Air distribution assembly, air suspension system and vehicle

Abstract

This application relates to an air distribution assembly, an air suspension system, and a vehicle. By selectively configuring one of a first control valve and a first sealing element on a first switching air passage, and selectively configuring one of a second control valve and a second sealing element on a second switching air passage, the first and second switching air passages can achieve air passage connectivity required for both closed-loop and open-loop modes. This improves the versatility of the air distribution assembly, allowing it to be applied to both open and closed air suspension systems. It eliminates the need for redesigning the air distribution assembly when changing to different air suspension systems, thus reducing manufacturing costs and shortening the manufacturing time for different air suspension systems.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to an air distribution assembly, an air suspension system, and a vehicle. Background Technology

[0002] The core function of an air suspension system is to raise and lower the vehicle by inflating and deflating air springs. Based on different air circuit principles, air suspension systems can be divided into two types: open and closed. Open air suspension systems mostly adopt a split structure, with the pump assembly and distribution valve combined. Closed air suspension systems adopt an integrated structure, with the entire air circuit integrated into the pump body. It is evident that the overall layout and structure of open and closed air suspension systems differ significantly, requiring custom mold design to install either type. It is not possible to switch between open and closed air suspension systems based on actual needs. Summary of the Invention

[0003] This application provides an air distribution assembly that improves the versatility of the air distribution assembly and at least partially solves the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a gas distribution assembly is provided, the gas distribution assembly having a closed-loop mode and an open-loop mode, the gas distribution assembly comprising:

[0005] The main body has multiple air passages, including a first switching air passage and a second switching air passage. The two ends of the first switching air passage are respectively used to connect to the air spring assembly and the air compression assembly of the air suspension system, and the two ends of the second switching air passage are respectively used to connect to the air tank of the air suspension system and the air spring assembly.

[0006] When the gas distribution system is in the closed-loop mode, a first control valve is provided on the first switching gas passage to control the opening and closing of the first switching gas passage, and a second control valve is provided on each of the second switching gas passages to control the opening and closing of the second switching gas passages.

[0007] When the gas distribution assembly is in the open passage mode, a first blocking element is provided on the first switching gas passage to disconnect the first switching gas passage, and a second blocking element is provided on the second switching gas passage. The second blocking element blocks the installation position of the second control valve on the second switching gas passage and avoids the flow path of the second switching gas passage, so as to make the second switching gas passage open.

[0008] Optionally, the inner wall of the first switching airway is provided with a first installation opening, and the first control valve and the first sealing member are selectively installed to the first installation opening.

[0009] Optionally, the first mounting opening includes a first mounting sub-opening and a second mounting sub-opening disposed opposite to each other;

[0010] When the first control valve is set in the first switching airway, the first control valve passes through the first mounting sub-opening and the second mounting sub-opening and is sealed and fixed.

[0011] When the first switching airway is equipped with the first blocking member, the first blocking member passes through the first mounting sub-opening and the second mounting sub-opening and blocks the first switching airway.

[0012] Optionally, the first sealing element includes a first sealing component and a first sealing body. The first sealing body passes through the first mounting sub-opening and the second mounting sub-opening and blocks the first switching air passage. The first sealing component abuts against the inner wall between the first sealing body and the first mounting sub-opening, and abuts against the inner wall between the first sealing body and the second mounting sub-opening.

[0013] Optionally, the first sealing assembly includes a first sealing ring and a second sealing ring, both of which are sleeved on the first sealing body. The first sealing ring abuts against the inner wall of the first mounting sub-opening and the first sealing body, and the second sealing ring abuts against the inner wall of the second mounting sub-opening and the first sealing body.

[0014] Optionally, the inner wall of the second switching air passage is provided with a second mounting opening, and either the second control valve or the second sealing element is installed into the second mounting opening.

[0015] Optionally, when the second control valve is installed in the second switching airway, the second control valve passes through the second mounting opening and is sealed and fixed.

[0016] When the second switching airway is equipped with the second blocking member, the second blocking member blocks the second installation opening, and the second switching airway becomes a passage.

[0017] Optionally, the second sealing element includes a second sealing body and a third sealing ring. The third sealing ring is sleeved on the second sealing body, the second sealing body blocks the second mounting opening, and the third sealing ring abuts against the inner wall of the second mounting opening and the second sealing body.

[0018] Optionally, the surface of the main body is provided with an air compression inlet and an air compression outlet that are connected to the first switching air passage. The air compression inlet is used to connect to the input end of the air compression assembly, and the air compression outlet is used to connect to the output end of the air compression assembly.

[0019] Optionally, the surface of the main body is provided with an air inlet and an air outlet, and the multiple air passages include a first air passage and a second air passage;

[0020] One end of the first air passage is connected to the air inlet, and the other end is connected to both the first switching air passage and the air compression inlet;

[0021] One end of the second air passage is connected to the air outlet, and the other end is connected to the air compression outlet.

[0022] Optionally, the first airway is provided with a one-way valve, and the second airway is provided with a normally closed solenoid valve.

[0023] Optionally, the surface of the main body is provided with an air spring inlet and outlet assembly, and the multiple air passages include an air spring air passage assembly. The air spring inlet and outlet assembly is used to communicate with the air spring assembly, and the air spring inlet and outlet assembly is connected to both the first switching air passage and the second switching air passage through the air spring air passage assembly.

[0024] Optionally, the air spring inlet / outlet assembly includes multiple air spring inlets / outlets, each of which is used to communicate with the air spring assembly.

[0025] The air spring air duct assembly includes a main air spring air duct and multiple branch air spring air ducts. The multiple branch air spring air ducts are respectively connected to the first switching air duct and the second switching air duct through the main air spring air duct. The ends of the multiple branch air spring air ducts away from the main air spring air duct are respectively connected to the multiple air spring inlets and outlets.

[0026] Optionally, a third control valve is provided on the air spring support passage to control the opening and closing of the air spring support passage.

[0027] Optionally, the surface of the main body is provided with an air inlet / outlet for connecting the air storage tank;

[0028] The multiple air passages include a third air passage, one end of which is connected to the air inlet / outlet of the gas storage tank, and the other end is connected to the second switching air passage.

[0029] Optionally, a fourth control valve is provided on the third air passage for controlling the opening and closing of the third air passage.

[0030] Optionally, the multiple airway pathways may further include a fourth airway, one end of which is connected to the second airway, and the other end of which is connected to both the third airway and the second switching airway.

[0031] Optionally, the multiple airway passages may further include a fifth airway, one end of which is connected to the first switching airway and the other end of which is connected to the third airway. The fifth airway is provided with a fifth control valve for controlling the opening and closing of the fifth airway.

[0032] Optionally, when the gas distribution assembly is in a closed-loop mode, the gas distribution assembly includes a first control mode and a second control mode. When the gas distribution assembly is in the first control mode or the second control mode, the second control valve, the third control valve, and the fourth control valve are all in the open state, and the first control valve and the fifth control valve are all in the closed state. The gas tank inlet and outlet are sequentially connected to the third gas passage, the second switching gas passage, the air spring gas passage group, and the air spring inlet and outlet group.

[0033] Optionally, when the air distribution assembly is in a closed-loop mode, the air distribution assembly includes a third control mode. When the air distribution assembly is in the third control mode, the second control valve, the third control valve, and the fifth control valve are all in the open state, and the first control valve and the fourth control valve are all in the closed state. The air inlet and outlet of the air tank are sequentially connected to the third air passage, the fifth air passage, the air compression assembly, the fourth air passage, the second switching air passage, the air spring air passage group, and the air spring inlet and outlet group.

[0034] Optionally, when the air distribution assembly is in a closed-loop mode, the air distribution assembly includes a fourth control mode. When the air distribution assembly is in the fourth control mode, the first control valve, the third control valve, and the fourth control valve are all in the open state, and the second control valve and the fifth control valve are all in the closed state. The air spring inlet and outlet group is sequentially connected to the air spring air passage group, the first switching air passage, the air compression assembly, the fourth air passage, the third air passage, and the air tank inlet and outlet.

[0035] Optionally, when the gas distribution assembly is in an open-circuit mode, the gas distribution assembly includes a fifth control mode. When the gas distribution assembly is in the fifth control mode, the third control valve and the fourth control valve are in an open state, the fifth control valve is in a closed state, and the gas tank inlet and outlet are sequentially connected to the third gas passage, the second switching gas passage, the air spring gas passage group, and the air spring inlet and outlet group.

[0036] Optionally, when the gas distribution assembly is in the open passage mode, the gas distribution assembly includes an open gas tank exhaust mode. When the gas distribution assembly is in the open gas tank exhaust mode, the normally closed solenoid valve and the fourth control valve are in the open state, the third control valve and the fifth control valve are in the closed state, and the gas tank inlet and outlet are sequentially connected to the third gas passage, the fourth gas passage, the second gas passage and the air outlet.

[0037] Optionally, when the air distribution assembly is in an open-path mode, the air distribution assembly includes an open air spring exhaust mode. When the air distribution assembly is in the open air spring exhaust mode, the third control valve and the normally closed solenoid valve are both in the open state, the fourth control valve and the fifth control valve are in the closed state, and the air spring inlet and outlet group are sequentially connected to the air spring air passage group, the second switching air passage, the fourth air passage, the second air passage and the air outlet.

[0038] According to a second aspect of this application, an air suspension system is provided, comprising:

[0039] gas tank;

[0040] Air compression assembly;

[0041] Air spring assembly; and

[0042] As described in the first aspect, the air distribution assembly, the air tank, the air compression assembly, and the air spring assembly are all connected to the air distribution assembly.

[0043] According to a third aspect of this application, a vehicle is also provided, including an air distribution assembly as described in the first aspect or an air suspension system as described in the second aspect.

[0044] In the air distribution assembly of this application embodiment, by selectively providing one of a first control valve and a first sealing element on the first switching air passage, and selectively providing one of a second control valve and a second sealing element on the second switching air passage, the first and second switching air passages can achieve air passage connection required for both closed-loop and open-loop modes. This improves the versatility of the air distribution assembly, allowing it to be applied to both open and closed air suspension systems. Furthermore, it eliminates the need for redesigning the air distribution assembly when changing to different air suspension systems, thus reducing manufacturing costs and shortening the manufacturing time for different air suspension systems.

[0045] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0048] Figure 1 This is a schematic diagram of the gas distribution assembly provided in an exemplary embodiment of this disclosure;

[0049] Figure 2 This is a schematic diagram of the main body of the gas distribution assembly provided in an exemplary embodiment of this disclosure;

[0050] Figure 3 This is an internal cross-sectional view of the gas distribution assembly provided in the exemplary embodiment of this disclosure in a closed-loop mode;

[0051] Figure 4 This is an internal cross-sectional view of the gas distribution assembly provided in an exemplary embodiment of this disclosure in an open-path mode;

[0052] Figure 5 This is an internal cross-sectional view of the first sealing element in the gas distribution assembly provided in the exemplary embodiments of this disclosure;

[0053] Figure 6 This is an internal cross-sectional view of the second sealing element in the gas distribution assembly provided in the exemplary embodiment of this disclosure;

[0054] Figure 7 This is a schematic diagram of the gas distribution assembly provided in the exemplary embodiment of this disclosure in a closed-circuit mode.

[0055] Figure 8 This is a schematic diagram of the gas distribution assembly provided in an exemplary embodiment of this disclosure in an open-path mode.

[0056] Explanation of reference numerals in the attached figures:

[0057] 1. Air distribution assembly; 11. Main body; 111. Air compressor inlet; 112. Air compressor outlet; 113. Air input port; 114. Air output port; 115. Air spring inlet / outlet; 116. Air tank inlet / outlet; 117. Pressure sensor port; 118. Heat sink; 12. Air passageway; 121. First switching air passage; 1211. First mounting opening; 12111. First mounting sub-opening; 12112. Second mounting sub-opening; 122. Second switching air passage; 1221. Second mounting opening; 123. First air passage; 1231. One-way valve; 124. Second air passage; 1241. Normally closed valve Solenoid valve; 125, Third air passage; 1251, Fourth control valve; 126, Fourth air passage; 1261, Dryer; 127, Fifth air passage; 1271, Fifth control valve; 128, Air spring air passage assembly; 1281, Air spring main air passage; 1282, Air spring branch air passage; 12821, Third control valve; 13, First control valve; 14, First sealing element; 141, First sealing assembly; 1411, First sealing ring; 1412, Second sealing ring; 142, First sealing body; 15, Second control valve; 16, Second sealing element; 161, Second sealing body; 162, Third sealing ring; 17, Pressure sensor;

[0058] 2. Gas storage tank; 21. External inflation port of the gas storage tank;

[0059] 3. Air compression assembly; 31. Compressor; 32. Power limiting valve;

[0060] 4. Air spring assembly; 41. Air spring. Detailed Implementation

[0061] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0062] This application provides a gas distribution assembly 1, please refer to... Figure 3 , Figure 4 , Figure 7 as well as Figure 8 .

[0063] The air distribution assembly 1 can be applied to an air suspension system, and depending on whether the air suspension system has a closed or open air suspension structure, the air distribution assembly 1 has a closed-path mode and an open-path mode. In other words, whether the air suspension system adopts an open air suspension structure or an air suspension system adopts a closed air suspension structure, the air distribution assembly 1 provided in this embodiment can be used to distribute the airflow.

[0064] The air distribution assembly 1 includes a main body 11. The main body 11 contains multiple air passages 12, including a first switching air passage 121 and a second switching air passage 122. The two ends of the first switching air passage 121 are respectively connected to the air spring assembly 4 and the air compressor assembly 3 of the air suspension system. The two ends of the second switching air passage 122 are respectively connected to the air tank 2 and the air spring assembly 4 of the air suspension system. When both the first switching air passage 121 and the second switching air passage 122 are in a controllable switching state, gas exchange can occur between the air spring assembly 4 and the air tank 2, achieving internal air circulation within the air suspension system, i.e., realizing the closed-loop mode of the air distribution assembly 1. When the first switching air passage 121 is disconnected and the second switching air passage 122 is open, the airflow direction between the air spring assembly 4 and the air tank 2 can only be from the air tank 2 to the air spring assembly 4; air circulation is not possible, realizing the open-loop mode of the air distribution assembly 1.

[0065] Specifically, when the air distribution assembly 1 is in closed-loop mode, a first control valve 13 is provided on the first switching air passage 121 to control the opening and closing of the first switching air passage 121, and a second control valve 15 is provided on the second switching air passage 122 to control the opening and closing of the second switching air passage 122. By controlling the opening and closing of the first control valve 13 and the second control valve 15, air can be supplied from the air tank 2 to the air spring assembly 4, and air can be supplied from the air spring assembly 4 to the air tank 2, thus realizing air circulation.

[0066] When the air distribution assembly 1 is in open-circuit mode, a first blocking element 14 is provided on the first switching air passage 121 to disconnect the first switching air passage 121, that is, to disconnect the air passage from the air spring assembly 4 and the air passage from the air spring assembly 4 to the air tank 2, thus preventing air circulation. A second blocking element 16 is provided on the second switching air passage 122 to block the mounting position of the second control valve on the second switching air passage and to avoid the flow path of the second switching air passage 122, so that the second switching air passage is open and the air tank 2 can always output air to the air spring assembly 4.

[0067] The technical solution provided in this application selectively provides one of a first control valve 13 and a first sealing element 14 on the first switching air passage 121, and selectively provides one of a second control valve 15 and a second sealing element 16 on the second switching air passage 122. This allows the first switching air passage 121 and the second switching air passage 122 to achieve air passage connection required for both closed-loop and open-loop modes, thereby improving the versatility of the air distribution assembly 1. The air distribution assembly 1 can be applied to both open and closed air suspension systems without requiring redesign of the air distribution assembly 1 when changing to different air suspension systems. This helps reduce the manufacturing cost of the air distribution assembly 1 and shorten the manufacturing period for different air suspension systems.

[0068] In some embodiments, see Figure 3 and Figure 4 The inner wall of the first switching air passage 121 is provided with a first installation opening 1211. One of the first control valve 13 and the first sealing member 14 is selectively installed into the first installation opening 1211. The first installation opening 1211 can be one opening, two openings, or three openings, etc., without limitation, and the shape of the first installation opening 1211 can be circular, square, rhomboid, etc., also without limitation. The number and shape of the first installation openings 1211 are matched according to the structure of the first control valve 13 and the first sealing member 14, so that both the first sealing member 14 and the first control valve 13 can be fixed at the first installation opening 1211. To save on shape and structure design, in this embodiment, the structure of the first sealing member 14 is designed based on the structure of the first control valve 13, and the fixing method and position of the first sealing member 14 with the first installation opening 1211 are also designed with reference to the first control valve 13. Depending on the desired mode of the air distribution assembly 1, if the air distribution assembly 1 needs to meet the closed-loop mode, then a first control valve 13 is provided at the first mounting opening 1211 to facilitate the control of the opening and closing of the first switching air passage 121. If the air distribution assembly 1 needs to meet the open-loop mode, then a first sealing element 14 is provided at the first mounting opening 1211 to keep the first switching air passage 121 in the open state, preventing the air from the air spring assembly 4 from being discharged back to the air compression assembly 3 and then compressed back into the air tank 2.

[0069] Furthermore, the first mounting opening 1211 includes a first mounting sub-opening 12111 and a second mounting sub-opening 12112 disposed opposite to each other. The two mounting sub-openings are mainly provided to accommodate the structure of the first control valve 13, so that both ends of the first control valve 13 can be fixed at the two mounting sub-openings respectively.

[0070] When the first switching air passage 121 is equipped with the first control valve 13, the first control valve 13 passes through the first mounting sub-opening 12111 and the second mounting sub-opening 12112 and is sealed and fixed. At this time, the air distribution assembly 1 is in a closed-loop mode. It should be noted that the first control valve 13 is sealed and fixed to the inner walls of the first mounting sub-opening 12111 and the second mounting sub-opening 12112, mainly to prevent air leakage in the first switching air passage 121 at the two mounting sub-openings, which would affect the airflow effect.

[0071] When the first switching air passage 121 is equipped with the first sealing element 14, the first sealing element 14 passes through the first mounting sub-opening 12111 and the second mounting sub-opening 12112 and blocks the first switching air passage 121. At this time, the air distribution assembly 1 is in an open passage mode. The first sealing element 14 blocks the first switching air passage 121, preventing the air spring assembly 4 from discharging air towards the air compression assembly 3, which could then be used to replenish the air in the air tank 2, thereby ensuring that the air distribution assembly 1 is in an open passage mode.

[0072] Furthermore, please see Figure 4 and Figure 5 The first sealing element 14 includes a first sealing assembly 141 and a first sealing body 142. The first sealing body 142 passes through the first mounting opening 12111 and the second mounting opening 12112 and blocks the first switching air passage 121. At this time, at least a portion of the first sealing body 142 is located on the flow path of the first switching air passage 121, and the outline of the first sealing body 142 matches the air passage outline inside the first switching air passage 121, so that the first sealing body 142 can block the air flow of the first switching air passage 121. The first sealing body 142 can be made of a soft material with elastic properties, and the cross-sectional area of ​​the first sealing body 142 in the unstressed state is larger than the flow area of ​​the first switching air passage 121. When the first sealing body 142 is forcibly inserted into the first switching air passage 121, it is squeezed by the inner wall of the first switching air passage 121, so that the first sealing body 142 can eliminate gaps caused by production and assembly errors as much as possible, thereby improving the sealing performance. The first sealing assembly 141 abuts against the inner wall between the first sealing body 142 and the first mounting sub-opening 12111, and also abuts against the inner wall between the first sealing body 142 and the second mounting sub-opening 12112, which helps to improve the sealing performance between the first sealing body 142 and the two mounting sub-openings.

[0073] Furthermore, the first sealing assembly 141 includes a first sealing ring 1411 and a second sealing ring 1412. Both the first sealing ring 1411 and the second sealing ring 1412 are fitted onto the first sealing body 142. The first sealing ring 1411 abuts against the inner wall of the first mounting opening 12111 and the first sealing body 142, improving the sealing performance between the first sealing body 142 and the first mounting opening 12111. The second sealing ring 1412 abuts against the inner wall of the second mounting opening 12112 and the first sealing body 142, improving the sealing performance between the first sealing body 142 and the second mounting opening 12112.

[0074] In some embodiments, see Figure 3 and Figure 4 The inner wall of the second switching air passage 122 is provided with a second mounting opening 1221. The second control valve 15 and the second sealing member 16 are selectively installed into the second mounting opening 1221. The second mounting opening 1221 can be one opening, two openings, or three openings, etc., without limitation, and its shape can be circular, square, rhomboid, etc., also without limitation. The number and shape of the second mounting openings 1221 are matched according to the structure of the second control valve 15 and the second sealing member 16, so that both the second sealing member 16 and the second control valve 15 can be fixed at the second mounting opening 1221. To save on shape and structural design, in this embodiment, the structure of the second sealing member 16 is designed based on the structure of the second control valve 15, and the fixing method and position of the second sealing member 16 with the second mounting opening 1221 are also designed with reference to the second control valve 15. However, it should be noted that the second sealing element 16, in order to ensure that the second switching air passage 122 remains open, serves only to seal the second mounting opening 1221, preventing the second switching air passage 122 from communicating with the outside of the air passage through the second mounting opening 1221 and affecting airflow. In other words, the length of the second sealing element 16 will be shorter than the second control valve 15 to prevent excessive extension of the second sealing element 16 into the second switching air passage 122, thus blocking it. Depending on the mode required by the air distribution assembly 1, such as if the air distribution assembly 1 needs to meet the closed-loop mode, then the second control valve 15 is installed at the second mounting opening 1221 to facilitate the control of the opening and closing of the second switching air passage 122. If the air distribution assembly 1 needs to meet the open passage mode, then a second sealing element 16 is provided at the second installation opening 1221 so that the second switching air passage 122 is always in the conducting state, so as to meet the normal air supply from the air tank 2 to the air spring assembly 4.

[0075] Furthermore, when the second switching air passage 122 is equipped with a second control valve 15, the second control valve 15 passes through the second mounting opening 1221 and is sealed and fixed, preventing the second switching air passage 122 from communicating with the outside through the second mounting opening 1221. When the second switching air passage 122 is equipped with a second sealing member 16, the second sealing member 16 blocks the second mounting opening 1221, making the second switching air passage 122 a passage. This ensures that the second switching opening always remains open while preventing the second switching air passage 122 from communicating with the outside through the second mounting opening 1221, thus avoiding any impact on the airflow within the second switching passage.

[0076] Furthermore, please see Figure 4 and Figure 6 The second sealing element 16 includes a second sealing body 161 and a third sealing ring 162. The third sealing ring 162 is fitted onto the second sealing body 161, which seals the second mounting opening 1221, preventing the second switching air passage 122 from communicating with the outside through the second mounting opening 1221, without affecting the airflow within the second switching air passage 122. The third sealing ring 162 abuts against the inner wall of the second mounting opening 1221 and between the second sealing body 161, further improving the sealing effect between the second sealing body 161 and the second mounting opening 1221.

[0077] In some embodiments, see Figure 1 , Figure 2 , Figure 7 as well as Figure 8 The surface of the main body 11 is provided with an air compression inlet 111 and an air compression outlet 112, which are connected to the first switching air passage 121. The air compression inlet 111 is used to connect to the input end of the air compression assembly 3, so that the air compressed by the air compression assembly 3 can be discharged into the interior of the main body 11 through the air compression inlet 111, and distributed through multiple air passages 12 inside the main body 11. The specific distribution process will be described in detail in subsequent embodiments. The air compression outlet 112 is used to connect to the output end of the air compression assembly 3, so that the air that needs to be pressurized flowing in the air passages 12 of the main body 11 can flow into the air compression assembly 3, and the air is pressurized, and then discharged into the interior of the main body 11 through the air compression inlet 111 to realize the air circulation. This process is mainly applied to the closed-loop mode.

[0078] Furthermore, the surface of the main body 11 is provided with an air inlet 113 and an air outlet 114. Neither the air inlet 113 nor the air outlet 114 is connected to any equipment; they are directly connected to the external environment and are mainly used to absorb air from the external environment or to discharge air to the outside. Multiple air passages 12 include a first air passage 123 and a second air passage 124. One end of the first air passage 123 is connected to the air inlet 113, and the other end is connected to both the first switching air passage 121 and the air compression inlet 111. This allows air entering through the air inlet 113 to pass through the first air passage 123 to the first switching air passage 121, and then flow to the target location through the first switching air passage 121; alternatively, it can pass through the first air passage 123 to the air compression inlet 111, and then to the air compression assembly 3, where it is pressurized before flowing to the target location. One end of the second air passage 124 is connected to the air outlet 114 and is used to discharge air from the main body 11. The other end of the second air passage 124 is connected to the air compressor outlet 112, and is used to receive the air compressed from the air compressor assembly 3.

[0079] Furthermore, a one-way valve 1231 is provided on the first air passage 123 to ensure that the air at the first air passage 123 is not diverted, thereby ensuring that the air inlet 113 only allows air to enter and not exit. A normally closed solenoid valve 1241 is provided on the second air passage 124 to control the opening and closing of the second air passage 124, preventing air from being discharged from the air outlet 114 before completing its own task, thus causing energy waste or even preventing the air suspension function from being realized.

[0080] In some embodiments, see Figure 1 , Figure 2 , Figure 7 as well as Figure 8 The surface of the main body 11 is provided with an air spring inlet / outlet assembly. Multiple air passages 12 include an air spring air passage assembly 128. The air spring inlet / outlet assembly is used to communicate with the air spring assembly 4. The air spring inlet / outlet assembly is connected to both the first switching air passage 121 and the second switching air passage 122 via the air spring air passage assembly 128. The air spring assembly 4 can rise and fall by utilizing the air transported through the first switching air passage 121 and the second switching air passage 122. The first switching air passage 121 and the second switching air passage 122, in conjunction with other air passages 12, can achieve multiple air transport paths, which will be described in detail in subsequent embodiments.

[0081] Furthermore, the air spring inlet / outlet assembly includes multiple air spring inlets / outlets 115, each of which is connected to the air spring assembly 4. Each air spring inlet / outlet 115 is connected to an air spring 41, allowing the air spring 41 to receive air from the air spring inlet / outlet 115 and rise, and to expel air to the air spring inlet / outlet 115 and fall. The air spring duct assembly 128 includes a main air spring duct 1281 and multiple branch air spring ducts 1282. The branch air spring ducts 1282 are connected to the first switching duct 121 via the main air spring duct 1281, and are also connected to the second switching duct 122 via the main air spring duct 1281. The branch air spring ducts 1282 are connected in parallel and converge into the main air spring duct 1281. Multiple air spring branch air channels 1282 are connected at their ends away from the main air spring channel 1281 to multiple air spring inlet and outlet ports 115, so that the lifting and lowering of each air spring 41 can be controlled by an independent air spring branch air channel 1282, improving the flexibility of air distribution. When the air distribution assembly 1 is applied to the air suspension system, the setting of multiple branch air channels can also improve the flexibility of the air suspension system, enabling the air suspension system to adapt to various road conditions.

[0082] Furthermore, a third control valve 12821 is provided on the air spring support duct 1282 for controlling the opening and closing of the air spring support duct 1282. It should be noted that each air spring support duct 1282 is provided with a third control valve 12821, and each third control valve 12821 is independently controlled, that is, multiple air spring support ducts 1282 can be independently opened and closed, improving the flexibility of air distribution.

[0083] In some embodiments, see Figure 1 , Figure 2 , Figure 7 as well as Figure 8 The surface of the main body 11 is provided with an air tank inlet / outlet 116 for connecting the air tank 2, allowing the air tank 2 to be filled with air or discharged through the air tank inlet / outlet 116. Multiple air passages 12 include a third air passage 125. One end of the third air passage 125 is connected to the air tank inlet / outlet 116, allowing air to flow from the air tank 2 into the main body 11, and also allowing air to be filled from the main body 11 into the air tank 2. The other end of the third air passage 125 is connected to a second switching air passage 122, allowing the air tank 2 to connect to the air spring inlet / outlet 115, the air compressor inlet 111, and the air compressor outlet 112, etc. Whether these connections are made depends on the control valves on each air passage.

[0084] Furthermore, a fourth control valve 1251 is provided on the third air passage 125 to control the opening and closing of the third air passage 125.

[0085] In some embodiments, the multiple air passages 12 further include a fourth air passage 126, one end of which is connected to the second air passage 124, and the other end is connected to both the third air passage 125 and the second switching air passage 122, so that the increased air can be both filled into the air storage tank 2 and discharged into the air spring inlet and outlet assembly.

[0086] In some embodiments, see Figure 1 , Figure 2 , Figure 7 as well as Figure 8 The multiple air passages 12 also include a fifth air passage 127. One end of the fifth air passage 127 is connected to the first switching air passage 121, and the other end is connected to the third air passage 125. A fifth control valve 1271 is provided on the fifth air passage 127 to control the opening and closing of the fifth air passage 127. The air inlet / outlet 116 of the air tank can be directly connected to the first switching air passage 121 through the third air passage 125 and the fifth air passage 127, so that the air in the air tank 2 can directly enter the air spring inlet assembly, and then inflate the air spring assembly 4.

[0087] Furthermore, a dryer 1261 is provided on the fifth air passage 127 to dry the air and prevent moisture in the air from affecting the control valve and the air spring 41.

[0088] In some embodiments, see Figure 1 , Figure 2 , Figure 7 as well as Figure 8 The main body 11 has a pressure sensor port 117 on its surface, and the inner wall of the pressure sensor port 117 is threaded. A pressure sensor 17 is mounted on the main body 11 through the pressure sensor port 117. Specifically, the pressure sensor 17 is threadedly connected to the pressure sensor port 117. The monitoring end of the pressure sensor 17 is located inside the main air passage 1281 of the air spring, and is used to monitor the pressure of the air about to enter the air spring assembly 4. Based on the pressure magnitude, it determines the pressure of the air discharged from the air tank 2 and the air spring assembly 4, facilitating the adjustment of the opening and closing of subsequent control valves to pressurize the air at the appropriate time to inflate the air tank 2 or the air spring 41. This pressure sensor 17 mainly serves the closed-loop mode air distribution assembly 1, because the closed-loop mode air distribution assembly 1 needs to monitor the air pressure in real time to change the air circulation path.

[0089] It should be noted that the control valves described in any of the foregoing embodiments, including the first control valve 13, the second control valve 15, the third control valve 12821, the fourth control valve 1251, and the fifth control valve 1271, are all solenoid valves, which facilitates real-time control.

[0090] In some embodiments, the surface of the main body 11 is provided with multiple connectors, including an air output connector, an air input connector, an air tank inlet / outlet connector, an air compressor inlet connector, an air compressor outlet connector, multiple air spring inlet / outlet connectors, and a pressure sensor hole. One end of the air output connector is threaded to the air output hole, and the other end is connected to the outside air. One end of the air input connector is threaded to the air input port 113, and the other end is connected to the outside air. One end of the air tank inlet / outlet connector is threaded to the air tank inlet / outlet 116, and the other end is used to connect to the air tank 2. One end of the air compressor inlet connector is threaded to the air compressor inlet 111, and the other end is used to connect to the air compressor assembly 3. One end of the air compressor outlet connector is threaded to the air compressor outlet 112, and the other end is used to connect to the air compressor assembly 3. One end of each of the multiple air spring inlet / outlet connectors is threaded to the air spring inlet / outlet 115, and the other end is used to connect to the air spring. The pressure sensor hole is threaded to the pressure sensor 17.

[0091] In some embodiments, a heat sink 118 is provided on the side of the main body 11 away from the multiple connectors, which serves to dissipate heat for the air passage 12 in the air distribution assembly 1 and for the various control valves, check valves 1231, normally closed solenoid valves 1241 and other devices provided on the air passage 12.

[0092] In some embodiments, see Figure 1 , Figure 2 and Figure 7 When the gas distribution assembly 1 is in closed-loop mode, it includes a first control mode and a second control mode. When the gas distribution assembly 1 is in either the first or second control mode, the second control valve 15, the third control valve 12821, and the fourth control valve 1251 are all open, while the first control valve 13 and the fifth control valve 1271 are both closed. The gas tank inlet / outlet 116 is sequentially connected to the third air passage 125, the second switching air passage 122, the air spring air passage group 128, and the air spring inlet / outlet group. It should be noted that although the control valves controlled in the first and second control modes are on and off in the same way, the airflow direction in the gas passage 12 is different.

[0093] Specifically, when the air distribution assembly 1 is in the first control mode, the air pressure in the air tank 2 is higher than the air pressure of the air spring 41 in the air spring assembly 4. The air tank 2 normally inflates the air spring 41. Air flows out of the air tank 2, flows into the third flow channel through the air tank inlet / outlet 116, flows into the second switching air channel 122 through the third air channel 125, and then flows into the main air channel 1281 of the air spring. The main air channel 1281 distributes the air to each branch air channel 1282 of the air spring, and the air flows out of the air spring inlet / outlet 115 through the branch air channels 1282, finally inflating the air spring 41 to realize the raising and lowering of the air spring 41. When the air distribution assembly 1 is in the second control mode, the pressure in the air spring 41 is greater than the air pressure in the air tank 2, which is the process of the air spring 41 inflating the air tank 2. The air spring 41 in the air spring assembly 4 exhausts air and flows into the air spring branch air passage 1282 through the air spring inlet / outlet 115. Then, it flows into the air spring main air passage 1281 through the air spring branch air passage 1282. The air spring main air passage 1281 gathers the air from the multiple air spring branch air passages 1282 and flows into the second switching air passage 122. Then, it flows through the third air passage 125 and finally fills the air storage tank 2 through the air storage tank inlet / outlet 116.

[0094] It should be noted that the implementation of the second control mode based on the aforementioned first control mode is that the first control mode will proceed before the second control mode. Before the first control mode, the air compression assembly 3 needs to be connected to the air distribution assembly 1. The air compression assembly 3 draws in outside air through the air compression inlet 111 and the air inlet 113, compresses and pressurizes the air, and then discharges it into the fourth air passage 126 through the air compression outlet 112. In the fourth air passage 126, the air will be dried by the dryer 1261, and then pass through the third air passage 125 and the air tank inlet / outlet 116 to complete the inflation and pressurization of the air tank 2. Then the first control mode can be performed, that is, the process of the air tank 2 inflating the air spring assembly 4.

[0095] In some embodiments, see Figure 1 , Figure 2 and Figure 7When the air distribution assembly 1 is in closed-loop mode, it includes a third control mode. In this mode, the second control valve 15, the third control valve 12821, and the fifth control valve 1271 are all open, while the first control valve 13 and the fourth control valve 1251 are both closed. The air tank inlet / outlet 116 is sequentially connected to the third air passage 125, the fifth air passage 127, the air compressor assembly 3, the fourth air passage 126, the second switching air passage 122, the air spring air passage group 128, and the air spring inlet / outlet group. The third control mode is used when the air pressure in the air tank 2 is low and requires pressurization via the air compressor assembly 3. After pressurization, the pressurized air is used to inflate the air spring assembly 4. Specifically, the low-pressure air from the air tank 2 enters the third air passage 125 through the air tank inlet / outlet 116, then enters the fifth air passage 127 through the third air passage 125, and finally enters the compressed air assembly through the fifth air passage 127. The compressed air assembly pressurizes the air, and then inputs it into the fourth air passage 126 through the compressed air inlet 111. It then enters the second switching air passage 122 through the fourth air passage 126, and finally flows into the air spring assembly 4 through the air spring inlet / outlet assembly, thus inflating the air spring assembly 4.

[0096] In some embodiments, see Figure 1 , Figure 2 and Figure 7 When the air distribution assembly 1 is in closed-loop mode, it includes a fourth control mode. In this mode, the first control valve 13, the third control valve 12821, and the fourth control valve 1251 are all open, while the second control valve 15 and the fifth control valve 1271 are both closed. The air spring inlet / outlet assembly is sequentially connected to the air spring air passage assembly 128, the first switching air passage 121, the air compression assembly 3, the fourth air passage 126, the third air passage 125, and the air tank inlet / outlet 116. This fourth control mode is used when the air pressure in the air spring assembly 4 is low and the air tank 2 needs to be charged. Specifically, the air spring assembly 4 enters the air spring branch air passage 1282 through the air spring inlet / outlet group, then enters the air spring main air passage 1281 through the air spring branch air passage 1282, and then enters the air compression assembly 3 through the first switching air passage 121. The air compression assembly 3 pressurizes the air, and then the pressurized air is input into the third air passage 125 through the second air passage 124 and the fourth air passage 126. Then, it enters the air storage tank 2 through the third air passage 125 and the air storage tank inlet / outlet 116, completing the inflation of the air storage tank 2. It should be noted that when the air flows through the fourth air passage 126, it is also dried by the dryer 1261 to prevent the moisture in the air from affecting the control valves, etc.

[0097] In some embodiments, see Figure 1 , Figure 2 and Figure 7 When the air tank 2 needs to be vented, the air tank 2 is connected to the air tank inlet / outlet 116, and the fourth control valve 1251 and the normally closed solenoid valve 1241 are opened, allowing the air in the air tank 2 to be vented to the outside of the air distribution assembly 1 through the third air passage 125, the fourth air passage 126, the second air passage 124, and the air outlet 114. When the air spring assembly 4 needs to be vented, the third control valve 12821 is opened, and the air vented from the air spring assembly 4 flows through the air spring air passage group 128. The second control valve 15 is opened, allowing the air to flow from the air spring air passage group 128 through the second switching air passage 122, and then from the second switching air passage 122 through the fourth air passage 126. The normally closed solenoid valve 1241 is opened, and the air in the fourth air passage 126 flows through the second air passage 124, and then is vented from the air outlet 114 to the air distribution assembly 1.

[0098] In some embodiments, see Figure 1 , Figure 2 and Figure 8 When the gas distribution assembly 1 is in open-circuit mode, it includes a fifth control mode. In this mode, the third control valve 12821 and the fourth control valve 1251 are open, and the fifth control valve 1271 is closed. The gas tank inlet / outlet 116 is sequentially connected to the third air passage 125, the second switching air passage 122, the air spring air passage group 128, and the air spring inlet / outlet group. The fifth control mode is used when the gas pressure in the gas tank 2 is higher than the gas pressure in the air spring assembly 4, i.e., when the gas tank 2 normally charges the air spring assembly 4. It should be noted that before the fifth control mode is activated, the air compression assembly 3 needs to be connected to the air distribution assembly 1. The air compression assembly 3 draws in outside air through the air compression inlet 111 and the air input port 113, compresses and pressurizes the air, and then discharges it into the fourth air passage 126 through the air compression outlet 112. The air will be dried by the dryer 1261 in the fourth air passage 126, and then pass through the third air passage 125 and the air tank inlet and outlet port 116 to complete the inflation and pressurization of the air tank 2. In the fifth control mode, the specific air flow path is as follows: the air tank 2 inputs air into the third air passage 125 through the air tank inlet / outlet 116, and then flows from the third air passage 125 into the second switching air passage 122, which is always open. From the second switching air passage 122, it flows into the main air passage 1281 of the air spring, and then is distributed to multiple air spring branch air passages 1282 through the main air passage 1281. Then, the air flows out from the air spring branch air passages 1282 into the air spring 41, completing the inflation of the air spring 41.

[0099] In some embodiments, see Figure 1 , Figure 2 and Figure 8 When the gas distribution assembly 1 is in the open-path mode, it includes an open-type gas tank exhaust mode. In this mode, the normally closed solenoid valve 1241 and the fourth control valve 1251 are open, while the third control valve 12821 and the fifth control valve 1271 are closed. The gas tank inlet / outlet 116 is sequentially connected to the third air passage 125, the fourth air passage 126, the second air passage 124, and the air outlet 114. The open-type gas tank exhaust mode is used for exhausting gas tank 2. The specific air flow is as follows: air from gas tank 2 is input to the third air passage 125 through the gas tank inlet / outlet 116, then flows into the fourth air passage 126 via the third air passage 125, then into the second air passage 124, and finally exits the gas distribution assembly 1 from the air outlet 114.

[0100] In some embodiments, see Figure 1 , Figure 2 and Figure 8 When the air distribution assembly 1 is in the open-path mode, it includes an open air spring exhaust mode. In this mode, the third control valve 12821 and the normally closed solenoid valve 1241 are both open, while the fourth control valve 1251 and the fifth control valve 1271 are closed. The air spring inlet / outlet assembly is sequentially connected to the air spring air passage assembly 128, the second switching air passage 122, the fourth air passage 126, the second air passage 124, and the air outlet 114. The open air spring exhaust mode is used for air spring exhaust. The specific airflow direction is as follows: the air of the air spring assembly 4 enters the air spring branch air passage 1282 through the air spring inlet / outlet 115, and then enters the air spring main air passage 1281 through the air spring branch air passage 1282. The air flows from the air spring main air passage 1281 through the second switching air passage 122, the fourth air passage 126 and the second air passage 124 in sequence, and finally exits the air distribution assembly 1 through the air outlet 114.

[0101] In summary, as can be seen from the above embodiments, one of the first control valve 13 and the first sealing element 14 can be selectively provided on the first switching air passage 121, and one of the second control valve 15 and the second sealing element 16 can be selectively provided on the second switching air passage 122. This allows the first switching air passage 121 and the second switching air passage 122 to achieve air passage connection required for both closed-loop and open-loop modes, thereby improving the versatility of the air distribution assembly 1. The air distribution assembly 1 can be applied to both open and closed air suspension systems without requiring redesign of the air distribution assembly 1 due to the replacement of different air suspension systems. This helps to reduce the manufacturing cost of the air distribution assembly 1 and shorten the manufacturing period of different air suspension systems.

[0102] According to the second aspect disclosed in this application, please refer to Figure 7 and Figure 8 An air suspension system is provided, comprising an air tank 2, an air compressor assembly 3, an air spring assembly 4, and an air distribution assembly 1 as described in any of the preceding embodiments. The air tank 2, air compressor assembly 3, and air spring assembly 4 are all connected to the air distribution assembly 1. The airflow path is controlled through the cooperation of air passages and control valves within the air distribution assembly 1, thereby enabling various modes of the air suspension system. Since this air suspension system possesses all the structures and beneficial effects of the aforementioned air distribution assembly 1, further details are omitted here.

[0103] It should be noted that the air compressor assembly 3 is a compressor 31 with multi-stage compression cylinders, which is existing technology, and the specific structure of the compressor 31 will not be described in detail here. A power limiting valve 32 can also be installed on the compressor 31 to adapt to the current operating conditions of the air suspension system and avoid power waste. In addition, the air tank 2 is provided with an external air inlet 21, so that the air tank 2 can be inflated directly by connecting to an external device without relying on the air compressor assembly 3. The air spring assembly 4 includes multiple air springs 41, each air spring 41 connected to an air spring inlet / outlet 115. When the air suspension system is applied to a vehicle, the number of air springs 41 is set to four, corresponding to the four tires of the vehicle, that is, one air spring 41 is placed close to one tire, so that the air suspension system can automatically adjust the suspension height and stiffness according to vehicle speed, road conditions, and vehicle load, thereby effectively absorbing the impact of uneven road surfaces, reducing vehicle vibration, and providing a smoother ride.

[0104] According to the third aspect disclosed in this application, a vehicle is provided that includes the air distribution assembly 1 described in any of the foregoing embodiments or the air suspension system described in any of the foregoing embodiments. The vehicle has all the beneficial effects of the air distribution assembly 1 or the air suspension system described above, which will not be repeated here.

[0105] It is understood that the vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this disclosure does not make any specific restrictions.

[0106] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0107] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0108] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0109] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A gas distribution assembly, characterized in that, The gas distribution assembly (1) has a closed-loop mode and an open-loop mode, and the gas distribution assembly (1) includes: The main body (11) has multiple air passages (12) inside. The multiple air passages (12) include a first switching air passage (121) and a second switching air passage (122). The two ends of the first switching air passage (121) are respectively used to connect with the air spring assembly (4) and the air compression assembly (3) of the air suspension system. The two ends of the second switching air passage (122) are respectively used to connect with the air tank (2) of the air suspension system and the air spring assembly (4). When the gas distribution assembly (1) is in the closed-loop mode, a first control valve (13) is provided on the first switching gas passage (121) to control the opening and closing of the first switching gas passage (121), and a second control valve (15) is provided on each of the second switching gas passages (122) to control the opening and closing of the second switching gas passages (122). When the gas distribution assembly (1) is in the open passage mode, a first blocking member (14) is provided on the first switching gas passage (121) to disconnect the first switching gas passage (121), and a second blocking member (16) is provided on the second switching gas passage (122). The second blocking member blocks the installation position of the second control valve on the second switching gas passage and avoids the flow path of the second switching gas passage (122) so that the second switching gas passage is open.

2. The gas distribution assembly according to claim 1, characterized in that, The inner wall of the first switching air passage (121) is provided with a first installation opening (1211), and the first control valve (13) and the first sealing member (14) are selectively installed to the first installation opening (1211).

3. The gas distribution assembly according to claim 2, characterized in that, The first mounting opening (1211) includes a first mounting sub-opening (12111) and a second mounting sub-opening (12112) that are disposed opposite to each other. When the first switching air passage (121) is equipped with the first control valve (13), the first control valve (13) passes through the first mounting sub-opening (12111) and the second mounting sub-opening (12112) and is sealed and fixed. When the first switching airway (121) is equipped with the first blocking member (14), the first blocking member (14) passes through the first mounting sub-opening (12111) and the second mounting sub-opening (12112) and blocks the first switching airway (121).

4. The gas distribution assembly according to claim 3, characterized in that, The first sealing component (14) includes a first sealing assembly (141) and a first sealing body (142). The first sealing body (142) passes through the first mounting sub-opening (12111) and the second mounting sub-opening (12112) and blocks the first switching air passage (121). The first sealing assembly (141) abuts against the inner wall between the first sealing body (142) and the first mounting sub-opening (12111) and between the first sealing body (142) and the inner wall between the second mounting sub-opening (12112).

5. The gas distribution assembly according to claim 4, characterized in that, The first sealing assembly (141) includes a first sealing ring (1411) and a second sealing ring (1412). The first sealing ring (1411) and the second sealing ring (1412) are both sleeved on the first sealing body (142). The first sealing ring (1411) abuts against the inner wall of the first mounting sub-opening (12111) and the first sealing body (142). The second sealing ring (1412) abuts against the inner wall of the second mounting sub-opening (12112) and the first sealing body (142).

6. The gas distribution assembly according to claim 1, characterized in that, The inner wall of the second switching air passage (122) is provided with a second installation opening (1221), and the second control valve (15) and the second sealing member (16) are selectively installed to the second installation opening (1221).

7. The gas distribution assembly according to claim 6, characterized in that, When the second switching air passage (122) is equipped with the second control valve (15), the second control valve (15) passes through the second mounting opening (1221) and is sealed and fixed. When the second switching airway (122) is equipped with the second blocking member (16), the second blocking member (16) blocks the second installation opening (1221), and the second switching airway (122) becomes a passage.

8. The gas distribution assembly according to claim 7, characterized in that, The second sealing element (16) includes a second sealing body (161) and a third sealing ring (162). The third sealing ring (162) is sleeved on the second sealing body (161). The second sealing body (161) blocks the second mounting opening (1221). The third sealing ring (162) abuts against the inner wall of the second mounting opening (1221) and the second sealing body (161).

9. The gas distribution assembly according to any one of claims 1 to 8, characterized in that, The surface of the main body (11) is provided with an air compression inlet (111) and an air compression outlet (112) that are connected to the first switching air passage (121). The air compression inlet (111) is used to connect to the input end of the air compression assembly (3), and the air compression outlet (112) is used to connect to the output end of the air compression assembly (3).

10. The gas distribution assembly according to claim 9, characterized in that, The surface of the main body (11) is provided with an air inlet (113) and an air outlet (114), and the multiple air passages (12) include a first air passage (123) and a second air passage (124). One end of the first air passage (123) is connected to the air inlet (113), and the other end is connected to both the first switching air passage (121) and the air compression inlet (111); One end of the second air passage (124) is connected to the air outlet (114), and the other end is connected to the air compression outlet (112).

11. The gas distribution assembly according to claim 10, characterized in that, The first air passage (123) is provided with a one-way valve (1231), and the second air passage (124) is provided with a normally closed solenoid valve (1241).

12. The gas distribution assembly according to claim 11, characterized in that, The surface of the main body (11) is provided with an air spring inlet and outlet (115) group. Multiple air passages (12) include an air spring air passage group (128). The air spring inlet and outlet (115) group is used to communicate with the air spring assembly (4). The air spring inlet and outlet (115) group is connected to the first switching air passage (121) and the second switching air passage (122) through the air spring air passage group (128).

13. The gas distribution assembly according to claim 12, characterized in that, The air spring inlet / outlet (115) group includes multiple air spring inlet / outlet (115), and the multiple air spring inlet / outlet (115) are respectively used to communicate with the air spring assembly (4); The air spring air duct assembly (128) includes an air spring main air duct (1281) and multiple air spring branch air ducts (1282). The multiple air spring branch air ducts (1282) are respectively connected to the first switching air duct (121) and the second switching air duct (122) through the air spring main air duct (1281). The ends of the multiple air spring branch air ducts (1282) away from the air spring main air duct (1281) are respectively connected to the multiple air spring inlet and outlet ports (115).

14. The gas distribution assembly according to claim 13, characterized in that, The air spring branch air passage (1282) is provided with a third control valve (12821) for controlling the opening and closing of the air spring branch air passage (1282).

15. The gas distribution assembly according to claim 14, characterized in that, The surface of the main body (11) is provided with an air inlet and outlet (116) for connecting the air tank (2); The multiple air passages (12) include a third air passage (125), one end of which is connected to the air inlet / outlet (116) of the gas storage tank (2), and the other end is connected to the second switching air passage (122).

16. The gas distribution assembly according to claim 15, characterized in that, The third air passage (125) is provided with a fourth control valve (1251) for controlling the opening and closing of the third air passage (125).

17. The gas distribution assembly according to claim 16, characterized in that, The multiple airway pathways (12) also include a fourth airway (126), one end of which is connected to the second airway (124), and the other end is connected to both the third airway (125) and the second switching airway (122).

18. The gas distribution assembly according to claim 17, characterized in that, The multiple airway passages (12) also include a fifth airway (127), one end of which is connected to the first switching airway (121) and the other end is connected to the third airway (125). A fifth control valve (1271) is provided on the fifth airway (127) for controlling the opening and closing of the fifth airway (127).

19. The gas distribution assembly according to claim 18, characterized in that, When the gas distribution assembly (1) is in a closed-loop mode, the gas distribution assembly (1) includes a first control mode and a second control mode. When the gas distribution assembly (1) is in the first control mode or the second control mode, the second control valve (15), the third control valve (12821) and the fourth control valve (1251) are all in the open state, and the first control valve (13) and the fifth control valve (1271) are all in the closed state. The gas inlet and outlet (116) of the gas storage tank (2) are connected in sequence to the third gas passage (125), the second switching gas passage (122), the air spring gas passage group (128) and the air spring inlet and outlet (115) group.

20. The gas distribution assembly according to claim 18, characterized in that, When the gas distribution assembly (1) is in the closed-loop mode, the gas distribution assembly (1) includes a third control mode. When the gas distribution assembly (1) is in the third control mode, the second control valve (15), the third control valve (12821) and the fifth control valve (1271) are all in the open state, and the first control valve (13) and the fourth control valve (1251) are all in the closed state. The air inlet and outlet (116) of the air tank (2) are connected in sequence to the third air passage (125), the fifth air passage (127), the air compression assembly (3), the fourth air passage (126), the second switching air passage (122), the air spring air passage group (128) and the air spring inlet and outlet (115) group.

21. The gas distribution assembly according to claim 18, characterized in that, When the air distribution assembly (1) is in the closed-loop mode, the air distribution assembly (1) includes a fourth control mode. When the air distribution assembly (1) is in the fourth control mode, the first control valve (13), the third control valve (12821) and the fourth control valve (1251) are all in the open state, and the second control valve (15) and the fifth control valve (1271) are all in the closed state. The air spring inlet and outlet (115) group is connected in sequence to the air spring air passage group (128), the first switching air passage (121), the air compression assembly (3), the fourth air passage (126), the third air passage (125) and the air inlet and outlet (116) of the air tank (2).

22. The gas distribution assembly according to claim 18, characterized in that, When the gas distribution assembly (1) is in the open passage mode, the gas distribution assembly (1) includes a fifth control mode. When the gas distribution assembly (1) is in the fifth control mode, the third control valve (12821) and the fourth control valve (1251) are in the open state, the fifth control valve (1271) is in the closed state, and the gas tank (2) inlet and outlet (116) are connected in sequence to the third air passage (125), the second switching air passage (122), the air spring air passage group (128), and the air spring inlet and outlet (115) group.

23. The gas distribution assembly according to claim 18, characterized in that, When the gas distribution assembly (1) is in the open passage mode, the gas distribution assembly (1) includes the open gas tank (2) exhaust mode. When the gas distribution assembly (1) is in the open gas tank (2) exhaust mode, the normally closed solenoid valve (1241) 1241 and the fourth control valve (1251) are in the open state, the third control valve (12821) and the fifth control valve (1271) are in the closed state, and the gas tank (2) inlet and outlet (116) are connected to the third air passage (125), the fourth air passage (126), the second air passage (124) and the air outlet (114) in sequence.

24. The gas distribution assembly according to claim 18, characterized in that, When the air distribution assembly (1) is in the open passage mode, the air distribution assembly (1) includes an open air spring exhaust mode. When the air distribution assembly (1) is in the open air spring exhaust mode, the third control valve (12821) and the normally closed solenoid valve (1241) 1241 are both in the open state, the fourth control valve (1251) and the fifth control valve (1271) are in the closed state, and the air spring inlet and outlet (115) group is connected in sequence to the air spring air passage group (128), the second switching air passage (122), the fourth air passage (126), the second air passage (124) and the air outlet (114).

25. An air suspension system, characterized in that, include: Gas storage tank (2); Air compression assembly (3); Air spring assembly (4); as well as In the air distribution assembly as described in any one of claims 1 to 24, the air tank (2), the air compression assembly (3), and the air spring assembly (4) are all connected to the air distribution assembly (1).

26. A vehicle, characterized in that, Includes the air distribution assembly as described in any one of claims 1 to 24 or the air suspension system as described in claim 25.

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