Fluid control device, valve module and pneumatic comfort system

Abstract

This utility model relates to the field of fluid distribution device technology, and discloses a fluid control device, valve module, and pneumatic comfort system. The fluid control device includes a distribution valve section, a switching valve section, and a pressure regulating valve section. The distribution valve section is used to control the directional delivery of fluid. The switching valve section is connected between the distribution valve section and the pressure regulating valve section, and is used to control the on / off state of the distribution valve section and the pressure regulating valve section. The switching valve section includes a switching valve chamber, a first connecting port, a second connecting port, and a switching valve core. The first connecting port and the second connecting port are connected to the switching valve chamber, and the first connecting port is connected to the distribution valve section. The second connecting port is connected to the pressure regulating valve section. The switching valve core is disposed in the switching valve chamber. The switching valve core closes the second connecting port in a first position and opens the second connecting port in a second position. The fluid control device provided by this utility model can achieve precise control of the intake air volume and active pressure relief and exhaust of the gas in the intake air path, realizing controllable active pressure regulation.

Description

Technical Field

[0001] This utility model relates to the field of fluid distribution device technology, and in particular to a fluid control device, valve module and pneumatic comfort system. Background Technology

[0002] In existing valve modules, pressure regulating valves are typically installed in series at the end of the intake air path, increasing the length of the intake air path and requiring a larger enclosure, thus increasing the overall size of the valve module. In space-constrained environments such as car seats, an excessively large valve module can lead to assembly difficulties or force the reduction of functionality to fit the installation space, thus reducing the user experience.

[0003] Furthermore, most existing pressure regulating valves are spring-loaded mechanical valves. Under normal conditions, the spring's elasticity keeps the valve core closed at the air inlet. However, when the air pressure in the intake path exceeds the spring's elastic force, the pressure overcomes the spring's elasticity and pushes the valve core open, allowing the air inlet to be opened for exhaust pressure regulation. This means that the air pressure in the intake path is constantly transmitted to the pressure regulating valve, which automatically opens when the pressure is too high. In other words, pressure relief occurs when the air pressure in the intake path increases, preventing pressure accumulation and only providing pressure relief protection. It cannot actively adjust the air pressure according to demand, thus preventing existing pressure regulating valves from achieving truly active pressure regulation for different air pressures and failing to meet the differentiated pressure control needs of different airbags. Utility Model Content

[0004] To overcome the problems in the prior art where the pressure regulating valve is installed in series at the end of the intake air path, resulting in an increased valve module size and the inability to achieve active pressure regulation, this utility model provides a fluid control device, a valve module, and a pneumatic comfort system.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] According to one objective of this utility model, a fluid control device is provided, including a distribution valve section, a switching valve section, and a pressure regulating valve section. The distribution valve section is used to control the directional delivery of fluid, and the switching valve section is connected between the distribution valve section and the pressure regulating valve section, and is used to control the on / off state of the distribution valve section and the pressure regulating valve section.

[0007] The switching valve section includes a switching valve chamber, a first connecting port, a second connecting port, and a switching valve core. The first connecting port and the second connecting port are connected to the switching valve chamber. The first connecting port is connected to the distribution valve section, and the second connecting port is connected to the pressure regulating valve section. The switching valve core is disposed in the switching valve chamber. The switching valve core closes the second connecting port in a first position and opens the second connecting port in a second position.

[0008] In some alternative implementations, the switching valve section further includes a switch housing and a switch actuator;

[0009] The switch valve chamber, the first communication port, and the second communication port are formed in the switch housing, and the switch actuator is used to actuate the switch valve core to the first position or to the second position.

[0010] In some alternative implementations, the switching valve section further includes a switch reset member, which is used to elastically cause the switching valve core to be normally in the second position or normally in the first position.

[0011] In some alternative implementations, the distribution valve includes a distribution housing, a distribution valve core, and a distribution actuator;

[0012] The distribution housing is provided with a distribution valve chamber and an inlet, a delivery port and a pressure relief port communicating with the distribution valve chamber. The inlet is used to connect to a fluid source, the delivery port is used to connect to a fluid actuation unit, and the pressure relief port is connected to the first communication port. The distribution valve core is disposed in the distribution valve chamber, and the distribution actuator is used to actuate the distribution valve core to open or close the inlet.

[0013] In some alternative implementations, the distribution valve section further includes a distribution reset element, which is used to elastically close or open the inlet of the distribution valve core.

[0014] In some alternative implementations, a connecting nozzle is also included, wherein the connecting nozzle has a connecting air passage that connects the distribution valve section and the switching valve section, and the first connecting port is located at the second end of the connecting air passage.

[0015] In some alternative implementations, the pressure regulating valve section includes a pressure regulating housing, a pressure regulating valve core, and a pressure regulating reset component;

[0016] The pressure regulating housing has a pressure regulating valve chamber, a pressure regulating port and a discharge port connected to the pressure regulating valve chamber. The pressure regulating port is connected to the second port, and the discharge port is used to connect to the external environment. The pressure regulating valve core is disposed in the pressure regulating valve chamber, and the pressure regulating reset member is used to elastically close the pressure regulating port by the pressure regulating valve core.

[0017] In some alternative implementations, the pressure regulating valve section includes a pressure regulating housing, a pressure regulating valve core, a pressure regulating reset component, and a pressure regulating actuator;

[0018] The pressure regulating housing has a pressure regulating valve chamber, a pressure regulating port and a discharge port connected to the pressure regulating valve chamber. The pressure regulating port is connected to the second port. The discharge port is used to connect to the external environment. The pressure regulating valve core is disposed in the pressure regulating chamber. The pressure regulating reset member is used to elastically close the discharge port normally by the pressure regulating valve core. The pressure regulating actuator is used to actuate the pressure regulating valve core to open the discharge port.

[0019] According to another objective of this utility model, a valve module is provided, comprising:

[0020] Fluid pipelines;

[0021] Several fluid valves;

[0022] And the fluid control device described above;

[0023] Several fluid valves are respectively connected to the fluid pipeline, and the delivery port of the fluid control device is connected to the fluid pipeline.

[0024] According to another objective of this utility model, a pneumatic comfort system is provided, comprising:

[0025] Gas supply unit;

[0026] Several gas-consuming units;

[0027] In addition to the valve module described above, the air supply unit is fluidly connected to the inlet of the fluid control device, and the plurality of air-consuming units are respectively connected to the plurality of fluid valves, with each fluid valve controlling the charging and discharging of each air-consuming unit.

[0028] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0029] The fluid control device provided by this utility model connects the pressure regulating valve to the pressure relief port of the distribution valve via the switching valve. The switching valve controls the on / off state of the distribution valve and the pressure regulating valve. When the switching valve controls the distribution valve and the pressure regulating valve to be in a closed-conducting state, the distribution valve accumulates pressure for air supply, enabling precise control of the intake air volume. When the switching valve is in a conducting state, and the switching valve controls the pressure regulating valve to be connected to the distribution valve, the pressure regulating valve can actively depressurize and exhaust the gas in the intake air path connected to the inlet of the distribution valve, instead of passively opening the spring due to air pressure. This allows the air pressure in the intake air path to be controlled and regulated, achieving controllable active pressure regulation and enabling the distribution and control of high and low pressure air sources. This solves the problem that the pressure regulating valve in the prior art cannot actively regulate pressure.

[0030] In addition, the fluid control device provided by this utility model reduces the length of the air intake path by connecting the pressure regulating valve part in series with the vent end of the distribution valve part through the switching valve part, thereby reducing the volume of the valve module package housing and making it easier to reduce the assembly volume of the valve module.

[0031] The valve module provided by this utility model allows the fluid control device to be arranged side by side with multiple fluid valves during valve module assembly. This avoids the extension of the air intake path caused by connecting the pressure regulating valve in series at the end of the fluid pipeline, effectively reducing the volume of the valve module, thereby reducing the space occupation rate of the valve module during use, and ensuring accurate pressure regulation of the air intake path.

[0032] The pneumatic comfort system provided by this utility model connects the air supply unit and the air consumption unit through the above-mentioned valve module, so as to achieve precise control of the air consumption unit's inflation, deflation or pressure maintenance, and the air pressure in the air intake path of the air consumption unit during the inflation process can be controlled and adjusted to achieve controllable active pressure regulation.

[0033] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical solution 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

[0034] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0035] Figure 1 A three-dimensional structural schematic diagram of the fluid control device provided in the embodiment of this utility model;

[0036] Figure 2 for Figure 1 A cross-sectional view of the fluid control device along plane AA;

[0037] Figure 3 for Figure 1 Another cross-sectional view of the fluid control device along plane AA;

[0038] Figure 4 for Figure 2 Enlarged schematic diagram of part a;

[0039] Figure 5 for Figure 2 Enlarged schematic diagram of part b;

[0040] Figure 6 for Figure 3 Enlarged schematic diagram of part c;

[0041] Figure 7for Figure 3 Enlarged schematic diagram of part d;

[0042] Figure 8 This is a schematic diagram of the structure of the pneumatic comfort system according to an embodiment of the present invention;

[0043] in,

[0044] 10. Distribution valve section;

[0045] 11. Distribute the casing;

[0046] 111. Distribution valve chamber; 112. Inlet; 113. Delivery port; 114. Pressure relief port;

[0047] 12. Distributor valve core; 13. Distributor actuator; 14. Distributor reset component; 15. First buffer shock absorber; 16. Air inlet nozzle; 17. Air outlet nozzle;

[0048] 20. Switch valve section;

[0049] 21. Switch housing;

[0050] 211. Switch valve chamber; 212. First connecting port; 213. Second connecting port;

[0051] 22. Switch valve core; 23. Switch actuator; 24. Switch reset component; 25. Second buffer shock absorber;

[0052] 30. Pressure regulating valve section;

[0053] 31. Pressure regulating housing;

[0054] 311. Pressure regulating valve chamber; 312. Pressure regulating connection port; 313. Discharge port;

[0055] 32. Pressure regulating valve core; 33. Pressure regulating reset component;

[0056] 40. Connect the air nozzle;

[0057] 41. Connecting airway; 42. First seal; 43. Second seal;

[0058] 50. Fluid pipelines;

[0059] 60. Fluid valve;

[0060] 70. Gas supply unit;

[0061] 80. Gas consumption unit.

[0062] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Detailed Implementation

[0063] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of this utility model can be combined with each other. The detailed description in the specific embodiments should be understood as an explanation of the spirit of this utility model and should not be regarded as an improper limitation of this utility model.

[0064] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the specific technical solutions of this utility model will be further described in detail below with reference to the accompanying drawings of the embodiments of this utility model. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0065] In the embodiments of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0066] Furthermore, in this embodiment of the utility model, directional terms such as "left" and "right" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0067] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0068] In embodiments of this invention, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0069] In this embodiment of the invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this embodiment of the invention should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0070] This utility model provides a fluid control device to overcome the problems in the prior art where the pressure regulating valve is installed in series at the end of the intake air path, resulting in an increased valve module size and the inability to achieve active pressure regulation.

[0071] This utility model provides a fluid control device, such as... Figure 1 , Figure 2 and Figure 3 As shown, it includes a distribution valve section 10, a switching valve section 20, and a pressure regulating valve section 30. The distribution valve section 10 is used to control the directional delivery of fluid. The switching valve section 20 is connected between the distribution valve section 10 and the pressure regulating valve section 30 and is used to control the on / off state of the distribution valve section 10 and the pressure regulating valve section 30.

[0072] In the embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 4 As shown, the distribution valve section 10 includes a distribution housing 11, a distribution valve core 12, and a distribution actuator 13.

[0073] The distribution housing 11 is provided with a distribution valve chamber 111 and an inlet 112, a delivery port 113 and a pressure relief port 114 communicating with the distribution valve chamber 111. The inlet 112 is used to connect to a fluid source, the delivery port 113 is used to connect to a fluid actuation unit, and the pressure relief port 114 is connected to the first communication port 212. The distribution valve core 12 is disposed in the distribution valve chamber 111. The distribution actuator 13 is used to actuate the distribution valve core 12 to open or close the inlet 112, and the distribution reset member 14 is used to elastically close or open the inlet 112 of the distribution valve core 12 in normal operation.

[0074] In this embodiment of the utility model, the distribution valve core 12 may be selected, but is not limited to, an iron core or a permanent magnet. In some embodiments, the distribution valve core 12 is provided with a permanent magnet. The distribution valve core 12 may be entirely made of a permanent magnet, that is, the whole is a permanent magnet, or partially made of a permanent magnet, that is, it includes a permanent magnet. When the distribution valve core 12 is partially made of a permanent magnet, that is, the permanent magnet is provided as a partial component on the distribution valve core 12.

[0075] The distribution actuator 13 includes a coil wound on the distribution housing 11, which generates a magnetic field when energized. The distribution valve core 12 is displaced under the excitation of the distribution actuator 13 to open or close the inlet 112.

[0076] In some alternative embodiments, a distribution groove is provided on the outer wall of the distribution housing 11, the distribution groove is arranged around the outer wall of the distribution housing 11, and the distribution actuator 13 is wound in the distribution groove.

[0077] In addition, pins are provided at both ends of the distribution actuator 13 to connect to the power supply.

[0078] The distribution actuator 13 can change the direction of the applied current to excite the distribution valve core 12, causing it to move between the closed inlet 112 and the open inlet 112 positions. Alternatively, a distribution reset member 14 can be provided to move the distribution valve core 12 to the open inlet 112 position after the distribution actuator 13 excites the distribution valve core 12 to the closed inlet 112 position and then de-energizes it; or to move the distribution valve core 12 to the closed inlet 12 position after the distribution actuator 13 excites the distribution valve core 12 to the open inlet 112 position and then de-energizes it.

[0079] In some embodiments, the distribution valve section 10 further includes a distribution reset member 14, which is disposed in the distribution valve chamber 111. The two ends of the distribution reset member 14 are connected to the distribution valve core 12 and the inner wall of the distribution valve chamber 111. The distribution reset member 14 elastically drives the distribution valve core 12 to close or open the inlet 112.

[0080] In this embodiment of the invention, the distribution reset member 14 may be, but is not limited to, a spring, a spring sheet, etc. Given that the elastic action of the distribution reset member 14 causes the distribution valve core 12 to normally close the inlet 112 or normally open the inlet 112, the distribution valve core 12 can be displaced to open or close the inlet 112 under the excitation of the distribution actuator 13. Specifically, the distribution actuator 13 typically actuates the distribution valve core 12 to overcome the elastic action of the distribution reset member 14 and displace it to either the position of closing the inlet 112 or the position of opening the inlet 112. The normal state is the state in which the distribution actuator 13 is not energized.

[0081] The working principle of the distribution valve 10 in this embodiment can be understood as follows: when the distribution valve 10 puts the distribution actuator 13 into the first energized state, the distribution actuator 13 generates a magnetic field, which causes the distribution valve core 12 to move and open the inlet 112 through the excitation effect, so as to connect the fluid actuator unit and the air intake passage; when the distribution valve 10 puts the distribution actuator 13 into the second energized state, the distribution valve core 12 closes the inlet 112 under the elastic drive of the distribution reset member 14, so as to cut off the fluid actuator unit and the air intake passage.

[0082] The first energized state of the distribution actuator 13 can be either a state in which a positive current is applied or a state in which a reverse current is applied; the second energized state of the distribution actuator 13 can be either a state in which the distribution actuator 13 is not energized or a state in which the distribution actuator 13 is de-energized.

[0083] In some optional embodiments, the distribution valve 10 further includes a first buffer damping member 15, which is disposed at the opposite end of the distribution valve core 12 and the inlet 112 to buffer the contact between the distribution valve core 12 and the distribution housing 11 when the distribution valve core 12 is displaced to close the inlet 112, thereby achieving shock absorption and noise reduction, and enhancing the sealing effect on the inlet 112.

[0084] In this embodiment, the first buffer shock absorber 15 is preferably made of silicone.

[0085] In some embodiments, please refer to the figure. Figure 1 , Figure 2 and Figure 5 As shown, the switching valve section 20 includes a switching valve chamber 211, a first connecting port 212, a second connecting port 213, and a switching valve core 22. The first connecting port 212 and the second connecting port 213 are connected to the switching valve chamber 211. The first connecting port 212 is connected to the distribution valve section 10, and the second connecting port 213 is connected to the pressure regulating valve section 30. The switching valve core 22 is disposed in the switching valve chamber 211. The switching valve core 22 closes the second connecting port 213 in a first position and opens the second connecting port 213 in a second position. When the switch valve core 22 closes the second connection port 213, the first connection port 212 and the second connection port 213 are disconnected from each other, thus cutting off the connection between the pressure regulating valve section 30 connected to the first connection port 212 and the distribution valve section 10 connected to the second connection port 213. Conversely, when the switch valve core 22 opens the second connection port 213, the first connection port 212 and the second connection port 213 are connected to each other, thus connecting the pressure regulating valve section 30 connected to the first connection port 212 and the distribution valve section 10 connected to the second connection port 213. Therefore, the switch valve section 20 controls the opening and closing of the distribution valve section 10 and the pressure regulating valve section 30.

[0086] In this embodiment of the present invention, the distribution valve 10 is responsible for controlling the directional delivery of fluid, such as directional delivery of fluid to the intake air passage and the fluid actuator connected to the intake air passage. The switching valve 20 is used to switch the distribution valve 10 and the pressure regulating valve 30 on and off. When the pressure regulating valve 30 is connected to the distribution valve 10, it is used to actively regulate the pressure of the intake air passage connected to the distribution valve 10 and the fluid actuator connected thereto.

[0087] The structural design of the switching valve section 20 allows the switching valve core 22 to switch positions. When the switching valve core 22 is in the first position, it closes the second communication port 213, cutting off the connection between the distribution valve section 10 and the pressure regulating valve section 30. When the switching valve core 22 is in the second position, it opens the second communication port 213, connecting the distribution valve section 10 and the pressure regulating valve section 30, thereby allowing fluid to enter the pressure regulating valve section 30.

[0088] In this embodiment of the utility model, see also Figure 1 , Figure 2 and Figure 5 The switching valve section 20 also includes a switch housing 21 and a switch actuator 23.

[0089] The switch valve chamber 211, the first connecting port 212 and the second connecting port 213 are opened in the switch housing 21. The switch actuator 23 is used to actuate the switch valve core 22 to the first position or to the second position.

[0090] In this embodiment of the present invention, the switch valve core 22 may be selected, but is not limited to, an iron core or a permanent magnet. In some embodiments, the switch valve core 22 is provided with a permanent magnet. The switch valve core 22 may be entirely made of a permanent magnet, that is, the entire switch valve core is a permanent magnet, or it may be partially made of a permanent magnet, that is, it includes a permanent magnet. When the switch valve core 22 is partially made of a permanent magnet, that is, the permanent magnet is provided as a partial component on the switch valve core 22.

[0091] The switch actuator 23 includes a coil wound on the switch housing 21 and generates a magnetic field when energized. The switch valve core 22 is displaced to a first position or a second position under the excitation of the switch actuator 23 to close or open the second communication port 213.

[0092] In some alternative embodiments, a switch wire groove is provided on the outer wall of the switch housing 21, the switch wire groove is arranged around the outer wall of the switch housing 21, and the switch actuator 23 is wound in the switch wire groove.

[0093] In addition, pins are provided at both ends of the switch actuator 23 to connect to a power supply.

[0094] The switch actuator 23 can switch the switch valve core 22 to a first position and a second position by changing the direction of the applied current. Alternatively, a switch reset component 24 can be provided to move the switch valve core 22 to the second position after the switch actuator 23 has moved the switch valve core 22 to the first position and then de-energized; or to move the switch valve core 22 to the first position after the switch actuator 23 has moved the switch valve core 22 to the second position and then de-energized.

[0095] In some embodiments, the switching valve section 20 further includes a switch reset member 24, which elastically actuates the switch valve core 22 to either a second position or a first position. Specifically, the switch actuator 23 typically actuates the switch valve core 22 to overcome the elastic action of the switch reset member 24 and displace it to the first or second position, whereby the normal state is the state in which the switch actuator 23 is not energized.

[0096] The switch reset member 24 is disposed in the switch valve chamber 211. The two ends of the switch reset member 24 are respectively connected to the switch valve core 22 and the inner wall of the switch valve chamber 211. The switch reset member 24 elastically drives the switch valve core 22 to close or open the second communication port 213.

[0097] In this embodiment of the utility model, the switch reset member 24 may be selected from, but is not limited to, a spring, a spring sheet, etc. Since the switch reset member 24 elastically acts to keep the switch valve core 22 normally in the second position or normally in the first position to open or close the second communication port 213, the switch valve core 22 can be displaced from the second position to the first position under the excitation of the switch actuator 23 to close the second communication port 213, or the switch valve core 22 can be displaced from the first position to the second position under the excitation of the switch actuator 23 to open the second communication port 213.

[0098] The working principle of the switching valve section 20 in this embodiment can be understood as follows: when the switching valve section 20 puts the switch actuator 23 into the third energized state, the switch actuator 23 generates a magnetic field, which causes the switch valve core 22 to move and open the second communication port 213 through the excitation effect, so as to connect the distribution valve section 10 and the pressure regulating valve section 30; when the switching valve section 20 puts the switch actuator 23 into the fourth energized state, the switch valve core 22 closes the second communication port 213 under the elastic drive of the switch reset member 24, so as to cut off the connection between the distribution valve section 10 and the pressure regulating valve section 30.

[0099] Among them, the switch actuator 23 is in the third energized state, which can be the switch actuator 23 being in the state of receiving a positive current or the switch actuator 23 being in the state of receiving a reverse current; the switch actuator 23 is in the fourth energized state, which can be the switch actuator 23 being in the state of not being energized or the switch actuator 23 being in the state of being de-energized.

[0100] In some optional embodiments, the switching valve section 20 further includes a second buffer damping member 25, which is disposed at the opposite end of the switching valve core 22 and the second communication port 213, so as to buffer the contact between the switching valve core 22 and the switching housing 21 when the switching valve core 22 is displaced to close the second communication port 213, thereby achieving shock reduction and noise reduction, and enhancing the sealing effect on the second communication port 213.

[0101] In this embodiment of the utility model, the second buffer shock absorber 25 is preferably made of silicone.

[0102] For a preferred embodiment, please refer to Figure 2 , Figure 3 and Figure 6 As shown, the fluid control device also includes a connecting nozzle 40.

[0103] like Figure 6 As shown, the connecting nozzle 40 has a connecting air passage 41 that connects the distribution valve section 10 and the switching valve section 20. Specifically, the first end of the connecting nozzle 40 is embedded in the distribution valve chamber 111, and the second end of the connecting nozzle 40 is embedded in the switching valve chamber 211, so that the distribution valve chamber 111 and the switching valve chamber 211 are connected through the connecting air passage 41, thereby realizing fluid communication between the distribution valve section 10 and the switching valve section 20.

[0104] In some embodiments, the first connection port 212 is formed at the second end of the connecting airway 41. In other embodiments, the pressure relief port 114 is formed at the first end of the connecting airway 41.

[0105] In a preferred embodiment, the second end of the switch reset member 24 is positioned within the first communication port 212 to ensure that the switch reset member 24 is not offset in the axial direction, thereby ensuring the accuracy of the switch reset member 24 during reset and further ensuring the accuracy of the switch valve core 22 during displacement; the second end of the distribution reset member 14 is positioned within the pressure relief port 114 to ensure that the distribution reset member 14 is not offset in the axial direction, thereby ensuring the accuracy of the distribution reset member 14 during reset and further ensuring the accuracy of the distribution valve core 12 during displacement.

[0106] In some alternative embodiments, the first end of the connecting nozzle 40 is sealed to the inner wall of the distribution valve chamber 111 via the first seal 42, and the second end of the connecting nozzle 40 is sealed to the inner wall of the switching valve chamber 211 via the second seal 43.

[0107] Preferably, the first sealing element 42 and the second sealing element 43 are sealing rings, which are sleeved on the outer wall of the connecting nozzle 40, so that the first end of the connecting nozzle 40 is sealed to the inner wall of the distribution valve chamber 111 through the first sealing element 42, and the second end of the connecting nozzle 40 is sealed to the inner wall of the switch valve chamber 211 through the second sealing element 43.

[0108] The fluid control device provided in this embodiment connects the pressure regulating valve 30 to the pressure relief port 114 of the distribution valve 10 via the switching valve 20. The switching valve 20 controls the on / off state of the distribution valve 10 and the pressure regulating valve 30. When the switching valve 20 controls the distribution valve 10 and the pressure regulating valve 30 to be in a closed-conducting state, the distribution valve 10 accumulates pressure for air supply, which can achieve precise control of the intake air volume. When the switching valve 20 is in a conducting state, the pressure regulating valve 30 is connected to the distribution valve 10. The pressure regulating valve 30 can actively depressurize and exhaust the gas in the intake air path connected to the inlet of the distribution valve 10, instead of passively opening the spring by air pressure. This allows the air pressure in the intake air path to be controlled and regulated, achieving controllable active pressure regulation and distribution control of high and low pressure air sources, thus solving the problem that the pressure regulating valve in the prior art cannot actively regulate pressure.

[0109] In addition, the fluid control device provided in this embodiment reduces the length of the air intake path of the valve module by connecting the pressure regulating valve section 30 in series with the venting end of the distribution valve section 10 through the switching valve section 20, thereby reducing the volume of the valve module package housing and making it easier to reduce the assembly volume of the valve module.

[0110] In some embodiments, such as Figure 1 , Figure 3 and Figure 7 As shown, the pressure regulating valve section 30 includes a pressure regulating housing 31, a pressure regulating valve core 32, and a pressure regulating reset member 33.

[0111] The pressure regulating housing 31 has a pressure regulating valve chamber 311, a pressure regulating port 312 and a discharge port 313 connected to the pressure regulating valve chamber 311. The pressure regulating port 312 is connected to the second port 213. The discharge port 313 is used to connect to the external environment. The pressure regulating valve core 32 is disposed in the pressure regulating valve chamber 311. The pressure regulating reset member 33 is used to elastically close the pressure regulating port 312 with the pressure regulating valve core 32.

[0112] In this embodiment of the present invention, the pressure regulating reset member 33 may be selected from, but is not limited to, a spring, a spring sheet, etc. Given that the pressure regulating reset member 33 elastically acts to normally close the pressure regulating connection port 312 of the pressure regulating valve core 32, when the air pressure in the intake air passage is too high, the switch valve section 20 drives the switch valve core 22 to displace and open the second connection port 213, so that the fluid passes through the pressure regulating connection port 312 and pressurizes the pressure regulating valve core 32, forcing the pressure regulating valve core 32 to overcome the elastic force of the pressure regulating reset member 33 and displace and open the pressure regulating connection port 312, thereby allowing the fluid to enter the pressure regulating valve section 30 and be discharged from the outlet 313 to the external environment to relieve pressure, thus realizing active pressure regulation. Until the air pressure drops to the set value, the pressure regulating reset member 33 elastically acts to reset and close the pressure regulating connection port 312 of the pressure regulating valve core 32.

[0113] The “external environment” can be the atmospheric environment, or a flow channel or pipe for gas recycling.

[0114] In some other alternative embodiments, the pressure regulating valve section 30 includes a pressure regulating housing 31, a pressure regulating valve core 32, a pressure regulating reset member 33, and a pressure regulating actuator.

[0115] The pressure regulating housing 31 has a pressure regulating valve chamber 311, a pressure regulating port 312 and a discharge port 313 connected to the pressure regulating valve chamber 311. The pressure regulating port 312 is connected to the second port 213. The discharge port 313 is used to connect to the external environment. The pressure regulating valve core 32 is disposed in the pressure regulating chamber. The pressure regulating reset member 33 is used to elastically close the discharge port 313 under normal conditions. The pressure regulating actuator is used to actuate the pressure regulating valve core 32 to open the discharge port 313.

[0116] The “external environment” can be the atmospheric environment, or a flow channel or pipe for gas recycling.

[0117] In this embodiment of the present invention, the pressure regulating valve core 32 may be selected, but is not limited to, an iron core or a permanent magnet. In some embodiments, the pressure regulating valve core 32 is provided with a permanent magnet. The pressure regulating valve core 32 may be entirely made of a permanent magnet, that is, the entire body is a permanent magnet, or it may be partially made of a permanent magnet, that is, it includes a permanent magnet. When the pressure regulating valve core 32 is partially made of a permanent magnet, that is, the permanent magnet is provided as a partial component on the pressure regulating valve core 32.

[0118] The pressure regulating actuator includes a pressure regulating coil wound on the pressure regulating housing 31, which generates a magnetic field when energized. The pressure regulating valve core 32 is displaced under the excitation of the pressure regulating actuator to open the outlet 313.

[0119] In some optional embodiments, a pressure regulating groove is provided on the outer wall of the pressure regulating housing 31, the pressure regulating groove is arranged around the outer wall of the pressure regulating housing 31, and the pressure regulating actuator is wound in the pressure regulating groove.

[0120] In addition, the voltage regulating actuator has pins at both ends for connecting to a power supply.

[0121] In this embodiment, the pressure regulating reset member 33 may be selected from, but is not limited to, a spring, a sheet, etc. Since the pressure regulating reset member 33 elastically acts to normally close the outlet 313 of the pressure regulating valve core 32, the pressure regulating valve core 32 can be displaced and open the outlet 313 under the excitation of the pressure regulating actuator.

[0122] The working principle of the pressure regulating valve 30 in this embodiment can be understood as follows: when the air pressure in the intake air passage is too high and it is necessary to release air and regulate the pressure, the pressure regulating valve 30 sets the pressure regulating actuator to the fifth energized state. The pressure regulating actuator generates a magnetic field, which causes the pressure regulating valve core 32 to move and open the outlet 313 to release pressure through the excitation effect, so as to realize active pressure regulation. Until the air pressure drops to the set value, the pressure regulating valve 30 sets the pressure regulating actuator to the sixth energized state. The pressure regulating valve core 32 closes the outlet 313 under the elastic drive of the pressure regulating reset member 33, so as to cut off the connection between the distribution valve 10 and the pressure regulating valve 30, and realize active pressure regulation.

[0123] Among them, the voltage regulating actuator is in the fifth energized state, which can be the voltage regulating actuator being in the state of receiving a positive current or the voltage regulating actuator being in the state of receiving a reverse current; the voltage regulating actuator is in the sixth energized state, which can be the voltage regulating actuator being in the state of not being energized or the voltage regulating actuator being in the state of being de-energized.

[0124] The pressure regulating valve 30 of this utility model embodiment is normally closed, realizing active opening and pressure relief, and the pressure relief threshold can be set according to needs to achieve precise air pressure regulation.

[0125] This utility model embodiment also provides a valve module.

[0126] The valve module provided in this embodiment includes: a fluid pipeline 50, a plurality of fluid valves 60, and the fluid control device described in any of the above embodiments; see also... Figure 8 Several fluid valves 60 are connected to the fluid pipeline 50 respectively, and the delivery port 113 of the fluid control device is connected to the fluid pipeline 50.

[0127] In other embodiments, the valve module may also include a housing that encapsulates the fluid conduit 50, a plurality of fluid valves 60, and fluid control devices therein.

[0128] Specifically, the fluid pipe 50 is a centralized air intake channel on the valve module. It can be an integrally formed pipe with the valve module housing or a separately set pipe. The fluid pipe 50 is in fluid communication with the delivery port 113 of the distribution valve section 10, and the delivery port 113 of the distribution valve section 10 supplies air centrally through the fluid pipe 50. In view of the structure of the fluid control device described in the above embodiment, an output nozzle 17 is provided at the end of the distribution housing 11 of the distribution valve section 10 where the delivery port is located. The output nozzle 17 can be inserted into the fluid pipe 50. The fluid valve 60 can be selected from, but is not limited to, various fluid valves, and can realize directional distribution and delivery of fluid, such as a solenoid valve. Several fluid valves 60 are in fluid communication with the fluid pipe 50. In some embodiments, the air inlets of several fluid valves 60 can be inserted into the fluid pipe 50 respectively, or the air inlet seats of several fluid valves 60 can be connected in series with the fluid pipe 50.

[0129] The valve module provided in this embodiment adopts the fluid control device described in any of the above embodiments. When assembling the valve module, the fluid control device can be arranged side by side with multiple fluid valves 60, thereby avoiding the extension of the intake air path caused by the pressure regulating valve being connected in series at the end of the fluid pipeline 50, effectively reducing the volume of the valve module, thereby reducing the space occupation rate of the valve module during use, and ensuring the precise pressure regulation of the intake air path.

[0130] This utility model embodiment also provides a pneumatic comfort system, which may be at least one of a pneumatic massage system, a pneumatic lumbar support system, and a pneumatic side wing support system.

[0131] like Figure 8 As shown, the pneumatic comfort system includes: an air supply unit 70, a plurality of air consumption units 80, and a valve module as described in any of the above embodiments. The air supply unit 70 is fluidly connected to the inlet 112 of the fluid control device. The plurality of air consumption units 80 are respectively connected to a plurality of fluid valves 60, and each fluid valve 60 controls the inflation and deflation of each air consumption unit 80.

[0132] Specifically, the gas supply unit 70 is fluidly connected to the inlet 112 of the distribution valve section 10, and each gas consumption unit 60 is fluidly connected to the fluid valve 60 of the valve module, so as to realize the charging and discharging of each gas consumption unit 80 by the fluid valve 60 respectively.

[0133] In view of the structure of the fluid control device described in the above embodiments, an air inlet 16 is provided at the end of the distribution housing 11 of the distribution valve section 10 where the inlet 112 is located. The air supply unit 70 is fluidly connected to the air inlet 16 through an air pipe, and the air consumption unit 80 is fluidly connected to the fluid valve 60 through an air pipe.

[0134] In a preferred embodiment, the gas supply unit 70 includes an air pump, an air compressor, or a gas storage device, such as a gas cylinder or a gas tank. The gas consumption unit 80 includes a gas bag or a bladder.

[0135] The pneumatic comfort system provided in this embodiment of the utility model uses the valve module described above to connect the air supply unit 70 and the air consumption unit 80, so that the air pressure of the air consumption unit 80 during the inflation process can be controlled and adjusted, thereby realizing controllable active pressure regulation, achieving precise control of gas flow, and thus achieving stable pressure regulation of the air consumption unit 80, so that the pneumatic comfort system has a better functional adjustment function.

[0136] The sequence numbers of the above-described embodiments are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of the present invention, provided only to clearly illustrate the present invention, and are not intended to limit the patent scope of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description; it is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the claims of the present invention.

Claims

1. A fluid control device, characterized by, It includes a distribution valve section (10), a switching valve section (20), and a pressure regulating valve section (30). The distribution valve section (10) is used to control the directional delivery of fluid. The switching valve section (20) is connected between the distribution valve section (10) and the pressure regulating valve section (30). The switching valve section (20) is used to control the on / off state of the distribution valve section (10) and the pressure regulating valve section (30). The switching valve section (20) includes a switching valve chamber (211), a first connecting port (212), a second connecting port (213), and a switching valve core (22). The first connecting port (212) and the second connecting port (213) are connected to the switching valve chamber (211), and the first connecting port (212) is connected to the distribution valve section (10), and the second connecting port (213) is connected to the pressure regulating valve section (30). The switching valve core (22) is disposed in the switching valve chamber (211). The switching valve core (22) closes the second connecting port (213) in a first position and opens the second connecting port (213) in a second position.

2. The fluid control device of claim 1, wherein, The switching valve section (20) also includes a switch housing (21) and a switch actuator (23); The switch valve chamber (211), the first communication port (212) and the second communication port (213) are opened in the switch housing (21), and the switch actuator (23) is used to actuate the switch valve core (22) to the first position or to the second position.

3. The fluid control device of claim 1, wherein, The switching valve section (20) further includes a switch reset member (24), which is used to elastically ensure that the switching valve core (22) is normally in the second position or normally in the first position.

4. The fluid control device according to claim 1, characterized in that, The distribution valve section (10) includes a distribution housing (11), a distribution valve core (12), and a distribution actuator (13); The distribution housing (11) is provided with a distribution valve chamber (111) and an inlet (112), a delivery port (113) and a pressure relief port (114) communicating with the distribution valve chamber (111). The inlet (112) is used to connect to a fluid source, the delivery port (113) is used to connect to a fluid actuation unit, and the pressure relief port (114) is connected to the first communication port (212). The distribution valve core (12) is disposed in the distribution valve chamber (111), and the distribution actuator (13) is used to actuate the distribution valve core (12) to open or close the inlet (112).

5. The fluid control device according to claim 4, characterized in that, The distribution valve section (10) further includes a distribution reset member (14), which is used to elastically close or open the inlet (112) of the distribution valve core (12) in normal operation.

6. The fluid control device according to claim 1, characterized in that, It also includes a connecting nozzle (40), which has a connecting air passage (41) connecting the distribution valve (10) and the switching valve (20), and the first connecting port (212) is opened at the second end of the connecting air passage (41).

7. The fluid control device according to any one of claims 1-6, characterized in that, The pressure regulating valve section (30) includes a pressure regulating housing (31), a pressure regulating valve core (32), and a pressure regulating reset component (33); The pressure regulating housing (31) has a pressure regulating valve chamber (311) and a pressure regulating port (312) and a discharge port (313) communicating with the pressure regulating valve chamber (311). The pressure regulating port (312) is connected to the second port (213). The discharge port (313) is used to connect with the external environment. The pressure regulating valve core (32) is disposed in the pressure regulating valve chamber (311). The pressure regulating reset member (33) is used to elastically close the pressure regulating port (312) by the pressure regulating valve core (32).

8. The fluid control device according to any one of claims 1-6, characterized in that, The pressure regulating valve section (30) includes a pressure regulating housing (31), a pressure regulating valve core (32), a pressure regulating reset component (33), and a pressure regulating actuator; The pressure regulating housing (31) has a pressure regulating valve chamber (311) and a pressure regulating port (312) and a discharge port (313) communicating with the pressure regulating valve chamber (311). The pressure regulating port (312) is connected to the second port (213). The discharge port (313) is used to connect with the external environment. The pressure regulating valve core (32) is disposed in the pressure regulating chamber. The pressure regulating reset member (33) is used to elastically close the discharge port (313) normally by the pressure regulating valve core (32). The pressure regulating actuator is used to actuate the pressure regulating valve core (32) to open the discharge port (313).

9. A valve module, characterized in that, include: Fluid conduit (50); Several fluid valves (60); And the fluid control device according to any one of claims 1-8; Several fluid valves (60) are respectively connected to the fluid pipeline (50), and the delivery port (113) of the fluid control device is connected to the fluid pipeline (50).

10. A pneumatic comfort system, characterized in that, include: Gas supply unit (70); Several gas-consuming units (80); And the valve module of claim 9, wherein the air supply unit (70) is fluidly connected to the inlet (112) of the fluid control device, and the plurality of air-using units (80) are respectively connected to the plurality of fluid valves (60), and each fluid valve (60) controls the charging and discharging of each air-using unit (80).

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