Commercial vehicle high-position air inlet pipe assembly device integrating resonant cavity and water retaining structure

Abstract

The commercial vehicle high-position air inlet pipe assembly device integrating the resonant cavity and the water retaining structure comprises an air inlet channel body of a hollow structure, and a resonant and water retaining assembly is installed on one side of the air inlet channel body in an embedded mode. The resonance and water retaining structure comprises a shell, the upper portion in the shell is provided with a slope-shaped structure, the lower portion in the shell is of an arc-shaped curved surface structure, a silencer is installed on the arc-shaped curved surface structure and is of an open shell structure, and a water accumulation groove is formed in the position, located at the bottom of the shell, of one side of the lower end of the silencer. An air inlet grille is embedded in the opening side of the shell, a blocking blade is arranged on the upper portion of the air inlet grille, an air inlet blade is arranged on the lower portion of the air inlet grille, the silencer directly faces the air inlet blade, and a water baffle is formed on the end face of the inner bottom of the silencer; a corrugated pipe is installed at the lower end of the air inlet channel body. According to the commercial vehicle high-position air inlet pipe assembly device integrating the resonant cavity and the water retaining structure, the water retaining function and the noise elimination function are integrated, the narrow space in an air inlet channel assembly is saved, and the water removal and noise elimination performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly devices, in particular to a high-position air intake pipe assembly device for a commercial vehicle with an integrated resonance cavity and a water retaining structure. Background Art

[0002] The high-mounted intake duct assembly is a critical component of the commercial vehicle's air intake system. Its primary function is to introduce clean air into the engine's intake duct, ensuring clean, sufficient air reaches the cylinders, resulting in greater engine power, lower fuel consumption, and improved comfort. Currently, high-mounted intake duct assemblies are widely used in commercial vehicles to meet various performance requirements, which are also increasingly demanding. When the engine is operating, the intake system generates high noise and negative pressure. Due to changes in the flow field and pressure within the intake system under different operating conditions, the intake duct of the intake system can resonate and produce abnormal noise based on engine excitation. Furthermore, high negative pressure reduces the intake system's water removal efficiency. Because existing high-mounted intake duct assemblies are ineffective at eliminating these abnormal noises, the noise from the intake system affects the comfort level within the cab and the compliance with vehicle compliance testing regulations.

[0003] The resonant cavity is an important part of the intake system intake pipe assembly. Its function is to eliminate the specific frequency noise of the intake system to improve the acoustic performance of the vehicle intake system and enhance the comfort of the vehicle. Currently, there are three main types of high-position air intakes for heavy-duty trucks on the market:

[0004] The first type uses a traditional single-structure air intake grille. While the truck is in operation, the grille removes water. However, due to its single structure, its water removal efficiency is relatively low. During operation, water trapped by the upper grille blades flows vertically downward along the blades. When it reaches the grille's lowest blades, the water is drawn back into the high-position air intake duct, reducing its water-retention efficiency and reducing its water removal effectiveness.

[0005] The second type uses a traditional single-structure air intake grille with a water retaining plate structure added behind it. When the truck is in operation, the air intake grille performs its initial water separation function, causing some water to flow vertically downward along the blades. When it reaches the lowest blades, the water is drawn back into the grille. Once the water re-enters the grille, the water retaining plate further separates the water and drains it through the drainage structure, achieving maximum water removal efficiency.

[0006] The third type: The air intake adopts a traditional single-structure air intake grille with a water baffle structure added behind it, and the air intake body is integrated with a resonant cavity. When the truck is in operation, the air intake grille performs the first stage of water separation, and some water will flow vertically downward along the blades. When it flows to the lowest blade of the grille, the water is sucked back into the grille. After the water re-enters the grille, the water baffle structure further separates the water and discharges it through the drainage structure, achieving water removal efficiency. At the same time, the resonant cavity on the body eliminates the intake system noise of a specific frequency. However, the resonant cavity integrated into the air intake body occupies most of the air intake body, increasing the resistance of the air intake assembly. Summary of the Invention

[0007] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, a high-position air intake pipe assembly device for commercial vehicles is provided, which integrates a resonance cavity and a water retaining structure, and integrates the water retaining function and the sound elimination function in one, which not only saves the cramped space inside the air intake duct assembly, but also improves the water removal and sound elimination performance.

[0008] The technical solution adopted by the utility model to solve its technical problems is: a high-position air intake pipe assembly device for commercial vehicles with an integrated resonance cavity and a water retaining structure, comprising an air intake duct body with a hollow structure, and a resonance and water retaining component is embedded and installed on one side of the air intake duct body; the resonance and water retaining structure comprises a shell with an opening on one side, an inclined structure is arranged on the upper inner part of the shell, and an arc-shaped curved surface structure is arranged on the lower inner part of the shell, a muffler is installed on the arc-shaped curved surface structure, the muffler is an open shell structure, and a water accumulation tank is arranged on one side of the lower end of the muffler at the bottom of the shell; an air intake grille is embedded and installed on the open side of the shell, a sealing blade is arranged on the upper part of the air intake grille, and an air intake blade is arranged on the lower part of the air intake grille, the muffler is directly opposite to the air intake blade, and a water retaining plate is formed on the inner bottom end face of the muffler; a bellows is installed on the lower end of the air intake duct body.

[0009] It is further defined that, in the above technical solution, the lower part of the water storage tank is connected to the dust exhaust belt through a pipe.

[0010] It is further defined that, in the above technical solution, mounting grooves are symmetrically provided on both sides of the exterior of the shell, and mounting holes are provided in the mounting grooves.

[0011] It is further defined that, in the above technical solution, a plurality of positioning holes are provided on the outer sides of the four sides of the air intake grille.

[0012] It is further defined that, in the above technical solution, one side of the muffler passes through an external compensating pipe of the shell.

[0013] It is further defined that, in the above technical solution, one side of the muffler is installed in the shell through a support plate.

[0014] The beneficial effect of the present invention is that the present invention proposes a commercial vehicle high-position air intake pipe assembly device with an integrated resonance cavity and a water retaining structure, which integrates the water retaining function and the sound elimination function, thereby saving the cramped space inside the air intake duct assembly and improving the water removal and sound elimination performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the cross-section structure;

[0018] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle resonance and water retaining components;

[0019] Figure 4 yes Figure 3 Schematic diagram of the cross-section structure;

[0020] Figure 5 yes Figure 1 Schematic diagram of the structure of the center air intake grille.

[0021] The numbers in the accompanying drawings are: 1. Air inlet duct body, 2. Shell, 3. Slope-shaped structure, 4. Arc-shaped curved surface structure, 5. Muffler, 6. Water trough, 7. Air intake grille, 8. Sealing blade, 9. Air intake blade, 10. Water baffle, 11. Bellows, 12. Dust exhaust belt, 13. Mounting groove, 14. Positioning hole, 15. Compensating pipe, 16. Support plate. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] See Figure 5 , Figure 5 The dotted line frame in the upper middle portion represents the closed blade 8 region, and the dotted line frame in the lower middle portion represents the air inlet blade 9 region.

[0024] In this application, the water retaining plate with integrated resonance cavity of the air intake grille 7 has three special structures: water collection groove 6, drain outlet and muffler resonance cavity. The water collection groove 6 can collect water blocked by the air intake grille and then discharge it through the drain outlet to prevent the back suction of filtered rainwater. The muffler 5 can eliminate the specific frequency noise of the air intake system.

[0025] The air intake grille 7, the integrated resonance cavity of the water baffle, and the water baffle support structure are injection molded parts. The water trough and the drain outlet are integrally formed and integrated on the water baffle support structure. The first 8 blades on the upper part of the air intake grille 7 are completely blocked, and the blade 8 is blocked to prevent rainwater from high places from being directly sucked into the air intake system. The inclination angle of the 9th blade to the long side of the edge is 30-60 degrees. The tilted arrangement of the air intake blades 9 can block the rainwater and flow along the slope. The rainwater flows along the slope into the water trough. The integrated resonance cavity and the water baffle structure are connected to the water baffle support structure by rivets. The specific frequency noise of the intake system is eliminated by the resonance cavity, thereby improving the quality of the intake sound. The dust bag 12 and the water baffle 10 are combined to realize the drainage function.

[0026] See Figure 1-5 What is shown is a high-position air intake pipe assembly device for a commercial vehicle with an integrated resonance cavity and a water retaining structure, comprising an air intake duct body 1 with a hollow structure, and a resonance and water retaining component embedded and installed on one side of the air intake duct body 1; the resonance and water retaining structure comprises a shell 2 with an opening on one side, a sloped structure 3 is arranged on the upper part of the shell 2, and an arc-shaped curved surface structure 4 is arranged on the lower part of the shell 2, a muffler 5 is installed on the arc-shaped curved surface structure 4, the muffler 5 is an open shell structure, and a water storage tank 6 is arranged on one side of the lower end of the muffler 5 at the bottom of the shell 2; an air intake grille 7 is embedded and installed on the open side of the shell 2, a sealing blade 8 is arranged on the upper part of the air intake grille 7, and an air intake blade 9 is arranged on the lower part of the air intake grille 7, the muffler 5 is directly opposite to the air intake blade 9, and a water retaining plate 10 is formed on the bottom end face of the muffler 5; a bellows 11 is installed on the lower end of the air intake duct body 1.

[0027] The lower portion of the water trough 6 is connected to a dust exhaust belt 12 via a pipe. Mounting slots 13 are symmetrically formed on both sides of the exterior of the housing 2, each containing mounting holes. Several positioning holes 14 are provided on the exterior of the air intake grille 7. One side of the muffler 5 passes through the housing 2 and is connected to an external compensation pipe 15. One side of the muffler 5 is mounted within the housing 2 via a support plate 16.

[0028] The air intake grille 7 proposed in the present application is designed with a water trough 6 and a drain outlet structure to prevent water blocked by the air intake grille blades from being sucked back into the high-position air intake duct. The water entering the high-position air intake duct is then filtered through the water retaining ring and the dust bag. The two-stage filtration of the air intake duct improves the water removal efficiency of the high-position air intake duct. The integrated resonant cavity and water retaining structure can eliminate the specific frequency noise of the air intake system through the resonant cavity, thereby improving the air intake sound quality. The high-position air intake duct assembly of the present application has low original resistance and high water removal efficiency, and can eliminate the specific frequency noise of the air intake system. It provides dry air to the air filter, reduces the risk of air filter element failure, ensures the normal operation of the air filter, avoids statutory and cylinder pulling or vibration stalling, and is suitable for the normal operation needs of trucks in rainy environments. At the same time, it improves the sound quality of the air intake system, increases the noise inside and outside the cab, and improves the driving comfort of the driver.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-position air intake pipe assembly for a commercial vehicle with an integrated resonant cavity and a water retaining structure, characterized by: It includes an air intake duct body with a hollow structure, and a resonance and water retaining component is embedded and installed on one side of the air intake duct body; the resonance and water retaining structure includes a shell with an opening on one side, a sloped structure is provided on the upper inner part of the shell, and an arc-shaped curved surface structure is provided on the lower inner part of the shell, a muffler is installed on the arc-shaped curved surface structure, the muffler is an open shell structure, and a water storage tank is provided on one side of the lower end of the muffler at the bottom of the shell; an air intake grille is embedded and installed on the open side of the shell, a blocking blade is provided on the upper part of the air intake grille, and an air intake blade is provided on the lower part of the air intake grille, the muffler is opposite to the air intake blade, and a water retaining plate is formed on the inner bottom end surface of the muffler; a bellows is installed on the lower end of the air intake duct body.

2. The high-position air intake pipe assembly device for commercial vehicles with an integrated resonant cavity and a water retaining structure according to claim 1, characterized in that: The lower part of the water trough is connected to the dust exhaust belt through a pipeline.

3. The high-position air intake pipe assembly for commercial vehicles with an integrated resonant cavity and a water retaining structure according to claim 1, characterized in that: The outer sides of the shell are symmetrically provided with mounting grooves, and mounting holes are arranged in the mounting grooves.

4. The high-position air intake pipe assembly for commercial vehicles with an integrated resonant cavity and a water retaining structure according to claim 1, characterized in that: A plurality of positioning holes are arranged on the outer sides of the four sides of the air intake grille.

5. The high-position air intake pipe assembly device for commercial vehicles with an integrated resonant cavity and a water retaining structure according to claim 1, characterized in that: One side of the muffler passes through the shell and is connected to an external compensation pipe.

6. The high-position air intake pipe assembly for commercial vehicles with an integrated resonant cavity and a water retaining structure according to claim 1, characterized in that: One side of the muffler is installed in the shell through a supporting plate.

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