Car seat capable of preventing carsickness

Abstract

The invention relates to the technical field of car seats, and discloses a car seat capable of preventing carsickness. The bottom frame is arranged on the first sliding rail in a front-back sliding mode, and the mounting support is arranged on the bottom frame in a front-back sliding mode; the damping system is arranged between the bottom frame and the installation support and comprises a forward compression spring, a backward compression spring and a magnetorheological damper, and when the automobile seat is located at the initial design position, the installation support slides forwards relative to the bottom frame, the forward compression spring is compressed, and damping of the magnetorheological damper is changed; when the mounting bracket slides backwards relative to the underframe, the backward compression spring is compressed, and the damping of the magnetorheological damper is changed; the left lifting mechanism can drive the left side of the sitting basin to ascend and descend, and the right lifting mechanism can drive the right side of the sitting basin to ascend and descend. The anti-carsickness automobile seat has the advantage that the anti-carsickness effect of the automobile seat is good.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seats, and in particular to an automobile seat capable of preventing motion sickness. Background Art

[0002] Motion sickness is a common phenomenon. Studies have shown that the proportion of people suffering from motion sickness is as high as 46%. In a dynamic environment, the passenger's body needs to constantly adjust its posture to maintain balance in order to maintain a stable posture and sense of direction. Everyone has a limit to the intensity and duration of this continuous adjustment. This limit is the dizziness threshold. If the stimulation exceeds this limit, motion sickness symptoms will appear. Currently, the main way to relieve motion sickness on the market is to take motion sickness medicine.

[0003] Automobile manufacturers have also adopted various measures to alleviate passengers' motion sickness. For example, some have developed anti-motion sickness glasses, which are made by placing blue liquid in the lensless frame. The blue liquid flows as the head turns, and the gravity balance is recreated through gravity. Some have developed VR glasses, which transmit the vehicle's driving data to the VR glasses, so that passengers wearing VR glasses can get driving information just like the driver. Some have kept the passenger's posture stable by inflating and deflating the backrest and the side wings of the seat cushion. However, these methods are not ideal for alleviating motion sickness. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a car seat that has good anti-motion sickness effect.

[0005] The technical solution adopted by the present invention to solve the technical problem is to provide a car seat capable of preventing motion sickness, comprising: First slide rail; A base frame and a mounting bracket, wherein the base frame can be slidably arranged on the first slide rail, and the base frame is provided with a first driving mechanism for driving the base frame to slide forward and backward; the mounting bracket can be slidably arranged on the base frame; A damping system is arranged between the base frame and the mounting bracket, and comprises a forward compression spring, a rearward compression spring and a magnetorheological damper. When the car seat is in the initial design position: 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 rearward relative to the base frame, the rearward compression spring is compressed, and the damping of the magnetorheological damper changes; A seat basin, a left lifting mechanism and a right lifting mechanism, wherein the left lifting mechanism and the right lifting mechanism are both arranged on the mounting bracket, the seat basin is arranged on the left lifting mechanism and the right lifting mechanism, and the left lifting mechanism can drive the left side of the seat basin to move up and down, and the right lifting mechanism can drive the right side of the seat basin to move up and down.

[0006] Furthermore, a first bracket is provided on the mounting bracket, a second bracket is provided on the base frame, the magnetorheological damper is installed on the first bracket, and two ends of the magnetorheological damper are respectively against the first bracket and the second bracket.

[0007] Furthermore, the force 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 backward; the force 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 forward.

[0008] Furthermore, the chassis is provided with a front limiter and a rear limiter respectively, the front end of the forward compression spring abuts against the front limiter, and the rear end of the rear compression spring abuts against the rear limiter; The mounting bracket is provided with a stopper, which is respectively movably opposed to the rear end of the forward compression spring and the front end of the backward compression spring. When the mounting bracket slides forward and backward relative to the base frame, the forward compression spring or the backward compression spring is compressed by the stopper.

[0009] Furthermore, the base frame is provided with a second slide rail, and the mounting bracket is slidably arranged on the second slide rail forward and backward; The front limit and the rear limit are respectively arranged at the front and rear ends of the second slide rail, a connecting shaft is arranged between the front limit and the rear limit, a guide slide rod is arranged on the connecting shaft, the forward compression spring and the rear compression spring are both sleeved on the guide slide rod, the stop block is sleeved on the guide slide rod and can slide forward and backward along the guide slide rod.

[0010] Furthermore, the bottom of the mounting bracket has a bottom cover, and the bottom cover is arranged on the second slide rail and slidably cooperates with the second slide rail; The bottom cover and the second slide rail are combined to form an installation cavity, and the forward compression spring, the backward compression spring and the stopper are all located in the installation cavity.

[0011] Further, the left lifting mechanism and the right lifting mechanism each include a first lifting connecting rod, a second lifting connecting rod and a driving member; 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 seat basin, and the other end of the first lifting link is slidably disposed 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 disposed on the seat basin; The driving member is arranged on the mounting bracket, and can drive one end of the first lifting link close to the mounting bracket to slide on the mounting bracket, and drive the seat basin to move up and down through the first lifting link and the second lifting link.

[0012] Further, the mounting bracket is provided with a first slide groove, the seat basin is provided with a second slide groove, one end of the first lifting link close to the mounting bracket is slidably disposed in the first slide groove, and one end of the second lifting link close to the seat basin is slidably disposed in the second slide groove; The driving member is configured as a lead screw motor.

[0013] Furthermore, a locking mechanism is provided on the mounting bracket, and the locking mechanism includes a locking tongue, a cable and an unlocking member; The base frame is provided with a locking groove, and when the locking tongue is locked into the locking groove, the mounting bracket can be restricted from sliding forward and backward relative to the base frame; the unlocking member is connected to the locking tongue via the pull cable, and the unlocking member can pull the locking tongue via the pull cable to disengage the locking tongue from the locking groove.

[0014] Further, the first driving mechanism is configured as an electric slide rail, and the electric slide rail can drive the chassis to slide forward and backward along the first slide rail; The car seat is provided with an acceleration sensor, and the acceleration sensor can obtain the acceleration of the vehicle in real time.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the present invention, when the acceleration of the vehicle in the X direction (i.e., the front and rear direction) exceeds the motion sickness threshold, the seat pan can move forward and backward, and the forward compression spring or the rearward compression spring cooperates with the magnetorheological damper to absorb the motion energy. At the same time, the first drive mechanism (i.e., the electric slide rail) moves the base in the same direction, thereby reducing the acceleration felt by the passenger and preventing the passenger from motion sickness. When the acceleration of the vehicle in the Y direction (i.e., the longitudinal direction) exceeds the motion sickness threshold, the left lifting mechanism or the right lifting mechanism can lift the left or right side of the seat pan to tilt the passenger, reduce the acceleration received by the passenger, and prevent the passenger from motion sickness. That is, the present car seat can effectively prevent passengers from motion sickness.

[0016] In the present invention, since the magnetorheological fluid of the magnetorheological damper can quickly change its physical properties under the action of a magnetic field, from a liquid-like state to a state with high viscosity or a fixed state, the forward compression spring or the backward compression spring in conjunction with the magnetorheological damper can quickly absorb the forward and backward movement energy, and after the acceleration is reduced, the forward compression spring or the backward compression spring in conjunction with the magnetorheological damper can restore the car seat to the initial design position, with a rapid response.

[0017] In the present 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 bidet rise and fall. The structure is simple, and the left lifting mechanism and the right lifting mechanism can act independently or in linkage.

[0018] In the present 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 forward and backward relative to the base frame, which is equivalent to turning off the anti-motion sickness function. At this time, the seat is in the state of an ordinary car seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the car seat capable of preventing motion sickness of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure after the backrest is removed; Figure 3 This is the assembly drawing of the basin, left and right lifting mechanism and mounting bracket; Figure 4 for Figure 3 Side view of Figure 5 This is an exploded view of the seat basin, left and right lifting mechanism, and mounting bracket; Figure 6 An assembly drawing of the first slide rail, the base frame, the mounting bracket, the first drive mechanism, the damping system, and the locking mechanism; Figure 7 It is a partial structural diagram of the chassis, mounting bracket, locking mechanism and damping system; Figure 8 for Figure 6 Exploded view after removing the first driving mechanism and the first slide rail.

[0020] In the figure: 1. The first slide rail; 2. Base frame; 20. Second bracket; 21. Front limit; 22. Rear limit; 23. Second slide rail; 24. Connecting shaft; 25. Guide rod; 26. Locking slot; 230. Installation cavity; 3. Mounting bracket; 30. First bracket; 31. Stopper; 32. Bottom cover; 33. First slide groove; 34. Lock tongue; 35. Cable; 36. Unlocking member; 4. A first driving mechanism; 5. Damping system; 51. Forward compression spring; 52. Rearward compression spring; 53. Magnetorheological damper; 6. bidet; 60. second chute; 7. Left lifting mechanism; 780. Driving member; 781. First lifting rod; 782. Second lifting rod; 8. Right lifting mechanism; 9. Backrest. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] 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 position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] like Figure 1-Figure 2 as well as Figure 8 As shown, a car seat capable of preventing motion sickness mainly comprises: a first slide rail 1, a base frame 2, a mounting bracket 3, a first driving mechanism 4, a damping system 5, a seat pan 6, a left lifting mechanism 7, a right lifting mechanism 8 and a backrest 9, wherein the backrest 9 is rotatably arranged on the seat pan 6.

[0027] The car seat is supported as a whole on two first slide rails 1 arranged in parallel, and can move forward and backward along the first slide rails 1. Specifically, a first driving mechanism 4 is arranged on the base frame 2, and the base frame 2 is driven to slide forward and backward along the two first slide rails 1 by the first driving mechanism 4, so that the car seat can slide forward and backward as a whole. The first driving mechanism 4 in this embodiment is configured as an electric slide rail, that is, the car seat can slide forward and backward as a whole through the electric slide rail, and the power source of the electric slide rail is a motor, and the whole is an existing conventional structure, which will not be described in detail here.

[0028] The base frame 2 and the mounting bracket 3 are arranged on the first slide rail 1 so as to be slidable forward and backward. The inner side of the base frame 2 is low and the outer side is high, forming a high-low rail structure. The mounting bracket 3 is arranged on the base frame 2 so as to be slidable forward and backward.

[0029] like Figure 6-Figure 8 As shown, the damping system 5 is arranged between the base frame 2 and the mounting bracket 3, and includes a forward compression spring 51, a backward compression spring 52 and a magnetorheological damper 53, wherein a forward compression spring 51 is provided on the left and right sides of the car seat, and a backward compression spring 52 is provided on the left and right sides of the car seat. In actual use, when the car seat is in the 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 backward compression spring 52 is compressed, and the damping of the magnetorheological damper 53 changes. It needs to be explained that the magnetorheological damper 53, i.e., the MR damper, is a device that uses the characteristics of magnetorheological fluid to achieve vibration reduction and vibration control. Magnetorheological fluid is an intelligent material that can quickly change its physical properties under the action of a magnetic field, from a liquid-like state to a state with high viscosity or solid-like behavior. When the forward or backward acceleration of the vehicle reaches a threshold, the forward compression spring 51 cooperates with the magnetorheological damper 53 or the backward compression spring 52 cooperates with the magnetorheological damper 53 to absorb the motion energy, and the electric slide rail moves the car seat in the same direction, thereby reducing the acceleration experienced by the passenger and preventing the passenger from motion sickness. When the car seat is in the initial design position, the magnetorheological damper 53 has the maximum damping.

[0030] Specifically, a first bracket 30 is provided on the mounting bracket 3, a second bracket 20 is provided on the base frame 2, a magnetorheological damper 53 is installed on the first bracket 30, and two ends of the magnetorheological damper 53 are respectively against the first bracket 30 and the second bracket 20, that is, one end of the magnetorheological damper 53 is against the first bracket 30, and the other end of the magnetorheological damper 53 is against the second bracket 20. When the mounting bracket 3 slides forward and backward relative to the base frame 2, the magnetorheological damper 53 can generate damping. The damping effect of the magnetorheological damper 53 can be achieved by controlling the generation and disappearance of the magnetic field. During use, the force of the forward compression spring 51 and the magnetorheological damper 53 on the mounting bracket 3 can cause the mounting bracket 3 to reset backward after sliding forward. The force of the backward compression spring 52 and the magnetorheological damper 53 can cause the mounting bracket 3 to reset forward after sliding backward.

[0031] Furthermore, a front limit 21 and a rear limit 22 are respectively provided on the chassis 2, and 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 end of the forward compression spring 51 is limited by the front limit 21, and the rear end of the rear compression spring 52 is limited by the rear limit 22. A stopper 31 is provided on the mounting bracket 3, and the stopper 31 is respectively movably abutted against the rear end of the forward compression spring 51 and the front end of the rear compression spring 52. When the mounting bracket 3 slides forward and backward relative to the chassis 2, the forward compression spring 51 or the rear compression spring 52 is compressed by the stopper 31. Furthermore, the front limit 21 and the rear limit 22 are respectively arranged at the front and rear ends of the second slide rail 23, a connecting shaft 24 is arranged between the front limit 21 and the rear limit 22, a guide slide bar 25 is arranged on the connecting shaft 24, a forward compression spring 51 and a backward compression spring 52 are both sleeved on the guide slide bar 25, a stopper 31 is sleeved on the guide slide bar 25, and can slide forward and backward along the guide slide bar 25, the forward compression spring 51 and the backward compression spring 52 are restricted by the guide slide bar 25, and it is ensured that the forward compression spring 51 and the backward compression spring 52 will not be separated from the guide slide bar 25 when they are compressed. The stopper 31 is sleeved on the guide slide bar 25, and can slide along the guide slide bar 25, and it is ensured that the stopper 31 moves reliably and will not be separated from the guide slide bar 25.

[0032] The bottom frame 2 has a second slide rail 23, and the mounting bracket 3 can be slidably arranged on the second slide rail 23. The bottom of the mounting bracket 3 has a bottom cover 32, which is arranged on the second slide rail 23 and slides with the second slide rail 23. The bottom cover 32 and the second slide rail 23 are surrounded by a mounting cavity 230, and the forward compression spring 51, the backward compression spring 52 and the stopper 31 are all in the mounting cavity 230. It is ensured that the movement of the forward compression spring 51, the backward compression spring 52 and the stopper 31 is not interfered by the outside world. In addition, an acceleration sensor (not shown in the figure) is configured on the car seat, and the acceleration sensor can obtain the acceleration of the vehicle in real time. Specifically, acceleration sensors can be respectively arranged to respectively detect the front and rear acceleration (i.e., the acceleration in the X direction) and the longitudinal acceleration (i.e., the acceleration in the Y direction) of the vehicle in real time.

[0033] In actual use, when the acceleration of the vehicle in the X direction (i.e., the front and rear direction) exceeds the motion sickness threshold, the seat pan 6 can move forward and backward (the seat pan 6 moves forward and backward along with the front and rear movement of the mounting bracket 3), and the forward compression spring 51 or the rear compression spring 52 cooperates with the magnetorheological damper 53 to absorb the motion energy. At the same time, the first drive mechanism 4 (i.e., the electric slide rail) makes the base move in the same direction, thereby reducing the acceleration felt by the passenger and preventing the passenger from motion sickness. Among them, since the magnetorheological fluid of the magnetorheological damper 53 can quickly change its physical properties under the action of the magnetic field, from a liquid-like state to a state with high viscosity or a fixed state, the forward compression spring 51 or the rear compression spring 52 cooperates with the magnetorheological damper 53 to quickly absorb the forward and backward motion energy, and after the acceleration is reduced, the forward compression spring 51 or the rear compression spring 52 cooperates with the magnetorheological damper 53 to restore the car seat to the initial design position, with rapid response and good anti-motion sickness effect.

[0034] Preferably, a locking mechanism is provided on the mounting bracket 3, and the locking mechanism includes two locking tongues 34, two cables 35, and an unlocking member 36. A locking groove 26 is provided on the base frame 2, and when the locking tongue 34 is locked into the locking groove 26, the mounting bracket 3 can be restricted from sliding forward and backward relative to the base frame 2. The unlocking member 36 is connected to the locking tongue 34 through the cable 35, and the unlocking member 36 can pull the locking tongue 34 through the cable 35 to make the locking tongue 34 disengage from the locking groove 26. A locking groove 26 is symmetrically provided on the base frame 2, and a corresponding locking tongue 34 is provided respectively. The unlocking member 36 is connected to one locking tongue 34 through a cable 35, and the unlocking member 36 is connected to another locking tongue 34 through another cable 35. The unlocking member 36 pulls the cable 35 to make the locking tongue 34 disengage from the locking groove 26, so as to release the restriction on the forward and backward sliding of the mounting bracket 3 relative to the base frame 2. Among them, a reset elastic member, such as a reset spring, can be provided on the lock tongue 34 to ensure that the lock tongue 34 can be reset and locked into the lock groove 26. The unlocking member 36 can be a motor, which can pull the cable 35 by rotation or telescopic movement to drive the lock tongue 34 to move.

[0035] In actual use, this embodiment provides 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 forward and backward relative to the base frame 2, which is equivalent to turning off the anti-motion sickness function. At this time, the seat is in the state of an ordinary car seat.

[0036] like Figure 3-Figure 5 As shown, among the seat basin 6, the left lifting mechanism 7 and the right lifting mechanism 8, the left lifting mechanism 7 and the right lifting mechanism 8 are both arranged on the mounting bracket 3, the seat basin 6 is arranged on the left lifting mechanism 7 and the right lifting mechanism 8, and the left lifting mechanism 7 can drive the left side of the seat basin 6 to move up and down, and the right lifting mechanism 8 can drive the right side of the seat basin 6 to move up and down. Specifically, the left lifting mechanism 7 and the right lifting mechanism 8 of this embodiment both include a first lifting link, a second lifting link and a driving member 780, wherein the driving member 780 is configured as a screw motor. The first lifting link is hinged to the middle part of the second lifting link to form a scissor leg structure, one end of the first lifting link is rotatably connected to the seat basin 6, and the other end of the first lifting link is slidably arranged 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 arranged on the seat basin 6. The driving member 780 is disposed on the mounting bracket 3, and can drive the end of the first lifting link close to the mounting bracket 3 to slide on the mounting bracket 3, and drive the seat basin 6 to move up and down through the first lifting link and the second lifting link. That is, through the extension and retraction movement of the screw rod of the driving member 780, the sliding end of the first lifting link is driven to slide on the mounting bracket 3, so that the first lifting link and the second lifting link rotate relative to each other, so that the seat basin 6 is lifted or sunk.

[0037] Among them, the specific setting method in which one end of the first lifting link and the second lifting link can slide is: a first sliding groove 33 is provided on the mounting bracket 3, and a second sliding groove 60 is provided on the sitting basin 6. The end of the first lifting link close to the mounting bracket 3 can be slidably set in the first sliding groove 33, and the end of the second lifting link close to the sitting basin 6 can be slidably set in the second sliding groove 60.

[0038] In actual use, when the Y-direction (i.e. longitudinal) acceleration of the vehicle exceeds the motion sickness threshold, the left lifting mechanism or the right lifting mechanism can lift the left or right side of the seat basin 6 to tilt the passenger, reduce the acceleration to which the passenger is subjected, and thus prevent the passenger from motion sickness. That is, the car seat can effectively prevent passengers from motion sickness. Furthermore, the left lifting mechanism 7 and the right lifting mechanism 8 of this embodiment both 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, and the transmission of the second lifting rod 782 can make the seat basin 6 move up and down. The structure is simple, and the left lifting mechanism 7 and the right lifting mechanism 8 can act independently or in conjunction.

[0039] The working principle of the car seat capable of preventing motion sickness in this embodiment is as follows: In a natural state, the car seat is in an initial design position, at which time the magnetorheological damper 53 is in a middle position with maximum damping, and the car seat can stay in the initial design position reliably.

[0040] If the backward acceleration of the car exceeds the motion sickness threshold, for example, when the accelerator is stepped on suddenly (this acceleration can be obtained by the X-axis acceleration sensor), the mounting bracket 3 slides backward relative to the base frame 2, and the seat pan 6 and the passenger on the seat pan 6 move backward accordingly. At this time, the block 31 on the mounting bracket 3 compresses the rearward compression spring 52 backward, and the damping of the magnetorheological damper 53 becomes smaller at this time, and the motion energy is absorbed by 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 to which the passenger is subjected, and preventing the passenger from motion sickness. After the backward acceleration is reduced, the electric slide rail can reset the car seat, and the damping of the magnetorheological damper 53 becomes larger, and together with the rearward compression spring 52, the mounting bracket 3 is reset, that is, the seat pan 6 and the passenger are also reset.

[0041] If the forward acceleration of the car exceeds the motion sickness threshold, for example, when the brakes are slammed on (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 pan 6 and the passenger on the seat pan 6 move forward accordingly. At this time, the block 31 on the mounting bracket 3 compresses the forward compression spring 51 forward, and the damping of the magnetorheological damper 53 at this time becomes smaller, and the motion energy is absorbed by the magnetorheological damper 53 and the forward compression spring 51. At this time, the electric slide rail causes the car seat to move forward as a whole, reducing the acceleration to which the passenger is subjected, and preventing the passenger from motion sickness. After the forward acceleration is reduced, the electric slide rail can reset the car seat, and the damping of the magnetorheological damper 53 becomes larger, and together with the forward compression spring 51, the mounting bracket 3 is reset, that is, the seat pan 6 and the passenger are also reset.

[0042] When the car is traveling on a curve or turning, if the lateral acceleration of the vehicle is greater than the motion sickness threshold (this acceleration can be obtained by the Y-axis acceleration sensor), the left lifting mechanism 7 or the right lifting mechanism 8 will work. Specifically, when the Y-axis acceleration sensor obtains the real-time Y-axis acceleration of the vehicle, the tilt angle of the seat is calculated by the anti-motion sickness algorithm, and the lifting motor (i.e., the driving member 780) is started to lift one side of the car seat to reach the required tilt angle, and the Y-axis acceleration received by the passenger is reduced by tilting the seat, thereby preventing the passenger from motion sickness. That is, the car seat drives the passenger to move to the side with the same acceleration, reducing the acceleration received by the passenger, thereby achieving the effect of preventing the passenger from motion sickness.

Claims

1. A car seat capable of preventing motion sickness, characterized in that ,include: First slide rail; A base frame and a mounting bracket, wherein the base frame can be slidably arranged on the first slide rail, and the base frame is provided with a first driving mechanism for driving the base frame to slide forward and backward; the mounting bracket can be slidably arranged on the base frame; A damping system is arranged between the base frame and the mounting bracket, and comprises a forward compression spring, a rearward compression spring and a magnetorheological damper. When the car seat is in the initial design position: 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 rearward relative to the base frame, the rearward compression spring is compressed, and the damping of the magnetorheological damper changes; A seat basin, a left lifting mechanism and a right lifting mechanism, wherein the left lifting mechanism and the right lifting mechanism are both arranged on the mounting bracket, the seat basin is arranged on the left lifting mechanism and the right lifting mechanism, and the left lifting mechanism can drive the left side of the seat basin to move up and down, and the right lifting mechanism can drive the right side of the seat basin to move up and down.

2. The anti-motion sickness car seat according to claim 1, characterized in that: The mounting bracket is provided with a first bracket, the base frame is provided with a second bracket, the magnetorheological damper is installed on the first bracket, and two ends of the magnetorheological damper are respectively against the first bracket and the second bracket.

3. The anti-motion sickness car seat according to claim 1 or 2, characterized in that: The force 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 backward; the force 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 forward.

4. The anti-motion sickness car seat according to claim 1, characterized in that: The chassis is provided with a front limiter and a rear limiter respectively, the front end of the forward compression spring abuts against the front limiter, and the rear end of the rear compression spring abuts against the rear limiter; The mounting bracket is provided with a stopper, which is respectively movably opposed to the rear end of the forward compression spring and the front end of the backward compression spring. When the mounting bracket slides forward and backward relative to the base frame, the forward compression spring or the backward compression spring is compressed by the stopper.

5. The anti-motion sickness car seat according to claim 4, characterized in that: The base frame is provided with a second slide rail, and the mounting bracket is slidably arranged on the second slide rail; The front limit and the rear limit are respectively arranged at the front and rear ends of the second slide rail, a connecting shaft is arranged between the front limit and the rear limit, a guide slide rod is arranged on the connecting shaft, the forward compression spring and the rear compression spring are both sleeved on the guide slide rod, the stop block is sleeved on the guide slide rod and can slide forward and backward along the guide slide rod.

6. The anti-motion sickness car seat according to claim 5, characterized in that: The bottom of the mounting bracket is provided with a bottom cover, and the bottom cover is arranged on the second slide rail and slidably cooperates with the second slide rail; The bottom cover and the second slide rail are combined to form an installation cavity, and the forward compression spring, the backward compression spring and the stopper are all located in the installation cavity.

7. The anti-motion sickness car seat according to claim 1, characterized in that: The left lifting mechanism and the right lifting mechanism each include a first lifting connecting rod, a second lifting connecting rod and a driving member; 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 seat basin, and the other end of the first lifting link is slidably disposed 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 disposed on the seat basin; The driving member is arranged on the mounting bracket, and can drive one end of the first lifting link close to the mounting bracket to slide on the mounting bracket, and drive the seat basin to move up and down through the first lifting link and the second lifting link.

8. The anti-motion sickness car seat according to claim 7, characterized in that: The mounting bracket is provided with a first slide groove, the seat basin is provided with a second slide groove, one end of the first lifting link close to the mounting bracket is slidably disposed in the first slide groove, and one end of the second lifting link close to the seat basin is slidably disposed in the second slide groove; The driving member is configured as a lead screw motor.

9. The anti-motion sickness car seat according to claim 1, characterized in that: The mounting bracket is provided with a locking mechanism, which includes a locking tongue, a cable and an unlocking member; The base frame is provided with a locking groove, and when the locking tongue is locked into the locking groove, the mounting bracket can be restricted from sliding forward and backward relative to the base frame; The unlocking member is connected to the locking tongue via the pulling cable, and the unlocking member can pull the locking tongue via the pulling cable to disengage the locking tongue from the locking groove.

10. The anti-motion sickness car seat according to claim 1, characterized in that: The first driving mechanism is configured as an electric slide rail, and the electric slide rail can drive the chassis to slide forward and backward along the first slide rail; The car seat is provided with an acceleration sensor, and the acceleration sensor can obtain the acceleration of the vehicle in real time.

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