Seat and vehicle

Abstract

The utility model provides a seat and a vehicle. The seat comprises a headrest, a backrest and a buffering device. The buffer device comprises a first air bag, an air storage container and a valve; the first air bag is arranged in the headrest; the air storage container can be communicated with the first air bag through an air path; the valve is arranged in the gas path; when the backrest is subjected to impact force, the valve can be triggered, and the valve can conduct the air path so that the air storage container can inflate the first air bag. According to the arrangement, when a vehicle is collided, a driver and passengers on the seat lean backwards due to inertia, the body of the driver and passengers extrudes the backrest instantly, when the backrest is subjected to impact force, the valve is triggered to switch the state of the valve, at the moment, the valve conducts the air channel, and the high-air-pressure air storage container inflates the low-air-pressure first air bag instantly; the expanded first air bag can actively reduce the distance between the headrest and the driver and the passenger, the head of the driver and the passenger is restrained in advance, and the problem that in the prior art, the whiplash performance of an automobile seat is poor in the aspect of protecting the head of the driver and the passenger is solved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a seat and a vehicle. Background Art

[0002] With the development of the automobile industry, the research and development of the passive safety performance of automobiles is also constantly improving. In the simulated collision experiment of safety testing, the whiplash performance of the seat is an important assessment, requiring that after a collision, the seat needs to provide timely and sufficient support to the simulated driver and passenger to reduce the S-shaped bending damage to the head and spine.

[0003] In the prior art, conventional designs for improving the whiplash resistance of automobile seats are still insufficient in terms of head protection. In the whiplash resistance test results, the simulated injury to the driver's head is still a point of loss. Therefore, how to improve the whiplash resistance of automobile seats on the driver's head and form good head protection is still a direction that needs further research and development. Utility Model Content

[0004] In view of this, the present application provides a seat and a vehicle to solve the problem that the whiplash performance of automobile seats in the prior art is poor in terms of head protection for drivers and passengers.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A seat, comprising a headrest, a backrest and a buffer device; the buffer device comprises:

[0007] a first airbag disposed in the headrest;

[0008] An air storage container, capable of being connected to the first air bag through an air path;

[0009] a valve, arranged in the gas path;

[0010] Wherein, when the backrest is subjected to impact force, the valve can be triggered, and the valve can open the air path so that the air storage container can inflate the first airbag.

[0011] Optionally, the air storage container is a second airbag arranged in the backrest, and the second airbag can be squeezed due to the impact force. When the internal air pressure of the second airbag is less than a preset pressure, the valve blocks the air path. When the internal air pressure of the second airbag reaches the preset pressure, the valve opens the air path to inflate the first airbag.

[0012] Optionally, the second airbag is provided with a first pressure sensor for sensing the internal air pressure of the second airbag, and the valve is a solenoid valve and is communicatively connected with the first pressure sensor.

[0013] Optionally, the valve is a one-way valve.

[0014] Optionally, the solenoid valve is a two-position three-way solenoid valve and includes a first interface, a second interface and a third interface, the first interface is communicated with the first airbag, the second interface is communicated with the second airbag, and the third interface is communicated with the external environment;

[0015] When the internal air pressure of the second airbag is lower than the preset pressure, the first interface and the third interface are connected to each other so as to deflate the first airbag;

[0016] When the internal air pressure of the second airbag reaches the preset pressure, the first interface and the second interface are connected to inflate the first airbag.

[0017] Optionally, the first airbag is provided with an air leakage hole, and the effective flow area of ​​the air path is larger than the effective flow area of ​​the air leakage hole.

[0018] Optionally, the buffer device further comprises an air pump connected to the air storage container, and the air pump can inflate the air storage container.

[0019] Optionally, the first airbag includes a front side and a back side, the back side is connected to and shaped with a headrest back plate of the headrest, and the front side can expand and contract;

[0020] And / or, a buffer body covering the first airbag is provided in the headrest.

[0021] Optionally, the backrest is provided with a receiving space and a backrest spring is provided in the receiving space, a mounting back plate is provided at the center of the backrest spring, and the second airbag is connected to the mounting back plate and suspended in the receiving space.

[0022] A vehicle comprises a vehicle body and any one of the seats described above.

[0023] The seat provided in the present application includes a headrest, a backrest and a cushioning device; the cushioning device includes a first airbag, a gas storage container and a valve; the first airbag is arranged in the headrest; the gas storage container can be connected to the first airbag through an air path; the valve is arranged in the air path; wherein the backrest can trigger the valve when subjected to impact force, and the valve can open the air path so that the gas storage container can inflate the first airbag. With such arrangement, when the driver and the occupant sit on the seat normally, the gas storage container is filled with gas, the first airbag is in an uninflated contracted state, the internal gas pressure of the gas storage container is higher than the internal gas pressure of the first airbag, and the valve plays a role of blocking the gas path at this time; when the vehicle encounters a collision, the driver and the occupant on the seat will lean back due to inertia, and the torso will instantly squeeze the backrest. When the backrest is subjected to impact force, the valve is triggered to switch its state. At this time, the valve conducts the gas path, and the high-pressure gas storage container instantly inflates the low-pressure first airbag, and the first airbag expands rapidly. In this way, although the driver and the occupant's head lags behind the torso due to inertia after the collision, the inflated first airbag can actively reduce the distance between the headrest and the driver and the occupant, restrain the driver and the occupant's head in advance, and avoid the problem of delayed support of the headrest for the head, thereby improving the performance of the seat in protecting the driver and the occupant's head, and solving the problem that the whipping performance of the automobile seat in the prior art is not good in protecting the driver and the occupant's head. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the structure of a buffer device provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the structure of a seat provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of the first interface and the third interface of the valve provided in an embodiment of the present application being connected;

[0028] Figure 4 A schematic diagram showing the connection between the first interface and the second interface of the valve provided in an embodiment of the present application.

[0029] exist Figure 1-Figure 4 middle:

[0030] 1. Buffer device; 2. Headrest; 3. Backrest; 4. Seat;

[0031] 11. First airbag; 12. Second airbag; 13. Air path; 14. Valve; 15. First pressure sensor; 16. Air pump;

[0032] 21. Buffer body; 22. Headrest rod;

[0033] 31. Backrest spring;

[0034] 141, first interface; 142, second interface; 143, third interface. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] like Figure 1-Figure 4 As shown, the embodiment of the present application provides a seat, including a headrest 2, a backrest 3, a seat 4 and a buffer device 1; the buffer device 1 includes a first airbag 11, an air storage container and a valve 14; the first airbag 11 is arranged in the headrest 2; the air storage container can be connected with the first airbag 11 through an air path 13; the valve 14 is arranged in the air path 13; wherein, when the backrest 3 is subjected to impact force, the valve 14 can be triggered, and the valve 14 can conduct the air path 13, so that the air storage container inflates the first airbag 11, so that the first airbag 11 expands. The impact force is formed instantly when the driver and passengers are greatly squeezed against the backrest 3 due to the inertia after the vehicle collision. In the normal riding state, the pressure on the backrest 3 from the driver and passengers is not enough to constitute the impact force.

[0037] With such arrangement, when the driver and the passenger sit on the seat normally, the gas storage container is filled with gas, the first airbag 11 is in an uninflated contracted state, the internal gas pressure of the gas storage container is higher than the internal gas pressure of the first airbag 11, and the valve 14 plays a role of blocking the gas path 13 at this time; when the vehicle encounters a collision, the driver and the passenger on the seat will lean back due to inertia, and the torso will instantly squeeze the backrest 3. When the backrest 3 is subjected to impact force, the valve 14 is triggered to switch its state. At this time, the valve 14 conducts the gas path 13, and the high-pressure gas storage container instantly inflates the low-pressure first airbag 11, and the first airbag 11 expands rapidly. In this way, although the driver and the passenger's head lags behind the torso due to inertia after the collision, the expanded first airbag 11 can actively reduce the distance between the headrest 2 and the driver and the passenger, restrain the driver and the passenger's head in advance, and avoid the problem of the head being supported by the headrest 2 with delay, thereby improving the performance of the seat in protecting the driver and the passenger's head, and solving the problem that the whipping performance of the automobile seat in the prior art is not good in protecting the driver and the passenger's head.

[0038] Moreover, since the opening trigger mechanism of the valve 14 is designed to be triggered by the impact force exerted on the backrest 3, such a design more intuitively reflects that the current driver and passenger are in an unsafe state, and the opening trigger of the valve 14 is more direct and accurate.

[0039] It should be noted that the air path 13 may be a flexible tube or a fixed ventilation channel formed inside the seat.

[0040] In a specific embodiment, the gas storage container is a container of a flexible material, and the gas storage container is the second airbag 12 disposed in the backrest 3. When the backrest 3 is subjected to an impact force, the impact force can act on the second airbag 12 filled with gas, and the second airbag 12 can be squeezed due to the impact force; wherein, when the internal air pressure of the second airbag 12 is less than a preset pressure, the valve 14 blocks the air path 13, and when the internal air pressure of the second airbag 12 reaches the preset pressure, the valve 14 conducts the air path 13 to inflate the first airbag 11. The normal state of the first airbag 11 is a contracted state, and the normal state of the second airbag 12 is an expanded state; the preset pressure is an empirical value obtained through vehicle conditions and tests during the design stage.

[0041] With such arrangement, the first airbag 11 and the second airbag 12 form a linkage relationship. Through the change in the body state of the driver and occupant during the collision, the second airbag 12 is squeezed, causing the internal air pressure of the second airbag 12 to change instantly, thereby triggering the valve 14 to switch states, connecting the air path 13 between the second airbag 12 and the first airbag 11, and using the pressure difference to complete the inflation of the first airbag 11, which can play a protective role in various collision speed situations; at the same time, the pressure relief of the second airbag 12 cushions the driver and occupant's backrest 3. Since the airbags of the backrest 3 and the headrest 2 can cushion the driver and occupant, the acceleration values ​​of the torso and head can be further reduced, further improving the protection performance for the driver and occupant.

[0042] In an optional embodiment, the second airbag 12 is provided with a first pressure sensor 15 for sensing the internal air pressure of the second airbag 12, the first pressure sensor 15 detects a pressure change signal, the valve 14 is a solenoid valve and is communicatively connected to the first pressure sensor 15 through a controller, specifically, through a main controller of the vehicle.

[0043] With such arrangement, when the internal air pressure of the second airbag 12 is lower than the preset pressure, the main controller of the vehicle controls the solenoid valve to close and block the air path 13; when the second airbag 12 is subjected to impact force and the space is squeezed until the internal air pressure reaches the preset pressure, the main controller of the vehicle transmits a signal to the solenoid valve to control the solenoid valve to open and conduct the air path 13, thereby achieving the effect of rapid response of the buffer device 1 when a collision occurs.

[0044] In an optional embodiment, the valve 14 is a one-way valve. In this configuration, the preset pressure is the one-way valve activation pressure. Under normal conditions, the internal air pressure of the second airbag 12 is less than the one-way valve activation pressure, and the one-way valve is closed to block the air path 13. When the second airbag 12 is subjected to impact force and the space is squeezed until the internal air pressure reaches the one-way valve activation pressure, the one-way valve opens to conduct the air path 13, which can also achieve the effect of rapid response of the buffer device 1 when a collision occurs.

[0045] It is known from the above embodiments that when a vehicle collision occurs, the first airbag 11 is inflated. Therefore, in order to achieve the purpose of the buffer device 1 being able to work repeatedly, after the collision, the first airbag 11 needs to be deflated to return to the contracted state. In a specific embodiment, the solenoid valve is a two-position three-way solenoid valve and includes a first interface 141, a second interface 142 and a third interface 143, and can be specifically a two-position three-way normally closed solenoid valve. The first interface 141 is connected to the first airbag 11, the second interface 142 is connected to the second airbag 12, and the third interface 143 is connected to the external environment.

[0046] When the internal air pressure of the second airbag 12 is lower than the preset pressure, the first interface 141 and the third interface 143 are connected to deflate the first airbag 11;

[0047] When the internal air pressure of the second airbag 12 reaches a preset pressure, the first interface 141 and the second interface 142 are connected to inflate the first airbag 11 .

[0048] With such arrangement, the two-position three-way solenoid valve has two working states, which correspond to the two states of the first airbag 11. The valve 14 not only has the function of opening and closing the air path 13, but also plays the role of controlling the deflation of the first airbag 11. In this way, under normal circumstances, the headrest 2 is in a contracted state of decompression, which does not affect the aesthetics and comfort of the seat.

[0049] In another specific embodiment, the first airbag 11 is provided with an air leakage hole, and the effective flow area of ​​the air path 13 is larger than the effective flow area of ​​the air leakage hole. In this way, the first airbag 11 has a very small air leakage hole for air leakage. When a collision occurs, the inflation speed of the air path 13 is greater than the air leakage speed of the air leakage hole, so that the first airbag 11 can still expand to support the head of the driver and occupant and still play a protective role in the collision. At the same time, the slow pressure relief effect of the air leakage hole after the collision disappears can also shrink the first airbag 11 and restore the headrest 2 to its original state.

[0050] In another specific embodiment, the first airbag 11 is provided with an air release pipe, and an additional electromagnetic valve for air release is provided on the air release pipe, which is connected to the controller through communication to control the air release of the first airbag 11.

[0051] When the collision is over, the squeezing of the backrest 3 disappears, and the air storage container also loses gas due to inflating the first airbag 11. At this time, the air storage container needs to be refilled with air. In a specific embodiment, the buffer device 1 also includes an air pump 16 connected to the air storage container. The air pump 16 can inflate the air storage container, and the air pump 16 is communicatively connected to the controller.

[0052] In the embodiment where the air storage container is the second air bag 12, after the collision, the squeezing of the second air bag 12 disappears, so the internal air pressure is restored to below the preset pressure. When the internal air pressure of the second air bag 12 is less than the preset pressure, the air pump 16 can inflate the air storage container. In this way, the cushioning device 1 can play its role repeatedly, and the use and maintenance costs are also low.

[0053] Of course, in addition to the method of replenishing air with the inflation pump 16, it is also feasible to set the second airbag 12 to be an elastic memory material, and to open an intake pipe in the second airbag 12, in which a one-way valve is set that only allows air to enter the second airbag 12. In this way, the second airbag 12 can complete the air replenishment by self-inhaling air through the intake pipe during the rebound process.

[0054] Regarding the structural design of the first airbag 11, in a preferred embodiment, the first airbag 11 includes a front side and a back side, the first airbag 11 is connected to the frame of the headrest 2, and the back side of the first airbag 11 is fixedly connected and shaped to the headrest back plate of the headrest 2, and the front side can expand and contract. In this way, the back side of the first airbag 11 is limited and shaped, while the front side of the first airbag 11 is the side facing the driver and the occupant, and the expansion of the front side can ensure that the expansion amount generated enables the headrest 2 to directly and effectively reduce the gap between the headrest and the driver and the occupant, so that the headrest 2 provides timely protection.

[0055] More specifically, the first airbag 11 and the second airbag 12 can both be made of coated polyester material, and their edges are sealed and connected by hot-melt technology.

[0056] In another preferred embodiment, a buffer body 21 covering the first airbag 11 is provided in the headrest 2 , and the buffer body 21 is foam or sponge of the headrest 2 , so as to further improve the seat comfort.

[0057] In another specific embodiment, the backrest frame forms a storage space in the backrest 3, and a backrest spring 31 is provided in the storage space. A mounting back plate is provided at the center of the backrest spring 31. The second airbag 12 is connected to the mounting back plate and is suspended in the storage space when inflated. In this way, the second airbag 12 is located exactly in the main force-bearing area of ​​the backrest 3, directly subjected to the squeezing effect of the driver and the passenger, and the seat as a whole does not affect the riding comfort of the human body.

[0058] As for other connection relationships between the buffer device 1 and various parts of the seat, it can be arranged that the air pump 16 is arranged in the frame of the backrest 3, and the air path 13 passes through the headrest rod 22 of the headrest 2.

[0059] In addition to the above-mentioned method in which the gas storage container is the second airbag 12, in a feasible embodiment, the gas storage container can also be set as a container of rigid material, such as an energy storage tank, and a second pressure sensor for detecting impact force is set on the backrest 3, and the valve 14 is a solenoid valve, and the valve 14 and the second pressure sensor are connected through the controller. In this way, when the pressure detected by the second pressure sensor reaches a set value, the controller controls the valve 14 to open, so that the pressurized gas in the gas storage container flows into the first airbag 11.

[0060] In addition, the prior art also provides some solutions to improve the protective performance of headrests, such as thickening the seat headrest foam, increasing the headrest inclination angle, active mechanical trigger headrest, active airbag headrest, etc. Among them, although thickening the headrest foam or increasing the headrest inclination angle can effectively reduce the gap between the head and the headrest, it will reduce the comfort of the headrest and the aesthetics of the seat; the active mechanical trigger headrest is generally more lagging, and requires continuous testing, optimization and adjustment; the active airbag headrest uses an electronic collision unit to promptly detonate the headrest airbag at the moment of a rear-end collision to provide support for the head, but it is expensive and disposable and cannot be reused. The most important disadvantage is that the rear-end collision speeds of each vehicle are different, and the corresponding body acceleration changes are also different. In ECU calibration, it is difficult to calibrate the detonation time for each speed. If the airbag deployment time is not appropriate, the airbag may impact the head and be counterproductive. The solution provided in this application is that the headrest can actively reduce the gap value with the driver and passengers. It is low-cost and does not affect the comfort and aesthetics of the seat. At the same time, it improves the whipping performance of the car seat in protecting the driver and passengers' heads, making up for the shortcomings of the above existing solutions. It is more applicable and can be used as a universal product in various vehicle seats.

[0061] Based on the above-mentioned seat, the embodiment of the present application further provides a vehicle, which includes a vehicle body and the above-mentioned seat. Since the vehicle has the above-mentioned seat, the beneficial effects of the vehicle brought by the seat can be found in the above content, which will not be repeated here.

[0062] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0063] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0064] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0065] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0066] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to more clearly explain the technical solutions and cannot be used to limit the scope of protection of the present application.

[0067] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A seat, characterized in that: The invention comprises a headrest (2), a backrest (3) and a buffer device (1); the buffer device (1) comprises: A first airbag (11) is arranged in the headrest (2); An air storage container, capable of being in communication with the first air bag (11) via an air path (13); A valve (14) is arranged in the gas path (13); When the backrest (3) is subjected to impact force, the valve (14) can be triggered, and the valve (14) can open the air path (13) so that the air storage container can inflate the first airbag (11).

2. The seat according to claim 1, characterized in that: The gas storage container is a second airbag (12) arranged in the backrest (3); the second airbag (12) can be squeezed due to the impact force; when the internal air pressure of the second airbag (12) is less than a preset pressure, the valve (14) blocks the air path (13); when the internal air pressure of the second airbag (12) reaches the preset pressure, the valve (14) opens the air path (13) to inflate the first airbag (11).

3. The seat according to claim 2, characterized in that: The second airbag (12) is provided with a first pressure sensor (15) for sensing the internal air pressure of the second airbag (12), and the valve (14) is a solenoid valve and is communicatively connected with the first pressure sensor (15).

4. The seat according to claim 2, characterized in that: The valve (14) is a one-way valve.

5. The seat according to claim 3, characterized in that: The solenoid valve is a two-position three-way solenoid valve and comprises a first interface (141), a second interface (142) and a third interface (143), the first interface (141) being in communication with the first airbag (11), the second interface (142) being in communication with the second airbag (12), and the third interface (143) being in communication with the external environment; When the internal air pressure of the second airbag (12) is lower than the preset pressure, the first interface (141) and the third interface (143) are connected to each other so as to deflate the first airbag (11); When the internal air pressure of the second airbag (12) reaches the preset pressure, the first interface (141) and the second interface (142) are connected to inflate the first airbag (11).

6. The seat according to any one of claims 1 to 5, characterized in that: The first air bag (11) is provided with an air leakage hole, and the effective flow area of ​​the air path (13) is larger than the effective flow area of ​​the air leakage hole.

7. The seat according to claim 1, characterized in that: The buffer device (1) further comprises an air pump (16) connected to the air storage container, and the air pump (16) is capable of inflating the air storage container.

8. The seat according to claim 1, characterized in that: The first airbag (11) comprises a front side and a back side, the back side is connected to and shaped with a headrest back plate of the headrest (2), and the front side can expand and contract; And / or, the headrest (2) is provided with a buffer body (21) covering the first airbag (11).

9. The seat according to claim 2, characterized in that: The backrest (3) is provided with a receiving space and a backrest spring (31) is provided in the receiving space, a mounting back plate is provided at the center of the backrest spring (31), and the second airbag (12) is connected to the mounting back plate and is suspended in the receiving space.

10. A vehicle, characterized in that: The invention comprises a vehicle body and a seat as claimed in any one of claims 1 to 9.

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