Mechanical noise reduction air compressor

Abstract

The utility model discloses a mechanical type noise reduction air compressor relates to air compressor, solved the technical problem of the air pump of existing air compressor and the big noise of pumping. It includes air inlet chamber, compression chamber and exhaust chamber, still includes first air inlet, second air inlet, exhaust cavity, first noise reduction structure, second noise reduction structure, third noise reduction structure and fourth noise reduction structure, and first air inlet and second air inlet communicate with external gas source, and first air inlet is connected with air inlet chamber through first noise reduction structure, and the second noise reduction structure is established between air inlet chamber and compression chamber, and the third noise reduction structure is established between compression chamber and exhaust chamber, and exhaust chamber is connected with exhaust cavity through fourth noise reduction structure, and exhaust cavity is connected with braking system and working device. The utility model reduces the noise of air compressor through multistage noise reduction.

Description

Technical Field

[0001] This utility model relates to air compressors, and more specifically, to a mechanical noise-reducing air compressor. Background Technology

[0002] Air compressors are crucial components in automobiles, driving brake and clutch calipers to control braking; they also utilize compressed air for water spray in brake calipers to cool the brake drums; and they are the heart of the automotive air conditioning system, transforming the refrigerant from a gaseous to a liquid state for condensation and cooling. As a vital component in various vehicles, including automobiles, construction vehicles, and agricultural vehicles, air compressors have a wide range of applications and diverse design layouts. However, existing air compressors often suffer from significant pumping noise. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a mechanical noise-reducing air compressor that addresses the shortcomings of existing technologies and solves the technical problem of excessive air pump noise in existing air compressors.

[0004] The present invention discloses a mechanical noise-reducing air compressor, which includes an intake chamber, a compression chamber, and an exhaust chamber. It also includes a first intake port, a second intake port, an exhaust chamber, a first noise reduction structure, a second noise reduction structure, a third noise reduction structure, and a fourth noise reduction structure. The first and second intake ports are connected to an external air source. The first intake port is connected to the intake chamber through the first noise reduction structure. A second noise reduction structure is provided between the intake chamber and the compression chamber. A third noise reduction structure is provided between the compression chamber and the exhaust chamber. The exhaust chamber is connected to the exhaust chamber through the fourth noise reduction structure. The exhaust chamber is connected to a braking system and a working device.

[0005] With further improvements, the first noise reduction structure includes a first air intake duct, a second air intake duct, and an air intake resonant cavity. The first air intake port is connected to one end of the first air intake duct, and the other end of the first air intake duct is connected to the air intake resonant cavity and the air intake chamber, respectively. The second air intake port is connected to one end of the second air intake duct, and the other end of the second air intake duct is connected to the air intake resonant cavity and the air intake chamber, respectively. The air intake resonant cavity is connected to the air intake chamber through a pipe.

[0006] Furthermore, the second noise reduction structure is an intake valve plate.

[0007] Furthermore, the third noise reduction structure is an exhaust valve plate.

[0008] Furthermore, the fourth noise reduction structure includes a first exhaust duct, a second exhaust duct, and an exhaust resonant cavity. One end of the first exhaust duct is connected to the exhaust chamber, and the other end of the first exhaust duct is connected to the exhaust resonant cavity and the exhaust chamber, respectively. One end of the second exhaust duct is connected to the exhaust chamber, and the other end of the second exhaust duct is connected to the exhaust resonant cavity and the exhaust chamber, respectively. The exhaust resonant cavity is connected to the exhaust chamber through a pipe.

[0009] Furthermore, both the first and second air inlets are connected to an external air source via air filters.

[0010] Furthermore, the exhaust chamber is connected to the braking system and the working device via a condenser, a dryer, and an air tank connected in sequence.

[0011] Beneficial effects

[0012] The advantages of this utility model are:

[0013] This utility model includes a first air inlet, a second air inlet, an exhaust chamber, a first noise reduction structure, a second noise reduction structure, a third noise reduction structure, and a fourth noise reduction structure. The first and second air inlets are connected to an external air source. The first air inlet is connected to the intake chamber through the first noise reduction structure. The intake chamber is connected to the compression chamber through the second noise reduction structure. The compression chamber is connected to the exhaust chamber through the third noise reduction structure. The exhaust chamber is connected to the exhaust chamber through the fourth noise reduction structure. The exhaust chamber is connected to the braking system and the working device. Through multi-stage noise reduction inside the air compressor, the noise of the air compressor is ultimately reduced. Attached Figure Description

[0014] Figure 1 A schematic diagram of the installation of an existing air compressor;

[0015] Figure 2 This is a schematic diagram of the mechanical noise-reducing air compressor of this utility model.

[0016] Among them: 1-Cylinder head cover, 2-Exhaust pipe, 3-Cylinder head, 4-Air compressor, 5-Cylinder block, 6-Gear chamber, 7-Oil pan, 8-Intake chamber, 9-Compression chamber, 10-Exhaust chamber, 11-First intake port, 12-Second intake port, 13-Exhaust chamber, 14-First intake passage, 15-Second intake passage, 16-Intake resonant cavity, 17-Intake valve plate, 18-Exhaust valve plate, 19-First exhaust passage, 20-Second exhaust passage, 21-Exhaust resonant cavity, 22-Air filter, 23-Condenser, 24-Dryer, 25-Air tank, 26-Brake system and working device. Detailed Implementation

[0017] The present invention will be further described below with reference to embodiments, but this does not constitute any limitation on the present invention. Any limited modifications made by any person within the scope of the claims of the present invention are still within the scope of the claims of the present invention.

[0018] See Figure 2 This utility model discloses a mechanical noise-reducing air compressor, which includes an intake chamber 8, a compression chamber 9, and an exhaust chamber 10. The compression chamber 9 is the location for compressing gas in the air compressor. It also includes a first intake port 11, a second intake port 12, an exhaust chamber 13, a first noise reduction structure, a second noise reduction structure, a third noise reduction structure, and a fourth noise reduction structure. The first intake port 11 and the second intake port 12 are connected to an external air source. The first intake port 11 is connected to the intake chamber 8 through the first noise reduction structure. A second noise reduction structure is provided between the intake chamber 8 and the compression chamber 9. A third noise reduction structure is provided between the compression chamber 9 and the exhaust chamber 10. The exhaust chamber 10 is connected to the exhaust chamber 13 through the fourth noise reduction structure. The exhaust chamber 13 is connected to a braking system and a working device 26.

[0019] The first noise reduction structure includes a first air intake duct 14, a second air intake duct 15, and an air intake resonant cavity 16. The first air intake port 11 is connected to one end of the first air intake duct 14, and the other end of the first air intake duct 14 is connected to the air intake resonant cavity 16 and the air intake chamber 8, respectively. The second air intake port 12 is connected to one end of the second air intake duct 15, and the other end of the second air intake duct 15 is connected to the air intake resonant cavity 16 and the air intake chamber 8, respectively. The air intake resonant cavity 16 is connected to the air intake chamber 8 through a pipe.

[0020] Approximately 30%-50% of the air enters the intake resonant cavity 16, while the remaining proportion enters the intake chamber 8 directly. The resonant cavity operates on the principle of sound wave reflection and interference, altering the propagation characteristics of sound waves and hindering their outward propagation. Certain frequencies of sound waves from the returning airflow cancel each other out due to their opposite phase, thus achieving noise reduction. In this state, the sound of the intake airflow is reduced within the intake resonant cavity 16.

[0021] The second noise reduction structure is the intake valve plate 17. The intake valve plate 17 is an intake valve plate with a composite layer. The intake airflow enters the compression chamber 9 through the intake valve plate 17 with the composite layer for compression. The composite layer adopts a special process, which can reduce the slapping noise of the stainless steel valve plate when it opens and closes, thus achieving the second stage of noise reduction.

[0022] The third noise reduction structure is the exhaust valve plate 18. The exhaust valve plate 18 is an exhaust valve plate with a composite layer. The compressed gas from the compression chamber 9 enters the exhaust chamber 10 through the composite layer exhaust valve plate. The composite layer adopts a special process, which can reduce the slapping noise of the stainless steel valve plate when it opens and closes compared to the stainless steel valve plate, thus achieving the third level of noise reduction.

[0023] The fourth noise reduction structure includes a first exhaust duct 19, a second exhaust duct 20, and an exhaust resonant cavity 21. One end of the first exhaust duct 19 is connected to the exhaust chamber 10, and the other end of the first exhaust duct 19 is connected to the exhaust resonant cavity 21 and the exhaust chamber 13, respectively. One end of the second exhaust duct 20 is connected to the exhaust chamber 10, and the other end of the second exhaust duct 20 is connected to the exhaust resonant cavity 21 and the exhaust chamber 13, respectively. The exhaust resonant cavity 21 is connected to the exhaust chamber 13 through a pipe.

[0024] Similar to the principle of the intake resonant cavity 16 described above, approximately 30%-50% of the compressed gas enters the exhaust resonant cavity 21, while the remaining proportion directly enters the exhaust cavity 13. The resonant cavity operates by utilizing the reflection and interference effects of sound waves to alter their propagation characteristics and impede the outward propagation of sound energy. Certain frequencies of sound waves from the returning airflow cancel each other out due to their opposite phase, thus achieving noise reduction. In the exhaust resonant cavity 21, the sound of the exhaust airflow is reduced, resulting in fourth-stage noise reduction.

[0025] Multi-stage noise reduction can significantly reduce the operating noise of air compressors, with individual tests showing a reduction of 2-4 decibels compared to existing technologies.

[0026] Both the first air inlet 11 and the second air inlet 12 are connected to an external air source through an air filter 22. The air filter 22 filters impurities from the external air.

[0027] The exhaust chamber 13 is connected to the braking system and the working device 26 via a condenser 23, a dryer 24, and an air tank 25 connected in sequence. The air tank 25 is provided to store compressed gas and also to provide compressed gas with a stable pressure for the braking system and the working device 26. The condenser 23 and the dryer 24 work together to ensure the dryness and condensation of the compressed air.

[0028] The working principle of this utility model is as follows:

[0029] Air filtered by air filter 22 enters air compressor 4 through first air inlet 11 and second air inlet 12 respectively. Air entering first air inlet 11 enters air intake resonant cavity 16 and air intake chamber 8 through first air intake duct 14 respectively. Air entering second air inlet 12 enters air intake resonant cavity 16 and air intake chamber 8 through second air intake duct 15 respectively. Air entering air intake resonant cavity 16 undergoes first-stage noise reduction, and then enters air intake chamber 8.

[0030] When the air in the intake chamber 8 enters the compression chamber 9 through the intake valve plate 17, it undergoes the second stage of noise reduction. The air is compressed into compressed gas in the compression chamber 9, and the compressed gas undergoes the third stage of noise reduction when it passes through the exhaust valve plate 18.

[0031] Compressed gas enters the exhaust resonant cavity 21 and the exhaust cavity 13 through the first exhaust duct 19, and enters the exhaust resonant cavity 21 and the exhaust cavity 13 through the second exhaust duct 20. The compressed gas in the exhaust resonant cavity 21 undergoes the fourth stage of noise reduction. The gas in the exhaust resonant cavity 21 also enters the exhaust cavity 13. Finally, the compressed gas in the exhaust cavity 13 passes through the condenser 23, the dryer 24 and the air tank 25 in sequence to reach the braking system and the working device 26.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A mechanical noise-reducing air compressor, comprising an intake chamber (8), a compression chamber (9), and an exhaust chamber (10), characterized in that, It also includes a first air inlet (11), a second air inlet (12), an exhaust chamber (13), a first noise reduction structure, a second noise reduction structure, a third noise reduction structure, and a fourth noise reduction structure. The first air inlet (11) and the second air inlet (12) are both connected to an external air source. The first air inlet (11) and the second air inlet (12) are both connected to the intake chamber (8) through the first noise reduction structure. A second noise reduction structure is provided between the intake chamber (8) and the compression chamber (9). A third noise reduction structure is provided between the compression chamber (9) and the exhaust chamber (10). The exhaust chamber (10) is connected to the exhaust chamber (13) through the fourth noise reduction structure. The exhaust chamber (13) is connected to the braking system and the working device (26).

2. The mechanical noise-reducing air compressor according to claim 1, characterized in that, The first noise reduction structure includes a first air intake (14), a second air intake (15), and an air intake resonant cavity (16). The first air intake (11) is connected to one end of the first air intake (14), and the other end of the first air intake (14) is connected to the air intake resonant cavity (16) and the air intake chamber (8) respectively. The second air intake (12) is connected to one end of the second air intake (15), and the other end of the second air intake (15) is connected to the air intake resonant cavity (16) and the air intake chamber (8) respectively. The air intake resonant cavity (16) is connected to the air intake chamber (8) through a pipe.

3. A mechanical noise-reducing air compressor according to claim 1, characterized in that, The second noise reduction structure is an intake valve plate (17).

4. A mechanical noise-reducing air compressor according to claim 1, characterized in that, The third noise reduction structure is an exhaust valve plate (18).

5. A mechanical noise-reducing air compressor according to claim 1, characterized in that, The fourth noise reduction structure includes a first exhaust duct (19), a second exhaust duct (20), and an exhaust resonant cavity (21). One end of the first exhaust duct (19) is connected to the exhaust chamber (10), and the other end of the first exhaust duct (19) is connected to the exhaust resonant cavity (21) and the exhaust chamber (13), respectively. One end of the second exhaust duct (20) is connected to the exhaust chamber (10), and the other end of the second exhaust duct (20) is connected to the exhaust resonant cavity (21) and the exhaust chamber (13), respectively. The exhaust resonant cavity (21) is connected to the exhaust chamber (13) through a pipe.

6. A mechanical noise-reducing air compressor according to claim 1, characterized in that, Both the first air inlet (11) and the second air inlet (12) are connected to an external air source through an air filter (22).

7. A mechanical noise-reducing air compressor according to claim 1, characterized in that, The exhaust chamber (13) is connected to the braking system and working device (26) via a condenser (23), a dryer (24) and an air tank (25) connected in sequence.

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