Bladder and pneumatic massage and lumbar support system assembly for a seat pneumatic system

Abstract

The application provides a capsule for a seat pneumatic system and a pneumatic massage and waist support system assembly, and relates to the technical field of automobile accessories. The capsule for the seat pneumatic system, the outer surface of the side area of the capsule is provided with a pile layer 100 of velvet filaments, the pile layer 100 of velvet filaments comprises an adhesive layer and a velvet filament layer; the adhesive layer is attached to the surface of the capsule, and the velvet filaments in the velvet filament layer are embedded in the adhesive layer and form a flexible cushioning surface on the surface of the adhesive layer. The capsule for the seat pneumatic system and the pneumatic massage and waist support system assembly provided by the application solve the technical problem of abnormal sound generated by the seat system in the prior art.

Description

Technical Field

[0001] This invention relates to the field of automotive parts, and more specifically, to a bladder for a seat pneumatic system and a pneumatic massage and lumbar support system assembly. Background Technology

[0002] As passenger vehicle comfort requirements continue to rise, the quietness of the seating system has become an important indicator of overall vehicle quality. As a key feature for enhancing ride comfort, a seat pneumatic massage system typically includes components such as lumbar support airbags, massage airbags, air hoses, and support parts.

[0003] During operation, these airbags apply massage pressure to the back and waist of the user by inflating. However, during expansion, contraction, and relative movement of components, the surface of the airbags can easily rub against or collide with the seat frame, backrest, adjacent airbags, or other supporting components, producing unpleasant noises. Simultaneously, high-speed airflow within the airbags and tubing also generates aerodynamic noise. These noise issues are particularly noticeable when the vehicle is stationary or traveling at low speeds, directly impacting the user's riding experience. Summary of the Invention

[0004] The purpose of this invention is to provide a bladder and pneumatic massage and lumbar support system assembly for a seat pneumatic system, so as to alleviate the technical problem of abnormal noise in the prior art seat system.

[0005] The present invention provides a bladder for a seat pneumatic system, wherein the outer surface of the side region of the bladder has a filament stacking layer, the filament stacking layer including an adhesive layer and a filament layer; the adhesive layer is attached to the surface of the bladder, and the filaments in the filament layer are embedded in the adhesive layer and form a flexible buffer surface on the surface of the adhesive layer.

[0006] In some embodiments of the present invention, at least a portion of the side regions of the capsule are made of polyester film material, and the velvet stack layer is formed on its surface; and / or, at least a portion of the side regions of the capsule are made of thermoplastic polyurethane material, and the velvet stack layer is formed on its surface.

[0007] In some embodiments of the present invention, the capsule includes a flocked area and an unflocked area, wherein the flocked area is covered with the flocked stack layer, and the unflocked area is a welding area.

[0008] In some embodiments of the present invention, the filaments in the filament layer are attached to the adhesive layer by electrostatic adsorption.

[0009] In some embodiments of the present invention, the adhesive material is adhered to the capsule by spraying to form the adhesive layer; and / or, the adhesive material is adhered to the capsule by coating to form the adhesive layer; and / or, the adhesive material is adhered to the capsule by electrostatic adsorption to form the adhesive layer.

[0010] In some embodiments of the present invention, the flocking layer is a flocking layer composed of short fibers.

[0011] In some embodiments of the present invention, the filament layer is a flexible fiber powder or an elastic plastic powder.

[0012] In some embodiments of the present invention, the length of the filaments in the filament layer is 0.03mm-5mm.

[0013] In some embodiments of the present invention, the adhesive layer is an environmentally friendly adhesive layer.

[0014] In some embodiments of the present invention, the thickness of the adhesive layer is 0.1 mm to 0.4 mm.

[0015] In some embodiments of the present invention, the bladder is a massage air bag, a lumbar support air bag, or a connecting air tube.

[0016] In some embodiments of the present invention, the capsule is a multi-level bag structure, and the powder accumulation layer is formed on the top surface of the top layer air bag, and / or the bottom surface of the bottom layer air bag, and / or the opposite surfaces of each level of air bag.

[0017] The present invention also provides a pneumatic massage and lumbar support system component, including a bladder and a friction object. At least one side surface of the bladder is formed with a filament stack layer, the filament stack layer including an adhesive layer and a filament layer attached to the adhesive layer by electrostatic adsorption. The friction object is disposed opposite to the bladder and has a tendency to contact or move relative to the bladder in the working state. The bladder forms a flexible contact with the friction object through the filament stack layer to buffer the friction and collision between the two.

[0018] In some embodiments of the present invention, the object to be rubbed is another bladder, an airbag support component, a lumbar support back panel, or a seat cover.

[0019] In some embodiments of the present invention, the pneumatic massage and lumbar support system assembly further includes an air tube communicating with the bladder, the outer surface of which is formed with the filament stack layer to prevent frictional noise between the air tube and the bladder, adjacent air tubes, or the object being rubbed.

[0020] The beneficial effects of this invention are: The present invention relates to a pneumatic seat system bladder and a pneumatic massage and lumbar support system assembly. By providing a filament stack layer on the outer surface of the side region of the bladder, and the filament stack layer including an adhesive layer attached to the bladder surface and a filament layer at least partially embedded within the adhesive layer, the filaments form a flexible buffer surface on the adhesive layer surface. Since the filaments are at least partially embedded within the adhesive layer, a mechanical interlocking structure is formed between the filaments and the adhesive layer, significantly improving the bonding strength between the filament stack layer and the bladder surface, effectively preventing the filaments from falling off or peeling during long-term inflation and deflation. Simultaneously, when the bladder contacts an external object being rubbed or there is a tendency for relative movement, the flexible buffer surface can replace the hard contact between the bladder surface and the object being rubbed, utilizing the elastic deformation characteristics of the filaments to absorb impact energy and reduce the coefficient of friction of the contact surface, thereby effectively buffering friction and collision between the two, significantly reducing abnormal noises caused by friction and vibration, and reducing wear on the bladder surface. While ensuring the normal inflation and expansion function of the bladder, this improves seating comfort and the service life of the bladder. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the bladder used in the seat pneumatic system of the present invention; Figure 2 yes Figure 1 A magnified view of a section at point M; Figure 3 This is a schematic diagram of the pressure-bearing state of the bladder body used in the seat pneumatic system of the present invention; Figure 4 This is a schematic diagram of the lumbar support air bag and back panel assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the lumbar support airbag component of the present invention; Figure 6 This is a schematic diagram of the lumbar support airbag of the present invention in one of its working states; Figure 7 This is a schematic diagram of the lumbar support airbag of the present invention in one of its working states; Figure 8 This is a schematic diagram of the lumbar support airbag of the present invention in one of its working states; Figure 9 This is a schematic diagram of the lumbar support air bag and massage air bag assembly of the present invention; Figure 10yes Figure 9 Cross-sectional view at point AA; Figure 11 This is a schematic diagram of the structure of the massage air bag of the present invention; Figure 12 This is a schematic diagram of the structure of the massage air bag and air tube of the present invention.

[0023] icon: 100 - Filament stacking layer; 110 - Adhesion layer; 120 - Filament layer; 200-cysts; 300 - Airbag support component; 400 - Seat Covering; 600-lumbar support and backrest; 700-trachea; 800-Massage Airbag; 900-lumbar support air bag. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] In the description of this invention, it should be noted that the terms "inner," "outer," "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only used for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] like Figures 1 to 12As shown, the present invention provides a bladder 200 for a seat pneumatic system. The outer surface of the side region of the bladder 200 has a filament stack layer 100. The filament stack layer 100 includes an adhesive layer 110 and a filament layer 120. The adhesive layer 110 is attached to the surface of the bladder 200. The filaments in the filament layer 120 are at least partially embedded in the adhesive layer 110 and form a flexible buffer surface on the surface of the adhesive layer 110.

[0028] The pneumatic bladder 200 for a seat of the present invention comprises a filament stacked layer 100 formed on the outer surface of the side region of the pneumatic bladder 200. The filament stacked layer 100 includes an adhesive layer 110 attached to the surface of the pneumatic bladder 200 and a filament layer 120 at least partially embedded within the adhesive layer 110, thereby forming a flexible buffer surface on the adhesive layer 110. Since the filaments are at least partially embedded within the adhesive layer 110, a mechanical interlocking structure is formed between the filaments and the adhesive layer 110, significantly improving the bonding strength between the filament stacked layer 100 and the surface of the pneumatic bladder 200, and effectively preventing the filaments from fraying over time. During the inflation and deflation process, the bladder may detach or peel off. At the same time, when the bladder 200 comes into contact with an external object being rubbed or there is a tendency for relative movement, the flexible buffer surface can replace the hard contact between the surface of the bladder 200 and the object being rubbed. By utilizing the elastic deformation characteristics of the filaments, it absorbs impact energy and reduces the coefficient of friction of the contact surface, thereby effectively buffering the friction and collision between the two, significantly reducing abnormal noises caused by friction and vibration, and reducing wear on the surface of the bladder 200. While ensuring the normal inflation and expansion function of the bladder 200, it improves riding comfort and the service life of the bladder 200.

[0029] In some embodiments of the present invention, at least a portion of the side regions of the capsule 200 are made of polyester film, and a filament stack layer 100 is formed on its surface; and / or, at least a portion of the side regions of the capsule 200 are made of thermoplastic polyurethane, and a filament stack layer 100 is formed on its surface. By setting at least a portion of the side regions of the capsule 200 to be made of polyester film or thermoplastic polyurethane, and forming a filament stack layer 100 on its surface, the excellent flexibility, fatigue resistance, and airtightness of polyester film and thermoplastic polyurethane can meet the dynamic deformation requirements of the capsule 200 during repeated inflation and deflation. Furthermore, their surface physical properties facilitate the uniform coating of the adhesive layer 110 and the firm embedding of the filaments, thereby forming a stable, high-strength bond between the filament stack layer 100 and the substrate of the capsule 200. The flexible buffer surface of the bladder 200 is formed by the filaments embedded in the adhesive layer 110. When the bladder 200 comes into contact with an external object being rubbed or there is a tendency for relative movement, the flexible buffer surface can replace the hard contact. The elastic deformation of the filaments effectively absorbs the impact energy and reduces the coefficient of friction of the contact surface. Thus, while ensuring the airtightness and normal inflation function of the bladder 200, it significantly reduces the abnormal noise caused by friction and collision, and reduces the wear on the surface of the bladder 200, effectively improving the riding comfort and service life of the bladder 200.

[0030] In some embodiments of the present invention, the capsule 200 includes a flocked area and an unflocked area, wherein the flocked area is covered with a flocked accumulation layer and the unflocked area is a welding area. By dividing the surface of the capsule 200 into flocked and unflocked areas, the flocked areas are covered with a flocked layer to achieve buffering and noise reduction, while the unflocked areas are reserved as welding areas. Since the welding areas are not covered by the adhesive layer 110 and flocking fibers, the clean surface of the capsule 200 substrate is preserved, thus avoiding interference from the flocking layer on the welding process. This ensures that a strong and continuous weld can be formed at the edges or interfaces of the capsule 200 during the welding process, effectively preventing problems such as reduced welding strength, poor sealing, or air leakage caused by adhesive layer or flocking fiber residue. On this basis, the flocked areas are concentrated on the friction parts where the capsule 200 has contact with or tends to move relative to other components. The flocking fibers embedded in the adhesive layer 110 form a flexible buffer surface to replace hard contact and reduce friction noise. The unflocked areas are dedicated to the structural connection and sealing of the capsule 200. Thus, the capsule 200 achieves good noise reduction performance while maintaining complete airtightness and structural reliability, and extending its service life.

[0031] In some embodiments of the present invention, the filaments in the filament layer 120 are attached to the adhesion layer 110 by electrostatic adsorption. The electrostatic adsorption process allows the filaments in the filament layer 120 to adhere to the adhesion layer 110. Because electrostatic adsorption enables the charged filaments to be deposited directionally and uniformly on the surface of the adhesion layer 110 and embedded within it under the action of an electric field, a uniformly distributed and consistent filament accumulation layer 100 is formed. Compared to random spraying or simple coating, this process ensures omnidirectional coverage and stable adhesion of the filaments on the surface of the bladder 200. This allows the flexible buffer surface to uniformly disperse contact stress when the bladder 200 comes into contact with an external friction object, avoiding localized hard contact or stress concentration caused by uneven filament distribution. This effectively buffers friction and collision between the two, significantly reducing abnormal noise and localized wear on the surface of the bladder 200, improving riding comfort and the service life of the bladder 200.

[0032] In some embodiments of the present invention, the adhesive material is adhered to the capsule 200 by spraying to form an adhesive layer 110; and / or, the adhesive material is adhered to the capsule 200 by coating to form an adhesive layer 110; and / or, the adhesive material is adhered to the capsule 200 by electrostatic adsorption to form an adhesive layer 110. Adhering the adhesive material to the capsule 200 by spraying, coating, or electrostatic adsorption to form the adhesive layer 110 has several advantages. Spraying allows for rapid and uniform atomized coating, making it suitable for efficient production of large-area or complex curved capsules 200. Coating facilitates precise control of the adhesive layer thickness and coating position, making it suitable for localized spot application or areas requiring high coating precision. Electrostatic adsorption utilizes an electric field to orient adhesive particles onto the surface of the capsule 200, making it particularly suitable for uniform coverage of irregular structures or deeply recessed areas. The flexible selection or combination of these various processes allows the adhesive layer 110 to be customized according to the specific material of the capsule 200. The shape and usage scenarios are adapted to ensure that the adhesion layer 110 and the surface of the bladder 200 form a uniform and firm bond, thereby providing a stable base for the reliable embedding of the filaments. On this basis, the filaments embedded in the adhesion layer 110 form a flexible buffer surface on the surface of the bladder 200. When the bladder 200 comes into contact with an external object being rubbed, this flexible buffer surface can replace the hard contact, using the elastic deformation of the filaments to absorb impact energy and reduce the coefficient of friction, effectively buffering the friction and collision between the two, significantly reducing abnormal noise and reducing the wear of the bladder 200. While ensuring the normal inflation and expansion function of the bladder 200, it improves the riding comfort and service life of the bladder 200.

[0033] In some embodiments of the present invention, the flocked layer 120 is a flocked layer composed of short flock fibers. Due to the physical properties of the short flock fibers, such as being long and soft, having a large specific surface area and good elastic recovery, they can form a dense and uniform flock array structure on the surface of the adhesion layer 110. The short flock fibers are embedded inside the adhesion layer 110, so that the flocked layer and the surface of the bladder 200 form a firm mechanical fit. When the bladder 200 comes into contact with an external object being rubbed or there is a tendency for relative movement, the short fibers in the flock array structure can produce multi-directional elastic deformation, effectively absorbing contact impact energy and reducing the coefficient of friction of the contact surface, thereby replacing hard contact, significantly buffering the friction and collision between the two, and reducing abnormal noise caused by friction and vibration. At the same time, the dense flock array can uniformly disperse contact stress, avoid local wear on the surface of the bladder 200, and improve riding comfort and the service life of the bladder 200 while ensuring the normal inflation and expansion function of the bladder 200.

[0034] In some embodiments of the present invention, the filament layer 120 is a flexible fiber powder or an elastic plastic powder. By setting the filament layer 120 as a flexible fiber powder or an elastic plastic powder, since the flexible fiber powder and the elastic plastic powder have excellent softness, elastic recovery ability and wear resistance, after being embedded in the adhesion layer 110 and cured, they can form a buffer interface with both flexibility and toughness on the surface of the bladder 200. When the bladder 200 comes into contact with an external object being rubbed or there is a tendency for relative movement, the flexible fiber powder or the elastic plastic powder in the buffer interface can undergo elastic deformation, effectively absorbing the contact impact energy and reducing the coefficient of friction of the contact surface, thereby replacing the hard contact between the surface of the bladder 200 and the object being rubbed, significantly buffering the friction and collision between the two, and reducing abnormal noise caused by friction and vibration; at the same time, the wear resistance of the elastic plastic powder or the flexible fiber powder can reduce the wear on the surface of the bladder 200, improving the riding comfort and service life of the bladder 200 while ensuring the normal inflation and expansion function of the bladder 200.

[0035] In some embodiments of the present invention, the length of the filaments in the filament layer 120 is 0.03mm-5mm. Controlling the length of the filaments in the filament layer 120 to 0.03mm-5mm provides suitable flexibility and support. When the filament length is less than 0.03mm, the filaments are too short, resulting in insufficient cushioning stroke and making it difficult to form an effective flexible isolation layer between the bladder 200 and the object being rubbed, significantly reducing noise reduction and impact resistance. When the filament length is greater than 5mm, the filaments are too long and are prone to collapsing, tangling, or falling off under repeated compression, and will excessively increase the surface thickness of the bladder 200, affecting the normal inflation and expansion of the bladder 200 and its position within the seat. The assembly space of the part; and the length of the filaments is limited to the range of 0.03mm-5mm, so that the filaments can form a stable and upright flexible buffer array on the surface of the adhesion layer 110. This ensures sufficient elastic deformation space to absorb impact energy and reduce the coefficient of friction, while avoiding the collapse or assembly interference caused by excessively long filaments. This ensures that the bladder 200 can replace hard contact with this flexible buffer array during dynamic operation, effectively buffering the friction and collision between the two, significantly reducing abnormal noise and reducing wear on the surface of the bladder 200. Under the premise of ensuring the normal inflation and expansion function of the bladder 200 and the assembly adaptability, the riding comfort and service life of the bladder 200 are improved.

[0036] In some embodiments of the present invention, the adhesion layer 110 is an environmentally friendly adhesive layer. By setting the adhesion layer 110 as an environmentally friendly adhesive layer, the low volatile organic compound content and non-toxic and harmless properties of environmentally friendly adhesives effectively prevent the corrosion or swelling of the capsule 200 substrate by harmful substances in traditional adhesives when the adhesion layer 110 is formed on the surface of the capsule 200, thereby maintaining the original mechanical properties and airtightness of the capsule 200 substrate. Simultaneously, in the enclosed cabin environment of a passenger vehicle, the environmentally friendly adhesive layer can significantly reduce the release of harmful gases, meeting the environmental and safety standards for vehicle interior materials. Furthermore, the environmentally friendly adhesive layer has good coating properties. The uniformity and bonding strength of the coating provide a stable and reliable substrate for the embedding of the filaments, enabling the filaments to form a firm and flexible buffer surface on the surface of the bladder 200. When the bladder 200 comes into contact with an external object being rubbed, this flexible buffer surface can replace the hard contact, using the elastic deformation of the filaments to absorb impact energy and reduce the coefficient of friction, effectively buffering the friction and collision between the two, significantly reducing abnormal noise and reducing wear on the bladder 200. While ensuring the normal inflation and expansion function of the bladder 200, environmental safety, and passenger health, it improves passenger comfort and the service life of the bladder 200.

[0037] In some embodiments of the present invention, the thickness of the adhesive layer 110 is 0.1mm-0.4mm. By controlling the thickness of the adhesive layer 110 to be within the range of 0.1mm-0.4mm, the adhesive layer 110 within this thickness range can form a uniform and sufficient adhesive film coverage on the surface of the capsule 200. When the thickness is less than 0.1mm, the adhesive layer is too thin, resulting in insufficient wrapping and embedding of the filaments, and the bonding strength between the filaments and the surface of the capsule 200 is significantly reduced, making it easy to fall off under repeated squeezing and friction. When the thickness is greater than 0.4mm, the adhesive layer is too thick, which significantly increases the rigidity and overall thickness of the side area of ​​the capsule 200, restricting the free deformation of the capsule 200 during inflation and affecting the normal function of the massage. This approach avoids the problems of excessive material waste and weight gain associated with traditional methods. By limiting the thickness of the adhesive layer 110 to the range of 0.1mm-0.4mm, the adhesive layer 110 provides sufficient embedding space and strong anchoring force for the filaments, forming a stable and reliable flexible buffer surface. This also avoids significantly restricting the softness and inflation characteristics of the bladder 200. As a result, the bladder 200 can effectively buffer friction and collision between the bladder 200 and the object being rubbed during dynamic operation by replacing hard contact with this flexible buffer surface. This significantly reduces abnormal noise and wear of the bladder 200. Under the premise of ensuring the normal inflation function of the bladder 200 and lightweight structure, the ride comfort and service life of the bladder 200 are improved.

[0038] In some embodiments of the present invention, the bladder 200 is a massage airbag 800, a lumbar support airbag 900, or a connecting air tube 700. A velvet accumulation layer 100 is formed on the outer surface of the side region of these three types of bladders 200. Because the massage airbag 800 undergoes repeated contact and compression between its multi-stage bag structure during inflation, the lumbar support airbag 900 moves relative to the backrest assembly or adjacent airbags during operation, and the connecting air tube 700 is at risk of collision and wear with other airbags or support components in the system layout, all three types of bladders 200 are key functional components that generate frictional noise in the seat pneumatic massage system. For the massage airbag 800, the velvet accumulation layer 100 forms a flexible buffer surface on the opposing surfaces of its multi-stage bags, changing the contact between airbags from a hard contact to a flexible contact between velvet fibers, thereby absorbing impact and reducing the coefficient of friction. For the lumbar support airbag 900, the velvet stacked layer 100 forms a flexible isolation layer on its surface opposite to the back panel or seat cover layer 400, buffering the friction and collision when the lumbar support airbag 900 expands and contracts; for the connecting air tube 700, the velvet stacked layer 100 forms a flexible covering layer on its outer surface, reducing the collision noise between the air tube 700 and surrounding components; and by specifically setting the velvet stacked layer 100 on different functional bladders 200 of the seat pneumatic massage system, the system achieves full-dimensional and multi-level noise reduction protection, significantly reducing the overall operating noise of the system and improving riding comfort and the service life of the bladders 200 while ensuring the normal air supply and inflation function of various bladders 200.

[0039] like Figures 6 to 8 As shown, in some embodiments of the present invention, the bladder 200 is a multi-level bag structure, and the powder accumulation layer 100 is formed on the top surface of the top air bag, and / or the bottom surface of the bottom air bag, and / or the relative surfaces of each level of air bag. By setting the bladder 200 as a multi-level bag structure, and forming the powder accumulation layer 100 on the top surface of the top air bag, the bottom surface of the bottom air bag, and the relative surfaces of each level of air bag, during the inflation and expansion process of the multi-level bag structure, the top surface of the top air bag is prone to contact friction with the seat cover layer 400 or external support components, and the bottom surface of the bottom air bag is prone to collision and compression with the back panel or air bag support component 300. The relative surfaces of each level of air bag experience mutual friction and relative movement during expansion and contraction. By covering the above-mentioned key contact surfaces with the powder accumulation layer 100, a flexible contact interface is formed between each level of air bag and between the air bag and external components, replacing the traditional hard interface. The powder accumulation layer 100 absorbs impact energy and reduces the coefficient of friction of the contact surface by utilizing the elastic deformation characteristics of the powder accumulation layer 100. The powder accumulation layer 100 on the top surface of the top airbag buffers the collision between the bladder 200 and the upper component, while the powder accumulation layer 100 on the bottom surface of the bottom airbag isolates the friction between the bladder 200 and the lower support. The powder accumulation layer 100 on the relative surfaces of the airbags at each level reduces the abnormal noise when the airbags are squeezed together. This achieves full-dimensional and multi-layered buffering and noise reduction protection of the multi-level bag structure. Under the premise of ensuring the normal inflation and massage function of the multi-level bag structure, it significantly reduces the overall operating noise of the system, improves riding comfort and the service life of the bladder 200.

[0040] like Figures 9 to 12As shown, the present invention also provides a pneumatic massage and lumbar support system component, which includes a bladder 200 and a friction object. At least one side surface of the bladder 200 is formed with a filament stack layer 100. The filament stack layer 100 includes an adhesive layer 110 and a filament layer 120 attached to the adhesive layer 110 by electrostatic adsorption. The friction object is disposed opposite to the bladder 200 and has a tendency to contact or move relative to the bladder 200 in the working state. The bladder 200 forms a flexible contact with the friction object through the filament stack layer 100 to buffer the friction and collision between the two. By setting up a bladder 200 and a friction object disposed opposite to the bladder 200, and forming a filament stack layer 100 on at least one side surface of the bladder 200, the filament stack layer 100 includes an adhesion layer 110 and a filament layer 120 attached to the adhesion layer 110 by electrostatic adsorption, so that the bladder 200 forms a flexible contact with the friction object through the filament stack layer 100. Since the friction object and the bladder 200 have a tendency to contact or move relative to each other in the working state, this flexible contact can replace the hard contact between the surface of the bladder 200 and the friction object. The elastic deformation characteristics of the filament layer 120 are used to absorb the impact energy between the two and reduce the friction coefficient of the contact surface, thereby effectively buffering the friction and collision between the bladder 200 and the friction object, significantly reducing the abnormal noise caused by hard contact, and reducing the wear of the surface of the bladder 200. Under the premise of ensuring the normal inflation and expansion function of the bladder 200, the ride comfort and service life of the system components are improved.

[0041] In some embodiments of the present invention, the object to be rubbed is another bladder 200, an airbag support component 300, a lumbar support backrest 600, or a seat cover layer 400. Since these components are key mating parts in the seat pneumatic massage system that have direct contact or relative movement tendencies with the bladder 200, when the bladder 200 inflates or contracts, its side surfaces inevitably rub or collide with these components. When the other bladder 200 is the object to be rubbed, the filament stack layer 100 forms a flexible insulating interface between the opposing surfaces of the two bladders 200, changing the hard contact between the bladders 200 to a flexible contact between filaments, thereby significantly reducing frictional noise when the multi-stage bag structure is squeezed together. When the airbag support component 300 is the object to be rubbed, the filament stack layer 100 forms an elastic buffer layer between the bladder 200 and the support structure, absorbing the friction caused by the expansion of the bladder 200. The impact energy is reduced to prevent direct collision between the surface of the bladder 200 and the rigid support components. For the lumbar support backrest 600 as the object of friction, the velvet layer 100 forms a flexible contact surface between the lumbar support airbag 900 and the backrest, reducing friction noise between the lumbar support airbag 900 and the backrest during reciprocating motion. For the seat cover layer 400 as the object of friction, the velvet layer 100 forms a flexible transition between the top surface of the massage airbag 800 and the seat cover layer 400, reducing the pushing noise on the seat fabric when the airbag inflates. Furthermore, by setting the velvet layer 100 on the side surface of the bladder 200 and forming targeted flexible contact with the aforementioned objects of friction, the seat pneumatic massage system achieves buffering and noise reduction protection across all scenarios and multiple objects. While ensuring the normal inflation and massage function of the bladder 200, it significantly reduces overall system noise, improves seating comfort, and extends the service life of the bladder 200.

[0042] like Figure 9 and Figure 12As shown, in some embodiments of the present invention, the pneumatic massage and lumbar support system assembly further includes an air tube 700 communicating with the bladder 200. A filament stacked layer 100 is formed on the outer surface of the air tube 700 to prevent frictional noise between the air tube 700 and the bladder 200, adjacent air tubes 700, or objects being rubbed. The filament stacked layer 100 is formed on the outer surface of the air tube 700 communicating with the bladder 200. Since the outer surface of the air tube 700 is easily in contact, collide, and move relative to the bladder 200, adjacent air tubes 700, or objects being rubbed when the air tube 700 is arranged inside the system, the filament stacked layer 100 forms a continuous flexible covering layer on the outer surface of the air tube 700. This flexible covering layer can replace the hard contact between the air tube 700 and other components, utilizing the elastic deformation characteristics of the filaments to absorb impact energy and reduce the coefficient of friction of the contact surface, thereby effectively buffering the air... Friction and collision between the tube 700 and the bladder 200, adjacent trachea 700, or the friction object prevent abnormal noise caused by hard contact; at the same time, the velvet accumulation layer 100 on the outer surface of the trachea 700 does not affect the gas flow and air supply efficiency inside the trachea 700. Under the premise of ensuring unobstructed air passage and normal inflation and expansion function of the bladder 200, all-round buffering and noise reduction protection of the trachea 700 and its surrounding components is achieved, further reducing the overall abnormal noise of the system, improving ride comfort and the service life of the trachea 700.

[0043] It should be noted that, where there is no conflict, the features in the embodiments of this invention can be combined with each other.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A bladder for a seat pneumatic system, characterized in that, The outer surface of the side region of the capsule (200) has a filament stack layer (100), which includes an adhesive layer (110) and a filament layer (120). The adhesive layer (110) is attached to the surface of the capsule (200), and the filaments in the filament layer (120) are embedded in the adhesive layer (110) and form a flexible buffer surface on the surface of the adhesive layer (110).

2. The bladder for a seat pneumatic system according to claim 1, characterized in that, At least a portion of the side regions of the capsule (200) are made of polyester film, and the surface of the capsule is formed with the filament stack layer (100); and / or, At least a portion of the side regions of the capsule (200) are made of thermoplastic polyurethane, and the filament stack layer (100) is formed on its surface.

3. The bladder for a seat pneumatic system according to claim 2, characterized in that, The capsule (200) includes a flocked area and an unflocked area, wherein the flocked area is covered by the flocked stack layer (100) and the unflocked area is a welding area.

4. The bladder for a seat pneumatic system according to claim 1, characterized in that, The filaments in the filament layer (120) are attached to the adhesive layer (110) by electrostatic adsorption.

5. The bladder for a seat pneumatic system according to claim 4, characterized in that, The adhesive material is adhered to the capsule (200) by spraying to form the adhesive layer (110); and / or, the adhesive material is adhered to the capsule (200) by coating to form the adhesive layer (110); and / or, the adhesive material is adhered to the capsule (200) by electrostatic adsorption to form the adhesive layer (110).

6. The bladder for a seat pneumatic system according to claim 4, characterized in that, The flocking layer (120) is a flocking layer composed of short fibers.

7. The bladder for a seat pneumatic system according to any one of claims 1-6, characterized in that, The velvet layer (120) is a flexible fiber powder or an elastic plastic powder.

8. The bladder for a seat pneumatic system according to claim 7, characterized in that, The length of the filaments in the filament layer (120) is 0.03mm-5mm.

9. The bladder for a seat pneumatic system according to claim 7, characterized in that, The adhesive layer (110) is an environmentally friendly adhesive layer.

10. The bladder for a seat pneumatic system according to claim 7, characterized in that, The thickness of the adhesive layer (110) is 0.1mm-0.4mm.

11. The bladder for a seat pneumatic system according to claim 7, characterized in that, The bladder (200) is a massage air bag (800), a lumbar support air bag (900), or a connecting air tube (700).

12. The bladder for a seat pneumatic system according to claim 11, characterized in that, The capsule (200) is a multi-level bag structure, and the powder accumulation layer (100) is formed on the top surface of the top layer air bag, and / or the bottom surface of the bottom layer air bag, and / or the opposite surfaces of each level of air bag in the multi-level bag.

13. A pneumatic massage and lumbar support system component, characterized in that, include: A capsule (200) having at least one side surface formed with a filament stack layer (100), the filament stack layer (100) comprising an adhesive layer (110) and a filament layer (120) attached to the adhesive layer (110) by electrostatic adsorption; and The friction object is disposed opposite to the bladder (200) and has a tendency to contact or move relative to the bladder (200) in the working state; The capsule (200) forms a flexible contact with the object being rubbed through the filament stack (100) to buffer the friction and collision between the two.

14. The pneumatic massage and lumbar support system assembly according to claim 13, characterized in that, The object being rubbed is another bladder (200), an airbag support component (300), a lumbar support back panel (600), or a seat cover (400).

15. The pneumatic massage and lumbar support system assembly according to claim 13, characterized in that, It also includes a trachea (700) communicating with the capsule (200), and the outer surface of the trachea (700) is formed with the filament stack layer (100) to prevent friction noise between the trachea (700) and the capsule (200), adjacent tracheas (700) or the object being rubbed.

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