Air supply system, air suspension and vehicle

Abstract

The utility model relates to the technical field of air suspensions, in particular to an air supply system, an air suspension and a vehicle, the air supply system comprises a first integrated unit and a second integrated unit, the first integrated unit comprises an air dryer, a first interface and a second interface, the second integration unit comprises an air supply component, a third interface and a fourth interface, the second integration unit can be switched between a first state and a second state, in the first state, the third interface is communicated with the fourth interface, in the second state, the third interface is communicated with the first interface, and the fourth interface is communicated with the second interface; according to the air supply system provided by the embodiment of the utility model, the arrangement flexibility of the air supply system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air suspensions, in particular to an air supply system, an air suspension and a vehicle. Background Art

[0002] The air suspension adjusts the ground clearance of the vehicle by compressing and extending the air spring, providing good comfort for the vehicle under various road conditions. The air supply system is the main component of the air suspension. The air supply system compresses the air and fills it into the air spring. The air supply system provides the source power for the air suspension. The air supply system in the related art includes a compressor, an air dryer, a throttle check valve and other different valves and compressed air pipelines. The size of the air supply system is large, resulting in poor flexibility in the arrangement of the air supply system on the chassis. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the utility model proposes an air supply system to improve the arrangement flexibility of the air supply system.

[0004] The embodiment of the utility model also provides an air suspension.

[0005] The embodiment of the utility model also provides a vehicle.

[0006] The air supply system of an embodiment of the utility model includes: a first integrated unit, the first integrated unit includes an air dryer, a first interface and a second interface; a second integrated unit, the second integrated unit includes an air supply component, a third interface and a fourth interface, the second integrated unit can be switched between a first state and a second state, in the first state, the third interface is connected to the fourth interface, in the second state, the third interface is connected to the first interface, and the fourth interface is connected to the second interface, and the air supply component is used to supply air to the air spring.

[0007] The air supply system of the embodiment of the utility model improves the layout flexibility of the air supply system.

[0008] In some embodiments, the air supply system also includes a throttle check valve, which is integrated in the first integrated unit, or the throttle check valve is integrated in the second integrated unit, or the throttle check valve is independent of the first integrated unit and the second integrated unit and is connected to the first integrated unit and the second integrated unit respectively.

[0009] In some embodiments, the air supply component includes a compressor and a switching valve, the compressor has an air inlet end and an air outlet end, the switching valve includes a first switching valve, a second switching valve, a third switching valve and a fourth switching valve, the two ends of the first switching valve are respectively connected to the air outlet end and the air spring, the two ends of the second switching valve are respectively connected to the air inlet end and the air spring, the two ends of the third switching valve are respectively suitable for being connected to the air inlet end and the air storage unit, and the two ends of the fourth switching valve are respectively connected to the air outlet end and the air storage unit.

[0010] In some embodiments, the air supply component further includes a plurality of air valves, the number of the air springs is multiple, the plurality of air valves are connected to the plurality of air springs one-to-one, and each of the air valves is respectively connected to the first switching valve and the second switching valve.

[0011] In some embodiments, the air dryer includes: a cylinder having an outlet, and an air desiccant is placed in the cylinder; an elastic component, the elastic component is located in the cylinder, the elastic component includes an elastic gasket and an elastic component, the elastic gasket includes a first elastic gasket and a second elastic gasket, the first elastic gasket and the second elastic gasket are symmetrically arranged in the axial direction of the cylinder and are respectively arranged at both ends of the air desiccant, the second elastic gasket is arranged adjacent to the outlet, and the elastic component is connected to an end of the second elastic gasket away from the air desiccant.

[0012] In some embodiments, the air dryer also includes a shock absorbing component and a bracket, the shock absorbing component includes a shock absorbing member and a bushing, the shock absorbing member is sleeved on the bushing, one end of the bracket is connected to the cylinder, the other end of the bracket is connected to the shock absorbing member, and the bushing is suitable for being connected to a vehicle frame.

[0013] In some embodiments, the elastic member has a first side surface and a second side surface arranged opposite to each other in the thickness direction thereof, and the first side surface and the second side surface are both provided with a plurality of protrusions arranged at intervals along their circumferential direction, and the elastic gasket is provided with a first supporting portion, which abuts against the inner wall surface of the protrusion.

[0014] In some embodiments, the elastic member is provided with ventilation holes, and the ventilation holes include first ventilation holes and / or second ventilation holes, the first ventilation holes penetrate the elastic member along the thickness direction, and the second ventilation holes penetrate the elastic member along the radial direction.

[0015] The air suspension of the embodiment of the utility model comprises: an air supply system, which is the air supply system described in the above embodiment; an air storage unit, which is connected to the air supply component; and an air spring, which is connected to the air supply component.

[0016] The air suspension of the embodiment of the utility model improves the performance of the air suspension.

[0017] The vehicle of the embodiment of the utility model comprises the air suspension described in the above embodiment.

[0018] The vehicle of the embodiment of the utility model improves the performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of an air supply system according to an embodiment of the present utility model.

[0020] Figure 2 It is a schematic diagram of the second integrated unit of the embodiment of the utility model.

[0021] Figure 3 It is a schematic diagram of the second integrated unit of the embodiment of the utility model.

[0022] Figure 4 It is a principle diagram of another embodiment of the second integrated unit of the utility model embodiment.

[0023] Figure 5 Schematic diagram of an air dryer according to an embodiment of the present utility model.

[0024] Figure 6 It is a cross-sectional view of an air dryer according to an embodiment of the utility model.

[0025] Figure 7 It is a schematic diagram of an elastic gasket according to an embodiment of the utility model.

[0026] Figure 8 It is a schematic diagram of an elastic member according to an embodiment of the utility model.

[0027] Reference numerals:

[0028] Air spring 100, air storage unit 200,

[0029] The first integrated unit 1, the air dryer 11, the cylinder 111, the outlet 1111, the air desiccant 112, the elastic component 113, the elastic gasket 1131, the first elastic gasket 11311, the second elastic gasket 11312, the first support portion 11313, the second support portion 11314, the flow hole 11315, the elastic component 1132, the protrusion 11321, the first air hole 11322, the second air hole 11323, the shock absorbing component 114, the shock absorbing component 1141, the mounting groove 11411, the bushing 1142, the mounting hole 11421, the bracket 115, the connecting portion 1151, the end cover 116, the retaining ring 117, the sealing ring 118, the breathable felt 119, the first interface 12, the second interface 13,

[0030] Second integrated unit 2, air supply component 21, compressor 211, plunger pump 2111, motor 2112, first one-way valve 2113, second one-way valve 2114, switching valve 212, first switching valve 2121, second switching valve 2122, third switching valve 2123, fourth switching valve 2124, air valve 213, exhaust valve 214, power limiting valve 215, manual exhaust bolt 216, pressure sensor 217, air filter 218, third interface 22, fourth interface 23, valve block 24, valve group 25, electronic control unit 26, throttling check valve 3. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0032] The air supply system of the embodiment of the utility model includes a first integrated unit 1 and a second integrated unit 2. The first integrated unit 1 includes an air dryer 11, a first interface 12 and a second interface 13. The second integrated unit 2 includes an air supply component 21, a third interface 22 and a fourth interface 23. The second integrated unit 2 can be switched between a first state and a second state. In the first state, the third interface 22 is connected to the fourth interface 23. In the second state, the third interface 22 is connected to the first interface 12, and the fourth interface 23 is connected to the second interface 13. The air supply component 21 is used to supply air to the air spring 100.

[0033] Specifically, Figure 1 and Figure 2 As shown, the air dryer 11 is connected to the first interface 12 and the second interface 13 respectively, so that the air dryer 11 dries the gas entering through the first interface 12 and transmits the dried gas out of the first integrated unit 1 through the second interface 13 .

[0034] The air supply component 21 is connected with the third interface 22 and the fourth interface 23. In the first state, the third interface 22 is connected with the fourth interface 23, the air supply component 21 is not connected with the air dryer 11, and the gas in the air supply component 21 is transmitted to the fourth interface 23 through the third interface 22 and then transmitted back to the air supply component 21. In the second state, the third interface 22 is connected with the first interface 12, the fourth interface 23 is connected with the second interface 13, the air supply component 21 is connected with the air dryer 11, and the gas flowing out of the air supply component 21 flows into the air dryer 11 through the third interface 22 and the first interface 12, and the gas discharged after the air dryer 11 dries the gas is transmitted to the air supply component 21 through the second interface 13 and the fourth interface 23.

[0035] The air dryer 11 of this embodiment is arranged separately from the air supply component 21. The air dryer 11 and the air supply component 21 are two separate assemblies, which are separated by the first integrated unit 1 and the second integrated unit 2. When the first integrated unit 1 is needed, the first integrated unit 1 and the second integrated unit 2 are connected, and when the first integrated unit 1 is not needed, the first integrated unit 1 and the second integrated unit 2 are disconnected. By arranging the air dryer 11 externally, the size of the second integrated unit 2 can be reduced, which facilitates the arrangement of the second integrated unit 2 on the chassis and improves the layout flexibility of the air supply system.

[0036] In some embodiments, the air supply system also includes a throttle check valve 3, which is integrated in the first integrated unit 1, or the throttle check valve 3 is integrated in the second integrated unit 2, or the throttle check valve 3 is independent of the first integrated unit 1 and the second integrated unit 2, and is connected to the first integrated unit 1 and the second integrated unit 2, respectively.

[0037] Specifically, Figure 4 As shown, when the throttle check valve 3 is integrated in the first integrated unit 1, the gas dried by the air dryer 11 passes through the throttle check valve 3 and then flows to the second interface 13. When the first integrated unit 1 is connected to the second integrated unit 2, the gas flowing out of the air supply component 21 flows to the air dryer 11 through the third interface 22 and the first interface 12. The gas discharged after the air dryer 11 dries the gas first passes through the throttle check valve 3, and then is transmitted to the air supply component 21 through the second interface 13 and the fourth interface 23.

[0038] For example, the throttle check valve 3 is integrated into the first integrated unit 1 by press-fitting, and the throttle check valve 3 and the air dryer 11 do not need to be assembled, thereby reducing leakage points and improving safety.

[0039] like Figure 3 As shown, when the throttle check valve 3 is integrated in the second integrated unit 2, the gas dried by the air dryer 11 flows to the throttle check valve 3 of the second integrated unit 2 through the second interface 13 and the fourth interface 23. When the first integrated unit 1 is connected to the second integrated unit 2, the gas flowing out of the air supply component 21 flows into the air dryer 11 through the third interface 22 and the first interface 12, and the gas discharged after the air dryer 11 dries the gas is transmitted to the air supply component 21 through the second interface 13 and the fourth interface 23.

[0040] When the throttling check valve 3 is respectively connected to the first integrated unit 1 and the second integrated unit 2, the gas dried by the air dryer 11 flows to the throttling check valve 3 through the second interface 13, and then flows to the fourth interface 23 after passing through the throttling check valve 3 to be transmitted to the air supply component 21. The different setting positions of the throttling check valve 3 can improve the layout flexibility of the second integrated unit 2.

[0041] In some embodiments, the air supply component 21 includes a compressor 211 and a switching valve 212, the compressor 211 has an air inlet end and an air outlet end, the switching valve 212 includes a first switching valve 2121, a second switching valve 2122, a third switching valve 2123 and a fourth switching valve 2124, the two ends of the first switching valve 2121 are respectively connected to the air outlet end and the air spring 100, the two ends of the second switching valve 2122 are respectively connected to the air inlet end and the air spring 100, the two ends of the third switching valve 2123 are respectively suitable for being connected to the air inlet end and the air storage unit 200, and the two ends of the fourth switching valve 2124 are respectively connected to the air outlet end and the air storage unit 200.

[0042] Specifically, Figure 3 and Figure 4 As shown, the compressor 211 includes a plunger pump 2111 and a motor 2112, and the motor 2112 is connected to the plunger pump 2111 to drive the plunger pump 2111 to move. The compressor 211 also includes a one-way valve group 25, and the one-way valve group 25 includes a first one-way valve 2113 and a second one-way valve 2114. The first one-way valve 2113 is connected to the inlet of the plunger pump 2111, and the second one-way valve 2114 is connected to the outlet of the plunger pump 2111 to prevent the gas from flowing in reverse and ensure the normal one-way flow of the gas.

[0043] The third interface 22 and the fourth interface 23 are located between the air outlet of the compressor 211 and the fourth switching valve 2124. The air outlet of the compressor 211 is communicated with the third interface 22, and the fourth interface 23 is communicated with the first switching valve 2121 or the fourth switching valve 2124. When the third interface 22 is communicated with the first interface 12, and the second interface 13 is communicated with the fourth interface 23, the gas in the air supply component 21 is transmitted to the air dryer 11, and the gas after passing through the air dryer 11 is then transmitted to the air supply component 21.

[0044] One end of the first switching valve 2121 is connected to the second one-way valve 2114 at the outlet end of the compressor 211, and the other end of the first switching valve 2121 is connected to the air spring 100. When the first switching valve 2121 is opened, the first switching valve 2121 can fill the gas compressed by the compressor 211 into the air spring 100, and the air spring 100 rises after being inflated. One end of the second switching valve 2122 is connected to the air spring 100, and the other end of the second switching valve 2122 is connected to the first one-way valve 2113 at the inlet end of the compressor 211. When the second switching valve 2122 is opened, the second switching valve 2122 can transfer the gas in the air spring 100 to the compressor 211, and the height of the air spring 100 decreases after being deflated. One end of the third switching valve 2123 is connected to the gas storage unit 200, and the other end of the third switching valve 2123 is connected to the first one-way valve 2113 at the air inlet end of the compressor 211. When the third switching valve 2123 is opened, the third switching valve 2123 can transfer the gas in the gas storage unit 200 to the compressor 211 for compression. One end of the fourth switching valve 2124 is connected to the second one-way valve 2114 at the air outlet end of the compressor 211, and the other end of the fourth switching valve 2124 is connected to the gas storage unit 200. When the fourth switching valve 2124 is opened, the fourth switching valve 2124 can recycle the gas in the compressor 211 to the gas storage unit 200 for storage.

[0045] For example, the number of plunger pumps 2111 is two, three or four, the number of one-way valve groups 25 is also multiple, and the multiple plunger pumps 2111 are arranged in a one-to-one correspondence with the multiple one-way valve groups 25. That is, a first one-way valve 2113 and a second one-way valve 2114 are respectively provided at both ends of each plunger pump 2111. When the number of plunger pumps 2111 is two, the two plunger pumps 2111 are symmetrically arranged. When the number of plunger pumps 2111 is three, the three plunger pumps 2111 are arranged in a Y shape. When the number of plunger pumps 2111 is four, the four plunger pumps 2111 are arranged in a cross shape.

[0046] In some embodiments, the air supply component 21 also includes multiple air valves 213, the number of air springs 100 is multiple, the multiple air valves 213 are connected to the multiple air springs 100 one by one, and each air valve 213 is respectively connected to the first switching valve 2121 and the second switching valve 2122.

[0047] Specifically, Figure 3 and Figure 4As shown, an air spring 100 can be provided at each wheel of the vehicle in this embodiment, and accordingly, the number of air valves 213 is four, the number of air springs 100 is four, the four air valves 213 are arranged in one-to-one correspondence with the four air springs 100, each air valve 213 controls an air spring 100, and each air valve 213 is connected to the first switching valve 2121 and the second switching valve 2122, so that when at least one of the four air springs 100 needs to be inflated, the air valve 213 corresponding to the air spring 100 is opened, the first switching valve 2121 directly receives the gas transmitted by the compressor 211 and inflates the air spring 100 with the gas through the air valve 213, and when at least one of the four air springs 100 needs to be deflated, the air valve 213 corresponding to the air spring 100 is opened, and the gas released by the air spring 100 is transmitted to the second switching valve 2122 through the air valve 213.

[0048] Furthermore, the present embodiment facilitates adjusting the heights of multiple air springs 100 separately by adjusting the on-off states of the first switching valve 2121, the second switching valve 2122, the third switching valve 2123, and the fourth switching valve 2124, as well as the on-off states of multiple air valves 213, so that the adjustment of the multiple air springs 100 is independent of each other, thereby realizing inflation and deflation of different air springs 100.

[0049] Optionally, the air supply component 21 further includes an exhaust valve 214, a power limiting valve 215, a manual exhaust bolt 216, a pressure sensor 217 and an air filter 218. The pressure sensor 217 is arranged between the switching valve 212 and the air valve 213, and can be used to monitor the gas pressure and temperature inside the air supply component 21, the air spring 100, and the air storage unit 200 through different on-off modes of the switching valve 212 and the air valve 213. The manual exhaust bolt 216 is used to discharge the high-pressure gas inside the air supply component 21 under special working conditions. The power limiting valve 215 is used to prevent overpressure of the air supply system. The exhaust valve 214 is used to exhaust the gas inside the air supply system. The air filter 218 is used to filter the air entering the air supply component 21 from the outside.

[0050] For example, the pressure sensor 217 is a temperature and pressure sensor that can monitor temperature and pressure simultaneously.

[0051] For the convenience of description, the throttling check valve 3 integrated in the first integrated unit 1 is taken as an example for description. When the air supply component 21 receives the need to raise the height of the air spring 100, the air supply component 21 is in the air supply state, the first switching valve 2121 and the third switching valve 2123 are opened, the second switching valve 2122 and the fourth switching valve 2124 are closed, and the air valve 213 is partially or fully energized as needed. The gas in the air storage unit 200 flows to the first one-way valve 2113 at the inlet of the plunger pump 2111 through the third switching valve 2123, and the plunger pump 2111 is driven by the motor 2112 to transmit the gas to the second one-way valve 2114 at the outlet of the plunger pump 2111, and then passes through the air dryer 11 and the throttling check valve 3 of the first integrated unit 1 as needed, and is filled into the air spring 100 through the first switching valve 2121 and the air valve 213.

[0052] When the air supply component 21 receives a request to lower the height of the air spring 100, the air supply component 21 is in an exhaust state, the second switching valve 2122 and the fourth switching valve 2124 are opened, the first switching valve 2121 and the third switching valve 2123 are closed, and the air valve 213 is partially or fully energized as needed. The gas released by the air spring 100 enters the first one-way valve 2113 at the inlet of the plunger pump 2111 through the air valve 213 and the second switching valve 2122, and the plunger pump 2111 is driven by the motor 2112 to transmit the gas to the second one-way valve 2114 at the outlet of the plunger pump 2111, and then passes through the air dryer 11 and the throttling check valve 3 of the first integrated unit 1 as needed, and is transmitted to the air storage unit 200 through the fourth switching valve 2124.

[0053] When the air supply component 21 receives insufficient gas from the air storage unit 200, the air supply component 21 is in a gas replenishing state, the fourth switching valve 2124 is opened, the first switching valve 2121, the second switching valve 2122 and the third switching valve 2123 are closed, and the motor 2112 drives the plunger pump 2111 to move, sucking outside air into the air filter 218. After passing through the air filter 218, the air is passed through the air dryer 11 and the throttling check valve 3 of the first integrated unit 1 as needed, and then the gas is replenished into the air storage unit 200 through the fourth switching valve 2124.

[0054] When the air supply component 21 receives the moisture of the air desiccant 112 in the air dryer 11 and reaches saturation, the air supply component 21 is in a regeneration state, the fourth switching valve 2124 and the exhaust valve 214 are opened, the first switching valve 2121, the second switching valve 2122 and the third switching valve 2123 are closed, and the gas in the air storage unit 200 flows to the throttling check valve 3 of the first integrated unit 1 and the air dryer 11 through the fourth switching valve 2124, and then is discharged through the exhaust valve 214, taking away the moisture in the air desiccant 112. The air supply component 21 in this embodiment switches between the air supply state, the exhaust state, the air replenishment state and the regeneration state.

[0055] It can be understood that the throttling check valve 3 can achieve the effects of forward flow circulation and reverse gas throttling, and the throttling check valve 3 can cooperate with the air dryer 11 to achieve the regeneration of the air desiccant 112.

[0056] Optionally, the second integrated unit 2 further includes a valve block 24, a valve group 25 and an electronic control unit 26, the air supply component 21 is integrated on the valve block 24, the valve group 25 includes the first switching valve 2121, the second switching valve 2122, the third switching valve 2123, the fourth switching valve 2124, the air valve 213 and the exhaust valve 214 of the above embodiment, and the valve group 25 controls the on-off state through the electronic control unit 26 to switch the second integrated unit 2 between the air supply state, the exhaust state, the air replenishment state and the regeneration state. An air nozzle is provided on the valve block 24 to facilitate the connection of the air supply system with the air spring 100 and the air storage unit 200. The air nozzle is arranged on the same side as the motor 2112 to realize the reasonable use of the position of the valve block 24, and to facilitate subsequent assembly and maintenance.

[0057] For example, the valve block 24 is made of aluminum, which facilitates rapid dissipation of heat generated during the movement of the plunger pump 2111.

[0058] In some embodiments, the air dryer 11 includes a cylinder 111 and an elastic component 113. The cylinder 111 has an outlet 1111, and an air desiccant 112 is placed in the cylinder 111; the elastic component 113 is located in the cylinder 111, and the elastic component 113 includes an elastic gasket 1131 and an elastic member 1132, and the elastic gasket 1131 includes a first elastic gasket 11311 and a second elastic gasket 11312, and the first elastic gasket 11311 and the second elastic gasket 11312 are symmetrically arranged in the axial direction of the cylinder 111 and are respectively arranged at both ends of the air desiccant 112, and the second elastic gasket 11312 is arranged adjacent to the outlet 1111, and the elastic member 1132 is connected to an end of the second elastic gasket 11312 away from the air desiccant 112.

[0059] Specifically, Figure 5 and Figure 6As shown, the first elastic gasket 11311 is located at the upper end of the air desiccant 112, the second elastic gasket 11312 is located at the lower end of the air desiccant 112, the upper end of the elastic member 1132 is connected to the lower end of the second elastic gasket 11312, and the lower end of the elastic member 1132 abuts against the bottom wall surface of the cylinder 111. In this embodiment, the elastic member 1132 is arranged near the outlet 1111, which helps to reduce the noise during the gas flow process.

[0060] Optionally, the air dryer 11 further includes an end cover 116, a retaining ring 117 and a sealing ring 118, wherein the sealing ring 118 is located between the inner wall surface of the cylinder 111 and the outer wall surface of the end cover 116 to achieve a sealed connection between the end cover 116 and the upper end of the cylinder 111, and the retaining ring 117 is used to limit and fix the end cover 116. Alternatively, the end cover 116 and the cylinder 111 are integrally formed.

[0061] Optionally, the air dryer 11 further includes a breathable felt 119 , which is disposed on a side of the elastic gasket 1131 adjacent to the air desiccant 112 .

[0062] In some embodiments, the air dryer 11 also includes a shock absorbing component 114 and a bracket 115. The shock absorbing component 114 includes a shock absorbing member 1141 and a bushing 1142. The shock absorbing member 1141 is sleeved on the bushing 1142. One end of the bracket 115 is connected to the cylinder 111, and the other end of the bracket 115 is connected to the shock absorbing member 1141. The bushing 1142 is suitable for being connected to the vehicle frame.

[0063] Specifically, Figure 5 and Figure 6 As shown, the bracket 115 is connected to the cylinder 111 or the end cover 116, the shock absorber 1141 is provided with a mounting groove 11411 along its circumferential direction, the bracket 115 is provided with a connecting portion 1151 that matches the mounting groove 11411, and the connecting portion 1151 is inserted into the mounting groove 11411 to realize the connection between the shock absorber 1141 and the bracket 115. The shock absorber 1141 is sleeved on the bushing 1142, and the bushing 1142 is provided with a mounting hole 11421. The setting of the mounting hole 11421 facilitates the connection between the bushing 1142 and the vehicle frame. The setting of the shock absorber 114 in this embodiment can block the vibration of the air dryer 11 caused by air pulsation from being transmitted to the whole vehicle, thereby improving the comfort of the whole vehicle.

[0064] In some embodiments, the elastic member 1132 has a first side surface and a second side surface arranged opposite to each other in the thickness direction thereof, and the first side surface and the second side surface are both provided with a plurality of protrusions 11321 arranged at intervals along the circumferential direction thereof, and the elastic gasket 1131 is provided with a first support portion 11313, and the first support portion 11313 abuts against the inner wall surface of the protrusion 11321.

[0065] Specifically, Figure 7 and Figure 8 As shown, the elastic member 1132 has a first side surface and a second side surface in the up and down direction, and a groove is formed between two adjacent protrusions 11321. By abutting the first support portion 11313 on the elastic gasket 1131 with the inner wall surface of the protrusion 11321, the gas circulation effect can be improved while facilitating the adjustment of the stiffness of the elastic member 1132.

[0066] A flow hole 11315 is provided on the elastic gasket 1131 in the vertical direction to facilitate the flow of gas. The elastic gasket 1131 is also provided with a second support portion 11314. The first support portion 11313 and the second support portion 11314 both extend in the vertical direction, and the first support portion 11313 is connected to the first side surface, and the second support portion 11314 is connected to the second side surface. A flow space is formed between the first support portion 11313 of the elastic gasket 1131 located at the top and the end cover 116, and the first support portion 11313 of the elastic gasket 1131 located at the bottom cooperates with the elastic member 1132 to play a guiding and limiting role.

[0067] For example, the elastic member 1132 is a rubber-plastic elastic member 1132 or a spring, and the elastic member 1132 and the elastic gasket 1131 are integrally formed.

[0068] In some embodiments, the elastic member 1132 is provided with ventilation holes, including first ventilation holes 11322 and / or second ventilation holes 11323. The first ventilation holes 11322 penetrate the elastic member 1132 along its thickness direction, and the second ventilation holes 11323 penetrate the elastic member 1132 along its radial direction.

[0069] Specifically, Figure 8 As shown, the first air hole 11322 penetrates the elastic member 1132 in the up-down direction. The provision of the first air hole 11322 and / or the second air hole 11323 facilitates the flow of gas while improving the performance of the elastic member 1132.

[0070] The air suspension of the embodiment of the utility model comprises an air supply system, an air storage unit 200 and an air spring 100. The air supply system is the air supply system of the above embodiment. The air storage unit 200 is connected to the air supply component 21. The air spring 100 is connected to the air supply component 21.

[0071] Specifically, the air storage unit 200 is used to store high-pressure gas, and the air supply component 21 is used to adjust the height of the air spring 100. Since the air supply component 21 of this embodiment is arranged separately from the air dryer 11, the size of the second integrated unit 2 can be reduced, which facilitates the arrangement of the second integrated unit 2 on the chassis and improves the layout freedom of the air suspension.

[0072] The vehicle of the embodiment of the utility model comprises the air suspension of the above embodiment.

[0073] The vehicle of this embodiment may be a hybrid vehicle, a non-hybrid vehicle, an electric vehicle, a fuel cell vehicle or other types of vehicles. Since the vehicle of this embodiment has the air suspension of the above-mentioned embodiment, the performance of the vehicle may be improved.

[0074] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0078] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0079] It is understandable that the above embodiments are exemplary and cannot be construed as limiting the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An air supply system, characterized in that: include: a first integrated unit, the first integrated unit comprising an air dryer, a first interface, and a second interface; The second integrated unit includes an air supply component, a third interface and a fourth interface, the second integrated unit can be switched between a first state and a second state, in the first state, the third interface is connected to the fourth interface, in the second state, the third interface is connected to the first interface, and the fourth interface is connected to the second interface, the air supply component is used to supply air to the air spring.

2. The air supply system according to claim 1, characterized in that: It also includes a throttling check valve, which is integrated in the first integrated unit, or the throttling check valve is integrated in the second integrated unit, or the throttling check valve is independent of the first integrated unit and the second integrated unit and is connected to the first integrated unit and the second integrated unit respectively.

3. The air supply system according to claim 1, characterized in that: The air supply component includes a compressor and a switching valve, the compressor has an air inlet end and an air outlet end, the switching valve includes a first switching valve, a second switching valve, a third switching valve and a fourth switching valve, the two ends of the first switching valve are respectively connected to the air outlet end and the air spring, the two ends of the second switching valve are respectively connected to the air inlet end and the air spring, the two ends of the third switching valve are respectively suitable for being connected to the air inlet end and the air storage unit, and the two ends of the fourth switching valve are respectively connected to the air outlet end and the air storage unit.

4. The air supply system according to claim 3, characterized in that: The air supply component further includes a plurality of air valves. The number of the air springs is plural. The plurality of air valves are connected to the plurality of air springs in a one-to-one correspondence, and each of the air valves is connected to the first switching valve and the second switching valve respectively.

5. The air supply system according to claim 1, characterized in that: The air dryer comprises: A cylinder having an outlet and an air desiccant placed in the cylinder; An elastic component, wherein the elastic component is located in the cylinder, the elastic component comprises an elastic gasket and an elastic member, the elastic gasket comprises a first elastic gasket and a second elastic gasket, the first elastic gasket and the second elastic gasket are symmetrically arranged in the axial direction of the cylinder and are arranged at both ends of the air desiccant, the second elastic gasket is arranged adjacent to the outlet, and the elastic member is connected to an end of the second elastic gasket away from the air desiccant.

6. The air supply system according to claim 5, characterized in that The air dryer also includes a shock absorbing component and a bracket. The shock absorbing component includes a shock absorbing member and a bushing. The shock absorbing member is sleeved on the bushing. One end of the bracket is connected to the cylinder, and the other end of the bracket is connected to the shock absorbing member. The bushing is suitable for being connected to a vehicle frame.

7. The air supply system according to claim 5, characterized in that: The elastic member has a first side surface and a second side surface arranged opposite to each other in the thickness direction thereof, and the first side surface and the second side surface are both provided with a plurality of protrusions arranged at intervals along the circumferential direction thereof, and the elastic gasket is provided with a first supporting portion, which abuts against the inner wall surface of the protrusion.

8. The air supply system according to claim 7, characterized in that: The elastic member is provided with ventilation holes, which include first ventilation holes and / or second ventilation holes. The first ventilation holes penetrate the elastic member along the thickness direction thereof, and the second ventilation holes penetrate the elastic member along the radial direction thereof.

9. An air suspension, characterized in that: include: An air supply system, wherein the air supply system is the air supply system according to any one of claims 1 to 8; An air storage unit, the air storage unit being connected to the air supply component; An air spring is connected to the air supply component.

10. A vehicle, characterized in that: Comprising an air suspension according to claim 9.

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