Pneumatic control system for automobile seat

Abstract

The utility model discloses an automobile seat pneumatic control system which comprises a pneumatic controller, a first air passing channel and a second air passing channel are formed in the pneumatic controller, a first valve set and a second valve set are arranged on the pneumatic controller, and when the first valve set is in a first inflation state, the first valve set is communicated with the first air passing channel, and when the second valve set is in a second inflation state, the second valve set is communicated with the second air passing channel. When the first valve group is in a first gas release state, the first valve group is communicated with the second gas passing channel through the gas collecting assembly; when the second valve group is in a second inflation state, the second valve group is communicated with the first air passing channel, and when the second valve group is in a second deflation state, the second valve group is communicated with the external atmosphere; the air pump assembly communicates with the second air passing channel and is used for exhausting air from the first valve set when the first valve set is in the first air leakage state. The second valve group can be naturally deflated at the same time or separately, different use conditions can be adapted, the multifunctional requirement of the automobile seat is met, meanwhile, the air pump assembly can rapidly deflate the first valve group, and rapid adjustment is achieved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of automobile accessories, in particular to an automobile seat pneumatic control system. BACKGROUND

[0002] At present, with the development of science and technology and the progress of society, some automobile seats are provided with air bag inflation massage to facilitate the massage of the people in the car. The air bag massage technology is to bury the air bag in the chair cushion product, inflate and deflate the air bag to cause the effect of air bag expansion and contraction, and the expansion and contraction of the air bag in the seat appropriately produces local pushing pressure on the leaner, uses the gas pressure to press the human body, and realizes the gas massage function.

[0003] The air bag is inflated by the air pump, and when deflated, it can be deflated by natural deflation or air pump suction. The existing air suction system has a single function, and the air bag can only be deflated by natural deflation or air pump suction, and cannot be performed simultaneously, which cannot meet the multifunctional demand of automobile seats. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide an automobile seat pneumatic control system.

[0005] In a first aspect, the present application provides an automobile seat pneumatic control system, comprising:

[0006] a pneumatic controller, the pneumatic controller having a first air passage and a second air passage;

[0007] an air pump assembly, the air pump assembly having at least one air outlet and at least one air inlet, the air outlet and the first air passage being in communication, and the air inlet and the second air passage being in communication;

[0008] a first valve group, the first valve group being provided on the pneumatic controller and being connected with a first air use assembly, the first valve group having a first inflation state and a first deflation state, when the first valve group is in the first inflation state, the first valve group and the first air passage are in communication, and the air pump assembly inflates the first air use assembly through the first air passage and the first valve group in sequence, when the first valve group is in the first deflation state, the first valve group and the second air passage are in communication, and the air pump assembly extracts the gas in the first air use assembly through the first valve group and the second air passage in sequence.

[0009] The technical scheme provided by the embodiment of the present application further comprises a second valve group, which is arranged on the pneumatic controller and is connected with a second gas using assembly, the second valve group has a second inflation state and a second deflation state, when the second valve group is in the second inflation state, the second valve group and the first air passage are in communication, and the gas pump assembly inflates the second gas using assembly through the first air passage and the second valve group in sequence, when the second valve group is in the second deflation state, the second valve group and the external atmosphere are in communication, and the internal gas of the second gas using assembly is discharged through the second valve group.

[0010] The technical scheme provided by the embodiment of the present application further comprises a second valve group, which is arranged on the pneumatic controller and is connected with a second gas using assembly, the second valve group has a second inflation state and a second deflation state, when the second valve group is in the second inflation state, the second valve group and the first air passage are in communication, and the gas pump assembly inflates the second gas using assembly through the first air passage and the second valve group in sequence, when the second valve group is in the second deflation state, the second valve group and the external atmosphere are in communication, and the internal gas of the second gas using assembly is discharged through the second valve group.

[0011] The first valve group comprises a plurality of first control valves, and the first gas using assembly comprises a plurality of first gas bags, each of the first control valves has a first inflation state and a first deflation state, the first control valve has a first port, a second port and a third port, the first port is in communication with the first gas bag, the second port is in communication with the first air passage, and the third port is in communication with the first gas inlet of the gas collecting assembly, and the first gas outlet of the gas collecting assembly is connected with the gas inlet of the gas pump assembly through the second air passage.

[0012] When the first control valve is in the first inflation state, the first port and the second port are in communication, and when the first control valve is in the first deflation state, the first port and the third port are in communication.

[0013] The technical scheme provided by the embodiment of the present application further comprises a second valve group, which is arranged on the pneumatic controller and is connected with a second gas using assembly, the second valve group has a second inflation state and a second deflation state, when the second valve group is in the second inflation state, the second valve group and the first air passage are in communication, and the gas pump assembly inflates the second gas using assembly through the first air passage and the second valve group in sequence, when the second valve group is in the second deflation state, the second valve group and the external atmosphere are in communication, and the internal gas of the second gas using assembly is discharged through the second valve group.

[0014] When the second control valve is in the second inflation state, the fourth port and the fifth port are in communication, and when the second control valve is in the second deflation state, the fourth port and the sixth port are in communication.

[0015] The technical scheme provided by the embodiment of the present application further comprises a second valve group, which is arranged on the pneumatic controller and is connected with a second gas using assembly, the second valve group has a second inflation state and a second deflation state, when the second valve group is in the second inflation state, the second valve group and the first air passage are in communication, and the gas pump assembly inflates the second gas using assembly through the first air passage and the second valve group in sequence, when the second valve group is in the second deflation state, the second valve group and the external atmosphere are in communication, and the internal gas of the second gas using assembly is discharged through the second valve group.

[0016] According to the technical scheme provided by the embodiment of the application, the second air passage comprises a deflation nozzle and a deflation air channel, the deflation nozzle has a second air inlet end, a third air inlet end and a second air outlet end;

[0017] The second air inlet end and the third air inlet end are both in communication with the second air outlet end, the third air inlet end is in communication with the deflation air channel, and the second air outlet end is in communication with the air inlet of the air pump assembly;

[0018] The first air outlet end of the air collection assembly is directly in communication with the second air inlet end or is connected with the third air inlet end through the deflation air channel.

[0019] According to the technical scheme provided by the embodiment of the application, the pneumatic controller is provided with an air inlet switch valve, the air inlet switch valve is a first air inlet switch valve, the first air inlet switch valve has a seventh port, an eighth port and a ninth port, the air outlet of the air pump assembly is in communication with the seventh port, the seventh port is in communication with the eighth port, the eighth port is in communication with the first air passage, and the ninth port is in communication with the atmosphere.

[0020] The first air inlet switch valve has a first power-on state and a first power-off state, when in the first power-on state, the ninth port is in communication with the seventh port and the eighth port, and when in the first power-off state, the ninth port is disconnected from the seventh port and the eighth port.

[0021] According to the technical scheme provided by the embodiment of the application, the pneumatic controller is provided with an air inlet switch valve, the air inlet switch valve is a second air inlet switch valve, the second air inlet switch valve has a tenth port, an eleventh port and a twelfth port, the air outlet of the air pump assembly is in communication with the tenth port, the eleventh port is in communication with the first air passage, and the twelfth port is in communication with the atmosphere.

[0022] The second air inlet switch valve has a second power-on state and a second power-off state, when in the second power-on state, the twelfth port is in communication with the tenth port, and when in the second power-off state, the tenth port is in communication with the eleventh port.

[0023] According to the technical scheme provided in the embodiment of the application, the second air inlet switch valve comprises a second skeleton, the second skeleton has a second inner cavity inside, a second static iron, a second spring and a second dynamic iron are arranged in the second inner cavity, the second static iron is close to the tenth port, a through hole is arranged inside the second static iron, the second spring is arranged in the through hole and one end of the second spring abuts against the second dynamic iron, a plug core is fixedly arranged in the second inner cavity and located on the side of the second dynamic iron away from the second static iron, the plug core is used for limiting the second dynamic iron, the plug core is a hollow structure, and the twelfth port is arranged at the end of the plug core away from the second dynamic iron; and the second U-shaped iron is fixed with a second coil outside the second skeleton.

[0024] According to the technical scheme provided in the embodiment of the application, the pneumatic controller is further provided with an atmospheric switch valve, the atmospheric switch valve has a thirteenth port and a fourteenth port, the thirteenth port is in communication with the atmosphere, and the fourteenth port is in communication with the second air passage.

[0025] In summary, the technical scheme specifically discloses a pneumatic control system of an automobile seat, which comprises a pneumatic controller, the pneumatic controller has a first air passage and a second air passage inside, the pneumatic controller is provided with a first valve group, the first valve group has a first inflation state and a first deflation state, when the first valve group is in the first inflation state, the first valve group is in communication with the first air passage, when the first valve group is in the first deflation state, the first valve group is in communication with the second air passage through a gas collecting assembly, a gas pump mechanism is in communication with the second air passage and is used for pumping air to the first valve group when the first valve group is in the first deflation state, the pneumatic controller is further provided with a second valve group, the second valve group has a second inflation state and a second deflation state, when the second valve group is in the second inflation state, the second valve group is in communication with the first air passage, and when the second valve group is in the second deflation state, the second valve group is in communication with the atmosphere outside.

[0026] The second valve group can naturally deflate, and the first valve group deflates through the gas pump mechanism, which can be performed simultaneously or separately, can adapt to different use cases, meets the demand of multifunction of the automobile seat, and meanwhile, the gas pump mechanism can quickly deflate the first valve group, so that rapid adjustment is realized. BRIEF DESCRIPTION OF DRAWINGS

[0027] Other characteristics, objects and advantages of the application will become more apparent from the following detailed description of non-restrictive embodiments, made with reference to the accompanying drawings:

[0028] Figure 1 It is a schematic view when the first valve group is in the first deflation state.

[0029] Figure 2 It is a schematic view of the pneumatic controller.

[0030] Figure 3Schematic diagram of the first and second air passage.

[0031] Figure 4 Schematic diagram of the pneumatic controller working normally.

[0032] Figure 5 Schematic diagram of the first valve group in the first deflation state and the second valve group in the second inflation state.

[0033] Figure 6 Schematic diagram of the first air bag naturally deflating.

[0034] Figure 7 Schematic diagram of one of the air collecting assemblies.

[0035] Figure 8 Schematic diagram of another air collecting assembly.

[0036] Figure 9 Schematic diagram of the air release nozzle.

[0037] Figure 10 Schematic diagram of the air release nozzle.

[0038] Figure 11 Schematic diagram of the first air inlet on-off valve.

[0039] Figure 12 Schematic diagram of the first air inlet on-off valve in the power-on state.

[0040] Figure 13 Schematic diagram of the first air inlet on-off valve in the power-off state.

[0041] Figure 14 Schematic diagram of the pneumatic controller working normally.

[0042] Figure 15 Schematic diagram of the first valve group in the first deflation state and the second valve group in the second inflation state.

[0043] Figure 16 Schematic diagram of the first valve group in the first deflation state.

[0044] Figure 17 Schematic diagram of the first air bag naturally deflating.

[0045] Figure 18 Schematic diagram of the second air inlet on-off valve in the power-on state.

[0046] Figure 19 Schematic diagram of the second air inlet on-off valve in the power-on state.

[0047] Figure 20 Schematic diagram of the pneumatic control system of the automobile seat in Example 2.

[0048] The figure shows: 1, pneumatic controller; 2, first air passage; 3, air release channel; 4, first air component; 5, second air component; 6, second control valve; 7, second air bag; 8, first control valve; 9, first air bag; 10, air release nozzle; 11, second air inlet; 12, third air inlet; 13, second air outlet; 14, first air inlet switch valve; 15, seventh port; 16, eighth port; 17, ninth port; 18, tenth port; 19, eleventh port; 20, twelfth port; 21, sealing element; 22, atmospheric switch valve; 23, second air inlet switch valve; 26, air outlet; 27, air inlet; 28, air collection component; 29, first air inlet; 30, first air outlet; 31, hook; 31, filter device; 32, second air pump; 33, first air pump; 34, first skeleton; 35, first static iron; 36, first spring; 37, first moving iron; 38, first coil; 39, first U-shaped iron; 40, second skeleton; 41, second static iron; 42, second spring; 43, second moving iron; 44, blocking core; 45, second coil; 46, second U-shaped iron; 47, air inlet switch valve. DETAILED DESCRIPTION

[0049] The application will be further described below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are intended to be illustrative only and are not limiting of the application. In addition, it should be understood that the drawings are not necessarily to scale.

[0050] It should be understood that the examples and features of the examples in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and examples.

[0051] Example One

[0052] Please refer to Figures 1 to 3 The figure shows: 1, pneumatic controller; 2, first air passage; 3, air release channel; 4, first air component; 5, second air component; 6, second control valve; 7, second air bag; 8, first control valve; 9, first air bag; 10, air release nozzle; 11, second air inlet; 12, third air inlet; 13, second air outlet; 14, first air inlet switch valve; 15, seventh port; 16, eighth port; 17, ninth port; 18, tenth port; 19, eleventh port; 20, twelfth port; 21, sealing element; 22, atmospheric switch valve; 23, second air inlet switch valve; 26, air outlet; 27, air inlet; 28, air collection component; 29, first air inlet; 30, first air outlet; 31, hook; 31, filter device; 32, second air pump; 33, first air pump; 34, first skeleton; 35, first static iron; 36, first spring; 37, first moving iron; 38, first coil; 39, first U-shaped iron; 40, second skeleton; 41, second static iron; 42, second spring; 43, second moving iron; 44, blocking core; 45, second coil; 46, second U-shaped iron; 47, air inlet switch valve.

[0053] Pneumatic controller 1, pneumatic controller 1 has first air passage 2 and second air passage;

[0054] Air pump assembly, air pump assembly has at least one air outlet 26 and at least one air inlet 27, air outlet 26 and first air passage 2 are in communication, air inlet 27 and second air passage are in communication;

[0055] Therefore, through the action of the air pump assembly, the first air passage 2 can be inflated, and the second air passage can be deflated.

[0056] The first valve group is mounted on the pneumatic controller 1 and connected to the first air-using component 4. The first valve group has a first inflation state and a first deflation state. When the first valve group is in the first inflation state, the first valve group and the first air passage 2 are connected. The air pump assembly sequentially inflates the first air-using component 4 through the first air passage 2 and the first valve group. When the first valve group is in the first deflation state, the first valve group and the second air passage are connected. The air pump assembly sequentially extracts the gas inside the first air-using component 4 through the first valve group and the second air passage.

[0057] The second valve group is installed on the pneumatic controller 1 and connected to the second air-using component 5. The second valve group has a second inflation state and a second deflation state. When the second valve group is in the second inflation state, the second valve group is connected to the first air passage 2, and the air pump component sequentially inflates the second air-using component 5 through the first air passage 2 and the second valve group. When the second valve group is in the second deflation state, the second valve group is connected to the external atmosphere, and the gas inside the second air-using component 5 is released through the second valve group.

[0058] Therefore, through the action of the air pump assembly, air is supplied to the first air passage 2, thereby supplying air to the first air-using assembly 4 and the second air-using assembly 5. The air inside the first air-using assembly 4 can be extracted through the second air passage 2, thereby deflating the first air-using assembly 4. The air inside the second air-using assembly 5 is discharged to the outside atmosphere through the second valve group. The first air-using assembly 4 and the second air-using assembly 5 can be supplied and deflated simultaneously, or they can be supplied and deflated separately.

[0059] In this embodiment, the air pump assembly may include one or more air pumps, such as Figures 1-4 As shown, the air pump assembly includes only one first air pump 33, which supplies air to the first air-using assembly 4 and the second air-using assembly 5, such as... Figure 17 As shown, the air pump assembly also includes a second air pump 32, which is used to inflate other air bags besides the first air bag 9 and the second air bag 7. Of course, the number of air pump assemblies is not limited here, and more air pumps can be set according to the actual design.

[0060] The first valve group includes a plurality of first control valves 8, and the first gas supply component 4 includes a plurality of first air bags 9. Each first control valve 8 corresponds to each first air bag 9. Each first control valve 8 has a first inflation state and a first deflation state. The first control valve 8 has a first port, a second port and a third port, wherein the first port is connected to the first air bag 9 and the second port is connected to the first gas passage 2.

[0061] Furthermore, such as Figure 7 and Figure 8As shown, the first valve group is also connected with a gas collecting assembly 28, which has a first gas inlet end 29 and a first gas outlet end 30, the third port is connected with the first gas inlet end 29 of the gas collecting assembly 28, and the first gas outlet end 30 of the gas collecting assembly 28 is connected with the gas inlet 27 of the first air pump 33 through a second air passage;

[0062] When the first control valve 8 is in the first inflation state, the first port and the second port are connected, and the first air bag 9 can be inflated by the first air pump 33; when the first control valve 8 is in the first deflation state, the first port and the third port are connected, and the gas in the first air bag 9 can enter the gas collecting assembly 28 through the third port and be sucked away by the first air pump 33 through the second air passage;

[0063] Further, as shown in Figure 7 、 Figure 9 and Figure 10 , the second air passage includes a deflation nozzle 10 and a deflation air duct 3, the deflation nozzle 10 is arranged on the pneumatic controller 1, and has a second gas inlet end 11, a third gas inlet end 12 and a second gas outlet end 13;

[0064] The second gas inlet end 11 and the third gas inlet end 12 are both connected with the second gas outlet end 13, the third gas inlet end 12 is connected with the deflation air duct 3, and the second gas outlet end 13 is connected with the gas inlet 27 of the first air pump 33;

[0065] Further, the gas collecting assembly is multiple, here taking 2 as an example, both of the two gas collecting assemblies 28 have at least one first gas outlet end 30 and at least one first gas inlet end 29, the first gas outlet ends of one of the two gas collecting assemblies 28 are connected with the second gas inlet end 11 together, and the first gas outlet ends of the other of the two gas collecting assemblies 28 are connected with the deflation air duct 3 together; correspondingly, the third ports of a part of the first control valves 8 are connected with the first gas inlet ends 29 of one of the two gas collecting assemblies 28, and the third ports of the other part of the first control valves 8 are connected with the first gas inlet ends 29 of the other of the two gas collecting assemblies 28;

[0066] Therefore, when the first control valve 8 is in the first deflation state, a part of the gas in the first air bag 9 enters the deflation nozzle 10 through one of the two gas collecting assemblies 28, and the other part of the gas in the first air bag 9 enters the deflation nozzle 10 through the other of the two gas collecting assemblies 28 and the deflation air duct 3;

[0067] It should be noted that the first gas inlet end 29 and the first gas outlet end 30 of the gas collecting assembly 28 are both provided with a sealing piece 21, which can ensure the sealing property;

[0068] The second valve group includes multiple second control valves 6, and the second gas supply assembly 5 includes multiple second gas bags 7. Each second control valve 6 corresponds to each second gas bag 7. Each second control valve 6 has a second inflation state and a second deflation state. The second control valve 6 has a fourth port, a fifth port and a sixth port. The fourth port is connected to the second gas bag 7, the fifth port is connected to the first gas passage 2, and the sixth port is connected to the atmosphere.

[0069] When the second control valve 6 is in the second inflation state, the fourth port and the fifth port are connected; when the second control valve 6 is in the second deflation state, the fourth port and the sixth port are connected.

[0070] Therefore, when it is necessary to inflate the second air bag 7, the gas enters the first air passage 2 through the action of the first air pump 33 and then enters the second air bag 7 through the second control valve 6. When it is necessary to deflate the second air bag 7, the gas in the second air bag 7 is discharged to the outside atmosphere through the second control valve 6, thus achieving natural deflation.

[0071] In some embodiments, the first airbag 9 is preferably a support airbag, such as a leg support airbag, a support airbag, a shoulder adjustment airbag, or a passive side wing airbag. Such airbags cannot completely expel the gas inside by natural deflating, which can easily cause gas residue and lead to deformation or rupture of the airbag over time. By using the first air pump to drain the gas from the first airbag, the life of the airbag can be extended. The second airbag 9 is preferably a massage airbag such as a backrest massage airbag or a seat cushion massage airbag. Other airbags connected to the second air pump 32 are preferably active side wing airbags. Of course, the type of each airbag can be adjusted according to the actual design. For example, the first airbag 9 can also be set as a massage airbag, and the second airbag 7 can also be set as a support airbag. This is not limited here.

[0072] It should be noted that when there are two gas collection components 28, a hook 31 is provided on the gas collection component 28 connected to the second control valve 6 for hanging the gas collection component 28 on the gas collection component 28.

[0073] The pneumatic controller 1 is equipped with an intake switch valve 47. In this embodiment, the intake switch valve 47 is the first intake switch valve 14, such as... Figures 11 to 13 As shown, the first intake switch valve 14 has a seventh port 15, an eighth port 16 and a ninth port 17. The outlet 26 of the first air pump 33 is connected to the seventh port 15, the seventh port 15 is connected to the eighth port 16, the eighth port 16 is connected to the first air passage 2, and the ninth port 17 is connected to the atmosphere.

[0074] The first air inlet switch valve 14 has a first energized state and a first de-energized state. When in the first energized state, the ninth port 17 is in communication with the seventh port 15 and the eighth port 16. When in the first de-energized state, the ninth port 17 is disconnected from the seventh port 15 and the eighth port 16.

[0075] Specifically, the first air inlet switch valve 14 includes a first skeleton 34, which has a first inner cavity inside. A first static iron 35, a first spring 36 and a first dynamic iron 37 are arranged inside the first inner cavity. The first skeleton 34 is wrapped with a first coil 38, and the first coil 38 is fixed to the first skeleton 34 through a first U-shaped iron 39. The first dynamic iron 37 is arranged on one side close to the seventh port 15, and the first static iron 35 is arranged on the side away from the seventh port 15. The first static iron 35 is hollow inside and the ninth port 17 is arranged on the first static iron 35. The first spring 36 is arranged inside the first static iron 35 and one end of the first spring 36 abuts against the first dynamic iron 37. An O-ring is sleeved on the first static iron 35 to ensure the sealing effect. When the first air inlet switch valve 14 is in the first de-energized state, the first coil 38 is not energized, and the first dynamic iron 37 moves to the side of the seventh port 15 under the action of the first spring 36, thereby closing the passage between the seventh port 15 and the first inner cavity, and disconnecting the gas passage between the ninth port 17 and the seventh port 15 and the eighth port 16. When the first air inlet switch valve 14 is in the first energized state, the first coil 38 is energized to generate a magnetic field, and the first dynamic iron 37 obtains a magnetic force and is attracted to the first static iron 35, moving to the side of the ninth port 17. The passage between the seventh port 15 and the first inner cavity is opened, and the gas passage between the ninth port 17 and the seventh port 15 and the eighth port 16 is connected.

[0076] Therefore, when the first air inlet switch valve 14 is in the first energized state, the first gas pump 33 delivers the gas in the first gas bag 9 to the first air inlet switch valve 14 and discharges it to the outside atmosphere through the ninth port 17, and the gas in the second gas bag 7 can enter the first air inlet switch valve 14 from the first gas passage 2 and be discharged to the outside atmosphere through the ninth port 17.

[0077] When the first air inlet switch valve 14 is in the first de-energized state, the first gas pump 33 delivers the gas to the first air inlet switch valve 14 and into the first gas passage 2, thereby inflating the first gas bag 9 or the second gas bag 7.

[0078] In other certain embodiments, the air inlet switch valve 47 is a second air inlet switch valve 23, as shown in Figure 18 and 19 The second air inlet switch valve 23 has a tenth port 18, an eleventh port 19 and a twelfth port 20. The outlet 26 of the first gas pump 33 is in communication with the tenth port 18. The eleventh port 19 is in communication with the first gas passage 2, and the twelfth port 20 is in communication with the atmosphere.

[0079] The second intake switch valve 23 has a second energized state and a second de-energized state, when in the second energized state, the twelfth port 20 is in communication with the tenth port 18, when in the second de-energized state, the tenth port 18 is in communication with the eleventh port 19;

[0080] Specifically, the second intake switch valve 23 includes a second skeleton 40, the second skeleton 40 has a second inner cavity inside, a second static iron 41, a second spring 42 and a second dynamic iron 43 are arranged in the second inner cavity and are fixed by a plug core 44, the second static iron 41 can be integrally injection molded with the second skeleton 40, or can be an insert part that is in interference fit with the second skeleton 40, the second skeleton 40 is wrapped with a second coil 45 on the outside, and the second coil 45 is fixed with the second skeleton 40 by a second U-shaped iron 46, the second static iron 41 is arranged on the side close to the tenth port 18, the second dynamic iron 43 is arranged on the side close to the twelfth port 20, the second static iron 41 is internally provided with a through hole, the second spring 42 is arranged in the through hole of the second static iron 41 and abuts against the second dynamic iron 43 at one end, the plug core 44 is a hollow structure, and the twelfth port 20 is arranged on the plug core 44; when the second intake switch valve 23 is in the second de-energized state, the second coil 45 is not electrified, under the action of the second spring 42, the second dynamic iron 43 moves towards the twelfth port 20, closing the through hole of the plug core 44, at this time, the airflow flows from the tenth port 18, passes through the gap between the second dynamic iron 43 and the second static iron 41, and the inside of the second static iron 41, and flows to the eleventh port 19, so that the tenth port 18 and the eleventh port 19 are in communication; when the second intake switch valve 23 is in the second energized state, the second coil 45 is electrified to generate a magnetic field, the second dynamic iron 43 obtains magnetism, the second dynamic iron 43 and the second static iron 41 attract each other, so that the second dynamic iron 43 moves towards the second static iron 41, closing the air passage in the inside of the second static iron 41 from the tenth port 18, at this time, the airflow flows from the tenth port 18, passes through the gap between the second dynamic iron 43 and the second skeleton 40, and finally flows to the twelfth port 20 through the inside of the plug core 44, so that the tenth port 18 and the twelfth port 20 are in communication.

[0081] Therefore, when the second intake switch valve 23 is in the second energized state, under the action of the first air pump 33, the gas in the first air bag 9 can be transported to the second intake switch valve 23 and discharged from the twelfth port 20, realizing the deflation of the first air bag 9; when the second intake switch valve 23 is in the second de-energized state, under the action of the first air pump 33, the gas can be transported from the second intake switch valve 23 to the first air passage 2, realizing the inflation of the first air bag 9 or the second air bag 7.

[0082] The pneumatic controller 1 is further provided with an atmospheric switch valve 22 having a thirteenth port and a fourteenth port, the thirteenth port being in communication with the atmosphere, and the fourteenth port being in communication with the second gas passage, the thirteenth port being in direct communication with the atmosphere or being in communication with the atmosphere through a gas pipe;

[0083] Therefore, the atmospheric switch valve 22 can be used to control the air intake of the pneumatic system, when air charging is needed, the atmospheric switch valve 22 is opened, so that the gas can pass through the atmospheric switch valve 22, the second gas passage 3 and the air inlet of the first air pump 33 in sequence, under the action of the first air pump 33, the gas flows to the first air bag 9 and the second air bag 7, when air charging is not needed, for example, when the passenger turns off all the pneumatic functions such as massage and support, the atmospheric switch valve 22 can be closed, so that the pneumatic system no longer intakes air.

[0084] Further, the atmospheric switch valve 22 and the gas pipe of the external atmosphere are further provided with a filter device 31 for filtering when inhaling external gas, preventing impurities from entering the pneumatic controller 1.

[0085] Working principle: when the pneumatic controller 1 is working normally, the first control valve 8 is in the first air charging state, and the second control valve 6 is in the second air charging state, under the action of the air pump assembly, the external atmosphere can enter the air release nozzle 10 from the atmospheric switch valve 22, and then be sucked into the air pump assembly and delivered to the air inlet switch valve 47, and then the gas enters the first gas passage 2, and finally the first air bag 9 and the second air bag 7 are inflated;

[0086] When the first air bag 9 needs to be deflated and the second air bag 7 needs to be inflated, the first control valve 8 is in the first deflation state, and the second control valve 6 is in the second inflation state, under the action of the air pump assembly, the gas in the first air bag 9 enters the gas collection assembly 28, and then enters the air pump assembly through the second gas passage, and is delivered to the air inlet switch valve 47 by the air pump assembly, and then the gas enters the first gas passage 2, and finally the second air bag 7 is inflated;

[0087] When the first air bag 9 needs to be deflated, the first control valve 8 is in the first deflation state, under the action of the air pump assembly, the gas in the first air bag 9 enters the gas collection assembly 28, and then enters the air pump assembly through the second gas passage, and is delivered to the air inlet switch valve 47 by the air pump assembly, and then the gas is delivered to the external atmosphere through the air inlet switch valve 47, realizing the deflation of the first air bag 9;

[0088] When natural deflation of the first air bag 9 and the second air bag 7 is needed, the first control valve 8 is in the first deflation state, the second control valve 6 is in the second deflation state, the air pump assembly does not work, the gas in the first air bag 9 enters the second air passage and is discharged to the external atmosphere from the atmospheric switch valve 22, the natural deflation of the first air bag 9 is realized, and the gas in the second air bag 7 is discharged to the external atmosphere through the sixth port of the second control valve 6, the natural deflation of the second air bag 7 is realized.

Claims

1. An automotive seat pneumatic control system, characterized by, The utility model relates to a pneumatic controller (1) with a first air passage (2) and a second air passage, a gas pump assembly with at least one air outlet (26) and at least one air inlet (27), the air outlet (26) and the first air passage (2) are communicated, the air inlet (27) and the second air passage are communicated, a first valve group is arranged on the pneumatic controller (1) and is connected with a first gas using assembly (4), the first valve group has a first inflation state and a first deflation state, when the first valve group is in the first inflation state, the first valve group and the first air passage (2) are communicated, the gas pump assembly inflates the first gas using assembly (4) in turn through the first air passage (2) and the first valve group, when the first valve group is in the first deflation state, the first valve group and the second air passage are communicated, the gas pump assembly extracts the gas in the first gas using assembly (4) in turn through the first valve group and the second air passage. The utility model further comprises a second valve group arranged on the pneumatic controller (1) and connected with a second gas using assembly (5), the second valve group has a second inflation state and a second deflation state, when the second valve group is in the second inflation state, the second valve group and the first air passage (2) are communicated, the gas pump assembly inflates the second gas using assembly (5) in turn through the first air passage (2) and the second valve group, when the second valve group is in the second deflation state, the second valve group and the external atmosphere are communicated, the gas in the second gas using assembly (5) is extracted through the second valve group. The first valve group is further communicated with a gas collecting assembly (28) with a first air inlet end (29) and a first air outlet end (30); The first valve group comprises a plurality of first control valves (8), the first gas using assembly (4) comprises a plurality of first gas bags (9), each first control valve (8) has a first inflation state and a first deflation state, the first control valve (8) has a first port, a second port and a third port, the first port and the first gas bag (9) are communicated, the second port and the first air passage (2) are communicated, the third port is communicated with the first air inlet end (29) of the gas collecting assembly (28), the first air outlet end (30) of the gas collecting assembly (28) is connected with the air inlet (27) of the gas pump assembly through the second air passage; 2. The pneumatic control system for a vehicle seat according to claim 1, wherein When the first control valve (8) is in the first inflation state, the first port and the second port are communicated, when the first control valve (8) is in the first deflation state, the first port and the third port are communicated.

3. The automotive seat pneumatic control system of claim 2, wherein, ​ ​ ​ 4. The automotive seat pneumatic control system of claim 3, wherein, The second valve group comprises a plurality of second control valves (6), the second gas using assembly (5) comprises a plurality of second gas bags (7), each of the second control valves (6) has a second inflation state and a second deflation state, the second control valve (6) has a fourth port, a fifth port and a sixth port, the fourth port and the second gas bag (7) are communicated, the fifth port and the first air passage (2) are communicated, the sixth port and the atmosphere are communicated; When the second control valve (6) is in the second inflation state, the fourth port and the fifth port are communicated, when the second control valve (6) is in the second deflation state, the fourth port and the sixth port are communicated.

5. The automotive seat pneumatic control system of claim 4, wherein, The number of the gas collecting assemblies (28) is multiple, the gas collecting assembly (28) has at least one first air outlet (30) and at least one first air inlet (29), the first air outlet (30) of the gas collecting assembly (28) is connected with the air inlet (27) of the gas pump assembly through the second air passage, the third port of the first control valve (8) is communicated with the first air inlet (29) of the gas collecting assembly (28).

6. The pneumatic control system for a vehicle seat according to claim 5, wherein The second air passage comprises a deflation nozzle (10) and a deflation air channel (3), the deflation nozzle (10) has a second air inlet (11), a third air inlet (12) and a second air outlet (13); The second air inlet (11) and the third air inlet (12) are both communicated with the second air outlet (13), the third air inlet (12) is communicated with the deflation air channel (3), the second air outlet (13) is communicated with the air inlet (27) of the gas pump assembly; The first air outlet (30) of the gas collecting assembly (28) is directly communicated with the second air inlet (11), or connected with the third air inlet (12) through the deflation air channel (3).

7. The automotive seat pneumatic control system of claim 6, wherein, The pneumatic controller (1) is provided with an air inlet switch valve (47), the air inlet switch valve (47) is a first air inlet switch valve (14), the first air inlet switch valve (14) has a seventh port (15), an eighth port (16) and a ninth port (17), the air outlet (26) of the gas pump assembly is communicated with the seventh port (15), the seventh port (15) is communicated with the eighth port (16), the eighth port (16) is communicated with the first air passage (2), the ninth port (17) is communicated with the atmosphere; The first air inlet switch valve has a first power-on state and a first power-off state, when in the first power-on state, the ninth port (17) is communicated with the seventh port (15) and the eighth port (16), when in the first power-off state, the ninth port (17) is disconnected with the seventh port (15) and the eighth port (16).

8. The pneumatic control system for a vehicle seat according to claim 6, wherein The pneumatic controller (1) is provided with an air inlet switch valve (47), which is a second air inlet switch valve (23), the second air inlet switch valve (23) has a tenth port (18), an eleventh port (19) and a twelfth port (20), the air outlet (26) of the air pump assembly is in communication with the tenth port (18), the eleventh port (19) is in communication with the first air passage (2), and the twelfth port (20) is in communication with the atmosphere. The second air inlet switch valve (23) has a second energized state and a second de-energized state, when in the second energized state, the twelfth port (20) is in communication with the tenth port (18), and when in the second de-energized state, the tenth port (18) is in communication with the eleventh port (19).

9. The automotive seat pneumatic control system of claim 8, wherein, The second air inlet switch valve (23) comprises a second skeleton (40), the second skeleton (40) has a second inner cavity inside, the second inner cavity is provided with a second static iron (41), a second spring (42) and a second moving iron (43), the second static iron (41) is close to the tenth port (18), and a through hole is arranged in the second static iron (41), the second spring (42) is arranged in the through hole, one end of the second spring (42) abuts against the second moving iron (43), a plug core (44) is fixedly arranged in the second inner cavity and located on the side, away from the second static iron (41), of the second moving iron (43), for limiting the second moving iron (43), the plug core (44) is a hollow structure, one end, away from the second moving iron (43), of the plug core (44) is provided with the twelfth port (20), and the second skeleton (40) is fixed with a second coil (45) outside through a second U-shaped iron (46).

10. The pneumatic control system for an automotive seat according to claim 1, wherein The pneumatic controller (1) is further provided with an atmosphere switch valve (22), the atmosphere switch valve (22) has a thirteenth port and a fourteenth port, the thirteenth port is in communication with the atmosphere, and the fourteenth port is in communication with the second air passage.

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