An air supply device for a vehicle air suspension

Abstract

The utility model belongs to air suspension technical field, concretely relates to an air supply device for vehicle air suspension, including air compression subassembly, the sound insulation casing subassembly of cladding in air compression subassembly outside and the suspension damping subassembly of being fixed on sound insulation casing subassembly, sound insulation casing subassembly includes main support, with acoustic bag lower casing of main support cooperation, suspension damping subassembly includes primary suspension and secondary suspension, primary suspension connects air compression subassembly with main support, secondary suspension connects main support with car body. The utility model's air supply device for vehicle air suspension passes through the two -stage damping structure of primary suspension and secondary suspension, can effectively attenuate the vibration of air compressor, reduces the transmission of vibration to car body, avoids the body resonance and noise, improves the ride comfort of vehicle.

Description

Technical Field

[0001] This utility model relates to the field of air suspension technology, specifically to an air supply device for vehicle air suspension. Background Technology

[0002] In a vehicle's air suspension system, the air supply unit is the core component for achieving vehicle height adjustment. It raises and lowers the vehicle by providing dry, clean, high-pressure gas to the air springs, significantly improving vehicle handling and ride comfort. With the increasing popularity of new energy vehicles, air suspension has expanded from luxury models to mass-market vehicles, placing higher demands on the performance of the air supply unit.

[0003] In existing technologies, air supply units mostly use brushed motor air compressors with reciprocating piston structures. The high-frequency vibrations generated when the air compressor is working are directly transmitted to the vehicle body through the bracket. The existing device's suspension structure is mostly a single rubber pad, which is difficult to effectively attenuate the vibration, causing the vibration to be transmitted to the vehicle interior, resulting in vehicle body resonance and noise, and reducing the driving experience.

[0004] Therefore, it is necessary to provide new air supply devices for vehicle air suspension. Utility Model Content

[0005] In view of this, the present invention provides an air supply device for vehicle air suspension. Through a two-stage damping structure consisting of a primary suspension component and a secondary suspension component, it can effectively attenuate the vibration of the air compressor, reduce the transmission of vibration to the vehicle body, avoid vehicle body resonance and noise, and improve driving comfort.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: an air supply device for vehicle air suspension is provided, including: an air compression assembly, a sound insulation shell assembly covering the outside of the air compression assembly, and a suspension damping assembly fixed on the sound insulation shell assembly. The sound insulation shell assembly includes a main bracket and an acoustic lower shell that cooperates with the main bracket. The suspension damping assembly includes a primary suspension member and a secondary suspension member. The primary suspension member connects the air compression assembly and the main bracket, and the secondary suspension member connects the main bracket and the vehicle body.

[0007] Furthermore, the air compression assembly includes an air compressor, a control harness connected to the air compressor, and a compressor bracket.

[0008] Furthermore, there are three primary suspension components. One end of one primary suspension component is connected to the compressor bracket, one end of the other two primary suspension components is connected to the air compressor, and the other end of each primary suspension component is connected to the main bracket.

[0009] Furthermore, the main bracket is provided with mounting holes, through which the primary suspension component passes and is fixed to the compressor bracket or air compressor.

[0010] Furthermore, the main bracket is provided with a mounting part, and the secondary suspension component is fixed to the main bracket at one end through the mounting part, and fixed to the vehicle body at the other end.

[0011] Furthermore, the main bracket has mounting holes, through which the primary suspension component passes and is fixed to the compressor bracket or the air compressor.

[0012] Furthermore, the primary suspension component includes a metal connector, a rubber main spring, an auxiliary spring, and a screw.

[0013] Furthermore, the metal connector mates with the mounting hole of the main bracket, the auxiliary spring is nested inside the rubber main spring, and the screw connects to the compressor bracket or the air compressor.

[0014] Furthermore, the secondary suspension component has an inner metal ring and an outer rubber layer.

[0015] Furthermore, a first connector is provided on one side of the main bracket. The first connector is used to fix the end of the control harness. The first connector is fixed to the main bracket by screws.

[0016] The beneficial effects of this utility model are as follows: The air supply device for vehicle air suspension of this utility model includes an air compression assembly, a sound insulation shell assembly covering the outside of the air compression assembly, and a suspension damping assembly fixed on the sound insulation shell assembly. The sound insulation shell assembly includes a main bracket and an acoustic lower shell that cooperates with the main bracket. The suspension damping assembly includes a primary suspension member and a secondary suspension member. The primary suspension member connects the air compression assembly and the main bracket, and the secondary suspension member connects the main bracket and the vehicle body. Through the two-stage damping structure of the primary and secondary suspension members, the air supply device for vehicle air suspension of this utility model can effectively attenuate the vibration of the air compressor, reduce the transmission of vibration to the vehicle body, avoid vehicle body resonance and noise, and improve the ride comfort of the vehicle. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a structural schematic diagram of the air supply device for vehicle air suspension according to this utility model;

[0019] Figure 2 This is an exploded view of the air supply device for vehicle air suspension according to this utility model;

[0020] Figure 3 This is a structural schematic diagram of the air compression assembly and air transmission assembly of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the main support, the first connector, and the second connector of this utility model;

[0022] Figure 5 This is a structural schematic diagram of the primary suspension component of this utility model.

[0023] The component names and their numbers in the diagram are as follows:

[0024] Air supply device 100 for vehicle air suspension;

[0025] Air compression assembly 1, air compressor 11, air inlet 111, exhaust port 112, control wiring harness 12, compressor bracket 13;

[0026] Soundproof housing assembly 2, main bracket 21, fixing part 211, mounting hole 212, mounting part 213, acoustic enclosure lower housing 22, soundproof lining 23, first connector 24, second connector 25;

[0027] Air transmission assembly 3, first air inlet pipe 31, silencer 32, air filter 33, second air inlet pipe 34, high pressure outlet pipe 35, distribution solenoid valve 36;

[0028] Suspension damping assembly 4, primary suspension component 41, metal connector 411, rubber main spring 412, auxiliary spring 413, screw 414, secondary suspension component 42. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] It should be noted that when a component is referred to as "connected to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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 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 this utility model.

[0033] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, a particular feature, structure, or characteristic may be combined in any suitable manner.

[0034] like Figure 1 , Figure 2 As shown, this embodiment provides an air supply device 100 for a vehicle air suspension, including an air compression assembly 1, a sound insulation housing assembly 2 covering the outside of the air compression assembly 1, an air transmission assembly 3 connected to the air compression assembly 1, and a suspension damping assembly 4 fixed on the sound insulation housing assembly 2. The air compression assembly 1 generates a high-pressure air source, thereby driving the air suspension to adjust the vehicle's posture; the sound insulation housing assembly 2 provides overall structural support and forms a sealed isolation cavity to isolate the noise generated by the air compression assembly 1; the air transmission assembly 3 cleans the air, delivers and precisely distributes the gas, realizing the dynamic adjustment of the air suspension; and the suspension damping assembly 4 isolates the air supply device 100 from the vehicle's vibration, improving the vehicle's ride comfort.

[0035] In some of these embodiments, such as Figure 3As shown, the air compression assembly 1 includes an air compressor 11, a control harness 12 connected to the air compressor 11, and a compressor bracket 13. The air compressor 11 utilizes existing technology and is used to compress outside air into high-pressure gas, providing a pressure source for inflating or deflating the airbags of the vehicle's air suspension, thereby enabling the vehicle to lift and lower. One end of the control harness 12 is electrically connected to the air compressor 11, and the other end is connected to the vehicle control system, providing power to the air compressor 11 while simultaneously outputting control signals. The control harness 12 enables speed regulation and air circuit logic scheduling of the air compressor 11, thereby achieving precise dynamic control and safe and reliable operation of the vehicle's air suspension air pressure. The compressor bracket 13 adopts a plate-like metal structure with stamped reinforcing ribs on its surface to enhance rigidity. The shape of the compressor bracket 13 conforms to the top contour of the air compressor 11, balancing space compactness and assembly compatibility. Multiple sets of mounting holes are provided on the edge of the compressor bracket 13 for connection and fixation to the air compressor 11 and the suspension damping assembly 4. Fixing screws are used to secure the compressor bracket 13 to the air compressor 11 through the mounting holes. By fixing the air compressor 11 with the compressor bracket 13, displacement of the air compressor 11 during operation is prevented, and collision between the air compressor 11 and the pipeline and housing is prevented during operation, thus preventing air leakage and component wear. In addition, the compressor bracket 13 is connected and fixed to the air compressor 11 and the suspension vibration damping assembly 4 respectively, so that the high-frequency vibration of the air compressor 11 is transmitted to the suspension vibration damping assembly 4, and the vibration is damped by the elastic deformation of the suspension.

[0036] In some of these embodiments, such as Figure 4As shown, the soundproof housing assembly 2 includes a main support 21, an acoustic lower housing 22 that cooperates with the main support 21, and a soundproof liner 23 disposed below the main support 21. The main support 21 is generally shell-shaped and is made of aluminum alloy, which provides a lightweight feel while ensuring strength. A first connector 24 is also provided on one side of the main support 21. The first connector 24 is fixed to the main support 21 by screws and is suitable for fixing the end of the control harness 12 to prevent the control harness 12 from moving. The acoustic lower housing 22 is fixed below the main support 21. The acoustic lower housing 22 cooperates with the edge of the main support 21 and is fixed to the main support 21 by screws, so that the internal cavity formed by the acoustic lower housing 22 and the main support 21 is used to house the air compressor 11. The acoustic enclosure 22 is made of plastic. Using plastic for the acoustic enclosure 22 reduces the weight of the air supply device 100 and lowers costs. Furthermore, the plastic material also provides sound insulation. One end of the control harness 12 of the air compressor assembly 1 is fixedly connected to the air compressor 11. The control harness 12 is connected in the middle, and a through hole is pre-set between the acoustic enclosure 22 and the main bracket 21 to allow the control harness 12 to pass through, allowing the other end of the control harness 12 to extend to the outside of the acoustic enclosure 22. The other end of the control harness 12 is fixed to one side of the main bracket 21 by the first connector 24. The sound-insulating liner 23 is made of sound-insulating material. As an example, the sound insulation liner 23 is made of non-woven sound-absorbing cotton. The sound insulation liner 23 is filled between the main support 21 and the air compressor 11. Since the main support 21 is made of aluminum alloy, it is easy to vibrate and generate noise between itself and the air compressor 11. The sound insulation liner 23 between the main support 21 and the air compressor 11 has a strong sound insulation effect and can effectively reduce the outward radiation of the working noise of the air compressor 11.

[0037] In some embodiments, the air transmission assembly 3 includes a first intake pipe 31, a silencer 32 connected to the end of the first intake pipe 31, an air filter 33, a second intake pipe 34, a high-pressure exhaust pipe 35, and a distribution solenoid valve 36 connected to the high-pressure exhaust pipe 35. The intake end of the first intake pipe 31 is connected to the silencer 31 for silencing the gas when the air compressor 11 is drawing in air in the forward direction or exhausting air in the reverse direction. The silencer 31 is used to silence the gas passing through it, and it employs a conventional silencing structure. The air filter 33 is connected to the other end of the first intake pipe 31 and is used to filter impurities in the intake air; it employs a conventional filter structure. One end of the second intake pipe 34 is connected to the air filter 33, and the other end is connected to the air inlet 111 of the air compressor 11. External air first enters through the muffler 32, then passes through the first intake pipe 31 and the air filter 33 for filtration before entering the second intake pipe 34 and being input into the air compressor 11 for compression. One end of the high-pressure exhaust pipe 35 is connected to the exhaust port 112 of the air compressor 11, and the other end is connected to the distribution solenoid valve 36. The high-pressure gas formed after compression by the air compressor 11 is discharged through the high-pressure exhaust pipe 35 and then distributed to different flow paths in the air suspension through the distribution solenoid valve 36, thereby realizing the dynamic adjustment of the vehicle height through the air suspension.

[0038] Furthermore, it should be noted that the first intake pipe 31, the muffler 32 connected to the end of the first intake pipe 31, the air filter 33, and the distribution solenoid valve 36 connected to the high-pressure exhaust pipe 35 are all located outside the acoustic enclosure lower housing 22 and the main support 21. Only the portions of the second intake pipe 34 and the high-pressure exhaust pipe 35 connected to the air compressor 11 are located inside the acoustic enclosure lower housing 22 and the main support 21. A through hole is pre-set between the acoustic enclosure lower housing 22 and the main support 21 to allow the pipe portions of the second intake pipe 34 and the high-pressure exhaust pipe 35 to pass through, so that portions of the second intake pipe 34 and the high-pressure exhaust pipe 35 extend outside the acoustic enclosure lower housing 22. A second connector 25 is also provided on one side of the main support 21. The second connector 25 is used to fix the distribution solenoid valve 36. The second connector 25 is fixed to the main support 21 by screws to prevent the distribution solenoid valve 36 from shifting. A fixing part 211 is also provided on the other side of the main support 21. The fixing part 211 is used to fix the air filter 33.

[0039] In some of these embodiments, such as Figure 5As shown, the suspension damping assembly 4 includes a primary suspension component 41 and a secondary suspension component 42. Three primary suspension components 41 are provided; one end of one primary suspension component 41 is connected to the compressor bracket 13, and one end of the other two primary suspension components 41 are connected to the air compressor 11. The other ends of each primary suspension component 41 are connected to the main bracket 21. The main bracket 21 has mounting holes 212 through which the primary suspension components 41 pass and are fixed to the compressor bracket 13 or the air compressor 11. The primary suspension component 41 includes a metal connector 411, a rubber main spring 412, an auxiliary spring 413, and a screw 414. The metal connector 411 is approximately a circular metal connecting disc, passing through the mounting hole 212 for fixation. The auxiliary spring 413 is nested within the rubber main spring 412 to enhance low-frequency vibration isolation capability. The screw 414 connects to the compressor bracket 13 or the air compressor 11. The rubber main spring 412 provides high-frequency vibration isolation, such as electromagnetic vibration of the compressor motor. The auxiliary spring 413 is used to assist in bearing low-frequency, high-load conditions, such as the impact load during rapid vehicle acceleration. The primary suspension component 41 significantly reduces the transmission of vibration from the air compressor 11 to the vehicle body, while also buffering impact loads and reducing fatigue damage to the main support 21 and the air compressor 11. A mounting part 215 is provided on the main support 21, and the secondary suspension component 42 is fixed to the main support 21 at one end via the mounting part 215, and to the vehicle body at the other end. The secondary suspension component 42 has an inner metal ring and an outer rubber layer, and is used to absorb the vertical and lateral vibrations of the main support 21. The secondary suspension component 42, in conjunction with the primary suspension component 41, reduces the transmission of vibration from the air compressor 11 to the vehicle body. Simultaneously, the secondary suspension component 42 reduces rigid collisions between the main support 21 and the vehicle body, lowering the risk of loosening connecting bolts.

[0040] During installation, the air supply device 100 for vehicle air suspension of this utility model is first fixed to the air compressor 11 with fixing screws, ensuring that the mounting holes on the edge of the compressor bracket 13 are aligned with the corresponding holes on the air compressor 11; one end of the control harness 12 is electrically connected to the air compressor 11, and the other end is reserved for connection to the vehicle control system; then, the sound insulation liner 23 is fixed to the inside of the main bracket 21 with screws; the first connector 24 and the second connector 25 are respectively fixed to the preset positions on the main bracket 21 with screws, the first connector 24 is used to fix the end of the control harness 12, and the second connector 25 is used to fix the distribution solenoid valve 36; the acoustic housing 22 is aligned with the edge of the main bracket 21; then, the muffler 32 is connected to the end of the first intake pipe 31, and the other end is connected to the air filter 33, and the air filter 33 is fixed through the fixing part 211 of the main bracket 21; the first intake pipe 31 passes through the preset through hole into the sound insulation housing assembly. Inside component 2, it connects to the second air intake pipe 34; the other end of the high-pressure air outlet pipe 35 is connected to the distribution solenoid valve 36, which is fixed by the second connector 25 to complete the overall air circuit connection; then, the metal connectors 411 of the three primary suspension components 41 are embedded into the mounting holes 212 of the main bracket 21, the rubber main spring 412 is in contact with the inner wall of the mounting hole 212, the screw 414 of the primary suspension component 41 passes through the corresponding hole of the compressor bracket 13 and is tightened by the nut to make the air compression assembly 1 elastically connected to the main bracket 21; the secondary suspension component 42 is fixed to the outside of the main bracket 21 through the mounting part 213, and an interface for connection with the vehicle body is reserved; the position of the acoustic package lower housing 22 is adjusted so that it is completely in contact with the main bracket 21 and is tightened by the edge screw to form a sealed sound insulation cavity; the outer end of the control harness 12 is passed through the pre-set through hole of the housing and fixed by the first connector 24, and finally the entire air supply device 100 is connected to the vehicle body through the secondary suspension component 42 to complete the installation.

[0041] The air supply device 100 for vehicle air suspension of this utility model includes an air compression assembly 1, a sound insulation housing assembly 2 covering the outside of the air compression assembly 1, an air transmission assembly 3 connected to the air compression assembly 1, and a suspension damping assembly 4 fixed on the sound insulation housing assembly 2. The sound insulation housing assembly 2 includes a main bracket 21, an acoustic lower housing 22 cooperating with the main bracket 21, and a sound insulation liner 23 disposed below the main bracket. The main bracket 21 is made of aluminum alloy, and the acoustic lower housing 22 is made of plastic. The main support 21 of the air supply device 100 for vehicle air suspension of this utility model adopts an aluminum alloy structure, which has a high degree of free mode while meeting the structural strength requirements, and can reduce the transmission of vibration and noise from the compressor during operation to the vehicle interior. The acoustic enclosure 22 adopts a plastic shell structure, which forms a sealed sound insulation system after assembly with the main support, which can reduce operating noise. Moreover, the plastic material reduces the weight of the parts and lowers the cost. Through the two-stage shock absorption structure of the primary suspension component 41 and the secondary suspension component 42, the vibration of the air compressor 11 can be effectively attenuated, reducing the transmission of vibration to the vehicle body, avoiding vehicle body resonance and noise, improving the ride comfort of the vehicle, and enhancing the user experience.

[0042] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An air supply device for a vehicle air suspension, characterized in that, include: The system includes an air compression assembly, a sound insulation housing assembly covering the outside of the air compression assembly, and a suspension damping assembly fixed to the sound insulation housing assembly. The sound insulation housing assembly includes a main bracket and an acoustic lower housing that cooperates with the main bracket. The suspension damping assembly includes a primary suspension member and a secondary suspension member. The primary suspension member connects the air compression assembly to the main bracket, and the secondary suspension member connects the main bracket to the vehicle body.

2. The air supply device for vehicle air suspension according to claim 1, characterized in that, The air compression assembly includes an air compressor, a control harness connected to the air compressor, and a compressor bracket.

3. The air supply device for vehicle air suspension according to claim 2, characterized in that, There are three primary suspension components. One end of the primary suspension component is connected to the compressor bracket, and one end of the other two primary suspension components is connected to the air compressor. The other end of each primary suspension component is connected to the main bracket.

4. The air supply device for a vehicle air suspension according to claim 3, characterized in that, The main bracket has mounting holes, and the primary suspension component passes through the mounting holes and is fixed to the compressor bracket or air compressor.

5. The air supply device for a vehicle air suspension according to claim 2, characterized in that, The main bracket is provided with a mounting part, and the secondary suspension component is fixed to the main bracket at one end through the mounting part and fixed to the vehicle body at the other end.

6. The air supply device for a vehicle air suspension according to claim 2, characterized in that, The main bracket has mounting holes, and the primary suspension component passes through the mounting holes and is fixed to the compressor bracket or the air compressor.

7. The air supply device for a vehicle air suspension according to claim 6, characterized in that, The primary suspension component includes a metal connector, a rubber main spring, an auxiliary spring, and a screw.

8. The air supply device for a vehicle air suspension according to claim 7, characterized in that, The metal connector mates with the mounting hole of the main bracket, the auxiliary spring is nested inside the rubber main spring, and the screw connects to the compressor bracket or the air compressor.

9. The air supply device for a vehicle air suspension according to claim 1, characterized in that, The secondary suspension component has an inner metal ring and an outer rubber layer.

10. The air supply device for a vehicle air suspension according to claim 2, characterized in that, A first connector is provided on one side of the main bracket. The first connector is used to fix the end of the control harness. The first connector is fixed to the main bracket by screws.

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