Electric sliding rail assembly, seat and vehicle

Abstract

The utility model provides an electric sliding rail assembly, a seat comprising the electric sliding rail assembly and a vehicle comprising the electric sliding rail assembly. The electric sliding rail assembly comprises electric sliding rails located on the two sides of the width direction respectively, and each electric sliding rail comprises an upper rail, a lower rail and a lower rail, the lower track is located below the upper track in the height direction, the upper track is connected with the lower track in a matched mode, and the upper track can move in the length direction relative to the lower track; the driving assembly comprises a driving motor, a transmission shaft and a gear box which are sequentially distributed in the length direction; the gearbox comprises an upper part and a lower part; wherein the arrangement direction of the driving motor is that the axis of the driving motor is arranged along the length direction, and the rotary motion output by the driving motor is transmitted to an input gear located at the upper part of the gear box through a transmission shaft and is output by an output gear transmitted to the lower part of the gear box.

Description

Technical Field

[0001] The present application relates to an electric slide rail assembly, a seat, and a vehicle. Background Art

[0002] In a seat, such as Figure 1 shown, for example, in a vehicle seat 100, there may be a slide rail mechanism, such as an electric slide rail assembly 10. The lower rail 12 of the electric slide rail assembly 10 generally cooperates with the installation ground 200 where the seat 100 is located. The electric slide rail assembly 10 can be used to adjust the front-back position of the seat in the length direction so that the seat is suitable for the occupant to sit on and does not block the driver's view of the rearview mirror. When the seat is not needed, the seat can also be adjusted as far forward as possible to expand the rear space, improve the comfort of the rear occupants, or provide more storage space in the vehicle to place more items.

[0003] Referring to Figure 2A , for a current solution of an electric slide rail assembly, such as Figure 2A the electric slide rail assembly 10a shown, a single-motor solution is adopted where the slide rails on both sides in the width direction share a driving motor 131a. The inventor found that the problem faced in this way is that due to the minimum safety distance between the driving motor 131a and the installation ground 200 (carpet floor mat), a worm and gear structure is used to achieve direction conversion, resulting in relatively high requirements for the center distance dimension of the gearbox 133a (the center distance is usually >50 mm, using 3 - 4 stage transmission). This will increase the price of the gearbox, reduce the driving efficiency and NVH performance, and at the same time, the single-motor arrangement will occupy the space of the seat, which is not conducive to the layout and design of the seat. In addition, for the single-motor solution, the dimension of the gearbox 133a in the width direction is usually large, which will increase the friction between the flexible strip (rubber strip) and the gearbox 133a, and is not conducive to the appearance and lifespan of the flexible strip. In addition, for the convenience of assembling the transmission system, the single-motor solution usually ships in an H-shaped manner, which will increase costs such as packaging and transportation.

[0004] Referring again to, such as Figure 2B shown, for another current solution of an electric slide rail assembly, such as Figure 2B the electric slide rail assembly 10b shown, a dual-motor solution is adopted where motors are provided on both sides of the slide rails. Since the structures on both sides are the same, Figure 2B only the structure on one side is shown. In the current dual-motor solution, the driving motor 131b is arranged along the height direction, so the motor will occupy more height space under the seat, making it inconvenient to arrange the space of the seat.

[0005] Therefore, there is a need in the art for an electric slide rail assembly, a seat, and a vehicle to overcome at least one of the above problems. Summary of the Utility Model

[0006] The purpose of the present application is to provide an electric slide rail assembly.

[0007] Another purpose of the present application is to provide a seat.

[0008] Another purpose of the present application is to provide a vehicle.

[0009] An electric slide rail assembly according to the first aspect of the present application includes: electric slide rails respectively located on both sides in the width direction, wherein each electric slide rail includes: an upper rail; a lower rail located below the upper rail in the height direction, the upper rail and the lower rail are cooperatively connected, and the upper rail can be displaced relative to the lower rail in the length direction; a driving assembly including a driving motor, a transmission shaft, and a gearbox sequentially distributed in the length direction; the gearbox includes an upper part and a lower part; wherein, the setting direction of the driving motor is that the axis of the driving motor is arranged along the length direction, the rotational motion output by the driving motor is transmitted to an input gear located in the upper part of the gearbox through the transmission shaft, and is output by an output gear transmitted to the lower part of the gearbox, driving a lead screw engaged with the output gear, so as to drive the upper rail to be displaceable relative to the lower rail in the length direction; wherein, the driving motor, the transmission shaft, and the upper part of the gearbox are located on the upper rail, and the lower part of the gearbox and the lead screw are accommodated in the lower rail.

[0010] For the technical solution of the electric slide rail introduced above, by adopting the structure of a dual motor, and arranging the driving motor, the transmission shaft, and the gearbox of the driving assembly sequentially in the length direction, and the setting direction of the driving motor is that the axis of the driving motor is arranged along the length direction, the driving assembly makes full use of the space in the length direction occupied by the slide rail assembly itself, overcoming Figure 2A the defects that the center distance of the gearbox is relatively high and the NVH performance needs to be improved in the shown solution, and there is no need to ship in the H type, reducing costs such as packaging and transportation, and also overcoming Figure 2B the defect of occupying more height space in the shown solution.

[0011] In one or more embodiments of the electric slide rail assembly described above, a first bracket is further provided on the upper rail, and the accommodating space provided by the first bracket accommodates the driving motor, the transmission shaft, and the upper part of the gearbox located on the upper rail.

[0012] In one or more embodiments of the electric slide rail assembly described above, a second bracket is further provided on the upper rail, the second bracket includes a first part and a second part connected to the first part, the first part is fixedly connected to the rear end area of the driving motor, and the second part is fixedly connected to the side wall of the first bracket in the width direction.

[0013] In one or more embodiments of the electric slide rail assembly, the second portion is guided and matched with a guide groove of a side wall of the first bracket in the width direction, and is fixedly connected to the side wall by a fastener.

[0014] In one or more embodiments of the electric slide rail assembly, a top end of the upper portion of the gear box has a rotation-stopping boss, and the rotation-stopping boss is fixedly connected to the first bracket.

[0015] In one or more embodiments of the electric slide rail assembly, a third bracket is further provided on the upper rail, the bottom surface of the third bracket is fixedly connected to the upper rail, and the third bracket includes a first fixing portion and a second fixing portion adjacently distributed in the length direction, the first fixing portion is fixedly connected to the front end of the drive motor, and the second fixing portion is fixedly connected to the rear end of the drive motor.

[0016] In one or more embodiments of the electric slide rail assembly, the upper rail is provided with a flexible strip, and the flexible strip is located on both sides of the upper part of the gear box in the width direction; the electric slide rail assembly also includes a roller assembly, and in the length direction, the roller assembly is located between the upper part of the gear box and the driving motor, and the roller of the roller assembly can flatten the warping of the flexible strip after contacting the housing of the gear box.

[0017] In one or more embodiments of the electric slide rail assembly, the extension direction of the rotation axis of the roller of the roller assembly is the width direction; and the transmission shaft is a flexible shaft.

[0018] A seat according to a second aspect of the present application comprises the electric slide rail assembly as described in the first aspect, wherein the lower rail cooperates with the installation ground where the seat is located.

[0019] The beneficial effects of the above embodiments include, but are not limited to, the use of the electric slide rail assembly introduced in the first aspect makes it easy to arrange the space under the seat cushion and improves the NVH performance of the seat.

[0020] A vehicle according to a third aspect of the present application comprises the electric slide rail assembly as described in the first aspect and the seat as described in the second aspect.

[0021] The beneficial effects of the above embodiments include, but are not limited to, the use of the electric slide rail assembly introduced in the first aspect makes it easy to arrange the seat space of the vehicle and has good NVH performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other features, properties, and advantages of the present application will become more apparent from the following description in conjunction with the drawings and embodiments, in which like reference numerals always denote like features. It should be noted that these drawings are only examples and are not drawn under the condition of equal proportions, and should not be used to limit the actual scope of protection required by the present application, where:

[0023] Figure 1 It is a schematic diagram of a seat in an embodiment.

[0024] Figure 2A 、 Figure 2B They are respectively schematic diagrams of the structures of an electric slide rail assembly of one kind and another comparative scheme.

[0025] Figure 3A 、 Figure 3B 、 Figure 3C They are schematic diagrams of the structures of an electric slide rail assembly from various perspectives in an embodiment.

[0026] Figure 4 It is a schematic diagram of the internal structure of an electric slide rail assembly in another embodiment.

[0027] Figure 5A 、 Figure 5B It is a schematic diagram of the internal structure of an electric slide rail assembly in yet another embodiment.

[0028] Figure 6A 、 Figure 6B It is a schematic diagram of the structure of a roller assembly of an electric slide rail assembly in an embodiment.

[0029] Reference numerals:

[0030] 1000 - Means of transportation

[0031] 100 - Seat

[0032] 200 - Ground

[0033] 10, 10a, 10b - Electric slide rail assembly

[0034] 11 - Upper rail

[0035] 12 - Lower rail

[0036] 13 - Driving assembly

[0037] 131, 131a, 131b - Driving motor

[0038] 1311 - Axis of the driving motor

[0039] 132 - Transmission shaft

[0040] 133, 133a - Gearbox

[0041] 1331- Upper part of gear box

[0042] 1332- Anti-rotation boss

[0043] 14-First bracket

[0044] 141-side wall of the first bracket in the width direction

[0045] 142-Guide groove

[0046] 143-Fasteners

[0047] 15-Second bracket

[0048] 151-First part of the second bracket

[0049] 152-Second part of the second bracket

[0050] 16- Third bracket

[0051] 161- first fixing part

[0052] 162-Second fixing part

[0053] 17-Flexible strip

[0054] 171-tilt

[0055] 18-Roller assembly

[0056] 181-Roller

[0057] 1810-Rotation axis of the roller

[0058] 182-Roller shaft

[0059] 183-Roller bracket. DETAILED DESCRIPTION

[0060] Reference will now be made in detail to the various embodiments of the application, the examples of which are shown in the accompanying drawings and are described below. Although the application will be described in conjunction with the exemplary embodiments, it should be appreciated that this specification is not intended to limit the application to those exemplary embodiments. On the contrary, the application is intended to not only cover these exemplary embodiments, but also to cover various alternative forms, modified forms, equivalent forms and other embodiments that may be included in the spirit and scope of the application defined by the appended claims.

[0061] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, upright, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0062] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present application. In addition, although the terms used in the present application are selected from well-known and commonly used terms, some terms mentioned in the specification of the present application may be selected by the applicant according to his or her judgment, and their detailed meanings are described in the relevant parts of the description herein. In addition, it is required to understand the present application not only through the actual terms used, but also through the meaning implied by each term.

[0063] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment" and / or "an embodiment" mean a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that the "an embodiment" or "one embodiment" mentioned twice or more at different positions in this specification is not necessarily the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0064] Although the electric slide rail assembly 10 disclosed in the embodiments of the present application is applicable to automotive seats to achieve the advantages of simple and compact structure, reliable operation, etc. on the basis of easy spatial arrangement of the seats, it is not limited thereto. For example, it can be applicable to the application occasions of other transportation means, such as heavy vehicles, railway trains, ships, and can also be applicable to fixed places, such as meeting halls, auditoriums, cinemas, etc.

[0065] It should be noted that in the following description, the length direction, width direction, and height direction are, for example, the X, Y, and Z directions shown in the drawings, and can also be referred to as the longitudinal direction, lateral direction, and vertical direction, and are not limited thereto.

[0066] Such as Figure 1As shown, the seat system 100 of a vehicle 1000, such as a car, includes a seat 100 and an electric slide rail assembly 10 which will be introduced in detail in the following embodiments. The lower rail 12 of the electric slide rail assembly 10 cooperates with the installation ground 200 where the seat 100 is located. The electric slide rail assembly 10 can be used to adjust the front and rear position of the seat in the length direction so that the seat is suitable for the occupant to sit on and does not block the driver's view of the rearview mirror. When the seat is not in use, the seat can also be adjusted as far forward as possible to expand the rear space, improve the comfort of the rear passengers, or provide more storage space in the vehicle to place more items.

[0067] Reference Figures 3A to 3C , and Figure 4 、 Figure 5A 、 Figure 5B and Figure 6A 、 Figure 6B As shown, in some embodiments, the electric slide rail assembly 10 includes electric slide rails 1 respectively located on both sides in the width direction. Since the structures of the electric slide rails 1 on both sides are the same, only one side of the electric slide rail is taken as an example for introduction in the drawings.

[0068] Each electric slide rail 1 includes: an upper rail 11, a lower rail 12, and a drive assembly 13.

[0069] Among them, the lower rail 12 is located below the upper rail 11 in the height direction. The upper rail 11 is cooperatively connected with the lower rail 12, and the upper rail 11 can be displaced relative to the lower rail 11 in the length direction. The cooperative connection between the upper rail 11 and the lower rail 12 can adopt the common male-rail and female-rail cooperative structure in the art, which will not be elaborated here.

[0070] Reference Figure 3A 、 Figure 3B and Figure 4 As shown, the drive assembly 13 includes a drive motor 131, a transmission shaft 132, and a gearbox 133 distributed in sequence in the length direction; the gearbox 133 includes an upper part 1331 and a lower part; among them, the setting direction of the drive motor 131 is that the axis 1311 of the drive motor is arranged along the length direction. The rotational motion output by the drive motor 131 is transmitted to the input gear located in the upper part 1331 of the gearbox 133 through the transmission shaft 132 and is transmitted to the output gear in the lower part of the gearbox 133 for output, driving the lead screw that cooperates with the output gear, thereby driving the upper rail 11 to be able to displace relative to the lower rail 11 in the length direction; among them, the drive motor 131, the transmission shaft 132, and the upper part 1331 of the gearbox are located on the upper rail 11, and the lower part of the gearbox and the lead screw are accommodated in the lower rail 12.

[0071] The meaning of the drive motor 131 is similar to its common meaning in the art, that is, it may include a separate motor, or a component with a transmission mechanism integrated at the output end of the motor, such as the so-called "speed reduction motor", etc., which are not limited hereby.

[0072] In some embodiments, the drive shaft 132 is a flexible shaft. The drive shaft 132 extends along the length direction. One end is connected to the output end of the drive motor 131, and the other end is connected to the input gear of the gearbox 133. The meaning of the flexible shaft 5 here is relative to the rigid shaft, and the meaning of the flexible shaft is similar to its common meaning in the art, that is, the flexible shaft is a shaft with very little rigidity, elastic and capable of freely bending transmission.

[0073] It can be understood that the gear structure of the gearbox can adopt a structure with multiple gears arranged in the height direction, converting the operation of the rotating output gear into the movement of the lead screw in the length direction. It can also refer to common structures such as lead screw motors. For example, the lead screw cooperates with the nut to form a lead screw-nut mechanism, converting the rotation of the lead screw into a linear motion, which is well-known to those skilled in the art, so it is not shown in the figure. In addition, the lower part of the gearbox 133 and the lead screw are accommodated by the lower track 12 and blocked by the upper track 11, so they are not shown in the figure.

[0074] The beneficial effects of adopting the above embodiments are as follows: By adopting the structure of a dual motor, and arranging the drive motor, drive shaft, and gearbox of the drive assembly in sequence in the length direction, and setting the direction of the drive motor such that the axis of the drive motor is arranged along the length direction, the drive assembly makes full use of the space in the length direction occupied by the slide rail assembly itself, overcoming the Figure 2A defects in the shown solution that the center distance of the gearbox is relatively high and the NVH performance needs to be improved, and there is no need to ship in the H-type manner, reducing costs such as packaging and transportation, and also overcoming the Figure 2B defects in the shown solution that it occupies more height space.

[0075] Continue to refer to Figures 3A to 3C As shown in the figure, in some embodiments, a first bracket 14 is further provided on the upper track 11. The accommodation space provided by the first bracket 14 accommodates the drive motor 131, the drive shaft 132, and the upper part 1331 of the gearbox located on the upper track 11. That is, the first bracket 14 generally covers the drive motor 131, the drive shaft 132, and the upper part 1331 of the gearbox. In the figure, in order to show the internal distribution, the complete structure of the first bracket 14 is not shown. Adopting the structure of the first bracket 14 can improve the stability of the structure, protect the drive assembly from being contaminated by external pollutants such as dust, and can also isolate the noise and vibration of the drive assembly.

[0076] Continue to refer to Figures 3A to 3CAs shown, in some embodiments, the structure for mounting and fixing the driving motor 131 may be such that a second bracket 15 is further provided on the upper rail 11. The second bracket 15 includes a first part 151 and a second part 152 connected to the first part 151. The first part 151 is fixedly connected to the rear end region of the driving motor 131, and the second part 152 is fixedly connected to the side wall 141 of the first bracket 14 in the width direction. Such an installation structure is simple, the installation and fixing effect is reliable, and there are fewer components.

[0077] Reference Figure 3C As shown, in some embodiments, the connection structure between the first bracket 14 and the second bracket 15 may be that the second part 152 is guided and fitted with the guiding groove 142 on the side wall of the first bracket 14 in the width direction, and is fixedly connected to the side wall 141 through a fastener 143. The fastener 143 may be, for example, the screw part shown in the figure, or a pin, a rivet, etc., and is not limited thereto. The structure of the guiding groove 142 makes it convenient to install and disassemble the second bracket to the first bracket, making the structure convenient for assembly and disassembly maintenance, and at the same time the connection effect is also relatively reliable.

[0078] Reference Figure 3A And Figure 3B As shown, in some embodiments, the top end of the upper part 1331 of the gearbox has a rotation-preventing boss 1332, and the rotation-preventing boss 1332 is fixedly connected to the first bracket 14 to prevent the gearbox 133 from rotating.

[0079] Reference Figure 4 As shown, in some other embodiments, the structure for mounting and fixing the driving motor 131 may also be that a third bracket 16 is further provided on the upper rail 11. The bottom surface of the third bracket 16 is fixedly connected to the upper rail 11, and the third bracket 16 includes a first fixing part 161 and a second fixing part 162 distributed adjacent to each other in the length direction. The first fixing part 161 is fixedly connected to the front end of the driving motor 131, and the second fixing part 162 is fixedly connected to the rear end of the driving motor 131.

[0080] Specifically, shock pads may be provided on both the first fixing part 161 and the second fixing part 162. During installation, first insert and install the front end of the driving motor into the first fixing part 161, and then snap the rear end of the driving motor into the second fixing part 162. It can be understood that the third bracket 16 has a larger area than the second bracket 15 and can be applied to the case where the noise reduction requirement for the driving motor 131 is relatively strict.

[0081] Reference Figure 5A 、 Figure 5B And Figure 6A 、 Figure 6BAs shown, in some other embodiments, the upper track 11 is provided with flexible strips 17, and the flexible strips 17 are located on both sides in the width direction of the upper part 1331 of the gearbox; the electric slide rail assembly 10 further includes a roller assembly 18. In the length direction, the roller assembly 18 is located between the upper part 1331 of the gearbox and the drive motor 11, and the roller 181 of the roller assembly 18 can flatten the warpage 171 after the flexible strip 17 contacts the housing of the gearbox 13.

[0082] The flexible strip 17 is generally made of rubber or silica gel, so it is generally also called a rubber strip. The function of the flexible strip 17 is to prevent foreign objects from falling into the lower track 12. Therefore, the width gap between the flexible strips 17 on both sides is generally small. Therefore, when moving, the gearbox 133 of the drive component 13 will contact it, resulting in the warpage of the flexible strip 17. The beneficial effect of using the roller assembly 18 is that the warpage 171 can be flattened in time, avoiding the long-distance friction of the motor 131 arranged along the length direction caused by the warpage 171 of the flexible strip, which affects the service life of the flexible strip 17.

[0083] In some embodiments, the extending direction of the rotation axis 1810 of the roller 181 of the roller assembly 18 is the width direction, so that the arrangement of the roller assembly 18 is more compact. The roller 181 can be made of lubricated wear-resistant plastic materials, such as POM plastic, polyimide plastic, etc. The component providing the rotation axis 1810 of the roller 181 can be a roller shaft 182, which can be made of metal. The roller shaft 182 can be a common pin shaft structure. The two ends of the roller shaft 182 are respectively fixedly connected to the first bracket 14 and the roller bracket 183, so it is easy to install. However, this is not a limitation, and it can also be a structure in which the roller 181 and the roller shaft 182 are integrally formed.

[0084] In summary, the beneficial effects of the electric slide rail assembly, seat and vehicle introduced in the above embodiments include but are not limited to, by adopting the structure of dual motors, and arranging the drive motor, transmission shaft and gearbox of the drive component in sequence in the length direction, and the setting direction of the drive motor is that the axis of the drive motor is arranged along the length direction, so that the drive component makes full use of the space in the length direction occupied by the slide rail assembly itself, overcoming the Figure 2A defects shown in the scheme, such as the high center distance of the gearbox and the need to improve the NVH performance, and there is no need to ship in the H-shaped manner, reducing costs such as packaging and transportation, and also overcoming the Figure 2B defects shown in the scheme of occupying more height space. By adopting this, it is easy to arrange the space for the seat and vehicle, and improve the NVH performance.

[0085] Although the present application is disclosed above with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the technical solution of the present application shall fall within the protection scope defined by the claims of the present application.

Claims

1. An electric slide rail assembly (10), characterized in that, Comprising: Electric slide rails (1) respectively located on both sides in the width direction, wherein each electric slide rail (1) comprises: An upper rail (11); A lower rail (12), located below the upper rail (11) in the height direction, the upper rail (11) is cooperatively connected with the lower rail (12), and the upper rail (11) can be displaced relative to the lower rail (12) in the length direction; A drive assembly (13), including a drive motor (131), a transmission shaft (132), and a gearbox (133) sequentially distributed in the length direction; the gearbox (133) includes an upper part (1331) and a lower part; wherein, the setting direction of the drive motor (131) is that the axis (1311) of the drive motor is arranged along the length direction, the rotational motion output by the drive motor (131) is transmitted to an input gear located in the upper part (1331) of the gearbox (133) through the transmission shaft (132), and is output by an output gear transmitted to the lower part of the gearbox (133) to drive a lead screw engaged with the output gear, thereby driving the upper rail (11) to be displaceable relative to the lower rail (12) in the length direction; Wherein, the drive motor (131), the transmission shaft (132), and the upper part (1331) of the gearbox are located on the upper rail (11), and the lower part of the gearbox and the lead screw are accommodated in the lower rail (12).

2. The electric slide rail assembly (10) according to claim 1, characterized in that, A first bracket (14) is further provided on the upper rail (11), and the accommodation space provided by the first bracket (14) accommodates the drive motor (131), the transmission shaft (132), and the upper part (1331) of the gearbox located on the upper rail (11).

3. The electric slide rail assembly (10) according to claim 2, characterized in that, A second bracket (15) is further provided on the upper rail (11), the second bracket (15) includes a first part (151) and a second part (152) connected to the first part (151), the first part (151) is fixedly connected to the rear end area of the drive motor (131), and the second part (152) is fixedly connected to the side wall (141) of the first bracket (14) in the width direction.

4. The electric slide rail assembly (10) according to claim 3, characterized in that, The second part (152) is in guiding cooperation with the guiding groove (142) of the side wall of the first bracket (14) in the width direction, and is fixedly connected to the side wall (141) through a fastener (143).

5. The electric slide rail assembly (10) according to claim 2, wherein The top end of the upper part (1331) of the gearbox has a rotation-stopping boss (1332), and the rotation-stopping boss (1332) is fixedly connected to the first bracket (14).

6. The electric slide rail assembly (10) according to claim 1, wherein, A third bracket (16) is further provided on the upper rail (11), the bottom surface of the third bracket (16) is fixedly connected to the upper rail (11), and the third bracket (16) includes a first fixing part (161) and a second fixing part (162) distributed adjacent to each other in the length direction, the first fixing part (161) is fixedly connected to the front end of the drive motor (131), and the second fixing part (162) is fixedly connected to the rear end of the drive motor (131).

7. The electric slide rail assembly (10) according to claim 1, wherein, The upper track (11) is provided with a flexible strip (17), and the flexible strip (17) is located on both sides in the width direction of the upper part (1331) of the gearbox; the electric slide rail assembly (10) further includes a roller assembly (18). In the length direction, the roller assembly (18) is located between the upper part (1331) of the gearbox and the drive motor (131), and the roller (181) of the roller assembly (18) can flatten the warping (171) after the flexible strip (17) contacts the housing of the gearbox (133).

8. The electric slide rail assembly (10) according to claim 7, characterized in that, The extending direction of the rotation axis (1810) of the roller of the roller assembly (18) is the width direction; the transmission shaft (132) is a flexible shaft.

9. A seat (100), characterized in that, Adapted to the electric slide rail assembly (10) according to any one of claims 1-8, the lower track (12) cooperates with the installation ground (200) where the seat (100) is located.

10. A vehicle (1000), characterized in that, Comprising the electric slide rail assembly (10) according to any one of claims 1-8.

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