Automobile seat ventilation structure with hardness adjusting function

Abstract

The invention provides an automobile seat ventilation structure with a hardness adjusting function, and a hardness-adjustable ventilation wind bag comprises a wind bag body, a first air bag, a second air bag and a ventilation device, a plurality of first ventilation holes communicated with the first space are formed in one side of the wind bag body; the hardness adjusting body is arranged in the first space, the hardness adjusting body is provided with a second space and a plurality of adjusting parts, the adjusting parts are communicated with the second space, and the adjusting parts can be deformed by adjusting the pressure in the second space; the ventilation device communicates with the first space and is used for enabling airflow in the first space to flow; the pressure adjusting assembly communicates with the second space and is used for adjusting the pressure in the second space; according to the ventilation air bag with the adjustable hardness, the ventilation function and the hardness adjusting function of the seat can be achieved, the first space in the air bag body is fully utilized, and the space utilization rate of the automobile seat is increased.

Description

Technical Field

[0001] The present application relates to the technical field of automotive seat accessories, and particularly relates to an automotive seat ventilation structure with a softness and hardness adjustment function. Background Art

[0002] In recent years, with the rapid development and popularization of the automotive field, people's requirements for vehicle ride comfort have become increasingly high. In order to improve the comfort of automotive seat occupancy, ventilation bags and softness and hardness adjustment pads are provided inside the automotive seat.

[0003] The function of the ventilation bag is to provide a ventilation function for the seat through a ventilation device, which helps to adjust the seat temperature, relieve the discomfort caused by long-term sitting, and can also reduce the temperature of the seat surface in hot weather, improving the riding comfort. The ventilation bag circulates air to make the temperature of the seat surface more pleasant; the function of the softness and hardness adjustment pad is to adjust the hardness or softness of the seat to meet the personal preferences and comfort needs of the driver or passenger. These adjustment pads can be placed above or below the seat, and by changing the support structure of the seat, the hardness feeling of the seat is affected. The role of the adjustment pad is to provide a certain degree of personalized adjustment, making the seat more in line with the user's experience and preferences, and improving the comfort of long-term driving or riding.

[0004] Due to the increased configuration for comfort, the layout space of automotive seats is becoming more and more limited. Most of the space is occupied by mechanical structure components, and the layout space is greatly restricted. How to meet the increased configuration for comfort and improve the space utilization rate of automotive seats is an urgent problem to be solved at present. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an automotive seat ventilation structure with a softness and hardness adjustment function.

[0006] The present invention provides an automotive seat ventilation structure with a softness and hardness adjustment function, including: An airbag body, the airbag body includes a air distribution layer and the sealing layer, the sealing layer and the edge of the air distribution layer are hermetically connected, and a first space is formed therebetween; A wind guiding part for guiding air flow is arranged in the first space, a plurality of first ventilation holes communicating with the first space are opened on the air distribution layer, and the air flow entering the first space passes through the air guiding layer and is discharged from the first ventilation holes; The wind guiding part includes a softness and hardness adjusting body, the softness and hardness adjusting body has a second space inside, the softness and hardness adjusting body has a plurality of adjusting parts, and a air duct is formed between the plurality of adjusting parts, and the air duct is used for guiding air flow; The interior of the adjusting part is in communication with the second space. By adjusting the pressure in the second space, the softness and hardness of the adjusting part are changed accordingly.

[0007] According to the technical solution provided by the present invention, a support body is further provided in the first space, and a plurality of support protrusions are provided on the support body.

[0008] According to the technical solution provided by the present invention, the air guiding part further includes an air guiding pressure-bearing layer, which is arranged between the softness and hardness adjusting body and the air distribution layer. The air guiding pressure-bearing part is used to support the air bag body and the softness and hardness adjusting body, and enable the gas to pass through the interior of the air guiding layer.

[0009] According to the technical solution provided by the present invention, a plurality of accommodation holes are formed in the air guiding layer, and the accommodation holes are used to accommodate the adjusting part and / or the support protrusions.

[0010] According to the technical solution provided by the present invention, the softness and hardness adjusting body and the support body are integrally formed; Or, the softness and hardness adjusting body and the support body are separately arranged and connected by a soft body therebetween.

[0011] According to the technical solution provided by the present invention, the softness and hardness adjusting body includes a softness and hardness adjusting film, the adjusting part is arranged on the softness and hardness adjusting film, the edge of the softness and hardness adjusting film is hermetically connected to the edge of the sealing layer, and a second space is formed between the softness and hardness adjusting film and the sealing layer.

[0012] According to the technical solution provided by the present invention, a plurality of softness and hardness adjusting bodies are provided in the first space.

[0013] According to the technical solution provided by the present invention, the plurality of softness and hardness adjusting bodies are stacked along the thickness direction of the air bag body, and a first support plate is arranged between two adjacent softness and hardness adjusting bodies.

[0014] According to the technical solution provided by the present invention, a plurality of second ventilation holes are formed in the first support plate, and a plurality of third ventilation holes are formed in the softness and hardness adjusting body; the third ventilation holes are arranged corresponding to the second ventilation holes.

[0015] According to the technical solution provided by the present invention, a first connection hole for connecting a ventilation device is formed in the sealing layer, a second connection hole corresponding to the first connection hole is formed in the softness and hardness adjusting body or the support body, and the ventilation device is connected to the first space through the first connection hole, the second connection hole, and is used to make the air flow in the first space; The softness and hardness adjuster is further connected with a pressure adjusting component. The pressure adjusting component and the second space are communicated through an air pipe and are used for adjusting the pressure in the second space.

[0016] Advantageous effects: Since the ventilation structure with the softness and hardness adjusting function provided by this application includes an air bag body, and a first space is formed inside the air bag body; a plurality of first ventilation holes communicating with the first space are formed on one side of the air bag body, and the air bag body is further communicated with a ventilation device. The ventilation device can make the air flow in the first space flow and be discharged from the first ventilation holes, so as to provide a ventilation function for the seat; Since a softness and hardness adjuster is arranged in the first space, the softness and hardness adjuster has a second space, the softness and hardness adjuster has a plurality of adjusting parts, the adjusting parts are communicated with the second space, and a pressure adjusting component is further communicated in the second space of the softness and hardness adjuster. The pressure in the second space can be adjusted through the pressure adjusting component, and then the adjusting parts are deformed to adjust the hardness or softness of the seat; it can be seen that this application can not only meet the integrated ventilation function and softness and hardness adjusting function of the seat, but also avoid the mutual influence between functions caused by the stacking of each independent structure, make full use of the first space in the air bag body, improve the space utilization rate of the vehicle seat, and at the same time reduce the number of parts and the thickness of the seat, which is convenient for the seat shape design and saves costs. Description of the drawings

[0017] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of this application will become more obvious: Figure 1 is the front view of the air bag body; Figure 2 is the perspective view of the air bag body; Figure 3 is the exploded view of the air bag body; Figure 4 is the exploded view of the air bag body installed with the first type of air guide layer; Figure 5 is the exploded view of the air bag body installed with the second type of air guide layer; Figure 6 is the front view of the softness and hardness adjuster; Figure 7 is the schematic diagram of the softness and hardness adjuster installed with an annular adapter; Figure 8 is the schematic diagram of the support body; Figure 9 is the exploded view of the air bag body with two softness and hardness adjusters; Figure 10is another schematic diagram of the hardness adjusting body; Figure 11 is a schematic diagram of a car seat; Figure 12 is a cross-sectional view of a car seat; Figure 13 It is a partial cross-sectional view of a car seat; In the figure: 1. Air bag body; 11. First ventilation hole; 12. Sealing layer; 121. First connecting hole; 13. Air bag membrane; 111. Welding bead; 2. Hardness adjustment body; 21. Adjustment part; 212. Second connecting hole; 22. Support body; 23. Third ventilation hole; 24. Soft body; 221. Support protrusion; 3. Ventilation device; 4. Pressure adjustment component; 41. Air path controller; 42. Air source; 5. Annular adapter; 6. Air guide layer; 61. Accommodating hole; 7. First support plate; 72. Second ventilation hole; 73. Third connecting hole; 8. Car seat; 81. Foam; 9. Breathable substrate; 10. Fourth ventilation hole. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] Figures 1 to 13 The direction of the arrows indicates the direction of gas movement.

[0021] This embodiment provides a vehicle seat ventilation structure with a softness and hardness adjustment function, comprising: Wind bag body 1, reference Figures 1 - 3 The air bag body 1 includes an air distribution layer 13 and a sealing layer 12, and the edges of the sealing layer 12 and the air distribution layer 13 are sealed and connected, and a first space is formed therebetween; The first space is provided with an air guide portion for guiding airflow, and the air distribution layer 13 is provided with a plurality of first ventilation holes 11 communicating with the first space, and the airflow entering the first space passes through the air guide layer and is discharged from the first ventilation holes 11; The air guide portion includes a hardness adjusting body 2, the hardness adjusting body 2 has a second space inside, the hardness adjusting body 2 has a plurality of adjusting parts 21, and there is an air duct between the plurality of adjusting parts 21, and the air duct is used to guide the airflow; The interior of the adjusting part 21 communicates with the second space. By adjusting the pressure in the second space, the softness and hardness of the adjusting part 21 can be changed accordingly.

[0022] Specifically, the air bag body 1 is formed by welding the edge of the air distribution layer 13 and the sealing layer 12. A number of first ventilation holes 11 are provided on the air distribution layer 13, and a first connection hole 121 for connecting the ventilation device 3 is provided on the sealing layer 12.

[0023] The softness and hardness adjusting body 2 is a bag body with an independent cavity located inside the air bag body. The internal air pressure thereof can be adjusted through the pressure adjusting assembly 4. A plurality of adjusting parts 21 are provided on the side thereof close to the air distribution layer 13. The plurality of adjusting parts 21 are arranged in an array. The adjusting part 21 is a plurality of protrusions provided on the side thereof close to the air distribution layer. The shape of the adjusting part 21 can be designed according to the actual situation, and its cross section can be in various shapes such as circular and rectangular.

[0024] During use, the air pressure in the second space can be increased through the pressure adjusting assembly 4 connected to the second space, and the adjusting part 21 will expand and bulge, forming a crisscross air duct therebetween.

[0025] Reference Figures 6 - 7 , a second connection hole 212 through which air can pass is provided on the softness and hardness adjusting body 2. When ventilation is required, the ventilation device 3 can be opened, so that the air flow blown out by the ventilation device 3 can pass through the air duct formed by the gaps between the adjusting parts 21 and be guided to each of the first ventilation holes 11.

[0026] Furthermore, with reference to Figure 8 , a support body 22 is further provided in the first space, and a plurality of support protrusions 221 are provided on the support body 22.

[0027] A plurality of the support protrusions 221 are provided on the side of the support body 22 close to the air distribution layer 13. The support protrusions 221 have a certain hardness and can provide a certain support for the air distribution layer 13, so that there is a gap between the support body 22 and the air distribution layer 13, which is convenient for air flow, improves the ventilation effect when the adjusting part 21 contracts, and at the same time provides a deformation space for the adjusting part 21 on the support body 22.

[0028] Furthermore, with reference to Figure 4 , the air guiding part further includes an air guiding pressure bearing layer 6. The air guiding pressure bearing layer is arranged between the softness and hardness adjusting body 2 and the air distribution layer 13. The air guiding pressure bearing part 6 is used to support the air bag body 1 and the softness and hardness adjusting body 2, and enables the gas to pass through the inside of the air guiding layer.

[0029] Specifically, the air guiding and pressure bearing part 6 is a structure with certain support and capable of guiding air flow. It is usually made of 3D spacer fabric, which has a number of woven meshes and a certain thickness, and has good air permeability and supportability.

[0030] The air guiding and pressure bearing part 6 can provide support for the air distribution layer 13 and further improve the uniformity of air flow, so that the ventilation function is not limited by the softness and hardness adjusting body 2. When the adjusting part 21 shrinks, the air guiding and pressure bearing part 6 can also ventilate stably. Of course, the air guiding and pressure bearing part 6 can be used alone without cooperating with the support body 22 to save costs, or can be used simultaneously with the support body 22 to ensure the stability of the ventilation effect.

[0031] Further, referring to Figure 5 , a plurality of receiving holes 61 are formed in the air guiding layer 6, and the receiving holes 61 are used to receive the adjusting part 21 and / or the support protrusion 221.

[0032] Thus, by forming the receiving holes 61 on the air guiding and pressure bearing part 6 that are adapted to the shape of the adjusting part 21 to avoid the adjusting part 21, the surface of the air bag body 1 can be made flatter, reducing the foreign body sensation when passengers are sitting.

[0033] Secondly, it can also achieve the supporting effect on the adjusting part 21, and can avoid the situation that the adjusting part 21 is difficult to inflate due to external pressure; it is convenient to control the air pressure of the adjusting part 21, and then it is convenient to accurately control the softness and hardness of the softness and hardness adjusting body 2. When the air guiding and pressure bearing part 6 and the support body 22 are used simultaneously, receiving holes 61 adapted to the shape of the support protrusion 221 can also be provided to avoid the support protrusion 221.

[0034] Further, the softness and hardness adjusting body 2 and the support body 22 are integrally formed; or, the softness and hardness adjusting body 2 and the support body 22 are separately provided and are connected by a soft body 24.

[0035] Specifically, when the integral form is adopted, the interior of the support body 22 is communicated with the second space inside the softness and hardness adjusting body 2, that is, the two are one bag body, and this form can save one process. At the same time, under the condition of good sealing, when the pressure in the softness and hardness adjusting body 2 increases, the support protrusion 221 on the support body 22 can also be further lifted to improve the adjustment effect; especially at the second connection hole 212, the softness and hardness adjusting body 2 should be welded or adhered firmly, and the air flow blown out by the ventilation device 3 should not be allowed to enter the second space, affecting the softness and hardness adjustment function.

[0036] If a split form is adopted, the support body 22 is a sheet structure made of a material with a certain hardness, and the second connection hole 212 can be arranged on the support body 22; the air flow blown out by the ventilation device 3 can be prevented from entering the second space, thereby affecting the softness and hardness adjustment function.

[0037] As Figure 8 shown, the softness and hardness adjustment body 2 and the support body 22 can be connected through a soft body 24. The soft body 24 has a certain viscosity, such as a glue film, to prevent relative movement between the softness and hardness adjustment body 2 and the support body 22. The shape of the glue film can be set according to the actual situation, and can match the outer contours of the softness and hardness adjustment body 2 and the support body 22, or can be other shapes that can reliably fix the two. Of course, other connection methods such as welding can also be adopted, and the present application does not make limitations here.

[0038] Specifically, the integrated or split structure can be respectively applicable to different usage scenarios and can be freely selected according to requirements.

[0039] Further, the softness and hardness adjustment body 2 includes a softness and hardness adjustment film. The adjustment part 21 is arranged on the softness and hardness adjustment film. The edge of the softness and hardness adjustment film is hermetically connected to the edge of the sealing layer 12, and a second space is formed between the softness and hardness adjustment film and the sealing layer 12.

[0040] Specifically, the softness and hardness adjustment body 2 has a film-like structure with an adjustment body 21. Its edge is hermetically fixed to the edge of the sealing layer 12 by welding or bonding, etc., to form a second space, so as to further save costs. Of course, the softness and hardness adjustment film also needs to be provided with connection holes for connecting the ventilation device 3, and around the connection holes, the softness and hardness adjustment film and the sealing layer 12 also need to be welded or bonded to prevent the air flow of the ventilation device 3 from blowing into the second space and affecting the softness and hardness adjustment function.

[0041] Further, referring to Figure 9 , a plurality of softness and hardness adjustment bodies 2 are arranged in the first space.

[0042] The plurality of softness and hardness adjustment bodies 2 are stacked along the thickness direction of the airbag body 1, and a first support plate 7 is arranged between two adjacent softness and hardness adjustment bodies 2.

[0043] Specifically, in the airbag body 1, a plurality of softness and hardness adjustment bodies 2 are stacked along its thickness direction. The internal pressure of each softness and hardness adjustment body 2 can be independently adjusted, and passengers can control and adjust the internal pressure of different softness and hardness adjustment bodies 2 according to their own needs to achieve a multi-gear softness and hardness adjustment function.

[0044] The first support plate 7 is a rigid support plate disposed between two adjacent softness and hardness adjustment bag bodies 2. The first support plate 7 can be fixed to the two adjacent softness and hardness adjustment bodies 2 by means of welding or pasting, etc., for the purpose of providing support for the softness and hardness adjustment bodies 2 on both sides.

[0045] In addition, a plurality of softness and hardness adjustment bodies 2 can also be arranged in sequence along the length direction or width direction of the air bag body 1 to achieve independent adjustment of different regions of the seat. Herein, the present application does not make special limitations.

[0046] A plurality of ventilation holes are formed in the softness and hardness adjustment bag body and the hard support plate, for enabling the air flow of the blower to flow evenly to each ventilation hole.

[0047] Further, a plurality of second ventilation holes 72 are formed in the first support plate 7, and a plurality of third ventilation holes 23 are formed in the softness and hardness adjustment body 2; the third ventilation holes 23 are arranged corresponding to the second ventilation holes 72.

[0048] The above structural design facilitates the flow of air in the first space, enabling the air flow generated by the ventilation device 3 to blow more evenly towards the air distribution layer side, so as to improve the ventilation effect and stability.

[0049] The second ventilation holes 72 and the third ventilation holes 23 are arranged corresponding to each other for air circulation. A third connection hole 73 corresponding to the second connection hole 212 is formed in the first support plate 7, and the third connection hole 73 is used for connecting with the annular adapter 5.

[0050] The annular adapter 5 is used for connecting with the ventilation device 3 to fix the position of the ventilation device 3.

[0051] Specifically, the edge of the second connection hole 212 and the edge of the third ventilation hole 23 also need to seal the softness and hardness adjustment body 2. As Figure 9 and Figure 10 shown, by means of welding, a weld bead 111 is formed by welding to prevent the air flow generated by the ventilation device 3 from blowing into the second space and affecting the softness and hardness adjustment function. Specifically, high-frequency welding or ultrasonic welding can be adopted, or bonding and other methods can also be selected.

[0052] Further, a first connection hole 121 for connecting with the ventilation device 3 is formed in the sealing layer 12, and a second connection hole 212 corresponding to the first connection hole 121 is formed in the softness and hardness adjustment body 2 or the support body 22. The ventilation device 3 is communicated with the first space through the first connection hole 121, the second connection hole 212, for enabling the air flow in the first space to flow.

[0053] Specifically, the ventilation device 3 mainly includes a fan, and other devices can also be set according to actual situations, such as a ventilation pipe connecting the fan and the first connection hole 121, etc.

[0054] The softness and hardness adjusting body 2 is also connected with a pressure adjusting component 4. The pressure adjusting component 4 and the second space are connected and communicated through an air pipe, and are used to adjust the pressure in the second space.

[0055] Specifically, through the fan, the air outside the first space can pass through the annular adapter 5 and flow to the side of the softness and hardness adjusting body 2 close to the air distribution layer 13, and then be discharged from the first ventilation hole 11 to ventilate the seat surface.

[0056] It should be noted that when multiple softness and hardness adjusting bodies 2 are stacked in the airbag body 1, the fan can only be connected to the first connection hole 121 through the annular adapter 5. The second connection hole 212 on the softness and hardness adjusting body 2 and the third connection hole 73 on the first support plate 7 are only used as ventilation holes to prevent the fan from affecting the lifting of the adjusting body 21. Moreover, the air flow blown by the fan can also pass through the third ventilation hole 23 on the softness and hardness adjusting body 2 and the second ventilation hole 72 on the first support plate 7 and be blown to the side of the air distribution layer 13, making the ventilation effect more uniform.

[0057] Specifically, the pressure adjusting component 4 includes an air path controller 41. The input end of the air path controller 41 is connected and communicated with an air source 42, and the output end is connected and communicated with the second space through an air pipe.

[0058] The air source 42 is an air pump for inflating the second space. Control devices such as solenoid valves can be set on the air path controller 41, and the number of solenoid valves can be multiple to realize the control of the internal pressure of multiple softness and hardness adjusting bodies 2. By controlling the gas volume in the second space through the air path controller 41, functions such as inflation, deflation, or pressure maintenance of the softness and hardness adjusting body 2 can be realized, and then the deformation amount of the adjusting part 21 can be adjusted to realize the adjustment of the softness or hardness of the vehicle seat 8.

[0059] Specifically, refer to Figures 11 - 13 , which is a schematic diagram of the airbag body 1 arranged on the seat cushion; it can also be arranged at the backrest position, or at both positions simultaneously.

[0060] The vehicle seat ventilation structure with softness and hardness adjustment function can be installed on the A side of the vehicle seat 8 foam 81, that is, the side of the vehicle seat 8 foam 81 close to the human body.

[0061] A breathable substrate 9 covering the air bag body 1 is provided on the car seat 8. The breathable substrate 9 is used to form a seat cover, and the upper surface of the seat cover forms the bearing surface of the car seat. At this time, a mounting groove needs to be provided on the foam 81 to accommodate the ventilation device 3, which can be a fan, and a ventilation pipe connecting the fan and the first space, so that the airflow blown out from the ventilation component 3 can pass through the air bag body 1 and the breathable substrate 9 in sequence and blow to the seat surface.

[0062] Specifically, the automobile seat ventilation structure with a softness and hardness adjustment function provided by the present invention can also be installed on the B side of the foam 81 of the automobile seat 8, that is, the side of the foam 81 of the automobile seat 8 away from the human body.

[0063] Furthermore, the foam 81 of the car seat 8 is provided with a plurality of fourth ventilation holes 10 in a direction perpendicular to the ventilation structure of the car seat with hardness adjustment function, and the fourth ventilation holes 10 correspond to the first ventilation holes 11, so that the gas flowing out from the hardness adjustment ventilation bag can flow from the fourth ventilation holes 10 to the surface of the car seat 8.

[0064] Working principle: The automobile seat ventilation structure with a softness and hardness adjustment function provided by the present application comprises an air bag body 1, wherein the air bag body 1 has a first space; a plurality of first ventilation holes 11 communicating with the first space are opened on one side of the air bag body 1, and the air bag body 1 is also connected with a ventilation device 3, wherein the ventilation device 3 can make the air flow in the first space flow and be guided out from the first ventilation holes 11, thereby providing a ventilation function for the seat; Since a hardness adjusting body 2 is provided in the first space, the hardness adjusting body 2 has a second space, the hardness adjusting body 2 has a plurality of adjusting parts 21, the adjusting parts 21 are connected to the second space, and the second space of the hardness adjusting body 2 is also connected to a pressure adjusting component 4, the pressure in the second space can be adjusted by the pressure adjusting component 4, and then the adjusting part 21 is deformed to adjust the hardness or softness of the seat.

[0065] The present application integrates ventilation function and hardness adjustment function through an integrated design, and can also avoid mutual influence between functions caused by the stacking of independent structures. It also makes full use of the first space in the air bag body 1, improves the space utilization rate of the car seat 8, and at the same time reduces the number of parts and seat thickness, facilitates the seat shape design, and can also save costs.

[0066] It should be noted that in the above embodiments, a blowing type fan is used as an example to describe the airflow direction during ventilation in this application. In other embodiments, a suction type fan may also be used, and its airflow direction is opposite to that of the blowing type fan. This application does not make any specific limitations on this.

[0067] The above description is only a preferred embodiment of the present application and an explanation of the technical principles applied. 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 technical features (but not limited to) disclosed in the present application that have similar functions.

Claims

1. An automotive seat ventilation structure with a softness and hardness adjustment function, characterized in that, Comprising: An air bag body (1), the air bag body (1) includes an air distribution layer (13) and the sealing layer (12), the edge of the sealing layer (12) and the air distribution layer (13) is hermetically connected, and a first space is formed therebetween; A wind guiding part for guiding air flow is arranged in the first space, a plurality of first ventilation holes (11) communicating with the first space are formed on the air distribution layer (13), and the air flow entering the first space passes through the air guiding layer and is discharged through the first ventilation holes (11); The wind guiding part includes a softness and hardness adjusting body (2), the softness and hardness adjusting body (2) has a second space inside, the softness and hardness adjusting body (2) has a plurality of adjusting parts (21), and an air duct is provided between the plurality of adjusting parts (21), and the air duct is used for guiding air flow; The inside of the adjusting part (21) communicates with the second space, and by adjusting the pressure in the second space, the softness and hardness of the adjusting part (21) are further changed.

2. The ventilation structure of an automotive seat with a softness and hardness adjustment function according to claim 1, characterized in that, A support body (22) is further arranged in the first space, and a plurality of support protrusions (221) are arranged on the support body (22).

3. The ventilation structure of an automotive seat with a softness and hardness adjustment function according to claim 1 or 2, characterized in that, The wind guiding part further includes a wind guiding pressure bearing layer (6), the wind guiding pressure bearing layer is arranged between the softness and hardness adjusting body (2) and the air distribution layer (13), and the wind guiding pressure bearing part (6) is used for supporting the air bag body (1) and the softness and hardness adjusting body (2), and enabling the gas to pass through the inside of the wind guiding layer.

4. The automotive seat ventilation structure with a softness and hardness adjustment function according to claim 3, characterized in that, A plurality of accommodation holes (61) are formed on the wind guiding layer (6), and the accommodation holes (61) are used for accommodating the adjusting part (21) and / or the support protrusion (221).

5. The automotive seat ventilation structure with a softness and hardness adjustment function according to claim 4, characterized in that, The softness and hardness adjusting body (2) and the support body (22) are integrally formed; Or, the softness and hardness adjusting body (2) and the support body (22) are separately arranged, and are connected by a soft body (24) therebetween.

6. The ventilation structure of an automotive seat with a softness and hardness adjustment function according to claim 1, wherein, The softness and hardness adjusting body (2) includes a softness and hardness adjusting film, the adjusting part (21) is arranged on the softness and hardness adjusting film, the edge of the softness and hardness adjusting film is hermetically connected with the edge of the sealing layer (12), and a second space is formed between the softness and hardness adjusting film and the sealing layer (12).

7. An automotive seat ventilation structure with a softness and hardness adjustment function according to claim 3, characterized in that, A plurality of softness and hardness adjusting bodies (2) are arranged in the first space.

8. The automotive seat ventilation structure with a softness and hardness adjustment function according to claim 7, characterized in that, The plurality of softness and hardness adjusting bodies (2) are stacked along the thickness direction of the air bag body (1), and a first support plate (7) is arranged between two adjacent softness and hardness adjusting bodies (2).

9. The automotive seat ventilation structure with a softness and hardness adjustment function according to claim 8, characterized in that, A plurality of second ventilation holes (72) are formed on the first support plate (7), and a plurality of third ventilation holes (23) are formed on the softness and hardness adjusting body (2); the third ventilation holes (23) are arranged corresponding to the second ventilation holes (72).

10. The ventilation structure of an automotive seat with a softness and hardness adjustment function according to claim 3, characterized in that, A first connection hole (121) for communicating with a ventilation device (3) is formed on the sealing layer (12), a second connection hole (212) corresponding to the first connection hole (121) is formed on the softness and hardness adjusting body (2) or the support body (22), and the ventilation device (3) is connected to the first space through the first connection hole (121), the second connection hole (212) for enabling the air flow in the first space to flow; The softness and hardness adjusting body (2) is further connected with a pressure adjusting component (4). The pressure adjusting component (4) and the second space are communicated through an air pipe, and are used for adjusting the pressure in the second space.

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