Vehicle door assembly and vehicle

Abstract

The vehicle door assembly comprises a vehicle door, a buffering part, a first driving mechanism, a pull wire and a second driving mechanism, the buffering part is arranged on the vehicle door and used for rising in the vehicle door closing process or falling in the vehicle door opening process, and the first driving mechanism is arranged on the vehicle door and connected with the buffering part; the pull wire is connected with the first driving mechanism, and the second driving mechanism is connected with the vehicle door and the pull wire and used for driving the vehicle door to be opened or closed and driving the first driving mechanism to move through the pull wire. The buffer component can rise when the vehicle door is closed to avoid collision of the vehicle door in the closing process, and can fall when the vehicle door is opened to reduce the operating force value when the vehicle door is opened, so that the vehicle door is convenient to open. The driving mode that the second driving mechanism drives the first driving mechanism through the stay wire is simple in structure and small in occupied space, the second driving mechanism can still drive the first driving mechanism through the stay wire to achieve rising or falling of the buffer component in the power-off state, driving cost is not increased, and cost is saved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically to a door assembly and a vehicle. Background Technology

[0002] With the development of vehicles, more and more vehicles are adopting swing-opening door mechanisms. In vehicles using swing-opening doors, the door is typically hinged to the door frame via a drive linkage mechanism, forming a four-bar structure. This allows the door to rotate outwards along a fixed axis to open or close. However, during the opening and closing process, the door is prone to interference and collisions with other components. Related technologies can design the door assembly as a five-bar structure and couple an electric strut to adjust the door's movement trajectory, avoiding interference and collisions with other components during opening or closing. However, this solution requires a large operating force during opening, making the door difficult to open in a power outage scenario. Furthermore, in a power outage scenario, the movement trajectory of the five-bar structure is not unique, and the door is still prone to interference and collisions with other components. Utility Model Content

[0003] In view of this, this application provides a door assembly and a vehicle to avoid the risk of collision during the closing process of the door, while reducing the operating force value of the door when opening, so as to facilitate the opening of the door.

[0004] A first aspect of this application provides a vehicle door assembly, including a vehicle door, a buffer component, a first drive mechanism, a cable, and a second drive mechanism. The buffer component is disposed on the vehicle door and is used to rise during the closing process of the vehicle door or to descend during the opening process of the vehicle door. The first drive mechanism is disposed on the vehicle door and connected to the buffer component, and is used to drive the buffer component to rise or descend relative to the vehicle door. The cable is connected to the first drive mechanism. The second drive mechanism is connected to the vehicle door and the cable, and is used to drive the vehicle door to open or close, and to drive the first drive mechanism to move via the cable.

[0005] In this application, during the closing process of the door driven by the second drive mechanism, the second drive mechanism can drive the first drive mechanism to move via a cable, enabling the first drive mechanism to drive the buffer component to rise relative to the door. Specifically, the buffer component moves away from the door in a first direction relative to it, allowing it to rise beforehand and contact other components (such as other doors, buffer components, or body structure components) when the door is closed, thus preventing the door from colliding with other components during the closing process. Furthermore, the buffer component also improves the door's sealing effect when the door is closed.

[0006] During the process of the second drive mechanism driving the door to open, the second drive mechanism can also drive the first drive mechanism to move through the pull cable, so that the first drive mechanism can drive the buffer component to descend relative to the door, that is, drive the buffer component to move closer to the door in the first direction relative to the door, so that the buffer component can descend when the door is opened, thereby reducing the friction between the buffer component and other components when the door is opened, thereby reducing the operating force value when opening the door, so as to facilitate the opening of the door.

[0007] Furthermore, the second drive mechanism's drive method, which uses a cable to drive the first drive mechanism, is simple in structure and occupies little space, reducing the structural complexity of the door assembly and saving costs. It also eliminates the need for a separate electric drive device to drive the first drive mechanism; even in the event of power failure, the second drive mechanism can still drive the first drive mechanism via a cable to raise or lower the buffer component.

[0008] In one possible design, the first drive mechanism includes a first drive shaft, a first gear, and a rack; at least a portion of the pull wire is wound around and connected to the first drive shaft so that the second drive mechanism can drive the first drive shaft to rotate via the pull wire; the first gear is sleeved on the first drive shaft; the rack meshes with the first gear and is connected to the buffer component.

[0009] During the closing process of the car door driven by the second drive mechanism, the second drive mechanism can drive the first drive shaft to rotate via a pull cable, thereby driving the first gear to rotate, which in turn drives the rack to slide, thus causing the buffer component to rise relative to the car door. This structure is simple, reliable, and easy to implement, which can reduce the structural complexity of the car door assembly, save costs, and ensure the stability of the buffer component during the lifting process by the cooperation of the first gear and rack.

[0010] In one possible design, the first drive shaft is movable between a first position and a second position; when the first drive shaft is in the first position, the first gear meshes with the rack; when the first drive shaft is in the second position, the first gear disengages from the rack; and the second drive mechanism is capable of moving the first drive shaft from the second position to the first position via the pull cable.

[0011] During the closing process of the car door, the second drive mechanism tightens the cable, which moves the first drive shaft from the second position to the first position. The first gear meshes with the rack, and the second drive mechanism drives the first drive shaft to rotate via the cable, thereby rotating the first gear. This rotation of the first gear drives the rack to slide, thus raising the buffer component relative to the car door. During the opening process of the car door, the second drive mechanism releases the cable, returning the first drive shaft to the second position. The first gear disengages from the rack, disengaging them and allowing the rack to reset, thus lowering the buffer component relative to the car door. This structure is simple and facilitates the raising and lowering of the buffer component relative to the car door, further reducing the structural complexity of the door assembly. Furthermore, the rack reset process does not require the meshing of the first gear and rack, facilitating rapid rack reset and rapid lowering of the buffer component. This further reduces the friction between the buffer component and other components when opening the door, thus reducing the operating force required to open the door and facilitating rapid opening.

[0012] In one possible design, the first drive mechanism further includes a swing limiting block. Along the axial direction of the first drive shaft, the swing limiting block is disposed at one end of the first drive shaft. The swing limiting block is provided with a first sliding groove, and the first drive shaft is provided with a limiting protrusion. The limiting protrusion is slidably connected to the first sliding groove.

[0013] During the movement of the first drive shaft between the first and second positions, it can drive the limiting protrusion to slide along the first slide groove, thereby improving the stability of the first drive shaft's movement between the first and second positions and preventing the first drive shaft from deviating during movement. This, in turn, prevents the first drive shaft from driving the first gear to deviate during movement, thus ensuring the effective engagement of the first gear and rack. Furthermore, the first slide groove can restrict the displacement of the first drive shaft, allowing it to move between the first and second positions, thus improving the structural stability of the door assembly.

[0014] In one possible design, the first drive mechanism further includes a first elastic element disposed within the first slide groove; along the sliding direction of the limiting protrusion within the first slide groove, one end of the first elastic element is connected to the swing limiting block, and the other end is connected to the limiting protrusion.

[0015] During the closing process of the car door, the second drive mechanism tightens the cable, which moves the first drive shaft from the second position to the first position shown in the figure. This allows the first drive shaft to engage the first gear and rack, and simultaneously, the first drive shaft causes the limiting protrusion to slide downwards along the first slide groove. At this time, the first elastic element is stretched, producing elastic deformation. During the opening process of the car door, the second drive mechanism releases the cable, allowing the first elastic element to return to its original deformation. This automatically drives the limiting protrusion to slide upwards along the first slide groove, returning the first drive shaft to the second position shown in the figures, thus separating the first gear and rack. This structure is simple, easy to implement, and can further reduce the structural complexity of the car door assembly, saving costs.

[0016] In one possible design, the first drive mechanism further includes a swing rotation shaft, which is perpendicular to the first transmission shaft. The swing rotation shaft is located at the end of the first transmission shaft away from the swing limiting block. The first drive mechanism also includes a swing block, one end of which is rotatably connected to the swing rotation shaft, and the other end of which is connected to the first transmission shaft. The first transmission shaft can rotate between the first position and the second position via the swing block around the swing rotation shaft.

[0017] The first drive shaft rotates between a first position and a second position via a swing block around a swing axis, which can prevent the first drive shaft from displacing along its axial direction, thereby further improving the motion stability of the first drive shaft and ensuring the engagement effect of the first gear and rack.

[0018] In one possible design, the first drive shaft includes an axis, and the first drive shaft is rotatably connected to the swing block about the axis; the first drive mechanism further includes a second elastic element, one end of the second elastic element is connected to the swing block, and the other end of the second elastic element is connected to the first drive shaft; during the rotation of the first drive shaft about the axis, the second elastic element can generate elastic deformation.

[0019] During the closing process of the car door, the cable tightens, causing the first drive shaft to rotate from the second position to the first position via the swing block around the swing axis, as shown in the figure. At this time, the first gear meshes with the rack, and the first drive shaft can continue to rotate around its axis under the pull of the cable, so that the first gear can drive the rack to slide. At this time, the second elastic element undergoes elastic deformation. During the opening process of the car door, the cable loosens, and when the first drive shaft rotates from the first position to the second position via the swing block around the swing axis, the first gear separates from the rack. At this time, the second elastic element can restore its deformation, thereby driving the first drive shaft and the first gear to rotate around the axis to return to the initial position. At the same time, the loosened cable can be wound around the first drive shaft, improving the structural stability of the car door assembly.

[0020] In one possible design, the first drive mechanism further includes a slide block disposed on the vehicle door; the slide block is provided with a second slide groove, and the rack is slidably disposed within the second slide groove.

[0021] This structure allows the rack to slide along the second groove, preventing the rack from tilting or interfering with other components during sliding, thus improving the stability of the rack during sliding and ensuring the rack's effect in raising or lowering the buffer component.

[0022] In one possible design, the first drive mechanism further includes a third elastic element, the first elastic element being disposed within the second slide groove; along the sliding direction of the rack, one end of the third elastic element is connected to the slide block, and the other end is connected to the rack.

[0023] During the closing process of the car door, the first gear meshes with the rack. The first gear, during its rotation, drives the rack to slide, thus raising the buffer component relative to the door. At this time, the third elastic element can be stretched, producing elastic deformation. As shown in the figure, during the opening process of the car door, the first gear separates from the rack, and the third elastic element can recover its deformation, thereby causing the rack to automatically and quickly return to its original position. This allows the buffer component to descend quickly relative to the door, further reducing the friction between the buffer component and other components when opening the door, thus reducing the operating force required to open the door and facilitating rapid opening. This structure is simple, easy to implement, and can further reduce the structural complexity of the door assembly, saving costs.

[0024] In one possible design, the first drive mechanism further includes a rack and pinion stop, which is rotatably disposed on the door. The rack and pinion stop can rotate in a direction close to or away from the rack. When the first drive shaft is in the first position, the rack and pinion stop can rotate in a direction close to the rack and engage with the rack to limit the sliding of the rack. When the first drive shaft is in the second position, the rack and pinion stop can rotate in a direction away from the rack and disengage from the rack.

[0025] When the first drive shaft is in the first position as shown in Figures 1 and 2, the rack limiting member can rotate in the direction close to the rack and engage with the rack to limit the rack's sliding. This allows the rack to keep the buffer component in the raised state during the door closing process, preventing the rack from causing the buffer component to descend relative to the door, thus further improving the door's anti-collision effect. When the first drive shaft is in the second position as shown in Figures 1 and 2, the rack limiting member can rotate in the direction away from the rack and disengage from the rack, allowing the rack to slide back to its original position and cause the buffer component to descend relative to the door, facilitating the door's opening.

[0026] In one possible design, the rack is provided with toothed grooves, and the rack limiting member is engaged with the toothed grooves. This engagement between the rack limiting member and the toothed grooves results in a simple and reliable structure, further reducing the structural complexity of the door and saving costs.

[0027] In one possible design, at least a portion of the rack limiting member is disposed on the side of the first drive shaft away from the rack; during the process of the first drive shaft moving from the first position to the second position, the first drive shaft can drive the rack limiting member to rotate in a direction away from the rack.

[0028] When the first drive shaft is in the first position, the rack limiting member can rotate in the direction close to the rack under its own action, so that at least a part of the rack limiting member can engage with the rack. During the process of the first drive shaft moving from the first position shown in Figures 1 and 2 to the second position shown in Figures 3 and 4, the first gear can be separated from the rack, and the rack limiting member can also be driven to rotate in the direction away from the rack, thereby releasing the engagement between the rack limiting member and the rack. The structure is simple and easy to implement, and no additional drive structure is needed to drive the rack limiting member, further reducing the structural complexity of the door assembly and saving costs.

[0029] In one possible design, the door assembly further includes a tensioning wheel slidably disposed on the door, at least a portion of which abuts against the cable.

[0030] The tensioning wheel can tighten the cable and maintain its tension, thereby preventing creep and fatigue relaxation after prolonged stretching, improving the cable's service life, and enhancing the transmission of driving force between the second and first drive mechanisms, thus ensuring the lifting effect of the buffer component relative to the door.

[0031] In one possible design, the door assembly further includes a second drive shaft, which is driveably connected to the second drive mechanism so that the second drive mechanism can drive the second drive shaft to rotate. The second drive shaft includes a winding portion, one end of the pull cable is connected to the first drive mechanism, and at least a portion of the other end of the pull cable is wound around and connected to the winding shaft.

[0032] The second drive mechanism can drive the second transmission shaft to rotate, so that the winding shaft winds the cable or unwinds the cable from the winding shaft, thereby tightening or loosening the cable. This causes the cable to drive the first drive mechanism to move, thus enabling the first drive mechanism to raise or lower the buffer component relative to the door. This structure is simple, further reducing the structural complexity of the door assembly, and occupies little space, which is beneficial for the integrated design of the door assembly.

[0033] In one possible design, the second drive mechanism includes a drive member, a third drive shaft, and a first connecting rod. The first connecting rod includes a first connecting end and a second connecting end. The first connecting end is drively connected to the third drive shaft, and the second connecting end is rotatably connected to the door. The second connecting end is also drively connected to the second drive shaft. The drive member is connected to the third drive shaft and is used to drive the third drive shaft to rotate.

[0034] The drive component can drive the third drive shaft to rotate. The third drive shaft drives the first connecting rod to rotate via the first connecting end. During the rotation of the first connecting rod, it drives the door to close or open via the second connecting end. Simultaneously, it drives the second drive shaft to rotate via the second connecting end, thereby tightening or loosening the cable to drive the first drive mechanism to move, realizing the raising or lowering of the buffer component relative to the door. This structure is simple and easy to implement, and no additional electric drive device is required besides the drive component, which can reduce the structural complexity of the door assembly and save costs.

[0035] In one possible design, the second drive shaft further includes a second gear connected to the winding portion, and the second connecting end includes a first tooth that meshes with the second gear.

[0036] During rotation, the first toothed part meshes with the second gear, driving the second gear to rotate, which in turn drives the winding part to rotate. This allows at least a portion of the cable to be wound around or unwound from the winding part, thus tightening or loosening the cable. This, in turn, drives the first drive mechanism to move, enabling the buffer component to rise or fall relative to the door. This structure is simple, easy to implement, low in cost, and occupies little space, which is beneficial for the integrated design of door components.

[0037] In one possible design, the second connecting end further includes a smooth portion, and the first tooth portion is disposed adjacent to the smooth portion along the circumference of the second connecting end.

[0038] When the second connecting end rotates until the first tooth engages with the second gear of the second drive shaft, the second drive mechanism can drive the second drive shaft to rotate via the second connecting end, thereby tightening or loosening the cable, which in turn drives the first drive mechanism to move, thus raising or lowering the buffer component relative to the door. When the second connecting end rotates until the smooth part engages with the second gear of the second drive shaft, the first tooth disengages from the second gear, the second drive shaft stops rotating, the cable remains stationary, and the buffer component remains in its current state. That is, when the door is closed, the buffer component remains in the raised state; when the door is open, the buffer component remains in the lowered state. This structure ensures that the buffer component can rise or fall within a certain range and remains in its current state when the door is closed or open, improving the structural stability of the door assembly.

[0039] In one possible design, the door is provided with a receiving space and a mounting slot, at least a portion of the buffer component is disposed in the mounting slot, the first drive mechanism is disposed within the receiving space, and at least a portion of the first drive mechanism extends into the mounting slot and is connected to the buffer component.

[0040] The accommodating space can protect the first drive mechanism and improve the structural stability of the door assembly. The first drive mechanism extends at least partially into the mounting groove and is connected to the buffer component. It can drive the buffer component to slide within the mounting groove, thereby raising or lowering the buffer component relative to the door and improving the sliding stability of the buffer component.

[0041] In one possible design, the mounting groove includes a bottom and an opening; the size of the opening is smaller than the size of the bottom along the thickness direction of the door assembly.

[0042] This structure ensures that the mounting groove has sufficient sliding space while allowing the buffer component to seal against the opening when raised, further improving the sealing effect of the door assembly. Moreover, the structure is simple and reliable, and can further reduce the structural complexity of the door assembly, saving costs.

[0043] In one possible design, the door assembly further includes a sealing strip disposed at the opening for sealing contact with the buffer component, thereby further improving the sealing effect of the door assembly.

[0044] In one possible design, along the thickness direction of the door assembly, the door assembly includes multiple buffer components connected to the first drive mechanism to achieve a more reliable sealing effect for the door assembly.

[0045] A second embodiment of this application also provides a vehicle, which includes a body and a door assembly as described in any of the above embodiments. The door assembly is connected to the body via a second drive mechanism. Since the door assembly possesses the aforementioned technical effects, a vehicle including this door assembly should also possess corresponding technical effects, which will not be elaborated further here.

[0046] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0047] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This application provides a structural schematic diagram of a vehicle.

[0049] Figure 2 A schematic diagram of the structure of the door assembly provided in this application in a specific embodiment;

[0050] Figure 3 A schematic diagram of the door assembly provided in this application, with a portion of the door removed, in one specific embodiment;

[0051] Figure 4 A partial structural schematic diagram of the door assembly provided in this application in another specific embodiment;

[0052] Figure 5 for Figure 4 A cross-sectional view along the AA direction;

[0053] Figure 6 A partial structural schematic diagram of the door assembly provided in this application in another specific embodiment;

[0054] Figure 7 for Figure 6 A cross-sectional view along the BB direction;

[0055] Figure 8 A partial structural schematic diagram of the door assembly provided in this application in another specific embodiment;

[0056] Figure 9 A partial structural schematic diagram of the door assembly provided in this application in another specific embodiment;

[0057] Figure 10 for Figure 9A magnified view of a section at point I;

[0058] Figure 11 for Figure 9 Enlarged view of section II in the middle;

[0059] Figure 12 A cross-sectional view of the door assembly provided in this application in one specific embodiment;

[0060] Figure 13 A partial structural schematic diagram of the door assembly provided in this application in another specific embodiment;

[0061] Figure 14 A partial structural schematic diagram of the door assembly provided in this application in another specific embodiment;

[0062] Figure 15 A partial structural schematic diagram of the door assembly provided in this application in another specific embodiment;

[0063] Figure 16 This is a partial structural diagram of the door assembly provided in this application in another specific embodiment.

[0064] Figure label:

[0065] 100 - Vehicles;

[0066] 10-Door assembly;

[0067] 1-Car door;

[0068] 11-Accommodation space; 12-Mounting slot; 121-Bottom; 122-Opening;

[0069] 2-Buffer components;

[0070] 21-Connecting part; 22-First buffer component; 23-Second buffer component;

[0071] 3-First drive mechanism;

[0072] 31-First drive shaft; 311-Limiting protrusion; 32-First gear; 33-Rack; 331-Gear groove; 34-Rack limiting element; 35-Slide block; 351-Second slide groove; 36-Swing limiting block; 361-First slide groove; 37-Swing rotation shaft; 38-Swing block; 39a-First elastic element; 39b-Second elastic element; 39c-Third elastic element;

[0073] 4-Second drive mechanism;

[0074] 41-Drive component; 411-Worm gear; 42-Third drive shaft; 421-Third gear; 422-Turbine; 43-First connecting rod; 431-First connecting end; 431a-Second tooth; 432-Second connecting end; 432a-First tooth; 432b-Smooth part; 44-Second connecting rod;

[0075] 5- Pull the string;

[0076] 6-Tensioner;

[0077] 7-Second drive shaft;

[0078] 71-Winding part; 73-Second gear;

[0079] 8-Sealing strip;

[0080] 20 - Body;

[0081] X - First direction;

[0082] Y - Second direction;

[0083] Z - Thickness direction.

[0084] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0085] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0086] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0087] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0088] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0089] With the development of vehicles, more and more vehicles are adopting swing-opening door mechanisms. In vehicles using swing-opening doors, the door is typically hinged to the door frame via a drive linkage mechanism, forming a four-bar structure. This allows the door to rotate outwards along a fixed axis to open or close. However, during the opening and closing process, the door is prone to interference and collisions with other components. Related technologies can design the door assembly as a five-bar structure and couple an electric strut to adjust the door's movement trajectory, avoiding interference and collisions with other components during opening or closing. However, this solution requires a large operating force during opening, making the door difficult to open in a power outage scenario. Furthermore, in a power outage scenario, the movement trajectory of the five-bar structure is not unique, and the door is still prone to interference and collisions with other components.

[0090] In view of this, this application provides a door assembly that can be applied to various vehicles. For example, the door assembly 10 can be applied to vehicles with one-way swing doors or vehicles with swing doors without B-pillars, etc., to avoid the risk of collision during door closing and reduce the operating force required to open the door, thus facilitating door opening. This application does not impose any special limitations on the specific form of the vehicle described above; specific embodiments are described below.

[0091] Please refer to Figure 1 , Figure 1 This is a structural schematic diagram of a vehicle provided in this application.

[0092] like Figure 1 As shown, the vehicle 100 includes a body 20 and a door assembly 10. The door assembly 10 is connected to the door frame of the body 20 via a second drive mechanism, so that the door assembly 10 can be opened or closed under the drive of the first drive mechanism.

[0093] Please refer to Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of the door assembly provided in this application in a specific embodiment. Figure 3 This is a schematic diagram of the door assembly provided in this application, with a portion of the door removed, in one specific embodiment. The door assembly 10 includes a length direction, a width direction, and a thickness direction Z. For ease of understanding, the length direction of the door assembly 10 is defined as the first direction X, and the width direction of the door assembly 10 is defined as the second direction Y.

[0094] like Figure 2 and Figure 3 As shown, the door assembly 10 includes a door 1, a buffer component 2, a first drive mechanism 3, a cable 5, and a second drive mechanism 4.

[0095] The buffer component 2 is disposed on the door 1 and is used to rise during the closing process of the door 1 or to lower during the opening process of the door 1. A first drive mechanism 3 is disposed on the door and connected to the buffer component 2, used to drive the buffer component 2 to rise or fall relative to the door 1. A cable 5 is connected to the first drive mechanism and a second drive mechanism 4, the second drive mechanism 4 being able to drive the first drive mechanism 3 to move via the cable 5. The second drive mechanism 4 is also connected to the door 1 and is used to drive the opening or closing of the door 1.

[0096] In this embodiment, as Figure 2 and Figure 3 As shown, during the closing process of the second drive mechanism 4 driving the door 1, the second drive mechanism 4 can drive the first drive mechanism 3 to move via the pull cable 5, so that the first drive mechanism 3 can drive the buffer component 2 to rise relative to the door 1, that is, drive the buffer component 2 to move away from the door 1 along the first direction X relative to the door 1, so that the buffer component 2 can rise and pre-contact other components (such as other doors, buffer components, or body structure components) when the door 1 is closed, avoiding collisions between the door 1 and other components during the closing process. Furthermore, in the closed state of the door 1, the buffer component 2 can also improve the sealing effect of the door 1.

[0097] During the process of the second drive mechanism 4 driving the door 1 to open, the second drive mechanism 4 can also drive the first drive mechanism 3 to move through the pull cable, so that the first drive mechanism 3 can drive the buffer component 2 to descend relative to the door 1, that is, drive the buffer component 2 to move closer to the door 1 along the first direction X relative to the door 1, so that the buffer component 2 can descend when the door 1 is opened, thereby reducing the friction between the buffer component 2 and other components when the door 1 is opened, thereby reducing the operating force value when opening the door 1, so as to facilitate the opening of the door 1.

[0098] Furthermore, the drive mechanism 4 drives the first drive mechanism 3 via the cable 5, which has a simple structure and occupies little space, reducing the structural complexity of the door assembly 10 and saving costs. Moreover, there is no need for a separate electric drive device to drive the first drive mechanism 3; even in the event of power failure, the second drive mechanism 4 can still drive the first drive mechanism 3 via the cable 5 to raise or lower the buffer component 2.

[0099] Among them, the pull line 5 can be a rope-like structure made of materials such as metal or plastic. The specific configuration can be set according to actual needs and is not limited here.

[0100] In one specific embodiment, such as Figure 3 As shown, the door assembly 10 also includes a tension wheel 6, which is slidably disposed on the door, and at least a portion of the tension wheel 6 abuts against the cable 5.

[0101] After prolonged use, the pull cable 5 is prone to permanent deformation, leading to creep and fatigue relaxation, which affects the driving effect of the second drive mechanism 4 on the first drive mechanism 3, and consequently affects the lifting effect of the buffer component 2 relative to the door 1.

[0102] In this embodiment, as Figure 3 As shown, the tensioning wheel 6 can tighten the cable 5 and keep the cable 5 in a taut state, thereby preventing the cable 5 from creeping and fatigued loosening after being stretched for a long time, improving the service life of the cable 5, as well as the transmission effect of the driving force between the second drive mechanism 4 and the first drive mechanism 3, thereby ensuring the lifting effect of the buffer component 2 relative to the door 1.

[0103] Specifically, the tensioning wheel 6 can slide along the first direction X and / or the second direction Y of the vehicle assembly 10. Of course, the tensioning wheel 6 can also slide along other directions, as long as it can tighten the cable 5. The specific settings can be made according to actual needs, and no restrictions are imposed here.

[0104] The door 1 can be symmetrically equipped with two first drive mechanisms 3, a second drive mechanism 4, a pull cable 5 and a tensioning wheel 6 along the second direction Y to improve the stability of the door 1 during opening and closing, and to prevent the buffer component 2 from tilting or jamming during opening and closing, thereby improving the overall lifting effect of the buffer component 2 and further reducing the risk of collision of the door 1.

[0105] Please refer to Figure 4 and Figure 5 , Figure 4 A partial structural schematic diagram of the door assembly provided in this application in another specific embodiment, wherein the first drive shaft is located in a first position; Figure 5 for Figure 4 A cross-sectional view along the AA direction.

[0106] like Figure 4 As shown, the first drive mechanism 3 includes a first drive shaft 31, a first gear 32, and a rack 33. At least a portion of the pull cable 5 is wound around and connected to the first drive shaft 31, enabling the second drive mechanism 4 to drive the first drive shaft 31 to rotate via the pull cable 5. The first gear 32 is sleeved on the first drive shaft 31, allowing the first drive shaft 31 to drive the first gear 32 to rotate. The first gear 32 meshes with the rack 33, and the rack 33 is connected to the buffer member 2, so that when the first gear 32 rotates, it can drive the rack 33 to lift the buffer member 2 relative to the door 1.

[0107] In this embodiment, as Figure 4 and Figure 5 As shown, during the closing process of the door 1 driven by the second drive mechanism 4, the second drive mechanism 4 can drive the first transmission shaft 31 to rotate via the pull cable 5, thereby driving the first gear 32 to rotate, which in turn drives the rack 33 to slide, thereby causing the buffer component 2 to rise relative to the door 1. This structure is simple, reliable, and easy to implement, which can reduce the structural complexity of the door assembly 10, save costs, and ensure the stability of the buffer component 2 during the lifting process by the cooperation of the first gear 32 and the rack 33.

[0108] The first drive shaft 31 and the first gear 32 can be integrally formed to reduce the manufacturing process, improve manufacturing efficiency, and save costs. Of course, the first drive shaft 31 and the first gear 32 can also be manufactured separately, and then the first gear 32 can be sleeved and fixed on the first drive shaft 31 by welding or other methods. The specific configuration can be set according to actual needs and is not limited here.

[0109] Please refer to Figure 6 and Figure 7 , Figure 6 A partial structural schematic diagram of the door assembly provided in this application in another specific embodiment, wherein the first drive shaft is located in the second position; Figure 7 for Figure 6 A cross-sectional view along the BB direction.

[0110] Furthermore, the first drive shaft 31 is capable of... Figure 4 and Figure 5 The first position shown and as Figure 6 and Figure 7 The first drive shaft 31 moves between the second and third positions as shown. When the first drive shaft 31 is in the first position, the first gear 32 meshes with the rack 33. When the first drive shaft 31 is in the second position, the first gear 32 disengages from the rack 33. The second drive mechanism 4 drives the first drive shaft 31 from the second position to the first position through the pull cable 5.

[0111] In this embodiment, during the closing process of the car door 1, the second drive mechanism 4 can tighten the pull cable 5, thereby driving the first drive shaft 31 to move from the second position to the position shown by the pull cable 5. Figure 4 and Figure 5 In the first position shown, the first gear 32 meshes with the rack 33, and the second drive mechanism 4 can drive the first transmission shaft 31 to rotate via the cable 5, thereby driving the first gear 32 to rotate. This allows the first gear 32 to drive the rack 33 to slide during rotation, thus raising the buffer component 2 relative to the door 1. During the opening of the door 1, the second drive mechanism 4 can release the cable 5, allowing the first transmission shaft 31 to return to its original position. Figure 6 and Figure 7 In the second position shown, the first gear 32 separates from the rack 33, thereby disengaging the first gear 32 from the rack 33 and allowing the rack 33 to reset, thus driving the buffer component 2 to descend relative to the door 1. This structure is simple and facilitates the raising or lowering of the buffer component 2 relative to the door 1, further reducing the structural complexity of the door assembly 10. Furthermore, the rack 33 does not require meshing between the first gear 32 and the rack 33 during reset, which facilitates rapid reset of the rack 33 and rapid descent of the buffer component 2. This further reduces the friction between the buffer component 2 and other components when opening the door 1, thereby reducing the operating force required to open the door 1 and facilitating rapid opening of the door 1.

[0112] In one specific embodiment, such as Figure 7 As shown, the first drive mechanism 3 also includes a slide block 35, which is disposed on the door 1. The slide block 35 is provided with a second slide groove 351, and the rack 33 is slidably disposed in the second slide groove 351 so that the rack 33 can slide along the second slide groove 351, avoiding the rack 33 from tilting or interfering with other components during the sliding process, improving the stability of the rack 33 during the sliding process, and ensuring the effect of the rack 33 driving the buffer component 2 to rise or fall.

[0113] In one specific embodiment, such as Figure 7 As shown, the first drive mechanism 3 also includes a third elastic element 39c, which is disposed within the second slide groove 351. Along the sliding direction of the rack 33, one end of the third elastic element 39c is connected to the slide block 35, and the other end is connected to the rack 33. The sliding direction of the rack 33 is the first direction X.

[0114] In this embodiment, as Figure 5 As shown, during the closing process of the car door 1, the first gear 32 meshes with the rack 33. The first gear 32 can drive the rack 33 to slide during rotation, thereby realizing the lifting of the buffer component 2 relative to the car door 1. At this time, the third elastic element 39c can be stretched, producing elastic deformation. Figure 7 As shown, during the opening of the car door 1, the first gear 32 separates from the rack 33, and the third elastic element 39c can recover its deformation, thereby driving the rack 33 to automatically and quickly return to its original position. This enables the buffer component 2 to descend rapidly relative to the car door 1, further reducing the friction between the buffer component 2 and other components when opening the car door 1, thus reducing the operating force required to open the car door 1 and facilitating its rapid opening. This structure is simple, easy to implement, and can further reduce the structural complexity of the door assembly 10, saving costs.

[0115] The third elastic element 39c can be an elastic structure such as a spring, leaf spring, tension spring, elastic rope, or elastic rubber to enhance the design freedom of the door assembly 10. It can be set according to actual needs and is not restricted here.

[0116] In one specific embodiment, such as Figure 7 As shown, the first drive mechanism 3 also includes a rack and pinion limiter 34, which is rotatably mounted on the door 1 and can rotate in the direction of approaching or moving away from the rack 33.

[0117] Among them, the first drive shaft 31 is located as follows Figure 4 and Figure 5 In the first position shown, the rack limiter 34 can rotate in the direction close to the rack 33 and engage with the rack 33 to limit the sliding of the rack 33, so that the rack 33 can drive the buffer component 2 to remain in the raised state during the closing of the door 1, preventing the rack 33 from driving the buffer component 2 to fall relative to the door 1, and further improving the anti-collision effect of the door 1.

[0118] The first drive shaft 31 is located as follows: Figure 6 and Figure 7 In the second position shown, the rack limiter 34 can rotate in a direction away from the rack 33, disengaging from the rack 33 so that the rack 33 can slide back to its original position, thereby causing the buffer component 2 to descend relative to the door 1 so that the door 1 can be opened.

[0119] Furthermore, such as Figure 5 and Figure 7 As shown, the rack 33 is provided with a toothed groove 331, and the rack limiting member 34 is engaged with the toothed groove 331. The structure is simple and reliable, which can further reduce the structural complexity of the door 10 and save costs.

[0120] Among them, such as Figure 5 As shown, along the sliding direction of the rack 33, i.e. the first direction X, the first surface of the tooth groove 331 on the side near the buffer member 2 is perpendicular to the bottom surface of the tooth groove 331. This allows the first surface to be in contact with the rack limiter 34 when the rack limiter 34 engages with the tooth groove 331, thereby limiting the rack 33 from driving the buffer member 22 to descend relative to the door 1.

[0121] like Figure 5 As shown, along the sliding direction of the rack 33, i.e. the first direction X, the second surface of the tooth groove 331 on the side away from the buffer member 2 is inclined to the bottom surface of the tooth groove 331. This allows the second surface to slide with the rack limiter 34 when the rack limiter 34 engages with the tooth groove 331, so that the rack 33 can continue to slide under the drive of the first gear 32, causing the buffer member 2 to rise relative to the door 1.

[0122] In one specific embodiment, such as Figure 6 and Figure 7 As shown, at least a portion of the rack limiting member 34 is disposed on the side of the first drive shaft 31 away from the rack 33. The first drive shaft 31 is located from... Figure 4 and Figure 5 The first position shown is moved to, as Figure 6 and Figure 7 During the process of the second position shown, the first drive shaft 31 can drive the rack limiter 34 to rotate in a direction away from the rack.

[0123] In this embodiment, as Figure 4 and Figure 5 As shown, when the first drive shaft 31 is in the first position, the rack limiting member 34 can rotate in a direction close to the rack 33 under its own action, so that at least a portion of the rack limiting member 34 can engage with the rack 33. The first drive shaft 31 moves from... Figure 4 and Figure 5 The first position shown is moved to, as Figure 6 and Figure 7 During the second position shown, the first gear 32 can be separated from the rack 33, while simultaneously driving the rack limiting member 34 to rotate away from the rack 33, thereby releasing the engagement between the rack limiting member 34 and the rack 33. The structure is simple and easy to implement, and no additional drive structure is needed to drive the rack limiting member 34, further reducing the structural complexity of the door assembly 10 and saving costs.

[0124] Among them, such as Figure 6 As shown, the end of the rack limiting member 34 furthest from the buffer member 2 can be rotatably connected to the door 1 via a pivot shaft to improve the arrangement freedom of the rack limiting member 4. In some other embodiments, the end of the rack limiting member 34 furthest from the buffer member 2 can also be rotatably connected to the slide block 35 to improve the structural stability of the first drive mechanism 3. The specific configuration can be set according to actual needs and is not limited here.

[0125] In one specific embodiment, such as Figure 4 and Figure 6 As shown, the first drive mechanism 3 also includes a swing limiting block 36, which is disposed at one end of the first drive shaft 31 along the axial direction of the first drive shaft 31. The swing limiting block 36 is provided with a first sliding groove 361, and the first drive shaft 31 is provided with a limiting protrusion 311, which is slidably connected to the first sliding groove 361.

[0126] In this embodiment, as Figure 4 and Figure 6As shown, during the movement of the first drive shaft 31 between the first and second positions, it can drive the limiting protrusion 311 to slide along the first slide groove 361, thereby improving the stability of the movement of the first drive shaft 31 between the first and second positions and preventing the first drive shaft 31 from deviating during the movement. This, in turn, prevents the first drive shaft 31 from driving the first gear 32 to deviate during the movement, thus ensuring the effective engagement between the first gear 32 and the rack 33. In addition, the first slide groove 361 can restrict the displacement of the first drive shaft 31, allowing the first drive shaft 31 to move between the first and second positions, thereby improving the structural stability of the door assembly 10.

[0127] The swing limit block 36 can be fixed to the door 1 by welding to improve the structural stability of the door assembly 10. The specific configuration can be set according to actual needs and is not limited here.

[0128] Furthermore, such as Figure 4 and Figure 6 As shown, the first drive mechanism 3 also includes a first elastic element 39a, which is disposed in the first slide groove 361. Along the sliding direction of the limiting protrusion 311 in the first slide groove 361, one end of the first elastic element 39a is connected to the swing limiting block 36, and the other end is connected to the limiting protrusion 311.

[0129] In this embodiment, during the closing process of the car door 1, the second drive mechanism 4 can tighten the pull cable 5, thereby driving the first drive shaft 31 to move from the second position to the position shown by the pull cable 5. Figure 4 The first position shown allows the first drive shaft 31 to drive the first gear 32 to mesh with the rack 33. Simultaneously, the first drive shaft 31 drives the limiting protrusion 311 to slide downwards along the first slide groove 361. At this time, the first elastic element 39a can be stretched, generating elastic deformation. During the opening of the car door 1, the second drive mechanism 4 can release the pull cable 5. At this time, the first elastic element 39a can recover its deformation, thereby automatically driving the limiting protrusion 311 to slide upwards along the first slide groove 361, causing the first drive shaft 31 to return to the position shown. Figure 6 and Figure 7 The second position shown allows the first drive shaft 31 to drive the first gear 32 to separate from the rack 33. This structure is simple and easy to implement, and can further reduce the structural complexity of the door assembly 10, saving costs.

[0130] The first elastic element 39a can be an elastic structure such as a spring, leaf spring, tension spring, elastic rope, or elastic rubber to improve the design freedom of the door assembly 10. The specific design can be set according to actual needs and is not restricted here.

[0131] Please refer to Figure 8 , Figure 8This is a partial structural diagram of the door assembly provided in this application in another specific embodiment.

[0132] like Figure 8 As shown, in one specific embodiment, the first driving mechanism 3 further includes a swing rotation shaft 37, which is perpendicularly arranged to the first transmission shaft 31 and located at the end of the first transmission shaft 31 away from the swing limiting block 36. The first driving mechanism 3 also includes a swing block 38, one end of which is rotatably connected to the swing rotation shaft 37, and the other end of which is connected to the first transmission shaft 31. The first transmission shaft 31 can rotate around the swing rotation shaft 37 between a first position and a second position via the swing block 38.

[0133] In this embodiment, as Figure 8 As shown, the first drive shaft 31 rotates between the first position and the second position via the swing block 38 around the swing rotation axis 37, which can prevent the first drive shaft 31 from displacing along its axial direction, thereby further improving the motion stability of the first drive shaft 31 and ensuring the cooperation effect between the first gear 32 and the rack 33.

[0134] The swing rotation shaft 37 is perpendicular to the first transmission shaft 31, meaning the axial direction of the swing rotation shaft 37 is perpendicular to the axial direction of the first transmission shaft 31. Specifically, the axial direction of the swing rotation shaft 37 can be parallel to the first direction X, and the axial direction of the first transmission shaft 31 can be parallel to the thickness direction Z. Furthermore, the swing rotation shaft 37 can be fixed to the door 1 by welding or other methods; the specific configuration can be determined according to actual needs and is not limited here.

[0135] Furthermore, such as Figure 8 As shown, the first drive shaft 31 includes an axis O1, and the first drive shaft 31 is rotatably connected to the swing block 38 around the axis O1. The first drive mechanism 3 also includes a second elastic element 39b, one end of which is connected to the swing block 38, and the other end of which is connected to the first drive shaft 31. During the rotation of the first drive shaft 31 around the axis O1, the second elastic element 39b can generate elastic deformation.

[0136] In this embodiment, as Figure 8 As shown, during the closing process of the car door 1, the pull cable 5 tightens, driving the first drive shaft 31 to rotate around the swing axis 37 via the swing block 38. Figure 6 The second position shown is rotated to the position as follows: Figure 4In the first position shown, the first gear 32 meshes with the rack 33, and the first drive shaft 31 can continue to rotate around its axis O1 under the pull of the cable 5, so that the first gear 32 can drive the rack 33 to slide. At this time, the second elastic element 39b produces elastic deformation. During the opening of the car door 1, the cable 5 is released, and the first drive shaft 31 rotates around the swing axis 37 via the swing block 38. Figure 4 Rotate to the first position shown as follows Figure 6 In the second position shown, the first gear 32 separates from the rack 33. At this time, the second elastic element 39b can recover its deformation, thereby driving the first drive shaft 31 and the first gear 32 to rotate around the axis O1 to return to the initial position. At the same time, the released pull wire can be wound around the first drive shaft 31 to improve the structural stability of the door assembly 10.

[0137] The second elastic element 39b can be an elastic structure such as a torsion spring or elastic rubber to improve the design freedom of the door assembly 10. The specific design can be set according to actual needs and is not restricted here.

[0138] Please refer to Figure 9 and Figure 10 , Figure 9 This is a partial structural diagram of the door assembly provided in this application in another specific embodiment. Figure 10 for Figure 9 A magnified view of a section at point I.

[0139] like Figure 9 As shown, the door assembly 10 also includes a second drive shaft 7, which is connected to the second drive mechanism 4 so that the second drive mechanism 4 can drive the second drive shaft 7 to rotate. Please also refer to... Figure 10 As shown, the second drive shaft 7 includes a winding portion 71, one end of the pull wire 5 is connected to the first drive mechanism 3, and at least a portion of the other end of the pull wire 5 is wound and connected to the winding shaft 71.

[0140] In this example, such as Figure 9 and Figure 10 As shown, the second drive mechanism 4 can drive the second transmission shaft 7 to rotate, so that the winding shaft 71 winds the pull cable 5, or unwinds the pull cable 5 from the winding shaft 71, thereby tightening or loosening the pull cable 5, causing the pull cable 5 to drive the first drive mechanism 3 to move, so as to realize the first drive mechanism 3 driving the buffer component 2 to rise or fall relative to the door 1. This structure is simple, which can further reduce the structural complexity of the door assembly 10, and it occupies little space, which is conducive to the integrated design of the door assembly 10.

[0141] The second drive shaft 7 is rotatably connected to the door 1. The specific configuration can be set according to actual needs and is not limited here.

[0142] like Figure 9 As shown, in one specific embodiment, the second drive mechanism 4 includes a drive member 41, a third transmission shaft 42, and a first connecting rod 43. The first connecting rod 43 includes a first connecting end 431 and a second connecting end 432. The first connecting end 431 is driveably connected to the third transmission shaft 42, and the second connecting end 432 is rotatably connected to the door 1. The second connecting end 432 is also drively connected to the second transmission shaft 7. The drive member 41 is connected to the third transmission shaft 42 and is used to drive the third transmission shaft 42 to rotate.

[0143] In this embodiment, as Figure 9 As shown, the drive component 41 can drive the third drive shaft 42 to rotate. The third drive shaft 42 drives the first connecting rod 43 to rotate through the first connecting end 431. During the rotation, the first connecting rod 43 drives the door 1 to close or open through the second connecting end 432, and simultaneously drives the second drive shaft 7 to rotate through the second connecting end 432. This allows the second drive shaft 7 to tighten or loosen the pull cable 5, thereby driving the first drive mechanism 3 to move and realize the raising or lowering of the buffer component 2 relative to the door 1. This structure is simple and easy to implement, and no additional electric drive device is required except for the drive component 41, which can reduce the structural complexity of the door assembly 10 and save costs.

[0144] Among them, such as Figure 9 As shown, the second drive mechanism 4 also includes a second link 44. The end of the second link 44 away from the door 1 and the first connecting end 431 of the first link 43 are rotatably connected to the door frame of the vehicle body. The end of the second link 44 near the door 1 and the second connecting end 432 of the first link 43 are rotatably connected to the door 1, thus forming a four-bar structure. This structure is simple and can further reduce the structural complexity of the door assembly 10, save costs, and the four-bar structure has a unique motion trajectory. In the power failure state, the second drive mechanism 4 can still drive the first drive mechanism 3 through the pull cable 5 to realize the raising or lowering of the buffer component 2. Moreover, the operating force value for manually opening or closing the door 1 is small, which makes it easy for the door 1 to be manually opened or closed in the power failure state.

[0145] In addition, neither end of the second link 44 needs to be equipped with gears; it can simply be rotatably connected to the vehicle body and door 1.

[0146] like Figure 10 As shown, the second drive shaft 7 further includes a second gear 72, which is connected to the winding portion 71. The second connecting end 432 includes a tooth 432a, which meshes with the second gear 72.

[0147] In this embodiment, as Figure 10As shown, during the rotation of the second connecting end 432, the first tooth 432a meshes with the second gear 72 to drive the second gear 72 to rotate, thereby driving the winding part 71 to rotate. This allows at least a portion of the pull cable 5 to be wound around or unwound from the winding part 71, thus tightening or loosening the pull cable 5 to drive the first drive mechanism 3 to move, realizing the raising or lowering of the buffer component 2 relative to the door 1. This structure is simple, easy to implement, low in cost, and occupies little space, which is beneficial for the integrated design of the door assembly 10.

[0148] The second gear 72 and the winding part 71 can be integrally formed to further reduce manufacturing steps, improve manufacturing efficiency, and save manufacturing costs. Furthermore, the second gear 72 and the winding part 71 can be coaxially connected; the specific configuration can be determined according to actual needs and is not limited here.

[0149] like Figure 10 As shown, the second connecting end 432 further includes a smooth portion 432b, and the first tooth portion 432a and the smooth portion 432b are disposed adjacent to each other along the circumference of the second connecting end 432.

[0150] In this embodiment, as Figure 10 As shown, when the second connecting end 432 rotates to the point where the first tooth 432a meshes with the second gear 72 of the second drive shaft 7, the second drive mechanism 4 can drive the second drive shaft 7 to rotate through the second connecting end 432, thereby causing the pull cable 5 to tighten or loosen, so as to drive the first drive mechanism 3 to move, thereby realizing the raising or lowering of the buffer component 2 relative to the door 1.

[0151] When the second connecting end 432 rotates to the point where the smooth part 432b engages with the second gear 72 of the second drive shaft 7, the first tooth 432a disengages from the second gear 72 of the second drive shaft 7. At this time, the second drive shaft 7 stops rotating, the pull cable 5 remains stationary, and the buffer component 2 can remain in its current state. That is, when the door 1 is closed, the buffer component 2 can remain in the raised state, and when the door 1 is open, the buffer component 2 can remain in the lowered state.

[0152] This structure ensures that the buffer component 2 can rise or fall within a certain range, and can keep the buffer component 2 in its current state when the door 1 is closed or open, thereby improving the structural stability of the door assembly 10.

[0153] Among them, such as Figure 10As shown, by controlling the proportions of the first tooth 432a and the smoothing part 432b on the periphery of the second connecting end 432, the opening and closing critical angles of the car door 1 can be adjusted. The specific angles can be set according to actual needs and are not limited here. The opening critical angle of the car door 1 is the angle between the car door 1 and the car door in a fully closed state when the first tooth 432a meshes with the second gear 72 during the opening process. Specifically, the opening critical angle of the car door 1 can be less than or equal to 0.5°, for example, 0.1°, 0.2°, 0.3°, 0.4°, or 0.5°, to reduce the friction between the buffer component 2 and other components when the car door 1 is opened, reduce the operating force, and facilitate the opening of the car door 1. Of course, the opening critical angle of the car door 1 can also be other values ​​within the above range, and can be set according to actual needs and are not limited here. The critical closing angle of door 1 is the angle between door 1 and the door in its fully closed state when the first tooth 432a meshes with the second gear 42 during the closing process. Specifically, the critical closing angle of door 1 can be less than or equal to 1°, for example, it can be 0.1°, 0.2°, 0.3°, 0.4°, 0.5°, 0.6°, 0.7°, 0.8°, 0.9°, or 1°, to ensure that the buffer component 2 can rise in time during the closing process of door 1, avoiding collisions between door 1 and other components. Of course, the critical closing angle of door 1 can also be other values ​​within the above range, and can be set according to actual needs, without limitation here.

[0154] Please refer to Figure 11 , Figure 11 for Figure 9 A magnified view of section II in the middle. (See image below.) Figure 11 As shown, the first connecting end 431 of the first connecting rod 43 is provided with a second tooth 431a, and the third transmission shaft 43 includes a third gear 421. The third gear 421 is meshed with the second tooth 431a. During the process of the driving member 41 driving the third transmission shaft 42 to rotate, the third gear 431 can drive the first connecting end 431 to rotate, thereby driving the first connecting rod 43 to rotate.

[0155] Furthermore, such as Figure 11 As shown, the third drive shaft 43 also includes a turbine 422. The drive member 41 is provided with a worm gear 411, which meshes with the turbine 422. The turbine 422 is coaxially connected with the third gear 421. The drive member 41 can drive the worm gear 411 to rotate, thereby the worm gear 411 can drive the turbine 422 to rotate. The turbine 422 drives the third gear 421 to rotate, thereby the third gear 431 can drive the first connecting end 431 to rotate, thereby driving the first connecting rod 43 to rotate.

[0156] The worm gear 422 and the third gear 421 are fixed by means of coaxial welding, etc. The worm gear 422 and the third gear 421 can also be formed as one piece. The specific configuration can be set according to actual needs, and there are no restrictions here.

[0157] In the above embodiments, the drive unit 1 can rotate forward or backward.

[0158] For example, during the process of closing car door 1, such as Figures 9-11 As shown, the drive unit 41 rotates clockwise, driving the third gear 421 to rotate via the worm gear 411 and the worm wheel 422. The third gear 421 meshes with the second tooth 431a, thereby driving the first connecting end 431 to rotate, which in turn drives the first connecting rod 43 to rotate, thus driving the door 1 to close. When the door 1 reaches the closing critical angle, the first tooth 432a of the second connecting end 432 meshes with the second gear 72 of the second drive shaft 7, thereby driving the second gear 72 to rotate, and simultaneously driving the winding part 71 to rotate to wind at least part of the pull cable 5, tightening the pull cable 5. After being further tightened by the tensioning wheel 6, the pull cable 5 pulls the first drive shaft 31, causing the first drive shaft 31 and the swing block 38 to rotate around the swing rotation axis 37 to the position shown. Figure 4 and Figure 5 The first position is shown, and the first gear 32 is limited by the limiting protrusion 311 and the swing limiting block 36, so that the first elastic element 39a is engaged with the rack 33. At this time, the first elastic element 39a undergoes elastic deformation between the limiting protrusion 311 and the swing limiting block 36. At the same time, the rack limiting element 34 can rotate and fall under its own action. As the door 1 continues to close, the cable 5 can drive the first drive shaft 31 and the first gear 32 fixed on the first drive shaft 31 to continue to rotate along the axis of the first drive shaft 31, so that the first gear 32 drives the rack 33 to slide outward along the slide block 35, thereby driving the buffer component 2 to rise relative to the door 1. At this time, the second elastic element 39b undergoes elastic deformation due to the rotation of the first drive shaft 31 and the swing block 38, and the third elastic element 39c undergoes elastic deformation due to the tension between the slide block 35 and the rack 33. When the door 1 is fully closed, the rack limiting element 34 engages with the tooth groove 331 of the rack 33, so that the buffer component 2 is kept in the raised state.

[0159] For example, during the process of opening car door 1, such as Figures 9-11As shown, the drive member 41 reverses, driving the third gear 421 to rotate via the worm gear 411 and the worm 422. The third gear 421 meshes with the second tooth 431a, thereby driving the first connecting end 431 to rotate, which in turn drives the first connecting rod 43 to rotate, thus driving the door 1 to open. When the door 1 reaches the critical opening angle, the first tooth 432a of the second connecting end 432 meshes with the second gear 72 of the second drive shaft 7, thereby driving the second gear 72 to rotate, and simultaneously driving the winding part 71 to rotate in the opposite direction to loosen at least part of the pull cable 5. At this time, the first elastic member 39a can restore its deformation, pulling the first drive shaft 31 and the swing block 38 to rotate around the swing rotation axis 37 through the limiting protrusion 311. Figure 6 and Figure 7 The second position is shown, and is limited by the limiting protrusion 311 and the swing limiting block 36, so as to drive the second gear 32 to separate from the rack 33. At the same time, the first drive shaft 31 can drive the rack limiting member 34 to rotate in a direction away from the rack 33, and the rack limiting member 34 and the tooth groove 331 of the rack 33 are disengaged. At this time, the third elastic member 39c can restore its deformation, thereby driving the rack 33 to slide inward and reset quickly, thereby driving the Huachong component 2 to descend relative to the door 1. Continue to open the door, the pull cable 5 on the winding part 71 continues to loosen, at this time the second elastic member 39b can restore its deformation, so that the first drive shaft 31 and the first gear 32 fixed on the first drive shaft 31 will rotate along the axis of the first drive shaft 31 and return to the initial position, while allowing the loosened pull cable to be wound around the first drive shaft 31. If the door 1 is opened again, the first tooth 431a on the first link 43 will fail to mesh with the second gear 72. At this time, the second drive shaft 7 will stop rotating, the cable 5 will remain stationary, and the buffer component 2 will remain in the lowering state.

[0160] Please refer to Figure 12 , Figure 12 A cross-sectional view of the door assembly provided in this application in one specific embodiment.

[0161] like Figure 12 As shown, the door 1 is provided with a receiving space 11 and a mounting groove 12. At least a portion of the buffer component 2 is disposed in the mounting groove 12. The first drive mechanism 3 is disposed in the receiving space 11, and at least a portion of the first drive mechanism 3 extends into the mounting groove 12 and is connected to the buffer component 2.

[0162] In this embodiment, as Figure 12 As shown, the accommodating space 11 can protect the first drive mechanism 3, improve the structural stability of the door assembly 10, and the first drive mechanism 3 extends at least partially into the mounting groove 12 and is connected to the buffer component 2. It can drive the buffer component 2 to slide in the mounting groove 12, realize the raising or lowering of the buffer component 2 relative to the door 1, and improve the sliding stability of the buffer component 2.

[0163] Please refer to Figure 13 , Figure 13 This is a partial structural diagram of the door assembly provided in this application in another specific embodiment.

[0164] like Figure 13 As shown, in one specific embodiment, the buffer component 2 may be provided with a connecting portion 21. The connecting portion 21 is flexibly connected to the opposite sides of the buffer component 2 and connected to the interior of the mounting groove 12, so as to prevent the buffer component 2 from detaching from the mounting groove 12 during the raising and lowering process, thereby improving the structural stability of the door assembly 10. In addition, the connecting portions 21 on both sides of the buffer component 2 are sealed to the inner wall of the mounting groove 12, which can further improve the sealing effect of the door assembly 10.

[0165] The connecting part 21 of the buffer component 2 can be glued to the inner wall of the mounting groove 12 by means of 3M tape or glue. The specific setting can be set according to actual needs and is not limited here.

[0166] Please refer to Figure 14 , Figure 14 This is a partial structural diagram of the door assembly provided in this application in another specific embodiment.

[0167] like Figure 14 As shown, in another specific embodiment, the mounting groove 12 includes a bottom 121 and an opening 122. Along the thickness direction Z of the door assembly 10, the size of the opening 122 is smaller than its width, so as to ensure that the mounting groove 12 has sufficient sliding space while enabling the buffer member 2 to seal against the opening 122 when it is raised, thereby further improving the sealing effect of the door assembly 10. Moreover, this structure is simple and reliable, and can further reduce the structural complexity of the door assembly 10, saving costs.

[0168] In another specific embodiment, such as Figure 14 As shown, the door assembly 10 also includes a sealing strip 8, which is disposed at the opening 122 and is used to make a sealing contact with the buffer component 2 to further improve the sealing effect of the door assembly 10.

[0169] The sealing strip 8 can be glued to the opening 122 of the mounting groove 12 by means of 3M tape or glue. The specific setting can be set according to actual needs and is not limited here.

[0170] In one specific embodiment, such as Figure 14As shown, the buffer component 2 includes a first buffer component 22, which is made of a flexible material. When the buffer component 2 is raised relative to the door 1 during the closing process, the flexible first buffer component 22 has a good buffering and sealing effect, which can prevent the door 1 from interfering with or colliding with other components, while improving the sealing effect of the door assembly 10.

[0171] The material of the first buffer component 22 can be flexible materials such as silicone, rubber, silicone rubber, and ethylene propylene diene monomer (EPDM). The specific material can be set according to actual needs and is not limited here.

[0172] In another specific embodiment, such as Figure 15 As shown, the buffer component 2 includes a second buffer component 23, which is made of rigid plastic. When the buffer component 2 is raised relative to the door 1 during the closing process, the rigid plastic second buffer component 23 can make sealing contact with other flexible sealing materials on the vehicle body, thereby achieving good buffering and sealing effects. This can prevent the door 1 from interfering with or colliding with other components while improving the sealing effect of the door assembly 10.

[0173] The material of the second buffer component 23 can be made of hard materials such as plastic or resin. The specific material can be set according to actual needs and is not limited here.

[0174] When the door assembly 10 is applied to a vehicle with pillarless swing doors, one door 1 can be equipped with a flexible first buffer member 22, and the other door can be equipped with a rigid second buffer member 23. When the two doors 1 are closing close together, the first flexible member 22 and the second buffer member 23 can rise and approach each other, allowing them to make pre-contact during the closing process, preventing the two doors 1 from colliding and improving the sealing effect of the door assembly 10. When the two doors 1 are opening away from each other, the first flexible member 22 and the second buffer member 23 can descend and move away from each other, reducing the friction on the contact surfaces of the first buffer member 22 and the second buffer member 23, decreasing the operating force, and facilitating the opening of the doors 1.

[0175] Please refer to Figure 15 , Figure 15 This is a partial structural diagram of the door assembly provided in this application in another specific embodiment.

[0176] In one specific embodiment, along the thickness direction of the door assembly 10, the door assembly 10 includes a plurality of buffer components 2, which are connected to the first drive mechanism 3 to achieve a more reliable sealing effect for the door assembly 10.

[0177] For example, such as Figure 15 In the specific embodiment shown, when the door assembly 10 is applied in a vehicle with a pillarless swing door, each door 1 may include a first buffer component 22 and a second buffer component 23. Specifically, in one door 1, the first buffer component 22 and the second buffer component 23 are arranged alternately along the thickness direction Z. In another door 1, the second buffer component 23 and the first buffer component 22 are arranged alternately along the thickness direction Z, so that when the door 1 is closed, the first buffer component 21 and the second buffer component 22 in one door 1 can seal against each other, thereby achieving a more reliable sealing effect for the door assembly 10.

[0178] Please refer to Figure 16 , Figure 16 This is a partial structural diagram of the door assembly provided in this application in another specific embodiment.

[0179] For example, such as Figure 16 In the specific embodiment shown, when the door assembly 10 is applied in a vehicle with a swing door without a B-pillar, one of the doors 1 can be equipped with a first buffer component 22, and the other door 1 can be equipped with a second buffer component 23 to improve the design freedom of the door assembly 10. The specific configuration can be set according to actual needs and is not limited here.

[0180] The same or similar parts between the various embodiments in this specification can be referred to mutually. In particular, the device embodiments and terminal embodiments are basically similar to the method embodiments, so the description is relatively simple, and the relevant parts can be referred to the description in the method embodiments.

[0181] The above descriptions are merely specific implementations of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiments of this application should be covered within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A door assembly, characterized in that, include: Car door; A buffer component, which is disposed on the door, is used to rise during the closing of the door or to lower during the opening of the door; A first drive mechanism is disposed on the vehicle door and connected to the buffer component, and is used to drive the buffer component to rise or fall relative to the vehicle door. A pull wire, which is connected to the first drive mechanism; The second drive mechanism is connected to the door and the cable, and is used to drive the door to open or close, and to drive the first drive mechanism to move via the cable.

2. The door assembly according to claim 1, characterized in that, The first drive mechanism includes a first transmission shaft, a first gear, and a rack; At least a portion of the pull wire is wound around and connected to the first drive shaft, so that the second drive mechanism can drive the first drive shaft to rotate via the pull wire; The first gear is sleeved on the first drive shaft; The rack meshes with the first gear and is connected to the buffer component.

3. The door assembly according to claim 2, characterized in that, The first drive shaft is movable between a first position and a second position; when the first drive shaft is in the first position, the first gear meshes with the rack; when the first drive shaft is in the second position, the first gear disengages from the rack. The second drive mechanism can drive the first drive shaft from the second position to the first position via the pull cable.

4. The door assembly according to claim 3, characterized in that, The first drive mechanism further includes a swing limiting block, which is disposed at one end of the first drive shaft along the axial direction of the first drive shaft; The swing limiting block is provided with a first sliding groove, and the first transmission shaft is provided with a limiting protrusion, which is slidably connected to the first sliding groove.

5. The door assembly according to claim 4, characterized in that, The first driving mechanism further includes a first elastic element, which is disposed within the first sliding groove; Along the sliding direction of the limiting protrusion in the first groove, one end of the first elastic member is connected to the swing limiting block, and the other end is connected to the limiting protrusion.

6. The door assembly according to claim 4, characterized in that, The first drive mechanism further includes a swing rotation shaft, which is perpendicular to the first transmission shaft; the swing rotation shaft is located at the end of the first transmission shaft away from the swing limiting block. The first driving mechanism further includes a swing block, one end of which is rotatably connected to the swing rotation shaft, and the other end of which is connected to the first transmission shaft. The first transmission shaft can rotate between the first position and the second position via the swing block around the swing rotation shaft.

7. The door assembly according to claim 6, characterized in that, The first drive shaft includes an axis, and the first drive shaft is rotatably connected to the swing block about the axis; The first drive mechanism further includes a second elastic element, one end of which is connected to the swing block, and the other end of which is connected to the first drive shaft; During the rotation of the first drive shaft around the axis, the second elastic element can undergo elastic deformation.

8. The door assembly according to claim 5, characterized in that, The first drive mechanism further includes a slide block, which is disposed on the vehicle door; the slide block is provided with a second slide groove, and the rack is slidably disposed in the second slide groove.

9. The door assembly according to claim 8, characterized in that, The first driving mechanism further includes a third elastic element, and the first elastic element is disposed in the second slide groove; Along the sliding direction of the rack, one end of the third elastic element is connected to the slide block, and the other end is connected to the rack.

10. The door assembly according to claim 3, characterized in that, The first drive mechanism further includes a rack and pinion limiting member, which is rotatably disposed on the vehicle door and is capable of rotating in a direction close to or away from the rack. When the first drive shaft is in the first position, the rack limiting member can rotate in the direction close to the rack and engage with the rack to limit the sliding of the rack; When the first drive shaft is in the second position, the rack limiting member can rotate in a direction away from the rack and disengage from the rack.

11. The door assembly according to claim 10, characterized in that, The rack is provided with toothed grooves, and the rack limiting member is engaged with the toothed grooves.

12. The door assembly according to claim 11, characterized in that, At least a portion of the rack limiting member is disposed on the side of the first drive shaft away from the rack; During the process of the first drive shaft moving from the first position to the second position, the first drive shaft can drive the rack limiting member to rotate in a direction away from the rack.

13. The door assembly according to any one of claims 1 to 12, characterized in that, The door assembly also includes a tensioning wheel, which is slidably disposed on the door, and at least a portion of the tensioning wheel abuts against the pull cable.

14. The door assembly according to any one of claims 1 to 12, characterized in that, The door assembly also includes a second drive shaft, which is connected to the second drive mechanism so that the second drive mechanism can drive the second drive shaft to rotate. The second drive shaft includes a winding portion, one end of the pull wire is connected to the first drive mechanism, and at least a portion of the other end of the pull wire is wound around and connected to the winding portion.

15. The door assembly according to claim 14, characterized in that, The second drive mechanism includes a drive component, a third transmission shaft, and a first connecting rod; The first connecting rod includes a first connecting end and a second connecting end. The first connecting end is drivenly connected to the third drive shaft, and the second connecting end is rotatably connected to the car door. The second connecting end is also drivenly connected to the second drive shaft. The driving component is connected to the third transmission shaft and is used to drive the third transmission shaft to rotate.

16. The door assembly according to claim 15, characterized in that, The second drive shaft further includes a second gear, which is connected to the winding portion; The second connecting end includes a first tooth, which meshes with the second gear.

17. The door assembly according to claim 16, characterized in that, The second connection end also includes a smoothing portion; Along the circumferential direction of the second connecting end, the first toothed portion is disposed adjacent to the smooth portion.

18. The door assembly according to any one of claims 1-12, 15-17, characterized in that, The vehicle door is provided with a receiving space and a mounting slot; At least a portion of the buffer component is disposed in the mounting slot; The first drive mechanism is disposed within the receiving space, and at least a portion of the first drive mechanism extends into the mounting slot and connects to the buffer component.

19. The door assembly according to claim 18, characterized in that, The mounting groove includes a bottom and an opening; along the thickness direction of the door assembly, the size of the opening is smaller than the size of the bottom.

20. The door assembly according to claim 19, characterized in that, The door assembly also includes a sealing strip, which is disposed at the opening and used for sealing contact with the buffer component.

21. The door assembly according to claim 19, characterized in that, Along the thickness direction of the door assembly, the door assembly includes a plurality of buffer components, and the plurality of buffer components are connected to the first drive mechanism.

22. A vehicle, characterized in that, The vehicle includes a body and a door assembly as described in any one of claims 1 to 21, the door assembly being connected to the body via the second drive mechanism.

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