Valve assembly, suspension assembly and vehicle

Abstract

According to the valve assembly, the suspension assembly and the vehicle, a sealing piece is arranged in the valve assembly and movably arranged in a second channel, and when an air bag or an air storage tank in a suspension system needs to be deflated, a gap is formed between at least part of the sealing piece and the cavity wall of the second channel, so that the first channel communicates with the second channel, and the first channel is communicated with the second channel; compared with the technical scheme that a valve seat is arranged in a channel of the integrated intake and exhaust valve in the related technology, and the deflation function of the integrated intake and exhaust valve is achieved through a channel in the valve seat, the valve seat in the related technology is not installed in the second channel in the embodiment of the invention, namely, the gas flow in the second channel is higher, and the deflation effect is better. Therefore, the valve assembly can achieve the quick exhaust function, and the requirement for quick descending of an automobile body is met.

Description

Technical Field

[0001] The present application relates to the technical field of automobiles, and particularly relates to a valve assembly, a suspension assembly and a vehicle. Background Art

[0002] In the related art, an integrated intake and exhaust valve for an air suspension is provided with an electromagnetic valve mounted on a valve body structure provided with an air passage to achieve the intake and exhaust functions of the integrated intake and exhaust valve; wherein, the electromagnetic valve is integrally mounted on the valve body structure and the valve seat of the electromagnetic valve is also located in the air passage. When the vehicle body needs to descend, the air passage on the valve body structure communicates with the air passage on the valve seat of the electromagnetic valve, so that the air suspension exhausts through the integrated intake and exhaust valve.

[0003] However, due to the installation of the valve seat of the electromagnetic valve, the air passage on the valve body structure becomes narrow, and at the same time, the gas flow rate of the air passage on the valve seat of the electromagnetic valve is low, making it difficult for the integrated intake and exhaust valve to achieve a fast exhaust function, and thus unable to meet the requirement of the rapid descent of the vehicle body. Utility Model Content

[0004] The embodiments of the present application provide a valve assembly, a suspension assembly and a vehicle, which can improve the exhaust speed of the integrated intake and exhaust valve in the related art, so as to meet the requirement of the rapid descent of the vehicle body and at least partially solve the above technical problems.

[0005] To achieve the above object, according to the first aspect of the present application, a suspension motor is provided, including:

[0006] A valve body including a first passage and a second passage, and the second passage communicates with the first passage;

[0007] A sealing assembly connected to the valve body and including a seal, at least a part of the seal is located in the second passage and can move relative to the valve body;

[0008] Wherein, the seal has a first state and a second state. When the seal is in the first state, the seal abuts against the cavity wall of the second passage, so that the first passage and the second passage are not communicated; when the seal is in the second state, there is a gap between at least a part of the seal and the cavity wall of the second passage, so that the first passage and the second passage are communicated.

[0009] Optionally, the valve body includes a mating part, the mating part is arranged in the second passage, and air holes are arranged on the mating part, and the second passage 3 communicates with the first passage 2 through the air holes;

[0010] When the seal is in the first state, the seal abuts against the mating part and covers the air holes; when the seal is in the second state, there is a gap between the seal and the air holes.

[0011] Optionally, the second channel includes sub-channels that extend in a first direction, and the engaging portion is disposed within the sub-channels;

[0012] Wherein, the seal is movably disposed within the sub-channel in the first direction.

[0013] Optionally, an installation port is provided on the valve body, and the installation port is in communication with one end of the sub-channel 31;

[0014] The sealing assembly further includes:

[0015] A housing that is connected to the valve body; and

[0016] A driving member disposed within the housing, and an output end of the driving member is connected to the seal for driving the seal to move in the first direction.

[0017] Optionally, the driving member includes:

[0018] An electromagnetic coil assembly disposed within the housing; and

[0019] A first magnet movably disposed within the electromagnetic coil assembly in the first direction, and the first magnet is connected to the seal.

[0020] Optionally, the electromagnetic coil assembly includes:

[0021] An electromagnetic coil disposed within the housing; and

[0022] A second magnet disposed within the electromagnetic coil;

[0023] Wherein, the first magnet and the second magnet are oppositely disposed in the first direction.

[0024] Optionally, the valve body further includes a support portion, and at least a part of the support portion abuts against the second magnet in the first direction.

[0025] Optionally, the driving member further includes an elastic member, and two ends of the elastic member respectively abut against the engaging portion and the seal in the first direction.

[0026] Optionally, the engaging portion includes:

[0027] A connecting portion connected to the cavity wall of the second channel 3, and one end of the elastic member in the first direction abuts against the connecting portion; and

[0028] A limiting portion connected to the connecting portion and extending in the first direction, and the elastic member is correspondingly disposed around the limiting portion;

[0029] The air hole correspondingly penetrates through the connecting portion and the limiting portion in the first direction.

[0030] Optionally, the first channel is a one-way channel.

[0031] Optionally, the valve assembly further includes a first check valve disposed in the first passage.

[0032] Optionally, the valve assembly further includes a third passage which is a one-way passage. The air outlet end of the third passage is configured to be connected to the auxiliary air storage tank, and the air inlet end of the third passage communicates with the first passage.

[0033] Optionally, the valve assembly further includes a second check valve disposed in the third passage.

[0034] Optionally, the valve assembly further includes a pressure sensor mounted on the valve body, and the pressure sensor is configured to detect the pressure in the third passage.

[0035] According to a second aspect of the present application, there is provided a suspension assembly, including:

[0036] a valve assembly; and

[0037] an air compressor connected to the air outlet end of the first passage.

[0038] According to a third aspect of the present application, there is provided a vehicle including the suspension assembly.

[0039] In the valve assembly of the embodiments of the present application, by providing a seal member which is movably disposed in the second passage, when the airbag or the air storage tank in the suspension system needs to deflate, there is a gap between at least a part of the seal member and the cavity wall of the second passage, so that the first passage and the second passage communicate. Compared with the technical solution in the related art where a valve seat is provided in the passage of the integrated intake and exhaust valve, and the deflation function of the integrated intake and exhaust valve is realized through the passage on the valve seat, in the embodiments of the present application, the valve seat in the related art is not installed in the second passage, that is, the gas flow rate in the second passage is higher, so that the valve assembly can realize the function of rapid exhaust, and further meet the requirement of rapid descent of the vehicle body.

[0040] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0042] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, where the same reference numerals represent the same parts in the following description.

[0043] Figure 1 It is a schematic diagram of the overall structure of the valve assembly provided in the exemplary embodiment of the present application;

[0044] Figure 2 It is an exploded view of the valve assembly provided in the exemplary embodiment of the present application;

[0045] Figure 3 It is a cross-sectional view of the valve assembly provided in the exemplary embodiment of the present application;

[0046] Figure 4 It is an assembly diagram of the electromagnetic coil and the coil bracket provided in the exemplary embodiment of the present application;

[0047] Figure 5 It is a partial assembly diagram of the driving member provided in the exemplary embodiment of the present application;

[0048] Figure 6 It is a cross-sectional view of the first one-way valve provided in the exemplary embodiment of the present application.

[0049] Explanation of reference numerals:

[0050] 1. Valve body; 11. Fitting part; 111. Connecting part; 112. Limiting part; 12. Supporting part; 2. First channel; 21. Intake end; 22. Outlet end; 3. Second channel; 31. Sub-channel; 4. Sealing assembly; 41. Sealing element; 42. Housing; 43. Driving member; 431. Electromagnetic coil assembly; 4311. Electromagnetic coil; 4312. Second magnet; 432. First magnet; 433. Elastic member; 44. Coil bracket; 45. Cover; 5. Air hole; 6. Mounting opening; 7. First one-way valve; 71. Valve body; 72. Valve disc; 73. Limiting member; 74. Spring; 8. Third channel; 9. Second one-way valve; 10. Pressure sensor; 13. Main body part; 14. First end cover; 15. Second end cover; 16. Air nozzle; 17. Pin; 18. Sealing gasket; 19. Buffer pad; 20. Washer. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0052] The present application proposes a valve assembly, Figures 1 to 6 For some embodiments of the present application. The X direction in the drawings is the first direction.

[0053] Please refer to Figures 1 to 3, the valve assembly includes a valve body 1, the valve body 1 includes a first passage 2, and an air compressor is connected to the air outlet end 22 of the first passage 2.

[0054] The valve body 1 further includes a second passage 3, and the second passage 3 communicates with the first passage 2. When the suspension system needs to exhaust air, the gas in the suspension system enters the first passage 2 from the air outlet end 22 of the first passage 2, and then is discharged into the air through the second passage 3.

[0055] The valve body 1 further includes a seal 41, and the seal 41 has a first state and a second state. When the seal 41 is in the first state, the seal 41 abuts against the cavity wall of the second passage 3 so that the first passage 2 and the second passage 3 are not communicated; when the seal 41 is in the second state, there is a gap between at least part of the seal 41 and the cavity wall of the second passage 3 so that the first passage 2 and the second passage 3 are communicated.

[0056] Among them, when the airbag or the air storage tank of the suspension system needs to be inflated, the seal 41 is in the first state, and the second passage 3 is not communicated with the first passage 2. The air compressor can inflate the airbag or the air storage tank through the first passage 2. When the airbag or the air storage tank in the suspension system needs to deflate, the seal 41 is in the second state, and the second passage 3 is communicated with the first passage 2. The gas discharged from the air compressor can be discharged into the air through the first passage 2 and the second passage 3.

[0057] In the technical solution of the present application, by providing a seal 41, and the seal 41 is movably arranged in the second passage 3. When the airbag or the air storage tank in the suspension system needs to deflate, there is a gap between at least part of the seal 41 and the cavity wall of the second passage 3, so that the first passage 2 and the second passage 3 are communicated. Compared with the technical solution in the related art that a valve seat is arranged in the passage of the integrated intake and exhaust valve, and the deflation function of the integrated intake and exhaust valve is realized through the passage on the valve seat, in the second passage 3 of the embodiment of the present application, there is no valve seat in the related art installed, that is, the gas flow rate in the second passage 3 is higher, so that the valve assembly can realize the function of rapid exhaust, and further meet the requirement of the rapid descent of the vehicle body.

[0058] In some embodiments of the present application, the valve body 1 includes a mating portion 11 disposed in the second channel 3, and an air hole 5 is provided on the mating portion 11. The second channel 3 communicates with the first channel 2 through the air hole 5. When the seal 41 is in the first state, the seal 41 abuts against the mating portion 11 and covers the air hole 5. When the seal 41 is in the second state, there is a gap between the seal 41 and the air hole 5. That is, in this embodiment, by providing that the seal 41 covers the air hole 5 or has a gap with the air hole 5 when switching between the first state and the second state, the first channel 2 and the second channel 3 are spaced apart or communicated with each other, so that the valve assembly can be switched to the air intake state and the air outlet state according to different action requirements of the suspension assembly.

[0059] In some embodiments of the present application, a sealing gasket 18 is further provided on the side of the seal 41 close to the air hole 5. The sealing gasket 18 can improve the sealing performance between the seal 41 and the mating portion 11 when the seal 41 is in the first state.

[0060] It can be understood that by disposing the mating portion 11 in the second channel 3 and providing the air hole 5 on the mating portion 11, the valve seat in the related art can be cancelled, and the aperture of the air hole 5 is larger than the diameter of the flow channel on the valve seat in the related art. Therefore, the gas flow rate through the air hole 5 per unit time is greater than the gas flow rate through the flow channel on the valve seat in the related art per unit time.

[0061] Please refer to Figure 3 , in some embodiments of the present application, the second channel 3 includes a sub-channel 31 extending along the first direction X, and the mating portion 11 is disposed in the sub-channel 31. Among them, the seal 41 is movably disposed in the sub-channel 31 along the first direction X. In this embodiment, by providing that the seal 41 moves along the first direction X, so that when the seal 41 switches between the first state and the second state, it covers the air hole 5 or has a gap with the air hole 5, the first channel 2 and the second channel 3 are spaced apart or communicated with each other, so that the valve assembly is switched to the air intake state and the air outlet state according to different action requirements of the suspension assembly.

[0062] In some embodiments of the present application, an installation port 6 is provided on the valve body 1, and the installation port 6 communicates with one end of the sub-channel 31. The sealing assembly 4 further includes a housing 42 and a driving member 43. The housing 42 is connected to the valve body 1. The driving member 43 is disposed in the housing 42, and the output end of the driving member 43 is connected to the seal 41 for driving the seal 41 to move along the first direction X. Among them, a sealing ring is further provided at the connection between the housing 42 and the valve body 1 to prevent gas from leaking from the installation port 6.

[0063] In some embodiments of the present application, the driving member 43 includes an electromagnetic coil assembly 431 disposed within the housing 42; a first magnet 432 is movably disposed within the electromagnetic coil assembly 431 along the first direction X, and the first magnet 432 is connected to the seal 41. Wherein, the electromagnetic coil assembly 431 can drive the first magnet 432 to move along the first direction X by passing an electric current. When positive and negative currents are passed through the electromagnetic coil assembly 431, the first magnet 432 can move away from or close to the valve body 1 in the first direction X, thereby driving the seal 41 to switch between the first state and the second state.

[0064] In some embodiments of the present application, the electromagnetic coil assembly 431 includes an electromagnetic coil 4311 and a second magnet 4312. The electromagnetic coil 4311 is disposed within the housing 42, and the second magnet 4312 is disposed within the battery coil. Wherein, the first magnet 432 and the second magnet 4312 are oppositely disposed in the first direction X; that is, the electromagnetic coil 4311 can make the second magnet 4312 attract or repel the first magnet 432 by passing positive and negative currents, thereby causing the first magnet 432 to move away from or close to the valve body 1 in the first direction X, and further driving the seal 41 to switch between the first state and the second state.

[0065] In some embodiments of the present application, the valve body 1 further includes a support portion 12, and at least a part of the support portion 12 abuts against the second magnet 4312 in the first direction X. That is, the support portion 12 can cooperate to limit the second magnet 4312 to prevent the second magnet 4312 from falling off the electromagnetic coil 4311.

[0066] Please refer to Figure 4 , in some embodiments of the present application, the sealing assembly 4 further includes a coil bracket 44 for mounting the electromagnetic coil 4311; wherein, the coil bracket 44 is fixedly disposed within the housing 42, and a pin 17 connected to the electromagnetic coil 4311 is further disposed on the housing 42, and the pin 17 can be connected to electrical components in the vehicle.

[0067] In some embodiments of the present application, the seal 41 further includes a cover body 45 disposed between the second magnet 4312 and the coil bracket 44, thereby limiting the second magnet 4312.

[0068] In some embodiments of the present application, the first magnet 432 is disposed between the second magnet 4312 and the housing 42. A through-hole is provided on the second magnet 4312, and a part of the seal 41 passes through the through-hole on the second magnet 4312 and is connected to the first magnet 432. When the seal 41 is in the second state, the first magnet 432 will move upward in the first direction X to abut against the housing 42. Therefore, a buffer pad 19 is further provided on the side of the first magnet 432 close to the housing 42 in the first direction X to reduce the noise in the sealing assembly 4.

[0069] Please refer to Figure 5 , in some embodiments of the present application, the driving member 43 further includes an elastic member 433. The two ends of the elastic member 433 in the first direction X respectively abut against the mating portion 11 and the seal 41, that is, the elastic member 433 can abut against the seal 41 to separate the seal 41 from the mating portion 11. Therefore, in this embodiment, when the electromagnetic coil 4311 is powered off, the elastic member 433 can abut against the seal 41 to move the seal 41 to the second state. When the electromagnetic coil 4311 is powered off, the first magnet 432 and the second magnet 4312 attract each other, so that the seal 41 overcomes the elastic resistance of the elastic member 433 to cover the through-hole, that is, the seal 41 is in the first state.

[0070] Wherein, the arrangement of the elastic member 433 can prevent the electromagnetic coil 4311 from being always powered on, which can not only effectively save energy, but also prevent the electromagnetic coil 4311 from being damaged due to long-term use.

[0071] In some embodiments of the present application, the mating portion 11 includes a connecting portion 111 and a limiting portion 112. The connecting portion 111 is connected to the cavity wall of the second channel 3; the limiting portion 112 is connected to the connecting portion 111 and extends along the first direction X. The elastic member 433 is correspondingly disposed around the limiting portion 112; the air hole 5 correspondingly penetrates through the connecting portion 111 and the limiting portion 112 in the first direction X; wherein, the limiting portion 112 can limit the position of the elastic member 433 to prevent the position of the elastic member 433 from changing during repeated expansion and contraction.

[0072] In some embodiments of the present application, the valve body 1 includes a main body portion 13, and both the first channel 2 and the second channel 3 are formed on the main body portion 13.

[0073] The valve body 1 further includes a first end cover 14. The first end cover 14 is connected to the valve body 1, and the inner cavity of the first end cover 14 is communicated with the first channel 2, that is, an air inlet end 21 of the first channel 2 is formed on the first end cover 14.

[0074] In some embodiments of the present application, the first channel 2 is a one-way channel, that is, the first channel 2 includes an air inlet end 21 and an air outlet end 22, and the first channel 2 only allows gas to flow in from the air inlet end 21 of the first channel 2 and flow out from the air outlet end 22 of the first channel 2; wherein, when the airbag or the air storage tank in the suspension system needs to deflate, the seal 41 is in the second state, the second channel 3 is communicated with the first channel 2, and the gas discharged from the air compressor can enter the first channel 2 through the air outlet end 22 of the first channel 2. Since the first channel 2 is a one-way channel, the air entering the first channel 2 can only flow into the second channel and be discharged into the air.

[0075] In some embodiments of the present application, the valve assembly further includes a first check valve 7, and the first check valve 7 is arranged in the first channel 2, that is, the arrangement of the first check valve 7 makes the first channel 2 a one-way flow channel.

[0076] Please refer to Figure 6 , the first check valve 7 includes a valve body 71 and a valve disc 72. The valve body 71 is fixed in the first channel 2. At least part of the valve disc 72 passes through the valve body 71 and is fixedly connected with a limiting member 73. A spring 74 is arranged between the valve body 71 and the valve disc 72. The spring 74 is in a compressed state, and the limiting member restricts the valve disc 72 from disengaging from the valve body 71; wherein, the first check valve 7 includes an air inlet side and an air outlet side. The air inlet side faces the air inlet end 21 of the first channel 2, and the air outlet side faces the air outlet end 22 of the first channel 2. When the air pressures on the air inlet side and the air outlet side are equal, at this time, under the action of the spring 74, the sealing ring on the valve disc 72 cuts off the flow channel between the air inlet side and the air outlet side, so that the valve body 71 is in a closed state. When the air pressure on the air outlet side is greater than the air pressure on the air inlet side, the direction of the pressure generated by the pressure difference is from the air outlet side to the air inlet side. At this time, under the action of the pressure difference force and the spring 74, the valve disc 72 will squeeze the sealing ring with greater force, so that the compression amount of the sealing ring is greater, and the sealing effect between the valve body 71 and the valve disc 72 is better; when the air pressure on the air inlet side is greater than the air pressure on the air outlet side, at this time, the direction of the pressure generated by the pressure difference is from the air inlet side to the air outlet side. When the pressure difference force is greater than the elastic force of the spring 74, the valve disc 72 drives the sealing ring to move away from the valve body 71. At this time, the flow channels on the air inlet side and the air outlet side are communicated, and gas can flow from the air inlet side to the air outlet side.

[0077] Wherein, the first check valve 7 is fixed between the valve body 1 and the first end cover 14, so as to facilitate the installation and maintenance of the first check valve 7. At the same time, a gasket 20 is also arranged between the first end cover 14 and the valve body 1. The gasket 20 is made of rubber material, so as to prevent the first end cover 14 from falling off.

[0078] In some embodiments of the present application, the valve assembly further includes a third passage 8. The third passage 8 is a one-way passage. The air outlet end of the third passage 8 is configured to be connected to the auxiliary air storage tank. The air inlet end of the third passage 8 communicates with the first passage 2. The gas flow direction in the third passage 8 is from the air inlet end of the third passage 8 to the air outlet end of the third passage 8.

[0079] When the airbag or the air storage tank of the suspension system needs to be inflated, the air compressor starts. At this time, since the third passage 8 is a one-way flow passage, the high-pressure gas in the auxiliary air storage tank cannot flow back into the first passage 2. In addition, the seal 41 is in the first state, so that the airbag or the air storage tank of the suspension system can be inflated through the first passage 2; when the auxiliary air storage tank needs to be replenished with air, the high-pressure gas in the suspension system returns to the first passage 2 through the air compressor. Since the high-pressure gas cannot pass through the air inlet end 21 of the first passage 2 and the seal 41 is in the first state, the gas flow direction is from the first passage 2 to the third passage 8, realizing the air replenishment operation of the auxiliary air storage tank.

[0080] In some embodiments of the present application, the valve assembly further includes a pressure sensor 10. The pressure sensor 10 is installed on the valve body 1. The pressure sensor 10 is configured to detect the pressure in the third sub-passage 31; that is, in this embodiment, when the valve assembly replenishes air to the auxiliary air storage tank, when the pressure sensor 10 detects that the pressure of the auxiliary air storage tank reaches the standard, the control system in the vehicle controls the seal 41 to be in the second state, so that the first passage 2 and the second passage 3 communicate, thereby discharging the high-pressure gas into the air.

[0081] In some embodiments of the present application, the valve body 1 further includes a second end cap 15 and a nozzle 16. The second end cap 15 is connected to the valve body 1. The inner cavity of the second end cap 15 communicates with the first passage 2 to form the third passage 8, and the second end cap 15 communicates with the auxiliary air storage tank through the nozzle 16.

[0082] The valve assembly further includes a second one-way valve 9. The second one-way valve 9 is arranged in the third passage 8; that is, the arrangement of the second one-way valve 9 makes the third passage 8 a one-way flow passage.

[0083] In an embodiment of the present application, the structure of the second one-way valve 9 is the same as the structure of the first one-way valve 7.

[0084] The present application also proposes a suspension assembly, including a valve assembly and an air compressor. The air compressor is connected to the air outlet end 22 of the first passage 2. The valve assembly is as described above. Since this suspension assembly adopts all the technical solutions of the above-mentioned all embodiments, it at least has the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated here one by one.

[0085] The present application also provides a vehicle, including a suspension assembly as described above. Since this vehicle adopts all the technical solutions of the above-mentioned embodiments, it has at least the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated herein one by one.

[0086] The vehicle may be a fuel vehicle, a plug-in hybrid vehicle or a new energy vehicle, etc., and the present application does not make specific limitations thereto.

[0087] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0088] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0089] The embodiments, implementation manners and related technical features of the present application can be combined and replaced with each other without conflict.

[0090] The above are only the preferred embodiments of the present application and do not impose any form of limitation on the present application. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A valve assembly, characterized in that: include: A valve body, comprising a first channel and a second channel, wherein the second channel is in communication with the first channel; a sealing assembly connected to the valve body and comprising a sealing member, at least a portion of which is located in the second passage and is movable relative to the valve body; Wherein, the seal has a first state and a second state. When the seal is in the first state, the seal abuts against the cavity wall of the second channel so that the first channel and the second channel are not connected; when the seal is in the second state, there is a gap between at least part of the seal and the cavity wall of the second channel so that the first channel and the second channel are connected.

2. The valve assembly according to claim 1, characterized in that: The valve body comprises a matching portion, the matching portion is arranged in the second channel, and an air hole is arranged on the matching portion, and the second channel is connected with the first channel through the air hole; When the seal is in the first state, the seal abuts against the matching portion and covers the air hole; when the seal is in the second state, there is a gap between the seal and the air hole.

3. The valve assembly according to claim 2, characterized in that: The second channel includes a sub-channel, the sub-channel extends along a first direction, and the matching portion is arranged in the sub-channel; Wherein, the sealing member is movably arranged in the sub-channel along the first direction.

4. The valve assembly according to claim 3, characterized in that: The valve body is provided with a mounting port, and the mounting port is communicated with one end of the sub-channel; The sealing assembly also includes: a housing connected to the valve body; and A driving member is arranged in the housing, and an output end of the driving member is connected to the sealing member to drive the sealing member to move along the first direction.

5. The valve assembly according to claim 4, characterized in that: The driving member comprises: an electromagnetic coil assembly disposed in the housing; and The first magnet is movably arranged in the electromagnetic coil assembly along the first direction, and the first magnet is connected to the sealing member.

6. The valve assembly according to claim 5, characterized in that: The electromagnetic coil assembly comprises: an electromagnetic coil disposed in the housing; and A second magnet is disposed in the electromagnetic coil; Wherein, the first magnet and the second magnet are arranged opposite to each other in the first direction.

7. The valve assembly according to claim 6, characterized in that: The valve body further includes a support portion, at least a portion of which abuts against the second magnet in the first direction.

8. The valve assembly according to claim 4, characterized in that: The driving member further includes an elastic member, and two ends of the elastic member in the first direction are respectively in contact with the matching portion and the sealing member.

9. The valve assembly according to claim 8, characterized in that: The matching portion comprises: A connecting portion connected to the cavity wall of the second channel, one end of the elastic member in the first direction abutting against the connecting portion; and A limiting portion connected to the connecting portion and extending along the first direction, wherein the elastic member is disposed around the limiting portion accordingly; The air hole passes through the connecting portion and the limiting portion in the first direction.

10. The valve assembly according to claim 1, characterized in that: The first channel is a one-way channel.

11. The valve assembly according to claim 2, characterized in that: The valve assembly also includes a first one-way valve disposed in the first passage.

12. The valve assembly according to claim 1, characterized in that: The valve assembly further includes a third channel, which is a one-way channel. An air outlet end of the third channel is configured to be connected to the auxiliary air storage tank, and an air inlet end of the third channel is communicated with the first channel.

13. The valve assembly according to claim 12, characterized in that: The valve assembly further includes a second one-way valve disposed in the third passage.

14. The valve assembly according to claim 12, characterized in that: The valve assembly further includes a pressure sensor mounted on the valve body, wherein the pressure sensor is configured to detect a pressure in the third passage.

15. A suspension assembly, characterized in that: include: The valve assembly according to any one of claims 1 to 14; and An air compressor is connected to the air outlet end of the first channel.

16. A vehicle, characterized in that: Comprising the suspension assembly as claimed in claim 15.

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