Waist support electromagnetic valve and seat pneumatic waist support massage system

Abstract

The utility model discloses a waist support electromagnetic valve and a seat pneumatic waist support massage system, which belong to the technical field of automobile seat massage devices and comprise an H electromagnetic valve and an O electromagnetic valve. The H electromagnetic valve comprises a first shell, a first iron column, a first iron core and a first spring; the first shell is provided with a waist support air inlet and an H valve air outlet which are connected with an air source, a first hole connected with the H valve air outlet is formed between the first shell and the first iron column, a first exhaust hole is formed in the first iron core, and the first iron column, the first iron core and the first spring control opening and closing of the first exhaust hole and the waist support air inlet; the O electromagnetic valve comprises a second shell, a second iron column, a second iron core and a second spring, the axis of the second iron column is parallel to the first iron column, the second shell is provided with an O valve air inlet connected with the H valve air outlet and an O valve air outlet connected with the massage air bag, the second iron column, the second iron core and the second spring control opening and closing of the O valve air outlet, and the O valve air outlet can be completely plugged by the second iron column. Therefore, the pressure maintaining effect of the waist support air bag is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to car seat massage device technical field, especially a kind of waist support solenoid valve and seat pneumatic waist support massage system. BACKGROUND

[0002] With the increase of the number of cars and the continuous improvement of people's living standards, the driving comfort of the car has been increasingly widespread attention. Among them, the waist support and massage function of car seat is an important part of the comfort of car.

[0003] The car seat waist support massage system uses massage solenoid valve to control the inflation and deflation of massage air bag, and uses waist support solenoid valve to control the inflation and deflation and pressure maintaining state of waist support air bag. The waist support solenoid valve includes an air inlet valve and an air outlet valve. By controlling the energization state of the air inlet valve and / or the air outlet valve, the inflation and deflation and pressure maintaining state of the waist support air bag are changed. In the prior art, when the waist support solenoid valve deflates, the gas in the waist support air bag leaks through the gap between the iron column of the air inlet valve and the shell. This deflation method can cause the gas in the waist support air bag to leak when the waist support solenoid valve is in the pressure maintaining state, affecting the pressure maintaining effect of the waist support air bag.

[0004] Therefore, how to design a waist support solenoid valve and seat pneumatic waist support massage system to improve the pressure maintaining effect of the waist support air bag is a technical problem that needs to be solved by those skilled in the art. UTILITY MODEL CONTENT

[0005] The utility model aims at the defects and deficiencies in the prior art, and provides a waist support solenoid valve and seat pneumatic waist support massage system to improve the pressure maintaining effect of the waist support air bag.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] The utility model provides a kind of waist support solenoid valve, including H solenoid valve and O solenoid valve;

[0008] The H solenoid valve includes a first housing, a first iron column, a first iron core and a first reset element between the first iron core and the first iron column;The first housing is provided with a waist support air inlet connected with air source and an H valve air outlet capable of being communicated with the waist support air inlet, a first gap is provided between the first housing and the first iron column, the first gap is communicated with the H valve air outlet, the inside of the first iron core is provided with a first exhaust hole capable of being communicated with the first gap, the first exhaust hole penetrates the first iron core along the axial direction, and the cooperation structure of the first iron column, the first iron core and the first reset element controls the opening and closing of the first exhaust hole and the waist support air inlet;

[0009] The O electromagnetic valve comprises a second shell, a second iron column, a second iron core and a second reset element, the axis of the second iron column is arranged side by side with the axis of the first iron column, the second shell is provided with an O valve air inlet connected with the H valve air outlet and an O valve air outlet connected with a massage air bag, and the cooperation structure of the second iron column, the second iron core and the second reset element controls the opening and closing of the O valve air outlet, and the second iron column can completely block the O valve air outlet.

[0010] Preferably, the axial both ends of the first iron core and the axial both ends of the second iron core are provided with sealing pads for enhancing the sealing performance.

[0011] Preferably, sealing rings are arranged between the first iron core and the first shell and between the second iron core and the second shell.

[0012] The utility model also provides a kind of seat pneumatic waist support massage system, including the waist support electromagnetic valve, massage electromagnetic valve, control panel piece, waist support air bag, massage air bag and air pump interface, the waist support electromagnetic valve and the massage electromagnetic valve are connected with the control panel piece by connector, the air pump interface is connected with air pump by pipeline, the waist support air inlet and the air inlet of the massage electromagnetic valve are connected with the air pump interface by pipeline, the O valve air outlet is equipped with waist support interface, the air outlet of the massage electromagnetic valve is equipped with massage interface, the waist support air bag is connected with the waist support interface by pipeline, and the massage air bag is connected with the massage interface by pipeline.

[0013] Preferably, the massage electromagnetic valve comprises a third shell, a third iron column, a third iron core and a third reset element, the third shell is provided with a massage air inlet communicated with gas source and a massage air outlet communicated with massage air bag, a third interstice is arranged between the third iron column and the third shell, the massage air outlet is communicated with the third interstice, a third exhaust hole communicated with the third interstice is arranged in the third iron core, the third exhaust hole penetrates the third iron core along the axial direction, and the cooperation structure of the third iron column, the third iron core and the third reset element controls the opening and closing of the massage air inlet and the third exhaust hole.

[0014] Preferably, it further comprises an air inlet channel and a shell for accommodating the air inlet channel and the control panel piece, the air inlet channel comprises a first air channel and a second air channel arranged oppositely, and a connecting air channel for connecting the first air channel and the second air channel.

[0015] The connecting air channel is provided with a gas inlet connected with the air pump interface, the first air channel is provided with a first outlet and a second outlet, the second air channel is provided with the second outlet, the first outlet is sealingly connected with the waist support air inlet, and the second outlet is sealingly connected with the massage air inlet.

[0016] Preferably, a gas pressure detection device is arranged on the connecting air passage near the gas inlet, and the gas pressure detection device is signal connected with the control board.

[0017] Preferably, at least two first outlets are arranged on the first air passage, and a waist support electromagnetic valve is arranged on each of the first outlets.

[0018] At least two second outlets are arranged on the first air passage and the second air passage, and a massage electromagnetic valve is arranged on each of the second outlets, and the second outlets on the second air passage are arranged in one-to-one correspondence with the second outlets on the first air passage.

[0019] Preferably, the shell comprises an upper shell and a lower shell which are detachably connected, and the air inlet passage and the control board are fixedly arranged in the lower shell.

[0020] Preferably, the air inlet passage is located at the lower part of the control board, and the control board is provided with a first through hole and a second through hole, the first outlet and the waist support air inlet are communicated through the first through hole, and the second outlet and the massage air inlet are communicated through the second through hole.

[0021] The utility model discloses relative to prior art has obtained following technical effect:

[0022] 1、 the utility model discloses when the O electromagnetic valve is powered off, the top surface of the second iron column completely blocks the O valve air outlet, so that the gas in the waist support air bag can not be discharged through the O valve air outlet, thereby improve the pressure -maintaining effect of waist support air bag. But because the O electromagnetic valve is powered on, the second iron column and the second iron core are completely attached, and the gas cannot be discharged, so as to make the waist support electromagnetic valve realize the technical effect of exhaust, the utility model discloses the connection relationship of O electromagnetic valve and H electromagnetic valve is changed from along the axial order to side -by -side arrangement, so that in the case where the O electromagnetic valve is powered on and the H electromagnetic valve is powered off, the exhaust of the waist support air bag is realized. In addition, the O electromagnetic valve and the H electromagnetic valve arranged side by side can also reduce the axial length of the waist support electromagnetic valve, and adapt to the demand of different types of seats.

[0023] Other technical schemes of the utility model relative to prior art have obtained following technical effect:

[0024] 2、 the utility model discloses that one waist support electromagnetic valve is installed on each first outlet, and one massage electromagnetic valve is installed on each second outlet, relative to the setting mode that only one electromagnetic valve is connected with the gas source, and the remaining electromagnetic valves are connected with this electromagnetic valve in turn in prior art, the cooperation precision requirement of the electromagnetic valve of the utility model is relatively low, thereby reducing production cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0026] Figure 1 It is a structure schematic view of H electromagnetic valve;

[0027] Figure 2 It is a structure schematic view of A-A section;

[0028] Figure 3 It is a structure schematic view of O electromagnetic valve;

[0029] Figure 4 It is a structure schematic view of B-B section;

[0030] Figure 5 It is a structure schematic view of lumbar support electromagnetic valve when the lumbar support air bag is inflated;

[0031] Figure 6 It is a structure schematic view of lumbar support electromagnetic valve when the lumbar support air bag is inflated;

[0032] Figure 7 It is a structure schematic view of lumbar support electromagnetic valve when the lumbar support air bag is inflated;

[0033] Figure 8 It is an explosion structure schematic view of seat pneumatic lumbar support massage system;

[0034] Figure 9 It is a side view structure schematic view of massage electromagnetic valve;

[0035] Figure 10 It is a section structure schematic view of C-C;

[0036] Figure 11 It is a front view structure schematic view of massage electromagnetic valve;

[0037] Figure 12 It is a front view structure schematic view of air inlet;

[0038] Figure 13 It is a side view structure schematic view of air inlet;

[0039] Figure 14 It is a section structure schematic view of D-D.

[0040] Among them, 1. H solenoid valve; 2. Lumbar support air inlet; 3. Pin; 4. H valve air outlet; 5. Upper sealing gasket; 6. First housing; 7. First iron pillar; 8. Lower sealing gasket; 9. First reset element; 10. Sealing ring; 11. First iron core; 12. First exhaust hole; 13. First orifice; 14. O solenoid valve; 15. O valve air inlet; 16. O valve air outlet; 17. Lumbar support interface; 18. Second housing; 19. Second iron pillar; 20. Second reset element; 21. Second iron core; 22. Second exhaust hole; 23. O valve air inlet; 24. O valve air outlet; 25. 26. Upper housing; 27. Massage solenoid valve; 28. Control panel; 29. ​​Air inlet; 30. Lower housing; 31. Air pressure detection device; 32. Second through hole; 33. First through hole; 34. Massage air outlet; 35. Third housing; 36. Third iron pillar; 37. Third reset element; 38. Third iron core; 39. Third exhaust hole; 40. Massage air inlet; 41. Massage interface; 42. First air passage; 43. First outlet; 44. Second outlet; 45. Second air passage; 46. Connecting air passage; 47. Gas inlet; 48. Air path conversion connector. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] like Figures 1 to 4 As shown, this utility model provides a lumbar support solenoid valve, including an H solenoid valve 1 and an O solenoid valve 14. The H solenoid valve 1 includes a first housing 6, a first iron column 7, a first iron core 11, and a first reset element 9 located between the first iron core 11 and the first iron column 7. The first housing 6 is provided with a lumbar support air inlet 2 connected to an air source and an H valve air outlet 4 connected to the lumbar support air inlet 2. A first hole 13 is provided between the first housing 6 and the first iron column 7. The first hole 13 is connected to the H valve air outlet 4. The first iron core 11 is provided with a first exhaust hole 12 connected to the first hole 13. The first exhaust hole 12 passes through the first iron core 11 axially. The cooperative structure of the first iron column 7, the first iron core 11, and the first reset element 9 controls the opening and closing of the lumbar support air inlet 2 and the first exhaust hole 12.

[0044] The O solenoid valve 14 includes a second housing 18, a second iron column 19, a second iron core 21, and a second reset element 20. The axis of the second iron column 19 is arranged parallel to the axis of the first iron column 7. The second housing 18 is provided with an O valve inlet 23 connected to the H valve outlet 4 and an O valve outlet 24 connected to the waist support air bag. The cooperative structure of the second iron column 19, the second iron core 21, and the second reset element 20 controls the opening and closing of the O valve outlet 24, and the second iron column 19 can completely block the O valve outlet 24.

[0045] like Figure 5 As shown, when the lumbar support air bag is inflated, the electromagnetic coils of H solenoid valve 1 and O solenoid valve 14 are energized. Under the action of the magnetic field, the first iron core 11 and the first iron column 7 attract each other. The first iron column 7 moves downward against the force of the first reset element 9. At this time, the first iron column 7 is in complete contact with the first iron core 11, the first exhaust hole 12 is closed, the lumbar support air inlet 2 is opened and connected to the H valve air outlet 4. Similarly, the second iron core 21 and the second iron column 19 attract each other, the O valve air outlet 24 is opened and connected to the O valve air inlet 23. The gas flows into the lumbar support air bag after passing through the lumbar support air inlet 2, H valve air outlet 4, O valve air inlet 23 and O valve air outlet 24.

[0046] like Figure 6 As shown, when the lumbar support air bag is pressurized, the O solenoid valve 14 is de-energized, and the second iron column 19 moves upward under the push of the second reset element 20. At this time, the second iron column 19 completely blocks the O valve outlet 24 to prevent the gas in the lumbar support air bag from leaking out.

[0047] like Figure 7 As shown, when the gas in the lumbar support air bag is discharged, the O solenoid valve 14 is energized, the O valve outlet 24 opens and connects with the O valve inlet 23, the H solenoid valve 1 is de-energized, the first iron column 7 completely blocks the lumbar support inlet 2 under the push of the first reset element 9, the first exhaust hole 12 opens and connects with the first gap 13, and the gas in the lumbar support air bag flows out through the O valve outlet 24, the O valve inlet 23, the H valve outlet 4, the first gap 13 and the first exhaust hole 12. Figure 5 , Figure 6 , Figure 7 The dashed lines in the diagram represent the gas flow path.

[0048] In one embodiment, both the O-valve outlet 24 and the second iron pillar 19 are axisymmetric structures, and the O-valve outlet 24 and the second iron pillar 19 are coaxial. The width of one side of the second iron pillar 19 is greater than the width of one side of the O-valve outlet 24. The waist support inlet 2 and the H-valve outlet 4 are both located on the side of the first iron pillar 7 away from the first iron core 11, and the O-valve inlet 23 and the O-valve outlet 24 are both located on the side of the second iron pillar 19 away from the second iron core 21. The second iron core 21 has a second exhaust hole that extends axially through its interior.

[0049] In order to improve the sealing performance, the axial both ends of the first iron column 7 and the axial both ends of the second iron core 21 are provided with sealing pads, specifically, the sealing pads on the side of the first iron column 7 close to the air inlet 2 of the waist support and on the side of the second iron column 19 close to the O valve air outlet 24 are upper sealing pads 5, the sealing pads on the side of the first iron column 7 close to the first reset element 9 and on the side of the second iron column 19 close to the second reset element 20 are lower sealing pads 8, through the arrangement of the upper sealing pads 5 and the lower sealing pads 8, the sealing performance of the electromagnetic valve can be improved, and the impact sound between the iron core and the iron column, the iron column and the shell can be reduced, and a certain sound reduction effect can be achieved.

[0050] In some embodiments, sealing rings 10 are arranged between the first iron core 11 and the first shell 6 and between the second iron core 21 and the second shell 18, so as to further improve the sealing performance.

[0051] As shown in Figure 8 The utility model also provides a seat pneumatic waist support massage system, including control board piece 27, waist support electromagnetic valve, massage electromagnetic valve 26, waist support air bag and massage air bag, and waist support electromagnetic valve and massage electromagnetic valve 26 are connected with control board piece 27 through connector, and the air inlet of waist support air inlet 2 and massage electromagnetic valve is connected with air pump through pipeline, and is equipped with waist support interface 17 at O valve air outlet 24, and is equipped with massage interface 41 at the air outlet of massage electromagnetic valve, and waist support air bag is connected with waist support interface 17 through pipeline, and massage air bag is connected with massage interface 41 through pipeline, can carry out massage and / or support to waist according to need through control board piece 27 changes the energization condition of the coil of waist support electromagnetic valve and massage electromagnetic valve 26. In an embodiment, the connector is a pin on the electromagnetic valve, and the pin is connected to the control board piece 27 by welding.

[0052] As shown in Figures 9 to 11 The massage electromagnetic valve 26 includes a third shell 34, a third iron column 35, a third iron core 37 and a third reset element 36, the third shell 34 is provided with a massage air inlet 40 communicated with the gas source and a massage air outlet 33 communicated with the massage air bag, the third iron column 35 and the third shell 34 are provided with a third interstice 39, the massage air outlet 33 is communicated with the third interstice 39, the third iron core 37 is provided with a third exhaust hole 38 communicated with the third interstice 39, the third exhaust hole 38 penetrates the third iron core 37 along the axial direction, and the cooperation structure of the third iron column 35, the third iron core 37 and the third reset element 36 controls the opening and closing of the massage air inlet 40 and the third exhaust hole 38.

[0053] When massage is needed, the electromagnetic coil of the massage electromagnetic valve 26 is energized, under the action of the magnetic field, the third iron core 37 and the third iron column 35 attract each other, the third iron column 35 moves downward against the force of the third reset element 36, at this time the third iron column 35 and the third iron core 37 are in complete contact, the third exhaust hole 38 is closed, the massage air inlet 40 is opened and communicates with the massage air outlet 33, and the gas is inflated into the massage air bag through the massage air inlet 40 and the massage air outlet 33.

[0054] When exhaust is needed, the massage electromagnetic valve 26 is de-energized, under the pushing of the third reset element 36, the third iron core 37 completely blocks the massage air inlet 40, the third exhaust hole 38 is opened and communicates with the third interstice 39, and the gas in the massage air bag flows out through the massage air outlet 33, the third interstice 39 and the third exhaust hole 38. In some embodiments, the control board 27 is a PCB board.

[0055] As shown in Figures 12 to 14 The seat pneumatic waist support massage system provided by the utility model further includes an air inlet channel 28 and a shell for containing the air inlet channel 28 and the control board 27, the air inlet channel 28 includes oppositely arranged first and second air channels 42 and 45, and a connecting air channel 46 for connecting the first and second air channels 42 and 45; the connecting air channel 46 is provided with a gas inlet 47 connected with a gas source, the first air channel 42 is provided with first and second outlets 43 and 44, the second air channel 45 is provided with the second outlet 44, the first outlet 43 is in sealed connection with the waist support air inlet 2, and the second outlet 44 is in sealed connection with the massage air inlet 40, so that the waist support electromagnetic valve and the massage electromagnetic valve 26 are supplied with gas through the air inlet channel 28.

[0056] The connecting air channel 46 is provided with a gas pressure detection device 30 close to the gas inlet 47, and the gas pressure detection device 30 is in signal connection with the control board 27. The gas pressure detection device 30 can detect the pressure of the input gas, so that the waist support air bag and / or the massage air bag are prevented from being burst by excessive gas pressure.

[0057] The first air channel 42 is provided with at least two first outlets 43, and one waist support electromagnetic valve is installed at each first outlet 43; the first and second air channels 42 and 45 are provided with at least two second outlets 44, one massage electromagnetic valve 26 is installed at each second outlet 44, and the second outlets 44 on the second air channel 45 are arranged in one-to-one correspondence with the second outlets 44 on the first air channel 42. The number of the first and second outlets 43 and 44 can be set according to needs, so that different waist support massage forms such as 3-waist support air bag 8-point massage, 3-waist support air bag 10-point massage and 2-waist support air bag 10-point massage are realized.

[0058] The shell comprises an upper shell 25 and a lower shell 29 connected detachably, and the air inlet channel 28 and the control plate 27 are fixedly arranged in the lower shell 29. Specifically, the air inlet channel 28 is located at the lower part of the control plate 27, the control plate 27 is provided with a first through hole 32 and a second through hole 31, the first outlet 43 and the waist support air inlet 2 are connected and communicated through the first through hole 32, and the second outlet 44 and the massage air inlet 40 are connected and communicated through the second through hole 31. In some embodiments, the upper shell 25 and the lower shell 29 are both plastic parts, and the two are connected together through buckling; the first air channel 42 and the connecting air channel 46, and the second air channel 45 and the connecting air channel 46 are connected through the air path conversion joint 48. The first reset element 9, the second reset element 20 and the third reset element 36 are all reset springs, the first iron column 7, the second iron column 19 and the third iron column 35 all adopt plum blossom edge shapes to allow air flow to pass through the side edges thereof. The first iron core 11, the second iron core 21 and the third iron core 37 are all provided with reset element accommodating cavities in the interiors thereof, and the reset springs are placed in the reset element accommodating cavities.

[0059] It should be noted that, for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A lumbar support solenoid valve characterized by: The H electromagnetic valve and the O electromagnetic valve are included. The H electromagnetic valve includes a first shell, a first iron column, a first iron core and a first reset element between the first iron core and the first iron column; the first shell is provided with a waist support air inlet connected with an air source and an H valve air outlet connected with the waist support air inlet; a first gap is arranged between the first shell and the first iron column, the first gap is connected with the H valve air outlet; a first exhaust hole is arranged in the first iron core and connected with the first gap; a cooperation structure of the first iron column, the first iron core and the first reset element controls opening and closing of the first exhaust hole and the waist support air inlet. The O electromagnetic valve includes a second shell, a second iron column, a second iron core and a second reset element; the second iron column is arranged in parallel with the first iron column; the second shell is provided with an O valve air inlet connected with the H valve air outlet and an O valve air outlet connected with a massage air bag; a cooperation structure of the second iron column, the second iron core and the second reset element controls opening and closing of the O valve air outlet; and the second iron column can completely block the O valve air outlet.

2. The lumbar support solenoid valve according to claim 1, characterized in that: Axial ends of the first iron core and axial ends of the second iron core are provided with sealing pads for enhancing sealing performance.

3. The lumbar support solenoid valve of claim 2, wherein: Sealing rings are arranged between the first iron core and the first shell and between the second iron core and the second shell.

4. A pneumatic lumbar support massage system for a seat, characterized by: The waist support electromagnetic valve and the massage electromagnetic valve are connected with the control board through connectors; the waist support air inlet and the massage electromagnetic valve air inlet are connected with an air pump through pipelines; the O valve air outlet is provided with a waist support interface; the massage electromagnetic valve air outlet is provided with a massage interface; the waist support air bag is connected with the waist support interface through a pipeline; and the massage air bag is connected with the massage interface through a pipeline.

5. The pneumatic lumbar support and massage system of claim 4, wherein: The massage electromagnetic valve includes a third shell, a third iron column, a third iron core and a third reset element; the third shell is provided with a massage air inlet connected with an air source and a massage air outlet connected with a massage air bag; a third gap is arranged between the third iron column and the third shell; the massage air outlet is connected with the third gap; a third exhaust hole is arranged in the third iron core and connected with the third gap; and a cooperation structure of the third iron column, the third iron core and the third reset element controls opening and closing of the massage air inlet and the third exhaust hole.

6. The pneumatic lumbar support massage system of claim 4, wherein: The air inlet channel includes oppositely arranged first and second air channels and a connecting air channel for connecting the first and second air channels; The connecting air passage is provided with a gas inlet connected with the air pump, the first air passage is provided with a first outlet and a second outlet, the second air passage is provided with the second outlet, the first outlet is in sealed connection with the waist support gas inlet, and the second outlet is in sealed connection with the massage gas inlet.

7. The pneumatic lumbar support and massage system of claim 6, wherein: The connecting air passage is provided with a gas inlet connected with the air pump, the first air passage is provided with a first outlet and a second outlet, the second air passage is provided with the second outlet, the first outlet is in sealed connection with the waist support gas inlet, and the second outlet is in sealed connection with the massage gas inlet.

8. The pneumatic lumbar support massage system of claim 7, wherein: The first air passage is provided with at least two first outlets, and one waist support electromagnetic valve is arranged at each first outlet. The first air passage and the second air passage are provided with at least two second outlets, and one massage electromagnetic valve is arranged at each second outlet.

9. The pneumatic lumbar support massage system of claim 6, wherein: The shell comprises an upper shell and a lower shell which are detachably connected, and the air inlet passage and the control board are fixedly arranged in the lower shell.

10. The pneumatic lumbar support massage system of claim 9, wherein: The air inlet passage is located at the lower part of the control board, the control board is provided with a first through hole and a second through hole, the first outlet and the waist support gas inlet are communicated through the first through hole, and the second outlet and the massage gas inlet are communicated through the second through hole.

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