A car seat that can prevent motion sickness

Abstract

The present application relates to the technical field of automobile seats, and discloses an automobile seat capable of preventing car sickness, which comprises a first sliding rail, a chassis and a mounting bracket, the chassis is arranged on the first sliding rail in a front-rear sliding manner, the mounting bracket is arranged on the chassis in a front-rear sliding manner, a damping system is arranged between the chassis and the mounting bracket, and the damping system comprises a forward compression spring, a backward compression spring and a magnetorheological damper; when the automobile seat is in an initial design position, the mounting bracket slides forward relative to the chassis, the forward compression spring is compressed, and the damping of the magnetorheological damper changes; when the mounting bracket slides backward relative to the chassis, the backward compression spring is compressed, and the damping of the magnetorheological damper changes; a seat pan, a left lifting mechanism and a right lifting mechanism, the left lifting mechanism can drive the left side of the seat pan to perform lifting movement, and the right lifting mechanism can drive the right side of the seat pan to perform lifting movement. The automobile seat has the advantage that the effect of preventing car sickness is good.

Description

Technical Field

[0001] This invention relates to the field of automotive seat technology, and more particularly to an automotive seat that can prevent motion sickness. Background Technology

[0002] Motion sickness is a common phenomenon, with studies showing that up to 46% of people experience it. In dynamic environments, passengers need to constantly adjust their posture to maintain balance and a stable sense of direction. Everyone has a limit to their tolerance for this continuous adjustment intensity and duration; this limit is called the motion sickness threshold. If the stimulus exceeds this limit, motion sickness symptoms will occur. Currently, the main way to relieve motion sickness is by taking motion sickness medication.

[0003] Various car manufacturers have adopted different methods to alleviate motion sickness in passengers. For example, some have developed anti-motion sickness glasses that incorporate blue liquid within a lensless frame. This liquid flows with head movement, using gravity to recreate balance. Others have developed VR glasses that transmit vehicle movement data, allowing passengers to access driving information as if they were the driver. Still others use inflatable seatbacks and side bolsters to maintain passenger stability. However, these methods have not been entirely effective in alleviating motion sickness. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide a car seat with good anti-motion sickness effect.

[0005] The technical solution adopted by this invention to solve its technical problem is to propose a car seat that can prevent motion sickness, comprising:

[0006] First slide rail;

[0007] The base frame and the mounting bracket are provided. The base frame is slidably mounted on the first slide rail and is provided with a first drive mechanism for driving it to slide back and forth. The mounting bracket is slidably mounted on the base frame.

[0008] A damping system, disposed between the base frame and the mounting bracket, includes a forward compression spring, a rearward compression spring, and a magnetorheological damper. When the car seat is in its initial design position: when the mounting bracket slides forward relative to the base frame, the forward compression spring is compressed, and the damping of the magnetorheological damper changes; when the mounting bracket slides backward relative to the base frame, the rearward compression spring is compressed, and the damping of the magnetorheological damper changes.

[0009] The device includes a basin, a left lifting mechanism, and a right lifting mechanism. The left and right lifting mechanisms are both mounted on the mounting bracket. The basin is mounted on the left and right lifting mechanisms. The left lifting mechanism can drive the left side of the basin to move up and down, and the right lifting mechanism can drive the right side of the basin to move up and down.

[0010] Furthermore, the mounting bracket is provided with a first bracket, the base frame is provided with a second bracket, the magnetorheological damper is mounted on the first bracket, and the two ends of the magnetorheological damper abut against the first bracket and the second bracket respectively.

[0011] Furthermore, the forces exerted by the forward compression spring and the magnetorheological damper on the mounting bracket can cause the mounting bracket to slide forward and then return to its original position; the forces exerted by the backward compression spring and the magnetorheological damper can cause the mounting bracket to slide backward and then return to its original position.

[0012] Furthermore, the base frame is provided with a front limit and a rear limit respectively, the front end of the forward compression spring abuts against the front limit, and the rear end of the rear compression spring abuts against the rear limit;

[0013] The mounting bracket is provided with a stop block, which moves against the rear end of the forward compression spring and the front end of the rear compression spring respectively. When the mounting bracket slides back and forth relative to the base frame, the stop block compresses the forward compression spring or the rear compression spring.

[0014] Furthermore, the base frame has a second slide rail, and the mounting bracket is slidably mounted on the second slide rail;

[0015] The front limit and the rear limit are respectively set at the front and rear ends of the second slide rail. A connecting shaft is provided between the front limit and the rear limit. A guide rod is provided on the connecting shaft. The forward compression spring and the rear compression spring are both sleeved on the guide rod. The stop block is sleeved on the guide rod and can slide back and forth along the guide rod.

[0016] Furthermore, the mounting bracket has a bottom cover, which covers the second slide rail and slides in cooperation with the second slide rail;

[0017] The bottom cover and the second slide rail together form a mounting cavity, and the forward compression spring, the rearward compression spring and the stop block are all located in the mounting cavity.

[0018] Furthermore, both the left lifting mechanism and the right lifting mechanism include a first lifting link, a second lifting link, and a driving component;

[0019] The first lifting link is hinged to the middle of the second lifting link, one end of the first lifting link is rotatably connected to the basin, and the other end of the first lifting link is slidably mounted on the mounting bracket.

[0020] One end of the second lifting link is rotatably connected to the mounting bracket, and the other end of the second lifting link is slidably mounted on the basin;

[0021] The driving component is mounted on the mounting bracket and can drive one end of the first lifting link near the mounting bracket to slide on the mounting bracket, thereby driving the seat to move up and down through the first lifting link and the second lifting link.

[0022] Furthermore, the mounting bracket is provided with a first sliding groove, the seat basin is provided with a second sliding groove, the end of the first lifting link near the mounting bracket is slidably disposed in the first sliding groove, and the end of the second lifting link near the seat basin is slidably disposed in the second sliding groove;

[0023] The drive unit is configured as a lead screw motor.

[0024] Furthermore, the mounting bracket is provided with a locking mechanism, which includes a locking tongue, a cable, and an unlocking component;

[0025] The base frame is provided with a locking groove. When the locking tongue is locked into the locking groove, it can restrict the mounting bracket from sliding back and forth relative to the base frame. The unlocking member is connected to the locking tongue through the pull cable, and the unlocking member can pull the locking tongue through the pull cable to disengage the locking tongue from the locking groove.

[0026] Furthermore, the first drive mechanism is configured as an electric slide rail, which can drive the base frame to slide back and forth along the first slide rail;

[0027] The car seat is equipped with an acceleration sensor, which can acquire the vehicle's acceleration in real time.

[0028] Compared with the prior art, the present invention has at least the following beneficial effects:

[0029] In this invention, when the vehicle's X-axis (i.e., longitudinal) acceleration exceeds the motion sickness threshold, the seat can move back and forth. A forward or backward compression spring, in conjunction with a magnetorheological damper, absorbs the kinetic energy. Simultaneously, a first drive mechanism (i.e., an electric slide rail) moves the base in the same direction, thereby reducing the acceleration felt by the passenger and preventing motion sickness. When the vehicle's Y-axis (i.e., longitudinal) acceleration exceeds the motion sickness threshold, a left or right lifting mechanism can lift the left or right side of the seat, tilting the passenger and reducing the acceleration experienced, thus preventing motion sickness. In short, this car seat effectively prevents motion sickness.

[0030] In this invention, because the magnetorheological fluid of the magnetorheological damper can rapidly change its physical properties under the action of a magnetic field, transforming from a liquid-like state to a state with high viscosity or a fixed state, the forward or backward compression spring, in conjunction with the magnetorheological damper, can quickly absorb the energy of forward and backward motion. Moreover, after the acceleration decreases, the forward or backward compression spring, in conjunction with the magnetorheological damper, can restore the car seat to its initial design position, resulting in a rapid response.

[0031] In this invention, the left lifting mechanism and the right lifting mechanism include a first lifting rod, a second lifting rod, and a driving member. The first lifting rod and the second lifting rod form a scissor leg structure. The driving member drives the first lifting rod and transmits the second lifting rod to make the seat lift and lower. The structure is simple, and the left lifting mechanism and the right lifting mechanism can operate independently or in conjunction.

[0032] In this invention, a locking mechanism is provided on the mounting bracket. When the locking tongue is locked into the locking groove on the base frame, the mounting bracket can be restricted from sliding back and forth relative to the base frame, which is equivalent to turning off the anti-motion sickness function. At this time, it is in the state of a normal car seat. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the car seat that can prevent motion sickness according to the present invention;

[0034] Figure 2 for Figure 1 Remove the structural diagram behind the backrest;

[0035] Figure 3 Assembly drawing for the sitz bath, left and right lifting mechanism, and mounting bracket;

[0036] Figure 4 for Figure 3 Side view;

[0037] Figure 5 Exploded view of the sitz bath, left and right lifting mechanism, and mounting bracket;

[0038] Figure 6Assembly drawing of the first slide rail, base frame, mounting bracket, first drive mechanism, damping system and locking mechanism;

[0039] Figure 7 This is a partial structural diagram of the base frame, mounting bracket, locking mechanism, and damping system.

[0040] Figure 8 for Figure 6 Exploded view after removing the first drive mechanism and the first slide rail.

[0041] In the picture:

[0042] 1. First slide rail;

[0043] 2. Base frame; 20. Second bracket; 21. Front limit switch; 22. Rear limit switch; 23. Second slide rail; 24. Connecting shaft; 25. Guide rod; 26. Locking groove; 230. Mounting cavity;

[0044] 3. Mounting bracket; 30. First bracket; 31. Stop block; 32. Bottom cover; 33. First slide groove; 34. Locking tongue; 35. Cable; 36. Unlocking component;

[0045] 4. First drive mechanism;

[0046] 5. Damping system; 51. Forward compression spring; 52. Reverse compression spring; 53. Magnetorheological damper;

[0047] 6. Sink; 60. Second chute;

[0048] 7. Left lifting mechanism; 780. Drive component; 781. First lifting rod; 782. Second lifting rod;

[0049] 8. Right lifting mechanism;

[0050] 9. Backrest. Detailed Implementation

[0051] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0052] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0053] Furthermore, in this invention, descriptions involving terms such as "first," "second," and "a" are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0056] like Figures 1-2 as well as Figure 8 As shown, a car seat that can prevent motion sickness mainly includes: a first slide rail 1, a base frame 2, a mounting bracket 3, a first drive mechanism 4, a damping system 5, a seat basin 6, a left lifting mechanism 7, a right lifting mechanism 8, and a backrest 9, the backrest 9 being rotatably mounted on the seat basin 6.

[0057] The car seat is supported on two parallel first slide rails 1 and can move back and forth along them. Specifically, a first drive mechanism 4 is provided on the base frame 2. The first drive mechanism 4 drives the base frame 2 to slide back and forth along the two first slide rails 1, thereby realizing the overall back and forth sliding of the car seat. In this embodiment, the first drive mechanism 4 is configured as an electric slide rail, that is, the overall back and forth sliding of the car seat is realized through the electric slide rail. The electric slide rail is powered by a motor and has a conventional structure, which will not be described in detail here.

[0058] The base frame 2 and the mounting bracket 3 are slidably mounted on the first slide rail 1. The inner side of the base frame 2 is lower than the outer side, forming a high-low rail structure. The mounting bracket 3 is slidably mounted on the base frame 2.

[0059] like Figures 6-8As shown, the damping system 5, located between the base frame 2 and the mounting bracket 3, includes a forward compression spring 51, a rearward compression spring 52, and a magnetorheological damper 53. Each of the left and right sides of the car seat has a forward compression spring 51, and each of the left and right sides has a rearward compression spring 52. In actual use, when the car seat is in its initial design position: the mounting bracket 3 slides forward relative to the base frame 2, the forward compression spring 51 is compressed, and the damping of the magnetorheological damper 53 changes. When the mounting bracket 3 slides backward relative to the base frame 2, the rearward compression spring 52 is compressed, and the damping of the magnetorheological damper 53 changes. It should be explained that the magnetorheological damper 53, also known as an MR damper, is a device that utilizes the properties of magnetorheological fluid to achieve vibration reduction and control. Magnetorheological fluid is a smart material that can rapidly change its physical properties under the influence of a magnetic field, transforming from a liquid-like state to a state with high viscosity or solid-like behavior. When the vehicle's forward or backward acceleration reaches a threshold, the forward compression spring 51, in conjunction with the magnetorheological damper 53, or the backward compression spring 52, in conjunction with the magnetorheological damper 53, absorbs the kinetic energy. Simultaneously, the electric slide rail moves the car seat in the same direction, thereby reducing the acceleration experienced by the passenger and preventing motion sickness. When the car seat is in its initial design position, the damping of the magnetorheological damper 53 is at its maximum.

[0060] Specifically, a first bracket 30 is provided on the mounting bracket 3, and a second bracket 20 is provided on the base frame 2. A magnetorheological damper 53 is mounted on the first bracket 30, with both ends of the damper abutting against the first bracket 30 and the second bracket 20 respectively. That is, one end of the damper abuts against the first bracket 30, and the other end abuts against the second bracket 20. When the mounting bracket 3 slides back and forth relative to the base frame 2, the damper 53 generates damping. The damping effect of the damper 53 can be achieved by controlling the generation and disappearance of the magnetic field. During use, the force exerted on the mounting bracket 3 by the forward compression spring 51 and the damper 53 causes the mounting bracket 3 to slide forward and then return to its original position. The force exerted by the backward compression spring 52 and the damper 53 causes the mounting bracket 3 to slide backward and then return to its original position.

[0061] Furthermore, a front limit 21 and a rear limit 22 are respectively provided on the base frame 2. The front end of the forward compression spring 51 abuts against the front limit 21, and the rear end of the rear compression spring 52 abuts against the rear limit 22. The front limit 21 restricts the front end of the forward compression spring 51, and the rear limit 22 restricts the rear end of the rear compression spring 52. A stop block 31 is provided on the mounting bracket 3. The stop block 31 moves against the rear end of the forward compression spring 51 and the front end of the rear compression spring 52, respectively. When the mounting bracket 3 slides back and forth relative to the base frame 2, the stop block 31 compresses the forward compression spring 51 or the rear compression spring 52. Furthermore, the front limit 21 and the rear limit 22 are respectively located at the front and rear ends of the second slide rail 23. A connecting shaft 24 is provided between the front limit 21 and the rear limit 22, and a guide rod 25 is provided on the connecting shaft 24. The forward compression spring 51 and the rear compression spring 52 are both sleeved on the guide rod 25. The stop block 31 is sleeved on the guide rod 25 and can slide back and forth along the guide rod 25. The guide rod 25 restricts the forward compression spring 51 and the rear compression spring 52, ensuring that the forward compression spring 51 and the rear compression spring 52 will not detach from the guide rod 25 when compressed. The stop block 31 is sleeved on the guide rod 25 and can slide along the guide rod 25, ensuring that the movement of the stop block 31 is reliable and will not detach from the guide rod 25.

[0062] The base frame 2 has a second slide rail 23, and the mounting bracket 3 is slidably mounted on the second slide rail 23. The bottom of the mounting bracket 3 has a bottom cover 32, which covers the second slide rail 23 and slides in conjunction with it. The bottom cover 32 and the second slide rail 23 together form a mounting cavity 230, in which the forward compression spring 51, the rearward compression spring 52, and the stop block 31 are all located. This ensures that the movement of the forward compression spring 51, the rearward compression spring 52, and the stop block 31 is not disturbed by external factors. Furthermore, an acceleration sensor (not shown in the figure) is installed on the car seat, and the acceleration sensor can acquire the vehicle's acceleration in real time. Specifically, acceleration sensors can be installed separately to detect the vehicle's forward and backward acceleration (i.e., X-axis acceleration) and longitudinal acceleration (i.e., Y-axis acceleration) in real time.

[0063] In actual use, when the vehicle's X-axis (i.e., forward and backward) acceleration exceeds the motion sickness threshold, the seat 6 can move back and forth (the seat 6 moves back and forth along with the mounting bracket 3). The forward compression spring 51 or the backward compression spring 52, in conjunction with the magnetorheological damper 53, absorbs the kinetic energy. Simultaneously, the first drive mechanism 4 (i.e., the electric slide rail) moves the base in the same direction, thereby reducing the acceleration felt by the passenger and preventing motion sickness. Specifically, because the magnetorheological fluid in the magnetorheological damper 53 can rapidly change its physical properties under the influence of a magnetic field, transforming from a liquid-like state to one with high viscosity or a fixed state, the forward compression spring 51 or the backward compression spring 52, in conjunction with the magnetorheological damper 53, can quickly absorb the forward and backward kinetic energy. Furthermore, after the acceleration decreases, the forward compression spring 51 or the backward compression spring 52, in conjunction with the magnetorheological damper 53, can restore the car seat to its initial design position, resulting in a rapid response and good anti-motion sickness effect.

[0064] Preferably, the mounting bracket 3 is provided with a locking mechanism, which includes two locking tongues 34, two cables 35, and an unlocking member 36. The base frame 2 is provided with a locking groove 26. When the locking tongues 34 are locked into the locking groove 26, the mounting bracket 3 can be restricted from sliding back and forth relative to the base frame 2. The unlocking member 36 is connected to the locking tongues 34 via cables 35, and the unlocking member 36 can pull the locking tongues 34 through the cables 35, causing the locking tongues 34 to disengage from the locking groove 26. A locking groove 26 is symmetrically provided on both sides of the base frame 2, and a corresponding locking tongue 34 is provided on each side. The unlocking member 36 is connected to one locking tongue 34 via a cable 35, and to the other locking tongue 34 via another cable 35. By pulling the cables 35, the unlocking member 36 disengages the locking tongues 34 from the locking groove 26, thereby releasing the restriction on the back and forth sliding of the mounting bracket 3 relative to the base frame 2. A reset elastic element, such as a reset spring, can be installed on the locking tongue 34 to ensure that the locking tongue 34 can be reset and locked into the locking groove 26. The unlocking element 36 can be a motor, which can pull the cable 35 by rotation or extension, thereby driving the locking tongue 34 to move.

[0065] In actual use, this embodiment is equipped with a locking mechanism on the mounting bracket 3. When the locking tongue 34 is locked into the locking groove 26 on the base frame 2, the mounting bracket 3 can be restricted from sliding back and forth relative to the base frame 2, which is equivalent to turning off the anti-motion sickness function. At this time, it is in the state of a normal car seat.

[0066] like Figures 3-5As shown, in the basin 6, left lifting mechanism 7, and right lifting mechanism 8, both left lifting mechanism 7 and right lifting mechanism 8 are mounted on the mounting bracket 3. The basin 6 is mounted on the left lifting mechanism 7 and right lifting mechanism 8. The left lifting mechanism 7 can drive the left side of the basin 6 to move up and down, and the right lifting mechanism 8 can drive the right side of the basin 6 to move up and down. Specifically, in this embodiment, both the left lifting mechanism 7 and right lifting mechanism 8 include a first lifting link, a second lifting link, and a driving member 780, wherein the driving member 780 is configured as a lead screw motor. The first lifting link and the second lifting link are hinged at the middle to form a scissor leg structure. One end of the first lifting link is rotatably connected to the basin 6, and the other end of the first lifting link is slidably mounted on the mounting bracket 3. One end of the second lifting link is rotatably connected to the mounting bracket 3, and the other end of the second lifting link is slidably mounted on the basin 6. The drive component 780 is mounted on the mounting bracket 3 and can drive the end of the first lifting link near the mounting bracket 3 to slide on the mounting bracket 3. The first and second lifting links then drive the seat basin 6 to move up and down. Specifically, the extension and retraction of the lead screw of the drive component 780 causes the sliding end of the first lifting link to slide on the mounting bracket 3, causing the first and second lifting links to rotate relative to each other, thus raising or lowering the seat basin 6.

[0067] The specific arrangement of the sliding end of the first lifting link and the second lifting link is as follows: a first sliding groove 33 is provided on the mounting bracket 3, and a second sliding groove 60 is provided on the seat basin 6. The end of the first lifting link near the mounting bracket 3 is slidably set in the first sliding groove 33, and the end of the second lifting link near the seat basin 6 is slidably set in the second sliding groove 60.

[0068] In actual use, when the vehicle's Y-axis (i.e., longitudinal) acceleration exceeds the motion sickness threshold, the left or right lifting mechanism can lift the left or right side of the seat 6, tilting the passenger and reducing the acceleration experienced by the passenger, thereby preventing motion sickness. In other words, this car seat can effectively prevent motion sickness. Furthermore, in this embodiment, both the left lifting mechanism 7 and the right lifting mechanism 8 include a first lifting rod 781, a second lifting rod 782, and a driving member 780. The first lifting rod 781 and the second lifting rod 782 form a scissor-leg structure. The driving member 780 drives the first lifting rod 781, which in turn drives the second lifting rod 782, causing the seat 6 to move up and down. The structure is simple, and the left lifting mechanism 7 and the right lifting mechanism 8 can operate independently or in conjunction.

[0069] The working principle of the motion sickness-preventing car seat in this embodiment is as follows:

[0070] In its natural state, the car seat is in its initial design position, at which point the magnetorheological damper 53 is in the middle position with maximum damping, and the car seat reliably remains in its initial design position.

[0071] If the car's backward acceleration exceeds the motion sickness threshold, such as when the accelerator is suddenly pressed (this acceleration can be obtained through the X-axis acceleration sensor), the mounting bracket 3 slides backward relative to the base frame 2, and the seat 6 and the passenger on the seat 6 move backward accordingly. At this time, the stop block 31 on the mounting bracket 3 compresses the rearward compression spring 52, and the damping of the magnetorheological damper 53 decreases. The kinetic energy is absorbed through the magnetorheological damper 53 and the rearward compression spring 52. At this time, the electric slide rail causes the car seat to move backward as a whole, reducing the acceleration experienced by the passenger and preventing motion sickness. After the backward acceleration decreases, the electric slide rail can reset the car seat, and the increased damping of the magnetorheological damper 53, together with the action of the rearward compression spring 52, resets the mounting bracket 3, that is, the seat 6 and the passenger also reset.

[0072] If the forward acceleration of the car exceeds the motion sickness threshold, such as when the brakes are suddenly applied (this acceleration can be obtained through the X-axis acceleration sensor), the mounting bracket 3 slides forward relative to the base frame 2, and the seat 6 and the passenger on the seat 6 move forward accordingly. At this time, the stop block 31 on the mounting bracket 3 compresses the forward compression spring 51 forward, and the damping of the magnetorheological damper 53 decreases. The kinetic energy is absorbed by the magnetorheological damper 53 and the forward compression spring 51. At this time, the electric slide rail makes the car seat move forward as a whole, reducing the acceleration experienced by the passenger and preventing the passenger from getting motion sickness. After the forward acceleration decreases, the electric slide rail can reset the car seat, and the damping of the magnetorheological damper 53 increases, and together with the action of the forward compression spring 51, the mounting bracket 3 resets, that is, the seat 6 and the passenger also reset.

[0073] When the car is driving on a curve or turning, if the vehicle's lateral acceleration exceeds the motion sickness threshold (this acceleration can be obtained through a Y-axis acceleration sensor), either the left lifting mechanism 7 or the right lifting mechanism 8 will activate. Specifically, when the Y-axis acceleration sensor obtains the vehicle's real-time Y-axis acceleration, the anti-motion sickness algorithm calculates the seat's tilt angle. The lifting motor (i.e., drive component 780) then activates to lift one side of the car seat to the required tilt angle. By tilting the seat, the Y-axis acceleration experienced by the passenger is reduced, thus preventing motion sickness. In other words, by moving the passenger towards the side experiencing the same acceleration through the car seat, the acceleration experienced by the passenger is reduced, thereby preventing motion sickness.

Claims

1. A car seat capable of preventing car sickness, characterized by , comprising: a first slide rail; a chassis and a mounting bracket, the chassis being provided on the first slide rail in a forward and backward sliding manner, and the chassis being provided with a first driving mechanism for driving the forward and backward sliding of the chassis; the mounting bracket being provided on the chassis in a forward and backward sliding manner; a damping system provided between the chassis and the mounting bracket, comprising a forward compression spring, a backward compression spring and a magnetorheological damper, when the car seat is in an initial design position: the mounting bracket slides forward relative to the chassis, the forward compression spring is compressed, and the damping of the magnetorheological damper changes; when the mounting bracket slides backward relative to the chassis, the backward compression spring is compressed, and the damping of the magnetorheological damper changes; a seat pan, a left lifting mechanism and a right lifting mechanism, the left lifting mechanism and the right lifting mechanism being provided on the mounting bracket, the seat pan being provided on the left lifting mechanism and the right lifting mechanism, and the left lifting mechanism being capable of driving the left side of the seat pan to perform lifting movement, and the right lifting mechanism being capable of driving the right side of the seat pan to perform lifting movement; the chassis is provided with a front limit and a rear limit respectively, a front end of the forward compression spring abuts against the front limit, and a rear end of the backward compression spring abuts against the rear limit; the mounting bracket is provided with a stopper, the stopper abuts against the rear end of the forward compression spring and the front end of the backward compression spring respectively, and when the mounting bracket slides forward and backward relative to the chassis, the forward compression spring or the backward compression spring is compressed through the stopper; the chassis is provided with a second slide rail, the mounting bracket is provided on the second slide rail in a forward and backward sliding manner; the front limit and the rear limit are provided at the front and rear ends of the second slide rail respectively, a connecting shaft is provided between the front limit and the rear limit, the connecting shaft is provided with a guide slide rod, the forward compression spring and the backward compression spring are sleeved on the guide slide rod, and the stopper is sleeved on the guide slide rod and can slide forward and backward along the guide slide rod.

2. The anti-motion sickness automobile seat according to claim 1, wherein the mounting bracket is provided with a first bracket, the chassis is provided with a second bracket, the magnetorheological damper is installed on the first bracket, and two ends of the magnetorheological damper abut against the first bracket and the second bracket respectively.

3. The anti-motion sickness automobile seat according to claim 1 or 2, characterized by, the force of the forward compression spring and the magnetorheological damper on the mounting bracket can make the mounting bracket slide forward and then return backward; the force of the backward compression spring and the magnetorheological damper on the mounting bracket can make the mounting bracket slide backward and then return forward.

4. The car seat capable of preventing carsickness according to claim 1, wherein the bottom of the mounting bracket is provided with a bottom cover, the bottom cover covers the second slide rail and is in sliding cooperation with the second slide rail; the bottom cover and the second slide rail jointly form a mounting cavity, and the forward compression spring, the backward compression spring and the stopper are all in the mounting cavity.

5. The anti-motion sickness automobile seat of claim 1, wherein, the left lifting mechanism and the right lifting mechanism each comprise a first lifting connecting rod, a second lifting connecting rod and a driving member; The first lifting link is hingedly connected to the middle part of the second lifting link, one end of the first lifting link is rotatably connected to the seat pan, and the other end of the first lifting link is slidably arranged on the mounting bracket; One end of the second lifting link is rotatably connected to the mounting bracket, and the other end of the second lifting link is slidably arranged on the seat pan; The driving member is arranged on the mounting bracket, and can drive the end of the first lifting link close to the mounting bracket to slide on the mounting bracket, and drive the seat pan to move up and down through the first lifting link and the second lifting link.

6. The anti-motion sickness automobile seat of claim 5, wherein, The mounting bracket is provided with a first sliding groove, the seat pan is provided with a second sliding groove, the end of the first lifting link close to the mounting bracket is slidably arranged in the first sliding groove, and the end of the second lifting link close to the seat pan is slidably arranged in the second sliding groove; The driving member is configured as a lead screw motor.

7. The anti-motion sickness automobile seat of claim 1, wherein, The mounting bracket is provided with a locking mechanism, the locking mechanism comprises a locking tongue, a pull cable and an unlocking member; The bottom frame is provided with a locking groove, when the locking tongue is locked into the locking groove, the mounting bracket can be limited to slide forward and backward relative to the bottom frame; The unlocking member is connected to the locking tongue through the pull cable, and the unlocking member can pull the locking tongue through the pull cable to make the locking tongue separate from the locking groove.

8. The anti-motion sickness automobile seat of claim 1, wherein, The first driving mechanism is configured as an electric sliding rail, and the electric sliding rail can drive the bottom frame to slide forward and backward along the first sliding rail; The automobile seat is provided with an acceleration sensor, and the acceleration sensor can acquire the acceleration of the vehicle in real time.

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