Mute air valve and pneumatic comfort system
By setting a silencer and a micro-air channel on the airway of the air valve, the noise and noise problems of the air valve during the airflow conversion process are solved, and the stability and comfort of the pneumatic comfort system are improved.
Patent Information
- Application Number
- CN202420366834.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-02-27
AI Technical Summary
Existing air valves generate noise and noise during the airflow conversion process, affecting the stability and comfort of the pneumatic comfort system, especially when the airflow is converted into a small airflow, turbulence and vortex are prone to occur.
A silencer is installed on the airway of the air valve, and a micro-air flow channel that allows gas to flow is designed on the silencer, slow down the rapid flow of gas, uniform air flow, reduce the impact and friction between the airflow and the airway, thereby reducing noise.
It improves the working stability of the air valve, reduces noise, and improves the overall comfort and user experience of the pneumatic comfort system.
Smart Images
Figure CN222142179U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of air valves, and in particular relates to a silent air valve and a pneumatic comfort system. Background Art
[0002] In the pneumatic comfort system, the gas output from the air source needs to be controlled by the air valve module and delivered to the air bag. The air valve module serves as the control center of the air path and is provided with an air valve to at least control the ventilation of the air bag. The structure of the air valve generally includes a valve body and a movable valve core arranged inside the valve body for adjusting the gas flow conditions, and a gas channel is left between the inner cavity of the valve body and the movable valve core. When the gas enters the valve body from the air inlet, the airflow flows to the gas channel between the inner cavity of the valve body and the movable valve core, and then flows out from the air outlet; during the entire gas flow process, the airflow direction generally needs to go through multiple turns.
[0003] Therefore, during the airway conversion process in the air valve, the airflow will produce multiple conversion turns, the air noise is relatively large, and the rapid impact of the airflow will cause friction with the airway and the pipe wall, especially when the large airflow is converted into a small airflow. Not only will the airflow fluctuations cause the airflow sound to be relatively large, causing the entire system to have airflow noise when working, which has a certain impact on the comfort of the system, but it is also prone to airflow fluctuations such as turbulence and eddy currents, reducing the stability of the valve operation. Utility Model Content
[0004] In order to solve the deficiencies of the prior art, the utility model provides a silent air valve, a silencer is provided on the airway between the movable valve core and the inner wall of the valve cavity, and the silencer is provided with a micro-flow channel that allows gas to flow; the silencer can not only slow down the rapid flow of gas entering the airway after hitting the movable valve core, making the airflow uniform in all directions, preventing the occurrence of turbulent and eddy airflow fluctuations, and improving the overall working stability of the air valve, but also can reduce the impact and friction between the airflow and the airway, reduce the airflow noise, and thus improve the comfort of the used car seat comfort system. The utility model also provides a pneumatic comfort system using the above-mentioned silent air valve, the system has good working stability and low noise, and can greatly improve the overall comfort of the pneumatic comfort system.
[0005] The technical effect to be achieved by the utility model is achieved through the following technical solutions:
[0006] The silent air valve in the utility model comprises a valve body and a movable valve core, the valve body is provided with an air inlet, an air outlet and a valve cavity connected with the air inlet and the air outlet, the movable valve core is arranged in the valve cavity, an airway is arranged between the movable valve core and the inner wall of the valve cavity, the airway connects the air inlet and the air outlet, a silencer is arranged on the airway, and the silencer is provided with a micro-flow channel allowing gas to flow.
[0007] As a preferred solution, the silencer abuts against the inner side of the air outlet.
[0008] As a preferred solution, an assembly groove is provided on the movable valve core; the air channel includes a first air channel opened on the movable valve core and connected to the assembly groove, and the silencer is installed on the assembly groove.
[0009] As a preferred solution, the first air passages include a plurality of first air passages, and the plurality of first air passages are arranged along the circumferential direction of the movable valve core.
[0010] As a preferred solution, the silencer is arranged in an annular manner on the movable valve core, and the outer surface of the silencer abuts against the inner wall of the valve cavity.
[0011] As a preferred solution, the air channel includes a second air channel opened on the inner wall of the valve cavity and connected to the assembly groove.
[0012] As a preferred solution, an elastic member is provided, and the elastic action of the elastic member causes the movable valve core to seal against the air inlet.
[0013] As a preferred solution, a sealing buffer is provided on a side of the movable valve core adjacent to the air inlet.
[0014] As a preferred solution, the silencer is a sponge silencer or a grille silencer.
[0015] The pneumatic comfort system in the utility model comprises an air supply unit, a plurality of air bags and a gas distribution device. The plurality of air bags are connected to the air supply unit through the gas distribution device, and the gas distribution device contains the silent air valve as described above.
[0016] In summary, the utility model has at least the following benefits:
[0017] 1. The silent air valve in the utility model is provided with a silencer on the airway between the movable valve core and the inner wall of the valve cavity, and the silencer is provided with a micro-flow channel allowing gas to flow; the silencer can not only slow down the rapid flow of gas entering the airway after hitting the movable valve core, making the airflow flow in all directions uniform, preventing the occurrence of turbulent and eddy airflow fluctuations, and improving the overall working stability of the air valve, but also can reduce the impact and friction between the airflow and the airway, reduce the airflow noise, thereby improving the comfort of the applied car seat comfort system.
[0018] 2. The pneumatic comfort system in the utility model has good system operation stability and low noise, which can greatly improve the overall comfort of the pneumatic comfort system and enhance the user experience of the pneumatic comfort system. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is an exploded view of the structure of the silent air valve in the embodiment of the utility model;
[0020] Figure 2 It is a schematic cross-sectional view of the structure of the silent air valve in the embodiment of the utility model (at the movable valve core);
[0021] Figure 3 It is a structural schematic diagram of the movable valve core in the embodiment of the utility model;
[0022] Figure 4 It is a structural schematic diagram of the silencer in the embodiment of the utility model.
[0023] Reference numerals:
[0024] 100, valve body, 110, air inlet, 120, air outlet, 130, valve chamber;
[0025] 200, movable valve core, 210, movable valve core body, 220, assembly groove;
[0026] 300, airway, 310, first airway;
[0027] 400, silencer, 410, silencer body, 420, micro air flow channel;
[0028] 500. Elastic parts. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. The described implementation is a part of the implementation of the utility model, not all of the implementations.
[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.
[0031] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0032] Please refer to the attached Figure 1 and 2 The silent air valve in this embodiment includes a valve body 100 and a movable valve core 200; wherein the valve body 100 is provided with an air inlet 110, an air outlet 120 and a valve cavity 130 communicating with the air inlet 110 and the air outlet 120, the movable valve core 200 is arranged in the valve cavity 130, an air passage 300 is arranged between the movable valve core 200 and the inner wall of the valve cavity 130, and the air passage 300 communicates with the air inlet 110 and the air outlet 120. Moreover, a silencer 400 is arranged on the air passage 300. Further, as shown in the attached Figure 4 As shown, the silencer 400 is provided with a micro-flow channel 420 for allowing gas to flow.
[0033] When the air flow enters the valve cavity 130 from the air inlet 110, due to the obstruction of the active valve core 200, the air flow turns and flows to the airway 300 between the active valve core 200 and the inner wall of the valve cavity 130. The silencer 400 can close the airway 300 during ventilation operation. However, due to the micro-flow channel 420 on the silencer 400, the gas flowing into the airway 300 will flow through the micro-flow channel 420 on the silencer 400. At this time, the gas flow rate entering the micro-flow channel 420 is reduced, thereby reducing the generation of air flow noise, achieving the effect of absorbing air noise, slowing down the gas rapids, making the air flow uniform in all directions, and preventing the occurrence of turbulent and eddy air flow fluctuations, so as to improve the overall working stability of the air valve. In addition, the setting of the silencer 400 can reduce the collision and friction between the airflow and the airway, reduce the airflow noise, and thus improve the comfort of the application in the car seat comfort system.
[0034] In some embodiments, please refer to the attached Figure 3 The movable valve core 200 includes a movable valve core body 210 and an assembly groove 220 which is opened on the outside of the movable valve core body 210 and is adapted to the silencer 400; wherein the movable valve core body 210 is used to block the airflow to achieve on-off control of the airflow, and the assembly groove 220 is used to limit and install the silencer 400 to prevent the silencer 400 from shifting due to the impact of the airflow.
[0035] Please refer to the attached Figure 2 The air channel 300 is a first air channel 310 opened on the movable valve core body 210 or a second air channel (not marked in the figure) opened on the inner wall of the valve cavity 130, and the first air channel 310 or the second air channel (not marked in the figure) is connected to the assembly groove 220; when the ventilation is working, the gas flows sequentially through the air inlet 110, the first air channel 310 or the second air channel (not marked in the figure) and the air outlet 120.
[0036] In order to meet the gas circulation requirements of products of different specifications, the air duct 300 can also be designed to be a first air duct 310 simultaneously opened on the movable valve core body 210 and a second air duct (not marked in the figure) opened on the inner wall of the valve cavity 130, and the first air duct 310 and the second air duct (not marked in the figure) are both connected to the assembly groove 220; when ventilation is working, the gas flows sequentially through the air duct composed of the air inlet 110, the first air duct 310 and the second air duct (not marked in the figure), and the air outlet 120.
[0037] Preferably, a plurality of first air passages 310 or second air passages (not shown) are arranged along the circumferential direction of the movable valve core 200 to form a plurality of air flow passages communicating with the assembly groove 220. Figure 3 As shown; further, a plurality of first air channels 310 or second air channels (not shown) are evenly arranged along the circumferential direction of the movable valve core 200 to effectively improve the uniformity and stability of gas circulation.
[0038] In terms of layout design, the assembly groove 220 is an annular groove opened along the circumferential direction of the movable valve core 200, and is connected to a plurality of first airways 310 arranged along the circumferential direction of the movable valve core 200. The silencer 400 is designed as a ring structure and is arranged on the assembly groove 220 in the movable valve core 200, and the outer surface abuts against the inner wall of the valve cavity 130; wherein, when the inner wall of the valve cavity 130 is provided with a second airway, the outer edge of the annular silencer 400 penetrates into the second airway along the radial direction and abuts against the wall of the second airway. When the ventilation is working, the silencer 400 can close the first airway 310 and / or the second airway (not marked in the figure), and the gas flows to the micro airway on the silencer 400, and the micro airway is used for silencing and noise reduction. Furthermore, the silencer 400 abuts against the inner side of the gas outlet 120 , which can reduce the flow velocity of the gas entering the outlet, avoid the generation of vortex at the outlet, and further reduce the noise generated by the rapid flow of the gas.
[0039] For further information on structural design, please refer to the attached Figure 4The silencer 400 includes a silencer body 410, and a micro-flow channel 420 disposed on the silencer body 410 for gas flow and noise reduction. The silencer body 410 has a plurality of micro-flow channels 420, and each micro-flow channel 420 has at least two vents located on the surface of the silencer body 410 and a channel connected to the two vents and located in the silencer body 410, wherein one vent is adjacent to the air inlet 110, and the other vent is adjacent to the air outlet 120, and the channel located in the silencer body 410 and connecting the two vents can be any form of curved channel and / or straight channel; during ventilation, the gas flowing into the air inlet 110 enters from the vent of the micro-flow channel 420 adjacent to the air inlet 110, passes through the internal channel, and is discharged to the air outlet 120 from the vent adjacent to the air outlet 120. Based on the structural setting of the micro-flow channel 420, the micro-flow channel 420 can absorb air noise, slow down the rapid flow of gas, make the airflow flow uniform in all directions, and prevent the airflow fluctuations such as turbulence and eddy currents, so as to improve the overall working stability of the air valve. In addition, the micro-flow channel 420 can reduce the collision and friction between the airflow and the airway, reduce the airflow noise, and thus improve the comfort of the application in the car seat comfort system.
[0040] Preferably, the silencer 400 is a sponge silencer or a grille silencer. The structure and size of the micro airflow channel 420 in the silencer 400 can be arbitrary and are not specifically limited. For a sponge silencer, the micro airflow channel 420 is a flow channel composed of interconnected micropores on a sponge body; for a grille silencer, it can be a grille with pores formed by melting and sintering such as PVC.
[0041] Furthermore, the silent air valve also includes a sealing buffer (not marked in the figure) which is adjacent to the air inlet 110 and arranged on the movable valve core body 210. Preferably, the sealing buffer is a rubber buffer and is fixed on the end face of the movable valve core 200 facing the air inlet 110, and the surface area of the sealing buffer is larger than the opening end face area of the air inlet 110. The design of the sealing buffer can not only buffer the impact force of the movable valve core body 210 on the valve cavity 130 around the air inlet 110 when the movable valve core 200 moves and resets, thereby further effectively reducing the noise of the air valve operation, but also the sealing buffer made of rubber material can effectively improve the tightness of the movable valve core 200 in sealing the air inlet 110, so as to effectively improve the accuracy and stability of the on-off control of the air valve.
[0042] Further, the silent air valve is provided with an elastic member 500, and the elastic action of the elastic member 500 causes the movable valve core 200 to seal against the air inlet 110. The elastic member 500 may be an elastic rubber or a spring. Preferably, the elastic member 500 is provided on the side of the movable valve core 200 away from the air inlet 110, and the two ends of the elastic member 500 are respectively in contact with the movable valve core 200 and the inner wall of the valve cavity 130; in some embodiments, the end of the valve body 100 away from the air inlet 110 is open and provided with an adjusting screw through a sealing ring, and the two ends of the elastic member 500 are respectively in contact with the inner ends of the movable valve core 200 and the adjusting screw. Under normal conditions, the elastic member 500 exerts an elastic effect on the movable valve core 200, and causes the movable valve core 200 to have a tendency to move closer to the air inlet 110, so that the end of the movable valve core 200 adjacent to the air inlet 110 abuts against the inner side of the air inlet 110, thereby sealing the air inlet 110 and placing the air valve in a closed state. When gas flows in from the air inlet 110 and the gas pressure is greater than the elastic force of the elastic member 500 on the movable valve core 200, the movable valve core 200 will be pushed open by the airflow and the air inlet 110 will be opened. At this time, the elastic member 500 is compressed and the air valve is in an open state. After the air intake stops, the elastic member 500 will cause the movable valve core 200 to reset and close the air inlet 110 of the air valve.
[0043] The silent gas valve of the utility model can be a solenoid valve or a pressure relief valve. When used as a solenoid valve, the valve is provided with a coil that is wound around the movable valve core 200 and electromagnetically drives the movable valve core 200 to move in an energized state to adjust the conduction relationship between the gas ports, and a pressure relief port connected to the gas channel 300 can also be provided; or, the silent gas valve can also be an on-off control module in the gas circuit, which can realize silent gas circulation and circulation control.
[0044] In some embodiments, the valve body 100 of the silent air valve of the present invention may be provided with a plurality of air outlets 120 connected to the air passage 300. Moreover, preferably, the muffler 400 abuts against the inner sides of the plurality of air outlets 120, and the muffler 400 has a muffler and noise reduction effect on the gas flowing from the air passage 300 to the plurality of air outlets 120; specifically, the muffler 400 is provided to abut against the inner side of the air outlet 120, and the gas flowing from the air passage 300 to the air outlet 120 circulates through the micro-flow passage 420 on the muffler 400, thereby achieving muffler and noise reduction when the valve body is deflated.
[0045] The pneumatic comfort system in the embodiment of the utility model can be a pneumatic support system or a pneumatic massage system, such as a lumbar support system, a wing support system, etc. The pneumatic comfort system in the embodiment of the utility model includes an air supply unit, a plurality of air bags, and a gas distribution device. The plurality of air bags are connected to the air supply unit through the gas distribution device, and the gas distribution device controls the inflation, deflation, or pressure maintenance of the air bags. The gas distribution device is provided with the above-mentioned silent air valve.
[0046] In some embodiments, the silent air valve used can be a solenoid valve, and the gas distribution device is provided with a plurality of silent air valves corresponding to the plurality of air bags, the plurality of silent air valves are connected to the plurality of air bags respectively in a one-to-one correspondence, and the plurality of silent air valves are connected to the air supply unit, and each silent air valve controls the inflation, deflation, and pressure maintenance of the corresponding air bag.
[0047] In some embodiments, the silent air valve used may be an on-off control module in the air circuit, and the on-off control module may be connected and arranged on the main air circuit connecting the gas distribution device and the air supply unit to control the on-off of the main air circuit and realize silent ventilation. Among them, the gas distribution device may be provided with a plurality of air valves connected to the main air circuit or distribution air circuits connected to the main air circuit, and the plurality of air valves or distribution air circuits are connected to a plurality of air bags.
[0048] In some embodiments, the gas supply unit includes an air pump. In other embodiments, the gas distribution device and the gas supply unit may be an integrated structure with a pump and a valve.
[0049] It can be seen from the technical solutions of the above embodiments that the utility model provides a silent air valve, which is provided with a silencer 400 for closing the airway between the active valve core 200 and the inner wall of the valve cavity 130 at least during ventilation operation, and the silencer 400 is provided with a micro-flow channel 420 for allowing gas circulation; the silencer 400 can not only slow down the rapid flow of gas entering the airway after hitting the active valve core 200, so that the airflow flows in all directions evenly, prevents the occurrence of turbulent and eddy airflow fluctuations, and improves the overall working stability of the air valve, but also can reduce the impact and friction between the airflow and the airway, reduce the airflow noise, and thus improve the comfort of the applied automobile seat comfort system.
[0050] The utility model provides a pneumatic comfort system using the silent air valve, the system has good working stability and low noise, and can greatly improve the overall comfort of the pneumatic comfort system.
[0051] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0052] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0053] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.
Claims
1. A silent air valve, characterized in that: It includes a valve body and a movable valve core, the valve body is provided with an air inlet, an air outlet and a valve cavity connected with the air inlet and the air outlet, the movable valve core is arranged in the valve cavity, an airway is arranged between the movable valve core and the inner wall of the valve cavity, the airway connects the air inlet and the air outlet, a silencer is arranged on the airway, and the silencer is provided with a micro-flow channel allowing gas to flow.
2. The silent air valve according to claim 1, characterized in that: The silencer abuts against the inner side of the air outlet.
3. The silent air valve according to claim 1, characterized in that: The movable valve core is provided with an assembly groove; the air passage comprises a first air passage opened on the movable valve core and communicated with the assembly groove; the silencer is installed on the assembly groove.
4. The silent air valve according to claim 3, characterized in that: The first air passages include a plurality of first air passages, and the plurality of first air passages are arranged along the circumferential direction of the movable valve core.
5. The silent air valve according to claim 3, characterized in that: The silencer is arranged in an annular manner on the movable valve core, and the outer surface of the silencer abuts against the inner wall of the valve cavity.
6. The silent air valve according to claim 3, characterized in that: The air passage comprises a second air passage which is opened on the inner wall of the valve cavity and communicates with the assembly groove.
7. The silent air valve according to claim 1, characterized in that: A sealing buffer is arranged on one side of the movable valve core adjacent to the air inlet.
8. The silent air valve according to claim 1, characterized in that: An elastic member is provided, and the elastic action of the elastic member causes the movable valve core to seal against the air inlet.
9. The silent air valve according to any one of claims 1 to 8, characterized in that: The sound-absorbing component is a sponge sound-absorbing component or a grille sound-absorbing component.
10. A pneumatic comfort system, characterized in that: It comprises an air supply unit, a plurality of air bags and a gas distribution device, wherein the plurality of air bags are connected to the air supply unit through the gas distribution device, and the gas distribution device comprises the silent air valve according to any one of claims 1 to 9.