Air storage device of air suspension

Abstract

The utility model provides an air storage device of an air suspension, and belongs to the technical field of air suspensions. The air suspension air storage device comprises an air storage tank, the interior of the air storage tank is axially divided into a plurality of air chambers, an air inlet and an air outlet are formed in the air chamber at one end, an electromagnetic valve is arranged between every two adjacent air chambers, the air inlet is communicated with an external air pump, and the air outlet is communicated with an external air bag. The application has the following effects: when the pressure of the gas storage tank reaches the lower limit, the gas pump only pumps gas to one of the gas chambers through the partition action of the electromagnetic valve, and the volume of the single gas chamber is far smaller than that of the whole gas storage tank, so that the pressure of the gas chamber can be quickly increased by pumping the same gas; therefore, the problem that the control system limits the suspension due to the fact that the pressure enters the lower limit is solved, and the performance of the air suspension is improved in disguised mode.

Description

Technical Field

[0001] This application relates to the field of air suspension technology, and more specifically, to an air suspension air storage device. Background Technology

[0002] The air spring inflation system is a crucial component for ensuring the stable operation of a vehicle's suspension system. It mainly consists of an air pump, an air tank, a control valve, and connecting pipes. The air pump, as the core component, is responsible for drawing air from the outside, compressing it, and delivering it to the air tank for storage. The air tank provides a stable air source for subsequent inflation of the air springs, while the control valve precisely controls the airflow and its magnitude.

[0003] When the air pressure inside the air tank reaches the lower limit, in order to ensure the normal operation of the air suspension system and to prevent the system from malfunctioning due to excessively low pressure, the control system will restrict the operation of the air suspension. Therefore, this air storage method affects some of the suspension performance. Utility Model Content

[0004] To overcome the above deficiencies, this application provides an air suspension air storage device, which aims to improve the problems mentioned in the background art.

[0005] This application provides an air suspension air storage device, including an air tank, which is axially divided into several air chambers. An air inlet and an air outlet are provided on one end of the air chamber. A solenoid valve is provided between adjacent air chambers. The air inlet is connected to an external air pump, and the air outlet is connected to an external airbag.

[0006] In one specific implementation, the air chambers are divided into three compartments arranged in order of high, medium and low pressure, with the air inlet located on the high-pressure compartment.

[0007] In the above process, the air pump supplies air to the high-pressure air chamber through the air inlet, and then the high-pressure air chamber supplies air to the medium-pressure air chamber through the solenoid valve, and the medium-pressure air chamber supplies air to the low-pressure air chamber through the solenoid valve.

[0008] In one specific implementation, a pressure sensor is installed on each air chamber.

[0009] In the above implementation process, pressure sensors are used to sense the pressure in their respective air chambers, thereby controlling the operation of solenoid valves and air pumps.

[0010] In one specific implementation, each air chamber has a different wall thickness depending on the internal pressure.

[0011] In the above implementation process, the pressure of each air chamber is different, and the different wall thicknesses help to reduce costs.

[0012] In one specific implementation, each air chamber is provided with an air outlet, and the three air outlets are connected to a three-inlet-one-outlet reversing valve, the outlet of which is connected to an external airbag.

[0013] In the above process, all three air chambers can be supplied with air sequentially through reversing valves. This ensures that the last air chamber always maintains a higher pressure. Specifically, when the air tank is full of air, the low-pressure air chamber is supplied with air first. When the low-pressure air chamber reaches its lower pressure limit, the corresponding solenoid valve closes, and air is supplied through the medium-pressure air chamber. When the medium-pressure air chamber reaches its lower pressure limit, the corresponding solenoid valve closes, and air is supplied through the high-pressure air chamber. At the same time, the air pump starts pumping air into the high-pressure air chamber. Since the volume of the high-pressure air chamber is much smaller than the entire air tank, pumping in the same amount of gas can make the pressure in the high-pressure air chamber rise rapidly, thereby alleviating the pressure drop to the lower limit that would cause the control system to restrict the suspension. When the pressure reaches the upper limit of the high-pressure air chamber, the two solenoid valves are opened sequentially to supply air to all air chambers. That is, when the medium-pressure air chamber reaches its upper limit, air is supplied to the low-pressure air chamber.

[0014] In one specific implementation, a constant pressure valve is connected in series to each of the air outlets.

[0015] In the above process, since the pressure of each air chamber is different, a constant pressure valve is used to ensure that the output air pressure is the same, thereby reducing the impact on the airbag.

[0016] In one specific implementation, a bracket is fixedly connected to the gas storage tank.

[0017] In the above implementation process, the bracket is used to fix the gas tank to the vehicle frame.

[0018] In one specific implementation, both the reversing valve and the solenoid valve are fixedly connected to the bracket.

[0019] In the above implementation process, vibration is easily generated due to the switching action of the solenoid valve and the reversing valve. Fixing them together with a bracket can reduce the damage of vibration to the structure.

[0020] Compared with the prior art, the beneficial effects of this application are: when the pressure of the air tank reaches the lower limit, the air pump only pumps air to one of the air chambers through the isolation action of the solenoid valve. Since the volume of a single air chamber is much smaller than that of the entire air tank, pumping in the same amount of gas can make the pressure of this air chamber rise rapidly, thereby alleviating the problem that the control system restricts the suspension when the pressure reaches the lower limit, and indirectly improving the performance of the air suspension. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the air suspension air storage device provided in the embodiments of this application;

[0023] Figure 2 A schematic diagram illustrating the connection relationship between the air outlet and the reversing valve provided for an embodiment of this application;

[0024] Figure 3 A schematic cross-sectional view of the gas storage tank provided for an embodiment of this application.

[0025] In the diagram: 10-Gas tank; 20-Gas inlet; 30-Gas outlet; 40-Solenoid valve; 50-Pressure sensor; 60-Reversing valve; 70-Constant pressure valve; 80-Bracket. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0027] Please see Figures 1-3 This application provides an air suspension air storage device, including an air tank 10. The air tank 10 is axially divided into several air chambers. An air inlet 20 and an air outlet 30 are provided on one end of each air chamber. A solenoid valve 40 is provided between adjacent air chambers. The air inlet 20 is connected to an external air pump, and the air outlet 30 is connected to an external airbag. When the pressure in the air tank 10 reaches its lower limit, the solenoid valve 40 isolates the air pump, causing it to pump air into only one air chamber. Since the volume of a single air chamber is much smaller than the entire air tank 10, pumping in the same amount of gas can rapidly increase the pressure in that chamber, thereby alleviating the problem of the control system restricting the suspension when the pressure reaches the lower limit, and indirectly improving the performance of the air suspension.

[0028] Please see Figures 1-3 The system is divided into three chambers arranged in order of high, medium, and low pressure, with the air inlet 20 located on the high-pressure chamber. The air pump supplies air to the high-pressure chamber through the air inlet 20, and then the high-pressure chamber supplies air to the medium-pressure chamber through the solenoid valve 40, which in turn supplies air to the low-pressure chamber through the solenoid valve 40.

[0029] Please see Figures 1-3 Each air chamber is equipped with a pressure sensor 50. The pressure sensor 50 is used to sense the pressure in its respective air chamber, thereby controlling the operation of the solenoid valve 40 and the air pump.

[0030] Please see Figures 1-3 Each chamber has a different wall thickness depending on its internal pressure. The varying pressure in each chamber and the different wall thicknesses help reduce costs.

[0031] Please see Figures 1-3 Each air chamber is equipped with an air outlet 30. Three air outlets 30 are connected to a three-inlet, one-outlet reversing valve 60. The outlet of the reversing valve 60 is connected to an external airbag. All three air chambers can be inflated through the reversing valve 60. Generally, when the air tank 10 is sufficiently filled, the low-pressure air chamber is inflated first. When the low-pressure air chamber reaches its lower pressure limit, the corresponding solenoid valve 40 closes, and air is supplied through the medium-pressure air chamber. When the medium-pressure air chamber reaches its lower pressure limit, the corresponding solenoid valve 40 closes, and air is supplied through the high-pressure air chamber. Simultaneously, the air pump begins pumping air into the high-pressure air chamber. Because the volume of the high-pressure air chamber is much smaller than the entire air tank 10, pumping in the same amount of gas allows the pressure in the high-pressure air chamber to rise rapidly, thus alleviating the problem of the control system restricting the suspension when the pressure reaches the lower limit. When the pressure reaches the upper limit of the high-pressure air chamber, the two solenoid valves 40 are opened sequentially to supply air to all air chambers; that is, when the medium-pressure air chamber reaches its upper limit, air is then supplied to the low-pressure air chamber.

[0032] Please see Figures 1-3 Each air outlet 30 is connected in series with a constant pressure valve 70. Since the pressure in each air chamber is different, the constant pressure valve 70 ensures that the output air pressure is the same, reducing the impact on the airbag.

[0033] Please see Figures 1-3 A bracket 80 is fixedly connected to the gas tank 10. The bracket 80 is used to fix the gas tank 10 to the vehicle frame.

[0034] Please see Figures 1-3 Both the directional valve 60 and the solenoid valve 40 are fixedly connected to the bracket 80. Since the solenoid valve 40 and the directional valve 60 are prone to vibration due to their switching action, fixing them together with the bracket 80 reduces the damage to the structure caused by vibration.

[0035] The working principle of this air suspension air storage device is as follows: When the air tank 10 is sufficiently filled with air, the low-pressure chamber is supplied with air first. When the low-pressure chamber reaches its lower pressure limit, the corresponding solenoid valve 40 closes, and air is supplied through the medium-pressure chamber instead. When the medium-pressure chamber reaches its lower pressure limit, the corresponding solenoid valve 40 closes, and air is supplied through the high-pressure chamber instead. At the same time, the air pump starts pumping air into the high-pressure chamber. Since the volume of the high-pressure chamber is much smaller than the entire air tank 10, pumping in the same amount of gas can cause the pressure in the high-pressure chamber to rise rapidly, thereby alleviating the problem of the control system limiting the suspension when the pressure reaches the lower limit. To address the issue of pressure reaching the upper limit of the high-pressure chamber, two solenoid valves 40 are opened sequentially to supply air to all chambers. In other words, when the medium-pressure chamber reaches its upper limit, air is supplied to the low-pressure chamber. In summary, when the pressure in the air tank 10 reaches its lower limit, the air pump only pumps air to one chamber through the isolation effect of the solenoid valve 40. Since the volume of a single chamber is much smaller than that of the entire air tank 10, pumping in the same amount of gas can rapidly increase the pressure in that chamber, thereby alleviating the problem of the control system restricting the suspension due to the pressure reaching the lower limit, and indirectly improving the performance of the air suspension.

[0036] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, improvements, or equivalent substitutions made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. An air suspension gas storage device, characterized by, The utility model relates to a gas storage tank, which comprises a gas storage tank (10) divided into several gas chambers axially, a gas inlet (20) and a gas outlet (30) arranged on one end of the gas chamber, an electromagnetic valve (40) arranged between adjacent gas chambers, the gas inlet (20) being communicated with an external air pump, and the gas outlet (30) being communicated with an external air bag.

2. An air suspension gas reservoir as claimed in claim 1, wherein The three gas chambers are arranged in sequence from high pressure to low pressure.

3. An air suspension gas reservoir as claimed in claim 2, wherein A pressure sensor (50) is arranged on each gas chamber.

4. An air suspension gas reservoir device according to claim 3, wherein Each gas chamber has a different wall thickness according to the internal pressure.

5. An air suspension gas reservoir device according to claim 4, wherein Each gas chamber is provided with the gas outlet (30), three gas outlets (30) are communicated with a three-in-one-out reversing valve (60), the outlet of the reversing valve (60) is communicated with an external air bag.

6. An air suspension gas reservoir device according to claim 5, wherein A constant pressure valve (70) is connected in series with each gas outlet (30).

7. An air suspension gas reservoir device according to claim 6, wherein The gas storage tank (10) is fixedly connected with a bracket (80).

8. An air suspension gas reservoir device according to claim 7, wherein The reversing valve (60) and the electromagnetic valve (40) are fixedly connected with the bracket (80).

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