Automobile seat slide rail motor with built-in controller

By incorporating a built-in control module and a rotating snap-fit ​​structure, the design solves the problems of difficult installation and complex wiring of existing automotive seat slide rail motors, achieving compactness and simplified wiring, reducing the risk of electromagnetic interference, and improving control accuracy.

CN224090068UActive Publication Date: 2026-04-07NINGBO SHUANGLIN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The separate controller for existing car seat slide rail motors makes installation difficult, takes up a lot of space, has complicated wiring design, and is prone to electromagnetic interference.

Method used

The control module is built into the slide rail motor. The control module and the drive unit are directly connected through pins and fixed by a rotating snap-fit ​​structure, which simplifies the wiring design and reduces the risk of electromagnetic interference.

Benefits of technology

It achieves a compact electric seat drive structure and simple wiring, reduces installation difficulty and electromagnetic interference risk, and improves control accuracy and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile seat slide rail motor with a built-in controller, a driving side of the slide rail motor is provided with a driving shaft, the slide rail motor is provided with a control chamber close to the driving side, the driving shaft passes through the control chamber, the slide rail motor is internally provided with a control module, and the control module is suitable for being accommodated in the control chamber. The sliding rail motor has the advantages of being compact in structure, simple in wiring and good in universality, the control module is arranged in the sliding rail motor, the sliding rail motor and the control module are directly connected, wiring harnesses can be omitted, the wiring design is simplified, meanwhile, the control module is close to the motor, the signal transmission distance can be effectively shortened, and the signal transmission efficiency is improved. And the risk of electromagnetic interference is reduced.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile accessories, in particular to an automobile seat slide rail motor with a built-in controller. BACKGROUND

[0002] An automobile seat refers to a seat for sitting on an automobile, and is generally classified into a manual seat and an electric seat. The bottom of the electric seat is generally provided with two seat slide rails for support, and a slide rail motor is used to drive the seat slide rails to realize the movement adjustment of the seat.

[0003] However, the existing automobile seat slide rail motor has the following defects: a common electric seat independently sets a controller below the seat, uses one slide rail motor to drive two seat slide rails, or uses two slide rail motors to drive two seat slide rails respectively, but the controller is difficult to install in this arrangement, is easy to occupy the space below the seat, and the wiring design between the controller and the slide rail motor is difficult. SUMMARY

[0004] An object of the application is to provide an automobile seat slide rail motor with a built-in controller, which is compact in structure, simple in wiring and good in universality.

[0005] To achieve the above object, the application adopts the technical scheme of an automobile seat slide rail motor with a built-in controller, a drive shaft is arranged on the drive side of the slide rail motor, a control cavity is arranged on the drive side of the slide rail motor, the drive shaft passes through the control cavity, a control module is built in the slide rail motor, the control module is adapted to be accommodated in the control cavity, and is coaxially and spacedly nested on the peripheral side of the drive shaft.

[0006] In some embodiments, the slide rail motor comprises a housing, an end cover and a drive assembly, the drive assembly is adapted to be arranged in the housing, the end cover is adapted to close the drive side of the housing, the front end of the drive assembly is provided with a positioning column, the positioning column is adapted to abut against the end cover, and the control cavity is formed between the end cover and the drive assembly.

[0007] In some embodiments, an interface module is arranged on the peripheral side of the slide rail motor, the interface module is provided with a first pin, a second pin, a third pin and a fourth pin, the first pin is adapted to be connected to the positive electrode of a power supply, the second pin is adapted to be connected to the negative electrode of the power supply, the third pin is adapted to be connected to a communication bus, and the fourth pin is adapted to be connected to the ground in a vacant or short-circuit manner, so as to distinguish the rotation direction of the slide rail motor.

[0008] In some embodiments, the interface module is connected with the control module and the drive assembly through the shell outside the shell; the control module is provided with a positioning opening, and the positioning column is adapted to be embedded in the positioning opening and limit the movement of the control module.

[0009] In some embodiments, the drive side of the slide rail motor is provided with a bracket assembly, the bracket assembly is provided with a connecting seat, the connecting seat is provided with a through hole, the connecting seat is provided with a vibration isolation pad, the periphery of the connecting seat is provided with a first rotating clamping structure, the periphery of the drive side of the slide rail motor is provided with a second rotating clamping structure, the drive shaft is adapted to pass through the through hole and tightly fit the drive side of the slide rail motor to the vibration isolation pad, and the slide rail motor is adapted to rotate in the circumferential direction so that the first rotating clamping structure and the second rotating clamping structure are locked.

[0010] In some embodiments, the first rotating clamping structure includes a clamping groove and a barb, the second rotating clamping structure includes a boss and a groove, the clamping groove and the boss are adapted to be connected and limit the slide rail motor from being separated from the connecting seat, the barb and the groove are adapted to be connected and limit the slide rail motor from being separated from the connecting seat, and the boss is adapted to move in the clamping groove so that the barb cooperates with the groove.

[0011] In some embodiments, the first rotating clamping structure includes a guide groove and a fixed groove, the second rotating clamping structure includes a boss, the guide groove and the fixed groove are spaced apart along the circumference of the connecting seat, the guide groove is provided with a movable clamping portion near one side of the fixed groove, the boss is adapted to enter the guide groove in the axial direction of the connecting seat, when the boss is adapted to move in the axial direction of the connecting seat, the movable clamping portion is adapted to elastically deform in the radial direction of the connecting seat, so that the boss is adapted to enter the fixed groove from the guide groove, and the movable clamping portion and the boss are adapted to cooperate to limit the boss.

[0012] In some embodiments, the width of the guide groove from the side away from the fixed groove to the side close to the fixed groove is in a shrinkage trend and connected with the movable clamping portion, and one end of the boss is in a shrinkage trend to the other end; the guide groove, the fixed groove and the boss are all knife-shaped structures.

[0013] In some embodiments, the vibration isolation pad is made of flexible or elastic material, and the drive side of the slide rail motor is in interference fit with the vibration isolation pad when the slide rail motor is connected with the connecting seat.

[0014] In some embodiments, the bracket assembly is adapted to connect a seat slide rail having a first slide rail and a second slide rail, a transmission device is provided between the first slide rail and the second slide rail, the transmission device is adapted to allow the first slide rail and the second slide rail to slide relative to each other, and the slide rail motor is adapted to be fixed to the first slide rail by the bracket assembly and to cooperate with the transmission device.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: The automotive seat slide rail motor with built-in controller of this application can improve the overall compactness of the drive structure under the electric seat by setting the control module inside, reducing the space occupied by the control part of the slide rail motor under the electric seat. At the same time, the slide rail motor is no longer subject to the connection restrictions of traditional controllers, and the arrangement method is more flexible and diverse. The control module and the drive part of the slide rail motor can be directly connected through pins, thereby reducing wiring and making installation simpler and more efficient. In addition, the control module is closer to the slide rail motor, which can effectively shorten the signal transmission distance, reduce the risk of electromagnetic interference, and simplify wiring design. Attached Figure Description

[0016] Figure 1 This is a connection view of the slide rail motor and the seat slide rail according to a preferred embodiment of this application.

[0017] Figure 2 This is a top view showing the connection between the slide rail motor and the seat slide rail according to a preferred embodiment of this application.

[0018] Figure 3 This is a preferred embodiment according to this application. Figure 2 A cross-sectional view along the AA direction.

[0019] Figure 4 This is an exploded structural view of a slide rail motor according to a preferred embodiment of this application.

[0020] Figure 5 This is a structural view of an interface module according to a preferred embodiment of this application.

[0021] Figure 6 This is a schematic diagram of a connection between a bracket assembly and a slide rail motor according to a preferred embodiment of this application.

[0022] Figure 7 This is a schematic diagram of another connection between the bracket assembly and the slide rail motor according to a preferred embodiment of this application.

[0023] In the diagram: 1. Slide rail motor; 11. Control chamber; 12. Control module; 121. Positioning port; 13. Second rotary snap-fit ​​structure; 131. Boss; 132. Groove; 14. Housing; 15. End cap; 16. Drive assembly; 161. Drive shaft; 162. Positioning post; 2. Seat slide rail; 21. First slide rail; 211. First positioning part; 212. Locking device; 22. Second slide rail; 23. Transmission device; 3. Bracket assembly; 31. Connecting seat; 311. First rotary snap-fit ​​structure; 3111. Slot; 3112. Barb; 3113. Guide groove; 3114. Fixing groove; 3115. Movable snap-fit ​​part; 32. Through hole; 33. Vibration damping pad; 4. Interface module. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, 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, and should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0029] like Figures 1 to 7As shown, this application provides a car seat slide rail motor with a built-in controller, including two slide rail motors 1 and two sets of seat slide rails 2. The slide rail motors 1 and seat slide rails 2 are configured to cooperate with each other. One slide rail motor 1 is suitable for driving a corresponding set of seat slide rails 2. Specifically, the seat slide rail 2 includes a first slide rail 21 and a second slide rail 22. The first slide rail 21 and the second slide rail 22 are respectively connected to the vehicle body and a seat is provided. A transmission device 23 (including an HDM gearbox, a drive shaft and other transmission components) is provided between the first slide rail 21 and the second slide rail 22. The slide rail motor 1 is connected to the transmission device 23. The slide rail motor 1 is suitable for driving the transmission device 23 to make the first slide rail 21 and the second slide rail 22 slide relative to each other, thereby driving the seat to move.

[0030] It is understandable that when there are two slide rail motors 1 and two seat slide rails 2, the space under the seat can be used without taking up space, and the seat can be stably supported for sliding adjustment. When there are more than two slide rail motors 1 and two seat slide rails 2, the slide rail motor 1 synchronous motion system and method of this application can also be used for arrangement and control.

[0031] The slide rail motor 1 has a control chamber 11 near the drive side. The drive shaft 161 of the slide rail motor 1 passes through the control chamber 11. The slide rail motor 1 has a built-in control module 12. The control module 12 is adapted to be housed in the control chamber 11 and is coaxially and spaced around the drive shaft 161. The control module 12 is installed inside the slide rail motor 1 by avoiding the drive shaft 161, which ensures stability and reduces the overall compactness of the slide rail motor 1, thereby freeing up space under the seat. The synchronous control requirement of the slide rail motor 1 caused by the built-in control module 12 can be achieved by the synchronous movement method of the slide rail motor 1 in the above embodiment.

[0032] In the traditional method of two slide rail motors 1 sharing a single controller, the power supply voltage and drive motor current are prone to mutual interference. However, this application uses a built-in control module 12 design to bring the controller closer to the motor, shorten the signal transmission distance, reduce the risk of electromagnetic interference, and simplify the wiring design. This makes the collected motor data more accurate and reliable, thereby improving the control accuracy and reliability of the controller.

[0033] In some embodiments, the control module 12 and the drive part of the slide rail motor 1 are directly connected by pins. The connection between the motor and the circuit board can be realized by using the pins of some components themselves, which simplifies the wiring, makes the installation process more convenient, and reduces the installation difficulty and cost.

[0034] like Figures 1 to 3In the embodiments shown in 6 and 7, a bracket assembly 3 is provided between the slide rail motor 1 and the seat slide rail 2. A connecting seat 31 is provided on the bracket assembly 3. A through hole 32 is provided on the connecting seat 31. A vibration damping pad 33 is provided inside the connecting seat 31. A first rotary locking structure 311 is provided on the periphery of the connecting seat 31. A second rotary locking structure 13 is provided on the periphery of the drive side of the slide rail motor 1. The drive shaft 161 is adapted to pass through the through hole 32 and to make the drive side of the slide rail motor 1 fit tightly against the vibration damping pad 33. The slide rail motor 1 is adapted to rotate circumferentially, so that the first rotary locking structure 311 and the second rotary locking structure 13 cooperate and lock.

[0035] In some embodiments, the vibration isolation pad 33 is made of a flexible or elastic material, such as rubber. When the first rotary locking structure 311 and the second rotary locking structure 13 are engaged and locked, the drive side of the slide rail motor 1 and the vibration isolation pad 33 can maintain an interference fit. The micro-deformation and flexibility of the vibration isolation pad are used to buffer the connection between the slide rail motor 1 and the connecting seat 31, thereby reducing the noise generated by vibration.

[0036] The circumferential rotation locking method of the first rotary locking structure 311 and the second rotary locking structure 13 can lock the slide rail motor 1 and the connecting seat 31 while maintaining alignment between the square head of the drive shaft 161 and the square hole of the HDM gearbox. This can effectively reduce the assembly difficulty and solve the problem of angular alignment between the square head of the drive shaft 161 and the square hole of the HDM gear shaft during the assembly of the slide rail motor 1 and the connecting seat 31.

[0037] like Figures 1 to 3 In the embodiment shown in Figure 6, the first rotary snap-fit ​​structure 311 includes a slot portion 3111 and a barb portion 3112, and the second rotary snap-fit ​​structure 13 includes a boss portion 131 and a groove portion 132. The slot portion 3111 and the boss portion 131 are adapted to engage and restrict the slide rail motor 1 from disengaging from the connecting seat 31. The barb portion 3112 and the groove portion 132 are adapted to engage and restrict the slide rail motor 1 from disengaging from the connecting seat 31. The boss portion 131 is adapted to move within the slot portion 3111 so that the barb portion 3112 engages with the groove portion 132.

[0038] like Figure 6In the illustrated embodiment, the slot portion 3111 is opened circumferentially along the connecting shaft and the openings all face clockwise (counterclockwise). The slide rail motor 1 can rotate counterclockwise (clockwise) so that the boss portion 131 enters from the opening of the slot portion 3111 and moves deeper along the slot portion 3111, so that the connecting seat 31 and the slide rail motor 1 are axially engaged and limited. During this process, the barb portion 3112 can use its own deformation to fit against the outer surface of the slide rail motor 1. As the slide rail motor 1 rotates relative to the connecting seat 31, the barb portion 3112 can slide into the groove portion 132, so that the connecting seat 31 and the slide rail motor 1 are engaged and limited axially and circumferentially, thereby locking the connecting seat 31 and the slide rail motor 1.

[0039] In some embodiments, the number of slot portions 3111 and boss portions 131 are the same and there are multiple slot portions 3111. The slot portions 3111 are arranged at intervals along the circumference of the connecting seat 31, and the boss portions 131 are arranged at intervals along the circumference of the slide rail motor 1. The slot portions 3111 and boss portions 131 are suitable for one-to-one corresponding engagement and connection, which can improve the stability of the initial engagement between the connecting seat 31 and the slide rail motor 1, reduce the reaction force at the vibration isolation pad 33 along the axial direction of the slide rail motor 1, and reduce the difficulty of locking the hook portion 3112 and the groove portion 132.

[0040] like Figure 7 In the illustrated embodiment, the first rotary snap-fit ​​structure 311 includes a guide groove 3113 and a fixing groove 3114, and the second rotary snap-fit ​​structure 13 includes a boss portion 131. The guide groove 3113 and the fixing groove 3114 are distributed circumferentially along the connecting seat 31. A movable snap-fit ​​portion 3115 is provided on the side of the guide groove 3113 near the fixing groove 3114. The boss portion 131 is adapted to enter the guide groove 3113 along the axial direction of the connecting seat 31. When the boss portion 131 is adapted to move along the axial direction of the connecting seat 31, the movable snap-fit ​​portion 3115 is adapted to elastically deform along the radial direction of the connecting seat 31, so that the boss portion 131 is adapted to enter the fixing groove 3114 from the guide groove 3113. The movable snap-fit ​​portion 3115 and the boss portion 131 are adapted to cooperate to restrict and fix the boss portion 131.

[0041] Understandably, the movable locking part 3115 plays a one-way locking role. When the boss part 131 moves from the guide groove 3113 to the fixed groove 3114, the movable locking part 3115 is difficult to restrict the movement of the boss part 131 under the guidance of the contact surface direction with the boss part 131. However, when the boss part 131 enters the fixed groove 3114, the contact surface direction between the boss part 131 and the movable locking part 3115 changes. The boss part 131 is difficult to elastically deform along the radial direction of the connecting seat 31 when the movable locking part 3115 is pressed. Therefore, the boss part 131 is successfully restricted in the fixed groove 3114 and is difficult to detach.

[0042] like Figure 7In the embodiment shown, the guide groove 3113 has an inlet on the side near the mounting of the slide rail motor 1. When the slide rail motor 1 mates with the connecting seat 31 along the axial direction, the boss 131 can enter the guide groove 3113 from this side. The fixing groove 3114 has an inlet on the side near the guide groove 3113. The boss 131 is adapted to push open the movable latching part 3115 and enter the fixing groove 3114. The fixing groove 3114 restricts the movement of the boss 131 on the opposite side of the mating direction (axial direction) between the slide rail motor 1 and the connecting seat 31 and the inlet. The movable latching part 3115 restricts the movement of the boss 131 on the inlet side of the fixing groove 3114.

[0043] like Figure 7 In the illustrated embodiment, the guide groove 3113 narrows in width from the side away from the fixed groove 3114 to the side closer to the fixed groove 3114 and connects with the movable latching part 3115. One end of the boss part 131 narrows in width from the other end. When the boss part 131 moves circumferentially along the connecting seat 31 within the guide groove 3113, as the guide groove 3113 narrows, the boss part 131 is adapted to engage with the movable latching part 3115 in the radial direction of the connecting seat 31 and the slide rail motor 1, and is adapted to more smoothly compress the movable latching part 3115 to deform in the radial direction of the connecting seat 31 and the slide rail motor 1, which can effectively reduce the difficulty of the boss part 131 passing through the movable latching part 3115.

[0044] like Figure 7 In the embodiment shown, the guide groove 3113, the fixing groove 3114, and the boss 131 are all knife-shaped structures. One side of the knife-shaped structure is suitable for guiding, so that the boss 131 can enter the fixing groove 3114 from the guide groove 3113. The other side of the knife-shaped structure is used for positioning, restricting the boss 131 from returning to the guide groove 3113 from the fixing groove 3114.

[0045] like Figure 7 In the embodiment shown, the number of guide grooves 3113, fixing grooves 3114 and bosses 131 are the same and there are multiple of each. The structural combination formed by the spaced arrangement of one guide groove 3113 and one fixing groove 3114 is arranged circumferentially along the connecting seat 31. The bosses 131 are arranged circumferentially along the slide rail motor 1. The guide grooves 3113, fixing grooves 3114 and bosses 131 are adapted to be connected in a one-to-one correspondence.

[0046] like Figure 3 and 4In the embodiment shown, the slide rail motor 1 includes a housing 14, an end cover 15, and a drive assembly 16. The drive assembly 16 is adapted to be disposed within the housing 14, and the end cover 15 is adapted to close the drive side of the housing 14. A positioning post 162 is provided at the front end of the drive assembly 16. The positioning post 162 is adapted to abut against the end cover 15 and form a control chamber 11 between the end cover 15 and the drive assembly 16. The positioning post 162 can shape the control chamber 11, stabilize the structure of the control chamber 11, and protect the control module 12 inside the control chamber 11.

[0047] like Figure 3 and 4 In the embodiment shown, the control module 12 is provided with a positioning port 121, and the positioning post 162 is adapted to fit into the positioning port 121 and restrict the movement of the control module 12. The positioning post 162 can reduce the difficulty of aligning the control module 12 during installation and fix it in the control chamber 11. If the control module 12 and the slide rail motor 1 are directly connected through pins, the positioning post 162 can effectively improve the stability of the connection between the control module 12 and the slide rail motor 1.

[0048] like Figure 5 In the embodiment shown, the two slide rail motors 1 rotate in opposite directions when driving the seat slide rail 2. An interface module 4 is provided on the outer periphery of the slide rail motor 1. The interface module 4 is provided with a first pin, a second pin, a third pin and a fourth pin. The first pin is suitable for connecting to the positive terminal of the power supply, the second pin is suitable for connecting to the negative terminal of the power supply, the third pin is suitable for connecting to the communication bus, and the fourth pin is suitable for being unconnected or short-circuited to ground, so as to distinguish the rotation direction of the slide rail motor 1.

[0049] In this application, since the rotation of the slide rail motor 1 is opposite depending on the installation position of the slide rail motor 1 when different seat slide rails 2 are running, it is necessary to distinguish them. By designing the fourth pin as a configuration line, it can be used to identify and set the rotation direction of the slide rail motor 1. After using this solution, the control module 12 in different slide rail motors 1 can share a set of programs. The rotation of the slide rail motor 1 can be distinguished by configuring the connection between the wiring harness and the pin. It has stronger versatility and is simpler and more convenient to install.

[0050] like Figure 5 In the embodiment shown, the interface module 4 passes through the housing 14 on the outside of the housing 14 and connects to the control module 12 and the drive component 16, thus realizing the external placement of the interface module 4 and facilitating connection.

[0051] In some embodiments, the interface of the interface module 4 is oriented away from the drive side of the slide rail motor 1, which can reduce structural interference during the wiring process of the interface module 4.

[0052] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are only the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope of this application. All such changes and modifications fall within the scope of this application as claimed. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A car seat slide rail motor with a built-in controller, characterized in that: The slide rail motor has a drive shaft on its drive side, and a control chamber is provided near the drive side of the slide rail motor. The drive shaft passes through the control chamber. The slide rail motor has a built-in control module, which is adapted to be housed in the control chamber and is coaxially and spaced around the drive shaft. The slide rail motor includes a housing, an end cover, and a drive assembly. The drive assembly is adapted to be disposed within the housing. The end cover is adapted to close the drive side of the housing. A positioning post is provided at the front end of the drive assembly. The positioning post is adapted to abut against the end cover and form the control chamber between the end cover and the drive assembly.

2. The automotive seat slide rail motor with a built-in controller as described in claim 1, characterized in that: The control module and the drive section of the slide rail motor are directly connected via pins.

3. The automotive seat slide rail motor with a built-in controller as described in claim 1, characterized in that: An interface module is provided on the outer periphery of the slide rail motor. The interface module is provided with a first pin, a second pin, a third pin, and a fourth pin. The first pin is suitable for connecting to the positive terminal of the power supply, the second pin is suitable for connecting to the negative terminal of the power supply, the third pin is suitable for connecting to the communication bus, and the fourth pin is suitable for being unconnected or short-circuited to ground to distinguish the rotation direction of the slide rail motor.

4. The automotive seat slide rail motor with a built-in controller as described in claim 3, characterized in that: The interface module passes through the housing on the outside of the housing and is connected to the control module and the drive assembly; the control module has a positioning port, and the positioning post is adapted to fit into the positioning port and restrict the movement of the control module.

5. The automotive seat slide rail motor with a built-in controller as described in claim 1, characterized in that: The drive side of the slide rail motor is provided with a bracket assembly, the bracket assembly is provided with a connecting seat, the connecting seat is provided with a through hole, the connecting seat is provided with a vibration damping pad, the periphery of the connecting seat is provided with a first rotary locking structure, the periphery of the drive side of the slide rail motor is provided with a second rotary locking structure, the drive shaft is adapted to pass through the through hole and to make the drive side of the slide rail motor fit tightly against the vibration damping pad, the slide rail motor is adapted to rotate circumferentially, so that the first rotary locking structure and the second rotary locking structure cooperate and lock.

6. The automotive seat slide rail motor with a built-in controller as described in claim 5, characterized in that: The first rotary snap-fit ​​structure includes a slot portion and a barb portion, and the second rotary snap-fit ​​structure includes a boss portion and a groove portion. The slot portion and the boss portion are adapted to engage and restrict the slide rail motor from disengaging from the connecting seat. The barb portion and the groove portion are adapted to engage and restrict the slide rail motor from disengaging from the connecting seat. The boss portion is adapted to move within the slot portion so that the barb portion engages with the groove portion.

7. The automotive seat slide rail motor with a built-in controller as described in claim 5, characterized in that: The first rotary snap-fit ​​structure includes a guide groove and a fixing groove, and the second rotary snap-fit ​​structure includes a boss portion. The guide groove and the fixing groove are distributed circumferentially along the connecting seat. A movable snap-fit ​​portion is provided on the side of the guide groove near the fixing groove. The boss portion is adapted to enter the guide groove along the axial direction of the connecting seat. When the boss portion is adapted to move along the axial direction of the connecting seat, the movable snap-fit ​​portion is adapted to elastically deform along the radial direction of the connecting seat, so that the boss portion is adapted to enter the fixing groove from the guide groove. The movable snap-fit ​​portion and the boss portion are adapted to cooperate to restrict and fix the boss portion.

8. The automotive seat slide rail motor with a built-in controller as described in claim 7, characterized in that: The guide groove narrows from the side away from the fixed groove to the side closer to the fixed groove and connects with the movable snap-fit ​​part. One end of the boss portion narrows from the other end. The guide groove, the fixed groove, and the boss portion are all knife-shaped structures.

9. A car seat slide rail motor with a built-in controller as described in claim 5, characterized in that: The vibration isolation pad is made of a flexible or elastic material. When the slide rail motor and the connecting seat are connected, the drive side of the slide rail motor is interference-fitted with the vibration isolation pad.

10. A car seat slide rail motor with a built-in controller as described in claim 5, characterized in that: The bracket assembly is adapted to connect a seat slide rail having a first slide rail and a second slide rail. A transmission device is provided between the first slide rail and the second slide rail. The transmission device is adapted to allow the first slide rail and the second slide rail to slide relative to each other. The slide rail motor is adapted to be fixed to the first slide rail via the bracket assembly and to cooperate with the transmission device.