Electric slide rail for car seat

Abstract

The utility model relates to an electric slide rail for car seat, including two lower slide rails, with the lower slide rail sliding connection's upper slide rail, the upper slide rail is provided with seat horizontal driver, seat horizontal driver cooperates with the lower slide rail, to realize the upper slide rail displacement, the upper slide rail is fixed with the buckle daughter board located seat horizontal driver top, the both ends of connecting plate are provided with the buckle female board of buckle daughter board joint cooperation respectively between two lower slide rails, be provided with motor on the connecting plate and seat horizontal driver plug -in cooperation transmission, the utility model has the advantages of convenient installation and use.

Description

Technical Field

[0001] This utility model belongs to the field of slide rail technology, specifically relating to an electric slide rail for automobile seats. Background Technology

[0002] In the automotive manufacturing industry, electric sliding rails, as core adjustment components of seat systems, have a significant impact on driving comfort and safety. Currently, automotive seat electric sliding rails typically consist of symmetrically arranged left and right rails, which are fixed together by a connecting plate, and a seat leveling actuator (HDM) is integrated into the rails. A drive motor connected to the HPD is mounted on the connecting plate, and the rotational motion of the motor is converted into linear sliding of the rails through a lead screw transmission mechanism, thereby achieving precise adjustment of the seat's fore-and-aft position.

[0003] In existing technologies, the left and right slide rails are generally directly fixed to the connecting plate using bolts. This structure has significant drawbacks in actual assembly: First, bolts need to be pre-installed after production to ensure the stability of the slide rail assembly during transportation; second, when the assembly arrives at the customer's site for final assembly, the pre-installed bolts must be removed, the motor bridge (drive module) installed, and then the bolts retightened to complete the final fixation. This process not only leads to cumbersome installation procedures and increased working time, but also may introduce problems such as bolt stripping, wear on the connecting surfaces, or inconsistent preload due to repeated disassembly and assembly, affecting the reliability of the connection and the smoothness of the slide rail movement. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an electric slide rail for automobile seats.

[0005] The technical solution of this utility model is as follows:

[0006] An electric slide rail for a car seat includes two lower slide rails and an upper slide rail slidably connected to the lower slide rails. The upper slide rail is equipped with a seat horizontal actuator, which cooperates with the lower slide rails to realize the displacement of the upper slide rail. A snap-on plate is fixed on the upper slide rail above the seat horizontal actuator. A connecting plate is provided between the two lower slide rails. Both ends of the connecting plate are respectively provided with snap-on female plates that engage with the snap-on plates. A motor that is inserted into the connecting plate and drives the seat horizontal actuator is provided.

[0007] Furthermore, the top of the snap-fit ​​mother plate is provided with a C-shaped groove to form a snap-fit ​​plate. The lower side of the snap-fit ​​plate is provided with a triangular part, and the right angle side of the triangular part is located on the side adjacent to the motor. The snap-fit ​​daughter plate is provided with a snap-fit ​​groove for the snap-fit ​​plate to be inserted.

[0008] Furthermore, the triangular portion can move left and right within the snap-fit ​​groove.

[0009] Furthermore, the upper slide rail and the lower slide rail are slidably connected by a retainer with ball bearings.

[0010] Furthermore, both the upper slide rail and the lower slide rail are provided with an arc-shaped portion and a straight portion, wherein the arc-shaped portion includes a first arc-shaped portion and a second arc-shaped portion, and the straight portion includes a second straight portion and a first straight portion, wherein each ball is in contact with and engages with one arc-shaped portion and one straight portion respectively.

[0011] Furthermore, two connecting seats are fixed inside the lower slide rail, and a lead screw is provided between the two connecting seats. The seat horizontal drive cooperates with the lead screw to realize the sliding drive of the upper slide rail.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The combination of the snap-on mother plate and the snap-on daughter plate of this utility model enables the quick installation of the connecting plate and the upper slide rail. Moreover, once the bolts are fixed before transportation, there is no need to remove and fix them again, ensuring the normal use of the slide rail. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the upper and lower track parts of this utility model;

[0016] Figure 3 This utility model Figure 1 Front view structural diagram;

[0017] Figure 4 This utility model Figure 3 A magnified structural diagram of part A;

[0018] Figure 5 This utility model Figure 3 A schematic diagram of the enlarged structure of part B;

[0019] Figure 6 This utility model Figure 1 A schematic diagram of the cage structure.

[0020] In the diagram, 1. Lower slide rail; 11. Connecting seat; 12. Lead screw; 13. First arc-shaped part; 14. First straight part; 2. Upper slide rail; 21. Second arc-shaped part; 22. Second straight part; 3. Snap-on mother plate; 4. Motor; 5. Connecting plate; 6. Snap-on daughter plate; 7. Stop; 8. Drive shaft; 9. Cage; 91. Ball bearing; 10. Seat leveling drive. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 6 As shown, an electric slide rail for a car seat includes two lower slide rails 1 and an upper slide rail 2 slidably connected to the lower slide rails 1. The upper slide rail 2 is fixed with a seat horizontal actuator 10 by bolts. The seat horizontal actuator 10 cooperates with the lower slide rails 1 to realize the displacement of the upper slide rail 2. The upper slide rail 2 is fixed with a snap-on plate 6 located above the seat horizontal actuator 10. A connecting plate 5 is provided between the two lower slide rails 1. The two ends of the connecting plate 5 are respectively fixed with snap-on female plates 3 that are engaged with the snap-on plates 6. A motor 4 is provided on the connecting plate 5 that is inserted and engaged with the seat horizontal actuator 10 for transmission.

[0023] In use, insert the buckle plate 6 into the buckle mother plate 3, and make the motor 4 and the seat horizontal driver 10 connect and cooperate to achieve splicing of the two upper slide rails 2 and the connecting plate 5. Then, fix the lower slide rail 1 in the installation position. When the upper slide rail 2 needs to move, the motor 4 and the seat horizontal driver 10 drive the upper slide rail 2 to move along the lower slide rail 1.

[0024] It should be noted that both ends of the connecting plate 5 are fixed with positioning cylinders, and the transmission shaft 8 is rotatably connected inside the positioning cylinders. The motor 4 is fixed to the transmission shaft 8, and the transmission shaft 8 and the seat horizontal driver 10 are connected by spline or polygonal transmission rod or other coaxial insertion transmission method.

[0025] In this embodiment, the top of the snap fastener mother plate 3 is provided with a C-shaped groove to form a snap fastener plate. The lower side of the snap fastener plate is provided with a triangular part and the right angle side of the triangular part is located on the side adjacent to the motor 4. The snap fastener daughter plate 6 is provided with a snap fastening groove for the snap fastener plate to be inserted.

[0026] The left and right length of the snap-fit ​​groove is greater than the left and right length of the triangular part, and there is a gap between the end of the snap-fit ​​plate 6 facing the motor 4 and the left and right side walls of the snap-fit ​​female buckle, so that the triangular part can move left and right in the snap-fit ​​groove.

[0027] When the lower slide rail 1 is in place, the positions of the upper slide rail 2 and the lower slide rail 1 are adjusted according to the possible left and right floating of the installation position, and the buckle plate 6 is displaced within the buckle mother plate 3, so that the upper slide rail 2 and the lower slide rail 1 can be adjusted left and right according to the installation position, thereby ensuring installation.

[0028] In this embodiment, the upper slide rail 2 and the lower slide rail 1 are slidably connected by a retainer 9 with ball bearings 91, and the two retainers 9 located on the same side of the upper slide rail 2 are integrated into one piece.

[0029] During use, the friction between the upper slide rail 2 and the lower slide rail 1 is reduced by the ball bearing 91 to ensure sliding, and the stability of the slide rail is increased by the integrated retainer 9 to reduce the noise caused by dragging during sliding.

[0030] In this embodiment, both the upper slide rail 2 and the lower slide rail 1 are provided with an arc-shaped portion and a straight portion. The arc-shaped portion includes a first arc-shaped portion 13 and a second arc-shaped portion 21, and the straight portion includes a second straight portion 22 and a first straight portion 14. Each ball bearing 91 is in contact with one arc-shaped portion and one straight portion respectively.

[0031] In use, the ball bearing 91 is fitted with both the upper slide rail 2 and the lower slide rail 1 using an arc part and a straight part, and the material is high-strength steel. The fit relationship of the arc-straight line-steel ball, combined with the deformation of the high-strength steel, can better eliminate gaps.

[0032] In this embodiment, two connecting seats 11 are fixed inside the lower slide rail 1, and a lead screw 12 is fixed between the two connecting seats 11. The seat horizontal driver 10 cooperates with the lead screw 12 to realize the sliding drive of the upper slide rail 2.

[0033] In this example, both ends of the lower slide rail 1 are integrally formed with stop points 7 that bend inward towards the lower slide rail 1. The stop points 7 are the stop points 7 of the cage 9. The integrated cage 9 stop points are formed by mold, resulting in better consistency.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric slide rail for a car seat, comprising two lower slide rails and an upper slide rail slidably connected to the lower slide rails, characterized in that: The upper slide rail is equipped with a seat horizontal driver, which cooperates with the lower slide rail to realize the displacement of the upper slide rail. The upper slide rail is fixed with a buckle plate located above the seat horizontal driver. A connecting plate is provided between the two lower slide rails. Both ends of the connecting plate are respectively provided with buckle female plates that are engaged with the buckle plates. A motor that is inserted and engaged with the seat horizontal driver for transmission is provided on the connecting plate.

2. The electric slide rail for automobile seats according to claim 1, characterized in that: The top of the snap fastener mother plate is provided with a C-shaped groove to form a snap fastening plate. The lower side of the snap fastening plate is provided with a triangular part, and the right angle side of the triangular part is located on the side adjacent to the motor. The snap fastener daughter plate is provided with a snap fastening groove for the snap fastening plate to be inserted.

3. The electric slide rail for an automobile seat according to claim 2, characterized in that: The triangular part can move left and right within the snap-fit ​​groove.

4. The electric slide rail for a car seat according to claim 1, characterized in that: The upper slide rail and the lower slide rail are slidably connected by a retainer with ball bearings.

5. The electric slide rail for an automobile seat according to claim 4, characterized in that: Both the upper slide rail and the lower slide rail are provided with arc-shaped parts and straight parts. The arc-shaped parts include a first arc-shaped part and a second arc-shaped part, and the straight parts include a second straight part and a first straight part. Each ball is in contact with one arc-shaped part and one straight part respectively.

6. The electric slide rail for an automobile seat according to claim 1, characterized in that: The lower slide rail has two fixed connecting seats inside, and a lead screw is provided between the two connecting seats. The seat horizontal drive cooperates with the lead screw to realize the sliding drive of the upper slide rail.

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