Air suspension air supply system and vehicle

Abstract

The invention belongs to the technical field of air supply systems, and particularly discloses an air suspension air supply system and a vehicle. The air suspension air supply system comprises an air filtering dryer, an air pump, a first control valve, an air spring assembly, a second control valve and a third control valve, the air filtering dryer, the air pump, the first control valve and the air spring assembly are sequentially communicated, and two outlets of the second control valve are communicated with an air inlet of the air pump and an air inlet of the air spring assembly respectively. And two outlets of the third control valve are respectively communicated with an air outlet of the air pump and the air filtering dryer. According to the air suspension air supply system, the integration level is improved, and the overall structure is simplified.

Description

Technical Field

[0001] The invention belongs to the technical field of air supply systems, and in particular relates to an air suspension air supply system and a vehicle. Background Art

[0002] With the continuous development of automobile integration and intelligence, automobile functions are becoming more and more abundant. In order to provide a more comfortable driving experience for automobiles, height-adjustable air suspensions have gradually been derived, which can adjust the height of the vehicle body according to driving conditions. The core component of the air suspension - the air supply system provides compressed air for the air suspension. The air intake and air outlet of the air suspension air supply system in the related technology use different pipelines, resulting in poor overall integration and a large number of parts. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides an air suspension air supply system, which is conducive to improving integration and simplifying the overall structure.

[0004] An embodiment of the present invention further provides a vehicle.

[0005] The air suspension air supply system of an embodiment of the present invention includes an air filter dryer, an air pump, a first control valve, an air spring assembly, a second control valve and a third control valve. The air filter dryer, the air pump, the first control valve and the air spring assembly are connected in sequence, the two outlets of the second control valve are respectively connected to the air inlet of the air pump and the air inlet of the air spring assembly, and the two outlets of the third control valve are respectively connected to the air outlet of the air pump and the air filter dryer.

[0006] When the height of the air spring assembly needs to be raised, the first control valve is opened, and the external air is filtered and dried by the air filter dryer, and then transported to the air spring assembly through the air pump, thereby raising the air spring assembly and increasing its stiffness. When the height of the air spring assembly needs to be lowered, the first control valve is closed, and the second and third control valves are opened. The gas of the air spring assembly is transported to the air filter dryer through the air pump and discharged through the air filter dryer. The air intake and exhaust of the air supply system pass through the air filter dryer, and there is no need to set up a special exhaust path, saving parts, thereby improving the overall integration and simplifying the overall structure.

[0007] In this embodiment, the air suspension air supply system further includes a fourth control valve and an air storage tank which are interconnected, and the outlet of the fourth control valve is connected to an air pump.

[0008] In this embodiment, the air suspension air supply system further includes a fifth valve, and two interfaces of the fifth valve are respectively connected to the air storage tank and the inlet of the air pump.

[0009] In this embodiment, the air spring assembly includes an air spring and a sixth control valve that are interconnected. The air spring and the sixth control valve that are interconnected constitute a lifting drive group. The lifting drive assembly is provided with multiple groups, and the sixth control valves of the multiple groups of lifting drive assemblies are all connected to the first control valve.

[0010] In this embodiment, the air suspension air supply system further includes a temperature and pressure sensor, and the temperature and pressure sensor is connected to a pipeline between the first control valve and the sixth control valve.

[0011] In this embodiment, the air suspension air supply system also includes a safety valve, which is arranged on a pipeline connected to the air pump outlet, and the safety valve has a first pressure relief port and a second pressure relief port, the first pressure relief port is connected to the inlet of the air pump, and the second pressure relief port is connected to the air filter.

[0012] In this embodiment, the air suspension air supply system also includes a valve block and an air pipe joint, the air pump, the first control valve, the air spring assembly, the second control valve, the third control valve and the air pipe joint are all arranged on the valve block, and the air pipe joint is connected to the air pump, and the air filter dryer is connected to the air pipe joint through an air pipe.

[0013] In this embodiment, the air filter dryer includes a filter component and a drying component which are connected in sequence and communicated with each other, the filter component is communicated with the external air, an air inlet and outlet nozzle is arranged at one end of the drying component away from the filter component, the air inlet and outlet nozzle is communicated with the air pump, the filter component is used to filter impurities in the air, and the drying component is used to dry the air.

[0014] In this embodiment, the air filter dryer further includes a silencer component, which is connected to the inlet of the filter component, and an end of the silencer component away from the filter component is provided with air inlet and outlet holes, and the silencer component is used to silence and reduce noise of the air.

[0015] The vehicle in the embodiment of the present invention includes the above-mentioned air suspension air supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 1 is a schematic diagram of an air suspension air supply system according to an embodiment of the present invention.

[0017] Figure 2 It is a schematic structural diagram of an air suspension air supply system according to an embodiment of the present invention.

[0018] Figure 3 1 is a perspective view of an air filter dryer according to an embodiment of the present invention.

[0019] Figure 4 2 is a cross-sectional view of an air filter dryer according to an embodiment of the present invention.

[0020] Reference numerals:

[0021] 1. Air filter dryer; 110. Filter component; 111. Filter housing; 112. Filter element; 120. Drying component; 121. Drying housing; 122. Desiccant; 130. Silencing component; 131. Silencing housing; 132. Silencing component; 133. Sealing plate; 140. Inlet and outlet nozzle; 2. Air pump; 3. First control valve; 4. Air spring assembly; 41. Air spring; 42. Sixth control valve; 5. Second control valve; 6. Third control valve; 7. Check valve; 8. Fourth control valve; 9. Air storage tank; 10. Fifth control valve; 11. Temperature and pressure sensor; 12. Safety valve; 13. Valve block; 14. Air pipe joint. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0023] like Figure 1 As shown, the air suspension air supply system in this embodiment includes an air filter dryer 1, an air pump 2, a first control valve 3, an air spring assembly 4, a second control valve 5 and a third control valve 6. The air filter dryer 1, the air pump 2, the first control valve 3 and the air spring assembly 4 are connected in sequence, the two outlets of the second control valve 5 are connected to the air inlet of the air pump 2 and the air inlet of the air spring assembly 4, respectively, and the two outlets of the third control valve 6 are connected to the air outlet of the air pump 2 and the air filter dryer 1, respectively.

[0024] Specifically, if Figure 1 As shown, the air suspension air supply system also includes a one-way valve 7, which is arranged on the pipeline between the air filter dryer 1 and the air pump 2 to prevent gas diversion, which is beneficial to the stable operation of the air pump 2 and improves the working efficiency.

[0025] For example, the first control valve 3, the second control valve 5 and the third control valve 6 are two-position two-way valves, which can control the on-off of the corresponding pipelines.

[0026] When the height of the air spring assembly 4 needs to be raised, the first control valve 3 is opened, and the external air is filtered and dried by the air filter dryer 1, and then transported to the air spring assembly 4 through the air pump 2, so that the air spring assembly 4 is raised and the stiffness is increased. When the height of the air spring assembly 4 needs to be lowered, the first control valve 3 is closed, the second control valve 5 and the third control valve 6 are opened, and the gas of the air spring assembly 4 is transported to the air filter dryer 1 through the air pump 2 and discharged through the air filter dryer 1. The air intake and exhaust of the air supply system pass through the air filter dryer 1, and there is no need to set up a special exhaust path, saving parts, thereby improving the overall integration and simplifying the overall structure.

[0027] In this embodiment, if Figure 1 As shown, the air suspension air supply system further includes a fourth control valve 8 and an air storage tank 9 which are interconnected, and the fourth control valve 8 is connected to the outlet of the air pump 2.

[0028] Specifically, the fourth control valve 8 is connected to the pipeline between the air pump 2 and the first control valve 3, so that the opening and closing of the first control valve 3 will not affect the air inlet and outlet of the air tank 9, and similarly, the opening and closing of the fourth control valve 8 will not affect the air inlet and outlet of the air spring assembly 4.

[0029] For example, the fourth control valve 8 is a two-position two-way valve, which can control the inlet and outlet of the gas storage tank 9.

[0030] It can be understood that by setting up the air storage tank 9, the fluctuation of the output pressure of the air pump 2 can be absorbed, and a continuous and stable gas pressure can be provided to the downstream air spring assembly 4, thereby avoiding pressure instability caused by periodic loading and unloading when the air pump 2 directly supplies air to the air spring assembly 4. In addition, during the non-operating period of the air pump 2, the air storage can store a certain amount of compressed gas for emergency use, such as sudden high gas demand or emergency gas supply when the air pump 2 fails. The fourth control valve 8 is set between the air pump 2 and the air storage tank 9, and the air inlet and outlet of the air storage tank 9 can be flexibly controlled by controlling the on and off of the fourth control valve 8.

[0031] In this embodiment, if Figure 1 As shown, the air suspension air supply system further includes a fifth valve 10, and two interfaces of the fifth valve 10 are connected to the air storage tank 9 and the inlet of the air pump 2 respectively.

[0032] For example, the fourth control valve 8 is a two-position two-way valve, which can control the on-off between the gas storage tank 9 and the air inlet of the air pump 2. Specifically, the fifth control valve 10 is arranged on the pipeline connecting the gas storage tank 9 and the air inlet of the air pump 2.

[0033] It should be noted that, by providing the fifth control valve 10, the air tank 9 and the air inlet of the air pump 2 can be connected. When the fifth control valve 10 connects the air tank 9 and the air pump 2, and the third control valve 6 connects the air pump 2 and the air filter dryer 1, the gas in the air tank 9 can be transported to the air filter dryer 1 through the third control valve 6 by the air pump 2, and the air filter dryer 1 is back-blown to remove moisture or other impurities adsorbed on the air filter dryer 1, restore its moisture absorption capacity, and help to improve the life of the air filter dryer 1.

[0034] In this embodiment, if Figure 1 As shown, the air spring assembly 4 includes an air spring 41 and a sixth control valve 42 that are interconnected. The air spring 41 and the sixth control valve 42 that are interconnected constitute a lifting drive group. There are multiple groups of lifting drive assemblies, and the sixth control valves 42 of the multiple groups of lifting drive assemblies are all connected to the first control valve 3.

[0035] For example, the sixth control valve 42 is a two-position, two-way valve, and the gas can enter and exit the air spring 41 by turning the sixth control valve 42 on and off. Specifically, when the sixth control valve 42 is connected, the gas can enter the corresponding air spring 41, or be discharged from the air spring 41 through the sixth control valve 42.

[0036] In this embodiment, each air spring 41 is connected to the first control valve 3 through a sixth control valve 42, and the working state of each air spring 41 can be flexibly adjusted as needed. For example, when the air spring 41 at a certain position needs to be raised, the sixth control valve 42 corresponding to the air spring 41 can be connected, so that the gas can enter the corresponding air spring 41 through the sixth control valve 42. When the air spring 41 at a certain position does not need to be raised, the corresponding sixth control valve 42 can be disconnected to prevent the gas from entering.

[0037] In this embodiment, if Figure 1 As shown, the air suspension air supply system further includes a temperature and pressure sensor 11 , and the temperature and pressure sensor 11 is connected to a pipeline between the first control valve 3 and the sixth control valve 42 .

[0038] The specific model of the temperature and pressure sensor 11 can be selected by those skilled in the art as needed and will not be described in detail here.

[0039] It can be understood that by setting up the temperature and pressure sensor 11, it is convenient to monitor the temperature and pressure of the pipeline in the system in real time. The temperature and pressure information obtained by the temperature and pressure sensor 11 can be used to determine whether the system is working normally, so as to make timely adjustments when the system is not working properly.

[0040] In this embodiment, if Figure 1As shown, the air suspension air supply system also includes a safety valve 12, which is arranged on a pipeline connected to the outlet of the air pump 2, and the safety valve 12 has a first pressure relief port and a second pressure relief port, the first pressure relief port is connected to the inlet of the air pump 2, and the second pressure relief port is connected to the air filter.

[0041] It can be understood that by setting the safety valve 12, when the pressure in the system abnormally rises and exceeds the set safety value, the safety valve 12 can automatically open to release part of the gas to ensure that the system pressure does not exceed the limit, stabilize the pressure in the system, and thus facilitate stable operation of the system.

[0042] In this embodiment, if Figure 1 and Figure 2 As shown, the air suspension air supply system also includes a valve block 13 and an air pipe connector 14, the air pump 2, the first control valve 3, the air spring assembly 4, the second control valve 5, the third control valve 6 and the air pipe connector 14 are all arranged on the valve block 13, and the air pipe connector 14 is connected to the air pump 2, and the air filter dryer 1 is detachably connected to the air pipe connector 14 through the air pipe.

[0043] It can be understood that by arranging the pump, the first control valve 3, the air spring assembly 4, the second control valve 5, the third control valve 6 and the air pipe connector 14 on the valve block 13, it is beneficial to improve the overall integration and make the overall structure more compact. The air filter dryer 1 is detachably connected to the air pipe connector 14 through the air pipe, which can facilitate the installation and disassembly of the air filter, thereby facilitating the maintenance or replacement of the air filter.

[0044] In this embodiment, if Figures 2 to 4 As shown, the air filter dryer 1 includes a filter component 110 and a drying component 120 which are connected in sequence and communicated with each other. The filter component 110 is communicated with the external air. An air inlet and outlet nozzle 140 is arranged at one end of the drying component 120 away from the filter component 110. The air inlet and outlet nozzle 140 is communicated with the air pump 2. The filter component 110 is used to filter impurities from the air, and the drying component 120 is used to dry the air.

[0045] Specifically, Figure 3 and Figure 4As shown, the filter component 110 includes a filter housing 111 and a filter element 112. The filter housing 111 has a filter accommodating chamber with openings at both ends, and the filter element 112 is arranged in the filter housing 111. The drying component 120 includes a drying housing 121 and a desiccant 122. The air inlet and outlet nozzles 140 are arranged in the drying housing 121. The drying housing 121 has a drying accommodating chamber, and the desiccant 122 is arranged in the drying accommodating chamber. One of the two opposite ends of the filter housing 111 and the drying housing 121 has a first connecting groove, and the other has a first plug-in portion. The first plug-in portion is plugged into the first connecting groove to facilitate the connection between the filter component 110 and the drying component 120.

[0046] It can be understood that the air filter dryer 1 includes a filter component 110 and a drying component 120. The external air is filtered for impurities through the filter component 110. After the air is dried by the drying component 120, it is supplied to the air pump 2 through the air inlet and outlet nozzles 140, and is transported to the air supply system through the air pump 2. At the same time, the pure dry gas in the air supply system can enter the air filter dryer 1 through the air inlet and outlet nozzles 140, and then be discharged through the drying component 120 and the filter component 110 in turn. In this process, the moisture in the desiccant 122 can be taken away by the gas backflushing function, thereby increasing the service life of the desiccant 122, and some impurities in the filter element 112 can also be taken away, thereby increasing the service life of the filter element 112.

[0047] In this embodiment, if Figure 3 and Figure 4 As shown, the air filter dryer 1 further includes a silencer component 130, which is connected to the inlet of the filter component 110, and an end of the silencer component 130 away from the filter component 110 is provided with an inlet and outlet hole, and the silencer component 130 is used to silence and reduce noise of the air.

[0048] Specifically, the silencer component 130 includes a silencer shell 131, a silencer 132, and a sealing plate 133. The silencer shell 131 has a silencer accommodating chamber with an opening at one end, and a plurality of air inlet and outlet holes are arranged on an end surface of the silencer shell 131, and the air inlet and outlet holes are far away from the opening of the silencer accommodating chamber. The silencer 132 is arranged in the silencer accommodating chamber, and the sealing plate 133 is fixedly arranged at the opening of the silencer accommodating chamber and is located at the connection between the silencer component 130 and the filter component 110, so as to separate the silencer component 130 from the filter component 110, and a plurality of first flow holes are arranged on the sealing plate 133 to ensure the gas circulation between the silencer component 130 and the filter component 110. At the same time, the fixed sealing plate 133 is used to squeeze and fix the silencer 132 in the silencer shell 131. The positions of the inlet and outlet holes correspond to the positions of the first flow holes, and are respectively located at the two ends of the muffler housing 131, so that the gas entering the muffler housing 131 must pass through the muffler 132, thereby ensuring the noise reduction effect of the muffler 130. One of the two opposite ends of the muffler 130 and the filter 110 has a second connection groove, and the other has a second plug-in portion, and the second plug-in portion is plugged into the second connection groove to facilitate the connection between the filter 110 and the muffler 130.

[0049] Furthermore, the filter component 110 also includes a two-way valve, which is arranged at one end of the filter housing chamber close to the silencer component, and the inner cavity of the filter element 112 is connected to the silencer housing chamber through the two-way valve, ensuring that the desiccant 122 is isolated from the air in the non-working state, and can also meet the opening of the air path between the silencer component 130 and the filter component 110 during air intake and exhaust, thereby ensuring gas circulation between the three parts of the air filter dryer.

[0050] It can be understood that by providing the silencer component 130, the air can be silenced and the noise can be reduced, thereby reducing the noise during the intake or exhaust of the air supply system, and integrating the silencer component 130, the filter component 110 and the drying component 120 is conducive to making the overall structure more compact.

[0051] In the air suspension filter system of this embodiment, when the air tank 9 needs to be inflated, the fourth control valve 8 is opened, the air pump 2 is operated, and the air pump 2 sucks in the external air through the air filter dryer 1 and pressurizes it and then delivers it to the air tank 9 to replenish the air in the air tank 9.

[0052] When the air spring 41 needs to be raised, the first control valve 3, the fifth control valve 10 and the sixth control valve 42 are opened, and the air in the air tank 9 enters the air spring 41 through the fifth control valve 10, the air pump 2, the first control valve 3 and the sixth control valve 42. The air pump 2 is in operation to supply air and pressurize the air spring 41.

[0053] When the air filter dryer 1 needs to be back-blown, the fifth control valve 10 and the third control valve 6 are opened, and the gas in the air storage tank 9 passes through the fifth control valve 10 and is pressurized by the air pump 2, then is transported to the air filter dryer 1 through the third control valve 6 and is discharged through the air filter dryer 1.

[0054] When the air spring 41 needs to be lowered, the sixth control valve 42, the second control valve 5 and the third control valve 6 are opened, and the gas in the air spring 41 is discharged from the air filter dryer 1 after passing through the sixth control valve 42, the second control valve 5, the air pump 2 and the third control valve 6. The air pressure in the air spring 41 drops, so that its height can be reduced.

[0055] The vehicle of the present invention comprises the above-mentioned air suspension air supply system.

[0056] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An air suspension air supply system, characterized in that: It includes an air filter dryer, an air pump, a first control valve, an air spring assembly, a second control valve and a third control valve. The air filter dryer, the air pump, the first control valve and the air spring assembly are connected in sequence. The two outlets of the second control valve are respectively connected to the air inlet of the air pump and the air inlet of the air spring assembly. The two outlets of the third control valve are respectively connected to the air outlet of the air pump and the air filter dryer.

2. The air suspension air supply system according to claim 1, characterized in that: It also includes a fourth control valve and an air storage tank which are interconnected, and the outlet of the fourth control valve is connected to the air pump.

3. The air suspension air supply system according to claim 2, characterized in that: It also includes a fifth valve, and two interfaces of the fifth valve are respectively connected to the inlet of the gas storage tank and the inlet of the air pump.

4. The air suspension air supply system according to claim 1, characterized in that: The air spring assembly includes an air spring and a sixth control valve that are interconnected. The air spring and the sixth control valve that are interconnected constitute a lifting drive group. The lifting drive assembly is provided with multiple groups, and the sixth control valves of the multiple groups of lifting drive assemblies are all connected to the first control valve.

5. The air suspension air supply system according to claim 4, characterized in that: It also includes a temperature and pressure sensor, which is connected to a pipeline between the first control valve and the sixth control valve.

6. The air suspension air supply system according to claim 1, characterized in that: It also includes a safety valve, which is arranged on a pipeline connected to the air pump outlet, and the safety valve has a first pressure relief port and a second pressure relief port, the first pressure relief port is connected to the inlet of the air pump, and the second pressure relief port is connected to the air filter.

7. The air suspension air supply system according to claim 1, characterized in that: It also includes a valve block and an air pipe joint. The air pump, the first control valve, the air spring assembly, the second control valve, the third control valve and the air pipe joint are all arranged on the valve block, and the air pipe joint is connected to the air pump, and the air filter dryer is connected to the air pipe joint through an air pipe.

8. The air suspension air supply system according to any one of claims 1 to 7, characterized in that: The air filter dryer includes a filter component and a drying component which are connected in sequence and communicated with each other, the filter component is communicated with external air, an air inlet and outlet nozzle is arranged at one end of the drying component away from the filter component, the air inlet and outlet nozzle is communicated with the air pump, the filter component is used to filter impurities from the air, and the drying component is used to dry the air.

9. The air suspension air supply system according to claim 8, characterized in that: The air filter dryer further comprises a silencer component, which is communicated with the inlet of the filter component, and an end of the silencer component away from the filter component is provided with an inlet and outlet hole, and the silencer component is used for silencing and reducing the noise of the air.

10. A vehicle, characterized in that: The invention comprises the air suspension air supply system according to any one of claims 1 to 9.

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