CN110774948A

CN110774948A - Seat comfort adjusting device and car seat

Info

Publication number: CN110774948A
Application number: CN201911108212.0A
Authority: CN
Inventors: 张海涛
Original assignee: Anwen Automobile Technology Tianjin Co Ltd
Current assignee: Anwen Automobile Technology Tianjin Co Ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-02-11

Abstract

The application discloses a seat comfort adjustment device and a car seat, wherein the device comprises at least one soft inflatable bag which can be integrated in the seat; the soft inflatable bag is filled with flexible filler; the soft inflatable bag is filled with gas; a height limiting structure used for limiting the local expansion height of the soft inflatable bag during inflation is arranged in the soft inflatable bag; the soft inflatable bag is also connected with a damping mechanism through a connecting pipeline and used for releasing the pressure in the soft inflatable bag when the soft inflatable bag is subjected to sudden-change extrusion force. In this application, be equipped with flexible filler in the soft gas bag, flexible filler can avoid when the gas gets rid of the state completely in the soft gas bag, and the bag body takes place excessive collapse, and then forms the uneven condition of seat collapse and appear, has not only played absorbing effect through damper in this application, increases the comfort level of taking, still can avoid soft gas bag internal pressure to obtain the release, the bearing capacity of the soft gas bag of loss.

Description

Seat comfort adjusting device and car seat

Technical Field

The present disclosure relates generally to the field of automotive seating technology, and more particularly, to a seat comfort adjustment device and an automotive seat.

Background

Along with the understanding and progress of people on the comfort level of the seat in recent years, the discovery that the traditional thought that a comfortable seat has a good shape of a coating type according with human engineering and soft air permeability and support property, and the realization of intelligent adjustment of the hardness and softness degree of the surface of the seat gradually has important significance and influence on the application promotion and research of the comfort level.

The existing structure for adjusting the softness and hardness of the seat through air has the following disadvantages: the bulging shape of the air bag is not matched with the surface of the seat during inflation, the modeling structure of the seat surface is damaged, and the comfort level of passengers is reduced when the hardness is increased.

When the road bumps or the rider suddenly applies force to the seat, particularly when the above conditions are intensively occurred, the soft inflatable bag is suddenly deformed by pressure, and the human body feels vibration along with the sudden deformation.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a seat comfort adjustment device and a vehicle seat.

In a first aspect the present application provides a seat comfort adjustment device comprising at least one soft airbag that may be integrated into a seat; the soft inflatable bag is filled with flexible filler; the soft inflatable bag is filled with gas; a height limiting structure used for limiting the local expansion height of the soft inflatable bag during inflation is arranged in the soft inflatable bag; the soft inflatable bag is also connected with a damping mechanism through a connecting pipeline and used for releasing the pressure in the soft inflatable bag when the soft inflatable bag is subjected to sudden-change extrusion force.

According to the technical scheme provided by the embodiment of the application, the soft inflatable bag is connected with at least one air path and an air source for inflating the soft inflatable bag through the air path; the soft inflatable bag is inflated or exhausted through the air path to adjust the hardness of the surface of the seat.

According to the technical scheme provided by the embodiment of the application, the shock absorption mechanism comprises at least one elastic sealing bag; the connecting pipeline is used for communicating the cavity of the sealing bag with the cavity of the soft inflatable bag.

According to the technical scheme provided by the embodiment of the application, the damping mechanism comprises an air cylinder; the cylinder is provided with a first cavity and a second cavity; the connecting pipeline is used for communicating the cavity of the soft inflatable bag with the first cavity; the extending end of the piston of the cylinder is fixedly connected with one end of a return spring; the other end of the reset spring is connected with the fixed structure.

According to the technical scheme provided by the embodiment of the application, the device further comprises a flow regulating mechanism for regulating the flow in the connecting pipeline.

According to the technical scheme provided by the embodiment of the application, the flow regulating mechanism comprises a hoop sleeved outside the connecting pipeline; the hoop comprises an annular part with an opening, and a first adjusting sheet and a second adjusting sheet respectively extend outwards and parallelly from two movable ends of the annular part; the first adjusting piece is provided with a threaded hole, and the second adjusting piece is provided with a smooth through hole corresponding to the threaded hole; and the screw handle penetrating through the smooth through hole is fixed in the threaded hole in a threaded manner.

According to the technical scheme provided by the embodiment of the application, the device further comprises a micro motor; an output shaft of the micro motor is axially and fixedly connected with the handle screw; the micro motor is controlled to rotate forwards or backwards by the control module;

the control module is further configured to: and controlling the micro motor to rotate according to the input signal of the input module so as to adjust the air flow of the connecting air pipe to be larger or smaller.

According to the technical scheme provided by the embodiment of the application, a height limiting structure is arranged in the soft inflatable bag.

According to the technical scheme provided by the embodiment of the application, the height limiting structure is a penetration type height limiting belt and/or a built-in type height limiting belt.

According to the technical scheme that this application embodiment provided, soft air bag is equipped with a plurality of wind-guiding pore that run through the bag body, wind-guiding pore with soft air bag's cavity is isolated, is used for with the gas of soft air bag both sides switches on.

In a second aspect, the present application provides a vehicle seat having a backrest and/or a seat cushion and/or side flaps with integrated seat comfort adjustment means as claimed in any one of the preceding claims, the air supply being provided by a micro air pump or compressed air in the vehicle body.

According to the technical scheme provided by the embodiment of the application, at least two layers of soft inflatable bags are arranged in the hardness adjusting area of the automobile seat in an adjacent overlapping or interval overlapping mode; the softness adjusting area is an area in which a soft inflatable bag is arranged in the automobile seat; when the soft inflatable bag is positioned on the surface of the foam structure of the automobile seat, a flexible gasket is laid outside the soft inflatable bag positioned on the surface.

According to the technical scheme provided by the embodiment of the application, the foam structure of the automobile seat is provided with a soft inflating bag containing groove for containing a soft inflating bag.

According to the technical scheme provided by the embodiment of the application, the cover body containing groove is formed in the opening side of the soft inflatable bag containing groove and used for placing the cover body; the cover body containing groove and the soft inflatable bag containing groove are in a trapezoidal structure.

According to the technical scheme that this application embodiment provided, be equipped with the heating pad between the cotton structure of bubble of car seat and the seat face cover.

This application is through designing seat travelling comfort adjusting device, and the device mainly comprises soft gas pocket, is equipped with flexible filler in the soft gas pocket, and when the gaseous complete discharge state in the soft gas pocket, the bag body took place excessive collapse, and then the condition that forms the seat collapse unevenness appears. The soft inflatable bag is filled with gas, and is also connected with the damping mechanism, so that when the road frequently jolts, the soft inflatable bag can release pressure temporarily through the damping mechanism when continuously subjected to repeated impact force of pressure, and a part of air is compressed into the damping mechanism, so that the pressure change of the soft inflatable bag is reduced, the change of the hardness and the softness is reduced, the whole process is slowed down, the damping effect is achieved, and the comfort of riding a human body is improved; the pressure in the soft inflatable bag can not be released, and the pressure bearing capacity of the soft inflatable bag is also prevented from being lost; through the design limit for height structure, can retrain the interval of two-layer bag body about the soft gas pocket, when avoiding aerifing, the soft gas pocket appears the drum form, causes the unusual outstanding deformation on seat surface for soft gas pocket can follow the shape with the surface of seat when aerifing, has further improved the pleasing to the eye and the comfort level on seat surface.

According to the technical scheme provided by the embodiment of the application, the soft inflatable bag is connected with an air source through an air path, and the hardness of each part on the surface of the seat can be adjusted through inflation and deflation of the soft inflatable bag. The hardness requirements of different passengers are met; because this device independent setting does not influence the support performance of whole seat.

According to the technical scheme provided by the embodiment, when the impact force on the soft inflatable bag disappears, the pressure of the soft inflatable bag is reduced, and the damping mechanism resets, so that the pressure in the soft inflatable bag is recovered, and the soft inflatable bag is recovered to the original soft and hard body.

According to the technical scheme provided by the embodiment of the application, the seat can integrate ventilation and hardness adjustment functions by arranging the air guide pore passage on the soft inflatable bag; the heating cushion is arranged above the soft inflatable bag, so that functions of ventilation and/or heating and hardness adjustment are further integrated.

According to the technical scheme that this application embodiment provided, hold the groove and the bag body holds the groove through the trapezoidal cover of design, can shelter from completely the edge of the bag body.

According to the technical scheme that this application embodiment provided, soft gas cell on the seat carries out the multilayer setting, has realized the soft or hard degree of different hardnesses and has adjusted, has further improved the scope that the soft or hard degree of seat was adjusted, satisfies more user demands.

According to the technical scheme provided by the embodiment of the application, the soft inflatable bags on the seat are respectively and independently controlled, so that different hardness and softness of different parts of the seat can be adjusted; in preferred embodiment, the soft air bags on the seat can be arranged in groups to realize the group control of a plurality of soft air bags in the same region, realize the simultaneous adjustment of the hardness and softness in the same region, avoid the phenomenon of uneven surface of the seat caused by different adjustments, and simultaneously, the use number of the adjusting valves can be reduced through the group adjustment, and the control cost is reduced.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 to 5 are schematic structural views of a seat comfort adjusting device according to an embodiment of the present application;

FIG. 6 is a schematic top view of a flexible airbag in accordance with an embodiment of the present application;

fig. 7 to 12 are schematic structural views of a seat comfort adjustment device according to a second embodiment of the present application;

FIG. 13 is a schematic structural diagram of a solenoid valve module according to a second embodiment of the present application;

FIG. 14 is a schematic structural view of a soft airbag according to a third embodiment of the present application;

15-16 are schematic structural views of a clamp band according to a third embodiment of the present application;

fig. 17 is a schematic structural view of a seat comfort adjustment apparatus according to a fourth embodiment of the present application;

FIG. 18 is a schematic top view of a fourth embodiment of the soft airbag of the present application;

FIG. 19 is a schematic structural diagram of a fifth embodiment of the present application; is composed of

FIG. 20 is a schematic view of the seat of the fifth embodiment of the present application showing the configuration of the seat when the soft airbag is relatively low in stiffness;

FIG. 21 is a schematic structural view of a fifth embodiment of the present application showing a car seat with a relatively high stiffness soft airbag;

fig. 22 to 24 are schematic structural views of a vehicle seat according to a sixth embodiment of the present application;

FIG. 25 is a schematic structural view of a seat for a vehicle according to a seventh embodiment of the present application;

fig. 26 to 29 are schematic structural views of an automobile seat according to an eighth embodiment of the present application;

reference numbers in the figures:

10. a soft inflatable bag; 11. a gas circuit; 12. an air guide duct; 20. a flexible filler; 30. a height limiting structure; 40. an electromagnetic valve; 50. a gas source; 60. a control module; 31. a transmissive height-limiting band; 32. a built-in height-limiting band; 70. a car seat; 70-1, vent holes; 71. a backrest; 71-1, shoulder; 72. a seat cushion; 73. a side wing; 74. a seat cover; 75. a foam structure; 80. a driver and a passenger; 76. a soft inflatable bag holding groove; 76-1, arranging a soft inflatable bag containing groove; 76-2, arranging a soft inflatable bag containing groove; 13. a first soft airbag; 14. a second soft airbag; 15. a third soft airbag; 16. a fourth soft airbag; 77. a flexible liner; 78. a support framework; 90. a cover body; 100. a heating pad; 70-1, vent holes; 110. a wind guide structure; 120. a damping mechanism; 121. sealing the bag; 122. a cylinder; 123. a first cavity; 124. a second cavity; 123. a first cavity; 125. a piston; 125. a return spring; 41. a two-position two-way solenoid valve; 42. a two-position three-way electromagnetic valve; 132, a clamp; 130. a flow rate adjusting mechanism; 134. a second tab; 133. a first adjustment tab; 135. a screw handle.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

Fig. 1 is a schematic structural view of a seat comfort adjustment device according to one embodiment of the present invention, which includes at least one soft airbag 10 that can be integrated into a seat; the soft inflatable bag 10 is filled with flexible filler 20; the soft inflatable bag 10 is filled with gas; the soft inflatable bag 10 is further connected with a damping mechanism 120 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 sudden-change extrusion force.

In the embodiment of the soft airbag 10 shown in fig. 1, the cavity is filled with air pressure, and the air pressure inside the cavity is generally greater than the external atmospheric pressure, so that the soft airbag 10 has a certain hardness.

The shock absorbing mechanism 120 may alternatively take any of the following forms:

1. as shown in fig. 2, the shock absorbing mechanism 120 includes at least one elastic sealing capsule 121; the connecting pipeline 13 connects the cavity of the sealing bag 121 and the cavity of the soft inflatable bag 10; because the soft inflatable bag 10 is pre-filled with gas, the cavity in the soft inflatable bag 10 and the cavity communicated with the elastic sealing bag 121 form a complete sealing cavity;

when a road frequently bumps, a common sealed air bag continuously receives repeated impact force of pressure, the internal pressure of the air bag cannot be released, the bearing capacity of the air bag is lost, in addition, when the air bag repeatedly impacts, the air bag is suddenly pressurized and hardened and suddenly softened, and the sudden hardness change can generate uncomfortable bumping and vibrating feeling for a human body; the soft airbag 10 in this embodiment is connected to a damping mechanism 120, which slows down the process, the sealing bag 121 in this embodiment is made of a deformable elastomer, as shown in fig. 3, when a part of the pressure of the gas in the soft airbag 10 is greater than the deformable force, the gas enters the elastic sealing bag 121, the bag body volume increases, when the impact force disappears, the deformation of the soft airbag 10 disappears, the contraction force of the elastic sealing bag 121 is greater than the pressure of the soft airbag 10, the volume of the elastic sealing bag 121 decreases, the elastic sealing bag returns to the original state, the gas is compressed back to the soft airbag 10, and the soft airbag 10 returns to the original hardness; therefore, the elastic sealing bag 121 releases the air pressure in the soft air bag or recovers the air pressure according to the change of the pressure in the soft air bag 10 in time during the bumping process of the automobile seat, thereby reducing the sudden change amount and speed of the air pressure in the soft air bag and increasing the comfortable feeling of the riding of a human body.

In the present embodiment, the material of the sealing bag 121 may be rubber or silicone rubber, for example.

2. As shown in fig. 4, the shock absorbing mechanism 120 includes a cylinder 122; the cylinder 122 has a first cavity 123 and a second cavity 124; the connecting pipeline 13 is used for communicating the cavity of the soft inflatable bag 10 with the first cavity 123; the extending end of the piston 125 of the cylinder 122 is fixedly connected with 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 may be, for example, a fixed structure in a seat, such as a seat frame.

When the pressure is suddenly increased, as shown in fig. 5, a part of air in the soft airbag 10 is compressed into the first cavity 123, the piston 125 is pushed by the pressure suddenly increased in the first cavity 123 to move toward the second cavity 124, the return spring 126 is squeezed, the pressure change of the soft airbag 10 is reduced, the hardness change is reduced, the whole process is slowed down, and the comfort of the human body is increased.

When the impact force disappears, the pressure of the soft airbag 10 decreases, the piston 125 moves toward the first cavity 123 under the restoring force of the return spring 126, the piston 125 will press the gas in the first cavity 123 to flow back into the soft airbag 10 until the return spring 126 is restored, and the soft airbag 10 returns to the original soft and rigid body.

The above is merely two examples of the shock absorbing mechanism 120, and other possible functionally similar solutions may be adopted.

In this embodiment, the flexible filler 20 may be a flexible material such as sponge or foam.

In the present embodiment, as shown in fig. 1 to 5 and 6, the height limiting structure 30 includes a penetration height limiting belt 31 and/or a built-in height limiting belt 32 arranged in a distributed manner. The cross sections of the penetration type height-limiting belt 31 and the built-in type height-limiting belt 32 can be in various shapes such as a point shape, a strip shape, a circular shape or a honeycomb shape.

The longitudinal section of the penetrating height-limiting belt 31 is I-shaped, two ends of the penetrating height-limiting belt extend out of the soft inflatable bag 10, the vertical part of the penetrating height-limiting belt is slightly longer than the normal height of the soft inflatable bag 10 when the soft inflatable bag 10 is deflated, and when the soft inflatable bag 10 is inflated, the end part of the penetrating height-limiting belt extending out of the soft inflatable bag 10 can apply pressure to the surface of the soft inflatable bag 10 to avoid over-high expansion of a single point of the penetrating height-limiting belt;

in a preferred embodiment, the middle portions of the penetration height-limiting belt 31 and the built-in height-limiting belt 32 are opened for conducting gas on both sides of the penetration height-limiting belt 31 and the built-in height-limiting belt 32. The arrangement of the opening is beneficial to the circulation of the gas in the soft inflatable bag.

The penetrating height-limiting belt 31 and the built-in height-limiting belt 32 are made of flexible materials, and can be selected from nylon, polyester film, woven belts, woven cloth, non-woven cloth materials, soft plastic breathable films, plastic sheets with holes and the like.

the penetrating height-limiting belt 31 penetrates through the bag body of the soft inflatable bag 10, so that in order to ensure the sealing performance of the penetrating position when the bag is inflated, the surface of the end part of the penetrating height-limiting belt, which extends out of the soft inflatable bag 10 and is adjacent to the soft inflatable bag 10, is provided with a sealing ring or is coated with sealant or the end part is welded on the bag body, so that gas is prevented from overflowing from the penetrating position.

The two ends of the built-in height-limiting belt 32 are respectively fixed on the upper surface and the lower surface of the soft inflatable bag, and the two ends of the built-in height-limiting belt 32 can be selectively fixed in the soft inflatable bag in the following ways: ultrasonic welding, gluing, riveting, cross-connecting and the like.

Regardless of the manner described above, the built-in height-limiting strap 32 limits the inflation height of the soft airbag 10 at the location by tightening the upper and lower portions of the interior of the body of the soft airbag 10.

The height limiting structure 30 can adopt a penetrating height limiting belt 31 or a built-in height limiting belt 32 mode independently; simultaneously adopts a mode of a penetration type height limiting belt 31 and a built-in type height limiting belt 32; in any way, the height limiting structure 30 with the uniformly distributed design in the embodiment enables the bulging shape of each part when the soft airbag 10 is inflated to be consistent with the shape of the foam structure of the automobile seat and the shape when the soft airbag is deflated, namely, the shape following with the original state of the seat surface is realized, the attractiveness and comfort of the seat surface when the soft airbag is inflated are ensured, meanwhile, the contact area of the seat surface of the region corresponding to the soft airbag 10 for passengers is increased, and the safety is improved; meanwhile, the gas is not isolated by the high structure 30 in the soft inflatable bag 10 and can flow freely.

Example two

As shown in fig. 7, on the basis of the first embodiment, the soft airbag (10) provided in this embodiment is connected with at least one air path (11) and an air source (50) for inflating the soft airbag (10) through the air path (11); the soft inflatable bag (10) is inflated or exhausted through the air passage (11) to adjust the hardness of the surface of the seat.

In this embodiment, the air pressure in the soft airbag 10 is not fixed, and the amount of air in the soft airbag 10 can be adjusted by inflating and deflating the air passage; fig. 7 is a schematic structural view of the soft airbag when it is not inflated, and fig. 8 is a schematic structural view of the soft airbag 10 after it is inflated with gas;

corresponding to the embodiment, in the present embodiment, the damping mechanism 120 may also take the form of a sealing bladder 121 or a cylinder assembly:

1. as shown in fig. 9, which is a schematic structural view of the soft airbag 10 after being inflated with gas and the shock absorbing mechanism 120 is a sealing bag 121, as shown in fig. 10, when the seat bumps, gas enters the elastic sealing bag 121, the bag body increases in volume, when the impact force disappears, the soft airbag 10 deforms and disappears, the contraction force of the elastic sealing bag 121 is greater than the pressure of the soft airbag 10, and the elastic sealing bag 121 reduces in volume and returns to the original state;

2. FIG. 11 is a schematic structural diagram of the soft airbag 10 after being inflated with air and the shock absorbing mechanism 120 is a cylinder 122 or other related components; as shown in fig. 12, when the seat jounces, when the pressure is suddenly increased, a part of air in the soft airbag 10 will be compressed into the first cavity 123, the pressure suddenly increased in the first cavity 123 will push the piston 125 to move toward the second cavity 124, and the return spring 126 is compressed; when the impact force disappears, the pressure of the soft airbag 10 decreases, and under the restoring force of the return spring 126, the piston 125 moves toward the first cavity 123, and the piston 125 will press the gas in the first cavity 123 to flow back into the soft airbag 10 until the return spring 126 restores, so that the soft airbag 10 restores to the original soft and rigid body.

In this embodiment, the adjustment of the damping of the soft airbag 10 by the damping mechanism 120 is suitable for the stable air pressure in the soft airbag 10, i.e. in the closed state of the air passage 10.

The air path structure is used for providing the air source 11 to the soft inflatable bag 10, and for example, in this embodiment, the air path includes an air nozzle fixed on the soft inflatable bag and an air tube fixedly connected with the air nozzle; the end part of the air pipe is connected with an air outlet of the electromagnetic valve module 40, and an air inlet of the electromagnetic valve module 40 is connected with an air source 50; as shown in fig. 13, the solenoid valve module 40 includes, for example, a two-position two-way solenoid valve 41 and a two-position three-way solenoid valve 42 connected in series, that is, an air inlet of the two-position two-way solenoid valve 41 serves as an air inlet of the whole solenoid valve module 40, and an air outlet of the two-position two-way solenoid valve 41 is communicated with an air inlet of the two-position three-way solenoid valve 42; an air outlet of the two-position three-way electromagnetic valve 42 is connected with an air pipe, and an air outlet of the two-position three-way electromagnetic valve 42 serves as an air outlet of the whole electromagnetic valve module 40; when only the two-position two-way electromagnetic valve 41 is electrified, the soft inflatable bag 10 is inflated, and when only the two-position three-way electromagnetic valve 42 is electrified, the soft inflatable bag 10 is deflated; when neither solenoid valve is energized, the soft airbag 10 is in a pressure-maintaining state. The electromagnetic valve module 40 is controlled by a control module 60, and the control module 60 may be a control circuit composed of a single chip microcomputer as a core processor, for example. When the air source is an air pump, the air pump and the electromagnetic valve module 40 are integrated, and the control module 60 may be a control circuit in the integrated component.

In other embodiments, the electromagnetic valve module 40 may also be replaced by a manual valve, where the manual valve includes a pressing air bag, an air outlet check valve is disposed at an air outlet of the pressing air bag, and an air inlet check valve is disposed at an air inlet of the pressing air bag; when the air bag is manually squeezed and pressed, the pressure in the air bag is increased, the air outlet one-way valve is opened, and the soft inflatable bag 10 is inflated; when the air bag is released and pressed, the pressure in the air bag is small, and external air enters the air bag through the air inlet one-way valve; the soft airbag 10 can be inflated by pressing the airbag back and forth.

In this embodiment, one air path 11 is provided on one soft airbag 10, and in other embodiments, a plurality of air paths 11 may be provided on one soft airbag 10, so that the softness and hardness of each part of the soft airbag 10 are uniform.

EXAMPLE III

In addition to the first embodiment, as shown in fig. 14, the seat comfort adjusting apparatus provided in the present embodiment further includes a flow rate adjusting mechanism 130 for adjusting the magnitude of the flow rate in the connecting pipeline 13.

In the present embodiment, as shown in fig. 15, the flow rate adjustment mechanism 130 includes a clamp 132 that is fitted over the connecting line 13; the clamp 132 comprises an annular part with an opening, and a first adjusting sheet 133 and a second adjusting sheet 134 extend outwards from two movable ends of the annular part in parallel; a threaded hole is formed in the first adjusting sheet 133, and a smooth through hole is formed in the second adjusting sheet 134 corresponding to the threaded hole; the screw handle 135, after passing through the smooth through hole, is threadedly secured within the threaded hole.

The flow rate adjusting mechanism 130 adjusts the flow rate of the connecting line 13 by adjusting the size of the annular portion; as shown in fig. 16, when the screw handle 135 is rotated clockwise, the screw handle 135 moves toward the first adjusting piece 133, so as to draw the first adjusting piece 133 and the second adjusting piece 134 closer, thereby reducing the aperture of the annular portion of the clamp 132 and the aperture of the connecting pipeline 13 at the position, thereby reducing the flow rate of the connecting pipeline; conversely, when the screw handle 135 is rotated counterclockwise, the flow rate of the connecting line is increased.

When the rigidity of the seat is higher for the passenger, the change of the rigidity of the soft inflatable bag 10 is smaller by adjusting the flow of the connecting pipeline 13 to be small, so that the sudden softening from high rigidity is avoided, and the requirement of the passenger on the high rigidity of the seat is maintained; when the requirement of the occupant on the hardness of the seat is low, the air pressure in the soft airbag 10 can be quickly released by adjusting the flow of the connecting pipeline 13 to be high, and the requirement of the occupant on the softness is not influenced.

The adjustment mode of the flow rate adjustment mechanism 130 is manual adjustment, and in a preferred embodiment, electric adjustment may be adopted, in which case the flow rate adjustment mechanism 130 further includes a micro motor; the output shaft of the micro motor is axially and fixedly connected with the handle screw 135; the micro motor is controlled to rotate forwards or backwards by the control module 60;

the mode of electric adjustment can be selected from the following two modes:

1. providing an input module, such as an input panel, having a large flow button and a small flow button thereon; when a user clicks the large flow button, the control module 60 controls the micro motor to drive the handle screw 135 to rotate, and the clamp 132 is expanded to increase the flow of the connecting pipeline 13; when the user clicks the small flow button, the control module 60 controls the micro motor to drive the handle screw 135 to rotate, so as to reduce the clamp 132 and reduce the flow of the connecting pipeline 13;

2. in this embodiment, the seat comfort adjusting device further includes a pressure sensor for detecting the pressure inside the soft airbag 10, and an electromagnetic valve module 40 for turning off or on the air path 11; the control module 60 includes an input module; the input module is configured to input a set pressure corresponding to the soft airbag 10; the control module 60 is configured to receive a pressure signal from the pressure sensor, and stop inflating the soft airbag when determining that the pressure signal reaches the set pressure; therefore, in the present embodiment, the pressure inside the soft airbag 10 is set as desired; 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 the flow rate should be adjusted to be larger or smaller according to the requirement information of the hardness and hardness state.

The pressure range in the soft air bag 10 is 0.05MPa-0.1 MPa; high hardness at an air pressure of 0.7MPa or more; the low hardness state is achieved when the air pressure is less than or equal to 03 MPa; when the set pressure is judged to be greater than or equal to a first set value, for example, 0.7Mpa, the micro motor is controlled to rotate so that the air flow of the connecting air pipe 13 is less than or equal to a first flow, and when the set pressure is judged to be less than or equal to a second set value, for example, 0.3Mpa, the micro motor is controlled to rotate so that the air flow of the connecting air pipe 13 is greater than or equal to a second flow; when the set pressure is judged to be between the first set value and the second set value, the micro motor is controlled to rotate so that the air flow of the connecting air pipe 13 is equal to a third flow; the first flow, the third flow and the second flow are sequentially reduced, and the specific numerical value can be set according to the pipe diameter of the connecting pipeline 13.

Example four

In the seat comfort adjusting device provided in this embodiment, on the basis of the second embodiment, as shown in fig. 17 and 18, the soft airbag 10 is provided with a plurality of air guiding ducts 12 for guiding air flow at two sides of the soft airbag 10. The air guide duct 12 is isolated from the cavity of the soft airbag 10, and the cavity of the soft airbag 10 is a cavity filled with the flexible filler 20, that is, a cavity for accommodating inflation gas.

The embodiment provides seat comfort adjusting device, can be applied to the car seat that has the ventilation performance, and the seat bottom can blow out to the wind that the seat surface was led from wind-guiding pore 12, finally passes the seat face and blows to the human body, and the design in seat softness adjusting device's the wind-guiding pore of this embodiment has further improved this device's suitability.

The present embodiment is equally applicable to induced draft seat ventilation.

EXAMPLE five

As shown in fig. 19, the present embodiment provides a vehicle seat 70, in which the backrest 71, the seat cushion 72 and the side wings 73 of the vehicle seat 70 are integrated with the seat comfort adjusting device of the first embodiment; in other embodiments, the seat comfort adjusting device may be provided at any one or more of the backrest 71, the seat cushion 72, and the side wings 73 of the vehicle seat.

Taking the seat cushion 72 of the car seat 70 as an example, the soft airbag is installed between the seat surface cover 75 and the foam structure 74 of the seat cushion 72, and the air passage of the soft airbag 10 extends from the bottom through the foam structure 74 and is connected with the air source.

In this embodiment, the air passages 11 of the soft airbags 70 disposed at various positions on the car seat 70 are respectively provided with the electromagnetic valve modules 40, and the control module 60 on the car seat 70 respectively and independently controls the inflation and deflation of the soft airbags 10 by controlling the on-off of the electromagnetic valve modules 40. The independent control of each soft air bag 10 enables the air inflation and air deflation of each soft air bag 10 to be carried out independently, so that each soft air bag 10 can form different air inflation and air deflation combinations, and the multifunctional adjustment and the adjustment of various hardness are realized.

Optionally, in other embodiments, all the soft airbags 10 on the car seat 70 are arranged in groups, and the air passages of each group of soft airbags 10 are merged on an air branch passage, on which a branch electromagnetic valve module is installed; the control module 60 controls the on-off of each set of branch electromagnetic valve modules to respectively control the inflation and deflation of each set of soft inflatable bags 10.

The grouping rule of the soft airbags 10 can be set according to the location area or the actual use requirement or control requirement, for example, when the soft airbags are grouped by area, the air paths of all the soft airbags located on the side wings 73 are arranged in parallel and connected with a common branch air path; the soft inflatable bags on all the seat cushions 72 are arranged in parallel and are connected with a common branch air passage; the soft inflatable bags on all the backrest 71 are arranged in parallel and are connected with a common branch air passage; the soft inflatable bags 10 arranged in groups can realize the master control, so that the soft inflatable bags in the same area synchronously act.

Taking the seat cushion 72 of the car seat 70 as an example, when the occupant 80 is seated on the seat with the soft airbag 10 installed, the height limiting structure 30 is bent and collapsed when the soft airbag 10 is in the unfilled state. The soft airbag 10 and the flexible filling inside thereof are compressed, the seat surface is in a relatively soft state, and the human trunk is sunk deeper into the seat surface as shown in fig. 20. When the soft airbag 10 is inflated while the occupant 80 is seated on the seat, the height-limiting structures 30 are relatively extended. The soft airbag 10 and the flexible filler 20 therein are compressed only a little and the seating surface is in a relatively hard state, and the trunk of the human body is sunk into the seating surface to be shallow as shown in fig. 21. Therefore, the scheme of the embodiment provides the seat with different adjustable softness.

EXAMPLE six

On the basis of the fourth embodiment, a plurality of layers of soft inflatable bags 10 are overlapped in the hardness adjusting area of the seat, and the hardness adjusting area is an area where the soft inflatable bags 10 are arranged on the automobile seat 70; the present embodiment is illustrated with a two-layered soft airbag 10 as an example.

The two layers of soft inflatable bags 10 can be arranged in any one of the following modes:

1. adjacently stacked, as shown in fig. 22, one side of the seat foam structure 74 adjacent to the seat surface cover 75 is provided with three soft airbag accommodating grooves 76 for accommodating the soft airbags 10, and the number of the soft airbag accommodating grooves 76 is two upper soft airbag accommodating grooves 76-1 and one lower soft airbag accommodating groove 76-2 which are symmetrically arranged; a first soft inflatable bag 13 and a second soft inflatable bag 14 are arranged in the two upper soft inflatable bag holding grooves 76-1 side by side; a third soft inflatable bag 15 is arranged in the lower soft inflatable bag holding groove 76-2; the first soft inflatable bag 13 and the second soft inflatable bag 14 control inflation and deflation at the same time, and a flexible gasket 77 is arranged between the first soft inflatable bag 13 and the seat surface sleeve 75 and between the second soft inflatable bag 14 and the seat surface sleeve 75, so that local tympanites occur around the height limiting structure 30 to generate a micro uneven state, and the flexible gasket 77 can compensate the state and improve the comfortable flatness of the seat surface; when only the first soft airbag 13 and the second soft airbag 14 located in the upper soft airbag housing groove 76-1 are inflated, or only the third soft airbag 15 is operated, a medium-hardness seat cushion hardness can be provided; when the first soft airbag 13, the second soft airbag 14 and the third soft airbag 15 are inflated simultaneously, the rigidity of the seat cushion with stronger rigidity can be provided; and when only the third soft airbag 15 works, the passenger does not directly contact the soft airbag, so that a certain buffer space is reserved between the third soft airbag 15 and the passenger for adjusting the hardness, and the comfort of hardness adjustment is further improved.

2. The two layers of soft airbags are overlapped at intervals, as shown in fig. 23, and are respectively positioned at one side close to the seat surface sleeve 75 and one side far away from the seat surface sleeve 75, and since the third soft airbag 15 positioned at the bottom is in direct contact with the supporting framework 78 of the seat 70, in order to protect the third soft airbag 15, a flexible gasket 77 is further arranged between the third soft airbag 15 and the supporting framework 78. Of course, if the third soft airbag 15 is made of a stronger bag body material, as shown in fig. 24, the bottom thereof may not be provided with the flexible cushion 77.

The covering member 90 and the flexible pad 77 may be made of the same material, and may be made of a flexible material such as a nonwoven fabric, a nonwoven felt, a foam, or a sponge pad.

EXAMPLE seven

In this embodiment, on the basis of the fifth embodiment, as shown in fig. 25, the foam structure 74 is further provided with a covering body accommodating groove 79 at one side of the soft airbag accommodating groove 76 close to the seat cover 75 for accommodating a covering body 90; the covering body accommodating groove 79 and the soft airbag accommodating groove 76 are in a trapezoidal structure; when the soft airbag 10 is inflated, local tympanites appear around the height limiting structure 30, a tiny uneven state is generated, and the covering body 90 can make up for the state, so that the comfortable flatness of the seat surface is improved.

The covering body receiving slot 79 is wider than the soft airbag receiving slot 76 to substantially cover the edges of the soft airbag and protect the soft airbag 10.

Example eight

In this embodiment, on the basis of the fourth embodiment, the structure of the soft airbag is replaced with the structure of the soft airbag in the third embodiment, at this time, a heating cushion 100 is further disposed between the soft airbag 10 and the seat cover 75, the vehicle seat has a ventilation structure, the ventilation structure includes a wind guide structure 110 disposed at the bottom of the vehicle seat 70, a ventilation duct 74-1 is disposed in the foam structure 74, and an air flow guided out by the wind guide structure 110 flows out from the ventilation duct 74-1 and then flows to the side of the seat where the seat cover 75 is disposed through the wind guide duct 12 of the soft airbag 10.

As shown in fig. 26 to 28, the seat 70 provided in the present embodiment integrates the functions of heating, ventilation and hardness adjustment, and the backrest 71 and the seat cushion 72 of the seat 70 are provided with a heating pad 100; the functions are richer; the arrangement of the ventilation holes 70-1 can be increased according to the needs, and when the ventilation, hardness adjustment and heating functions are provided, the base material of the heating pad is preferably a base material with good air permeability, or the heating pad is opened. Heating, ventilation and soft or hard degree are adjusted and can be integrated on a control module and control the regulation, reduce cost.

Preferably, as shown in fig. 28, the hardness-softness adjustment in this embodiment may also be implemented by a multi-layer adjustment manner. In this embodiment, it can be seen that, in order to match with a seat having a ventilation structure, a plurality of soft airbags 10 arranged at intervals in the same layer may also be adopted, and a ventilation duct 74-1 leading to the seat cover 75 is formed on the foam structure 74 between the soft airbags 10; a ventilation hole 74-1 is reserved between the first soft inflatable bag 13 and the second soft inflatable bag 14 which are arranged side by side at the upper part, and between the third soft inflatable bag 15 and the fourth soft inflatable bag 16 which are arranged side by side at the lower part; as can be seen from the enlarged view of the part a in the figure, when the soft airbag is inflated, the periphery of the height limiting structure 30 can be locally inflated, and the flexible pad 77 can just compensate the state, so that the comfortable flatness of the seat surface is improved.

Preferably, as shown in fig. 29, the car seat in this embodiment may also be provided with a cover body preformed groove 79 above the soft airbag preformed groove 76 for placing the covering body 90.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A seat comfort adjustment device, characterized in that it comprises at least one soft airbag (10) that can be integrated in the seat; the soft inflatable bag (10) is filled with flexible filler (20); the soft inflatable bag (10) is filled with gas; a height limiting structure (30) used for limiting the local expansion height of the soft inflatable bag during inflation is arranged in the soft inflatable bag (10); the soft inflatable bag (10) is also connected with a damping mechanism (120) through a connecting pipeline (13) and used for releasing the pressure in the soft inflatable bag (10) when the soft inflatable bag (10) is subjected to sudden-change extrusion force.

2. The seat comfort adjustment device according to claim 1, characterized in that the soft airbag (10) is connected with at least one air path (11) and an air source (50) for inflating the soft airbag (10) through the air path (11); the soft inflatable bag (10) is inflated or exhausted through the air passage (11) to adjust the hardness of the surface of the seat.

3. The seat comfort adjustment device according to claim 1 or 2, characterized in that the shock-absorbing mechanism (120) comprises at least one elastic sealing capsule (121); the connecting pipeline (13) is used for communicating the cavity of the sealing bag (121) with the cavity of the soft inflatable bag (10).

4. The seat comfort adjustment device according to claim 1 or 2, characterized in that the shock absorbing mechanism (120) comprises a cylinder (122); the cylinder (122) has a first cavity (123) and a second cavity (124); the connecting pipeline (13) is used for communicating the cavity of the soft inflatable bag (10) with the first cavity (123); the extending end of a piston (125) of the cylinder (122) is fixedly connected with one end of a return spring (126); the other end of the return spring (126) is connected with a fixed structure (127).

5. The seat comfort adjustment device according to claim 1 or 2, characterized by further comprising a flow adjustment mechanism (130) for adjusting the amount of flow in the connecting line (13).

6. The seat comfort adjustment device according to claim 5, characterized in that the flow regulation mechanism (130) comprises a clip (132) which is fitted over the connecting line (13); the clamp (132) comprises an annular part with an opening, and a first adjusting sheet (133) and a second adjusting sheet (134) extend outwards from two movable ends of the annular part in parallel; a threaded hole is formed in the first adjusting sheet (133), and a smooth through hole is formed in the second adjusting sheet (134) corresponding to the threaded hole; and a screw handle (135) which penetrates through the smooth through hole is fixed in the threaded hole in a threaded manner.

7. The seat comfort adjustment device of claim 6, further comprising a micro-motor; the output shaft of the micro motor is axially and fixedly connected with the handle screw rod (135); the micro motor is controlled to rotate forwards or backwards by the control module (60);

the control module (60) is further configured for: and controlling the micro motor to rotate according to the input signal of the input module so as to adjust the air flow of the connecting air pipe (13) to be larger or smaller.

8. The seat comfort adjustment device according to claims 1, 2, 6, 7, characterized in that the height-limiting structure (30) is a penetration-type height-limiting belt (31) and/or a built-in type height-limiting belt (32).

9. The seat comfort adjusting device according to any one of claims 1, 2, 6 and 7, wherein the soft inflatable bag (10) is provided with a plurality of air guide channels (12) penetrating through the bag body, and the air guide channels (12) are isolated from the cavity of the soft inflatable bag (10) and are used for conducting air on two sides of the soft inflatable bag (10).

10. A vehicle seat, characterized in that the backrest (71) and/or the seat cushion (72) and/or the side wings (73) of the vehicle seat (70) have integrated thereon a seat comfort adjustment device according to any one of claims 1 to 10, the air supply (50) being provided by a micro air pump or compressed air in the vehicle body.

11. The car seat according to claim 10, characterized in that the softness adjusting area of the car seat (70) is adjacently overlapped or alternately overlapped with at least two layers of the soft inflatable bags (10); the softness adjusting area is an area in which a soft inflatable bag (10) is arranged in the automobile seat (70); when the soft inflatable bag (10) is positioned on the surface of the foam structure (74) of the automobile seat (70), a flexible liner (77) is paved outside the soft inflatable bag (10) positioned on the surface.

12. The comfort-adjustable vehicle seat according to claim 10 or 11, characterized in that the foam structure (74) of the vehicle seat (70) is provided with a soft airbag retaining groove (76) for receiving the soft airbag (10).

13. The comfort-adjustable car seat according to claim 12, wherein the open side of the soft airbag housing groove (76) is provided with a covering body housing groove (79) for housing a covering body (90); the cover body containing groove (79) and the soft inflatable bag containing groove (76) are in a trapezoidal structure.

14. The comfort-adjustable vehicle seat according to claim 10 or 11, characterized in that a heating mat (100) is provided between the foam structure (74) and the seat shell (75) of the vehicle seat (70).