An integrated air supply unit assembly for air suspension

Abstract

This utility model proposes an integrated air supply unit assembly for air suspension, relating to the technical field of vehicle air suspension systems. The air supply unit assembly is connected to the air spring and the air tank via air circuits. The air supply unit assembly includes: a motor unit, a valve plate unit, a drive connection unit, an air control unit, and a gas drying tank. The motor unit is located on one side of the valve plate unit, and the drive connection unit and the gas drying tank are located on the other side of the valve plate unit. The gas drying tank is bolted and fixed to the drive connection unit. The air control unit is located inside the valve plate unit and is connected to the gas drying tank via air circuits. The air control unit has a solenoid valve, which is electrically connected to the drive connection unit. The air control unit controls the reciprocating motion of gas between the air spring and the air tank. By integrating the air supply pump body and each control valve, the air supply pump body and each control valve are highly integrated. The gas pipeline is designed with an internal gas circulation mode, which improves gas utilization and reduces energy consumption.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle air suspension systems, specifically to an integrated air supply unit assembly for air suspension. Background Technology

[0002] Motor vehicle air suspension systems require an air supply unit to supply and deflate the air springs. Existing air supply units have some significant drawbacks:

[0003] Most existing air suspension air supply units use independent air pump assemblies and are equipped with individual control valves. The valve system uses five solenoid valves and one sensor for control, which occupies a large space, increases the number of parts in the entire air supply unit, and makes the air pump assembly itself complex, increasing the difficulty and cost of system assembly.

[0004] The air pump assembly is a piston pump. In order to achieve the high pressure required by the system, most of them adopt a two-stage piston supercharging method. During operation, it will generate large mechanical vibration and airflow impact, resulting in greater noise, affecting the comfort of the vehicle and reducing the passenger's driving experience.

[0005] The existing air suspension air supply unit requires connecting the air pump assembly and various control valves through pipelines, which not only increases the length and complexity of the pipelines, but may also lead to difficulties in pipeline layout. It needs to be reasonably arranged within the limited space of the vehicle, which increases the workload of design and installation. At the same time, the existing air supply unit uses a large bracket to fix the air pump assembly and various control valves to bear the weight of the air pump and valve system as well as the various forces during vehicle operation, which makes the bracket structure more complex and increases its weight.

[0006] In existing technology, the air pump supplies and stores air to the air reservoir. When the air suspension actuators need air, the air reservoir supplies the air. Therefore, the air reservoir needs to maintain high pressure gas at all times. When the actuators release gas, the gas is directly released into the atmosphere. The whole process greatly increases the vehicle's energy consumption.

[0007] Therefore, there is an urgent need to develop an integrated air supply unit assembly for air suspension to solve the above problems. Utility Model Content

[0008] This utility model is an integrated air supply unit assembly for air suspension. By integrating the air supply pump body and various control valves, and installing the air supply pump body components inside the valve plate unit, a high degree of integration of the air supply pump body and various control valves is achieved. By designing the gas pipeline to use an internal gas circulation mode, the gas utilization rate is improved, energy consumption is reduced, and the above-mentioned technical problems are effectively solved.

[0009] To achieve the above objectives, this utility model provides the following technical solution: an integrated air supply unit assembly for air suspension, wherein the air supply unit assembly is connected to the air spring and the air tank respectively. The air supply unit assembly includes: a motor unit, a valve plate unit, a drive connection unit, an air control unit, and a gas drying tank. The motor unit is located on one side of the valve plate unit, and the drive connection unit and the gas drying tank are located on the other side of the valve plate unit. The gas drying tank is bolted to the drive connection unit. The air control unit is partially located inside the valve plate unit and is connected to the gas drying tank. The air control unit has a solenoid valve, which is electrically connected to the drive connection unit. The air control unit controls the reciprocating motion of gas between the air spring and the air tank.

[0010] Preferably, a motor is bolted to the upper center of the valve plate unit, and the upper part of the valve plate unit is provided with an air spring connection interface, an air storage cylinder connection interface, an exhaust interface and an air inlet interface. The lower part of the valve plate unit is provided with a valve hole, and the valve plate unit is provided with threaded holes on both sides.

[0011] Preferably, the air control unit includes an air supply control valve, an air supply pump body, a solenoid valve, a one-way intake valve, a safety valve, a throttle valve, a one-way valve, and an air pressure and temperature sensor. The valve plate unit is limitedly connected to each component of the air control unit. The air supply pump body includes a connecting rod assembly, an eccentric cam assembly, and an exhaust one-way valve. The connecting rod assembly is equipped with a piston, which is a double piston placed horizontally opposite each other. The piston is jointed with the eccentric cam assembly. An exhaust one-way valve is provided on the top of the piston. The eccentric cam assembly is movably hinged to the motor unit. The air supply pump body is connected to an air spring connection interface through an air passage. The air supply pump body is also connected to an air storage cylinder connection interface through an air passage. An air pressure and temperature sensor is provided in the air passage on one side of the air spring connection interface.

[0012] Preferably, the piston is a multi-piston configuration, and the multi-piston configuration is arranged in a star-shaped pattern.

[0013] Preferably, the solenoid valve includes: a reversing valve, an exhaust valve, and a spring control valve. The reversing valves are respectively a first air exchange valve, a second air exchange valve, a third air exchange valve, and a fourth air exchange valve. The first air exchange valve is located in the air path between the check valve and the spring control valve. The second air exchange valve is located in the air path between the air supply pump body and the spring control valve. The third air exchange valve is located in the air path between the air supply pump body and the air storage cylinder assembly. The fourth air exchange valve is located in the air path between the check valve and the air storage cylinder. The exhaust valve is located in the air path between the air supply pump body and the drying tank. There are four sets of spring control valves connected side by side. A pressure and temperature sensor is provided on one side of each spring control valve. The tail end of each spring control valve is connected to the air spring air path.

[0014] Preferably, the drive connection unit includes a drive base and a drive connection interface. The drive connection interface includes a control coil and a connection harness. The drive base is bolted to the bottom of the valve plate unit. The drive base has mounting holes on its inner side. The drive connection interface is bolted to one side of the drive base. The drive connection unit is electrically connected to the motor unit, solenoid valve, throttle valve, and air pressure and temperature sensor.

[0015] Preferably, the air inlet is connected to the air circuit of the one-way air inlet valve, the one-way air inlet valve is connected to the air circuit of the air supply control valve, the air supply control valve is connected to the air circuit of the air supply pump body, safety valves are connected to both ends of the air supply pump body through air circuits, the motor unit is movably hinged to the air supply pump body, and the air supply pump body is connected to the air circuit of the drying tank.

[0016] Preferably, the one-way valve is connected to a throttle valve at both ends of its air passage.

[0017] Preferably, the drying tank is filled with an active desiccant.

[0018] Beneficial effects

[0019] This utility model provides an integrated air supply unit assembly for air suspension, which has the following advantages compared with the prior art:

[0020] This utility model integrates the air supply pump body with each solenoid valve. The air supply pump body is installed inside the valve plate, the motor unit is installed in the valve plate, and all the solenoid valves are also installed in the valve plate. This achieves a high degree of integration between the air supply pump body and the solenoid valves, resulting in a very small overall space occupation, which facilitates the layout and installation of the vehicle. The dryer, valve plate, and motor unit are arranged opposite each other, reducing the overall layout space and making the structure more compact.

[0021] This utility model adopts a dual-piston or multi-piston arrangement. Taking a dual-piston pump as an example, the two pistons are horizontally opposite each other and arranged in parallel, which can effectively reduce vibration during the movement. The multi-piston pump adopts a star-shaped arrangement.

[0022] The component of this utility model adopts a special connection method. One end of the air supply unit assembly is connected to the air spring part of the air suspension actuator, and the other end is connected to the air storage tank of the energy storage device. The air storage tank does not need to have a very high air pressure.

[0023] When the actuator requires gas, the gas source from the gas storage tank enters the gas supply unit assembly through the gas path layout of this utility model, and is then pumped into the air spring of the actuator via the gas supply pump. The gas in the gas storage tank at its original pressure is equivalent to having a certain base pressure, so it can reach the operating pressure without secondary pressurization. When the actuator needs to exhaust gas, the exhaust gas is controlled by the solenoid valves of the gas supply unit and returns to the gas storage tank, so that the gas is always circulating inside the system.

[0024] The product of this utility model patent is highly integrated, making its overall structure completely different from the previous traditional method of multiple assemblies. The high degree of component integration and small overall size effectively reduce costs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of one side of the structure of this utility model;

[0027] Figure 2 This is a rear view of the present invention;

[0028] Figure 3 This is a schematic diagram of the other side of the structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the valve plate unit structure of this utility model;

[0030] Figure 5 This is a cross-sectional view of the present invention;

[0031] Figure 6 This is a schematic diagram of the installation structure of the solenoid valve of this utility model;

[0032] Figure 7 This is a top view of the solenoid valve installation of this utility model;

[0033] Figure 8 This is a schematic diagram of the gas circuit operation principle of this utility model;

[0034] In the picture:

[0035] 1. Motor unit,

[0036] 2. Valve plate unit, 201. Air spring connection interface, 202. Air tank connection interface, 203. Exhaust interface, 204. Inlet interface, 205. Valve hole, 206. Threaded hole.

[0037] 3. Drive connection unit, 301 drive base, 302 drive connection interface

[0038] 4. Air control unit; 401. Air supply pump body; 4011. Connecting rod assembly; 4012. Eccentric cam assembly; 4013. Exhaust check valve.

[0039] 4021, Reversing valve; 40211, First air valve; 40212, Second air valve; 40213, Third air valve; 40214, Fourth air valve.

[0040] 4022, Exhaust valve,

[0041] 4023, Air spring control valve; 40231, First air spring control valve; 40232, Second air spring control valve; 40233, Third air spring control valve; 40234, Fourth air spring control valve.

[0042] 403. Safety valve; 404. One-way inlet valve; 405. Throttle valve; 406. Gas supply control valve; 407. Check valve; 408. Gas pressure and temperature sensor.

[0043] 5. Gas drying tank; 6. Air spring; 7. Gas storage tank. Detailed Implementation

[0044] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model. The technical solutions of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0045] Please see Figure 1-8 This utility model provides a technical solution:

[0046] An integrated air supply unit assembly for air suspension is disclosed. The air supply unit assembly is connected to the air spring 6 and the air tank 7 via air circuits. It includes: a motor unit 1, a valve plate unit 2, a drive connection unit 3, an air control unit 4, and a gas drying tank 5. The motor unit 1 is located on one side of the valve plate unit 2, and the drive connection unit 3 and the gas drying tank 5 are located on the other side of the valve plate unit 2. The gas drying tank 5 is bolted to the drive connection unit 3. The air control unit 4 is partially located inside the valve plate unit 2 and is connected to the gas drying tank 5 via air circuits. The air control unit 4 has a solenoid valve, which is electrically connected to the drive connection unit 3. The motor unit 1, valve plate unit 2, drive connection unit 3, air control unit 4, and gas drying tank 5 are tightly integrated together, achieving a high degree of integration of this device.

[0047] In some embodiments, a motor is bolted to the upper center of the valve plate unit 2. The upper part of the valve plate unit 2 is provided with an air spring connection interface 201, an air storage cylinder connection interface 202, an exhaust interface 203, and an air inlet interface 204. The air spring connection interface 201 is connected to the air spring 6, and the air storage cylinder connection interface 202 is connected to the air storage cylinder 7. The lower part of the valve plate unit 2 is provided with a valve hole 205 for limiting the movement of valve components such as solenoid valves. The valve plate unit 2 is provided with threaded holes 206 on both sides for limiting the movement of the air supply pump body 401.

[0048] In some embodiments, the air control unit 4 includes an air supply control valve 406, an air supply pump body 401, a solenoid valve, a one-way intake valve 404, a safety valve 403, a throttle valve 405, a one-way valve 407, and an air pressure and temperature sensor 408. The valve plate unit 2 is connected to each component of the air control unit 4 in a limiting manner. The air supply control valve 406 has an air filtration function. The air supply pump body 401 includes a connecting rod assembly 4011, an eccentric cam assembly 4012, and an exhaust one-way valve 407 4013. The connecting rod assembly 4011 is equipped with a piston, which is a double piston. The pistons are placed horizontally opposite each other and are connected to the eccentric cam assembly 4012. The piston top is equipped with an exhaust one-way valve 4074013, which is bolted to the valve plate unit 2 threaded hole 206. The eccentric cam assembly 4012 is movably hinged to the motor unit 1. The air supply pump body 401 is connected to the air spring connection interface 201 through the air passage. The air supply pump body 401 is connected to the air storage tank connection interface 202 through the air passage. An air pressure and temperature sensor 408 is provided in the air passage on one side of the air spring connection interface 201.

[0049] In some embodiments, the piston is a multi-piston arrangement. The present invention uses opposed double pistons or multi-pistons arranged in a star shape, which can effectively reduce vibration during piston movement.

[0050] In some embodiments, the solenoid valve includes: a reversing valve 4021, an exhaust valve 4022, and a spring control valve 4023. The reversing valve 4021 is respectively a first air exchange valve 40211, a second air exchange valve 40212, a third air exchange valve 40213, and a fourth air exchange valve 40214. The first air exchange valve 40211 is located in the air path between the check valve 407 and the spring control valve 4023. The second air exchange valve 40212 is located in the air path between the air supply pump body 401 and the spring control valve 4023. The third air exchange valve 40213 is located in the air path between the air supply pump body 401 and the air storage cylinder 7 assembly. The fourth air exchange valve 40214 is located in the air path between the check valve 407 and the air storage cylinder 7. The exhaust valve 4022 is located in the air path between the air supply pump body 401 and the drying tank. The air path is controlled by opening and closing the air exchange valves.

[0051] There are four sets of air spring control valves 4023, namely the first air spring control valve 40231, the second air spring control valve 40232, the third air spring control valve 40233 and the fourth air spring control valve 40234. The four sets of air spring control valves 4023 are connected in parallel. A pressure and temperature sensor 408 is provided on one side of the air spring control valve 4023. The tail end of the air spring control valve 4023 is connected to the air spring 6 air passage.

[0052] In some embodiments, the drive connection unit 3 includes a drive base 301 and a drive connection interface 302. The drive connection interface 302 includes a control coil and a connection harness. The drive base 301 is bolted and fixed below the valve plate unit 2. The drive base 301 has a mounting hole on its inner side. The mounting hole and the valve hole 205 in the valve plate unit 2 cooperate to limit the valve body such as the solenoid valve. The drive connection interface 302 is bolted and fixed to one side of the drive base 301. The drive connection unit 3 is electrically connected to the motor unit 1, the solenoid valve, the throttle valve 405, and the air pressure and temperature sensor 408. The vehicle system controls the opening and closing of electronic devices such as the motor unit 1, the solenoid valve, and the throttle valve 405 as needed. The air pressure and temperature sensor 408 monitors the temperature of the internal components of the air supply unit and the air pressure in the air path in real time.

[0053] In some embodiments, the air inlet 204 is connected to the air circuit of the one-way air inlet valve 404, the one-way air inlet valve 404 is connected to the air circuit of the air supply control valve 406, the air supply control valve 406 is connected to the air circuit of the air supply pump body 401, the motor unit 1 is movably hinged to the air supply pump body 401, and the air supply pump body 401 is connected to the air circuit of the drying tank.

[0054] In some embodiments, the one-way valve 407 is connected to a throttle valve 405 at both ends of the air passage. The operation of the air supply unit usually requires dynamic adjustment of the gas flow or stabilization of the local pressure according to the working conditions. The throttle valve 405 adjusts the gas flow by changing the flow cross-sectional area, thereby controlling the action speed of the air spring 6 and controlling the response speed of the vehicle chassis.

[0055] In some embodiments, the gas supply pump body 401 is connected to safety valves 403 at both ends via gas lines. During the circulation process of the gas in the closed gas supply unit, when the energy input is abnormal or the energy dissipation is insufficient, causing the pressure to exceed the design limit, the safety valve 403 opens to prevent the system from bursting or failing to seal due to high pressure. When the gas pressure in the system reaches the predetermined range, the safety valve 403 closes to keep the gas line system in a sealed state.

[0056] In some embodiments, the connection between each gas path and the device is sealed with a sealing ring or a sealing gasket to ensure the overall airtightness of the gas path of the device.

[0057] In some embodiments, the components of this utility model are connected via an air circuit. One end of the air supply unit assembly is connected to the air spring 6 of the air suspension actuator, and the other end is connected to the air storage tank 7 of the energy storage device. The air storage tank 7 does not require high air pressure. When the actuator needs gas, the air source of the air storage tank 7 enters the air supply unit assembly through a special valve system arrangement and is filled into the air spring 6 of the actuator through the air supply pump body 401. The gas in the air storage tank 7 has a certain basic pressure and can reach the operating pressure without secondary pressurization. When the actuator needs to exhaust gas, the exhaust gas is controlled by the valve system of the air supply unit and returns to the air storage tank 7, so that the gas is always circulating inside the system.

[0058] Example 1

[0059] This utility model's air supply unit controls the vehicle chassis lifting function. The motor unit 1 operates and opens the first reversing valve 40211, the third reversing valve 40213, the first air spring control valve 40231, and the second air spring control valve 40232 (or the third air spring control valve 40233 and the fourth air spring control valve 40234). Gas flows from the air reservoir 7 through the pipeline into the valve plate unit 2, then through the electric three-way reversing valve 4021 into the internal cavity, and is supplied by the air pump body 401. The gas is pressurized to a high pressure that meets the requirements for vehicle lifting. This high pressure gas is dried in a gas drying tank 5, passes through a one-way valve 407, and then through a first reversing valve 40211 to the first air spring control valve 40231, the second air spring control valve 40232 (or the third air spring control valve 40233, the fourth air spring control valve 40234), and enters the corresponding air spring 6 to meet the vehicle lifting function. During the above process, the air pressure and temperature can be monitored simultaneously.

[0060] Example 2

[0061] This utility model's air supply unit controls the vehicle chassis lowering function. The motor unit 1 operates and opens the second reversing valve 40212, the fourth reversing valve 40214, the first air spring control valve 40231, and the second air spring control valve 40232 (or the third air spring control valve 40233 and the fourth air spring control valve 40234). Gas enters the valve plate unit 2 through the pipeline from the air spring 6 assembly, passes through the second reversing valve 40212 and enters the internal cavity. The gas is pressurized by the air supply pump body 401, and the high-pressure gas is dried through the gas drying tank 5. After passing through the one-way valve 407 and the fourth reversing valve 40214, the gas enters the air storage tank 7 to meet the vehicle lowering function. During the above process, the air pressure and temperature can be monitored simultaneously.

[0062] Example 3

[0063] This utility model's air supply unit controls the vehicle's air storage tank 7 to store air. When the gas inside the entire air circuit system is insufficient, external gas needs to be supplemented. The motor unit 1 operates, opens the fourth reversing valve 40214, and closes the first reversing valve 40211 and the third reversing valve 40213, allowing gas to pass through the air supply control valve 406 and the one-way inlet valve 404. When the gas reaches the air supply pump body 401, the air supply pump body 401 pressurizes the gas. The pressurized gas is dried by the gas drying tank 5, and the pressurized gas is filled into the air storage tank 7 through the one-way valve 407 and the fourth reversing valve 40214.

[0064] Example 4

[0065] This utility model's gas supply unit controls the gas drying tank 5 to filter out water vapor, thereby regenerating the gas drying tank 5. The gas drying tank 5 is filled with an active desiccant. When the system detects that the humidity of the gas drying tank 5 is too high and regeneration of the gas drying tank 5 is required, the gas supply unit system opens the fourth reversing valve 40214 and the exhaust valve 4022. The high-pressure gas in the gas storage tank 7 enters the gas drying tank 5 after passing through the fourth reversing valve 40214 and the throttle valve 405, carrying out the water vapor in the drying tank with the gas and discharging it to the outside of the system through the exhaust valve 4022.

[0066] This utility model integrates the air supply pump body 401 and various control valves. The air supply pump body 401 is installed inside the valve plate unit 2, and the various valve systems are also installed in the valve plate unit 2. This achieves a high degree of integration between the air supply pump body 401 and the valve system, reducing production and operating costs. After integration, the overall space occupied is very small, which facilitates the layout and installation of the vehicle. The gas pipeline is designed with internal gas circulation, which improves gas utilization and reduces energy consumption.

[0067] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments. For those skilled in the art to which the present invention pertains, several simple deductions or substitutions can be made without departing from the present invention, and all such deductions or substitutions should be considered as falling within the scope of patent protection determined by the submitted claims.

Claims

1. An integrated air supply unit assembly for an air suspension, the air supply unit assembly being connected to air spring and air reservoir air circuits, respectively, characterized by: The gas supply unit assembly includes: a motor unit, a valve plate unit, a drive connection unit, a gas control unit, and a gas drying tank. The motor unit is located on one side of the valve plate unit, and the drive connection unit and the gas drying tank are located on the other side of the valve plate unit. The gas drying tank is bolted and fixed to the drive connection unit. The gas control unit is partially located inside the valve plate unit and is connected to the gas drying tank via a gas path. The gas control unit has a solenoid valve, which is electrically connected to the drive connection unit. The gas control unit controls the reciprocating motion of the gas between the air spring and the gas storage tank.

2. An integrated air supply unit assembly for an air suspension according to claim 1, characterized in that: A motor unit is bolted to the upper center of the valve plate unit. The valve plate unit is provided with an air spring connection interface, an air storage cylinder connection interface, an exhaust interface and an air inlet interface on the upper part. A valve hole is provided at the lower part of the valve plate unit. The valve plate unit is provided with threaded holes on both sides.

3. An integrated air supply unit assembly for an air suspension according to claim 2, characterized in that: The air control unit includes an air supply control valve, an air supply pump body, a solenoid valve, a one-way intake valve, a safety valve, a throttle valve, a check valve, and an air pressure and temperature sensor. The valve plate unit is limited and connected to each component of the air control unit. The air supply pump body includes a connecting rod assembly, an eccentric cam assembly, and an exhaust check valve. The connecting rod assembly is equipped with a piston, which is a double piston placed horizontally opposite each other. The piston is jointed with the eccentric cam assembly. An exhaust check valve is provided on the top of the piston. The eccentric cam assembly is movably hinged to the motor unit. The air supply pump body is connected to an air spring connection interface through an air passage. The air supply pump body is also connected to an air storage tank connection interface through an air passage. An air pressure and temperature sensor is provided in the air passage on one side of the air spring connection interface.

4. An integrated air supply unit assembly for an air suspension according to claim 3, characterized in that: The piston is a multi-piston configuration, and the multi-piston configuration is arranged in a star-shaped pattern.

5. An integrated air supply unit assembly for an air suspension according to claim 3, wherein: The solenoid valve includes: a reversing valve, an exhaust valve, and a spring control valve. The reversing valves are respectively a first air exchange valve, a second air exchange valve, a third air exchange valve, and a fourth air exchange valve. The first air exchange valve is located in the air path between the check valve and the spring control valve. The second air exchange valve is located in the air path between the air supply pump body and the spring control valve. The third air exchange valve is located in the air path between the air supply pump body and the air storage tank assembly. The fourth air exchange valve is located in the air path between the check valve and the air storage tank. The exhaust valve is located in the air path between the air supply pump body and the drying tank. The spring control valves are connected in parallel. A pressure and temperature sensor is provided on one side of each spring control valve. The tail end of each spring control valve is connected to the air spring air path.

6. An integrated air supply unit assembly for an air suspension according to claim 3, wherein: The drive connection unit includes a drive base and a drive connection interface. The drive connection interface includes a control coil and a connection harness. The drive base is bolted and fixed to the bottom of the valve plate unit. The drive base has mounting holes on its inner side. The drive connection interface is bolted and fixed to one side of the drive base. The drive connection unit is electrically connected to the motor unit, solenoid valve, throttle valve, and air pressure and temperature sensor.

7. An integrated air supply unit assembly for an air suspension according to claim 3, wherein: The air inlet is connected to the air circuit of the one-way air inlet valve, the one-way air inlet valve is connected to the air circuit of the air supply control valve, the air supply control valve is connected to the air circuit of the air supply pump body, safety valves are connected to both ends of the air supply pump body through air circuits, the motor unit is movably hinged to the air supply pump body, and the air supply pump body is connected to the air circuit of the drying tank.

8. An integrated air supply unit assembly for an air suspension according to claim 3, wherein: The one-way valve is connected with a throttle valve at both ends.

9. An integrated air supply unit assembly for an air suspension according to claim 3, wherein: The drying tank is filled with active desiccant, and the drying tank is backblown by the gas passing through the throttle valve to realize repeated use after dehumidification.

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