Back door assembly and vehicle

Abstract

The application discloses a back door assembly and a vehicle. The back door assembly comprises a vehicle body, a first door body and a second door body. The first door body is rotatable around a first pivot shaft to selectively cover at least part of the vehicle body. The second door body is provided with a limiting part sliding on the vehicle body. The second door body is adapted to cover at least another part of the vehicle body. The edge of the second door body is hingedly connected with the first door body to selectively rotate relative to the first door body. The second door body is selectively rotatable to be folded with the first door body. The back door assembly of the application drives the second door body to move by the first door body. The limiting part limits the movement mode of the end of the second door body away from the first door body, so that the second door body can be folded with the first door body. The space occupied by the back door assembly when being opened is reduced, and the back door assembly is prevented from colliding with the external environment when being opened.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicles, and in particular to a back door assembly and a vehicle. BACKGROUND

[0002] In the prior art, the back door assembly of a vehicle is usually configured as an integrated structure of a back glass and a back door, which are unfolded together when opening the trunk. However, due to the space limitation of the parking area, the back door may not be fully opened in the limited space, or the back door is prone to collision with the building of the parking area when opened, especially when there is a fire pipe above some parking spaces, which causes the back door to directly collide with the fire pipe. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a back door assembly. The back door assembly according to the present application drives the second door body to move by the first door body, and sets a limiting part to limit the movement of the second door body away from one end of the first door body, so that the second door body can be folded with the first door body, reducing the space occupied by the back door assembly when opened, and avoiding collision between the back door assembly and the external environment when opened.

[0004] The present application also provides a vehicle comprising the above back door assembly.

[0005] The back door assembly according to the present application comprises a vehicle body, a first door body and a second door body. The first door body is rotatable about a first pivot axis to selectively cover at least part of the vehicle body. The second door body is provided with a limiting part sliding on the vehicle body. The second door body is adapted to cover at least another part of the vehicle body. The edge of the second door body is hingedly connected to the first door body to selectively rotate relative to the first door body. The second door body is selectively rotatable to be folded with the first door body.

[0006] The tailgate assembly according to the present invention comprises a first door body and a second door body. When the first door body rotates, due to the hinge connection between the first and second door bodies, the second door body rotates around the hinge position as the axis of rotation under the drive of the first door body. At this time, because a limiting part is also provided on the second door body, the limiting part slides on the vehicle body when the second door body moves, restricting the rotation of the free end of the second door body relative to the vehicle body. The limiting part and the first door body work together to make the hinged end of the second door body rotate relative to the first door body and the limiting part slide relative to the vehicle body. Finally, the second door body folds with the first door body. The movement relationship between the first and second door bodies allows the first and second door bodies to open the vehicle's trunk normally. When opening, the second door body can fold with the first door body to reduce the space occupied by the tailgate assembly when it is opened, reduce the liftback height of the tailgate assembly, avoid the vehicle being unable to open the trunk due to being in a confined space, or avoid the tailgate assembly colliding with surrounding buildings and being damaged when the trunk is opened, thus improving the safety of the tailgate assembly.

[0007] According to one embodiment of the present invention, the vehicle body is provided with a slide rail suitable for sliding of the limiting part. The slide rail includes a first track and a second track. The first track is inclined toward the interior of the vehicle body in the height direction. One end of the second track is connected to the first track, and the other end of the second track extends in the height direction. The limiting part is adapted to slide from the second track to the first track when the first door body rotates to realize the folding of the second door body and the first door body.

[0008] According to one embodiment of the present invention, the slide rail is provided with a track groove, and a roller is tumblingly connected in the track groove.

[0009] According to one embodiment of the present invention, the first track and / or the second track includes a base plate, side plates and extension plates, the side plates being configured as two spaced apart from each other and respectively connected to the base plate to define the track groove; the extension plates corresponding to and connected to the side plates and extending in a direction away from each other, the extension plates being adapted to fit against the vehicle body.

[0010] According to one embodiment of the present invention, a limiting waist-shaped groove extending in the extension direction of the slide rail is formed on the base plate, the limiting part includes a roller and a connecting shaft, the roller is received in the track groove; one end of the connecting shaft is connected to the second door body, and the other end of the connecting shaft passes through the limiting waist-shaped groove and is connected to the roller.

[0011] According to one embodiment of the present application, the back door assembly further comprises a connecting rod and a driving member, one end of the connecting rod is fixed with the first door body; the driving member is connected with the vehicle body hinge, a driving shaft is arranged on the driving member, the driving shaft is hingedly connected with the other end of the connecting rod in an extendable manner to drive the first door body to rotate around the first pivot shaft.

[0012] According to one embodiment of the present application, the included angle between the connecting rod and the driving shaft is α, and 0<α<180° is satisfied.

[0013] The vehicle according to the present application is briefly described below.

[0014] The vehicle according to the present application comprises the back door assembly in the above-mentioned embodiments, and since the vehicle according to the present application is provided with the back door assembly in the above-mentioned embodiments, when the back door assembly is assembled with the vehicle, the first door body can rotate around the first pivot shaft, the second door body can move under the driving of the first door body to realize the process of opening the trunk by the back door assembly, and in this process, the second door body can be folded with the first door body to reduce the space occupied by the back door assembly when the back door assembly is unfolded, avoid collision between the back door assembly and the external environment such as the building of the parking area of the vehicle, and improve the safety of the back door assembly.

[0015] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a structural diagram of a back door assembly according to one embodiment of the present application;

[0018] Figure 2 is an assembly diagram of a back door assembly according to one embodiment of the present application;

[0019] Figure 3 is a side view of a back door assembly according to one embodiment of the present application;

[0020] Figure 4 is Figure 1 is an enlarged view of circle A in FIG. 4;

[0021] Figure 5 is Figure 1 is an enlarged view of circle B in FIG. 4;

[0022] Figure 6 is an assembly diagram of a connecting rod and a driving member according to one embodiment of the present application.

[0023] Reference signs:

[0024] Back door assembly 1;

[0025] Vehicle body 11, slide rail 111, first rail 1111, second rail 1112;

[0026] Bottom plate 112, limiting waist groove 1121, side plate 113, extension plate 114;

[0027] First door body 12;

[0028] Second door body 13;

[0029] Limiting part 14, connecting shaft 141, roller 142;

[0030] Driving member 15, driving shaft 151, connecting rod 16. DETAILED DESCRIPTION

[0031] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0032] In the prior art, the back door assembly of a vehicle is usually configured as an integrated structure of a rear window and a back door, which are unfolded together when opening the trunk. However, due to the space limitation of the parking area, the back door may not be fully opened in the limited space, or the back door is easy to collide with the building of the parking area when opened, especially when there is a fire pipe above some parking spaces, which causes the back door to directly collide with the fire pipe.

[0033] Reference is made below Figures 1-5 A back door assembly according to an embodiment of the present application is described.

[0034] The back door assembly 1 according to the present application comprises a vehicle body, a first door body 12 and a second door body 13, the first door body 12 is rotatable around a first pivot axis to selectively cover at least part of the vehicle body, the second door body 13 is provided with a limiting part 14 sliding on the vehicle body, the second door body 13 is adapted to cover at least another part of the vehicle body, wherein the edge of the second door body 13 is hingedly connected to the first door body 12 to selectively rotate relative to the first door body 12, and the second door body 13 is selectively rotatable to be folded with the first door body 12.

[0035] The back door assembly 1 according to the present application is provided with a vehicle body, which is fixed to the vehicle body and can be understood as the vehicle body of the trunk of the vehicle. The vehicle body is provided with a first door body 12 and a second door body 13, wherein the first door body 12 covers at least part of the vehicle body, and the vehicle body is provided with a first pivot shaft, and the first door body 12 can rotate around the first pivot shaft to open or close at least part of the vehicle body; the second door body 13 covers at least another part of the vehicle body, and the edge of the second door body 13 is hingedly connected to the first door body 12 during assembly. When the back door assembly 1 is opened, the first door body 12 rotates around the first pivot shaft, and the second door body 13 moves under the drive of the first door body 12 to realize the process of opening the trunk of the vehicle by the back door assembly 1.

[0036] Notably, the free end of the second door body 13 is further provided with a limiting portion 14, which can slide on the vehicle body to limit the movement of the second door body 13. Specifically, when the first door body 12 rotates, since the first door body 12 and the second door body 13 are hingedly connected, the second door body 13 will rotate around the hinge position under the drive of the first door body 12, and at this time, since the limiting portion 14 is further provided on the second door body 13, the limiting portion 14 slides on the vehicle body when the second door body 13 moves, limiting the rotation of the free end of the second door body 13 relative to the vehicle body. The limiting portion 14 and the first door body 12 jointly act to make the end of the second door body 13 provided with the hinge rotate relative to the first door body 12 and the end of the second door body 13 provided with the limiting portion 14 slide relative to the vehicle body, and finally, the second door body 13 is folded with the first door body 12. The movement relationship between the first door body 12 and the second door body 13 enables the first door body 12 and the second door body 13 to normally open the trunk of the vehicle, and when opening, the second door body 13 can be folded with the first door body 12 to reduce the space occupied by the back door assembly 1 when opening, reduce the height of the back door assembly 1, avoid the vehicle from being unable to open the trunk due to staying in a small space, or avoid the back door assembly 1 from colliding with the surrounding buildings and being damaged when the trunk is opened, thereby improving the safety of the back door assembly 1.

[0037] According to an embodiment of the present application, the vehicle body is provided with a sliding rail 111 suitable for the sliding of the limiting portion 14, and the sliding rail 111 includes a first rail 1111 and a second rail 1112, the first rail 1111 is inclinedly arranged towards the inside of the vehicle body in the height direction; one end of the second rail 1112 is connected to the first rail 1111, and the other end of the second rail 1112 extends in the height direction; wherein the limiting portion 14 is suitable for sliding from the second rail 1112 to the first rail 1111 to realize the folding of the second door body 13 with the first door body 12 when the first door body 12 rotates.

[0038] Specifically, the back door assembly 1 can be provided with a sliding rail 111 on the vehicle body, and the limiting portion 14 on the second door body 13 can slide on the sliding rail 111. The provision of the sliding rail 111 can limit the movement of the limiting portion 14 so that the limiting portion 14 can only move in the extension direction of the sliding rail 111. Specifically, due to the provision of the sliding rail 111, the end of the second door body 13 provided with the limiting portion 14 can only move in the extension direction of the sliding rail 111, while the edge of the other end of the second door body 13 is affected by the hinge structure and the first door body 12 to rotate relative to the first door body 12 about the hinge position. Thus, the second door body 13 is affected by both the movement and the rotation to show a tendency to fold towards the first door body 12. When the first door body 12 rotates to a certain angle, the second door body 13 is finally folded to be folded with the first door body 12 to complete the process of opening the trunk by the back door assembly 1. At this time, the first door body 12 is folded with the second door body 13, which can reduce the space occupied by the back door assembly 1 when it is opened, reduce the height of the back door assembly 1, and avoid collision between the back door assembly 1 and the surrounding buildings.

[0039] The sliding rail 111 includes a first rail 1111 and a second rail 1112. The first rail 1111 is inclined towards the inside of the vehicle body in the height direction, and the position of the first rail 1111 can be adapted to the assembly position of the first door body 12. The first door body 12 can be assembled with a rear window. When assembled, the first door body 12 can be inclined, which can increase the space of the trunk and improve the overall aesthetics of the vehicle body compared with the vertical arrangement. At this time, the first rail 1111 is inclined in the same way as the first door body 12, which can make the sliding rail 111 correspond to the position of the first door body 12, avoiding the exposure of the first rail 1111. The second rail 1112 can extend in the height direction and be connected with the first rail 1111. The second rail 1112 corresponds to the assembly position of the second door body 13 to facilitate the movement of the limiting portion 14. When the first door body 12 rotates, the limiting portion 14 can move towards the first rail 1111 by the second rail 1112 to realize the folding of the second door body 13 and the first door body 12.

[0040] According to an embodiment of the present application, a rail groove is arranged in the sliding rail 111, and a roller 142 is connected in the rail groove. When the second door body 13 is assembled, the roller 142 can be connected with the second door body 13 and can be accommodated in the rail groove and roll in the rail groove. After the roller 142 is accommodated in the rail groove, the bottom wall of the rail groove can limit the roller 142 in the width direction, which improves the stability of the cooperation between the limiting portion 14 and the sliding rail 111, and further improves the stability of the movement of the second door body 13.

[0041] According to one embodiment of the present application, the first rail 1111 and / or the second rail 1112 comprises a bottom plate 112, side plates 113 and extension plates 114, the side plates 113 are configured to be spaced apart from each other and are connected to the bottom plate 112 to define a rail slot; the extension plates 114 correspond to the side plates 113 one by one and are connected and extend away from each other, and the extension plates 114 are adapted to be fitted to the vehicle body.

[0042] The first rail 1111 and the second rail 1112 can be configured in the same way, specifically, the first rail 1111 and the second rail 1112 can each be provided with a bottom plate 112, side plates 113 and extension plates 114, wherein the bottom plate 112 extends in the extension direction of the corresponding rail, the side plates 113 are configured to be spaced apart from each other, and the two side plates 113 are respectively connected to the two side edges of the bottom plate 112, and it can be understood that the side plates 113 and the bottom plate 112 are perpendicular to each other, and the bottom plate 112 and the side plates 113 cooperate to define a rail slot, the roller 142 on the limiting portion 14 can be accommodated in the rail slot, and the assembled roller 142 can slide on the bottom plate 112, and the side plates 113 can limit the roller 142 so that the roller 142 can only slide in the extension direction of the bottom plate 112, thereby realizing control of the movement mode of the second door body 13. The extension plates 114 can also be provided on the edges of the side plates 113 away from the bottom plate 112, and the extension plates 114 are configured to be two corresponding to the side plates 113 and extend away from each other, and when assembled, the extension plates 114 can be fitted to the vehicle body, thereby improving the stability of the assembly of the slide rail 111.

[0043] According to one embodiment of the present application, the bottom plate 112 is formed with a limiting waist-shaped slot 1121 extending in the extension direction of the slide rail 111, and the limiting portion 14 comprises a roller 142 and a connecting shaft 141, the roller 142 is accommodated in the rail slot; one end of the connecting shaft 141 is connected to the second door body 13, and the other end of the connecting shaft 141 passes through the limiting waist-shaped slot 1121 and is connected to the roller 142.

[0044] When assembled, the extension plates 114 are fitted to the vehicle body, at this time, the rail slot is open toward the side wall of the vehicle body, and the bottom plate 112 is close to the side wall of the second door body 13, therefore, the rear door assembly 1 further processes a limiting waist-shaped slot 1121 on the bottom plate 112, the limiting waist-shaped slot 1121 extends in the extension direction of the slide rail 111, and the limiting portion 14 further comprises a connecting shaft 141, one end of the connecting shaft 141 is connected to the second door body 13, and the other end of the connecting shaft 141 extends into the rail slot after passing through the limiting waist-shaped slot 1121 and is connected to the roller 142, when the roller 142 slides in the rail slot, the connecting shaft 141 moves in the limiting waist-shaped slot 1121. The provision of the limiting waist-shaped slot 1121 ensures that the movement of the limiting portion 14 and the second door body 13 in the extension direction of the slide rail 111 is not hindered, and the normal sliding of the roller 142 is ensured.

[0045] According to one embodiment of the present application, the back door assembly 1 further comprises a connecting rod 16 and a driving member 15, one end of the connecting rod 16 is fixed with the first door body 12, and the driving member 15 is hingedly connected with the vehicle body, and a driving shaft 151 is arranged on the driving member 15, and the driving shaft 151 is hingedly connected with the other end of the connecting rod 16 in an extendable manner to drive the first door body 12 to rotate around the first pivot shaft.

[0046] During assembly, the connecting rod 16 can be arranged at the end of the first door body 12 away from the second door body 13, and the driving shaft 151 is hingedly connected with the other end of the connecting rod 16. When the driving member 15 works, the driving shaft 151 is extended to drive the connecting rod 16 to rotate, and the connecting rod 16 drives the first door body 12 to rotate around the first pivot shaft, thereby realizing the opening of the back door assembly 1. The arrangement position of the connecting rod 16 can shorten the distance between the driving member 15 and the first door body 12, and can increase the rotating angle of the first door body 12, so as to increase the opening degree of the back door assembly 1, and facilitate the placing or taking out of the articles in the trunk. During the working process of the driving shaft, since the driving member 15 is hingedly connected with the vehicle body, when the first door body 12 rotates, the driving member 15 can also rotate relative to the vehicle body to avoid the mechanical dead point of the movement of the driving shaft 151 driving the first door body 12, thereby ensuring that the back door assembly 1 can be normally opened.

[0047] In some embodiments, the driving member 15 and the connecting rod 16 can be constructed as one-to-one correspondence of two, and the two connecting rods 16 are arranged at the ends of the first door body 12 away from the second door body 13 and located at the two sides of the first door body 12 in the width direction, and the arrangement of the two connecting rods 16 and the two driving members 15 can improve the stability of the first door body 12 when rotating.

[0048] In some embodiments, the limiting part 14 can also be constructed as two, and the two limiting parts 14 are arranged at the ends of the second door body 13 away from the first door body 12 and located at the two sides of the second door body 13 in the width direction, and the slide rails 111 corresponding to the limiting parts 14 are also constructed as two spaced apart, and the arrangement of the two limiting parts 14 can improve the stability of the second door body 13 when moving on the slide rails 111.

[0049] According to one embodiment of the present application, the included angle between the connecting rod 16 and the driving shaft 151 is α, and satisfies: 0 < α < 180°. The included angle α between the connecting rod 16 and the driving shaft 151 can avoid the mechanical dead point between the driving shaft 151 and the connecting rod 16 when the driving shaft 151 is extended or retracted, thereby ensuring that the driving member 15 can normally drive the first door body 12 to rotate.

[0050] The vehicle according to the present application is briefly described below.

[0051] The vehicle according to the present application comprises the back door assembly 1 in the above embodiment, and since the vehicle according to the present application is provided with the back door assembly 1 in the above embodiment, when the back door assembly 1 is assembled with the vehicle, the first door body 12 can rotate around the first pivot shaft, the second door body 13 can move under the drive of the first door body 12 to realize the process of opening the trunk by the back door assembly 1, and in this process, the second door body 13 can be folded with the first door body 12 to reduce the space occupied by the back door assembly 1 when it is unfolded, avoid collision between the back door assembly 1 and the building or other external environment in the parking area of the vehicle, and improve the safety of the back door assembly 1.

[0052] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0053] In the description of the present application, "first feature" and "second feature" can include one or more of the features.

[0054] In the description of the present application, "a plurality of" means two or more.

[0055] In the description of the present application, "above" or "below" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0056] In the description of the present application, "above", "over" and "on" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height.

[0057] In the description of the present application, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application. Numerous modifications, changes, variations, substitutions, and equivalents will occur to those skilled in the art without departing from the spirit and scope of the present application as defined by the following claims and their equivalents.

Claims

1. A tailgate assembly, characterized in that, include: Body; A first door, which is rotatable about a first pivot axis to selectively cover at least a portion of the vehicle body; The second door has a limiting part that slides on the vehicle body. The second door is adapted to cover at least another part of the vehicle body. The edge of the second door is hinged to the first door so that it can be selectively rotated relative to the first door. The second door can also be selectively rotated to fold with the first door. A connecting rod, one end of which is fixed to the first door body; A driving component is hinged to the vehicle body, and a driving shaft is provided on the driving component. The driving shaft is retractably hinged to the other end of the connecting rod to drive the first door body to rotate around the first pivot axis. The vehicle body is provided with a slide rail suitable for sliding of the limiting part. The slide rail is provided with a track groove, and a roller is rolledly connected in the track groove. The slide rail includes: a first track and a second track. The first track is inclined towards the inside of the vehicle body in the height direction. One end of the second track is connected to the first track, and the other end of the second track extends in the height direction. The first track and / or the second track includes: a base plate, side plates, and extension plates. The side plates are configured as two spaced apart from each other and respectively connected to the base plate to define the track groove. The extension plates correspond one-to-one with and are connected to the side plates, extending in a direction opposite to each other. The extension plates are adapted to fit against the vehicle body. The limiting part is adapted to move from the second track to the first track when the first door body rotates, so as to realize the folding of the second door body and the first door body.

2. The tailgate assembly according to claim 1, characterized in that, A limiting groove extending in the extension direction of the slide rail is formed on the base plate, and the limiting part includes: A roller, which is housed within the track groove; A connecting shaft, one end of which is connected to the second door body, and the other end of which passes through the limiting waist groove and is connected to the roller.

3. The rear tailgate assembly according to claim 2, characterized in that, The angle between the connecting rod and the drive shaft is α, and satisfies: 0 < α < 180°.

4. A vehicle, characterized in that, Includes the rear tailgate assembly as described in any one of claims 1-3.

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