Vibration generating device and pneumatic comfort system
By changing the valve core position through the design of the fluid controller, the problems of limited gas flow and noise in traditional pneumatic massage systems are solved, realizing efficient air bag inflation and low-energy vibration massage mode.
Patent Information
- Application Number
- CN202422869517.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-11-25
AI Technical Summary
In traditional pneumatic massage systems, the gap between the valve core of the solenoid valve and the inner wall of the cavity restricts the gas flow, resulting in low inflation efficiency. The high-frequency switching control method increases energy consumption and noise, which are existing noise problems in the technology.
By employing fluid controller design techniques, the valve core's position is changed to control the medium. Through the fluid controller design of the valve core, the gas state is switched by controlling the position change of the valve core. The position change of the valve core enables the flow of large-flow air, reducing energy consumption and noise.
It achieves high-flow air circulation, improves the inflation efficiency of the air bag, reduces energy consumption and noise, and provides a good vibration massage mode.
Smart Images
Figure CN223682785U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pneumatic comfort system technical field, concretely relates to a vibration generating device and pneumatic comfort system. BACKGROUND
[0002] The traditional pneumatic massage system generally includes a gas source, a solenoid valve and a massage air bag, wherein the gas source is connected with the massage air bag through the solenoid valve for air supply, so as to inflate the massage air bag, and the solenoid valve is used to control the inflation and deflation of the massage air bag.
[0003] In the prior art, the gap formed between the valve core of the solenoid valve and the inner wall of the cavity on the side of the air inlet is usually used as the fluid passage for air intake. When air is taken in, the gas flows into the air inlet of the valve body, passes through the gap and then flows to the inflation port, and finally flows into the massage air bag to inflate it. Due to the limitation of the gap between the valve core and the inner wall of the cavity, the corresponding gas flow is small and the flow rate is slow, so the inflation efficiency of the massage air bag is also limited.
[0004] In addition, for massage modes that require frequent and high-speed inflation and deflation of the massage air bag, such as vibration massage mode, the existing control method usually controls the solenoid valve coil to be powered on and off at high frequency or to switch the current direction at high frequency, so as to control the valve core of the solenoid valve to switch between the open position and the closed position at high frequency, and control the massage air bag to realize high-frequency inflation and deflation. The control method of powering on and off the solenoid valve coil at high frequency can increase the energy consumption of the coil and easily generate high heat to reduce the service life. The control method of switching the current direction of the solenoid valve coil at high frequency can cause the valve core to switch in both directions and generate noise at multiple impact points, resulting in loud noise. SUMMARY
[0005] To solve the problems of the prior art, the utility model provides a vibration generating device, which uses fluid actuation to control the position change of the valve core to switch the air supply state. The medium opening of the air supply in the open state has a large conduction opening degree. Compared with the design of the gap between the valve core and the inner wall of the cavity in the prior art, not only can the large-flow gas flow be effectively realized to improve the inflation efficiency of the air bag, but also the actuation medium pressure only needs to reach the pressure that can move the valve core. The required actuation gas pressure is smaller than the working gas pressure, and a low-energy and low-pressure gas source (such as a silent pump) can be used for air supply. Compared with the switching control method of frequently powering the coil to drive the displacement movement of the valve core, the energy consumption is low and the noise is small.
[0006] The utility model also provides a pneumatic comfort system, which is composed of the above-mentioned vibration generating device, first air supply unit, second air supply unit and air bag. Not only can the energy consumption be effectively reduced and the inflation efficiency of the air bag be improved, but also a good experience of vibration massage mode can be effectively realized.
[0007] The technical effects achieved by the utility model are realized by the following technical solutions.
[0008] The utility model discloses a vibration generating device, comprising:
[0009] The shell is provided with a through cavity in the shell, and the shell is provided with a first medium opening, a second medium opening and an actuating medium interface in communication with the through cavity;
[0010] The valve core is movably arranged in the through cavity, and the valve core can be displaced and switched between a first position and a second position; when the valve core is in the first position, the valve core closes at least one of the first medium opening and the second medium opening; when the valve core is in the second position, the valve core opens the first medium opening and the second medium opening.
[0011] And a fluid controller is connected to the actuating medium interface, used for introducing actuating medium into the through cavity to actuate the valve core to move to the first position or the second position.
[0012] As one of the preferred solutions, the valve core is provided with a first sealing element, and when the valve core is in the first position, the first sealing element closes at least one of the first medium opening and the second medium opening.
[0013] As one of the preferred solutions, the valve core is provided with a medium flow channel, and when the valve core is in the second position, the first medium opening and the second medium opening are respectively in communication with both ends of the medium flow channel.
[0014] As one of the preferred solutions, the medium flow channel is a groove provided on the periphery of the valve core.
[0015] As one of the preferred solutions, the valve core is provided with a second sealing element, and the second sealing element movably seals the through cavity to define a working chamber and an actuating chamber, the first medium opening and the second medium opening are in communication with the working chamber, and the actuating medium interface is in communication with the actuating chamber.
[0016] As one of the preferred solutions, the utility model further comprises a first reset element, and the first reset element elastically promotes the valve core to move to the first position or the second position.
[0017] As one of the preferred solutions, the fluid controller comprises a control valve body, a valve plug and a check diaphragm; the control valve body is provided with a medium source flow channel, a positive pressure source flow channel and a pressure relief flow channel, the valve plug is arranged in the control valve body, the valve plug is provided with a through hole communicating the medium source flow channel and the positive pressure source flow channel, the pressure relief flow channel is communicated with the positive pressure source flow channel, the positive pressure source flow channel is communicated with the actuating medium interface, and the check diaphragm is arranged on the valve plug; the check diaphragm has a first state of covering and closing the through hole to make the positive pressure source flow channel and the pressure relief flow channel conductive, and a second state of opening the through hole under the pressure of the actuating medium introduced by the medium source flow channel and closing the pressure relief flow channel to make the medium source flow channel and the positive pressure source flow channel conductive.
[0018] As one of the preferred solutions, the vibration generating device further comprises a second reset element, and the second reset element elastically urges the check diaphragm to be in the first state.
[0019] The pneumatic comfort system comprises a first gas supply unit, a second gas supply unit, a gas bag and the vibration generating device; the first gas supply unit is fluidly communicated with the first medium opening of the vibration generating device, the gas bag is fluidly communicated with the second medium opening of the vibration generating device, and the second gas supply unit is fluidly communicated with the fluid controller of the vibration generating device.
[0020] As one of the preferred solutions, the gas source pressure of the second gas supply unit is lower than that of the first gas supply unit.
[0021] In summary, the utility model has at least the following advantages:
[0022] 1、The vibration generating device adopts the fluid controller to control the position transformation of the valve core by using the actuating medium, so as to control the gas source supply state switching and further control the inflation of the gas bag; the fluid controller controls the switching of the valve core between the first position and the second position, the actuating medium pressure only needs to reach the pressure capable of pushing the valve core to move, the required actuating gas source pressure is smaller than the working gas source pressure, a low-energy-consumption and low-pressure gas source (such as a mute pump) can be used for supply, and compared with the switching control mode of the coil frequent power-on driving valve core displacement movement, the energy consumption is low and the noise is small.
[0023] 2、The vibration generating device is communicated through the working chamber by the medium opening of the conductive working gas source, and a large-flow medium flow channel can be arranged on the valve core, so that the medium openings in the gas supply opening state have a large conductive opening degree; compared with the prior art limited by the gap between the valve core and the inner wall of the cavity, large-flow airflow circulation can be effectively realized, and the inflation efficiency of the gas bag is improved.
[0024] 3. The vibration generating device in the utility model, when the valve core moves to the second position, the first reset element can buffer it, avoid noise caused by the valve core directly impacting the inner wall of the conduction chamber, and the first reset element can promote the displacement movement of the valve core to the first position, improve the displacement movement switching efficiency of the valve core, and further improve the inflation and deflation conversion efficiency of the air bag, so that the air bag realizes high-frequency vibration massage.
[0025] 4. The pneumatic comfort system in the utility model is combined by the vibration generating device, the first air supply unit, the second air supply unit and the air bag, which can effectively reduce energy consumption, improve the inflation efficiency of the air bag, and effectively realize a vibration massage mode with good experience. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 is the structure section view schematic diagram of the vibration generating device in the utility model embodiment;
[0027] Figure 2 is the structure section view schematic diagram of the shell in the utility model embodiment;
[0028] Figure 3 is Figure 1 the local enlarged view of A in the utility model;
[0029] Figure 4 is Figure 1 the local enlarged view of B in the utility model;
[0030] Figure 5 is the structure schematic diagram of the pneumatic comfort system in the utility model embodiment.
[0031] REFERENCE SIGNS:
[0032] 10, the first air supply unit; 20, the second air supply unit; 30, the vibration generating device; 40, the air bag;
[0033] 100, the shell; 101, the conduction chamber; 102, the first medium opening; 103, the second medium opening; 104, the actuating medium interface; 105, the working chamber; 1051, the reset actuating chamber; 1052, the flow chamber; 106, the actuating chamber;
[0034] 200, the valve core; 201, the medium flow channel; 202, the sealing installation groove;
[0035] 300, the fluid controller; 310, the control valve body, 301, the medium source flow channel; 302, the positive pressure source flow channel; 303, the pressure relief flow channel; 311, the air inlet seat; 312, the air outlet seat; 420, the valve plug; 421, the through hole; 330, the check diaphragm; 340, the second reset element;
[0036] 400, first seal;
[0037] 500, second seal;
[0038] 600, third seal;
[0039] 700, first reset element. DETAILED DESCRIPTION
[0040] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application.
[0041] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0042] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0043] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0044] Please refer to the drawings Figure 1 The vibration generating device 30 in the embodiments of the present application includes a housing 100, a valve core 200 and a fluid controller 300.
[0045] Among them, please refer to Figure 2As shown, the housing 100 has a through cavity 101 therein, and a first medium opening 102, a second medium opening 103 and an actuating medium interface 104 are formed on the housing 100 and communicate with the through cavity 101. In some embodiments, the first medium opening 102 and the second medium opening 103 are respectively configured as an inlet and an outlet for the working medium to flow therethrough, for example, the first medium opening 102 is in fluid communication with a working gas source and configured as an inlet, and the second medium opening 103 is in fluid communication with a gas consuming unit and configured as an outlet, for example, the gas consuming unit includes a gas bag or other pneumatic regulating element; the actuating medium interface 104 is configured as an interface for introducing the actuating medium, and is in fluid communication with an actuating medium source, for example, a control gas source.
[0046] The valve core 200 is movably arranged in the through cavity 101, and the valve core 200 is capable of shifting between a first position and a second position. The first position and the second position are relative positions of the valve core 200 in the through cavity 101, for example, the valve core 200 can reciprocally move in the through cavity 101 along an axial direction, and the first position and the second position are limit positions respectively reached by the valve core 200 in opposite directions along the axial direction. Moreover, when the valve core 200 is in the first position, the valve core 200 closes at least one of the first medium opening 102 and the second medium opening 103; when the valve core 200 is in the second position, the valve core 200 opens the first medium opening 102 and the second medium opening 103.
[0047] In some embodiments, the valve core 200 moves in the through cavity 101 along a horizontal axial direction, and the first medium opening 102 and the second medium opening 103 are formed on the housing 100 in a vertical direction and are respectively located on the upper side and the lower side, and the first medium opening 102 and the second medium opening 103 are communicated through the through cavity 101. When the valve core 200 moves horizontally along the axial direction to the first position, the valve core 200 can block the first medium opening 102 or the second medium opening 103 located on the side of the valve core 200, or simultaneously block the first medium opening 102 and the second medium opening 103, so as to cut off the communication between the first medium opening 102 and the second medium opening 103, and the medium such as gas cannot flow between the first medium opening 102 and the second medium opening 103, for example, the gas of the working gas source cannot be supplied to the gas consuming unit through the first medium opening 102 and the second medium opening 103. When the valve core 200 moves horizontally along the axial direction to the second position, the valve core 200 simultaneously opens the first medium opening 102 and the second medium opening 103, so as to communicate between the first medium opening 102 and the second medium opening 103, and the medium such as gas can flow between the first medium opening 102 and the second medium opening 103, for example, the gas of the working gas source can enter the through cavity 101 from the first medium opening 102, and flow out of the through cavity 101 from the second medium opening 103 to supply the gas to the gas consuming unit.
[0048] In some preferred embodiments, please refer to Figure 3 As shown, the valve core 200 is provided with a first sealing member 400, which is arranged on the valve core 200 and moves synchronously with the valve core 200. When the valve core 200 is in the first position, the first sealing member 400 closes at least one of the first medium opening 102 and the second medium opening 103, so that the first medium opening 102 and the second medium opening 103 are cut off and connected, the working gas source is disconnected from the gas using unit, the efficiency of the on-off control is improved, and the control efficiency of the gas supply to the gas using unit is effectively guaranteed. When the valve core 200 moves to the second position, the first sealing member 400 is misaligned with the first medium opening 102 and the second medium opening 103, so that the first medium opening 102 and the second medium opening 103 are opened and connected. The first sealing member 400 can be, but is not limited to, a sealing gasket, which is annularly arranged and has two ends corresponding to the first medium opening 102 and the second medium opening 103, respectively. Alternatively, the sealing gasket has two sections corresponding to the first medium opening 102 and the second medium opening 103, respectively. Alternatively, the first sealing member 400 can be a sealing ring.
[0049] Specifically, a sealing installation groove 202 corresponding to the first sealing member 400 can be formed on the valve core 200 to embed and fix the first sealing member 400 on the valve core 200 and ensure the sealing effect.
[0050] In some preferred embodiments, the valve core 200 is provided with a medium flow channel 201. Specifically, the medium flow channel 201 can be a through hole penetrating the valve core 200 in the radial direction, or a groove formed on the circumference of the valve core 200. Preferably, the medium flow channel 201 is a groove formed on the outer circumference of the valve core 200. The size of the medium flow channel 201 can be set according to requirements, such as a larger size based on the requirement of large air flow. When the valve core 200 is in the second position, the first medium opening 102 and the second medium opening 103 are respectively connected with two ends of the medium flow channel 201, so that the first medium opening 102 and the second medium opening 103 are connected through the medium flow channel 201, rather than only through the gap between the valve core 200 and the inner wall of the connecting chamber 101, thereby effectively increasing the channel for the working gas source to flow through and accelerating the gas supply efficiency to the gas using unit.
[0051] The fluid controller 300 is connected to the actuating medium interface 104 for introducing the actuating medium into the conducting chamber 101 to actuate the displacement movement of the valve core 200 to the first position or the second position. Specifically, in operation, the actuating medium interface 104 is connected to a source of the actuating medium, such as a control gas source, through the fluid controller 300; the actuating medium is introduced into the conducting chamber 101 through the actuating medium interface 104, and the pressure of the actuating medium, such as the pressure of the control gas source, acts to cause the displacement movement of the valve core 200 to the first position or the second position.
[0052] In some embodiments, the valve core 200 can be in the second position in a normal state, i.e., a state in which no actuating medium is introduced into the actuating medium interface 104. When the actuating medium flows into the conducting chamber 101 from the actuating medium interface 104 through the fluid controller 300 to actuate the displacement movement of the valve core 200 to the first position, the valve core 200 closes at least one of the first medium opening 102 and the second medium opening 103 to cut off the fluid communication between the first medium opening 102 and the second medium opening 103.
[0053] In some embodiments, the valve core 200 can be in the first position in a normal state, i.e., a state in which no actuating medium is introduced into the actuating medium interface 104. When the actuating medium flows into the conducting chamber 101 from the actuating medium interface 104 through the fluid controller 300 to actuate the displacement movement of the valve core 200 to the second position, the valve core 200 opens the first medium opening 102 and the second medium opening 103 to cause the fluid communication between the first medium opening 102 and the second medium opening 103.
[0054] In some preferred embodiments, referring again to Figure 3 As shown, the valve core 200 is provided with a second sealing member 500, which is arranged on the valve core 200 and moves synchronously with the valve core 200. The second sealing member 500 can be, but is not limited to, a sealing ring or a sealing ring, and is sleeved and fixed on the valve core 200, such as a sealing installation groove 202 can be formed on the valve core 200 to match the second sealing member 500, so as to embed and fix the second sealing member 500 on the valve core 200, and ensure the sealing effect. Moreover, the second sealing member 500 actively seals the conducting chamber 101 to define the working chamber 105 and the actuating chamber 106, specifically, the two sides of the conducting chamber 101 with the second sealing member 500 as the boundary are defined as the working chamber 105 and the actuating chamber 106, respectively, and the chamber volumes of the defined working chamber 105 and actuating chamber 106 change with the movement of the second sealing member 500, but the two chambers are sealed from each other by the sealing action of the second sealing member 500 and are not in fluid communication with each other. The first medium opening 102 and the second medium opening 103 are in communication with the working chamber 105, and the actuating medium interface 104 is in communication with the actuating chamber 106.
[0055] When the actuation work is performed, the actuation medium flowing in through the actuation medium interface 104 enters into the actuation chamber 106 and exerts pressure on the actuation spool 200 to displace it to a switching position, so as to change the conduction relationship between the first medium opening 102 and the second medium opening 103. For example, the actuation spool 200 is displaced to the second position and the first medium opening 102 and the second medium opening 103 are conducted. When the first medium opening 102 and the second medium opening 103 are conducted to perform the gas supply work, the gas from the gas source flows in through the first medium opening 102 and flows out from the second medium opening 103 through the working chamber 105 to the gas consuming unit, so as to supply the gas to the gas consuming unit. Based on the action of the second sealing member 500, the actuation medium and the working medium are prevented from being mixed, and the supply of the working medium is controlled by the actuation medium.
[0056] In some other preferred embodiments, please refer to Figure 3 As shown, the vibration generating device 30 further comprises a first reset element 700. Preferably, the first reset element 700 can be but is not limited to an extension spring or a spring sheet. The first reset element 700 exerts an elastic force on the actuation spool 200, and the first reset element 700 elastically promotes the actuation spool 200 to displace to the first position or the second position. Specifically, two ends of the first reset element 700 are respectively connected to the actuation spool 200 and the inner wall of the conduction chamber 101. For example, the first reset element 700 can be compressed and the two ends thereof abut against the actuation spool 200 and the inner wall of the conduction chamber 101, respectively.
[0057] Based on the action of the first reset element 700, when the actuation medium interface 104 is not introduced with the actuation medium, the actuation spool 200 is not subjected to the actuation of the actuation medium, and the actuation spool 200 is kept at the first position or the second position. For example, the actuation spool 200 is kept at the first position, at least one of the first medium opening 102 and the second medium opening 103 is blocked, and the vibration generating device 30 is in a normally closed state and is opened during actuation. Alternatively, the actuation spool 200 is kept at the second position, the first medium opening 102 and the second medium opening 103 are conducted to each other, and the vibration generating device 30 is in a normally open state and is closed during actuation.
[0058] In some other preferred embodiments, the vibration generating device 30 further comprises a buffer pad (not labeled in the figure) arranged on one end of the actuation spool 200 adjacent to the actuation medium interface 104. When the first reset element 700 promotes the actuation spool 200 to reset towards the side close to the actuation medium interface 104, the buffer pad buffers the impact of the actuation spool 200 on the inner wall of the conduction chamber 101, so as to effectively reduce the noise of the device during work.
[0059] In some preferred embodiments, the valve core 200 is provided with a third sealing member 600, which is arranged on the valve core 200 and synchronously moves with the valve core 200. The third sealing member 600 can be, but is not limited to, a sealing ring or a sealing ring, and is sleeved and fixed on the valve core 200. For example, a sealing installation groove corresponding to the third sealing member 600 can be formed on the valve core 200, so that the third sealing member 600 is embedded and fixed on the valve core 200, and the sealing effect is ensured. Moreover, the third sealing member 600 further seals the working chamber 105 to define a reset actuating chamber 1051 for the first reset element 700 to work, and a flow chamber 1052 for gas flow. Specifically, the two sides of the working chamber 105 delimited by the third sealing member 600 are defined as the reset actuating chamber 1051 and the flow chamber 1052, respectively, so that the gas of the working gas source flows only in the flow chamber 1052 during work, reducing the turbulent flow of the gas, and the first reset element 700 works in the reset actuating chamber 1051, reducing the interference with the flowing gas and reducing the influence of the gas on it.
[0060] Wherein the defined flow chamber 1052 is delimited by the second sealing member 500 and the third sealing member 600, and since the second sealing member 500 and the third sealing member 600 synchronously move with the valve core 200, the chamber volume will not change with the movement of the valve core 200, and the reset actuating chamber 1051 changes with the movement of the valve core 200, but the two are kept sealed and not fluidly connected by the sealing effect of the third sealing member 600, avoiding the turbulent flow of the working gas source gas during work.
[0061] In some embodiments, referring to Figure 4 As shown in the figure, the fluid controller 300 in the vibration generating device 30 of the utility model comprises a control valve body 310, a valve plug 420 and a check diaphragm 330.
[0062] The control valve body 310 is provided with a medium source flow channel 301, a positive pressure source flow channel 302 and a pressure relief flow channel 303. The valve plug 420 is arranged in the control valve body 310, and the valve plug 420 is provided with a through hole 421 for connecting the medium source flow channel 301 and the positive pressure source flow channel 302. The positive pressure source flow channel 302 is connected to the actuating medium interface 104. The medium source flow channel 301 is used to be in fluid communication with the actuating medium source during operation. One end of the pressure relief flow channel 303 is connected to the positive pressure source flow channel 302, and the other end is connected to the atmosphere during operation. The check diaphragm 330 is arranged on the valve plug 420. The check diaphragm 330 has a first state of covering and closing the through hole 421 to make the positive pressure source flow channel 302 and the pressure relief flow channel 303 conductive, and a second state of opening the through hole 421 and closing the pressure relief flow channel 303 under the pressure of the actuating medium introduced by the medium source flow channel 301 to make the medium source flow channel 301 and the positive pressure source flow channel 302 conductive.
[0063] Specifically, the cross section of the check diaphragm 330 is substantially T-shaped, and the check diaphragm 330 is limitedly installed on the valve plug 420 by the limiting column. Among them, the T-shaped part of the check diaphragm 330 covers the through hole 421; the check diaphragm 330 can be telescopic relative to the valve plug 420 in the direction from the medium source flow channel 301 to the positive pressure source flow channel 302, and / or the T-shaped part of the check diaphragm 330 can be bent and deformed; and the T-shaped part of the check diaphragm 330 is provided corresponding to the pressure relief flow channel 303. When the check diaphragm 330 is in the first state, that is, in the state that the medium source flow channel 301 does not introduce actuating medium, the T-shaped part of the check diaphragm 330 remains to cover and close the through hole 421, and in this first state, because the through hole 421 is closed, the medium source flow channel 301 is cut off from the positive pressure source flow channel 302, and the positive pressure source flow channel 302 is communicated with the pressure relief flow channel 303. When the check diaphragm 330 is in the second state, that is, the medium source flow channel 301 introduces actuating medium, the actuating medium passes through the through hole 421 and acts on the check diaphragm 330 to move it backward, and the T-shaped part of the check diaphragm 330 covers the pressure relief flow channel 303 to block it, the actuating medium enters the positive pressure source flow channel 302 through the through hole 421, and is introduced into the communication chamber 101 through the actuating medium interface 104 to actuate the spool 200 to move; under the pressure of the actuating medium, the T-shaped part of the check diaphragm 330 is bent, which can further strengthen the blocking effect on the pressure relief flow channel 303 and increase the opening of the through hole 421, thereby increasing the flow of the actuating medium. When the actuating medium source stops supplying actuating medium, the side of the check diaphragm 330 facing the through hole 421 will no longer be under pressure, and the actuating medium in the communication chamber 201 will flow out of the actuating medium interface 104 to the positive pressure source flow channel 302 under the reset action of the spool 200, and will act on the check diaphragm 330 to move it back to the direction of the medium source flow channel 301, and open the pressure relief flow channel 303, and the check diaphragm 330 reenters the first state, at this time, the actuating medium flowing out of the positive pressure source flow channel 302 will flow out of the pressure relief flow channel 303 which is in communication with the positive pressure source flow channel 302, and will be discharged to the atmosphere, thereby achieving pressure relief.
[0064] In some optional embodiments, the control valve body 310 includes an air inlet seat 311 and an air outlet seat 312 which are mutually buckled. Among them, the medium source flow channel 301 is opened on the air inlet seat 311, and the positive pressure source flow channel 302 and the pressure relief flow channel 303 are opened on the air outlet seat 312. Further, the air outlet seat 312 can be a separate component or integrally formed on the housing 100. The valve plug 420 is arranged between the air inlet seat 311 and the air outlet seat 312 and is fixed by mutual buckling of the air inlet seat 311 and the air outlet seat 312.
[0065] In some preferred embodiments, the fluid controller 300 further comprises a second reset element 340, which elastically urges the check diaphragm 330 to the first state. Preferably, the second reset element 340 is a telescopic spring, and is located between the check diaphragm 330 and the pressure relief flow channel 303, and abuts on the T-shaped part of the check diaphragm 330 and the inner wall of the pressure relief flow channel 303 at two ends thereof, so as to elastically urge the check diaphragm 330 to move towards the medium source flow channel 301 and keep in the first state.
[0066] The pneumatic comfort system in the embodiment of the utility model, including pneumatic massage system, pneumatic waist support system, pneumatic side wing support system and the like.
[0067] Please refer to Figure 5 As shown in the drawing, the pneumatic comfort system comprises a first gas supply unit 10, a second gas supply unit 20, a gas bag 40 and the above-mentioned vibration generating device 30. The first gas supply unit 10 is used as a working gas source and is in fluid communication with the first medium opening 102 of the vibration generating device 30. The gas bag 40 is used as a gas consuming unit and is in fluid communication with the second medium opening 103 of the vibration generating device 30. The second gas supply unit 20 is used as an actuating gas source and is in fluid communication with the fluid controller 300 of the vibration generating device 30. Specifically, the second gas supply unit 20 is in fluid communication with the medium source flow channel 301 of the fluid controller 300.
[0068] When working, for example, with the vibration generating device 30 in which the first medium opening 102 and the second medium opening 103 are in a normally closed state. The first gas supply unit 10 is turned on, and the gas of the working gas source is supplied to the first medium opening 102. At this time, the second gas supply unit 20 is turned on, and the gas of the actuating gas source enters the actuating chamber 106 of the conduction chamber 101 in sequence through the medium source flow channel 301, the through hole 421 and the positive pressure source flow channel 302 of the fluid controller 300, and the valve core 200 moves to the second position to open the first medium opening 102 and the second medium opening 103. The gas of the working gas source flows from the first medium opening 102 to the second medium opening 103 through the medium flow channel 201, and then flows into the gas bag 40, so that the gas bag 40 is inflated. When the gas bag 40 is deflated, the second gas supply unit 20 is turned off, and the valve core 200 is reset to the first position under the action of the first reset element 700 to cut off the conduction of the first medium opening 102 and the second medium opening 103. The actuating gas in the actuating chamber 106 flows out to the atmosphere in sequence through the actuating medium interface 104, the positive pressure source flow channel 302 and the pressure relief flow channel 303, so as to realize actuating pressure relief. In this way, the actuating control realizes the frequent inflation and deflation of the gas bag 40, and realizes the fast inflation and deflation vibration effect.
[0069] In some embodiments, the first air supply unit 10 can be selected from, but not limited to, an air pump, an air compressor or a pump-valve integrated device; the air bag 40 can be a single-layer air bag or a multi-layer air bag; and the second air supply unit 20 can be selected from, but not limited to, an air pump, an air compressor or a pump-valve integrated device.
[0070] In some optional embodiments, the air source pressure of the second air supply unit 20 is lower than that of the first air supply unit 10. The second air supply unit 20 can adopt a silent pump, which has a lower air volume, but has a small energy consumption and volume, and has a good silent effect, and the air flow supplied can drive the displacement movement of the valve core 200; the first air supply unit 10 can adopt a micro diaphragm pump or an air compressor, which has a large air volume and meets the requirement of rapid inflation of the air bag 40. The air source of the first air supply unit 10 is used for the inflation of the air bag 40, and a relatively large air source pressure is required; and the air source of the second air supply unit 20 is used for driving the valve core 200, and a relatively small air source pressure is required, so as to reduce the energy consumption as much as possible.
[0071] As can be seen from the technical solutions of the above embodiments, the vibration generating device can effectively realize large-flow air flow circulation, improve the inflation efficiency of the air bag, and effectively reduce the energy consumption and noise of the device. The pneumatic comfort system composed of the vibration generating device can also effectively reduce the energy consumption, improve the inflation efficiency of the air bag and reduce the working noise.
[0072] In the description of the present application, it should be understood that the terms indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, structure and operation, and therefore cannot be understood as a limitation on the present application.
[0073] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0074] In the utility model, unless another definite provision and limitation, first feature is above or below second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through additional feature between them.
[0075] Although the description of the utility model is combined with above specific embodiment, it is obvious that many substitutions, modifications and changes can be made according to the above-mentioned content by the person skilled in the art. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.
Claims
1. A vibration generating device, characterized by comprising: The application relates to a vibration generating device, comprising: a housing, which has a conducting cavity in the housing, and which is provided with a first medium opening, a second medium opening and an actuating medium interface, which are in communication with the conducting cavity; a valve core, which is movably arranged in the conducting cavity and can be switched between a first position and a second position; when the valve core is in the first position, the valve core closes at least one of the first medium opening and the second medium opening; when the valve core is in the second position, the valve core opens the first medium opening and the second medium opening; and a fluid controller, which is connected to the actuating medium interface and is used for introducing actuating medium into the conducting cavity to actuate the valve core to move to the first position or the second position.
2. The vibration generating apparatus according to claim 1, characterized by The valve core is provided with a first sealing element, which closes at least one of the first medium opening and the second medium opening when the valve core is in the first position.
3. The vibration generating apparatus according to claim 1, wherein The valve core is provided with a medium flow channel, and when the valve core is in the second position, the first medium opening and the second medium opening are respectively in communication with two ends of the medium flow channel.
4. The vibration generating apparatus according to claim 3, wherein The medium flow channel is a groove arranged on the periphery of the valve core.
5. The vibration generating apparatus according to claim 1, wherein The valve core is provided with a second sealing element, which movably seals the conducting cavity to define a working chamber and an actuating chamber, the first medium opening and the second medium opening are in communication with the working chamber, and the actuating medium interface is in communication with the actuating chamber.
6. The vibration generating apparatus according to claim 1, wherein The application further comprises a first reset element, which elastically promotes the valve core to move to the first position or the second position.
7. The vibration generating apparatus according to claim 1, wherein The fluid controller comprises a control valve body, a valve plug and a check diaphragm; the control valve body is provided with a medium source flow channel, a positive pressure source flow channel and a pressure relief flow channel, the valve plug is arranged in the control valve body, the valve plug is provided with a through hole in communication with the medium source flow channel and the positive pressure source flow channel, the pressure relief flow channel is in communication with the positive pressure source flow channel, the positive pressure source flow channel is in communication with the actuating medium interface, and the check diaphragm is arranged on the valve plug; the check diaphragm has a first state of covering and closing the through hole to make the positive pressure source flow channel in communication with the pressure relief flow channel, and a second state of being opened by the pressure of the actuating medium introduced by the medium source flow channel to close the pressure relief flow channel and make the medium source flow channel in communication with the positive pressure source flow channel.
8. The vibration generating apparatus according to claim 7, wherein The application further comprises a second reset element, which elastically promotes the check diaphragm to be in the first state.
9. A pneumatic comfort system characterized in that, The application further comprises a first gas supply unit, a second gas supply unit, a gas bag and the vibration generating device according to any one of claims 1-8. The first gas supply unit is in fluid communication with the first medium opening of the vibration generating device, the gas bag is in fluid communication with the second medium opening of the vibration generating device, and the second gas supply unit is in fluid communication with the fluid controller of the vibration generating device.
10. The pneumatic comfort system of claim 9, wherein, The gas source pressure of the second gas supply unit is lower than that of the first gas supply unit.