Fluid control device and pneumatic comfort system
By designing a fluid control device and combining the guide port with the medium flow channel, the problem that the solenoid valve cannot simultaneously and quickly inflate and deflate was solved, achieving the effect of rapid inflation and deflation, reducing energy consumption and improving the adjustment efficiency of the pneumatic comfort system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGTRING SEATING TECH INC
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-19
AI Technical Summary
Existing solenoid valves cannot simultaneously meet the needs of rapid inflation and rapid deflation. The inflation port is placed close to the air inlet, resulting in slow deflation, while the air inlet is placed close to the deflation port, resulting in slow inflation.
A fluid control device is designed, comprising a valve body, a valve core component, and a medium flow channel. By combining the guide port with the medium flow channel, fluid communication between the second medium opening and the first or third medium opening is achieved under different states, taking into account both rapid inflation and deflation.
It achieves rapid inflation and deflation, reduces airflow resistance, increases gas flow rate and velocity, reduces energy consumption, and improves the adjustment efficiency and reliability of the pneumatic comfort system.
Smart Images
Figure CN224260971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve body technology, and in particular to a fluid control device and a pneumatic comfort system. Background Technology
[0002] The seat comfort system includes an air pump, air valves, and air bags. The air pump controls the switching of air paths through the air valves to control the expansion and contraction of the air bags, thereby adjusting the seat contours to achieve massage, support, and other functions.
[0003] The gas valve is typically a solenoid valve, which includes a valve body, a moving valve core, a stationary iron core, and a coil. The valve body has a conduction chamber with an inlet and a vent at both ends. The coil drives the valve core to move within the conduction chamber through magnetic excitation, opening the inlet and closing the vent, or opening the vent and closing the inlet. Additionally, an inflation port communicating with the conduction chamber is provided for connection to the gas-consuming unit. The gas valve is in an intake state when the inflation port is connected to the open inlet, and in a venting state when the inflation port is connected to the open vent.
[0004] In this design, the inflation port is typically positioned close to the air inlet, resulting in fluid communication between the inflation and deflation ports only through the gap between the moving valve core and the inner wall of the guide chamber, which fails to meet the requirement for rapid deflation. Conversely, if the inflation port is positioned close to the deflation port, the requirement for rapid inflation cannot be met. Therefore, the solenoid valve in this technology cannot simultaneously achieve rapid inflation and rapid deflation. Utility Model Content
[0005] The present invention aims to provide a fluid control device and a pneumatic comfort system, which can at least improve the problem that existing solenoid valves cannot simultaneously handle rapid inflation and rapid deflation.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] In a first aspect, embodiments of the present invention provide a fluid control device, the fluid control device comprising a valve body, a valve core component, and a medium flow channel; the valve body is provided with a conduction chamber and a first medium opening, a second medium opening, and a third medium opening fluidly communicating with the conduction chamber; the valve core component is disposed in the conduction chamber; the fluid control device has a first venting state in which the valve core component is displaced to open the first medium opening and close the third medium opening, so that the second medium opening is fluidly communicating with the first medium opening, and a second venting state in which the valve core component is displaced to close the first medium opening and open the third medium opening, so that the second medium opening is fluidly communicating with the third medium opening; in the second venting state, the second medium opening is fluidly communicating with the third medium opening at least through the medium flow channel; the valve body is further provided with a guide seat, the guide seat having a guide hole and a conduction port, the guide hole being used to accommodate the telescopic movement of the valve core component, the guide hole being fluidly communicating with the third medium opening, and the conduction port connecting the guide hole to the medium flow channel.
[0008] In some embodiments, the guide port includes a slot formed in the sidewall of the guide hole.
[0009] In some embodiments, the through port is provided corresponding to the port of the medium flow channel.
[0010] In some embodiments, the fluid control device further includes a reset element for actuating the valve core component to normally close or normally open the first medium opening.
[0011] In some embodiments, the fluid control device further includes an actuating element, the actuating element including a coil; the coil, when energized, magnetizes and actuates the valve core component to open or close the first medium opening.
[0012] In some embodiments, the medium flow channel is provided in the valve body.
[0013] In some embodiments, the fluid control device further includes a housing, the valve body is connected to the housing, and the medium flow channel is disposed in the housing.
[0014] In some embodiments, when the valve core component is displaced to close the first medium opening and open the third medium opening, the second medium opening and the third medium opening are also in fluid communication through the conduction chamber.
[0015] In some embodiments, the fluid control device further includes a stationary iron core disposed in the conduction chamber; the valve core component includes a first moving valve core and a second moving valve core, one end of the second moving valve core passing through the stationary iron core and operatively connected to the first moving valve core; in the first venting state, the first moving valve core is displaced to open the first medium opening, and the second moving valve core is displaced to close the third medium opening; in the second venting state, the first moving valve core is displaced to close the first medium opening, and the second moving valve core is displaced to open the third medium opening.
[0016] In some embodiments, when the first moving valve core is displaced to open the first medium opening and the second moving valve core is displaced to close the third medium opening, there is a first gap between the first moving valve core and the stationary iron core.
[0017] In some embodiments, the second moving valve core is provided with a first step; the stationary iron core is provided with a second step at one end adjacent to the first moving valve core; when the first moving valve core is displaced to close the first medium opening and the second moving valve core is displaced to open the third medium opening, there is a second gap between the first step and the second step.
[0018] In some embodiments, the inner diameter of the through hole formed by the second step is smaller than the outer diameter of the first step.
[0019] Secondly, this utility model provides a pneumatic comfort system, which includes an air source device, an air-using unit, and a fluid control device as described in any of the above. The air source device is fluidly connected to the air-using unit through the fluid control device. The air source device is fluidly connected to the first medium opening, and the air-using unit is fluidly connected to the second medium opening.
[0020] The fluid control device of this invention is equipped with a medium flow channel. When the valve core component displaces and opens the first medium opening, the conduction chamber directly connects the second medium opening with the first medium opening in fluid communication. When the valve core component displaces and opens the third medium opening, the second medium opening is connected to the third medium opening in fluid communication through the medium flow channel. Therefore, it can simultaneously achieve rapid inflation and rapid deflation.
[0021] The guide hole is connected to the medium flow channel through the guide port, which reduces the airflow from the gap between the guide seat and the inner wall of the guide chamber. This allows the gas in the medium flow channel to flow directly into the guide hole through the guide port and then into the third medium opening. This reduces airflow resistance, increases gas flow rate, shortens the gas flow path, and increases gas velocity, ensuring a large flow of gas.
[0022] In the fluid control device of this utility model embodiment, the valve core component can be configured to include a first moving valve core and a second moving valve core. The first moving valve core and the second moving valve core are respectively disposed on both sides of the stationary iron core. The second moving valve core passes through the stationary iron core and is kinetically connected to the first moving valve core. When the first moving valve core and the second moving valve core are actuated by the excitation action, the end faces of the first moving valve core and the second moving valve core near the stationary iron core can respectively generate a magnetic attraction with the stationary iron core with their entire surfaces, thereby improving the magnetic attraction effect and thus helping to reduce the voltage required for the excitation action of the actuating element and reduce energy consumption.
[0023] Furthermore, buffer pads are provided at the ends of the first and second moving valve cores that are far from the stationary iron core, so as to improve the sealing effect on the corresponding first and third medium openings, respectively.
[0024] In addition, a first moving valve core and a second moving valve core are set on both sides of the stationary iron core and are connected to each other. When either the first moving valve core or the second moving valve core is acted upon by an actuating element, it will have a promoting effect on the other in the same direction, which is conducive to further improving the sealing effect on the corresponding medium opening.
[0025] The pneumatic comfort system of this utility model embodiment is equipped with the above-mentioned fluid control device, which reduces energy consumption and thus reduces the overall operating cost of the pneumatic comfort system. At the same time, it ensures the reliability of fluid control, takes into account rapid inflation and deflation, improves the adjustment efficiency of the pneumatic comfort system, and enhances the user experience.
[0026] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model 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 utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description
[0027] 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.
[0028] Figure 1 This is a schematic diagram of the structure of the fluid control device according to an embodiment of the present invention;
[0029] Figure 2 This is a cross-sectional view of the fluid control device according to an embodiment of the present invention;
[0030] Figure 3 yes Figure 2 Exploded view of the fluid control device;
[0031] Figure 4 yes Figure 3A cross-sectional view of the first shell structure;
[0032] Figure 5 This is a cross-sectional view of a portion of the structure of the fluid control device according to an embodiment of the present invention;
[0033] Figure 6 This is an exploded view of a portion of the structure of the fluid control device according to an embodiment of the present invention.
[0034] The reference numerals in the detailed embodiments are as follows:
[0035] 100. Fluid control device;
[0036] 1. Valve body; 11. First housing; 111. First medium opening; 112. Second medium opening; 113. First insertion part; 1131. First flow channel; 114. Second insertion part; 1141. Second flow channel; 12. Second housing; 121. Third medium opening; 122. Guide seat; 1221. Guide hole; 1222. Through port; 13. Through chamber;
[0037] 2. Valve core components;
[0038] 21. First moving valve core; 211. First buffer pad;
[0039] 22. Second moving valve core; 221. Second buffer pad; 222. First step; 223. First core segment; 224. Second core segment;
[0040] 3. Actuating elements;
[0041] 4. Medium flow channel; 41. First insertion hole; 42. Second insertion hole;
[0042] 5. Outer casing;
[0043] 6. Stationary iron core; 61. Flange section; 62. Second step; 63. Through hole;
[0044] 7. Reset component. Detailed Implementation
[0045] To facilitate understanding of this utility model, it will be described in more detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model. 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 there may be one or more intervening elements between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or there may be one or more intervening elements between them.
[0046] 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 invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the invention, are intended to cover non-exclusive inclusion.
[0047] In the description of the embodiments of this utility model, 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 utility model 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0048] In the description of the embodiments of this utility model, 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 utility model. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly defined.
[0049] 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 invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0050] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0051] Please see Figure 1 This utility model provides a fluid control device 100.
[0052] Please see Figure 2 and Figure 3The fluid control device 100 includes a valve body 1 and a valve core component 2. The valve body 1 has a flow chamber 13 and a first medium opening 111, a second medium opening 112, and a third medium opening 121 that are in fluid communication with the flow chamber 13. The valve core component 2 is disposed within the flow chamber 13. The valve core component 2 is used to open or close the first medium opening 111. When the valve core component 2 opens the first medium opening 111, it correspondingly closes the third medium opening 121, and when the valve core component 2 closes the first medium opening 111, it correspondingly opens the third medium opening 121.
[0053] For valve body 1 mentioned above, please refer to Figures 3 to 5 The valve body 1 includes a first housing 11 and a second housing 12. The first housing 11 has a cavity within it. At the first end of the cavity, the first housing 11 has a first medium opening 111 and a second medium opening 112. The second end of the cavity extends to the outer surface of the first housing 11. The second housing 12 is installed on the first housing 11 and is at least partially located within the second end of the cavity. The second housing 12 seals the second end of the cavity. The second housing 12 and the first housing 11 enclose a conduction chamber 13. The second housing 12 has a third medium opening 121. The second housing 12 is detachable from the first housing 11, facilitating the installation and removal of the valve core component 2 into the conduction chamber 13. Optionally, the second housing 12 is fitted with a sealing ring, which is sandwiched between the first housing 11 and the second housing 12 to enhance the sealing effect of the conduction chamber 13.
[0054] In some embodiments, the fluid control device 100 has a state in which the valve core member 2 is displaced to open the first medium opening 111 and close the third medium opening 121, so that the second medium opening 112 is in fluid communication with the first medium opening 111; and a state in which the valve core member 2 is displaced to close the first medium opening 111 and open the third medium opening 121, so that the second medium opening 112 is in fluid communication with the third medium opening 121. For example, please refer to... Figures 2 to 4The fluid control device 100 also includes an actuating element 3, which may be disposed in the valve body 1. The actuating element 3 includes a coil, which, when energized, excites the valve core component 2 to open or close the first medium opening 111. It can be understood that when the valve core component 2 is displaced to open the first medium opening 111, it can simultaneously close the third medium opening 121, so that the second medium opening 112 and the third medium opening 121 are in fluid communication; when the valve core component 2 is displaced to close the first medium opening 111, it opens the third medium opening 121, so that the second medium opening 112 and the first medium opening 111 are in fluid communication. For example, a coil is wound around the valve body 1, and pins are connected to both ends of the coil; when a positive current is applied, the coil can be magnetized to drive the valve core component 2 to move toward the first medium opening 111, so that the valve core component 2 abuts against the end of the first medium opening 111 to close the first medium opening 111, and the valve core component 2 moves away from the third medium opening 121 to open the third medium opening 121 by displacement; while when a reverse current is applied, the coil can be magnetized to drive the valve core component 2 to move toward the third medium opening 121, so that the valve core component 2 abuts against the end of the third medium opening 121 to close the third medium opening 121, and moves away from the first medium opening 111 to open the first medium opening 111 by displacement.
[0055] The state in which the first medium opening 111 and the second medium opening 112 are in fluid communication can be defined as the first ventilation state, such as the inflation state; the state in which the second medium opening 112 and the third medium opening 121 are in fluid communication can be defined as the second ventilation state, such as the deflation state.
[0056] The valve core component 2 can be a permanent magnet or a ferromagnetic material. When the coil excites the valve core component 2 by changing the direction of the magnetic field, the valve core component 2 is a permanent magnet; when the coil is used to magnetize the valve core component 2 and changes the direction of the magnetic field to change the direction of the magnetic poles of the valve core component 2 to drive the valve core component 2 to move in different directions, the valve core component 2 can be a ferromagnetic material.
[0057] In some embodiments, please refer to Figure 2The fluid control device 100 also includes a medium flow channel 4; when the valve core component 2 is displaced to close the first medium opening 111 and open the third medium opening 121, i.e., in the second venting state, the medium flow channel 4 fluidly connects the second medium opening 112 and the third medium opening 121, so that the second medium opening 112 and the third medium opening 121 can achieve high flow conduction; the first medium opening 111 and the second medium opening 112 can usually be opened on the same side of the valve body 1. When the valve core component 2 is displaced to open the first medium opening 111 and close the third medium opening 121, i.e., in the first venting state, the conduction chamber 13 fluidly connects the second medium opening 112 and the first medium opening 111. For example, one end of the medium flow channel 4 is in fluid communication with the second medium opening 112 via the end of the conducting chamber 13 adjacent to the second medium opening 112, and the other end of the medium flow channel 4 is in fluid communication with the third medium opening 121 via the end of the conducting chamber 13 adjacent to the third medium opening 121. The first medium opening 111 is also in fluid communication with the end of the conducting chamber 13 adjacent to the second medium opening 112. The medium flow channel 4 is provided independently of the conducting chamber 13. This arrangement allows the second medium opening 112 and the third medium opening 121 to bypass the gap between the valve core component 2 and the inner wall of the conducting chamber 13, thus achieving high-flow-rate fluid communication.
[0058] In the first ventilation state, the second medium opening 112 is fluidly connected to the first medium opening 111 through one end of the conducting chamber 13, allowing a large amount of gas to flow between the two openings. In the second ventilation state, the medium flow channel 4 fluidly connects the second medium opening 112 to the third medium opening 121, allowing a large amount of gas to flow between them. It is understood that in practical use, the first medium opening 111 and the third medium opening 121 can be defined as an air inlet and an air outlet, respectively, while the second medium opening 112 is defined as an inflation port for connection to the gas-using unit. Therefore, the fluid control device 100 of this embodiment can accommodate both rapid inflation and rapid deflation.
[0059] In some embodiments, the first medium opening 111 is used for air intake, that is, to fill the conduction chamber 13 with gas; the third medium opening 121 is used for air release, that is, to discharge gas from the conduction chamber 13. The second medium opening 112 can be used for air filling, that is, for connection with the gas-using unit.
[0060] In some embodiments, when the valve core component 2 is displaced to close the first medium opening 111 and open the third medium opening 121, the second medium opening 112 and the third medium opening 121 are also in fluid communication through the conduction chamber 13. Exemplarily, there is a gap between the valve core component 2 and the inner wall of the conduction chamber 13, so that the second medium opening 112 and the third medium opening 121 are also in fluid communication through the conduction chamber 13. Increasing the gas flow rate between the second medium opening 112 and the third medium opening 121 can improve the venting efficiency when the third medium opening 121 is used for venting, and improve the inflation efficiency when the third medium opening 121 is used for inflation.
[0061] In some embodiments, the medium flow channel 4 is disposed on the valve body 1, and the medium flow channel 4 and the conduction chamber 13 are independent channels. For example, the medium flow channel 4 can be injection molded onto the valve body 1 during the valve body 1 molding process.
[0062] In some other embodiments, the medium flow channel 4 may also be independent of the valve body 1. For example, see [link to relevant documentation]. Figure 2 The fluid control device 100 also includes a housing 5 for encapsulating and protecting the entire device. The valve body 1 is connected to the housing 5, and the medium flow channel 4 is disposed on the housing 5. Specifically, the medium flow channel 4 can be integrally formed on the housing 5 during the molding process. By disposing of the medium flow channel 4 on the housing 5 and assembling it with the valve body 1, the difficulty of opening the medium flow channel 4 can be reduced, thereby reducing the production cost of the fluid control device 100.
[0063] In some embodiments, please refer to Figure 2The valve body 1 is provided with a first insertion part 113 and a second insertion part 114. The medium flow channel 4 includes a first insertion hole 41 and a second insertion hole 42. The first insertion part 113 is inserted into the first insertion hole 41, and the second insertion part 114 is inserted into the second insertion hole 42. The first insertion part 113 is provided with a first flow channel 1131, and the second insertion part 114 is provided with a second flow channel 1141. The first flow channel 1131 is fluidly connected to the medium flow channel 4 and the second medium opening 112. The second flow channel 1141 is fluidly connected to the medium flow channel 4 and the third medium opening 121. In this configuration, one end of the first flow channel 1131 is fluidly connected to the second medium opening 112 via the end of the conducting chamber 13 near the second medium opening 112, and the other end of the first flow channel 1131 is fluidly connected to the medium flow channel 4 via the first insertion part 113 inserted into the first insertion hole 41. One end of the second flow channel 1141 is fluidly connected to the third medium opening 121 via the end of the conducting chamber 13 near the third medium opening 121, and the other end of the second flow channel 1141 is fluidly connected to the medium flow channel 4 via the second insertion part 114 inserted into the second insertion hole 42. Optionally, a sealing ring may be provided between the first insertion part 113 and the inner wall of the first insertion hole 41, and a sealing ring may be provided between the second insertion part 114 and the inner wall of the second insertion hole 42, to enhance the sealing effect of the insertion and prevent air leakage during assembly.
[0064] In some embodiments, for a fluid control device 100 composed of multiple valve bodies 1, multiple media channels 4 corresponding to the multiple valve bodies 1 can be arranged side by side in the housing 5. The multiple valve bodies 1 are respectively inserted into the multiple media channels 4 of the housing 5, making the fluid control device 100 compact and easy to assemble. Moreover, when the third media opening 121 serves as a vent, the third media openings 121 of the multiple valve bodies 1 can be interconnected to achieve centralized venting.
[0065] In some embodiments, the fluid control device 100 includes a plurality of valve bodies 1, wherein each valve body 1 is provided with corresponding fluid control components such as the valve core component 2 and the actuating element 3, so that each valve body 1 can independently realize air path control. The plurality of valve bodies 1 are mounted on the housing 5, which improves the integration of the fluid control device 100.
[0066] In some embodiments, the first medium openings 111 of the plurality of valve bodies 1 are in fluid communication with each other. When the first medium opening 111 is used as an air inlet, the first medium openings 111 of the plurality of valve bodies 1 can achieve unified air intake; when the first medium opening 111 is used as an air outlet, the first medium openings 111 of the plurality of valve bodies 1 can achieve unified air exhaust.
[0067] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 6The valve body 1 has a guide seat 122 on the inner wall of the conduction chamber 13. The guide seat 122 has a guide hole 1221, which is used to accommodate the telescopic movement of the valve core component 2. The guide hole 1221 is in fluid communication with the third medium opening 121. Exemplarily, the second housing 12 has a guide seat 122 on the side facing the valve core component 2. The guide seat 122 is cylindrical and extends from the end of the second housing 12 toward the valve core component 2 into the conduction chamber 13, thereby guiding the end of the valve core component 2 so that the valve core component 2 can slide stably within the valve body 1. A gap may exist between the guide hole 1221 and the valve core component 2 to allow gas to flow between the third medium opening 121 and the conduction chamber 13.
[0068] Furthermore, a gap exists between the guide seat 122 and the inner wall of the guide chamber 13, allowing the airflow from the medium channel 4 to flow through this gap into the guide hole 1221 and then into the third medium opening 121. However, this gap is typically small and makes the gas flow path tortuous, reducing the gas flow rate between the medium channel 4 and the third medium opening 121, and increasing airflow resistance, thus reducing the gas velocity. In some embodiments, please refer to... Figure 2 , Figure 3 and Figure 6 The guide seat 122 is provided with a through port 1222, which connects the guide hole 1221 to the medium flow channel 4. When the valve core component 2 is displaced to close the first medium opening 111 and open the third medium opening 121, the medium flow channel 4 connects the second medium opening 112 and the third medium opening 121 through at least the through port 1222 and the guide hole 1221. For example, the through port 1222 includes a slot on the side wall of the guide seat 122, and the through port 1222 can be specifically set to correspond to the port of the medium flow channel 4, such as being set to correspond to the port of the second flow channel 1141 in the positive direction, thereby connecting the space between the valve core component 2 and the third medium opening 121 to the medium flow channel 4, so as to connect the third medium opening 121 to the medium flow channel 4. The guide hole 1221 is fluidly connected to the medium flow channel 4 through the guide port 1222, reducing the airflow passing through the gap between the guide seat 122 and the guide chamber 13. This allows the gas in the medium flow channel 4 to flow directly into the guide hole 1221 through the guide port 1222, and then into the third medium opening 121. This reduces airflow resistance, increases gas flow rate, shortens the gas flow path, and increases gas velocity, ensuring a large flow rate of gas. A gap may exist between the guide hole 1221 and the valve core component 2. The guide port 1222, corresponding to the port of the medium flow channel 4, further reduces airflow resistance and increases gas flow rate. Optionally, the slot is cuboid in shape and extends through the side wall of the guide seat 122 along its axial direction.
[0069] The valve core component 2 described above can be a one-piece molded component or a component composed of multiple segments connected together.
[0070] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 6 The fluid control device 100 also includes a stationary iron core 6, which is disposed within the conduction chamber 13. The valve core component 2 includes a first moving valve core 21 and a second moving valve core 22, both disposed within the conduction chamber 13. The first end of the second moving valve core 22 passes through the stationary iron core 6 and is operatively connected to the first moving valve core 21. When actuated by the actuating element 3, the first moving valve core 21 and the second moving valve core 22 move in the same direction. The first moving valve core 21 is used to open or close the first medium opening 111, and the second moving valve core 22 correspondingly closes or opens the third medium opening 121. For example, in the first venting state, the first moving valve core 21 moves to open the first medium opening 111, and the second moving valve core 22 moves to close the third medium opening 121; in the second venting state, the first moving valve core 21 moves to close the first medium opening 111, and the second moving valve core 22 moves to open the third medium opening 121.
[0071] For the aforementioned stationary iron core 6, please refer to Figure 5 and Figure 6 The stationary iron core 6 is cylindrical, allowing the first end of the second moving valve core 22 to pass through the stationary iron core 6 and connect operatively with the first moving valve core 21. In this embodiment, the stationary iron core 6 is made of a ferromagnetic material, such as iron, cobalt, nickel, their alloys, and some oxides.
[0072] In some embodiments, please refer to Figure 5 and Figure 6 A flange 61 is provided at one end of the stationary iron core 6 near the second housing 12, and the flange 61 is clamped between the first housing 11 and the second housing 12. This defines the position of the stationary iron core 6 within the conduction chamber 13 and facilitates the assembly and disassembly of the stationary iron core 6. For example, the flange 61 is clamped between the first housing 11 and the guide seat 122. The above-mentioned arrangement of the stationary iron core 6 extends the gap between the guide seat 122 and the conduction chamber 13 to the gap between the stationary iron core 6 and the inner wall of the conduction chamber 13, increasing the travel distance of gas from the medium flow channel 4 through this gap to the third medium opening 121. The arrangement of the conduction port 1222 can better alleviate the problems of air resistance and airflow speed reduction caused by this travel distance.
[0073] For the first moving valve core 21 mentioned above, please refer to Figure 2 , Figure 3 and Figure 6The first moving valve core 21 is cylindrical and is disposed within the conduction chamber 13, specifically within the space defined by the first medium opening 111 and the stationary iron core 6. Furthermore, the distance between the end face of the first medium opening 111 and the stationary iron core 6 is greater than the length of the first moving valve core 21, allowing the first moving valve core 21 to slide within the space defined by the first medium opening 111 and the stationary iron core 6, enabling it to open and close the first medium opening 111 by displacement.
[0074] In some embodiments, please refer to Figure 3 and Figure 6 The first end of the first moving valve core 21 is provided with a first buffer pad 211. The first buffer pad 211 enhances the sealing effect on the first medium opening 111. Optionally, the first buffer pad 211 is made of rubber or silicone.
[0075] For the second moving valve core 22 mentioned above, please refer to Figure 2 , Figure 3 and Figure 6 The second moving valve core 22 is rod-shaped and passes through the stationary iron core 6, allowing it to slide relative to the stationary iron core 6. This allows it to open or close the third medium opening 121 by displacement. The second moving valve core 22 at least partially passes through the stationary iron core 6. The first end of the second moving valve core 22 can be connected to the first moving valve core 21, for example, by bonding, threading, or snap-fitting. The second moving valve core 22 and the first moving valve core 21 can also abut against each other.
[0076] In some embodiments, please refer to Figure 3 and Figure 6 The second end of the second valve core 22 is provided with a second buffer pad 221. The second buffer pad 221 enhances the sealing effect on the third medium opening 121. Optionally, the second buffer pad 221 is made of rubber or silicone.
[0077] In some embodiments, the actuating element 3 includes a coil. When energized, the coil magnetizes and actuates the first moving valve core 21 and the second moving valve core 22. For example, when energized, the coil magnetizes and actuates the first moving valve core 21 to open the first medium opening 111 and actuates the second moving valve core 22 to close the third medium opening 121; or, when energized, the coil magnetizes and actuates the first moving valve core 21 to close the first medium opening 111 and actuates the second moving valve core 22 to open the third medium opening 121. The coil is wound around the valve body 1, and pins are connected to both ends of the coil. When energized, the coil magnetizes and drives the first moving valve core 21 to close or open the first medium opening 111. For example, when a positive current is applied, the coil can be energized to drive the first moving valve core 21 to move toward the first medium opening 111 and drive the second moving valve core 22 to move, such that the first moving valve core 21 abuts against the end of the first medium opening 111 to close the first medium opening 111, and the second moving valve core 22 moves away from the third medium opening 121 to open the third medium opening 121 by displacement; and when a reverse current is applied, the coil can be energized to drive the first moving valve core 21 to move toward the third medium opening 121 and drive the second moving valve core 22 to move, such that the second moving valve core 22 abuts against the end of the third medium opening 121 to close the third medium opening 121, and the first moving valve core 21 moves away from the first medium opening 111 to open the first medium opening 111 by displacement.
[0078] The first moving valve core 21 can be a permanent magnet or a ferromagnetic material. When the coil excites the first moving valve core 21 by changing the direction of the magnetic field, the first moving valve core 21 is a permanent magnet; when the coil is used to magnetize the first moving valve core 21 and changes the direction of the magnetic field to change the direction of the magnetic poles of the first moving valve core 21 to drive the first moving valve core 21 to move in different directions, the first moving valve core 21 can be a ferromagnetic material.
[0079] The second moving valve core 22 can be a permanent magnet or a ferromagnetic material. When the second moving valve core 22 is driven by the first moving valve core 21, the second moving valve core 22 can be a permanent magnet or a ferromagnetic material to increase the force on the first moving valve core 21 and the second moving valve core 22 as a whole, thereby enhancing the overall driving effect on the first moving valve core 21 and the second moving valve core 22. When the coil excites the second moving valve core 22 by changing the direction of the magnetic field, the second moving valve core 22 is a permanent magnet. When the coil is used to magnetize the second moving valve core 22 and changes the direction of the magnetic field to change the direction of the magnetic poles of the second moving valve core 22 to drive the second moving valve core 22 to move in different directions, the second moving valve core 22 can be a ferromagnetic material.
[0080] In some embodiments, please refer to Figure 2 and Figure 3The fluid control device 100 further includes a reset member 7, which actuates the valve core member 2 to normally close or normally open the first medium opening 111, such as normally closing the first medium opening 111 and normally opening the third medium opening 121, or normally closing the third medium opening 121 and normally opening the first medium opening 111. Exemplarily, one end of the reset member 7 abuts against the second housing 12 and the other end abuts against the valve core member 2, thereby applying a thrust toward the first medium opening 111 to the valve core member 2, causing the valve core member 2 to displace and open the third medium opening 121, and close the first medium opening 111; or, one end of the reset member 7 abuts against the first housing 11 and the other end abuts against a side portion of the valve core member 2 facing the first medium opening 111, thereby applying a thrust toward the third medium opening 121 to the valve core member 2, causing the valve core member 2 to displace and open the first medium opening 111, and close the third medium opening 121. Wherein, the valve core component 2 normally closes the first medium opening 111, which means that when the coil is not energized, the valve core component 2 always maintains displacement to close the first medium opening 111; the valve core component 2 normally opens the first medium opening 111, which means that when the coil is not energized, the valve core component 2 always maintains displacement to open the first medium opening 111.
[0081] In some embodiments, the reset element 7 is a spring.
[0082] In some embodiments, for the valve core component 2 including the first moving valve core 21 and the second moving valve core 22, the reset member 7 is used to actuate the second moving valve core 22 to normally open the third medium opening 121, and the action of the second moving valve core 22 causes the first moving valve core 21 to normally close the first medium opening 111. For example, please refer to... Figure 2 One end of the reset member 7 abuts against the second housing 12, and the other end abuts against the second moving valve core 22, thereby applying a thrust toward the first medium opening 111 to the second moving valve core 22. This causes the second moving valve core 22 to displace and open the third medium opening 121, and the second moving valve core 22 abuts against the first moving valve core 21. Therefore, the action of the second moving valve core 22 will cause the first moving valve core 21 to displace and close the first medium opening 111. The first moving valve core 21 normally closing the first medium opening 111 means that when the coil is not energized, the first moving valve core 21 always maintains its displacement and closes the first medium opening 111; the second moving valve core 22 normally opening the third medium opening 121 means that when the coil is not energized, the second moving valve core 22 always maintains its displacement and opens the third medium opening 121.
[0083] In this embodiment, the first moving valve core 21 can be made of a ferromagnetic material, meaning the coil is sufficient to excite and drive the first moving valve core 21 to move toward the third medium opening 121. For example, the coil magnetizes the first moving valve core 21, and the magnetized first moving valve core 21 generates a magnetic attraction with the stationary iron core 6, causing the first moving valve core 21 to move toward the third medium opening 121. The second moving valve core 22 moves toward the third medium opening 121 under the excitation of the coil and the promoting effect of the first moving valve core 21, and overcomes the force of the reset member 7 to close the third medium opening 121.
[0084] In this embodiment, the first moving valve core 21 and the second moving valve core 22 may simply abut against each other without being connected.
[0085] In some other embodiments, the reset member 7 can abut against the second housing 12 at one end and against the first moving valve core 21 at the other end, thereby applying a thrust toward the first medium opening 111 to the first moving valve core 21, causing the first moving valve core 21 to displace and close the first medium opening 111, and the action of the first moving valve core 21 causes the second moving valve core 22 to displace and open the third medium opening 121. In this embodiment, the first moving valve core 21 and the second moving valve core 22 need to be interconnected and able to transmit tensile force.
[0086] In some other embodiments, the reset member 7 is used to actuate the first moving valve core 21 to normally open the first medium opening 111, and through the action of the first moving valve core 21, to cause the second moving valve core 22 to normally close the third medium opening 121. Exemplarily, one end of the reset member 7 abuts against the first housing 11, and the other end abuts against the side of the first moving valve core 21 away from the second moving valve core 22, thereby applying a thrust toward the second moving valve core 22 to the first moving valve core 21, causing the second moving valve core 22 to displace and close the third medium opening 121, and causing the first moving valve core 21 to displace and open the first medium opening 111. Wherein, the second moving valve core 22 normally closing the third medium opening 121 means that when the coil is not energized, the second moving valve core 22 always closes the third medium opening 121; the first moving valve core 21 normally opening the first medium opening 111 means that when the coil is not energized, the first moving valve core 21 always opens the first medium opening 111.
[0087] In this embodiment, the second moving valve core 22 can be made of a ferromagnetic material; that is, the coil only needs to be able to excite and drive the second moving valve core 22 to move toward the first medium opening 111. For example, the coil magnetizes the second moving valve core 22, and the magnetized second moving valve core 22 generates a magnetic attraction force with the second step 62 of the stationary iron core 6 in the following embodiment, causing the second moving valve core 22 to move toward the first medium opening 111. Under the excitation drive of the coil and the promoting effect of the second moving valve core 22, the first moving valve core 21 moves toward the first medium opening 111 and overcomes the force of the reset member 7, thus closing the first medium opening 111. Furthermore, in this embodiment, the first moving valve core 21 and the second moving valve core 22 can simply abut against each other without being connected.
[0088] In this embodiment of the invention, a first moving valve core 21 and a second moving valve core 22 are provided, with the first moving valve core 21 and the second moving valve core 22 respectively disposed on both sides of a stationary iron core 6. The first end of the second moving valve core 22 passes through the stationary iron core 6 and is kinetically connected to the first moving valve core 21. The stationary iron core 6 has a through hole 63 for accommodating the first end of the second moving valve core 22. The peripheral end face of the through hole 63 near the first moving valve core 21 can be used to magnetically attract the second end of the magnetized first moving valve core 21. The through hole 63 is close to the second moving valve core 22. The peripheral end faces of both valves can be used to magnetically attract the first end of the magnetized second moving valve core 22. When the actuator 3 excites the first moving valve core 21 and the second moving valve core 22, the end faces of the first moving valve core 21 and the second moving valve core 22 near the stationary iron core 6 can all magnetically attract the stationary iron core 6, improving the magnetic attraction effect and enhancing the excitation effect of the actuator 3 under the same voltage. This helps to reduce the voltage required for the excitation of the actuator 3, reduce energy consumption, and improve the problem of increased energy consumption of the fluid control device 100. Moreover, buffer pads can be provided at the ends of the first moving valve core 21 and the second moving valve core 22 away from the stationary iron core 6 to improve the sealing effect on the corresponding first medium opening 111 and third medium opening 121, respectively. In addition, a first moving valve core 21 and a second moving valve core 22 are provided on both sides of the stationary iron core 6 for functional connection. When either the first moving valve core 21 or the second moving valve core 22 is acted upon by the actuating element 3, it will have a unidirectional promoting effect on the other, which is conducive to further improving the sealing effect on the corresponding medium opening.
[0089] In some embodiments, please refer to Figure 2 The valve is configured such that when the first moving valve core 21 opens the first medium opening 111 and the second moving valve core 22 closes the third medium opening 121, there is a first gap between the first moving valve core 21 and the stationary iron core 6. This ensures that the first moving valve core 21 pushes the second moving valve core 22 into place, avoiding the problem that the first moving valve core 21 is pressed against the stationary iron core 6, preventing the second moving valve core 22 from being further moved to effectively close the third medium opening 121.
[0090] In some embodiments, please refer to Figures 2 to 4 The second moving valve core 22 is provided with a first step 222. A reset member 7 is sleeved on the second moving valve core 22, with one end abutting against the first step 222, and the other end abutting against the second housing 12. This facilitates the installation of the reset member 7. It can be understood that the first step 222 is located on the outer circumferential surface of the second moving valve core 22.
[0091] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 5 A second step 62 is provided at one end of the stationary iron core 6 adjacent to the first moving valve core 21. When the first moving valve core 21 displaces to close the first medium opening 111 and the second moving valve core 22 displaces to open the third medium opening 121, a second gap exists between the first step 222 and the second step 62. It is understood that the second step 62 is located on the inner circumferential surface of the stationary iron core 6. It is understood that the inner diameter of the through hole 63 formed by the second step 62 can be smaller than the outer diameter of the first step 222; when the inner diameter of the through hole 63 is smaller than the outer diameter of the first step 222, the first step 222 cannot pass through the through hole 63. When the first step 222 cannot pass through the through hole 63, by creating a second gap between the first step 222 and the second step 62, it is ensured that the second moving valve core 22 pushes the first moving valve core 21 into place, avoiding the problem that the first moving valve core 21 cannot be further moved to effectively close the first medium opening 111 due to the first step 222 abutting against the second step 62. Optionally, the second gap is larger than the first gap.
[0092] In some embodiments, the inner diameter of the through hole 63 is smaller than the outer diameter of the first step 222, which increases the magnetic attraction area between the second moving valve core 22 and the stationary iron core 6, and between the first moving valve core 21 and the stationary iron core 6, thereby improving the magnetic attraction effect and further reducing energy consumption.
[0093] In some embodiments, please refer to Figure 2 , Figure 5 and Figure 6 The second moving valve core 22 includes a first core segment 223 and a second core segment 224 connected in sequence. The outer diameter of the first core segment 223 is smaller than the outer diameter of the second core segment 224. The first core segment 223 passes through a through hole 63 formed by the second step 62. The inner diameter of the through hole 63 is smaller than the outer diameter of the second core segment 224. By setting the first core segment 223 with a smaller outer diameter, the inner diameter of the through hole 63 can be reduced, ensuring the end face area of the stationary iron core 6, that is, increasing the magnetic attraction area between the stationary iron core 6 and the first moving valve core 21 and the second moving valve core 22.
[0094] This utility model embodiment also provides a pneumatic comfort system, which includes an air source device (not shown), an air-using unit (not shown), and a fluid control device 100. The air source device is fluidly connected to the air-using unit through the fluid control device 100: wherein the air source device is fluidly connected to a first medium opening 111, and the air-using unit is fluidly connected to a second medium opening 112. The fluid control device 100 is used to communicate with the air source device and the air-using unit, and to control the opening and closing of the air passage between the air source device and the air-using unit, as well as 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. Optionally, the air source device is an air pump, and the air-using unit is an air bag. By controlling the inflation and deflation of the air bag, pneumatic massage, support, and other pneumatic adjustments can be achieved.
[0095] The pneumatic comfort system of this utility model embodiment is equipped with a fluid control device 100, thereby reducing the overall operating cost of the pneumatic comfort system, ensuring the reliability of fluid control, and taking into account rapid inflation and deflation, improving the adjustment efficiency of the pneumatic comfort system and enhancing the user experience.
[0096] 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 or air compressor, and the air-using unit can be an air bag. The fluid control device 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, achieving pneumatic comfort adjustment. The inclusion of the fluid control device 100 in the pneumatic comfort system improves the adjustment efficiency of the system and enhances the user experience.
[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, 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 utility model as described above. For the sake of brevity, they are not provided in detail; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to 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 utility model.
Claims
1. A fluid control device, characterized in that, It includes a valve body, a valve core component, and a medium flow channel; the valve body is provided with a flow chamber and a first medium opening, a second medium opening, and a third medium opening that are in fluid communication with the flow chamber; the valve core component is disposed in the flow chamber; The fluid control device has a first ventilated state in which the valve core component is displaced to open the first medium opening and close the third medium opening, so that the second medium opening is in fluid communication with the first medium opening; and a second ventilated state in which the valve core component is displaced to close the first medium opening and open the third medium opening, so that the second medium opening is in fluid communication with the third medium opening. In the second ventilation state, the second medium opening is in fluid communication with the third medium opening at least through the medium flow channel; The valve body is also provided with a guide seat, the guide seat is provided with a guide hole and a through port, the guide hole is used to accommodate the extension and retraction of the valve core component, the guide hole is in fluid communication with the third medium opening, and the through port connects the guide hole to the medium flow channel.
2. The fluid control device according to claim 1, characterized in that, The guide port includes a slot formed in the side wall of the guide hole.
3. The fluid control device according to claim 1, characterized in that, The through port is configured to correspond to the port of the medium flow channel.
4. The fluid control device according to claim 1, characterized in that, The fluid control device further includes a reset element, which is used to actuate the valve core component to either normally close or normally open the first medium opening.
5. The fluid control device according to claim 1, characterized in that, It also includes an actuating element, which includes a coil; When the coil is energized, it excites the valve core component to open or close the first medium opening.
6. The fluid control device according to claim 1, characterized in that, The medium flow channel is located in the valve body.
7. The fluid control device according to claim 1, characterized in that, The fluid control device also includes a housing, the valve body is connected to the housing, and the medium flow channel is located in the housing.
8. The fluid control device according to claim 1, characterized in that, When the valve core component is displaced to close the first medium opening and open the third medium opening, the second medium opening and the third medium opening are still in fluid communication through the conduction chamber.
9. The fluid control device according to any one of claims 1-8, characterized in that, The fluid control device also includes a stationary iron core, which is disposed in the conduction chamber; The valve core component includes a first moving valve core and a second moving valve core. One end of the second moving valve core passes through the stationary iron core and is operatively connected to the first moving valve core. In the first venting state, the first moving valve core is displaced to open the first medium opening, and the second moving valve core is displaced to close the third medium opening. In the second venting state, the first moving valve core is displaced to close the first medium opening, and the second moving valve core is displaced to open the third medium opening.
10. A pneumatic comfort system, characterized in that, The system includes a gas source device, a gas consumption unit, and a fluid control device 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 fluid control device. The gas source device is fluidly connected to the first medium opening, and the gas-using unit is fluidly connected to the second medium opening.