Air pressure adjusting system and method for vehicle seat

Abstract

The invention discloses an air pressure adjusting system and method for a vehicle seat, the air pressure adjusting system comprises an air bag, an air pipeline and a pressure adjusting piece, the air bag is communicated with the air pipeline through the pressure adjusting piece, the pressure adjusting piece comprises a first functional cavity, and the first functional cavity comprises a first air inlet and a first air outlet; gas in the gas pipeline can enter the first functional cavity through the first gas inlet, the first functional cavity communicates with the first gas outlet through the connecting cavity, a control piece is arranged in the first functional cavity and used for adjusting the pressure of the gas entering the connecting cavity, and when the pressure of the gas at the first gas inlet is larger than a first preset pressure value, the first functional cavity is opened. The control part adjusts the communication area of the first functional cavity and the connecting cavity so as to adjust the amount of gas entering the connecting cavity in unit time, and when the gas pressure at the first gas inlet is larger than a second preset value, the control part adjusts the communication area of the first functional cavity and the connecting cavity so that the first functional cavity and the connecting cavity can not communicate. And the seat use experience of a user can be improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle seat technology, and in particular to a vehicle seat air pressure regulation system and method. Background Technology

[0002] Seats are one of the most important components for ensuring vehicle comfort. To enhance the driving and riding experience, more and more vehicles are integrating airbag structures. By inflating or contracting the airbags, the shape of the seat back and / or cushion can be changed, thereby making the seat conform to and support the user's body to reduce user fatigue. Through the changes in the expansion and contraction of the airbags, the airbags can push the seat surface on the inside of the seat, thereby achieving a massage effect on the user.

[0003] During the use of airbags, an air pump is usually used to pressurize air into the gas pipeline. The pressurized gas enters the airbag to inflate it. The air compressed directly by the air pump usually has a large pressure. If it enters the airbag directly, it may cause the airbag to inflate too quickly, causing a large impact on the user and potentially causing physical discomfort, thus affecting the user experience. Therefore, it is necessary to adjust the pressure of the gas entering the airbag. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an air pressure regulation system and method for a vehicle seat, which can regulate the pressure of the gas before it enters the airbag, so as to avoid excessive air pressure inside the airbag and thus ensure the user's seat experience.

[0005] This invention provides a vehicle seat air pressure regulation system, including an airbag, a gas pipeline, and a pressure regulating component. The airbag and the gas pipeline are connected via the pressure regulating component. The pressure regulating component includes a first functional chamber, which has a first gas inlet and a first gas outlet. Gas in the gas pipeline can enter the first functional chamber through the first gas inlet. The first functional chamber and the first gas outlet are connected via a connecting chamber. A control component is provided in the first functional chamber for regulating the gas pressure entering the connecting chamber. When the gas pressure at the first gas inlet is greater than the first preset pressure value, the control component adjusts the communication area between the first functional cavity and the connecting cavity to adjust the amount of gas entering the connecting cavity per unit time. When the gas pressure at the first gas inlet is greater than the second preset value, the control component adjusts the communication area between the first functional cavity and the connecting cavity to prevent the first functional cavity and the connecting cavity from communicating.

[0006] In one embodiment, a second functional cavity is further included, the second functional cavity including a second gas outlet. When there is no gas input at the first gas inlet, and / or when the gas pressure at the first gas outlet is greater than a third preset pressure value, the first functional cavity and the second functional cavity are connected, and the gas in the connecting cavity can enter the second functional cavity and be discharged through the second gas outlet.

[0007] In one embodiment, the control element includes a seal and a first elastic element. The seal is movably installed in the first functional cavity via the first elastic element. When gas is introduced at the first gas inlet, the seal moves towards the side closer to the connecting cavity under the action of the gas to adjust the communication area between the first functional cavity and the connecting cavity. When the gas pressure at the first gas inlet is greater than a second preset pressure value, the seal seals the connecting cavity, so that the first functional cavity and the connecting cavity are not in communication.

[0008] In one embodiment, the second functional cavity is provided with a piston, a second elastic member, and an abutment member. The piston is movably installed in the second functional cavity via the second elastic member. The abutment member is connected to the end of the piston away from the second elastic member. One side of the abutment member is installed in the connecting cavity and can contact the control member. An exhaust channel is provided on the abutment member, which is used to connect the connecting cavity and the second functional cavity.

[0009] In one embodiment, when there is no gas input at the first gas inlet and / or the gas pressure at the first gas outlet is greater than a third preset pressure value, the abutment separates from the control element, the exhaust passage connects the connecting cavity and the second functional cavity, and the gas in the connecting cavity can enter the second functional cavity and be discharged through the second gas outlet.

[0010] A method for regulating the air pressure of a vehicle seat, applied to the aforementioned vehicle seat air pressure regulation system, includes the following steps: Gas pressure regulation steps: Based on the fact that the gas pressure value at the first gas inlet is greater than the first preset value, the control unit reduces the communication area between the first functional cavity and the connecting cavity, thereby reducing the pressure of the gas entering the connecting cavity. After regulation, the gas with reduced pressure enters the airbag through the first gas outlet.

[0011] In one embodiment, a gas blocking step is included: based on the gas pressure at the first gas inlet being greater than a second preset value, the control unit adjusts the communication area between the first functional cavity and the connecting cavity so that the first functional cavity and the connecting cavity are not connected.

[0012] In one embodiment, the gas barrier step further includes: Because the gas pressure at the first gas inlet is greater than the second preset value, the sealing element moves towards the side closer to the connecting cavity under the action of the gas at the first gas inlet, sealing the connecting cavity and preventing the first functional cavity from communicating with the connecting cavity.

[0013] In one embodiment, the process includes an exhaust step: based on the absence of gas input at the first gas inlet and / or based on the gas pressure at the first gas outlet being greater than a third preset pressure value, the first functional chamber and the second functional chamber of the pressure regulating member are connected, allowing gas in the connecting chamber to enter the second functional chamber and be discharged through the second gas outlet.

[0014] In one embodiment, the exhaust step further includes: Based on the absence of gas input at the first gas inlet and / or based on the gas pressure at the first gas outlet being greater than the third preset pressure value, the gas in the connecting cavity acts on the seal and / or the abutment, causing the seal and the abutment to separate, and the exhaust passage connects the first functional cavity and the second functional cavity.

[0015] The beneficial effects of this invention are as follows: The pressure regulating component helps to adjust the gas pressure in the gas pipeline, effectively preventing excessively pressurized gas from entering the airbag and causing it to expand too quickly, thus avoiding a significant impact on the user. This helps ensure a better user experience and extends the lifespan of the airbag. The control component also helps to regulate the gas pressure and, in conjunction with the connecting cavity, reduces gas pressure. Furthermore, it adjusts the connection between the first gas inlet and the first gas outlet based on the gas pressure at the first gas inlet, preventing excessive pressure at the first gas inlet from damaging the pressure regulating component and the airbag. This improves safety and enhances the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a pressure regulating system according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the air pressure regulation system of an embodiment of the present invention during exhaust.

[0019] Figure 3 This is a schematic flowchart of a pressure regulation method according to an embodiment of the present invention.

[0020] In the picture: 10-First functional chamber; 11-First gas inlet; 12-First gas outlet; 20-Second functional chamber; 21-Second gas outlet; 30-Connecting chamber; 40-Control component; 41-Seal component; 42-First elastic component; 51-Piston component; 52-Second elastic component; 53-Abutting component; 531-Exhaust passage. Detailed Implementation

[0021] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. Based on the description of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0022] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0023] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0024] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0025] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0026] Seats are one of the most important components for ensuring vehicle comfort. To enhance the driving and riding experience, more and more vehicles are integrating airbag structures. By inflating or contracting the airbags, the shape of the seat back and / or cushion can be changed, thereby making the seat conform to and support the user's body to reduce user fatigue. Through the changes in the expansion and contraction of the airbags, the airbags can push the seat surface on the inside of the seat, thereby achieving a massage effect on the user.

[0027] During the use of airbags, an air pump is usually used to pressurize air into the gas pipeline. The pressurized gas enters the airbag to inflate it. The air compressed directly by the air pump usually has a large pressure. If it enters the airbag directly, it may cause the airbag to inflate too quickly, causing a large impact on the user and potentially causing physical discomfort, thus affecting the user experience. Therefore, it is necessary to adjust the pressure of the gas entering the airbag.

[0028] This invention proposes an air pressure regulation system for a vehicle seat, including a connected airbag (not shown in the figure), a gas pipeline (not shown in the figure), and a pressure regulating component. The airbag and the gas pipeline are connected through the pressure regulating component, which is located on the gas inlet side of the airbag. Figure 1 As shown, the pressure regulating component includes a first functional chamber 10, which includes a first gas inlet 11 and a first gas outlet 12. The first gas inlet 11 is connected to the side of the gas pipeline away from the airbag, and the first gas outlet 12 is connected to the inlet side of the airbag. Gas in the gas pipeline can enter the first functional chamber 10 through the first gas inlet 11 and enter the airbag through the first gas outlet 12. The first gas inlet 11 and the first gas outlet 12 are connected through a connecting chamber 30. A control component 40 is provided in the first functional chamber 10. The control component 40 is used to adjust the gas pressure entering the connecting chamber 30 so that the gas pressure discharged through the connecting chamber 30 and the first gas outlet 12 can meet the needs of the airbag.

[0029] When the gas pressure at the first gas inlet 11 is greater than the first preset pressure value, the control component 40 adjusts the communication area between the first functional cavity 10 and the connecting cavity 30, thereby adjusting the amount of gas entering the connecting cavity 30 per unit time to achieve gas pressure regulation. When the gas pressure at the first gas inlet 11 is greater than the second preset pressure value, the control component 40 adjusts the communication area between the first functional cavity 10 and the connecting cavity 30, so that the first functional cavity 10 and the connecting cavity 30 are not connected, that is, the first gas inlet 11 and the first gas outlet 12 are not connected, and the gas cannot enter the airbag through the pressure regulating component.

[0030] The pressure regulating component helps to adjust the gas pressure in the gas pipeline, effectively preventing excessively pressurized gas from entering the airbag and causing it to expand too quickly, thus avoiding a significant impact on the user. This helps ensure a better user experience and extends the lifespan of the airbag. The control component 40 helps to regulate the gas pressure and works with the connecting cavity 30 to reduce gas pressure. It also adjusts the connection between the first gas inlet 11 and the first gas outlet 12 based on the gas pressure at the first gas inlet 11, preventing excessive gas pressure at the first gas inlet 11 from damaging the pressure regulating component and the airbag. This improves safety and enhances the user experience.

[0031] In an example scheme, such as Figure 1 As shown, the pressure regulating component also includes a second functional chamber 20, which is selectively connected to the first functional chamber 10. The second functional chamber 20 includes a second gas outlet 21, and the directions of the second gas outlet 21 and the first gas outlet 12 are configured to be different. When there is no gas input at the first gas inlet 11, and / or when the gas pressure at the first gas outlet 12 is greater than a third preset pressure value, the first functional chamber 10 and the second functional chamber 20 are connected, that is, the first gas outlet 12 and the second gas outlet 21 are connected, and the gas in the connecting chamber 30 can enter the second functional chamber 20 and be discharged through the second gas outlet 21.

[0032] In an example scheme, such as Figure 1 As shown, the opening size of the first functional cavity 10 is configured to be larger than the opening size of the connecting cavity 30, and the opening size of the second functional cavity 20 is configured to be larger than the opening size of the first functional cavity 10.

[0033] In one example scheme, combined Figure 1 and Figure 2 The control component 40 includes a sealing component 41 and a first elastic component 42. The sealing component 41 is movably installed in the first functional cavity 10 through the first elastic component 42. When gas enters through the first gas inlet 11, the gas exerts a force on the sealing component 41, causing the sealing component 41 to move towards the side closer to the connecting cavity 30 within the first functional cavity 10 under the action of the gas. This adjusts the communication area between the first functional cavity 10 and the connecting cavity 30, thereby adjusting the amount of gas entering the connecting cavity 30 per unit time. Since the gas needs to overcome the elastic force of the first elastic component 42, the energy will be weakened, thereby reducing the gas pressure.

[0034] When the gas pressure at the first gas inlet 11 is greater than the second preset pressure value, the gas will push the sealing member 41 to move to seal the connection between the connecting cavity 30 and the first functional cavity 10, so that the gas cannot pass through, thereby making the first functional cavity 10 and the connecting cavity 30 disconnected, that is, the first gas inlet 11 and the first gas outlet 12 disconnected, and the gas cannot enter the airbag through the pressure regulating member.

[0035] For example, the second preset pressure value is determined by the initial distance between the seal 41 and the connecting cavity 30, and the elastic deformation force of the first elastic member 42.

[0036] For example, the first functional cavity 10 includes a plurality of first gas inlets 11 and a plurality of first gas outlets 12, one side of the seal 41 is installed in one of the first gas inlets 11, and the other side of the seal 41 is accommodated in the first functional cavity 10.

[0037] In an example scheme, such as Figure 2 As shown, the second functional cavity 20 is provided with a piston 51, a second elastic member 52 and an abutment member 53. The piston 51 is movably installed in the second functional cavity 20 through the second elastic member 52. The abutment member 53 is connected to the end of the piston 51 away from the second elastic member 52. One side of the abutment member 53 is installed in the connecting cavity 30 and contacts the control member 40, or more specifically, the sealing member 41. An exhaust passage 531 is provided on the abutment member 53, which is used to connect the connecting cavity 30 and the second functional cavity 20.

[0038] When there is no gas input at the first gas inlet 11, the seal 41 is reset under the elastic action of the first elastic member 42. The seal 41 moves away from the connecting cavity 30. At the same time, the gas remaining in the connecting cavity 30 will act on the seal 41, causing the seal 41 to separate from the abutment member 53, exposing the exhaust passage 531, connecting the connecting cavity 30 and the second functional cavity 20. The gas enters the second functional cavity 20 through the exhaust passage 531 and is discharged through the second gas outlet 21. And / or, when the gas pressure at the first gas outlet 12 is greater than the third preset pressure value, the gas enters the connecting cavity 30 and acts on the seal 41. The seal 41 moves away from the connecting cavity 30. At the same time, the gas remaining in the connecting cavity 30 acts on the abutment 53, causing the abutment 53 and the piston 51 to move away from the control element 40. The exhaust passage 531 is exposed, connecting the connecting cavity 30 and the second functional cavity 20. The gas enters the second functional cavity 20 through the exhaust passage 531 and is discharged through the second gas outlet 21.

[0039] When gas is introduced into the first gas inlet 11, that is, at the moment when the air pressure regulation system of the vehicle seat proposed in this invention is put into operation, the gas pressure on the side of the piston 51 and the abutment 53 near the first gas inlet 11 increases instantaneously, causing the abutment 53 to separate from the seal 41, that is, the abutment 53 and the seal 41 move away from each other, the exhaust passage 531 is exposed, and the gas is discharged through the second gas outlet 21. At the same time, the seal 41 and the abutment 53 are balanced by force. Subsequently, the abutment 53 is reset under the action of the second elastic member 52, and the abutment 53 contacts the seal 41, and the gas pressure regulation begins.

[0040] This invention proposes a method for adjusting the air pressure of a vehicle seat, specifically including the following steps: Gas pressure regulation steps: Based on the fact that the gas pressure value at the first gas inlet 11 is greater than the first preset value, the control component 40 reduces the communication area between the first functional cavity 10 and the connecting cavity 30, thereby reducing the pressure of the gas entering the connecting cavity 30. After regulation, the gas with reduced pressure enters the airbag through the first gas outlet 12.

[0041] In one example embodiment, the vehicle seat air pressure adjustment method proposed in this invention further includes: Pressure relief step: Gas is introduced from the first gas inlet 11. The abutment 53 and the seal 41 are separated under the action of the gas. The gas is discharged through the second gas outlet 21 until the seal 41 and the abutment 53 are in equilibrium and the abutment 53 and the seal 41 are in contact. The gas pressure regulation step begins.

[0042] In one example embodiment, the vehicle seat air pressure adjustment method proposed in this invention further includes: Gas blocking step: Based on the fact that the gas pressure at the first gas inlet 11 is greater than the second preset value, the control component 40 adjusts the communication area between the first functional cavity 10 and the connecting cavity 30 so that the first functional cavity 10 and the connecting cavity 30 are not connected.

[0043] Exemplarily, the gas barrier step further includes: Based on the fact that the gas pressure at the first gas inlet 11 is greater than the second preset value, the sealing member 41 moves towards the side closer to the connecting cavity 30 under the action of the gas at the first gas inlet 11 and seals the connecting cavity 30, so that the first functional cavity 10 and the connecting cavity 30 are not connected.

[0044] In one example embodiment, the vehicle seat air pressure adjustment method proposed in this invention further includes: Exhaust procedure: Based on the absence of gas input at the first gas inlet 11 and / or based on the gas pressure at the first gas outlet 12 being greater than the third preset pressure value, the first functional chamber 10 and the second functional chamber 20 of the pressure regulating component are connected, and the gas in the connecting chamber 30 can enter the second functional chamber 20 and be discharged through the second gas outlet 21.

[0045] For example, the exhaust step further includes: based on the absence of gas input at the first gas inlet 11 and / or based on the gas pressure at the first gas outlet 12 being greater than a third preset pressure value, the gas in the connecting cavity 30 acts on the seal 41 and / or the abutment 53, causing the seal 41 to separate from the abutment 53, exposing the exhaust passage 531, and connecting the connecting cavity 30 and the second functional cavity 20.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle seat air pressure regulation system, characterized in that, The device includes an airbag, a gas pipeline, and a pressure regulator. The airbag and the gas pipeline are connected through the pressure regulator. The pressure regulator includes a first functional chamber (10), which includes a first gas inlet (11) and a first gas outlet (12). Gas in the gas pipeline can enter the first functional chamber (10) through the first gas inlet (11). The first functional chamber (10) and the first gas outlet (12) are connected through a connecting chamber (30). A control element (40) is provided in the first functional chamber (10) to regulate the gas pressure entering the connecting chamber (30). When the gas pressure at the first gas inlet (11) is greater than the first preset pressure value, the control element (40) adjusts the communication area between the first functional cavity (10) and the connecting cavity (30) to adjust the amount of gas entering the connecting cavity (30) per unit time. When the gas pressure at the first gas inlet (11) is greater than the second preset value, the control element (40) adjusts the communication area between the first functional cavity (10) and the connecting cavity (30) to make the first functional cavity (10) and the connecting cavity (30) not communicate.

2. The air pressure regulating system for a vehicle seat according to claim 1, characterized in that, It also includes a second functional chamber (20), which includes a second gas outlet (21). When there is no gas input at the first gas inlet (11) and / or when the gas pressure at the first gas outlet (12) is greater than a third preset pressure value, the first functional chamber (10) and the second functional chamber (20) are connected, and the gas in the connecting chamber (30) can enter the second functional chamber (20) and be discharged through the second gas outlet (21).

3. The air pressure regulating system for a vehicle seat according to claim 1, characterized in that, The control component (40) includes a sealing component (41) and a first elastic component (42). The sealing component (41) is movably installed in the first functional cavity (10) through the first elastic component (42). When gas is introduced at the first gas inlet (11), the sealing component (41) moves towards the side closer to the connecting cavity (30) under the action of the gas to adjust the communication area between the first functional cavity (10) and the connecting cavity (30). When the gas pressure at the first gas inlet (11) is greater than the second preset pressure value, the sealing component (41) seals the connecting cavity (30) so that the first functional cavity (10) and the connecting cavity (30) are not connected.

4. The air pressure regulating system for a vehicle seat according to claim 2, characterized in that, The second functional cavity (20) is provided with a piston (51), a second elastic member (52) and an abutment (53). The piston (51) is movably installed in the second functional cavity (20) through the second elastic member (52). The abutment (53) is connected to the end of the piston (51) away from the second elastic member (52). One side of the abutment (53) is installed in the connecting cavity (30) and can contact the control member (40). An exhaust passage (531) is provided on the abutment (53). The exhaust passage (531) is used to connect the connecting cavity (30) and the second functional cavity (20).

5. The air pressure regulating system for a vehicle seat according to claim 4, characterized in that, When there is no gas input at the first gas inlet (11) and / or the gas pressure at the first gas outlet (12) is greater than the third preset pressure value, the abutment (53) separates from the control element (40), the exhaust channel (531) connects the connecting cavity (30) and the second functional cavity (20), and the gas in the connecting cavity (30) can enter the second functional cavity (20) and be discharged through the second gas outlet (21).

6. A method for adjusting the air pressure of a vehicle seat, characterized in that, An air pressure regulating system applied to a vehicle seat according to any one of claims 1 to 5, comprising the following steps: Gas pressure regulation steps: Based on the gas pressure value at the first gas inlet (11) being greater than the first preset value, the control unit (40) reduces the communication area between the first functional chamber (10) and the connecting chamber (30), thereby reducing the pressure of the gas entering the connecting chamber (30). After regulation, the gas with reduced pressure enters the airbag through the first gas outlet (12).

7. The air pressure adjustment method for a vehicle seat according to claim 6, characterized in that, The gas blocking step includes: based on the gas pressure at the first gas inlet (11) being greater than the second preset value, the control unit (40) adjusts the communication area between the first functional cavity (10) and the connecting cavity (30) so that the first functional cavity (10) and the connecting cavity (30) are not connected.

8. The air pressure adjustment method for a vehicle seat according to claim 7, characterized in that, The gas barrier step further includes: Based on the fact that the gas pressure at the first gas inlet (11) is greater than the second preset value, the sealing element (41) moves towards the side closer to the connecting cavity (30) under the action of the gas at the first gas inlet (11), sealing the connecting cavity (30) and making the first functional cavity (10) and the connecting cavity (30) not connected.

9. The air pressure adjustment method for a vehicle seat according to claim 6, characterized in that, The process includes the following steps: based on the absence of gas input at the first gas inlet (11) and / or based on the gas pressure at the first gas outlet (12) being greater than the third preset pressure value, the first functional chamber (10) and the second functional chamber (20) of the pressure regulating element are connected, and the gas in the connecting chamber (30) can enter the second functional chamber (20) and be discharged through the second gas outlet (21).

10. The air pressure adjustment method for a vehicle seat according to claim 9, characterized in that, The exhaust step also includes: Based on the absence of gas input at the first gas inlet (11) and / or based on the gas pressure at the first gas outlet (12) being greater than the third preset pressure value, the gas in the connecting cavity (30) acts on the seal (41) and / or the abutment (53), causing the seal (41) to separate from the abutment (53), and the exhaust channel (531) connects the first functional cavity (10) and the second functional cavity (20).

Images