Anti-whiplash automobile headrest and automobile with same

Abstract

The anti-whiplash automobile headrest comprises a flexible structure, a driving mechanism and an energy absorption mechanism, the flexible structure is arranged on the side, close to the head of a passenger, of the automobile headrest, and the flexible structure has an initial position and a working position; the driving mechanism is connected with the flexible structure; the energy absorption mechanism is connected with the flexible structure; when a vehicle collides, the driving mechanism drives the flexible structure to move from the initial position to the working position, after the head of a passenger collides with the flexible structure, the flexible structure moves from the working position to the initial position under the driving of collision force, and the energy absorption mechanism absorbs energy of the collision force to reduce whiplash injuries of the passenger, so that the head and the neck of the passenger are protected; the distance between the flexible structure and the head is automatically adjusted, energy is absorbed through damping, whiplash injuries generated in backward collision are reduced, the passenger protection effect is improved, the passenger protection limitation of a common automobile seat headrest is solved, and injuries to passengers are further reduced.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle safety protection, in particular to an anti-whiplash automobile headrest and a vehicle having the same. Background Art

[0002] With the continuous advancement of automobile technology, people have higher and higher requirements for the passive safety of automobiles. Initially, cars were only required to ensure the safety of passengers' lives. Now, the requirements for reducing injuries from the entire car seat are getting higher and higher. Rear-end collision is a common traffic accident. When a car rear-ends, the torso of the passenger of the rear-end car will be pushed forward by the seat. The head will lag behind due to inertia. At this time, the neck will produce a whiplash action, which will cause damage to the neck. Although this injury is small each time, long-term damage will also cause greater damage to the neck. At present, ordinary headrests still have many shortcomings in alleviating whiplash injuries and cannot fully meet the needs of various rear-end collision conditions. The above problems need to be solved urgently. Summary of the invention

[0003] The object of the present invention is to provide an anti-whiplash automobile headrest and a vehicle having the same, so as to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: an anti-whiplash automobile headrest, comprising:

[0005] A flexible structure, wherein the flexible structure is arranged on a side of the automobile headrest close to the occupant's head, and the flexible structure has an initial position and a working position;

[0006] A driving mechanism connected to the flexible structure;

[0007] An energy absorbing mechanism, the energy absorbing mechanism is connected to the flexible structure;

[0008] When the vehicle collides, the driving mechanism drives the flexible structure to move from the initial position to the working position. After the occupant's head collides with the flexible structure, the flexible structure moves from the working position to the initial position driven by the collision force. The energy absorption mechanism absorbs the collision force to reduce whiplash injuries to the occupant, thereby protecting the occupant's head and neck.

[0009] Furthermore, the driving mechanism includes a magnetic module and a coil, the magnetic module is connected to the flexible structure, and the coil is connected to the car headrest. When the vehicle collides, the coil is energized and generates a magnetic field force. The magnetic field force drives the flexible structure to move from an initial position to a working position by driving the magnetic module.

[0010] Furthermore, the energy absorption mechanism includes a damping rod and a damping cylinder, the end of the damping rod away from the damping cylinder is connected to the flexible structure, the damping cylinder is connected to the car headrest, and the coil is connected to the car headrest through the damping cylinder; when the vehicle collides, the damping rod extends out with the flexible structure, and after the occupant's head collides with the flexible structure, the damping rod contracts and absorbs energy due to the conduction force generated by the collision.

[0011] Furthermore, the flexible structure includes a foam body and a base, the foam body and the base are connected, the magnetic module is connected to the base, and the base is provided with a spherical groove; a ball joint is provided at one end of the damping rod away from the damping cylinder body, and the ball joint is provided in the spherical groove, so that the flexible structure can rotate around the ball joint.

[0012] Furthermore, it includes a headrest controller, which is connected to the coil and controls the on and off of the coil. When the vehicle collides, the headrest controller controls the coil to be energized, and the coil generates a magnetic field force. The magnetic field force drives the magnetic module to move the flexible structure from the initial position to the working position.

[0013] Furthermore, a plurality of flexible structures are arranged on a side of the automobile headrest close to the occupant's head, and a plurality of driving mechanisms are arranged in one-to-one correspondence with the plurality of flexible structures.

[0014] Furthermore, it includes an occupant detection system, which is used to obtain the shape of the occupant's head and the relative position of the occupant's head and the car headrest in real time, set the initial position of each flexible structure according to the occupant's head shape, and set the working position of each flexible structure according to the relative position of the occupant's head and the car headrest.

[0015] Furthermore, it also includes a headrest height adjustment mechanism. The occupant detection system detects the head height of the occupant when sitting on the vehicle seat, and the headrest height adjustment mechanism adjusts the height of the vehicle headrest accordingly according to the head height.

[0016] Furthermore, it also includes an airbag controller. When the vehicle collides, the airbag controller receives a collision signal and sends the collision signal to the headrest controller.

[0017] On the other hand, a vehicle is provided, comprising an anti-whiplash vehicle headrest as described in any one of the above.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the magnetic suspension active safety adaptive follow-up headrest combined pad in the present invention can realize automatic adjustment of the pad angle and the distance from the head, and absorb energy through damping, cooperate with other components in the restraint system, reduce whiplash injuries caused by rear collisions, and improve occupant protection. It solves the occupant protection limitations of ordinary car seat headrests and further reduces injuries to occupants. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of an anti-whiplash automobile headrest in an embodiment of the present invention;

[0020] Figure 2 Schematic diagram of the connection structure of the anti-whiplash automobile headrest in an embodiment of the present invention;

[0021] Figure 3 It is a schematic diagram of the connection between the energy absorption mechanism and the coil structure in an embodiment of the present invention;

[0022] Figure 4 It is a connection block diagram of the anti-whiplash automobile headrest control system in an embodiment of the present invention;

[0023] In the figure: 10, flexible structure; 20, driving mechanism; 30, energy absorption mechanism; 40, automobile headrest; 50, headrest controller; 60, occupant detection system; 70, headrest height adjustment mechanism; 80, airbag controller; 90, headrest support rod; 11, foam body; 12, base; 21, magnetic module; 22, coil; 31, damping rod; 32, damping cylinder; 311, ball joint. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Please refer to the attached drawings of the specification, the present invention provides a technical solution: an anti-whiplash automobile headrest, comprising:

[0028] A flexible structure 10, the flexible structure 10 is arranged on a side of the automobile headrest 40 close to the occupant's head, and the flexible structure 10 has an initial position and a working position;

[0029] A driving mechanism 20, the driving mechanism 20 is connected to the flexible structure 10;

[0030] An energy absorbing mechanism 30, which is connected to the flexible structure 10;

[0031] When the vehicle collides, the driving mechanism 20 drives the flexible structure 10 to move from the initial position to the working position. After the occupant's head collides with the flexible structure 10, the flexible structure 10 moves from the working position to the initial position driven by the collision force, and the energy absorption mechanism 30 absorbs the collision force to reduce whiplash injuries of the occupant, thereby protecting the occupant's head and neck.

[0032] In the above embodiment, the foam body 11 in the flexible structure 10 of the anti-whiplash automobile headrest is preferably composed of foam, which plays a cushioning role when the occupant's head collides with the automobile headrest, thereby reducing the damage to the occupant's head and neck. When the vehicle is driving normally, the initial position of the flexible structure 10 is located near the surface of the automobile headrest 40 on one side close to the occupant's head. When the vehicle collides, the flexible structure 10 is actively moved from the initial position to the working position through the drive of the driving mechanism 20. The flexible structure 10 actively supports the occupant's head in the working position and retracts from the working position to the initial position when the occupant's head collides with the flexible structure 10. During the retraction process, the energy absorption mechanism 30 absorbs the collision force and releases the impact of the collision force on the occupant's head to reduce the occupant's whiplash injury, thereby protecting the occupant's head and neck.

[0033] Optionally, the driving mechanism 20 includes a magnetic module 21 and a coil 22. The magnetic module 21 is connected to the flexible structure 10, and the coil 22 is connected to the car headrest 40. When the vehicle collides, the coil 22 is energized and generates a magnetic field force. The magnetic field force drives the flexible structure 10 from an initial position to a working position by driving the magnetic module 21.

[0034] In the above embodiment, the magnetic module 21 can be a permanent magnet, an electromagnetic coil or an electromagnet. When the coil 22 is energized, the coil 22 generates a magnetic field force, which generates a repulsive force on the magnetic module 21. Since the magnetic module 21 is connected to the flexible structure 10, the magnetic module 21 is pushed by the repulsive force and moves with the flexible structure 10 from the initial position to the working position.

[0035] Optionally, the energy absorption mechanism 30 includes a damping rod 31 and a damping cylinder 32, the end of the damping rod 31 away from the damping cylinder 32 is connected to the flexible structure 10, the damping cylinder 32 is connected to the car headrest 40, and the coil 22 is connected to the car headrest 40 through the damping cylinder 32; when the vehicle collides, the damping rod 31 extends out with the flexible structure 10, and after the occupant's head collides with the flexible structure 10, the damping rod 31 contracts and absorbs energy due to the conduction force generated by the collision, and at the same time, the current of the coil 22 is controlled, and the repulsive force generated by the magnetic field is used to assist the damping cylinder 32 in providing a damping value for the damping rod 31, thereby realizing electronic control adjustment.

[0036] Optionally, the flexible structure 10 includes a foam body 11 and a base 12, wherein the foam body 11 and the base 12 are connected, the magnetic module 21 is connected to the base 12, and the base 12 is provided with a spherical groove; a ball joint 311 is provided at one end of the damping rod 31 away from the damping cylinder body 32, and the ball joint 311 is arranged in the spherical groove, so that the flexible structure 10 can rotate around the ball joint 311.

[0037] In the above embodiment, a plurality of magnetic modules 21 are evenly arranged on the base 12, and a plurality of coils 22 are arranged on the damping cylinder 32. The plurality of magnetic modules 21 are arranged in one-to-one correspondence with the plurality of coils 22. The current of the coil 22 is controlled to control the magnitude of the repulsive force on the corresponding magnetic module 21, so that the flexible structure 10 adjusts its posture around the ball joint 311 according to a preset angle. The preset angle can maximize the contact surface when the occupant collides with the flexible structure 10, thereby reducing the damage caused to the occupant by the collision.

[0038] Optionally, a headrest controller 50 is also included, which is connected to the coil 22 to control the on and off of the coil 22. When the vehicle collides, the headrest controller 50 controls the coil 22 to be energized, and the coil 22 generates a magnetic field force. The magnetic field force drives the magnetic module 21 to move the flexible structure 10 from the initial position to the working position.

[0039] Optionally, a plurality of flexible structures 10 are arranged on a side of the automobile headrest close to the occupant's head, and a plurality of driving mechanisms 20 are arranged in one-to-one correspondence with the plurality of flexible structures 10 .

[0040] Optionally, an occupant detection system 60 is included, which is used to obtain the shape of the occupant's head and the relative position of the occupant's head and the car headrest 40 in real time, set the initial position of each flexible structure 10 according to the shape of the occupant's head, and set the working position of each flexible structure 10 according to the relative position of the occupant's head and the car headrest 40.

[0041] In the above embodiment, the occupant detection system 60 collects the occupant's head shape information through the image acquisition module, or collects the occupant's identity information through the image acquisition module to retrieve the pre-stored occupant's head shape information, and sends the occupant's head shape information to the headrest controller 50. The headrest controller 50 generates an initial position control command according to the occupant's head shape information, and controls the initial position of each flexible structure 10 and the preset angle of each flexible structure 10 respectively, so that all the flexible structures 10 are combined into a contoured structure of the occupant's head shape. When a collision occurs, multiple flexible structures 10 are in contact with the occupant's head as much as possible. , preventing the flexible structure 10 from contacting the occupant's head at one point, thereby reducing the impact damage to the occupant when a collision occurs; the displacement between the initial position and the working position of each flexible structure 10 is set to be the same, so as to ensure that the flexible structure 10 maintains the shape of the occupant's head when in the working position. After the occupant's head touches the flexible structure 10 at the working position of each flexible structure 10, the flexible structure 10 absorbs the collision force through the energy absorption mechanism 30 during the movement from the working position to the initial position, and releases the impact of the collision force on the occupant's head, so as to reduce the occupant's whiplash injury, thereby protecting the occupant's head and neck.

[0042] Optionally, a headrest height adjustment mechanism 70 is further included. The occupant detection system 60 detects the head height of the occupant when sitting on the vehicle seat, and the headrest height adjustment mechanism 70 adjusts the height of the vehicle headrest accordingly according to the head height.

[0043] In the above embodiment, the headrest height adjustment mechanism 70 drives the height of the headrest support rod 90 to make the vehicle headrest 40 match the head height according to the head height of the occupant when sitting on the vehicle seat, thereby maximizing the number of contacts between the flexible structure 10 and the occupant's head, thereby allowing the flexible structure 10 to provide maximum protection for the occupant.

[0044] Optionally, an airbag controller 80 is further included. When a collision occurs in the vehicle, the airbag controller 80 receives a collision signal and sends the collision signal to the headrest controller 50 .

[0045] In the above embodiment, the collision signal is provided to the headrest controller 50 by the airbag controller 80 .

[0046] On the other hand, a vehicle is provided, comprising an anti-whiplash vehicle headrest as described in any one of the above items.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-whiplash automobile headrest, characterized in that: include: A flexible structure, wherein the flexible structure is arranged on a side of the automobile headrest close to the occupant's head, and the flexible structure has an initial position and a working position; A driving mechanism connected to the flexible structure; An energy absorbing mechanism connected to the flexible structure; When the vehicle collides, the driving mechanism drives the flexible structure to move from the initial position to the working position. After the occupant's head collides with the flexible structure, the flexible structure moves from the working position to the initial position driven by the collision force. The energy absorption mechanism absorbs the collision force to reduce whiplash injuries to the occupant, thereby protecting the occupant's head and neck.

2. The anti-whiplash automobile headrest according to claim 1, characterized in that: include: The driving mechanism includes a magnetic module and a coil. The magnetic module is connected to the flexible structure, and the coil is connected to the car headrest. When the vehicle collides, the coil is energized and generates a magnetic field force. The magnetic field force drives the flexible structure from the initial position to the working position by driving the magnetic module.

3. The anti-whiplash automobile headrest according to claim 2, characterized in that: The energy absorption mechanism includes a damping rod and a damping cylinder. The end of the damping rod away from the damping cylinder is connected to the flexible structure, the damping cylinder is connected to the car headrest, and the coil is connected to the car headrest through the damping cylinder. When the vehicle collides, the damping rod extends out with the flexible structure. After the occupant's head collides with the flexible structure, the damping rod contracts and absorbs energy due to the conducted force generated by the collision.

4. The anti-whiplash automobile headrest according to claim 3, characterized in that: The flexible structure includes a foam body and a base, wherein the foam body and the base are connected, the magnetic module is connected to the base, and the base is provided with a spherical groove; a ball joint is provided at one end of the damping rod away from the damping cylinder body, and the ball joint is provided in the spherical groove so that the flexible structure can rotate around the ball joint.

5. The anti-whiplash automobile headrest according to claim 1, characterized in that: include: The headrest controller is connected to the coil and controls the on and off of the coil. When the vehicle collides, the headrest controller controls the coil to be energized, and the coil generates a magnetic field force. The magnetic field force drives the magnetic module to move the flexible structure from the initial position to the working position.

6. The anti-whiplash automobile headrest according to claim 5, characterized in that: include: A plurality of flexible structures are arranged on one side of the automobile headrest close to the occupant's head, and a plurality of driving mechanisms are arranged in one-to-one correspondence with the plurality of flexible structures.

7. The anti-whiplash automobile headrest according to claim 6, characterized in that: It includes an occupant detection system, which is used to obtain the shape of the occupant's head and the relative position of the occupant's head and the car headrest in real time, set the initial position of each flexible structure according to the shape of the occupant's head, and set the working position of each flexible structure according to the relative position of the occupant's head and the car headrest.

8. The anti-whiplash automobile headrest according to claim 7, characterized in that: It also includes a headrest height adjustment mechanism. The occupant detection system detects the head height of the occupant when sitting on the vehicle seat, and the headrest height adjustment mechanism adjusts the height of the vehicle headrest accordingly according to the head height.

9. The anti-whiplash automobile headrest according to claim 8, characterized in that: It also includes an airbag controller. When the vehicle collides, the airbag controller receives a collision signal and sends the collision signal to the headrest controller.

10. A vehicle comprising the anti-whiplash vehicle headrest according to any one of claims 1 to 9.

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