Centralized gas source based multifunctional pneumatic system for automobile

Abstract

The application provides a multifunctional pneumatic system for a vehicle based on a centralized air source, which comprises a control module, a three-way valve, an internal air path and a vortex air pump; the three-way valve is connected with the internal air path and the vortex air pump; the internal air path is sequentially connected with a reversing valve, a massage air storage tank and a plurality of massage units installed on vehicle seats; the reversing valve is connected with an oxygen production air path; the oxygen production air path is sequentially connected with a condensation and water removal pipe, a temperature sensor, an exhaust valve and an oxygen production unit; and the control module is electrically connected with the vortex air pump, the three-way valve, the reversing valve, the massage units, the temperature sensor, the exhaust valve and the oxygen production unit. The application reduces the maintenance workload of the air pump and realizes the massage and oxygen production functions of the pneumatic system.

Description

Technical Field

[0001] This invention relates to the field of automotive pneumatics technology, and in particular to a multi-functional pneumatic system for automobiles based on a centralized air source. Background Technology

[0002] With the development of technology, in order to meet people's needs for multifunctional cars, many existing car seats are equipped with pneumatic massage systems to provide massage.

[0003] However, many existing cars have an independent pneumatic massage system for each seat, and each pneumatic massage system has a small air pump installed in the seat to supply air. The maintenance and upkeep of multiple small air pumps is quite labor-intensive. Many existing pneumatic massage systems can only perform massage, and their functions are relatively limited, failing to effectively combine massage and oxygen generation. Summary of the Invention

[0004] The present invention aims to provide a multi-functional pneumatic system for automobiles based on a centralized air source, so as to reduce the workload of air pump maintenance and upkeep, and realize the massage and oxygen generation functions of the pneumatic system.

[0005] Therefore, the technical solution adopted by the present invention is: a multi-functional pneumatic system for automobiles based on a centralized air source, including a control module, a three-way valve, an internal air circuit, and a vortex air pump;

[0006] The three-way valve connects to the internal air circuit and the vortex air pump. The internal air circuit is sequentially connected to a reversing valve, a massage air tank, and multiple massage units installed on the car seat. The reversing valve is connected to an oxygen generating circuit. The oxygen generating circuit is sequentially connected to a condensate drain pipe, a temperature sensor, an exhaust valve, and an oxygen generating unit.

[0007] The control module is electrically connected to a vortex air pump, a three-way valve, a reversing valve, a massage unit, a temperature sensor, an exhaust valve, and an oxygen generation unit.

[0008] As a preferred embodiment of the above solution, the massage unit includes an air box, multiple backrest massage airbags, and seat cushion massage airbags. The internal air circuit connects to the air box, and the air box connects to the multiple backrest massage airbags and seat cushion massage airbags. The control module controls the inflation and deflation of the backrest massage airbags and seat cushion massage airbags to massage the person on the seat.

[0009] More preferably, the oxygen generating unit includes a four-way valve, a first molecular sieve tower, a second molecular sieve tower, a nitrogen venting path, an oxygen storage tank, and a three-way connector. The four-way valve connects to an exhaust valve, the first molecular sieve tower, the second molecular sieve tower, and the nitrogen venting path, so that the first and second molecular sieve towers alternately supply oxygen and vent nitrogen. The oxygen storage tank connects to the first molecular sieve tower, the second molecular sieve tower, and the three-way connector. The three-way connector is connected to a first pressure sensor and a pressure regulating valve. The pressure regulating valve is connected to a bacterial filter. The bacterial filter is connected to an air conditioning outlet oxygen supply unit and multiple nasal oxygen supply units, so as to realize diffused oxygen supply through the air conditioning outlet and nasal oxygen supply. The control module is electrically connected to the four-way valve, the first molecular sieve tower, the second molecular sieve tower, and the first pressure sensor.

[0010] More preferably, the air conditioner outlet oxygen supply unit includes an outlet air path, a first oxygen concentration sensor, and a first electronic flow meter. The outlet air path is sequentially connected to a bacterial filter, the first oxygen concentration sensor, the first electronic flow meter, and the air conditioner outlet. The first oxygen concentration sensor and the first electronic flow meter are both electrically connected to a control module.

[0011] More preferably, the nasal oxygen supply unit includes a nasal oxygen supply path, a second oxygen concentration sensor, a second electronic flow meter, and a nasal oxygen outlet. The nasal oxygen supply path is sequentially connected to a bacterial filter, the second oxygen concentration sensor, the second electronic flow meter, and the nasal oxygen outlet. The second oxygen concentration sensor and the second electronic flow meter are both electrically connected to a control module.

[0012] More preferably, the nitrogen venting path is equipped with a nitrogen venting acoustic package, and the nitrogen venting path is connected in sequence to an exhaust valve and a nitrogen venting acoustic package, so that the air in the oxygen generating path can be directly discharged when the oxygen generating unit stops working.

[0013] More preferably, the air box is connected to two side wing support airbags, a seat cushion support airbag, and multiple lumbar support airbags. The control module controls the inflation, deflation, and pressure maintenance of the side wing support airbags, seat cushion support airbags, and lumbar support airbags to support the person in the seat. The two side wing support airbags are respectively fixedly installed on the two side wing supports of the seat, and the two seat cushion support airbags are fixedly installed on the seat cushion of the seat.

[0014] More preferably, a second pressure sensor is fixedly installed inside the air box, and the second pressure sensor is electrically connected to the control module.

[0015] A further preferred embodiment is that a mechanical pressure relief valve is provided between the massage air tank and the air box.

[0016] Preferably, the three-way valve is connected to an external air line, and the external air line is connected to a quick-connect fitting for supplying air to external air-using devices. The vortex air pump is located in the non-passenger space of the vehicle. The external air line and quick-connect fitting allow for inflating air mattresses and balls during outdoor camping, as well as tire inflation during routine vehicle maintenance. Furthermore, by connecting a pneumatic dust removal device, it can remove dust from the vehicle interior, greatly expanding the application range of the automotive pneumatic system, providing users with greater convenience, and enhancing the practicality and functionality of the vehicle.

[0017] The beneficial effects of this invention are:

[0018] 1. By using a single centralized air source (i.e., a vortex air pump), the use of multiple small air pumps is avoided, reducing investment in hardware equipment and thus lowering raw material procurement and manufacturing costs. At the same time, the centralized air source simplifies the system structure, reduces maintenance workload and costs, and improves the system's economy and reliability.

[0019] 2. By adopting a control module, internal air circuit, reversing valve, massage air tank, oxygen generation unit, and multiple massage units, it can realize oxygen generation and massage functions, which increases the practicality of the pneumatic system.

[0020] 3. The use of a massage air tank can buffer and store gas, making the air supply more stable and avoiding the problem of unstable massage intensity caused by fluctuations in the output of the vortex air pump. This achieves continuity and stability in the massage process and enhances the user's massage experience.

[0021] 4. The use of a condensate dehumidification pipe can dehumidify the air in the oxygen generation circuit, ensuring that the humidity of the oxygen produced by the oxygen generation unit reaches the set range, thus improving the comfort of passengers.

[0022] 5. A temperature sensor is used to monitor the air temperature in the oxygen production circuit. If the air temperature exceeds the set range, the control module will stop the oxygen production to protect the occupants and improve safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the gas path of the present invention.

[0024] Figure 2 yes Figure 1 A schematic diagram of the airflow path in the massage unit.

[0025] Figure 3 This is a diagram showing the position of the backrest massage airbag on the seat in this invention.

[0026] Figure 4 This is a diagram showing the position of the air box on the seat in this invention. Detailed Implementation

[0027] The present invention will now be further described with reference to the accompanying drawings and embodiments.

[0028] like Figure 1-4 As shown, a multi-functional pneumatic system for automobiles based on a centralized air source consists of a control module, a three-way valve 2, an internal air passage 6, and a vortex air pump 1.

[0029] The three-way valve 2 connects to the internal air passage 6 and the vortex air pump 1. The internal air passage 6 is connected in sequence to the reversing valve 5, the massage air tank 7, and multiple massage units 100 installed on the car seat. The reversing valve 5 is connected to the oxygen generating passage 9. The oxygen generating passage 9 is connected in sequence to the condensate drain pipe 10, the temperature sensor 11, the exhaust valve 12, and the oxygen generating unit 200.

[0030] The control module is electrically connected to the vortex air pump 1, three-way valve 2, reversing valve 5, massage unit 100, temperature sensor 11, exhaust valve 12, and oxygen generation unit 200.

[0031] The massage unit 100 consists of an air box 101, multiple backrest massage airbags 102, and seat cushion massage airbags 106. An internal air passage 6 connects to the air box 101, and the air box 101 connects to the multiple backrest massage airbags 102 and the seat cushion massage airbags 106. The control module controls the inflation and deflation of the backrest massage airbags 102 and the seat cushion massage airbags 106 to massage the person on the seat.

[0032] The air box 101 is connected to two side wing support airbags 103, a seat cushion support airbag 107, and multiple lumbar support airbags 104. The control module controls the inflation, deflation, and pressure maintenance of the side wing support airbags 103, seat cushion support airbags 107, and lumbar support airbags 104 to support the person in the seat. The two side wing support airbags 103 are fixedly installed on the two side wing supports of the seat, and the two seat cushion support airbags 107 are fixedly installed on the seat cushion.

[0033] A second pressure sensor 105 is fixedly installed inside the air box 101. The second pressure sensor 105 is electrically connected to the control module. A mechanical pressure relief valve 8 is provided between the massage air tank 7 and the air box 101.

[0034] The three-way valve 2 is connected to an external air passage 3, and a quick-connect fitting 4 is connected to the external air passage 3 to supply air to external air-using equipment. The vortex air pump 1 is located in the non-driving space of the car.

[0035] During massage, the control module activates the vortex air pump 1. Airflow from the vortex air pump 1 passes through the three-way valve 2 into the internal air passage 6, then sequentially passes through the reversing valve 5 and the massage air tank 7 into the air chamber 101. From the air chamber 101, airflow enters the backrest massage airbag 102, lumbar support airbag 104, seat cushion massage airbag 106, side wing support airbag 103, and seat cushion support airbag 107. The backrest massage airbag 102 and seat cushion massage airbag 106 can massage the occupants by inflating and deflating, while the lumbar support airbag 104, side wing support airbag 103, and seat cushion support airbag 107 provide support for the occupants. The seat cushion support airbag 107 can adjust its firmness by different inflation levels to ensure the occupants sit comfortably on the seat.

[0036] If the second pressure sensor 105 detects that the internal pressure of the air chamber 101 is too high, it sends a signal to the control module, which then controls the vortex air pump 1 to reduce the pressure. If the control module malfunctions, the mechanical pressure relief valve 8 can be manually opened to release the pressure. The air chamber 101 is connected to an outlet pipe 108, which is equipped with a control valve to allow the gas inside the air chamber 101 to be discharged by opening the control valve.

[0037] The backrest massage airbag 102 and seat cushion massage airbag 106 are both connected to the air tank 101 via a solenoid valve for inflation and deflation. The lumbar support airbag 104, seat cushion support airbag 107, and side wing support airbag 103 are each connected to the air tank 101 via two solenoid valves for inflation, deflation, and pressure maintenance. The connection between the airbags and the air tank 101 via solenoid valves for inflation, deflation, and pressure maintenance is existing technology and will not be elaborated upon here. All the aforementioned solenoid valves are electrically connected to the control module, allowing the control module to control the inflation, deflation, and pressure maintenance of the airbags. The vortex air pump 1 has a flow rate of 40L / min~120L / min and a pressure setting of 150KPa~180KPa. Compared to traditional small air pumps, it provides a sufficient and stable air source for the pneumatic system, effectively ensuring the massage intensity and meeting the gas flow and pressure requirements of various functions.

[0038] The number of massage units 100 can be four, with multiple backrest massage airbags 102 installed on the seat back 13. When the driver or passenger sits in the seat, the multiple backrest massage airbags 102 can be distributed on both sides of the spine for better massage. The side support airbags 103 can be customized according to the shape of the seat's side wings. The control module can achieve diverse massage modes by controlling the inflation and deflation sequence and time of each massage airbag. For example, in wave-style massage mode, the backrest massage airbags 102 at the top of the seat are inflated first, and then the remaining massage airbags are inflated sequentially downwards, forming a wave-like massage effect to better relax muscles.

[0039] The vortex air pump is installed in the non-passenger space of the car, effectively isolating the main noise generated by its operation from the outside, greatly improving the acoustic environment inside the vehicle. Compared to traditional small air pumps installed on the seats, the noise level inside the car is significantly reduced, creating a quieter and more comfortable riding space for passengers and enhancing the overall driving experience.

[0040] The reversing valve 5 can be a three-position five-way medium-pressure valve, thus achieving three different states: state one is that the massage unit 100 operates independently; state two is that the oxygen generating unit 200 operates independently; and state three is that the massage unit 100 and the oxygen generating unit 200 operate simultaneously. The three-way valve 2 can be a two-position three-way valve. The control module controls the three-way valve 2 to determine whether the vortex pump 1 supplies air to the internal air passage 6 or the external air passage 3. The control module controls the exhaust valve 12 to determine whether to supply air to the molecular sieve tower or directly discharge air into the nitrogen exhaust passage 217.

[0041] The oxygen generation unit 200 consists of a four-way valve 201, a first molecular sieve tower 202, a second molecular sieve tower 203, a nitrogen venting path 217, an oxygen storage tank 205, and a three-way connector 206. The four-way valve 201 connects to the exhaust valve 12, the first molecular sieve tower 202, the second molecular sieve tower 203, and the nitrogen venting path 217, so that the first molecular sieve tower 202 and the second molecular sieve tower 203 alternately supply oxygen and vent nitrogen. The oxygen storage tank 205 connects to the first molecular sieve tower 202, the second molecular sieve tower 203, and the three-way connector 206. The three-way connector 206 is connected to a first pressure sensor 207 and a pressure regulating valve 208. The pressure regulating valve 208 is connected to a bacterial filter 209, which is connected to an air conditioning outlet oxygen supply unit and multiple nasal oxygen supply units to enable diffused oxygen supply and nasal oxygen supply through the air conditioning outlet 212. The control module is electrically connected to a four-way valve 201, a first molecular sieve tower 202, a second molecular sieve tower 203, and a first pressure sensor 207.

[0042] The air conditioner outlet oxygen supply unit consists of an outlet air path, a first oxygen concentration sensor 210, and a first electronic flow meter 211. The outlet air path is sequentially connected to a bacterial filter 209, a first oxygen concentration sensor 210, a first electronic flow meter 211, and an air conditioner outlet 212. The first oxygen concentration sensor 210 and the first electronic flow meter 211 are both electrically connected to the control module.

[0043] The nasal oxygen supply unit consists of a nasal oxygen supply path, a second oxygen concentration sensor 215, a second electronic flow meter 214, and a nasal oxygen outlet 213. The nasal oxygen supply path is sequentially connected to a bacterial filter 209, a second oxygen concentration sensor 215, a second electronic flow meter 214, and a nasal oxygen outlet 213. The second oxygen concentration sensor 215 and the second electronic flow meter 214 are both electrically connected to a control module.

[0044] The nitrogen venting passage 217 is equipped with a nitrogen venting acoustic package 216. The nitrogen venting passage 217 is connected in sequence to the exhaust valve 12 and the nitrogen venting acoustic package 216 so that the air in the oxygen generating passage 9 can be directly discharged when the oxygen generating unit 200 stops working.

[0045] During oxygen production, the control module starts the vortex air pump 1 and controls the reversing valve 5 to introduce air from the internal air passage 6 into the oxygen production passage 9. The air in the oxygen production passage 9 passes sequentially through the condensate drain pipe 10, the temperature sensor 11, and the exhaust valve 12 before entering the four-way valve 201. From the four-way valve 201, it enters the first molecular sieve tower 202, which adsorbs impurities such as nitrogen, enriching the oxygen and outputting it to the oxygen storage tank 205. The oxygen then passes sequentially through the three-way connector 206, the pressure regulating valve 208, and the bacterial filter 209 before entering the air outlet passage and the nasal oxygen supply passage, respectively. In the air outlet passage, the oxygen passes sequentially through the first oxygen concentration sensor 210 and the first electronic flow meter 211 before being diffused into the vehicle through the air conditioning vent 212. The oxygen in the nasal oxygen supply circuit passes sequentially through the second oxygen concentration sensor 215, the second electronic flow meter 214, and the nasal oxygen outlet 213, and then enters the human body directly through the connecting hoses inserted into the human nostrils and the nasal oxygen outlet 213 at both ends.

[0046] When the first oxygen concentration sensor 210 and the second oxygen concentration sensor 215 detect that the oxygen concentration is higher or lower than the set range, the control module controls the molecular sieve tower to adjust the oxygen concentration to the set range. When the first electronic flow meter 211 and the second electronic flow meter 214 detect that the gas flow rate or pressure is higher or lower than the set range, the control module controls the first electronic flow meter 211 and the second electronic flow meter 214 to adjust the gas flow rate or pressure in the outlet gas path and the nasal oxygen supply path, respectively, to bring them to the set range. When the first pressure sensor 207 detects that the gas pressure is too high or too low, the control module controls the molecular sieve tower to adjust the gas pressure to the set range.

[0047] When excessive nitrogen accumulates in the first molecular sieve tower 202, the control module activates the four-way valve 201, connecting the second molecular sieve tower 203 to the exhaust valve 12, which then supplies oxygen to the oxygen storage tank 205. The first molecular sieve tower 202 is also connected to the nitrogen venting path 217, through which nitrogen is discharged. When excessive nitrogen accumulates in the second molecular sieve tower 203, the control module activates the four-way valve 201, reconnecting the first molecular sieve tower 202 to the exhaust valve 12 and supplying oxygen to the oxygen storage tank 205. The second molecular sieve tower 203 then connects to the nitrogen venting path 217 to discharge nitrogen. A pressure equalization valve 204 connects the first and second molecular sieve towers 202 to maintain equal pressure within both towers.

[0048] The oxygen generator unit 200 can effectively improve in-vehicle comfort and prevent fatigue that passengers may experience during long-distance driving, as well as the problem of hypoxia in high-altitude areas. The four-way valve 201, the first molecular sieve tower 202, the second molecular sieve tower 203, the oxygen storage tank 205, the three-way connector 206, the first pressure sensor 207, the pressure regulating valve 208, and the bacterial filter 209 can all be installed in the trunk of the car to minimize disturbance to passengers.

[0049] This invention has achieved significant benefits in noise control, cost optimization, massage function enhancement, oxygen generation, and external inflation function expansion, providing an innovative and practical solution for the development of automotive pneumatic systems.

[0050] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A multi-functional pneumatic system for automobiles based on a centralized air source, characterized in that: It includes a control module, a three-way valve (2), an internal air circuit (6), and a vortex air pump (1); The three-way valve (2) is connected to the internal air passage (6) and the vortex air pump (1). The internal air passage (6) is connected in sequence to a reversing valve (5), a massage air tank (7), and multiple massage units (100) installed on the car seat. The reversing valve (5) is connected to an oxygen generating passage (9). The oxygen generating passage (9) is connected in sequence to a condensate drain pipe (10), a temperature sensor (11), an exhaust valve (12), and an oxygen generating unit (200). The control module is electrically connected to a vortex air pump (1), a three-way valve (2), a reversing valve (5), a massage unit (100), a temperature sensor (11), an exhaust valve (12), and an oxygen generation unit (200).

2. The multi-functional pneumatic system for automobiles based on a centralized air source according to claim 1, characterized in that: The massage unit (100) includes an air box (101), multiple backrest massage airbags (102) and a seat cushion massage airbag (106). The internal air passage (6) is connected to the air box (101). The air box (101) is connected to the multiple backrest massage airbags (102) and the seat cushion massage airbags (106). The control module controls the inflation and deflation of the backrest massage airbags (102) and the seat cushion massage airbags (106) to massage the person on the seat.

3. The multi-functional pneumatic system for automobiles based on a centralized air source according to claim 1, characterized in that: The oxygen generation unit (200) includes a four-way valve (201), a first molecular sieve tower (202), a second molecular sieve tower (203), a nitrogen exhaust path (217), an oxygen storage tank (205), and a three-way connector (206). The four-way valve (201) is connected to an exhaust valve (12), the first molecular sieve tower (202), the second molecular sieve tower (203), and the nitrogen exhaust path (217), so that the first molecular sieve tower (202) and the second molecular sieve tower (203) can alternately supply oxygen and exhaust nitrogen. The oxygen storage tank (205) is connected to the first molecular sieve tower (202), the second molecular sieve tower (203), the first molecular sieve tower (202), the second molecular sieve tower (203), and the nitrogen exhaust path (217). The molecular sieve tower (203) and the three-way connector (206) are connected to a first pressure sensor (207) and a pressure regulating valve (208). The pressure regulating valve (208) is connected to a bacterial filter (209). The bacterial filter (209) is connected to an air conditioning outlet oxygen supply unit and multiple nasal oxygen supply units to realize diffused oxygen supply and nasal oxygen supply through the air conditioning outlet (212). The control module is electrically connected to a four-way valve (201), a first molecular sieve tower (202), a second molecular sieve tower (203) and a first pressure sensor (207).

4. A multi-functional pneumatic system for automobiles based on a centralized air source according to claim 3, characterized in that: The air conditioning outlet oxygen supply unit includes an outlet air path, a first oxygen concentration sensor (210), and a first electronic flow meter (211). The outlet air path is sequentially connected to a bacterial filter (209), the first oxygen concentration sensor (210), the first electronic flow meter (211), and the air conditioning outlet (212). The first oxygen concentration sensor (210) and the first electronic flow meter (211) are both electrically connected to the control module.

5. A multi-functional pneumatic system for automobiles based on a centralized air source according to claim 3, characterized in that: The nasal oxygen supply unit includes a nasal oxygen supply path, a second oxygen concentration sensor (215), a second electronic flow meter (214), and a nasal oxygen outlet (213). The nasal oxygen supply path is sequentially connected to a bacterial filter (209), the second oxygen concentration sensor (215), the second electronic flow meter (214), and the nasal oxygen outlet (213). The second oxygen concentration sensor (215) and the second electronic flow meter (214) are both electrically connected to a control module.

6. A multi-functional pneumatic system for automobiles based on a centralized air source according to claim 3, characterized in that: The nitrogen exhaust path (217) is equipped with a nitrogen exhaust acoustic package (216). The nitrogen exhaust path (217) is connected in sequence to the exhaust valve (12) and the nitrogen exhaust acoustic package (216) so that the air in the oxygen production path (9) can be directly discharged when the oxygen production unit (200) stops working.

7. A multi-functional pneumatic system for automobiles based on a centralized air source according to claim 2, characterized in that: The air box (101) is connected to two side wing support airbags (103), a seat cushion support airbag (107), and multiple lumbar support airbags (104). The control module controls the inflation, deflation, and pressure maintenance of the side wing support airbags (103), seat cushion support airbags (107), and lumbar support airbags (104) to support the person on the seat. The two side wing support airbags (103) are fixedly installed on the two side wing supports of the seat, and the two seat cushion support airbags (107) are fixedly installed on the seat cushion.

8. A multi-functional pneumatic system for automobiles based on a centralized air source according to claim 2, characterized in that: A second pressure sensor (105) is fixedly installed inside the air box (101), and the second pressure sensor (105) is electrically connected to the control module.

9. A multi-functional pneumatic system for automobiles based on a centralized air source according to claim 1, characterized in that: A mechanical pressure relief valve (8) is provided between the massage air tank (7) and the air box (101).

10. A multi-functional pneumatic system for automobiles based on a centralized air source according to claim 1, characterized in that: The three-way valve (2) is connected to an external air passage (3), and a quick-connect connector (4) is connected to the external air passage (3) to supply air to external air-using equipment. The vortex air pump (1) is located in the non-driving space of the car.

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