A modular closed-loop air suspension air supply unit

Abstract

This utility model relates to the field of air suspension compressors, and more particularly to a modular closed-loop air suspension air supply unit, comprising: a valve block and an integrated air supply module, filter module, and electronic control module. The air supply module adopts a piston-cylinder structure, with an inertial wheel driving a connecting rod to drive the piston in reciprocating motion. The air supply module and filter module are quickly connected via a quick-release air delivery assembly. The filter module has dual filter chambers, both filled with molecular sieve gas chambers. The sealing caps are fixed to the outer shell by screwing, riveting, or welding. The electronic control module can be quickly disassembled or its position adjusted. This utility model provides a modular, closed-loop air suspension air supply unit with standardized interfaces, addressing the lack of modular air suspension air supply units in the prior art that are easy to replace and assemble, thus improving the convenience of the air suspension system.

Description

Technical Field

[0001] This utility model relates to the field of air suspension compressors, and in particular to a modular closed-type air suspension air supply unit. Background Technology

[0002] As the core power component of the air suspension system, the air supply unit's technological development stems from the fact that traditional mechanical suspensions cannot meet the dynamic needs of vehicles for comfort, handling, and adaptability. Especially under high-speed driving or complex road conditions, the rigid structure of traditional suspensions causes vehicle body bumps and sluggish handling, prompting the industry to seek more intelligent solutions.

[0003] Early air suspensions relied on mechanical height valves for basic vehicle height adjustment, but these had problems such as slow response and low precision. For example, during sharp turns or sudden load changes, the delayed response of the mechanical valves would exacerbate body roll and instability. With the popularization of electronic control technology, air suspension supply units began to integrate sensors and ECUs. By monitoring vehicle speed, load, and road condition data in real time, they could precisely control the amount of compressed air supplied and discharged, giving the suspension an intelligent characteristic of "adjustable stiffness." This significantly improved the vehicle's vibration damping effect on bumpy roads and its stability during high-speed cornering, while also optimizing energy efficiency and ride comfort.

[0004] In recent years, with breakthroughs in materials science and modular design, air suspension air supply units have evolved towards high efficiency, lightweight and integration. For example, high-strength aluminum alloys and composite materials are used to reduce weight, and modular components simplify the production process. However, most existing products on the market are fixed designs and lack modular air suspension air supply units that can be easily replaced and assembled. This limits their convenience in maintenance and personalized upgrades, especially in after-sales service and user customization needs. Utility Model Content

[0005] Therefore, this utility model provides a modular closed air suspension air supply unit to overcome the problem that there is a lack of modular air suspension air supply units in the prior art that are easy to replace and assemble.

[0006] To achieve the above objectives, this utility model provides a modular closed-loop air suspension air supply unit, comprising:

[0007] Valve block;

[0008] An air supply module includes a drive motor mounted on the top surface of a valve block and a gas compression assembly mounted at the power output end of the drive motor for pressurizing air. The gas compression assembly is provided with an air inlet and several air outlets.

[0009] A filter module for filtering the compressed gas output from the gas compression assembly;

[0010] The gas supply module and the filter module are directly connected or connected through several quick-release gas delivery components.

[0011] The electronic control module is electrically connected to the gas supply module. The electronic control module is fixed to the valve block by magnetic adhesive on the back, or by bolts, or is only electrically connected to the gas supply module.

[0012] Furthermore, the quick-release air supply assembly includes a first connector disposed at the output end of the air outlet of the air supply module, an air supply pipe disposed at the output end of the first connector, and a second connector disposed on the filter module.

[0013] The second connector is connected to the output end of the gas supply pipe.

[0014] Furthermore, the gas output end of the gas compression component is directly connected to the gas input end of the filter module.

[0015] Furthermore, the gas compression assembly is a piston-cylinder structure, including an inertia wheel, connecting rod, piston, piston cylinder, and gas chamber;

[0016] The inertia wheel is mounted on the power output end of the drive motor. One end of the connecting rod is mounted on one side of the inertia wheel, and the other end of the connecting rod is mounted on a piston. The piston cylinder is arranged along the reciprocating direction of the piston, and the air chamber is located at the output end of the piston cylinder.

[0017] Furthermore, a sealing cap is provided on the side of the gas chamber away from the piston, and the sealing cap is screwed to one side of the valve block.

[0018] Furthermore, the filtration module includes a housing, a first filtration chamber and a second filtration chamber disposed inside the housing, and both the first filtration chamber and the second filtration chamber are provided with molecular sieves.

[0019] The first filter chamber has a first filter inlet at its front end and a first filter outlet at its rear end.

[0020] The second filter chamber has a second filter inlet at its tail end and a second filter outlet at its head end.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model solves the problems of large size, difficult maintenance, poor air supply quality and low compatibility of traditional air supply units through innovative designs such as modular integration, quick-release connection, dual-stage filtration, piston compression and sealing optimization, and significantly improves the reliability of the air suspension system.

[0022] Furthermore, through modular design, the gas supply module, filtration module, and electronic control module are integrated into a single valve block, with each module having independent functions and standardized interfaces.

[0023] Furthermore, a standardized connection design is adopted for the first connector, the gas supply pipe, and the second connector, allowing for quick plugging and unplugging of the gas supply module and the filter module.

[0024] Furthermore, the electronic control module can be connected to one side of the valve block via magnetic attraction or bolts, allowing users to quickly disassemble or adjust its position for easy operation and maintenance.

[0025] Furthermore, the filter module is equipped with a first filter chamber and a second filter chamber. The first filter chamber is connected to the air outlet of the air supply module at its front end, and the second filter chamber is connected to the rear end of the second filter chamber through the first filter outlet, forming a "series + cross" airflow path, which extends the filtration path and improves the impurity rejection rate.

[0026] Furthermore, both filtration chambers are filled with molecular sieves, which can efficiently adsorb moisture, oil, and fine particles, improve the cleanliness of the output air, and significantly extend the service life of the air springs.

[0027] Furthermore, the piston reciprocates by driving the connecting rod through the inertial wheel, achieving efficient compression with fewer moving parts, lower frictional loss, and reduced mechanical noise.

[0028] Furthermore, a sealing cover is installed on the side of the gas chamber away from the piston and fixed to the outer shell by screwing, riveting or welding, which not only ensures the sealing performance of the gas chamber under high pressure environment, but also facilitates disassembly and maintenance. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a modular closed air suspension air supply unit according to an embodiment of the present invention;

[0030] Figure 2 This is a front sectional view of the overall structure of the gas supply module in an embodiment of this utility model;

[0031] Figure 3 This is a top cross-sectional view of the overall structure of the gas supply module in an embodiment of this utility model;

[0032] Figure 4 This is a left sectional view of the overall structure of the filtering module in an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the overall structure of the gas supply module in an embodiment of this utility model;

[0034] Figure 6 This is a schematic diagram of the direct connection between the gas supply module and the filter module in an embodiment of this utility model;

[0035] In the diagram: 1. Valve block; 2. Drive motor; 5. Electronic control module; 61. First connector; 62. Air supply pipe; 63. Second connector; 331. Inertia wheel; 332. Connecting rod; 333. Piston; 334. Piston cylinder; 335. Air chamber; 7. Sealing cover; 8. Housing; 81. First filter chamber; 82. Second filter chamber; 83. Molecular sieve; 811. First filter air inlet; 812. First filter air outlet; 821. Second filter air inlet; 822. Second filter air outlet. Detailed Implementation

[0036] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0038] In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0040] This utility model discloses a modular closed air suspension air supply unit to solve the problem of the lack of modular air suspension air supply units that are easy to replace and assemble in the prior art.

[0041] Please see Figure 1-6The following are schematic diagrams of the overall structure of a modular closed air suspension air supply unit according to an embodiment of the present invention: a front sectional view of the overall structure of the air supply module according to an embodiment of the present invention; a top sectional view of the overall structure of the air supply module according to an embodiment of the present invention; a left sectional view of the overall structure of the filter module according to an embodiment of the present invention; a schematic diagram of the overall structure of the air supply module according to an embodiment of the present invention; and a schematic diagram of the direct connection between the air supply module and the filter module according to an embodiment of the present invention.

[0042] An embodiment of this utility model provides a modular closed air suspension air supply unit, comprising:

[0043] Valve block 1;

[0044] The air supply module includes a drive motor 2 disposed on the top surface of the valve block 1 and a gas compression assembly disposed at the power output end of the drive motor 2 for pressurizing air. The gas compression assembly is provided with an air inlet and several air outlets.

[0045] A filter module for filtering the compressed gas output from the gas compression assembly;

[0046] The gas supply module and the filter module are directly connected or connected through several quick-release gas delivery components.

[0047] The electronic control module 5 is electrically connected to the gas supply module. The electronic control module 5 is fixed to the valve block 1 by magnetic adhesive on its back, or by bolts, or is only electrically connected to the gas supply module.

[0048] Specifically, one end of the air intake is connected to the air chamber 335, and the other end is connected to the external air pressure; the plurality of air outlets are correspondingly connected to the output end of the quick-release air supply assembly, and the specific implementation is not shown in the figure.

[0049] Specifically, the valve block 11 is made of high-strength aluminum alloy, such as 6061-T6, with an anodized surface to enhance corrosion resistance. It features internal modular mounting slots and cable management slots for securing the air supply module, filter module, and wiring. One side of the valve block 1 has a pre-installed magnetic or bolt mounting position, while the other side has heat dissipation fins to optimize thermal management.

[0050] Specifically, the drive motor can be a brushless DC motor with a rated power of 300W and a speed range of 0-8000rpm, and is protected by IP67-level encapsulation to prevent dust and moisture intrusion.

[0051] Specifically, the electronic control module is an automotive ECU, used to receive CAN bus commands from the vehicle and feedback signals from the suspension system pressure and height sensors. It controls the start / stop and speed adjustment of the drive motor in the air supply module, as well as the opening and closing status of the solenoid valves in real time, to achieve precise height adjustment, dynamic pressure stabilization, and fault diagnosis functions for the closed air suspension. Its input end is connected to the drive circuit of the air supply module and the sensor components of the filter module through a waterproof shielded cable, and its output end is connected to the vehicle control system through a standard CAN bus interface. The housing is made of flame-retardant ABS material, and the back is provided with a magnetic positioning groove or M4 bolt mounting hole that matches the valve block. The surface is integrated with heat dissipation textures, and the internal low-power microcontroller operates in a voltage range of 12-24V DC. It has overvoltage, overcurrent, and overheat protection functions, and the protection level reaches IP65, which can adapt to the complex working environment of the vehicle.

[0052] Specifically, the quick-release air supply assembly includes a first connector 61 disposed at the output end of the air outlet of the air supply module, an air supply pipe 62 disposed at the output end of the first connector 61, and a second connector 63 disposed on the filter module.

[0053] The second connector 63 is connected to the output end of the gas supply pipe 62.

[0054] Specifically, the quick-release air supply assembly includes a first connector 61 disposed at the output end of the air outlet of the air supply module. The first connector 61 is made of nickel-plated brass and has a quick-plug structure. It is internally fitted with a nitrile rubber sealing ring, which can achieve quick sealing and plugging with the air outlet to effectively prevent compressed air leakage. The output end of the first connector 61 is connected to an air supply pipe 62. The air supply pipe 62 is a PVC reinforced fiber hose with a high-strength polyester fiber mesh woven inside the pipe wall. The thickness is up to 3.5mm, which has good flexibility for easy wiring and can withstand the high-pressure air output by the air supply module.

[0055] Specifically, the filter module is provided with a second connector 63, which is a threaded design with a diamond-shaped anti-slip texture on the outer surface. It is fastened to the air inlet of the filter module through a fine M12×1.5 thread, and a spring washer is provided at the connection to prevent loosening caused by vibration during vehicle operation. The output end of the air supply pipe 62 is connected to the second connector 63 with a snap-fit ​​structure. The inner side of the snap-fit ​​has an elastic protrusion, which cooperates with the annular groove on the second connector 63 to lock it. During disassembly, it can be quickly separated by pressing both sides of the snap-fit ​​without the use of tools, which greatly simplifies the maintenance and disassembly process between the air supply module and the filter module.

[0056] Specifically, the gas compression assembly can be directly connected to the first filter inlet 811 and the second filter inlet 821 of the filter module through several of the gas outlets.

[0057] Specifically, the gas compression assembly is a piston 333 cylinder structure, including an inertia wheel 331, a connecting rod 332, a piston 333, a piston 333 cylinder, and a gas chamber 335.

[0058] The inertia wheel 331 is fixed to the power output shaft of the drive motor by a key connection. The two ends of the connecting rod 332 are respectively connected to the eccentric position of the inertia wheel 331 and the top of the piston 333 by ball joints. The piston 333 cylinder is a high-precision chrome-plated steel pipe with an inner diameter of 20mm, a stroke of 15mm, a volume of 50mL in the air chamber 335, and an output pressure range of 0.2-1.2MPa.

[0059] Specifically, a sealing cover 7 is provided on the side of the gas chamber 335 away from the piston 333, and the sealing cover 7 is screwed to one side of the valve block 1.

[0060] Specifically, the filtration module includes a housing 8, a first filtration chamber 81 and a second filtration chamber 82 disposed inside the housing 8, and a molecular sieve 83 disposed inside both the first filtration chamber 81 and the second filtration chamber 82; the molecular sieve 83 may be a novel composite molecular sieve 83.

[0061] Specifically, the shell 8 is made of transparent polycarbonate material, which makes it easy to observe the state of the molecular sieve 83, and the interior is divided into a dual-chamber structure by a partition.

[0062] The first filter chamber 81 is provided with a first filter inlet 811 at its front end and is connected to a first filter outlet 812 at its rear end.

[0063] The second filter chamber 82 is provided with a second filter inlet 821 at the tail end and the second filter outlet 82 at the head end.

[0064] Both the first filter inlet 811 and the second filter inlet 821 use M10×1 threaded interfaces, directly connected to the gas compression assembly outlet via nitrile rubber sealing rings to ensure airtightness; alternatively, they can be connected via quick-release gas delivery components. The first filter outlet 812 and the second filter outlet 822 are located on the side wall of the housing 8, using a quick-connect structure to connect with the suspension airbag inlet hose. The dual-chamber design allows for alternating operation; when one chamber of molecular sieve 83 is saturated, the system switches to the other chamber to continue supplying gas without stopping the machine. Simultaneously, the parallel connection of the two chambers increases the filtration area, reduces gas flow resistance, and improves gas supply efficiency.

[0065] This invention adopts a split structure, which allows for flexible layout and functional decomposition, thereby improving the reliability of the air suspension supply unit. Each module of the air suspension supply unit is installed independently, facilitating after-sales maintenance and reducing after-sales costs. The control module can be controlled autonomously or the controller can be disassembled and controlled by the vehicle domain control, making it convenient for customers to choose.

[0066] For those skilled in the art, based on the ideas of the embodiments of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A modular closed air suspension air supply unit, characterized by, include: Valve block; An air supply module includes a drive motor mounted on the top surface of a valve block and a gas compression assembly mounted at the power output end of the drive motor for pressurizing air. The gas compression assembly is provided with an air inlet and several air outlets. A filter module for filtering the compressed gas output from the gas compression assembly; The gas supply module and the filter module are directly connected or connected through several quick-release gas delivery components. An electronic control module is electrically connected to the gas supply module. The electronic control module is fixed to the valve block by magnetic adhesive on the back, or by bolts, or is only electrically connected to the gas supply module. The gas compression assembly is a piston-cylinder structure, including an inertia wheel, connecting rod, piston, piston cylinder, and gas chamber. The inertia wheel is mounted on the power output end of the drive motor, one end of the connecting rod is mounted on one side of the inertia wheel, the other end of the connecting rod is mounted on a piston, the piston cylinder is mounted along the piston reciprocating direction, and the air chamber is mounted on the output end of the piston cylinder. The filtration module includes a housing, a first filtration chamber and a second filtration chamber disposed inside the housing, and both the first filtration chamber and the second filtration chamber are provided with molecular sieves. The first filter chamber has a first filter inlet at its front end and a first filter outlet at its rear end. The second filter chamber has a second filter inlet at its tail end and a second filter outlet at its head end.

2. The modular closed air suspension air supply unit of claim 1, wherein, The quick-release air supply assembly includes a first connector disposed at the output end of the air outlet of the air supply module, an air supply pipe disposed at the output end of the first connector, and a second connector disposed on the filter module. The second connector is connected to the output end of the gas supply pipe.

3. The modular closed air suspension air supply unit of claim 2, wherein, The gas output terminal of the gas compression component is directly connected to the gas input terminal of the filter module.

4. The modular closed air suspension air supply unit of claim 3, wherein, A sealing cap is provided on the side of the gas chamber away from the piston, and the sealing cap is screwed to one side of the valve block.

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