Electronic control integrated automobile air suspension device

Abstract

The utility model belongs to the technical field of automobile air suspension systems, and particularly relates to an electric control integrated automobile air suspension device with high integration level, which comprises a valve seat, and a controller, an air compression pump, an air storage tank, an air spring and a drying tank which are arranged on the valve seat, the air inlet of the air compression pump is connected with the air inlet interface of the air compression pump; the compressed air outlet of the air compression pump is connected with the compressed air outlet interface of the air compression pump; the first air tap of the drying tank is connected with the first air tap connector of the drying tank, the second air tap of the drying tank is connected with the second air tap connector of the drying tank, and the third air tap of the drying tank is connected with the third air tap connector of the drying tank; a gas port of the gas storage tank is connected with the gas storage tank interface; and the air spring is connected with the air spring interface. And compared with scattered arrangement of all parts, the number of the parts is reduced, the system efficiency is further improved, and overall replacement and installation are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile air suspension systems, and in particular relates to an electronically controlled integrated automobile air suspension device. Background Art

[0002] With the advancement of automotive technology, the use of air suspension systems is becoming increasingly widespread. Existing air suspension systems consist of an electronic control unit (ECU), an air compressor pump, an air tank, air springs, a drying tank, and a switching valve. During operation, the ECU issues commands to control the air compressor pump and switching valve, inflating or deflating the air springs. Because air suspension systems have numerous components and their scattered layout requires considerable installation space. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an electronically controlled integrated automobile air suspension device with high integration.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an electronically controlled integrated automobile air suspension device, comprising a valve seat, and a controller, an air compression pump, an air storage tank, an air spring and a drying tank installed on the valve seat; the valve seat is provided with an air compression pump air inlet interface, an air compression pump compressed air outlet interface, an air storage tank interface, a drying tank second air nozzle interface, a drying tank third air nozzle interface, a drying tank first air nozzle interface and an air spring interface; the air compression pump air inlet is connected to the air compression pump air inlet interface, and the air compression pump compressed air outlet is connected to the air compression pump compressed air outlet interface; the first air nozzle of the drying tank is connected to the first air nozzle interface of the drying tank, the second air nozzle of the drying tank is connected to the second air nozzle interface of the drying tank, and the third air nozzle of the drying tank is connected to the third air nozzle interface of the drying tank; the air port of the air storage tank is connected to the air storage tank interface; and the air spring is connected to the air spring interface;

[0005] A valve seat flow channel is provided in the valve seat, and the valve seat flow channel includes a first flow channel, a second flow channel, a third flow channel, a fourth flow channel, a fifth flow channel, a sixth flow channel and a seventh flow channel;

[0006] The air inlet interface of the air compression pump is connected to the atmosphere through the sixth flow channel; the second air nozzle interface of the drying tank, the third air nozzle interface of the drying tank, and the compressed air outlet interface of the air compression pump are connected through the first flow channel; an exhaust valve is installed on the valve seat, and the exhaust valve is located on the first flow channel section between the second air nozzle interface of the drying tank and the third air nozzle interface of the drying tank, and the exhaust valve is connected to the atmosphere through the seventh flow channel.

[0007] The first gas nozzle interface of the drying tank is connected to the gas storage tank interface through the second flow channel, and a third switching valve for controlling the on-off of the second flow channel is installed on the valve seat;

[0008] The air spring interface is connected to the air inlet interface of the air compression pump through a third flow channel, and a first switching valve for controlling the on-off of the third flow channel is installed on the valve seat. The air tank interface is connected to the air inlet interface of the air compression pump through a fourth flow channel, and a second switching valve for controlling the on-off of the fourth flow channel is installed on the valve seat.

[0009] The first air nozzle interface of the drying tank is connected to the air spring interface through a fifth flow channel, and a fourth switching valve for controlling the opening and closing of the fifth flow channel is installed on the valve seat;

[0010] The air compression pump, the air spring, the first switching valve, the second switching valve, the third switching valve, the fourth switching valve and the exhaust valve are all electrically connected to the controller.

[0011] Furthermore, the air compression pump includes a motor and a piston body; the motor is mounted on the valve seat;

[0012] The valve seat is provided with an installation chamber, and the piston body is installed in the installation chamber; the output shaft of the motor is in transmission connection with the piston rod of the piston body; the compressed air outlet and the air inlet of the air compression pump are both provided on the piston cylinder of the piston body;

[0013] The motor is electrically connected to the controller.

[0014] Furthermore, a power limiting valve is installed on the valve seat, and the valve seat flow channel also includes an eighth flow channel. The air inlet interface of the air compression pump is connected to the first flow channel through the eighth flow channel. The connection between the first flow channel and the eighth flow channel is located between the exhaust valve and the second air nozzle interface of the drying tank. The power limiting valve is used to control the on-off of the eighth flow channel.

[0015] The power limiting valve is electrically connected to the controller.

[0016] Furthermore, a pressure and temperature sensor for detecting the pressure and temperature of the gas in the valve seat flow channel is installed on the valve seat, and the pressure and temperature sensor is connected to the valve seat flow channel.

[0017] Furthermore, the controller includes a protective shell and a control chip, the protective shell is connected to the valve seat, and the electric control chip is arranged in the protective shell;

[0018] The motor, the air spring, the first switching valve, the second switching valve, the third switching valve, the fourth switching valve, the exhaust valve and the power limiting valve are all electrically connected to the control chip.

[0019] Furthermore, it also includes a controller socket, which is arranged on the protective shell and adjacent to one end of the valve seat; the circuit board of the controller socket is electrically connected to the control chip.

[0020] Furthermore, the drying tank includes a shell, wherein a first installation space and a second installation space are provided in the shell; a first molecular sieve is provided in the first installation space, and a second molecular sieve is provided in the second installation space;

[0021] An air passage for connecting the first installation space and the second installation space is provided in the shell; a first air nozzle connected to the air passage is provided on the shell, and a throttle valve is installed at the first air nozzle; a second air nozzle connected to the first installation space and a third air nozzle connected to the second installation space are provided on the shell; the second air nozzle and the third air nozzle are both used to connect to the compressed air outlet of the air compressor pump; the first air nozzle, the second air nozzle and the third air nozzle are all located at the same end of the shell;

[0022] When dehumidifying compressed air, the second air nozzle and the third air nozzle serve as air inlet nozzles, and the first air nozzle serves as air outlet nozzles; when backflushing the first molecular sieve and the second molecular sieve to remove moisture, the second air nozzle and the third air nozzle serve as air outlet nozzles, and the first air nozzle serves as air inlet nozzle.

[0023] Furthermore, the throttle valve includes a mounting tube with two openings at both ends and connected to the first gas nozzle, wherein a first limit plate, a second limit plate and a sphere are arranged in the mounting tube; one end of the mounting tube is mounted in the first gas nozzle, and the other end is located outside the first gas nozzle;

[0024] The first limiting plate and the second limiting plate are arranged in pairs along the axial direction of the mounting tube, and the three limiting plates are coaxially arranged; the first limiting plate is located near one end of the mounting tube inside the first gas nozzle, and the second limiting plate is located near the other end of the mounting tube outside the first gas nozzle;

[0025] The first limiting plate is provided with a throttle hole and a first air hole, the first air hole is located in the middle of the first limiting plate, and the throttle hole is located on one side of the first air hole; the second limiting plate is provided with a second air hole deviated from its own center;

[0026] The sphere is installed between the first limiting plate and the second limiting plate, and the diameter of the sphere is smaller than the distance between the first limiting plate and the second limiting plate, and smaller than the inner diameter of the mounting tube; the sphere is used to block or open the first air hole on the first limiting plate.

[0027] Furthermore, a boss is provided in the middle of the second limiting plate, and the boss is located on a side of the second limiting plate adjacent to the first limiting plate; the second air hole is located on the outer side of the boss.

[0028] Furthermore, it also includes a first pressing plate and a first pressing spring arranged in the first installation space;

[0029] Two first pressing plates are provided, one of which is arranged adjacent to the second gas nozzle, and the other is away from the second gas nozzle; the first molecular sieve is located between the two first pressing plates; a first through hole communicating with the first installation space is provided on the first pressing plate; a first leg is provided on the first pressing plate, and the first leg is located between the back side of the first pressing plate away from the first molecular sieve and the inner wall of the housing; the first compression spring is located between the first pressing plate away from the second gas nozzle and the inner wall of the housing;

[0030] Also included is a second pressing plate and a second pressing spring located in the second installation space;

[0031] There are two second pressure plates, one of which is arranged adjacent to the third gas nozzle, and the other is away from the third gas nozzle; the second molecular sieve is located between the two second pressure plates; a second through hole connected to the second installation space is provided on the second pressure plate; a second support leg is provided on the second pressure plate, and the second support leg is located between the back side of the second pressure plate away from the second molecular sieve and the inner wall of the shell; the second clamping spring is located between the second pressure plate away from the third gas nozzle and the inner wall of the shell.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides an electronically controlled integrated automobile air suspension device with a high degree of integration. First, compared with the scattered arrangement of various components, the number of components is reduced, the system efficiency is further improved, and the overall replacement and installation are convenient. Second, the layout of the pipeline is completed inside the valve seat, which occupies a small space. Third, the external pipelines are greatly reduced, reducing costs. Fourth, the air flow direction is optimized to maximize the effective use of the first molecular sieve and the second molecular sieve, thereby improving the dehumidification effect. Fifth, in conjunction with the space of the air compression pump, the space is reasonably utilized to complete the structural design without significantly affecting the overall size, and the space occupancy is smaller. Sixth, when the drying performance of the first molecular sieve and the second molecular sieve is still poor after backblowing, the first molecular sieve and the second molecular sieve are replaced by opening the cover body, which is convenient for disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional view from one angle of the present invention (wherein the gas tank and the air spring are not shown);

[0034] Figure 2 It is a three-dimensional view of the present invention from another angle (wherein the gas storage tank and the air spring are not shown);

[0035] Figure 3It is a schematic diagram of the gas circuit system in the utility model;

[0036] Figure 4 This is a schematic diagram of gas flow when the gas tank is charged from the atmosphere under working condition 1;

[0037] Figure 5 This is the gas flow diagram for working condition 2, when the air spring is inflated from the atmosphere;

[0038] Figure 6 This is the schematic diagram of gas flow when the air spring is charged from the air tank under working condition three;

[0039] Figure 7 This is the schematic diagram of gas flow in working condition 4 when exhausting from the empty spring to the gas tank;

[0040] Figure 8 This is a schematic diagram of gas flow when exhausting from the gas storage tank to the atmosphere under working condition five;

[0041] Figure 9 This is the schematic diagram of gas flow when exhausting from the air spring to the atmosphere in working condition six;

[0042] Figure 10 This is the gas flow diagram for working condition seven, when the pressure in the system exceeds the set value;

[0043] Figure 11 This is a schematic diagram of the gas flow in the drying tank when dehumidifying the compressed air;

[0044] Figure 12 This is a schematic diagram of the gas flow in the drying tank when the first and second molecular sieves are backflushed to remove moisture;

[0045] Figure 13 It is a sectional view along the sectional line AA;

[0046] Figure 14 It is a cross-sectional view along the cutting line BB;

[0047] Figure 15 1 is a schematic diagram of the internal structure of the first tank;

[0048] Figure 16 1 is a schematic diagram of the internal structure of the second tank;

[0049] Figure 17 This is a schematic diagram of the gas flow of the throttle valve when dehumidifying the compressed air;

[0050] Figure 18 Schematic diagram of gas flow through the throttle valve when backflushing the first and second molecular sieves for dehumidification;

[0051] Reference numerals:

[0052] 1-valve seat;

[0053] 101- First air nozzle interface of drying tank; 102- Second air nozzle interface of drying tank; 103- Third air nozzle interface of drying tank; 104- Air storage tank interface; 105- First flow channel; 106- Second flow channel; 107- Third flow channel; 108- Fourth flow channel; 109- Fifth flow channel; 110- Exhaust valve; 111- First switching valve; 112- Second switching valve; 113- Third switching valve; 114- Fourth switching valve; 11 5 - Power limit valve; 116 - Pressure and temperature sensor; 117 - Left front air spring FL interface; 118 - Left front air spring solenoid valve; 119 - Right front air spring FR interface; 120 - Right front air spring solenoid valve; 121 - Left rear air spring RL interface; 122 - Left rear air spring solenoid valve; 123 - Right rear air spring RR interface; 124 - Right rear air spring solenoid valve; 125 - Sixth flow channel; 126 - Seventh flow channel; 127 - Eighth flow channel;

[0054] 2-air compression pump; 201-motor;

[0055] 3- Drying tank;

[0056] 301-first installation space; 302-first molecular sieve; 303-second installation space; 304-second molecular sieve; 305-first gas nozzle; 306-second gas nozzle; 307-third gas nozzle; 308-throttle valve; 309-installation cylinder; 310-first limit plate; 311-throttle hole; 312-first air hole; 313-second limit plate; 314-second air hole; 315-boss; 316-sphere; 317-first pressure plate; 318-second One leg; 319-first through hole; 320-first compression spring; 321-first breathable gasket; 322-second pressure plate; 323-second leg; 324-second through hole; 325-second compression spring; 326-second breathable gasket; 327-first tank body; 328-second tank body; 329-connecting plate; 330-groove; 331-gas pipe; 332-cover; 333-reinforcement plate; 334-first sealing ring; 335-second sealing ring;

[0057] 4-controller; 401-protective shell;

[0058] 5-controller socket;

[0059] 6-intake and exhaust components; 601-intake pipe; 602-exhaust pipe. DETAILED DESCRIPTION

[0060] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0061] An electronically controlled integrated automobile air suspension device includes a valve seat 1, and a controller 4, an air compression pump 2, an air storage tank, an air spring and a drying tank 3 installed on the valve seat 1; the valve seat 1 is provided with an air compression pump air inlet interface, an air compression pump compressed air outlet interface, an air storage tank interface 104, a second air nozzle interface 102 of the drying tank, a third air nozzle interface 103 of the drying tank, a first air nozzle interface 101 of the drying tank and an air spring interface; the air compression pump air inlet is connected to the air compression pump air inlet interface, and the air compression pump compressed air outlet is connected to the compressed air pump compressed air outlet interface; the first air nozzle 305 of the drying tank 3 is connected to the first air nozzle interface 101 of the drying tank, the second air nozzle 306 of the drying tank 3 is connected to the second air nozzle interface 102 of the drying tank, and the third air nozzle 307 of the drying tank 3 is connected to the third air nozzle interface 103 of the drying tank; the air outlet of the air storage tank is connected to the air storage tank interface 104; and the air spring is connected to the air spring interface.

[0062] The air spring interface is equipped with an air spring quick connector, which is used to attach the air spring to the valve seat 1. The air tank interface 104 is equipped with an air tank quick connector, and the air tank's air port is attached to the valve seat 1 via the air tank quick connector. The valve seat 1 is preferably a rectangular structure. Preferably, the controller 4 is located on one side of the valve seat 1, while the air compressor pump 2, drying tank 3, air tank, and air spring are all located on the other side of the valve seat 1.

[0063] The air spring interfaces are configured based on the number of air springs. When there are four air springs, they are the left front air spring, right front air spring, left rear air spring, and right rear air spring. These interfaces include the left front air spring FL interface 117, the right front air spring FR interface 119, the left rear air spring RL interface 121, and the right rear air spring RR interface 123. The left front air spring is controlled by the left front air spring solenoid valve 118, the right front air spring is controlled by the right front air spring solenoid valve 120, the left rear air spring is controlled by the left rear air spring solenoid valve 122, and the right rear air spring is controlled by the right rear air spring solenoid valve 124. The air tank interface 104, the second air nozzle interface 102 of the dry tank, the third air nozzle interface 103 of the dry tank, the first air nozzle interface 101 of the dry tank, the left front air spring FL interface 117, the right front air spring FR interface 119, the left rear air spring RL interface 121, and the right rear air spring RR interface 123 are located on the same side of the valve seat 1.

[0064] The valve seat 1 is provided with valve seat flow channels, including a first flow channel 105, a second flow channel 106, a third flow channel 107, a fourth flow channel 108, a fifth flow channel 109, a sixth flow channel 125, and a seventh flow channel 126. The valve seat flow channels can be formed by machining, casting, or other methods. The vertical cross-sections of the first flow channel 105, the second flow channel 106, the third flow channel 107, the fourth flow channel 108, the fifth flow channel 109, the sixth flow channel 125, and the seventh flow channel 126 are all circular in structure, with a diameter of 3 to 6 mm.

[0065] The air inlet interface of the air compression pump is connected to the atmosphere through the sixth flow channel 125; the second air nozzle interface 102 of the drying tank, the third air nozzle interface 103 of the drying tank and the compressed air outlet interface of the air compression pump are connected through the first flow channel 105; an exhaust valve 110 is installed on the valve seat 1, and the exhaust valve 110 is located on the pipe section of the first flow channel 105 between the second air nozzle interface 102 and the third air nozzle interface 103 of the drying tank. The exhaust valve 110 is connected to the atmosphere through the seventh flow channel 126.

[0066] The first gas nozzle interface 101 of the drying tank is connected to the gas storage tank interface 104 via the second flow channel 106 . A third switching valve 113 for controlling the on-off of the second flow channel 106 is installed on the valve seat 1 .

[0067] The air spring interface is connected to the air inlet interface of the air compression pump through the third flow channel 107, and the valve seat 1 is provided with a first switching valve 111 for controlling the on and off of the third flow channel 107. The air tank interface 104 is connected to the air inlet interface of the air compression pump through the fourth flow channel 108, and the valve seat 1 is provided with a second switching valve 112 for controlling the on and off of the fourth flow channel 108.

[0068] The first air nozzle interface 101 of the drying tank is connected to the air spring interface through a fifth flow channel 109 . A fourth switching valve 114 for controlling the opening and closing of the fifth flow channel 109 is installed on the valve seat 1 .

[0069] The air compression pump 2, air spring, first switching valve 111, second switching valve 112, third switching valve 113, fourth switching valve 114 and exhaust valve 110 are all electrically connected to the controller 4. The controller 4 controls the start and stop of the air compression pump 2, and controls the opening and closing of the first switching valve 111, second switching valve 112, third switching valve 113, fourth switching valve 114 and exhaust valve 110. The air spring is electrically connected to the controller 4, specifically the air spring solenoid valve is electrically connected to the controller 4. Specifically, the left front air spring solenoid valve 118, the right front air spring solenoid valve 120 and the left rear air spring solenoid valve 122 are all electrically connected to the controller 4. The controller 4 controls the opening and closing of the left front air spring solenoid valve 118, the right front air spring solenoid valve 120 and the left rear air spring solenoid valve 122.

[0070] Preferably, the valve seat 1 further includes an intake and exhaust assembly 6 mounted on the valve seat 1, the intake and exhaust assembly 6 including an intake pipe 601 and an exhaust pipe 602 disposed on one side of the intake pipe 601. The intake pipe 601 is connected to the sixth flow channel 125, and the exhaust pipe 602 is connected to the seventh flow channel 126.

[0071] Working condition 1: When filling the gas tank from the atmosphere, Figure 4As shown, the exhaust valve 110, first switching valve 111, second switching valve 112, and fourth switching valve 114 are closed, and the third switching valve 113 is opened, connecting the first flow channel 105 and the second flow channel 106. Air enters the air compressor 2 through the sixth flow channel 125 and the air inlet interface of the air compressor pump, where it is compressed. The compressed air then enters the first flow channel 105 through the compressed air outlet interface of the air compressor pump. It then enters the drying tank 3 through the second and third air nozzle interfaces 102 and 103 of the drying tank, respectively, for drying. The dried compressed air then enters the second flow channel 106 through the first air nozzle interface 101 of the drying tank, and then enters the air storage tank through the air storage tank interface 104. At this point, the second and third air nozzle interfaces 102 and 103 of the drying tank serve as air inlets, and the first air nozzle interface 101 of the drying tank serves as an air outlet.

[0072] Working condition 2: When the air spring is inflated from the atmosphere, Figure 5 As shown, the exhaust valve 110, first switching valve 111, second switching valve 112, and third switching valve 113 are closed, and the fourth switching valve 114 is opened, connecting the first flow channel 105 and the fifth flow channel 109. Air enters the air compressor 2 through the sixth flow channel 125 and the air inlet interface of the air compressor pump, where it is compressed. The compressed air then enters the first flow channel 105 through the compressed air outlet interface of the air compressor pump. It then enters the drying tank 3 through the second and third air nozzle interfaces 102 and 103 of the drying tank, respectively, for drying. The dried compressed air then enters the fifth flow channel 109 through the first air nozzle interface 101 of the drying tank, and then inflates the air spring that needs to be inflated through the corresponding air spring solenoid valve. At this point, the second and third air nozzle interfaces 102 and 103 of the drying tank serve as air inlets, while the first air nozzle interface 101 of the drying tank serves as an outlet.

[0073] The first inflation can be done by either inflating the air tank from the atmosphere or inflating the air spring from the atmosphere. When there is air leakage in the valve seat flow channel, gas can also be replenished from the atmosphere.

[0074] Working condition three, when the air is charged from the air tank to the empty spring, if Figure 6As shown, the exhaust valve 110, first switching valve 111, and third switching valve 113 are closed, and the second switching valve 112 and fourth switching valve 114 are opened, connecting the fourth flow channel 108, the first flow channel 105, and the fifth flow channel 109. Since the dry compressed air entering the air storage tank is partially depressurized, the dry compressed air in the air storage tank enters the air compressor 2 through the air storage tank interface 104, the fourth flow channel 108, and the air inlet interface of the air compressor pump in sequence. After being compressed by the air compressor 2, the secondary compressed air enters the first flow channel 105, then enters the drying tank 3 for drying through the second air nozzle interface 102 and the third air nozzle interface 103 of the drying tank, respectively. The secondary dried compressed air enters the fifth flow channel 109 through the first air nozzle interface 101 of the drying tank, and inflates the air spring that needs to be inflated through the corresponding air spring solenoid valve. At this time, the second air nozzle interface 102 and the third air nozzle interface 103 of the drying tank both serve as air inlets, and the first air nozzle interface 101 of the drying tank serves as an air outlet.

[0075] Working condition 4: when exhausting from the air spring to the air tank, if Figure 7 As shown, the exhaust valve 110, the second switching valve 112, and the fourth switching valve 114 are closed, and the first switching valve 111 and the third switching valve 113 are opened. The third flow channel 107, the first flow channel 105, and the second flow channel 106 are connected. The air spring solenoid valve of the air spring that needs to be exhausted is opened, and the air in the air spring is compressed by the air compressor 2 through the third flow channel 107 and the air inlet interface of the air compressor pump. The compressed air enters the first flow channel 105 through the compressed air outlet interface of the air compressor pump, and then enters the drying tank for drying through the second air nozzle interface 102 and the third air nozzle interface 103 of the drying tank. The dried compressed air enters the second flow channel 106 through the first air nozzle interface 101 of the drying tank, and then enters the air storage tank through the air storage tank interface 104. At this time, the second air nozzle interface 102 and the third air nozzle interface 103 of the drying tank both serve as air inlets, and the first air nozzle interface 101 of the drying tank serves as an air outlet.

[0076] Working condition 5: when exhausting from the gas tank to the atmosphere, if Figure 8As shown, the first switching valve 111, the second switching valve 112, and the fourth switching valve 114 are closed, and the third switching valve 113 and the exhaust valve 110 are opened, so that the second flow channel 106 and the first flow channel 105 are connected. The dry compressed air in the air storage tank enters the second flow channel 106 through the air storage tank interface 104, then enters the drying tank through the first gas nozzle interface 101 of the drying tank, and then enters the first flow channel 105 through the second gas nozzle interface 102 and the third gas nozzle interface 103 of the drying tank respectively to achieve backflushing. Finally, it is discharged into the atmosphere through the exhaust valve 110 and the seventh flow channel 126, removing moisture from the drying tank molecular sieve and regenerating the drying tank molecular sieve. At this time, the first gas nozzle interface 101 of the drying tank serves as the air inlet, and the second gas nozzle interface 102 and the third gas nozzle interface 103 of the drying tank both serve as the air outlet.

[0077] Working condition six, when exhausting from the air spring to the atmosphere, if Figure 9 As shown, the first switching valve 111, the second switching valve 112, and the third switching valve 113 are closed, and the fourth switching valve 114 and the exhaust valve 110 are opened, connecting the fifth flow channel 109 to the first flow channel 105. The air spring solenoid valve of the air spring that needs to be exhausted is opened, and the air in the air spring enters the fifth flow channel 109 through the air spring interface, then enters the drying tank 3 through the first air nozzle interface 101 of the drying tank, and then enters the first flow channel 105 through the second air nozzle interface 102 and the third air nozzle interface 103 of the drying tank respectively to achieve backflushing. Finally, it is discharged into the atmosphere through the exhaust valve 110 and the seventh flow channel 126, removing moisture from the drying tank molecular sieve and regenerating the drying tank molecular sieve. At this time, the first air nozzle interface 101 of the drying tank serves as the air inlet, and the second air nozzle interface 102 and the third air nozzle interface 103 of the drying tank both serve as the air outlet.

[0078] Among them, working conditions three and four are normal working conditions, that is, charging the empty spring from the air tank and exhausting the air from the empty spring to the air tank are normal working conditions.

[0079] Inflating the empty spring from the air tank has the following advantages: First, if the empty spring is inflated directly from the atmosphere each time, moisture will enter each time the air is inflated, which can easily cause the molecular sieve in the drying tank 3, that is, the desiccant, to fail quickly. When inflating the empty spring from the air tank, the gas is transferred internally, which can effectively prevent additional moisture from entering, thereby extending the service life of the molecular sieve in the drying tank 3. Second, due to the large pressure difference between the atmosphere and the air required in the empty spring, there is still a technical problem of slow inflation speed when inflating the empty spring directly from the atmosphere each time. After the first inflation from the atmosphere to the air tank is completed, or when the first inflation from the atmosphere to the empty spring and the exhaust from the empty spring to the air tank are completed, dry compressed air is pre-stored in the air tank. The dry compressed air in the air tank is compressed twice by the air compression pump 2, which can greatly shorten the operating time of the compressor, achieve rapid inflation, and reduce energy consumption.

[0080] Preferably, the air compression pump 2 includes a motor 201 and a piston body; the motor 201 is installed on the valve seat 1; an installation chamber is provided in the valve seat 1, and the piston body is installed in the installation chamber; the output shaft of the motor 201 is transmission-connected to the piston rod of the piston body; the compressed air outlet and the air inlet of the air compression pump are both provided on the piston cylinder of the piston body; the motor 201 is electrically connected to the controller 4.

[0081] Preferably, two piston bodies are provided, located on either side of the output shaft of motor 201. The output shaft of motor 201 is perpendicular to the piston rods in the two piston bodies, and the output shaft of motor 201 is transmission-connected to the piston rods in the two piston bodies via an eccentric mechanism. In other words, air compression pump 2 is a dual-piston pump, which is conventional technology.

[0082] Working condition seven, such as Figure 10 As shown, a power limiting valve 115 is mounted on the valve seat 1. The valve seat flow path also includes an eighth flow path 127. The air compressor pump air inlet interface and the first flow path 105 are connected via the eighth flow path 127. The connection between the first flow path 105 and the eighth flow path 127 is located between the exhaust valve 110 and the second air nozzle interface 102 of the drying tank. The power limiting valve 115 is used to control the on-off of the eighth flow path 127. The power limiting valve 115 is electrically connected to the controller 4. When the pressure in the system exceeds a set value, the controller 4 controls the power limiting valve 115 to open, and the gas in the valve seat flow path enters the air compressor pump 2 through the air compressor pump air inlet interface to relieve the system pressure.

[0083] Preferably, the valve seat 1 is mounted with a pressure and temperature sensor 116 for detecting the gas pressure and temperature in the valve seat flow channel. The pressure and temperature sensor 116 is connected to the valve seat flow channel. Furthermore, a display is preferably included, and both the pressure and temperature sensor 116 and the display are electrically connected to the control chip. The pressure and temperature sensor 116 transmits pressure and temperature information to the control chip, which then transmits the pressure and temperature information to the display for display.

[0084] Specifically, the power limiting valve 115 is a relief valve.

[0085] Specifically, the first switching valve 111 , the second switching valve 112 , the third switching valve 113 and the fourth switching valve 114 are all two-position, two-way normally closed solenoid valves.

[0086] Specifically, the controller 4 includes a protective housing 401 and a control chip. The protective housing 401 is connected to the valve seat 1, and the electrical control chip is disposed within the protective housing 401. The motor 201, the air spring, the first switching valve 111, the second switching valve 112, the third switching valve 113, the fourth switching valve 114, the exhaust valve 110, and the power limit valve 115 are all electrically connected to the control chip. Specifically, the protective housing 401 is connected to the valve seat 1 via screws.

[0087] The protective shell 401 can be a unitary structure. Preferably, the protective shell 401 comprises a box body with an opening at one end and a cover provided on the opening of the box body; the open end of the box body faces away from the valve seat 1, and the end of the box body away from its own opening is connected to the valve seat 1 by screws.

[0088] Preferably, the valve seat 1 further comprises a controller socket 5 , which is disposed on the protective housing 401 and adjacent to one end of the valve seat 1 . The circuit board of the controller socket 5 is electrically connected to the control chip. The controller socket 5 comprises a housing and a circuit board disposed therein; the housing of the controller socket 5 is provided with a socket. Specifically, the housing of the controller socket 5 is attached to the protective housing 401 by adhesive or screws.

[0089] Specifically, the drying tank 3 includes a shell, and a first installation space 301 and a second installation space 303 are provided in the shell; a first molecular sieve 302 is provided in the first installation space 301, and a second molecular sieve 304 is provided in the second installation space 303; an air passage for connecting the first installation space 301 and the second installation space 303 is provided in the shell; a first gas nozzle 305 connected to the air passage is provided on the shell, and a throttle valve 308 is installed at the first gas nozzle 305; a second gas nozzle 306 connected to the first installation space 301 and a second gas nozzle 307 connected to the second installation space 303 are provided on the shell. A third air nozzle 307 is connected to the installation space 303; the second air nozzle 306 and the third air nozzle 307 are both used to connect to the compressed air outlet of the air compressor pump; the first air nozzle 305, the second air nozzle 306 and the third air nozzle 307 are all located at the same end of the shell; when dehumidifying the compressed air, the second air nozzle 306 and the third air nozzle 307 serve as the air inlet nozzle, and the first air nozzle 305 serves as the air outlet nozzle; when back-blowing the first molecular sieve 302 and the second molecular sieve 304 to remove moisture, the second air nozzle 306 and the third air nozzle 307 serve as the air outlet nozzle, and the first air nozzle 305 serves as the air inlet nozzle.

[0090] The housing of the motor 201 and the housing of the drying tank 3 are both mounted on the valve seat 1 by bolts. The housing provides mounting support for the first molecular sieve 302 and the second molecular sieve 304. The first molecular sieve 302 and the second molecular sieve 304 are used to dry compressed air, which is a prior art. Preferably, the first molecular sieve 302 and the second molecular sieve 304 each include a plurality of spherical molecular sieves, each of which has a diameter of 1.8 to 2.5 mm. When dehumidifying the compressed air, the compressed air coming out of the compressed air outlet of the air compressor is passed into the housing through the second air nozzle 306 and the third air nozzle 307, wherein one stream of compressed air enters the first installation space 301 and is dehumidified by the first molecular sieve 302, and the other stream of compressed air enters the second installation space 303 and is dehumidified by the second molecular sieve 304. The dehumidified dry compressed air enters the air duct and is then discharged through the first air nozzle 305. The dry compressed air finally enters the air storage tank or the air spring. When the first molecular sieve 302 and the second molecular sieve 304 are back-blown to remove moisture, the gas in the gas tank or the air spring enters the air duct through the throttle valve 308 at the first gas nozzle 305, and then enters the first installation space 301 and the second installation space 303 respectively, and the moisture in the first molecular sieve 302 and the second molecular sieve 304 is taken out to the atmosphere through the second gas nozzle 306 and the third gas nozzle 307 respectively, thereby realizing the regeneration function.

[0091] Specifically, the throttle valve 308 includes a mounting tube 309 with openings at both ends and communicating with the air passage. A first limiting plate 310, a second limiting plate 313, and a sphere 316 are disposed within the mounting tube 309. One end of the mounting tube 309 is mounted within the first air nozzle 305, and the other end is located outside the first air nozzle 305. The first limiting plates 310 and the second limiting plates 313 are spaced apart in pairs along the axial direction of the mounting tube 309 and are coaxially disposed. The first limiting plate 310 is located near one end of the mounting tube 309 within the first air nozzle 305, while the second limiting plate 313 is located near the other end of the mounting tube 309 outside the first air nozzle 305. The first limiting plate 310 is provided with a throttle hole 311 and a first air hole 312, the first air hole 312 is located in the middle of the first limiting plate 310, and the throttle hole 311 is located on one side of the first air hole 312; the second limiting plate 313 is provided with a second air hole 314 deviated from its own center; the sphere 316 is installed between the first limiting plate 310 and the second limiting plate 313, and the diameter of the sphere 316 is smaller than the distance between the first limiting plate 310 and the second limiting plate 313, and smaller than the inner diameter of the mounting tube 309; the sphere 316 is used to block or open the first air hole 312 on the first limiting plate 310.

[0092] One end of the mounting cylinder 309 is located in the first air nozzle 305 and is connected to the first air nozzle 305 through a card slot block structure or a threaded structure. The mounting cylinder 309 provides mounting support for the first limit plate 310, the second limit plate 313 and the sphere 316. The outer edge of the first limit plate 310 and the outer edge of the second limit plate 313 are both welded to the inner wall of the mounting cylinder 309. The sphere 316 is movably installed in the space between the first limit plate 310 and the second limit plate 313. The sphere 316 can be a rubber product, a silicone product, a PVC product, etc., preferably a rubber product. The second air hole 314 deviates from the center of the second limit plate 313 itself, and when the sphere 316 abuts against the second limit plate 313, the sphere 316 is prevented from blocking the second air hole 314. When dehumidifying the compressed air, the compressed air dried by the first molecular sieve 302 and the second molecular sieve 304 enters the mounting cylinder 309 through the air passage, passes through the throttle hole 311 and the first air hole 312, and enters the space between the first limiting plate 310 and the second limiting plate 313. The sphere 316, pushed by the dry compressed air, abuts against the second limiting plate 313, and the dry compressed air is discharged through the second air hole 314. When back-flushing the first and second molecular sieves 302 and 304 to remove moisture, the back-flushing gas enters the mounting cylinder 309 in the opposite direction, passes through the second air hole 314, and enters the space between the first limiting plate 310 and the second limiting plate 313. The sphere 316, pushed by the back-flushing gas, blocks the first air hole 312, and the back-flushing gas enters the air passage through the throttle hole 311. The throttle valve 308 controls the rate at which the gas is discharged.

[0093] Preferably, a first sealing ring 334 is provided between one end of the mounting tube 309 located in the first air nozzle 305 and the inner wall of the first air nozzle 305. The first sealing ring 334 is used to seal the gap between one end of the mounting tube 309 located in the first air nozzle 305 and the inner wall of the first air nozzle 305.

[0094] Preferably, a boss 315 is provided in the middle of the second limiting plate 313, located on the side of the second limiting plate 313 adjacent to the first limiting plate 310. The second air hole 314 is located outside the boss 315. When the ball 316 abuts the second limiting plate 313, the ball 316 abuts the boss 315, improving the discharge efficiency of the dry compressed air.

[0095] Preferably, a plurality of the second air holes 314 are provided, and the plurality of the second air holes 314 are evenly distributed along the circumference of the boss 315 .

[0096] Preferably, it also includes a first pressure plate 317 and a first compression spring 320 arranged in the first installation space 301; there are two first pressure plates 317, one of which is arranged adjacent to the second gas nozzle 306, and the other first pressure plate 317 is away from the second gas nozzle 306; the first molecular sieve 302 is located between the two first pressure plates 317; the first pressure plate 317 is provided with a first through hole 319 connected to the first installation space 301; the first pressure plate 317 is provided with a first support leg 318, and the first support leg 318 is located between the back side of the first pressure plate 317 away from the first molecular sieve 302 and the inner wall of the shell; the first compression spring 320 is located between the first pressure plate 317 away from the second gas nozzle 306 and the inner wall of the shell.

[0097] The first molecular sieve 302 is positioned between two first pressure plates 317 arranged in a pair, and is compacted by a first compression spring 320. The first legs 318 are provided to provide a gap between the first pressure plates 317 and the inner wall of the housing, ensuring that both compressed air and backflush gas can pass smoothly through the first through-holes 319 in the first pressure plates 317. The first legs 318 can be cylindrical structures arranged circumferentially along the first pressure plates 317, or they can be multiple block-shaped structures evenly distributed on the first pressure plates 317.

[0098] As a further preferred embodiment, a first breathable gasket 321 is further included, which is disposed between the first pressing plate 317 and the first molecular sieve 302. The first breathable gasket 321 is preferably made of fiber cotton, which has the functions of sound absorption and dust filtering, and can further compact the first molecular sieve 302.

[0099] Preferably, it also includes a second pressure plate 322 and a second clamping spring 325 located in the second installation space 303; two second pressure plates 322 are provided, one of which is arranged adjacent to the third gas nozzle 307, and the other second pressure plate 322 is away from the third gas nozzle 307; the second molecular sieve 304 is located between the two second pressure plates 322; the second pressure plate 322 is provided with a second through hole 324 connected to the second installation space 303; the second pressure plate 322 is provided with a second support leg 323, and the second support leg 323 is located between the back side of the second pressure plate 322 away from the second molecular sieve 304 and the inner wall of the shell; the second compression spring 325 is located between the second pressure plate 322 away from the third gas nozzle 307 and the inner wall of the shell.

[0100] The second molecular sieve 304 is disposed between the two second pressure plates 322 arranged in a pair, and is compacted by a second compression spring 325. The second legs 323 are provided to provide a gap between the second pressure plates 322 and the inner wall of the housing, ensuring that both compressed air and backflush gas can pass smoothly through the second through-holes 324 in the second pressure plates 322. The second legs 323 can be cylindrical structures arranged circumferentially along the second pressure plates 322, or they can be multiple block-shaped structures evenly distributed on the second pressure plates 322.

[0101] Preferably, a second breathable gasket 326 is further included, which is disposed between the second pressing plate 322 and the second molecular sieve 304. The second breathable gasket 326 is preferably made of fiber cotton, which has the functions of sound attenuation and dust filtering, and can further compact the second molecular sieve 304.

[0102] The shell can be an integral structure formed in one piece. Preferably, the shell includes a first tank body 327, a second tank body 328, an air pipe 331 and a cover body 332 arranged in parallel in pairs. The first tank body 327 and the second tank body 328 are both barrel structures with one end open; the second gas nozzle 306 is arranged at the bottom of the first tank body 327, and the third gas nozzle 307 is arranged at the bottom of the second tank body 328; the open end of the first tank body 327 and the open end of the second tank body 328 are connected by a connecting plate 329, and the connecting plate 329 is provided with a groove 330 for connecting the inner cavity of the first tank body 327 and the inner cavity of the second tank body 328; the air pipe 331 is located between the first tank body 327 and the second tank body 328; one end of the air pipe 331 is connected to the connecting plate 329, and the other end of the air pipe 331 is connected to the connecting plate 329. One end serves as the third gas nozzle 307; the gas supply pipe 331 is connected to the inner cavity of the groove 330; the first tank body 327, the second tank body 328 and the connecting plate 329 are all detachably connected to the cover body 332; the cover body 332 closes or opens the opening of the groove 330, the opening of the first tank body 327 and the opening of the second tank body 328; when the cover body 332 closes the opening of the groove 330, the opening of the first tank body 327 and the opening of the second tank body 328, the gas delivery channel formed by the inner wall of the cover body 332 and the inner wall of the groove 330, and the gas supply pipe 331 together serve as the airway; the inner wall of the cover body 332 and the inner cavity of the first tank body 327 form the first installation space 301, and the inner wall of the cover body 332 and the inner cavity of the second tank body 328 form the second installation space 303.

[0103] The housing is designed as a split structure, making it easy to open the cover 332 to replace the first and second molecular sieves 302 and 304. The opening edges of the first tank 327, the opening edges of the groove 330, and the opening edges of the second tank 328 are all removably connected to the cover 332 via bolts. The open ends of the first and second tanks 327 and 328 are welded to the connecting plate 329. One end of the gas pipe 331 is also welded to the connecting plate 329.

[0104] Preferably, it also includes a second sealing ring 335 arranged between the opening of the groove 330, the opening of the first tank body 327, the opening of the second tank body 328 and the cover body 332, and the gap between the opening of the groove 330, the opening of the first tank body 327, the opening of the second tank body 328 and the cover body 332 is sealed by the second sealing ring 335.

[0105] To improve the structural stability of the first tank body 327, the gas pipe 331, and the second tank body 328, the outer wall of the gas pipe 331 is preferably connected to the outer wall of the second tank body 328, and the first tank body 327 and the gas pipe 331 are connected via a reinforcing plate 333. The outer wall of the gas pipe 331 is welded to the outer wall of the second tank body 328. One end of the reinforcing plate 333 is welded to the outer wall of the first tank body 327, and the other end is welded to the outer wall of the gas pipe 331. Multiple reinforcing plates 333 can be provided, and the multiple reinforcing plates 333 are spaced apart along the axial direction of the gas pipe 331.

[0106] The embodiments of this specific implementation are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electronically controlled integrated automobile air suspension device, characterized in that: The invention comprises a valve seat (1), a controller (4) installed on the valve seat (1), an air compression pump (2), an air storage tank, an air spring and a drying tank (3); the valve seat (1) is provided with an air compression pump air inlet interface, an air compression pump compressed air outlet interface, an air storage tank interface (104), a drying tank second air nozzle interface (102), a drying tank third air nozzle interface (103), a drying tank first air nozzle interface (101) and an air spring interface; the air compression pump air inlet is connected to the air compression pump air inlet interface. The compressed air outlet of the air compression pump is connected to the compressed air outlet interface of the air compression pump; the first air nozzle (305) of the drying tank (3) is connected to the first air nozzle interface (101) of the drying tank, the second air nozzle (306) of the drying tank (3) is connected to the second air nozzle interface (102) of the drying tank, and the third air nozzle (307) of the drying tank (3) is connected to the third air nozzle interface (103) of the drying tank; the air port of the air storage tank is connected to the air storage tank interface (104); and the air spring is connected to the air spring interface; The valve seat (1) is provided with a valve seat flow channel, and the valve seat flow channel includes a first flow channel (105), a second flow channel (106), a third flow channel (107), a fourth flow channel (108), a fifth flow channel (109), a sixth flow channel (125), and a seventh flow channel (126); The air inlet interface of the air compression pump is connected to the atmosphere through the sixth flow channel (125); the second air nozzle interface (102) of the drying tank, the third air nozzle interface (103) of the drying tank and the compressed air outlet interface of the air compression pump are connected through the first flow channel (105); an exhaust valve (110) is installed on the valve seat (1), and the exhaust valve (110) is located on the first flow channel (105) pipe section between the second air nozzle interface (102) of the drying tank and the third air nozzle interface (103) of the drying tank. The exhaust valve (110) is connected to the atmosphere through the seventh flow channel (126); The first gas nozzle interface (101) of the drying tank is connected to the gas storage tank interface (104) via the second flow channel (106), and a third switching valve (113) for controlling the on-off of the second flow channel (106) is installed on the valve seat (1); The air spring interface is connected to the air inlet interface of the air compression pump via a third flow channel (107); a first switching valve (111) for controlling the on-off of the third flow channel (107) is installed on the valve seat (1); the air storage tank interface (104) is connected to the air inlet interface of the air compression pump via a fourth flow channel (108); a second switching valve (112) for controlling the on-off of the fourth flow channel (108) is installed on the valve seat (1); The first air nozzle interface (101) of the drying tank is connected to the air spring interface via a fifth flow channel (109), and a fourth switching valve (114) for controlling the opening and closing of the fifth flow channel (109) is installed on the valve seat (1); The air compression pump (2), the air spring, the first switching valve (111), the second switching valve (112), the third switching valve (113), the fourth switching valve (114) and the exhaust valve (110) are all electrically connected to the controller (4).

2. The electronically controlled integrated automobile air suspension device according to claim 1, characterized in that: The air compression pump (2) comprises a motor (201) and a piston body; the motor (201) is mounted on the valve seat (1); The valve seat (1) is provided with an installation chamber, and the piston body is installed in the installation chamber; the output shaft of the motor (201) is in transmission connection with the piston rod of the piston body; the compressed air outlet and the air inlet of the air compression pump are both provided on the piston cylinder of the piston body; The motor (201) is electrically connected to the controller (4).

3. The electronically controlled integrated automobile air suspension device according to claim 2, wherein: A power limiting valve (115) is installed on the valve seat (1), and the valve seat flow channel further includes an eighth flow channel (127). The air inlet interface of the air compression pump is connected to the first flow channel (105) through the eighth flow channel (127). The connection between the first flow channel (105) and the eighth flow channel (127) is located between the exhaust valve (110) and the second air nozzle interface (102) of the drying tank. The power limiting valve (115) is used to control the on-off of the eighth flow channel (127). The power limiting valve (115) is electrically connected to the controller (4).

4. The electronically controlled integrated automobile air suspension device according to claim 3, characterized in that: A pressure and temperature sensor (116) for detecting the pressure and temperature of gas in the valve seat flow channel is installed on the valve seat (1); the pressure and temperature sensor (116) is connected to the valve seat flow channel.

5. The electronically controlled integrated automobile air suspension device according to claim 3, wherein: The controller (4) comprises a protective shell (401) and a control chip, the protective shell (401) is connected to the valve seat (1), and the control chip is arranged in the protective shell (401); The motor (201), the air spring, the first switching valve (111), the second switching valve (112), the third switching valve (113), the fourth switching valve (114), the exhaust valve (110) and the power limiting valve (115) are all electrically connected to the control chip.

6. The electronically controlled integrated automobile air suspension device according to claim 5, characterized in that: It also includes a controller socket (5), which is provided on the protective shell (401) and arranged adjacent to one end of the valve seat (1); a circuit board of the controller socket (5) is electrically connected to a control chip.

7. The electronically controlled integrated automobile air suspension device according to claim 1, wherein: The drying tank (3) comprises a shell, wherein a first installation space (301) and a second installation space (303) are provided in the shell; a first molecular sieve (302) is provided in the first installation space (301), and a second molecular sieve (304) is provided in the second installation space (303); An air passage for connecting the first installation space (301) and the second installation space (303) is provided in the shell; a first air nozzle (305) connected to the air passage is provided on the shell, and a throttle valve (308) is installed at the first air nozzle (305); a second air nozzle (306) connected to the first installation space (301) and a third air nozzle (307) connected to the second installation space (303) are provided on the shell; the second air nozzle (306) and the third air nozzle (307) are both used to connect to the compressed air outlet of the air compressor pump; the first air nozzle (305), the second air nozzle (306) and the third air nozzle (307) are all located at the same end of the shell; When dehumidifying the compressed air, the second air nozzle (306) and the third air nozzle (307) serve as air inlet nozzles, and the first air nozzle (305) serves as air outlet nozzles; when back-flushing the first molecular sieve (302) and the second molecular sieve (304) to remove moisture, the second air nozzle (306) and the third air nozzle (307) serve as air outlet nozzles, and the first air nozzle (305) serves as an air inlet nozzle.

8. The electronically controlled integrated automobile air suspension device according to claim 7, wherein: The throttle valve (308) comprises a mounting tube (309) with openings at both ends and connected to the first gas nozzle (305), wherein a first limiting plate (310), a second limiting plate (313) and a sphere (316) are arranged in the mounting tube (309); one end of the mounting tube (309) is mounted in the first gas nozzle (305), and the other end is located outside the first gas nozzle (305); The first limiting plate (310) and the second limiting plate (313) are arranged in pairs along the axial direction of the mounting tube (309), and the three are coaxially arranged; the first limiting plate (310) is located at one end of the first gas nozzle (305) close to the mounting tube (309), and the second limiting plate (313) is located at the other end outside the first gas nozzle (305) close to the mounting tube (309); The first limiting plate (310) is provided with a throttle hole (311) and a first air hole (312), wherein the first air hole (312) is located in the middle of the first limiting plate (310), and the throttle hole (311) is located on one side of the first air hole (312); the second limiting plate (313) is provided with a second air hole (314) deviated from its own center; The sphere (316) is installed between the first limiting plate (310) and the second limiting plate (313); the diameter of the sphere (316) is smaller than the distance between the first limiting plate (310) and the second limiting plate (313), and smaller than the inner diameter of the mounting tube (309); the sphere (316) is used to block or open the first air hole (312) on the first limiting plate (310).

9. The electronically controlled integrated automobile air suspension device according to claim 8, characterized in that: A boss (315) is provided in the middle of the second limiting plate (313), and the boss (315) is located on a side of the second limiting plate (313) adjacent to the first limiting plate (310); the second air hole (314) is located outside the boss (315).

10. The electronically controlled integrated automobile air suspension device according to claim 9, characterized in that: It also includes a first pressing plate (317) and a first pressing spring (320) disposed in the first installation space (301); Two first pressing plates (317) are provided, one of which is adjacent to the second gas nozzle (306), and the other is away from the second gas nozzle (306); the first molecular sieve (302) is located between the two first pressing plates (317); the first pressing plate (317) is provided with a first through hole (319) connected to the first installation space (301); the first pressing plate (317) is provided with a first leg (318), and the first leg (318) is located between the back side of the first pressing plate (317) away from the first molecular sieve (302) and the inner wall of the shell; the first compression spring (320) is located between the first pressing plate (317) away from the second gas nozzle (306) and the inner wall of the shell; It also includes a second pressing plate (322) and a second pressing spring (325) located in the second installation space (303); There are two second pressure plates (322), one of which is arranged adjacent to the third gas nozzle (307), and the other second pressure plate (322) is away from the third gas nozzle (307); the second molecular sieve (304) is located between the two second pressure plates (322); the second pressure plate (322) is provided with a second through hole (324) connected to the second installation space (303); the second pressure plate (322) is provided with a second leg (323), and the second leg (323) is located between the back side of the second pressure plate (322) away from the second molecular sieve (304) and the inner wall of the shell; the second compression spring (325) is located between the second pressure plate (322) away from the third gas nozzle (307) and the inner wall of the shell.

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