Driving assembly capable of driving multiple functional parts

Abstract

The utility model discloses a driving assembly capable of driving a plurality of functional parts. The driving assembly comprises a motor assembly and a driving assembly, a shell assembly, wherein the motor assembly is mounted on the shell assembly; the rotating shaft is axially arranged on the shell assembly; the power output end of the motor assembly extends into the shell assembly to drive the rotating shaft to rotate. At least one blocking point used for limiting the rotating angle of the rotating shaft is arranged in the shell assembly. The motor assembly can directly drive the rotating shaft to rotate or drive the rotating shaft to rotate through the toothed plate, and the rotating shaft drives the functional part to rotate. The motor assembly can adapt to motors with different torques and can drive various functional parts, for example, when the torque of the motor assembly is only about 100N, a toothed plate can be adopted to drive a rotating shaft to rotate; when the torque of the motor assembly can reach about 300 N, the rotating shaft can be directly driven to rotate, first-stage transmission is achieved, and the shaking amount is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of driving mechanisms, in particular to a driving assembly capable of driving multiple functional parts. Background Art

[0002] With the popularization of smart cockpits, people have higher requirements for the intelligence, comfort and electrification of seats. A drive assembly that can drive multiple functional parts is particularly important.

[0003] Therefore, China Utility Model Patent Authorization Announcement No. CN216184685U discloses a vehicle seat with electrically adjustable armrest angle, in which the motor output shaft drives the gear, and the gear meshes with the armrest frame groove, thereby driving the armrest to rotate. The disadvantage is that the armrest shaft is the motor output shaft and has weak strength.

[0004] Chinese utility model patent authorization announcement number CN217170524 discloses a car seat with adjustable armrests, in which a screw rod drives a nut to reciprocate under the drive of a motor, thereby achieving armrest adjustment. The disadvantage is that the drive structure achieves forward and backward sliding in the X direction, and cannot achieve Z-direction opening and closing of the armrest.

[0005] The Chinese utility model patent authorization announcement number CN217743684U discloses an electric armrest mechanism for a seat, in which the motor gear drives the tooth plate, and the tooth plate drives the armrest shaft to rotate, thereby realizing the rotation of the armrest. Its disadvantages are: there is no one-piece outer shell, and the tooth gap between the gear and the tooth plate cannot be controlled. In addition, the motor drive bracket in this patent only passes through the armrest support and the motor support, which cannot meet the stability and assembly of the motor; the motor gear cannot be fixed in the Y direction, and the exposed grease of the gear will leak. The rotating shaft is a cylindrical shaft, and there is no effective limiting method. In theory, it cannot drive the armrest to rotate. Although the housing tooth plate has a hard stop point, it only stops against the gear. The rotating shaft is not infinitely fixed. When a large torque occurs, the right end of the rotating shaft will move in series.

[0006] The electric seat armrest adjustment device and model car disclosed in Chinese invention patent application No. CN202310202734.7 drive the rotating plate to rotate the rotating shaft by means of a lifting leg rest motor. However, the disadvantage is that there is a risk of shaking and abnormal noise when the leg rest motor screw drives the rotating shaft to rotate.

[0007] Chinese invention patent application publication number CN108284470A discloses an electric armrest adjustment device for a car seat, which drives the internal driving wheel and driven wheel of the armrest to rotate through a motor transmission rod, thereby driving the armrest to rotate. This is an indirect transmission, and its disadvantages are: many parts are required and the applicability is poor. Utility Model Content

[0008] The technical problem to be solved by the present invention is to provide a drive assembly that can drive a variety of functional parts directly or by a gear plate to adapt to motors with different torques, in response to the problems existing in the above-mentioned prior art. The drive assembly has the advantages of small layout space, lighter weight, lower cost and strong versatility.

[0009] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0010] A drive assembly capable of driving multiple functional parts, comprising:

[0011] a motor assembly;

[0012] A housing assembly, the motor assembly is mounted on the housing assembly; characterized in that it also includes:

[0013] A rotating shaft, the rotating shaft being arranged on the housing assembly;

[0014] The power output end of the motor assembly extends into the housing assembly to drive the rotating shaft to rotate; at least one stop point for limiting the rotation angle of the rotating shaft is arranged in the housing assembly.

[0015] In a preferred embodiment of the utility model, the rotating shaft has an active end and a driven end, the active end is drivingly connected to the power output end of the motor assembly, and the driven end is a special-shaped shaft drivingly connected to various functional parts.

[0016] In a preferred embodiment of the utility model, a round shaft is arranged between the driving end and the driven end, an integrally manufactured shaft sleeve is arranged on the housing assembly, and the round shaft passes through the inner hole of the shaft sleeve and is arranged in the inner hole.

[0017] In a preferred embodiment of the utility model, it further comprises a torsion spring, which is wound around the shaft sleeve, one end of the torsion spring acts on the housing assembly, and the other end of the torsion spring acts on the special-shaped shaft.

[0018] In a preferred embodiment of the utility model, a boss structure is provided on the housing assembly, and one end of the torsion spring is hooked on the boss structure; the other end of the torsion spring is configured to conform to the special-shaped shaft so as to be wound around the special-shaped shaft.

[0019] In a preferred embodiment of the present utility model, the housing assembly is divided into a first housing close to the motor assembly and a second housing away from the motor assembly, and the first housing and the second housing are connected by fasteners; the stop point is arranged on the side of the first housing opposite to the second housing; the bushing and the boss structure are arranged on the side of the second housing away from the first housing.

[0020] In a preferred embodiment of the present invention, the power output end of the motor assembly is directly drivingly connected to the active end of the rotating shaft.

[0021] In a preferred embodiment of the utility model, a shaft hole is provided on the first shell, the shaft hole is concentric with the inner hole of the sleeve, and the active end of the shaft is positioned and axially arranged in the shaft hole.

[0022] In a preferred embodiment of the present utility model, a motor gear is provided at the power output end of the motor assembly, and the motor gear is directly drivingly connected to the active end of the rotating shaft.

[0023] In a preferred embodiment of the utility model, an inner hole is provided in the driving end of the rotating shaft, and inner teeth are provided in the inner hole. The motor gear is inserted into the inner hole and meshes with the inner teeth, and is directly driven and connected to the driving end of the rotating shaft.

[0024] In a preferred embodiment of the present invention, at least one blocking arm extending radially outward is provided at the active end of the rotating shaft, and the blocking arm is combined with the blocking point to define the rotation angle of the rotating shaft.

[0025] In a preferred embodiment of the present utility model, the blocking arm includes a first blocking arm and a second blocking arm, and the first blocking arm and the second blocking arm are respectively combined with the blocking point to define the rotation angle of the rotating shaft.

[0026] In a preferred embodiment of the present utility model, the power output end of the motor assembly is drivingly connected to the active end of the rotating shaft via a toothed plate fixed to the active end.

[0027] In a preferred embodiment of the utility model, a special-shaped shaft segment and a flange edge are provided at the active end of the rotating shaft, and a special-shaped hole is provided in the tooth plate. The special-shaped hole is sleeved on the special-shaped shaft segment and cooperates with the special-shaped shaft segment, so that the tooth plate and the rotating shaft rotate synchronously; the flange edge cooperates with the second shell to axially limit the tooth plate.

[0028] In a preferred embodiment of the utility model, a section of sector-shaped external teeth is provided on the outer periphery of the tooth plate, and a motor gear is provided at the power output end of the motor assembly, and the motor gear is meshed with the sector-shaped external teeth.

[0029] In a preferred embodiment of the present invention, at least one blocking arm extending radially outward is provided on the outer periphery of the tooth plate, and the blocking arm is combined with the blocking point to define the rotation angle of the rotating shaft.

[0030] In a preferred embodiment of the present utility model, the blocking arm includes a first blocking arm and a second blocking arm, and the first blocking arm and the second blocking arm are respectively combined with the blocking point and the teeth of the motor gear to limit the rotation angle of the rotating shaft.

[0031] In a preferred embodiment of the present invention, the sector-shaped external teeth are located between the first blocking arm and the second blocking arm.

[0032] In a preferred embodiment of the present invention, a first motor assembly positioning hole is provided on the first shell body, and a second motor assembly positioning hole is provided on the second shell body, and the first motor assembly positioning hole is concentric with the second motor assembly positioning hole; a first positioning shaft and a second positioning shaft are respectively provided at both ends of the motor gear, and the first positioning shaft is positioned and axially arranged in the first motor assembly positioning hole, and the second positioning shaft is positioned and axially arranged in the second motor assembly positioning hole.

[0033] In a preferred embodiment of the present invention, the functional part is one of a seat armrest, a leg rest, a small table, and a footrest.

[0034] Due to the adoption of the above technical solution, the motor assembly of the utility model can directly drive the shaft to rotate or drive the shaft to rotate through the toothed plate, and the shaft drives the functional parts to rotate. The motor that can adapt to different torques can drive a variety of functional parts. For example, when the torque of the motor assembly is only about 100N, the toothed plate can be used to drive the shaft to rotate; when the torque of the motor assembly can reach about 300N, it can directly drive the shaft to rotate, which belongs to the first-level transmission and reduces the shaking amount.

[0035] In addition, the utility model positions and installs the motor assembly and the rotating shaft through the housing assembly, and the installation accuracy is easy to control. In addition, the utility model provides a torsion spring to provide downward pressure to the rotating shaft, thereby reducing the gap and shaking existing in the rotation of the rotating shaft. The utility model also has the advantages of small layout space, lighter weight, lower cost, and strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is one of the structural schematic diagrams of the drive assembly capable of driving multiple functional parts in Example 1 of the utility model.

[0037] Figure 2 This is the second structural schematic diagram of the drive assembly capable of driving multiple functional parts according to Example 1 of the utility model.

[0038] Figure 3 This is one of the schematic diagrams of an installation method of a drive assembly capable of driving multiple functional parts in Example 1 of the utility model.

[0039] Figure 4This is a second schematic diagram of an installation method of the drive assembly capable of driving multiple functional parts in Example 1 of the utility model.

[0040] Figure 5 This is a schematic diagram of the overall decomposition of the driving components that can drive multiple functional parts in Example 1 of the utility model.

[0041] Figure 6 This is one of the schematic diagrams of the drive assembly capable of driving multiple functional parts according to Example 1 of the utility model being used to drive the seat armrest to move to the closed position.

[0042] Figure 7 This is the second schematic diagram of the drive assembly capable of driving multiple functional parts according to Embodiment 1 of the utility model, which is used to drive the seat armrest to move to the closed position.

[0043] Figure 8 This is a schematic diagram of the meshing between the motor gear and the rotating shaft when the drive assembly capable of driving multiple functional parts of Example 1 of the utility model is used to drive the seat armrest to move to the closed position.

[0044] Fig. 9 This is a schematic diagram of the contact between the blocking point and the blocking arm when the driving assembly capable of driving multiple functional parts of Example 1 of the utility model is used to drive the seat armrest to move to the closed position.

[0045] Fig.10 This is a schematic diagram of a driving assembly capable of driving multiple functional parts according to Embodiment 1 of the utility model, used to drive the seat armrest to move to the open position.

[0046] Fig.11 This is the second schematic diagram of the drive assembly capable of driving multiple functional parts according to embodiment 1 of the utility model, used to drive the seat armrest to move to the open position.

[0047] Fig.12 This is a schematic diagram of the meshing between the motor gear and the rotating shaft when the drive assembly capable of driving multiple functional parts of Example 1 of the utility model is used to drive the seat armrest to move to the open position.

[0048] Fig.13 This is a schematic diagram of the contact between the blocking point and the blocking arm when the driving assembly capable of driving multiple functional parts of Example 1 of the utility model is used to drive the seat armrest to move to the closed position.

[0049] Fig.14 This is a schematic diagram of the rotating shaft structure in the driving assembly capable of driving various functional parts according to Example 1 of the utility model.

[0050] Fig.15 This is a cross-sectional view of a drive assembly capable of driving multiple functional parts according to Example 1 of the utility model.

[0051] Fig.16 This is one of the schematic diagrams of the seat armrest in the drive assembly capable of driving multiple functional parts according to Example 1 of the utility model following the seat when the seat is in a zero-pressure state.

[0052] Fig.17 This is the second schematic diagram of the seat armrest in the drive assembly capable of driving multiple functional parts according to Example 1 of the utility model following the seat when the seat is in a zero-pressure state.

[0053] Fig.18 This is a schematic diagram of the rotation of the backrest motor of the seat armrest in the drive assembly capable of driving multiple functional parts of Example 1 of the utility model during the process of following the seat movement when the seat is in a zero-pressure state.

[0054] Fig.19 This is a schematic diagram of the meshing between the motor gear and the rotating shaft during the process in which the seat armrest in the drive assembly capable of driving multiple functional parts of Example 1 of the utility model follows the seat when the seat is in a zero-pressure state.

[0055] Fig. 20 It is a schematic diagram of the rotation of the seat armrest from the open position to the seat zero pressure position in the drive assembly capable of driving multiple functional parts according to Example 1 of the utility model.

[0056] Fig.21 It is a schematic diagram of the rotation of the backrest motor during the process of rotating the seat armrest from the open position to the seat zero pressure position in the drive assembly capable of driving multiple functional parts of Example 1 of the utility model.

[0057] Fig. 22 This is a schematic diagram of the meshing between the motor gear and the rotating shaft during the process of the seat armrest in the drive assembly capable of driving multiple functional parts in Example 1 of the utility model rotating from the open position to the seat zero pressure position.

[0058] Fig.23 This is one of the schematic diagrams of the seat armrest in the drive assembly capable of driving multiple functional parts according to Example 1 of the utility model following the seat when the seat is in a small angle state.

[0059] Fig.24 This is the second schematic diagram of the seat armrest in the drive assembly capable of driving multiple functional parts according to Example 1 of the utility model following the seat when the seat is at a small angle.

[0060] Fig.25 This is a schematic diagram of the rotation of the backrest motor of the seat armrest in the drive assembly capable of driving multiple functional parts of Example 1 of the utility model during the process of following the seat movement when the seat is at a small angle.

[0061] Fig.26 This is a schematic diagram of the meshing between the motor gear and the rotating shaft during the process in which the seat armrest in the drive assembly capable of driving multiple functional parts of Example 1 of the utility model follows the seat when the seat is in a small angle state.

[0062] Fig. 27 It is a schematic diagram of the rotation of the seat armrest from the open position to the small seat angle state in the drive assembly capable of driving multiple functional parts in Example 1 of the utility model.

[0063] Fig.28 It is a schematic diagram of the rotation of the backrest motor during the process of rotating the seat armrest from the open position to the small seat angle state in the drive assembly capable of driving multiple functional parts in Example 1 of the utility model.

[0064] Fig.29 It is a schematic diagram of the meshing between the motor gear and the rotating shaft during the process of the seat armrest in the drive assembly capable of driving multiple functional parts in Example 1 of the utility model rotating from the open position to the small seat angle state.

[0065] Fig.30 This is a schematic diagram of the logic control flow of rotating a seat armrest from an open position to a closed position in a drive assembly capable of driving multiple functional parts according to Example 1 of the utility model.

[0066] Fig.31 This is a schematic diagram of the logic control flow of the seat armrest following movement in the drive assembly capable of driving multiple functional parts in Example 1 of the utility model.

[0067] Fig.32 This is a schematic diagram of the overall decomposition of the drive components that can drive multiple functional parts in Example 2 of the utility model.

[0068] Fig.33 This is one of the structural schematic diagrams of the drive assembly capable of driving multiple functional parts according to Example 2 of the utility model (before motor drive).

[0069] Fig.34 This is the second structural schematic diagram of the drive assembly capable of driving various functional parts according to Example 2 of the utility model (after being driven by the motor).

[0070] Fig.35 This is a schematic diagram of the installation of a drive assembly capable of driving multiple functional parts according to Example 2 of the utility model.

[0071] Fig.36 This is one of the structural cross-sectional views of the drive assembly of Example 2 of the utility model that can drive multiple functional parts.

[0072] Fig.37This is the second structural cross-sectional view of the drive assembly capable of driving multiple functional parts according to Example 2 of the utility model.

[0073] Figures 38 to 40 This is a schematic diagram of the rotation process of the driving assembly capable of driving various functional parts according to Example 2 of the utility model.

[0074] Fig.41 This is a schematic diagram of a seat armrest in a closed position in a drive assembly capable of driving multiple functional parts according to Example 2 of the utility model.

[0075] Fig.42 This is a schematic diagram of a seat armrest in an open position in a drive assembly capable of driving multiple functional parts according to Example 2 of the utility model.

[0076] Fig.43 This is a schematic diagram of a seat armrest in the lowest position in a drive assembly capable of driving multiple functional parts according to Example 2 of the utility model.

[0077] Fig.44 This is a schematic diagram of the position of the seat armrest in the drive assembly capable of driving multiple functional parts of Example 2 of the utility model when the seat is at a small angle.

[0078] Fig.45 This is a schematic diagram of the meshing state of the motor gear and the gear plate of the seat armrest in the drive assembly capable of driving multiple functional parts of Example 2 of the utility model when the seat is at a small angle.

[0079] Fig.46 This is a schematic diagram of the position of the seat armrest in the drive assembly capable of driving multiple functional parts of Example 2 of the utility model when the seat is in a normal state.

[0080] Fig.47 This is a schematic diagram of the meshing state of the motor gear and the gear plate of the seat armrest in the drive assembly capable of driving multiple functional parts of Example 2 of the utility model when the seat is in a normal state.

[0081] Fig.48 This is a schematic diagram of the position of the seat armrest in the drive assembly capable of driving multiple functional parts of Example 2 of the utility model when the seat is in a zero-pressure state.

[0082] Fig.49 This is a schematic diagram of the meshing state of the motor gear and the gear plate of the seat armrest in the drive assembly capable of driving multiple functional parts of Example 2 of the utility model when the seat is in a zero-pressure state. DETAILED DESCRIPTION

[0083] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0084] Example 1

[0085] See also Figures 1 to 5 , Fig.15 , a driving assembly that can drive multiple functional parts as shown in the figure includes: a motor assembly 100, a housing assembly 200, a rotating shaft 300 and a torsion spring 400.

[0086] The motor assembly 100 includes a motor 110 and a reduction box 120. The housing assembly 200 includes a first housing 210 close to the motor assembly and a second housing 220 far from the motor assembly. The first housing 210 and the second housing 220 are both made by precision die-casting. At the same time, a shaft hole 211 is formed on the first housing 210, and a sleeve 221 is formed in an integrated manner on the second housing 220. The shaft hole 211 and the sleeve 211 are concentric after the first housing 210 and the second housing 220 are assembled together by fasteners to ensure the accuracy of the shaft 300 being installed on the housing assembly 200. At the same time, after the first housing 210 and the second housing 220 are assembled together by fasteners, the oil leakage problem caused by the exposed parts inside the first housing 210 and the second housing 220 can be avoided.

[0087] The reduction box 120 in the motor assembly 100 is fixed to the first housing 210 by fasteners, and the motor 110 is installed on the reduction box 120 in a manner that the axis is parallel to the first housing 210, which can save the space occupied by the motor 110 in the width direction.

[0088] The rotating shaft 300 has a driving end 310 and a driven end 320, and a round shaft 330 is arranged between the driving end 310 and the driven end 320. The driving end 310 of the rotating shaft 300 is positioned by the bushing 510 and is axially arranged in the rotating shaft shaft hole 211, and the round shaft 330 is positioned by the bushing 520 and is axially arranged in the inner hole of the sleeve 221. This installation method can ensure the installation accuracy of the rotating shaft 300.

[0089] The motor assembly 100 in this embodiment drives the rotating shaft 300 to rotate in a direct drive manner, that is, the power output end of the motor assembly 100 is directly connected to the driving end 310 of the rotating shaft 300. The power output end of the motor assembly 100 is the power output end 121 of the reduction box 120 (see Figure 5 ), more specifically, a motor gear 130 is provided at the power output end 121 of the reduction box 120, and the motor gear 130 is directly connected to the driving end 310 of the rotating shaft 300. Figure 8 , Fig.12 , Fig.14 , Fig.19 , Fig. 22 , Fig.26 , Fig.29An inner hole 311 is provided in the driving end 310 of the rotating shaft 300 , and an inner tooth 312 is provided in the inner hole 311 . The motor gear 130 is inserted into the inner tooth 312 and meshes with the inner tooth 312 .

[0090] In order to enable the rotating shaft 300 to drive the functional parts, the driven end 320 of the rotating shaft 300 is a special-shaped shaft, such as a square shaft or a diamond shaft, which is drivingly connected to various functional parts.

[0091] In order to limit the rotation angle of the rotating shaft 300, a stop point 213 is provided in the housing assembly 200, such as the first housing 210 or the second assembly 220, to limit the rotation angle of the rotating shaft 300. Specifically, the stop point 213 is provided on the side 212 of the first housing 210 opposite to the second housing 200.

[0092] In cooperation with the blocking point 213, at least one blocking arm extending radially outward is provided at the active end 310 of the rotating shaft 300, such as a first blocking arm 341 and a second blocking arm 342. The angle between the first blocking arm 341 and the second blocking arm 342 is any angle between 0° and 180°, which can be selected as needed. Fig. 9 , Fig.13 The first blocking arm 341 and the second blocking arm 342 are combined with the blocking point 213 to define the rotation angle of the rotating shaft 300 .

[0093] In order to provide tension to the rotating shaft 300 and reduce the gap and shaking when the rotating shaft 300 rotates, the torsion spring 400 of this embodiment is wound on the shaft sleeve 221, and one end 410 of the torsion spring 400 acts on the housing assembly 200, that is, on the side 222 of the second housing 220 that faces away from the first housing 210 (for example, a boss structure 223 is formed on the side 222 of the second housing 220 that faces away from the first housing 210, and one end 410 of the torsion spring 400 is hooked on the boss structure 223), and the other end 420 acts on the step surface 331 formed between the special-shaped shaft and the round shaft 330. The other end 420 of the torsion spring 400 is configured to be adapted to the special-shaped shaft, such as square, rhombus or hexagonal, so as to be wound on the special-shaped shaft.

[0094] This embodiment can drive a variety of functional parts, the functional part is a seat armrest 500 (see Figure 6 , Figure 7 , Fig.10 , Fig.11 , Fig.16 , Fig.17 , Fig. 20 , Fig.23 , Fig.24 and Fig. 27 ), or a leg rest, a small table, or a footrest. The square shaft in the rotating shaft 300 is drivingly connected to the seat armrest 500, and the Figure 3 , Figure 4 , Figure 5 The housing assembly 200 is fixed to the seat back frame 700 by fasteners, and the seat back frame 700 is fixed to the seat back frame 700 by fasteners. Figures 6 to 13 , Figures 16 to 28 , so that the entire driving mechanism can follow the seat back frame 700.

[0095] See also Fig.30 and Fig.31 The motor assembly 100 can be linked with the seat application scenarios through module control, including the application of adaptive level, one-key zero gravity mode, one-key expansion and other scenarios, and the seat armrest 500 can also be adjusted separately to meet the comfort. The module can output the seat armrest 500 opening and closing instructions and the seat follow-up instructions.

[0096] Example 2

[0097] The difference between this embodiment and embodiment 1 is: Fig.32 and Fig.37 The power output end of the motor assembly 100, namely the motor gear 130, is connected to the driving end 310a of the rotating shaft 300a through a toothed plate 600 fixed to the driving end 310a. The specific structure is as follows:

[0098] The rotating shaft 300a has a driving end 310a and a driven end 320a, and a round shaft 330a is arranged between the driving end 310a and the driven end 320a. The driving end 310a of the rotating shaft 300a is positioned by the bushing 510 and is axially arranged in the rotating shaft shaft hole 211, and the round shaft 330a is positioned by the bushing 520 and is axially arranged in the inner hole of the sleeve 221. This installation method can ensure the installation accuracy of the rotating shaft 300a.

[0099] In addition, a special-shaped shaft segment 340a, such as a square shaft segment, and a flange edge 350a are provided at the active end 310a of the rotating shaft 300a, and a special-shaped hole 610, such as a square hole, is provided in the tooth plate 600. The special-shaped hole 340a is sleeved on the special-shaped shaft segment 340a and cooperates with the special-shaped shaft segment 340a, so that the tooth plate 600 and the rotating shaft 300a rotate synchronously; the flange edge 350a cooperates with the second shell 220 to axially limit the tooth plate 600.

[0100] A first motor assembly positioning hole 214 is provided on the first shell 210, and a second motor assembly positioning hole 224 is provided on the second shell 220, and the first motor assembly positioning hole 214 is concentric with the second motor assembly positioning hole 224; a first positioning shaft 131 and a second positioning shaft 132 are respectively provided at both ends of the motor gear 130, the first positioning shaft 131 is positioned by a bushing 530 and is axially arranged in the first motor assembly positioning hole 214, and the second positioning shaft 132 is positioned by a bushing 540 and is axially arranged in the second motor assembly positioning hole 224, so that the motor assembly 100 can be accurately installed on the shell assembly 200, so that the motor gear 130 is precisely meshed with the fan-shaped external teeth 620 on the gear plate 600 to reduce shaking.

[0101] The sector-shaped external teeth 620 are arranged on the outer periphery of the tooth plate 600. At least one blocking arm, such as a first blocking arm 630 and a second blocking arm 640, extending radially outward is arranged on the outer periphery of the tooth plate 600. The sector-shaped external teeth 620 are located between the first blocking arm 630 and the second blocking arm 640. The angle between the first blocking arm 630 and the second blocking arm 640 is any angle between 0° and 180°.

[0102] See also Figures 38 to 40 The motor gear 130 drives the rotating shaft 300a to rotate through the fan-shaped outer teeth 620 on the gear plate 600, so that the first stop arm 630 and the second stop arm 640 respectively define the rotation angle of the rotating shaft 300 in combination with the stop point 213 and the teeth 133 on the motor gear 130, so as to share the pressure applied to the stop point 213 when the motor is blocked, thereby increasing the stopping strength. Since the angle between the first stop arm 630 and the second stop arm 640 is any angle between 0° and 180°, the rotating shaft 300a can rotate within any angle range between 0° and 180°, driving the seat armrest, leg rest, small table or footrest to rotate.

[0103] join Figures 41 to 49 As in Example 1, the motor assembly 100 can be controlled by the module to realize linkage with the seat application scenarios, including the application of adaptive level, one-key zero gravity mode, one-key expansion and other scenarios, and the seat armrest 500 can also be adjusted separately to meet the comfort. The module can output the seat armrest 500 opening and closing instructions and the seat follow-up instructions.

Claims

1. A drive assembly capable of driving multiple functional parts, comprising: a motor assembly; A housing assembly, the motor assembly is mounted on the housing assembly; characterized in that it also includes: A rotating shaft, the rotating shaft being arranged on the housing assembly; The power output end of the motor assembly extends into the housing assembly to drive the rotating shaft to rotate; at least one stop point for limiting the rotation angle of the rotating shaft is arranged in the housing assembly.

2. A drive assembly capable of driving multiple functional parts according to claim 1, characterized in that: The rotating shaft has a driving end and a driven end. The driving end is drivingly connected to the power output end of the motor assembly, and the driven end is a special-shaped shaft drivingly connected to various functional parts.

3. A drive assembly capable of driving multiple functional parts according to claim 2, characterized in that: A round shaft is arranged between the driving end and the driven end, an integrally manufactured shaft sleeve is arranged on the housing assembly, and the round shaft passes through the inner hole of the shaft sleeve and is arranged in the inner hole.

4. A drive assembly capable of driving multiple functional parts according to claim 3, characterized in that: It also includes a torsion spring, which is wound around the shaft sleeve, one end of which acts on the housing assembly, and the other end of which acts on the special-shaped shaft.

5. A drive assembly capable of driving multiple functional parts according to claim 4, characterized in that: A boss structure is arranged on the housing assembly, and one end of the torsion spring is hooked on the boss structure; the other end of the torsion spring is arranged to be conformed to the special-shaped shaft so as to be wound on the special-shaped shaft.

6. A drive assembly capable of driving multiple functional parts according to claim 5, characterized in that: The housing assembly is divided into a first housing close to the motor assembly and a second housing far away from the motor assembly, and the first housing and the second housing are connected by fasteners; the stop point is arranged on the side of the first housing opposite to the second housing; the bushing and the boss structure are arranged on the side of the second housing away from the first housing.

7. A drive assembly capable of driving multiple functional parts according to claim 6, characterized in that: The power output end of the motor assembly is directly drivingly connected to the active end of the rotating shaft.

8. A drive assembly capable of driving multiple functional parts according to claim 7, characterized in that: A shaft hole is provided on the first shell, the shaft hole is concentric with the inner hole of the sleeve, and the active end of the shaft is positioned and axially arranged in the shaft hole.

9. A drive assembly capable of driving multiple functional parts according to claim 7, characterized in that: A motor gear is arranged at the power output end of the motor assembly, and the motor gear is directly drivingly connected to the active end of the rotating shaft.

10. A drive assembly capable of driving multiple functional parts according to claim 9, characterized in that: An inner hole is arranged in the driving end of the rotating shaft, and inner teeth are arranged in the inner hole. The motor gear is inserted into the inner hole and meshes with the inner teeth, and is directly drivingly connected with the driving end of the rotating shaft.

11. A drive assembly capable of driving multiple functional parts according to claim 10, characterized in that: At least one blocking arm extending radially outward is arranged at the active end of the rotating shaft, and the blocking arm is combined with the blocking point to define the rotation angle of the rotating shaft.

12. A drive assembly capable of driving multiple functional parts according to claim 11, characterized in that: The blocking arm comprises a first blocking arm and a second blocking arm, and the first blocking arm and the second blocking arm are respectively combined with the blocking point to define the rotation angle of the rotating shaft.

13. A drive assembly capable of driving multiple functional parts according to claim 6, characterized in that: The power output end of the motor assembly is drivingly connected to the active end of the rotating shaft via a toothed plate fixed to the active end.

14. A drive assembly capable of driving multiple functional parts according to claim 13, characterized in that: A special-shaped shaft section and a flange edge are arranged at the active end of the rotating shaft, and a special-shaped hole is arranged in the tooth plate. The special-shaped hole is sleeved on the special-shaped shaft section and cooperates with the special-shaped shaft section, so that the tooth plate and the rotating shaft rotate synchronously; the flange edge cooperates with the second shell to axially limit the tooth plate.

15. A drive assembly capable of driving multiple functional parts according to claim 13, characterized in that: A section of sector-shaped external teeth is arranged on the outer periphery of the tooth plate, and a motor gear is arranged at the power output end of the motor assembly, and the motor gear is meshed with the sector-shaped external teeth.

16. A drive assembly capable of driving multiple functional parts according to claim 15, characterized in that: At least one blocking arm extending radially outward is arranged on the outer periphery of the tooth plate, and the blocking arm is combined with the blocking point to define the rotation angle of the rotating shaft.

17. A drive assembly capable of driving multiple functional parts according to claim 16, characterized in that: The blocking arm includes a first blocking arm and a second blocking arm, and the first blocking arm and the second blocking arm are respectively combined with the blocking point and the teeth of the motor gear to define the rotation angle of the rotating shaft.

18. A drive assembly capable of driving multiple functional parts according to claim 17, characterized in that: The sector-shaped external teeth are located between the first blocking arm and the second blocking arm.

19. A drive assembly capable of driving multiple functional parts according to claim 9, characterized in that: A first motor assembly positioning hole is provided on the first shell, and a second motor assembly positioning hole is provided on the second shell, and the first motor assembly positioning hole is concentric with the second motor assembly positioning hole; a first positioning shaft and a second positioning shaft are respectively provided at both ends of the motor gear, and the first positioning shaft is positioned and axially arranged in the first motor assembly positioning hole, and the second positioning shaft is positioned and axially arranged in the second motor assembly positioning hole.

20. A drive assembly capable of driving multiple functional parts according to claim 1, characterized in that: The functional part is one of a seat armrest, a leg rest, a small table top, and a footrest.

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