CN114954167A

CN114954167A - Vehicle seat structure and vehicle

Info

Publication number: CN114954167A
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: 2022-08-30
Anticipated expiration: 2041-02-26
Also published as: CN114954167B

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 restraint 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 a vertical shaft with the bottom anchoring module on the premise of adjusting the inclination angle of the seat back of the seat, so that a force increasing transmission path in the collision process can be realized, namely, the path of transmitting the 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 seat arrangements for motor vehicles, the seat is arranged in the direction of travel of the vehicle and is equipped with a passenger restraint device in the form of a seat belt and an airbag. In the case of a frontal collision process, the occupant will experience a forward movement of the torso relative to the vehicle due to inertia during the initial stages of the collision, but will experience a rearward force on the upper torso due to the shoulder and chest restraint of the seat belt. After the airbag is unfolded, the chest and the head of the passenger can be subjected to another decelerating acting force due to the deformation of the airbag, so that the upper trunk of the passenger is controlled, and the passenger is prevented from being damaged due to collision (secondary collision) with the hard part of the interior trim.

At present, the upper anchor points of safety belts of most passenger cars are fixed on a B column of the car, and most of airbags are positioned in a mechanism at the front of a passenger. The shoulder belt portion of the seat belt should normally contact a portion of the occupant where the shoulder is stronger, but during adjustment of the seat by an occupant of a different body type, the relative position of the upper anchor point of the seat belt and the seat changes, and the shoulder belt tends to be in contact with the occupant in a non-standard state. In a high-automatic driving automobile, the position and the orientation of a passenger can be freely adjusted, the upper anchor point of the safety belt is fixed on the position of the shoulder of the seat under the condition that the ideal restraint can not be obtained under the condition of any position and orientation obviously, one solution is that the upper anchor point of the safety belt is fixed on the position of the shoulder of the seat, the relative position change of the upper anchor point of the safety belt and the seat is small in the process of adjusting the seat by the passenger, and the safety belt can restrain the movement of the upper trunk of the passenger more ideally. Meanwhile, the safety belt integrated on the seat can well reduce impact damage caused by the loosened safety belt and rebounded passengers in rear collision.

If the upper anchor point is arranged on the safety belt at the upper part of the seat back, the reaction force for restraining the movement of a passenger can not be transmitted to the B column with higher rigidity any more but is applied to the seat back and the angle adjuster connected with the bottom of the seat back, so that the stress structure of the cantilever beam type ensures that the moment which needs to be borne by the seat back and the angle adjuster is larger, the requirement on the rigidity is higher, and further the cost and the weight of the seat are increased, therefore, the stress structure is common in luxury vehicle types and is not easy to use in small or low-cost vehicle types.

Disclosure of Invention

In view of the above, it is desirable to provide a vehicle seat structure and a vehicle, which solve the problem that a seat belt having an upper anchor point provided at an upper portion of a seat back increases the cost and weight of the seat.

A 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 both 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 oppositely;

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 further used for synchronously driving the chair to rotate around the vertical direction.

In one embodiment thereof, the vehicle seat structure further includes: the system comprises an environment perception and risk pre-judging module, a collision risk pre-judging module and a collision risk pre-judging module, wherein the environment perception and risk pre-judging module is used for acquiring road environment information of vehicle running and judging whether the vehicle has a collision risk or not based on the road environment information;

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 vehicle has collision risk.

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

the top rotating part is rotatably arranged on the top fixing part and is provided with a first linear track;

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

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

the first driver includes: the linear track type motor comprises a first motor, a first bevel gear arranged on an output shaft of the first motor, a second bevel gear meshed with the first bevel gear, a first worm coaxially connected with the second bevel gear, a first worm gear meshed with the first worm, and a first gear coaxially connected with the first worm gear and meshed with the first linear track, wherein the axis of the first bevel gear is perpendicular to the axis of the second bevel gear.

In one embodiment, the top rotating piece 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 rail 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 vertical direction and can move along the length direction of the first guide groove.

In one embodiment, a second linear track is arranged on the top fixing piece;

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

In one embodiment thereof, the bottom anchor module comprises: the mounting seat and a second driving piece are arranged between the mounting seat and a 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 drive member comprises: the worm gear mechanism comprises a second motor fixedly arranged on the mounting seat, a second worm arranged on an output shaft of the second motor and rotatably arranged on the mounting seat, a second worm wheel meshed with the second worm and rotatably arranged on the mounting seat, a second gear meshed with the second worm wheel and rotatably arranged on the mounting seat, and a third gear 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 adjusting module, cushion adjusting module includes: the cushion comprises a third motor, a fourth gear, a fifth gear, a lead screw and a lead screw nut, wherein the third motor is arranged on the bottom plate, the fourth gear is arranged on an output shaft of the third motor, the fifth gear is meshed with the fourth gear, the lead screw is coaxially connected with the fifth gear, and the lead screw nut is arranged on the lead screw and is connected with the cushion.

A vehicle comprising the vehicle seat structure of any one of the above.

According to the vehicle seat structure and the vehicle, the top anchoring module and the bottom 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 increasing transmission path in the collision process can be realized, namely, an inertia force transmission path to the roof is increased, the requirements on the angle adjuster of the seat and the rigidity of the seat back 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 structural view of a vehicle seat structure provided in an embodiment of the invention;

FIG. 2 is a schematic view of a seat and top anchor module of one embodiment of the present invention in a first orientation;

FIG. 3 is a schematic view of a seat and top anchor module of one embodiment of the present invention in a second orientation;

FIG. 4 is a schematic view 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 top 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 an internal view of a mounting base according to an embodiment of the present invention;

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

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

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

Wherein reference numerals in the drawings are illustrated as follows:

100. a seat; 110. a base plate; 111. a mounting seat; (ii) a 120. A chair back; 130. a cushion; 200. a top anchoring module; 210. a top mount; 211. a second linear track; 220. a top rotating member; 220a, a first guide groove; 221. a first linear track; 230. a suspension 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 gear; 246. a first gear; 300. a bottom anchoring 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 lead screw; 550. a lead screw nut; 560. a support rod.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

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

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" 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 as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, an embodiment of the present invention provides a vehicle seat structure including: a seat 100, a restraint module (not shown in the drawings), 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 to the seat 100; the first end of the connection module 400 is hinged to the seat back 120 of the seat 100, the second end is hinged to 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 tilt angle of the chair back 120, and the top anchoring module 200 and the bottom anchoring module 300 are further 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 point of the restraint module may be fixed to a headrest (see fig. 2 and 3) of a seat back 120 of the seat 100, and the lower anchor point of the restraint module may be fixed to a floor 110 of the seat 100.

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

In the vehicle seat structure, the top anchor module 200 and the bottom anchor module 300 can synchronously drive the seat 100 to rotate around the vertical direction 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, namely, an inertia force transmission path to the roof is increased, the requirements on the angle adjuster of the seat 100 and the rigidity of the seat back 120 are reduced, and the cost and the mass of the seat 100 are reduced. 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 environment perception and risk prejudgment module and a control module (not shown in the drawing); the environment perception and risk pre-judging module is used for acquiring road environment information of 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 the vehicle is at risk of collision. 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 at different crash orientations such that the seat belt can effectively act 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, the road environment sensing unit may be formed by components such as a camera, a distance sensor, and a radar, and may acquire parameters such as a distance between the vehicle and surrounding obstacles, a speed and a running direction of the obstacles, and the like. 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 comfort level of the passenger is adjusted first, and this stage may be controlled by the passenger independently or by the control module, and the passenger can continue to adjust the comfort level during driving. After the vehicle is started, the vehicle can estimate the driving risk in real time after sensing the driving environment of the vehicle through the environment sensing and risk pre-judging module. When the risk reaches a certain threshold (the threshold can be parameters such as vehicle speed and distance from an obstacle), an early warning signal is sent out. At this time, the control module already obtains the position information of the free seat 100, and can judge whether adjustment is needed according to the risk level, if the adjustment is needed, the position of the seat 100 is adjusted to enter or approach the safe range before collision, and the seat is locked after the adjustment is completed. If the vehicle stops after the risk is avoided through deceleration or turning, the passenger can leave the seat, otherwise, the driving risk judgment is continued.

In some embodiments of the present invention, as shown in fig. 2-4, the top anchor module 200 comprises: the top fixed part 210, the top rotating part 220, the suspension base 230 and the first driving part 240; the top rotating member 220 is rotatably disposed on the top fixed member 210, and the top rotating member 220 is disposed with a first linear track 221 (see fig. 4 and 5); the hanging seat 230 is hinged to the second end of the connection module 400, and the first driving member 240 is disposed on the hanging seat 230 and is used for driving the hanging seat 230 to move linearly along the first linear track 221. The first driving member 240 is used for providing a driving force capable of moving linearly to the top anchor module 200, and the top anchor module 200 can drive the bottom anchor module 300 to move linearly in the process of moving linearly, that is, the top anchor module 200 and the bottom anchor module 300 share one driving force capable of moving linearly.

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

In particular to some embodiments of the present invention, as shown in fig. 5, the first linear track 221 is a rack; the first driver 240 includes: the first motor 241, a first bevel gear 242 disposed 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 track 221, wherein the first bevel gear 242 is perpendicular to the 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 rotates to drive the first worm wheel 245 to rotate, and the first gear 246 moves linearly along the first linear track 221 under the rotation of the first worm wheel 245. The first driving member 240 with such a 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 locking at any position can be realized, and the suspension seat 230 can be stably stopped at any position on the first linear rail 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 via a rotating shaft, and the first worm wheel 245 and the first gear 246 share a rotating shaft and are rotatably disposed in the suspension holder 230. Wherein, the hanging seat 230 may be a shell-shaped structure.

Optionally, the first motor 241 is electrically connected to a control module, and the control module is configured to control the turning direction, 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 guide groove 220a thereon, and the length direction of the first guide groove 220a is the same as the linear movement direction of the suspension base 230; the first linear rail 221 is disposed at the bottom of the first guide groove 220a, and a guide protrusion (not shown in the drawings) is disposed at the top of the suspension base 230, and is vertically retained in the first guide groove 220a and is movable along the length of the first guide groove 220 a. Thus, the hanging seat 230 and the first driving member 240 can be prevented from falling off the first linear rail 221 by their own weight, and the top anchoring module 200 can be ensured to work normally.

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 has the same shape as the cross-section of the first guide groove 220 a. Alternatively, both ends of the first guide groove 220a may be respectively penetrated with the outside, so that the guide protrusion is conveniently installed into the first guide groove 220 a.

On the premise that the top anchoring module 200 includes a top fixed member 210, a top rotating member 220, a suspension base 230 and a first driving member 240, as shown in fig. 4, in some embodiments of the present invention, a second linear track 211 is disposed on the top fixed member 210; the first linear track 221 can engage with the second linear track 211 along with the rotation of the top rotating member 220, so that the suspension base 230 moves from the first linear track 221 to the second linear track 211 or from the second linear track 211 to the first linear track 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 with 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. Wherein, the top fixing member 210 has a second guiding groove, and the length direction of the second guiding groove is the same as the moving 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 suspension base 230 is vertically limited in the second guide groove and can move 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 anchoring module 300 includes: a mounting seat 111 and a second driving member 310 disposed between the mounting seat 111 and the bottom plate 110 of the seat 100; the second driver 310 is used to drive the seat 100 to rotate relative to the mounting seat 111. The bottom-anchoring module 300 and the top-anchoring module 200 may share a rotational driving force, which may drive the bottom-anchoring module 300 to rotate, and the bottom-anchoring module 300 may drive the top-anchoring module 200 to rotate during the rotation process.

In particular to some embodiments of the present invention, as shown in fig. 7, the second driver 310 includes: a second motor 311 fixedly disposed on the mounting seat 111, a second worm 312 disposed on an output shaft of the second motor 311 and rotatably disposed on the mounting seat 111, a second worm wheel meshed with the second worm 312 and rotatably disposed on the mounting seat 111, a second gear 313 meshed with the second worm wheel and rotatably disposed on the mounting seat 111, and a third gear 314 meshed with the second gear 313 and fixedly disposed 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, the second gear 313 also rotates, and since 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. Since the third gear 314 is fixedly disposed on the bottom plate 110, the seat 100 rotates relative to the mounting seat 111. Of course, the mounting seat 111 may be mounted on other position adjustment mechanisms of the seat 100 (e.g., a front-rear position adjustment mechanism of the seat 100 as a whole). The second driving member 310 with such a 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 locking at any position can be realized, and the bottom rotating member 330 can rotate to any position and stop.

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

In some embodiments of the present invention, as shown in fig. 3, the seat 100 comprises: a base plate 110, a seat back 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 disposed on the base plate 110, a fourth gear 520 disposed on an output shaft of the third motor 510, a fifth gear 530 engaged with the fourth gear 520, a lead screw 540 coaxially connected with the fifth gear 530, and a lead screw nut 550 disposed on the lead screw 540, wherein the lead screw nut 550 is connected with the seat cushion 130. When the third motor 510 operates, the fourth gear 520 rotates to drive the fifth gear 530 to rotate, the lead screw 540 rotates accordingly, and the lead screw nut 550 drives the seat cushion 130 to move linearly. The position of the seat cushion 130 can be adjusted under different collision conditions to achieve the purposes of adjusting the posture of the passenger and reducing the damage of the passenger.

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. An included angle between the supporting rod 560 and the seat cushion 130 is greater than 0 °, so that the screw nut 550 is prevented from being self-locked, and the screw nut 550 is ensured to be capable of effectively adjusting the position of the seat 100 when the third motor 510 runs.

Optionally, the third motor 510 is electrically connected to a control module, and the control module is configured to control the on and 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 backrest 120 and the base plate 110 is adjustable. Therefore, 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 passenger and reducing the damage of the passenger. The included angle between the backrest 120 and the base plate 110 can be adjusted by a mechanism such as a motor. The motor and the like can be electrically connected to a control module, which is used to control the opening and closing of the motor and the like, so as to control the included angle between the chair back 120 and the bottom plate 110.

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

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

As described above, in the vehicle, the top anchor module 200 of the vehicle seat structure and the bottom anchor module 300 can synchronously drive the seat 100 to make a linear motion or rotate around the vertical direction on the premise of adjusting the tilt 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 an inertia force to the roof is increased, requirements on the angle adjuster of the seat 100 and the rigidity of the seat back 120 are reduced, and thus the cost and the mass of the seat 100 are reduced. In addition, the vehicle seat structure also has the characteristics of simple structure and low preparation cost.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A vehicle seat structure, characterized by comprising: 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 restraint module are both 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 is hinged with the top anchoring module (200), and the first end and the second end of the connecting 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.

2. The vehicle seat structure according to claim 1, characterized by further comprising: the system comprises an environment perception and risk pre-judging module, a collision risk pre-judging module and a collision risk pre-judging module, wherein the environment perception and risk pre-judging module is used for acquiring road environment information of vehicle running and judging whether the vehicle has a collision risk or not based on the road environment information;

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

3. The vehicle seat structure according to claim 1 or 2, characterized in that the top anchor module (200) comprises: the top fixed piece (210), the top rotating piece (220), the suspension seat (230) and the first driving piece (240);

the top rotating piece (220) is rotatably arranged on the top fixed piece (210), and a first linear track (221) is arranged on the top rotating piece (220);

the suspension seat (230) is hinged with the second end of the connecting module (400), and the first driving piece (240) is arranged on the suspension seat (230) and used for driving the suspension seat (230) to do linear motion along the first linear track (221).

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

the first driver (240) comprises: the linear guide rail driving device comprises a first motor (241), a first bevel gear (242) arranged on an output shaft of the first motor (241), a second bevel gear (243) meshed with the first bevel gear (242), a first worm (244) coaxially connected with the second bevel 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 rail (221), wherein the first bevel gear (242) is perpendicular to the axis of the second bevel gear (243).

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

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

6. The vehicle seat structure according to claim 3, wherein a second linear rail (211) is provided on the top mount (210);

the first linear track (221) can be engaged with the second linear track (211) along with the rotation of the top rotating piece (220), so that the suspension seat (230) moves from the first linear track (221) to the second linear track (211) and from the second linear track (211) to the first linear track (221).

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

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

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

9. The vehicle seat structure according to claim 1 or 2, characterized in that the seat (100) includes: a base plate (110), a seat back (120), and a seat cushion (130);

the vehicle seat structure further includes: a cushion adjustment module (500), the cushion adjustment module (500) comprising: the seat cushion 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 lead screw (540) coaxially connected with the fifth gear (530), and a lead screw nut (550) arranged on the lead screw (540), wherein the lead screw nut (550) is connected with the seat cushion (130).

10. A vehicle characterized in that the vehicle includes the vehicle seat structure according to any one of claims 1 to 9.