Tail door system of vehicle and vehicle

Abstract

The utility model provides a tail door system of a vehicle. The tail door system comprises a door part and a force application device. The door part is pivotally connected to a vehicle body of the vehicle, the door part is approximately horizontally arranged relative to a pivot axis of the vehicle body, and when the door part is in the closed position, the gravity center of the door part is located above the pivot axis; the force application device is connected to the door component and the vehicle body, and the force application device is arranged to apply resistance to the door component when the door component is in the opening process. The utility model further provides a vehicle.

Description

Technical Field

[0001] The present disclosure relates to a tailgate system of a vehicle and the vehicle. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] Vehicles in the prior art, such as station wagons, off-road vehicles (SUVs), and crossover vehicles (XUVs), have relatively high chassis. When the tailgates of these vehicles only include one door, loading and unloading cargo into the vehicle is difficult.

[0004] To this end, vehicles in the prior art can be provided with a sky and earth door system, that is, the sky and earth door system of the vehicle includes two doors, one of which can be opened upwards and the other door can be opened downwards, thereby making it convenient for users to load and unload goods into the vehicle.

[0005] However, when the door located at the bottom is opening, the gravity of the door will actuate the opening process, making the opening process difficult to be effectively controlled, resulting in a poor user experience.

[0006] Therefore, it is necessary to design a tailgate system of a vehicle and a vehicle to solve the above-mentioned technical problems. Utility Model Content

[0007] In order to solve one of the above technical problems, the present disclosure provides a tailgate system for a vehicle and a vehicle.

[0008] According to one aspect of the present disclosure, a tailgate system for a vehicle is provided, comprising:

[0009] a door component pivotally connected to a body of the vehicle, wherein a pivot axis of the door component is disposed generally horizontally relative to the body and a center of gravity of the door component is located above the pivot axis when the door component is in a closed position; and

[0010] A force applying device is connected to the door component and the vehicle body, wherein the force applying device is configured to apply resistance to the door component when the door component is in the opening process.

[0011] According to at least one embodiment of the present disclosure, the tailgate system for a vehicle includes an open position and a closed position, and the door component is movable between the open position and the closed position when rotating about a pivot axis.

[0012] According to the tailgate system of a vehicle of at least one embodiment of the present disclosure, when the door component is in a closed position, the force-applying device applies a first pulling force to the door component, and the first pulling force can hinder the opening movement of the door component; when the door component is in a closed position, the force-applying device applies a second pulling force to the door component, and the second pulling force is used to actuate the closing movement of the door component; wherein the first pulling force is smaller than the second pulling force.

[0013] According to at least one embodiment of the vehicle tailgate system of the present disclosure, the force applying device includes:

[0014] A spring element, one end of which is connected to the door component, and the other end of which is connected to the vehicle body via a connecting rod structure; wherein the spring element is in a stretched state.

[0015] According to at least one embodiment of the present disclosure, the vehicle tailgate system, the link structure includes:

[0016] a plate member rotatably disposed on the door member; wherein the spring element is connected to the plate member and is capable of applying a tensile force to the plate member;

[0017] a rod component, one end of the rod component being rotatably connected to the plate component, and the other end of the rod component being rotatably connected to the door component;

[0018] The plate component is configured such that when the door component moves from the closed position to the open position, the spring element is stretched as the plate component rotates.

[0019] According to at least one embodiment of the vehicle tailgate system of the present disclosure, the force applying device includes:

[0020] A damping element, one end of which is pivotally connected to the door component, and the other end of which is pivotally connected to the connecting rod structure and connected to the vehicle body through the connecting rod structure.

[0021] According to at least one embodiment of the present disclosure, the vehicle tailgate system, the link structure includes:

[0022] a plate member rotatably disposed on the door member; wherein the damping element is pivotally connected to the plate member;

[0023] a rod component, one end of the rod component being rotatably connected to the plate component, and the other end of the rod component being rotatably connected to the door component;

[0024] The plate component is configured such that when the door component moves from the closed position to the open position, the damping element provides damping as the plate component rotates.

[0025] According to the vehicle tailgate system of at least one embodiment of the present disclosure, a support frame is provided on the door component, and the plate component is rotatably provided on the support frame.

[0026] According to the tailgate system of a vehicle of at least one embodiment of the present disclosure, the panel component includes three corners, one corner of the panel component is rotatably disposed on a support frame; another corner of the panel component is connected to a spring element or a damping element; and the third corner of the panel component is rotatably connected to a rod component.

[0027] According to at least one embodiment of the vehicle tailgate system of the present disclosure, one end of the rod member is connected to the panel member via a ball joint; and the other end of the rod member is connected to the door member via a ball joint.

[0028] According to another aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned vehicle tailgate system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0030] Figure 1 1 is a schematic structural diagram of a tailgate system of a vehicle according to one embodiment of the present disclosure.

[0031] Figure 2 2 is a schematic structural diagram of a vehicle tailgate system from another angle according to an embodiment of the present disclosure.

[0032] Figure 3 2 is a schematic structural diagram of a force applying device according to an embodiment of the present disclosure.

[0033] Figure 4 1 is a schematic structural diagram of a portion of a driving structure according to an embodiment of the present disclosure.

[0034] Figure 5 It is a structural schematic diagram of a nut of a driving structure according to an embodiment of the present disclosure.

[0035] Figure 6 Schematic diagram of the structure of the upper support frame and the lower support frame of the driving structure according to one embodiment of the present disclosure.

[0036] Figure 7 Schematic diagram of an exploded structure of a portion of a driving structure according to one embodiment of the present disclosure.

[0037] Figure 8It is a structural schematic diagram of a force applying device according to another embodiment of the present disclosure.

[0038] The specific reference numerals in the figure are:

[0039] 100 door parts

[0040] 110 Covering

[0041] 120 connection part

[0042] 130 Second bracket

[0043] 200 force device

[0044] 210 connecting rod structure

[0045] 211 board parts

[0046] 212 rod parts

[0047] 213 support frame

[0048] 214 First ball head structure

[0049] 220 Spring element

[0050] 230 Damping element

[0051] 300 hull

[0052] 310 First Bracket

[0053] 320 Third bracket

[0054] 330 Second ball head structure

[0055] 340 Fourth Bracket

[0056] 350 third ball head structure

[0057] 400 drive unit

[0058] 410 housing

[0059] 420 drive element

[0060] 430 transmission components

[0061] 431 Worm

[0062] 432 Worm Gear

[0063] 440 nut

[0064] 450 screw

[0065] 460 upper support frame

[0066] 461 upper bearing

[0067] 470 lower support frame

[0068] 471 lower bearing

[0069] 480 pin structure. DETAILED DESCRIPTION

[0070] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the relevant content and are not intended to limit the present disclosure. It should also be noted that, for ease of description, only the portions relevant to the present disclosure are shown in the accompanying drawings.

[0071] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0072] Unless otherwise stated, the exemplary embodiments / examples shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of the various embodiments / examples may be further combined, separated, interchanged, and / or rearranged without departing from the technical concepts of the present disclosure.

[0073] The use of cross hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise indicated, the presence or absence of cross hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the order described. In addition, the same figure numbers represent the same components.

[0074] When a component is referred to as being “on,” “over,” “connected to,” or “coupled to” another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another component, there are no intervening components present. For this purpose, the term “connected” may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0075] For descriptive purposes, the present disclosure may use spatially relative terms such as "below," "beneath," "under," "down," "above," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the drawings is turned over, a component described as "below" or "beneath" another component or feature would then be positioned "above" the other component or feature. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0076] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0077] Figure 1 1 is a schematic structural diagram of a tailgate system of a vehicle according to one embodiment of the present disclosure. Figure 2 2 is a schematic structural diagram of a vehicle tailgate system from another angle according to an embodiment of the present disclosure.

[0078] like Figure 1 and Figure 2 As shown, the tailgate system of the vehicle disclosed herein may include components such as a door component 100 and a force applying device 200 .

[0079] The door component 100 of the present disclosure is pivotally connected to the vehicle body 300, wherein the door component 100 is disposed substantially horizontally with respect to the vehicle body 300 about a pivot axis, and when the door component 100 is in the closed position, the center of gravity of the door component 100 is located above the pivot axis. Furthermore, when the door component 100 is in the open position, the center of gravity of the door component 100 may be located above or below the pivot axis, and the present disclosure is not limited thereto.

[0080] That is, the door component 100 of the present disclosure may be a floor door in a vehicle's ceiling and ceiling doors. Thus, during the opening process of the door component 100 , the center of gravity of the door component 100 will gradually decrease.

[0081] Specifically, the door component 100 of the present disclosure may include a covering portion 110 and a connecting portion 120 ; wherein the covering portion 110 can be formed as at least a portion of the outer surface of the vehicle, and the connecting portion 120 is provided on the covering portion 110 for connecting components such as the force applying device 200 .

[0082] The door component 100 of the present disclosure includes an open position and a closed position, wherein when the door component 100 is in the closed position, the cover portion 110 is substantially vertically disposed, and accordingly, the connecting portion 120 is substantially horizontally disposed. When the door component 100 is in the open position, the cover portion 110 is substantially horizontally disposed, and accordingly, the connecting portion 120 is substantially vertically disposed.

[0083] In some embodiments, a first bracket 310 is provided on the vehicle body 300, and a second bracket 130 is provided on the connecting portion 120 of the door component 100, and the first bracket 310 and the second bracket 130 are pivotally connected around the above-mentioned pivot axis, so that the door component 100 and the vehicle body 300 can rotate relative to each other. Moreover, due to the setting of the first bracket 310 and the second bracket 130, the connecting portion 120 of the door component 100 can be away from the vehicle body 300. Accordingly, when the door component 100 rotates, it will not collide with the vehicle body 300.

[0084] In addition, the first brackets 310 of the present disclosure may be provided in two numbers, and correspondingly, the second brackets 130 may also be provided in two numbers, so that the door component 100 has a stable envelope during the opening or closing process.

[0085] The door member 100 is movable between an open position and a closed position when it is rotated about the pivot axis.

[0086] Those skilled in the art will appreciate that the vehicle tailgate system disclosed herein may further include a sash (not shown) pivotally connected to the vehicle frame. Furthermore, as the sash opens, its center of gravity gradually rises. In one specific embodiment, the sash can be connected to the vehicle frame via a tailgate support rod and an electric actuator, enabling the sash to open automatically. Since the structure of the sash can be implemented using existing solutions, this disclosure will not further elaborate on this aspect.

[0087] The force applying device 200 is connected to the door component 100 and the vehicle body 300 , wherein the force applying device 200 is configured to apply resistance to the door component 100 when the door component 100 is in the opening process; and apply actuating force to the door component 100 when the door component 100 is in the closing process.

[0088] Specifically, when the door component 100 is in the closed position, the force-applying device 200 applies a first pulling force to the door component 100, and the first pulling force can hinder the opening movement of the door component 100; when the door component 100 is in the closed position, the force-applying device 200 applies a second pulling force to the door component 100, and the second pulling force is used to actuate the closing movement of the door component 100; wherein, the first pulling force is smaller than the second pulling force.

[0089] When the vehicle tailgate system of the present disclosure is in use, the center of gravity of the door component 100 gradually decreases as the door component 100 moves from the closed position to the open position. As the opening angle increases, the center of gravity of the door component 100 decreases more rapidly. Consequently, the pulling force applied to the door component 100 by the force-applying device 200 of the present disclosure also gradually increases, thereby damping the opening process of the door component 100 and reducing the opening speed of the door component 100.

[0090] When the door component 100 is in the closed position, the driving device 400 can apply a thrust to the door component 100, thereby causing the door component 100 to move from the closed position to the open position. During this process, the driving device 400 can adopt different control strategies depending on the relationship between the first torque generated on the door component 100 by the pulling force applied by the force-applying device 200 to the door component 100 and the second torque generated by the weight of the door component 100.

[0091] Specifically, when the first torque is greater than the second torque, the driving device 400 needs to apply thrust to the door component 100 so that the door component 100 is opened normally; on the other hand, when the first torque is less than or equal to the second torque, the driving device 400 needs to produce a certain braking effect so that the door component 100 is opened in a controllable manner.

[0092] Figure 32 is a schematic structural diagram of a force applying device according to an embodiment of the present disclosure.

[0093] The force applying device 200 of the present disclosure may include components such as a connecting rod structure 210 and a spring element 220 .

[0094] Among them, one end of the spring element 220 is connected to the door component 100, and the other end of the spring element 220 is connected to the vehicle body 300 through the connecting rod structure 210; thus, the tailgate system of the vehicle disclosed in the present invention can apply tension to the door component 100 through the tension generated by the spring element 220 in a stretched state.

[0095] That is to say, in the tailgate system of the vehicle disclosed herein, no matter which position the door component 100 is in, that is, no matter whether the door component 100 is in the closed position or the open position, or in an intermediate position between the closed position and the open position, the spring element 220 is in a stretched state, and accordingly, the force applying device 200 can always apply a pulling force to the door component 100.

[0096] More specifically, the connecting rod structure 210 may include: a plate component 211 , a rod component 212 , a support frame 213 and other components.

[0097] The support frame 213 may be disposed on the door component 100 , for example, on the connecting portion 120 of the door component 100 . Thus, the support frame 213 of the present disclosure can move along with the movement of the door component 100 .

[0098] The plate member 211 is rotatably mounted on the support frame 213 , thereby enabling the plate member 211 to rotate relative to the door member 100 . In a preferred embodiment, the pivot axis of the plate member 211 relative to the door member 100 is perpendicular or substantially perpendicular to the cover portion 110 of the door member 100 .

[0099] In a specific embodiment, the plate component 211 includes three corners, one corner of the plate component 211 can be rotatably set on the support frame 213; the other corner of the plate component 211 is connected to the other end of the spring element 220, and at this time, one end of the spring element 220 is connected to the door component 100; accordingly, the spring element 220 can apply a pulling force to the plate component and make the plate component 211 have a rotation tendency.

[0100] The third corner of the plate component 211 is rotatably connected to one end of the rod component 212, and the other end of the rod component 212 is rotatably connected to the door component 100; thus, when the vehicle door is opened or closed, the plate component 211 is used as an intermediate force transmission mechanism to enable the spring element 220 to store or release energy, and accordingly, the rod component 212 is always in a compressed state.

[0101] In one embodiment, the plate member 211 is configured such that when the door member 100 moves from the closed position to the open position, the spring element 220 is extended as the plate member 211 rotates. Conversely, when the door member 100 moves from the open position to the closed position, the spring element 220 is shortened as the plate member 211 rotates, thereby releasing some of its elastic potential energy.

[0102] In the present disclosure, a first ball head structure 214 is provided on the plate member 211, wherein the first ball head structure 214 has a preset distance from a surface of the plate member 211. In addition, a third bracket 320 is provided on the vehicle body 300, and a second ball head structure 330 is provided on the third bracket 320. In this case, both ends of the rod member 212 are formed into ball-and-socket structures. Accordingly, the ball-and-socket structure at one end of the rod member 212 cooperates with the first ball head structure 214 to form a ball-hinged connection structure. Moreover, the ball-and-socket structure at the other end of the rod member 212 cooperates with the second ball head structure 330 to form a ball-hinged connection structure. Thus, one end of the rod member 212 is connected to the plate member 211 via a ball-hinged connection, and the other end of the rod member 212 is connected to the door member 100 via a ball-hinged connection.

[0103] Therefore, through the ball hinge connection structure, the rod component 212 can have more rotational freedom, so that during the opening or closing process of the door component 100, the movement of the door component 100 and the movement of the rod component 212 will not interfere, and accordingly, the rod component 212 will not be stuck.

[0104] Figure 4 1 is a schematic structural diagram of a portion of a driving structure according to an embodiment of the present disclosure. Figure 5 It is a structural schematic diagram of a nut of a driving structure according to an embodiment of the present disclosure. Figure 6 Schematic diagram of the structure of the upper support frame and the lower support frame of the driving structure according to one embodiment of the present disclosure. Figure 7 Schematic diagram of an exploded structure of a portion of a driving structure according to one embodiment of the present disclosure.

[0105] In this disclosure, Figure 1 and Figure 2 As shown, the driving device 400 of the present disclosure can be fixed to the door component 100 and connected to the vehicle body 300 , so that when the driving device 400 is actuated, the door component 100 can be opened or closed.

[0106] Specifically, a fourth bracket 340 is provided on the vehicle body 300, and a third ball head structure 350 is provided on the fourth bracket 340. Accordingly, the driving device 400 can form a ball and socket structure, and form a ball joint connection with the third ball head structure 350 through the ball and socket structure to prevent the driving device 400 from getting stuck during the process of opening or closing the door component 100.

[0107] In one embodiment, Figures 4 to 7 As shown, the driving device 400 of the present disclosure may include: a housing 410, a driving element 420, a transmission assembly 430, a nut 440, a screw rod 450 and other components.

[0108] The housing 410 of the present disclosure can be fixed to the connecting portion 120 of the door component 100, thereby enabling the driving device 400 of the present disclosure to be fixed to the door component 100. Of course, those skilled in the art should be aware that the driving device 400 of the present disclosure can also be fixed to the vehicle body 300 and connected to the door component 100. Accordingly, this connection method can also realize the driving of the door component 100 and enable the door component 100 to be opened or closed.

[0109] The driving element 420 can be fixed to the housing 410 and used to provide driving force; in a specific embodiment, the driving element 420 can be selected as a motor, which can be a DC motor, a servo motor or a reduction motor, etc., and the motor can use a 12V DC power supply, so that the driving device 400 disclosed in the present invention can be easily connected to the low-voltage power supply of the vehicle.

[0110] The transmission assembly 430 is used to receive the driving force provided by the driving element 420, and the transmission assembly 430 has a rotation axis; in a specific embodiment, the transmission assembly 430 may include a worm 431 and a worm wheel 432; wherein, the worm 431 is connected to the driving element 420, for example, the worm 431 can be connected to the output shaft of the driving element 420 to receive the driving force provided by the driving element 420, and the rotation axis of the worm wheel 432 coincides with the rotation axis of the driving element 420.

[0111] The worm wheel 432 is in transmission connection with the worm 431 , so that the rotation of the worm 431 drives the worm wheel 432 to rotate, wherein the rotation axis of the worm wheel 432 is the rotation axis of the transmission assembly 430 mentioned above.

[0112] The nut 440 is disposed on the transmission assembly 430 and is driven to rotate by the transmission assembly 430. The screw rod 450 cooperates with the nut 440 so that when the nut 440 is driven and rotated by the transmission assembly 430, the screw rod 450 can generate axial movement relative to the nut 440. In one specific embodiment, a ball-and-socket structure is formed at one end of the nut 440, and the ball-and-socket structure can form a spherical joint connection with the third ball head structure 350.

[0113] The nut 440 has at least two swing axes relative to the transmission assembly 430, so that the angle between the axis of the screw rod 450 and the rotation axis of the transmission assembly 430 can be changed; that is, the axis of the screw rod 450 disclosed in the present invention can be inconsistent with the rotation axis of the worm gear 432. Accordingly, when the door component 100 is in the process of opening or closing, the axis of the screw rod 450 can change position relative to the rotation axis of the worm gear 432, thereby, the driving device 400 will not cause problems such as jamming.

[0114] In a preferred embodiment, Figures 5 to 7 As shown, the worm gear 432 of the present disclosure is internally provided with an upper support frame 460 and a lower support frame 470, wherein the upper support frame 460 and the lower support frame are both transmission-connected to the worm gear 432. In a specific embodiment, a tooth-like protrusion is formed on the inner surface of the worm gear 432, and correspondingly, a groove structure is formed on the upper support frame 460 and the lower support frame 470. By setting the tooth-like protrusion in the groove structure, the transmission connection between the worm gear 432 and the upper support frame 460 and the lower support frame 470 is achieved. In other words, in the present disclosure, the worm gear 432, the upper support frame 460 and the lower support frame 470 can rotate synchronously.

[0115] An upper bearing 461 is provided on the upper support frame 460; a lower bearing 471 is provided on the lower support frame 470. Thus, the overall structure formed by the worm gear 432, the upper support frame 460 and the lower support frame 470 of the present disclosure can be rotatably supported inside the shell 410 through the upper bearing 461 and the lower bearing 471; at the same time, the shell 410 can also limit the axial position of the upper bearing 461 and the lower bearing 471, so that the upper support frame 460 and the lower support frame 470 of the present disclosure can be in close contact without separation.

[0116] In a preferred embodiment, a spherical groove is formed inside the upper support frame 460; a spherical groove is formed inside the lower support frame 470, at least a portion of the outer surface of the nut 440 is formed into a spherical surface, and the nut 440 forms a spherical fit with the upper support frame 460 and the lower support frame 470; in other words, the nut 440 of the present disclosure can also form a spherical joint connection between the overall structure formed by the upper support frame 460 and the lower support frame 470.

[0117] In order to drive the nut 440, in the present disclosure, a pin structure 480 is provided on the nut 440, and an upper accommodating groove is formed on the upper support frame 460. At least part of the pin structure 480 is located in the upper accommodating groove. Therefore, when the upper support frame 460 generates a rotation movement, the side wall of the upper accommodating groove can be in pressure contact with the pin structure 480, thereby driving the nut 440 to rotate.

[0118] In a preferred embodiment, there may be two pin structures 480 , and the two pin structures 480 are located on the same diameter line of the nut 440 .

[0119] In the present disclosure, the width of the upper accommodating groove is greater than the diameter of the pin structure 480; the height of the upper accommodating groove is greater than the diameter of the accommodating groove. Therefore, the pin structure 480 has a certain amount of movement margin in the accommodating groove, so that the nut 440 produces a multi-degree-of-freedom swinging motion.

[0120] In the tailgate system of the vehicle disclosed in the present invention, due to the provision of the force applying device 200 , the driving device 400 can use a motor with relatively small power, thereby solving the problems mentioned in the background art.

[0121] Figure 8 It is a structural schematic diagram of a force applying device according to another embodiment of the present disclosure.

[0122] like Figure 8 As shown, the implementation method of the force-applying device 200 is different from the above-mentioned embodiment in that the spring element 220 is replaced by a damping element 230; at this time, one end of the damping element 230 is pivotally connected to the door component 100, and the other end of the damping element 230 is pivotally connected to the plate component 211.

[0123] In a preferred embodiment, one end of the damping element 230 is connected to the door component 100 via a ball joint, and the other end of the damping element 230 is also connected to the vehicle body 300 via a ball joint; thus, by the provision of the damping element 230, the speed of the door component 100 during the opening process will be reduced, making the opening process of the door component 100 easier to control. In addition, during the closing process of the door component 100, due to the provision of the damping element 230, a driving device 400 with a greater driving force is required; at this time, according to the damping effect of the damping element 230, a driving device 400 with a suitable power can be selected. According to another aspect of the present disclosure, a vehicle is provided, which includes the tailgate system of the above-mentioned vehicle.

[0124] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0125] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0126] Those skilled in the art will appreciate that the above embodiments are merely intended to clearly illustrate the present disclosure and are not intended to limit the scope of the present disclosure. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present disclosure.

Claims

1. A tailgate system for a vehicle, characterized in that: include: a door component pivotally connected to a body of the vehicle, wherein a pivot axis of the door component is disposed generally horizontally relative to the body and a center of gravity of the door component is located above the pivot axis when the door component is in a closed position; and A force applying device is connected to the door component and the vehicle body, wherein the force applying device is configured to apply resistance to the door component when the door component is in the opening process.

2. The tailgate system of a vehicle according to claim 1, characterized in that: The door component includes an open position and a closed position, and is movable between the open position and the closed position when the door component rotates about a pivot axis.

3. The tailgate system of a vehicle according to claim 2, characterized in that: When the door component is in the closed position, the force-applying device applies a first pulling force to the door component, and the first pulling force can hinder the opening movement of the door component; when the door component is in the closed position, the force-applying device applies a second pulling force to the door component, and the second pulling force is used to actuate the closing movement of the door component; wherein the first pulling force is smaller than the second pulling force.

4. The tailgate system of a vehicle according to claim 1, characterized in that: The force applying device comprises: A spring element, one end of which is connected to the door component, and the other end of which is connected to the vehicle body via a connecting rod structure; wherein the spring element is in a stretched state.

5. The tailgate system of a vehicle according to claim 4, characterized in that: The connecting rod structure comprises: a plate member rotatably disposed on the door member; wherein the spring element is connected to the plate member and is capable of applying a tensile force to the plate member; a rod component, one end of the rod component being rotatably connected to the plate component, and the other end of the rod component being rotatably connected to the door component; The plate component is configured such that when the door component moves from the closed position to the open position, the spring element is stretched as the plate component rotates.

6. The vehicle tailgate system according to claim 1, characterized in that: The force applying device comprises: A damping element, one end of which is pivotally connected to the door component, and the other end of which is pivotally connected to the connecting rod structure and connected to the vehicle body through the connecting rod structure.

7. The tailgate system of a vehicle according to claim 6, characterized in that: The connecting rod structure comprises: a plate member rotatably disposed on the door member; wherein the damping element is pivotally connected to the plate member; a rod component, one end of the rod component being rotatably connected to the plate component, and the other end of the rod component being rotatably connected to the door component; The plate component is configured such that when the door component moves from the closed position to the open position, the damping element provides damping as the plate component rotates.

8. The vehicle tailgate system according to claim 5 or 7, characterized in that: A support frame is provided on the door component, and the plate component is rotatably provided on the support frame.

9. The tailgate system of a vehicle according to claim 8, characterized in that: The plate component includes three corners, one corner of the plate component is rotatably mounted on a support frame; another corner of the plate component is connected to a spring element or a damping element; and a third corner of the plate component is rotatably connected to a rod component. Optionally, one end of the rod component is connected to the plate component via a ball joint; the other end of the rod component is connected to the door component via a ball joint.

10. A vehicle, characterized in that: A tailgate system for a vehicle comprising the vehicle according to any one of claims 1-9.

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