Seat reclining motor, motor bracket and automobile

Abstract

The application discloses a seat inclination adjusting motor, a motor support and a car. The seat inclination adjusting motor comprises a motor shell (1) and a motor support (2), the motor support (2) comprises a plastic part (21) and a metal part (22), the plastic part (21) and the metal part (22) are fixed to each other, the motor shell (1) is rotatably supported in the plastic part (21), and the metal part (22) is used for mounting the motor shell (1). The seat inclination adjusting motor disclosed by the application can simplify development of the motor support.

Description

Technical Field

[0001] This application relates to the field of electric motors, and more specifically, to a seat tilt adjustment motor, a motor bracket, and an automobile with such a seat tilt adjustment motor. Background Technology

[0002] With the rapid development of the automotive industry, consumers' demands for the driving and riding experience are constantly increasing. During long drives or rides, uncomfortable seat angles can easily lead to fatigue, back pain, and affect the riding experience and even driving safety. In cars equipped with seat angle adjustment motors, users can precisely adjust the seat angle with a simple operation.

[0003] The seat tilt adjustment motor is mounted into the seat frame using a plastic bracket. To adapt to new types of seat frames, it is often necessary to redevelop the mounting interface for the plastic bracket. This unique design leads to poor adaptability, waste of molds, and long development cycles. Summary of the Invention

[0004] The main technical problem this application aims to solve is to simplify the development of motor brackets.

[0005] To solve the above-mentioned technical problems, this application provides a seat tilt adjustment motor, which includes a motor housing and a motor bracket. The motor bracket includes a plastic component and a metal component. The plastic component and the metal component are fixed to each other. The motor housing is rotatably supported in the plastic component. The metal component is used to mount the motor housing.

[0006] On the other hand, this application provides a motor bracket, which includes a plastic component and a metal component, wherein the plastic component and the metal component are fixed to each other, the plastic component is used to rotatably support the motor housing, and the metal component is used to mount the motor housing.

[0007] In another aspect, this application provides an automobile that includes the aforementioned seat tilt adjustment motor.

[0008] According to the technical solution of this application, the motor bracket includes a plastic component and a metal component. The plastic component is used to rotatably support the motor housing, and the metal component is used to mount the motor housing. For different types of seat frames, the plastic component remains unchanged, and only the metal component needs to be redeveloped, which can reduce mold waste and shorten the development cycle, thereby simplifying the development of the motor bracket. Attached Figure Description

[0009] The disclosure of this application is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Wherein:

[0010] Figure 1 The schematic diagram illustrates a seat tilt adjustment motor according to one embodiment of this application;

[0011] Figure 2 Schematic representation Figure 1 The plastic component of the seat tilt adjustment motor;

[0012] Figure 3 Schematic representation Figure 1 The metal component of the seat tilt adjustment motor. Detailed Implementation

[0013] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of this application.

[0014] According to one embodiment of this application, a seat tilt adjustment motor includes a motor housing and a motor bracket. The motor bracket includes a plastic component and a metal component. The plastic component can be a high-strength plastic, such as nylon and fiberglass. The plastic component is, for example, injection molded. The metal component can include high-strength steel or aluminum alloy. The metal component is, for example, made from sheet metal through processes such as stamping, bending, and welding. The plastic component and the metal component are fixed to each other, for example, by threaded fasteners. The motor housing is rotatably supported in the plastic component, that is, the motor housing itself or a component connected to it (e.g., the gearbox of the seat tilt adjustment motor) is supported in the plastic component and can rotate relative to the plastic component. The metal component is used to mount the motor housing, i.e., to mount the motor housing to the seat frame.

[0015] In the seat tilt adjustment motor according to this embodiment, the same plastic components can be used for different types of seat frames, requiring only the redevelopment of metal components. Compared to redeveloping the entire plastic frame, this solution is easier to process, has lower mold costs, and a shorter development cycle. Furthermore, using a metal frame to mount the motor housing to the seat frame increases the strength of the connection points and reduces the risk of breakage.

[0016] The seat tilt adjustment motor can be either a backrest tilt adjustment motor or a seat tilt adjustment motor. The seat tilt adjustment motor can be used in passenger vehicles. It is installed on the car's seat frame to adjust the seat tilt angle, allowing the seat to be adjusted to the angle desired by the occupant.

[0017] For example, when the seat tilt adjustment motor is used as the basin tilt adjustment motor, the basin tilt adjustment motor is mounted to the front linkage rod of the seat frame via the metal component. The basin tilt adjustment motor drives the first connecting end of the basin tilt adjustment bracket to rotate the basin tilt adjustment bracket around the central axis of the front linkage rod. During the rotation of the basin tilt adjustment bracket, the second connecting end of the basin tilt adjustment bracket drives the basin to rotate around the basin rotation center, thereby changing the tilt angle of the basin.

[0018] A seat tilt adjustment motor according to a specific embodiment of this application. Figures 1-3 As shown, the seat tilt adjustment motor 100 includes a gearbox 3, which includes a gearbox arc portion 31, formed, for example, by a gearbox housing. The gearbox 3 is rotatably supported in the plastic component 21 by means of the gearbox arc portion 31. Correspondingly, a receiving portion 214 is provided in the plastic component 21, which is at least partially circular in shape. This receiving portion cooperates with the gearbox arc portion 31 to support the gearbox 3 and guide its rotation.

[0019] The gearbox 3 contains a worm gear and a worm wheel. The worm gear is connected to the output shaft of the seat tilt adjustment motor, and meshes with the worm wheel, driving the worm wheel to rotate. For example, the gearbox 3 has support members at both ends of the worm wheel to limit its movement in the axial direction and to support and guide its rotation. Furthermore, the worm wheel cannot rotate relative to the gearbox 3 about an axis parallel to the output shaft of the seat tilt adjustment motor; that is, the lead screw 4 can rotate synchronously with the gearbox 3 relative to the plastic component 21.

[0020] Furthermore, the seat tilt adjustment motor includes a lead screw 4, and the worm gear also includes an internal thread. The lead screw 4 passes through the worm gear, and the internal thread of the worm gear meshes with the external thread of the lead screw 4. The worm gear drives the lead screw 4, enabling the lead screw 4 to be displaced relative to the gearbox 3 along the axial direction of the worm gear, and the lead screw 4 to rotate relative to the plastic component 21. Specifically, the lead screw 4 is capable of rotating relative to the plastic component 21 about an axis parallel to the output shaft of the seat tilt adjustment motor.

[0021] The lead screw 4 is used to output power to the seat tilt adjustment motor. Specifically, an output part 41 is provided at the end of the lead screw 4 for outputting power to the seat tilt adjustment motor. For example, the first connecting end of the seat tilt adjustment bracket of the seat tilt adjustment motor is fixedly connected to the mounting hole of the output part 41. The movement of the lead screw 4 drives the seat tilt adjustment bracket to rotate around the central axis of the front linkage rod, thereby changing the tilt angle of the seat.

[0022] The lead screw 4 passes through the plastic component 21, for example along... Figure 2 Through holes on both the left and right sides pass through the plastic component 21. A limiting part 211 is provided in the plastic component 21 to limit the displacement of the lead screw 4 relative to the plastic component 21 and / or to limit the rotation of the lead screw 4 relative to the plastic component 21, that is, to limit the magnitude of the displacement and the rotation angle of the lead screw 4, thereby ensuring that the lead screw 4 operates within its designed stroke. On the other hand, the limiting part 211 also at least partially limits the rotation of the gearbox 3 relative to the plastic component 21. When the lead screw 4 and the gearbox 3 rotate synchronously relative to the plastic component 21, the limiting part 211 also limits the rotation of the plastic component 21 relative to the gearbox 3.

[0023] For example, a pin is provided on the outer surface of the gearbox 3, and a linear guide groove is provided in the lead screw 4. An exemplary assembly process is as follows: First, rotate the lead screw 4 relative to the gearbox 3 so that the angle between them is the limit angle, at which point the pin aligns with the linear guide groove, which is, for example, parallel to the motor output shaft; then, push the lead screw 4 towards the gearbox 3 along the direction of the linear guide groove until the pin enters the rotary guide groove in the lead screw 4 from the linear guide groove. The rotary guide groove extends in a plane perpendicular to the linear guide groove, and the pin cooperates with the rotary guide groove to limit the displacement of the plastic component 21 and the gearbox 3 in the direction of the linear guide groove; then, rotate the lead screw 4 relative to the gearbox 3 so that they enter the working angle range of the working state, where the limit angle is outside the working angle; finally, screw the external thread of the lead screw 4 into the internal thread of the worm gear. The limiting part 211 restricts the rotation of the lead screw 4 relative to the plastic component 21, and also restricts the rotation of the plastic component 21 relative to the gearbox 3, so that the angle between the gearbox 3 and the plastic component 21 is always within the working angle range during operation, thus preventing them from reaching the limit angle and causing relative displacement in the direction of the straight guide groove.

[0024] The plastic component 21 is fixed together with the metal component 22. Alternatively, the metal component 22 may have a metal component hole 221, and the plastic component 21 may have a plastic component hole 212. The metal component hole 221 and the plastic component hole 212 mate with each other, and the metal component 22 and the plastic component 21 are fixed together by a threaded connector 23 passing through the metal component hole 221 and the plastic component hole 212. Alternatively, two or more mating metal component holes 221 and plastic component holes 212 may be provided, thereby forming multiple fixing points.

[0025] For example, the metal component 22 has portions located on both sides of the plastic component 21 (e.g., Figure 3 The connecting parts (front and back sides) are connected by a screw, which is passed through the metal part hole 221 and the plastic part hole 212 in the connecting part on one side in sequence to the threaded hole in the connecting part on the other side, and screwed into the threaded hole to form a fixing point.

[0026] The plastic component 21 can be designed as a single piece, such as... Figure 2 As shown. The metal component 22 can be designed as a separate unit, such as... Figure 3 As shown. For example, the metal component 22 has a portion on each side of the plastic component 21 along the extension direction of the lead screw 4, and each portion is independently fixed to the lead screw 4, thereby facilitating installation. Bolts 223 may be provided on the metal component 22, and the bolts 223 are fixed to the front linkage rod of the seat frame, thereby completing the installation of the motor housing 1 to the seat frame.

[0027] A positioning groove 213 may be provided in the plastic component 21 to determine the relative position of the metal component 22 and the plastic component 21. For example, the positioning groove 213 may be constructed as a straight line, which can fit against the edge of the metal component 22 for positioning. Further, the metal component 22 may include a metal component arc portion 222, which cooperates with the gearbox arc portion 31. The relative position of the metal component 22 and the gearbox 3 can be determined individually or together with the positioning groove 213 of the plastic component 21 by the cooperation of the metal component arc portion 222 and the gearbox arc portion 31. In addition, the metal component arc portion 222 may fit against the gearbox arc portion 31 to support the gearbox 3.

[0028] According to one embodiment of this application, a motor bracket includes a plastic component and a metal component, the plastic component and the metal component being fixed to each other, the plastic component being rotatably supporting a motor housing, and the metal component being used to mount the motor housing.

[0029] In the motor bracket according to this embodiment, the same plastic components can be used for different types of seat frames, requiring only the metal components to be redeveloped. Compared to redeveloping the entire plastic bracket, this solution is easier to process, has lower mold costs, and a shorter development cycle. Furthermore, using a metal bracket to mount the motor housing to the seat frame increases the strength of the connection points and reduces the risk of breakage.

[0030] Other technical features and effects of the motor bracket are described above and will not be repeated here.

[0031] This application also includes an automobile equipped with a seat tilt adjustment motor according to any one or more of the foregoing embodiments, the technical features and effects of which correspond to the foregoing description, and therefore will not be repeated here.

Claims

1. A seat tilt adjustment motor, characterized in that, The seat tilt adjustment motor includes a motor housing (1) and a motor bracket (2). The motor bracket (2) includes a plastic part (21) and a metal part (22). The plastic part (21) and the metal part (22) are fixed to each other. The motor housing (1) is rotatably supported in the plastic part (21). The metal part (22) is used to mount the motor housing (1).

2. The seat tilt adjustment motor according to claim 1, characterized in that, The seat tilt adjustment motor includes a gearbox (3), which includes a gearbox arc portion (31) and is rotatably supported in the plastic component (21) by means of the gearbox arc portion (31).

3. The seat tilt adjustment motor according to claim 2, characterized in that, The gearbox (3) is provided with a worm and a worm wheel. The worm is connected to the output shaft of the seat tilt adjustment motor, and the worm meshes with the worm wheel.

4. The seat tilt adjustment motor according to claim 3, characterized in that, The seat tilt adjustment motor includes a lead screw (4), the internal thread of the worm gear meshes with the external thread of the lead screw (4), the lead screw (4) is displaceable relative to the gearbox (3) along the axial direction of the worm gear, and the lead screw (4) is rotatable relative to the plastic component (21).

5. The seat tilt adjustment motor according to claim 4, characterized in that, An output section (41) is provided at the end of the lead screw (4) for outputting the power of the seat tilt adjustment motor; the lead screw (4) passes through the plastic component (21), and a limiting section (211) is provided in the plastic component (21) for limiting the displacement of the lead screw (4) relative to the plastic component (21) and / or for limiting the rotation of the lead screw (4) relative to the plastic component (21).

6. The seat tilt adjustment motor according to claim 1, characterized in that, The metal component (22) has a metal component hole (221), and the plastic component (21) has a plastic component hole (212). The metal component (22) and the plastic component (21) are fixed by a threaded connector (23) passing through the metal component hole (221) and the plastic component hole (212).

7. The seat tilt adjustment motor according to claim 1, characterized in that, The plastic component (21) is provided with a positioning groove (213) for determining the relative position of the metal component (22) and the plastic component (21).

8. The seat tilt adjustment motor according to claim 2, characterized in that, The metal component (22) includes a metal component arc portion (222), which cooperates with the gearbox arc portion (31) to determine the relative position of the metal component (22) and the gearbox (3) and / or to support the gearbox (3).

9. A motor bracket (2), characterized in that, The motor bracket (2) includes a plastic component (21) and a metal component (22), the plastic component (21) and the metal component (22) being fixed to each other, the plastic component (21) being used to rotatably support the motor housing (1), and the metal component (22) being used to mount the motor housing (1).

10. A car, characterized in that, It includes a seat tilt adjustment motor according to any one of claims 1 to 8.

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