CN114954167B

CN114954167B - Vehicle seat structure and vehicle

Info

Publication number: CN114954167B
Application number: CN202110216046.7A
Authority: CN
Inventors: 周青; 程锦; 黄媛
Original assignee: Tsinghua University
Current assignee: Tsinghua University
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2023-09-26
Anticipated expiration: 2041-02-26
Also published as: CN114954167A

Abstract

The invention relates to a vehicle seat module and a vehicle. The vehicle seat structure includes a seat, a restraint module, a top anchor module, a bottom anchor module, and a connection module; the upper anchor point and the lower anchor point of the constraint module are arranged on the seat; two ends of the connecting module are respectively hinged with the seat and the top anchoring module; the top anchoring module is used for driving the chair back to adjust the inclination angle of the chair back, and the top anchoring module and the bottom anchoring module are also used for synchronously driving the chair to rotate around the vertical direction. The top anchoring module of the vehicle seat structure can synchronously drive the seat to rotate around the vertical shaft with the bottom anchoring module on the premise of adjusting the inclination angle of the seat back of the seat, so that the transmission path of force can be increased in the collision process, namely, the path of transmitting inertia force to the roof is increased, the requirements on the seat angle adjuster and the rigidity of the seat back are reduced, and the cost and the quality of the seat are reduced.

Description

Vehicle seat structure and vehicle

Technical Field

The invention relates to the technical field of vehicle safety, in particular to a vehicle seat structure and a vehicle.

Background

In most existing vehicle seat arrangements, the seat is mostly arranged in the vehicle forward direction, and the seat is provided with an occupant restraint device of a seat belt and an airbag. Taking the frontal collision process as an example, the occupant moves the torso forward relative to the vehicle due to inertia during the initial stage of the collision, but the occupant's upper torso will be subjected to rearward forces due to the restraint of the seat belt on the shoulders and chest. After the airbag is unfolded, the chest and the head of the passenger can be subjected to another deceleration acting force due to the deformation of the airbag, so that the upper trunk of the passenger is controlled, and the damage caused by collision (secondary collision) with the hard part of the interior trim is avoided.

At present, the upper anchor point of the safety belt of most passenger vehicles is fixed on the B column of the vehicle, and the air bag is mostly positioned in a mechanism in front of an occupant. The shoulder belt portion of the seat belt should be in contact with a stronger portion of the occupant's shoulder under normal conditions, but the position of the upper anchor point of the seat belt relative to the seat will change during adjustment of the seat by different sized occupants, and the shoulder belt is often in non-standard contact with the occupant. In a highly autonomous car, where the position and orientation of the occupant can be freely adjusted, it is apparent that fixing the upper anchor of the seat belt to the B pillar of the car cannot achieve the desired restraint in any position and orientation, and one solution is to fix the upper anchor of the seat belt to the position of the seat shoulder, the relative position of the upper anchor of the seat belt to the seat changes less during adjustment of the seat by the occupant, and the seat belt can more desirably restrain the movement of the upper torso of the occupant. Meanwhile, the safety belt integrated on the seat can well reduce impact damage of the seat belt with rebound passengers after the safety belt is loosened when in a tail collision.

If the upper anchor point is adopted to set up the safety belt on seat back upper portion, during the collision, the reaction force that retrains passenger's motion will no longer can transmit on the great B post of rigidity, but applied on the seat back and the angle modulation ware that the back of the chair is connected with the bottom, the moment that the atress structure of cantilever beam type made back of the chair and angle modulation ware need bear like this is bigger, the requirement to its rigidity is higher, and then lead to the cost and the weight increase of seat, consequently, often in luxurious motorcycle type, be difficult to use in some small-size or low-cost motorcycle types.

Disclosure of Invention

Accordingly, it is necessary to provide a vehicle seat structure and a vehicle, in which the seat belt provided at the upper anchor point in the upper portion of the seat back causes an increase in the cost and weight of the seat.

A vehicle seat structure, the vehicle seat structure comprising: a seat, a restraint module, a top anchor module, a bottom anchor module, and a connection module;

the upper anchor point and the lower anchor point of the constraint module are connected with the seat;

the first end of the connecting module is hinged with the chair back of the chair, the second end of the connecting module is hinged with the top anchoring module, and the first end and the second end of the connecting module are distributed relatively;

the top anchoring module is used for driving the chair back to rotate so as to adjust the inclination angle of the chair back, and the top anchoring module and the bottom anchoring module are also used for synchronously driving the chair to rotate around the vertical direction.

In one embodiment thereof, the vehicle seat structure further comprises: the environment sensing and risk pre-judging module is used for acquiring road environment information of vehicle driving and judging whether collision risk exists on the vehicle or not based on the road environment information;

and the control module is used for driving the top anchoring module and/or the bottom anchoring module to drive the seat to rotate by a preset angle when the collision risk exists in the vehicle.

In one embodiment thereof, the top anchor module comprises: the device comprises a top fixing piece, a top rotating piece, a hanging seat and a first driving piece;

the top rotating piece is rotatably arranged on the top fixing piece, and a first linear track is arranged on the top rotating piece;

the hanging seat is hinged with the second end of the connecting module, and the first driving piece is arranged on the hanging seat and used for driving the hanging seat to do linear motion along the first linear track.

In one embodiment, the first linear track is a rack structure;

the first driving member includes: the device comprises a first motor, a first conical gear arranged on an output shaft of the first motor, a second conical gear meshed with the first conical gear, a first worm coaxially connected with the second conical gear, a first worm wheel meshed with the first worm, and a first gear coaxially connected with the first worm wheel and meshed with the first linear track, wherein the first conical gear is perpendicular to the axis of the second conical gear.

In one embodiment, the top rotating member is provided with a first guide groove, and the length direction of the first guide groove is the same as the linear motion direction of the suspension seat;

the first linear track is arranged at the bottom of the first guide groove, the top of the suspension seat is provided with a guide protrusion, and the guide protrusion is limited in the first guide groove in the upper and lower directions and can move along the length direction of the first guide groove.

In one embodiment, the top mount has a second linear rail disposed thereon;

the first linear rail can be connected with the second linear rail along with the rotation of the top rotating piece, so that the hanging seat moves from the first linear rail to the second linear rail and moves from the second linear rail to the first linear rail.

In one embodiment thereof, the bottom anchor module comprises: the second driving piece is arranged between the mounting seat and the bottom plate of the seat;

the second driving piece is used for driving the seat to rotate relative to the mounting seat.

In one embodiment thereof, the second driving member includes: the second motor is fixedly arranged on the mounting seat, the second worm is arranged on an output shaft of the second motor and rotatably arranged on the mounting seat, the second worm wheel is meshed with the second worm and rotatably arranged on the mounting seat, the second gear is meshed with the second worm wheel and rotatably arranged on the mounting seat, and the third gear is meshed with the second gear and fixedly arranged on the bottom plate.

In one embodiment thereof, the seat comprises: a bottom plate, a chair back and a cushion;

the vehicle seat structure further includes: cushion adjustment module, cushion adjustment module includes: the seat cushion comprises a bottom plate, a third motor, a fourth gear, a fifth gear, a screw rod and a screw rod nut, wherein the bottom plate is provided with the third motor, the fourth gear is arranged on an output shaft of the third motor, the fifth gear is meshed with the fourth gear, the screw rod is coaxially connected with the fifth gear, and the screw rod nut is arranged on the screw rod, and the screw rod nut is connected with the seat cushion.

A vehicle comprising a vehicle seat structure as claimed in any one of the preceding claims.

According to the vehicle seat structure and the vehicle, the top anchoring module can synchronously drive the seat to rotate around the vertical direction on the premise of adjusting the inclination angle of the seat back of the seat, so that a force transmission path can be increased in the collision process, namely, the path for transmitting inertia force to the roof is increased, the requirements on the angle regulator and the rigidity of the seat back of the seat are reduced, and the cost and the quality of the seat are reduced. In addition, the vehicle seat structure also has the characteristics of simple structure and low preparation cost.

Drawings

FIG. 1 is a schematic view of a vehicle seat structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of a seat mated with a roof anchor module in a first orientation according to an embodiment of the present invention;

FIG. 3 is a schematic view of a seat mated with a roof anchor module in a second orientation according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating the cooperation of a top anchor module and a connection module according to an embodiment of the present invention;

FIG. 5 is a partial schematic view of a roof anchor module according to one embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a mounting base according to an embodiment of the present invention;

FIG. 7 is a schematic view illustrating an inside of a mounting base according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a seat cushion of a seat according to an embodiment of the present invention;

fig. 9 is a schematic diagram of cooperation between a cushion adjusting module and a bottom plate according to an embodiment of the present invention;

fig. 10 is a schematic workflow diagram of a vehicle seat structure according to an embodiment of the invention.

Wherein, the reference numerals in the drawings are as follows:

100. a seat; 110. a bottom plate; 111. a mounting base; 120. a chair back; 130. a cushion; 200. a top anchor module; 210. a top mount; 211. a second linear rail; 220. a top rotating member; 220a, a first guide groove; 221. a first linear track; 230. a hanging seat; 240. a first driving member; 241. a first motor; 242. a first bevel gear; 243. a second bevel gear; 244. a first worm; 245. a first worm wheel; 246. a first gear; 300. a bottom anchor module; 310. a second driving member; 311. a second motor; 312. a second worm; 313. a second gear; 314. a third gear; 400. a connection module; 500. a cushion adjustment module; 510. a third motor; 520. a fourth gear; 530. a fifth gear; 540. a screw rod; 550. a lead screw nut; 560. and (5) supporting the rod.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

As shown in fig. 1, an embodiment of the present invention provides a vehicle seat structure including: a seat 100, restraint modules (not shown in the figures), a top anchor module 200, a bottom anchor module 300, and a connection module 400; the upper and lower anchor points of the restraint module are connected with the seat 100; the first end of the connection module 400 is hinged with the chair back 120 of the chair 100, the second end is hinged with the top anchoring module 200, and the first end and the second end of the connection module 400 are distributed oppositely; the top anchoring module 200 is used for driving the chair back 120 to rotate so as to adjust the inclination angle of the chair back 120, and the top anchoring module 200 and the bottom anchoring module 300 are also used for synchronously driving the chair 100 to rotate around the vertical direction.

As an example, the restraint module is a three-point seat belt, the upper anchor of the restraint module may be secured to a headrest (see fig. 2 and 3) of the seatback 120 of the seat 100, and the lower anchor of the restraint module may be secured to the floor 110 of the seat 100.

As an example, as shown in fig. 2 to 4, the connection module 400 is a rigid bar structure, and both ends of the rigid bar structure are hinged to the seat 100 and the roof anchor module 200 using pins, respectively.

In the vehicle seat structure described above, the top anchor module 200 can drive the seat 100 to rotate around the vertical direction in synchronization with the bottom anchor module 300 on the premise of adjusting the inclination angle of the seat back 120 of the seat 100, so that a transmission path of force can be increased in the collision process, that is, a path of transmitting inertial force to the roof is increased, and requirements on the recliner of the seat 100 and the rigidity of the seat back 120 are reduced, thereby reducing the cost and the quality of the seat 100. In addition, the vehicle seat structure also has the characteristics of simple structure and low preparation cost.

In some embodiments of the invention, the vehicle seat structure further comprises: an environmental awareness and risk prognosis module and a control module (not shown in the figures); the environment perception and risk prejudging module is used for acquiring road environment information of the vehicle running and judging whether the vehicle has collision risk or not based on the road environment information; the control module is used to drive the top anchor module 200 and/or the bottom anchor module 300 to rotate the seat 100 by a preset angle when there is a risk of collision of the vehicle. The control module may control the top anchor module 200 and/or the bottom anchor module 300 to adjust the orientation of the seat 100 prior to a crash such that the seat 100 can be rotated to a particular position in different crash orientations such that the seat belt is effectively acting on the occupant's body.

Optionally, the environment sensing and risk pre-judging module includes a road environment sensing unit and a risk pre-judging unit, where the road environment sensing unit may be a camera, a distance sensor, a radar, and other components, and may obtain parameters such as a distance between the vehicle and surrounding obstacles, a speed of the obstacles, and a running direction of the obstacles. The risk pre-judging unit can judge whether the vehicle has collision risk or not through modeling and calculation. The control module is a PLC (Programmable Logic Controller ).

As shown in fig. 10, the passenger sits in the seat and firstly performs comfort adjustment, at this stage, the passenger can control the seat independently or by a control module, and during driving, the passenger can continuously control and adjust the comfort. When the vehicle is started, the vehicle estimates the running risk in real time after sensing the running environment of the vehicle through the environment sensing and risk pre-judging module. And when the risk reaches a certain threshold (the threshold can be parameters such as the speed of a vehicle, the distance from an obstacle and the like), an early warning signal is sent out. At this time, the control module has obtained the position information of the free seat 100, and can determine whether adjustment is required according to the risk level, if so, the position of the seat 100 is adjusted to enter or approach the safety range before the collision, and the seat is locked after the adjustment is completed. If the vehicle stops after the vehicle avoids the risk through deceleration or turning, the passenger can leave the seat, otherwise, the vehicle risk judgment is continued.

In some embodiments of the present invention, as shown in fig. 2-4, a top anchor module 200 includes: a top fixing member 210, a top rotating member 220, a hanging seat 230, and a first driving member 240; the top rotating member 220 is rotatably disposed on the top fixing member 210, and a first linear rail 221 (see fig. 4 and 5) is disposed on the top rotating member 220; the hanger bracket 230 is hinged to the second end of the connection module 400, and the first driving member 240 is disposed on the hanger bracket 230 and serves to drive the hanger bracket 230 to move linearly along the first linear rail 221. The first driving member 240 is configured to provide a driving force capable of rectilinear motion to the top anchor module 200, and the top anchor module 200 can drive the bottom anchor module 300 to rectilinear motion during rectilinear motion, i.e. the top anchor module 200 and the bottom anchor module 300 share a driving force capable of rectilinear motion.

Optionally, a bearing is disposed between the top fixing member 210 and the top rotating member 220, an outer ring of the bearing is connected to the top fixing member 210, and an inner ring of the bearing is connected to the top rotating member 220. The bearings facilitate sliding of the top rotator 220 in the top fixture 210. The top mount 210 may be secured to the roof of the vehicle by screws, welding, or the like.

In some embodiments of the present invention, as shown in fig. 5, the first linear rail 221 is a rack; the first driving member 240 includes: the first motor 241, a first bevel gear 242 provided on an output shaft of the first motor 241, a second bevel gear 243 engaged with the first bevel gear 242, a first worm 244 coaxially connected with the second bevel gear 243, a first worm wheel 245 engaged with the first worm 244, and a first gear 246 coaxially connected with the first worm wheel 245 and engaged with the first linear rail 221, wherein the first bevel gear 242 is perpendicular to an axis of the second bevel gear 243. When the first motor 241 is operated, the first bevel gear 242 rotates to drive the second bevel gear 243 to rotate, the first worm 244 also rotates to drive the first worm wheel 245 to rotate, and the first gear 246 moves linearly along the first linear rail 221 under the rotation of the first worm wheel 245. The first driving piece 240 with the structure has the characteristic of compact structure, and the first worm 244 and the first worm wheel 245 can form a self-locking structure, so that the locking at any position can be realized, and the hanging seat 230 can be stably stopped at any position on the first linear track 221.

Alternatively, the first motor 241 is fixedly disposed in the suspension holder 230, the first worm 244 is rotatably disposed in the suspension holder 230 through a rotation shaft, and the first worm wheel 245 and the first gear 246 share a rotation shaft and are rotatably disposed in the suspension holder 230. The suspension 230 may have a shell-like structure.

Optionally, the first motor 241 is electrically connected to a control module, and the control module is configured to control the steering and the opening and closing of the first motor 241, so as to control the linear motion direction and the motion distance of the seat 100.

Further, in some embodiments of the present invention, as shown in fig. 5, the top rotating member 220 has a first guiding groove 220a thereon, and the length direction of the first guiding groove 220a is the same as the linear motion direction of the suspension base 230; the first linear rail 221 is provided at the bottom of the first guide groove 220a, and the top of the hanger 230 is provided with a guide protrusion (not shown in the drawing) which is limited in the first guide groove 220a in the up-down direction and is movable in the length direction of the first guide groove 220 a. In this way, the suspension base 230 and the first driving member 240 can be prevented from falling from the first linear rail 221 by gravity of the suspension base and the first driving member, so as to ensure the normal operation of the top anchoring module 200.

Alternatively, the cross-sectional shape of the first guide groove 220a is a T-shape as shown in fig. 5. Wherein the cross section of the guide protrusion is the same as the shape of the cross section of the first guide groove 220 a. Alternatively, both ends of the first guide groove 220a are respectively penetrated with the outside, facilitating the installation of the guide protrusions into the first guide groove 220 a.

With the top anchor module 200 including the top fixture 210, the top rotator 220, the hanger 230, and the first driver 240, as shown in fig. 4, in some embodiments of the present invention, the top fixture 210 is provided with a second linear rail 211; the first linear rail 221 may be engaged with the second linear rail 211 along with the rotation of the top rotating member 220, so that the hanger 230 moves from the first linear rail 221 to the second linear rail 211 or from the second linear rail 211 to the first linear rail 221. The length direction of the second linear rail 211 is the same as the front-rear direction of the vehicle. By the engagement of the first linear rail 221 and the second linear rail 211, the position adjustment range of the seat 100 in the vehicle front-rear direction can be increased.

Alternatively, the second linear rail 211 has the same structure as the first linear rail 221, and is a rack structure engaged with the first gear 246. The top fixing piece 210 is provided with a second guiding groove, and the length direction of the second guiding groove is the same as the movement direction of the hanging seat 230; the second linear rail 211 is disposed at the bottom of the second guide groove, and the guide protrusion of the hanger 230 is upwardly and downwardly limited in the second guide groove and is movable along the length direction of the second guide groove.

In some embodiments of the present invention, as shown in fig. 3, 6 and 7, the bottom anchor module 300 includes: a mounting base 111 and a second driving member 310 disposed between the mounting base 111 and the floor 110 of the seat 100; the second driving member 310 is used to drive the seat 100 to rotate relative to the mounting base 111. The bottom anchor module 300 and the top anchor module 200 may share a rotatable driving force that may drive the bottom anchor module 300 to rotate, and the bottom anchor module 300 may drive the top anchor module 200 to rotate during rotation.

In some embodiments of the present invention, as shown in fig. 7, the second driving member 310 includes: the second motor 311 fixedly provided on the mount 111, the second worm 312 provided on an output shaft of the second motor 311 and rotatably provided on the mount 111, the second worm wheel engaged with the second worm 312 and rotatably provided on the mount 111, the second gear 313 engaged with the second worm wheel and rotatably provided on the mount 111, and the third gear 314 engaged with the second gear 313 and fixedly provided on the base plate 110. When the second motor 311 is operated, the second worm 312 rotates to drive the second worm wheel to rotate, and the second gear 313 also rotates, because the third gear 314 is fixed on the bottom plate 110, the third gear 314 rotates relative to the mounting base 111 under the engaging force of the second gear 313. Because the third gear 314 is fixedly disposed on the floor 110, the seat 100 rotates with respect to the mounting 111. Of course, the mounting base 111 may be mounted to other position adjustment mechanisms of the seat 100 (e.g., adjustment mechanisms for the overall front-to-rear position of the seat 100). The second driving member 310 with the structure has the characteristic of compact structure, and the second worm 312 and the second worm wheel can form a self-locking structure, so that the locking at any position can be realized, and the bottom rotating member 330 can be rotated to any position to stop.

Alternatively, the second motor 311 may be electrically connected to a control module, where the control module is used to control the on/off of the second motor 311, and thus control the rotation angle of the seat 100.

In some embodiments of the present invention, as shown in fig. 3, the seat 100 includes: a floor 110, a seatback 120, and a seat cushion 130 (see fig. 8); the vehicle seat structure further includes: a cushion adjustment module 500; the cushion adjustment module 500 includes: a third motor 510 provided on the base plate 110, a fourth gear 520 provided on an output shaft of the third motor 510, a fifth gear 530 engaged with the fourth gear 520, a screw 540 coaxially connected with the fifth gear 530, and a screw nut 550 provided on the screw 540, wherein the screw nut 550 is connected with the seat cushion 130. When the third motor 510 is operated, the fourth gear 520 rotates to further drive the fifth gear 530 to rotate, the screw 540 also rotates, and the screw nut 550 further drives the cushion 130 to perform linear motion. The position of the cushion 130 can be adjusted under different collision conditions, so as to achieve the purposes of adjusting the posture of the passengers and reducing the injury of the passengers.

Optionally, the lead screw nut 550 is an elongated structure. As shown in fig. 9, both ends of the lead screw nut 550 are connected to the seat cushion 130 through support rods 560. The supporting rod 560 and the cushion 130 have an included angle greater than 0 ° therebetween, so that the screw nut 550 is prevented from self-locking, and the screw nut 550 is ensured to effectively adjust the position of the seat 100 under the operation of the third motor 510.

Optionally, the third motor 510 is electrically connected to a control module, and the control module is configured to control the on/off of the third motor 510, so as to control the sliding distance of the seat cushion 130 on the bottom plate 110.

Optionally, the angle between the seat back 120 and the base plate 110 is adjustable. Thus, the included angle between the seat back 120 and the bottom plate 110 can be adjusted under different collision conditions, so as to achieve the purposes of adjusting the posture of the occupant and reducing the injury of the occupant. Wherein, the included angle between the chair back 120 and the bottom plate 110 can be adjusted by a motor and other mechanisms. The motor and other structures may be electrically connected to a control module, which is used to control the on/off of the motor and other structures to control the angle between the chair back 120 and the base plate 110.

Another embodiment of the present invention provides a vehicle including a vehicle seat structure as described in any one of the above.

As one example, the vehicle may be an unmanned vehicle.

As described above, the top anchor module 200 of the vehicle seat structure can synchronously drive the seat 100 to do linear motion or rotate around a vertical direction with the bottom anchor module 300 on the premise of adjusting the inclination angle of the seat back 120 of the seat 100, so that a force transmission path can be increased in the collision process, that is, a path for transmitting inertial force to the roof is increased, and the requirements on the recliner of the seat 100 and the rigidity of the seat back 120 are reduced, thereby reducing the cost and the quality of the seat 100. In addition, the vehicle seat structure also has the characteristics of simple structure and low preparation cost.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A vehicle seat structure, characterized in that the vehicle seat structure comprises: a seat (100), a restraint module, a top anchor module (200), a bottom anchor module (300), and a connection module (400);

the upper anchor point and the lower anchor point of the constraint module are connected with the seat (100);

the first end of the connecting module (400) is hinged with the chair back (120) of the chair (100), the second end of the connecting module (400) is hinged with the top anchoring module (200), and the first end and the second end of the connecting module (400) are distributed relatively;

the top anchoring module (200) is used for driving the chair back (120) to rotate so as to adjust the inclination angle of the chair back (120), and the top anchoring module (200) and the bottom anchoring module (300) are also used for synchronously driving the chair (100) to rotate around the vertical direction;

wherein the top anchor module (200) comprises: a top fixing member (210), a top rotating member (220), a suspension base (230), and a first driving member (240); the top rotating piece (220) is rotatably arranged on the top fixing piece (210), and a first linear track (221) is arranged on the top rotating piece (220); the hanging seat (230) is hinged with the second end of the connecting module (400), and the first driving piece (240) is arranged on the hanging seat (230) and used for driving the hanging seat (230) to do linear motion along the first linear track (221).

2. The vehicle seat structure according to claim 1, characterized in that the vehicle seat structure further comprises: the environment sensing and risk pre-judging module is used for acquiring road environment information of vehicle driving and judging whether collision risk exists on the vehicle or not based on the road environment information;

the control module is used for driving the top anchoring module (200) and/or the bottom anchoring module (300) to drive the seat (100) to rotate by a preset angle when the collision risk exists in the vehicle.

3. The vehicle seat arrangement according to claim 1, characterized in that the first linear rail (221) is a rack arrangement;

the first driving member (240) includes: the device comprises a first motor (241), a first conical gear (242) arranged on an output shaft of the first motor (241), a second conical gear (243) meshed with the first conical gear (242), a first worm (244) coaxially connected with the second conical gear (243), a first worm wheel (245) meshed with the first worm (244) and a first gear (246) coaxially connected with the first worm wheel (245) and meshed with the first linear track (221), wherein the first conical gear (242) is perpendicular to the axis of the second conical gear (243).

4. A vehicle seat structure according to claim 3, wherein the top rotating member (220) has a first guide groove (220 a) thereon, and a length direction of the first guide groove (220 a) is the same as a linear movement direction of the hanger (230);

the first linear track (221) is arranged at the bottom of the first guide groove (220 a), a guide protrusion is arranged at the top of the hanging seat (230), and the guide protrusion is limited in the first guide groove (220 a) in the up-down direction and can move along the length direction of the first guide groove (220 a).

5. The vehicle seat structure according to claim 1, characterized in that the top mount (210) is provided with a second linear rail (211);

the first linear rail (221) is engageable with the second linear rail (211) in response to rotation of the top rotating member (220) such that the hanger (230) moves from the first linear rail (221) to the second linear rail (211) and from the second linear rail (211) to the first linear rail (221).

6. The vehicle seat structure according to claim 1 or 2, characterized in that the bottom anchor module (300) includes: a mounting base (111) and a second driving element (310) arranged between the mounting base (111) and a bottom plate (110) of the seat (100);

the second driving member (310) is used for driving the seat (100) to rotate relative to the mounting seat (111).

7. The vehicle seat structure according to claim 6, characterized in that the second drive member (310) includes: the device comprises a mounting seat (111), a second motor (311) fixedly arranged on the mounting seat (111), a second worm (312) arranged on an output shaft of the second motor (311) and rotatably arranged on the mounting seat (111), a second worm wheel meshed with the second worm (312) and rotatably arranged on the mounting seat (111), a second gear (313) meshed with the second worm wheel and rotatably arranged on the mounting seat (111), and a third gear (314) meshed with the second gear (313) and fixedly arranged on the bottom plate (110).

8. The vehicle seat structure according to claim 1 or 2, characterized in that the seat (100) comprises: a floor (110), a seatback (120), and a seat cushion (130);

the vehicle seat structure further includes: a cushion adjustment module (500), the cushion adjustment module (500) comprising: the device comprises a third motor (510) arranged on the bottom plate (110), a fourth gear (520) arranged on an output shaft of the third motor (510), a fifth gear (530) meshed with the fourth gear (520), a screw (540) coaxially connected with the fifth gear (530) and a screw nut (550) arranged on the screw (540), wherein the screw nut (550) is connected with the seat cushion (130).

9. A vehicle, characterized in that it comprises a vehicle seat structure as claimed in any one of claims 1-8.