A fixing support for the rotating shaft of an electric drive motor for electrically adjusting the backrest of a rear seat in a vehicle

By designing a fixed bracket, including a fixing plate, bushing, and limiting plate, the problem of unstable motor operation was solved, achieving stable connection and torsional resistance of the motor, eliminating vibration and abnormal noise, and improving the user experience.

CN224545765UActive Publication Date: 2026-07-24SHENYANG ZHONGRUI MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG ZHONGRUI MACHINERY CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional motor mounting methods result in unstable motor operation, causing vibration and abnormal noise, which affects the user experience.

Method used

The design adopts a fixed bracket, including a fixed plate, a fixed part, a bushing, a limiting plate, and a connecting plate. It is connected by a flange structure and bolts to ensure smooth operation of the motor shaft and enhance structural stability and torsional resistance.

Benefits of technology

It effectively eliminates vibration and abnormal noise during motor operation, improves the connection stability and load-bearing capacity between the motor and the seat structure, and ensures the coaxiality and guiding accuracy of the motor output shaft.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of placing device, concretely to a kind of automobile rear seat backrest electric adjustment driving motor rotating shaft fixed support, including fixed plate and fixedly installed fixed portion on fixed plate, the fixed portion includes fixed support, bushing is fixedly installed in fixed portion, bushing keeps motor rotating shaft operation steady. In the utility model, by installing fixed support in the specified position of fixed plate, bushing is fixedly installed in the mounting hole of fixed support, by riveting treatment to bushing, further fixed support and seat structure are reinforced connection, improve overall carrying capacity, No. One limit plate, No. Two limit plate and L-shaped No. Three limit plate are all formed into space limiting structure by downward flanging, prevent fixed support from deviating or misplacing during installation process, also enhanced the torsional strength and stability of fixed support under stress state, fixed support is formed into by high-strength steel plate S420MC, T2.0 flanging, with good strength and rigidity and light weight.
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Description

Technical Field

[0001] This utility model relates to the field of fixed brackets, and in particular to a fixed bracket for the shaft of an electric adjustment drive motor for the rear seat back of a car. Background Technology

[0002] In modern automotive design, the power-adjustable rear seatbacks are increasingly favored by consumers. This feature not only enhances passenger comfort but also strengthens the vehicle's technological and luxurious feel. The motor is the core power source for adjusting the seatback angle, providing torque-driven gears and linkage mechanisms to achieve stepless adjustment of the backrest angle. It supports bidirectional forward and backward rotation to meet the needs of passengers of different body types. Traditional motor mounting methods often suffer from complex structures, heavy weight, and poor stability, leading to unstable motor operation, vibration, and abnormal noise, affecting the user experience. The motor shaft mounting bracket ensures precise alignment between the motor output shaft and the transmission mechanism, avoiding uneven load wear and suppressing the transmission of high-frequency motor vibration to the seat frame.

[0003] When fixing the motor, there is a problem that the motor runs unevenly, causing vibration and abnormal noise. In view of this, a fixing bracket for the shaft of the electric adjustment drive motor of the rear seat back of a car is provided. Utility Model Content

[0004] The main purpose of this utility model is to provide a fixing bracket for the shaft of the electric adjustment drive motor of the rear seat back of a car, so as to solve the problem of unstable motor operation, vibration and abnormal noise when fixing the motor in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a mounting bracket for the shaft of an electric adjustment drive motor for a rear seat backrest of an automobile is provided, comprising a mounting plate and a mounting part fixedly mounted on the mounting plate. The mounting part includes a mounting bracket and further includes a bushing, which is fixedly mounted inside the mounting part and keeps the motor shaft running smoothly.

[0006] Furthermore, the fixed bracket includes a first limiting plate, which is located on one side of the fixed bracket and is formed by a downward-flipped edge.

[0007] Furthermore, a mounting plate is fixedly installed on one side of the fixed bracket, and a fixing hole No. 1 is formed through the upper surface of the mounting plate.

[0008] Furthermore, a second limiting plate is fixedly installed at the connection between the fixed bracket and the mounting plate. The second limiting plate is formed by a downward-flipped edge.

[0009] Furthermore, a connecting plate is fixedly installed at one end of the fixed bracket. The connecting plate is formed by an upwardly folded edge, and a second fixing hole is opened through the upper surface of the connecting plate.

[0010] Furthermore, a third limiting plate is fixedly installed on one side of the connecting plate. The third limiting plate is formed by downward flange and has an L-shaped structure.

[0011] Furthermore, the upper surface of the fixed bracket has a through-hole in the middle, and the bushing is fixedly installed in the mounting hole. The bushing has an arc wall with a mounting groove, and the side wall of the mounting hole is located in the mounting groove.

[0012] Furthermore, the fixing bracket is made of metal.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this invention, a fixed bracket is installed at a designated position on a fixed plate, and a bushing is fixedly installed in the mounting hole of the fixed bracket. The bushing is riveted to ensure that the mounting groove on its outer wall fits tightly against the side wall of the mounting hole, forming a secure connection and preventing the bushing from loosening. Simultaneously, the coaxiality of its inner hole is maintained, providing stable guidance for the motor shaft. The fixed bracket includes a first limiting plate, a second limiting plate, and a third limiting plate. The first, second, and third limiting plates have a flanged structure to enhance overall structural stability and prevent installation misalignment. The motor output shaft, fixedly mounted on the fixed plate, passes through the center hole of the bushing and connects to the subsequent transmission mechanism. It supports the motor output shaft, preventing swaying or vibration caused by radial force. Bolts are used to pass through the first and second fixing holes to connect with the seat frame or other structural components, completing the fixation of the fixed bracket and further strengthening the connection between the fixed bracket and the seat structure, improving the overall load-bearing capacity. The first, second, and L-shaped third limiting plates are all formed by downward flanging, forming a spatial limiting structure to prevent the fixed bracket from shifting or misaligning during installation. It also enhances the torsional resistance and stability of the fixed bracket under stress. The fixed bracket is made of high-strength S420MC steel plate, T2.0, which has good strength and rigidity and is lightweight. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the fixed bracket in a preferred embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the bottom structure of the fixed bracket in a preferred embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the fixing part structure in a preferred embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the bushing structure in a preferred embodiment of the present invention.

[0019] Figure label:

[0020] 1. Fixing part; 11. Fixing bracket; 12. First limiting plate; 13. Mounting plate; 14. Second limiting plate; 15. Connecting plate; 16. Third limiting plate; 17. Mounting hole; 131. First fixing hole; 151. Second fixing hole;

[0021] 2. Bushing; 21. Mounting slot. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0023] This embodiment provides a fixing bracket for the drive motor shaft of an electric adjustment drive motor for a rear seat backrest of an automobile, including a fixing plate and a fixing part 1 fixedly mounted on the fixing plate. The fixing part 1 includes a fixing bracket 11 and a bushing 2. The bushing 2 is fixedly mounted inside the fixing part 1. The bushing 2 keeps the motor shaft running smoothly. A motor is fixedly mounted on the fixing plate. The motor output shaft passes through the bushing 2. The bushing 2 keeps the motor shaft running smoothly and eliminates vibration and abnormal noise.

[0024] like Figure 1 , Figure 2 As shown, the fixed bracket 11 includes a first limiting plate 12, which is located on one side of the fixed bracket 11 and is formed by a downwardly turned edge.

[0025] like Figure 1 , Figure 2 As shown, a mounting plate 13 is fixedly installed on one side of the fixed bracket 11, and a fixing hole 131 is opened through the upper surface of the mounting plate 13;

[0026] like Figure 1 , Figure 2 , Figure 3 As shown, a second limiting plate 14 is fixedly installed at the connection between the fixed bracket 11 and the mounting plate 13. The second limiting plate 14 is formed by a downward-flipped edge.

[0027] like Figure 1 As shown, a connecting plate 15 is fixedly installed at one end of the fixed bracket 11. The connecting plate 15 is formed by an upwardly folded edge. A second fixing hole 151 is opened through the upper surface of the connecting plate 15. Bolts are threaded into both the first fixing hole 131 and the second fixing hole 151. The bolts pass through the first fixing hole 131 and the second fixing hole 151 and are connected to the seat frame or other structural components to complete the fixation of the fixed bracket 11, further strengthen the connection between the fixed bracket 11 and the seat structure, and improve the overall load-bearing capacity.

[0028] like Figure 1As shown, a third limiting plate 16 is fixedly installed on one side of the connecting plate 15. The third limiting plate 16 is formed by downward flange and has an L-shaped structure. The fixed bracket 11 includes a first limiting plate 12, a second limiting plate 14 and a third limiting plate 16. The first limiting plate 12, the second limiting plate 14 and the third limiting plate 16 are flanged structures to enhance the overall structural stability and prevent installation deviation. The first limiting plate 12, the second limiting plate 14 and the L-shaped third limiting plate 16 are all formed by downward flange to form a spatial limiting structure to prevent the fixed bracket 11 from shifting or misaligning during installation. At the same time, it also enhances the torsional resistance and stability of the fixed bracket 11 under stress.

[0029] like Figure 1 , Figure 3 As shown, a mounting hole 17 is provided through the middle of the upper surface of the fixed bracket 11. The bushing 2 is fixedly installed in the mounting hole 17. The bushing 2 has an arc wall with a mounting groove 21. The side wall of the mounting hole 17 is located in the mounting groove 21. The bushing 2 is fixedly installed in the mounting hole 17 of the fixed bracket 11. By riveting the bushing 2, the mounting groove 21 on its outer wall is tightly fitted with the side wall of the mounting hole 17 to form a firm connection, ensuring that the bushing will not loosen. At the same time, it maintains the coaxiality of its inner hole, providing a stable guide for the motor shaft. The motor output shaft, which is fixedly installed on the fixed plate, passes through the center hole of the bushing 2 and connects to the subsequent transmission mechanism. The bushing 2 supports the motor output shaft and avoids swaying or vibration caused by radial force.

[0030] like Figure 1 As shown, the fixing bracket 11 is made of metal. The fixing bracket 11 is preferably made of high-strength steel plate S420MC, T2.0. The fixing bracket 11 is formed by flanging of high-strength steel plate S420MC, T2.0, which has good strength and rigidity and is lightweight.

[0031] In practical use, the fixed bracket 11 is installed at a designated position on the fixed plate, and the bushing 2 is fixedly installed in the mounting hole 17 of the fixed bracket 11. The bushing 2 is riveted to ensure that the mounting groove 21 on its outer wall fits tightly against the side wall of the mounting hole 17, forming a firm connection and ensuring that the bushing will not loosen. At the same time, it maintains the coaxiality of its inner hole, providing stable guidance for the motor shaft. The fixed bracket 11 includes a first limiting plate 12, a second limiting plate 14, and a third limiting plate 16. The first limiting plate 12, the second limiting plate 14, and the third limiting plate 16 have a flanged structure to enhance the overall structural stability and prevent installation misalignment. The motor output shaft, fixedly installed on the fixed plate, passes through the center hole of the bushing 2 and connects to the subsequent transmission mechanism. Bushing 2 supports the motor output shaft, preventing swaying or vibration caused by radial force. Bolts are used to pass through fixing holes 131 and 151 to connect with the seat frame or other structural components, completing the fixation of the fixed bracket 11 and further strengthening the connection between the fixed bracket 11 and the seat structure, improving the overall load-bearing capacity. The first limiting plate 12, the second limiting plate 14, and the L-shaped third limiting plate 16 are all formed by downward flanging, forming a spatial limiting structure to prevent the fixed bracket 11 from shifting or misaligning during installation. At the same time, it also enhances the torsional resistance and stability of the fixed bracket 11 under stress. The fixed bracket 11 is made of high-strength steel plate S420MC, T2.0, which has good strength and rigidity and is lightweight.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A mounting bracket for the shaft of an electric adjustment drive motor for a rear seat backrest of an automobile, comprising a mounting plate and a fixing part (1) fixedly mounted on the mounting plate, characterized in that, The fixing part (1) includes a fixing bracket (11), and further includes: Bushing (2) is fixedly installed inside the fixing part (1) to keep the motor shaft running smoothly.

2. The automobile rear seat backrest electric adjustment drive motor shaft fixing bracket according to claim 1, characterized in that, The fixed bracket (11) includes a first limiting plate (12), which is located on one side of the fixed bracket (11) and is formed by downward flange.

3. The automobile rear seat backrest electric adjustment drive motor shaft fixing bracket according to claim 1, characterized in that, A mounting plate (13) is fixedly installed on one side of the fixed bracket (11), and a fixing hole (131) is opened through the upper surface of the mounting plate (13).

4. The mounting bracket for the electric adjustment drive motor shaft of the rear seat backrest of an automobile as described in claim 1, characterized in that, A second limiting plate (14) is fixedly installed at the connection between the fixed bracket (11) and the mounting plate (13). The second limiting plate (14) is formed by downward flange.

5. The mounting bracket for the electric adjustment drive motor shaft of the rear seat backrest of an automobile as described in claim 1, characterized in that, One end of the fixed bracket (11) is fixedly installed with a connecting plate (15). The connecting plate (15) is formed by an upwardly folded edge, and a second fixing hole (151) is opened through the upper surface of the connecting plate (15).

6. The mounting bracket for the electric adjustment drive motor shaft of the rear seat backrest of an automobile as described in claim 5, characterized in that, The connecting plate (15) is fixedly installed with a third limiting plate (16) on one side. The third limiting plate (16) is formed by downward flange and has an L-shaped structure.

7. The mounting bracket for the electric adjustment drive motor shaft of the rear seat backrest of an automobile as described in claim 1, characterized in that, The fixed bracket (11) has a through hole (17) in the middle of its upper surface. The bushing (2) is fixedly installed in the mounting hole (17). The bushing (2) has an arc wall with a mounting groove (21). The side wall of the mounting hole (17) is located in the mounting groove (21).

8. The automobile rear seat backrest electric adjustment drive motor shaft fixing bracket according to claim 1, characterized in that, The fixed bracket (11) is made of metal.