A seat comfort adjustment device and an automotive seat

Abstract

The present application discloses a seat comfort adjustment device and an automotive seat. The device includes at least one soft inflatable bag that can be integrated into the seat; the soft inflatable bag is filled with a flexible filler; gas is filled into the soft inflatable bag; a height limiting structure for defining the local expansion height when the soft inflatable bag is inflated is provided inside the soft inflatable bag; a shock absorption mechanism is also connected to the soft inflatable bag through a connecting pipeline, which is used to release the pressure inside the soft inflatable bag when the soft inflatable bag is subjected to a sudden extrusion force. In the present application, a flexible filler is provided inside the soft inflatable bag, and the flexible filler can prevent the bag body from collapsing excessively when the gas in the soft inflatable bag is completely exhausted, thereby avoiding the situation of uneven collapse of the seat surface. In the present application, the shock absorption mechanism not only plays a role in shock absorption and increases the riding comfort, but also can prevent the pressure inside the soft inflatable bag from not being released and damaging the pressure-bearing capacity of the soft inflatable bag.

Description

Technical Field

[0001] The present disclosure generally relates to the technical field of vehicle seats, and more particularly to a seat comfort adjustment device and a vehicle seat. Background Art

[0002] In recent years, with the understanding and progress of seat comfort, it has been found that in addition to the traditional view that a comfortable seat has a well-shaped wrap-around ergonomic design, soft breathability, and supportiveness, it has gradually been recognized that the hardness of the seat surface can be intelligently adjusted, which has important significance and impact on the improvement and research of seat comfort.

[0003] The existing structure for adjusting the softness and hardness of a seat by air has the following disadvantages: when inflated, the bulging shape of the airbag does not conform to the seat surface, destroying the shaping structure of the seat surface, and reducing the comfort of the occupants when increasing the hardness.

[0004] When the road is bumpy or the occupant suddenly applies force to the seat surface, especially when the above situations occur intensively, the soft airbag will suddenly deform under pressure, and the human body will feel the vibration along with the sudden deformation. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a seat comfort adjustment device and a vehicle seat.

[0006] In a first aspect, the present application provides a seat comfort adjustment device, the device includes at least one soft airbag that can be integrated into a seat; the soft airbag is filled with a flexible filler; the soft airbag is filled with gas; the soft airbag is provided with a height limiting structure for defining the local expansion height when the soft airbag is inflated; the soft airbag is also connected with a shock absorption mechanism through a connecting pipeline, for releasing the pressure in the soft airbag when the soft airbag is subjected to a sudden extrusion force.

[0007] According to the technical solution provided by the embodiment of the present application, the soft airbag is connected with at least one air path and a gas source for inflating the soft airbag through the air path; the soft airbag inflates or discharges gas through the air path to adjust the softness and hardness of the seat surface.

[0008] According to the technical solution provided by the embodiment of the present application, the shock absorption mechanism includes at least one elastic sealing capsule; the connecting pipeline communicates the cavity of the sealing capsule and the cavity of the soft airbag.

[0009] According to the technical solution provided by the embodiment of the present application, the shock absorption mechanism includes a cylinder; the cylinder has a first cavity and a second cavity; the connecting pipeline communicates the cavity of the soft inflatable bag with the first cavity; the extending end of the piston of the cylinder is fixedly connected to one end of a return spring; the other end of the return spring is connected to a fixed structure.

[0010] According to the technical solution provided by the embodiment of the present application, it further includes a flow rate regulating mechanism for regulating the flow rate in the connecting pipeline.

[0011] According to the technical solution provided by the embodiment of the present application, the flow rate regulating mechanism includes a clamp sleeved outside the connecting pipeline; the clamp includes an annular part provided with an opening, and two movable ends of the annular part respectively extend outwards in parallel with a first adjusting piece and a second adjusting piece; a threaded hole is opened on the first adjusting piece, and a smooth through hole corresponding to the threaded hole is opened on the second adjusting piece; a screw handle passing through the smooth through hole is threadedly fixed in the threaded hole.

[0012] According to the technical solution provided by the embodiment of the present application, it further includes a micro motor; the output shaft of the micro motor is axially fixedly connected to the handle screw; the micro motor is controlled by the control module to rotate forward or backward;

[0013] The control module is further configured to: control the rotation of the micro motor according to the input signal of the input module to increase or decrease the air flow rate of the connecting air pipe.

[0014] According to the technical solution provided by the embodiment of the present application, a height limiting structure is provided inside the soft inflatable bag.

[0015] According to the technical solution provided by the embodiment of the present application, the height limiting structure is a penetrating height limiting belt and / or an in-built height limiting belt.

[0016] According to the technical solution provided by the embodiment of the present application, the soft inflatable bag is provided with a plurality of air guiding channels penetrating through the bag body, and the air guiding channels are isolated from the cavity of the soft inflatable bag and are used for conducting the gas on both sides of the soft inflatable bag.

[0017] In a second aspect, the present application provides an automotive seat, and the seat comfort adjusting device according to any one of the preceding claims is integrated on the backrest and / or seat cushion and / or side wings of the automotive seat, and the air source is provided by a micro air pump or compressed air in the vehicle body.

[0018] According to the technical solution provided by the embodiment of the present application, at least two layers of the soft inflatable bags are adjacently superposed or spacedly superposed in the softness and hardness adjustment area of the automotive seat; the softness and hardness adjustment area is the area in the automotive seat where the soft inflatable bag is provided; when the soft inflatable bag is located on the surface of the foam structure of the automotive seat, a flexible cushion is laid outside the soft inflatable bag located on the surface.

[0019] According to the technical solution provided by the embodiment of the present application, a soft inflatable bag accommodation groove for placing a soft inflatable bag is provided on the foam structure of the vehicle seat.

[0020] According to the technical solution provided by the embodiment of the present application, a cover accommodation groove for placing a cover is provided on the opening side of the soft inflatable bag accommodation groove; the cover accommodation groove and the soft inflatable bag accommodation groove are in a trapezoidal structure.

[0021] According to the technical solution provided by the embodiment of the present application, a heating pad is provided between the foam structure of the vehicle seat and the seat cover.

[0022] The present application designs a seat comfort adjustment device, which is mainly composed of a soft inflatable bag. The soft inflatable bag is provided with a flexible filler. The flexible filler can prevent the bag body from collapsing excessively when the gas in the soft inflatable bag is completely exhausted, thereby avoiding the situation of uneven collapse of the seat surface. The soft inflatable bag is filled with gas. Since a shock absorption mechanism is also connected to the soft inflatable bag, when the road is bumpy frequently, when the soft inflatable bag is continuously impacted by repeated pressure, the pressure can be temporarily released through the shock absorption mechanism, and a part of the air is compressed into the buffer shock absorption mechanism. The pressure change of the soft inflatable bag is reduced, the change of softness and hardness is reduced, and the whole process is slowed down, so as to play a role in shock absorption and increase the comfort of human body sitting; it also avoids the pressure in the soft inflatable bag not being released, which reduces the pressure-bearing capacity of the soft inflatable bag; by designing a height limit structure, the distance between the upper and lower layers of the soft inflatable bag can be restricted, and when inflated, the soft inflatable bag will not bulge into a round shape, causing abnormal protrusion deformation on the seat surface, so that the soft inflatable bag can conform to the surface of the seat when inflated, further improving the beauty and comfort of the seat surface.

[0023] According to the technical solution provided by the embodiment of the present application, the soft inflatable bag is connected to a gas source through a gas path, and the softness and hardness of each part of the seat surface can be adjusted by inflating and deflating the soft inflatable bag. The softness and hardness requirements of different passengers are met; since this device is independently set, it does not affect the support performance of the whole seat.

[0024] According to the technical solution provided by the embodiment of the present application, when the impact force received by the soft inflatable bag disappears, the pressure of the soft inflatable bag decreases, and the shock absorption mechanism resets, so that the pressure in the soft inflatable bag is restored, and the soft inflatable bag returns to the original softness and hardness state.

[0025] According to the technical solution provided by the embodiment of the present application, by opening air guide channels on the soft inflatable bag, the seat of the present application can integrate ventilation and softness and hardness adjustment functions; by setting a heating pad above the soft inflatable bag, ventilation and / or heating and softness and hardness adjustment functions are further integrated.

[0026] According to the technical solution provided by the embodiment of the present application, by designing a trapezoidal cover accommodating groove and a bag accommodating groove, the edge of the bag can be completely blocked.

[0027] According to the technical solution provided by the embodiment of the present application, the soft inflatable bags on the seat are arranged in multiple layers, realizing the adjustment of softness and hardness of different levels, further expanding the range of softness and hardness adjustment of the seat, and meeting more usage requirements.

[0028] According to the technical solution provided by the embodiment of the present application, the soft inflatable bags on the seat can be independently controlled respectively, enabling different softness and hardness adjustments for different parts of the seat; in a preferred embodiment, the soft inflatable bags on the seat can also be grouped, so as to realize the grouped control of multiple soft inflatable bags in the same area, simultaneously adjusting the softness and hardness of the same area, avoiding the phenomenon of unevenness on the seat surface caused by non-simultaneous adjustment. At the same time, grouped adjustment can also reduce the number of regulating valves used and lower the control cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features, objects, and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0030] Figures 1 to 5 It is a schematic structural diagram of the seat comfort adjustment device in the first embodiment of the present application;

[0031] Figure 6 It is a top view structural diagram of the soft inflatable bag in the first embodiment of the present application;

[0032] Figures 7 to 12 It is a schematic structural diagram of the seat comfort adjustment device in the second embodiment of the present application;

[0033] Figure 13 It is a schematic structural diagram of the solenoid valve module in the second embodiment of the present application;

[0034] Figure 14 It is a schematic structural diagram of the soft inflatable bag in the third embodiment of the present application;

[0035] Figures 15 - 16 It is a schematic structural diagram of the clamp in the third embodiment of the present application;

[0036] Figure 17 It is a schematic structural diagram of the seat comfort adjustment device in the fourth embodiment of the present application;

[0037] Figure 18 It is a top view structural diagram of the soft inflatable bag in the fourth embodiment of the present application;

[0038] Figure 19 It is a schematic structural diagram of the vehicle seat in the fifth embodiment of the present application;

[0039] Figure 20 This is a schematic structural diagram of the vehicle seat in Embodiment 5 of the present application when the soft inflatable bag has a low hardness;

[0040] Figure 21 This is a schematic structural diagram of the vehicle seat in Embodiment 5 of the present application when the soft inflatable bag has a high hardness;

[0041] Figures 22 to 24 This is a schematic structural diagram of the vehicle seat in Embodiment 6 of the present application;

[0042] Figure 25 This is a schematic structural diagram of the vehicle seat in Embodiment 7 of the present application;

[0043] Figures 26 to 29 This is a schematic structural diagram of the vehicle seat in Embodiment 8 of the present application;

[0044] Reference numerals in the figure:

[0045] 10. Soft inflatable bag; 11. Air passage; 12. Air guide hole channel; 20. Flexible filler; 30. Height limit structure; 40. Solenoid valve; 50. Air source; 60. Control module; 31. Penetrating height limit belt; 32. Built-in height limit belt; 70. Vehicle seat; 70-1. Ventilation hole; 71. Backrest; 71-1. Shoulder; 72. Seat cushion; 73. Flank; 74. Seat cover; 75. Foam structure; 80. Occupant; 76. Soft inflatable bag accommodation groove; 76-1. Upper soft inflatable bag accommodation groove; 76-2. Lower soft inflatable bag accommodation groove; 13. First soft inflatable bag; 14. Second soft inflatable bag; 15. Third soft inflatable bag; 16. Fourth soft inflatable bag; 77. Flexible gasket; 78. Support skeleton; 90. Covering body; 100. Heating pad; 70-1. Ventilation hole; 110. Air guide structure; 120. Shock absorption mechanism; 121. Sealing capsule; 122. Cylinder; 123. First cavity; 124. Second cavity; 123. First cavity; 125. Piston; 125. Return spring; 41. Two-position two-way solenoid valve; 42. Two-position three-way solenoid valve; 132. Clamp; 130. Flow regulation mechanism; 134. Second adjusting piece; 133. First adjusting piece; 135. Screw handle. Detailed implementation manners

[0046] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. Additionally, it should be noted that for the sake of description, only the parts related to the invention are shown in the drawings.

[0047] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0048] Embodiment 1

[0049] As Figure 1 shown in the structural schematic diagram of a seat comfort adjustment device provided by Embodiment 1 of the present invention, the device includes at least one soft inflatable bag 10 that can be integrated into the seat; a flexible filler 20 is filled in the soft inflatable bag 10; gas is filled in the soft inflatable bag 10; a shock absorption mechanism 120 is further connected to the soft inflatable bag 10 through a connecting pipeline 13, and is used for releasing the pressure in the soft inflatable bag 10 when the soft inflatable bag 10 is subjected to a sudden extrusion force.

[0050] The soft inflatable bag 10 in this embodiment is as Figure 1 shown, and air pressure is filled in its cavity. The air pressure inside is generally greater than the external atmospheric pressure, so that the soft inflatable bag 10 has a certain hardness.

[0051] The shock absorption mechanism 120 can optionally adopt any of the following methods:

[0052] 1. As Figure 2 shown, the shock absorption mechanism 120 includes at least one elastic seal bag 121; the connecting pipeline 13 connects the cavity of the seal bag 121 and the cavity of the soft inflatable bag 10; since gas has been pre-filled in the soft inflatable bag 10, at this time, the cavity of the soft inflatable bag 10 and the cavity connected to the elastic seal bag 121 form a complete sealed cavity;

[0053] For a general sealed air bag, when the road is bumpy frequently, it is constantly subjected to the repeated impact force of pressure, and the pressure inside cannot be released, which will cause wear and tear on the pressure-bearing capacity of the air bag. In addition, when it is repeatedly impacted, the air bag will suddenly increase in pressure and become hard, and suddenly become soft. The sudden change in hardness will cause an uncomfortable bumpy vibration feeling to the human body; while the soft inflatable bag 10 in this embodiment is connected with a shock absorption mechanism 120, which will slow down this process. The material of the seal bag 121 in this embodiment is a deformable elastomer. As Figure 3 shown, when a part of the pressure in the soft inflatable bag 10 is greater than the deformable force, gas enters the elastic seal bag 121, and the volume of the bag body increases. When the impact force disappears, the deformation of the soft inflatable bag 10 disappears. The contraction force of the elastic seal bag 121 is greater than the pressure of the soft inflatable bag 10, and the volume of the elastic seal bag 121 shrinks and returns to its original state, compressing the gas back into the soft inflatable bag 10, and the soft inflatable bag 10 returns to its original softness and hardness; therefore, during the bumpy process of the car seat, the elastic seal bag 121 releases the air pressure in the soft inflatable bag in time or restores its air pressure according to the change of the pressure in the soft inflatable bag 10, reducing the sudden change amount and sudden change speed of the air pressure in the soft inflatable bag, and increasing the comfort of the human body when sitting.

[0054] In this embodiment, the sealing bag 121 may be made of rubber or silicone rubber, for example.

[0055] 2. Such as Figure 4 As shown, the shock absorbing mechanism 120 includes a cylinder 122 having a first cavity 123 and a second cavity 124. The connecting pipe 13 connects the cavity of the soft inflatable bag 10 with the first cavity 123. The extended end of the piston 125 of the cylinder 122 is fixedly connected to one end of a return spring 126. The other end of the return spring 126 is connected to a fixed structure 127. The fixed structure can be, for example, a fixed structure in the seat, such as a seat frame.

[0056] When the pressure is increased suddenly, Figure 5 As shown, part of the air in the soft inflatable bag 10 will be compressed into the first cavity 123. The sudden increase in pressure in the first cavity 123 will push the piston 125 to move toward the second cavity 124. The return spring 126 is squeezed, the pressure change of the soft inflatable bag 10 is reduced, and the hardness change is reduced, which slows down the whole process and increases the comfort of the human body.

[0057] And when the impact force disappears, the pressure of the soft inflatable bag 10 decreases. Under the action of the restoring force of the return spring 126, the piston 125 moves toward the first cavity 123. The piston 125 will squeeze the gas in the first cavity 123 back into the soft inflatable bag 10 until the return spring 126 is reset and the soft inflatable bag 10 returns to its original soft and hard state.

[0058] The above are only two examples of the shock absorbing mechanism 120 , and other feasible solutions with similar functions may also be adopted.

[0059] In this embodiment, the flexible filler 20 can be a flexible material such as sponge or foam.

[0060] Among them, in this embodiment, Figures 1 to 5 and Figure 6 As shown, the height limiting structure 30 includes distributed and arranged penetrating height limiting belts 31 and / or built-in height limiting belts 32. The cross-sections of the penetrating height limiting belts 31 and built-in height limiting belts 32 can be in various shapes such as dot, strip, circle or honeycomb.

[0061] The longitudinal section of the penetrable height limiting belt 31 is I-shaped, with both ends extending outside the soft inflatable bag 10. The vertical portion thereof is slightly longer than the normal height of the soft inflatable bag 10 when deflated. When the soft inflatable bag 10 is inflated, the end thereof extending outside the soft inflatable bag 10 can exert pressure on the surface of the soft inflatable bag 10 to prevent the single point of the soft inflatable bag from expanding too high.

[0062] In a preferred embodiment, openings are provided in the middle of the penetrable height limiting belt 31 and the built-in height limiting belt 32 to conduct the gas on both sides of the penetrable height limiting belt 31 and the built-in height limiting belt 32. The provision of the openings facilitates the circulation of gas in the soft inflatable bag.

[0063] The material of the penetrable height limiting belt 31 and the built-in height limiting belt 32 is a flexible material, and optional materials include nylon, polyester film, braided belt, woven cloth, non-woven fabric, soft plastic breathable film, plastic sheet with holes, etc.

[0064] The longitudinal section of the penetrable height limiting belt 31 is I-shaped, with both ends extending outside the soft inflatable bag 10. The vertical portion thereof is slightly longer than the normal height of the soft inflatable bag 10 when deflated. When the soft inflatable bag 10 is inflated, the end thereof extending outside the soft inflatable bag 10 can exert pressure on the surface of the soft inflatable bag 10 to prevent the single point of the soft inflatable bag from expanding too high.

[0065] Since the penetrable height limiting belt 31 passes through the bag body of the soft inflatable bag 10, in order to ensure the sealing of the penetration point during inflation, the end portion extending outside the soft inflatable bag 10 and the surface adjacent to the soft inflatable bag 10 is provided with a sealing ring or coated with sealant or the end portion is welded to the bag body to prevent gas from overflowing from the penetration point.

[0066] The two ends of the built-in height limiting belt 32 are respectively fixed to the upper and lower surfaces of the soft inflatable bag. The two ends of the built-in height limiting belt 32 can be selectively fixed in the soft inflatable bag by the following methods: ultrasonic welding, gluing, riveting, threading, etc.

[0067] Regardless of the above-mentioned method, the built-in height limiting belt 32 limits the inflated height of the soft inflatable bag 10 at that location by tightening the upper and lower parts of the bag body of the soft inflatable bag 10 .

[0068] The height limiting structure 30 can adopt the form of a penetrable height limiting belt 31 or a built-in height limiting belt 32 alone; or adopt the form of a penetrable height limiting belt 31 and a built-in height limiting belt 32 at the same time; no matter which form is adopted, the uniformly distributed design of the height limiting structure 30 in this embodiment makes the swollen shape of each part of the soft inflatable bag 10 when inflated consistent with the shape of the foam structure of the car seat, and also consistent with its shape when deflated, that is, it realizes the shape conforming to the original state of the seat surface, ensures the beauty and comfort of the seat surface when inflated, and at the same time, increases the contact area between the passenger and the seat surface in the corresponding area of the soft inflatable bag 10, thereby improving safety; at the same time, the gas in the soft inflatable bag 10 is not isolated by the height limiting structure 30 and can flow freely.

[0069] Embodiment 2

[0070] like Figure 7As shown, on the basis of Embodiment 1, the soft inflatable bag (10) provided in this embodiment is connected to at least one gas path (11) and a gas source (50) for inflating the soft inflatable bag (10) through the gas path (11); the soft inflatable bag (10) inflates or discharges gas through the gas path (11) to adjust the softness and hardness of the seat surface.

[0071] In this embodiment, the air pressure inside the soft inflatable bag 10 is not fixed, and the amount of gas inside the soft inflatable bag 10 can be adjusted by inflating and deflating the gas path; for example Figure 7 is a schematic structural diagram of the soft inflatable bag when it is not inflated, such as Figure 8 is a schematic structural diagram of the soft inflatable bag 10 after being filled with gas;

[0072] Corresponding to Embodiment 1, in this embodiment, the shock absorption mechanism 120 can also correspondingly adopt the form of a sealed capsule 121 or a cylinder assembly:

[0073] 1. Such as Figure 9 is a schematic structural diagram of the soft inflatable bag 10 after being filled with gas and the shock absorption mechanism 120 is a sealed capsule 121, such as Figure 10 As shown, when the seat jolts, gas enters the elastic sealed capsule 121, and the volume of the capsule body increases. When the impact force disappears, the deformation of the soft inflatable bag 10 disappears, and the contraction force of the elastic sealed capsule 121 is greater than the pressure of the soft inflatable bag 10, so the volume of the elastic sealed capsule 121 shrinks and returns to its original state;

[0074] 2. Such as Figure 11 is a schematic structural diagram of the soft inflatable bag 10 after being filled with gas and the shock absorption mechanism 120 is a cylinder 122 and other related components; such as Figure 12 As shown, when the seat jolts and there is a sudden pressure increase, a part of the air inside the soft inflatable bag 10 will be compressed into the first cavity 123, and the suddenly increased pressure in the first cavity 123 will push the piston 125 in the direction of the second cavity 124, and the return spring 126 will be compressed; when the impact force disappears, the pressure of the soft inflatable bag 10 decreases, and under the action of the restoring force of the return spring 126, the piston 125 moves in the direction of the first cavity 123, and the piston 125 will squeeze the gas in the first cavity 123 to flow back into the soft inflatable bag 10 until the return spring 126 is reset and the soft inflatable bag 10 returns to its original softness and hardness state.

[0075] In this embodiment, the shock absorption adjustment of the shock absorption mechanism 120 for the soft inflatable bag 10 is applicable when the air pressure inside the soft inflatable bag 10 has stabilized, that is, when the gas path 10 is in a closed state.

[0076] Among them, the air circuit generally refers to the air circuit structure that provides the air source 11 for the soft inflatable bag 10. For example, in this embodiment, the air circuit includes a nozzle fixed on the soft inflatable bag and a trachea fixedly connected to the nozzle; the end of the trachea is connected to the air outlet of the solenoid valve module 40, and the air inlet of the solenoid valve module 40 is connected to an air source 50; as Figure 13 shown, the solenoid valve module 40 includes, for example, a series-connected two-position two-way solenoid valve 41 and a two-position three-way solenoid valve 42, that is, the air inlet of the two-position two-way solenoid valve 41 serves as the air inlet of the entire solenoid valve module 40, and the air outlet of the two-position two-way solenoid valve 41 is communicated with the air inlet of the two-position three-way solenoid valve 42; the air outlet of the two-position three-way solenoid valve 42 is connected to the trachea, and the air release port of the two-position three-way solenoid valve 42 serves as the air release port of the entire solenoid valve module 40; when only the two-position two-way solenoid valve 41 is powered on, the soft inflatable bag 10 is inflated, and when only the two-position three-way solenoid valve 42 is powered on, the soft inflatable bag 10 is deflated; when neither solenoid valve is powered on, the soft inflatable bag 10 is in a pressure-holding state. The power-on and power-off of the solenoid valve module 40 are controlled by the control module 60. The control module 60 can be, for example, a control circuit composed of a single-chip microcomputer as the core processor. When the air source is an air pump, the air pump and the solenoid valve module 40 are integrated, and the control module 60 can be the control circuit in the integrated part.

[0077] In other embodiments, the solenoid valve module 40 can also be replaced by a manual valve. At this time, the manual valve includes a pressing airbag. An air outlet one-way valve is arranged at the air outlet of the pressing airbag, and an air inlet one-way valve is arranged at its air inlet; when the pressing airbag is manually squeezed, the pressure in the airbag increases, and the air outlet one-way valve opens to inflate the soft inflatable bag 10; when the pressing airbag is released, the pressure in the airbag is small, and external air enters the airbag through the air inlet one-way valve; by repeatedly pressing the airbag, the soft inflatable bag 10 can be inflated.

[0078] In this embodiment, one soft inflatable bag 10 is provided with one air circuit 11. In other embodiments, one soft inflatable bag 10 can also be provided with multiple air circuits 11 to make the soft hardness of each part of the soft inflatable bag 10 uniform.

[0079] Embodiment Three

[0080] Based on Embodiment One, as Figure 14 shown, the seat comfort adjustment device provided in this embodiment further includes a flow rate adjustment mechanism 130 for adjusting the flow rate in the connection pipeline 13.

[0081] In this embodiment, as Figure 15As shown, the flow rate regulating mechanism 130 includes a clamp 132 sleeved outside the connecting pipeline 13; the clamp 132 includes an annular part with an opening, and two movable ends of the annular part extend outward in parallel with a first adjusting piece 133 and a second adjusting piece 134; a threaded hole is formed in the first adjusting piece 133, and a smooth through hole corresponding to the threaded hole is formed in the second adjusting piece 134; a screw handle 135 is threadedly fixed in the threaded hole after passing through the smooth through hole.

[0082] The above flow rate regulating mechanism 130 adjusts the flow rate of the connecting pipeline 13 by adjusting the size of the annular part; as Figure 16 shown, when the screw handle 135 is rotated clockwise, the screw handle 135 moves towards the direction of the first adjusting piece 133, pulling the first adjusting piece 133 and the second adjusting piece 134 closer, thereby making the aperture of the annular part of the clamp 132 smaller, and the diameter of the connecting pipeline 13 at this place also smaller, so as to realize reducing the flow rate of the connecting pipeline; on the contrary, when the screw handle 135 is rotated counterclockwise, the flow rate of the connecting pipeline can be increased.

[0083] When the hardness requirement of the seat for the occupant is relatively high, reducing the flow rate of the connecting pipeline 13 can make the hardness change of the soft inflatable bag 10 smaller, avoid suddenly changing from high hardness to softness, and maintain the high hardness requirement of the occupant for the seat; when the hardness requirement of the occupant for the seat is relatively low, increasing the flow rate of the connecting pipeline 13 can make the air pressure in the soft inflatable bag 10 be quickly released without affecting the softness requirement of the occupant.

[0084] The adjustment method of the above flow rate regulating mechanism 130 is manual adjustment. In a preferred embodiment, electric adjustment can be adopted. At this time, the flow rate regulating mechanism 130 further includes a micro motor; the output shaft of the micro motor is axially fixedly connected with the handle screw 135; the micro motor is controlled by the control module 60 to rotate forward or backward;

[0085] The electric adjustment method can optionally adopt the following two forms:

[0086] 1. Set an input module, such as an input panel, which has a large flow rate button and a small flow rate button on the panel; when the user clicks the large flow rate button, the control module 60 controls the micro motor to drive the handle screw 135 to rotate, expanding the clamp 132 to increase the flow rate of the connecting pipeline 13; when the user clicks the small flow rate button, the control module 60 controls the micro motor to drive the handle screw 135 to rotate, shrinking the clamp 132 to reduce the flow rate of the connecting pipeline 13;

[0087] 2. In this embodiment, the seat comfort adjustment device further includes a pressure sensor for detecting the pressure in the soft inflatable bag 10 and a solenoid valve module 40 for shutting off or opening the air passage 11; the control module 60 includes an input module; the input module is configured to input a set pressure corresponding to the soft inflatable bag 10; the control module 60 is configured to receive the pressure signal from the pressure sensor and stop inflating the soft inflatable bag when it determines that the pressure signal reaches the set pressure; therefore, in this embodiment, the pressure in the soft inflatable bag 10 is set as needed; and the flow rate of the connecting pipeline 13 can be adjusted according to the set pressure, that is, the intelligent module 60 can automatically judge whether to increase or decrease the flow rate according to the demand information of the softness and hardness state.

[0088] Generally, the pressure range in the soft inflatable bag 10 is 0.05 Mpa - 0.1 Mpa; when the air pressure is greater than or equal to 0.7 Mpa, it is in a high hardness state; when the air pressure is less than or equal to 0.3 Mpa, it is in a low hardness state; when it is determined that the set pressure is greater than or equal to a first set value, for example, 0.7 Mpa, the micro motor is controlled to rotate so that the air flow rate of the connecting air pipe 13 is less than or equal to a first flow rate; when it is determined that the set pressure is less than or equal to a second set value, for example, 0.3 Mpa, the micro motor is controlled to rotate so that the air flow rate of the connecting air pipe 13 is greater than or equal to a second flow rate; when it is determined that the set pressure is between the first set value and the second set value, the micro motor is controlled to rotate so that the air flow rate of the connecting air pipe 13 is equal to a third flow rate; the first flow rate, the third flow rate, and the second flow rate decrease in sequence, and the specific values can be set according to the diameter of the connecting pipeline 13.

[0089] Embodiment Four

[0090] In the seat comfort adjustment device provided in this embodiment, on the basis of Embodiment Two, as Figure 17 and Figure 18 shown, a plurality of air guiding channels 12 are formed on the soft inflatable bag 10 for conducting the air flow on both sides of the soft inflatable bag 10. The air guiding channels 12 are isolated from the cavity of the soft inflatable bag 10, and the cavity of the soft inflatable bag 10 is the cavity filled with the flexible filler 20, that is, the cavity for accommodating the inflated gas.

[0091] The seat comfort adjustment device provided in this embodiment can be applied to an automotive seat with ventilation performance. The air guided from the bottom of the seat to the seat surface can be blown out from the air guiding channels 12 and finally pass through the seat surface and blow towards the human body. The design of the air guiding channels of the seat softness and hardness adjustment device in this embodiment further improves the applicability of the device.

[0092] This embodiment is also applicable to the air suction type seat ventilation.

[0093] Embodiment Five

[0094] As Figure 19 shown, this embodiment provides an automotive seat 70, and a seat comfort adjustment device in the first embodiment is integrated on the backrest 71, seat cushion 72, and side wings 73 of the automotive seat 70; in other embodiments, the seat comfort adjustment device may also be disposed on any one or more parts of the backrest 71, seat cushion 72, and side wings 73 of the automotive seat.

[0095] Taking the seat cushion 72 of the automotive seat 70 as an example, the soft inflatable bag is installed between the seat cover 75 and the foam structure 74 of the seat cushion 72, and the air path of the soft inflatable bag 10 extends through the foam structure 74 from the bottom and is connected to the air source.

[0096] In this embodiment, solenoid valve modules 40 are respectively installed on the air paths 11 of the soft inflatable bags 70 disposed on various parts of the automotive seat 70, and the control module 60 on the automotive seat 70 independently controls the inflation and deflation of each of the soft inflatable bags 10 by controlling the on / off of each of the solenoid valve modules 40. The independent control of each of the soft inflatable bags 10 enables the inflation and deflation of each of the soft inflatable bags 10 to be carried out independently, so that different inflation and deflation combinations can be formed by each of the soft inflatable bags 10, realizing multi-function and adjustment of multiple hardness levels.

[0097] Optionally, in other embodiments, all the soft inflatable bags 10 on the automotive seat 70 are grouped, and the air paths of each group of soft inflatable bags 10 converge on a branch air path, and a branch solenoid valve module is installed on the branch air path; the control module 60 controls the inflation and deflation of each group of soft inflatable bags 10 by controlling the on / off of each group of branch solenoid valve modules.

[0098] The grouping rule of the soft inflatable bags 10 can be set according to the position area or actual use requirements or control requirements. For example, when grouping by area, the air paths of all the soft inflatable bags located on the side wings 73 are connected in parallel and connected to a common branch air path; the air paths of all the soft inflatable bags on the seat cushion 72 are connected in parallel and connected to a common branch air path; the air paths of all the soft inflatable bags on the backrest 71 are connected in parallel and connected to a common branch air path; the grouped soft inflatable bags 10 can achieve overall control, enabling the soft inflatable bags in the same area to act synchronously.

[0099] Taking the seat cushion 72 part of the automotive seat 70 as an example, in the state where the driver or passenger 80 is sitting on the seat equipped with the soft inflatable bag 10, when the soft inflatable bag 10 is in an unfilled state, the height-limiting structure 30 bends and collapses. The soft inflatable bag 10 and the flexible filler inside are compressed, and the seat surface is in a relatively soft state, and the human torso sinks deeper into the seat surface as Figure 20As shown. When the driver or passenger 80 is sitting on the seat surface and the soft inflatable bag 10 is in a fully inflated state, the height-limiting structure 30 is relatively extended. The soft inflatable bag 10 and the flexible filler 20 inside it are only slightly compressed, and the seat surface is in a relatively hard state, and the human torso sinks into the seat surface less, such as Figure 21 As shown. Therefore, the solution of this embodiment provides a seat with adjustable softness and hardness.

[0100] Embodiment Six

[0101] Based on Embodiment Four, multiple layers of soft inflatable bags 10 are superimposed in the softness and hardness adjustment area of the seat. The softness and hardness adjustment area is the area on the vehicle seat 70 where the soft inflatable bags 10 are provided. In this embodiment, two layers of soft inflatable bags 10 are taken as an example for illustration.

[0102] The setting method of the two layers of soft inflatable bags 10 can specifically adopt any one of the following methods:

[0103] 1. Adjacent superposition, as Figure 22 As shown, on one side of the seat foam structure 74 adjacent to the seat cover 75, there are soft inflatable bag accommodation grooves 76 for placing the soft inflatable bags 10. There are three soft inflatable bag accommodation grooves 76, namely two symmetrically arranged upper soft inflatable bag accommodation grooves 76-1 and one lower soft inflatable bag accommodation groove 76-2; a first soft inflatable bag 13 and a second soft inflatable bag 14 are arranged side by side in the two upper soft inflatable bag accommodation grooves 76-1; a third soft inflatable bag 15 is arranged in the lower soft inflatable bag accommodation groove 76-2; the first soft inflatable bag 13 and the second soft inflatable bag 14 are simultaneously controlled for inflation and deflation, and a flexible gasket 77 is provided between the first soft inflatable bag 13 and the second soft inflatable bag 14 and the seat cover 75. Local bulges appear around the height-limiting structure 30, generating a slightly uneven state. The flexible gasket 77 can make up for this state and improve the comfortable flatness of the seat surface; when only the first soft inflatable bag 13 and the second soft inflatable bag 14 in the upper soft inflatable bag accommodation groove 76-1 are inflated, or only the third soft inflatable bag 15 works, a medium-hard seat cushion hardness can be provided; when the first soft inflatable bag 13, the second soft inflatable bag 14 and the third soft inflatable bag 15 are simultaneously inflated, a stronger hardness seat cushion hardness can be provided; and when only the third soft inflatable bag 15 works, since the occupant does not directly contact the soft inflatable bag, there is a certain buffer distance from the third soft inflatable bag 15 to the occupant, further improving the comfort of hardness adjustment.

[0104] 2. Spaced superposition, as Figure 23As shown in the figure, two layers of soft inflatable bags are respectively located on one side close to the seat cover 75 and on the side far from the seat cover 75. Since the third soft inflatable bag 15 at the bottom is in direct contact with the support skeleton 78 of the seat 70, in order to protect the third soft inflatable bag 15, a flexible cushion 77 is also provided between the third soft inflatable bag 15 and the support skeleton 78. Of course, if the bag body material of the third soft inflatable bag 15 is relatively strong, such as Figure 24 as shown in the figure, a flexible pad 77 may not be provided at its bottom.

[0105] The materials of the above-mentioned covering body 90 and the flexible cushion 77 can be the same, for example, both are flexible materials such as non-woven fabric, non-woven felt, foam, sponge pad body, etc.

[0106] Embodiment Seven

[0107] On the basis of Embodiment Five, as Figure 25 shown in the figure, the foam structure 74 is further provided with a covering body accommodation groove 79 on the side close to the seat cover 75 of the soft inflatable bag accommodation groove 76 for placing the covering body 90; the covering body accommodation groove 79 and the soft inflatable bag accommodation groove 76 are in a trapezoidal structure; when the soft inflatable bag 10 is inflated, local bulges appear around the height limiting structure 30, generating a slightly uneven state, and the covering body 90 can compensate for this state, improving the comfortable flatness of the seat surface.

[0108] The covering body accommodation groove 79 is wider than the soft inflatable bag accommodation groove 76, which can fully cover the edge of the soft inflatable bag and protect the soft inflatable bag 10.

[0109] Embodiment Eight

[0110] On the basis of Embodiment Four, the structure of the soft inflatable bag is replaced with the soft inflatable bag structure in Embodiment Three. At this time, a heating pad 100 is further provided between the soft inflatable bag 10 and the seat cover 75. The automobile seat has a ventilation structure, and the ventilation structure includes a wind guiding structure 110 provided at the bottom of the automobile seat 70. The air flow led out by the wind guiding structure 110 flows out from the ventilation hole channel 74-1 in the foam structure 74 and then flows through the air guiding hole 12 of the soft inflatable bag 10 to the side of the seat provided with the seat cover 75.

[0111] As Figures 26 to 28 shown in the figure, the seat 70 provided in this embodiment integrates the functions of heating, ventilation and softness adjustment. Heating pads 100 are provided on the backrest 71 and the seat cushion 72 of the seat 70; the functions are more abundant; the setting of the ventilation holes 70-1 can be increased according to needs. When there are ventilation, softness adjustment and heating functions, the base material of the heating pad is preferably a base material with good air permeability, or openings are made in the heating pad. Heating, ventilation and softness adjustment can be integrated and controlled on a control module to reduce costs.

[0112] Preferably, as Figure 28 shown, the softness and hardness adjustment in this embodiment can also correspondingly adopt a multi-layer adjustment method. In this embodiment, it can be seen that in order to cooperate with the seat having a ventilation structure, a plurality of soft air bags 10 with intervals can also be arranged on the same layer, and ventilation holes 74-1 leading to the seat cover 75 are opened on the foam structure 74 between the soft air bags 10; positions for the ventilation holes 74-1 are reserved between the first soft air bag 13 and the second soft air bag 14 arranged side by side in the upper part, and between the third soft air bag 15 and the fourth soft air bag 16 arranged side by side in the lower part; it can be seen from the enlarged view of part A of this figure that when the soft air bag is inflated, a local bulging state will occur around the height limiting structure 30, and the flexible cushion 77 can just make up for this state and improve the comfort and flatness of the seat surface.

[0113] Preferably, as Figure 29 shown, a cover body reserved groove 79 can also be provided above the reserved groove 76 for the soft air bag in the vehicle seat of this embodiment for placing the cover body 90.

[0114] The above description is only the preferred embodiment of the present application and the description of the applied technical principle. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solution formed by mutually replacing the above features with the (but not limited to) technical features having similar functions disclosed in the present application.

Claims

1. A seat comfort adjustment device, characterized in that, The device includes at least one soft inflatable bag (10) that can be integrated into the seat; the soft inflatable bag (10) is filled with a flexible filler (20); the soft inflatable bag (10) is filled with gas; a height limiting structure (30) for defining the local expansion height when the soft inflatable bag is inflated is provided inside the soft inflatable bag (10), and an opening is provided in the middle of the height limiting structure (30) for conducting the gas on both sides of the height limiting structure (30), facilitating the circulation of the gas inside the soft inflatable bag (10); a shock absorption mechanism (120) is also connected to the soft inflatable bag (10) through a connecting pipeline (13) for releasing the pressure inside the soft inflatable bag (10) when the soft inflatable bag (10) is subjected to a sudden extrusion force; when the road jolts frequently and the soft inflatable bag (10) is continuously impacted by pressure, the pressure can be temporarily released through the shock absorption mechanism (120), a part of the air is compressed into the shock absorption mechanism (120), the pressure change of the soft inflatable bag (10) is reduced, and the change in softness and hardness is reduced, avoiding the situation where the pressure inside the soft inflatable bag (10) cannot be released and the pressure-bearing capacity of the soft inflatable bag is damaged. When the pressure applied to the soft inflatable bag (10) disappears, the pressure of the soft inflatable bag (10) decreases, the shock absorption mechanism (120) resets, and the pressure inside the soft inflatable bag (10) is restored; The shock absorption mechanism (120) includes a cylinder (122); the cylinder (122) has a first cavity (123) and a second cavity (124); the connecting pipeline (13) communicates the cavity of the soft inflatable bag (10) with the first cavity (123); the protruding end of the piston (125) of the cylinder (122) is fixedly connected to one end of a return spring (126); the other end of the return spring (126) is connected to a fixed structure (127).

2. The seat comfort adjustment device according to claim 1, characterized in that, The soft inflatable bag (10) is connected to at least one gas path (11) and a gas source (50) for inflating the soft inflatable bag (10) through the gas path (11); the soft inflatable bag (10) inflates or discharges gas through the gas path (11) to adjust the softness and hardness of the seat surface.

3. The seat comfort adjustment device according to claim 1 or 2, characterized in that, The shock absorption mechanism (120) includes at least one elastic seal bag (121); the connecting pipeline (13) connects the cavity of the seal bag (121) and the cavity of the soft inflatable bag (10).

4. The seat comfort adjustment device according to claim 1 or 2, characterized in that, It also includes a flow rate adjusting mechanism (130) for adjusting the flow rate inside the connecting pipeline (13).

5. The seat comfort adjustment device according to claim 4, wherein The flow rate adjusting mechanism (130) includes a clamp (132) sleeved outside the connecting pipeline (13); the clamp (132) includes an annular part with an opening, and two movable ends of the annular part extend outward in parallel with a first adjusting piece (133) and a second adjusting piece (134); a threaded hole is provided on the first adjusting piece (133), and a smooth through hole corresponding to the threaded hole is provided on the second adjusting piece (134); a screw handle (135) passing through the smooth through hole is threadedly fixed in the threaded hole.

6. The seat comfort adjustment device according to claim 5, wherein, It further includes a micro motor; the output shaft of the micro motor is axially fixedly connected to a screw handle (135); the micro motor is controlled to rotate forward or backward by a control module (60); The control module (60) is further configured to: control the rotation of the micro motor according to the input signal of the input module to increase or decrease the air flow rate of the connecting pipeline (13).

7. The seat comfort adjustment device according to any one of claims 1, 2, 5, and 6, characterized in that The height limiting structure (30) is a penetrating height limiting belt (31) and / or an in-built height limiting belt (32).

8. The seat comfort adjustment device according to any one of claims 1, 2, 5, and 6, characterized in that The soft inflatable bag (10) is provided with a plurality of air guiding channels (12) penetrating through the bag body, and the air guiding channels (12) are isolated from the cavity of the soft inflatable bag (10) for conducting the gas on both sides of the soft inflatable bag (10).

9. An automotive seat, characterized in that, The backrest (71) and / or seat cushion (72) and / or side wing (73) of the vehicle seat (70) are integrated with the seat comfort adjustment device according to any one of claims 1 to 8. The soft inflatable bag (10) is connected with at least one air path (11) and a gas source (50) for inflating the soft inflatable bag (10) through the air path (11), and the gas source (50) is provided by a micro air pump or compressed air in the vehicle body.

10. The vehicle seat according to claim 9, wherein At least two layers of the soft inflatable bags (10) are adjacently stacked or spaced and stacked in the softness and hardness adjustment area of the vehicle seat (70); the softness and hardness adjustment area is the area in the vehicle seat (70) where the soft inflatable bags (10) are provided; when the soft inflatable bag (10) is located on the surface of the foam structure (74) of the vehicle seat (70), a flexible cushion (77) is laid outside the soft inflatable bag (10) located on the surface.

11. The vehicle seat according to claim 9 or 10, characterized in that, The foam structure (74) of the vehicle seat (70) is provided with a soft inflatable bag accommodation groove (76) for placing the soft inflatable bag (10).

12. The vehicle seat according to claim 11, characterized in that, A cover accommodation groove (79) is provided on the opening side of the soft inflatable bag accommodation groove (76) for placing a cover body (90); the cover accommodation groove (79) and the soft inflatable bag accommodation groove (76) are in a trapezoidal structure.

13. The vehicle seat according to claim 9 or 10, characterized in that, A heating pad (100) is provided between the foam structure (74) of the vehicle seat (70) and the seat cover (75).

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