assembly;
[0019] 1. Outer door panel;
[0020] 2. Inner door panel;
[0021] 3. Energy absorption device; 31. Elastomer; 32. Shell; 33. Anti-collision plate; 331. Plate body; 34. Support component. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.
[0023] In the embodiments of this application, the terms "first" and "second" 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.
[0024] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.
[0025] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.
[0026] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. 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 apparatus that includes that element.
[0027] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0028] This application provides a vehicle embodiment. It should be noted that the vehicle in this application can refer to large vehicles, small vehicles, special-purpose vehicles, etc. For example, according to vehicle type, the vehicle in this application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other types of vehicles. For a vehicle, the door is basically composed of an outer door panel, an inner door panel, and a door anti-collision beam, which are connected together by welding. The main function of the door anti-collision beam is to buffer the impact when the vehicle is subjected to a side collision, protecting the passenger compartment space from being compressed as much as possible and protecting the occupants. However, since the door anti-collision beam is welded to the outer and inner door panels as a single unit, when the vehicle is subjected to a side impact, the deformation of the door anti-collision beam can cause damage to the inner door panel, interior trim panels, window regulators, speakers, locks, and other related door accessories, resulting in severe vehicle damage.
[0029] Based on this, refer to Figure 1 This application provides a door assembly 10, which includes an outer door panel 1, an inner door panel 2, and multiple energy-absorbing devices 3. The inner door panel 2 is located inside the outer door panel 1. "The inner door panel 2 is located inside the outer door panel 1" means that the inner door panel 2 is located on the side of the outer door panel 1 closest to the vehicle center, i.e., the side of the inner door panel 2 closest to the driver's cabin.
[0030] Multiple energy-absorbing devices 3 are spaced apart between the outer door panel 1 and the inner door panel 2, and all of the energy-absorbing devices 3 are connected to the inner door panel 2. The energy-absorbing devices 3 can either abut against the outer door panel 1 or be spaced apart. When the energy-absorbing devices 3 abut against the outer door panel 1, they can also be supported between the outer door panel 1 and the inner door panel 2, thereby increasing the connection strength between the outer door panel 1 and the inner door panel 2. When the outer door panel 1 is impacted, the energy-absorbing devices 3 not only absorb energy and cushion the impact, but also, with the support of the energy-absorbing devices 3 and the inner door panel 2, increase the strength of the outer door panel 1 against impact forces. When the outer door panel 1 is impacted, if the energy-absorbing devices 3 are spaced apart from the outer door panel 1, they can absorb some of the energy.
[0031] Each energy-absorbing device 3 includes an energy-absorbing component and a crash barrier 33. The energy-absorbing component is connected to the inner door panel 2, thereby connecting the energy-absorbing device 3 to the inner door panel 2 for installation and fixation. The crash barrier 33 is located on the side of the energy-absorbing component closer to the outer door panel 1, that is, the crash barrier 33 is located on the outside of the energy-absorbing component. When the outer door panel 1 is impacted, the outer door panel 1 impacts the crash barrier 33 first, which can provide a certain degree of support strength. The energy-absorbing component is used for energy absorption and buffering, to buffer the inner door panel 2 and its related door accessories. Under the synergistic effect of the crash barrier 33 and the energy-absorbing component, it can not only resist the impact force but also absorb energy and buffer, thereby reducing the probability of damage to the crash barrier 33, the inner door panel 2, and related door accessories. When repairing the vehicle, only the outer door panel 1 needs to be repaired or replaced, reducing the maintenance cost of the accident vehicle.
[0032] The door assembly 10 provided in this application embodiment has multiple energy-absorbing devices 3 between the outer door panel 1 and the inner door panel 2. Each energy-absorbing device 3 includes an energy-absorbing component and a crash plate 33. When the outer door panel 1 is hit by a collision, the energy-absorbing component is used to absorb energy and buffer, thereby reducing the probability of damage to the crash plate 33, the inner door panel 2 and related door accessories. Only the outer door panel 1 needs to be repaired or replaced, which reduces the maintenance cost of the accident vehicle.
[0033] Reference Figure 1 In one possible implementation of this application, the anti-collision plate 33 is spaced apart from the outer door panel 1, the energy-absorbing member is connected to the inner door panel 2, and the energy-absorbing device 3 can extend along the direction from the inner door panel 2 to the outer door panel 1. When the outer door panel 1 is impacted, the gap between the anti-collision plate 33 and the outer door panel 1 can absorb part of the energy, thereby reducing the impact force on the inner door panel 2 and the anti-collision plate 33.
[0034] Reference Figure 1 In one possible implementation of this application, multiple energy-absorbing devices 3 can be arranged along a first direction (see attached diagram). Figure 1 The multiple energy-absorbing devices 3 can be arranged at intervals in the X direction, or they can be arranged at intervals along the second direction, or they can be arranged at intervals along both the first and second directions.
[0035] When the door assembly 10 is in the closed state, the first direction is the vertical direction of the vehicle, and the second direction is the front-back direction of the vehicle. That is, the multiple energy-absorbing devices 3 can be arranged at intervals along the vertical direction of the vehicle, or at intervals along the front-back direction of the vehicle, or at intervals in both the vertical and front-back directions of the vehicle.
[0036] Multiple energy-absorbing devices 3 are arranged in rows and columns between the inner door panel 2 and the outer door panel 1. The energy-absorbing devices 3 are placed in multiple spaces between the outer door panel 1 and the inner door panel 2. When the outer door panel 1 is impacted, the energy-absorbing devices 3 can play an energy-absorbing and buffering role regardless of which area of the outer door panel 1 is impacted.
[0037] Reference Figure 1 In one possible implementation of this application, the energy-absorbing device 3 further includes a housing 32, and the energy-absorbing component includes an elastic body 31. The elastic body 31 is telescopically located inside the housing 32. One end of the housing 32 is connected to the inner panel 2 of the car door. The housing 32 can limit the installation of the elastic body 31 and guide the deformation direction of the elastic body 31.
[0038] The housing extends in the direction from the inner door panel 2 to the outer door panel 1, and the elastomer 31 also extends in the direction from the inner door panel 2 to the outer door panel 1.
[0039] After the outer door panel 1 is impacted, it impacts the anti-collision plate 33, which in turn impacts the elastomer 31. The elastomer 31 absorbs energy and deforms to absorb the impact force, which can reduce the probability of damage to the inner door panel 2 and related door accessories. When repairing the door assembly 10, after removing the outer door panel 1, the elastomer 31 can provide a force to the anti-collision plate 33 under the action of elasticity, causing the anti-collision plate 33 to rebound. For the entire door assembly 10, only the outer door panel 1 needs to be repaired or replaced, thereby reducing the maintenance cost of the accident vehicle.
[0040] For example, the elastic body 31 can be a spring or a sheet.
[0041] Reference Figure 1 In one possible implementation of this application, the energy absorption device 3 further includes a support member 34, which is connected between the elastic body 31 and the anti-collision plate 33. One end of the support member 34 is located inside the housing 32, and the other end is located outside the housing 32. The housing 32 can also accommodate and guide the support member 34.
[0042] The support member 34 is used to support the anti-collision plate 33. By setting the support member 34, the connection area between the support member 34 and the anti-collision plate 33 can be increased, the connection strength between the anti-collision plate 33 and the support plate can be improved, and the structural strength of the energy absorption device 3 can be improved.
[0043] For example, the support member 34 can be a square block structure.
[0044] Reference Figure 1In one possible implementation of this application, the projection of the elastic body 31 is located within the projection plane of the anti-collision plate 33, which is perpendicular to the projection plane of the elastic body 31. That is, the area of the anti-collision plate 33 is larger than the area of the elastic body 31, which can ensure the structural strength of the anti-collision plate 33.
[0045] Reference Figure 1 In one possible implementation of this application, the crash barrier 33 includes a plurality of plates 331 arranged at an angle. Using multiple plates 331 as the crash barrier 33 increases its structural strength. The rounded transition between adjacent plates 331 avoids stress concentration at the connection point.
[0046] Reference Figure 1 In one possible implementation of this application, the elastomer 31 includes a spring, which can reduce the cost of the elastomer 31 and make the installation of the elastomer 31 simple and convenient.
[0047] Reference Figure 1 In one possible implementation of this application, the energy-absorbing component includes a damper, which can be used to absorb energy. When the outer door panel 1 is impacted, the damper can absorb energy, and there are many types of dampers available. The type of damper can be selected based on the space between the outer door panel 1 and the inner door panel 2.
[0048] For example, dampers can be friction dampers, magnetohydrodynamic dampers, pneumatic dampers, particle dampers, etc.
[0049] The friction damper consists of a middle steel plate, two outer steel plates, and friction material between the steel plates. The relative sliding between the middle steel plate and the friction material generates friction. When the outer door panel 1 is impacted, the impact force is transmitted through the outer door panel 1 to the anti-collision plate 33, which in turn acts on the friction damper, causing relative displacement at both ends of the friction damper. During this displacement, friction is generated, converting mechanical energy into heat energy to absorb energy.
[0050] The magnetorheological fluid damper consists of a shell, a piston, an electromagnetic coil, and a magnetorheological fluid. The piston is movably disposed inside the shell, which is filled with magnetorheological fluid. The electromagnetic coil is wound around the piston. By passing current through the electromagnetic coil, the required magnetic field can be generated to change the viscosity of the magnetorheological fluid.
[0051] The input current can be adjusted according to the magnitude of the external force applied to the magnetorheological fluid damper, allowing for continuous adjustment of the damping force within a wide range to adapt to different working conditions and control requirements. When the outer door panel 1 is impacted, the magnetorheological fluid damper adjusts the damping force according to the magnitude of the impact force to absorb energy.
[0052] The pneumatic damper includes a cylinder, piston, throttle valve, and reset component. The cylinder is a closed cavity used to store gas. The reciprocating motion of the piston changes the volume of the gas cavity. By adjusting the size of the throttle orifice of the valve or the gas pressure, the damping force can be continuously finely adjusted. The reset component can reset the piston. When the outer door panel 1 is impacted, the impact force is transmitted through the outer door panel 1 to the anti-collision plate 33, which in turn acts on the pneumatic damper. The pneumatic damper utilizes the viscosity and compressibility of the gas to dissipate vibration energy and absorb energy for buffering.
[0053] Particle damping consists of a cavity and a particle group. The particle group can be customized in terms of material, particle size, shape, and filling ratio. Under vibration excitation, particle damping undergoes relative motion. Through inelastic collisions between particles, friction between particles and the cavity wall, and the extrusion deformation of the particle group, the vibrational energy of the structure is converted into heat or sound energy and dissipated, thereby achieving the function of energy absorption and buffering.
[0054] When the outer door panel 1 is impacted, the impact force is applied to the anti-collision plate 33 through the outer door panel 1, and the anti-collision plate 33 is applied to the particle damping. Energy is absorbed and buffered through the inelastic collision between particles.
[0055] Secondly, embodiments of this application provide a vehicle, including: a door assembly 10.
[0056] The vehicle provided in this application embodiment includes the door assembly 10 provided in any of the above-mentioned embodiments, and therefore has the same technical effect, that is, the energy-absorbing component is used for energy absorption and buffering, which reduces the probability of damage to the anti-collision plate 33, the inner door panel 2 and related door accessories. Only the outer door panel 1 needs to be repaired or replaced, thus reducing the maintenance cost of the accident vehicle.
[0057] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. A door assembly (10), characterized in that, include: Car door outer panel (1); The inner door panel (2) is located inside the outer door panel (1); Multiple energy-absorbing devices (3) are arranged at intervals between the outer door panel (1) and the inner door panel (2). Each energy-absorbing device (3) includes an energy-absorbing component and a crash plate (33). The energy-absorbing component is connected to the inner door panel (2), and the crash plate (33) is located on the side of the energy-absorbing component closer to the outer door panel (1). When the outer door panel (1) is hit, the energy-absorbing component is used to absorb energy and buffer.
2. The door assembly (10) according to claim 1, characterized in that, The anti-collision plate (33) is spaced apart from the outer door panel (1).
3. The door assembly (10) according to claim 1, characterized in that, Multiple energy-absorbing devices (3) are arranged at intervals along a first direction and / or a second direction.
4. The door assembly (10) according to claim 1, characterized in that, The energy-absorbing device (3) further includes a housing (32), and the energy-absorbing element includes an elastomer (31). The elastomer (31) is telescopically located inside the housing (32), and one end of the housing (32) is connected to the inner panel of the door (2).
5. The door assembly (10) according to claim 4, characterized in that, The energy absorption device (3) further includes a support member (34), which is connected between the elastomer (31) and the anti-collision plate (33). One end of the support member (34) is located inside the housing (32), and the other end is located outside the housing (32).
6. The door assembly (10) according to claim 4, characterized in that, In the projection plane perpendicular to the elastic body (31), the projection of the elastic body (31) is located in the projection plane of the anti-collision plate (33).
7. The door assembly (10) according to claim 6, characterized in that, The anti-collision plate (33) includes a plurality of plates (331) arranged at an angle, with a rounded transition between two adjacent plates (331).
8. The door assembly (10) according to claim 4, characterized in that, The elastic body (31) includes a spring.
9. The door assembly (10) according to claim 1, characterized in that, The energy-absorbing component includes a damper.
10. A vehicle, characterized in that, include: The door assembly (10) according to any one of claims 1-9.