Sliding door driving device and sliding door device for automobile

Abstract

The utility model provides a sliding door driving device for an automobile. The sliding door driving device comprises a middle guide rail; the roller bracket unit is arranged to be capable of sliding along the middle guide rail; the driving assembly comprises a first driving connecting part and a second driving connecting part; the roller support unit is arranged on the middle guide rail, the connecting plate is arranged on the roller support unit, at least part of the connecting plate is located above the middle guide rail, and a first driving connecting part and a second driving connecting part of the driving assembly are both connected to the part, located above the middle guide rail, of the connecting plate. The driving assembly drives the roller support unit to slide in the middle guide rail through the connecting plate. The utility model further provides a sliding door device.

Description

Technical Field

[0001] The present invention relates to a sliding door driving device and a sliding door device for an automobile, belonging to the technical field of automobile doors. Background Art

[0002] The six-seat and seven-seat vehicles in the prior art are generally MPVs or medium-to-large SUVs, which include C-pillars and D-pillars and are relatively long. At the same time, in order to facilitate rear passengers to enter and exit the vehicle, these vehicles generally use sliding doors to open or close the passenger compartment.

[0003] Meanwhile, in order to improve the appearance of the vehicle, there is a sliding door with a hidden middle guide in the prior art, which forms a small groove structure in the vertical direction below the window glass of the vehicle. However, the size of the groove structure in the prior art is still large, which affects the appearance of the vehicle.

[0004] In addition, the fixed pulley arrangement position of the sliding door device in the prior art also affects the space inside the vehicle. In particular, the C-pillar of the MPV model is exactly where the second row of seats are placed, which affects the riding space of the second row of seats and reduces the comfort of passengers. Utility Model Content

[0005] In order to solve one of the above technical problems, the present disclosure provides a sliding door driving device and a sliding door device for an automobile.

[0006] According to one aspect of the present disclosure, there is provided a sliding door driving device for an automobile, comprising:

[0007] Middle guide rail;

[0008] A roller support unit, wherein the roller support unit is configured to be able to slide along the middle guide rail;

[0009] a drive assembly comprising a first drive connection and a second drive connection; and

[0010] A connecting plate, wherein the connecting plate is arranged on the roller bracket unit, and at least a portion of the connecting plate is located above the middle guide rail, the first driving connection part and the second driving connection part of the driving component are both connected to the portion of the connecting plate located above the middle guide rail, wherein the driving component drives the roller bracket unit to slide in the middle guide rail via the connecting plate.

[0011] According to at least one embodiment of the present disclosure, the sliding door driving device for an automobile further includes:

[0012] A front pulley, wherein the first driving connection portion bypasses the front pulley and is connected to the connection plate.

[0013] According to the sliding door driving device for an automobile of at least one embodiment of the present disclosure, the front pulley is disposed at the rear side of the C-pillar of the automobile.

[0014] According to the automotive sliding door driving device of at least one embodiment of the present disclosure, at least a portion of the front pulley is located above the middle guide rail.

[0015] According to at least one embodiment of the sliding door driving device for an automobile of the present disclosure, the driving cable guided by the front pulley is located above the middle guide rail.

[0016] According to at least one embodiment of the present disclosure, the sliding door driving device for an automobile further includes:

[0017] A rear pulley, wherein the second driving connection portion bypasses the rear pulley and is connected to the connection plate.

[0018] According to the automotive sliding door driving device of at least one embodiment of the present disclosure, the rear pulley is disposed near a D-pillar of the vehicle.

[0019] According to the automotive sliding door driving device of at least one embodiment of the present disclosure, at least a portion of the rear pulley is located above the middle guide rail.

[0020] According to at least one embodiment of the sliding door driving device for an automobile of the present disclosure, the driving cable guided by the rear pulley is located above the middle guide rail.

[0021] According to at least one embodiment of the present disclosure, in the automotive sliding door driving device, the driving assembly includes a driving cable, and the first driving connection portion and the second driving connection portion are formed as two end portions of the driving cable.

[0022] According to at least one embodiment of the sliding door driving device for an automobile of the present disclosure, the driving assembly includes a driving unit, and the driving unit is used to drive the driving cable to move.

[0023] According to at least one embodiment of the present disclosure, the sliding door driving device for an automobile further includes:

[0024] An auxiliary rail, at least a portion of which is located above the middle rail, wherein at least a portion of a drive cable of the drive assembly is capable of slidingly contacting the auxiliary rail.

[0025] According to the automotive sliding door driving device of at least one embodiment of the present disclosure, the middle rail includes a curved portion, and the auxiliary rail is disposed near the curved portion.

[0026] According to the automotive sliding door driving device of at least one embodiment of the present disclosure, the curved portions of the auxiliary rail and the middle rail have substantially the same curvature.

[0027] According to the automotive sliding door driving device of at least one embodiment of the present disclosure, there is a gap between the connecting plate and the middle guide rail.

[0028] According to at least one embodiment of the sliding door drive device for an automobile of the present disclosure, the connecting plate includes a first connecting plate portion, a second connecting plate portion and a third connecting plate portion; wherein the first connecting plate portion is arranged approximately vertically, the second connecting plate portion is connected to the first connecting plate portion and is fixed to a roller bracket unit; the third connecting plate portion is connected to the first connecting plate portion and is at least partially located above the middle guide rail.

[0029] According to at least one embodiment of the sliding door drive device for an automobile of the present disclosure, the third part of the connecting plate includes an upper arm and a lower arm, the lower arm is connected to the upper end of the first part of the connecting plate, and the third part of the connecting plate is located as a whole above the middle guide rail; the first drive connecting part and the second drive connecting part are both connected to the upper arm and / or the lower arm.

[0030] According to at least one embodiment of the sliding door drive device for a vehicle disclosed herein, the upper arm portion of the third part of the connecting plate is located above the lower arm portion, and two upper mounting holes are provided on the upper arm portion, and two lower mounting holes are provided on the lower arm portion, and the upper mounting holes and the lower mounting holes are correspondingly arranged in the height direction, and an opening is formed on each upper mounting hole, and the size of the opening is larger than the size of the drive cable and smaller than the size of the first drive connection portion or the second drive connection portion, the upper end of the first drive connection portion is located in one of the upper mounting holes, the lower end is located in one of the lower mounting holes, and the drive cable connected to the first drive connection portion is located between the upper arm portion and the lower arm portion; the upper end of the second drive connection portion is located in another of the upper mounting holes, the lower end is located in another of the lower mounting holes, and the drive cable connected to the second drive connection portion is located between the upper arm portion and the lower arm portion.

[0031] According to another aspect of the present disclosure, a sliding door device is provided, which includes the above-mentioned sliding door driving device for an automobile. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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.

[0033] Figure 1 1 is a schematic structural diagram of a sliding door driving device for an automobile according to an embodiment of the present disclosure.

[0034] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A.

[0035] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of part B.

[0036] Figure 4 It is a schematic structural diagram of a connecting plate according to an embodiment of the present disclosure.

[0037] Figure 5 and Figure 6 It is a schematic diagram of the use state of the sliding door driving device for an automobile according to one embodiment of the present disclosure.

[0038] Figure 7 It is a schematic structural diagram of an auxiliary guide rail according to an embodiment of the present disclosure.

[0039] The specific reference numerals in the figure are:

[0040] 100 Sliding door drive device for automobile

[0041] 110 middle rail

[0042] 111 Part 1

[0043] 112 Part 2

[0044] 120 Roller Bracket Unit

[0045] 121 Bracket Department

[0046] 130 drive components

[0047] 131 driver unit

[0048] 132 drive cable

[0049] 133 first drive connection portion

[0050] 134 second drive connection portion

[0051] 140 connection plate

[0052] 141 Connecting Plate Part 1

[0053] 142 Connecting Plate Part 2

[0054] 143 Connecting plate part 3

[0055] 143A Upper arm

[0056] 143B Lower arm

[0057] 150 front pulley

[0058] 160 rear pulley

[0059] 170 auxiliary rails. DETAILED DESCRIPTION

[0060] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0061] 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.

[0062] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present disclosure.

[0063] 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 specified, 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 described order. In addition, the same figure numbers represent the same components.

[0064] When a component is referred to as being "on" or "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. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0065] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "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 accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" 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 the spatially relative descriptors used herein should be interpreted accordingly.

[0066] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, 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, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, 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.

[0067] Figure 1 1 is a schematic structural diagram of a sliding door driving device 100 for an automobile according to an embodiment of the present disclosure. Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A. Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of part B.

[0068] like Figures 1 to 3 As shown, the vehicle sliding door driving device 100 of the present disclosure may include components such as a middle guide rail 110 , a roller bracket unit 120 , a driving assembly 130 , and a connecting plate 140 .

[0069] When the sliding door driving device 100 for a vehicle disclosed in the present invention is in use, the middle guide rail 110 can be fixed to the body of the vehicle. Specifically, the body includes a C-pillar and a D-pillar. Accordingly, in terms of the length direction of the middle guide rail 110, the middle guide rail 110 has a first portion 111 and a second portion 112, wherein the first portion 111 may be a curved portion, and the second portion 112 may be a straight portion; or in other words, the first portion 111 is a curve with a larger curvature, and the second portion 112 is a curve (or straight portion) with a smaller curvature. Specifically, one end of the first portion 111 is a free end, the other end of the first portion 111 is connected to one end of the second portion 112, and the other end of the second portion 112 is a free end, and one end (free end) of the first portion 111 is disposed close to the C-pillar of the vehicle body, and the other end (free end) of the second portion 112 is disposed close to the D-pillar of the vehicle body.

[0070] The roller bracket unit 120 of the present disclosure is configured to be able to slide along the middle rail 110; that is, the roller bracket unit 120 can slide from one end of the middle rail 110 to the other end of the middle rail 110. Specifically, when the sliding door driving device for a vehicle of the present disclosure is in use, a door of the vehicle can be directly or indirectly fixed to the roller bracket unit 120, so that the door can be driven and moved by the roller bracket unit 120, so that the door can close or open the passenger compartment.

[0071] Figure 4 It is a schematic structural diagram of a connecting plate according to an embodiment of the present disclosure. Figure 5 and Figure 6 It is a schematic diagram of the use state of the sliding door driving device for an automobile according to one embodiment of the present disclosure.

[0072] like Figures 4 to 6 As shown, in the present disclosure, the driving assembly 130 is used to drive the roller bracket unit 120 to slide along the middle guide rail 110 . Specifically, the driving assembly 130 drives the roller bracket unit 120 to move through the connecting plate 140 .

[0073] In a specific embodiment, the driving assembly 130 may include components such as a driving unit 131 , a driving cable 132 , a first driving connection portion 133 , and a second driving connection portion 134 .

[0074] The driving unit 131 may be a turntable driven by a motor, and the driving cable 132 may be wound around the turntable, so that when the motor drives the turntable to rotate, one end of the driving cable 132 is retracted and the other end is released accordingly.

[0075] More specifically, a first drive connection portion 133 is provided at one end of the drive cable 132, and a second drive connection portion 134 is provided at the other end of the drive cable 132. The first drive connection portion 133 and the second drive connection portion 134 may be plugs fixed to both ends of the drive cable 132. In other words, the first drive connection portion 133 and the second drive connection portion 134 may be formed as two ends of the drive cable 132.

[0076] The connecting plate 140 is arranged on the roller bracket unit 120, and at least a portion of the connecting plate 140 is located above the middle guide rail 110, and the first driving connection part 133 and the second driving connection part 134 of the driving assembly 130 are both connected to the portion of the connecting plate 140 located above the middle guide rail 110.

[0077] At this time, in one case, when the motor rotates along the first direction, a pulling force is applied to the second drive connection part 134, and accordingly, the second drive connection part 134 can drive the connecting plate 140 from a position close to one end of the middle guide rail 110 to a position close to the other end of the middle guide rail 110, and the door is opened; in the opposite working process, when the motor rotates along the second direction, a pulling force is applied to the first drive connection part 133, and accordingly, the first drive connection part 133 can drive the connecting plate 140 from a position close to the other end of the middle guide rail 110 to a position close to one end of the middle guide rail 110, and the door is closed.

[0078] At the same time, the driving assembly 130 may also include a tensioning device, which can tension the driving cable so that the vehicle door will not have any free movement margin.

[0079] like Figure 4 As shown, in the present disclosure, the connecting plate 140 may include a first connecting plate portion 141, a second connecting plate portion 142 and a third connecting plate portion 143; wherein the first connecting plate portion 141 is arranged approximately vertically, and, along the length direction of the middle guide rail 110, the first connecting plate portion 141 and the bracket portion 121 are staggered, so that the terminal position of the bracket portion 121 can be adjusted so that the vehicle door meets the position requirements of the door opening and closing operations.

[0080] The lower end of the first connecting plate portion 141 is connected to one end of the second connecting plate portion 142, and the second connecting plate portion 142 is horizontal or substantially horizontal. In a preferred embodiment, the second connecting plate portion 142 and the bracket portion 121 of the roller bracket unit 120 have an overlapping area, so that the second connecting plate portion 142 and the bracket portion 121 can be fixedly connected by fastening means such as anchors or screws, so that the connecting plate 140 and the roller bracket unit 120 are fixedly connected and move synchronously.

[0081] In a preferred embodiment, the first connecting plate portion 141 and the second connecting plate portion 142 may be connected with a rounded corner. In the present disclosure, the first connecting plate portion 141 is spaced apart from the middle guide rail 110 in the horizontal direction, so that the connecting plate 140 will not collide or rub against the middle guide rail 110 during movement.

[0082] The third connecting plate portion 143 is U-shaped and includes an upper arm portion 143A and a lower arm portion 143B, wherein the lower arm portion 143B is connected to the upper end of the first connecting plate portion 141. Preferably, the third connecting plate portion 143 can be connected to the first connecting plate portion 141 through a rounded corner portion, thereby the third connecting plate portion 143 of the present disclosure can be located above the middle guide rail 110 as a whole. In other words, along the height direction, there is a preset gap between the lower surface of the lower arm portion 143B of the third connecting plate portion 143 and the upper surface of the middle guide rail 110, so that the connecting plate 140 will not collide or rub against the middle guide rail 110.

[0083] Moreover, the upper arm portion 143A of the third part 143 of the connecting plate is located above the lower arm portion 143B, and two upper mounting holes are provided on the upper arm portion 143A, and two lower mounting holes are provided on the lower arm portion 143B. The upper mounting holes and the lower mounting holes are arranged correspondingly in the height direction, and an opening is formed on each upper mounting hole, and the size of the opening (that is, the width of the opening in the circumferential direction) is larger than the size of the drive cable 132 and smaller than the size of the first drive connection portion 133 or the second drive connection portion 134, thereby, the upper end of the first drive connection portion 133 is located in one of the upper mounting holes, and the lower end is located in one of the lower mounting holes, and the drive cable 132 is located between the upper arm portion 143A and the lower arm portion 143B. Similarly, the upper end of the second drive connection part 134 is located in another upper mounting hole, the lower end is located in another lower mounting hole, and the drive cable 132 is located between the upper arm 143A and the lower arm 143B, thereby achieving a fixed connection between the drive cable 132 and the connecting plate 140.

[0084] The positions of the various components will be described in detail below in conjunction with the accompanying drawings.

[0085] Specifically, Figure 5 and Figure 6 As shown, in the present disclosure, the automobile sliding door driving device 100 may further include components such as a front pulley 150 and a rear pulley 160. The first driving connection portion 133 bypasses the front pulley 150 and is connected to the connecting plate 140, thereby changing the transmission direction of one end of the driving cable 132 through the front pulley 150. Correspondingly, the second driving connection portion 134 bypasses the rear pulley 160 and is connected to the connecting plate 140, thereby changing the transmission direction of the other end of the driving pull rod 132 through the rear pulley 160.

[0086] In the present disclosure, the front of the car is taken as the front, and the front pulley 150 is located in front of the rear pulley 160. Specifically, the front pulley 150 is arranged near the C-pillar of the car, preferably at the rear side of the C-pillar of the car. Therefore, compared with the prior art in which the front pulley 150 is located on the C-pillar of the car, the automobile sliding door driving device 100 of the present disclosure occupies less space in the car and has a high riding comfort.

[0087] In addition, the rear pulley 160 is arranged near the D-pillar of the car, and the drive unit 131 can be arranged in the interior panel between the C-pillar and the D-pillar, so that the rear pulley 160 and the drive unit 131 will not occupy the interior space of the car.

[0088] In the present disclosure, at least a portion of the front pulley 150 is located above the middle guide rail 110, whereby the drive cable 132 guided by the front pulley 150 is located above the middle guide rail 110; at least a portion of the rear pulley 160 is located above the middle guide rail 110, whereby the drive cable 132 guided by the rear pulley 160 is located above the middle guide rail 110.

[0089] In the present disclosure, the drive cable 132 guided by the front pulley 150 and the drive cable 132 guided by the rear pulley 150 can be located on the same horizontal plane, so that the drive cable 132 only has the force to pull the connecting plate 140, so that the drive assembly 130 has a higher driving efficiency.

[0090] Figure 7 is a schematic structural diagram of an auxiliary guide rail 170 according to an embodiment of the present disclosure.

[0091] like Figure 7 As shown, in the present disclosure, the sliding door drive device 100 for an automobile further includes: an auxiliary guide rail 170, at least a portion of which is located above the middle guide rail 110, wherein at least a portion of the drive cable 132 of the drive assembly 130 is capable of sliding contact with the auxiliary guide rail 170, thereby allowing the drive cable 132 to have a stable transmission path.

[0092] Specifically, the auxiliary guide rail 170 of the present invention is curved and has approximately the same curvature as the first portion 111, and the auxiliary guide rail 170 is disposed near the first portion 111. When the connecting plate 140 is located at one end of the middle guide rail 110, the driving cable 132 near the second driving connection portion 132 will contact the auxiliary guide rail 170 and be guided by the auxiliary guide rail 170, thereby making it easier for the second driving connection portion 132 to pull the connecting plate 140 to move.

[0093] On the other hand, when the connecting plate 140 leaves one end of the middle guide rail 110 and moves to a position close to the other end of the middle guide rail 110 , the driving cable 132 near the first driving connection part 133 will be guided by the auxiliary guide rail 170 and slide along the surface of the auxiliary guide rail 170 .

[0094] In a specific embodiment, the auxiliary guide rail 170 is U-shaped, and at least a portion of the connecting plate third portion 143 of the connecting plate 140 can be located in the space formed by the auxiliary guide rail 170. Accordingly, at least a portion of the driving cable 132 is also located in the space formed by the auxiliary guide rail 170.

[0095] In the automobile sliding door driving device disclosed in the present invention, since the front pulley 150, the rear pulley 160 and the driving cable 132 between the front pulley 150 and the rear pulley 160 are all located above the middle guide rail 110, there is no need to set a component for fixing the driving cable 132 on the roller bracket unit 120. Based on this, there is no avoidance structure for the component for fixing the driving cable 132 of the roller bracket unit 120 on the body of the automobile. Therefore, the automobile sliding door driving device disclosed in the present invention can be set as a hidden middle guide rail solution.

[0096] On the other hand, due to the existence of the connecting plate 140, and the front pulley 150, the rear pulley 160 and the driving cable 132 between the front pulley 150 and the rear pulley 160 are all located above the middle guide rail 110, that is, the sliding door driving device for an automobile disclosed in the present invention has a plurality of components arranged above the middle guide rail 110, and these components can be shielded by the side glass trim. At the same time, the side glass trim can also shield at least part of the middle guide rail, so that the side appearance of the vehicle body can be made into a hidden middle guide rail solution.

[0097] 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" etc. 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 representations 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 any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.

[0098] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0099] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A sliding door driving device for an automobile, characterized in that: include: Middle guide rail; A roller support unit, wherein the roller support unit is configured to be able to slide along the middle guide rail; a drive assembly, the drive assembly comprising a first drive connection and a second drive connection; as well as A connecting plate, wherein the connecting plate is arranged on the roller bracket unit, and at least a portion of the connecting plate is located above the middle guide rail, the first driving connection part and the second driving connection part of the driving component are both connected to the portion of the connecting plate located above the middle guide rail, wherein the driving component drives the roller bracket unit to slide in the middle guide rail via the connecting plate.

2. The automotive sliding door drive device according to claim 1, characterized in that: Also includes: A front pulley, wherein the first driving connection portion bypasses the front pulley and is connected to the connection plate.

3. The automotive sliding door driving device according to claim 2, characterized in that: The front pulley is arranged on the rear side of the C-pillar of the automobile.

4. The automotive sliding door driving device according to claim 2, characterized in that: At least a portion of the front pulley is located above the middle guide rail.

5. The automotive sliding door driving device according to claim 2, characterized in that: The driving cable guided by the front pulley is located above the middle guide rail.

6. The automotive sliding door driving device according to claim 1, characterized in that: Also includes: A rear pulley, wherein the second driving connection portion bypasses the rear pulley and is connected to the connection plate.

7. The automotive sliding door driving device according to claim 6, characterized in that: The rear pulley is arranged near the D-pillar of the automobile.

8. The automotive sliding door driving device according to claim 6, characterized in that: At least a portion of the rear pulley is located above the middle guide rail.

9. The automotive sliding door driving device according to claim 6, characterized in that: The driving cable guided by the rear pulley is located above the middle guide rail.

10. The automotive sliding door driving device according to claim 1, characterized in that: The drive assembly comprises a drive cable, the first drive connection portion and the second drive connection portion forming two ends of the drive cable.

11. The vehicle sliding door driving device according to claim 10, characterized in that: The driving assembly comprises a driving unit, and the driving unit is used to drive the driving cable to move.

12. The vehicle sliding door driving device according to claim 1, characterized in that: Also includes: An auxiliary rail, at least a portion of which is located above the middle rail, wherein at least a portion of a drive cable of the drive assembly is capable of slidingly contacting the auxiliary rail.

13. The automotive sliding door driving device according to claim 12, characterized in that: The middle guide rail includes a curved portion, and the auxiliary guide rail is arranged near the curved portion.

14. The automotive sliding door driving device according to claim 13, characterized in that: The auxiliary guide rail and the curved portion of the middle guide rail have substantially the same curvature.

15. The sliding door driving device for an automobile according to claim 1, characterized in that: There is a gap between the connecting plate and the middle guide rail.

16. The automotive sliding door driving device according to claim 15, characterized in that: The connecting plate includes a first connecting plate part, a second connecting plate part and a third connecting plate part; wherein the first connecting plate part is arranged approximately vertically, the second connecting plate part is connected to the first connecting plate part and is fixed to the roller bracket unit; the third connecting plate part is connected to the first connecting plate part and is at least partially located above the middle guide rail.

17. The vehicle sliding door driving device according to claim 16, characterized in that: The third part of the connecting plate includes an upper arm and a lower arm, the lower arm is connected to the upper end of the first part of the connecting plate, and the third part of the connecting plate is located as a whole above the middle guide rail; the first drive connecting part and the second drive connecting part are both connected to the upper arm and / or the lower arm.

18. The automotive sliding door driving device according to claim 17, characterized in that: The upper arm portion of the third part of the connecting plate is located above the lower arm portion, and two upper mounting holes are provided on the upper arm portion, and two lower mounting holes are provided on the lower arm portion, and the upper mounting holes and the lower mounting holes are correspondingly arranged in the height direction, and an opening is formed on each upper mounting hole, and the size of the opening is larger than the size of the driving cable and smaller than the size of the first driving connection portion or the second driving connection portion, the upper end of the first driving connection portion is located in one of the upper mounting holes, the lower end is located in one of the lower mounting holes, and the driving cable connected to the first driving connection portion is located between the upper arm portion and the lower arm portion; the upper end of the second driving connection portion is located in another of the upper mounting holes, the lower end is located in another of the lower mounting holes, and the driving cable connected to the second driving connection portion is located between the upper arm portion and the lower arm portion.

19. A sliding door device, characterized in that: The invention comprises the automotive sliding door driving device according to any one of claims 1 to 18.

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