CN216761531U

CN216761531U - Electric quick folding mechanism for automobile seat backrest

Info

Publication number: CN216761531U
Application number: CN202122778528.XU
Authority: CN
Inventors: 薛冰洋; 徐海祥; 刘超; 石海松; 李承晓; 曹阳
Original assignee: Changchun Fusheng Automobile Technology Research And Development Co ltd
Current assignee: Changchun Fusheng Automobile Technology Research And Development Co ltd
Priority date: 2021-11-13
Filing date: 2021-11-13
Publication date: 2022-06-17
Anticipated expiration: 2031-11-13

Abstract

The utility model discloses an electric quick turnover mechanism for an automobile seat backrest, which belongs to the technical field of vehicle parts and comprises a turnover assembly and a driving assembly, wherein the turnover assembly and the driving assembly are arranged on the inner side of a seat backrest frame, one end of the turnover assembly penetrates out of the seat backrest frame to be connected with an automobile body, and the other end of the turnover assembly is connected with an output shaft of the driving assembly. The utility model provides an electric quick turnover mechanism for a seat backrest of an automobile, which adopts a planet wheel principle to realize the functions of reducing speed and increasing torque, can increase the output torque of the mechanism by setting a corresponding transmission ratio for the seat backrest with larger weight, realizes backrest turnover, and avoids the phenomena of over low efficiency and heating of a motor. Through cooperating with the torsional spring, can reduce the time difference that the back of the seat fell and lift up, make the time of lifting up shorten, can further increase the output torque of this whole turnover mechanism, realize turning over fast of the back that weight is bigger.

Description

Electric quick folding mechanism for automobile seat backrest

Technical Field

The utility model discloses an electric quick folding mechanism for an automobile seat backrest, and belongs to the technical field of vehicle parts.

Background

Along with the development of new energy automobiles, people have higher and higher requirements on automobile interior decoration intellectualization and seat comfort, and the technical requirements of an automobile seat backrest folding mechanism, such as the requirement on bearing strength, are higher and higher. Among the present seat turns over a mechanism, turn over a time for a long time mostly and realize turning over a function for the mode that angle modulation ware and quick motor combined, because the angle modulation ware is a poor planetary wheel mechanism of tooth, the back is the fixed connection mode with the planet wheel, can't realize the dead axle and rotate, leads to having the vision in turning over a motion process and rocks the problem, experiences the effect not good enough, therefore the car seat scray of traditional type must be difficult to satisfy the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of poor stability and low efficiency of the conventional automobile seat folder, and provides an electric quick turnover mechanism for an automobile seat backrest.

The utility model aims to solve the problems by the following technical scheme:

the utility model provides an electronic quick turnover mechanism of car seat back, is including setting up folding assembly and the drive assembly in back frame side inboard of seat, it wears out back frame side board and body connection to turn over an assembly one end, the other end and the output shaft of drive assembly.

Preferably, the turnover assembly comprises a sector tooth fixing support fixed on the inner side of a seat back frame side plate, sun teeth are rotationally arranged between the sector tooth fixing support and the seat back frame side plate through a rotating shaft, one end of the rotating shaft penetrates out of the seat back frame side plate to be connected with a vehicle body, planet gears are further rotationally arranged on the inner side of the seat back frame side plate and matched with the sun teeth, and one end of the planet gears is connected with an output shaft of the driving assembly.

Preferably, the drive assembly comprises a transmission and a motor which are connected with each other, and an output shaft of the transmission is connected with one end of the planetary gear.

Preferably, the turnover assembly further comprises a torsion spring, wherein the torsion spring is sleeved on the rotating shaft, and two ends of the torsion spring are respectively fixed on the sector gear fixing support and the sun gear.

Preferably, the motor is a brushless dc motor.

The utility model has the beneficial effects that:

the utility model provides an electric quick folding mechanism for an automobile seat backrest, which can realize speed reduction and torque increase functions by adopting a planet wheel principle, can increase the output torque of the mechanism by setting a corresponding transmission ratio for the seat backrest with larger weight, realizes backrest turnover, and avoids the phenomena of low efficiency and heating of a motor. Through cooperating with the torsional spring, can reduce the time difference that the back of the seat fell and lift up, make the time of lifting up shorten, can further increase the output torque of this whole turnover mechanism, realize turning over fast of the back that weight is bigger.

Drawings

Fig. 1 is an isometric view of an electric quick folding mechanism for a vehicle seat back according to the present invention.

Fig. 2 is an isometric view of an electric quick folding mechanism for a vehicle seat back according to the present invention.

Fig. 3 is a partial isometric view of an electric quick folding mechanism for a vehicle seat back according to the present invention.

The seat backrest comprises a seat backrest frame side plate 1, a drive assembly 2, a motor 21, a transmission 22, a turnover assembly 3, a planet gear 31, a sector gear fixing support 32, a rotating shaft 33, a sun gear 34, a vehicle body 4 and a seat backrest frame 5.

Detailed Description

The utility model is further illustrated below with reference to the accompanying figures 1-3:

the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, a first embodiment of the present patent provides an electric quick folding mechanism for a car seat back based on the prior art, comprising: the folding assembly 3 and the driving assembly 2 are respectively arranged on the inner side of the seat back frame side plate 1, one end of the folding assembly 3 penetrates through the seat back frame side plate 1 to be connected with a vehicle body 4, the other end of the folding assembly is connected with an output shaft of the driving assembly 2, the seat back frame side plate 1 is fixed on one side of the seat back frame 5, and the specific structure and the connection mode of the above parts are described one by one.

As shown in fig. 3, the folding assembly 3 includes: the seat back frame comprises planet gears 31, a sector gear fixing support 32, a rotating shaft 33, sun teeth 34 and torsion springs, wherein the sector gear fixing support 32 is fixed on the inner side of a seat back frame side plate 1 through rivets, the sun teeth 34 are rotatably installed between the sector gear fixing support 32 and the seat back frame side plate 1 through the rotating shaft 33, and the torsion springs are sleeved on the rotating shaft 33 and two ends of the torsion springs are respectively fixed on the sector gear fixing support 32 and the sun teeth 34. The pivot 33 one end is worn out the seat back frame curb plate 1 and is connected with automobile body 4, and planet tooth 31 is rotatory the installation in seat back frame curb plate 1 inboard also, and planet tooth 31 cooperatees with sun tooth 34, and drive assembly 2 includes: the transmission 22 is fixed on the inner side of the seat back frame side plate 1 through rivets, an output shaft of the transmission 22 is connected with one end of the planetary gear 31, the motor 21 is fixed on the transmission 22 through bolts, a main shaft of the motor is connected with an input end of the transmission 22, and the motor 21 is a direct-current brushless motor.

The specific working mode is as follows:

the motor 21 drives the transmission 22 to rotate, the transmission 22 drives the planet gears 31 to rotate, the planet gears 31 are matched with the sun teeth 34, the planet teeth 31 drive the sun teeth 34 to rotate, the time difference of the seat backrest falling and lifting can be reduced due to the matching of the sun teeth 34 and the torsion springs, and in the backrest lifting process, the torsion springs can assist the motor to offset part of rotating resistance generated due to gravity, so that the lifting time is shortened, the time difference of the backrest falling and the backrest falling process is reduced, the output torque of the integral turnover mechanism can be further increased, and the backrest with larger weight can be quickly turned over.

While embodiments of the utility model have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. Therefore, the utility model is not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept as defined by the claims and their equivalents.

Claims

1. The utility model provides an electronic quick book of car seat back turns over mechanism which characterized in that, turns over assembly (3) and drive assembly (2) including setting up in backrest frame curb plate (1) inboard, turn over assembly (3) one end and wear out backrest frame curb plate (1) and be connected with automobile body (4), the output shaft of the other end and drive assembly (2).

2. The electric quick turnover mechanism for the backrest of the car seat as claimed in claim 1, characterized in that the turnover assembly (3) includes a sector tooth fixing support (32) fixed on the inner side of the backrest frame side plate (1), sun teeth (34) are rotatably arranged between the sector tooth fixing support (32) and the backrest frame side plate (1) through a rotating shaft (33), one end of the rotating shaft (33) penetrates out of the backrest frame side plate (1) to be connected with the car body (4), planetary gears (31) are further rotatably arranged on the inner side of the backrest frame side plate (1), the planetary gears (31) are matched with the sun teeth (34), and one end of the planetary gears (31) is connected with an output shaft of the driving assembly (2).

3. The electric quick folding mechanism for the automobile seat backrest is characterized in that the driving assembly (2) comprises a transmission (22) and a motor (21) which are connected with each other, and an output shaft of the transmission (22) is connected with one end of a planetary gear (31).

4. The electric fast folding mechanism for the backrest of the car seat as claimed in claim 3, wherein said folding assembly (3) further comprises a torsion spring, said torsion spring is sleeved on the rotation shaft (33) and both ends of said torsion spring are fixed on the sector gear fixing bracket (32) and the sun gear (34), respectively.

5. The electric quick folding mechanism for the automobile seat backrest is characterized in that the motor (21) is a brushless DC motor.