A filling and pumping integrated gas path control system
Patent Information
- Application Number
- CN202521844394.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-08-28
AI Technical Summary
例如，部分系统通过控制气泵正反转改变气体流向，但机械式转向结构易引发磨损、噪音及响应延迟问题；另一类方案采用双泵独立设计，此时需要充气泵与抽气泵并联，虽避免了转向机构缺陷，却显著增加了硬件成本与空间占用，且多泵协同控制的复杂性易导致故障率上升
[0017]通过优化阀装置与泵装置的协同控制逻辑，实现了充气与抽气功能的切换，无需改变泵装置的工作状态（如泵装置的正反转或启停），避免了传统方案中因机械转向或频繁启停导致的磨损、噪音及效率损失。同时，简化后的气路结构降低了控制复杂度与故障率，提升了系统集成度与响应速度，在可靠性、能耗及空间占用方面具有显著优势。
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Figure CN224849951U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of gas circuit control, and in particular to a gas circuit control system that integrates charging and pumping. Background Technology
[0002] In the field of airbag inflation and deflation control, traditional technical solutions typically rely on switching the working state of the air pump to achieve the conversion between inflation and deflation functions. For example, some systems change the gas flow direction by controlling the forward and reverse rotation of the air pump, but the mechanical steering structure is prone to wear, noise, and response delay issues. Another type of solution adopts a dual-pump independent design, which requires the inflation pump and deflation pump to be connected in parallel. Although this avoids the defects of the steering mechanism, it significantly increases hardware costs and space occupation, and the complexity of multi-pump coordinated control can easily lead to an increased failure rate.
[0003] Therefore, it is necessary to propose a new technical solution to overcome the shortcomings of existing technologies. Utility Model Content
[0004] To address the aforementioned issues, this application provides an integrated filling and pumping air circuit control system that can switch between filling and pumping air bags without altering the operating state of the air pump.
[0005] This application provides an integrated inflation and deflation air circuit control system for controlling the inflation and deflation of air bags, including: A first valve device is connected to the air bag; A second valve device is connected to the air bag; A pump device, comprising an outlet and an inlet, wherein the outlet is connected to a first valve device and the inlet is connected to a second valve device; and The control device is configured as follows: When inflation is performed, the first valve connects the air outlet to the air bag, and the second valve connects the air inlet to the outside. When the air extraction operation is performed, the first valve device connects the air outlet to the outside, and the second valve device connects the air inlet to the air bag. When performing the inflation operation, the pump device drives external gas into the pump device through the second valve device, and then delivers it to the air bag through the first valve device. When performing the air extraction operation, the pump device drives the gas in the air bag to enter the pump device through the second valve device, and then discharges it through the first valve device.
[0006] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.
[0007] Optionally, the first valve device has a first connection port communicating with the air bag, a second connection port communicating with the air outlet, and a first air port communicating with the outside. The second valve device has a third connection port communicating with the air bag, a fourth connection port communicating with the air inlet, and a second air port communicating with the outside. When the air bag is inflated, the first connection port is connected to the second connection port, and the fourth connection port is connected to the second air port. When the air bag is evacuated, the second connection port is connected to the first air port, and the third connection port is connected to the fourth connection port.
[0008] Optionally, both the first valve device and the second valve device are solenoid valves.
[0009] Optionally, both the first connection port and the third connection port are connected to the air bag via a first pipeline; The second connection port is connected to the pump device through a second pipeline; The fourth connection port is connected to the pump device through the third pipeline.
[0010] Optionally, the first pipeline includes a first pipe section, a second pipe section, a third pipe section, and a transfer pipe. One end of the first pipe section is connected to the air bag, and the other end is connected to the transfer pipe. One end of the second pipe section is connected to the transfer pipe, and the other end is connected to the first connection port. One end of the third pipe section is connected to the transfer pipe, and the other end is connected to the third connection port.
[0011] Optionally, the pump device is an air pump.
[0012] Optionally, the control device is configured to output a first control signal and a second control signal; The control device includes: A first switching transistor, configured to receive the first control signal and control the first valve device via the first control signal; and The second switching transistor is configured to receive the second control signal and control the second valve device via the second control signal.
[0013] Optionally, when performing an inflation operation, the first control signal is high to turn on the first switch, and the second control signal is low to turn off the second switch. When the air extraction operation is performed, the first control signal is low to turn off the first switch, and the second control signal is high to turn on the second switch.
[0014] Optionally, the first switching transistor and the second switching transistor are MOSFETs, transistors, or silicon controlled rectifiers.
[0015] Optionally, the control device is configured to output a third signal; The control device further includes: A third switch is configured to receive a third control signal and control the pump unit via the third control signal.
[0016] This application discloses an integrated inflation and deflation control system. When inflating the air bag, the control device outputs a signal to connect the first valve to the air outlet and the second valve to the outside environment. An external gas is driven into the pump device via the second valve and then delivered to the air bag via the first valve. When deflation is performed, the control device connects the first valve to the outside environment and the second valve to the air bag. The pump device drives the gas inside the air bag into the pump device via the second valve and then discharges it via the first valve, completing the deflation process.
[0017] By optimizing the collaborative control logic of the valve and pump devices, the switching between inflation and deflation functions is achieved without altering the pump's operating state (such as forward / reverse rotation or start / stop). This avoids the wear, noise, and efficiency losses caused by mechanical steering or frequent start / stop in traditional solutions. Simultaneously, the simplified air path structure reduces control complexity and failure rate, improves system integration and response speed, and offers significant advantages in reliability, energy consumption, and space utilization. Attached Figure Description
[0018] Figure 1 A schematic diagram of the structure of an integrated inflation and deflation air circuit control system for performing an inflation operation on an air bag, provided in this application; Figure 2 This is a schematic diagram of a pneumatic control system for performing a suction operation on an air bag, according to an embodiment of this application.
[0019] The annotations in the figure are explained as follows: 100. Integrated filling and pumping air circuit control system; 101. Air bag; 10. First valve device; 11. First connection port; 12. Second connection port; 13. First air port; 20. Second valve device; 21. Third connection port; 22. Fourth connection port; 23. Second air port; 30. Pump device; 31. Air outlet; 32. Air inlet; 40. Control device; 41. First control signal; 42. Second control signal; 43. Third control signal; 44. First switch tube; 45. Second switch tube; 46. Third switch tube; 50. First pipeline; 51. First pipeline section; 52. Second pipeline section; 53. Third pipeline section; 54. Transfer pipe; 55. Second pipeline; 56. Third pipeline. Detailed Implementation
[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0021] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0023] like Figures 1 to 2As shown, this application provides an integrated inflation and deflation air circuit control system 100 for controlling the inflation and deflation of an air bag 101. It includes a first valve device 10, a second valve device 20, a pump device 30, and a control device 40. The first valve device 10 is connected to the air bag 101; the second valve device 20 is connected to the air bag 101; the pump device 30 includes an outlet 31 and an inlet 32, with the outlet 31 connected to the first valve device 10 and the inlet 32 connected to the second valve device 20; the control device 40 is configured such that, when an inflation operation is performed, the first valve device 10 connects the outlet 31 to the air bag 101. The air bag 101 is connected, and the second valve device 20 connects the air inlet 32 to the outside. When performing the air extraction operation, the first valve device 10 connects the air outlet 31 to the outside, and the second valve device 20 connects the air inlet 32 to the air bag 101. When performing the air filling operation, the pump device 30 drives the external gas to enter the pump device 30 through the second valve device 20, and then delivers it to the air bag 101 through the first valve device 10. When performing the air extraction operation, the pump device 30 drives the gas in the air bag 101 to enter the pump device 30 through the second valve device 20, and then discharges it through the first valve device 10.
[0024] When inflating the air bag 101, the control device 40 outputs a signal to connect the first valve device 10 to the air outlet 31 of the air bag 101 and the second valve device 20 to connect the air outlet 31 to the outside. The pump device 30 drives external gas through the second valve device 20 into the pump device 30, and then delivers it to the air bag 101 through the first valve device 10. When evacuating the air bag 101, the control device 40 connects the first valve device 10 to the outside and the second valve device 20 to the air outlet 31 of the air bag 101. The pump device 30 drives the gas inside the air bag 101 through the second valve device 20 into the pump device 30, and then discharges it through the first valve device 10, completing the evacuation.
[0025] By optimizing the coordinated control logic of the valve device and the pump device 30, the switching between inflation and deflation functions is achieved without changing the operating state of the pump device 30 (such as forward / reverse rotation or start / stop of the pump device 30), thus avoiding the wear, noise, and efficiency losses caused by mechanical steering or frequent start / stop in traditional solutions. At the same time, the simplified air circuit structure reduces control complexity and failure rate, improves system integration and response speed, and has significant advantages in terms of reliability, energy consumption, and space occupation.
[0026] In this embodiment, as Figures 1 to 2As shown, the air bag 101 is used for support or massage. When the air bag 101 is used for support, it is inflated to achieve a preset rigidity, providing stable support; when deflated, the pressure is released, restoring the flexibility of the air bag 101. When the air bag 101 is used for massage, it can adopt a periodic inflation and deflation pattern, stimulating the human body surface through repeated expansion and contraction.
[0027] In this embodiment, as Figures 1 to 2 As shown, both the first valve device 10 and the second valve device 20 are solenoid valves. The first valve device 10 has a first connection port 11 connected to the air bag 101, a second connection port 12 connected to the air outlet 31, and a first air port 13 connected to the outside. The second valve device 20 has a third connection port 21 connected to the air bag 101, a fourth connection port 22 connected to the air inlet 32, and a second air port 23 connected to the outside. When the air bag 101 is inflated, the first connection port 11 is connected to the second connection port 12, and the fourth connection port 22 is connected to the second air port 23. When the air bag 101 is deflated, the second connection port 12 is connected to the first air port 13, and the third connection port 21 is connected to the fourth connection port 22.
[0028] In this embodiment, as Figures 1 to 2 As shown, the first connection port 11 and the third connection port 21 are both connected to the air bag 101 through the first pipe 50; the second connection port 12 is connected to the pump device 30 through the second pipe 55; and the fourth connection port 22 is connected to the pump device 30 through the third pipe 56.
[0029] In this embodiment, as Figures 1 to 2 As shown, the first pipeline 50 includes a first pipe section 51, a second pipe section 52, a third pipe section 53, and a transfer pipe 54. One end of the first pipe section 51 is connected to the air bag 101, and the other end is connected to the transfer pipe 54. One end of the second pipe section 52 is connected to the transfer pipe 54, and the other end is connected to the first connection port 11. One end of the third pipe section 53 is connected to the transfer pipe 54, and the other end is connected to the third connection port 21.
[0030] In this embodiment, as Figures 1 to 2 As shown, the control device 40 is configured to output a first control signal 41 and a second control signal 42; the control device 40 includes a first switch 44 and a second switch 45. The first switch 44 is configured to receive the first control signal 41 and control the first valve device 10 through the first control signal 41; the second switch 45 is configured to receive the second control signal 42 and control the second valve device 20 through the second control signal 42.
[0031] In this embodiment, as Figures 1 to 2As shown, when performing an inflation operation, the first control signal 41 is at a high level to turn on the first switch tube 44, and the second control signal 42 is at a low level to turn off the second switch tube 45; when performing an air extraction operation, the first control signal 41 is at a low level to turn off the first switch tube 44, and the second control signal 42 is at a high level to turn on the second switch tube 45.
[0032] In this embodiment, as Figures 1 to 2 As shown, the voltage ranges for the high and low levels are adjusted according to the configuration of the first switch 44 and the second switch. For example, when the first switch 44 and the second switch 45 are MOSFETs, the low level is 0V and the high level is 1.8V~5V. When the first switch 44 and the second switch 45 are transistors, the low level is 0V and the high level is greater than 0.7V. When the first switch 44 and the second switch 45 are thyristors, the low level is 0V and the high level is greater than 1.5V.
[0033] In this embodiment, as Figures 1 to 2 As shown, the pump device 30 is an air pump. The control device 40 is configured to output a third signal; the control device 40 also includes a third switch 46, which is configured to receive a third control signal 43 and control the pump device 30 through the third control signal 43. When performing an inflation or deflation operation, the third control signal 43 is at a high level to turn on the third switch 46. The third switch 46 can be a MOSFET, a transistor, or a thyristor.
[0034] The inflation process of airbag 101 is described below: When the third control signal 43 is high, the third switch tube 46 is turned on, powering the pump device 30 and starting the pump device 30. The first control signal 41 outputs a high level, turns on the first switch tube 44, and the first valve device 10 switches to connect the first connection port 11 and the second connection port 12. The second control signal 42 outputs a low level, which cuts off the first switch tube 44, and the second valve device 20 switches to the second air port 23 and connects to the fourth connection port 22. External gas enters the second valve device 20 through the second air port 23, then enters the pump device 30 through the air inlet 32, and then enters the first valve device 10 through the air outlet 31, and finally is delivered to the air bag 101 to inflate the air bag 101, which can realize the functions of massage and support of the air bag 101.
[0035] The air extraction process of the air bag 101: When the third control signal 43 is high, the third switch tube 46 is turned on, powering the pump device 30 and starting the pump device 30. The first control signal 41 outputs a low level, which cuts off the first switch tube 44, and the first valve device 10 switches to connect the second connection port 12 and the first air port 13. The second control signal 42 outputs a high level, turns on the second switch tube 45, and the second valve device 20 switches to the third connection port 21 and connects to the fourth connection port 22. The gas inside the air bag 101 enters the air inlet 32 sequentially through the second valve device 20, passes through the pump device 30, and then enters the first valve device 10 through the air outlet 31. Finally, it is discharged to the external environment through the opened first air outlet 13, completing the evacuation process. The air bag 101 can be evacuated to a negative pressure value (e.g., -5 kPa, -10 kPa) to ensure that any gas inside the air bag 101 can be completely emptied, ensuring that the surface of the outer part of the air bag 101 (e.g., seat cover) is flat.
[0036] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.
[0037] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are quite specific and detailed. However, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.
Claims
1. An integrated inflation and deflation air circuit control system, used for inflation and deflation control of an air bag, characterized in that, include: A first valve device is connected to the air bag; A second valve device is connected to the air bag; A pump device, comprising an outlet and an inlet, wherein the outlet is connected to a first valve device and the inlet is connected to a second valve device; and A control device is configured to output a first control signal and a second control signal. The control device includes a first switch and a second switch. The first switch is configured to receive the first control signal and control the first valve device through the first control signal. The second switch is configured to receive the second control signal and control the second valve device through the second control signal. The control device is configured as follows: When the inflation operation is performed, the first control signal is high level to turn on the first switch tube, the second control signal is low level to turn off the second switch tube, the first valve device connects the air outlet to the air bag, and the second valve device connects the air inlet to the outside. as well as When the air extraction operation is performed, the first control signal is low level to cut off the first switch tube, the second control signal is high level to turn on the second switch tube, the first valve device connects the air outlet to the outside, and the second valve device connects the air inlet to the air bag. When performing the inflation operation, the pump device drives external gas into the pump device through the second valve device, and then delivers it to the air bag through the first valve device. When performing the evacuation operation, the pump device drives the gas in the air bag to enter the pump device through the second valve device, and then discharges it through the first valve device.
2. The integrated charging and pumping gas circuit control system according to claim 1, characterized in that, The first valve device has a first connection port communicating with the air bag, a second connection port communicating with the air outlet, and a first air port communicating with the outside. The second valve device has a third connection port communicating with the air bag, a fourth connection port communicating with the air inlet, and a second air port communicating with the outside. When the air bag is inflated, the first connection port is connected to the second connection port, and the fourth connection port is connected to the second air port. When the air bag is evacuated, the second connection port is connected to the first air port, and the third connection port is connected to the fourth connection port.
3. A pneumatic control system for charging and pumping as described in claim 1 or 2, characterized in that, Both the first valve device and the second valve device are solenoid valves.
4. The integrated charging and pumping gas circuit control system according to claim 2, characterized in that, Both the first connection port and the third connection port are connected to the air bag through a first pipeline; The second connection port is connected to the pump device through a second pipeline; The fourth connection port is connected to the pump device through the third pipeline.
5. The integrated filling and pumping gas circuit control system according to claim 4, characterized in that, The first pipeline includes a first pipe section, a second pipe section, a third pipe section, and a transfer pipe. One end of the first pipe section is connected to the air bag, and the other end is connected to the transfer pipe. One end of the second pipe section is connected to the transfer pipe, and the other end is connected to the first connection port. One end of the third pipe section is connected to the transfer pipe, and the other end is connected to the third connection port.
6. The integrated charging and pumping gas circuit control system according to claim 1, characterized in that, The pump device is an air pump.
7. The integrated charging and pumping gas circuit control system according to claim 1, characterized in that, The first switch and the second switch are MOSFETs, transistors, or silicon controlled rectifiers.
8. The integrated filling and pumping gas circuit control system according to claim 1, characterized in that, The control device is configured to output a third signal; The control device further includes: A third switch is configured to receive a third control signal and control the pump unit via the third control signal.