Constant-pressure air storage device for automobile seat pneumatic system and automobile seat pneumatic system

Abstract

A constant-pressure air storage device for an automobile seat pneumatic system and an automobile seat pneumatic system, the constant-pressure air storage device comprising: a constant-pressure assembly (3), the constant-pressure assembly comprising a housing (5), an air storage bladder (6), and an elastic compression device. The air storage bladder is in communication with an automobile seat pneumatic system by means of an air tube, and when the internal air pressure of the automobile seat pneumatic system rises, the elastic compression device is pressed by the air storage bladder to store elastic force; when the internal air pressure of the automobile seat pneumatic system drops, the elastic compression device releases the elastic force to press the air storage bladder, so that air is discharged from the air storage bladder into the automobile seat pneumatic system to supplement air to the automobile seat pneumatic system. In this way, during inflation of an air bag, the constant-pressure assembly can be used to supplement air pressure to an air pump, ensuring that the air bag is inflated at a constant inflation rate, and finally allowing the air bag to be fully filled.

Description

A constant pressure air storage device for automotive seat pneumatic systems and an automotive seat pneumatic system

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202423275958X, filed on December 30, 2024, entitled "A constant pressure air storage device for an automotive seat pneumatic system and an automotive seat pneumatic system", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure generally relates to the field of pneumatic structure technology, and specifically to a constant pressure air storage device for an automotive seat pneumatic system and an automotive seat pneumatic system. Background Technology

[0004] Many existing car seats have massage functions, which are achieved by repeatedly inflating and deflating airbags installed on the seat. Therefore, existing technology designs an air circuit controller to control the inflation and deflation of the airbags. The working process involves continuous inflation via an air pump, and the air circuit controller controls whether each airbag is connected to the air pump to achieve inflation or deflation.

[0005] However, in existing technologies, air bags are inflated using only an air pump. If the air pump's inflation pressure is fixed, the internal pressure of the air bag increases as gas is added. This reduces the pressure difference between the air bag and the air pump, slows down the gas flow rate, and significantly decreases the inflation rate of the air bag.

[0006] During the inflation process, due to the above-mentioned situations, the air bag often inflates slowly or is difficult to fill completely. Summary of the Invention

[0007] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a constant pressure air storage device for automotive seat pneumatic systems and an automotive seat pneumatic system.

[0008] On one hand, this disclosure provides a constant pressure air storage device for an automotive seat pneumatic system, including a constant pressure component; the constant pressure component includes:

[0009] A housing, the interior of which has an installation space;

[0010] An air reservoir is disposed within the installation space and is connected to the pneumatic system of the car seat via an air tube.

[0011] An elastic compression device is installed within the installation space and abuts against the outer surface of the air reservoir.

[0012] When the internal air pressure of the car seat pneumatic system increases, the elastic compression device is squeezed by the air reservoir to store elastic force; when the internal air pressure of the car seat pneumatic system decreases, the elastic compression device releases elastic force to squeeze the air reservoir, so that gas is discharged from the air reservoir into the car seat pneumatic system to replenish the air in the car seat pneumatic system.

[0013] According to the technical solution provided in this disclosure, the elastic compression device includes:

[0014] An abutment plate is movably installed within the installation space, with one side surface abutting against the air reservoir.

[0015] An elastic element is disposed on the side of the abutment plate away from the air reservoir, and abuts against the inner wall of the housing and the other side surface of the abutment plate, respectively.

[0016] According to the technical solution provided in this disclosure, the elastic element includes: at least one spring; one end of the spring abuts against the abutment plate, and the other end abuts against the inner sidewall of the housing.

[0017] According to the technical solution provided in this disclosure, the surface of the abutment plate away from the air storage bag has a limiting protrusion; one end of the spring is engaged in the limiting protrusion.

[0018] According to the technical solution provided in this disclosure, the limiting protrusion includes: an annular protrusion and a cross protrusion;

[0019] The annular protrusion has a limiting space inside, and the cross protrusion is located within the limiting space; the end of the spring is disposed within the limiting space and is engaged with the cross protrusion.

[0020] According to the technical solution provided in this disclosure, a plurality of springs are evenly distributed along the surface of the abutment plate.

[0021] According to the technical solution provided in this disclosure, the elastic element includes: a sponge; the sponge abuts against the abutment plate and the inner sidewall of the shell respectively.

[0022] According to the technical solution provided in this disclosure, the housing is provided with a plurality of through holes;

[0023] When the constant pressure component switches between the expansion state and the venting state, the gas in the installation space communicates with the outside gas through the through hole.

[0024] According to the technical solution provided in this disclosure, a through groove is formed on the outer surface of the housing, and the through groove communicates with the through hole.

[0025] On the other hand, this disclosure provides a pneumatic system for an automotive seat with constant air pressure, including: an air circuit controller and an air pump;

[0026] The air circuit controller, air pump, and constant pressure air storage device for a pneumatic system for an automotive seat as described above are interconnected via air pipes.

[0027] At least one gas-using component is connected to the gas circuit controller; the gas circuit controller is configured to control the gas-using component to be filled or defilled; the gas pump is configured to supply gas to the gas-using component and the constant pressure gas storage structure.

[0028] The beneficial effects of this disclosure are as follows:

[0029] The constant pressure assembly includes a housing, an air reservoir, and an elastic compression device. The air reservoir is connected to the car seat pneumatic system via an air tube. When the internal air pressure of the car seat pneumatic system increases, the elastic compression device is compressed by the air reservoir to store elastic force. When the internal air pressure of the car seat pneumatic system decreases, the elastic compression device releases its elastic force to compress the air reservoir, causing gas to be discharged from the air reservoir into the car seat pneumatic system to replenish the system's air pressure. This method allows the constant pressure assembly to supplement the air pump during airbag inflation, ensuring a constant inflation rate and ultimately allowing the airbag to be fully inflated. Attached Figure Description

[0030] Other features, objects, and advantages of this disclosure will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0031] Figure 1 is a schematic diagram of the pneumatic system of a car seat;

[0032] Figure 2 is a schematic diagram of the constant pressure component in the first embodiment;

[0033] Figure 3 is a schematic diagram of the constant pressure component in the second embodiment;

[0034] Figure 4 is an exploded view of the constant pressure component in the first embodiment;

[0035] Figure 5 is a magnified view of a portion of Figure 4;

[0036] Figure 6 is a schematic diagram of the elastic compression device storing elastic force;

[0037] Figure 7 is a schematic diagram of the elastic compression device releasing its elastic force.

[0038] The components include: 1. Gas circuit controller; 2. Gas supply component; 3. Constant pressure component; 4. Air pump; 5. Housing; 6. Air reservoir; 7. Abutment plate; 8. Elastic component; 9. Limiting protrusion; 10. Annular protrusion; 11. Cross protrusion; 12. Through hole; 13. Through groove; 14. Waist-shaped hole. Detailed Implementation

[0039] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant disclosure and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the disclosure are shown in the accompanying drawings.

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other. This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] This disclosure proposes a constant pressure air storage device for use in an automotive seat pneumatic system to replenish the air supply to the system.

[0042] Please refer to Figures 1 and 4. On one hand, this disclosure provides a constant pressure air storage device for an automotive seat pneumatic system, comprising: a constant pressure component 3; the constant pressure component 3 includes:

[0043] Housing 5, the housing 5 having an installation space inside;

[0044] An air reservoir 6 is disposed within the installation space and is connected to the pneumatic system of the car seat via an air tube;

[0045] An elastic compression device is installed in the installation space and abuts against the outer surface of the air storage bag 6;

[0046] When the internal air pressure of the car seat pneumatic system increases, the elastic compression device is squeezed by the air reservoir 6 to store elastic force; when the internal air pressure of the car seat pneumatic system decreases, the elastic compression device releases elastic force to squeeze the air reservoir 6, so that gas is discharged from the air reservoir 6 into the car seat pneumatic system to replenish the air in the car seat pneumatic system.

[0047] On the other hand, this disclosure provides an automotive seat pneumatic system including:

[0048] An air circuit controller 1 is connected to multiple air bags 2; the air circuit controller 1 is configured to control the air bags 2 to inflate or deflate.

[0049] When the constant pressure component 3 is in an expanded state, it is filled with gas; when it is in a deflated state, the constant pressure component 3 discharges gas, and the gas is input into the gas bag 2 through the gas circuit controller 1.

[0050] Air pump 4 is connected to constant pressure component 3 and air circuit controller 1.

[0051] It is understood that the working process of this embodiment includes:

[0052] When the air bag 2 needs to switch from the self-inflating state to the deflation state, the air circuit controller 1 cuts off the connection between the air bag 2 and the air pump 4 and the constant pressure component 3. At this time, the gas from the air pump 4 fills the constant pressure component 3, and the constant pressure component 3 switches from the deflation state to the expansion state.

[0053] When the air bag 2 needs to switch from the self-deflating state to the inflating state, the air circuit controller 1 connects the air bag 2, the air pump 4 and the constant pressure component 3, and the air pump 4 and the constant pressure component 3 simultaneously inflate the air bag 2.

[0054] This method allows the constant pressure component 3 to supplement the air pressure of the air pump 4 during the inflation process of the air bag 2, ensuring that the air bag 2 is inflated at a constant inflation rate, so that the air bag 2 can be fully filled in the end.

[0055] In this embodiment, the gas pumped by the air pump 4 is stored in the air reservoir 6 when the air circuit controller 1 disconnects the air bag 2 from the air pump 4 and the constant pressure component 3; and when the air circuit controller 1 connects the air bag 2 to the air pump 4 and the constant pressure component 3, the gas in the air reservoir 6 is discharged using an elastic compression device. Thus, the discharged gas and the gas supplied by the air pump 4 are combined to fill the air bag 2, increasing the inflation rate.

[0056] Optionally, the elastic compression device includes:

[0057] The abutment plate 7 is movably installed in the installation space, with one side surface abutting against the air reservoir 6;

[0058] The elastic element 8 is disposed on the side of the abutment plate 7 away from the air storage bladder 6, and abuts against the inner wall of the housing 5 and the other side surface of the abutment plate 7 respectively.

[0059] Specifically, if the air reservoir 6 deflates slowly, it will be difficult to provide sufficient air pressure to the air pump 4, thus making it difficult to significantly increase the inflation rate.

[0060] In this embodiment, the elastic compression device uses the abutment plate 7 to compress the air storage bag 6, which allows the air storage bag 6 to expel gas more quickly and replenish the air pump 4 with sufficient air pressure.

[0061] Optionally, referring to FIG2, the elastic element 8 includes: at least one spring; one end of the spring abuts against the abutment plate 7, and the other end abuts against the inner sidewall of the housing 5.

[0062] Optionally, referring to Figure 5, the surface of the abutment plate 7 away from the air reservoir 6 has a limiting protrusion 9; one end of the spring is engaged in the limiting protrusion 9.

[0063] Specifically, by using the limiting protrusion 9 to limit the spring, the position of the spring and the abutment plate 7 can be prevented from shifting, which would reduce the force of the abutment plate 7 on the air reservoir 6, and thus result in insufficient pressure of the gas discharged from the air reservoir 6.

[0064] Optionally, the limiting protrusion 9 includes: an annular protrusion 10 and a cross protrusion 11;

[0065] The annular protrusion 10 has a limiting space inside, and the cross protrusion 11 is located within the limiting space; the end of the spring is set within the limiting space and is locked onto the cross protrusion 11.

[0066] Optionally, multiple springs are evenly distributed along the surface of the abutment plate 7.

[0067] Specifically, by using multiple springs evenly arranged between the abutment plate 7 and the housing 5, the abutment plate 7 can be prevented from tilting, ensuring that the air storage bladder 6 discharges gas evenly, thereby achieving a constant pressure effect.

[0068] Optionally, referring to Figure 3, the elastic element 8 includes a sponge; the sponge abuts against the inner sidewalls of the abutment plate 7 and the housing 5 respectively.

[0069] Specifically, by using a sponge to apply pressure to the abutment plate 7, the sponge can absorb the sound when the air reservoir 6 repeatedly switches between the expansion and deflation states, thus reducing noise.

[0070] Optionally, the housing 5 is provided with a plurality of through holes 12;

[0071] When the constant pressure component 3 switches between the expansion state and the venting state, the gas in the installation space is connected to the outside gas through the through hole 12.

[0072] Optionally, a through groove 13 is provided on the outer surface of the housing 5, and the through groove 13 communicates with the through hole 12.

[0073] Specifically, the through hole 12 connects the installation space with the outside world, which can balance the pressure between the installation space and the outside world when the air bladder 6 repeatedly switches between the expansion and deflation states, avoid the abutment plate 7 being affected by the air pressure inside the shell 5, and enable the abutment plate 7 to provide sufficient force for the air bladder 6.

[0074] A through slot 13 is opened on the outside of the housing 5 so that the installation space can still be connected to the outside when the housing 5 is in contact with other objects. This balances the pressure between the installation space and the outside, and prevents the through hole 12 from being blocked by other objects, which would cause the contact plate 7 to be affected by the air pressure in the installation space and reduce the force on the air storage bag 6.

[0075] Optionally, a waist-shaped hole 14 is provided on the outer surface of the housing 5; the air pipe connecting the air reservoir 6 and the pneumatic system of the car seat passes through the waist-shaped hole 14.

[0076] Specifically, during the collision, the air tube connected to the air bladder 6 will also be displaced. Therefore, the waist-shaped hole 14 is provided and the air tube passes through the waist-shaped hole 14 to avoid unnecessary interaction between the air tube and the shell 5 after the air tube is displaced, which would cause the air tube to close.

[0077] Furthermore, this disclosure also provides a pneumatic system for an automotive seat with constant air pressure, including: an air circuit controller 1 and an air pump 4;

[0078] The air circuit controller 1, the air pump 4, and the constant pressure air storage device for a pneumatic system of an automobile seat, as described above, are interconnected by air pipes.

[0079] At least one gas-using component 2 is connected to the gas circuit controller 1; the gas circuit controller 1 is configured to control the gas-using component 2 to be filled or released; the gas pump 4 is configured to supply gas to the gas-using component 2 and the constant pressure gas storage structure.

[0080] Specifically, the air component 2 is one or more of the following: lumbar support air bag, leg support air bag, seat massage air bag, or active side wing air bag.

[0081] Referring to Figure 6, the arrows indicate the direction of gas movement.

[0082] Understandably, when the air circuit controller 1 stops the air-using components from inflating, the air pump 4 will still inject gas into the system, increasing the air pressure in the car seat pneumatic system. Due to the pressure difference, the gas in the system flows into the air bladder 6 of the constant pressure air storage device for storage. As the air pressure increases due to the inflow of gas, the volume of the air bladder 6 increases to balance the air pressure inside the entire system. At the same time, the increased volume of the air bladder 6 will squeeze the elastic compression device, causing the elastic compression device to store elastic force.

[0083] Referring to Figure 7, the black arrows indicate the direction of gas movement originating from the air pump 4; the white arrows indicate the direction of gas movement originating from the air reservoir 6.

[0084] Understandably, when the air circuit controller 1 controls the air component 2 to inflate, the gas in the car seat pneumatic system will fill the air bag, causing the air pressure in the system to decrease. At this time, the elastic compression device will release its elasticity, squeeze the air storage bag 6 to expel the gas, and further replenish the system with air to accelerate the inflation speed of the air bag. It can be seen that whether the air bag is in the inflation state or in the non-inflation state, the constant pressure air storage device can keep the internal air pressure of the entire car seat pneumatic system in a dynamic balance process.

[0085] In summary, this disclosure proposes a constant-pressure air storage device and a pneumatic system for automotive seats. The constant-pressure component 3 includes a housing 5, an air reservoir 6, and an elastic compression device. The air reservoir 6 is connected to the automotive seat pneumatic system via an air tube. When the internal air pressure of the automotive seat pneumatic system increases, the elastic compression device is compressed by the air reservoir 6 to store elastic force. When the internal air pressure of the automotive seat pneumatic system decreases, the elastic compression device releases its elastic force to compress the air reservoir 6, causing gas to be discharged from the air reservoir 6 into the automotive seat pneumatic system to replenish the system's air supply. This method allows the constant-pressure component 3 to supplement the air pump during the airbag inflation process, ensuring that the airbag is inflated at a constant inflation rate, ultimately allowing the airbag to be fully inflated.

[0086] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions. Industrial applicability

[0087] This disclosure proposes a constant pressure air storage device and a pneumatic system for automotive seats. During the inflation process of the air bag, the constant pressure component supplements the air pump with air pressure to ensure that the air bag is inflated at a constant inflation rate, so that the air bag can be fully filled.

Claims

1. A constant pressure air storage device for a pneumatic system of an automobile seat, characterized in that, Including constant voltage components (3); The constant pressure component (3) includes: The housing (5) has an installation space inside; An air reservoir (6) is disposed within the installation space and is connected to the pneumatic system of the car seat via an air tube; An elastic compression device is installed in the installation space and abuts against the outer surface of the air storage bag (6); When the internal air pressure of the car seat pneumatic system increases, the elastic compression device is squeezed by the air reservoir (6) to store elastic force; when the internal air pressure of the car seat pneumatic system decreases, the elastic compression device releases elastic force to squeeze the air reservoir (6) so that gas is discharged from the air reservoir (6) into the car seat pneumatic system to replenish the air in the car seat pneumatic system.

2. A constant pressure air storage device for an automotive seat pneumatic system according to claim 1, characterized in that, The elastic compression device includes: Abutting plate (7) is movably installed in the installation space, with one side surface abutting against the air storage bag (6); An elastic element (8) is disposed on the side of the abutment plate (7) away from the air reservoir (6) and abuts against the inner wall of the housing (5) and the other side surface of the abutment plate (7), respectively.

3. A constant pressure air storage device for an automotive seat pneumatic system according to claim 2, characterized in that, The elastic element (8) includes at least one spring; one end of the spring abuts against the abutment plate (7), and the other end abuts against the inner wall of the housing (5).

4. A constant pressure air storage device for an automotive seat pneumatic system according to claim 3, characterized in that, The surface of the abutment plate (7) away from the air reservoir (6) has a limiting protrusion (9); one end of the spring is engaged in the limiting protrusion (9).

5. A constant pressure air storage device for an automotive seat pneumatic system according to claim 4, characterized in that, The limiting protrusion (9) includes: an annular protrusion (10) and a cross protrusion (11); The annular protrusion (10) has a limiting space inside, and the cross protrusion (11) is located in the limiting space; the end of the spring is disposed in the limiting space and is engaged on the cross protrusion (11).

6. A constant pressure air storage device for an automotive seat pneumatic system according to any one of claims 3-5, characterized in that, The multiple springs are evenly distributed along the surface of the abutment plate (7).

7. A constant pressure air storage device for an automotive seat pneumatic system according to any one of claims 2-6, characterized in that, The elastic element (8) includes a sponge; the sponge abuts against the inner sidewalls of the abutment plate (7) and the housing (5).

8. A constant pressure air storage device for an automotive seat pneumatic system according to any one of claims 1-7, characterized in that, The housing (5) has multiple through holes (12); When the constant pressure component (3) switches between the expansion state and the venting state, the gas in the installation space is connected to the outside gas through the through hole (12).

9. A constant pressure air storage device for an automotive seat pneumatic system according to claim 8, characterized in that, A through groove (13) is provided on the outer surface of the housing (5), and the through groove (13) is connected to the through hole (12).

10. A constant pressure air storage device for an automotive seat pneumatic system according to any one of claims 1-9, characterized in that, A waist-shaped hole (14) is provided on the outer surface of the housing (5); the air pipe connecting the air storage bag (6) and the pneumatic system of the car seat passes through the waist-shaped hole (14).

11. A pneumatic system for a car seat with constant air pressure, characterized in that, include: Air circuit controller (1) and air pump (4); The air circuit controller (1), air pump (4), and constant pressure air storage device for automotive seat pneumatic system as described in any one of claims 1-10 are interconnected by air pipes. At least one gas-using component (2) is connected to the gas circuit controller (1); the gas circuit controller (1) is configured to control the gas-using component (2) to be filled or defilled; the gas pump (4) is configured to supply gas to the gas-using component (2) and the constant pressure gas storage structure.

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