Electric swivel seat locking rear anti-sway device

Abstract

The present invention relates to the field of automobile seats, and more specifically to an anti-sway device for overcoming locking sway caused by gear gap when an electric seat rotates. The anti-sway device comprises: a seat, a seat fixing seat, a seat rotating mechanism connecting the seat and the seat fixing seat, and a driving motor on the seat fixing seat. The seat rotating mechanism comprises: an external gear sleeved on the output shaft of the driving motor, an internal gear fixedly connected to the seat base, the external gear meshing in the internal gear, and is characterized in that a gap locking wheel is fixedly connected to the external gear, a rubber ring is fixedly connected to the internal gear, and the gap locking wheel is pressed against the inner wall of the rubber ring. The advantages of the present invention are: ensuring that the electric rotating seat can have a good locking effect after the motor stops, and can also ensure normal rotation function. In addition, due to the design of the matching surface of the gap locking wheel and the rubber ring, the present invention can achieve a locking effect at any time without a response gap.

Description

Technical Field

[0001] The invention relates to the field of automobile seats, in particular to an anti-swaying device for overcoming locking sway caused by gear clearance when an electric seat rotates. Background Art

[0002] With the opening up of national policies, electric rotating seats in cars are gradually valued by automobile manufacturers. At present, the rotating part of electric rotating seats in cars is mainly transmitted through an internal meshing gear structure. However, due to the characteristics of the mechanical structure and processing accuracy, there is a gap between the gears. When the motor stops, the seat can still shake slightly due to the gap, and a good locking effect cannot be achieved, resulting in a poor experience. Summary of the invention

[0003] The purpose of the present invention is to provide a device for preventing an electric rotating seat from shaking after being locked, so as to solve the problem that the seat can still shake slightly after being locked, so as to overcome the shortcomings of the above-mentioned prior art.

[0004] The technical solution of the present invention is as follows: the device includes: a seat, a seat fixing seat, a seat rotation mechanism, and a driving motor, the seat rotation mechanism is used to drive the seat to rotate on the seat fixing seat, the driving motor is installed in the seat fixing seat to drive the seat rotation mechanism, the seat rotation mechanism includes: an external gear sleeved on the output shaft of the driving motor, an internal gear fixedly connected to the seat base, the external gear is meshed in the internal gear, and is characterized in that a gap locking wheel is fixedly connected to the external gear, a rubber ring is fixedly connected to the internal gear, and the gap locking wheel is pressed tightly against the inner wall of the rubber ring.

[0005] Preferably, the gap locking wheel is in the shape of a right prism, and the edges of the right prism are pressed tightly against the inner wall of the rubber ring.

[0006] Preferably, the gap locking wheel is in the shape of a regular twelve-sided prism.

[0007] Preferably, the center line of the clearance locking wheel is in a straight line with the axis center line of the external gear and the axis center line of the output shaft of the driving motor.

[0008] Preferably, the axis of the rubber ring coincides with the axis of the internal gear.

[0009] The advantages and positive effects of the present invention are:

[0010] 1. The present invention ensures that the electric rotating seat can have a good locking effect after the motor stops, and can also ensure the normal rotation function. In addition, due to the design of the matching surface of the gap locking wheel and the rubber ring, it is ensured that the present invention can achieve a locking effect under any circumstances, and there is no response gap.

[0011] 2. The present invention is an improvement on the original locking structure, with low cost, high design redundancy, small space occupancy, no coupling requirements with other components and functions, no need for additional driving force, and obvious cost advantages over traditional structures such as complex anti-backlash wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 It is an exploded view of the overall structure of the present invention.

[0014] Figure 3 It is a schematic diagram of a seat rotation mechanism of the present invention.

[0015] Figure 4 It is a matching diagram of the gap locking wheel and the rubber ring of the present invention.

[0016] Reference numerals: seat cushion 1 , seat body connecting seat 2 , drive motor 3 , external gear 4 , internal gear 5 , regular twelve-sided prism 6 , rubber ring 7 . DETAILED DESCRIPTION

[0017] See also Figure 1 and Figure 2 The present invention comprises: a seat cushion 1, a seat body connecting seat 2, a seat rotating mechanism, and a driving motor 3, wherein the seat rotating mechanism is used to drive the seat cushion 1 to rotate on the seat body connecting seat 2, and the driving motor 3 is installed in the seat body connecting seat 2 to drive the seat rotating mechanism, and the seat rotating mechanism comprises: an outer gear 4 sleeved on the output shaft of the driving motor 3, the outer gear 4 rotates coaxially with the output shaft, an inner gear 5 bolted to the seat body connecting seat 2, the inner gear 5 is coaxial with the rotation center of the seat, the outer gear 4 is meshed in the inner gear 5, the outer gear 4 is a driven member in the internal meshing gear transmission pair, and the rotation of the outer gear drives the rotation of the seat to realize the seat function, a regular twelve-sided prism 6 is fixedly connected to the outer gear 4, the regular twelve-sided prism 6 is key-connected with the output shaft of the driving motor 3 and the outer gear 4 and rotates coaxially, a rubber ring 7 is fixedly connected to the inner gear 5, the regular twelve-sided prism 6 is pressed against the inner wall of the rubber ring 7, and the regular twelve-sided prism 6 is used to lock the rubber ring 7.

[0018] Working principle: the edges of the regular dodecagonal prism 6 are pressed against the inner wall of the rubber ring 7, causing the rubber ring 7 to deform elastically, and a mating surface is formed between the deformation area of ​​the rubber ring 7 and the edge of the regular dodecagonal prism 6. Due to the shape of the mating surface, the regular dodecagonal prism 6 of the rubber ring needs to overcome a relatively stable resistance when rotating to deform the rubber ring. When the electric rotating seat is driven by the driving motor 3 to rotate, the regular dodecagonal prism 6 and the rubber ring 7 move relative to each other, and the rotational resistance between the regular dodecagonal prism 6 and the rubber ring 7 has little effect on the output power of the motor. When the motor stops, although there is still a gap in the internal meshing gear transmission pair, the shaking of the seat needs to overcome the rotational resistance between the regular dodecagonal prism 6 and the rubber ring 7. The external force generated by manpower is not enough to overcome the resistance generated by parameter design, thereby achieving the purpose of overcoming the locking shaking.

Claims

1. A device for preventing a swaying after locking an electric rotating seat, comprising: A seat, a seat fixing seat, a seat rotation mechanism and a driving motor, wherein the seat rotation mechanism is used to drive the seat to rotate on the seat fixing seat, and the driving motor is installed in the seat fixing seat to drive the seat rotation mechanism, and the seat rotation mechanism comprises: an external gear sleeved on the output shaft of the driving motor, an internal gear fixedly connected to the seat base, the external gear meshing in the internal gear, and is characterized in that a gap locking wheel is fixedly connected to the external gear, a rubber ring is fixedly connected to the internal gear, and the gap locking wheel is pressed against the inner wall of the rubber ring; The shape of the gap locking wheel is a regular prism, and the edges of the regular prism are pressed tightly against the inner wall of the rubber ring; The shape of the gap locking wheel is a regular twelve-sided prism; The center line of the clearance locking wheel, the axis line of the external gear, and the axis line of the output shaft of the driving motor are located on a straight line; The edges of the regular dodecagonal prism are pressed against the inner wall of the rubber ring, causing the rubber ring to deform elastically. A matching surface is formed with the edges of the regular dodecagonal prism in the deformation area of ​​the rubber ring. Due to the shape of the matching surface, the regular dodecagonal prism of the rubber ring needs to overcome a relatively stable resistance when rotating to cause the rubber ring to deform.

2. The anti-sway device after locking the electric rotating seat according to claim 1 is characterized in that: The axis of the rubber ring coincides with the axis of the internal gear.

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