Valve module and pneumatic comfort system

Abstract

The application relates to the technical field of valve bodies, in particular to a valve module and a pneumatic comfort system. The valve module comprises a shell and a valve assembly wrapped in the shell, the inner wall of the shell has a first area with a spacing from the valve assembly, and the valve module further comprises a sound absorbing piece arranged in the first area. By arranging the sound absorbing piece in the shell, at least part of the noise generated by the valve assembly arranged in the shell can be absorbed, so that the noise of the valve module is reduced. The valve module has good noise reduction effect, and the volume and production cost are not significantly increased.

Description

Technical Field

[0001] This application relates to the field of valve body technology, and in particular to a valve module and a pneumatic comfort system. Background Technology

[0002] The seat comfort system includes an air pump, valve assemblies, and air bags. The air pump controls the switching of air paths via the valve assemblies to control the inflation and deflation of the air bags, thereby adjusting the seat contours to achieve massage, support, and other functions. There are usually multiple valve assemblies and air bags, each of which can be independently controlled for inflation and deflation. The valve assemblies are usually integrated into valve modules to facilitate the installation and management of multiple valve assemblies.

[0003] Valve assemblies generate noise during operation. Related technologies aim to reduce noise by wrapping the valve assembly with sound-absorbing cotton or modifying its internal structure. Wrapping the valve assembly with sound-absorbing cotton increases its size, reducing seat space utilization, especially when there are multiple valve assemblies, which drastically reduces space efficiency. Modifying the internal structure of the valve assembly, such as improving the air passage structure or the valve core, is difficult and not only increases cost but also has limited effectiveness. Utility Model Content

[0004] The embodiments of this application aim to provide a valve module and a pneumatic comfort system, so as to at least reduce the noise of the valve module.

[0005] In order to solve the above-mentioned technical problems, the embodiments of this application adopt the following technical solutions: In a first aspect, embodiments of this application provide a valve module, the valve module including a housing and a valve assembly enclosed inside the housing, the inner wall of the housing having a first region with a gap between it and the valve assembly, the valve module further including a sound-absorbing element disposed in the first region.

[0006] In some embodiments, the sound-absorbing element includes a sound-absorbing wedge.

[0007] In some embodiments, the sound-absorbing element includes a cochlear-like structure.

[0008] In some embodiments, the cochlear-like structure includes a waveguide that extends in a spiral shape; the spiral radius of the waveguide gradually decreases from the inlet to the outlet of the waveguide, and the inner diameter of the waveguide gradually decreases.

[0009] In some embodiments, the housing includes a first housing and a second housing, the valve assembly is disposed on the first housing, and the second housing abuts against the valve assembly; the second housing includes the first region.

[0010] In some embodiments, the valve module further includes an elastic layer sandwiched between the second housing and the valve assembly.

[0011] In some embodiments, the elastic layer comprises a sound-absorbing material.

[0012] In some embodiments, the valve module further includes a circuit board disposed on the first housing, the valve assembly disposed on the circuit board, and the sound-absorbing member abutting against the circuit board.

[0013] In some embodiments, the valve module further includes a sound-absorbing layer disposed in the first region, and the sound-absorbing element is disposed in the sound-absorbing layer.

[0014] Secondly, embodiments of this application provide a pneumatic comfort system, which includes an air source device, an air-using unit, and a valve module as described in any of the embodiments of the first aspect above. The air source device is in fluid communication with the air-using unit through the valve module.

[0015] The valve module of this application embodiment can absorb at least part of the noise generated by the valve assembly provided in the housing by providing a sound-absorbing component inside the housing, thereby reducing the noise of the valve module.

[0016] Furthermore, there is no need to modify the internal structure of the valve assembly, which reduces production costs compared to modifying the internal structure of the valve assembly; there is also no need to wrap the valve assembly with sound-absorbing cotton, which reduces the size of the valve module compared to wrapping the valve assembly with sound-absorbing cotton. In other words, the valve module of this application not only has a good noise reduction effect, but also does not significantly increase the size and production cost.

[0017] The pneumatic comfort system of this application embodiment is equipped with the above-mentioned valve module, which reduces the production cost of the pneumatic comfort system, reduces the volume occupied by the pneumatic comfort system, reduces the noise of the pneumatic comfort system, and enhances the comfort.

[0018] The above description is merely an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0019] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0020] Figure 1 This is a schematic diagram of the valve module according to an embodiment of this application; Figure 2 This is an exploded view of the valve module according to an embodiment of this application; Figure 3 yes Figure 2 A schematic diagram of a structure in which the sound-absorbing component is located in the second shell; Figure 4 This is a structural schematic diagram of the sound-absorbing component and valve module part of an embodiment of this application; Figure 5 yes Figure 4 Cross-sectional view of the sound-absorbing component and sound-absorbing layer; Figure 6 This is a structural schematic diagram of the sound-absorbing component and valve module part of another embodiment of this application; Figure 7 This is a structural schematic diagram of the sound-absorbing component and valve module part of another embodiment of this application.

[0021] The reference numerals in the detailed embodiments are as follows: 100. Valve module; 1. Shell; 11. First shell; 12. Second shell; 13. First region; 2. Valve assembly; 3. Sound-absorbing components; 31. Sound-absorbing wedges; 311. Receiving cavity; 32. Noise-reducing particles; 33. Cochlear-like structure; 331. Waveguide; 4. Elastic layer; 5. Circuit board; 6. Sound-absorbing layer. Detailed Implementation

[0022] To facilitate understanding of this application, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a more detailed account. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0024] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0025] In the description of the embodiments of this application, the terms "first," "second," etc., are used to define components merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0027] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0028] Firstly, please refer to Figure 1 and Figure 2 This application provides a valve module 100, which includes a housing 1 and a valve assembly 2 enclosed inside the housing 1.

[0029] For housing 1 mentioned above, please refer to Figure 1 and Figure 2 The housing 1 is flat. This facilitates the array arrangement of the valve assembly 2 within the housing 1, and the flat shape of the housing 1 also facilitates installation within the seat. Alternatively, the housing 1 may be flat and rectangular.

[0030] In some embodiments, please refer to Figure 2 The housing 1 includes a first housing 11 and a second housing 12, which are interlocked to enclose the valve assembly 2. For example, please refer to... Figure 2 and Figure 3The first housing 11 and the second housing 12 each have grooves on opposite sides, forming an accommodating space to enclose the valve assembly 2. The first housing 11 and the second housing 12 are detachably connected to facilitate the installation of the valve assembly 2 within the accommodating space and to facilitate maintenance of the valve assembly 2. Optionally, the first housing 11 and the second housing 12 are snap-fitted together or connected by screws or bolts.

[0031] In some embodiments, valve assembly 2 is disposed on first housing 11, and second housing 12 abuts against valve assembly 2. Second housing 12 presses down on valve assembly 2, increasing the firmness of valve assembly 2 installed on housing 1, and also helping to reduce the thickness of housing 1.

[0032] For the aforementioned valve assembly 2, the valve assembly 2 can be a solenoid valve, used to control the opening and closing of the air passage. For example, the valve module 100 is used to control the opening and closing of the air passage between the air source device and the air-using unit, as well as to control the opening and closing of the air passage between the external environment and the air-using unit, thereby controlling the inflation and deflation of the air-using unit. When the air-using unit is an air bag, it can control the inflation and deflation of the air bag to achieve pneumatic comfort adjustment.

[0033] Understandably, when valve assembly 2 is in operation, the valve core inside moves relative to the valve housing; for example, the valve core impacting the valve housing will generate noise. Furthermore, the air-consuming unit vents air through the vent provided in valve assembly 2. The high air pressure within the air-consuming unit results in significant aerodynamic noise from the gas discharged through the vent. Therefore, valve module 100 generates considerable noise during operation.

[0034] In related technologies, the noise of valve module 100 is typically reduced in two ways: Method 1: Reducing the noise propagated outward from valve assembly 2 by wrapping it with sound-absorbing cotton. However, wrapping valve assembly 2 with sound-absorbing cotton increases the size of valve module 100, reducing the space utilization of the seat. This is especially true when there are multiple valve assemblies 2, which drastically reduces the space utilization of the seat.

[0035] Method 2: Reduce the noise of valve assembly 2 by improving its internal structure, such as by improving the air circuit structure or the valve core. However, this method is difficult to improve and will not only increase the cost of valve assembly 2, but also have little effect.

[0036] To improve the above-mentioned problems, please refer to some embodiments. Figure 2 and Figure 3The inner wall of the housing 1 has a first region 13 with a gap between it and the valve assembly 2. The valve module 100 also includes a sound-absorbing element 3, which is disposed in the first region 13. That is, a sound-absorbing element 3 is provided inside the housing 1, and the sound-absorbing element 3 is spaced apart from the valve assembly 2. By providing a sound-absorbing element 3 inside the housing 1, at least part of the noise generated by the valve assembly 2 can be absorbed, thereby reducing the noise of the valve module 100. Optionally, the sound-absorbing element 3 is bonded to the inner wall of the housing 1.

[0037] Furthermore, compared to method one, this embodiment places the sound-absorbing component 3 in an empty area within the housing 1, that is, a space within the housing 1 where no components are installed. This essentially does not affect the original shape and size of the housing 1, meaning the volume of the valve module 100 does not increase. Alternatively, an additional space can be added within the housing 1 to accommodate the sound-absorbing component 3. Although this increases the volume of the valve module 100, the volume is actually smaller compared to wrapping each valve assembly 2 with sound-absorbing cotton. Compared to method two, this embodiment does not require any modification to the valve assembly 2. The increased production cost is only the cost of the sound-absorbing component 3, and the production cost is actually lower than modifying the valve assembly 2. Therefore, the valve module 100 of this application not only has a good noise reduction effect, but also does not significantly increase its volume or production cost.

[0038] In some embodiments, the first region 13 corresponds to the empty area within the housing 1, and the vent of the valve assembly 2 faces the first region 13. This concentrates the noise of the valve assembly 2 onto the sound-absorbing member 3, improving the noise absorption effect.

[0039] Regarding the sound-absorbing component 3 described above, please refer to some embodiments. Figure 3 The sound-absorbing component 3 includes a sound-absorbing wedge 31. By setting the sound-absorbing wedge 31, the contact area between the sound-absorbing component 3 and the air is increased, thereby increasing the absorption of noise. The sound-absorbing wedge utilizes a gradual change in special impedance, from the characteristic impedance of the wedge end face approaching the characteristic impedance of air, to gradually transitioning to approaching the characteristic impedance of the sound-absorbing component 3, thereby increasing the noise absorption of the sound-absorbing component 3.

[0040] In some embodiments, please refer to Figure 3 Multiple sound-absorbing wedges 31 are distributed along the width direction of the sound-absorbing wedges 31 on the shell 1.

[0041] In some embodiments, please refer to Figure 4 Multiple sound-absorbing wedges 31 are evenly distributed in a longitudinal and transverse pattern on the shell 1. The multiple sound-absorbing wedges 31 can be divided into multiple groups, each group including at least one sound-absorbing wedge 31. Each group of sound-absorbing wedges 31 has an extending direction, and each sound-absorbing wedge 31 in the group is parallel to the extending direction, that is, each sound-absorbing wedge 31 in each group extends in the same direction; the extending directions of the sound-absorbing wedges 31 in different groups can be at an angle, for example, 90 degrees.

[0042] In some other embodiments, a plurality of sound-absorbing wedges 31 are arranged laterally or longitudinally at intervals in the housing 1.

[0043] In some embodiments, please refer to Figure 4 The sound-absorbing wedge 31 is formed in the shape of a triangular prism, with one side wall connected to the shell 1. In some other embodiments, the sound-absorbing wedge 31 may also be conical or pyramidal. Optionally, the height of the sound-absorbing wedge 31 is 0.5cm to 2cm, for example, the height of the sound-absorbing wedge 31 may be 0.5cm, 1cm, 1.5cm, 2cm, etc.

[0044] In some embodiments, please refer to Figure 5 At least one sound-absorbing wedge 31 has a receiving cavity 311 filled with noise-reducing particles 32. That is, the receiving cavity 311 can be provided in a portion of the multiple sound-absorbing wedges 31, or each sound-absorbing wedge 31 can have a receiving cavity 311. Exemplarily, the sound-absorbing wedge 31 can be configured as a hollow structure with one open end, the open end of which is connected to the housing 1 to seal the receiving cavity 311 through the housing 1. Optionally, the sound-absorbing wedge 31 is bonded to the housing 1, or integrally formed with the housing 1. The noise-reducing particles 32 can be sound-absorbing particles to enhance the sound absorption effect of the sound-absorbing wedge 31.

[0045] In some embodiments, the noise-reducing particles 32 are elastic. For example, the noise-reducing particles 32 are rubber particles. When the sound waves of noise propagate to the sound-absorbing wedge 31, the sound-absorbing wedge 31 vibrates, and its vibration energy is transferred to the noise-reducing particles 32. The noise-reducing particles 32 rub against each other and move against each other, converting the sound energy of the noise into heat energy, thereby improving the sound absorption effect of the sound-absorbing wedge 31.

[0046] In some embodiments, the particle size of the noise-reducing particles 32 is 200 mesh to 4 mm. Further, the particle size of the noise-reducing particles 32 is 200 mesh to 100 mesh, which facilitates the processing of the noise-reducing particles 32. Here, the unit mesh refers to the number of openings per square inch of screen. 50 mesh means there are 50x50 openings per square inch, and 500 mesh means there are 500x500 openings per square inch. The higher the mesh number, the more openings and the smaller the particle size. The aperture of a 200 mesh screen is 74 μm, meaning the particle size of the 200 mesh damping particles is 74 μm. Optionally, the particle size of the damping particles can be 200 mesh, 100 mesh, 1 mm, 2 mm, 3 mm, 4 mm, etc.

[0047] In some embodiments, please refer to Figure 4 and Figure 5The roots of the sound-absorbing wedges 31 are interconnected. When sound waves of noise are incident on the surface of the sound-absorbing wedges 31, they can be reflected to the surface of another sound-absorbing wedge 31 connected to or adjacent to it, and finally reach the housing 1 after multiple reflections. During the multiple reflections of the sound waves between the sound-absorbing wedges 31, some of the sound energy can be converted into heat energy, thereby improving the sound absorption effect of the sound-absorbing wedges 31. At the same time, the noise-reducing particles 32 in the receiving cavity 311 also absorb some noise or convert some of the sound energy into heat energy.

[0048] In some embodiments, please refer to Figure 6 The sound-absorbing wedge 31 is formed in the shape of a triangular prism, with one end face connected to the shell 1. That is, the sound-absorbing wedge 31 has three points, each pointing in a different direction, increasing its utilization rate. Furthermore, the three points of the sound-absorbing wedge 31 are all perpendicular to the thickness direction of the shell 1. Thus, most of the noise propagation direction within the shell 1 is perpendicular to the length direction of the sound-absorbing wedge 31, meaning most noise propagates towards the outer peripheral surface of the sound-absorbing wedge 31 rather than towards its end face, increasing the probability of noise reaching the tips of the sound-absorbing wedge 31 and improving its noise absorption effect. Optionally, the sound-absorbing wedge 31 is formed in the shape of a regular triangular prism, i.e., its cross-section is an equilateral triangle.

[0049] In some embodiments, please refer to Figure 6 The tip of the sound-absorbing wedge 31 faces the valve assembly 2. The pointed end of the sound-absorbing wedge 31 facing the valve assembly 2 enhances the absorption effect on noise generated by the valve assembly 2. It is understood that in this application, the valve assembly 2 is the primary source of noise; therefore, by directionally absorbing the noise of the valve assembly 2 through the sound-absorbing wedge 31, the noise of the valve module 100 can be sufficiently reduced.

[0050] Regarding the sound-absorbing element 3 described above, please refer to other embodiments. Figure 7 The sound-absorbing component 3 includes a cochlear-like structure 33. The cochlear-like structure 33, i.e., the sound-absorbing component 3, has a spiral channel, which can increase the noise propagation distance in a small space, increase the contact area between the sound-absorbing component 3 and the noise, and improve the noise absorption effect of the sound-absorbing component 3.

[0051] In some embodiments, the sound-absorbing member 3 includes a cochlear-like structure 33 and a sound-absorbing wedge 31. For example, the cochlear-like structure 33 is disposed on the sound-absorbing wedge 31, or the sound-absorbing member 3 includes a base plate for mounting the sound-absorbing wedge 31, and the cochlear-like structure 33 is disposed on the base plate of the sound-absorbing member 3.

[0052] In some embodiments, please refer to Figure 7The cochlear-like structure 33 includes a waveguide 331, which extends in a spiral shape. From the inlet to the outlet of the waveguide 331, the spiral radius and inner diameter of the waveguide 331 gradually decrease. That is, the cochlear-like structure 33 forms a waveguide 331. The gradual decrease in the spiral radius of the waveguide 331 causes a continuous change in the direction of noise propagation, thereby disrupting the continuity of noise propagation and increasing the absorption of noise by the sound-absorbing element 3. The gradual decrease in the inner diameter of the waveguide 331 causes the characteristic impedance of the waveguide 331 to gradually transition from near-air at the inlet to near-air at the sound-absorbing element 3, thereby increasing the absorption of noise by the sound-absorbing element 3.

[0053] Optionally, the waveguide 331 has 3 to 4 helical turns, a pitch of 50 mm to 70 mm, and a helical progression of 270 mm to 300 mm. The helical progression of the waveguide 331 is the distance from the inlet to the outlet of the waveguide 331 along the helical direction.

[0054] Optionally, the diameter of the inlet of the waveguide 331 is 50 mm to 70 mm, and the diameter of the outlet of the waveguide 331 is 25 mm to 35 mm.

[0055] In some embodiments, the inner wall of the waveguide 331 is provided with labyrinthine sound-absorbing cotton (not shown). This enhances the absorption of noise by the sound-absorbing element 3.

[0056] In some embodiments, please refer to Figure 3 The second housing 12 includes a first region 13. Specifically, the valve assembly 2 and the sound-absorbing element 3 are respectively located in the first housing 11 and the second housing 12. It should be noted that... (See also...) Figure 2 The valve assembly 2 is usually connected to the circuit board 5 to provide power and control. The valve assembly 2 and the circuit board 5 are installed together in the first housing 11, and the sound-absorbing component 3 is placed in the second housing 12 to facilitate the installation of the sound-absorbing component 3.

[0057] In some embodiments, please refer to Figures 2 to 4 The valve module 100 also includes an elastic layer 4, which is sandwiched between the second housing 12 and the valve assembly 2. The elastic layer 4 elastically supports the valve assembly 2, working in conjunction with the first housing 11 to stably hold the valve assembly 2, thus improving the vibration of the valve assembly 2 relative to the housing 1 and reducing noise sources within the valve module 100. Furthermore, the valve assembly 2 does not require a fastener connection to the housing 1; fixation is achieved through the elastic layer 4 and the clamping action of the first housing 11, simplifying the assembly process of the valve module 100. Optionally, the elastic layer 4 can be a rubber gasket.

[0058] In some embodiments, the elastic layer 4 includes a sound-absorbing material. Thus, the elastic layer 4 not only cooperates with the first housing 11 to hold the valve assembly 2, but also absorbs noise within the valve module 100, reducing the noise of the valve module 100. Optionally, the elastic layer 4 is sound-absorbing cotton.

[0059] In some embodiments, please refer to Figure 2 The valve module 100 also includes a circuit board 5, which is disposed on the first housing 11, and the valve assembly 2 is disposed on the circuit board 5; a sound-absorbing member 3 abuts against the circuit board 5. By abutting against the circuit board 5 with the sound-absorbing member 3, and cooperating with the first housing 11 to stably clamp the circuit board 5, the vibration of the circuit board 5 relative to the housing 1 is improved, and the noise source within the valve module 100 is reduced. Furthermore, there is no need for a fastener connection between the circuit board 5 and the housing 1; fixation is achieved by the sound-absorbing member 3 and the clamping of the first housing 11, simplifying the assembly process of the valve module 100.

[0060] Furthermore, the circuit board 5 is used for electrical connection with the valve assembly 2, thereby supplying power to the coil of the valve module 100. The coil of the valve module 100 is typically soldered to the circuit board 5, meaning the valve module 100 is fixed to the circuit board 5. By using the sound-absorbing component 3 in conjunction with the first housing 11 to clamp the circuit board 5, the fixing strength of the valve assembly 2 relative to the housing 1 is enhanced, further improving the vibration of the valve assembly 2 relative to the housing 1.

[0061] In some embodiments, the valve assembly 2, in conjunction with the first housing 11, clamps the circuit board 5, thereby enhancing the fixing strength of the housing 1 to the circuit board 5.

[0062] In some embodiments, please refer to Figures 2 to 4 The valve module 100 also includes a sound-absorbing layer 6, which is disposed in the first region 13, and the sound-absorbing component 3 is disposed on the sound-absorbing layer 6. The sound-absorbing layer 6 can further absorb noise that is not absorbed by the sound-absorbing component 3. Optionally, the sound-absorbing layer 6 is sound-absorbing cotton. Optionally, the sound-absorbing layer 6 is bonded to the housing 1, and the sound-absorbing component 3 is bonded to the sound-absorbing layer 6.

[0063] In some embodiments, the sound-absorbing layer 6 and the sound-absorbing component 3 are integral components. That is, the sound-absorbing layer 6 and the sound-absorbing component 3 are integrally molded, which facilitates the production and manufacturing of the sound-absorbing layer 6 and the sound-absorbing component 3, eliminates the process of installing the sound-absorbing component 3 onto the sound-absorbing layer 6, and simplifies the assembly process of the valve module 100. It is understood that when the sound-absorbing component 3 is installed on the sound-absorbing layer 6, it needs to be accurately positioned. For example, when the sound-absorbing component 3 is a sound-absorbing wedge 31, the sound-absorbing wedge 31 needs to be installed on the sound-absorbing layer 6 according to a preset arrangement. However, in this embodiment, the sound-absorbing layer 6 and the sound-absorbing component 3 are integrally molded, which can improve the problem of the difficulty in installing the sound-absorbing component 3 onto the sound-absorbing layer 6 due to the need for accurate positioning.

[0064] In some embodiments, the sound-absorbing layer 6 is provided with a cochlear-like structure 33.

[0065] Secondly, embodiments of this application provide a pneumatic comfort system (not shown), which includes an air source device (not shown), an air-consuming unit (not shown), and a valve module 100 as described in any of the embodiments of the first aspect above. The air source device is in fluid communication with the air-consuming unit through the valve module 100. The pneumatic comfort system of this application embodiment includes the aforementioned valve module 100, which reduces the production cost of the pneumatic comfort system, reduces the volume occupied by the pneumatic comfort system, weakens the noise of the pneumatic comfort system, and enhances comfort.

[0066] The pneumatic comfort system can be a pneumatic massage system, a pneumatic lumbar support system, a pneumatic side support system, a pneumatic firmness adjustment system, etc. The air source device includes, but is not limited to, an air pump, an air compressor, etc., and the air-using unit can be an air bag. The valve module 100 is used to control the opening and closing of the air passage between the air source device and the air bag, as well as the opening and closing of the air passage between the external environment and the air bag, thereby controlling the inflation and deflation of the air bag, and thus controlling the inflation and deflation of the air bag to achieve pneumatic comfort adjustment.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A valve module, characterized in that, The device includes a housing and a valve assembly enclosed within the housing. The inner wall of the housing has a first region with a gap between it and the valve assembly. The valve module also includes a sound-absorbing element disposed in the first region.

2. The valve module according to claim 1, characterized in that, The sound-absorbing component includes a sound-absorbing wedge.

3. The valve module according to claim 1, characterized in that, The sound-absorbing component includes a cochlear-like structure.

4. The valve module according to claim 3, characterized in that, The cochlear-like structure includes a waveguide that extends in a spiral shape; From the inlet to the outlet of the waveguide, the helical radius of the waveguide gradually decreases, and the inner diameter of the waveguide gradually decreases.

5. The valve module according to any one of claims 1 to 4, characterized in that, The housing includes a first housing and a second housing, the valve assembly is disposed in the first housing, and the second housing abuts against the valve assembly; The second shell includes the first region.

6. The valve module according to claim 5, characterized in that, The valve module further includes an elastic layer sandwiched between the second housing and the valve assembly.

7. The valve module according to claim 6, characterized in that, The elastic layer includes sound-absorbing material.

8. The valve module according to claim 5, characterized in that, The valve module further includes a circuit board, which is disposed in the first housing, and the valve assembly is disposed on the circuit board; The sound-absorbing element abuts against the circuit board.

9. The valve module according to any one of claims 1 to 5, characterized in that, The valve module further includes a sound-absorbing layer, which is disposed in the first region, and the sound-absorbing component is disposed in the sound-absorbing layer.

10. A pneumatic comfort system, characterized in that, It includes a gas source device, a gas consumption unit, and a valve module as described in any one of claims 1 to 9, wherein the gas source device is in fluid communication with the gas consumption unit through the valve module.

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