Electric shoulder adjusting mechanism

Abstract

The utility model relates to the technical field of automobile seat shoulder adjustment, in particular to an electric shoulder adjusting mechanism which comprises a frame body, a driving assembly and a control system. The frame body comprises a shoulder support and a bottom support, the shoulder support is rotationally connected to the bottom support, and the shoulder support is parallel to the first direction along the rotating axis of the bottom support; the driving assembly comprises a motor, a first rotating shaft and an angle adjuster, the first rotating shaft is parallel to the first direction, the first rotating shaft is arranged on one side of the bottom support, the first rotating shaft is rotationally connected to the bottom support and penetrates through the angle adjuster, the angle adjuster is directly or indirectly connected with the shoulder support, and a motor shell is directly or indirectly fixedly connected to the bottom support; a motor output shaft is connected to the first rotating shaft to provide a power source for rotation of the first rotating shaft; the motor is electrically connected with the control system. The seat backrest adjusting device has the effect of achieving light-weight automatic adjustment of the seat backrest.

Description

Technical Field

[0001] This application relates to the field of automotive seat shoulder adjustment technology, and in particular to an electric shoulder adjustment mechanism. Background Technology

[0002] Currently, automotive seat shoulder adjustment technology is mainly divided into two categories: manual mechanical and electric. With increasing consumer demand for seat comfort and intelligent features, the proportion of electric adjustment is rising year by year. Industry data shows that in 2023, the penetration rate of electric seat adjustment in high-end models reached 72%, with shoulder adjustment becoming a key area for differentiated competition due to its ergonomic support requirements. Traditional solutions often use gear transmission or linkage mechanisms, which have problems such as large space occupation and significant noise, limiting their application in compact seat designs.

[0003] Under relevant technologies, the parallel four-bar linkage mechanism can achieve multi-angle adjustment, but requires an additional 15-20mm of Z-axis space; the pneumatic adjustment solution has a fast response speed, but requires an air compressor unit, which increases the cost by more than 300%. Both of these mainstream solutions have the problem of being too large or too expensive, making it difficult to meet the design requirements of luxury brands for thin seats.

[0004] Regarding the aforementioned technologies, the transmission mechanism is quite thick, which affects the thin design of the seat back. The complex transmission chain leads to a large cumulative error. Therefore, there is an urgent need for a lightweight automatic adjustment device for the seat back. Utility Model Content

[0005] In order to achieve lightweight automatic adjustment of the seat back, this application provides an electric shoulder adjustment mechanism.

[0006] This application provides an electric shoulder adjustment mechanism, which adopts the following technical solution:

[0007] An electric shoulder adjustment mechanism, characterized in that it includes a frame and a drive assembly;

[0008] The frame includes a shoulder support and a bottom support, the shoulder support is rotatably connected to the bottom support, and the shoulder support is parallel to a first direction along the rotation axis of the bottom support;

[0009] The drive assembly includes a motor, a first rotating shaft, and an angle adjuster. The first rotating shaft is parallel to a first direction and is located on one side of the bottom bracket. The first rotating shaft is rotatably connected to the bottom bracket. The first rotating shaft passes through the angle adjuster, which is fixedly sleeved on the first rotating shaft. The angle adjuster is directly or indirectly connected to the shoulder bracket. The motor housing is directly or indirectly fixedly connected to the bottom bracket. The motor output shaft is connected to the first rotating shaft to provide a power source for the rotation of the first rotating shaft.

[0010] The motor is electrically connected to the control system.

[0011] By adopting the above technical solution, and by setting up a frame and a drive assembly, the motor drives the first rotating shaft to rotate, which in turn drives the angle adjuster to rotate. The angle adjuster further drives the shoulder support to rotate along the bottom support. When the shoulder support rotates to a certain position, there is an angle between the shoulder support and the bottom support. When the shoulder support rotates towards the side closer to the bottom support, the angle between the shoulder support and the bottom support gradually decreases. When the shoulder support rotates towards the side farther from the bottom support, the angle between the shoulder support and the bottom support gradually increases. Thus, the rotation of the shoulder support is achieved by the motor. The structure is simple, adaptable to the design requirements, and realizes intelligent angle adjustment of the shoulder support.

[0012] Optionally, the frame further includes a first support plate, which is disposed on one side of the shoulder bracket, rotatably connected to the bottom bracket, and fixedly connected to the shoulder bracket.

[0013] By adopting the above technical solution, the first support plate is set up to connect the shoulder support and the bottom support.

[0014] Optionally, a second rotating shaft is provided between the first support plate and the bottom bracket. The second rotating shaft is parallel to the first rotating shaft and coincides with the central axis of the first rotating shaft. The second rotating shaft is fixedly connected to the bottom bracket, and the first support plate is sleeved on the second rotating shaft and rotatably connected to the second rotating shaft.

[0015] By adopting the above technical solution, since the first rotating shaft is located on one side of the bottom support, in order to further enable the other side of the shoulder support to rotate smoothly along the bottom support, a second rotating shaft is provided between the first support plate and the bottom support. The first support plate rotates along the second rotating shaft, which enables the other side of the shoulder support to rotate smoothly.

[0016] Optionally, the frame further includes a second support plate, which is located on the side of the bottom bracket away from the first support plate. The second support plate is fixedly connected to the shoulder bracket and is also connected to the angle adjuster.

[0017] By adopting the above technical solution and setting a second support plate to connect the angle adjuster to the shoulder bracket, the stability of the angle adjuster can be improved.

[0018] Optionally, the angle adjuster is fixedly connected to a plurality of positioning blocks, and the second support plate is provided with a plurality of positioning holes for accommodating the positioning blocks, and the positioning blocks are inserted into the positioning holes.

[0019] By adopting the above technical solution, the shoulder bracket and the angle adjuster are fixed through the insertion and cooperation of the positioning block and the positioning hole.

[0020] Optionally, it also includes a limiting bolt, wherein the second support plate has a limiting hole through it along the first direction, the limiting bolt is parallel to the first rotating shaft, one end of the limiting bolt is fixedly connected to the bottom bracket, and the other end passes through the limiting hole, the diameter of the limiting hole is larger than the outer diameter of the limiting bolt.

[0021] By adopting the above technical solution, in order to further limit the rotation of the shoulder support along the bottom support, a limiting bolt is set. When the second support plate rotates, the limiting bolt limits the rotation of the second support plate, thereby limiting the maximum adjustment angle of the shoulder support.

[0022] Optionally, a connecting plate is fixedly connected to one end of the first support plate away from the shoulder bracket, an elastic element is fixedly connected to the connecting plate, and the other end of the elastic element is fixedly connected to the side wall of the bottom bracket, with the elastic element being inclined.

[0023] By adopting the above technical solution and setting up an elastic element, when the shoulder support rotates away from the bottom support, the elastic element is stretched and stores energy through elastic deformation. When the shoulder support is adjusted to the correct position, the elastic element maintains the dynamic balance between the shoulder support and the angle adjuster through tension, preventing the shoulder support from accidentally shifting due to vibration or personnel leaning on it. When the shoulder support rotates towards the bottom support, the elastic element releases energy, assisting the shoulder support to quickly return to its initial position.

[0024] Optionally, the drive assembly further includes a first bevel gear, a second bevel gear, and a third rotating shaft. The motor output shaft is parallel to a second direction, and the second direction is perpendicular to the first direction. The first bevel gear is fixedly sleeved on the motor output shaft. The third rotating shaft is parallel to the first rotating shaft and coaxially fixedly connected to the first rotating shaft. The second bevel gear is coaxially fixedly sleeved on the third rotating shaft, and the second bevel gear meshes with the first bevel gear.

[0025] By adopting the above technical solution, the motor drives the first bevel gear, the second bevel gear and the third rotating shaft to rotate, which in turn drives the first rotating shaft to rotate, and drives the shoulder support to rotate through the angle adjuster.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. This application achieves intelligent angle adjustment of the shoulder support by setting up a drive component and frame and using a motor to drive the rotation of the shoulder support. The structure is simple, adaptable to the shape requirements, and realizes the rotation of the shoulder support.

[0028] 2. This application uses a limiting bolt to limit the rotation of the shoulder support;

[0029] 3. This application incorporates an elastic element that maintains dynamic balance between the shoulder support and the angle adjuster through tension, preventing accidental displacement of the shoulder support due to vibration or personnel leaning on it. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an electric shoulder adjustment mechanism according to this application;

[0031] Figure 2 This is a schematic diagram of the structure of the first rotating shaft and the angle adjuster in this application;

[0032] Figure 3 This is a structural schematic diagram of the first support plate, shoulder bracket, and bottom bracket of this application;

[0033] Figure 4 This is a structural schematic diagram of the second support plate and shoulder bracket of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the driver component in this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Shoulder support; 12. Bottom support; 121. Top wall; 122. Bottom wall; 13. First support plate; 131. Connecting plate; 132. Elastic element; 14. Second rotating shaft; 15. Second support plate; 151. Positioning hole; 152. Limiting hole; 16. Third support plate; 2. Drive assembly; 21. Motor; 22. First rotating shaft; 23. Angle adjuster; 231. Positioning block; 24. First bevel gear; 25. Second bevel gear; 26. Third rotating shaft; 27. Mounting base; 3. Limiting bolt. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0037] This application discloses an electric shoulder adjustment mechanism. (See also...) Figure 1The electric shoulder adjustment mechanism includes a frame 1 and a drive assembly 2. The frame 1 includes a shoulder support 11 and a bottom support 12. The shoulder support 11 is rotatably connected to the bottom support 12. The shoulder support 11 is parallel to a first direction along the rotation axis of the bottom support 12. When the shoulder support 11 rotates to a certain position, there is an angle between the shoulder support 11 and the bottom support 12. When the shoulder support 11 rotates towards the side closer to the bottom support 12, the angle between the shoulder support 11 and the bottom support 12 gradually decreases. When the shoulder support 11 rotates away from the bottom support 12, the angle between the shoulder support 11 and the bottom support 12 gradually increases. The drive assembly 2 includes a motor 21 and a... A first rotating shaft 22 and an angle adjuster 23 are provided. The first rotating shaft 22 is parallel to the first direction and is located on one side of the bottom support 12. The first rotating shaft 22 is rotatably connected to the bottom support 12. The first rotating shaft 22 passes through the angle adjuster 23 and is fixedly sleeved on the first rotating shaft 22. The angle adjuster 23 is directly or indirectly connected to the shoulder support 11. The housing of the motor 21 is directly or indirectly fixedly connected to the bottom support 12. The output shaft of the motor 21 is connected to the first rotating shaft 22 to provide a power source for the rotation of the first rotating shaft 22. The motor 21 drives the first rotating shaft 22 to rotate, which in turn drives the angle adjuster 23 to rotate. The angle adjuster 23 further drives the shoulder support 11 to rotate along the bottom support 12.

[0038] Reference Figure 2 It should be noted that the angle adjuster 23 is an electric angle adjuster 23, which is existing technology in this field, and its specific structure will not be described in detail; the motor 21 is a backrest motor 21, which is a precision electromechanical integrated design, realizing convenient adjustment of the seat back, improved comfort and safety redundancy protection.

[0039] Reference Figure 1 A seat (not shown in the figure) and a backrest (not shown in the figure) need to be fitted on the outside of the bottom support 12 and the shoulder support 11. A control system (not shown in the figure) is installed on the side wall of the seat. The control system is electrically connected to the motor 21. There are buttons on the control system panel. When a person presses a button, the control system transmits a signal to the motor 21. The motor 21 drives the first rotating shaft 22 to rotate, which in turn drives the shoulder support 11 to rotate along the bottom support 12.

[0040] Reference Figure 3Since the first pivot 22 is located on one side of the bottom support 12, in order to further enable the other side of the shoulder support 11 to rotate along the bottom support 12, the frame 1 also includes a first support plate 13 and a second pivot 14. The first support plate 13 is located on the side of the shoulder support 11 away from the first pivot 22. The first support plate 13 is rotatably connected to the bottom support 12 and fixedly connected to the shoulder support 11. In order to enable the first support plate 13 to rotate, a second pivot 14 is provided between the first support plate 13 and the bottom support 12. The second pivot 14 is parallel to the first pivot 22 and coincides with the central axis of the first pivot 22. One end of the second pivot 14 is fixedly connected to the bottom support 12, and the other end is fitted with the first support plate 13. The first support plate 13 is rotatably connected to the second pivot 14. By setting the first support plate 13 and the second pivot 14, the other side of the shoulder support 11 can rotate smoothly.

[0041] Reference Figure 4 In order to connect the angle adjuster 23 to the shoulder bracket 11, the frame 1 also includes a second support plate 15. The second support plate 15 is located on the side of the bottom bracket 12 away from the first support plate 13. The second support plate 15 is fixedly connected to the shoulder bracket 11 and connected to the angle adjuster 23.

[0042] Reference Figure 4 Specifically, the connection between the second support plate 15 and the angle adjuster 23 is as follows: multiple positioning blocks 231 are fixedly connected to the side of the angle adjuster 23 near the second support plate 15. Multiple positioning holes 151 for accommodating the positioning blocks 231 are opened through the second support plate 15. The positioning blocks 231 are inserted into the positioning holes 151. The fixing of the shoulder bracket 11 and the angle adjuster 23 is achieved by the insertion and cooperation of the positioning blocks 231 and the positioning holes 151.

[0043] Reference Figure 4 and Figure 5 To further limit the rotation of the shoulder support 11 along the bottom support 12, the electric shoulder adjustment mechanism also includes a limiting bolt 3. The second support plate 15 has a limiting hole 152 extending through it in the first direction. The limiting bolt 3 is parallel to the first rotating shaft 22. One end of the limiting bolt 3 is fixedly connected to the bottom support 12, and the other end passes through the limiting hole 152. The diameter of the limiting hole 152 is larger than the outer diameter of the limiting bolt 3, so that when the second support plate 15 rotates, the limiting bolt 3 limits the rotation of the second support plate 15. To protect the limiting bolt 3, a third support plate 16 is provided on the side of the second support plate 15 away from the angle adjuster 23. The end of the limiting bolt 3 away from the bottom support 12 is fixedly connected to the third support plate 16, and the first rotating shaft 22 passes through the third support plate 16. The third support plate 16 protects and fixes the limiting bolt 3.

[0044] Reference Figure 5To further improve the stability of the shoulder support 11 during angle adjustment, a connecting plate 131 is fixedly connected to the end of the first support plate 13 away from the shoulder support 11. One side of the bottom support 12 is a top wall 121, and the other side is a bottom wall 122. The connecting plate 131 is located on the side of the first support plate 13 near the top wall 121 of the bottom frame. An elastic element 132 is fixedly connected to the connecting plate 131, and the other end of the elastic element 132 is fixedly connected to the side of the bottom support 12 near the bottom wall 122. That is, the elastic element 132 is inclined. In this embodiment, the elastic element... Component 132 is a tension spring. When the shoulder support 11 rotates away from the bottom support 12, the elastic component 132 is stretched. The elastic component 132 stores energy through elastic deformation. When the shoulder support 11 is adjusted to the correct position, the elastic component 132 maintains the dynamic balance between the shoulder support 11 and the angle adjuster 23 through tension, preventing the shoulder support 11 from accidentally shifting due to vibration or personnel leaning on it. When the shoulder support 11 rotates towards the bottom support 12, the elastic component 132 releases energy, assisting the shoulder support 11 to quickly return to its initial position.

[0045] Reference Figure 5 In order to drive the first rotating shaft 22 to rotate, the drive assembly 2 also includes a first bevel gear 24, a second bevel gear 25 and a third rotating shaft 26. The output shaft of the motor 21 is parallel to the second direction and the second direction is perpendicular to the first direction. The motor 21 is fixedly connected to the bottom bracket 12 through the mounting plate. The first bevel gear 24 is fixedly sleeved on the output shaft of the motor 21. The third rotating shaft 26 is parallel to the first rotating shaft 22 and is coaxially fixedly connected to the first rotating shaft 22. The second bevel gear 25 is coaxially fixedly sleeved on the third rotating shaft 26. The second bevel gear 25 and the first bevel gear 24 mesh. The motor 21 drives the first bevel gear 24, the second bevel gear 25 and the third rotating shaft 26 to rotate, which further drives the first rotating shaft 22 to rotate, and drives the shoulder bracket 11 to rotate through the angle adjuster 23.

[0046] The implementation principle of an electric shoulder adjustment mechanism in this application embodiment is as follows: When it is necessary to adjust the angle of the shoulder support 11, press the button on the seat sleeved on the outside of the bottom support 12, and the motor 21 is started by the control system. The motor 21 drives the first rotating shaft 22 to rotate through the first bevel gear 24, the second bevel gear 25 and the third rotating shaft 26, which further drives the angle adjuster 23 to rotate, thereby driving the shoulder support 11 to rotate along the bottom support 12 through the second support plate 15.

[0047] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electrically powered shoulder adjustment mechanism characterized by: It includes a frame (1), a drive assembly (2), and a control system; The frame (1) includes a shoulder support (11) and a bottom support (12). The shoulder support (11) is rotatably connected to the bottom support (12). The shoulder support (11) is parallel to the first direction along the rotation axis of the bottom support (12). The drive assembly (2) includes a motor (21), a first rotating shaft (22), and an angle adjuster (23). The first rotating shaft (22) is parallel to a first direction and is located on one side of the bottom bracket (12). The first rotating shaft (22) is rotatably connected to the bottom bracket (12). The first rotating shaft (22) passes through the angle adjuster (23). The angle adjuster (23) is fixedly sleeved on the first rotating shaft (22). The angle adjuster (23) is directly or indirectly connected to the shoulder bracket (11). The housing of the motor (21) is directly or indirectly fixedly connected to the bottom bracket (12). The output shaft of the motor (21) is connected to the first rotating shaft (22) to provide a power source for the rotation of the first rotating shaft (22). The motor (21) is electrically connected to the control system.

2. An electrically powered shoulder adjustment mechanism according to claim 1, wherein: The frame (1) also includes a first support plate (13), which is located on one side of the shoulder support (11). The first support plate (13) is rotatably connected to the bottom support (12) and fixedly connected to the shoulder support (11).

3. An electrically powered shoulder adjustment mechanism according to claim 2, wherein: A second rotating shaft (14) is provided between the first support plate (13) and the bottom bracket (12). The second rotating shaft (14) is parallel to the first rotating shaft (22), and the central axis of the second rotating shaft (14) coincides with that of the first rotating shaft (22). The second rotating shaft (14) is fixedly connected to the bottom bracket (12). The first support plate (13) is sleeved on the second rotating shaft (14) and rotatably connected to the second rotating shaft (14).

4. The electrically powered shoulder adjustment mechanism of claim 2, wherein: The frame (1) also includes a second support plate (15), which is located on the side of the bottom bracket (12) away from the first support plate (13). The second support plate (15) is fixedly connected to the shoulder bracket (11) and is also connected to the angle adjuster (23).

5. An electrically powered shoulder adjustment mechanism according to claim 4, wherein: The angle adjuster (23) is fixedly connected to a plurality of positioning blocks (231), and the second support plate (15) is provided with a plurality of positioning holes (151) for accommodating the positioning blocks (231), and the positioning blocks (231) are inserted into the positioning holes (151).

6. An electrically powered shoulder adjustment mechanism according to claim 4, wherein: It also includes a limiting bolt (3), and the second support plate (15) has a limiting hole (152) through it along the first direction. The limiting bolt (3) is parallel to the first rotating shaft (22). One end of the limiting bolt (3) is fixedly connected to the bottom bracket (12), and the other end passes through the limiting hole (152). The diameter of the limiting hole (152) is larger than the outer diameter of the limiting bolt (3).

7. The motorized shoulder adjustment mechanism of claim 2, wherein: The first support plate (13) is fixedly connected to a connecting plate (131) at one end away from the shoulder bracket (11). An elastic element (132) is fixedly connected to the connecting plate (131). The other end of the elastic element (132) is fixedly connected to the side wall of the bottom bracket (12). The elastic element (132) is inclined.

8. An electrically powered shoulder adjustment mechanism according to any one of claims 1-7, characterized in that: The drive assembly (2) further includes a first bevel gear (24), a second bevel gear (25), and a third rotating shaft (26). The output shaft of the motor (21) is parallel to a second direction, and the second direction is perpendicular to the first direction. The first bevel gear (24) is fixedly sleeved on the output shaft of the motor (21). The third rotating shaft (26) is parallel to the first rotating shaft (22) and coaxially fixedly connected to the first rotating shaft (22). The second bevel gear (25) is coaxially fixedly sleeved on the third rotating shaft (26). The second bevel gear (25) and the first bevel gear (24) mesh.

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