CN220220489U

CN220220489U - Electric seat rotating mechanism and automobile seat

Info

Publication number: CN220220489U
Application number: CN202321741638.1U
Authority: CN
Inventors: 陈明; 李娟�; 高元和; 王聪
Original assignee: Hubei Hapm Magna Seating Systems Co ltd
Current assignee: Hubei Hapm Magna Seating Systems Co ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2023-12-22
Anticipated expiration: 2033-07-04

Abstract

The application provides an electric seat rotating mechanism and an automobile seat, wherein the electric seat rotating mechanism comprises a turntable (1), a base component and a friction piece (8); the rotary table (1) is rotationally connected with the base component, and the friction piece (8) is arranged between the rotary table (1) and the base component; the friction piece (8) is tightly contacted with the turntable (1) and the base, so that the friction piece (8) has a certain elastic compression amount. This application has increased the friction torque between carousel and the base constitution, has offset the driving force to the carousel when taking the passenger, and the carousel rocks when having avoided the passenger to take and has led to the seat frame to rock, has promoted the travelling comfort of taking.

Description

Electric seat rotating mechanism and automobile seat

Technical Field

The application relates to the technical field of automobiles, in particular to a rotating mechanism of an electric seat.

Background

The rotatable automobile seat can greatly improve the interactivity of passengers in the automobile, so that the user experience is better. At present, a rotating mechanism of a rotatable automobile seat mainly utilizes meshing of gears and toothed plates to drive, and is influenced by a manufacturing process and an assembling process, gaps exist among the toothed plates of the gears, so that the seat can shake when a passenger takes the seat, and riding comfort is influenced by the shaking.

In view of this, how to avoid the rocking of the rotatable car seat is a technical problem that needs to be solved by the person skilled in the art.

Disclosure of Invention

In order to solve the technical problems, the application provides a power seat rotating mechanism, which comprises a turntable, a base assembly and a friction piece; the rotary table is rotationally connected with the base component, and the friction piece is arranged between the rotary table and the base component; the friction piece is tightly contacted with the turntable and the base, so that the friction piece has a certain elastic compression amount.

One embodiment of the electric seat rotating mechanism, the friction piece is of an integrated structure and comprises a wear-resistant part, and the wear-resistant part of the friction piece contacts the base assembly and the turntable;

or, the friction piece is an assembled structure and comprises a wear-resistant part and a supporting part, the wear-resistant part of the friction piece contacts the base assembly and the turntable, the supporting part is assembled with the wear-resistant part and is used for supporting the wear-resistant part, and the elasticity of the supporting part is greater than that of the wear-resistant part.

In one embodiment of the power seat rotating mechanism, the wear-resistant part is provided with a cavity; the support portion is mounted in the cavity in an interference manner.

In one embodiment of the electric seat rotating mechanism, the supporting portion is clamped with the wear-resisting portion through a concave-convex structure, the cavity is an open cavity, and a notch is formed near the concave-convex structure by the supporting portion, so that the concave-convex structure is exposed through the notch and the opening of the cavity.

In one embodiment of the power seat rotating mechanism, a surface of the friction member, which is in contact with the turntable or the base component, is a curved surface, and only a partial area of the curved surface is in contact with the turntable or the base component.

In one embodiment of the power seat rotating mechanism, the friction member is an annular friction member, and the annular friction member is coaxially arranged with the turntable; or the friction piece is a block friction piece, and a plurality of block friction pieces are sequentially arranged at intervals along the circumferential direction of the turntable.

An implementation mode of the electric seat rotating mechanism, the base comprises a base body, an outer pressing plate and an inner pressing plate, wherein the outer pressing plate and the inner pressing plate are fixedly connected with the base body, the electric seat rotating mechanism further comprises a plurality of groups of rolling assemblies, a turntable rolling assembly is arranged between the turntable and the base body, the inner pressing plate is in press connection with an inner ring of the turntable and an inner ring rolling assembly is arranged between the inner ring of the turntable, and the outer pressing plate is in press connection with an outer ring of the turntable and an outer ring rolling assembly is arranged between the outer ring of the turntable.

One embodiment of the electric seat rotating mechanism comprises a rotary driving motor, a gear, a toothed plate, an unlocking motor, a lock pin bracket, an unlocking stay wire, a lock pin, a lock slot bracket and an elastic reset piece, wherein the rotary driving motor is fixedly connected with the turntable;

the gear is fixedly connected with an output shaft of the rotary driving motor, the toothed plate is fixedly connected with the base, and the gear is meshed with the toothed plate so as to drive the turntable to rotate relative to the base;

the unlocking motor pulls the unlocking stay wire to enable the lock pin bracket to rotate relative to the turntable so as to drive the lock pin to be separated from a lock groove of the lock groove bracket, so that unlocking is realized;

the elastic reset piece is used for providing elastic reset force for the lock pin bracket, so that the lock pin can be clamped into the locking groove under the action of the elastic reset force when the turntable rotates to the locking position, and locking is achieved.

In one embodiment of the electric seat rotating mechanism, the turntable is provided with a first limit baffle, the base is provided with a second limit baffle, and when the turntable rotates to a limit position beyond the locking position, the first limit baffle and the second limit baffle are mutually abutted to limit the rotation limit of the turntable.

In addition, the application still provides an automobile seat, including seat frame and electric seat rotary mechanism, electric seat rotary mechanism is above-mentioned arbitrary electric seat rotary mechanism, electric seat rotary mechanism the carousel with seat frame fixed connection, electric seat rotary mechanism the base is constituteed and is used for with slide rail sliding connection or with automobile body fixed connection.

This application is through setting up the friction piece between carousel and base constitution and making the friction piece have certain elasticity compression volume, has increased the friction moment between carousel and the base constitution, has offset the driving force to the carousel when taking the passenger, and the carousel rocks when having avoided the passenger to take and has led to the seat frame to rock, has promoted the travelling comfort of taking.

Drawings

FIG. 1 is a schematic view of one embodiment of a power seat rotation mechanism provided herein;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is an exploded view of a portion of the structure of FIG. 1;

FIG. 4 is a cross-sectional view of a turntable and base assembly;

FIG. 5 is an exploded view of a portion of the structure of FIG. 1;

fig. 6 is a structural view of the friction member.

The reference numerals are explained as follows:

the novel rotary table comprises a rotary table body, a base body, an inner pressure plate, an outer pressure plate, an inner ring rolling assembly, an outer ring rolling assembly, a rotary table rolling assembly, a friction piece, an abrasion-resistant part, a supporting part, a curved surface A, a concave-convex structure B, a notch C, a pattern D, a limiting step E, a rotary driving motor 9, a gear 10, a toothed plate 11, a unlocking motor 12, a locking pin bracket 13, a locking pin 14, a unlocking pull wire 15, a pulling wire bracket 16, a locking groove bracket 17, a plate spring 18, a first limiting baffle 19, a second limiting baffle 20, a motor bracket 21, a rotary table mounting bolt 22, a motor bracket fixing nut 23, a rotary driving motor fixing nut 24, a unlocking motor fixing nut 25, a elastic retainer 26, a step nut 27 and a mounting screw 28.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the present application, the technical solutions of the present application are further described in detail below with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 to 3, the power seat rotating mechanism provided by the application comprises a turntable 1, a base component (comprising a base body 2, an inner pressure disk 3 and an outer pressure disk 4) and a friction piece 8.

The turntable 1 is rotationally connected with the base, and when the turntable 1 is applied to an automobile, the turntable 1 is fixedly connected with a seat frame of an automobile seat, and the base is slidingly connected with a sliding rail or fixedly connected with an automobile body. The turntable 1 rotates relative to the base assembly, so that the seat frame of the automobile seat can rotate.

The friction member 8 is arranged between the turntable 1 and the base assembly. The friction piece 8 is tightly contacted with the turntable 1 and the base, so that the friction piece 8 has a certain elastic compression amount.

Through set up friction piece 8 and make friction piece 8 have certain elasticity compression volume between carousel 1 and base constitution, increased the friction moment between carousel 1 and the base constitution, offset the driving force to carousel 1 when the passenger takes, the carousel rocks when having avoided the passenger to take and has led to the seat frame to rock, has promoted the travelling comfort of taking.

In particular, as shown in fig. 4, the friction member 8 may be disposed between any of the rotating disk 1 and the base member, which is rotatable relative to the rotating disk 1. In the illustrated embodiment, the base comprises a base body 2, an inner pressure plate 3 and an outer pressure plate 4, and the inner pressure plate 3 and the outer pressure plate 4 are fixedly connected with the base body 2. The inner pressure plate 3 is in pressure connection with the inner ring of the rotary table 1, and an inner ring rolling assembly 5 is arranged between the inner pressure plate 3 and the rotary table 1. The outer pressure plate 4 is in pressure connection with the outer ring of the rotary table 1, and an outer ring rolling assembly 6 is arranged between the outer pressure plate 4 and the rotary table 1. A turntable rolling assembly 7 is arranged between the turntable 1 and the base. The base body 2, the inner pressure disc 3 and the outer pressure disc 4 all rotate relative to the rotary disc 1, so that the friction piece 8 can be arranged between the base body 2 and the rotary disc 1, can also be arranged between the inner pressure disc 3 and the rotary disc 1, and can also be arranged between the outer pressure disc 4 and the rotary disc 1.

When the base is assembled, an appropriate amount of load is applied to the external pressure plate 4 or the internal pressure plate 3 through external force so as to ensure that the compression amount of the friction piece 8 meets the requirement, and the compression amount of the friction piece 8 determines the positive pressure of the friction piece to the turntable 1, namely the magnitude of the friction force.

In particular, the friction member 8 may be an annular friction member, which may be arranged coaxially with the turntable 1, that is, the central axis of the annular friction member may be collinear with the central axis of the turntable 1.

Alternatively, the friction member 8 may be a block friction member, and a plurality of block friction members may be disposed at equal intervals along the circumference Xiang Yici of the turntable 1, in the illustrated embodiment, a block friction member is employed, and in the illustrated embodiment, eight block friction members are disposed at equal intervals along the circumference Xiang Yici of the turntable 1.

Specifically, the friction member 8 may be an integral structure, and includes a wear-resistant portion 8a, where the friction member 8 contacts the base with the wear-resistant portion 8a to form and the turntable 1; or,

as shown in fig. 6, the friction member 8 may be an assembled structure including a wear-resistant portion 8a and a supporting portion 8b, and the supporting portion 8b is assembled with the wear-resistant portion 8a to support the wear-resistant portion 8a. The material of the support portion 8b and the wear-resistant portion 8a are different, and the elasticity of the support portion 8b is greater than the elasticity of the wear-resistant portion 8a. The material of the wear-resistant portion 8a may be a hard material such as plastic, and the material of the support portion 8b may be a soft material such as polyurethane. The friction piece 8 of the multi-material, the harder wear-resisting part 8a can bear friction for a long time, and the softer supporting part 8b can provide soft support for the harder wear-resisting part 8a, so that the conditions that the wear-resisting part 8a is seriously damaged and does not rebound after deformation can be avoided, and the friction piece 8 has long service life and stable friction performance.

Specifically, as shown in fig. 3, the wear-resistant portion 8a may be provided with a cavity, and the supporting portion 8b is mounted in the cavity in an interference manner, so that the supporting portion 8b has a certain elastic compression amount. With this structure, the supporting portion 8b can provide overall support for the solid portion of the wear-resistant portion 8a, and the cavity can provide the wear-resistant portion 8a with a rebound space, so that the wear-resistant portion 8a is more easily rebound and reset.

Specifically, as shown in fig. 3, the supporting portion 8B and the wear-resistant portion 8a are engaged with each other by a concave-convex structure B, where the concave-convex structure B includes: the convex part arranged in the middle of the bottom wall of the cavity, the clamping convex parts arranged at the two sides of the convex part, and the clamping grooves arranged on the parts of the supporting part 8b positioned at the two sides of the convex part are respectively matched and clamped with the clamping convex parts at the two sides. This structure facilitates the assembly of the support portion 8b and the wear-resistant portion 8a and can ensure the connection stability of the support portion 8b and the wear-resistant portion 8a.

Specifically, as shown in fig. 3, the cavity is an open cavity, and the supporting portion 8B is provided with a notch C near the concave-convex structure B, so that the concave-convex structure B is exposed through the notch C and the opening of the cavity. By means of the arrangement, the matching condition of the concave-convex structure B can be observed through the opening of the cavity and the notch C, and the notch C also provides an operation space, so that the supporting portion 8B and the wear-resisting portion 8a are assembled more conveniently and rapidly.

In particular, the surface of the friction member 8 in contact with the turntable 1 or the base member may be provided as a curved surface, only a partial area of which is in contact with the turntable 1 or the base member. For example, in the embodiment shown in fig. 3, the top surface of the friction member 8 is a curved surface a with a convex middle and concave two sides, and only the middle area of the curved surface a is in contact with the turntable 1 or the base, so that the problems that the turntable 1 is hard to rotate and the friction member 8 is deformed and transited due to the overlarge contact area between the friction member 8 and the turntable 1 or the base are avoided. In addition, a pattern D can be arranged on the contact area so as to ensure the friction effect.

Specifically, the friction piece 8 can be provided with a limit step E, the turntable 1 or the base can be provided with a limit groove, and the limit step E of the friction piece 8 can be clamped in the limit groove, so that the friction piece 8 is prevented from shifting in the rotating process of the turntable 1. Of course, the positions of the limiting step E and the limiting groove may be interchanged.

Specifically, as shown in fig. 1, 2 and 5, the electric seat rotating mechanism includes a rotation driving motor 9, a gear 10, a toothed plate 11, an unlocking motor 12, a lock pin bracket 13, an unlocking stay 15, a lock groove bracket 17, and an elastic restoring member.

The rotary driving motor 9 is fixedly connected with the turntable 1, and specifically can be fixedly connected with the motor bracket 21 through a rotary driving motor fixing nut 24, and the motor bracket 21 is fixedly connected with the turntable 1 through a motor bracket fixing nut 23.

The gear 10 is fixedly connected with the output shaft of the rotary driving motor 9. The toothed plate 11 is fixedly connected with the base, and the gear 10 is meshed with the toothed plate 11.

The driving process is as follows: the output shaft of the rotary driving motor 9 rotates to drive the gear 10 to rotate around the central axis of the rotary driving motor, and simultaneously drives the gear 10 to revolve around the central axis of the toothed plate 11, so that the turntable 1 is driven to rotate.

The unlocking motor 12 is fixedly connected with the turntable 1, and can be fixedly connected with the motor bracket 21 through an unlocking motor fixing nut 25.

One end of the unlocking stay 15 is connected with an output shaft of the unlocking motor 12, and the other end of the unlocking stay 15 is connected with the lock pin bracket 13. In addition, a stay wire support 16 may be provided, where the stay wire support 16 is fixedly connected with the turntable 1, and is used for connecting the unlocking stay wire 15 to provide support for the unlocking stay wire 15.

The lock pin bracket 13 is rotatably connected with the turntable 1, the lock pin 14 is fixed on the lock pin bracket 13, and the elastic reset piece provides reset force for the lock pin bracket 13. Specifically, the lock pin bracket 13 may be hinged to the turntable 1 through a step nut 27 and a mounting screw 28, the elastic restoring member may be a plate spring 18 (of course, not limited to this, any member capable of providing an elastic restoring force may be used), the center of the plate spring 18 is sleeved on the step nut 27, the hanging end of the plate spring 18 is hung on the lock pin 14, and a circlip 26 may be further provided, and the plate spring 18 is clamped between the circlip 26 and the step surface of the step nut 27, so that the position of the plate spring 18 in the axial direction of the step nut 27 is fixed.

The locking groove bracket 17 is fixedly connected with the base, and the locking groove on the locking groove bracket 17 is used for being matched with the lock pin 14 to realize locking.

The unlocking process is as follows: the unlocking motor 12 pulls the lock pin bracket 13 through the unlocking pull wire 15, so that the lock pin bracket 13 rotates relative to the turntable 1, and the lock pin 14 is driven to be separated from the lock groove, thereby realizing unlocking, and the plate spring 18 stores elastic energy in the unlocking process.

The locking process is as follows: when the turntable 1 rotates to the locking position, the plate spring 18 releases elastic energy, and the lock pin bracket 13 rotates to reset under the action of elastic reset force of the plate spring 18 to drive the lock pin 14 to be clamped into the lock groove again, so that locking is realized.

Further, as shown in fig. 2, the turntable 1 may be provided with a first limit baffle 19, and the base assembly may be provided with a second limit baffle 20. When the turntable 1 rotates beyond the locking position to the limit position, the first limit baffle 19 and the second limit baffle 20 collide with each other to limit the rotation limit of the turntable 1. If the locking function is normal, then carousel 1 can rotate the locking position at most, in case locking function is unusual, then carousel 1 can cross locking position and further rotate extreme position, first limit baffle 19 and second baffle conflict when rotatory extreme position for carousel 1 can not further rotate, can avoid locking function unusual time carousel 1 unrestricted rotation to lead to the unable normal problem of using of seat like this.

The foregoing has outlined the principles and embodiments of the present application with the understanding that the present application is directed to a method and core idea of the present application. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.

Claims

1. The electric seat rotating mechanism is characterized by comprising a turntable (1), a base assembly and a friction piece (8); the rotary table (1) is rotationally connected with the base component, and the friction piece (8) is arranged between the rotary table (1) and the base component; the friction piece (8) is tightly contacted with the turntable (1) and the base, so that the friction piece (8) has a certain elastic compression amount.

2. The power seat rotating mechanism according to claim 1, wherein the friction member (8) is of an integral structure including a wear-resistant portion (8 a), the friction member (8) contacting the base assembly and the turntable (1) with the wear-resistant portion (8 a) thereof;

or, friction piece (8) is assembled structure, including wear-resisting portion (8 a) and supporting part (8 b), friction piece (8) with its wear-resisting portion (8 a) contact the base is constituteed with carousel (1), supporting part (8 b) with wear-resisting portion (8 a) equipment together is used for supporting wear-resisting portion (8 a), the elasticity of supporting part (8 b) is greater than the elasticity of wear-resisting portion (8 a).

3. The power seat rotation mechanism according to claim 2, wherein the wear-resistant portion (8 a) is provided with a cavity; the support (8 b) is mounted in the cavity in an interference fit.

4. A power seat rotation mechanism according to claim 3, wherein the support portion (8B) is engaged with the wear-resistant portion (8 a) through a concave-convex structure (B), the cavity is an open cavity, and the support portion (8B) is provided with a notch (C) in the vicinity of the concave-convex structure (B) so that the concave-convex structure (B) is exposed through the notch (C) and the opening of the cavity.

5. The power seat rotation mechanism according to claim 1, wherein a surface of the friction member (8) contacting the turntable (1) or the base member is a curved surface (a), and only a partial area of the curved surface (a) contacts the turntable (1) or the base member.

6. The power seat rotation mechanism according to claim 1, characterized in that the friction member (8) is an annular friction member arranged coaxially with the turntable (1); or the friction piece (8) is a block friction piece, and a plurality of block friction pieces are sequentially arranged at intervals along the circumferential direction of the turntable (1).

7. The power seat rotating mechanism according to any one of claims 1 to 6, wherein the base component comprises a base body (2), an outer pressing plate (4) fixedly connected with the base body (2) and an inner pressing plate (3), the power seat rotating mechanism further comprises a plurality of groups of rolling assemblies, a turntable rolling assembly (7) is arranged between the turntable (1) and the base body (2), the inner pressing plate (3) is in press fit connection with an inner ring of the turntable (1) and an inner ring rolling assembly (5) is arranged between the inner pressing plate and an inner ring of the turntable (1), and the outer pressing plate (4) is in press fit connection with an outer ring of the turntable (1) and an outer ring rolling assembly (6) is arranged between the outer ring of the turntable (1).

8. The power seat rotating mechanism according to claim 7, characterized in that the power seat rotating mechanism comprises a rotary driving motor (9) fixedly connected with the turntable (1), a gear (10), a toothed plate (11), an unlocking motor (12) fixedly connected with the turntable (1), a lock pin bracket (13) rotatably connected with the turntable (1), an unlocking stay wire (15) connected between the unlocking motor (12) and the lock pin bracket (13), a lock pin (14) fixedly connected with the lock pin bracket (13), a lock slot bracket (17) fixedly connected with the base, and an elastic reset piece;

the gear (10) is fixedly connected with an output shaft of the rotary driving motor (9), the toothed plate (11) is fixedly connected with the base, and the gear (10) is meshed with the toothed plate (11) so as to drive the turntable (1) to rotate relative to the base;

the unlocking motor (12) pulls the unlocking stay wire (15) to enable the lock pin bracket (13) to rotate relative to the rotary table (1) so as to drive the lock pin (14) to be separated from a lock groove of the lock groove bracket (17), so that unlocking is realized;

the elastic reset piece is used for providing elastic reset force for the lock pin bracket (13), so that the lock pin (14) can be clamped into the lock groove under the action of the elastic reset force when the rotary table (1) rotates to the locking position, and locking is achieved.

9. The power seat rotating mechanism according to claim 8, wherein the turntable (1) is provided with a first limit stop (19), the base assembly is provided with a second limit stop (20), and when the turntable (1) rotates beyond the locking position to the limit position, the first limit stop (19) and the second limit stop (20) are mutually abutted to limit the rotation limit of the turntable (1).

10. The automobile seat comprises a seat frame and an electric seat rotating mechanism, and is characterized in that the electric seat rotating mechanism is an electric seat rotating mechanism according to any one of claims 1-9, the turntable (1) of the electric seat rotating mechanism is fixedly connected with the seat frame, and the base of the electric seat rotating mechanism is formed to be in sliding connection with a sliding rail or fixedly connected with a vehicle body.