Air pump assembly, air suspension system and vehicle

Abstract

The utility model discloses an air pump assembly, an air suspension system and a vehicle, and the air pump assembly comprises an air pump, a first pipeline and a second pipeline. A throttling valve is arranged in the first pipeline, a one-way valve is arranged in the second pipeline, and the first pipeline and the second pipeline are communicated with an air pump after being connected. In the embodiment of the invention, the throttle valve and the one-way valve are respectively arranged in the first pipeline and the second pipeline which are connected, so that the air inlet flow and the air exhaust speed can be respectively and independently adjusted, and the air exhaust speed is not influenced after the air inlet speed is adjusted, so that the air inlet noise can be reduced, and meanwhile, the higher air exhaust speed can be realized; therefore, the water blow-drying efficiency in the drying chamber is guaranteed, and corrosion caused by accumulated water in the air pump is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to an air pump assembly, an air suspension system and a vehicle. BACKGROUND

[0002] When the air suspension system in the vehicle is working, air intake and air exhaust need to rely on the air pump, and the air intake and the air exhaust share the same pipeline. However, the air pump in the prior art produces a large noise, especially the air intake noise is particularly obvious. CONTENT OF THE INVENTION

[0003] Therefore, the air pump assembly, the air suspension system and the vehicle are provided to solve the air pump noise problem in the prior art.

[0004] In a first aspect, an air pump assembly is provided, which comprises an air pump, a first pipeline and a second pipeline. A throttle valve is arranged in the first pipeline. A one-way valve is arranged in the second pipeline, and the first pipeline and the second pipeline are connected to communicate with the air pump.

[0005] In this embodiment, the throttle valve and the one-way valve are arranged in the parallel first pipeline and the second pipeline, respectively. When air is being taken in, the air intake flow can be adjusted by controlling the throttle valve, so that the air intake noise can be controlled. When air is being exhausted, the air can be exhausted from the pipeline where the throttle valve and the one-way valve are arranged, so that the exhaust speed will not be affected. At the same time, the exhaust speed can also be adjusted by controlling the throttle valve, so as to take into account both the low exhaust noise and the large exhaust speed. Therefore, the air pump assembly provided in this embodiment can independently adjust the air intake flow and the exhaust speed. After adjusting the air intake flow, the exhaust speed will not be affected, so that the problem of air intake noise can be solved, and at the same time, a large exhaust speed can be achieved to ensure the efficiency of drying the moisture in the air and to avoid water corrosion in the air pump.

[0006] In a possible implementation, the air pump assembly further comprises an air filter, which communicates with the air pump. The first pipeline and the second pipeline can communicate with the air filter after being connected. In an embodiment, the air pump assembly further comprises a third pipeline and a fourth pipeline. One end of the first pipeline and the second pipeline can communicate with the air filter through the third pipeline after being connected, and the other end of the first pipeline and the second pipeline can communicate with the atmosphere through the fourth pipeline. The air filter can filter the particulate impurities such as dust and sand in the air to ensure that sufficient and clean air is input into the air using device through the air pump.

[0007] In a possible implementation, the air pump assembly further comprises a muffler, and the first pipeline and the second pipeline are connected and communicated with the atmosphere through the muffler. The first pipeline and the second pipeline are connected in parallel and can be sequentially communicated with the atmosphere through the fourth pipeline and the muffler. In the air intake process, air can enter the air-consuming device sequentially through the muffler, the fourth pipeline, the throttle valve, the third pipeline, the air filter and the air pump, and the muffler can reduce the air intake noise. In the air exhaust process, part of the gas exhausted by the air-consuming device through the air pump can be sequentially discharged to the atmosphere through the air filter, the third pipeline, the throttle valve, the fourth pipeline and the muffler, and the other part can be sequentially discharged to the atmosphere through the air filter, the third pipeline, the one-way valve, the fourth pipeline and the muffler, so that the exhaust speed can be improved, the efficiency of drying the moisture in the drying agent in the air pump can be improved, and the exhaust noise can be reduced through the muffler.

[0008] In a possible implementation, the air pump assembly further comprises an air filter, and the first pipeline and the second pipeline are connected and communicated with the atmosphere through the air filter. The air pump assembly can comprise a third pipeline and a fourth pipeline, the first pipeline and the second pipeline are connected in parallel and can be communicated with the air pump through the third pipeline, and the first pipeline and the second pipeline are connected in parallel and can be communicated with the air filter through the fourth pipeline, and the air filter can be communicated with the atmosphere. In the air intake process, air in the external environment of the air pump assembly can enter the air-consuming device sequentially through the air filter, the fourth pipeline, the throttle valve, the third pipeline and the air pump, and the air filter can filter the intake air. In the air exhaust process, part of the gas exhausted by the air-consuming device through the air pump can be sequentially discharged to the atmosphere through the third pipeline, the throttle valve, the fourth pipeline and the air filter, and the other part can be sequentially discharged to the atmosphere through the third pipeline, the one-way valve, the fourth pipeline and the air filter.

[0009] In a possible implementation, the air pump assembly further comprises a muffler, the muffler is in communication with the air filter, the first pipeline and the second pipeline are connected and in communication with the air filter, the air filter is in communication with the muffler, and the muffler is in communication with the atmosphere. The air pump assembly further comprises a third pipeline, a fourth pipeline and a fifth pipeline, the first pipeline and the second pipeline are connected and in communication with the air pump through the third pipeline, and in communication with the air filter through the fourth pipeline, the air filter is in communication with the muffler through the fifth pipeline, and the muffler is in communication with the atmosphere. In the air intake process, air can enter the air using device through the muffler, the fifth pipeline, the air filter, the fourth pipeline, the throttle valve, the third pipeline and the air pump in sequence, the air filter can filter the air, and the muffler can reduce the air intake noise. In the air exhaust process, part of the air exhausted by the air using device through the air pump can be discharged to the atmosphere through the third pipeline, the throttle valve, the fourth pipeline, the air filter, the fifth pipeline and the muffler in sequence, and the other part can be discharged to the atmosphere through the third pipeline, the one-way valve, the fourth pipeline, the air filter, the fifth pipeline and the muffler in sequence.

[0010] In a possible implementation, one end of the first pipeline is in communication with the air pump, and the other end of the first pipeline is in communication with the atmosphere. One end of the second pipeline is in communication with the first pipeline and the air pump, and the other end of the second pipeline is in communication with the atmosphere. The first pipeline can be in communication with the second pipeline at a position between the end in communication with the atmosphere and the end in communication with the air pump, and the part of the first pipeline between the second pipeline and the air pump can be used for exhausting air to the second pipeline. In the air intake process, air can enter the air using device through the first pipeline and the air pump in sequence, and the throttle valve on the first pipeline can adjust the air intake flow in the first pipeline, so that the air intake flow in the first pipeline can be adjusted to reduce the air intake noise. In the air exhaust process, the one-way valve is in the on state, part of the air exhausted by the air using device through the air pump can be discharged to the atmosphere through the first pipeline, and the other part of the air can be discharged to the atmosphere through the second pipeline after passing through the part of the first pipeline between the second pipeline and the air pump.

[0011] In a possible implementation, the air pump assembly further comprises an air filter, the air filter being in communication with an end of the first pipeline away from the air pump, and the first pipeline being in communication with the atmosphere through the air filter. The air filter can filter particulate impurities in the air entering the air pump assembly. For example, during the air intake process, the air can enter the air using device through the air filter, the first pipeline and the air pump in sequence, the air filter can filter particulate impurities in the air, and the throttle valve on the first pipeline can adjust the air intake flow in the first pipeline, for example, the air intake flow in the first pipeline can be reduced by controlling the throttle valve to reduce the air intake noise. During the air exhaust process, the one-way valve is in the on state, part of the air exhausted by the air pump can be discharged to the atmosphere through the first pipeline and the air filter in sequence, and the other part of the air can be discharged to the atmosphere through the second pipeline in sequence after passing through the part of the first pipeline between the second pipeline and the air pump, wherein the exhaust speed can be adjusted by controlling the throttle valve on the first pipeline, so as to achieve high exhaust speed and low exhaust noise at the same time.

[0012] In a possible implementation, the air pump assembly further comprises a muffler, the muffler being connected to an end of the second pipeline away from the air pump, and the second pipeline being in communication with the atmosphere through the muffler. During the air intake process, the air can enter the air using device through the air filter, the first pipeline and the air pump in sequence, the air filter can filter particulate impurities in the air, and the throttle valve on the first pipeline can adjust the air intake flow in the first pipeline, for example, the air intake flow in the first pipeline can be reduced by controlling the throttle valve to reduce the air intake noise. During the air exhaust process, the one-way valve is in the on state, part of the air exhausted by the air pump can be discharged to the atmosphere through the first pipeline and the air filter in sequence, and the other part of the air can be discharged to the atmosphere through the second pipeline and the muffler in sequence after passing through the part of the first pipeline between the second pipeline and the air pump, wherein the exhaust speed can be adjusted by controlling the throttle valve on the first pipeline, so as to achieve high exhaust speed and low exhaust noise at the same time, and the muffler can further reduce the noise when the gas is discharged from the second pipeline.

[0013] In a possible implementation, the air pump assembly further comprises an air filter, and the throttle valve is connected to the air filter, and the throttle valve and the air filter are arranged in the first pipeline. The throttle valve can be integrated into the air filter, so that the air filter with the integrated throttle valve is a whole component and can be integrally installed in the first pipeline, thereby facilitating improvement of the integration of the structure. During air intake, air can enter the air using device in sequence through the air filter with the integrated throttle valve and the air pump, and the air filter can filter the air before the air enters the air pump, so as to ensure that the air entering the air pump is clean air without particulate impurities. During air exhaust, the air in the air using device can be exhausted to the atmosphere through the air filter with the integrated throttle valve after passing through the air pump, or can be exhausted to the atmosphere through the one-way valve.

[0014] In a possible implementation, the throttle valve is integrated on the air filter, that is, the throttle valve and the air filter are a whole structure and can be integrally assembled into the air pump assembly, thereby simplifying the structure of the air pump assembly, reducing the number of components, and facilitating improvement of the integration of the air pump assembly.

[0015] In a possible implementation, the throttle valve is integrated on the air filter, that is, the throttle valve and the air filter are a whole structure and can be integrally assembled into the air pump assembly, thereby simplifying the structure of the air pump assembly, reducing the number of components, and facilitating improvement of the integration of the air pump assembly.

[0016] In a possible implementation, the throttle valve is integrated on the air filter, that is, the throttle valve and the air filter are a whole structure and can be integrally assembled into the air pump assembly, thereby simplifying the structure of the air pump assembly, reducing the number of components, and facilitating improvement of the integration of the air pump assembly.

[0017] It should be understood that the foregoing general description and the following detailed description are only exemplary and are not limiting to the application. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1A structural block diagram of a gas pump assembly according to an embodiment of the present application is provided.

[0020] Figure 2 A structural block diagram of a gas pump assembly according to another embodiment of the present application is provided.

[0021] Figure 3 A structural block diagram of a gas pump assembly according to another embodiment of the present application is provided.

[0022] Figure 4 A structural block diagram of a gas pump assembly according to another embodiment of the present application is provided.

[0023] Figure 5 A structural block diagram of a gas pump assembly according to another embodiment of the present application is provided.

[0024] Figure 6 A structural block diagram of a gas pump assembly according to another embodiment of the present application is provided.

[0025] Figure 7 A structural block diagram of a gas pump assembly according to another embodiment of the present application is provided.

[0026] Figure 8 A structural block diagram of a gas pump assembly according to another embodiment of the present application is provided.

[0027] Figure 9 A structural block diagram of a gas pump assembly according to another embodiment of the present application is provided.

[0028] Reference signs:

[0029] 1 - gas pump;

[0030] 2 - air filter;

[0031] 3 - silencer;

[0032] 4a - first pipeline; 4b - second pipeline; 41 - third pipeline; 42 - fourth pipeline; 43 - fifth pipeline;

[0033] 5 - throttle valve;

[0034] 6 - one-way valve;

[0035] 7 - gas using device. DETAILED DESCRIPTION

[0036] In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0037] It should be noted that the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] The terms used in the embodiments of the present application are merely for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0039] It should be understood that the term "and / or" used herein is merely to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0040] In the description of the present application, unless otherwise expressly specified and limited, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" means two or more; the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] The air suspension system is an important part in the vehicle, which can be connected to the wheels of the vehicle to reduce the impact of vibration on the body and the road. The air pump in the air suspension system generally realizes air intake and exhaust through the same pipeline. In the air intake process, the air flow entering the air pump per unit time is too large, which will affect the noise frequency, working load, etc. of the air pump, resulting in larger noise in the air pump and the whole vehicle. In order to reduce the noise during air intake, the inner diameter of the pipeline can be reduced to slow down the flow entering the air pump per unit time during air intake, thereby reducing the noise during air intake. However, after reducing the inner diameter of the pipeline, the exhaust speed will also be affected, and the exhaust speed will be reduced. The air pump has a drying agent, which needs to be blown dry by exhaust after absorbing water, which requires a larger exhaust speed. If the exhaust speed is reduced by reducing the inner diameter of the pipeline, the drying agent in the air pump will be affected, the regeneration effect of the drying agent will be affected, the drying capacity will be greatly reduced, and finally the air pump will be corroded by water accumulation.

[0042] In view of this, in order to solve the problem that the intake flow rate and exhaust speed cannot be adjusted separately when the air pump uses the same pipeline to realize the intake and exhaust, the present application provides an air pump assembly that is applied to the air suspension system of a vehicle.

[0043] An air suspension system may include an air-operating device, which may include, but is not limited to, airbags and air springs. An air pump assembly is connected to the air-operating device, and the air pump assembly can inflate the air-operating device and expel air from it. For example, taking an air spring as the air-operating device, when the air pump assembly inflates the air spring, it increases the air spring's supporting force. When the air spring expels air through the air pump assembly, it decreases the air spring's supporting force.

[0044] Figure 1 This is a structural block diagram of an air pump assembly provided in one embodiment of this application, as shown below. Figure 1 As shown, the air pump assembly provided in this embodiment includes an air pump 1, which can provide power for air intake and exhaust. The air pump 1 can be connected to the atmosphere through a pipeline. The pipeline includes a first pipeline 4a and a second pipeline 4b, wherein a throttle valve 5 is provided in the first pipeline 4a. The throttle valve 5 is a valve that controls the fluid flow rate by changing the throttling cross-section or throttling length, and can be used to regulate the intake air flow rate.

[0045] The second pipeline 4b is equipped with a one-way valve 6, which is also called a check valve or non-return valve. It is used in the pneumatic system to prevent the compressed air from flowing in the opposite direction.

[0046] In this embodiment, the first pipeline 4a and the second pipeline 4b are connected in parallel and then connected to the air pump 1, meaning that the throttle valve 5 and the one-way valve 6 are also connected in parallel. When air needs to be introduced into the air-consuming device 7 through the air pump 1, the one-way valve 6 is in the closed state, and air can only enter the air pump 1 through the throttle valve 5. The intake flow rate can be changed by controlling the throttle valve 5. For example, when the throttling cross-section of the throttle valve 5 is reduced, the flow rate of air entering the air pump 1 per unit time can be reduced, thereby helping to reduce intake noise. When air needs to be discharged from the air-consuming device 7 through the air pump 1, the one-way valve 6 is in the open state. The air in the air-consuming device 7 can be discharged into the atmosphere after passing through the air pump 1, and then further through the throttle valve 5 and the one-way valve 6 respectively. The exhaust speed can be changed by controlling the throttle valve 5, thereby reducing exhaust noise while ensuring the required exhaust speed.

[0047] Therefore, in the embodiment, by arranging the throttle valve 5 and the one-way valve 6 in the first pipeline 4a and the second pipeline 4b in parallel, the air intake flow can be adjusted by controlling the throttle valve 5 during air intake, so that the air intake noise can be controlled. During air exhaust, air can be exhausted from the pipeline where the throttle valve 5 and the one-way valve 6 are arranged, so that the exhaust speed will not be affected. At the same time, the exhaust speed can also be adjusted by controlling the throttle valve 5, so as to balance the low exhaust noise and the large exhaust speed. Therefore, the air pump assembly provided in the embodiment can independently adjust the air intake flow and the exhaust speed. After adjusting the air intake flow, the exhaust speed will not be affected, so that the problem of air intake noise can be solved, and at the same time, the air pump assembly can also have a large exhaust speed, so as to ensure the efficiency of drying the moisture in the air, and avoid water corrosion in the air pump.

[0048] Figure 2 The structural block diagram of the air pump assembly provided in another embodiment of the application is shown in Figure 2 The air pump assembly also includes an air filter 2 which is in communication with the air pump 1. In the embodiment, the first pipeline 4a and the second pipeline 4b can be in communication with the air filter 2 after being connected in parallel. In an embodiment, the air pump assembly also includes a third pipeline 41 and a fourth pipeline 42. One end of the first pipeline 4a and the second pipeline 4b connected in parallel can be in communication with the air filter 2 through the third pipeline 41, and the other end of the first pipeline 4a and the second pipeline 4b connected in parallel can be in communication with the atmosphere through the fourth pipeline 42.

[0049] The air filter 2 can filter the particulate impurities such as dust and sand in the air, so as to ensure that sufficient and clean air is input into the air using device 7 through the air pump 1. For example, during air intake, air can enter the air using device 7 after sequentially passing through the fourth pipeline 42, the throttle valve 5, the third pipeline 41, the air filter 2 and the air pump 1. The air filter 2 can filter the air before the air enters the air pump 1, so as to ensure that the air entering the air pump 1 is clean air without particulate impurities. During air exhaust, the air in the air using device 7 can be exhausted to the atmosphere through the fourth pipeline 42 after sequentially passing through the air pump 1 and the air filter 2. Part of the air can be exhausted to the atmosphere through the fourth pipeline 42 after sequentially passing through the throttle valve 5 and the one-way valve 6.

[0050] The throttle valve 5 and the one-way valve 6 can be integrated into one component, i.e., the throttle valve 5 and the one-way valve 6 can be integrated into a single throttle valve which can realize one-way conduction and adjust the air flow. The single throttle valve has high integration degree and can be installed as a whole in the air pump assembly, so as to simplify the structure of the air pump assembly, reduce the number of components in the air pump assembly, and save space.

[0051] Figure 3 A structural block diagram of an air pump assembly provided in another embodiment of this application is shown below. Figure 3 As shown, the air pump assembly also includes a muffler 3, which can be connected to the fourth pipe 42. That is, the first pipe 4a and the second pipe 4b are connected in parallel and can be connected to the atmosphere through the fourth pipe 42 and the muffler 3 in sequence. During the intake process, air can enter the air-using device 7 after passing through the muffler 3, the fourth pipe 42, the throttle valve 5, the third pipe 41, the air filter 2, and the air pump 1 in sequence. The muffler 3 can reduce intake noise. During the exhaust process, part of the gas discharged from the air-using device 7 through the air pump 1 can be discharged to the atmosphere after passing through the air filter 2, the third pipe 41, the throttle valve 5, the fourth pipe 42, and the muffler 3 in sequence. The other part can be discharged to the atmosphere after passing through the air filter 2, the third pipe 41, the one-way valve 6, the fourth pipe 42, and the muffler 3 in sequence. This can increase the exhaust speed, which is beneficial to improving the efficiency of drying the moisture in the desiccant in the air pump 1. At the same time, the muffler 3 can reduce exhaust noise.

[0052] Figure 4 A structural block diagram of an air pump assembly provided in another embodiment of this application is shown below. Figure 4 As shown, the air pump assembly may include a third pipe 41 and a fourth pipe 42. The first pipe 4a and the second pipe 4b, connected in parallel, can be connected to the air pump 1 via the third pipe 41. Simultaneously, the first pipe 4a and the second pipe 4b, also connected in parallel, can be connected to the air filter 2 via the fourth pipe 42. The air filter 2 can be open to the atmosphere. Figure 3 The difference between the embodiments shown is that, Figure 4 In the illustrated embodiment, the silencer 3 is not provided, and the connection position of the air filter 2 is changed. During the intake process, air from the external environment of the air pump assembly can sequentially pass through the air filter 2, the fourth pipe 42, the throttle valve 5, the third pipe 41, and the air pump 1 before entering the air-consuming device 7. The air filter 2 can filter the intake air. During the exhaust process, a portion of the gas discharged from the air-consuming device 7 through the air pump 1 can sequentially pass through the third pipe 41, the throttle valve 5, the fourth pipe 42, and the air filter 2 before being discharged to the atmosphere, while the other portion can sequentially pass through the third pipe 41, the one-way valve 6, the fourth pipe 42, and the air filter 2 before being discharged to the atmosphere.

[0053] Figure 5 A structural block diagram of an air pump assembly provided in another embodiment of this application is shown below. Figure 5As shown, the air pump assembly comprises an air filter 2 and a muffler 3, and further comprises a third pipeline 41, a fourth pipeline 42 and a fifth pipeline 43. The first pipeline 4a and the second pipeline 4b are connected in parallel, and then connected to the air pump 1 through the third pipeline 41, and connected to the air filter 2 through the fourth pipeline 42. The air filter 2 is connected to the muffler 3 through the fifth pipeline 43, and the muffler 3 can be connected to the atmosphere. With Figure 4 Different from the embodiment shown in the figure, Figure 5 The embodiment shown in the figure is provided with a muffler 3. In the air intake process, air can enter into the air using device 7 after sequentially passing through the muffler 3, the fifth pipeline 43, the air filter 2, the fourth pipeline 42, the throttle valve 5, the third pipeline 41 and the air pump 1. The air filter 2 can filter the air, and the muffler 3 can reduce the air intake noise. In the air exhaust process, part of the air exhausted from the air using device 7 through the air pump 1 can be sequentially discharged into the atmosphere through the third pipeline 41, the throttle valve 5, the fourth pipeline 42, the air filter 2, the fifth pipeline 43 and the muffler 3, and the other part can be sequentially discharged into the atmosphere through the third pipeline 41, the one-way valve 6, the fourth pipeline 42, the air filter 2, the fifth pipeline 43 and the muffler 3.

[0054] Figure 6 The structural block diagram of the air pump assembly provided for another embodiment of the present application is shown in the figure, Figure 6 As shown, the air pump assembly comprises a first pipeline 4a and a second pipeline 4b. One end of the first pipeline 4a is connected to the air pump 1, and the other end of the first pipeline 4a is connected to the atmosphere. One end of the second pipeline 4b is connected to the first pipeline 4a, and the other end of the second pipeline 4b is connected to the atmosphere. That is, Figure 6 In the embodiment shown in the figure, the first pipeline 4a where the throttle valve 5 is located and the second pipeline 4b where the one-way valve 6 is located can be connected to the atmosphere respectively. The position between the end of the first pipeline 4a for connecting to the atmosphere and the end for connecting to the air pump 1 can be connected to the second pipeline 4b, and the part of the first pipeline 4a between the second pipeline 4b and the air pump 1 can be used for exhausting air to the second pipeline 4b.

[0055] For example, during the intake process, air can sequentially pass through the first pipe 4a and the air pump 1 before entering the air-consuming device 7. The throttle valve 5 on the first pipe 4a can regulate the intake airflow in the first pipe 4a, thereby reducing intake noise by adjusting the intake airflow in the first pipe 4a. During the exhaust process, the one-way valve 6 is in the open state. Part of the air discharged by the air-consuming device 7 through the air pump 1 can be discharged to the atmosphere through the first pipe 4a, and the other part of the air can first pass through the section of the first pipe 4a located between the second pipe 4b and the air pump 1, and then be discharged to the atmosphere through the second pipe 4b. Here, by controlling the throttle valve 5 on the first pipe 4a, the exhaust speed can be adjusted, thereby achieving both a high exhaust speed and low exhaust noise. Of course, during the exhaust process, there is no need to adjust the throttle valve 5; exhausting through both the first pipe 4a and the second pipe 4b can ensure a high exhaust speed.

[0056] Figure 7 A structural block diagram of an air pump assembly provided in another embodiment of this application is shown below. Figure 7 As shown, the air pump assembly may include an air filter 2, which is connected to the end of the first pipe 4a away from the air pump 1. The first pipe 4a is connected to the atmosphere through the air filter 2. The air filter 2 can filter particulate impurities in the air entering the air pump assembly. Exemplarily, during the air intake process, air can sequentially pass through the air filter 2, the first pipe 4a, and the air pump 1 before entering the air-using device 7. The air filter 2 can filter particulate impurities in the air, and the throttle valve 5 on the first pipe 4a can regulate the airflow in the first pipe 4a. For example, the airflow in the first pipe 4a can be reduced by controlling the throttle valve 5 to reduce intake noise. During the exhaust process, the one-way valve 6 is in the open state. Part of the air discharged by the air pump 1 through the air device 7 can be discharged to the atmosphere through the first pipeline 4a and the air filter 2 in sequence. The other part of the air can first pass through the part of the first pipeline 4a located between the second pipeline 4b and the air pump 1, and then be discharged to the atmosphere through the second pipeline 4b. The exhaust speed can be adjusted by controlling the throttle valve 5 on the first pipeline 4a, thereby achieving both a high exhaust speed and low exhaust noise.

[0057] Figure 8 A structural block diagram of an air pump assembly provided in another embodiment of this application is shown below. Figure 8As shown, the air pump assembly can further include a muffler 3 connected to the second pipeline 4b, and the second pipeline 4b communicates with the atmosphere through the muffler 3. In the air intake process, air can enter the air using device 7 in sequence through the air filter 2, the first pipeline 4a and the air pump 1, the air filter 2 can filter the particulate impurities in the air, and the throttle valve 5 on the first pipeline 4a can adjust the air intake flow in the first pipeline 4a, for example, the air intake flow in the first pipeline 4a can be reduced by controlling the throttle valve 5 to reduce the air intake noise. In the air exhaust process, the one-way valve 6 is in the on state, and part of the air discharged by the air pump 1 can be discharged to the atmosphere in sequence through the first pipeline 4a and the air filter 2, and the other part of the air can be discharged to the atmosphere in sequence through the second pipeline 4b and the muffler 3, wherein the exhaust speed can be adjusted by controlling the throttle valve 5 on the first pipeline 4a, thereby achieving high exhaust speed and small exhaust noise at the same time, and the muffler 3 can further reduce the noise when the gas is discharged from the second pipeline 4b.

[0058] Figure 9 The structural block diagram of the air pump assembly provided for another embodiment of the present application is shown in Figure 9 As shown, the air pump assembly includes an air filter 2, and the throttle valve 5 is connected to the air filter 2, that is, the throttle valve 5 is integrated into the air filter 2, so that the air filter 2 with the integrated throttle valve 5 is a whole component and can be integrally installed in the first pipeline 4a, thereby facilitating the improvement of the structural integration. In the air intake process, air can enter the air using device 7 in sequence through the air filter 2 integrated with the throttle valve 5 and the air pump 1, and the air filter 2 can filter the air before it enters the air pump 1 to ensure that the air entering the air pump 1 is clean air without particulate impurities. In the air exhaust process, part of the air in the air using device 7 can be discharged to the atmosphere after passing through the air filter 2 integrated with the throttle valve 5 after passing through the air pump 1, and the other part can be discharged to the atmosphere after passing through the one-way valve 6.

[0059] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas pump assembly, characterized by, Comprising: an air pump (1); a first pipe (4a) provided with a throttle valve (5) therein; a second pipe (4b) provided with a one-way valve (6) therein, the first pipe (4a) and the second pipe (4b) being connected to communicate with the air pump (1).

2. The gas pump assembly of claim 1, wherein, Further comprising an air filter (2) communicating with the air pump (1); the first pipe (4a) and the second pipe (4b) being connected to communicate with the air filter (2).

3. The gas pump assembly of claim 1 or 2, wherein, Further comprising a muffler (3), the first pipe (4a) and the second pipe (4b) being connected to communicate with the atmosphere through the muffler (3).

4. The gas pump assembly of claim 1, wherein, Further comprising an air filter (2); the first pipe (4a) and the second pipe (4b) being connected to communicate with the atmosphere through the air filter (2).

5. The gas pump assembly of claim 4, wherein, Further comprising a muffler (3), the muffler (3) communicating with the air filter (2), the first pipe (4a) and the second pipe (4b) being connected to communicate with the air filter (2), the air filter (2) communicating with the muffler (3), the muffler (3) communicating with the atmosphere.

6. The gas pump assembly of claim 1, wherein, One end of the first pipe (4a) communicates with the air pump (1), the other end of the first pipe (4a) communicates with the atmosphere; One end of the second pipe (4b) respectively communicates with the first pipe (4a) and the air pump (1), the other end of the second pipe (4b) communicates with the atmosphere.

7. The gas pump assembly of claim 6, wherein, Further comprising an air filter (2), the air filter (2) communicating with one end of the first pipe (4a) away from the air pump (1), the first pipe (4a) communicating with the atmosphere through the air filter (2).

8. The gas pump assembly of claim 7, wherein, Further comprising a muffler (3), the muffler (3) being connected to one end of the second pipe (4b) away from the air pump (1), the second pipe (4b) communicating with the atmosphere through the muffler (3).

9. The gas pump assembly of claim 1, wherein, Further comprising an air filter (2), the throttle valve (5) being connected to the air filter (2), the throttle valve (5) and the air filter (2) being provided in the first pipe (4a).

10. The gas pump assembly of claim 9, wherein, The throttle valve (5) is integrated on the air filter (2).

11. An air suspension system characterized by, Comprising a gas using device (7) and the air pump assembly according to any one of claims 1-10, the air pump assembly communicating with the gas using device (7) for charging the gas using device (7) with air and for discharging air from the gas using device (7).

12. A vehicle characterized by comprising: Comprising a wheel and the air suspension system according to claim 11, the air suspension system being connected to the wheel.

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