Drivetrain, Vehicle

Abstract

The application provides a driving assembly, a vehicle; the driving assembly comprises a multi-link mechanism and a driving device; the driving device comprises a connecting shell and a linear motion body connected with each other, the connecting shell is used for being rotatably arranged on a vehicle upper part, the linear motion body can linearly move relative to the connecting shell to apply force to the multi-link mechanism; the multi-link mechanism comprises a bearing, a first link, a second link, an auxiliary link set and a motion seat; the bearing is used for being fixedly arranged on the vehicle upper part, the motion seat is used for being drivingly connected with a spoiler assembly located on the vehicle upper part, the first link is rotatably arranged on the bearing, one end of the first link is rotatably connected with the linear motion body, and the other end of the first link is slidably connected with the second link; the second link is drivingly connected with the auxiliary link set, the auxiliary link set is drivingly connected with the motion seat; the auxiliary link set comprises at least one link; and the motion seat can be turned over under the driving of the auxiliary link set.

Description

Technical Field

[0001] This invention specifically relates to drive assemblies and vehicles. Background Technology

[0002] Designers commonly use rotary motors as drive sources to power multi-link mechanisms. For example, vehicles often have aerodynamic components such as electric rear wings. These components typically need to be connected to a stable and reliable drive assembly to be driven by the drive assembly and thus change their attitude according to preset settings and / or the owner's needs. More specifically, the principle of changing the attitude of an electric rear wing is usually as follows: the drive assembly includes a multi-link mechanism and a rotary motor. The electric rear wing is connected to the linkage mechanism, which in turn is connected to the rotary motor. The rotary motor directly outputs rotational force to the linkage mechanism, thereby causing the linkage mechanism to drive the electric rear wing to change its attitude.

[0003] The inventors of this case discovered that the commonly used method of using a rotary motor as a drive source by designers to some extent limits the diversity of ways to drive multi-link mechanisms, thus limiting the design diversity of drive assemblies and vehicles. Furthermore, there is currently no drive assembly in which the multi-link mechanism can be connected to and driven by a linear motion drive device such as an electric strut / push rod, thereby driving the electric tail wing to change its attitude. Based on this, the inventors of this case believe that a drive assembly can be designed in which the multi-link mechanism can be connected to a linear motion drive device such as an electric strut / push rod, thereby expanding the design diversity of ways to drive multi-link mechanisms, and thus expanding the design diversity of drive assemblies and vehicles. Summary of the Invention

[0004] The purpose of this invention is to provide a drive assembly and a vehicle.

[0005] The drive assembly provided by the present invention includes a multi-link mechanism and a drive device; the drive device includes a connected connecting housing and a linear motion body, the connecting housing is rotatably mounted on the upper part of the vehicle, and the linear motion body can move linearly relative to the connecting housing to apply force to the multi-link mechanism;

[0006] The multi-link mechanism includes a support, a first link, a second link, an auxiliary link group, and a motion seat. The support is fixed to the upper part of the vehicle, and the motion seat is driven to a spoiler assembly located on the upper part of the vehicle. The first link is rotatably mounted on the support, and one end of the first link is rotatably connected to the linear motion body, and the other end is slidably connected to the second link. The second link is driven to the auxiliary link group, and the auxiliary link group is driven to the motion seat. The auxiliary link group includes at least one link. The motion seat can be rotated under the drive of the auxiliary link group.

[0007] Optionally, an input component is fixed on the first connecting rod, and the linear motion body forms a ball-and-socket joint connection with the input component at one end; the connecting housing is used to form a ball-and-socket joint connection with the upper part of the vehicle; the connection point between the linear motion body and the input component, and the connection point between the connecting housing and the upper part of the vehicle, are respectively located at two opposite ends of the drive device.

[0008] Optionally, a groove is provided on the first connecting rod, and a force transmission element is provided on the second connecting rod; the force transmission element includes a rod body fixedly connected to the second connecting rod and a driven body connected to the rod body; the driven body extends into the groove and is slidably connected to the groove, and can move adaptively in the groove as the first connecting rod rotates; the connection between the rod body and the driven body forms a ball-and-socket type fit connection, so that the driven body can move relative to the rod body.

[0009] Optionally, a groove is provided on the first connecting rod, and a force transmission element is provided on the second connecting rod; the force transmission element includes a rod body connected to the second connecting rod and a driven body fixedly connected to the rod body; the driven body extends into the groove and is slidably connected to the groove, and can move adaptively in the groove as the first connecting rod rotates; the connection between the rod body and the second connecting rod forms a ball-and-socket type fit connection, so that the force transmission element can move relative to the second connecting rod.

[0010] Optionally, the first link and the second link are slidably connected; the auxiliary link group includes one link, one end of which and the opposite end of which are rotatably connected to the bearing and the motion seat respectively; the second link is rotatably connected to the link between these two ends.

[0011] Optionally, the auxiliary linkage group includes a third link, a fourth link, a fifth link, and a sixth link; the first link and the second link are slidably connected, and one end of the third link and its opposite end are rotatably connected to the bearing and the sixth link, respectively;

[0012] Between one end of the third link and its opposite end, the second link is rotatably connected to the third link, and the fourth link is rotatably connected to the third link; on the fourth link, one end is rotatably connected to the motion seat, the opposite end is rotatably connected to the fifth link, and between these two ends is rotatably connected to the third link; the fifth link is rotatably connected to the bearing at one end, and this end is the end away from the connection point between the fifth link and the fourth link; at the end of the sixth link away from its connection point with the third link, the sixth link is rotatably connected to the motion seat.

[0013] Optionally, the first connecting rod is a V-shaped body, with its middle portion rotatably connected to the bearing, one end of its middle side connected to the driving device, and the other end of its middle side slidably connected to the second connecting rod.

[0014] The present invention also provides a vehicle including the drive assembly as described in any of the preceding claims.

[0015] Optionally, it also includes a spoiler assembly disposed on the upper part of the vehicle, and the motion seat is throttle-connected to the spoiler assembly; one end of the drive device is rotatably connected to the multi-link mechanism, and the end of the drive device away from the multi-link mechanism is rotatably disposed on the upper part of the vehicle.

[0016] The present invention also provides a drive assembly, including a multi-link mechanism and a drive device; the drive device includes a connected housing and a linear motion body, the connected housing being rotatably connected to a first object, and the linear motion body being movable relative to the connected housing to apply force to the multi-link mechanism;

[0017] The multi-link mechanism includes a support, a first link, a second link, an auxiliary link group, and a motion seat. The support is a fixed part, and the motion seat is used for transmission connection with a second object. The first link is rotatably mounted on the support, and one end of it is rotatably connected to the linear motion body, and the other end is slidably connected to the second link. The second link is transmissionally connected to the auxiliary link group, and the auxiliary link group is transmissionally connected to the motion seat.

[0018] In summary, by designing the first link, the second link, and the auxiliary link group, and correspondingly setting a drive device including a linear motion body, the multi-link mechanism in the drive assembly provided by the present invention can be driven by a linear motion drive device, thereby expanding the design diversity of the drive assembly and the vehicle.

[0019] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a simplified schematic diagram of a drive device connected at one end to a bracket and at the other end to an input component in an embodiment of the present invention.

[0021] Figure 2 Explosion of the multi-link mechanism in the embodiments of the present invention Figure 1 (The rotating joints have been filled in for illustration purposes).

[0022] Figure 3 This is a schematic diagram of a multi-link mechanism in an embodiment of the present invention. Figure 1 (The rotating joints have been filled in for illustration purposes).

[0023] Figure 4 This is a simplified schematic diagram of the drive assembly layout on a vehicle according to an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of a multi-link mechanism in an embodiment of the present invention. Figure 2 (The rotating joints have been filled in for illustration purposes).

[0025] Figure 6 This is a schematic diagram of a multi-link mechanism in an embodiment of the present invention. Figure 3 (The rotating joints have been filled in for illustration purposes).

[0026] Figure 7 Explosion of the multi-link mechanism in the embodiments of the present invention Figure 2 .

[0027] Figure 8 This is a comparative illustration of the multi-link mechanism before and after the first link rotates in an embodiment of the present invention. Figure 1 .

[0028] Figure 9 This is a schematic diagram of the motion trajectory of the end of the second connecting rod with a rotating joint in an embodiment of the present invention.

[0029] Figure 10 This is a comparative illustration of the multi-link mechanism before and after the first link rotates in an embodiment of the present invention. Figure 2 .

[0030] Figure 11 This is a schematic diagram illustrating the attitude change of the second link near the end of the first link before and after the first link rotates, according to an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures

[0032] A, B, C, D, E, F, G, H, I - Rotation joints; α - Bracket;

[0033] 1-Connecting housing, 2-Linear motion body, 3-Bearing seat, 4-First connecting rod, 41-Slide groove, 5-Second connecting rod, 6-Motion seat, 7-Input component, 8-Force transmission component, 81-Rod body, 82-Driven body, 9-Third connecting rod, 10-Fourth connecting rod, 11-Fifth connecting rod, 12-Sixth connecting rod. Detailed Implementation

[0034] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0035] The terms "first," "second," etc., used in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0036] In the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. In some cases, when expressing a fixed connection between two objects, the specific connection method may also include an integral connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0037] The terms "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," and "outer" used in this invention indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] The terms “comprising,” “including,” or any other variations thereof used in this invention are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0039] In the description of this specification, the terms "one embodiment," "some embodiments," "exemplary," "specific example," "optionally," "further," "more detailed description," "preferred," "also provided," "further included," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] It should be noted that in the description of this application, the terms "end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] This embodiment provides a vehicle with a spoiler assembly (not shown) including an electric rear wing (not shown) on the upper rear of the vehicle body, and a drive assembly for driving the electric rear wing to change its attitude. Particularly noteworthy in this embodiment is that the drive assembly includes a multi-link mechanism and a drive device, such as... Figure 1 As shown, the drive unit includes a connecting housing 1 and a linear motion body 2 connected together. The connecting housing 1 is rotatably mounted on the upper part of the vehicle (see the rotatable connection point). Figure 1 (As indicated by the arrow), the linear motion body 2 can move linearly relative to the connected housing 1 to apply force to the multi-link mechanism; such as Figure 2 and Figure 3 As shown, the multi-link mechanism includes a support 3, a first link 4, a second link 5, an auxiliary link group, and a motion seat 6. The support 3 is fixed to the upper part of the vehicle. The motion seat 6 is driven by the electric tail wing. The first link 4 is rotatably mounted on the support 3, and one end of the first link 4 is rotatably connected to the linear motion body 2, and the other end is slidably connected to the second link 5. In addition, the second link 5 is also driven by the auxiliary link group, and the auxiliary link group is also driven by the motion seat 6. The auxiliary link group includes at least one link. The motion seat 6 can be rotated under the drive of the auxiliary link group.

[0042] Based on the above design, since the first link 4 is rotatably mounted on the support 3, and the second link 5 is rotatably connected to the first link 4 and also connected to the auxiliary link group, which is also connected to the motion seat 6, which is connected to the electric tail wing, a multi-link structure formed between the first link 4, the second link 5, and the auxiliary link group can be rationally configured to allow the first link 4 to rotate under the force of the linear motion body 2, ultimately driving the electric tail wing to change its attitude. Simultaneously, since the connecting housing 1 is rotatably mounted on the vehicle body, the linear motion body 2 can move linearly relative to the connecting housing 1. The linear motion body 2 is rotatably connected to the first link 4. Therefore, while the drive device applies force to the first link 4 through the linear motion body 2, its own rotatable configuration also allows the connecting housing 1 and the linear motion body 2 to rotate adaptively, ensuring smooth rotation of the first link 4. Thus, this embodiment provides a drive assembly in which the multi-link mechanism can be connected to a linear motion drive device, thereby expanding the design diversity of driving multi-link mechanisms and expanding the design diversity of drive assemblies and vehicles.

[0043] For the aforementioned vehicles, the following are more detailed exemplary settings:

[0044] Please continue reading. Figure 1 In this embodiment, the driving device is exemplarily an electric strut (or electric push rod), the aforementioned linear motion body 2 is the strut body (or push rod body), and the connecting housing 1 is the part of the driving device located outside the strut body.

[0045] Please continue reading. Figure 1 and Figure 2 In this embodiment, an input component 7 is fixed on the first connecting rod 4. The input component 7 is a ball-head pin. On the drive device, the linear motion body 2 forms a ball-head and ball-and-socket fit connection with the input component 7 at one end (this connection method is also called a ball joint). The connecting housing 1 and a bracket α fixed on the upper part of the vehicle form a ball-head and ball-and-socket fit connection. At the same time, the connection between the linear motion body 2 and the input component 7, and the connection between the connecting housing 1 and the bracket α, are located at two opposite ends of the drive device.

[0046] Please refer to the above settings. Figure 3 and Figure 4 (exist Figure 4 The drive assembly is indicated by a dashed box (with the left and right directions of the figure representing the left and right directions of the vehicle). In this embodiment, two drive assemblies are arranged on the upper left and right sides of the rear of the vehicle body. The two drive assemblies are arranged approximately symmetrically, and the motion seats 6 of each of the two drive assemblies are respectively connected to the left and right ends of the electric rear wing. The connecting housings 1 of each drive assembly are respectively rotatably connected to two brackets α fixed on the upper rear of the vehicle body. The two brackets α are specifically fixed to the vehicle sheet metal (e.g., the trunk lid assembly). In this way, by controlling these two drive assemblies, the attitude change of the electric rear wing can be controlled.

[0047] It is understood that the correspondence between the number of drive assemblies and electric rear wings can be flexibly designed by those skilled in the art; for example, in a possible embodiment, a drive assembly of one number can be designed only between the electric rear wing and the trunk lid assembly; in this case, the drive assembly can be located on the lower middle side of the electric rear wing and connected to the electric rear wing.

[0048] It should also be noted that the aforementioned bracket α and the motion seat 6 in the drive assembly for connecting to the electric rear wing shown in the accompanying drawings are merely simplified illustrations. The specific structures of bracket α and motion seat 6 are mutually influential, and the specific structure of motion seat 6 is also affected by the specific structure of the electric rear wing, while the specific structure of bracket α is also affected by the vehicle structure near the electric rear wing. Therefore, this case does not limit or elaborate on the specific structures of bracket α and motion seat 6. For those skilled in the art, provided that the drive device is rotatably mounted on the upper part of the vehicle to ensure that the linear motion body 2 can smoothly drive the first connecting rod 4 to rotate, and given that the functions of bracket α and motion seat 6 in the vehicle have been explained above, those skilled in the art are capable of flexibly designing the specific configurations of bracket α and motion seat 6 as needed. Furthermore, in possible embodiments, the fixed setting of bracket α is not necessarily fixed to the trunk lid assembly; for example, when the electric rear wing includes a movable rear wing body part and a fixed part fixed on the upper part of the vehicle, the aforementioned motion seat 6 should be connected to the rear wing body part, and bracket α and the aforementioned support 3 can be fixed to the fixed part.

[0049] Please continue reading. Figure 3 and Figure 5 ,See Figure 3 This refers to the drive assembly located on the right side of the vehicle. Taking this drive assembly on the right side of the vehicle as an example, in this embodiment, the support 3 is an irregular shape, the first connecting rod 4 is a V-shaped body, the first connecting rod 4 is rotatably connected to the support 3 in its middle part, connected to the drive device at its left end via the input component 7, and slidably connected to the second connecting rod 5 at its right end. To achieve the aforementioned slidable connection between the first connecting rod 4 and the second connecting rod 5, as follows... Figure 6 and Figure 7 As shown, a groove 41 is provided on the first connecting rod 4, and a force transmission element 8 is provided on the second connecting rod 5. The force transmission element 8 includes a rod body 81 fixedly connected to the second connecting rod 5 and a driven body 82 connected to the rod body 81. One end of the rod body 81 is fixedly connected to the second connecting rod 5, and the other end forms a ball-and-socket fit with the driven body 82, allowing the driven body 82 to move omnidirectionally relative to the rod body 81. At the same time, the driven body 82 extends into the groove 41 and is in clearance fit with the groove 41, thereby realizing the slidable connection between the first connecting rod 4 and the second connecting rod 5. In the front-rear direction, the driven body 82 also forms a snap-fit ​​with the first connecting rod 4.

[0050] As described above, based on the ball-and-socket joint connection between the rod 81 and the driven body 82, and considering that the driven body 82 is slidably connected to the groove 41 and forms a snap-fit ​​relationship with the first connecting rod 4, when the first connecting rod 4 rotates, the groove 41 rotates with the first connecting rod 4, and the driven body 82 also moves adaptively within the groove 41 and relative to the rod 81. In this embodiment, the ball-and-socket joint connection between the driven body 82 and the rod 81 is designed based on the relationships between the links in the multi-link mechanism of this embodiment. Before describing this design in detail, the detailed structures of the other links in this embodiment, excluding the first connecting rod 4, need to be introduced as follows:

[0051] Please refer back to the previous article. Figure 2 and Figure 3 In addition to the first link 4 and the second link 5, the auxiliary link group of the multi-link mechanism also includes four links: the third link 9, the fourth link 10, the fifth link 11, and the sixth link 12. Figure 3 The attitude of the multi-link mechanism is its initial attitude. Figure 3 In the position of the drive assembly shown, the lower end of the second link 5 is provided with the aforementioned force transmission member 8. The second link 5 has a direction that first folds forward from its lower end and then extends obliquely to the upper right front. The third link 9 has a direction that extends a distance from its front end to the lower rear and then extends a distance to the upper rear. The front end of the third link 9 is rotatably connected to the upper right part of the bearing 3, and the rear side of the third link 9 is rotatably connected to the upper end of the second link 5. The rear side of the connection between the third link 9 and the second link 5 is rotatably connected to the fourth link 10. The rear side of the connection between the third link 9 and the fourth link 10 (also its rear end) is rotatably connected to the sixth link 12.

[0052] As described above, the fourth link 10 extends downward and rearward from its front end. The fourth link 10 is rotatably connected to the front end of the motion seat 6 at its front end, rotatably connected to the third link 9 in its middle part as previously described, and rotatably connected to the rear end of the fifth link 11 at its rear end. The fifth link 11 extends substantially in the front-rear direction, and its front end is rotatably connected to the lower right part of the bearing 3. The sixth link 12 extends downward and rearward from its front end, and its front end is rotatably connected to the rear end of the motion seat 6. Its rear end is rotatably connected to the rear end of the third link 9 as previously described.

[0053] Furthermore, the drive assembly also includes nine rotary joints: rotary joint A, rotary joint B, rotary joint C, rotary joint D, rotary joint E, rotary joint F, rotary joint G, rotary joint H, and rotary joint I. These nine rotary joints are used to establish the aforementioned rotatable connection (or hinge) relationship between the links in the multi-link mechanism to realize the transmission between the links.

[0054] Please continue reading. Figure 3 and Figure 2 (For illustrative purposes) Figure 2 (The dotted lines indicate the correspondence between each rotating joint and its assembly point.) In this embodiment, rotating joint A is fixed to the bearing 3 and rotatably connected to the first connecting rod 4; rotating joint B is fixed to the third connecting rod 9 and rotatably connected to the second connecting rod 5; rotating joint C is fixed to the bearing 3 and rotatably connected to the third connecting rod 9; rotating joint D is fixed to the fourth connecting rod 10 and rotatably connected to the third connecting rod 9; rotating joint E is fixed to the sixth connecting rod 12 and rotatably connected to the third connecting rod 9; rotating joint F is rotatably connected to the bearing 3 and fixedly connected to the fifth connecting rod 11; rotating joint G is rotatably connected to the fourth connecting rod 10 and fixedly connected to the fifth connecting rod 11; rotating joint H is rotatably connected to the fourth connecting rod 10 and fixedly connected to the motion seat 6; rotating joint I is rotatably connected to the sixth connecting rod 12 and fixedly connected to the motion seat 6.

[0055] As can be seen from the above, when the first link 4 is subjected to a thrust, such as when the drive device pushes the input component 7 from left to right, as... Figure 8 As shown, the first link 4 rotates around the rotational joint A, which in turn drives the second link 5 to push the third link 9 to rotate around the rotational joint C. This causes the fourth link 10 to rotate under the constraint of the fifth link 11, and the sixth link 12 to rotate, ultimately causing the motion seat 6 to move up and down and flip. Simultaneously, during the rotation of the first link 4, the drive device also rotates adaptively due to its rotatable design to ensure the linear motion body 2 ( Figure 8 (Not shown) It can smoothly drive the first link 4.

[0056] Please continue reading. Figure 8 and Figure 9 It is understandable that during the rotation of the aforementioned links, the end of the second link 5, which is equipped with the rotary joint B, has a motion path that is similar to... Figure 9 The midpoint of the circled outline partially overlaps. Based on this, and combined with the aforementioned "the second link 5 has a direction that first folds forward from its lower end and then extends obliquely to the upper right front," it can be concluded that, as Figure 10 and Figure 11 As shown, during the upward rotation of the third link 9 around the rotational joint C under the push of the second link 5, the end of the second link 5 with the driven body 82 will naturally deflect relative to the first link 4 (please refer to...). Figure 11 (The changes indicated by the two dashed arrows). It should be noted that, to highlight the attitude changes of each link in the multi-link mechanism before and after the rotation of the first link 4, this paper specifically... Figure 10The centers of the rotation joints C of the two multi-link mechanisms (representing the rotation before and after) are connected by a dashed line to indicate that the two rotation joints C are at the same height for easy comparison.

[0057] Please refer back to the reference section. Figure 7 Regarding the description in this embodiment that "the ball-and-socket joint between the driven body 82 and the rod 81 is designed based on the relationship between the links in the multi-link mechanism of this embodiment," a more detailed explanation is as follows: The ball-and-socket joint design between the driven body 82 and the rod 81 is primarily to ensure that when the second link 5 deflects relative to the first link 4, the driven body 82 can also deflect relative to the rod 81, thereby preventing jamming between the first link 4 and the second link 5. This ensures that the rotation of the first link 4 is converted into the sliding of the force transmission member 8 relative to the first link 4, and the sliding of the force transmission member 8 is converted into the rotation of the second link 5. In other words, this design ensures the smooth transmission of force.

[0058] As mentioned above, the reason why the second link 5 deflects relative to the first link 4 during the attitude change of the multi-link mechanism is largely determined by its own shape and the shape of the third link 9. Since the shape of each link in the multi-link mechanism is largely determined by the expected stroke of the electric tail wing that the drive assembly needs to drive, it is understandable that, in possible embodiments, depending on the specific structure of the multi-link mechanism, the link 81 and the driven body 82 do not necessarily have to be set as a ball-and-socket type fit structure, or necessarily as a structure that can move relative to each other.

[0059] Furthermore, the ball-and-socket joint connection between the driven body 82 and the rod 81 (i.e., the driven body 82 can move omnidirectionally relative to the rod 81) can also prevent jamming between the first link 4 and the second link 5 due to production and / or assembly errors in the multi-link mechanism. Specifically, since the driven body 82 can move relative to the rod 81, if there is a disruption in force transmission between the first link 4 and the second link 5 due to production and / or assembly errors, it is understandable that the relative movement between the driven body 82 and the rod 81 can offset the corresponding jamming force (or stress), thereby ensuring smooth force transmission between the first link 4 and the second link 5. It is also understood that those skilled in the art may set the driven body 82 to move relative to the rod 81 solely to prevent "jamming between the first link 4 and the second link 5 due to production and / or assembly errors in the multi-link mechanism."

[0060] It is understandable that, in possible embodiments, the relationship between the second link 5, the rod body 81, and the driven body 82 can also be as follows: the rod body 81 and the driven body 82 are fixedly connected; the driven body 82 extends into the slide groove 41 and is slidably connected to the slide groove 41; the rod body 81 and the second link 5 are not fixedly connected, but rather the connection between the rod body 81 and the second link 5 forms a ball-and-socket fit, allowing the force transmission member 8 to move relative to the second link 5. In this way, the aforementioned effect of ensuring smooth force transmission between the first link 4 and the second link 5 can also be achieved.

[0061] Please refer back to the previous article. Figure 3 As shown in the figure, the right end of the first connecting rod 4 is above the bearing 3. In a possible embodiment, a buffer (e.g., a rubber pad, not shown) can be provided between the first connecting rod 4 and the bearing 3, and the buffer can be fixed to the bearing 3 to reduce the possible collision between the first connecting rod 4 and the bearing 3.

[0062] In summary, the present invention provides a drive assembly that is not limited to driving the electric rear wing to flip, but can expand the design diversity of driving multi-link mechanisms. For example, when the spoiler assembly includes a front spoiler of a vehicle, a drive assembly can be correspondingly set with the front spoiler; in this case, the drive assembly is used to drive the front spoiler to change its attitude. As another example, the drive assembly provided in this embodiment can be used to drive any object that needs to flip to change its attitude. Based on this, the vehicle part rotatably connected to the connecting housing 1 in the present invention can actually be regarded as a first object, and the electric rear wing connected to the motion seat 6 can actually be regarded as a second object; therefore, the design principle of the drive assembly is as follows:

[0063] The drive assembly includes a multi-link mechanism and a drive device; the drive device includes a connected housing 1 and a linear motion body 2 connected together, the housing 1 being rotatably connected to a first object, and the linear motion body 2 being able to move relative to the housing 1 to apply force to the multi-link mechanism;

[0064] The multi-link mechanism includes a support 3, a first link 4, a second link 5, an auxiliary link group, and a motion seat 6. The support 3 is a fixed part, the motion seat 6 is used for fixed connection with a second object, the first link 4 is rotatably mounted on the support 3, and one end of the first link 4 is rotatably connected to the linear motion body 2, and the other end is slidably connected to the second link 5. The second link 5 is driven by the auxiliary link group, and the auxiliary link group is driven by the motion seat 6.

[0065] It is understood that, since the drive assembly has multiple applications, the number of links in the auxiliary linkage group in this invention can be flexibly determined by those skilled in the art based on the application of the drive assembly (e.g., the expected travel distance of the electric tail wing / front spoiler when used to drive the electric tail wing / front spoiler). In a possible embodiment, the auxiliary linkage group may include only the third link 9; for example, if it meets the expected travel distance of the electric tail wing, then in Figure 3 Based on the structure shown, the fourth link 10, the fifth link 11 and the sixth link 12 can be eliminated, and the end of the third link 9 away from the rotary joint C can be connected to the motion seat 6 via the rotary joint E.

[0066] In summary, by designing the first link 4, the second link 5, and the auxiliary link group, and correspondingly setting a drive device including the linear motion body 2, the multi-link mechanism in the drive assembly provided by the present invention can be driven by the linear motion drive device, thereby expanding the design diversity of the drive assembly and the vehicle.

[0067] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A drive assembly characterized by, The application relates to a driving device for a vehicle, which comprises a multi-link mechanism and a driving device; the driving device comprises a connecting shell (1) and a linear motion body (2) connected with each other, the connecting shell (1) is arranged on the upper part of the vehicle in a rotatable mode, and the linear motion body (2) can linearly move relative to the connecting shell (1) to apply force to the multi-link mechanism. The multi-link mechanism comprises a bearing (3), a first link (4), a second link (5), an auxiliary link group and a motion seat (6); the bearing (3) is arranged on the upper part of the vehicle in a fixed mode, the motion seat (6) is in transmission connection with a spoiler assembly arranged on the upper part of the vehicle, the first link (4) is a V-shaped body, the first link (4) is rotatably connected with the bearing (3) at the middle part, one end of the side of the middle part is connected with the linear motion body (2), the other end of the side of the middle part is slidably connected with the second link (5); the second link (5) is in transmission connection with the auxiliary link group, the auxiliary link group is in transmission connection with the motion seat (6); the auxiliary link group comprises at least one link; the motion seat (6) can be turned over under the driving of the auxiliary link group.

2. The drive assembly of claim 1, wherein, An input member (7) is arranged on the first link (4), one end of the linear motion body (2) is in ball-and-socket type connection with the input member (7); the connecting shell (1) is in ball-and-socket type connection with the upper part of the vehicle; the connection position of the linear motion body (2) and the input member (7) and the connection position of the connecting shell (1) and the upper part of the vehicle are respectively located on the two opposite ends of the driving device.

3. The drive assembly of claim 1, wherein, A sliding groove (41) is arranged on the first link (4), and a force transmission member (8) is arranged on the second link (5); the force transmission member (8) comprises a rod body (81) fixedly connected with the second link (5) and a driven body (82) connected with the rod body (81); the driven body (82) extends into the sliding groove (41) and is slidably connected with the sliding groove (41) and can adaptively move in the sliding groove (41) along with the rotation of the first link (4); the connection position of the rod body (81) and the driven body (82) is in ball-and-socket type connection, so that the driven body (82) can move relative to the rod body (81).

4. The drive assembly of claim 1, wherein, A sliding groove (41) is arranged on the first link (4), and a force transmission member (8) is arranged on the second link (5); the force transmission member (8) comprises a rod body (81) connected with the second link (5) and a driven body (82) fixedly connected with the rod body (81); the driven body (82) extends into the sliding groove (41) and is slidably connected with the sliding groove (41) and can adaptively move in the sliding groove (41) along with the rotation of the first link (4); the connection position of the rod body (81) and the second link (5) is in ball-and-socket type connection, so that the force transmission member (8) can move relative to the second link (5).

5. The drive assembly of claim 1, wherein, The first connecting rod (4) and the second connecting rod (5) are slidably connected; the auxiliary connecting rod set comprises one connecting rod, one end of which is rotatably connected with the bearing (3) and the opposite end of the one end is rotatably connected with the moving seat (6); between the two end portions of the connecting rod, the second connecting rod (5) is rotatably connected with the connecting rod.

6. The drive assembly of claim 1, wherein, The auxiliary connecting rod set comprises a third connecting rod (9), a fourth connecting rod (10), a fifth connecting rod (11) and a sixth connecting rod (12); the first connecting rod (4) and the second connecting rod (5) are slidably connected, one end of the third connecting rod (9) is rotatably connected with the bearing (3) and the opposite end of the one end is rotatably connected with the sixth connecting rod (12); Between one end of the third connecting rod (9) and the opposite end of the one end, the second connecting rod (5) is rotatably connected with the third connecting rod (9), and the fourth connecting rod (10) is rotatably connected with the third connecting rod (9); on the fourth connecting rod (10), the fourth connecting rod (10) is rotatably connected with the moving seat (6) at one end thereof, rotatably connected with the fifth connecting rod (11) at the opposite end of the one end, and rotatably connected with the third connecting rod (9) between the two end portions thereof; the fifth connecting rod (11) is rotatably connected with the bearing (3) at one end thereof, and the one end of the fifth connecting rod (11) is the end portion away from the connecting end of the fifth connecting rod (11) and the fourth connecting rod (10); on the end portion of the sixth connecting rod (12) away from the connecting position of the sixth connecting rod (12) and the third connecting rod (9), the sixth connecting rod (12) is rotatably connected with the moving seat (6).

7. A vehicle characterized by comprising: The driving assembly comprises the driving assembly according to any one of claims 1-6.

8. The vehicle of claim 7, wherein, The driving assembly further comprises a spoiler assembly arranged on the upper portion of the vehicle, the moving seat (6) is drivingly connected with the spoiler assembly; one end of the driving device is rotatably connected with the multi-connecting rod mechanism, and the other end of the driving device away from the multi-connecting rod mechanism is rotatably arranged on the upper portion of the vehicle.

9. A drive assembly characterized by, The driving device comprises a connecting housing (1) and a linear motion body (2) connected with each other, the connecting housing (1) is used for rotatably connecting a first object, and the linear motion body (2) can move relative to the connecting housing (1) to apply force to the multi-connecting rod mechanism; The multi-connecting rod mechanism comprises a bearing (3), a first connecting rod (4), a second connecting rod (5), an auxiliary connecting rod set and a moving seat (6); the bearing (3) is a fixedly arranged position, the moving seat (6) is used for drivingly connecting a second object, the first connecting rod (4) is a V-shaped body, the first connecting rod (4) is rotatably connected with the bearing (3) at the middle portion thereof, rotatably connected with the linear motion body (2) at one end of the side edge of the middle portion, and slidably connected with the second connecting rod (5) at the other end of the side edge of the middle portion; the second connecting rod (5) is drivingly connected with the auxiliary connecting rod set, the auxiliary connecting rod set is drivingly connected with the moving seat (6); the auxiliary connecting rod set comprises at least one connecting rod; the moving seat (6) can be turned over under the driving of the auxiliary connecting rod set.

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