Air suspension air supply system with reduced high frequency noise

Abstract

The utility model discloses a kind of air suspension gas supply systems for reducing high-frequency noise, comprising: the air pump of suspension gas supply;First connecting pipe;Control valve, by the first connecting pipe to connect the connecting port of air pump;Air intake component, set in the first interface of control valve to air pump ventilation;First exhaust pipe, set in the second interface of control valve, and the first exhaust pipe and air intake component are independent of each other;The utility model is provided with first connecting pipe, control valve, air intake component and first exhaust pipe, by air intake and exhaust separated from each other, the use time of air pump is guaranteed, and second exhaust pipe can be led to the outside of suspension system when exhausting, without considering the restriction of arrangement above water line, reduce arrangement difficulty, air intake component has separately added silencer, noise in air intake process can also be effectively reduced.

Description

Technical Field

[0001] This utility model specifically relates to an air suspension air supply system that reduces high-frequency noise. Background Technology

[0002] In modern chassis technology, air suspension is widely used by major OEMs due to its superior comfort, and its adoption has expanded from high-end models to various other vehicle types. The air supply unit is the gas source for the air suspension, and its core components include the air pump (compressor) and air ducts. When the air pump is working, the compressor compresses and pressurizes the intake air before forcing it into the air tank or air spring. Simultaneously, the reciprocating motion of the compressor plunger generates noise, which is transmitted through the air ducts. The noise level increases linearly with the increase in the system's air intake flow rate, contributing significantly to low-order sound pressure levels and noticeably affecting human hearing.

[0003] Existing technologies often use the addition of mufflers to eliminate the aforementioned noise. However, mufflers are relatively large, which means that the humid air blown out by the air pump cannot be completely exchanged with the outside environment. Over time, condensation will form inside the muffler. When the air pump is pumped again, the condensation will be sucked into the air pump, causing damage to the air pump. To address this, we propose an air suspension air supply system that reduces high-frequency noise. Utility Model Content

[0004] The purpose of this invention is to provide an air suspension air supply system that reduces high-frequency noise, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air suspension air supply system for reducing high-frequency noise, comprising:

[0006] An air pump that supplies air to the suspension;

[0007] First connecting pipe;

[0008] The control valve body is connected to the air pump's connection port via the first connecting pipe;

[0009] An air intake assembly is provided at the first interface of the control valve body to supply air to the air pump;

[0010] The first exhaust pipe is located at the second interface of the control valve body, and the first exhaust pipe is independent of the intake assembly, thereby achieving physical separation of the intake and exhaust processes.

[0011] Preferably, the control valve body is a three-way solenoid valve.

[0012] Preferably, the intake assembly includes a second connecting pipe, a filter, and a muffler. The filter is connected to the first interface of the control valve body via the second connecting pipe, and the filter's inlet is connected to a muffler.

[0013] Preferably, a second one-way valve is connected between the filter and the silencer.

[0014] Preferably, the filter has a pressure gauge connected to its interior on one side.

[0015] Preferably, one end of the first exhaust pipe is connected to a first one-way valve, and the output end of the first one-way valve is connected to a second exhaust pipe that can be led out to the outside.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model, by incorporating a first connecting pipe, a control valve body, an air intake assembly, and a first exhaust pipe, avoids the generation and backflow of condensate in the muffler, thus preventing damage to the air pump. The separate air intake and exhaust systems ensure the air pump's operating time. Furthermore, the second exhaust pipe can be extended to the outside of the suspension system during exhaust, eliminating the need to consider restrictions on placement above the wading line and reducing installation complexity. The air intake assembly features a separately added muffler, effectively reducing noise generated by the reciprocating motion of the plunger during air intake, minimizing the impact on human hearing. The entire device has a simple structure and is easy to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] In the diagram: 1. Air pump; 2. First connecting pipe; 3. Control valve body; 4. Second connecting pipe; 5. Filter; 6. Second check valve; 7. Muffler; 8. First check valve; 9. First exhaust pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1 This utility model provides a technical solution: an air suspension air supply system for reducing high-frequency noise, comprising:

[0022] Air pump 1 that supplies air to the suspension;

[0023] First connecting pipe 2;

[0024] The control valve body 3 is connected to the connection port of the air pump 1 via the first connecting pipe 2;

[0025] This design facilitates the connection between the air intake assembly and the air pump 1 during inflation, thus enabling air intake. During backflush, it connects the first exhaust pipe 9 to the air pump 1, preventing the gas containing condensate from being discharged to the outside through the muffler. This avoids the condensate that was backflushed into the muffler during subsequent air intake, which could then enter the air pump 1 and cause damage.

[0026] An air intake assembly is provided at the first interface of the control valve body 3 to supply air to the air pump 1;

[0027] The first exhaust pipe 9 is located at the second interface of the control valve body 3, and the first exhaust pipe 9 is independent of the intake assembly, realizing the physical separation of the intake and exhaust processes.

[0028] This facilitates the separation of intake and exhaust, thereby ensuring the safety of the air pump 1.

[0029] In this embodiment, preferably, the control valve body 3 is a three-way solenoid valve;

[0030] This allows for better control of intake or exhaust air entering different channels.

[0031] In this embodiment, preferably, the air intake assembly includes a second connecting pipe 4, a filter 5 and a muffler 7. The filter 5 is connected to the first interface of the control valve body 3 through the second connecting pipe 4, and the input port of the filter 5 is connected to the muffler 7.

[0032] The muffler 7 facilitates better reduction of gas noise during air inflation, improving the quietness of the air intake and exhaust of the suspension system. Furthermore, by filtering the gas entering the air pump 1, it helps to ensure that the air pump 1 is not affected by contaminated gas and thus not damaged.

[0033] In this embodiment, preferably, a second one-way valve 6 is connected between the filter 5 and the silencer 7;

[0034] This facilitates better unidirectional gas flow and avoids backflow.

[0035] In this embodiment, preferably, the filter 5 has a pressure gauge connected to its interior on one side.

[0036] In this embodiment, preferably, one end of the first exhaust pipe 9 is connected to a first one-way valve 8, and the output end of the first one-way valve 8 is connected to a second exhaust pipe that can be led out to the outside, which facilitates better backflow prevention and reduces gas backflow. At the same time, the second exhaust pipe can be led out of the vehicle without having to consider the problem of being arranged above the wading line.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air suspension air supply system for reducing high-frequency noise, characterized in that, include: An air pump (1) that supplies air to the suspension; First connecting pipe (2); The control valve body (3) is connected to the connection port of the air pump (1) through the first connecting pipe (2); An air intake assembly is provided at the first interface of the control valve body (3) to supply air to the air pump (1); The first exhaust pipe (9) is located at the second interface of the control valve body (3), and the first exhaust pipe (9) is independent of the intake assembly, thereby realizing the physical separation of the intake and exhaust processes.

2. The air suspension air supply system for reducing high-frequency noise according to claim 1, characterized in that: The control valve body (3) is a three-way solenoid valve.

3. The air suspension air supply system for reducing high-frequency noise according to claim 1, characterized in that: The intake assembly includes a second connecting pipe (4), a filter (5) and a muffler (7). The filter (5) is connected to the first interface of the control valve body (3) through the second connecting pipe (4), and the input port of the filter (5) is connected to the muffler (7).

4. An air suspension air supply system for reducing high-frequency noise according to claim 3, characterized in that: A second check valve (6) is connected between the filter (5) and the silencer (7).

5. An air suspension air supply system for reducing high-frequency noise according to claim 3, characterized in that: The filter (5) has a pressure gauge connected to its interior on one side.

6. An air suspension air supply system for reducing high-frequency noise according to claim 1, characterized in that: One end of the first exhaust pipe (9) is connected to a first one-way valve (8), and the output end of the first one-way valve (8) is connected to a second exhaust pipe that can be led out to the outside.

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